An injection molding machine including an injection device which performs an injection filling process of injecting and filling a molding material into a mold composed of a movable mold and a stationary mold and having a predetermined mold gap therebetween, a mold clamping device which performs a compression process of applying a predetermined mold closing pressure to the mold into which the molding material has been injected and filled, thereby compressing the molding material, and a molding machine controller which controls the injection device and the mold clamping device, wherein the molding machine controller is configured to allow setting of mold clamping conditions for the clamping device, the mold clamping conditions including a predetermined mold gap between the movable mold and the stationary mold, a predetermined mold clamping force, a predetermined back pressure for the movable mold, a predetermined mold closing pressure, and a predetermined mold closing pressure adjustment condition associated with a compression state of the molding material, the injection device performs the injection filling process of injecting and filling the molding material into the mold of the mold clamping device for which the mold clamping conditions have been set, and the mold clamping device performs the compression process for the mold, into which the molding material has been injected and filled, on the basis of the mold clamping conditions including the mold closing pressure adjustment condition.
B29C 45/56 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans le moule utilisant des éléments de moules mobiles pendant ou après l'injection, p. ex. pour le moulage par injection-pressage
B29C 45/17 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
The present invention provides an injection device (20) comprising a heating cylinder (27), a screw (29), an injection table (26) that supports the heating cylinder (27), a drop port bushing (40) that is attached to the injection table (26), a hopper holding member (50) that is disposed on the drop port bushing (40), and a hopper (28) that is disposed on top of the hopper holding member (50), wherein a resin material stored in the hopper (28) is dropped into the heating cylinder (27) via the hopper holding member (50) and the drop port bushing (40). The drop port bushing (40) is provided with a first gas passage (42) extending upward and leading a gas generated from the resin material in the heating cylinder (27). The hopper holding member (50) is provided with a second gas passage (57) connected to the first gas passage (42) and leading the gas as well as a gas outlet from which to discharge the gas.
This plasticization state diagnosis device (1) for an injection molding machine M diagnoses the plasticization state of a molding material R when the molding material is plasticized by the rotation of a screw (5), the molding material being supplied from a material supply part (4), provided in the rear part of a heating cylinder (2) heated by a heating part (3f ...), to the inside of the heating cylinder (2). The device is provided with: an AE sensor (6) for detecting an AE wave We integrally provided to a temperature sensor (9) which is attached to the heating cylinder (2) and which is for detecting the heating temperature of the heating cylinder (2); and a diagnosis processing part (7) for diagnosing the plasticization state of the molding material R on the basis of the detection result of the AE sensor (6).
B29C 45/47 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans le moule utilisant des vis
G01N 29/14 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet utilisant des techniques d'émission acoustique
4.
SAFETY COVER AND VERTICAL INJECTION MOLDING MACHINE
Provided are a safety cover with good maintainability and an injection molding machine including the safety cover. The safety cover includes: a lower cover attached to a movable plate where a lower mold is installed; and an upper cover provided above the lower cover. The upper cover includes a fixed cover, a lifting cover that is attached to the fixed cover so as to be movable in an up-down direction, and a holding device configured to hold the lifting cover in a predetermined position in the up-down direction. The safety cover further includes a lifting device configured to move the lifting cover up and down.
Basic molding conditions for an initial resin material used at the beginning of production of a predetermined molded product, and a basic melting property related to the molten state of the initial resin material based on the basic molding conditions are obtained. When an additional resin material to which the initial resin material is switched to continue the production of the molded product is used, second molding conditions for the additional resin material and a second melting property related to the molten state of the additional resin material based on the second molding conditions are obtained, and a conversion process, including at least conversion of a set temperature, is performed for the second molding conditions by a predetermined conversion means such that the second melting property approximates the basic melting property.
A plurality of AE sensors 6r, 6f are provided on a heating cylinder 2 at a plurality of different positions Xr, Xf in a forward-rearward direction Fs so as to detect AE waves AE waves We. Position data Dx related to a position where each AE wave We is generated are obtained on the basis of arrival times Tr, Tf of the AE wave We obtained from the AE sensors 6r, 6f. For each combination of a predetermined sampling period Tp and a predetermined set of the position data Dx, the number of times AE wave signals Sfe, etc. related to the generated AE wave We have exceeded a threshold value L set beforehand is obtained as attack number data Da. The number of AE wave signal components Sp having exceeded a threshold value set beforehand is obtained as event count data De. At least a generation pattern Ps of sets of the attack number data Da and sets of the event count data De which correspond to sets of the position data Dx is graphically displayed.
A heater which is adaptable to an electric energy which permits a power source voltage expected at an arbitrary place of use is selected and is attached to an injection molding machine in advance. When the injection molding machine is installed at the place of use, the power source voltage of a power source is obtained, as an actual power source voltage, directly or indirectly by a molding machine controller provided in the injection molding machine, an energization gradient ratio is calculated, as a conversion factor, on the basis of the ratio of the actual power source voltage to the rated voltage of the heater provided in the injection molding machine, and supply power to the heater is controlled by a power distribution process of multiplying a controlled variable associated with the heater by the conversion factor.
For each of different resins R, a zero shear viscosity no of each resin R is obtained by using a conversion function expression whose parameters are a melt flow rate (MFR) and a set temperature of a heating cylinder and is registered. Also, a purge resin required amount Wu corresponding to a viscosity difference ηd between the zero shear viscosity ηof of a former resin Rf and the zero shear viscosity ηos of a succeeding resin Rs is registered. When resin switching is performed, the zero shear viscosity ηof of the former resin Rf and the zero shear viscosity ηos of the succeeding resin Rs are obtained by inputting the MFR of the former resin Rf and the MFR of the succeeding resin Rs to a molding machine controller, the viscosity difference ηd between the zero shear viscosity ηof of the former resin Rf and the zero shear viscosity ηos of the succeeding resin Rs is obtained, an amount of a purge resin required for resin switching is obtained as a purge resin required amount Wu, and at least the obtained purge resin required amount Wu is displayed.
A predetermined mold gap is provided beforehand between a movable mold and a stationary mold of a mold by a mold clamping device. A mold clamping pressure is set to zero, and a predetermined back pressure is set for the movable mold. Subsequently, the injection device is caused to start injection of the molten resin into the mold for which the mold gap, the mold clamping pressure, and the back pressure have been set. When a predetermined injection end condition set beforehand is satisfied as a result of progress of an injection filling process, a filling end process of ending the injection filling process is performed.
Operation data Dm related to the operation state of an injection molding machine M are acquired, and the acquired operation data Dm are stored in a molding machine controller 2 at least temporarily. User data Du are created, and an information stored code Cm is created using a graphic pattern in which the user data Du are stored. The user data Du contain operation data Dmm in a predetermined period of time Tm, identification data Di for identifying the operation data Dmm, and a transmission destination URL, which is a transmission destination on the internet N to which the operation data Dmm and the identification data Di are to be transmitted. The created information stored code Cm is displayed on a display 3 appended to the molding machine controller 2.
A vertical injection molding device (10) is provided with: a mold clamping device (20) in which a mold clamping axis (20a) is vertical; a turntable (23) on which a lower mold (13) is mounted and moves between a mold clamping position and a product take-out position; and an injection device (50) in which an injection axis (50a) is vertical, wherein the injection device (50) has: a left and right pair of a first heating cylinder (53L) and a second heating cylinder (53R); and a Y-shaped adapter (80) that is connected under the first heating cylinder (53L) and the second heating cylinder (53R), merges the resin material from the first heating cylinder (53L) and the resin material from the second heating cylinder (53R), and injects the merged resin material from a single nozzle (53a).
