The application relates to a mixing head including a head part and a mixing chamber device which is arranged in the head part. The mixing chamber device has a mixing chamber, which includes at least two inlets for introducing a starting material into the mixing chamber, and an outlet, via which the starting material mixture can be discharged out of the mixing chamber. A control piston is movably arranged in the mixing chamber. The mixing chamber device is releasably arranged in the head part in order to be exchangeable, wherein a transition fit and/or a clearance fit is formed between the head part and the mixing chamber device. The application additionally relates to a production method.
The application relates to a method for monitoring a hydraulic system including several hydraulic components, the hydraulic system comprising at least one pump and subsystems which can be shut off from one another and each have a hydraulic motor and/or a hydraulic cylinder as consumers. According to the application, leakage in the pump and in the subsystems is determined and, on the basis thereof, leakage in the consumers is subsequently determined. These values can be used to determine the efficiencies of the pump and the consumers.
The application relates to a method for the additive manufacture of a product, wherein a melt is discharged via a 3D printing head and the melt is deposited in the form of a melt strand on a printing table to form the product, wherein the 3D printing head and/or the printing table are moved in space in accordance with a product-specific computer program. The application is characterised in that the melt is supplied to the 3D printing nozzle via a needle valve nozzle. For the additive manufacture of the product, a volumetric flow of melt is specified which is specified by the geometry of the melt strand to be deposited and the traverse rate of the 3D printing nozzle and/or the printing table. The nozzle needle is moved between the closed position and the open position in such a way that the specified volumetric flow is maintained during the additive manufacture of the product.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
Device for mixing at least two chemically reactive plastics components under pressure, having a mixing chamber, into which the plastics components are injected in each case by way of a component-feeding opening, wherein a reversible control piston is provided for opening and closing the component-feeding openings and for discharging plastics mixture remaining within the mixing chamber, wherein the control piston is connected to an electric drive. Alternatively, in the case of a transfer mixing head, the cleaning piston may be coupled to an electric drive. A method for operating such a mixing head is also disclosed.
The application relates to a plasticizing unit with a cylinder and a screw that is rotatably mounted in the cylinder and has a screw section which is designed as a shearing section and in which a blocking web encircling the screw core in a helical manner and a main screw thread enclosed by the blocking web are provided. A shearing web runs in the main screw thread parallel to the blocking web at a lower height than the blocking web. In this manner, two screw threads are produced which run parallel to each other and are separated by the shearing web. The threads are designed in the form of wave screw threads. Each wave screw thread is equipped with one or more wave peaks with a surface which is designed in the form of a plateau and forms a wave peak shearing surface, wherein the wave peak shearing surface is located at the same height as the surface of the shearing web in the region. The shearing web surface section which lies in the region of a wave peak shearing surface constitutes a shearing web sharing surface. A wave peak shearing surface and a shearing web shearing surface together form a total shearing surface. A specified total shearing surface together with the inner wall of the cylinder forms a shearing gap in accordance with a shearing gap size specified for the total shearing surface.
B29C 48/625 - Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
B29C 48/65 - Screws with two or more threads neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread
The application relates to a device for depositing a melted material, such as a plastic material, on a surface, in particular a printhead for a 3D printer, including a housing, a discharge nozzle arranged on the housing, and a metering device with a first metering unit and a second metering unit, each of which is designed to receive the melted material and dispense same in a metered manner, wherein the metering device is designed to supply the melted material to the discharge nozzle, in particular an outlet channel of the discharge nozzle, by means of the first metering unit and the second metering unit in an alternating manner or on-the-fly. The application also relates to a printing device, in particular a 3D printing device, such as a 3D printer, and to a method for depositing a material, in particular in a 3D printing method or an additive manufacturing method.
