A composite film bag production line

Abstract

The application discloses a composite film bag production line, and particularly relates to the technical field of composite film bag production equipment, and comprises a machine body, the outer surface of the machine body is provided with a flattening device, the flattening device comprises two threaded rods, the outer surface of the threaded ring is rotationally connected with a circular ring, one side of the outer surface of the circular ring is fixedly connected with a rectangular block, the outer surface of the rectangular block is fixedly connected with a cylindrical rod at the end far from the circular ring, the outer surface of the cylindrical rod is rotationally connected with a circular roller, the outer surface of the machine body is provided with a rectangular groove on the left and right sides, and the outer surface of the rectangular block is slidable on the inner wall of the rectangular groove, the circular roller is arranged, the composite film bag can pass between the two circular rollers after being cut by the cutting head and entering the surface between the winding rollers, the surface of the composite film bag is kept flat by the two circular rollers, and wrinkles are avoided as much as possible when the composite film bag is wound on the outer surface of the winding roller.

Description

Technical Field

[0001] This invention relates to the field of composite film bag production equipment technology, and in particular to a composite film bag production line. Background Technology

[0002] Composite membranes are separation membranes consisting of a microporous membrane or ultrafiltration membrane as the support layer, and a dense homogeneous membrane with a thickness of only 0.1 to 0.25 μm as the barrier layer. Composite membrane bags are a type of packaging bag currently on the market and have been widely used in medical, food and decorative fields. The production of composite membrane bags requires multiple processes such as printing, lamination and slitting.

[0003] The inventor discovered that during the production of composite film bags, the pattern is first printed onto the surface film using printing equipment. Then, the printed surface film is laminated with films of other materials using laminating equipment. After lamination, the film bags are cured in a curing chamber to accelerate the curing of the adhesive. Finally, the laminated film bags are slit by a slitting machine, and then cut into segments by a cutting machine to complete the packaging. During the slitting process of the composite film bags, when the cut composite film bags are rolled onto the surface of the winding roller, there may be a deviation, which may cause wrinkles on the surface of the rolled composite film bags, affecting the subsequent cutting and packaging effects. Summary of the Invention

[0004] This invention addresses the problem that in the production of composite film bags, the process involves first printing a pattern onto a surface film using printing equipment, then laminating the printed surface film with films of other materials using laminating equipment, followed by curing in a curing chamber to accelerate adhesive curing, and finally slitting the laminated film bag using a slitting machine, and then cutting the composite film bag into segments using a cutting machine for final packaging. However, during the slitting process, when the cut composite film bag is wound onto the surface of the winding roller, it may shift, causing wrinkles on the surface of the wound composite film bag, which affects subsequent cutting and packaging effects. Therefore, this invention proposes a composite film bag production line.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a composite film bag production line, comprising a machine body, a first motor disposed at one end of the outer surface of the machine body, a feeding roller disposed at the output end of the first motor, a plurality of positioning rollers rotatably disposed on the inner wall of the machine body, a cutting head disposed on the inner wall of the machine body near the positioning rollers, two second motors disposed on the outer surface of the machine body away from the first motor, a winding roller disposed at the output end of the two second motors, a leveling device disposed on the outer surface of the machine body, the leveling device comprising two threaded rods, the two threaded rods being rotatably connected to the left and right sides of the inner wall of the machine body respectively, two threaded rings being threadedly connected to the outer surface of the threaded rods, a circular ring being rotatably connected to the outer surface of the threaded rings, a rectangular block being fixedly connected to one side of the outer surface of the circular ring, a cylindrical rod being fixedly connected to the outer surface of the rectangular block away from the circular ring, a circular roller being rotatably connected to the outer surface of the cylindrical rod, rectangular grooves being formed on the left and right sides of the outer surface of the machine body, and the outer surface of the rectangular block sliding on the inner wall of the rectangular groove.