B29C 45/13 - Appareils de moulage par injection avec au moins deux unités d'injection coopérant avec un seul moule
B29C 45/10 - Appareils de moulage par injection avec des moules ou des unités d'injection utilisables les uns par rapport aux autres dans des dispositions ou des combinaisons différentes
A virgin material plasticization time Tv, which is a time required for a screw to reach a predetermined plasticization end position Xe when only a virgin material Rv is plasticized, a crushed material plasticization time Ts, which is a time required for the screw to reach the predetermined plasticization end position Xe when only a crushed material Rs is plasticized, are measured and registered as basic time data Do. Actually measured time data Dp are obtained by measuring a crushed material mixed material plasticization time Tm when a molded product is produced by using the crushed material mixed material Rm, the crushed material mixed material plasticization time Tm being a time required for the screw to reach the plasticization end position Xe in a predetermined shot. The crushed material ratio Px in the crushed material mixed material Rm is obtained on the basis of the virgin material plasticization time Tv, the crushed material plasticization time Ts, and the crushed material mixed material plasticization time Tm. An output process is performed on the obtained crushed material ratio Px.
B29C 45/00 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet
B29C 45/77 - Mesure, commande ou régulation de la vitesse ou de la pression de la matière à mouler
B29C 45/78 - Mesure, commande ou régulation de la température
To provide a preview display function that enables preview display and confirmation of various setting operations of an injection molding machine, and an injection molding machine provided therewith. The above-described problem is solved by a preview display function for displaying a preview of operations of an injection molding machine, in whole or in part. The preview display function comprises a function for setting the operations of the injection molding machine, in whole or in part, on a setting screen, a function for displaying a preview display screen for displaying the operations thus set, and a function for playing back the operations on the preview display screen thus displayed. At this time, preferably the operations thus set are played back as a moving image displayed three dimensionally or two dimensionally, and the setting screen and the preview display screen are displayed side by side.
G06F 3/04847 - Techniques d’interaction pour la commande des valeurs des paramètres, p. ex. interaction avec des règles ou des cadrans
B29C 45/17 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
G06F 3/0481 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] fondées sur des propriétés spécifiques de l’objet d’interaction affiché ou sur un environnement basé sur les métaphores, p. ex. interaction avec des éléments du bureau telles les fenêtres ou les icônes, ou avec l’aide d’un curseur changeant de comportement ou d’aspect
G06F 3/04842 - Sélection des objets affichés ou des éléments de texte affichés
16.
PLASTICIZATION CONTROL METHOD AND DEVICE FOR INJECTION MOLDING MACHINE
The plasticization control method for an injection molding machine M includes a plasticization step (Sa) in which a molding material charged into a heating cylinder 2 by controlling the rotation of a screw 3 inserted into the heating cylinder 2 is plasticized and performs molding by injecting and filling the plasticized molten resin into a predetermined mold 70 by controlling the advance of the screw 3, wherein at least a torque target value Ts for screw rotation torque T and an upper limit value Ru for screw rotation speed R are set in advance as molding conditions, and rotation control of the screw 3 is performed while performing priority control on the torque target value Ts during plasticization.
Machines and machine tools for treatment of materials and for manufacturing; Metalworking machines, apparatus and tools; Plastic processing machines and apparatus; Machines and apparatus for manufacturing rubber-goods; Injection molding machines and apparatus for pulp; Pulp making, papermaking or paper-working machines and apparatus.
19.
MOLDING ASSISTANCE DEVICE FOR INJECTION MOLDING MACHINE
A molding assistance device includes: a data input section for inputting resin related data including reinforcing fiber data, and molding machine related data including at least screw data; a calculation expression data setting section in which solid phase rate calculation expression data are set, the solid phase rate calculation expression data being used for calculation of a solid phase rate of molten resin containing reinforcing fibers in a heating cylinder on the basis of input data inputted from the data input section and molding condition data set by a molding condition setting section; and a calculation processing functional section which includes at least a solid phase rate calculation processing section and a fiber state calculation processing section. The solid phase rate calculation processing section obtains an estimated solid phase rate of the reinforcing fiber-containing molten resin at the time of completion of metering by calculation processing based on the solid phase rate calculation expression data. The fiber state calculation processing section obtains an estimated breakage rate of the reinforcing fibers at the time of completion of metering.
A molding assistance device includes: a resin item selection section 6 for selecting an item Drc relating to a type of resin and an item Drm relating to a predetermined physical property of the resin from resin data Dr set in a resin data setting section Fmr, a physical property value input section 7 for inputting a plurality of different resin temperatures Et relating to the selected resin and physical property values Em corresponding to the respective resin temperatures Et; a physical property value conversion section 8 for obtaining a physical property value Em corresponding to any resin temperature Et; and a data conversion processing functional section Fe which operates, when a molten state is estimated, so as to provide to a calculation processing functional section Fe a resin temperature Et at the time of the estimation and a physical property value Em corresponding to the resin temperature Et and obtained by the physical property value conversion section 8.
An injection molding pellet is applied for injection molding. The base material of the injection molding pellet is a polylactic resin, and the polylactic resin is mixed with wood grains with a grain size that does not exceed 50 μm.
B29B 9/12 - Fabrication de granulés caractérisés par la structure ou la composition
B29B 9/06 - Fabrication de granulés par division de matière préformée sous forme de filaments, p. ex. combinée avec l'extrusion
B29C 45/00 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet
B29K 67/00 - Utilisation de polyesters comme matière de moulage
B29K 105/00 - Présentation, forme ou état de la matière moulée
B29K 511/14 - Bois, p. ex. panneaux de bois ou panneaux de fibres
An injection molding machine including a mold clamping device for clamping a mold comprising a fixed mold and a movable mold by a predetermined mold clamping force; an injection device for injecting and filling a resin into the mold by a predetermined injection pressure, wherein the mold clamping device enables natural compression of the resin at least as the resin inside the mold solidifies; and a molding machine controller at least including a specific molding condition setting function for setting a specific molding condition by obtaining a parting opening amount which becomes a predetermined gap between the movable mold and the fixed mold during injection filling, a molding injection pressure which becomes an injection pressure capable of molding a good product and a molding clamping force which becomes a mold clamping force capable of molding a good product; a fast injection condition setting function for setting, as a fast injection condition, a fast injection speed from the start of injection, the fast injection speed being higher than the injection speed set by the specific molding condition, and a fast injection section for continuing the fast injection speed; and a molding control function for mold-clamping the mold clamping device by the molding clamping force, setting the molding injection pressure to a limit pressure, injecting and filling the mold by the fast injection condition from the start of injection, and filling the mold by the specific molding condition by the end of the fast injection section.
The injection molding machine is equipped with a molding machine controller 2 that has: a zero point setting control function unit Fs that sets the mold closing position Xz as a zero point Po by moving a movable mold Dm that is at the mold opening position Xo forward to the mold closing position Xz by a mold clamping device Mc; a mold gap setting control function unit Fg that sets the mold gap Lg by moving the movable mold Dm backward from this zero point Po by a stroke length Lgs corresponding to the mold gap Lg set; and an injection filling control function unit Fi that injects and fills a molding material R into a mold D, the mold gap Lg of which has been set.
B29C 45/56 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans le moule utilisant des éléments de moules mobiles pendant ou après l'injection, p. ex. pour le moulage par injection-pressage
24.
Resin switching assist method and apparatus for molding machine
For each of different resins R, a zero shear viscosity ηo of each resin R is obtained by using a conversion function expression whose parameters are a melt flow rate (MFR) and a set temperature of a heating cylinder and is registered. Also, a purge resin required amount Wu corresponding to a viscosity difference ηd between the zero shear viscosity ηof of a former resin Rf and the zero shear viscosity ηos of a succeeding resin Rs is registered. When resin switching is performed, the zero shear viscosity ηof of the former resin Rf and the zero shear viscosity ηos of the succeeding resin Rs are obtained by inputting the MFR of the former resin Rf and the MFR of the succeeding resin Rs to a molding machine controller, the viscosity difference ηd between the zero shear viscosity ηof of the former resin Rf and the zero shear viscosity ηos of the succeeding resin Rs is obtained, an amount of a purge resin required for resin switching is obtained as a purge resin required amount Wu, and at least the obtained purge resin required amount Wu is displayed.
A mold-clamping machine includes a pressure receiving mount, a turn table mounted on the pressure receiving mount so as to be freely turnable, a movable mount placed at a position higher than the turn table, tie bars attached to and extending downwardly from the movable mount, and which pass completely through the pressure receiving mount and a traction mount. The mold-clamping machine clamps a metal mold by moving down the traction mount with reference to the pressure receiving mount. Each of the tie bars is freely movable up and down by each of first to third cylindrical guides provided at the pressure receiving mount. The second cylindrical guide and the third cylindrical guide each include a rectangular flange portion fastened to the pressure receiving mount, and respective attachment attitudes of the second cylindrical guide and the third cylindrical guide are adjustable.
