TPU film attaching device

Abstract

The utility model relates to the technical field of electric heating cloth manufacturing, in particular to a TPU (Thermoplastic Polyurethane) film attaching device which is characterized in that backing paper for bearing a plurality of TPU films is wound on an unwinding shaft; the conveying roller assembly is used for conveying the TPU film on the backing paper to a designated material taking position; the winding shaft is used for winding the taken backing paper; the picking assembly comprises a three-dimensional moving module and an adsorption assembly, and the adsorption assembly is used for adsorbing the TPU film on the backing paper; the image acquisition unit is used for acquiring the position of the adsorbed TPU film; the control unit is used for analyzing the deviation between the actual position of the TPU film and the area to be attached and adjusting the three-dimensional moving module to change the position of the TPU film according to deviation data. Through the arrangement of the unwinding shaft, the conveying roller assembly, the winding shaft and the picking assembly, automatic material taking of the TPU film is achieved, the position of the three-dimensional moving module is adjusted in real time through the image collecting unit and the control unit, the attaching precision of the TPU film is guaranteed, and the overall quality of a product is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric heating cloth manufacturing technology, and in particular to a TPU film bonding device. Background Technology

[0002] As a key component in fields such as smart wearables and medical physiotherapy, the core technology of electric heating fabric lies in the stacking and bonding of multiple functional materials. A typical electric heating fabric structure includes a base fabric, a flexible printed circuit board (FPC), a silver paste conductive layer, a carbon film (heating element), and a TPU film encapsulation layer. Its manufacturing process involves multiple precise TPU film attachments, including: attaching a local TPU film to the silver paste coating area of ​​the FPC to prevent silver paste oxidation or peeling; and covering the upper and lower surfaces of the carbon film (heating element) with TPU films to achieve encapsulation and protection.

[0003] However, the application of TPU film currently relies mainly on manual labor, which is inefficient and makes it difficult to guarantee the positioning accuracy of multi-layer TPU film, thus affecting product quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a TPU film bonding device, which effectively solves the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a TPU film bonding device, comprising:

[0006] Unwind the roll, on which is wound a backing paper that carries several TPU films;

[0007] The conveyor roller assembly is used to convey the TPU film on the backing paper to the designated pick-up position;

[0008] A rewinding shaft is used to rewind the backing paper after it has been taken out of the container;

[0009] The pickup component includes a three-dimensional moving module and an adsorption component mounted on the three-dimensional moving module, the adsorption component being used to adsorb the TPU film on the backing paper;

[0010] An image acquisition unit is positioned on the path of the TPU film transferred by the pickup component, and is used to acquire the position of the adsorbed TPU film.

[0011] The control unit is used to analyze the deviation between the actual position of the TPU film and the area to be attached, and adjust the three-dimensional moving module according to the deviation data to change the position of the TPU film.

[0012] Furthermore, the conveyor roller assembly includes an upper guide roller group, a lower guide roller group, and a stripping platform;

[0013] The upper guide roller group is located above the peeling platform, the lower guide roller group is located below the peeling platform, the unwinding shaft is located at the starting position of the upper guide roller group, the winding shaft is located at the ending position of the lower guide roller group, and the peeling platform is located at the intersection of the upper guide roller group and the lower guide roller group.

[0014] Furthermore, the peeling platform is provided with two limiting plates, which are located at the two side edges of the base paper.

[0015] Furthermore, the upper guide roller assembly includes a first guide roller and a guide platform, wherein the guide platform and the stripping platform are on the same horizontal plane;

[0016] The first guide roller is disposed at the feeding end of the guide platform, and the bottom of the first guide roller is lower than the plane of the guide platform.

[0017] Furthermore, the lower guide roller group includes at least two guide rollers, and a tension adjusting roller group is provided on the winding path of the base paper.

[0018] Furthermore, the three-dimensional moving module includes an X-axis module, a Y-axis module, a Z-axis module, and an adsorption head assembly disposed on the Z-axis module;

[0019] The adsorption head assembly includes a body and a cylinder disposed below the body, with the adsorption component disposed at the drive end of the cylinder.

[0020] Furthermore, the adsorption components are arranged in groups.