[0006] The effect achieved by the above components is as follows: by setting up the circular rollers, when cutting the composite film bag, the threaded rod can be rotated to control the movement of the two threaded rings on the outer surface of the threaded rod to adjust the height position of the two circular rollers. Controlling the threaded rod and rotating the threaded rings individually can move the threaded rings on the outer surface of the threaded rod to adjust the distance between the two circular rollers. After the composite film bag is cut by the cutting head, it can pass between the two circular rollers on the surface of the winding roller. The two circular rollers keep the surface of the composite film bag flat and avoid wrinkles as much as possible when the composite film bag is wound on the outer surface of the winding roller.

[0007] Preferably, a plurality of protrusions are fixedly connected to the top end of the outer surface of the threaded ring, and the protrusions are circumferentially distributed on the top end of the outer surface of the threaded ring.

[0008] The effect achieved by the above components is that pushing the threaded ring at the protrusion makes it easier to control the rotation of the threaded ring and prevents it from slipping.

[0009] Preferably, a groove is provided on the outer surface of the machine body near the threaded rod, and a positioning block is slidably inserted into the inner wall of the groove, and the top of the outer surface of the threaded rod rotates on the inner wall of the positioning block.

[0010] The effect achieved by the above components is that inserting the positioning block into the groove allows the positioning block to be located on the outer surface of the threaded rod. When the threaded rod is rotated, the top of the outer surface of the threaded rod will rotate on the inner wall of the threaded ring. The positioning block can fix the angle between the threaded rod and the machine body to avoid tilting of the threaded rod as much as possible.

[0011] Preferably, a positioning rod is fixedly connected to the outer surface of the rectangular block near the cylindrical rod, and one side of the outer surface of the positioning rod slides on the inner wall of the machine body.

[0012] The effect achieved by the above components is that when the rectangular block slides on the inner wall of the rectangular groove, one side of the outer surface of the positioning rod will slide on the inner wall of the machine body to fix the angle between the rectangular block and the machine body and increase the stability of the rectangular block when it moves.

[0013] Preferably, a rectangular rod is fixedly connected to the bottom of the inner wall of the machine body, and a groove block is fixedly connected to the outer surface of the cylindrical rod away from the rectangular block. The inner wall of the groove block slides on the outer surface of the rectangular rod.

[0014] The effect achieved by the above components is that the groove block slides on the outer surface of the rectangular rod during the up-and-down movement of the roller, fixing the angle of the left and right ends of the roller as much as possible to avoid the roller's angle from deviating.

[0015] Preferably, the outer surfaces of the two rollers are provided with raised strips, which are wound around the outer surfaces of the two rollers in opposite directions.

[0016] The effect achieved by the above components is that when the composite film bag passes between the two rollers, the convex strips can pull the surface of the composite film bag in both left and right directions, further preventing the surface of the composite film bag from folding.

[0017] Preferably, a cleaning device is provided on the outer surface of the machine body near the leveling device. The cleaning device includes a U-shaped rod, a groove plate is fixedly connected to the outer surface of the U-shaped rod, a sliding rod is slidably connected to the inner wall of the groove plate, a plurality of positioning holes are opened on the outer surface of the sliding rod, a plurality of round holes are opened on the outer surface of the groove plate, bolts are threaded to the inner wall of the round holes, a connecting rod is fixedly connected to the bottom end of the outer surface of the sliding rod, a brush roller is rotatably provided on the top end of the outer surface of the connecting rod, and a first slot and a second slot are opened on the top end of the outer surface of the threaded rod and the top end of the outer surface of the rectangular rod.

[0018] The effect achieved by the above components is as follows: by inserting the two ends of the outer surface of the U-shaped rod into the interior of the first and second slots, the U-shaped rod can be positioned at the top of the outer surface of the threaded rod and the rectangular rod. Pushing the sliding rod can control the sliding rod to slide on the inner wall of the slot plate to adjust the height position of the sliding rod and the brush roller. Then, rotating the bolt through the round hole and threadedly connecting it to the inner wall of the positioning hole fixes the height position of the sliding rod. After passing through the two round rollers, the composite film bag will pass over the surface of the brush roller. The brush roller cleans the outer surface of the composite film bag and avoids the adhesion of debris to the surface of the composite film bag as much as possible.

[0019] Preferably, a plurality of elastic ropes are fixedly connected to one side of the outer surface of the groove plate, and one end of the outer surface of the elastic ropes is fixedly connected to one end of the outer surface of the bolt.