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
A mixing device and method for generating reaction plastic, the mixing device including: a mixing chamber configured to mix reactive components to generate the reaction plastic; a discharge unit, including a discharge pipe connected to the mixing chamber configured to discharge the reaction plastic generated in the mixing chamber; a cleaning piston that is axially aligned with the discharge pipe of the discharge unit and is moveable into the discharge pipe to clean reaction plastic from the discharge pipe; a fluid supply device configured to provide a lubricant into the discharge unit via an outlet to lubricate the discharge unit, a control piston arranged within the mixing chamber and configured to control flow of the reactive components; wherein an axial direction of the control piston is oblique to an axial direction of a discharge pipe of the discharge unit.
B01F 35/12 - Maintenance of mixers using mechanical means
B01F 23/40 - Mixing liquids with liquidsEmulsifying
B01F 23/43 - Mixing liquids with liquidsEmulsifying using driven stirrers
B01F 23/47 - Mixing liquids with liquidsEmulsifying involving high-viscosity liquids, e.g. asphalt
B01F 31/65 - Mixers with shaking, oscillating, or vibrating mechanisms the materials to be mixed being directly submitted to a pulsating movement, e.g. by means of an oscillating piston or air column
A pultrusion device for producing fiber-reinforced profiled articles including: a fiber feed for feeding a fiber bundle; an impregnating tool for impregnating the fiber bundle fed by the fiber feed with a pultrusion matrix; and a shaping tool for forming and curing the fiber bundle impregnated with the pultrusion matrix, in order to produce a fiber-reinforced profiled article. The shaping tool is suitable for moving, in the shaping tool, the fiber bundle impregnated with the pultrusion matrix through a plurality of openings, the inner contours of which define the outer contour of the fiber-reinforced profiled article and which are each fixed in the direction of movement of the fiber bundle. The shaping tool is also suitable for changing, during operation of the pultrusion device, cross-sections of the openings perpendicular to the direction of movement in such a way that the cross-sectional areas of the openings remain constant.
A lamella block is provided for a calibrating device for calibrating an extruded profile, wherein the lamella block includes a lamella structure, which has a plurality of lamellae that are spaced apart from each other by grooves and arranged in the longitudinal direction of the lamella block. The lamella structure has a variably designed division in the longitudinal direction of the lamella block. Further provided is a method for manufacturing the aforementioned lamella block, as well as a calibrating device, which includes a plurality of the lamella blocks mentioned above. Also provided is a system for additively fabricating the lamella blocks mentioned above, a corresponding computer program and a corresponding dataset.
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
B29C 48/90 - Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
A fin block is provided for a calibrating device for the calibrating of an extruded profile. The fin block includes a fin structure, which has a plurality of fins which are spaced apart from one another by grooves and are arranged in longitudinal direction of the fin block, wherein the fins of the fin structure have a variable dimension in longitudinal direction of the fin block. Further, there is provided a method for the production of the above-mentioned fin block and a calibrating device, which includes a plurality of the above-mentioned fin blocks. Furthermore, there is provided a system for the additive manufacture of the above-mentioned fin block, a corresponding computer program and corresponding data set.
B29C 48/90 - Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
B33Y 80/00 - Products made by additive manufacturing
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
A lamella block is provided for a calibrating device for calibrating an extruded profile. The lamella block includes a lamella structure, which has a plurality of lamellae that are spaced apart from each other by grooves and arranged in the longitudinal direction of the lamella block. The lamella structure has two lamella sets, wherein the lamellae of the first lamella set are arranged offset in relation to the lamellae of the second lamella set in the longitudinal direction of the lamella block. Further provided is a method for manufacturing the lamella block mentioned above as well as a calibrating device, which includes a plurality of the lamella blocks mentioned above. Also provided is a system for additively manufacturing the lamella block mentioned above, a corresponding computer program and a corresponding dataset.
B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
B29C 48/90 - Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
A lamella block is provided for a calibrating device for calibrating an extruded profile, wherein the lamella block includes a carrier structure and a lamella structure, and wherein the lamella structure has a plurality of lamellae, which are spaced apart from each other by grooves and arranged in a longitudinal direction (L) of the carrier structure. Neighboring lamellae of the lamella block are arranged laterally offset to each other in the longitudinal direction (L). Also provided is a method for manufacturing the lamella block mentioned above, as well as a calibrating device, which includes a plurality of the lamella blocks mentioned above. Further provided is a system for additively manufacturing the lamella block mentioned above, a corresponding computer program and a corresponding dataset.
