Device for automatically coating the surface of electronic component protection tape with antistatic liquid

Abstract

The utility model relates to electronic component protection band technical field, concretely is a kind of electronic component protection band surface automatic coating anti-static liquid device, including the liquid storage tank suitable for containing anti-static liquid and the pair of coating wheel rotatably located in liquid storage tank, each pair of coating wheel includes wheel body and the liquid guide pipe of spiral, the wheel body between a pair of coating wheel has the gap for electronic component protection band to move through, wheel body has liquid storage cavity and is rotatably connected with liquid storage tank, and the wheel surface of wheel body is provided with the drainage hole being communicated with liquid storage cavity;The first end of liquid guide pipe is fixed with wheel body and is communicated with liquid storage cavity, and the second end of liquid guide pipe extends to the anti-static liquid in liquid storage tank.The utility model combines the traction of electronic component protection band with coating action, and they are synchronous, ensure the orderly progress of coating operation and the promotion of coating quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electronic component protective tape technology, specifically to a device for automatically coating the surface of an electronic component protective tape with antistatic liquid. Background Technology

[0002] Electronic component protective tape is an important measure to protect electronic components from physical damage and electrostatic discharge (ESD) during manufacturing, transportation, and storage. To enhance the anti-static properties of the protective tape, its surface is typically treated, such as by coating it with an anti-static liquid. This anti-static liquid forms an extremely thin and transparent film on the surface of the protective tape, providing durable and efficient static dissipation, effectively eliminating static buildup caused by friction, and reducing problems such as electrostatic interference and dust adhesion.

[0003] In the prior art, for example, patent document with application number CN202022418593.7 discloses an apparatus for automatically coating the surface of an antistatic liquid onto the protective strip of electronic components. This apparatus, through its coating component, can effectively coat the protective strip with antistatic liquid, ensuring a uniform coating. A drying component then dries the surface of the protective strip coated with antistatic liquid, allowing antistatic particles to adhere evenly to the surface, thereby improving the quality and performance of the protective strip.

[0004] However, the aforementioned automatic antistatic liquid coating device has certain limitations. Specifically, the protective tape traction mechanism and the coating mechanism in this device are independent of each other, resulting in poor synchronization between the two, which may affect the final coating quality and efficiency. To address these issues, this utility model proposes an automatic antistatic liquid coating device for the surface of electronic component protective tape. Utility Model Content

[0005] The purpose of this invention is to provide an automatic antistatic liquid coating device for the surface of electronic component protective strips, in order to solve the problems mentioned in the background art.

[0006] This utility model is achieved through the following technical solution:

[0007] An automatic antistatic liquid coating device for electronic component protective strips includes a liquid storage tank suitable for holding the antistatic liquid and a pair of coating wheels rotatably disposed within the liquid storage tank. Each pair of coating wheels includes a wheel body and a spiral liquid guide tube. A gap is provided between the wheel bodies of the pair of coating wheels for the electronic component protective strip to move through. The wheel body has a liquid storage cavity and is rotatably connected to the liquid storage tank. A drain hole communicating with the liquid storage cavity is provided on the wheel surface of the wheel body. The first end of the liquid guide tube is fixed to the wheel body and communicates with the liquid storage cavity, and the second end of the liquid guide tube extends into the antistatic liquid in the liquid storage tank.

[0008] Optionally, an annular recess is formed on the wheel surface of the wheel body, and the drain hole is disposed in the recess. The height of the recess is adapted to the width of the electronic component protective strip.

[0009] Optionally, a sponge is provided in the recess, the sponge being annular and covering the drainage hole in the recess.

[0010] Optionally, each wheel body is provided with a plurality of drainage holes, which are evenly distributed within the recess.

[0011] Optionally, each pair of coating wheels further includes a connecting shaft, the first end of which is fixedly connected to the center of one end face of the wheel body, the second end of which is fixedly connected to the first end of the liquid guide tube, a connecting plate is provided in the liquid storage tank, and the connecting shaft is rotatably connected to the connecting plate.

[0012] Optionally, the connecting shaft is rotatably connected to the connecting plate via a deep groove ball bearing.

[0013] Optionally, the automatic antistatic liquid coating device for the surface of the electronic component protective strip further includes a drying device, wherein the pair of coating wheels and the drying device are arranged sequentially along the forward direction of the electronic component protective strip.

