Edge trimmer for TPU film processing

Abstract

The utility model discloses an edge trimmer for TPU (thermoplastic polyurethane) film processing, which relates to the field of TPU film processing and comprises an edge trimmer base, a film feeding frame is fixedly mounted behind the edge trimmer base, a TPU film body is sleeved on the outer wall of the film feeding frame, a material guide frame is fixedly connected to the inner wall of the film feeding frame behind the edge trimmer base, and the TPU film body is sleeved on the material guide frame. Three material guide rollers are arranged on the inner wall of the material guide frame, and two supporting frames are fixedly installed on the top of the rear face of the edge trimmer base. By arranging the lower conveying belt and the upper conveying belt, TPU films can be automatically conveyed and discharged, by arranging the protective teeth, the grabbing force on TPU film bodies can be achieved, the TPU film bodies are prevented from sliding or shifting in the conveying process, the effect of protecting the surfaces of the films from being scratched or abraded is further achieved, by arranging the hydraulic cylinder bodies and the pressing rollers, the TPU films can be fixedly cut, and the TPU film cutting efficiency is improved. And meanwhile, a screw rod is arranged, so that the height of the compression roller can be accurately adjusted to adapt to TPU films with different thicknesses.

Description

Technical Field

[0001] The utility model relates to the technical field of TPU film processing, in particular to a trimming machine for TPU film processing. Background Art

[0002] TPU film processing refers to the process of making TPU (thermoplastic polyurethane) materials into thin film products through a series of specific process steps. It has excellent wear resistance, elasticity and chemical resistance, so it is widely used in many fields. During the TPU film processing process, it is necessary to trim the edges, so a trimming machine is used.

[0003] When using existing trimming machines, TPU film is usually manually moved and fed. Due to the limitations of manual operation, manual feeding often cannot meet high-precision requirements, resulting in errors and deviations in the feeding process, affecting the quality and consistency of trimming and increasing labor costs.

[0004] In order to overcome the above-mentioned defects, the prior art (application number: 202022238554.9, Chinese patent application date: 2020.10.10) discloses a trimming device for TPU film processing. The trimming device is equipped with a discharge roller and a winding roller on both sides of the machine to convey and discharge the TPU film.

[0005] Although the existing technology can solve the problem of conveying and unloading TPU film, the trimming blade is set between the unloading roller and the winding roller. Since the TPU film is relatively soft, it is difficult for the TPU film to continue to connect with the winding roller after trimming is completed, thereby interrupting the subsequent trimming, resulting in poor conveying and unloading effect, and it is impossible to prevent it from sliding or deflecting during the conveying process, which easily causes wear on the film surface. At the same time, it cannot be fixed during the trimming process, which makes the film easily deflected or wrinkled, reducing the trimming effect and efficiency.

[0006] Therefore, we proposed a TPU film processing trimming machine that can solve the above problems well. Utility Model Content

[0007] The purpose of the utility model is to provide a trimming machine for TPU film processing to solve the problem raised in the above background technology that a trimming machine for TPU film processing currently on the market is used, but the trimming blade is set between the unwinding roller and the winding roller. Since the TPU film is relatively soft, it is difficult for the TPU film to continue to connect with the winding roller after the trimming is completed, so that the subsequent trimming is interrupted, resulting in poor conveying and unloading effect, and it is impossible to prevent sliding or deviation during the conveying process, which easily causes wear to the film surface. At the same time, it cannot be fixed during the trimming process, which makes the film easily deviate or wrinkle, reducing the trimming effect and efficiency.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a trimming machine for processing TPU film, comprising a trimming machine base, a film unloading rack fixedly mounted on the rear of the trimming machine base, and a TPU film body sleeved on the outer wall of the film unloading rack, a guide rack fixedly connected to the inner wall of the film unloading rack on the rear of the trimming machine base, three guide rollers being arranged on the inner wall of the guide rack, and two support racks fixedly mounted on the top of the rear of the trimming machine base;

[0009] The present invention also includes: a servo motor body is provided on the left side behind the support frame, the output shaft of the servo motor body is fixedly mounted with a first rotating roller through a coupling, and the end of the first rotating roller passes through the support frame, the outer wall on the right side of the first rotating roller is provided with a first belt, the inner wall behind the first belt passes through a second rotating roller, and the outer walls of the second rotating roller and the first rotating roller are provided with a lower conveyor belt;

[0010] The top of the trimmer base is located on the front of the support frame and is provided with two conveying rollers. A fixed frame is fixedly installed on the top of the front of the trimmer base. Two hydraulic cylinder bodies are provided on the top of the fixed frame. A mobile frame is fixedly installed on the output end of the hydraulic cylinder body. A cutting blade is provided on the inner top wall of the mobile frame.