[0021] Furthermore, the adsorption assembly includes an upper connecting block, a lower connecting block, and an adsorption disk disposed below the lower connecting block;

[0022] The upper connecting block and the lower connecting block are detachably connected. The adsorption plate is provided with a plurality of adsorption holes. The top surface of the adsorption plate facing the lower connecting block is provided with a cavity, and the lower connecting block is provided with an air hole communicating with the cavity.

[0023] Furthermore, the upper connecting block and the lower connecting block are provided with matching grooves and protrusions, and a locking shaft is provided on the upper connecting block, the locking shaft extending into the groove and abutting against the protrusion.

[0024] Furthermore, the image acquisition unit includes a camera and a ring light source.

[0025] The beneficial effects of this utility model are as follows: By setting up an unwinding shaft, a conveyor roller assembly, a rewinding shaft, and a pickup assembly, this utility model realizes automatic material picking of TPU film, and by adjusting the position of the three-dimensional moving module in real time through an image acquisition unit and a control unit, it ensures the adhesion accuracy of the TPU film and improves the overall quality of the product. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the TPU film attaching device in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the conveyor roller assembly in an embodiment of the present invention;

[0028] Figure 3 for Figure 1 A magnified view of part A;

[0029] Figure 4 This is a schematic diagram of the picking component in an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the adsorption head assembly in an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the adsorption component in an embodiment of the present invention.

[0032] Reference numerals: 1. Unwinding shaft; 2. Conveyor roller assembly; 21. Upper guide roller group; 211. First guide roller; 212. Guide platform; 22. Lower guide roller group; 23. Peeling platform; 24. Limiting plate; 25. Tension adjusting roller group; 3. Rewinding shaft; 4. Pickup assembly; 41. Three-dimensional moving module; 411. X-axis module; 412. Y-axis module; 413. Z-axis module; 414. Adsorption head assembly; 42. Adsorption assembly; 421. Upper connecting block; 422. Lower connecting block; 423. Adsorption plate; 423a. Cavity; 5. Image acquisition unit. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0034] like Figures 1 to 6The TPU film application device shown includes: an unwinding shaft 1, a conveyor roller assembly 2, a take-up shaft 3, a pickup assembly 4, an image acquisition unit 5, and a control unit. The unwinding shaft 1 is wound with a backing paper carrying several TPU films. The conveyor roller assembly 2 conveys the TPU films on the backing paper to a designated pickup position. The take-up shaft 3 rewinds the backing paper after pickup. The pickup assembly 4 includes a three-dimensional moving module 41 and an adsorption assembly 42 mounted on the three-dimensional moving module 41. The adsorption assembly 42 adsorbs the TPU films on the backing paper. The image acquisition unit 5 is positioned along the path of the pickup assembly 4 that transports the TPU films and is used to acquire the position of the adsorbed TPU films. The control unit analyzes the deviation between the actual position of the TPU films and the area to be applied, and adjusts the three-dimensional moving module 41 according to the deviation data to change the position of the TPU films. It should be noted that the TPU films on the backing paper are die-cut structures, and the die-cut TPU films are arranged regularly on the backing paper to ensure consistent spacing between the TPU films picked up each time.

[0035] The unwinding roller 1 releases the base paper, which is guided to the picking position by the conveyor roller assembly 2. The three-dimensional moving module 41 is activated, which drives the adsorption assembly 42 to move to the picking position to vacuum adsorb the TPU film. The three-dimensional moving module 41 continues to drive the adsorption assembly 42 to transfer the TPU film to the area to be attached. During the transfer, the image acquisition unit 5 acquires the position of the TPU film. The image processing module analyzes the deviation between the actual position of the TPU film and the area to be attached. The control module adjusts the position of the three-dimensional moving module 41 according to the deviation data, thereby changing the position of the TPU film to ensure the attachment accuracy.

[0036] By setting up the unwinding shaft 1, the conveyor roller assembly 2, the rewinding shaft 3, and the pickup assembly 4, automatic TPU film picking is realized. The position of the three-dimensional moving module 41 is adjusted in real time through the image acquisition unit 5 and the control unit, which ensures the adhesion accuracy of the TPU film and improves the overall quality of the product.

