Edge cutting excess material chopping device for high-tear-resistance waterproof polyurethane film
Through the motor-driven crushing roller and blade combination, water spray system and iron-absorbing stone design, the problem of dust and debris contamination during the cutting of high tear-resistant waterproof polyurethane film is solved, and clean chopping and convenient maintenance are achieved.
Patent Information
- Application Number
- CN202510783721.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2025-08-01
AI Technical Summary
The existing high tear-resistant waterproof polyurethane film chopping device generates a large amount of dust and debris during the crushing process, contaminating the workshop environment.
The combination of motor-driven crushing rollers and blades is combined with a water spray system and a detachable crushing knife and iron-absorbing stone design to achieve the initial and secondary chopping of the film, and dust reduction and debris absorption by spraying water is equipped with a detachable filter structure for easy cleaning.
Effectively inhibit the production of dust and debris, reduce workshop pollution, and support the separate maintenance and replacement of blades and filters to meet different chopping needs.
Smart Images
Figure CN120396191A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of shredding of thin film scraps, and specifically to a shredding device for trimming scraps of high tear-resistant and waterproof polyurethane films. Background Art
[0002] The high tear-resistant and waterproof polyurethane film is a high-performance polyurethane material with excellent tear resistance, waterproofness, abrasion resistance and flexibility. After the scraps are shredded, they can be recycled and reused more efficiently, reducing waste, so a shredding device for trimming scraps of high tear-resistant and waterproof polyurethane films will be used.
[0003] The shredding device for trimming scraps of high tear-resistant and waterproof polyurethane films is a device specifically used to process the scraps generated during the production process. The device shreds the scraps into smaller pieces through mechanical cutting, crushing, etc., so as to facilitate subsequent recycling and reuse. In the existing crushing device, two mutually cooperating steel rollers are used to traction the film edge material, and the two steel rods are abutted against each other to crush the edge material. A large amount of crushing and debris generated by the wear of the steel rods themselves will be generated during the crushing process, which causes great pollution to the workshop environment. Summary of the Invention
[0004] Aiming at the deficiencies of the prior art, the present invention provides a shredding device for trimming scraps of high tear-resistant and waterproof polyurethane films, which solves the problem of generating a large amount of dust and debris during the shredding process of the film.
[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A shredding device for trimming scraps of high tear-resistant and waterproof polyurethane films, including a feeding box, a connecting plate is fixedly connected to the outer wall of the feeding box, a motor is fixedly connected to the inside of the connecting plate, a first roller is fixedly arranged at the output end of the motor, a shredding box is rotatably connected to the outer wall of the first roller, the upper surface of the shredding box is fixedly connected to the lower surface of the feeding box, a first conveyor belt is arranged on the outer wall of the first roller, a second roller is arranged on the inner wall of the first conveyor belt, the outer wall of the second roller is rotatably connected to the inside of the shredding box, a crushing roller is fixedly connected to the inside of the first roller, the outer wall of the crushing roller is rotatably connected to the inside of the shredding box, blades are fixedly connected to the outer wall of the crushing roller, a water spraying port is opened in the inside of the crushing roller, and a water supply assembly is arranged on the outer wall of the shredding box, and the water supply assembly is used to provide water source.
[0006] Preferably, the water supply assembly includes a water tank, the outer wall of the water tank is fixedly connected to the outer wall of the chopping box, a water pump is fixedly connected to the upper surface of the water tank, the output end of the water pump is fixedly connected to a water pipe, the outer wall of the water pipe is fixedly connected to the inside of the chopping box, the outer wall of the water pipe is rotatably connected to the inside of the crushing roller, a second conveyor belt is arranged on the outer wall of the second roller, a third roller is arranged on the inner wall of the second conveyor belt, the outer wall of the third roller is rotatably connected to the inside of the chopping box, a rotating roller is fixedly connected to the inside of the third roller, and the outer wall of the rotating roller is rotatably connected to the inside of the chopping box.