[0011] As a preferred technical solution of the present application, the outer wall on the right side of the second rotating roller is provided with a first gear, the top of the first gear is provided with a second gear, the inside of the second gear is provided with a third rotating roller, and the end of the third rotating roller passes through the support frame, the outer wall on the right side of the third rotating roller is provided with a second belt, and the inner wall behind the second belt passes through a fourth rotating roller, and the outer walls of the third rotating roller and the fourth rotating roller are provided with an upper conveyor belt.

[0012] As the preferred technical solution of the present application, the upper conveyor belt and the lower conveyor belt are arranged parallel to each other, and the outer walls of the upper conveyor belt and the lower conveyor belt are provided with a plurality of protective teeth, and the protective teeth are provided to be made of rubber. By providing a plurality of protective teeth made of rubber, the grip on the TPU film body is increased to prevent it from sliding or deflecting during transportation, and also protect the surface of the film from being scratched or worn.

[0013] As the preferred technical solution of the present application, a fixed plate is fixedly installed on the back of both sides of the movable frame, a groove is opened inside the fixed plate, and sliding grooves are opened on the front and rear sides of the fixed plate on the inner walls of the groove, a rotating motor body is provided on the top of the fixed plate on the right side of the movable frame, the output shaft of the rotating motor body is fixedly installed with a screw through a coupling, and the end of the screw passes through the fixed plate, the outer wall of the screw is provided with a threaded sleeve, and slides are passed through the front and rear sides of the threaded sleeve, and the end of the slide passes through the sliding groove, a pressure roller is provided on the left side of the threaded sleeve, and a limiting groove is provided on the top of the trimmer base below the fixed plate.

[0014] As the preferred technical solution of the present application, threaded sleeves are fixedly installed on both sides of the pressure roller, and a guide rod is passed through the interior of the threaded sleeve on the left side of the pressure roller. During the movement of the pressure roller, the threaded sleeve connected to the left side is driven to move on the guide rod, thereby increasing the stability and guiding effect of the movement of the pressure roller.

[0015] As a preferred technical solution of the present application, the first gear and the second gear are meshedly connected, and the second gear and the third rotating roller are fixedly connected. The first rotating roller rotates, driving the first gear and the second gear to mesh and rotate, so that the second gear drives the third rotating roller to rotate.

[0016] As the preferred technical solution of the present application, the threaded sleeve is movably connected to the screw rod and the groove, the threaded sleeve is tightly fitted to the slide plate, and the slide plate is slidably connected to the slide groove. During the movement of the threaded sleeve, the slide plate is driven to slide in the corresponding slide groove, thereby increasing the stability of the threaded sleeve movement.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This TPU film processing trimming machine is equipped with a lower conveyor belt and an upper conveyor belt to automatically convey and discharge TPU film. It is also equipped with protective teeth to grip the TPU film body to prevent it from sliding or deflecting during transportation, and also protect the film surface from being scratched or worn. It is also equipped with a hydraulic cylinder body and a pressure roller to perform fixed cutting on the TPU film. A screw is also provided to accurately adjust the height of the pressure roller to accommodate TPU films of different thicknesses. The specific contents are shown below:

[0019] 1. A lower conveyor belt and an upper conveyor belt are provided, and the servo motor body, the first rotating roller, the first belt, the second rotating roller, the lower conveyor belt, the first gear, the second gear, the third rotating roller, the second belt, the fourth rotating roller, and the upper conveyor belt cooperate with each other to facilitate the automatic conveying and unloading of the TPU film;

[0020] Furthermore, protective teeth are provided. Several rubber protective teeth are provided on the lower conveyor belt and the upper conveyor belt to increase the grip on the TPU film body, prevent it from sliding or deflecting during transportation, and also protect the film surface from being scratched or worn.

