TPU film cutting device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU ZHENGHONG PLASTIC NEW MATERIAL CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-08-07
AI Technical Summary
[0004]本实用新型要解决的技术问题是:现有技术中存在不同厚度薄膜裁切时缺乏下压调节导致裁切质量问题的缺点,为此我们提出一种TPU薄膜裁切设备
[0012] In this invention, the operator pushes the adjusting rod downwards, causing the adjusting rod to drive the pressure roller to fit against the film to be cut. After adjusting the appropriate position, the operator rotates the rotating column, causing the rotating column to drive the push block to gradually contact the thicker end of the arc-shaped block. The arc-shaped block pushes the push block to drive the insert rod to be inserted into the interior of the limiting hole, thus limiting the position of the pressure roller and completing the downward pressing action.
Smart Images

Figure CN224601801U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of TPU film processing technology, and in particular to a TPU film cutting device. Background Technology
[0002] TPU film, as a high-performance elastomer material, has been widely used in many fields due to its excellent physical properties, such as high elasticity, high strength, wear resistance, oil resistance, aging resistance, and good biocompatibility.
[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: In actual production, TPU films have a wide variety of thickness specifications, ranging from extremely thin tens of micrometers to relatively thick several millimeters. Existing TPU film cutting equipment generally has the drawback of not being able to effectively adjust the downward pressure when cutting films of different thicknesses. When cutting thinner films, because the downward pressure of the equipment is fixed and often too large, the excessive pressure will cause the film to be over-deformed during the cutting process, resulting in defects such as wavy wrinkles and rough edges on the cut edges, which seriously affects the appearance quality and dimensional accuracy of the film. Utility Model Content
[0004] The technical problem to be solved by this invention is that the existing technology has the disadvantage of lacking pressure adjustment when cutting films of different thicknesses, which leads to cutting quality problems. To address this, we propose a TPU film cutting device.
[0005] To achieve the above objectives, this application adopts the following technical solution: a TPU film cutting device, comprising a cutting device body, a driving mechanism mounted on the top of the cutting device body, a support frame fixedly connected to both ends of one side of the driving mechanism, a fixed block fixedly connected to the side of the support frame away from the driving mechanism, a fixed column fixedly connected to the side of the fixed block away from the support frame, a rotating column rotatably connected inside the fixed column, an adjusting rod slidably connected inside the rotating column, a bottom block rotatably connected to the bottom of the adjusting rod, a pressure roller mounted on one end of the bottom block, several limiting holes opened on both sides of the adjusting rod, arc-shaped blocks fixedly connected to both sides inside the fixed column, adjusting grooves opened on both sides of the rotating column, a push block slidably connected inside the adjusting groove, and an insert rod fixedly connected to the side of the push block near the inside of the adjusting groove.
[0006] Preferably, the size of the insertion rod is adapted to the size of the defining hole, and the surface of the insertion rod is inserted into the interior of the defining hole.
[0007] Preferably, both ends of the adjustment groove are provided with sliding grooves, and both ends of the push block are fixedly connected with sliding blocks, and the surface of the sliding block is slidably connected to the inside of the sliding groove.
[0008] Preferably, a return spring is fixedly connected to the side of the push block near the insertion rod, and the side of the return spring away from the push block is fixedly connected to the inside of the adjustment groove.
[0009] Preferably, the fixed column has two annular grooves inside, and two annular blocks are fixedly connected to the outer diameter surface of the rotating column. The surface of the annular blocks is slidably connected to the inside of the annular grooves.
[0010] Preferably, a return spring is fixedly connected to the bottom of the annular block, and the bottom of the return spring is fixedly connected to the bottom end inside the fixed column.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] In this invention, the operator pushes the adjusting rod downwards, causing the adjusting rod to drive the pressure roller to fit against the film to be cut. After adjusting the appropriate position, the operator rotates the rotating column, causing the rotating column to drive the push block to gradually contact the thicker end of the arc-shaped block. The arc-shaped block pushes the push block to drive the insert rod to be inserted into the interior of the limiting hole, thus limiting the position of the pressure roller and completing the downward pressing action. Attached Figure Description
[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This is a schematic diagram of a partial explosion structure of the present invention;
[0016] Figure 3 This is a schematic diagram of the internal structure of the fixed column of this utility model;
[0017] Figure 4 This is a partial cross-sectional view of the rotating column of this utility model;
[0018] Figure 5 This is a schematic diagram of the partial explosion structure of the fixed column of this utility model.
