A thin film follow-on foaming device, comprising first drawing pinch rollers (1) and second drawing pinch rollers (2). A heating cabinet (4) is provided between the first drawing pinch rollers (1) and the second drawing pinch rollers (2). The second drawing pinch rollers (2) comprise a second fixed roller (21) and a second movable roller (22), and also provided is a second horizontal cylinder (3) for driving the second movable roller (22) to move horizontally. Below the second fixed roller (21), an auxiliary press roller (5) is provided, and also provided is a press roller drive cylinder (53) for driving the auxiliary press roller (5) to move. The auxiliary press roller (5) comprises a roller core (51), and multiple circular rollers (52) sleeved on the periphery of the roller core (51). All circular rollers (52) have the same diameter. The diameter of the circular rollers (52) is greater than the diameter of the roller core (51). The circular rollers (52) are arranged along the axial direction of the roller core (51), but a gap is maintained between every two adjacent circular rollers (52) along the axial direction of the roller core (51).
An automatic roll discharging and core feeding device, comprising left and right winding shaft supports (11). A clamping assembly (3) is further disposed behind the left winding shaft support; the clamping assembly comprises a clamping plate support (30); the clamping plate support is further mounted with an air nozzle joint (34) and a proximity switch (35) configured to sense the position of a winding shaft (1); the left end of the air nozzle joint is connected to a two-way solenoid valve; a transverse guide rail (22) extending transversely is further disposed on the right of the clamping assembly; a carrying trolley (2) is mounted on the transverse guide rail; left and right roll discharging swing arms (4) capable of swinging back and forth and left and right longitudinal overhead rails (51) are further disposed; a vertical suspension arm (52) is mounted on each of the longitudinal overhead rails in a manner that the vertical suspension arm (52) can slide back and forth; the lower end of the vertical suspension arm is mounted with a mechanical gripper (53); a support arm assembly (6) is further disposed aside the transverse guide rail. Also comprised is an automatic roll discharging and core feeding method. The automatic roll discharging and core feeding device and the automatic roll discharging and core feeding method have a high degree of automation, require no lifting of a top plate (21) of a carrying trolley, and achieve a compact structure.
An unwinding device for use with winding equipment, comprising: an inflatable winding shaft (1), a bearing being sleeved on a bottom right end of the winding shaft (1), and an annular groove (17) also being formed at an outer surface of a bearing outer ring (152); a clamping strip (18) is rotatably mounted on a winding shaft bracket (11) which is on a right side, an annular flange (10) being further formed at the rightmost end of the winding shaft (1), and a transversely extending transverse guide rail (21) also being provided on a right side of the winding shaft bracket (11) which is on the right side; a core pulling trolley (2) is mounted on the transverse guide rail (21) in a transversely movable manner, a left side surface of the core pulling trolley (2) being mounted with two jaw blocks (22) which match in a pair; a longitudinally extending longitudinal guide rail (31) is provided at a bottom side of the winding shaft (1), a carrying trolley (3), which may carry a film roll, being mounted on the longitudinal guide rail (31); a left supporting shaft roller (41) which may support the winding shaft (1) is provided at a bottom front side of a left end of the winding shaft (1), and a right supporting shaft roller (42) which may support the winding shaft (1) is provided at a bottom front side of a right end of the winding shaft (1). Further provided is an unwinding method for use with winding equipment. The unwinding device and unwinding method may automatically complete the unwinding process, and have a high degree of automation.
