A waste edge recovery device of a plastic film high-speed slitting machine

By designing clamping and anti-wrinkle components, the plastic film waste edge recycling device achieves rapid blade replacement and improved cutting accuracy, solving the problems of equipment efficiency and finished product quality caused by cutter wear and unstable film tension.

CN224476297UActive Publication Date: 2026-07-10
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-08-14
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing plastic film waste edge recycling devices require time to disassemble and replace worn-out cutters after long-term use, which affects the continuous operation efficiency of the equipment. Furthermore, unstable film tension leads to insufficient cutting accuracy and wrinkles in the finished film.

Method used

The bidirectional screw and knob structure of the clamping assembly enables quick blade replacement. Combined with the calibration roller and strong tension spring in the anti-wrinkle assembly, it ensures a tight fit on the film surface, calibrates the cutting edge in real time, and avoids film loosening or uneven stretching.

Benefits of technology

It improves the continuous operating efficiency of the equipment, ensures cutting accuracy and the flatness of the finished film, and reduces material waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of plastic film high-speed slitting machine scrap edge recovery device, belong to plastic film technical field, including platform, the platform top wall is also fixedly connected with the vertical plate of symmetrical distribution, the vertical plate outer wall is fixedly connected with the guide rod A of symmetrical distribution, the guide rod A outer wall slidingly connected with the sliding frame of symmetrical distribution, further include: clamping assembly, the clamping assembly includes the two-way screw B of rotationally connected in the sliding frame outer wall, the two-way screw B outer wall is screw-connected with the clamping block of symmetrical distribution. In the utility model, the two-way screw B of clamping assembly, clamping block and other structures set, just need to rotate knob to realize the clamping and loosening of blade, without complex disassembly steps, shorten the blade replacement time, reduce equipment downtime maintenance length, guarantee the continuous operation of production line, especially applicable to efficient operation demand under high-speed slitting scene.
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Description

Technical Field

[0001] This utility model relates to the field of plastic film technology, and more specifically, to a waste edge recycling device for a high-speed plastic film slitting machine. Background Technology

[0002] Plastic film is a thin, flexible sheet material made of polymers such as polyethylene and polypropylene, widely used in packaging, agriculture, industry, and many other fields. During the production and processing of plastic film, excess waste edges are often generated due to production processes or dimensional requirements. If these waste edges are not recycled, they not only waste resources but may also pollute the environment due to indiscriminate disposal. Therefore, recycling plastic film waste edges has significant economic and environmental implications.

[0003] A search revealed Chinese patent application number CN202323456056.1, which discloses a plastic film waste recycling device, including a platform. The top surface of the platform is provided with two vertical plates, which are arranged in parallel front to back. A roller and a bidirectional threaded rod are inserted between the two vertical plates. Both ends of the bidirectional threaded rod are fitted with cutters. The top surface of the platform has a through-hole, and a sliding rod is inserted inside the through-hole. Both ends of the sliding rod are fitted with movable blocks. The two movable blocks are respectively connected to two cutters. A scale is engraved at the edge of the through-hole and on the top surface of the platform.

[0004] Although the aforementioned patent uses the output of a third motor to drive a bidirectional threaded rod to rotate, and the rotation of the bidirectional threaded rod causes two cutters on it to move relative to each other along the horizontal direction of the bidirectional threaded rod, and the movement of the two cutters respectively causes the two movable blocks to move horizontally, increasing the stability of the movement of the two cutters, and by adjusting the position of the two cutters and cooperating with the scale, it can cut plastic film edge waste of different widths according to actual needs, increasing the practicality of the device, the following shortcomings still exist in use: 1. After long-term use, the cutters wear out, requiring a lot of time to disassemble and replace, affecting the continuous operation efficiency of the equipment; 2. When the plastic film itself is loose or unevenly stretched, positional deviation is prone to occur during cutting, affecting cutting accuracy, and unstable film tension may also cause wrinkles in the finished film after winding.

