Edge cutting device for anti-wrinkle processing of plastic film

By combining the design of unwinding roller, conveying roller, rewinding roller and circular cutter, and adjusting the tension of the upper and lower adjusting rollers, the problem of wrinkles in the edge trimming process of plastic film is solved, the edge trimming quality and efficiency are improved, and it can adapt to film materials of different thicknesses.

CN224172154UActive Publication Date: 2026-04-28QINGDAO HUIMENG PLASTICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO HUIMENG PLASTICS CO LTD
Filing Date
2025-06-11
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing trimming devices are prone to producing wrinkles when trimming plastic film, which reduces trimming quality and efficiency, and wrinkles are also prone to occur when the plastic film is stacked after collection.

Method used

It adopts a combination design of unwinding roller, conveying roller, winding roller, rotating shaft and circular cutter. It prevents wrinkles by tension and trims the edges during the conveying process. The tension is adjusted by upper and lower adjusting rollers to prevent wrinkles during the winding process.

Benefits of technology

It improves trimming efficiency and wrinkle prevention, ensures trimming quality, and can adapt to plastic films of different thicknesses, preventing wrinkles during the winding process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an edge cutting device for anti-wrinkle processing of a plastic film, and belongs to the technical field of edge cutting of the plastic film, an edge cutting device body comprises a workbench, the surface of the workbench is fixedly connected with a supporting plate, the surface of the supporting plate is slidably connected with an upper adjusting roller and a lower adjusting roller, and the surface of the supporting plate is rotatably connected with an unwinding roller; according to the edge cutting device for anti-wrinkle processing of the plastic film, through the arrangement of the unwinding roller, the conveying roller, the winding roller, the rotating shaft and the round cutter, wrinkles can be prevented through tensile force in the conveying process of the plastic film, meanwhile, edges are cut through the round cutter in the conveying process, the edge cutting efficiency is improved, the anti-wrinkle effect is improved, and then the edge cutting quality is improved; and through the arrangement of the upper adjusting roller and the lower adjusting roller, the edges of the plastic films with different thicknesses can be conveniently cut, the winding tension force of the plastic films after edge cutting can be adjusted, and then the plastic films are prevented from being wrinkled in the winding process.
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Description

Technical Field

[0001] This utility model relates to the field of plastic film trimming technology, and more specifically, to a trimming device for anti-wrinkle processing of plastic film. Background Technology

[0002] Plastic film is a thin film material made primarily of plastic. Due to its advantages such as good flexibility, transparency, water resistance, moisture resistance, chemical corrosion resistance, and low cost, it has been widely used in many fields.

[0003] Currently, plastic film requires edge trimming devices during production. However, commonly used edge trimming devices are not effective at preventing wrinkles, which reduces the quality of edge trimming. For example, the anti-wrinkle cutting device for plastic film processing disclosed in CN 216155130 U includes a cutting table, a swinging pressure arm hinged to one side of the top of the cutting table, a control screw on the inner side of the swinging pressure arm, a servo motor fixedly connected to one end of the control screw and threaded to the outer side of the control screw, a gas spring at the bottom of the control seat, a base at the bottom of the gas spring, and a flat pressing roller movably connected to the inner side of the bottom of the base.