A film blowing production process comprises the following steps: (1) a bubble thickness measuring device continuously measures initial thicknesses of various points on a bubble along a circumferential direction; (2) various initial bump thickness control mechanisms start to perform a bubble thickness reducing operation; (3) select some from all normal point thickness control mechanisms for performing a bubble thickening operation; (4) calculate an absolute value d of the difference between c and b, i.e., d = |c - b|, wherein c is an average value of actual thicknesses of all the normal points of the bubble, including the thickened ones, after the thickening operation, and b is an average value of the adjusted initial bump thicknesses of the various initial bumps of the bubble after the thickness reducing operation; (5) compare d with e, wherein e is the maximum allowable difference between c and b, and proceed to step (6); and (6) a full-circumference thickness control mechanism reduces the full-circumference thickness of the bubble according to the measurement result of the bubble thickness measuring device, to reduce the average full-circumference thickness of the bubble to a, wherein a is a designed value for the thickness of the bubble. After the produced bubble is rolled, the accumulative error of thicknesses of various points is evenly distributed along an axial direction of the roll, thereby avoiding winder wrinkles, and a traditional mechanical rotational traction process and apparatus are also omitted.
A plastic and flannelette-type fabric combination device comprises an unwinding mechanism and a winding mechanism. A negative-pressure roller (1) is disposed at the downstream part of the unwinding mechanism. A flow casting die head (2) is disposed right above the negative-pressure roller (1). The flow casting die head (2) is provided with a strip-shaped flow casting extrusion die opening (21). Multiple small air holes are formed in the peripheral wall of the negative-pressure roller (1). An inner ring wall (12) is disposed in the negative-pressure roller (1). Multiple separation sheets (13) are disposed between the inner ring wall (12) and the peripheral wall (14) of the negative-pressure roller (1). The separation sheets (13) separate an annular space between the inner ring wall (12) and the peripheral wall (14) into multiple strip-shaped air chambers (15). Each strip-shaped air chamber (15) forms an end face opening at the end face of the negative-pressure roller (1). A fixed arc-shaped chamber (3) is further formed. An arc-shaped opening of the arc-shaped chamber (3) is aligned with end face openings of part of the strip-shaped air chambers (15) in the negative-pressure roller (1). Further provided is a plastic and flannelette-type fabric combination process. Plastic and flannelette-type fabrics can be tightly combined, the combined plastic and flannelette fabrics are tightly bonded, the bonding force is high, and the combined plastic and flannelette fabrics are unlikely to be stripped.
B29C 43/30 - Fabrication d'objets multicouches ou polychromes
B29C 43/32 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
B29C 43/36 - Moules pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés
D06N 7/00 - Matériaux sous forme de feuilles flexibles, non prévus ailleurs, p. ex. fils, filaments, filés ou cordes textiles, collés sur des matériaux macromoléculaires
6.
BLOW-DRYING DEVICE FOR FUNCTIONAL LIQUID COATING OF AGRICULTURAL FILM
Disclosed is a blow-drying device for a functional liquid coating of an agricultural film, comprising a functional liquid dip-coating tank (1), wherein a left and a right scraping roller (2) are arranged above the functional liquid dip-coating tank (1), a left and a right air knife (3) are symmetrically arranged above the left and right scraping rollers (2), and each air knife (3) is provided with an elongated slit-shaped air knife edge (31); each air knife (3) is provided with a mounting seat (32), a transverse guide rail (4) is arranged below the mounting seat (32), and the mounting seat (32) is mounted on the transverse guide rail (4) in such a way that it can slide to the left and right directions; each air knife (3) is further provided with a longitudinal rotating shaft (33), and the longitudinal rotating shaft (33) is rotatably mounted on the mounting seat (32); a stabilization guide roller (5) is further arranged at the position of each air knife (3) close to the air knife edge (31), stabilization guide roller seats (51) at two ends of the stabilization guide roller (5) are fixedly connected and mounted onto the air knife (3), and when the air knife (3) rotates around the longitudinal rotating shaft (33), the stabilization guide roller (5) rotates synchronously; and a magnetic block (52) is further embedded in the middle of each stabilization guide roller (5), and magnetic blocks (52) of two stabilization guide rollers (5) are attracted and fitted to each other. The blow-drying device can clamp the agricultural film, thereby avoiding swinging of the agricultural film due to blowing, and enhancing blow-drying effect of the thin film, and the blowing angle can be adjusted to adapt to different requirements of agricultural films.