B29C 48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
B29C 48/90 - Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
B22F 10/43 - Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by material
B22F 10/31 - Calibration of process steps or apparatus settings, e.g. before or during manufacturing
B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
B29C 48/12 - Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 12/00 - Apparatus or devices specially adapted for additive manufacturingAuxiliary means for additive manufacturingCombinations of additive manufacturing apparatus or devices with other processing apparatus or devices
B22F 12/50 - Means for feeding of material, e.g. heads
A fin block is provided for a calibrating device for the calibrating of an extruded plastic profile, wherein the fin block includes a back structure and a fin structure having a plurality of fins. The fins are spaced apart from one another and arranged on the back structure in longitudinal direction (L) of the back structure. The back structure of the fin block has a plurality of apertures, the shape and/or arrangement of which within the back structure depends on a predetermined mechanical load capacity for the back structure. Furthermore, a method for the production of the above-mentioned fin block and a calibrating device, which includes a plurality of the above-mentioned fin blocks, is provided. Furthermore, a system for the additive manufacture of the above-mentioned fin block, a corresponding computer program and a corresponding data set is provided.
B29C 48/90 - Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B22F 10/31 - Calibration of process steps or apparatus settings, e.g. before or during manufacturing
A device and a method for producing reaction plastics, including a first metering device with a first metering unit and a second metering unit, each of which is suitable for receiving and dispensing a first mixing component in a metered manner, a second metering device which is suitable for receiving and dispensing a second mixing component in a metered manner, and a mixing device which is suitable for receiving and mixing the first mixing component dispensed by the first metering unit and/or the second metering unit of the first metering device and the second mixing component dispensed by the second metering device. For this purpose the first metering unit and the second metering unit are connected to the mixing device such that prior to beginning the mixing process, the first mixing component can be brought to an operating state required for the mixing process, in particular an operating pressure, by guiding the first mixing component from the first metering unit to the second metering unit via the mixing device.
An endless-fibre-reinforced plasticate is described for the additive manufacture of endless-fibre-reinforced plastic components. A plastic material is introduced via a first filling opening into a single-screw extruder and is melted. A mass flow dmF/dt of dry, endless fibre strands is introduced via a second filling opening into the single-screw extruder, impregnated with plastic melt and discharged as fibre-reinforced plasticate. Remote from the second filling opening with regard to conveying, the screw of the single-screw extruder is configured that the fibre strands are discharged substantially undamaged. The mass flow dmF/dt is kept in a first mass flow target ratio to a mass flow dmS/dt of plastic melt discharged from the single-screw extruder, or the mass flow dmF/dt is kept in a second mass flow target ratio to a mass flow dmP/dt of fibre-reinforced plasticate discharged from the single-screw extruder, the exiting endless fibre strands are substantially completely impregnated with plastic melt.
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
A plasticizing unit is provided for an injection unit of an injection moulding machine with a support element arranged beneath the cylinder and connected therewith. To simplify adjusting of the nozzle centre, a fixing element surrounds the end of the support element facing away from the cylinder such that a distance is present between the fixing element and the support element. Several adjusting elements are provided, to produce a force-fitting and/or form-fitting connection between the fixing element and the support element to adjust the position of the support element relative to the fixing element in a plane orthogonally to the cylinder axis. The plasticizing unit can be clamped in and out with its fixing element in a clamping- and positioning system connected with the machine bed. On changeover of the plasticizing unit, an adjusting of the nozzle centre, which has been carried out once, is retained.
A method for producing a composite part. According to the method, a substrate is provided, the substrate having an integrated mixing portion for mixing a component system close to the substrate. The substrate provided is introduced into a cavity of a coating tool in an additional step. The substrate is then coated by flooding the cavity with the component system. The component system is mixed inside the cavity by means of the mixing portion of the substrate.