[0007] Preferably, a crushing knife is slidably connected to the outer wall of the rotating roller, a magnet is arranged on the outer wall of the crushing knife, and a push rod is slidably connected to the inside of the rotating roller.
[0008] Preferably, a push block is fixedly connected to the outer wall of the push rod, the outer wall of the push block is slidably connected to the inside of the rotating roller, a first rotating shaft is rotatably connected to the inside of the push block, and a rotating rod is fixedly connected to the outer wall of the first rotating shaft.
[0009] Preferably, a second rotating shaft is fixedly connected to the inside of the rotating rod, a slider is rotatably connected to the outer wall of the second rotating shaft, the outer wall of the slider is slidably connected to the inside of the rotating roller, one end of a first spring is fixedly connected to the outer wall of the slider, and the other end of the first spring is fixedly connected to the inside of the rotating roller.
[0010] Preferably, a clamping block is fixedly connected to the outer wall of the slider, the outer wall of the clamping block is slidably connected to the inside of the rotating roller, and the outer wall of the clamping block is slidably connected to the inside of the crushing knife.
[0011] Preferably, a receiving box is fixedly connected to the lower surface of the chopping box, a filter screen is slidably connected to the inside of the receiving box, a pull ring is slidably connected to the inside of the receiving box, a sliding piece is fixedly connected to the outer wall of the pull ring, and the outer wall of the sliding piece is slidably connected to the inside of the receiving box.
[0012] Preferably, one end of a second spring is fixedly connected to the outer wall of the sliding piece, the other end of the second spring is fixedly connected to the inside of the receiving box, a clamping rod is fixedly connected to the outer wall of the second spring, the outer wall of the clamping rod is slidably connected to the inside of the receiving box, and the outer wall of the clamping rod is slidably connected to a sliding column.
[0013] Preferably, the outer wall of the sliding column is slidably connected to the inside of the receiving box, a pushing piece is fixedly connected to the outer wall of the sliding column, the outer wall of the pushing piece is slidably connected to the inside of the receiving box, one end of a third spring is fixedly connected to the outer wall of the pushing piece, the other end of the third spring is fixedly connected to the inside of the receiving box, a fixing column is fixedly connected to the outer wall of the third spring, and the outer wall of the fixing column is slidably connected to the inside of the receiving box and the filter screen.
[0014] Preferably, a box door is slidably connected to the inner wall of the receiving box. Screws are provided on the outer wall of the box door, and nuts are threadedly connected to the outer walls of the screws. The outer walls of the nuts are arranged on the outer wall of the shredding box.
[0015] Working principle: When the device needs to be used, first start the motor, and place the polyurethane film to be shredded into the inner part of the feeding box. The motor will drive the crushing roller and the blade to rotate through the first roller, and conduct primary shredding on the film. Starting the water pump can transport water from the inside of the water tank to the inside of the crushing roller through the water pipe. Through multiple water spray nozzles, rotating water spraying can be carried out during the shredding process to reduce dust. The rotation of the first roller can drive the second roller to rotate through the first conveyor belt. The second roller will drive the third roller to rotate through the second conveyor belt. The third roller will drive the internal rotating roller and the crushing knife to rotate, and conduct secondary shredding on the film; Magnets are provided on the outer wall of the crushing knife, which can adsorb the debris generated during the shredding process by the crushing roller and the rotating roller. The crushing knife and the rotating roller are designed to be detachable. When it is necessary to maintain or replace the crushing knife or the magnet, just push the push rod. The push rod will push the push block to slide. During the sliding process of the push block, it will push the rotating rod to rotate through the first rotating shaft. The rotation of the rotating rod will pull the slider to slide through the second rotating shaft, and simultaneously squeeze the first spring during this process, and at the same time pull the clamping block out of the inside of the crushing knife. At this time, the crushing