[0020] The effect achieved by the above components is that by setting an elastic rope, the bolt can always be fixed on one side of the outer surface of the slot plate, preventing the bolt from falling off and being lost when adjusting the height position of the sliding rod.

[0021] Preferably, a collection device is provided on the inner wall of the machine body near the cleaning device. The collection device includes a U-shaped block, the outer surface of which has a slot, and a slot box is fixedly connected to one side of the outer surface of the U-shaped block.

[0022] The effect achieved by the above components is as follows: the slot box is placed on the inner wall of the machine body below the brush roller, and the slot on the outer surface of the U-shaped block is fixed to the outer surface of the rectangular rod facing the slot box. The slot box can collect the debris and dust cleaned by the brush roller.

[0023] Preferably, a handle is fixedly connected to one side of the outer surface of the slot box, and the cross-sectional shape of the handle is U-shaped.

[0024] The effect achieved by the above components is that holding the outer surface of the U-shaped handle makes it easier to pull the slot box, causing the U-shaped block to detach from one side of the outer surface of the rectangular rod, allowing the slot box to be removed for cleaning and replacement.

[0025] In summary, the beneficial effects of the present invention are as follows:

[0026] By setting up a leveling device, during the production of composite film bags, the pattern is first printed onto the surface film using printing equipment. Then, the printed surface film is laminated with films of other materials using a laminating device. After lamination, the film is cured in a curing chamber to accelerate adhesive curing. The cured composite film bag is then rolled onto a feeding roller on the outer surface of the machine body, allowing it to be cut by a cutting head. Subsequently, rotating the threaded rod controls the movement of two threaded rings on the outer surface of the threaded rod, adjusting the height of the two rollers. Controlling the threaded rod and individually rotating the threaded ring at the protrusion allows the threaded ring to move on the outer surface of the threaded rod, adjusting the distance between the two rollers. Inserting the positioning block into the groove positions it on the outer surface of the threaded rod. When the threaded rod is rotated, the top of the outer surface of the threaded rod rotates on the inner wall of the threaded ring. The positioning block fixes the angle between the threaded rod and the machine body, minimizing tilting. When the rectangular block slides on the inner wall of the rectangular groove, one side of the positioning rod slides on the inner wall of the machine body, fixing the angle between the rectangular block and the machine body and increasing the stability of the rectangular block's movement. Then, the U-shaped... The two ends of the outer surface of the rod are inserted into the first and second slots, allowing the U-shaped rod to be positioned at the top of the outer surface of the threaded rod and the rectangular rod. Then, the sliding rod is pushed to control its sliding motion on the inner wall of the slot plate, adjusting the height of the sliding rod and the brush roller. Next, the bolt fixed by the elastic rope on one side of the outer surface of the slot plate is rotated, passing through the round hole and threadedly connected to the inner wall of the positioning hole to fix the height of the sliding rod. Then, the slot box is placed on the inner wall of the machine body, below the brush roller. The slot on the outer surface of the U-shaped block is then fixed by locking it onto the outer surface of the rectangular rod facing the slot box. The cut composite film bags are passed between the two round rollers and wound onto the two take-up rollers. Then, the first motor and two second motors on the outer surface of the machine body drive the feeding roller and the take-up roller to rotate. The composite film bags are cut by the cutting head. After being cut by the cutting head, the composite film bags enter the surface of the take-up rollers and can pass between the two round rollers. The two round rollers keep the surface of the composite film bags flat and minimize wrinkles when the composite film bags are wound on the outer surface of the take-up rollers. After cutting, the composite film bags are cut into segments by the cutting machine to complete the packaging. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0028] Figure 2 This is a three-dimensional structural diagram of the body of the present invention;

[0029] Figure 3 This is the present invention. Figure 2 A magnified three-dimensional structural diagram of part A;

[0030] Figure 4 This is the present invention. Figure 2 A magnified three-dimensional structural diagram of part B;

[0031] Figure 5 This is a three-dimensional structural diagram of the circular roller of the present invention;

[0032] Figure 6 This is a three-dimensional structural schematic diagram of the cylindrical rod of the present invention;