An injection-moulding machine, having a first platen, which is designed for carrying a first mould half of an injection mould, a second platen, which is designed for carrying a second mould half of the injection mould in such a way that in a closed state of the injection mould the first mould half and the second mould half delimit at least one cavity of the injection mould, and having an index shaft, which is mounted rotatably and axially adjustably on the injection-moulding machine outside the injection mould, is rotationally driven by of a motor of the injection-moulding machine arranged outside the injection mould and has an end portion which protrudes into the injection mould in the installed position of the injection mould in the injection-moulding machine, is designed for fastening on the index shaft an index plate to be arranged within the injection mould and has at least one channel which is designed to feed a fluid to the index plate or to remove a fluid from the index plate, wherein by means of the index shaft, driven by the motor, the index plate is automatically adjustable between a first plate position of the index plate and at least one second plate position of the index plate, and wherein the motor has a hollow motor shaft, through which the fluid is passed.
A nonreturn valve includes two half-shells, arranged in a portion of the screw with a reduced screw diameter. One or more channels for the melt to flow through from the screw into the space in front of the screw is/are provided in each of the half-shells, the channels lie substantially parallel to the longitudinal axis of the nonreturn valve or of the screw. In each of the channels are a ball and, following the ball in the direction of flow of the melt, a pin arranged substantially transversely to the direction of flow of the melt. In the direction of flow of the melt, the channels have a first channel portion, with a channel diameter less than the diameter of the ball, and a second channel portion, with a channel diameter greater than the diameter of the ball, the ball and the pin are arranged in the second channel portion.
A shearing part for a plasticising screw has at least one inlet channel and at least one outlet channel, which run helically around or parallel to the longitudinal axis (X) of the shearing part. The inlet channel is open upstream and closed downstream. The outlet channel is open downstream and closed upstream. The inlet outlet channels are arranged lying directly adjacent to one another and contiguous to one another, and are connected directly with one another fluidically, so that inflowing melt can flow over directly from the inlet channel into the outlet channel, wherein a flow direction transversely to longitudinal axis (X) of the shearing part is produced. The inlet channel has a depth (T) at which shearing action on the melt is substantially avoided. The outlet channel is configured as shearing surface, so that shearing action is present onto melt flowing through the outlet channel.
B29C 48/03 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the shape of the extruded material at extrusion
B29C 48/56 - Screws having grooves or cavities other than the thread or the channel
B29C 48/395 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
22.
System of injection-moulding machine closing units
A system of injection-moulding machine closing units is provided. In addition to two closing units of a first kind and third kind in a standard program, the closing units having closing forces F1 and F2, a further closing unit of a second kind having a closing force F1 is provided. The closing unit of the second kind forms an intermediate variable and is formed from components of the closing units of the first and third kind provided. The platens and the support plate with the dimensions of the closing unit of the third kind (closing force F2) and the toggle lever mechanism of the closing unit of the first kind (closing force F1) and the drive thereof are combined with one another. The articulated levers of the toggle lever mechanism of the closing unit of the second kind are hinged to the support plate and movable platen at a greater distance from the axis of symmetry than the articulated levers of the toggle lever mechanism of the closing unit of the first kind. The articulated levers themselves are identical. At the same time, the crosshead of the closing unit of the second kind is larger in the direction of the articulated levers of the toggle lever mechanism than the crosshead of the closing unit of the first kind such that the toggle lever mechanisms of the two closing units have the same kinematics.
A method for the variothermal temperature control of an injection mould using a temperature control device, the method including at least the following steps: in a learning phase, determining a temperature control characteristic of the temperature-controllable system including at least the injection mould and the temperature control device, in order to obtain individual reference values for the system, with which the temperature control device can be controlled in order to obtain a nominal temperature profile; and in a production phase: temperature control of the injection mould with the reference values determined during the learning phase; determining deviations of an actual temperature profile of the injection mould in relation to the nominal temperature profile during the production cycle and calculating corrected reference values from these deviations; and carrying out a resulting production process using the corrected reference values.