Provided is a polylactic acid resin composition for injection blow molding, the polylactic acid resin composition being obtained by modifying a polylactic acid resin with an organic peroxide and being used for injection blow molding. In this polylactic acid resin composition for injection blow molding, the melt tension at 190°C is 20.0-85.0 cN, and the crystallization temperature in the temperature lowering process at 5°C/min, as measured by using a differential scanning calorimeter, is 120°C or lower or there is no crystallization peak.
Mold clamping conditions, including a predetermined mold gap, a predetermined mold clamping force, a predetermined back pressure for a movable mold, a predetermined mold closing pressure, and a predetermined mold closing pressure adjustment condition associated with the compression state of a molding material, are set beforehand. At the time of molding, an injection filling process for causing the injection device to inject and fill the molding material into a mold of a mold clamping device for which the mold clamping conditions have been set is performed, and, after completion of the injection filling process, a compression process is performed on the basis of the mold clamping conditions including the mold closing pressure adjustment condition.
B29C 45/56 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans le moule utilisant des éléments de moules mobiles pendant ou après l'injection, p. ex. pour le moulage par injection-pressage
B29C 45/17 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
A predetermined mold gap is provided beforehand between a movable mold and a stationary mold of a mold by a mold clamping device. A mold clamping pressure is set to zero, and a predetermined back pressure is set for the movable mold. Subsequently, the injection device is caused to start injection of the molten resin into the mold for which the mold gap, the mold clamping pressure, and the back pressure have been set. When a predetermined injection end condition set beforehand is satisfied as a result of progress of an injection filling process, a filling end process of ending the injection filling process is performed.
A rigid vinyl chloride injection screw which kneads and injects rigid vinyl chloride includes a flight and a groove. L/D is set to be 19.1 where L is an effective screw length and D is a diameter of the injection screw. tf/tm is set to be 2.5 where tf is the width of the flight at a supply portion and tm is the width of the flight at a measure portion. hf/hm is set to be 2.1 where hf is the depth of the groove at the supply portion and hm is the depth of the groove at the measure portion. A compression ratio that is calculated from ((P−tf)×hf)/((P−tm)×hm) is set to be 1.74 where P is a pitch of the injection screw.
B29C 45/00 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet
When a pulverized material resin material including a pulverized material as at least a part is plasticized and injection-molded by rotating a screw inserted in a heating tube, before use of the pulverized material, the area of a particle shape of the pulverized material in one direction is measured, a pulverized material shape index indicating the relative size of the area with respect to the depth of a screw groove is determined by computation processing, and when the size of the pulverized material shape index is equal to or greater than a preset setting value, the screw is determined to be inappropriate, and at least the result of the determination is displayed.
The bulk densities of a virgin material and a pulverized material are previously measured, based on pulverized material bulk density data related to the bulk density of the pulverized material and virgin material bulk density data related to the bulk density of the virgin material obtained by the measurement, a conversion coefficient for a predetermined molding condition when the virgin material and the pulverized material are mixed in a predetermined ratio is determined and registered. When the pulverized material is used, at least the bulk density of the pulverized material which is used is measured, and based on the pulverized material bulk density data, the virgin material bulk density data obtained by the measurement, and the conversion coefficient, processing for modifying the molding condition is performed.
A partial reflux injection function part 5 is provided according to which resin R at the front side of a screw head portion 4s is injected into the metal mold 2 to fill the metal mold 2 with the resin R in synchronization with the refluxing of a predetermined amount of the reflux resin Rm to be used as a part of the resin R to the screw body part 4m side at the rear side of the screw head portion 4s through the inner side of the screw head portion 4s and/or the outer periphery side of the screw head portion 4s. A control function is provided that sequentially performs a plasticization step Wi1 to rotate the screw 4 in the heating cylinder 3 to thereby subject the resin in the heating cylinder 3 to a plasticization processing; an injection step Wi2 to allow, after the completion of the plasticization step Wi1, the screw 4 to move forward to thereby inject, into the metal mold 2, a part of the plasticized resin R accumulated at the front side of the screw head portion 4s of the screw 4 to fill the metal mold 2 with the resin; and a plasticization promotion step Wi3 to allow, after the completion of the injection step Wi2, a part of the remaining part of the accumulated plasticized resin R to be refluxed as the reflux resin Rm to the rear side of the screw head portion 4s.
Basic molding conditions for an initial resin material Cro, Cgo used initially in producing a prescribed molded article, and basic melting properties Pro.Pgo related to the molten state of the initial resin material Cro, Cgo based on the basic molding conditions, are derived. When using an additional resin material Crs.Cgs to switch from the initial resin material Cro, Cgo for producing the molded article, second molding conditions for the additional resin material Crs.Cgs and second melting properties Prs, Pgs related to the molten state of the additional resin material Crs.Cgs based on the second molding conditions are derved, and the second molding conditions are subjected to a conversion process including at least a set temperature using a prescribed conversion means such that the second melting properties Prs, Pgs approximate the basic melting properties Pro.Pgo.
In the present invention, operation data Dm related to an operation state of an injection molding machine M is acquired and the acquired operation data Dm is stored at least temporarily in a molding machine controller 2, and user data Du is created, the user data Du including operation data Dmm during a predetermined period Tm, identification data Di for identifying the operation data Dmm, and a transmission destination URL as a transmission destination on an internet N to which the operation data Dmm and the identification data Di are transmitted. As a result, an information storage code Cm using a graphic pattern storing the user data Du is created and displayed on a display 3 included in the molding machine controller 2.
Provided is a mold-clamping device (20) which has a pressure-receiving platen (22), a turntable (23) that is rotatably placed on the pressure-receiving platen (22), a movable platen (28) that is disposed higher than the turntable (23), and a tie bar (31) that hangs down from the movable platen (28) and that passes through the pressure-receiving platen (22) and the pulling platen (29), and in which a mold (12) is clamped by lowering the pulling platen (29) with respect to the pressure-receiving platen (22), wherein: the tie bar (31) is supported in a raisable/lowerable manner by first to third cylindrical guides (68, 69, 70) which are provided to the pressure-receiving platen (22); the second cylindrical guide (69) and the third cylindrical guide (70) each have a square flange part for fixation to the pressure-receiving platen (22); and the attachment orientations of the second cylindrical guide (69) and the third cylindrical guide (70) can be adjusted by interposing a shim (85, 85B, 85C) between one of the plurality of sides of the square flange part and the pressure-receiving platen (22).
The present invention provides a plasticizing apparatus that plasticizes a resin material, which has been charged into a heating cylinder, by means of the rotation of a screw (72) and ejects the plasticized resin material. With respect to this plasticizing apparatus, the screw (72) internally comprises a temperature control rod (90); the temperature control rod (90) comprises a thermal insulation part that is composed of a thermal insulation plate (92), a heating part that is provided with a heater (98), and a cooling part that is cooled by means of a cooling mechanism (94); and the plasticizing apparatus is provided with a temperature control rod moving mechanism (74) that moves the temperature control rod (90) in the axial direction.
B29C 45/54 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans le moule utilisant des pilons ou des pistons d'injection et des vis de plastification
B29C 45/58 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans le moule Détails
An injection molding support device including a setting unit that sets basic information such as resin material data, screw data, and heating cylinder data, and sets constraint information such as a constraint condition for obtaining an optimum condition, a computation unit that computes an estimated solid phase rate of the resin material on the basis of the basic information and the constraint information by a high-speed computation method using an optimum mathematical processing system, and a display unit that displays a decision index in accordance with a value of the estimated solid phase rate. The estimated solid phase rate is the estimated solid phase rate of the resin material at the screw tip end.
