Double-sided film laminating compounder for plastic woven bag

Abstract

The utility model provides a kind of double-sided film laminating compounder for plastic woven bag, it is related to plastic woven bag production and processing equipment technical field. Including shell body, the inside of shell body is sequentially rotationally connected with discharging roller, film roller, extruding roller and take-up roller from left to right, the inside slidingly connected with annular tube of shell body. Discharging roller is used to pay off woven bag roll, glue material is sent to the inside of annular tube, two groups of spray heads are used to coat glue material on two sides of woven bag, heating mechanism is used to heat two sides of woven bag, so as to improve the temperature of glue material, so that the adhesive effect of woven bag and film is better, then two extruding rollers are used to extrude and compound the film discharged on two woven bags and two film rollers, and annular tube is driven to reciprocate horizontally sliding by driving mechanism, so that two groups of spray heads are used to uniformly spray glue material on two sides of woven bag, reduce dead angle of spraying, improve the film coating effect of woven bag.

Description

Technical Field

[0001] This utility model relates to a laminating machine, specifically a double-sided laminating machine for plastic woven bags, belonging to the technical field of plastic woven bag production and processing equipment. Background Technology

[0002] Woven bags, also known as snake-skin bags, are a type of plastic bag used for packaging. They are typically made from polyethylene, polypropylene, and other chemical plastics. Woven bags have a wide range of uses, primarily for holding and packaging various items, and are widely used in industry. During production, a laminating machine is used to coat both sides of the woven bag, giving it a moisture-proof function.

[0003] Chinese Patent Publication No. CN213648910U discloses a packaging woven bag laminating machine, including a worktable. A support platform is fixedly connected to one side of the top of the worktable. The top of the worktable is provided with a first guide roller, a first pressure roller, a roller, a second pressure roller, and a second guide roller. A sliding groove is provided on one side of the support platform. One end of the roller is slidably connected to the sliding groove, and a connecting frame is fixedly connected to the other end of the roller. A linear motor is fixedly connected to the bottom of the connecting frame. A slide rail is provided on one side of the worktable, and the linear motor is slidably connected to the slide rail. A heating device is provided above the support platform. A temperature sensor is provided inside the heating device. Cylinders are fixedly connected to both ends of the bottom of the inner cavity of the support platform. The output ends of the cylinders are fixedly connected to the heating device. A PLC controller is fixedly connected inside the support platform.

[0004] However, the inventors of the aforementioned device believe it has certain drawbacks. The device is a single-sided laminating device; after laminating one side, the woven bag needs to be flipped over to laminate the other side, making it inconvenient to simultaneously laminate both sides of the woven bag, thus reducing processing efficiency. Therefore, this utility model provides… Utility Model Content

[0005] The purpose of this invention is to provide a double-sided laminating machine for plastic woven bags to solve the above-mentioned problems. This solves the problem that in the prior art, single-sided lamination requires flipping the woven bag after laminating one side to laminate the other side, which is inconvenient for laminating both sides of the woven bag at the same time and reduces processing efficiency.

[0006] This utility model is achieved through the following technical solution: a double-sided laminating machine for plastic woven bags, comprising an outer shell, inside which a feeding roller, a film roller, an extrusion roller, and a take-up roller are rotatably connected from left to right; an annular tube is slidably connected inside the outer shell, and multiple nozzles are fixedly connected to the inner top and bottom walls of the annular tube; a connecting slide rod and a conveying pipe are fixedly connected to both ends of the annular tube respectively; the annular tube is slidably connected inside the outer shell through the connecting slide rod and the conveying pipe; a feeding hose is fixedly connected to the other end of the conveying pipe; a second motor for driving the take-up roller to rotate is fixedly connected to the outer shell; a fixed box is fixedly connected to the outer shell; a driving mechanism for driving the connecting slide rod to slide back and forth is provided inside the fixed box; and a heating mechanism is provided between the film roller and the annular tube.

[0007] Preferably, a first motor for driving the extrusion rollers to rotate is fixedly connected to the outer casing. The output shaft of the first motor is fixedly connected to the shaft of one extrusion roller. Connecting gears are fixedly connected to both shafts of the extrusion rollers. The two connecting gears mesh with each other. By starting the first motor, the two extrusion rollers are driven to rotate together under the meshing action of the two connecting gears.