knife and the magnet can be detached from the outer wall of the rotating roller, and the crushing knife can be replaced and maintained separately; The fully shredded film will fall onto the upper surface of the filter screen through the receiving box and be filtered by the filter screen. During long-term use, the filter screen will be blocked due to accumulation. When it is necessary to clean or replace it, just pull the pull ring. The pull ring will pull the sliding piece to slide and squeeze the second spring during this process. At the same time, the clamping rod can be pulled out of the inside of the sliding column through the sliding of the sliding piece, releasing the restriction on the sliding column. At this time, the third spring is no longer pressed by the sliding column and the pushing piece, and will push the pushing piece to slide through elastic return. At the same time, the fixing column can be pulled out of the inside of the filter screen through the sliding action of the pushing piece, and the filter screen can be pulled out of the inside of the receiving box. By screwing the nut, it can slide on the outer wall of the screw, and the box door can be opened from the inner wall of the receiving box; This device can not only rotate and spray water synchronously during the primary shredding of the film, achieving the effect of effectively capturing and suppressing the generation of dust and debris, reducing the pollution of the dust to the workshop environment, but also adjust the number of crushing knives according to different shredding requirements. And when maintenance and replacement are needed, the crushing knife and the magnet can be disassembled separately, achieving the effect of adsorbing the debris generated during the shredding process, being applicable to different shredding requirements and being able to be maintained and replaced separately. Further, it can filter the shredded film, facilitating the extraction of the filter screen for cleaning and replacement.
[0016] The present invention provides a shredding device for the cut-edge waste of a high tear-resistant waterproof polyurethane film. It has the following beneficial effects: 1. In the present invention, the motor drives the first roller and the crushing roller to rotate. By starting the water pump, water is transported through the water pipe into the crushing roller and sprayed out through the spray nozzles while rotating, spraying water while initially shredding the film, achieving the effect of effectively capturing and suppressing the generation of dust and debris during the film shredding process and reducing the pollution of the workshop environment by dust.
[0017] 2. In the present invention, the rotation of the first roller drives the third roller to rotate through the first conveyor belt and the second conveyor belt. The third roller drives the rotating roller, the blade and the magnet to rotate. The detachable design of the blade and the rotating roller achieves the adsorption of debris during the secondary film shredding process, and can flexibly adjust the number of blades to meet different shredding requirements while separately maintaining and replacing the blade and the magnet.
[0018] 3. In the present invention, by pulling the pull ring to drive the sliding piece to slide, the clamping rod is pulled out of the inside of the sliding column, and the fixing column is slid out of the inside of the filter screen by the rebound of the third spring, achieving the effect of filtering the shredded film and facilitating the cleaning and replacement of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a perspective view of the present invention; Figure 2 is a partial structural schematic diagram of the water pipe of the present invention; Figure 3 is a schematic cross-sectional view of the internal structure of the shredding box of the present invention; Figure 4 is a partial structural schematic diagram of the crushing knife of the present invention; Figure 5 is a partial structural schematic diagram of the water tank of the present invention; Figure 6 is a schematic cross-sectional view of the internal structure of the rotating roller of the present invention; Figure 7 is a schematic cross-sectional view of the internal structure of the material collection box of the present invention; Figure 8 is Figure 7 the enlarged schematic diagram at A in
[0020] Among them, 1. Feed box; 2. Connecting plate; 3. Motor; 4. First roller; 5. Chopping box; 6. First conveyor belt; 7. Second roller; 8. Crushing roller; 9. Blade; 10. Water spray port; 11. Second conveyor belt; 12. Third roller; 13. Rotating roller; 14. Water tank; 15. Water pump; 16. Water pipe; 17. Crushing knife; 18. Magnet; 19. Push rod; 20. Push block; 21. First rotating shaft; 22. Rotating rod; 23. Second rotating shaft; 24. Slide block; 25. First spring; 26. Clamping block; 27. Receiving box; 28. Filter screen; 29. Pull ring; 30. Slide piece; 31. Second spring; 32. Clamping rod; 33. Slide column; 34. Push piece; 35. Third spring; 36. Fixed column; 37. Box door; 38. Screw; 39. Nut. Detailed implementation manner