[0033] Figure 7 This is a three-dimensional structural schematic diagram of the brush roller of the present invention;

[0034] Figure 8 This is a three-dimensional structural diagram of the U-shaped rod of the present invention;

[0035] Figure 9 This is a three-dimensional structural diagram of the sliding rod of the present invention;

[0036] Figure 10 This is a three-dimensional structural diagram of the slot box of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Machine body; 2. Leveling device; 3. Cleaning device; 4. Collecting device; 5. First motor; 6. Feeding roller; 7. Positioning roller; 8. Cutting head; 9. Second motor; 10. Rewinding roller; 21. Threaded rod; 22. Threaded ring; 23. Circular ring; 24. Protrusion; 25. Groove; 26. Positioning block; 27. Rectangular block; 28. Cylindrical rod; 29. ​​Circular roller; 210. Raised strip; 211. Positioning rod; 212. Groove block; 213. Rectangular rod; 214. Rectangular groove; 31. First slot; 32. Second slot; 33. U-shaped rod; 34. Groove plate; 35. Sliding rod; 36. Connecting rod; 37. Brush roller; 38. Positioning hole; 39. Circular hole; 310. Bolt; 311. Elastic rope; 41. U-shaped block; 42. Slot; 43. Groove box; 44. Handle. Detailed Implementation

[0039] Reference Figure 1-6As shown, this embodiment discloses a composite film bag production line, including a machine body 1. A first motor 5 is provided at one end of the outer surface of the machine body 1, and a feeding roller 6 is provided at the output end of the first motor 5. Several positioning rollers 7 are rotatably provided on the inner wall of the machine body 1. A cutting head 8 is provided on the inner wall of the machine body 1 near the positioning rollers 7. Two second motors 9 are provided on the outer surface of the machine body 1 away from the first motor 5. A winding roller 10 is provided at the output end of the two second motors 9. A leveling device 2 is provided on the outer surface of the machine body 1. The leveling device 2 includes two threaded rods 21. The two threaded rods 21 are rotatably connected to the left and right sides of the inner wall of the machine body 1, respectively. Two threaded rings 22 are threadedly connected to the outer surface of the threaded rods 21. A circular ring 23 is rotatably connected to the outer surface of the threaded rings 22. A rectangular block 27 is fixedly connected to one side of the outer surface of the circular ring 23. The outer surface of the rectangular block 27 is away from the circular ring. One end of 23 is fixedly connected to a cylindrical rod 28, and a circular roller 29 is rotatably connected to the outer surface of the cylindrical rod 28. Rectangular grooves 214 are opened on the left and right sides of the outer surface of the machine body 1. The outer surface of the rectangular block 27 slides on the inner wall of the rectangular groove 214. By setting the circular roller 29, when cutting the composite film bag, the threaded rod 21 can be rotated to control the movement of the two threaded rings 22 on the outer surface of the threaded rod 21 to adjust the height position of the two circular rollers 29. Controlling the threaded rod 21 and rotating the threaded ring 22 separately can move the threaded ring 22 on the outer surface of the threaded rod 21 to adjust the distance between the two circular rollers 29. After the composite film bag is cut by the cutting head 8, it can pass between the two circular rollers 29 on the surface of the winding roller 10. The two circular rollers 29 keep the surface of the composite film bag flat and avoid wrinkles when the composite film bag is wound on the outer surface of the winding roller 10 as much as possible.

[0040] Reference Figure 1-6 As shown in the figure, this embodiment discloses that a plurality of protrusions 24 are fixedly connected to the top of the outer surface of the threaded ring 22. The protrusions 24 are circumferentially distributed on the top of the outer surface of the threaded ring 22. Pushing the threaded ring 22 at the protrusions 24 can more conveniently control the rotation of the threaded ring 22 and prevent it from slipping. A groove 25 is provided on the outer surface of the machine body 1 near the threaded rod 21. A positioning block 26 is slidably inserted into the inner wall of the groove 25. The top of the outer surface of the threaded rod 21 rotates on the inner wall of the positioning block 26. Inserting the positioning block 26 into the groove 25 can make the positioning block 26 located on the outer surface of the threaded rod 21. When the threaded rod 21 is rotated, the top of the outer surface of the threaded rod 21 will rotate on the inner wall of the threaded ring 22. The positioning block 26 can fix the angle between the threaded rod 21 and the machine body 1 to avoid the threaded rod 21 from tilting as much as possible.