A horizontal injection molding apparatus (10) comprises: a mold clamping device (20) which has a mold clamping shaft (20a) disposed horizontally and which clamps a mold (30); and an injection device (40) which is disposed lateral to the mold clamping device (20) and which injects a resin material into the mold (30). The injection device (40) comprises: a heating cylinder (46) that has a rotatable screw (47) built therein and heats the resin material to a predetermined temperature while agitating the same; a material storage member (60) which is connected to the heating cylinder (46) and stores the resin material; a nozzle (66) which is provided to the material storage member (60) and extends to the mold (30); and an injection cylinder (43) which is provided to the material storage member (60) and injects the resin material from the nozzle (66). The injection cylinder (43) has a cylinder axis (43a) that extends horizontally, while the screw (47) has a screw axis (47a) that extends vertically. The screw (47) has an effective length that does not exceed three times the outer diameter of the screw (47).
B29C 45/54 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans le moule utilisant des pilons ou des pistons d'injection et des vis de plastification
39.
MOLDING ASSISTANCE DEVICE FOR INJECTION MOLDING MACHINE
The present invention comprises: a resin item selection unit 6 that selects an item Drc which pertains to the type of a resin from resin data Dr set in a resin data setting unit Fmr and an item Drm which pertains to a predetermined physical property of the resin; a physical property value input unit 7 that inputs a plurality of different resin temperatures Et... pertaining to the selected resin and physical property values Em corresponding to the respective resin temperatures Et...; a physical property value conversion unit 8 that obtains a physical property value Em which corresponds to an arbitrary resin temperature Et; and a data conversion process function unit Fe that, when inferring a molten state, gives a computing process function unit Fc a resin temperature Et at the time of the inference and a physical property value Em which has been obtained by the physical property value conversion unit 8 and which corresponds to the resin temperature Et.
The present invention comprises: a data input unit Fi for inputting resin-related data Dr including reinforcement fiber data Drg and molding machine-related data Dm at least including screw data Dms; an arithmetic formula data setting unit Fs having set therein solid-phase ratio arithmetic formula data Dsc for calculating a solid-phase ratio Xc of a molten resin that contains reinforcement fibers and that is included in a heating cylinder 4, on the basis of input data Di inputted from the data input unit Fi and molding condition data Ds set by a molding condition setting unit; a solid-phase ratio arithmetic processing unit Fcp which determines an estimated solid-phase ratio Xcs of the molten resin containing the reinforcement fibers at the time of completion of measurement, through arithmetic processing based on the solid-phase ratio arithmetic formula data Dsc; and an arithmetic processing function unit Fc which at least includes a fibrous-state arithmetic processing unit Fcf that determines an estimated breakage rate Yn of the reinforcement fibers at the time of completion of measurement.
A database 3 is previously set which is related to oxidation induction times Tg indicating the deteriorations of individual resins R based on the combinations of a plurality of oxidation induction conditions X including at least different types of resins R and different heating temperatures TH, when the molding condition is set, oxidation induction time derivation processing is performed such that an oxidation induction time Tg based on oxidation induction conditions X including at least the resin R which is used and the heating temperature TH which is set is determined from the database 3 and assistance processing is performed in which the determined oxidation induction time Tg is compared with a residence time Ts until the molten resin R is charged into a mold 2 that is calculated from the set molding condition and in which when the oxidation induction time Tg is shorter than the residence time Ts, the molding condition is corrected so as to shorten the residence time Ts or to prolong the oxidation induction time Tg.
Provided is a vertical injection molding apparatus (10) configured by: a mold clamping device (20), which has a vertical mold clamping shaft (20a) and which clamps a mold (12); and an injection device (50), which is disposed atop the mold clamping device (20) and which injects resin material into the mold (12). The injection device (50) comprises: a heating cylinder (56) that incorporates a rotatable screw and that heats the resin material to a predetermined temperature while agitating same; a material storage member (58) that is connected to the heating cylinder (56) and that stores the resin material; a nozzle (57) that is provided to the material storage member (58) and that extends to the mold (12); and an injection cylinder (54) that is provided to the material storage member (58) and that injects the resin material from the nozzle (57). A screw shaft (66a) of the screw extends vertically, and a cylinder shaft (54a) of the injection cylinder (54) extends horizontally.
B29C 45/54 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans le moule utilisant des pilons ou des pistons d'injection et des vis de plastification
43.
INJECTION MOLDING MACHINE AND INJECTION MOLDING METHOD
The present invention comprises: a mold injection part Ms which has disposed at the axially front Fsf side of a nozzle part 7 thereof an injection cylinder 9 having an injection nozzle 8 provided to the leading end and which is configured as a plunger part 10 to insert the nozzle part 7 into said injection cylinder 9; a valve function part 11 which opens and closes a resin passage 10r formed inside the plunger part 10; and an injection device moving mechanism 12 which moves an injection device Mi in the forward and backward direction Fs. At the time of molding operation, a prescribed amount of resin R that has undergone a plasticization process by the injection device Mi is accumulated in the mold injection part Ms through the valve function part 11 that is opened, then the valve function part 11 is closed, and an injection molding process is performed in which the injection device Mi is moved forward by the injection device moving mechanism 12 so as to cause the resin R to be injected into a mold C.
B29C 45/54 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans le moule utilisant des pilons ou des pistons d'injection et des vis de plastification
A molding opening pattern display unit 2p for graphically displaying a mold opening pattern Xp having varying characteristics of a mold gap Lc relative to time t, and deformation operation units 3c ... for deforming the mold opening pattern Xp are displayed on a display 2 by a pattern operation function unit 3. In a molding condition conversion processing function unit 4, operation amounts Lck ... of the deformation operation units 3c ..., a deformation amount of the graphically displayed mold opening pattern Xp, and a motion physical quantity are associated with each other. When molding conditions are set, the mold opening pattern Xp is graphically displayed on the mold opening pattern display unit 2p and deformed according to a deformation amount corresponding to the operation amounts Lck ... of the deformation operation units 3c .... In addition, the molding condition conversion processing function unit 4 calculates a motion physical quantity corresponding to the deformation amount of the mold opening pattern Xp, and corrects a motion physical quantity serving as a basis of the mold opening pattern Xp on the basis of the motion physical quantity. Then, the molding conditions are set according to the corrected motion physical quantity.
When an injection molding machine performs molding, the mold clamping force on the mold is adjusted on the basis of a mold displacement of the mold or the injection peak pressure and injection foremost position so that the molding is performed without causing flash and by an appropriate mold clamping force with which energy can be reduced. The amount of mold displacement and also the injection peak pressure and the injection foremost position are monitored during automatic operation. If there occurs no mold displacement change exceeding a threshold or if there occurs no injection peak pressure anomaly or injection foremost position anomaly exceeding thresholds, the automatic operation is continued. If the mold displacement change occurs or if the injection peak pressure anomaly and the injection foremost position anomaly occur, the operation of the injection molding machine is stopped.
The molding support device for an injection molding machine is provided with: a temperature control unit which controls the temperature of a material supply unit which supplies a resin material to the inside of a heating cylinder; a basic data input unit which can input resin type; a Controlled temperature data table in which the optimum control temperature by the temperature control unit is set for each resin type; a data processing unit having a temperature setting processing unit which sets the control temperature of the temperature control unit as the control temperature of the temperature control unit by reading the control temperature corresponding to resin type input from the Controlled temperature data table if the resin type is input from the basic data input unit when molding conditions are set, and a molding machine controller having an output processing function unit which displays the control temperature on a display.
A molding injection pressure and a molding clamping force are determined in advance to obtain a parting opening amount, which is a predetermined gap, between a movable mold and a fixed mold of a mold during injection filling. The molding injection pressure and the molding clamping force are determined to obtain a molding injection pressure capable of molding a good product and a mold clamping force capable of molding a good product, respectively, thereby setting a specific molding condition, setting a fast injection speed from the start of injection, which is higher than the injection speed set by the specific molding condition, and setting a fast injection section for continuing the fast injection speed as a fast injection condition, mold-clamping the mold by the molding clamping force during molding, and setting the molding injection pressure to a limit pressure, injecting and filling resin into a mold by the fast injection condition from the start of injection, and injecting and filling resin by the specific molding condition when the fast injection section ends.