The invention relates to a method for producing molded parts, wherein semifinished product is heated in a heating device and is subsequently fed to a shaping machine. The heating device has a closed housing having a door or has a separately closable opening. The heating device optionally has a dividable housing, in the case of which the housing components can be moved away from each other in order to form an opening and can be moved toward each other in order to form a closed housing. One or more radiant heaters, in particular infrared radiant heaters, are provided in the interior of the housing. Semifinished product is introduced into the interior of the housing and radiant heat produced by the radiant heaters is applied thereto, said semifinished product is heated, and said semifinished product is subsequently removed from the housing. Thermal convection, which is directed substantially upward in the housing, is produced in the interior of the housing. According to the invention, an air flow counteracting the thermal convention, in particular an air flow directed substantially downward in the interior of the housing, is produced in the interior of the housing.
A nozzle unit for a reaction molding machine, comprising an inlet channel prepared for connection to a mixing head outlet and comprising a first dispensing nozzle, which is prepared for applying a reactive mixture and which is connected to the inlet channel in a first operating state, a second dispensing nozzle being present, which is connected to the inlet channel in a second operating state and which is likewise prepared for applying a reactive mixture. Further disclosed is a mixing head device for a reaction molding machine having the nozzle unit, to a reaction molding machine having the mixing head device, and to a method for producing a plastic part.
B29B 7/76 - MixingKneading using other mixers or combinations of dissimilar mixers with stream impingement mixing head
B05B 1/16 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openingsNozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with strainers in or outside the outlet opening having selectively-effective outlets
B05B 1/12 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means capable of producing different kinds of discharge, e.g. either jet or spray
B05B 1/00 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
A method and a device for producing fibre-reinforced plastic mouldings, using coated fibre strands. For the coating of the fibre strands, an air flow of ionised air is produced and guided through a Venturi nozzle. Powder from a storage container is taken by means of a screw conveyor and supplied to the Venturi nozzle, a flow of a powder-air mixture being present or forming behind the Venturi nozzle in the direction of flow. This stream is introduced into a chamber and fibre strands that are earthed or ionised unlike the powder are passed through the chamber and through the powder-air mixture flowing through the chamber, powder particles being deposited on the fibre strands. The fibre strands guided out of the chamber therefore have a coating, and the fibre strands coated in this way are supplied to a plasticising device of an injection moulding machine or an extrusion machine.
B29C 48/154 - Coating solid articles, i.e. non-hollow articles
B29C 48/285 - Feeding the extrusion material to the extruder
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
B29C 48/793 - Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling upstream of the plasticising zone, e.g. heating in the hopper
B29C 48/14 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
A melting device includes a container capable of melting a material supplied in a free-flowing state and storing the material in a liquid state. The container includes a first storage section for storing the material in the free-flowing state, a second storage section for storing the material in the liquid state, and a dividing section provided between the first storage section and the second storage section and configured to hold back the material, when the material is in a non-molten or free-flowing state and to allow passage of the material from the first storage section into the second storage section, when the material is in a molten or liquid state.
The invention relates to a method for introducing an application medium into a weakening gap (5) of a cover (4), such as a covering film or covering skin, wherein a cover (4) is provided which already has a weakening gap (5) formed completely over the length thereof on a first side (6), an application device (2) is positioned toward the first side (6), at a distance from the cover (4) and above the weakening gap (5), wherein a support is arranged in a supporting manner on a second side (7) of the cover (4), facing away from the application device (2), and an application of the application medium into the weakening gap (5) by the application device (2) is carried out. The invention further relates to an application device (1) for this method.
B26D 3/08 - Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
B05C 5/02 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work from an outlet device in contact, or almost in contact, with the work
B62D 25/14 - Dashboards as superstructure sub-unit
B60R 21/2165 - Arrangements for storing inflatable members in their non-use or deflated conditionArrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
29.