[0021] 2. A hydraulic cylinder body is provided, and the TPU film is trimmed by cooperating with two hydraulic cylinder bodies, a movable frame and a cutting blade;

[0022] Furthermore, a pressing roller is provided, and the TPU film to be trimmed is fixed by the cooperation of the movable frame, the two fixed plates and the pressing roller, thereby ensuring the accuracy and stability of the cutting and preventing the TPU film from deflecting or wrinkling during the cutting process;

[0023] Furthermore, a screw is provided, and by rotating the motor body, the screw, the threaded sleeve, the groove, the slide plate, the chute, the pressure roller and the guide rod cooperate with each other, so that the height of the pressure roller can be precisely adjusted to adapt to TPU films of different thicknesses, thereby ensuring the flexibility and efficiency of the TPU film trimming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0025] Figure 2 This is a partial structural diagram of the film unwinding rack, guide rack, conveyor roller and support rack of the utility model;

[0026] Figure 3 This is a schematic diagram of the partial structure of the lower conveyor belt and the upper conveyor belt of the utility model;

[0027] Figure 4 This is a schematic diagram of the partial structure of the fixing frame of the utility model;

[0028] Figure 5 This is a schematic diagram of the cross-sectional structure of the fixing plate of the utility model;

[0029] Figure 6 This is a schematic diagram of the local structure of the pressure roller of the utility model;

[0030] Figure 7 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0031] In the figure: 1. Trimming machine base; 2. Film unloading rack; 3. Guide rack; 4. Conveyor roller; 5. Fixed plate; 6. Support frame; 7. Servo motor body; 8. First rotating roller; 9. First belt; 10. Second rotating roller; 11. Lower conveyor belt; 12. First gear; 13. Second gear; 14. Third rotating roller; 15. Upper conveyor belt; 16. Protective teeth; 17. Groove; 18. Guide rod; 19. Fixed frame; 20. Hydraulic cylinder body; 21. Moving frame; 22. Rotating motor body; 23. Screw; 24. Threaded sleeve; 25. Pressing roller; 26. Slide plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 7 , the utility model provides the following technical solutions:

[0034] Example 1: In order to solve the problem that a trimming machine for TPU film processing on the market is used, but the trimming blade is set between the unwinding roller and the winding roller. Since the TPU film is relatively soft, it is difficult for the TPU film to continue to connect with the winding roller after trimming is completed, thereby interrupting the subsequent trimming, making the conveying and unloading effect poor, and unable to prevent it from sliding or deflecting during the conveying process, which easily causes wear on the film surface. Please refer to the attached Figure 1 -Attached Figure 3 and attached Figure 7, including a trimming machine base 1, a film unloading rack 2 is fixedly installed behind the trimming machine base 1, and the outer wall of the film unloading rack 2 is sleeved with a TPU film body, and the inner wall of the film unloading rack 2 is fixedly connected to the guide rack 3 behind the trimming machine base 1, and three guide rollers are provided on the inner wall of the guide rack 3. Two support frames 6 are fixedly installed on the top of the back of the trimming machine base 1; it also includes: a servo motor body 7 is provided on the left side behind the support frame 6, and the output shaft of the servo motor body 7 is fixedly installed with a first rotating roller 8 through a coupling, and the end of the first rotating roller 8 passes through the support frame 6, and the outer wall of the right side of the first rotating roller 8 A first belt 9 is mounted on the outer wall behind the first belt 9, and a second rotating roller 10 is inserted through the inner wall. A lower conveyor belt 11 is mounted on the outer wall of the second rotating roller 10 and the first rotating roller 8. A first gear 12 is mounted on the outer wall to the right of the second rotating roller 10. A second gear 13 is installed on top of the first gear 12. A third rotating roller 14 is installed inside the second gear 13, and the end of the third rotating roller 14 extends through the support frame 6. A second belt is mounted on the outer wall to the right of the third rotating roller 14, and a fourth rotating roller is inserted through the inner wall behind the second belt. An upper conveyor belt 15 is mounted on the outer walls of the third and fourth rotating rollers. The upper conveyor belt 15 is arranged parallel to the lower conveyor belt 11. The outer walls of the upper and lower conveyor belts 15 and 11 are provided with a plurality of rubber protective teeth 16. The first gear 12 and the second gear 13 are meshed, and the second gear 13 and the third rotating roller 14 are fixedly connected.