[0037] In this invention, the conveyor roller assembly 2 includes an upper guide roller group 21, a lower guide roller group 22, and a peeling platform 23. The upper guide roller group 21 is located above the peeling platform 23, and the lower guide roller group 22 is located below the peeling platform 23. The unwinding shaft 1 is located at the starting position of the upper guide roller group 21, and the rewinding shaft 3 is located at the ending position of the lower guide roller group 22. The peeling platform 23 is located at the intersection of the upper guide roller group 21 and the lower guide roller group 22. When the backing paper on the unwinding shaft 1 conveys the TPU film to the peeling platform 23, the pick-up assembly 4 picks up the TPU film on the peeling platform 23 so that the TPU film can be smoothly peeled off from the backing paper.

[0038] The peeling platform 23 is equipped with two limiting plates 24, which are located at the two side edges of the backing paper. The limiting plates 24 can physically constrain the backing paper, ensuring that its position on the peeling platform 23 is fixed, reducing the shaking or sliding of the backing paper during the peeling process of the TPU film, thereby improving the stability of the entire material handling process.

[0039] As a preferred embodiment, the upper guide roller group 21 includes a first guide roller 211 and a guide platform 212, with the guide platform 212 and the stripping platform 23 on the same horizontal plane; the first guide roller 211 is disposed at the feeding end of the guide platform 212, and the bottom of the first guide roller 211 is lower than the plane of the guide platform 212.

[0040] The bottom paper wraps around the bottom of the first guide roller 211 and enters the guide platform 212 at an angle, ensuring that the bottom paper can completely fit the guide platform 212; and the angled entry design can better adjust the tension of the bottom paper and avoid wrinkles or loosening of the bottom paper due to uneven tension.

[0041] As a preferred embodiment, the lower guide roller group 22 includes at least two guide rollers, and a tension regulating roller group 25 is set on the winding path of the bottom paper, which can monitor and adjust the tension of the bottom paper in real time during the winding process to ensure the uniformity and stability of the tension.

[0042] In a preferred embodiment of this utility model, the three-dimensional moving module 41 includes an X-axis module 411, a Y-axis module 412, a Z-axis module 413, and an adsorption head assembly 414 disposed on the Z-axis module 413; the combination of the X-axis, Y-axis and Z-axis modules 413 can realize precise movement in three-dimensional space, and can accurately move the adsorption head assembly 414 to any specified position.

[0043] The adsorption head assembly 414 includes a main body and a cylinder disposed below the main body, with the adsorption component 42 disposed at the drive end of the cylinder. By driving the adsorption component 42 with the cylinder, the downward movement distance can be finely adjusted according to actual needs to adapt to TPU films of different materials and thicknesses.

[0044] In this invention, the adsorption components 42 are arranged in groups. The grouped adsorption components 42 can pick up multiple TPU films at once, and the spatial position is uniformly adjusted by the three-dimensional moving module 41 to avoid the cumulative error when attaching layers one by one.

[0045] In the preferred structure, the adsorption component 42 includes an upper connecting block 421, a lower connecting block 422, and an adsorption disk 423 disposed below the lower connecting block 422; the upper connecting block 421 and the lower connecting block 422 are detachably connected, the adsorption disk 423 is provided with a plurality of adsorption holes, the top surface of the adsorption disk 423 facing the lower connecting block 422 is provided with a cavity 423a, and the lower connecting block 422 is provided with an air hole communicating with the cavity 423a.

[0046] The upper connecting block 421 and the lower connecting block 422 are detachably connected, allowing the specifications of the adsorption plate 423 to be changed according to the size of the TPU film. The internal pores are connected to the cavity 423a. Through the several adsorption holes on the adsorption plate 423, the adsorption force can be evenly distributed, reducing adsorption instability caused by insufficient local adsorption force. Furthermore, the pores are located inside, reducing the complexity of the air path design, improving the system's sealing performance, and ensuring stable output of adsorption force.

[0047] In addition, the upper connecting block 421 and the lower connecting block 422 are provided with matching grooves and protrusions, and a locking shaft is provided on the upper connecting block 421, which extends into the groove and abuts against the protrusion.