To provide a preview display function that enables preview display and confirmation of various setting operations of an injection molding machine, and an injection molding machine provided therewith. The above-described problem is solved by a preview display function for displaying a preview of operations of an injection molding machine, in whole or in part. The preview display function comprises a function for setting the operations of the injection molding machine, in whole or in part, on a setting screen, a function for displaying a preview display screen for displaying the operations thus set, and a function for playing back the operations on the preview display screen thus displayed. At this time, preferably the operations thus set are played back as a moving image displayed three dimensionally or two dimensionally, and the setting screen and the preview display screen are displayed side by side.
G06F 3/04847 - Techniques d’interaction pour la commande des valeurs des paramètres, p. ex. interaction avec des règles ou des cadrans
G06F 3/04842 - Sélection des objets affichés ou des éléments de texte affichés
G06F 3/0481 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] fondées sur des propriétés spécifiques de l’objet d’interaction affiché ou sur un environnement basé sur les métaphores, p. ex. interaction avec des éléments du bureau telles les fenêtres ou les icônes, ou avec l’aide d’un curseur changeant de comportement ou d’aspect
B29C 45/17 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
49.
MOLDING METHOD FOR PRE-PLUNGER-TYPE INJECTION MOLDING MACHINE
This molding method for a pre-plunger-type injection molding machine comprises at least: a plasticization step (S1, S21) in which a molding material that has been introduced by rotating a screw 2 housed in a heating cylinder 2c in a plasticization device Mp is plasticized, and the plasticized resin R is supplied to an injection machine Mi via a supply path 4; and an injection step (S4, S23) in which after the plasticization step (S1, S21), the supply path 4 is closed and the resin R supplied by advancing a plunger 3 housed in an injection cylinder 3c in the injection machine Mi is injected and filled into a mold C from an injection nozzle 5, said molding method further comprising a resin recirculation step (S7, S102) in which the plasticized resin Rr, R present in front of the screw 2 housed in the plasticization device Mp is recirculated to the rear by the advancement of the plunger 3 or the screw 2.
B29C 45/54 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans le moule utilisant des pilons ou des pistons d'injection et des vis de plastification
50.
Molding assistance device for injection molding machine
A molding machine is provided with a basic information setting function unit for setting basic information including resin data relating to pellet material, screw data relating to screw, and molding condition data relating to molding conditions, computation processing function unit comprising a provisional plastication time computation processing unit for calculating a provisional plastication time from the basic information, a melt film heating amount computation processing unit for calculating a heating amount of a melt film from the provisional plastication time obtained from the provisional plastication time computation processing unit, and a plastication delay time conversion processing unit for converting the heating amount of the melt film obtained from the melt film heating amount computation processing unit into a plastication delay time, and an output function unit for outputting plastication delay time or plastication information obtained based on the plastication delay time.
In the present invention, a partial-reflux/injection function unit 5 is provided which fills, by injection, a mold 2 with a resin R positioned at the front of a screw head portion 4s and which also returns, as a reflux resin Rm, a resin in a prescribed amount through the inner side of the screw head portion 4s and/or the outer circumferential side of the screw head portion 4s to a screw body portion 4m positioned at the back of the screw head portion 4s. Alternatively, in the present invention, a molding machine controller C is provided which executes sequentially: a plasticization step Wi1 for plasticizing a resin inside a heating cylinder 3 by rotating a screw 4 inside the heating cylinder 3; an injection step Wi2 for filling, by injection, the mold 2 with a part of a resin R plasticized and accumulated at the front of the screw head portion 4s in the screw 4 through forward movement of the screw 4 after completion of the plasticization step Wi1; and a plasticization promoting step Wi3 for, after completion of the injection step Wi2, returning a part of the residue of the resin R to the back of the screw head portion 4s as a reflux resin Rm.
A mold clamping machine includes a stationary mount, a movable mount, a mold-clamping mechanism and a mold opening and-closing mechanism. The mold-clamping mechanism includes a cylindrical constraining mechanism and has a magnet mechanism built therein. By causing a current to flow or not flow, the constraining mechanism changes to an unconstrained state or to a constraining state. In the unconstrained state, the mold clamping mechanism is movable relative to and along a tie bar. In the constrained state, the mold clamping mechanism becomes unmovable relative to the tie bar. The magnet mechanism positions the mold-clamping mechanism at any desired arbitrary position along the tie bar.
An operation setting device includes a first step of inputting an operation sequence and an operation position of the ejector by touching a desired point in a graph displayed on the setting display screen, a second step of inputting operation parameters including an operation speed, an operation position, an operation time, and an operation pattern of the ejector on the basis of the operation position thus input, and a third step of displaying in the graph and numerically displaying in a numerical value display part of the setting display screen the operation position and the operation parameters thus input. The operation position and operation parameters for each operation set in the first step to the third step are displayed in the graph and numerically displayed in the numerical value display part.
G06F 3/00 - Dispositions d'entrée pour le transfert de données destinées à être traitées sous une forme maniable par le calculateurDispositions de sortie pour le transfert de données de l'unité de traitement à l'unité de sortie, p. ex. dispositions d'interface
G06F 3/04847 - Techniques d’interaction pour la commande des valeurs des paramètres, p. ex. interaction avec des règles ou des cadrans
G06F 3/0481 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] fondées sur des propriétés spécifiques de l’objet d’interaction affiché ou sur un environnement basé sur les métaphores, p. ex. interaction avec des éléments du bureau telles les fenêtres ou les icônes, ou avec l’aide d’un curseur changeant de comportement ou d’aspect
G06F 3/0488 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] utilisant des caractéristiques spécifiques fournies par le périphérique d’entrée, p. ex. des fonctions commandées par la rotation d’une souris à deux capteurs, ou par la nature du périphérique d’entrée, p. ex. des gestes en fonction de la pression exercée enregistrée par une tablette numérique utilisant un écran tactile ou une tablette numérique, p. ex. entrée de commandes par des tracés gestuels
In the present invention, a band heater 10A is formed by stacking an inner case 11, an inside electrical insulating member 12, a heating element 20, an outside electrical insulating member 14, an outer case 15, and a band 16. The outside electrical insulating member 14 is mica (mica) having a thickness five- to ten-fold that of the inside electrical insulating member 12.
A preheating part 21, a heating part 22, and a heat-maintaining part 23 are disposed in that order from a base to a tip of a heating cylinder 12 in an injection device. In the heating part 22, the amount of heat transferred to the heating cylinder 22 is q1. A heating mechanism 20 is configured such that, in the preheating part 21, an amount q4 of heat transferred to the heating cylinder 22 is greater than the transferred heat amount q1, and the heating mechanism 20 is configured such that, in the heat-maintaining part 23, an amount q6 of heat transferred to the heating cylinder 22 is less than the transferred heat amount q1.
An injection molding machine is provided with an electrical circuit 40 which has a servo driver 50 that drives and controls a servo motor 36. The electrical circuit 40 is provided with: the servo driver 50, which has a conversion circuit 52 that converts the AC current of a prescribed voltage inputted from a commercial AC power supply 17 to a voltage and frequency used to control the servo motor 36; and a DC power supply circuit 60, which converts the AC current of a prescribed voltage inputted from the commercial AC power supply 17 to a DC current of a supply voltage lower than the prescribed voltage, and outputs the DC current. The conversion circuit 52 is provided with a converter unit 53, a smoothing capacitor 55 and an inverter unit 56. The servo driver 50 and the DC power supply circuit 60 are connected via a bypass circuit 80 which includes a backflow prevention circuit 81 that allows current to flow from the smoothing capacitor 55 towards the DC power supply circuit 60.
An injection device has a screw disposed in a heating cylinder so as to be rotatable and movable in an axial direction. An injection stage supports the heating cylinder. A material supplying unit supplies a resin material to the heating cylinder. A material introducing member is disposed between the material supplying unit and the heating cylinder and introduces the resin material from the material supplying unit to the heating cylinder, The material introducing member has a cylindrical portion fitted in a vertical hole provided in the injection stage, and a lower part of the cylindrical portion is in abutting contact with the heating cylinder. A heat medium passage extends inside a sidewall of the cylindrical portion for flowing therethrough a temperature-controlled heat medium, and a heat-insulating air space is formed between an outer circumferential surface of the cylindrical portion and a circumferential surface of the vertical hole.
