A TPU film punching device

Abstract

The utility model discloses a kind of TPU film punching device, including base, the base upside is equipped with hydraulic cylinder by vertical frame, multiple punching blocks and punch head are equipped with in hydraulic cylinder lower end by lifting support and positioning mechanism, base upside is equipped with punching table, fixed stand and movable stand respectively, fixed stand upper end one side is equipped with locating seat by connecting shaft rotation, locating seat one end is equipped with first plug-in slot, movable stand upper end one side is equipped with second plug-in slot, and first plug-in slot and second plug-in slot between transversely plug-in have winding drum, TPU film belt is wound between the two winding drums of the utility model, it is rotated by motor and gear set driving winding drum adjustment, to facilitate TPU film horizontal transmission to punching station on punching table to carry out continuous punching processing, feeding continuity is stronger, it is favorable to improve the efficiency of TPU film punching processing.

Description

Technical Field

[0001] This utility model relates to the field of TPU film punching technology, specifically a TPU film punching device. Background Technology

[0002] TPU film (thermoplastic polyurethane elastomer film) is a thermoplastic polymer material polymerized from polyols and diisocyanates. It is widely used in paint protection film, footwear, bags, medical protective equipment, automotive interiors, and waterproof clothing. Its hardness ranges from 60HA to 85HD, its temperature resistance covers -40℃ to 120℃, and its thickness is typically 0.01-2mm. It is classified into polyester, polyether, and polycaprolactone types. Domestic manufacturers such as Shanghai TPU Film Co., Ltd. and Siyang Lantian New Materials Co., Ltd. offer 11 sub-categories of products, covering transparent films, waterproof and breathable films, and hot melt adhesive films. TPU film requires punching equipment for perforation during processing.

[0003] A film punching fixture with application number 202223130557.6 in the prior art includes a base, guide rods fixed on both sides of the top rear end of the base, and a bidirectional lead screw rotatably connected between the inner walls of both ends of the worktable. The outer wall of the bidirectional lead screw is threaded with two threaded sleeves. This solves the problems of inconvenient operation, low efficiency of film punching, and poor punching quality of the existing solution to a certain extent. For example, the process of fixing films of different specifications is cumbersome, and when punching at different positions of the film, the position of the film needs to be manually adjusted, which will cause deviation in accuracy and result in poor product quality. However, the film loading is inconvenient and the continuity is poor, which affects the efficiency of TPU film punching processing. Utility Model Content

[0004] The purpose of this invention is to provide a TPU film punching device to solve the problems of inconvenient film feeding and poor continuity in the prior art, which affect the efficiency of TPU film punching.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a TPU film punching device, comprising a base, a hydraulic cylinder mounted on the upper side of the base via an upper bracket, a plurality of punching blocks mounted on the lower end of the hydraulic cylinder via a lifting bracket and a positioning mechanism, and a punching head mounted on the lower side of the punching blocks, a punching platform, a fixed stand and a movable stand respectively mounted on the upper side of the base, a positioning seat rotatably mounted on one side of the upper end of the fixed stand via a connecting shaft, a first insertion slot at one end of the positioning seat, a second insertion slot at one side of the upper end of the movable stand, and a take-up roller transversely inserted between the first insertion slot and the second insertion slot, and a TPU film strip wound between the two take-up rollers.

[0006] Furthermore, the fixed support and the movable support are symmetrically arranged in two sets about the punching platform, and the punching platform has multiple through holes in the middle.

[0007] Furthermore, one end of the connecting shaft is connected to a motor via a gear set, and the motor is fixedly installed on the outer wall of the fixed frame.

[0008] Furthermore, the first insertion slot has a threaded first locking bolt on its side wall, and the second insertion slot has multiple rollers on its inner wall.

[0009] Furthermore, a limiting groove is provided on the upper side of one end of the base, and a screw is rotatably provided in the limiting groove. The lower end of the movable stand is threadedly connected to the screw through a limiting slider, and an adjusting handle and a second locking bolt are provided on one end of the screw.

[0010] Furthermore, the positioning mechanism includes a locking bracket that is laterally inserted into one end of the lifting bracket, one end of the locking bracket is provided with a pressure plate, and the outer wall of the lifting bracket is threaded with a third locking bolt.

[0011] Furthermore, both the lifting bracket and the punch block are provided with a snap-fit ​​block at one end, and both the punch block and the pressure plate are provided with a snap-fit ​​groove on one side that engages with the snap-fit ​​block.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model features a punching platform, a fixed stand, and a movable stand on the upper side of the base. A positioning seat is rotatably mounted on one side of the upper end of the fixed stand via a connecting shaft. One end of the positioning seat has a first insertion slot. A second insertion slot is provided on one side of the upper end of the movable stand. A take-up roller is horizontally inserted between the first and second insertion slots. The TPU film to be punched is wound between the two take-up rollers. The take-up rollers are rotated and adjusted by a motor and gear set, facilitating the horizontal transfer of the TPU film from the punching platform to the punching station. Then, a hydraulic cylinder drives the punching head to reciprocate and adjust for continuous punching. This design offers convenient feeding and strong continuity, improving the efficiency of TPU film punching.