[0014] Optionally, the drying device includes a cover fixed to the liquid storage tank and two heating plates disposed at the bottom of the cover, with the electronic component protective strip passing between the two heating plates.

[0015] Optionally, a pair of rotatable positioning wheels are installed on the liquid storage tank on the side of the drying device opposite to the pair of coating wheels, and the electronic component protective belt moves through the pair of positioning wheels.

[0016] Optionally, the heating plate may be a combination of resistance heating, induction heating, electric arc heating, electron beam heating, infrared heating, and dielectric heating.

[0017] Compared with the prior art, this utility model provides an automatic antistatic liquid coating device for the surface of electronic component protective strips, which has the following beneficial effects:

[0018] 1. This utility model combines the traction of the electronic component protective strip with the coating action, and the two are carried out simultaneously, which ensures the orderly progress of the coating operation and improves the coating quality and efficiency.

[0019] 2. This utility model forms an annular recess on the wheel surface of the wheel body. Through the recess design, the position of the protective strip can be effectively restricted, reducing the probability of the protective strip of electronic components deviating, thereby ensuring the smooth progress of the coating operation;

[0020] 3. This utility model has a pair of rotatable positioning wheels installed on the liquid storage tank on the side of the drying device away from the pair of coating wheels. With the help of the synergistic effect of the positioning wheels and the coating wheels, it can ensure that the protective strip of electronic components is kept in the center between the two heating plates, thereby achieving uniform coating of the protective strip of electronic components. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the coating wheel of this utility model.

[0024] In the diagram: 10, protective strip for electronic components; 20, coating wheel; 21, wheel body; 210, drain hole; 211, recess; 212, sponge; 213, liquid storage chamber; 22, liquid guide tube; 23, connecting shaft; 30, liquid storage tank; 31, connecting plate; 40, drying device; 41, cover; 42, heating plate; 50, positioning wheel. Detailed Implementation

[0025] 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.

[0026] Example: Please refer to Figures 1 to 3 According to an embodiment of the present invention, an automatic antistatic liquid coating device is provided, which can be used to coat the surface of a strip-shaped object with antistatic liquid. The following description takes the strip-shaped object as an electronic component protective strip 10 as an example. The automatic antistatic liquid coating device includes a liquid storage tank 30 suitable for holding antistatic liquid and a pair of coating wheels 20 rotatably disposed in the liquid storage tank 30. Each pair of coating wheels 20 includes a wheel body 21 and a spiral liquid guide tube 22. There is a gap between the wheel bodies 21 of the pair of coating wheels 20 for the electronic component protective strip 10 to move through. The wheel body 21 has a liquid storage cavity 213 and is rotatably connected to the liquid storage tank 30. A drain hole 210 communicating with the liquid storage cavity 213 is provided on the wheel surface of the wheel body 21. The first end of the liquid guide tube 22 is fixed to the wheel body 21 and communicates with the liquid storage cavity 213. The second end of the liquid guide tube 22 extends into the antistatic liquid in the liquid storage tank 30.

[0027] The automatic antistatic liquid coating device for electronic component protective strips, employing the aforementioned structure, fixes the electronic component protective strip 10 between the wheel surfaces of two coating wheels 20. The movement of the electronic component protective strip 10 is then driven by a traction device (e.g., a wheel-type traction device that clamps the electronic component protective strip 10 using one or more sets of rollers, and propels the strip forward by the rotation of the rollers, which can be driven by a motor). During movement, the electronic component protective strip 10 rotates the two coating wheels 20 due to friction. During rotation, the antistatic liquid in the storage tank 30 flows into the storage cavity 213 through the guide pipe 22, and finally drains onto the surface of the protective strip through the drain hole 210, thus achieving the purpose of coating the surface of the electronic component protective strip 10 with antistatic liquid. Therefore, this automatic antistatic liquid coating device combines the traction and coating actions of the electronic component protective strip 10 simultaneously, ensuring the orderly progress of the coating operation and improving coating quality and efficiency.