[0004] As can be seen from the above-disclosed scheme, the anti-wrinkle cutting device lays the plastic film by flattening and pressing rollers, and then uses negative pressure to make the plastic film adhere tightly to the surface of the cutting table. During the laying process and the negative pressure adsorption process, the plastic film may also generate wrinkles. Moreover, the plastic film laying process is relatively time-consuming, which reduces the cutting efficiency and quality. Furthermore, the stacked plastic film after collection will generate wrinkles, which will affect the production quality of the plastic film. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an edge trimming device for anti-wrinkle processing of plastic film. This edge trimming device for anti-wrinkle processing of plastic film, through the arrangement of unwinding roller, conveying roller, winding roller, rotating shaft and circular cutter, can prevent wrinkles by tension during the conveying of plastic film, and simultaneously trim the edges by the circular cutter during the conveying process. This not only improves the trimming efficiency, but also improves the anti-wrinkle effect, thereby improving the trimming quality. Furthermore, the arrangement of upper and lower adjusting rollers not only facilitates trimming of plastic film of different thicknesses, but also allows adjustment of the tension of the plastic film after trimming during winding, thereby preventing wrinkles from forming on the plastic film during the winding process.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A trimming device for anti-wrinkle processing of plastic film includes a trimming device body, which includes a worktable. A support plate is fixedly connected to the surface of the worktable. An upper adjusting roller and a lower adjusting roller are slidably connected to the surface of the support plate. An unwinding roller, a conveying roller, a winding roller, a collecting roller, and a trimming assembly are rotatably connected to the surface of the support plate. The trimming assembly includes a rotating shaft, one end of which is rotatably connected to the surface of the support plate. A transmission gear is provided at one end of the rotating shaft. This trimming device for anti-wrinkle processing of plastic film, through the unwinding roller, conveying roller, winding roller, rotating shaft, and circular cutter, can prevent wrinkles by tension during the conveying of plastic film. At the same time, it trims the edges by the circular cutter during the conveying process, which not only improves the trimming efficiency but also improves the anti-wrinkle effect, thereby improving the trimming quality. Furthermore, the upper and lower adjusting rollers not only facilitate trimming of plastic films of different thicknesses but also allow adjustment of the tension of the plastic film during winding after trimming, thereby preventing wrinkles from forming on the plastic film during winding.

[0008] Furthermore, two circular cutters are slidably connected to the surface of the rotating shaft. An adjusting sleeve is fixedly sleeved at the middle position of the circular cutter. The surface of the adjusting sleeve has a screw hole, and a manual screw is threaded to the inner wall of the screw hole. The circular cutter can rotate actively under the drive of the rotating shaft, thereby avoiding burrs at the cut edge and improving the cut edge quality.

[0009] Furthermore, a connecting shaft is fixedly sleeved at the center of both the upper and lower adjusting rollers. One end of the connecting shaft is rotatably connected to an adjusting rod via a bearing. A limit plate is fixedly sleeved on the surface of the adjusting rod. The upper and lower adjusting rollers can rotate freely, and their height positions can be adjusted via the adjusting rod.

[0010] Furthermore, a nut is threaded onto the surface of the adjusting rod, and a pressing plate is fixedly sleeved on one end of the nut. The surface of the pressing plate is movably connected to the surface of the support plate. The adjusting position of the adjusting rod can be quickly fixed by the clamping force of the pressing plate and the limiting plate.

[0011] Furthermore, the surface of the rotating shaft has a flat surface, which is movably connected to one end of the manual screw. The surface of the flat surface is provided with scale lines, which allow the user to quickly adjust the spacing between the two circular cutters.

[0012] Furthermore, one end of the adjusting sleeve has a sleeve hole, and a protrusion is fixedly connected to the inner wall of the sleeve hole. The surface of the protrusion is slidably connected to the surface of the plane. The protrusion and the plane can prevent slippage and rotation between the adjusting sleeve and the rotating shaft.

[0013] Furthermore, the surface of the support plate has an adjustment groove, and the inner wall of the adjustment groove is slidably connected to the surface of the adjustment rod.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution, through the setting of unwinding roller, conveying roller, rewinding roller, rotating shaft and circular cutter, can prevent wrinkles by tension during the conveying of plastic film, and at the same time, it can trim the edges by circular cutter during the conveying process, which not only improves the trimming efficiency, but also improves the anti-wrinkle effect, thereby improving the trimming quality.

[0016] (2) The upper and lower adjusting rollers of this solution not only facilitate the trimming of plastic films of different thicknesses, but also adjust the tension of the plastic film after trimming, thereby preventing wrinkles from forming during the winding process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the trimming component structure of this utility model;

[0019] Figure 3 for Figure 2 A schematic diagram of the connection structure between the circular cutter and the adjusting sleeve;

[0020] Figure 4 This is a schematic diagram of the upper adjusting roller structure of this utility model;

[0021] Figure 5 for Figure 4 A cross-sectional view of the installation structure of the upper adjusting roller and adjusting rod.