[0013] This utility model features a limiting groove on the upper side of one end of the base, with a screw rotating inside the limiting groove. The lower end of the movable stand is threadedly connected to the screw via a limiting slider. One end of the screw is equipped with an adjustment handle and a second locking bolt, allowing the limiting slider and the movable stand to be moved and adjusted by rotating the screw. This facilitates the adjustment of the distance between the first and second insertion slots, thereby making it easier to disassemble and assemble the winding roller.

[0014] In this utility model, the lower end of the hydraulic cylinder is provided with multiple punched blocks through a lifting bracket and a positioning mechanism. The positioning mechanism includes a locking bracket that is horizontally inserted into one end of the lifting bracket. One end of the locking bracket is provided with a pressure plate. The outer wall of the lifting bracket is threaded with a third locking bolt. The horizontally moving locking bracket presses the pressure plate onto one end of the multiple punched blocks for horizontal clamping and fixing of the multiple punched blocks, and the third locking bolt is used to lock the moving locking bracket. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the lifting support structure of this utility model; Figure 3 This is a schematic diagram of the punch block structure of this utility model; Figure 4 This is a schematic diagram of the fixed support structure of this utility model; Figure 5 This is a schematic diagram of the movable support structure of this utility model.

[0016] In the diagram: 1. Base; 2. Upper support; 3. Hydraulic cylinder; 4. Punching block; 5. Lifting support; 6. Punching head; 7. Fixed stand; 8. Positioning seat; 9. Rewinding roller; 10. Movable stand; 11. Limiting slider; 12. Screw; 13. Adjusting handle; 14. Limiting groove; 15. Second locking bolt; 16. Punching table; 17. Pressure plate; 18. Locking support; 19. Third locking bolt; 20. Snap-fit ​​groove; 21. Snap-fit ​​block; 22. Connecting shaft; 23. First locking bolt; 24. First insertion groove; 25. Gear set; 26. Motor; 27. Second insertion groove; 28. Roller. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5In this embodiment of the present invention, a TPU film punching device includes a base 1. A hydraulic cylinder 3 and a PLC control cabinet are mounted on the upper side of the base 1 via an upper bracket 2. Multiple punching blocks 4 are mounted on the lower end of the hydraulic cylinder 3 via a lifting bracket 5 and a positioning mechanism. A punching head 6 is located on the lower side of each punching block 4. A punching platform 16, a fixed support 7, and a movable support 10 are respectively mounted on the upper side of the base 1. A positioning seat 8 is rotatably mounted on one side of the upper end of the fixed support 7 via a connecting shaft 22. One end of the connecting shaft 22 is connected to a motor 26 via a gear set 25, and the motor 26 is fixedly mounted on the outer wall of the fixed support 7. A first... The first insertion slot 24 and the second insertion slot 27 are provided on one side of the upper end of the movable stand 10. A take-up roller 9 is horizontally inserted between the first insertion slot 24 and the second insertion slot 27. A TPU film strip is wound between the two take-up rollers 9, so that the take-up roller 9 can be rotated and adjusted by the motor 26 and the gear set 25. This facilitates the horizontal transfer of the TPU film to the punching station on the punching table 16. Then, the punching block 4 and the punching head 6 are reciprocated and adjusted by the hydraulic cylinder 3 to continuously punch the TPU film at different positions. Moreover, the feeding is convenient and the continuity is strong, which helps to improve the efficiency of TPU film punching processing.

[0019] like Figure 1 , Figure 4 and Figure 5 As shown, in order to facilitate the longitudinal rotation of the take-up roller 9 to unwind the TPU film, two sets of fixed support 7 and movable support 10 are symmetrically arranged about the punching table 16. The punching table 16 has multiple through holes in the middle. The first insertion groove 24 has a first locking bolt 23 threaded on its side wall to lock one end of the take-up roller 9 inserted into the first insertion groove 24. The inner wall of the second insertion groove 27 has multiple rollers 28, so that one end of the take-up roller 9 can be rotated and adjusted relative to the second insertion groove 27. This makes it easy to rotate one end of the take-up roller 9 to be set on the upper side of one end of the movable support 10, which facilitates the longitudinal rotation of the take-up roller 9 to unwind the TPU film.

