Cutting tool for protective film
By setting up a second motor and pulley system to drive the threaded rod and threaded block, the cutting width of the protective film can be automatically adjusted, which solves the problem that the existing tooling needs to be manually adjusted, and improves cutting efficiency and versatility.
Patent Information
- Application Number
- CN202520170139.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing protective film cutting fixtures have limited functionality, require manual adjustment of the cutting width, reduce processing speed, and increase the workload of workers.
The second motor, second drive pulley, second transmission belt, first threaded rod, first threaded block, second threaded rod, and second threaded block drive the cutting blade and limiting plate to move, thereby achieving automatic adjustment of the protective film cutting width.
It improves the versatility and efficiency of cutting fixtures, facilitates the separation and winding of protective film after cutting, and reduces the burden of manual operation.
Smart Images

Figure CN223971823U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film cutting equipment technology, specifically a cutting tool for protective film. Background Technology
[0002] Currently, protective films are widely used in various industries. To achieve certain specific functions, protective films are generally cut into different widths for use. However, current tooling for cutting protective films is relatively limited in function, lacking the ability to clamp and cut to a specified width. Therefore, during cutting, the tooling clamps the protective film, requiring workers to manually adjust the cutting width. This not only reduces processing speed but also increases the workload for workers, thus diminishing the tooling's practicality. Utility Model Content
[0003] The purpose of this utility model is to provide a cutting fixture for protective film, which can drive the cutting blade and the limiting plate to move through a second motor, a second driving pulley, a second transmission belt, a second driven pulley, a first threaded rod, a first threaded block, a second threaded rod, and a second threaded block, so as to facilitate the adjustment of the cutting width of the protective film, have strong versatility and high efficiency, and at the same time facilitate the separation and winding of the cut protective film.
[0004] To achieve the above objectives, a cutting fixture for protective film is provided, including a base plate, with first vertical plates symmetrically arranged on the upper end of the base plate. A first motor is fixedly connected to one side of one of the first vertical plates, and a first driving pulley is fixedly connected to the output shaft of the first motor. A first driven pulley is rotatably connected to one side of one of the first vertical plates. A first transmission belt is provided on the outer surface of the first driving pulley and the first driven pulley. A tension roller is fixedly connected to one side of both the first driving pulley and the first driven pulley.
[0005] The upper end of the base plate is symmetrically provided with second vertical plates, and a guide roller is rotatably connected between the two second vertical plates. A second motor is fixedly connected to one side of the second vertical plate, and a second driving pulley is fixedly connected to the output shaft of the second motor. A second driven pulley is rotatably connected to one side of the base plate. A second transmission belt is provided on the outer surface of the second driving pulley and the second driven pulley. An installation rod is fixedly connected between the two second vertical plates. A first threaded rod is fixedly connected to one side of the second driving pulley. A first threaded block is threadedly connected to the outer surface of the first threaded rod. An electric push rod is fixedly connected to the lower end of the first threaded block. A cutting blade is fixedly connected to the lower end of the electric push rod. A second threaded rod is fixedly connected to one side of the second driven pulley. A second threaded block is threadedly connected to the outer surface of the second threaded rod. A limiting plate is fixedly connected to the upper end of the second threaded block. The upper end of the second threaded block is symmetrically provided with third vertical plates, and a third motor is fixedly connected to one side of one of the third vertical plates. A take-up roller is fixedly connected to the output shaft of the third motor.
[0006] According to the protective film cutting fixture, a protective film unwinding assembly is fixedly connected to the upper end of the base plate.
[0007] According to the protective film cutting fixture, a first bearing is fixedly connected to one side of the first threaded rod, and the first bearing is fixed to the inner side wall of the mounting rod.
[0008] According to the protective film cutting fixture, the upper end of the first threaded block is slidably connected to the inner top wall of the mounting rod.
[0009] According to the protective film cutting fixture, a movable groove is provided on the upper surface of the base plate, the second threaded rod and the second threaded block are both located in the movable groove, a second bearing is fixedly connected to one side of the second threaded rod, and the second bearing is fixed to the side wall of the movable groove.
[0010] According to the protective film cutting fixture, the lower end of the second threaded block is slidably connected to the bottom wall of the moving groove.
[0011] According to the aforementioned cutting fixture for protective film, the limiting plate is slidably connected to the outer surface of the take-up roller.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This protective film cutting fixture, by setting a first vertical plate, a first motor, a first driving pulley, a first transmission belt, a first driven pulley, and a tension roller, conveys the protective film while ensuring tension, thereby improving the cutting quality of the protective film.