[Problem] To provide an injection-molding assisting device that is capable of assisting determination of whether or not a condition is at an appropriate value when performing injection filling and/or that is capable of presenting an optimal condition when performing injection filling. [Solution] The above problem is solved by an injection-molding assisting device having: a setting unit that sets basic information, such as resin material data, screw data, and heating cylinder data, and that sets restriction information, such as restriction conditions for obtaining optimal conditions; a computing unit that computes, on the basis of the basic information and the restriction information, estimated solid-phase rates of a resin material by using a high-speed computation method performed by an optimal mathematical processing system; and a display unit that displays a determination index in accordance with the values of said estimated solid-phase rates. The estimated solid-phase rates may be estimated solid-phase rates of the resin material at a screw distal end, and the estimated solid-phase rates may be displayed in the form of a profile consisting of two or more estimated solid-phase rates having at least a first estimated solid-phase rate of the resin material at the screw distal end and a second estimated solid-phase rate of the resin material at a section other than the screw distal end.
[Problem] To provide an injection molding assistance device that is capable of assisting a determination of whether a condition during injection filling has an appropriate value, and/or is capable of presenting the optimum condition during injection filling. [Solution] The abovementioned problem is solved by an injection molding assistance device that is configured so as to have: a setting unit for setting resin material data, screw data, heating cylinder data, and other basic information and setting constraint information such as a constraint condition for obtaining an optimum condition; a computation unit for computing an estimated solid phase ratio of a resin material through use of a high-speed computation method using an optimum mathematical processing system on the basis of the basic information and the constraint information; and a display unit for displaying a decision index that corresponds to the value of the estimated solid phase ratio. The estimated solid phase ratio is the estimated solid phase ratio of the resin material at a screw distal end, and the estimated solid phase ratio may be displayed as a profile comprising two or more estimated solid phase ratio having at least a first estimated solid phase ratio of the resin material at the screw distal end and a second estimated solid phase ratio of the resin material other than at the screw distal end.
A mold clamping device includes a base, a stationary platen fixed to the base and supporting a stationary mold, a movable platen movable on the base and supporting a movable mold, and a mold clamping mechanism for clamping the movable mold against the stationary mold. Tie bars extend from the stationary platen completely through both the movable platen and the mold clamping mechanism. A shaft supporting plate is fixed to the base and has openings through which the tie bars slidably extend for supporting the tie bars. The shaft supporting plate terminates at its lower end portion in two spaced-apart shoes that are fixed to the base. The bottom surface of each shoe has a larger area than the cross-sectional area of the shaft supporting plate situated vertically above the shoe.
When an injection molding machine performs molding, the mold clamping force on the mold is adjusted on the basis of a mold displacement of the mold or the injection peak pressure and injection foremost position so that the molding is performed without causing flash and by an appropriate mold clamping force with which energy can be reduced. The amount of mold displacement and also the injection peak pressure and the injection foremost position are monitored during automatic operation. If there occurs no mold displacement change exceeding a threshold or if there occurs no injection peak pressure anomaly or injection foremost position anomaly exceeding thresholds, the automatic operation is continued. If the mold displacement change occurs or if the injection peak pressure anomaly and the injection foremost position anomaly occur, the operation of the injection molding machine is stopped.
In a mold clamping apparatus, a mold clamping mechanism is provided with a half nut, and a tie bar is provided with circumferential groove configured to meshed with the teeth of the half nut. A strong-force mold opening mechanism that opens molds at an initial stage of mold opening extends across a space separating a movable platen and the mold clamping mechanism and is connected to the movable platen and the mold clamping mechanism. The strong-force mold opening mechanism is set so as to have greater axial force and shorter stroke than those of a mold opening and closing mechanism. A control unit controls opening and closing of the half nut, controls the strong-force mold opening mechanism and controls the position of the half nut in such a way that the half nut is synchronized with the circumferential groove by the strong-force mold opening mechanism.
An injection molding apparatus has a mold clamping device that includes a traction platen disposed below a pressure-receiving platen, a movable platen disposed above the pressure-receiving platen and configured to be moved up and down by a mold opening and closing mechanism, and tie bars extending downward from the movable platen and penetrating the pressure-receiving platen and the traction platen. The mold clamping device is configured to clamp molds disposed between the pressure-receiving platen and the movable platen. Each tie bar has a tooth portion at its lower end that engages with a tooth portion of a half nut connected to an underside of the traction plate. An injection device arranged on the movable platen includes a heating cylinder having a screw for feeding resin material through a nozzle to an upper one of the molds, and a purging cover encloses a space between the lower end portion of the heating cylinder and the movable platen.
This molding assistance device for an injection molding machine is provided with: a temperature control unit 6 that controls the temperature of a material feeding unit 5 which feeds a resin material R into a heating cylinder 4; and a molding machine controller 10. The molding machine controller has: a basic data input unit Fi which can accept input of the type of a resin; a data processing unit F that has a controlled temperature data table DT having set for each type of a resin an optimal controlled temperature Tr controlled by the temperature control unit 6 and that has a temperature setting unit Fcs which reads a controlled temperature Tr corresponding to the type of a resin inputted from the controlled temperature data table DT when the type of the resin is inputted from the basic data input unit Fi during setting of a molding condition, to thereby set the read controlled temperature Tr as the controlled temperature Tr of the temperature control unit 6; and an outputting function unit Fd that displays the controlled temperature Tr on a display 7.
Provided are a basic data input unit to input basic data including molding conditions data related to molding conditions and screw data related to the form of the screw; a calculation formula data setting unit to set solid phase rate calculation formula data to calculate the solid phase rate of the molten resin in a heating cylinder based on this basic data; a calculation processing function unit having a solid phase rate calculation processing unit to use calculation processing based on the basic data and the solid phase rate calculation formula data to calculate an estimated solid phase rate of the molten resin at the measurement completion; and an output processing function unit that performs display processing to display information related to the estimated solid phase rate on a display.
B29C 45/78 - Mesure, commande ou régulation de la température
G01N 25/02 - Recherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant les changements d'état ou de phaseRecherche ou analyse des matériaux par l'utilisation de moyens thermiques en recherchant le frittage
A detector attachment unit is provided that has at least two or more mounting hole sections for which the temperature detector is detachably attached to the outer surface of the heating cylinder and the temperature detector can be attached at different selected positions in at least the axial direction of the heating cylinder. The temperature control system includes an inner wall face temperature conversion function unit to perform conversion processing to convert the heating temperature detected by the temperature detector to the inner wall face temperature of the heating cylinder, and an inner wall face temperature display function unit to perform at least display processing on the inner wall face temperature obtained by this inner wall face temperature conversion function unit.
An injection apparatus includes a heating cylinder having a nozzle for injecting resin material, a drop-port block that supports the heating cylinder, an injection stage extending so as to be orthogonal to the lengthwise axis of the heating cylinder while supporting the drop-port block, and a pair of injection-apparatus moving mechanisms that moves the heating cylinder. The drop-port block is provided with a supporting stage extending in the direction orthogonal to the lengthwise axis, and the injection-apparatus moving mechanism is connected to the supporting stage and to a stationary mount which supports a stationary mold. The supporting plate extends alongside the injection stage with a clearance therebetween so that deformation of the supporting stage when the nozzle is pressed into contact with the stationary mold is not transmitted to the injection stage.
[Problem] To provide an operation setting device and an injection molding machine, wherein, in the setting of an ejector operation of the injection molding machine, complicated setting for performing an ejector operation and complexity of a screen accompanying the same are eliminated, and the setting of the ejector operation of the injection molding machine is facilitated. [Solution] Provided is a device for setting the operation of an ejector, having a setting display screen of a touch panel type, the device executing: a first step for inputting an operation sequence and an operation position of the ejector by touching any point in a graph displayed on the setting display screen; a second step for inputting operation parameters including operation speed, operation position, operation time and operation pattern of the ejector on the basis of the input operation position; and a third step for displaying the input operation position and operation parameters on the graph on the setting display screen and numerically displaying the same on a numerical display section, wherein the operation position and the operation parameters for each operation, which are set in the first step to the third step, are displayed on the graph 9 and numerically displayed on the numerical display section 7.