[0020] like Figure 1 and Figure 5 As shown, in order to facilitate the disassembly and assembly of the winding drum 9, a limiting slide groove 14 is provided on the upper side of one end of the base 1. A screw 12 is rotatably provided in the limiting slide groove 14. The lower end of the movable stand 10 is threadedly connected to the screw 12 through the limiting slider 11. One end of the screw 12 is provided with an adjusting handle 13 and a second locking bolt 15, so that the limiting slider 11 and the movable stand 10 can be moved and adjusted by rotating the screw 12, thereby facilitating the adjustment of the distance between the first insertion groove 24 and the second insertion groove 27, and thus facilitating the disassembly and assembly of the winding drum 9.

[0021] like Figure 1 , Figure 2 and Figure 3As shown, in order to laterally clamp and fix multiple punch blocks 4, the positioning mechanism also includes a locking bracket 18 that is laterally inserted into one end of the lifting bracket 5. One end of the locking bracket 18 is provided with a pressure plate 17, and the outer wall of the lifting bracket 5 is threaded with a third locking bolt 19. The transverse locking bracket 18 presses the pressure plate 17 onto one end of multiple punch blocks 4 for laterally clamping and fixing multiple punch blocks 4, and uses the third locking bolt 19 to lock the moving locking bracket 18. Moreover, multiple punch blocks 4 can be disassembled and fixed, so as to facilitate switching different numbers of punch blocks 4 for punching.

[0022] like Figure 2 and Figure 3 As shown, in order to improve the stability of the installation and fixing of the punch block 4, a snap-fit ​​block 21 is provided at one end of both the lifting bracket 5 and the punch block 4. A snap-fit ​​groove 20 that engages with the snap-fit ​​block 21 is provided on one side of both the punch block 4 and the pressure plate 17, which facilitates the improvement of the stability of the lateral insertion between the punch block 4, the lifting bracket 5 and the pressure plate 17.

[0023] The working principle and usage process of this utility model are as follows: In use, the TPU film to be punched is wound between two take-up rollers 9. Then, the take-up rollers 9 are rotated and adjusted by the motor 26 and the gear set 25, so that the TPU film can be horizontally conveyed to the punching station on the punching table 16. Then, the punching block 4 and the punching head 6 are reciprocated and adjusted by the hydraulic cylinder 3 to continuously punch the TPU film at different positions. Moreover, the feeding is convenient and the continuity is strong, which helps to improve the efficiency of TPU film punching processing.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A TPU film punching device, comprising a base (1), characterized in that: The upper side of the base (1) is provided with a hydraulic cylinder (3) via an upper bracket (2). The lower end of the hydraulic cylinder (3) is provided with multiple punching blocks (4) via a lifting bracket (5) and a positioning mechanism. The lower side of the punching blocks (4) is provided with punching heads (6). The upper side of the base (1) is provided with a punching platform (16), a fixed stand (7) and a movable stand (10). The upper side of the fixed stand (7) is provided with a positioning seat (8) via a connecting shaft (22). One end of the positioning seat (8) is provided with a first insertion groove (24). The upper side of the movable stand (10) is provided with a second insertion groove (27). A take-up roller (9) is horizontally inserted between the first insertion groove (24) and the second insertion groove (27). A TPU film strip is wound between the two take-up rollers (9).

2. The TPU film punching device according to claim 1, characterized in that: The fixed support (7) and the movable support (10) are symmetrically arranged in two sets about the punching platform (16), and the punching platform (16) has multiple through holes in the middle.

3. The TPU film punching device according to claim 1, characterized in that: One end of the connecting shaft (22) is connected to a motor (26) via a gear set (25), and the motor (26) is fixedly installed on the outer wall of the fixed frame (7).

4. The TPU film punching device according to claim 1, characterized in that: The first insertion groove (24) has a first locking bolt (23) threaded on its side wall, and the second insertion groove (27) has multiple rollers (28) on its inner wall.

5. The TPU film punching device according to claim 1, characterized in that: The base (1) has a limiting groove (14) on one upper side, and a screw (12) is rotatably provided in the limiting groove (14). The lower end of the movable stand (10) is threadedly connected to the screw (12) through a limiting slider (11). One end of the screw (12) is provided with an adjustment handle (13) and a second locking bolt (15).

6. The TPU film punching device according to claim 1, characterized in that: The positioning mechanism includes a locking bracket (18) that is laterally inserted into one end of the lifting bracket (5). One end of the locking bracket (18) is provided with a pressure plate (17), and the outer wall of the lifting bracket (5) is threaded with a third locking bolt (19).

7. A TPU film punching device according to claim 6, characterized in that: The lifting bracket (5) and the punch block (4) are each provided with a snap-fit ​​block (21) at one end, and the punch block (4) and the pressure plate (17) are each provided with a snap-fit ​​groove (20) that engages with the snap-fit ​​block (21) on one side.

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