[0008] Preferably, the driving mechanism includes a connecting rod that rotates inside the fixed box. A rotating cylinder is fixedly connected to the outer surface of the connecting rod. A rotary extrusion groove is formed on the outer surface of the rotating cylinder. One end of the connecting slide rod extends into the interior of the fixed box. A connecting rod is fixedly connected to one end of the connecting slide rod. An extrusion bead is fixedly connected to one end of the connecting rod. The extrusion bead slides inside the rotary extrusion groove. The connecting rod is driven to rotate, and the extrusion bead is extruded by the rotary extrusion groove on the outer surface of the rotating cylinder. Under the connecting action of the connecting rod, the connecting slide rod is pushed to reciprocate.

[0009] Preferably, a fixed slide rod is fixedly connected inside the fixed box, and the connecting rod is slidably connected to the outer surface of the fixed slide rod, so that the connecting rod can slide stably inside the fixed box under the action of the fixed slide rod.

[0010] Preferably, one end of the connecting rod extends to the outside of the fixed box, and a sprocket is fixedly connected to one end of the connecting rod and the shaft end of the extrusion roller. The two sprockets are connected by a transmission chain. Under the action of the sprocket and the transmission chain, the connecting rod rotates inside the fixed box during the rotation of the extrusion roller.

[0011] Preferably, the heating mechanism includes two fixed plates fixed inside the outer shell, and an electric heating plate is fixedly connected to one side of each of the two fixed plates that are close to each other. The woven bag passing between the two fixed plates is heated by activating the electric heating plate.

[0012] Preferably, a receiving box is placed inside the outer shell, and the receiving box is located directly below the annular tube. The receiving box is used to collect excess adhesive.

[0013] This utility model provides a double-sided laminating machine for plastic woven bags, which has the following beneficial effects:

[0014] 1. This device unwinds woven bag rolls using a feeding roller, feeds adhesive into the annular tube, and coats both sides of the woven bag with adhesive using two sets of nozzles. A heating mechanism heats both sides of the woven bag to increase the temperature of the adhesive, resulting in better adhesion between the woven bag and the film. Then, two extrusion rollers extrude and laminate the woven bag and the film released from the two film rollers. A drive mechanism drives the annular tube to slide horizontally back and forth, allowing the two sets of nozzles to evenly spray adhesive onto both sides of the woven bag, reducing spray dead zones and improving the lamination effect of the woven bag.

[0015] 2. The device uses a sprocket and a transmission chain to make the extrusion roller rotate together with the connecting rod during the rotation process. The extrusion groove on the rotating cylinder extrudes the extrusion beads at one end of the connecting rod, which pushes the connecting slide rod to slide back and forth on the outer shell, thereby driving the annular tube to slide horizontally back and forth inside the outer shell. Attached Figure Description

[0016] Figure 1 This is a perspective sectional view of the present invention.

[0017] Figure 2 This is a perspective view of the present utility model;

[0018] Figure 3 This is a schematic diagram of the mounting box of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the fixing box of this utility model.

[0021] [Explanation of Key Component Symbols]

[0022] 1. Outer shell; 2. Feeding roller; 3. Annular tube; 31. Connecting slide bar; 32. Feeding pipe; 33. Feeding hose; 4. Fixing plate; 41. Electric heating plate; 5. Film roller; 6. Extrusion roller; 61. Connecting gear; 62. First motor; 7. Rewinding roller; 71. Second motor; 8. Fixing box; 9. Connecting rotating rod; 91. Rotating cylinder; 92. Rotary extrusion groove; 10. Connecting rod; 11. Extrusion beads; 12. Fixing slide bar. Detailed Implementation

[0023] This utility model provides a double-sided laminating machine for plastic woven bags.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A double-sided laminating machine for plastic woven bags includes an outer shell 1. Inside the outer shell 1, from left to right, a feeding roller 2, a film roller 5, an extrusion roller 6, and a winding roller 7 are rotatably connected. A roll of woven bag is fitted on the outer surface of the feeding roller 2, and two rolls of film are fitted on the two film rollers 5. The feeding roller 2 is positioned between the two film rollers 5 to laminate both sides of the woven bag. A second motor 71 is fixedly connected to the outer shell 1 to drive the winding roller 7 to rotate. By starting the second motor 71, the winding roller 7 is driven to rotate to wind up the laminated woven bag.