Injection moulding machine for producing fibre-reinforced plastic mouldings
An injection moulding machine for producing fibre-reinforced plastic mouldings, having a closing unit and an injection unit, wherein the injection unit has a cylinder and a screw that can be rotated and displaced in the longitudinal direction in the cylinder, the screw having a backflow stop. In the cylinder, filling openings are provided for feeding in a plastic material to be melted and fibre material. To reduce fibre breakage and ensure good mixing, according to the invention a mixing part is provided downstream and/or upstream of the backflow stop, the mixing part being connected to the screw in a rotationally fixed manner for conjoint rotation therewith and having a cylindrical main body with drop-shaped mixing elements arranged thereon.
B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
B29K 105/06 - Condition, form or state of moulded material containing reinforcements, fillers or inserts
30.
Injection moulding machine having a coating installation
The invention relates to an injection moulding machine having a coating installation, wherein the injection moulding machine has at least one fixed platen and one movable platen for the fastening of mould tool halves of at least one mould tool, and the coating installation has first pressure-generating and/or first pressure-conducting means for coating components at a first, relatively low pressure level and second pressure-generating and/or second pressure-conducting means for the coating components at a second, relatively high pressure level, wherein at least all second pressure-generating and all second pressure-conducting means are coupled to the movable platen so as to be jointly movable along a movement path of the movable platen.
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
B29C 45/16 - Making multilayered or multicoloured articles
B29C 67/24 - Shaping techniques not covered by groups , or characterised by the choice of material
B29B 7/74 - MixingKneading using other mixers or combinations of dissimilar mixers
B29B 7/86 - Component parts, details or accessoriesAuxiliary operations for working at sub- or superatmospheric pressure
B29K 75/00 - Use of polyureas or polyurethanes as moulding material
A method for determining an actual volume Vr of an injection-moldable compound during an injection-molding process is disclosed. The injection-moldable compound is introduced into at least one cavity of the mould. The method includes the steps of: a) determining a theoretical volume Vt from process variables at least during a filling phase of the injection-molding process, b) determining and/or measuring at least one value for at least one compound pressure pM, c) selecting a material-specific compression k (p), corresponding to the value of pM, of the injection-moldable compound, and d) calculating an actual volume Vr by taking into account the compression k (p).
In a method for operating an injection moulding machine in the absence of a backflow barrier, plastic melt is injected by a plasticising device into a cavity in a screw antechamber of a plasticising screw adapted to rotate about a longitudinal axis and to move translationally by a drive unit during an injection phase and a holding-pressure phase. A rotational drive of the drive unit is controlled such that a speed of the plasticising screw causes overlay of a backflow of the plastic melt from the screw antechamber back into screw threads of the plasticising screw by an opposing delivery flow as a result of a rotation of the plasticising screw due to a translational injection movement of the plasticising screw. A differential flow is established from the backflow and the opposing delivery flow and influenced at least during the injection phase by influencing the speed of the plasticising screw.
A foaming apparatus for foaming a refrigerator cabinet includes a frame including a supporting structure, and first and second foaming jigs restrained to the supporting structure opposite to each other relative to the supporting structure. The first and second foaming jigs being respectively arranged in a lower position and in an upper position relative to a vertical direction of the foaming apparatus in an operating condition thereof. Each foaming jig includes a bottom wall, peripheral walls configured to enclose an outer shell of the refrigerator cabinet, a plug configured to engage an inner shell of the refrigerator cabinet, and at least one injection head configured to carry out injection of a foaming mixture into the refrigerator cabinet received therein. The peripheral walls and the plug are restrained to the supporting structure, whereas the bottom wall is removably mounted to the peripheral walls.
B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
B29C 44/12 - Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
B29K 75/00 - Use of polyureas or polyurethanes as moulding material
The invention relates to a method for filling a mold cavity of a molding tool in a volumetrically correct manner. A molded part/volume equivalence is ascertained during a learning phase, and production injection-molding cycles are influenced during a production phase such that the molded part/volume equivalence ascertained during the learning phase is also satisfied during the production injection-molding cycle.