[0041] Reference Figure 1-6As shown, this embodiment discloses a positioning rod 211 fixedly connected to the outer surface of the rectangular block 27 near the cylindrical rod 28. One side of the outer surface of the positioning rod 211 slides on one side of the inner wall of the body 1. When the rectangular block 27 slides on the inner wall of the rectangular groove 214, one side of the outer surface of the positioning rod 211 slides on one side of the inner wall of the body 1 to fix the angle between the rectangular block 27 and the body 1, increasing the stability of the rectangular block 27 during movement. A rectangular rod 213 is fixedly connected to the bottom of the inner wall of the body 1. A groove block 212 is fixedly connected to the outer surface of the cylindrical rod 28 away from the rectangular block 27. The inner wall of block 212 slides on the outer surface of rectangular rod 213. During the up-and-down movement of roller 29, the groove block 212 slides on the outer surface of rectangular rod 213 to fix the angle of the left and right ends of roller 29 as much as possible to avoid the angle of roller 29 from deflecting. The outer surfaces of the two rollers 29 are provided with protrusions 210. The protrusions 210 are wrapped around the outer surfaces of the two rollers 29 in opposite directions. When the composite film bag passes between the two rollers 29, the protrusions 210 can pull the surface of the composite film bag in both left and right directions to further prevent the surface of the composite film bag from folding.

[0042] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 , Figure 8 as well as Figure 9 As shown, this embodiment discloses a cleaning device 3 disposed on the outer surface of the machine body 1 near the leveling device 2. The cleaning device 3 includes a U-shaped rod 33, a groove plate 34 fixedly connected to the outer surface of the U-shaped rod 33, a sliding rod 35 slidably connected to the inner wall of the groove plate 34, a plurality of positioning holes 38 opened on the outer surface of the sliding rod 35, a plurality of round holes 39 opened on the outer surface of the groove plate 34, bolts 310 threadedly connected to the inner wall of the round holes 39, a connecting rod 36 fixedly connected to the bottom end of the outer surface of the sliding rod 35, a brush roller 37 rotatably disposed at the top end of the outer surface of the connecting rod 36, and a first slot 31 opened at the top end of the outer surface of the threaded rod 21 and the top end of the outer surface of the rectangular rod 213. The U-shaped rod 33 is inserted into the first slot 31 and the second slot 32 by inserting both ends of its outer surface into the first slot 31 and the second slot 32. The U-shaped rod 33 can be positioned at the top of the outer surface of the threaded rod 21 and the rectangular rod 213. Pushing the sliding rod 35 can control the sliding rod 35 to slide on the inner wall of the slot plate 34 to adjust the height position of the sliding rod 35 and the brush roller 37. Then, the bolt 310 is rotated to pass through the round hole 39 and is threaded to the inner wall of the positioning hole 38 to fix the height position of the sliding rod 35. After passing through the two round rollers 29, the composite film bag will pass through the surface of the brush roller 37. The brush roller 37 cleans the outer surface of the composite film bag to avoid the adhesion of debris to the surface of the composite film bag as much as possible.

[0043] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 , Figure 8 as well as Figure 9 As shown, this embodiment discloses that a plurality of elastic ropes 311 are fixedly connected to one side of the outer surface of the groove plate 34. One end of the outer surface of the elastic rope 311 is fixedly connected to one end of the outer surface of the bolt 310. By setting the elastic rope 311, the bolt 310 can be fixed to one side of the outer surface of the groove plate 34 to prevent the bolt 310 from falling off and being lost.