[0025] Please refer to it again. Figure 1 , Figure 2 and Figure 4 An annular tube 3 is slidably connected inside the outer casing 1. Multiple nozzles are fixedly connected to the inner top and bottom walls of the annular tube 3. The annular tube 3 is ring-shaped. Connecting slide rods 31 and conveying pipes 32 are fixedly connected to both ends of the annular tube 3, respectively. The annular tube 3 is slidably connected inside the outer casing 1 through the connecting slide rods 31 and conveying pipes 32. The connecting slide rods 31 and conveying pipes 32 are slidably connected to the two sides of the outer casing 1, respectively. The other end of the conveying pipe 32 is fixedly connected to a feeding hose 33. The feeding hose 33 is a flexible hose. The adhesive is conveyed to the inside of the conveying pipe 32 through the feeding hose 33 and finally sprayed out through the nozzles on the annular tube 3. A collection box is placed inside the outer casing 1. The collection box is located directly below the annular tube 3 and collects excess adhesive through the collection box.

[0026] Please refer to it again. Figure 1 and Figure 2 A first motor 62 is fixedly connected to the outer shell 1 to drive the extrusion roller 6 to rotate. The output shaft of the first motor 62 is fixedly connected to the shaft of one extrusion roller 6. A connecting gear 61 is fixedly connected to the shaft of each of the two extrusion rollers 6. The two connecting gears 61 mesh with each other. By starting the first motor 62, one extrusion roller 6 is driven to rotate. Under the action of the two connecting gears 61, the two extrusion rollers 6 are driven to rotate together in opposite directions. The two extrusion rollers 6 are used to extrude the woven bag after film coating.

[0027] Please refer to it again. Figure 1 , Figure 3 and Figure 5A fixed box 8 is fixedly connected to the outer shell 1. The fixed box 8 is equipped with a drive mechanism that drives the connecting slide rod 31 to slide back and forth. The drive mechanism includes a connecting rod 9 that rotates inside the fixed box 8. A rotating cylinder 91 is fixedly connected to the outer surface of the connecting rod 9. A rotary extrusion groove 92 is opened on the outer surface of the rotating cylinder 91. One end of the connecting slide rod 31 extends into the interior of the fixed box 8. A connecting rod 10 is fixedly connected to one end of the connecting slide rod 31. An extrusion bead 11 is fixedly connected to one end of the connecting rod 10. The extrusion bead 11 slides inside the rotary extrusion groove 92. By driving the connecting rod 9 to rotate, the extrusion bead 11 on the outer surface of the rotating cylinder 91 drives the connecting slide rod 31 to slide back and forth horizontally under the connection of the connecting rod 10. The fixed slide rod 12 is provided to support the connecting rod 10 to slide stably inside the fixed box 8.

[0028] Please refer to it again. Figure 1 , Figure 3 and Figure 5 The fixed box 8 is fixedly connected to the fixed slide rod 12. The connecting rod 10 is slidably connected to the outer surface of the fixed slide rod 12. One end of the connecting rotating rod 9 extends to the outside of the fixed box 8. A sprocket is fixedly connected to one end of the connecting rotating rod 9 and the rotating shaft end of the extrusion roller 6. The two sprockets are connected by a transmission chain. When the extrusion roller 6 rotates, the connecting rotating rod 9 is driven to rotate together by the action of the sprocket and the transmission chain.

[0029] Please refer to it again. Figure 1 and Figure 4 A heating mechanism is provided between the film roller 5 and the annular tube 3. The heating mechanism includes two fixed plates 4 fixed inside the outer shell 1. Electric heating plates 41 are fixedly connected to the side of the two fixed plates 4 that are close to each other. The two electric heating plates 41 heat both sides of the woven bag after the glue is sprayed, thereby increasing the temperature of the glue and making the adhesion between the woven bag and the film better.