[0019] Legend: 1. Cutting device body; 2. Drive mechanism; 3. Support frame; 4. Fixing block; 5. Fixing column; 6. Rotating column; 7. Adjusting rod; 8. Bottom block; 9. Pressure roller; 10. Limiting hole; 11. Arc block; 12. Adjusting groove; 13. Push block; 14. Insert rod; 15. Slide groove; 16. Sliding block; 17. Return spring; 18. Annular groove; 19. Annular block; 20. Return spring. Detailed Implementation
[0020] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.
[0021] Reference Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a TPU film cutting device, including a cutting device body 1, a driving mechanism 2 installed on the top of the cutting device body 1, a support frame 3 fixedly connected to both ends of one side of the driving mechanism 2, a fixed block 4 fixedly connected to the side of the support frame 3 away from the driving mechanism 2, a fixed column 5 fixedly connected to the side of the fixed block 4 away from the support frame 3, a rotating column 6 rotatably connected inside the fixed column 5, an adjusting rod 7 slidably connected inside the rotating column 6, a bottom block 8 rotatably connected to the bottom of the adjusting rod 7, a pressure roller 9 installed at one end of the bottom block 8, several limiting holes 10 opened on both sides of the adjusting rod 7, arc-shaped blocks 11 fixedly connected to both sides of the inside of the fixed column 5, an adjusting groove 12 opened on both sides of the rotating column 6, a push block 13 slidably connected inside the adjusting groove 12, and an insert rod 14 fixedly connected to the side of the push block 13 near the inside of the adjusting groove 12;
[0022] Specifically: The worker pushes the adjusting rod 7 downwards, causing the adjusting rod 7 to drive the pressure roller 9 to fit against the film to be cut. After adjusting the appropriate position, the worker rotates the rotating column 6, causing the rotating column 6 to drive the push block 13 to gradually contact the thicker end of the arc block 11. The arc block 11 pushes the push block 13 to drive the insertion rod 14 to be inserted into the interior of the limiting hole 10, thus limiting the position of the pressure roller 9 and completing the downward pressing action.
[0023] Reference Figure 2 and Figure 4 As shown, in this embodiment: the size of the insertion rod 14 is adapted to the size of the limiting hole 10, and the surface of the insertion rod 14 is inserted into the interior of the limiting hole 10;
[0024] Specifically, the insertion rod 14 is precisely inserted into the limiting hole 10 to form a stable connection structure, ensuring that the pressure roller 9 will not move arbitrarily after adjustment, thus maintaining the stability and accuracy of the cutting operation. This insertion design is not only simple and easy to implement, but also greatly improves the reliability and durability of the cutting equipment.
[0025] Reference Figure 4 As shown in this embodiment: both ends of the adjusting groove 12 are provided with sliding grooves 15, and both ends of the push block 13 are fixedly connected with sliding blocks 16, and the surface of the sliding block 16 is slidably connected to the inside of the sliding groove 15.
[0026] Specifically, the sliding block 16 can slide smoothly inside the groove 15. This design allows the push block 13 to move smoothly and precisely when driven by the rotating column 6. The groove 15 provides a clear movement path for the sliding block 16, ensuring that the movement trajectory of the push block 13 is accurate.
[0027] Reference Figure 4 As shown, in this embodiment: a return spring 17 is fixedly connected to the side of the push block 13 near the insertion rod 14, and the side of the return spring 17 away from the push block 13 is fixedly connected to the inside of the adjustment groove 12.
[0028] Specifically, the design of the return spring 17 has multiple functions. First, it can provide continuous elastic force to ensure that the push block 13 can automatically return to the initial position when it is not subjected to external force, so as to prepare for the next cutting operation. Second, the presence of the return spring 17 enhances the stability of the push block 13 movement. Even when subjected to external interference, it can quickly return to the correct position, thereby ensuring the overall stability and accuracy of the cutting equipment.