[0005] Therefore, there is an urgent need for a waste edge recycling device for high-speed plastic film slitting machines to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a waste edge recycling device for a high-speed plastic film slitting machine to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] A waste edge recycling device for a high-speed plastic film slitting machine includes a platform. Symmetrically distributed vertical plates are fixedly connected to the top wall of the platform. Symmetrically distributed guide rods A are fixedly connected to the outer walls of the vertical plates. Symmetrically distributed sliding frames are slidably connected to the outer walls of the guide rods A. The device also includes:

[0009] A clamping assembly includes a bidirectional screw B rotatably connected to the outer wall of a sliding frame. Symmetrically distributed clamping blocks are threaded onto the outer wall of the bidirectional screw B. A knob is fixedly connected to the outer wall of the bidirectional screw B. A limiting block is fixedly connected to the outer wall of the clamping block on the right side. A limiting hole is formed on the outer wall of the clamping block on the left side, and the limiting hole is slidably connected to the limiting block. A tool holder is arranged between the symmetrical clamping blocks. A blade is fixedly connected to the top wall of the tool holder, and the tool holder is slidably connected to the limiting block. Symmetrically distributed guide rods B are slidably connected to the outer wall of the clamping blocks, and the guide rods B are fixedly connected to the sliding frame.

[0010] Anti-wrinkle components are installed on the outer wall of the sliding frame.

[0011] As a preferred technical solution of this application, the anti-wrinkle assembly includes an extension rod symmetrically fixedly connected to the outer wall of the sliding frame, a fixing block fixedly connected to the outer wall of the extension rod, symmetrically distributed sliding blocks slidably connected to the outer wall of the extension rod, a calibration roller rotatably connected to the outer wall of the sliding block, a strong tension spring sleeved on the outer wall of the extension rod, and the strong tension spring being fixedly connected to the fixing block, with the end of the strong tension spring away from the fixing block being fixedly connected to the sliding block.

[0012] As a preferred technical solution of this application, the top wall of the platform is fixedly connected with symmetrically distributed vertical plates, and the top wall of the vertical plates is detachably connected with mounting rings. The outer wall of the mounting ring on the left side is rotatably connected with an unwinding roller, and the outer wall of the mounting ring on the right side is rotatably connected with a winding roller. The outer wall of the vertical plate on the right side is fixedly connected with a side plate A, and the outer wall of the side plate A is fixedly connected with a drive motor A, and the output end of the drive motor A is fixedly connected to the winding roller.

[0013] As a preferred technical solution of this application, a drive motor C is fixedly connected to the outer wall of the vertical plate, and a bidirectional screw A is fixedly connected to the output end of the drive motor C. The bidirectional screw A is rotatably connected to the vertical plate, and the outer wall of the bidirectional screw A is threadedly connected to the outer wall of the sliding frame.

[0014] As a preferred technical solution of this application, the top wall of the platform is fixedly connected with symmetrically distributed fixed plates, and the outer wall of the fixed plate located on the rear side is fixedly connected with a side plate B. The outer wall of the side plate B is fixedly connected with a drive motor B, and the output end of the drive motor B is detachably connected with a waste edge recycling roller, and the waste edge recycling roller is rotatably connected to the fixed plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the scheme of this application:

[0017] 1. With the bidirectional screw B and clamping block structure of the clamping component, the blade can be clamped and released simply by turning the knob, without complicated disassembly steps. This shortens the blade replacement time, reduces equipment downtime for maintenance, and ensures continuous operation of the production line. It is especially suitable for high-efficiency operation requirements in high-speed slitting scenarios. It solves the problem in existing technologies where long-term use of the cutter leads to wear and tear, requiring a lot of time to disassemble and replace, which affects the continuous operation efficiency of the equipment.