B05C 9/04 - Appareillages ou installations pour appliquer des liquides ou d'autres matériaux fluides aux surfaces par des moyens non prévus dans l'un des groupes , ou dans lesquels le moyen pour déposer le liquide ou autre matériau fluide n'est pas important pour appliquer des liquides ou d'autres matériaux fluides aux côtés opposés de l'ouvrage
B05C 11/06 - Appareils pour étaler ou répartir des liquides ou d'autres matériaux fluides déjà appliqués sur une surfaceRéglage de l'épaisseur du revêtement comportant un soufflage de gaz ou vapeur
B05C 9/12 - Appareillages ou installations pour appliquer des liquides ou d'autres matériaux fluides aux surfaces par des moyens non prévus dans l'un des groupes , ou dans lesquels le moyen pour déposer le liquide ou autre matériau fluide n'est pas important pour appliquer un liquide ou autre matériau fluide et exécuter une opération auxiliaire l'opération auxiliaire étant exécutée après l'application
B05C 13/02 - Moyens pour manipuler ou tenir des objets, p. ex. des objets individuels pour des objets particuliers
7.
WINDING-UP AND ROLL-REPLACING APPARATUS FOR WIDE THIN-FILM
A winding-up and roll-replacing apparatus for a wide thin-film comprises a machine frame. A left small swing arm (1), a right small swing arm (1), and a small air cylinder for driving the left small swing arm (1) and the right small swing arm (1) to swing are mounted on the machine frame. Swing ends of the two small swing arms are separately provided with a chuck (3) capable of clamping a standard paper core tube. A film supporting plate (4) is disposed below a cutter (5). A hollowed-out hole (42) transversely extending is formed behind a cut groove of the film supporting plate (4). A lower clamping wheel (43) is disposed at the position of the hollowed-out hole (42), and an upper clamping wheel (44) is mounted above the lower clamping wheel (43). A large swing arm (2) is disposed on the machine frame in a swing manner. A large air cylinder for driving the large swing arm (2) to swing is also disposed on the machine frame. The large air cylinder is a dual-stroke air cylinder provided with a first stroke and a second stroke. A piston rod (201) of the large air cylinder is connected to the large swing arm (2). Small swing shafts (11) of the small swing arms (1) are mounted on the large swing arm (2). A first winding-up roll (61), a second winding-up roll (62), a winding-up roll support (63) and a second motor are also disposed below the large swing arm (2). The present invention is suitable for winding up a wide thin-film, and provides high priming quality and sufficient winding-up power, and a chuck can easy clamp a film roll, so that a high automation degree is provided.
Disclosed is a concentrically telescopic, five-layered co-extrusion blow-moulding machine head, comprising five passage system sets, wherein each passage system set correspondingly guides the flow of one layer of molten material; each passage system set comprises one layer of helical passage located at the upper part of the machine head and a total feed inlet located at the lower part of the machine head; four layers of distribution plates are provided at the lower part of the machine head, including a bottom layer distributing plate, a second layer distributing plate, a third layer distributing plate and a fourth layer distributing plate; end points of all forty horizontally arranged branch passages of the five passage system sets are located on the same circle on a third interface, the eccentric distances of the end points of the forty horizontally arranged branch passages are all consistent and equal, and greater than the eccentric distance of a vertical branch passage of the first passage system set; and end points of the eight horizontally arranged branch passages of each passage system set are uniformly distributed in a circumferential direction, end points of two adjacent horizontally arranged branch passages of the same passage system set are staggered by a position angle of 45°. The blow-moulding machine can produce a very wide five-layered co-extruded plastic film and the machine head thereof is small in volume and easy to machine.