[0044] Reference Figure 1 and Figure 2 as well as Figure 10 As shown in the figure, this embodiment discloses that a collection device 4 is provided on the inner wall of the machine body 1 near the cleaning device 3. The collection device 4 includes a U-shaped block 41. A slot 42 is opened on the outer surface of the U-shaped block 41. A slot box 43 is fixedly connected to one side of the outer surface of the U-shaped block 41. The slot box 43 is placed on the inner wall of the machine body 1 below the brush roller 37. The slot 42 on the outer surface of the U-shaped block 41 is then fixed to the outer surface of the rectangular rod 213 facing the slot box 43. The slot box 43 can collect the debris and dust cleaned by the brush roller 37. A handle 44 is fixedly connected to one side of the outer surface of the slot box 43. The cross-sectional shape of the handle 44 is U-shaped. Holding the outer surface of the U-shaped handle 44 makes it easier to pull the slot box 43 out for cleaning and replacement.

[0045] The working principle is as follows: When producing composite film bags, the pattern is first printed on the surface film using printing equipment. Then, the printed surface film is laminated with films of other materials using laminating equipment. After lamination, the film is cured in a curing chamber to accelerate the curing of the adhesive. The cured composite film bag is then rolled onto the feeding roller 6 on the outer surface of the machine body 1, allowing the composite film bag to be cut by the cutting head 8. Subsequently, rotating the threaded rod 21 controls the movement of the two threaded rings 22 on the outer surface of the threaded rod 21 to adjust the height of the two rollers 29. Controlling the threaded rod 21 and rotating the threaded ring 22 individually at the protrusion 24 allows the threaded ring 22 to move on the outer surface of the threaded rod 21. Adjusting the distance between the two rollers 29 allows the positioning block 26 to be inserted into the groove 25, positioning the positioning block 26 on the outer surface of the threaded rod 21. When the threaded rod 21 is rotated, the top of the outer surface of the threaded rod 21 will rotate on the inner wall of the threaded ring 22. The positioning block 26 can fix the angle between the threaded rod 21 and the machine body 1, minimizing the tilting of the threaded rod 21. When the rectangular block 27 slides on the inner wall of the rectangular groove 214, one side of the outer surface of the positioning rod 211 will slide on one side of the inner wall of the machine body 1, fixing the angle between the rectangular block 27 and the machine body 1 and increasing the stability of the rectangular block 27 during movement. Then, the outer surfaces of the U-shaped rod 33 are... Inserting the end into the first slot 31 and the second slot 32 allows the U-shaped rod 33 to be positioned at the top of the outer surface of the threaded rod 21 and the rectangular rod 213. Then, pushing the sliding rod 35 controls its sliding motion on the inner wall of the slot plate 34, adjusting the height of the sliding rod 35 and the brush roller 37. Next, rotating one side of the outer surface of the slot plate 34, the bolt 310, fixed by the elastic rope 311, passes through the round hole 39 and is threadedly connected to the inner wall of the positioning hole 38, fixing the height of the sliding rod 35. Then, placing the slot box 43 on the inner wall of the machine body 1, below the brush roller 37, and then engaging the slot 42 on the outer surface of the U-shaped block 41 with the outer surface of the rectangular rod 213 facing the slot box 4. Position 3 is fixed, and the cut composite film bag is passed between two round rollers 29 and wound onto two take-up rollers 10. Then, the first motor 5 and two second motors 9 on the outer surface of the machine body 1 drive the feeding roller 6 and the take-up roller 10 to rotate. The composite film bag is cut by the cutting head 8. After the composite film bag is cut by the cutting head 8, it enters the surface of the take-up roller 10 and can pass between the two round rollers 29. The two round rollers 29 keep the surface of the composite film bag flat and avoid wrinkles as much as possible when the composite film bag is wound on the outer surface of the take-up roller 10. After the cutting is completed, the composite film bag is cut into sections by the cutting machine and finally packaged.

[0046] In this invention, the terms used in the specification have their common meanings in the specific context in which they are used. Specific terms are used to explain the specific content of this specification and to facilitate reading by those skilled in the art. For ease of explanation, certain terms are specifically marked, for example, using italics and / or quotation marks. Such special marking does not affect the meaning or scope of the terms; that is, whether certain terms are specifically marked or not does not affect their meaning or scope. It should be understood that the same components can be described in different ways. Therefore, any terms discussed herein can be replaced with alternative terms or synonyms, and no special meaning is set forth or discussed herein. The one or more terms exemplified do not exclude other synonyms. The illustrative terms in this specification are for illustrative purposes only and do not limit the meaning or scope of the invention. Similarly, the invention is not limited to the embodiments described in the specification.