[0022] Explanation of the labels in the diagram:

[0023] 1. Trimming device body; 11. Workbench; 12. Support plate; 13. Adjusting groove; 14. Unwinding roller; 15. Conveying roller; 16. Rewinding roller; 17. Collecting roller; 2. Trimming assembly; 21. Rotating shaft; 22. Plane; 23. Scale line; 24. Circular cutter; 25. Adjusting sleeve; 26. Sleeve hole; 27. Protrusion; 28. Screw hole; 29. ​​Manual screw; 3. Upper adjusting roller; 31. Connecting shaft; 32. Bearing; 33. Adjusting rod; 34. Limiting plate; 35. Extrusion plate; 36. Nut; 4. Lower adjusting roller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0025] Please see Figure 1-5 A trimming device for anti-wrinkle processing of plastic film includes a trimming device body 1, which includes a worktable 11. A support plate 12 is fixedly connected to the surface of the worktable 11. An upper adjusting roller 3 and a lower adjusting roller 4 are slidably connected to the surface of the support plate 12. A connecting shaft 31 is fixedly sleeved at the center of each of the upper and lower adjusting rollers 3 and 4. An adjusting rod 33 is rotatably connected to one end of the connecting shaft 31 through a bearing 32. A limit plate 34 is fixedly sleeved on the surface of the adjusting rod 33. The upper and lower adjusting rollers 3 and 4 can rotate freely, and their height positions can be adjusted by the adjusting rod 33. An unwinding roller 14, a conveying roller 15, a winding roller 16, a collecting roller 17, and a trimming assembly 2 are rotatably connected to the surface of the support plate 12. The unwinding roller 14 is used to fix the rolled plastic film and unwind it, and also has a tensioning function. The conveying roller 15 is equipped with a drive gear and a drive motor. The machine is used to convey plastic film. Its composition and working principle are well known to those skilled in the art. The winding roller 16 is equipped with a winding motor to wind up the trimmed plastic film. The collecting roller 17 is equipped with a rotary motor to collect the trimmed waste, which improves the convenience of waste collection. The trimming assembly 2 includes a rotating shaft 21. Two circular cutters 24 are slidably connected to the surface of the rotating shaft 21. An adjusting sleeve 25 is fixedly sleeved at the middle position of the circular cutter 24. The surface of the adjusting sleeve 25 has a screw hole 28. A manual screw 29 is threadedly connected to the inner wall of the screw hole 28. The circular cutter 24 can rotate actively under the drive of the rotating shaft 21, which can avoid burrs at the trimmed part and improve the trimming quality. One end of the rotating shaft 21 is rotatably connected to the surface of the support plate 12. A transmission gear is provided at one end of the rotating shaft 21. The transmission gear meshes with the gear of the conveying roller 15 and can drive it to rotate actively.

[0026] The surface of the adjusting rod 33 is threaded with a nut 36, and one end of the nut 36 is fixedly sleeved with a pressing plate 35. The surface of the pressing plate 35 is movably connected to the surface of the support plate 12. Through the clamping force of the pressing plate 35 and the limiting plate 34, the adjustment position of the adjusting rod 33 can be quickly fixed. The surface of the rotating shaft 21 has a flat surface 22, and the surface of the flat surface 22 is movably connected to one end of the manual screw 29. The surface of the flat surface 22 is provided with scale lines 23, which facilitates the user to quickly adjust the spacing between the two circular cutters 24.

[0027] One end of the adjusting sleeve 25 has a sleeve hole 26, and a protrusion 27 is fixedly connected to the inner wall of the sleeve hole 26. The surface of the protrusion 27 is slidably connected to the surface of the plane 22. The protrusion 27 and the plane 22 can prevent the adjusting sleeve 25 from slipping and rotating with the rotating shaft 21. The surface of the support plate 12 has an adjusting groove 13, and the inner wall of the adjusting groove 13 is slidably connected to the surface of the adjusting rod 33.