[0021] Next, the technical solutions of the present invention will be described clearly and completely in conjunction with the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0022] Please refer to the attached Figure 1 -attached Figure 5 , the embodiment of the present invention provides a device for chopping the trimming of the high tear-resistant and waterproof polyurethane film, including a feed box 1. A connecting plate 2 is fixedly connected to the outer wall of the feed box 1. A motor 3 is fixedly connected inside the connecting plate 2. A first roller 4 is fixedly arranged at the output end of the motor 3. The outer wall of the first roller 4 is rotatably connected to a chopping box 5. The upper surface of the chopping box 5 is fixedly connected to the lower surface of the feed box 1. A first conveyor belt 6 is arranged on the outer wall of the first roller 4. A second roller 7 is arranged on the inner wall of the first conveyor belt 6. The outer wall of the second roller 7 is rotatably connected inside the chopping box 5. A crushing roller 8 is fixedly connected inside the first roller 4. The outer wall of the crushing roller 8 is rotatably connected inside the chopping box 5. Blades 9 are fixedly connected to the outer wall of the crushing roller 8. A water spray port 10 is opened inside the crushing roller 8. A water supply assembly is arranged on the outer wall of the chopping box 5, and the water supply assembly is used to provide water source.
[0023] Specifically, the feeding box 1 functions to place the high tear-resistant waterproof polyurethane film that needs to be crushed, facilitating the feeding. The connecting plate 2 is fixed to the outer wall of the feeding box 1 to fix the motor 3. Through the driving action of the motor 3, the first roller 4 can rotate. The chopping box 5 functions to support the first roller 4 and the second roller 7, enabling them to rotate stably. Through the rotation of the first roller 4, the second roller 7 can rotate through the first conveyor belt 6. The first roller 4 functions to fix the crushing roller 8, and the crushing roller 8 functions to fix the blade 9, enabling the crushing roller 8 and the blade 9 to rotate through the rotation of the first roller 4 to chop the film. The water spraying port 10 opened in the crushing roller 8 functions to spray water, which can spray water synchronously with the crushing of the film to suppress the dust and debris generated during the crushing process and avoid environmental pollution.
[0024] Please refer to the attached Figure 1 - attached Figure 3 , the water supply assembly includes a water tank 14, the outer wall of the water tank 14 is fixedly connected to the outer wall of the chopping box 5, the upper surface of the water tank 14 is fixedly connected with a water pump 15, the output end of the water pump 15 is fixedly connected with a water pipe 16, the outer wall of the water pipe 16 is fixedly connected inside the chopping box 5, the outer wall of the water pipe 16 is rotatably connected inside the crushing roller 8, the outer wall of the second roller 7 is provided with a second conveyor belt 11, the inner wall of the second conveyor belt 11 is provided with a third roller 12, the outer wall of the third roller 12 is rotatably connected inside the chopping box 5, and the inside of the third roller 12 is fixedly connected with a rotating roller 13, and the outer wall of the rotating roller 13 is rotatably connected inside the chopping box 5.
[0025] Specifically, the chopping box 5 functions to fix the water tank 14, and the water tank 14 functions to place the water source. Start the water pump 15, and through the driving action of the water pump 15, the water source inside the water tank 14 can be transported through the water pipe 16 to the inside of the crushing roller 8. The crushing roller 8 is of a hollow design and can hold the water source for subsequent water spraying. Through the transmission of the second roller 7, the third roller 12 can rotate through the second conveyor belt 11. The third roller 12 functions to fix the rotating roller 13, and further enables the rotating roller 13 to rotate inside the chopping box 5.
[0026] Please refer to the attached Figure 3 - attached Figure 5 , a crushing knife 17 is slidably connected to the outer wall of the rotating roller 13, a magnet 18 is provided on the outer wall of the crushing knife 17, and a push rod 19 is slidably connected to the inside of the rotating roller 13.