[Problem] To provide: a preview display function enabling preview display and confirmation of a variety of setting operations in an injection molding machine; and an injection molding machine provided therewith. [Solution] The foregoing problem is solved by configuring the preview display of the operation of a part or the entirety of an injection molding machine to include: a function for setting the operation of a part or the entirety of the injection molding machine on a setting screen; a function for displaying a preview display screen for displaying the set operation; and a function for reproducing the operation on the displayed preview display screen. Preferably, the set operation is reproduced as three-dimensionally or two-dimensionally displayed video and the setting screen and the preview display screen are displayed side by side.
Previously, a parting opening amount Lm that is a prescribed gap is generated between a movable mold 2m and a fixed mold 2c of a mold 2 during injection filling, a molding injection pressure Pi that is an injection pressure enabling nondefective molding and a molding clamping force Pc that is a mold clamping force enabling nondefective molding are calculated and set as a specific molding condition Dc, and a fast injection speed Vf since an injection start that is faster than an injection speed set under the specific molding condition Dc and a fast injection section Zf at which the fast injection speed Vf is continued are set as a fast injection condition Df. During molding, mold clamping is performed with the molding clamping force Pc, the molding injection pressure Pi is set at a limit pressure Ps, a resin R is injected and filled in the mold 2 under the fast injection condition Df when an injection starts, and the resin R is injected and filled under the specific molding condition Dc when the fast injection section Zf ends.
A mold-clamping machine 10 comprises a fixed plate 13, a movable plate 18, a clamping mechanism 15, and a mold open/close mechanism 16. The clamping mechanism 15 is provided with a tubular arresting mechanism 30. The arresting mechanism 30 contains a magnet mechanism. The arresting mechanism 30 is energized to switch between a non-arresting state and an arresting state. In the non-arresting state, with respect to a tie bar 19, the clamping mechanism 15 is movable along the tie bar 19. In the arresting state, with respect to the tie bar 19, the clamping mechanism 15 is not movable. The magnet mechanism is used to align the position of the clamping mechanism in an arbitrary position on the tie bar.
The present invention comprises: a basic information setting function unit Fi that sets basic information Do which includes resin data Dr relating to a pellet material Rp, screw data Ds relating to a screw 3, and molding condition data Dm relating to a molding condition; a computation processing function unit 5 that has a provisional plastication time computation processing unit Fca which determines a provisional plastication time Hm by means of a computation and from the basic information Do, a melt film heating amount computation processing unit Fcb which determines a heating amount Em of a melt film Rpf by means of a computation and from the provisional plastication time Hm obtained from the provisional plastication time computation processing unit Fca, and a plastication delay time conversion processing unit Fcc which converts the heating amount Em of the melt film Rpf and obtained by the melt film heating amount computation processing unit Fcb into a plastication delay time Hmr; and an output processing function unit 6 that outputs the plastication delay time Hmr or plastication information obtained on the basis of the plastication delay time Hmr.
In the present invention, when a worker changes a setting value of a molding condition setting item, a suitable allowable range is displayed on a setting device to make it easy for the worker to change setting values, in a molding condition setting value input device, without causing damage to an extrusion molding device or damage to a mold, peripheral devices, or the like due to erroneous input. The setting values for molding conditions are restricted to the allowable range based on the mold, molding materials, and the like, and this allowable range is displayed on an allowable range display part 10 of a setting device 7 for molding condition setting items of a molding condition setting value input device 1.
An injection molding apparatus includes an electric motor, a torque variable mechanism that changes an output torque of the electric motor, and a screw driving unit that transmits the output torque of the torque variable mechanism to a feed screw, whereby the feed screw is turned by the electric motor, the torque variable mechanism and the screw driving unit. The torque variable mechanism applies, to the feed screw, a torque equivalent to a hydraulic drive. The electric motor is interchangeable with a hydraulic motor to enable the injection molding apparatus to change between electric and hydraulic drive of the feed screw.
When the deceleration start point is reached, the meter-in side of the hydraulic driving actuator is subjected to a flow rate control to thereby start the deceleration control processing. The position to which the movable unit is moved is detected to use a speed instruction corresponding to the movement position to subject the hydraulic driving actuator to a meter-in control. The position to which the movable unit is moved is detected to calculate the moving speed of the movable unit. Based on the speed instruction, the moving speed is subjected to the feedback control using the meter-out control to the hydraulic driving actuator.
An injection device is provided with: a heating cylinder (27); a screw (29) that is accommodated in the heating cylinder (27) so as to be rotatable and movable axially; an injection base (50) that supports the heating cylinder (27); and a material introduction member (40) that supplies a resin material to the heating cylinder (27). The material introduction member (40) is inserted into a vertical hole part (57) from above that has a first heating medium path for a flow of a temperature-controlled heating medium and that is provided in the injection base (50). The material introduction member (40) has a cylinder part (42) that extends along the vertical hole part (57). A heat insulation air layer (68) having a prescribed thickness is secured between an outer peripheral surface of the cylinder part (42) and a surface of the vertical hole part (57). A lower part of the cylinder part (42) is in contact with the heating cylinder (27).
A database 3 is previously set which is related to oxidation induction times Tg indicating the deteriorations of individual resins R based on the combinations of a plurality of oxidation induction conditions X including at least different types of resins R. and different heating temperatures TH, when the molding condition is set, oxidation induction time derivation processing is performed such that an oxidation induction time Tg based on oxidation induction conditions X including at least the resin R which is used and the heating temperature TH which is set is determined from the database 3 and assistance processing is performed in which the determined oxidation induction time Tg is compared with a residence time Ts until the molten resin R is charged into a mold 2 that is calculated from the set molding condition and in which when the oxidation induction time Tg is shorter than the residence time Ts, the molding condition is corrected so as to shorten the residence time Ts or to prolong the oxidation induction time Tg.
m during the injection filling is larger than the interval of an outer edge portion Xo and the interval of the outer edge portion Xo is equal to or lower than a predetermined size Ls including 0. A molding injection pressure Pi is set as an injection pressure at which a non-defective product can be molded and a molding mold clamping force Pc is set as a mold clamping force by which a non-defective product can be molded. During the production, a mold 2 is clamped by a molding mold clamping force Pc and the clamped mold 2 is filled with the injected resin R by a molding injection pressure Pi. After a predetermined cooling time Tc has passed, a molded piece G is removed.
The present invention is provided with: a basic data input unit Fi for inputting basic data Do including molding condition data Dm relating to a molding condition and screw data Ds relating to the shape of a screw 3; an operation expression data setting unit Fs that has set solid phase rate operation expression data Dc for computing a solid phase rate Xc of a molten resin within a heating cylinder 4 on the basis of the basic data Do; an arithmetic processing functional unit Fc having a solid phase rate arithmetic processing unit Fcp for finding an estimated solid phase rate Xcs of the molten resin at completion of measurement by arithmetic processing based on the basic data Do and the solid phase rate operation expression data Dc; and an output processing functional unit Fd for processing to display information relating to the estimated solid phase rate Xcs on a display 5.
The present invention has temperature detectors 6a... formed on an outer peripheral surface 3f of a heating cylinder 3 so as to allow for detachable mounting, and is provided with detector mounting sections 5a... having two or more mounting hole sections 5af, 5am, 5ar... allowing for mounting of the temperature detectors 6a... by selecting different positions at least in the axial direction Fs of the heating cylinder 3. The present invention also has a temperature control system 7 provided with: an inner wall surface temperature conversion functional unit Ec for converting heating temperatures Twa... detected by the temperature detectors 6a... into inner wall surface temperatures Tia... of the heating cylinder 3; and an inner wall surface temperature display functional unit Ed for performing at least display of the inner wall surface temperatures Tia... obtained by the inner wall surface temperature conversion functional unit Ec.
A safety cover (20) for a mold clamping device that surrounds the mold clamping device (10) of an injection molding machine. The safety cover (20) includes a support frame (21) attached to the mold clamping device (10), a safety door (23), and a connecting mechanism (40) that connects an upper portion of the safety door (23) to the support frame (21). The connecting mechanism (40) includes a first rail (41) on the support frame (21), a second rail (42) on the safety door (23), and an intermediate plate (45) arranged between the first rail (41) and the second rail (42).
