TPU film drying device
By designing an adjustable air outlet cover structure, the problem that existing TPU film drying devices cannot adapt to the needs of films of different specifications is solved, enabling quick replacement and stable connection of the air outlet cover, and improving the film drying effect and efficiency.
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
- 2026-08-04
AI Technical Summary
The air outlet cover of the existing TPU film drying device is designed with a fixed specification, which cannot be quickly changed according to the needs of films with different thicknesses and widths, resulting in unsuitable air velocity distribution and affecting the drying effect of the film.
An adjustable air outlet cover structure was designed, which enables quick replacement of air outlet covers of different specifications through a sliding connection of an adjustment plate and a through block. A return spring and a thrust spring are used to ensure a stable connection, and a sliding groove and a guide block improve the stability of movement.
It enables quick replacement and secure connection of the air outlet cover, adapts to the wind speed requirements of different film specifications, avoids problems such as film vibration or incomplete drying, and improves the effect and efficiency of film drying.
Smart Images

Figure CN224588404U_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 drying device. Background Technology
[0002] In the production process of TPU film, the drying process is a key step to ensure film quality. Due to its excellent physical properties, such as high elasticity, high strength, wear resistance, and oil resistance, TPU film is widely used in many fields such as footwear, clothing, electronics, industry, and sports.
[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: the TPU film drying devices on the market generally have certain limitations in design, especially in the design of the air outlet cover. The air outlet cover of the existing drying device usually adopts a fixed specification design and is tightly connected to the main body of the equipment, making it impossible to quickly replace it with different specifications of air outlet cover according to different production needs. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing technology has different requirements for drying wind speed and air volume for TPU films of different thicknesses and widths. The fixed-size air outlet cover cannot adjust the air outlet area and wind speed distribution, which leads to the disadvantage that thin films may shake and deform due to excessive wind speed, while thick films may not dry thoroughly due to insufficient wind speed. To this end, we propose a TPU film drying device.
[0005] To achieve the above objectives, this application adopts the following technical solution: a TPU film drying device, comprising a drying device body, a drying mechanism disposed inside the drying device body, an air outlet cover slidably connected inside the drying mechanism, a straight groove being formed at the bottom of the air outlet cover, a limiting groove being formed on one side inside the straight groove, an adjusting groove being formed on one side of the drying mechanism, an adjusting plate slidably connected inside the adjusting groove, a through groove being formed at the top of the adjusting groove, and a through block being fixedly connected to the top of the adjusting plate.
[0006] Preferably, two return springs are fixedly connected to the side of the adjusting plate near the inside of the adjusting groove, and the side of the return spring away from the adjusting plate is fixedly connected to the inside of the adjusting groove.
[0007] Preferably, both ends of the adjustment groove are provided with sliding grooves, both ends of the adjustment plate are fixedly connected, and the surface of the plate is slidably connected to the interior of the sliding groove.
[0008] Preferably, sliding blocks are provided on both sides of the interior of the drying mechanism, and guide blocks are fixedly connected to both sides of the air outlet cover, with the surface of the guide blocks slidingly connected to the interior of the sliding blocks.
[0009] Preferably, the size of the through block is adapted to the size of the limiting groove, and the surface of the through block is inserted into the interior of the limiting groove.
[0010] Preferably, the drying mechanism has guide grooves and shrinkage grooves on both sides of the rear end, and a thrust spring is fixedly connected to the front end of the guide groove and shrinkage groove, and a push block is fixedly connected to the front end of the thrust spring.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] In this invention, the operator pushes the adjusting plate into the adjusting groove and simultaneously inserts the air outlet cover into the drying mechanism. After insertion, the operator pulls the adjusting plate, causing it to move the through block and insert it into the limiting groove, thus limiting the air outlet cover. This design allows the operator to replace air outlet covers of different specifications. 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 partial cross-sectional view of the present invention.
[0016] Figure 3 This is a partial cross-sectional view of the drying mechanism of this utility model;
[0017] Figure 4 This is a schematic diagram of the internal structure of the shrinkage groove of this utility model;
[0018] Figure 5 This is a partially enlarged structural schematic diagram of the present invention.
[0019] Legend: 1. Drying device body; 2. Drying mechanism; 3. Air outlet cover; 4. Straight groove; 5. Limiting groove; 6. Adjusting groove; 7. Adjusting plate; 8. Through groove; 9. Through block; 10. Reset spring; 11. Sliding groove; 12. Guide block; 13. Guide groove; 14. Shrinkage groove; 15. Push block; 16. Thrust spring; 17. Sliding block. 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 drying device, including a drying device body 1, a drying mechanism 2 is provided inside the drying device body 1, an air outlet cover 3 is slidably connected inside the drying mechanism 2, a straight groove 4 is provided at the bottom of the air outlet cover 3, a limiting groove 5 is provided on one side inside the straight groove 4, an adjustment groove 6 is provided on one side of the drying mechanism 2, an adjustment plate 7 is slidably connected inside the adjustment groove 6, a through groove 8 is provided at the top of the adjustment groove 6, and a through block 9 is fixedly connected to the top of the adjustment plate 7.
[0022] Specifically: The operator pushes the adjusting plate 7 into the adjusting groove 6 and inserts the air outlet cover 3 into the drying mechanism 2. After insertion, the operator pulls the adjusting plate 7, causing the adjusting plate 7 to move the through block 9 and insert the through block 9 into the limiting groove 5, thus limiting the air outlet cover 3. Through the above settings, the operator can replace the air outlet cover 3 with different specifications.