[0027] Specifically, the rotating roller 13 serves to support the crushing knife 17. The design of the magnet 18 on the outer wall of the crushing knife 17 can adsorb the steel chips generated during the friction between the rotating roller 13 during the shredding process. At the same time, the rotating roller 13 serves to support the push rod 19. The crushing knives 17 on both sides are designed to be staggered with each other, enabling all-round shredding of the film.
[0028] Please refer to the appendix Figure 5 - appendix Figure 6 On the outer wall of the push rod 19, a push block 20 is fixedly connected. The outer wall of the push block 20 is slidably connected inside the rotating roller 13. Inside the push block 20, a first rotating shaft 21 is rotatably connected. On the outer wall of the first rotating shaft 21, a rotating rod 22 is fixedly connected.
[0029] Specifically, the push rod 19 serves to fix the push block 20. When the push rod 19 is pushed, the push block 20 can slide due to the pushing action of the push rod 19. The first rotating shaft 21 serves to connect the push block 20 and the rotating rod 22, enabling the rotating rod 22 to rotate through the transmission of the first rotating shaft 21.
[0030] Please refer to the appendix Figure 6 Inside the rotating rod 22, a second rotating shaft 23 is fixedly connected. On the outer wall of the second rotating shaft 23, a slider 24 is rotatably connected. The outer wall of the slider 24 is slidably connected inside the rotating roller 13. One end of a first spring 25 is fixedly connected to the outer wall of the slider 24, and the other end of the first spring 25 is fixedly connected inside the rotating roller 13.
[0031] Specifically, the second rotating shaft 23 serves to connect the rotating rod 22 and the slider 24, enabling the slider 24 to slide through the transmission of the second rotating shaft 23. The first spring 25 will also be compressed due to the sliding of the slider 24. The first spring 25 serves to provide a rebounding force.
[0032] Please refer to the appendix Figure 6 On the outer wall of the slider 24, a clamping block 26 is fixedly connected. The outer wall of the clamping block 26 is slidably connected inside the rotating roller 13, and the outer wall of the clamping block 26 is slidably connected inside the crushing knife 17.
[0033] Specifically, the slider 24 serves to fix the clamping block 26, enabling the clamping block 26 to slide out of the inside of the crushing knife 17 and be retracted into the inside of the rotating roller 13 through the sliding of the slider 24. After removing the restriction on the crushing knife 17, the crushing knife 17 and the magnet 18 can be removed from the outer wall of the rotating roller 13, facilitating subsequent cleaning or maintenance and replacement.
[0034] Please refer to the appendix Figure 1 、appendix Figure 7 and appendix Figure 8, the lower surface of the shredding box 5 is fixedly connected to a material collection box 27. A filter screen 28 is slidably connected inside the material collection box 27. A pull ring 29 is slidably connected inside the material collection box 27. The outer wall of the pull ring 29 is fixedly connected to a sliding piece 30, and the outer wall of the sliding piece 30 is slidably connected inside the material collection box 27.
[0035] Specifically, the material collection box 27 is fixed to the lower surface of the shredding box 5 to support the filter screen 28. The shredded film can be collected through the material collection box 27. The filter screen 28 filters the shredded film. The material collection box 27 supports the pull ring 29, and the pull ring 29 fixes the sliding piece 30. The sliding piece 30 can slide inside the material collection box 27 by pulling the pull ring 29.
[0036] Please refer to Appendix Figure 7 -Appendix Figure 8 , one end of a second spring 31 is fixedly connected to the outer wall of the sliding piece 30, the other end of the second spring 31 is fixedly connected inside the material collection box 27, a clamping rod 32 is fixedly connected to the outer wall of the second spring 31, the outer wall of the clamping rod 32 is slidably connected inside the material collection box 27, and a sliding column 33 is slidably connected to the outer wall of the clamping rod 32.