Disclosed is a concentric sleeve-type, multi-layer co-extruded film-blowing machine head, comprising several layers of material passages. Apart from the innermost layer of radial material branch passages, the remaining layers of radial material branch passages comprise branch passage peripheral sections (244, 344, 444, 544) and branch passage central sections (241, 341, 441, 541). Each layer has a total of N material branch passage peripheral sections (244, 344, 444, 544), and each layer has a total of N/4 material branch passage central sections (241, 341, 441, 541). Apart from the innermost layer of radial material branch passages (14), the layers of material central main passages (13, 23, 33, 43, 53) are connected to the branch passage central sections (241, 341, 441, 541). An end of each branch passage central section (241, 341, 441, 541) forks into two upwardly extending subsidiary passages (242, 342). An end of each subsidiary passage (242, 342) again forks into two upwardly extending fine passages (243, 343). An end of each fine passage (243, 343) is connected to one branch passage peripheral section (244, 344, 444, 544). An end of each branch passage peripheral section (244, 344, 444, 544) is connected to a corresponding spiral passage (25, 35, 45, 55). Layers of eccentric material main passages (12, 22, 32) pass through a fan-shaped region between the branch passage central sections (241, 341, 441, 541) in the outer layer. The concentric sleeve-type, multi-layer co-extruded film-blowing machine head has a die neck with a small diameter and of small volume, uses a small amount of alloy steel, and the preheating time of the machine head is short.
A cooling water ring device for a blow-down type film blowing machine comprises an upper cooling water ring (1), an annular upper inner wall (11) is disposed on the upper cooling water ring (1), an annular water reservoir (12) is formed at the periphery of the upper inner wall (11), a water inlet (13) is disposed on the water reservoir (12), a lower cooling water ring (2) is further disposed below the upper cooling water ring (1), the lower cooling water ring (2) comprises an annular lower inner wall (21) and an annular lower outer wall (22), an annular cavity (23) is formed between the annular lower inner wall (21) and the annular lower outer wall (22), the annular cavity (23) is provided with a suction port (26) in communication with the external; the annular lower inner wall (21) assumes a taper shape with a larger upper part and a smaller lower part, a diameter of an upper edge of the annular lower inner wall (21) is equal to a diameter of a lower edge of the annular upper inner wall (11); a wall body of the annular lower inner wall (21) is of a two-layer structure, wherein an outer layer is a metal mesh, an inner layer is an elastic cylinder having multiple pores, and the elastic cylinder leans against the metal mesh. The present invention may improve the cooling speed of bubbles, and avoid the bubbles from falling to deform.
B29C 55/28 - Façonnage par étirage, p. ex. étirage à travers une matriceAppareils à cet effet de pellicules tubulaires soufflées, p. ex. par gonflage
B29C 63/18 - Garnissage ou gainage, c.-à-d. application de couches ou de gainages préformés en matière plastiqueAppareils à cet effet avec des couches ou des gainages tubulaires
B29C 63/20 - Garnissage ou gainage, c.-à-d. application de couches ou de gainages préformés en matière plastiqueAppareils à cet effet avec des couches ou des gainages tubulaires en utilisant une différence de pression, p. ex. sous vide
Disclosed is a stacked multi-layer co-extrusion die head for film-blowing machine, which comprises (N+3) disks (2) stacked top-down and N horizontal flow passages (20), wherein N is an odd integer with N≥5. Each of the horizontal flow passages (20) is formed by splicing an upper demi-groove on the lower surface of the upper disk and a lower demi-groove on the upper surface of the lower disk after being aligned. From the top to down, the lower surface of the first disk is formed with the upper demi-groove, the lower and upper surfaces of the second disk to the (N-1)/2th disk are formed with demi-grooves, the upper surface of the (N+1)/2th disk is formed with the lower demi-groove, the lower surface of the (N+3)/2th disk is formed with the upper demi-groove, the upper surface of the (N+5)/2th disk is formed with the lower demi-groove, the lower surface of the (N+7)/2th disk is formed with the upper demi-groove, the lower and upper surfaces of the (N+9)/2th disk to the (N+2)th disk are formed with demi-grooves, and the upper surface of the (N+3)th disk is formed with the lower demi-groove. The present invention can prevent the material being overburnt or burned when producing multi-layer coextruded film composed of polar materials such as EVOH. At the same time, the overall height is small and the flow passage is short.
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