[0014] This protective film cutting fixture, by setting a second motor, a second driving pulley, a second transmission belt, a second driven pulley, a first threaded rod, a first threaded block, a second threaded rod, and a second threaded block, drives the cutting blade and the limiting plate to move, which facilitates the adjustment of the cutting width of the protective film, has strong versatility and high efficiency, and also facilitates the separation and winding of the cut protective film.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is a perspective view of a cutting fixture for a protective film according to the present invention;
[0018] Figure 2 This is a cross-sectional view of the mounting rod of a cutting fixture for protective film according to this utility model;
[0019] Figure 3 For the present utility model Figure 1 An enlarged schematic diagram of the structure at point A in the middle;
[0020] Figure 4 This is a schematic diagram of the structure of the second threaded rod and the second threaded block of a cutting fixture for protective film according to this utility model.
[0021] In the diagram: 1. Base plate; 2. Protective film unwinding assembly; 3. First vertical plate; 4. First motor; 5. First drive pulley; 6. First driven pulley; 7. First transmission belt; 8. Tension roller; 9. Second vertical plate; 10. Guide roller; 11. Second motor; 12. Second drive pulley; 13. Second transmission belt; 14. Second driven pulley; 15. Mounting rod; 16. First threaded rod; 17. First threaded block; 18. First bearing; 19. Electric push rod; 20. Cutting knife; 21. Second threaded rod; 22. Second threaded block; 23. Second bearing; 24. Moving groove; 25. Limiting plate; 26. Third vertical plate; 27. Third motor; 28. Take-up roller. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4 This utility model provides a technical solution: a cutting fixture for protective film, including a base plate 1, with first vertical plates 3 symmetrically arranged on the upper end of the base plate 1, a first motor 4 fixedly connected to one side of one of the first vertical plates 3, a first drive pulley 5 fixedly connected to the output shaft of the first motor 4, a first driven pulley 6 rotatably connected to one side of one of the first vertical plates 3, a first transmission belt 7 arranged on the outer surface of the first drive pulley 5 and the first driven pulley 6, and a tension roller 8 fixedly connected to one side of each of the first drive pulley 5 and the first driven pulley 6. By setting the first vertical plate 3, the first motor 4, the first drive pulley 5, the first transmission belt 7, the first driven pulley 6, and the tension roller 8, the protective film is conveyed while ensuring tension, thereby improving the cutting quality of the protective film.
[0024] A second vertical plate 9 is symmetrically arranged on the upper end of the base plate 1. A guide roller 10 is rotatably connected between the two second vertical plates 9. A second motor 11 is fixedly connected to one side of the second vertical plate 9. A second driving pulley 12 is fixedly connected to the output shaft of the second motor 11. A second driven pulley 14 is rotatably connected to one side of the base plate 1. A second transmission belt 13 is provided on the outer surface of the second driving pulley 12 and the second driven pulley 14. An installation rod 15 is fixedly connected between the two second vertical plates 9. A first threaded rod 16 is fixedly connected to one side of the second driving pulley 12. A first threaded block 17 is threadedly connected to the outer surface of the first threaded rod 16. An electric push rod 19 is fixedly connected to the lower end of the first threaded block 17. A cutting blade 20 is fixedly connected to the lower end of the electric push rod 19. The second driven pulley... A second threaded rod 21 is fixedly connected to one side of the base plate 1. A second threaded block 22 is threadedly connected to the outer surface of the second threaded rod 21. A limiting plate 25 is fixedly connected to the upper end of the second threaded block 22. A third vertical plate 26 is symmetrically arranged on the upper end of the base plate 1. A third motor 27 is fixedly connected to one side of one of the third vertical plates 26. A take-up roller 28 is fixedly connected to the output shaft of the third motor 27. By setting the second motor 11, the second driving pulley 12, the second transmission belt 13, the second driven pulley 14, the first threaded rod 16, the first threaded block 17, the second threaded rod 21, and the second threaded block 22, the cutting blade 20 and the limiting plate 25 are driven to move, which facilitates the adjustment of the cutting width of the protective film. It has strong versatility and high efficiency, and at the same time facilitates the separation and winding of the cut protective film.
[0025] A protective film unwinding assembly 2 is fixedly connected to the upper end of the base plate 1. A first bearing 18 is fixedly connected to one side of the first threaded rod 16 to facilitate the rotation of the first threaded rod 16. The first bearing 18 is fixed to the inner side wall of the mounting rod 15. The upper end of the first threaded block 17 is slidably connected to the inner top wall of the mounting rod 15. A moving groove 24 is opened on the upper surface of the base plate 1. The second threaded rod 21 and the second threaded block 22 are both located in the moving groove 24. A second bearing 23 is fixedly connected to one side of the second threaded rod 21 to facilitate the rotation of the second threaded rod 21. The second bearing 23 is fixed to the side wall of the moving groove 24. The lower end of the second threaded block 22 is slidably connected to the bottom wall of the moving groove 24. The limiting plate 25 is slidably connected to the outer surface of the take-up roller 28.