Claims

1. A composite film bag production line, comprising a machine body (1), characterized in that: A first motor (5) is provided at one end of the outer surface of the machine body (1), and a feeding roller (6) is provided at the output end of the first motor (5). Several positioning rollers (7) are rotatably provided on the inner wall of the machine body (1). A cutting head (8) is provided on the inner wall of the machine body (1) near the positioning rollers (7). Two second motors (9) are provided on the outer surface of the machine body (1) away from the first motor (5). A winding roller (10) is provided at the output end of the two second motors (9). A leveling device (2) is provided on the outer surface of the machine body (1). The leveling device (2) includes two screws. Two threaded rods (21) are rotatably connected to the left and right sides of the inner wall of the machine body (1), respectively. Two threaded rings (22) are threadedly connected to the outer surface of the threaded rods (21). A circular ring (23) is rotatably connected to the outer surface of the threaded rings (22). A rectangular block (27) is fixedly connected to one side of the outer surface of the circular ring (23). A cylindrical rod (28) is fixedly connected to the outer end of the rectangular block (27) away from the circular ring (23). A circular roller (29) is rotatably connected to the outer surface of the cylindrical rod (28). Rectangular rods are opened on the left and right sides of the outer surface of the machine body (1). The rectangular block (27) slides on the inner wall of the rectangular groove (214); a number of protrusions (24) are fixedly connected to the top of the outer surface of the threaded ring (22), and the protrusions (24) are circumferentially distributed on the top of the outer surface of the threaded ring (22); a groove (25) is provided on the outer surface of the machine body (1) near the threaded rod (21), and a positioning block (26) is slidably inserted into the inner wall of the groove (25), and the top of the outer surface of the threaded rod (21) rotates on the inner wall of the positioning block (26); the outer surface of the rectangular block (27) is close to the cylindrical rod (214). A positioning rod (211) is fixedly connected to one side of the machine body (1), and the outer surface of the positioning rod (211) slides on the inner wall of the machine body (1); a rectangular rod (213) is fixedly connected to the bottom of the inner wall of the machine body (1), and a groove block (212) is fixedly connected to the end of the outer surface of the cylindrical rod (28) away from the rectangular block (27), and the inner wall of the groove block (212) slides on the outer surface of the rectangular rod (213); the outer surfaces of the two rollers (29) are provided with convex strips (210), and the convex strips (210) are wound around the outer surfaces of the two rollers (29) in opposite directions;A cleaning device (3) is provided on the outer surface of the body (1) near the leveling device (2). The cleaning device (3) includes a U-shaped rod (33). A groove plate (34) is fixedly connected to the outer surface of the U-shaped rod (33). A sliding rod (35) is slidably connected to the inner wall of the groove plate (34). Several positioning holes (38) are opened on the outer surface of the sliding rod (35). Several round holes (39) are opened on the outer surface of the groove plate (34). Bolts (310) are threadedly connected to the inner wall of the round holes (39). A connecting rod (36) is fixedly connected to the bottom end of the outer surface of the sliding rod (35). A brush roller (37) is rotatably provided on the top end of the outer surface of the connecting rod (36). A first slot (31) and a second slot (32) are opened on the top end of the outer surface of the threaded rod (21) and the top end of the outer surface of the rectangular rod (213).

2. The composite film bag production line according to claim 1, characterized in that: A plurality of elastic ropes (311) are fixedly connected to one side of the outer surface of the groove plate (34), and one end of the outer surface of the elastic rope (311) is fixedly connected to one end of the outer surface of the bolt (310).

3. The composite film bag production line according to claim 2, characterized in that: A collection device (4) is provided on the inner wall of the body (1) near the cleaning device (3). The collection device (4) includes a U-shaped block (41). A slot (42) is provided on the outer surface of the U-shaped block (41). A slot box (43) is fixedly connected to one side of the outer surface of the U-shaped block (41).

4. A composite film bag production line according to claim 3, characterized in that: A handle (44) is fixedly connected to one side of the outer surface of the slot box (43), and the cross-sectional shape of the handle (44) is U-shaped.

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