[0018] 2. The calibration roller in the anti-wrinkle assembly, under the elastic force of a strong tension spring, can always be tightly attached to the surface of the plastic film. The film is calibrated in real time by pressing from above and below, ensuring that the cut edges are neat and consistent. At the same time, it avoids wrinkles caused by unstable tension during the winding process, improves the flatness and quality of the finished film, reduces material waste caused by insufficient cutting accuracy, and solves the problem in the prior art that when the plastic film itself is loose or unevenly stretched, the positional deviation during cutting is easy to occur, affecting the cutting accuracy, and the unstable film tension may also cause wrinkles in the finished film after winding. Attached Figure Description

[0019] Figure 1 One of the overall structural schematic diagrams of the waste edge recycling device for a high-speed plastic film slitting machine provided in this application;

[0020] Figure 2 The second schematic diagram of the overall structure of the waste edge recycling device for the high-speed plastic film slitting machine provided in this application;

[0021] Figure 3 A schematic diagram of the sliding frame portion of the waste edge recycling device for the high-speed plastic film slitting machine provided in this application;

[0022] Figure 4 A schematic diagram of the extension rod portion of the waste edge recycling device for the high-speed plastic film slitting machine provided in this application;

[0023] Figure 5 An exploded view of the blade holder portion of the waste edge recycling device for a high-speed plastic film slitting machine provided in this application.

[0024] The image shows:

[0025] 1. Platform; 2. Vertical plate; 3. Mounting ring; 4. Unwinding roller; 5. Side plate A; 6. Drive motor A; 7. Rewinding roller; 8. Side plate B; 9. Drive motor B; 10. Waste edge recovery roller; 11. Vertical plate; 12. Drive motor C; 13. Bidirectional screw A; 14. Guide rod A; 15. Sliding frame; 16. Bidirectional screw B; 17. Guide rod B; 18. Clamping block; 19. Limiting hole; 20. Limiting block; 21. Knife handle; 22. Blade; 23. Extension rod; 24. Fixing block; 25. Sliding block; 26. Strong tension spring; 27. Calibration roller; 28. Knob; 29. ​​Fixing plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0027] like Figure 1-5 As shown, the waste edge recycling device for a high-speed plastic film slitting machine proposed in this embodiment includes a platform 1. The top wall of the platform 1 is fixedly connected to symmetrically distributed vertical plates 11. The outer walls of the vertical plates 11 are fixedly connected to symmetrically distributed guide rods A14. The outer walls of the guide rods A14 are slidably connected to symmetrically distributed sliding frames 15. The device also includes:

[0028] The clamping assembly includes a bidirectional screw B16 rotatably connected to the outer wall of the sliding frame 15. Symmetrically distributed clamping blocks 18 are threaded onto the outer wall of the bidirectional screw B16. A knob 28 is fixedly connected to the outer wall of the bidirectional screw B16. A limit block 20 is fixedly connected to the outer wall of the right-side clamping block 18, and a limit hole 19 is formed on the outer wall of the left-side clamping block 18, with the limit hole 19 slidably connected to the limit block 20. A tool holder 21 is disposed between the symmetrical clamping blocks 18, and a blade 22 is fixedly connected to the top wall of the tool holder 21. The tool holder 21 and the limit block 20 are connected to each other. The position block 20 is slidably connected, and the outer wall of the clamping block 18 is slidably connected with symmetrically distributed guide rods B17. The guide rods B17 are fixedly connected to the sliding frame 15. Rotating the knob 28 drives the bidirectional screw B16 to rotate. The bidirectional screw B16 drives the two clamping blocks 18 to move relative to each other along the guide rods B17. At the same time, the limiting block 20 slides in the limiting hole 19 to ensure that the clamping block 18 moves smoothly and clamps the tool holder 21, thus completing the installation of the blade 22. Conversely, rotating the knob 28 in the opposite direction can release the clamping block 18 and quickly replace the blade 22.

[0029] Anti-wrinkle component is provided on the outer wall of sliding frame 15.