[0035] The staff pulls one end of the TPU film body installed on the film unloading rack 2, so that one end of the TPU film body passes through the three guide rollers on the guide rack 3, and then the TPU film enters between the lower conveyor belt 11, the upper conveyor belt 15 and the two conveyor rollers 4, and then passes through the pressure roller 25 and the cutting blade set under the mobile rack 21. The servo motor body 7 is started through the external control panel, so that the output shaft of the servo motor body 7 drives the first rotating roller 8 to rotate, so that the first rotating roller 8 drives the second rotating roller 10 connected to the first belt 9 to rotate synchronously, so that the first rotating roller 8 and the second rotating roller 10 drive the lower conveyor belt 11 to move, and in the process of the rotation of the first rotating roller 8, the first gear 12 and the second gear 13 are driven to engage and rotate, so that the second gear 13 drives The third rotating roller 14 is driven to rotate, so that the third rotating roller 14 drives the fourth rotating roller connected to the second belt to rotate synchronously, so that the third rotating roller 14 and the fourth rotating roller drive the upper conveyor belt 15 to move, so that the lower conveyor belt 11 and the upper conveyor belt 15 move similarly, which is convenient for moving and conveying the TPU film body. A number of rubber protective teeth 16 are provided on the lower conveyor belt 11 and the upper conveyor belt 15, thereby increasing the grip on the TPU film body and preventing it from sliding or deflecting during transportation, and also protecting the film surface from being scratched or worn, so that the TPU film is conveniently conveyed to the cutting blade set below the movable frame 21 where the cutting edge is required, thereby improving the efficiency of subsequent cutting, thereby realizing automatic conveying and unloading of the TPU film.

[0036] Example 2: The TPU film can be fixedly trimmed. Please refer to the attached Figure 1 -Attached Figure 2 and attached Figure 4 -Attached Figure 6The top of the trimming machine base 1 is located in front of the support frame 6 and is provided with two conveying rollers 4. A fixed frame 19 is fixedly installed on the top of the front of the trimming machine base 1. Two hydraulic cylinder bodies 20 are provided on the top of the fixed frame 19. A mobile frame 21 is fixedly installed on the output end of the hydraulic cylinder body 20. A cutting blade is provided on the inner top wall of the mobile frame 21. Fixed plates 5 are fixedly installed on the back of both sides of the mobile frame 21. A groove 17 is opened inside the fixed plate 5, and a slide groove is opened on the front and back sides of the fixed plate 5 on the inner wall of the groove 17. A rotating motor body 22 is provided on the top of the fixed plate 5 on the right side of the mobile frame 21. The output shaft of the rotating motor body 22 is fixedly installed with a screw 23 through a coupling, and the end of the screw 23 passes through the fixed plate 5. The outer wall of the screw 23 is provided with a threaded sleeve 24. Slide plates 26 are passed through the front and back sides of the threaded sleeve 24, and the end of the slide plate 26 passes through the slide groove. A pressure roller 25 is provided on the left side of the threaded sleeve 24. A limiting groove is provided on the top of the trimming machine base 1 below the fixed plate 5. Threaded sleeves 24 are fixedly mounted on both sides of the pressure roller 25. A guide rod 18 is passed through the interior of the threaded sleeve 24 on the left side of the pressure roller 25. The threaded sleeve 24 is in movable connection with the screw rod 23 and the groove 17. The threaded sleeve 24 is in close contact with the slide plate 26, and the slide plate 26 is in sliding connection with the chute.

[0037] When the TPU film is moved and transported to a suitable length and needs to be trimmed, the external control panel activates the two hydraulic cylinder bodies 20, so that the output end of the hydraulic cylinder body 20 simultaneously drives the moving frame 21 to move downward, so that the moving frame 21 drives the cutting blade to trim the TPU film below. In the process of the moving frame 21 driving the cutting blade to move downward, the moving frame 21 drives the pressing rollers 25 provided on the inner walls of the two fixed plates 5 to move downward, so that the pressing rollers 25 press on the TPU film, fix the trimmed TPU film, ensure the accuracy and stability of the cutting, and prevent the TPU film from deflecting or wrinkling during the cutting process;

[0038] According to the thickness of the TPU film, the staff starts the rotating motor body 22 through the external control panel, so that the output end of the rotating motor body 22 drives the screw 23 to rotate, so that the screw 23 drives the threaded sleeve 24 to move vertically in the groove 17, and drives the slide plate 26 to slide in the corresponding slide groove during the movement of the threaded sleeve 24, thereby increasing the stability of the movement of the threaded sleeve 24, so that the threaded sleeve 24 drives the pressure roller 25 to move, and drives the threaded sleeve 24 connected on the left to move on the guide rod 18 during the movement of the pressure roller 25, thereby increasing the stability and guiding effect of the movement of the pressure roller 25, thereby accurately adjusting the height of the pressure roller 25 to adapt to TPU films of different thicknesses, ensuring the flexibility and efficiency of the TPU film trimming process.