The invention relates to a microduct-tube winder (5) for winding up extruded empty plastics microduct tubes having an outside diameter of about 2 to about 20 mm, having a reel (8) which is rotatable about a rotation axis (16) and has a core (9) arranged between two radially projecting flanges (10), the tube being windable on said core (9), and having a tube guiding device (6), via which the tube is fed to the reel (8), wherein a first transfer point is provided on the tube guiding device (6), the tube losing contact with the tube guiding device (6) at said first transfer point in the operating state of the microduct-tube winder (5), and wherein provision is made of a second transfer point, assigned to the reel, the tube coming into contact with the core (9) or a tube layer wound onto the latter at said second transfer point, wherein the tube guiding device (6); is movable in a transverse plane of the reel (8) and the reel (8) is movable in the direction of its rotation axis (16) such that in the operating state the winding angle (a) at the second transfer point always remains the same. The invention also relates to a double station winder (1) having two such microduct-tube winders (5), to a processing system having a microduct-tube winder (5), to a manufacturing system having an extrusion apparatus and a processing system and to a method for winding up an empty plastics tube.
B65H 54/22 - Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling or fault-detecting of the running material, and replacing or removing of full or empty cores
B65H 54/20 - Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers for making packages of specified shapes or on specified types of bobbins, tubes, cores, or formers forming multiple packages
A device for operating a machine equipped with a handling device, particularly an injection molding machine, includes a first stationary operating device secured to the machine, and a second mobile operating device. The operating devices can be designed to be touch screen. The stationary operating device is designed for operating both the machine and the handling device and the mobile operating device is likewise designed for operating both the handling device and the machine. Each operating device is fully equipped for comprehensive configuration or programming and for operating the machine and the handling device. The screen of the mobile operating device is smaller than the screen of the stationary operating device, and predefinable regions of a screen page of the screen of the stationary operating device can be shown successively on the screen of the mobile operating device.
G05B 19/409 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using manual data input [MDI] or by using control panel, e.g. controlling functions with the panelNumerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control panel details or by setting parameters
37.
Device and method for applying a reactive mixture comprised of at least two components to a substrate
c) is subsequently performed with reactive mixture, using the round spray jet, on at least a section of the material applied to the substrate in the first application of material.
B29C 67/24 - Shaping techniques not covered by groups , or characterised by the choice of material
B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
B05B 1/02 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops
B05B 1/04 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops in flat form, e.g. fan-like, sheet-like
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
In a method for coating a molded part (1), in particular a molded part produced by injection molding, the molded part (1) is arranged in a cavity (2) of a molding tool (3), wherein a partial cavity (4) between the molded part (1) and a first molding-tool half (5) of the molding tool (3) remains when a closing force (F) is applied to the molding tool (3) at a first closing-force level. A coating mass (6) is introduced into the partial cavity (4) and the coating mass (6) is cured/cross-linked. The closing force (F) of the molding tool (3) is increased during the curing/cross-linking of the coating mass (6), wherein the increase in the closing force (F) causes a volume reduction of the partial cavity (4) due to elastic deformation of the molding tool (3) and/or elastic deformation of the molded part (1).
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
A guide shoe of a guiding device of a plastic processing machine clamping unit has an elongated main part in clamping direction for attachment of sliding and/or rolling elements. The guide shoe has a connecting element which is spaced from the main part and extends substantially vertically in the clamping direction, and which has a fixing region for fixing the guide shoe to a moving mold platen. The moving mold platen can be fixed solely to the fixing region of the connecting element in decoupled manner from the main part. The connecting element is designed as a deformation element fixed to the main part via a connecting region that forms a target bending zone with respect to a bend about a bending axis substantially parallel to the clamping direction, such that the deformation element additionally forms a target torsion zone about a torsion axis substantially perpendicular to the clamping direction.