[0037] Specifically, the second spring 31 can be compressed by the sliding of the sliding piece 30. The sliding piece 30 connects the clamping rod 32 and the pull ring 29. Thus, the clamping rod 32 slides inside the material collection box 27 by the pulling of the sliding piece 30, and then slides out from inside the sliding column 33. The clamping rod 32 positions the sliding column 33.
[0038] Please refer to Appendix Figure 7 -Appendix Figure 8 , the outer wall of the sliding column 33 is slidably connected inside the material collection box 27. A pushing piece 34 is fixedly connected to the outer wall of the sliding column 33. The outer wall of the pushing piece 34 is slidably connected inside the material collection box 27. One end of a third spring 35 is fixedly connected to the outer wall of the pushing piece 34, the other end of the third spring 35 is fixedly connected inside the material collection box 27, a fixing column 36 is fixedly connected to the outer wall of the third spring 35, and the outer wall of the fixing column 36 is slidably connected inside the material collection box 27 and the filter screen 28.
[0039] Specifically, the pushing piece 34 connects the sliding column 33 and the fixing column 36. When the position of the sliding column 33 is restricted, the third spring 35 will be compressed. Conversely, when the restriction on the sliding column 33 is released, the pressure on the third spring 35 can be released. The third spring 35 rebounds and can push the fixing column 36 through the rebounding action to slide out of the inside of the filter screen 28, releasing the restriction on the filter screen 28. Then the filter screen 28 can be pulled out from inside the material collection box 27 for cleaning or replacement, which is convenient for maintenance.
[0040] Please refer to Appendix Figure 1 -AppendixFigure 2 , a box door 37 is slidably connected to the inner wall of the material receiving box 27. Screws 38 are provided on the outer wall of the box door 37, and nuts 39 are threadedly connected to the outer walls of the screws 38. The outer walls of the nuts 39 are provided on the outer wall of the shredding box 5.
[0041] Specifically, through the design of the openable box door 37, the material receiving box 27 can be conveniently opened to check the shredding condition therein. Through the design of the screws 38 and nuts 39, it is convenient to open the box door 37 and lock the box door 37 and the material receiving box 27 when it is not opened.
[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A shredding device for the cut-edge leftovers of a high tear-resistant waterproof polyurethane film, comprising a feeding box (1), characterized in that: The outer wall of the feed box (1) is fixedly connected with a connecting plate (2). The inside of the connecting plate (2) is fixedly connected with a motor (3). The output end of the motor (3) is fixedly provided with a first roller (4). The outer wall of the first roller (4) is rotationally connected with a chopping box (5). The upper surface of the chopping box (5) is fixedly connected to the lower surface of the feed box (1). The outer wall of the first roller (4) is provided with a first conveyor belt (6). The inner wall of the first conveyor belt (6) is provided with a second roller (7). The outer wall of the second roller (7) is rotationally connected inside the chopping box (5). The inside of the first roller (4) is fixedly connected with a crushing roller (8). The outer wall of the crushing roller (8) is rotationally connected inside the chopping box (5). The outer wall of the crushing roller (8) is fixedly connected with blades (9). The inside of the crushing roller (8) is provided with a water spraying port (10). The outer wall of the chopping box (5) is provided with a water supply assembly for providing water source.
2. The trimming waste shredding device for the high tear-resistant waterproof polyurethane film according to claim 1, wherein: The water supply assembly includes a water tank (14). The outer wall of the water tank (14) is fixedly connected to the outer wall of the chopping box (5). The upper surface of the water tank (14) is fixedly connected with a water pump (15). The output end of the water pump (15) is fixedly connected with a water pipe (16). The outer wall of the water pipe (16) is fixedly connected inside the chopping box (5). The outer wall of the water pipe (16) is rotationally connected inside the crushing roller (8). The outer wall of the second roller (7) is provided with a second conveyor belt (11). The inner wall of the second conveyor belt (11) is provided with a third roller (12). The outer wall of the third roller (12) is rotationally connected inside the chopping box (5). The inside of the third roller (12) is fixedly connected with a rotating roller (13). The outer wall of the rotating roller (13) is rotationally connected inside the chopping box (5).