[0030] Working principle: Adhesive material is fed into the feeding hose 33, and then transported to the annular pipe 32 via the conveying pipe 32. Finally, it is sprayed out through two sets of nozzles in the annular pipe 3 to spray adhesive onto both sides of the woven bag passing through the annular pipe 3. The electric heating plate 41 is activated to heat both sides of the woven bag after adhesive spraying. Then, the film on the two film rollers 5 adheres to both sides of the woven bag. Finally, the first motor 62 is activated, and the two connecting gears 61 drive the two extrusion rollers 6 to rotate, thus coating the bag. The woven bag is then squeezed to cover it with film. The second motor 71 is started to drive the take-up roller 7 to rotate, and the take-up roller 7 takes up the film-coated woven bag. During the rotation of the extrusion roller 6, the connecting rod 9 is driven to rotate through the set sprocket and transmission chain. The extrusion beads 11 on the outer surface of the rotating cylinder 91 are driven by the connecting rod 10 to drive the connecting slide rod 31 to slide back and forth horizontally, so that the two sets of nozzles can evenly spray the adhesive on both sides of the woven bag and reduce the spray dead corners.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-sided film laminating compounder for plastic woven bags, comprising an outer housing (1), characterized in that: The outer shell (1) is rotatably connected from left to right to the feeding roller (2), film roller (5), extrusion roller (6) and take-up roller (7). The outer shell (1) is slidably connected to the inside of the outer shell (1). Multiple nozzles are fixedly connected to the inner top wall and inner bottom wall of the annular tube (3). The two ends of the annular tube (3) are respectively fixedly connected to the connecting slide rod (31) and the conveying pipe (32). The annular tube (3) is slidably connected to the inside of the outer shell (1) through the connecting slide rod (31) and the conveying pipe (32). The other end of the conveying pipe (32) is fixedly connected to the feeding hose (33). The outer shell (1) is fixedly connected to the second motor (71) that drives the take-up roller (7) to rotate. A fixed box (8) is fixedly connected to the outer shell (1). The fixed box (8) is provided with a drive mechanism for reciprocating sliding of the drive connecting slide rod (31). A heating mechanism is provided between the film roller (5) and the annular tube (3).

2. The double face laminating compound machine for plastic woven bag according to claim 1, characterized in that: The outer shell (1) is fixedly connected to a first motor (62) that drives the extrusion roller (6) to rotate. The output shaft of the first motor (62) is fixedly connected to the shaft of one extrusion roller (6). Both shafts of the two extrusion rollers (6) are fixedly connected to a connecting gear (61), and the two connecting gears (61) mesh with each other.

3. The double face laminating compound machine for plastic woven bag according to claim 1, characterized in that: The driving mechanism includes a connecting rod (9) that rotates inside the fixed box (8). A rotating cylinder (91) is fixedly connected to the outer surface of the connecting rod (9). A rotary extrusion groove (92) is opened on the outer surface of the rotating cylinder (91). One end of the connecting slide rod (31) extends into the interior of the fixed box (8). A connecting rod (10) is fixedly connected to one end of the connecting slide rod (31). An extrusion bead (11) is fixedly connected to one end of the connecting rod (10). The extrusion bead (11) slides inside the rotary extrusion groove (92).

4. The double face laminating compound machine for plastic woven bag according to claim 3, characterized in that: The fixed box (8) is fixedly connected to a fixed slide rod (12), and the connecting rod (10) is slidably connected to the outer surface of the fixed slide rod (12).

5. The double face laminating machine for plastic woven bag according to claim 4, characterized in that: One end of the connecting rod (9) extends to the outside of the fixed box (8). A sprocket is fixedly connected to one end of the connecting rod (9) and the shaft end of the extrusion roller (6). The two sprockets are connected by a transmission chain.

6. The double face laminating machine for plastic woven bag according to claim 1, characterized in that: The heating mechanism includes two fixing plates (4) fixed inside the outer shell (1), and an electric heating plate (41) is fixedly connected to one side of each fixing plate (4) that is close to the other.

7. The double face laminating machine for plastic woven bag according to claim 1, characterized in that: The receiving box is placed inside the outer shell (1) and is located directly below the annular tube (3).

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