[0029] Reference Figure 5 As shown in this embodiment: the interior of the fixed column 5 is provided with two annular grooves 18, and the outer diameter surface of the rotating column 6 is fixedly connected with two annular blocks 19, and the surface of the annular blocks 19 is slidably connected to the interior of the annular grooves 18.
[0030] Specifically, the design of the annular groove 18 and the annular block 19 ingeniously achieves the rotational stability and precise control of the rotating column 6. The annular groove 18 provides a clear sliding track for the annular block 19, ensuring that the rotating column 6 will not deviate from the predetermined path during rotation. This design not only improves the operating accuracy of the cutting equipment, but also effectively reduces the errors caused by rotational instability.
[0031] Reference Figure 5 As shown in this embodiment: a return spring 20 is fixedly connected to the bottom of the annular block 19, and the bottom of the return spring 20 is fixedly connected to the bottom end inside the fixed column 5.
[0032] Specifically, the return spring 20 further enhances the reset capability of the rotating column 6 after rotation. When the external force disappears, the return spring 20 can use its elasticity to push the ring block 19 and the rotating column 6 to quickly return to the initial position. This not only improves the automation level of the equipment, but also effectively shortens the cutting cycle and improves production efficiency.
[0033] Working principle: The operator pushes the adjusting rod 7 downwards, causing the adjusting rod 7 to drive the pressure roller 9 to fit against the film to be cut. After adjusting the appropriate position, the operator rotates the rotating column 6, causing the rotating column 6 to drive the push block 13 to gradually contact the thicker end of the arc block 11. The arc block 11 pushes the push block 13 to drive the insertion rod 14 to be inserted into the limiting hole 10, thus limiting the position of the pressure roller 9 and completing the downward pressing action.
[0034] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A TPU film cutting device, comprising a cutting device body (1), characterized in that: The top of the cutting device body (1) is equipped with a drive mechanism (2). Both ends of one side of the drive mechanism (2) are fixedly connected to a support frame (3). A fixed block (4) is fixedly connected to the side of the support frame (3) away from the drive mechanism (2). A fixed column (5) is fixedly connected to the side of the fixed block (4) away from the support frame (3). A rotating column (6) is rotatably connected inside the fixed column (5). An adjusting rod (7) is slidably connected inside the rotating column (6). A bottom block (8) is rotatably connected to the bottom of the adjusting rod (7). A pressure roller (9) is installed at one end of the bottom block (8). Several limiting holes (10) are opened on both sides of the adjusting rod (7). Arc blocks (11) are fixedly connected to both sides inside the fixed column (5). An adjusting groove (12) is opened on both sides of the rotating column (6). A push block (13) is slidably connected inside the adjusting groove (12). An insert rod (14) is fixedly connected to the side of the push block (13) close to the inside of the adjusting groove (12).
2. The TPU film cutting equipment according to claim 1, characterized in that: The size of the insertion rod (14) is adapted to the size of the limiting hole (10), and the surface of the insertion rod (14) is inserted into the interior of the limiting hole (10).
3. The TPU film cutting equipment according to claim 1, characterized in that: Both ends of the adjustment groove (12) are provided with sliding grooves (15), and both ends of the push block (13) are fixedly connected with sliding blocks (16). The surface of the sliding block (16) is slidably connected to the inside of the sliding groove (15).
4. The TPU film cutting equipment according to claim 1, characterized in that: A reset spring (17) is fixedly connected to the side of the push block (13) near the insert rod (14), and the side of the reset spring (17) away from the push block (13) is fixedly connected to the inside of the adjustment groove (12).
5. The TPU film cutting equipment according to claim 1, characterized in that: The fixed column (5) has two annular grooves (18) inside. The outer diameter surface of the rotating column (6) is fixedly connected to two annular blocks (19). The surface of the annular blocks (19) is slidably connected to the inside of the annular grooves (18).
6. The TPU film cutting device according to claim 5, characterized in that: The bottom of the annular block (19) is fixedly connected to a return spring (20), and the bottom of the return spring (20) is fixedly connected to the bottom end inside the fixed column (5).