[0039] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A trimming machine for processing TPU film, comprising a trimming machine base (1), a film unloading rack (2) fixedly mounted on the rear of the trimming machine base (1), and an outer wall of the film unloading rack (2) is sleeved with a TPU film body, a guide rack (3) fixedly connected to the inner wall of the film unloading rack (2) on the rear of the trimming machine base (1), three guide rollers being arranged on the inner wall of the guide rack (3), and two support racks (6) fixedly mounted on the top of the rear of the trimming machine base (1); It is characterized in that Also includes: A servo motor body (7) is provided on the left side behind the support frame (6), and a first rotating roller (8) is fixedly installed on the output shaft of the servo motor body (7) through a coupling, and the end of the first rotating roller (8) passes through the support frame (6), and a first belt (9) is provided on the outer wall of the right side of the first rotating roller (8), and a second rotating roller (10) is passed through the inner wall behind the first belt (9), and a lower conveyor belt (11) is provided on the outer walls of the second rotating roller (10) and the first rotating roller (8); The top of the trimming machine base (1) is located on the front of the support frame (6) and is provided with two conveying rollers (4). A fixed frame (19) is fixedly installed on the top of the front of the trimming machine base (1). Two hydraulic cylinder bodies (20) are provided on the top of the fixed frame (19). A movable frame (21) is fixedly installed on the output end of the hydraulic cylinder body (20). A cutting blade is provided on the inner top wall of the movable frame (21).

2. The TPU film processing trimming machine according to claim 1, characterized in that: The outer wall on the right side of the second rotating roller (10) is provided with a first gear (12), the top of the first gear (12) is provided with a second gear (13), the interior of the second gear (13) is provided with a third rotating roller (14), and the end of the third rotating roller (14) passes through the support frame (6), the outer wall on the right side of the third rotating roller (14) is provided with a second belt, and the inner wall behind the second belt passes through a fourth rotating roller, and the outer walls of the third rotating roller (14) and the fourth rotating roller are provided with an upper conveyor belt (15).

3. The TPU film processing trimming machine according to claim 2, characterized in that: The upper conveyor belt (15) and the lower conveyor belt (11) are arranged parallel to each other, and the outer walls of the upper conveyor belt (15) and the lower conveyor belt (11) are provided with a plurality of protective teeth (16), and the protective teeth (16) are arranged to be made of rubber.

4. The TPU film processing trimming machine according to claim 1, characterized in that: A fixed plate (5) is fixedly installed at the rear of both sides of the movable frame (21), a groove (17) is opened inside the fixed plate (5), and a slide groove is opened on the inner wall of the groove (17) on the front and rear sides of the fixed plate (5). A rotating motor body (22) is provided on the top of the fixed plate (5) on the right side of the movable frame (21), and a screw (23) is fixedly installed on the output shaft of the rotating motor body (22) through a coupling, and the end of the screw (23) passes through the fixed plate (5), and a threaded sleeve (24) is provided on the outer wall of the screw (23). Slide plates (26) are passed through the front and rear sides of the threaded sleeve (24), and the end of the slide plate (26) passes through the slide groove. A pressure roller (25) is provided on the left side of the threaded sleeve (24), and a limiting groove is provided on the top of the trimming machine base (1) below the fixed plate (5).

5. The TPU film processing trimming machine according to claim 4, characterized in that: Threaded sleeves (24) are fixedly mounted on both sides of the pressure roller (25), and a guide rod (18) passes through the interior of the threaded sleeve (24) on the left side of the pressure roller (25).

6. The TPU film processing trimming machine according to claim 2, characterized in that: The first gear (12) and the second gear (13) are in meshing connection, and the second gear (13) and the third rotating roller (14) are in fixed connection.

7. The TPU film processing trimming machine according to claim 4, characterized in that: The threaded sleeve (24) is movably connected to the screw rod (23) and the groove (17), the threaded sleeve (24) is tightly fitted to the slide plate (26), and the slide plate (26) is slidably connected to the slide groove.

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