[0023] Reference Figure 5 As shown in this embodiment: two return springs 10 are fixedly connected to the side of the adjusting plate 7 near the inside of the adjusting groove 6, and the side of the return springs 10 away from the adjusting plate 7 is fixedly connected to the inside of the adjusting groove 6.
[0024] Specifically: When the operator pushes the adjusting plate 7 into the adjusting groove 6, the adjusting plate 7 squeezes the return spring 10 and causes the limit block 9 to be released from the limit groove 5. When the operator releases the adjusting plate 7, the return spring 10 returns to its original state and pushes the adjusting plate 7 to move towards the limit groove 5, so that the through block 9 automatically gets into the limit groove 5, thereby achieving quick and stable fixation of the air outlet cover 3.
[0025] Reference Figure 5 As shown in this embodiment: sliding grooves 11 are provided at both ends of the adjustment groove 6, and 12 is fixedly connected to both ends of the adjustment plate 7. The surface of 12 is slidably connected to the inside of the sliding groove 11.
[0026] Specifically, when the adjusting plate 7 moves inside the adjusting groove 6, the fixed connecting parts 12 at both ends slide along the inside of the sliding groove 11. This sliding connection design not only ensures the stability of the adjusting plate 7 during movement, but also makes its movement smoother and reduces the resistance caused by friction.
[0027] Reference Figure 5 As shown in this embodiment: sliding blocks 17 are provided on both sides inside the drying mechanism 2, and guide blocks 13 are fixedly connected to both sides of the air outlet cover 3. The surface of the guide block 13 is slidably connected to the inside of the sliding block 17.
[0028] Specifically: When the air outlet cover 3 opens and closes inside the drying mechanism 2, the guide blocks 13 on both sides slide along the inside of the sliding block 17. This sliding connection design further improves the stability of the air outlet cover 3 during movement, while ensuring that it can open and close smoothly along the predetermined trajectory, avoiding adverse effects caused by deviation or jamming.
[0029] Reference Figure 3 and Figure 5 As shown, in this embodiment: the size of the through block 9 is adapted to the size of the limiting groove 5, and the surface of the through block 9 is inserted into the interior of the limiting groove 5;
[0030] Specifically, when the through block 9 is accurately inserted into the limiting groove 5, this plug-in design not only achieves a stable connection between the two, but also effectively limits the range of movement of the through block 9 within the limiting groove 5, thereby ensuring the stability and accuracy of the entire device.
[0031] Reference Figure 4 As shown in this embodiment: both sides of the rear end of the drying mechanism 2 are provided with guide grooves and shrinkage grooves 14. A thrust spring 16 is fixedly connected to the front end of the guide groove and shrinkage groove 14, and a push block 15 is fixedly connected to the front end of the thrust spring 16.
[0032] Specifically: When the push block 15 is subjected to external force, it will move forward in the guide groove shrinkage groove 14, while compressing the thrust spring 16. This design allows the push block 15 to have a certain buffering effect when subjected to external force, thereby protecting the connected components from direct impact. When the external force disappears, the thrust spring 16 will release its stored elastic potential energy and push the push block 15 back to the initial position. This reset mechanism ensures the precise coordination and stable operation between the components inside the drying mechanism 2.
[0033] Working principle: The operator pushes the adjusting plate 7 into the adjusting groove 6 and inserts the air outlet cover 3 into the drying mechanism 2. After insertion, the operator pulls the adjusting plate 7, which moves the through block 9 and inserts it into the limiting groove 5, thus limiting the air outlet cover 3. This setting allows the operator to replace the air outlet cover 3 with different specifications.
[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 drying device comprising a drying device body (1), characterized in that: The drying device body (1) is provided with a drying mechanism (2) inside. An air outlet cover (3) is slidably connected inside the drying mechanism (2). A straight groove (4) is opened at the bottom of the air outlet cover (3). A limiting groove (5) is opened on one side of the straight groove (4). An adjustment groove (6) is opened on one side of the drying mechanism (2). An adjustment plate (7) is slidably connected inside the adjustment groove (6). A through groove (8) is opened at the top of the adjustment groove (6). A through block (9) is fixedly connected to the top of the adjustment plate (7).
2. The TPU film drying apparatus of claim 1, wherein: Two return springs (10) are fixedly connected to the side of the adjusting plate (7) near the inside of the adjusting groove (6), and the side of the return springs (10) away from the adjusting plate (7) is fixedly connected to the inside of the adjusting groove (6).
3. The TPU film drying apparatus of claim 1, wherein: The adjusting groove (6) has sliding grooves (11) at both ends, and the adjusting plate (7) has (12) fixedly connected to both ends. The surface of (12) is slidably connected to the interior of the sliding groove (11).
4. The TPU film drying apparatus of claim 1, wherein: The drying mechanism (2) has sliding blocks (17) on both sides inside, and guide blocks (13) are fixedly connected to both sides of the air outlet cover (3). The surface of the guide block (13) is slidably connected to the interior of the sliding block (17).
5. The TPU film drying apparatus of claim 1, wherein: The size of the through block (9) is adapted to the size of the limiting groove (5), and the surface of the through block (9) is inserted into the interior of the limiting groove (5).
6. The TPU film drying apparatus of claim 1, wherein: The drying mechanism (2) has guide grooves and shrinkage grooves (14) on both sides of the rear end. A thrust spring (16) is fixedly connected to the front end of the guide groove and shrinkage groove (14), and a push block (15) is fixedly connected to the front end of the thrust spring (16).