[0030] like Figure 4As shown, in a preferred embodiment, based on the above method, the anti-wrinkle assembly further includes an extension rod 23 symmetrically fixedly connected to the outer wall of the sliding frame 15. A fixing block 24 is fixedly connected to the outer wall of the extension rod 23. A symmetrically distributed sliding block 25 is slidably connected to the outer wall of the extension rod 23. A calibration roller 27 is rotatably connected to the outer wall of the sliding block 25. A strong tension spring 26 is sleeved on the outer wall of the extension rod 23, and the strong tension spring 26 is fixedly connected to the fixing block 24. The end of the strong tension spring 26 away from the fixing block 24 is connected to the sliding block 25. The moving block 25 is fixedly connected. The plastic film is released from the unwinding roller 4. When it passes the sliding frame 15, the calibration roller 27 in the anti-wrinkle assembly, under the action of the strong tension spring 26, is pressed against the film along the extension rod 23 through the sliding block 25, pressing and guiding the upper and lower surfaces of the film to avoid the film from loosening or uneven stretching. The blade 22 cuts the edge of the film that has passed through. The cut finished film is wound up by the winding roller 7 under the drive of the drive motor A6, while the waste edge is wound up by the waste edge recovery roller 10 under the drive of the drive motor B9.

[0031] like Figure 1-2 As shown, in a preferred embodiment, based on the above method, the platform 1 is further provided with symmetrically distributed upright plates 2 fixedly connected to the top wall. The top wall of the upright plates 2 is detachably connected with mounting rings 3. An unwinding roller 4 is rotatably connected to the outer wall of the mounting ring 3 on the left side, and a winding roller 7 is rotatably connected to the outer wall of the mounting ring 3 on the right side. A side plate A5 is fixedly connected to the outer wall of the upright plate 2 on the right side, and a drive motor A6 is fixedly connected to the outer wall of the side plate A5. The output end of the drive motor A6 is fixedly connected to the winding roller 7. The unwinding roller 4 is used to prevent the film from rolling. The cut finished film is wound up by the winding roller 7 under the drive of the drive motor A6.

[0032] like Figure 1 As shown, in a preferred embodiment, based on the above method, a drive motor C12 is fixedly connected to the outer wall of the vertical plate 11. A bidirectional screw A13 is fixedly connected to the output end of the drive motor C12, and the bidirectional screw A13 is rotatably connected to the vertical plate 11. The outer wall of the bidirectional screw A13 is threadedly connected to the outer wall of the sliding frame 15. When the drive motor C12 is started, its output end drives the bidirectional screw A13 to rotate. Since the bidirectional screw A13 is threadedly connected to the sliding frame 15, and the sliding frame 15 is sleeved on the guide rod A14, the sliding frame 15 will slide horizontally along the guide rod A14 to adjust the distance between the two sliding frames 15 to accommodate plastic films of different widths.

[0033] like Figure 2As shown, in a preferred embodiment, based on the above method, the platform 1 is further provided with symmetrically distributed fixed plates 29 fixedly connected to the top wall, a side plate B8 fixedly connected to the outer wall of the rear fixed plate 29, a drive motor B9 fixedly connected to the outer wall of the side plate B8, a waste edge recovery roller 10 detachably connected to the output end of the drive motor B9, and the waste edge recovery roller 10 is rotatably connected to the fixed plate 29. The waste edge is wound up by the waste edge recovery roller 10 under the drive of the drive motor B9. The waste edge recovery roller 10 can be disassembled for easy unloading.

[0034] Specifically, when using the waste edge recycling device of this high-speed plastic film slitting machine: the drive motor C12 starts, and its output end drives the bidirectional screw A13 to rotate. Since the bidirectional screw A13 is threadedly connected to the sliding frame 15, and the sliding frame 15 is sleeved on the guide rod A14, the sliding frame 15 will slide horizontally along the guide rod A14 to adjust the distance between the two sliding frames 15 to accommodate plastic films of different widths; turning the knob 28 drives the bidirectional screw B16 to rotate, and the bidirectional screw B16 drives the two clamping blocks 18 to move relative to each other along the guide rod B17. At the same time, the limiting block 20 slides in the limiting hole 19 to ensure that the clamping blocks 18 move smoothly. To install the blade 22, the handle 21 is clamped. Conversely, rotating the knob 28 in the opposite direction releases the clamping block 18, allowing for quick replacement of the blade 22. The plastic film is released from the unwinding roller 4 and passes the sliding frame 15. Under the action of the strong tension spring 26, the calibration roller 27 in the anti-wrinkle assembly adheres to the film along the extension rod 23 via the sliding block 25, pressing and guiding the upper and lower surfaces of the film to prevent the film from loosening or stretching unevenly. The blade 22 cuts the edges of the film it passes through. The cut finished film is then wound up by the winding roller 7 driven by the drive motor A6, while the waste edges are wound up by the waste edge recovery roller 10 driven by the drive motor B9.