3. The trimming waste chopping device for the high tear-resistant waterproof polyurethane film according to claim 2, characterized in that: The outer wall of the rotating roller (13) is slidably connected with a crushing knife (17). The outer wall of the crushing knife (17) is provided with a magnet (18). The inside of the rotating roller (13) is slidably connected with a push rod (19).
4. The trimming waste shredding device for the high tear-resistant waterproof polyurethane film according to claim 3, characterized in that: The outer wall of the push rod (19) is fixedly connected with a push block (20). The outer wall of the push block (20) is slidably connected inside the rotating roller (13). The inside of the push block (20) is rotationally connected with a first rotating shaft (21). The outer wall of the first rotating shaft (21) is fixedly connected with a rotating rod (22).
5. The trimming waste shredding device for the high tear-resistant waterproof polyurethane film according to claim 4, characterized in that: The inside of the rotating rod (22) is fixedly connected with a second rotating shaft (23). The outer wall of the second rotating shaft (23) is rotationally connected with a slider (24). The outer wall of the slider (24) is slidably connected inside the rotating roller (13). One end of a first spring (25) is fixedly connected to the outer wall of the slider (24), and the other end of the first spring (25) is fixedly connected inside the rotating roller (13).
6. The trimming waste shredding device for the high tear-resistant waterproof polyurethane film according to claim 5, characterized in that: The outer wall of the slider (24) is fixedly connected with a clamping block (26). The outer wall of the clamping block (26) is slidably connected inside the rotating roller (13). The outer wall of the clamping block (26) is slidably connected inside the crushing knife (17).
7. The trimming waste shredding device for the high tear-resistant waterproof polyurethane film according to claim 1, characterized in that: The lower surface of the chopping box (5) is fixedly connected to a material receiving box (27). A filter screen (28) is slidably connected inside the material receiving box (27). A pull ring (29) is slidably connected inside the material receiving box (27). One end of a sliding piece (30) is fixedly connected to the outer wall of the pull ring (29), and the outer wall of the sliding piece (30) is slidably connected inside the material receiving box (27).
8. The trimming waste shredding device for the high tear-resistant waterproof polyurethane film according to claim 7, wherein: One end of a second spring (31) is fixedly connected to the outer wall of the sliding piece (30), and the other end of the second spring (31) is fixedly connected inside the material receiving box (27). A clamping rod (32) is fixedly connected to the outer wall of the second spring (31). The outer wall of the clamping rod (32) is slidably connected inside the material receiving box (27), and the outer wall of the clamping rod (32) is slidably connected to a sliding column (33).
9. The trimming waste shredding device for the high tear-resistant waterproof polyurethane film according to claim 8, wherein: The outer wall of the sliding column (33) is slidably connected inside the material receiving box (27). A pushing piece (34) is fixedly connected to the outer wall of the sliding column (33). The outer wall of the pushing piece (34) is slidably connected inside the material receiving box (27). One end of a third spring (35) is fixedly connected to the outer wall of the pushing piece (34), and the other end of the third spring (35) is fixedly connected inside the material receiving box (27). A fixing column (36) is fixedly connected to the outer wall of the third spring (35). The outer wall of the fixing column (36) is slidably connected inside the material receiving box (27) and the filter screen (28).
10. The trimming residue shredding device for the high tear-resistant waterproof polyurethane film according to claim 7, characterized in that: A box door (37) is slidably connected to the inner wall of the material receiving box (27). Screws (38) are arranged on the outer wall of the box door (37). Nuts (39) are threadedly connected to the outer walls of the screws (38), and the outer walls of the nuts (39) are arranged on the outer wall of the chopping box (5).