[0028] When using this anti-wrinkle processing edge trimming device for plastic film, the rolled plastic film is first installed on the unwinding roller 14. Then, one end of the rolled film is pulled out and passed between the upper adjusting roller 3 and the circular cutter 24, and simultaneously passed through the conveying roller 15 and fixed to the surface of the take-up roller 16. At this time, the plastic film is in a taut state and will not produce wrinkles. Then, the conveying roller 15 is turned on to feed the plastic film, so that the plastic film is conveyed. At the same time, the rotating shaft 21 rotates to trim the plastic film during the conveying process. The long strip of waste generated by trimming is wrapped around and fixed on the collecting roller 17. Then, the plastic film is trimmed during the unwinding and conveying process, which not only improves the trimming efficiency, but also improves the anti-wrinkle effect, thereby improving the trimming quality. At the same time, the trimming waste is collected simultaneously, and the trimmed plastic film is wound up simultaneously, which can prevent the plastic film from producing wrinkles during the winding process.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A trimming device for anti-wrinkle processing of plastic film, comprising a trimming device body (1), wherein the trimming device body (1) includes a worktable (11), and a support plate (12) is fixedly connected to the surface of the worktable (11), characterized in that: The surface of the support plate (12) is slidably connected to an upper adjusting roller (3) and a lower adjusting roller (4). The surface of the support plate (12) is rotatably connected to an unwinding roller (14), a conveying roller (15), a winding roller (16), a collecting roller (17), and an edge trimming assembly (2). The edge trimming assembly (2) includes a rotating shaft (21). One end of the rotating shaft (21) is rotatably connected to the surface of the support plate (12). One end of the rotating shaft (21) is provided with a transmission gear.

2. The edge trimming device for anti-wrinkle processing of plastic film according to claim 1, characterized in that: Two circular cutters (24) are slidably connected to the surface of the rotating shaft (21). An adjusting sleeve (25) is fixedly sleeved at the middle position of the circular cutter (24). A screw hole (28) is opened on the surface of the adjusting sleeve (25). A manual screw (29) is threadedly connected to the inner wall of the screw hole (28).

3. The edge trimming device for anti-wrinkle processing of plastic film according to claim 1, characterized in that: The upper adjusting roller (3) and the lower adjusting roller (4) are both fixedly sleeved with a connecting shaft (31). One end of the connecting shaft (31) is rotatably connected to an adjusting rod (33) through a bearing (32). A limit plate (34) is fixedly sleeved on the surface of the adjusting rod (33).

4. The edge trimming device for anti-wrinkle processing of plastic film according to claim 3, characterized in that: The adjusting rod (33) is threaded with a nut (36), and one end of the nut (36) is fixedly sleeved with a pressing plate (35). The surface of the pressing plate (35) is movably connected to the surface of the support plate (12).

5. The edge trimming device for anti-wrinkle processing of plastic film according to claim 2, characterized in that: The surface of the rotating shaft (21) has a plane (22), the surface of the plane (22) is movably connected to one end of the manual screw (29), and the surface of the plane (22) is provided with scale lines (23).

6. The edge trimming device for anti-wrinkle processing of plastic film according to claim 2, characterized in that: One end of the adjusting sleeve (25) has a sleeve hole (26), and a protrusion (27) is fixedly connected to the inner wall of the sleeve hole (26). The surface of the protrusion (27) is slidably connected to the surface of the plane (22).

7. The edge trimming device for anti-wrinkle processing of plastic film according to claim 3, characterized in that: The surface of the support plate (12) has an adjustment groove (13), and the inner wall of the adjustment groove (13) is slidably connected to the surface of the adjustment rod (33).

Citation Information

Patent Citations

  • Crease-resistant edge cutting device for plastic film processing

    CN216155130U