[0035] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A waste edge recycling device for a high-speed plastic film slitting machine, comprising a platform (1), characterized in that, The platform (1) is also fixedly connected to the top wall with symmetrically distributed vertical plates (11), and the outer wall of the vertical plates (11) is fixedly connected with symmetrically distributed guide rods A (14). The outer wall of the guide rods A (14) is slidably connected with symmetrically distributed sliding frames (15), and also includes: The clamping assembly includes a bidirectional screw B (16) rotatably connected to the outer wall of the sliding frame (15). The outer wall of the bidirectional screw B (16) is threaded with symmetrically distributed clamping blocks (18). The outer wall of the bidirectional screw B (16) is fixedly connected with a knob (28). The outer wall of the clamping block (18) on the right side is fixedly connected with a limit block (20). The outer wall of the clamping block (18) on the left side is provided with a limit hole (19), and the limit hole (19) is slidably connected to the limit block (20). A knife handle (21) is provided between the symmetrical clamping blocks (18). A blade (22) is fixedly connected to the top wall of the knife handle (21). The knife handle (21) is slidably connected to the limit block (20). The outer wall of the clamping block (18) is slidably connected with symmetrically distributed guide rods B (17), and the guide rods B (17) are fixedly connected to the sliding frame (15). Anti-wrinkle component is provided on the outer wall of the sliding frame (15).

2. The waste edge recycling device for a high-speed plastic film slitting machine according to claim 1, characterized in that, The anti-wrinkle assembly includes an extension rod (23) symmetrically fixedly connected to the outer wall of the sliding frame (15). A fixing block (24) is fixedly connected to the outer wall of the extension rod (23). A symmetrically distributed sliding block (25) is slidably connected to the outer wall of the extension rod (23). A calibration roller (27) is rotatably connected to the outer wall of the sliding block (25). A strong tension spring (26) is sleeved on the outer wall of the extension rod (23). The strong tension spring (26) is fixedly connected to the fixing block (24). The end of the strong tension spring (26) away from the fixing block (24) is fixedly connected to the sliding block (25).

3. The waste edge recycling device for a high-speed plastic film slitting machine according to claim 1, characterized in that, The platform (1) has symmetrically distributed vertical plates (2) fixedly connected to its top wall. The top wall of the vertical plate (2) is detachably connected to an installation ring (3). The outer wall of the installation ring (3) on the left side is rotatably connected to an unwinding roller (4). The outer wall of the installation ring (3) on the right side is rotatably connected to a winding roller (7). The outer wall of the vertical plate (2) on the right side is fixedly connected to a side plate A (5). The outer wall of the side plate A (5) is fixedly connected to a drive motor A (6), and the output end of the drive motor A (6) is fixedly connected to the winding roller (7).

4. The waste edge recycling device for a high-speed plastic film slitting machine according to claim 1, characterized in that, A drive motor C (12) is fixedly connected to the outer wall of the vertical plate (11). A bidirectional screw A (13) is fixedly connected to the output end of the drive motor C (12). The bidirectional screw A (13) is rotatably connected to the vertical plate (11). The outer wall of the bidirectional screw A (13) is threadedly connected to the outer wall of the sliding frame (15).

5. A waste edge recycling device for a high-speed plastic film slitting machine according to claim 1, characterized in that, The platform (1) has symmetrically distributed fixed plates (29) fixedly connected to its top wall. A side plate B (8) is fixedly connected to the outer wall of the fixed plate (29) located on the rear side. A drive motor B (9) is fixedly connected to the outer wall of the side plate B (8). A waste edge recycling roller (10) is detachably connected to the output end of the drive motor B (9), and the waste edge recycling roller (10) is rotatably connected to the fixed plate (29).

Citation Information

Patent Citations

  • Plastic film waste edge recovery device

    CN221891967U