[0026] Working principle: When in use, the power is turned on, and the protective film is unwound through the protective film unwinding assembly 2. The first motor 4 is started, which drives the first drive pulley 5 to rotate. The first drive pulley 5 drives the first driven pulley 6 to rotate through the first transmission belt 7, which in turn drives the tension roller 8 to rotate, thus conveying the protective film and ensuring tension. The second motor 11 is started, which drives the second drive pulley 12 to rotate. The second drive pulley 12 drives the second driven pulley 14 to rotate through the second transmission belt 13. The second drive pulley 12 drives the first threaded rod 16 to rotate. The first threaded rod 16 drives the first threaded block 17 to move, and the first threaded block 17 drives the electric push rod 19 and the cutting blade 20 to move. The second driven pulley 14 drives the second threaded rod 21 to rotate, and the second threaded rod 21 drives the second threaded block 22 to move. The second threaded block 22 drives the limiting plate 25 to move, so as to move synchronously with the cutting blade 20. When the protective film is above the guide roller 10, the electric push rod 19 is started. The electric push rod 19 drives the cutting blade 20 to descend and cut the protective film. The third motor 27 is started, which drives the winding roller 28 to rotate and separate and wind up the cut protective film.
[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A cutting tool for a protective film, comprising a base plate (1), characterized in that, The upper end of the bottom plate (1) is symmetrically provided with a first vertical plate (3), one side of the first vertical plate (3) is fixedly connected with a first motor (4), the output shaft of the first motor (4) is fixedly connected with a first driving pulley (5), one side of the first vertical plate (3) is rotatably connected with a first driven pulley (6), the outer surfaces of the first driving pulley (5) and the first driven pulley (6) are provided with a first transmission belt (7), and the first driving pulley (5) and the first driven pulley (6) are fixedly connected with a tensioning roller (8) on one side. The upper end of the bottom plate (1) is symmetrically provided with a second vertical plate (9), the second vertical plates (9) are rotatably connected with a guide roller (10) between the two, one side of the second vertical plate (9) is fixedly connected with a second motor (11), the output shaft of the second motor (11) is fixedly connected with a second driving pulley (12), one side of the bottom plate (1) is rotatably connected with a second driven pulley (14), the outer surfaces of the second driving pulley (12) and the second driven pulley (14) are provided with a second transmission belt (13), the second vertical plates (9) are fixedly connected with a mounting rod (15) between the two, one side of the second driving pulley (12) is fixedly connected with a first threaded rod (16), the outer surface of the first threaded rod (16) is threadedly connected with a first threaded block (17), the lower end of the first threaded block (17) is fixedly connected with an electric push rod (19), the lower end of the electric push rod (19) is fixedly connected with a cutting knife (20), one side of the second driven pulley (14) is fixedly connected with a second threaded rod (21), the outer surface of the second threaded rod (21) is threadedly connected with a second threaded block (22), the upper end of the second threaded block (22) is fixedly connected with a limiting plate (25), the upper end of the bottom plate (1) is symmetrically provided with a third vertical plate (26), one side of the third vertical plate (26) is fixedly connected with a third motor (27), and the output shaft of the third motor (27) is fixedly connected with a winding roller (28).
2. The cutting tool for a protective film according to Claim 1, characterized by: The upper end of the bottom plate (1) is fixedly connected with a protective film unwinding assembly (2).
3. The cutting tool for a protective film according to Claim 1, characterized by: One side of the first threaded rod (16) is fixedly connected with a first bearing (18), and the first bearing (18) is fixed to the inner side wall of the mounting rod (15).
4. The cutting tool for a protective film according to Claim 1, characterized by: The upper end of the first threaded block (17) is slidably connected with the inner top wall of the mounting rod (15).
5. The cutting tool for a protective film according to Claim 1, characterized by: The upper surface of the bottom plate (1) is provided with a moving groove (24), and the second threaded rod (21) and the second threaded block (22) are located in the moving groove (24).
6. The cutting tool for a protective film according to Claim 5, characterized by: The lower end of the second threaded block (22) is slidably connected with the bottom wall of the moving groove (24).
7. The cutting tool for a protective film according to Claim 1, characterized by: The limiting plate (25) is slidably connected with the outer surface of the winding roller (28).