A mold clamping device for an injection-molding machine includes a fixed platen, a movable platen, pressure pads for generating a clamping force, and a spindle drive for moving the movable platen. The spindle drive has a non-rotating spindle shaft and a spindle nut which can be rotationally driven by a motor. The spindle shaft has a threaded portion in engagement with a matching thread of the spindle nut. To permit a free relative movement between the spindle drive and the movable platen, a piston-cylinder unit is in operative connection with the spindle drive and has on both sides of the piston pressure medium spaces, which can optionally be hydraulically blocked or connected to one another. In the latter state, the spindle drive is decoupled from the movable platen and freely floating with respect to it.
B29C 45/68 - Mould opening, closing or clamping devices hydro-mechanical
B29C 45/67 - Mould opening, closing or clamping devices hydraulic
B29C 45/56 - Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
B29C 45/17 - Component parts, details or accessoriesAuxiliary operations
41.
Device for the extraction, parallel to the process, of processing products arising during the processing of a workpiece
A device for the extraction of processing products includes a double-walled extraction hood, which has a first inner housing part and a second outer housing part arranged at a distance from the first inner housing part. The two housing parts are arranged coaxial with each other and partially within each other in such a way that an air channel is formed between the two housing parts. The air channel has a front end that can be aligned with the workpiece and a rear end opposite the front end. A flow directed from the front end to the rear end can be created in the air channel. The extraction hood, in particular the inner housing part of the extraction hood, is designed to accommodate at least part of the processing device and can be connected thereto.
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B08B 15/04 - Preventing escape of dirt or fumes from the area where they are producedCollecting or removing dirt or fumes from that area from a small area, e.g. a tool
B24B 55/06 - Dust extraction equipment on grinding or polishing machines
B24B 55/10 - Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
42.
Apparatus and method for user-specific monitoring and control of production
An extruder or injection molding machine with user-specifically monitoring and regulating processing of plastic materials includes a material feed, a plasticizer, and a mold. A process input variable, e.g. cost of the apparatus, raw material, power, and processed quantity, can be inputted with an input device and transmitted to a controller. A process monitoring variable, e.g. the duration of a product cycle, product cost, raw material used/power consumed per product cycle, expected purchase price for a given quantity of a product, and number of product cycles until maintenance, can be determined in real time from a process control variable and/or process input variable. A value of a process monitoring variable, such as the actual desired, or mean value, the value integrated since starting, the history or tendency of this value, can be outputted on an output device in form of a characteristic diagram.
B29C 39/00 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions
43.
Method for sequence programming of an injection molding cycle of an injection molding machine
Disclosed is a method for programming the progress of an injection molding cycle of an injection molding machine. The injection molding cycle includes several sequences which are manually started as a whole or in part in a setup mode and in a teaching mode. In the setup mode, parts of the injection molding machine are first actuated and are tested as to the functionality thereof. The tested parts are then actuated once again in the teaching mode according to the desired sequence of movements, said sequence of movements being stored in a controller of the injection molding machine. Specific actions such as building up and reducing forces and generating holding pressure can also be taught. The individually taught sequences can then be freely combined into new processes in a controller having a suitable operator interface and can be repeated multiple times.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
44.
Mixing head with creep barrier on the cleaning piston
A mixing head includes a mixing device which is secured to a housing and has a mixing chamber for mixing at least two plastic components to form a material mixture. Received in a recess of the housing is a cleaning device which has a cleaning piston for back-and-forth movement in relation to the mixing chamber between a first position in which the cleaning piston is retracted from the mixing chamber and a second position in which the cleaning piston extends into the mixing chamber. The cleaning device has a barrier which interacts with a housing wall for pushing the material mixture radially outside. The barrier has a flank which has an incline which is steeper than an incline of the housing wall.
A method for providing comprehensive documentation information of complex machines and systems, in particular an injection molding machine is disclosed. Each of the machine components has a storage device that stores information specific for the machine component; in addition, an individual identification is assigned to each of the machine parts. An overall documentation of the machine is generated by combining the component-specific information from a first documentation memory and the part-specific information from a second documentation memory. The overall documentation is displayed on an output device to allow an operator to determine an up-to-date machine configuration and machine state and to intervene in operation and maintenance of the machine.
patents