[0048] The sliding groove and protrusion design allows the upper connecting block 421 and the lower connecting block 422 to be quickly aligned and connected, and the use of a locking shaft further secures the connection between the two. This structure facilitates the quick disassembly and installation of the adsorption assembly 42, greatly improving maintenance efficiency.

[0049] In this invention, the image acquisition unit 5 includes a camera and a ring light source. The ring light source can provide uniform illumination, reduce the effects of shadows and reflections, and make the light distribution on the surface of the illuminated object more uniform, thereby improving the image clarity and contrast.

[0050] This utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only for illustrating the principles of this utility model. Various changes and modifications can be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A TPU film bonding device, characterized in that, include: Unwind the roll (1), on which a backing paper carrying several TPU films is wound; The conveyor roller assembly (2) is used to convey the TPU film on the backing paper to the designated pick-up position; The take-up shaft (3) is used to rewind the bottom paper after it has been taken out; Pick-up component (4) includes a three-dimensional moving module (41) and an adsorption component (42) mounted on the three-dimensional moving module (41), the adsorption component (42) being used to adsorb the TPU film on the backing paper; The image acquisition unit (5) is set on the path of the TPU film transferred by the pickup component (4) and is used to acquire the position of the adsorbed TPU film. The control unit is used to analyze the deviation between the actual position of the TPU film and the area to be attached, and adjust the three-dimensional moving module (41) according to the deviation data to change the position of the TPU film.

2. The TPU film bonding device according to claim 1, characterized in that, The conveyor roller assembly (2) includes an upper guide roller group (21), a lower guide roller group (22), and a stripping platform (23); The upper guide roller group (21) is located above the peeling platform (23), the lower guide roller group (22) is located below the peeling platform (23), the unwinding shaft (1) is located at the starting position of the upper guide roller group (21), the winding shaft (3) is located at the end position of the lower guide roller group (22), and the peeling platform (23) is located at the intersection of the upper guide roller group (21) and the lower guide roller group (22).

3. The TPU film bonding device according to claim 2, characterized in that, The peeling platform (23) is provided with two limiting plates (24), which are located at the two side edges of the base paper.

4. The TPU film bonding device according to claim 2, characterized in that, The upper guide roller group (21) includes a first guide roller (211) and a guide platform (212), wherein the guide platform (212) and the stripping platform (23) are on the same horizontal plane; The first guide roller (211) is disposed at the feeding end of the guide platform (212), and the bottom of the first guide roller (211) is lower than the plane of the guide platform (212).

5. The TPU film bonding device according to claim 2, characterized in that, The lower guide roller group (22) includes at least two guide rollers, and a tension adjusting roller group (25) is provided on the winding path of the bottom paper.

6. The TPU film bonding device according to claim 1, characterized in that, The three-dimensional moving module (41) includes an X-axis module (411), a Y-axis module (412), a Z-axis module (413), and an adsorption head assembly (414) disposed on the Z-axis module (413); The adsorption head assembly (414) includes a body and a cylinder disposed below the body, and the adsorption component (42) is disposed at the drive end of the cylinder.

7. The TPU film bonding device according to claim 1, characterized in that, The adsorption components (42) are arranged in groups.

8. The TPU film bonding device according to claim 1, characterized in that, The adsorption assembly (42) includes an upper connecting block (421), a lower connecting block (422), and an adsorption plate (423) disposed below the lower connecting block (422); The upper connecting block (421) and the lower connecting block (422) are detachably connected. The adsorption plate (423) is provided with a plurality of adsorption holes. The top surface of the adsorption plate (423) facing the lower connecting block (422) is provided with a cavity (423a), and the lower connecting block (422) is provided with an air hole communicating with the cavity (423a).

9. The TPU film bonding device according to claim 8, characterized in that, The upper connecting block (421) and the lower connecting block (422) are provided with matching grooves and protrusions, and a locking shaft is provided on the upper connecting block (421), the locking shaft extending into the groove and abutting against the protrusion.

10. The TPU film bonding device according to claim 1, characterized in that, The image acquisition unit (5) includes a camera and a ring light source.

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