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Plastic processing machines and apparatus; Metalworking machines and apparatus; Semiconductor manufacturing machines and apparatus; Rubber-goods manufacturing machines and apparatus; Injection molding machines for pulp; Injection molding machines and apparatus for pulp-making, papermaking or paper-working. Maintenance, installation and repair of machinery.
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Plastic processing machines and apparatus; Metalworking machines and apparatus; Semiconductor manufacturing machines and apparatus; Rubber-goods manufacturing machines and apparatus; Injection molding machines for pulp; Injection molding machines and apparatus for pulp-making, papermaking or paper-working. Maintenance, installation and repair of machinery.
A base for an injection molding machine has two side frames extending parallel with the axis of a drive actuator. Each of the side frames includes a lower flange supported by a bed, an upper flange disposed parallel with the lower flange, at least two webs connecting the upper flange and the lower flange, and a web reinforcing member fixed to the webs and penetrating through the webs. The side frames each have stiffeners connected between the lower and upper flanges and to one of the webs.
A database 3 is preliminarily established of oxidation induction time Tg …, which represents the degradation of different types of resins R … based on a combination of multiple oxidation induction conditions X … including different heating temperatures TH … and the different types of resins R …. When molding conditions are set, processing for deriving an oxidation induction time is performed to thereby determine, from the database 3, an oxidation induction time Tg based on an oxidation induction condition X including at least a set heating temperature TH and a resin R to be used, and at the same time, to compare the determined oxidation induction time Tg with a residence time Ts of the resin R having been molten, the residence time being calculated from the set molding conditions and representing a time until the molten resin is filled in a mold 2. If said oxidation induction time Tg is shorter relative to the residence time Ts, the molding condition is modified to shorten the residence time Ts, or assistance processing for extending the oxidation induction time Tg is performed.
Specific molding information Cs set in advance with respect to information on a type of resin is used and a plurality of different numeric values are combined together to perform resin flow analysis processing by a CAE processing unit 3. A plurality of data items (Ts …) with respect to prescribed molding conditions is acquired from an analysis processing result to construct a basic database 5a. Learning processing by a neural network processing unit 4 is performed with respect to the basic database 5a, and a molding conditions estimation model 5b is constructed and set in a prescribed model storage unit 6b. When the prescribed molding conditions are calculated, the molding conditions estimation model 5b is used and the information on the type of the resin and the specific molding information Cs are input to estimate corresponding molding conditions.
[ Metalworking machine and metalworking machine tools; ] Plastic processing machine and machine tools for processing of plastics; Semiconductor manufacturing machine and semiconductor wafer processing equipment; Rubber-goods manufacturing machine and rubber vulcanizing apparatus; Injection molding machine for pulp; Injection molding machine and parts for compressed-air machines, namely, pressure witches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems sold as an integral component of injection molding machines for pulp-making, papermaking or paper-working
[ Metalworking machine and metalworking machine tools; ] Plastic processing machine and machine tools for processing of plastics; Semiconductor manufacturing machine and semiconductor wafer processing equipment; Rubber-goods manufacturing machine and rubber vulcanizing apparatus; Injection molding machine for pulp; Injection molding machine and parts for compressed-air machines, namely, pressure witches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems sold as an integral component of injection molding machines for pulp-making, papermaking or paper-working
92.
METHOD FOR MANUFACTURING HYDRAULIC INJECTION MOLDING DEVICE, AND DRIVE CONTROL APPARATUS
According to the present invention, when a deceleration start point Xs is reached, a deceleration control process is started by controlling the flow rate of a meter-in side of a hydraulic driving actuator 3. The movement position of a movable unit 4 is detected, and meter-in control of the hydraulic driving actuator 3 is performed by a speed command corresponding to the movement position. At the same time, the movement position of the movable unit 4 is detected, and the movement speed of the movable unit 4 is obtained. Feedback control by means of a meter-out control of the hydraulic driving actuator 3 is performed so that the movement speed matches the speed command.
A heating cylinder cover for covering a heating cylinder includes a temperature control mechanism in which at least a plurality of heating units are provided on an outer circumferential surface of a heating cylinder body along an axial direction. The heating cylinder cover includes a heat-retaining cover part that is integrally provided with a cover body part and a plurality of partition parts. The cover body part is attached to the heating cylinder thereby forming a predetermined covered space between the cover body part and the temperature control mechanism and covers at least an upper half part of the heating cylinder. The partition parts project from an inner surface of this cover body part toward the temperature control mechanism and divides the covered space into a plurality of closed spaces.
A mold clamping apparatus of the type including a mold opening/closing actuator and a mold clamping cylinder, wherein rails for guiding a movable platen are disposed on a base, and the mold clamping cylinder has a left leg and a right leg each disposed between one pair of left and right rails of the rails. The rails provided for guiding the movable platen is used also as a side guide for the mold clamping cylinder. This arrangement can obviate the need for a separate guide member.
m during the injection filling is larger than the interval of an outer edge portion Xo and the interval of the outer edge portion Xo is equal to or lower than a predetermined size Ls including 0. A molding injection pressure Pi is set as an injection pressure at which a non-defective product can be molded and a molding mold clamping force Pc is set as a mold clamping force by which a non-defective product can be molded. During the production, a mold 2 is clamped by a molding mold clamping force Pc and the clamped mold 2 is filled with the injected resin R by a molding injection pressure Pi. After a predetermined cooling time Tc has passed, a molded piece G is removed.
A mold clamping apparatus includes a mold clamping cylinder. The mold clamping cylinder has, in a region thereof located below left and right lower tie bars and above left and right sliders, a left grooved portion opened leftward and elongated horizontally, a right grooved portion opened rightward and elongated horizontally, and a leg portion formed between the left and right grooved portions. The leg portion and the left and right grooved portions together form a constricted part.
A mold clamping apparatus includes a fixed platen, a mold clamping cylinder, a movable platen moved by the mold clamping cylinder toward the fixed platen, and a mold opening/closing actuator for moving the movable platen or the mold clamping cylinder. The mold clamping apparatus further includes a mold thickness adjustment cylinder provided between the mold clamping cylinder and the movable platen, the mold thickness adjustment cylinder being configured to generate an axial force larger than an axial force in an expanding direction of the mold opening/closing actuator and smaller than an axial force in a contracting direction of the mold clamping cylinder.
A thin multilayer container having favorable gas barrier properties is provided using a technique applicable to the molding of the thin multilayer container, by means of ensuring the gas barrier properties at a joint of ends of a film, when the container is molded with disposing the film having the gas barrier properties in a portion to be a container trunk portion.
When molding the container with disposing in advance the film having the gas barrier properties in the portion to be the container trunk portion, while a container surface resin is fed from an injection molding nozzle into a container trunk forming portion of a mold, a gas barrier resin is fed into a position corresponding the joint of the label film as an intermediate layer between a portion of the container surface resin being spread along a core mold and a portion of the container surface resin being spread along a cavity mold.
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
A horizontal mold clamping mechanism includes a rail disposed on a base, a slider fitted with the rail, and a pedestal placed on the slider and provided with a sub-slider guided by a sub-rail. A fixed platen secured to the base supports a fixed mold. A mold clamping cylinder is secured to the pedestal and laid parallel to the fixed platen. A mold opening/closing actuator connects to the pedestal for moving the mold clamping cylinder. A movable platen is secured to the sub-slider and disposed between the fixed platen and the clamping cylinder. A tie-bar passes through the movable platen and the clamping cylinder, and a first linking mechanism selectively links the clamping cylinder to the tie-bar. The movable platen has a through-hole with a diameter greater than an outer diameter of the tie-bar to provide a clearance preventing slide-contact between the tie-bar and an inner surface of the through-hole.
f of at least one of the heating cylinder 2 and the injection nozzle 3, in which an air path 6 for air cooling is formed in the panel member 5 and in which an air outlet and inlet portion 8 allowing air A to be passed from an air supply portion 7 is provided in the air path 6.