[0028] In this exemplary embodiment, an annular recess 211 is formed concavely on the surface of the wheel body 21, and a drain hole 210 is disposed within the recess 211. The height of the recess 211 is adapted to the width of the electronic component protective strip 10. The recess 211 design effectively restricts the position of the protective strip, reducing the probability of the electronic component protective strip 10 deviating, thereby ensuring smooth coating operations. Furthermore, a sponge 212 is disposed within the recess 211, the sponge 212 being annular and covering the drain hole 210 within the recess 211. On one hand, the water absorption properties of the sponge 212 can improve the uniformity of the coating; on the other hand, the water absorption capacity of the sponge 212 also helps to prevent splashing when the antistatic liquid overflows from the drain hole 210. Even further, each wheel body 21 is provided with multiple drain holes 210, which are evenly distributed within the recess 211. This design ensures that the antistatic liquid in the reservoir 213 can overflow evenly from the surface of the wheel body 21, thereby further enhancing the uniformity of the coating.

[0029] In order to allow the coating wheels 20 to be rotatably mounted on the liquid storage tank 30, in this exemplary embodiment, each pair of coating wheels 20 further includes a connecting shaft 23. The first end of the connecting shaft 23 is fixedly connected to the center of one end face of the wheel body 21, and the second end of the connecting shaft 23 is fixedly connected to the first end of the liquid guide tube 22. A connecting plate 31 is provided inside the liquid storage tank 30, and the connecting shaft 23 is rotatably connected to the connecting plate 31. Specifically, the connecting shaft 23 can be rotatably connected to the connecting plate 31 via a deep groove ball bearing.

[0030] In this exemplary embodiment, the automatic antistatic liquid coating device for the surface of the electronic component protective strip 10 further includes a drying device 40, with a pair of coating wheels 20 and the drying device 40 arranged sequentially along the forward direction of the electronic component protective strip 10. With this configuration, the electronic component protective strip 10, after being treated by the coating wheels 20, can achieve an efficient drying process when passing through the drying device 40, thereby shortening the coating drying cycle.

[0031] In this exemplary embodiment, the drying apparatus 40 includes a cover 41 fixed to the liquid storage tank 30 and two heating plates 42 disposed at the bottom of the cover 41, with the electronic component protective strip 10 passing between the two heating plates 42. Specifically, the heating method of the heating plates 42 is one or a combination of resistance heating, induction heating, electric arc heating, electron beam heating, infrared heating, and dielectric heating. Of course, the drying apparatus 40 may also include a fan disposed on the cover 41, which can accelerate the airflow speed across the surface of the electronic component protective strip 10, further improving the drying effect.

[0032] In this exemplary embodiment, a pair of rotatable positioning wheels 50 are mounted on the liquid storage tank 30 on the side of the drying apparatus 40 opposite to the pair of coating wheels 20, and the electronic component protective strip 10 moves through the pair of positioning wheels 50. With the cooperation of the positioning wheels 50 and the coating wheels 20, it is possible to ensure that the electronic component protective strip 10 is kept in a central position between the two heating plates 42, thereby achieving uniform heating of the electronic component protective strip 10.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for automatically coating the surface of an antistatic liquid onto a protective strip for electronic components, characterized in that, Includes a reservoir (30) suitable for holding an antistatic liquid and a pair of coating wheels (20) rotatably disposed within the reservoir (30), each pair of coating wheels (20) comprising: Wheel body (21), the wheel body (21) of the pair of coated wheels (20) has a gap between the wheel bodies (21) for the electronic component protective belt (10) to move through, the wheel body (21) has a liquid storage cavity (213) and is rotatably connected to the liquid storage tank (30), and the wheel surface of the wheel body (21) is provided with a drain hole (210) communicating with the liquid storage cavity (213); And a spiral liquid guide tube (22), the first end of which is fixed to the wheel body (21) and connected to the liquid storage cavity (213), and the second end extends into the antistatic liquid in the liquid storage tank (30).

2. The device for automatically coating the surface of the electronic component protective strip with antistatic liquid according to claim 1, characterized in that: The wheel body (21) has an annular recess (211) formed on its wheel surface. The drain hole (210) is located in the recess (211). The height of the recess (211) is adapted to the width of the electronic component protection strip (10).

3. The device for automatically coating the surface of the electronic component protective strip with antistatic liquid according to claim 2, characterized in that: A sponge (212) is provided inside the recess (211), and the sponge (212) is annular and covers the drainage hole (210) inside the recess (211).

4. The device for automatically coating the surface of the electronic component protective strip with antistatic liquid according to claim 2, characterized in that: Each wheel body (21) is provided with a plurality of drainage holes (210), and the plurality of drainage holes (210) are evenly distributed in the recess (211).

5. The device for automatically coating the surface of the electronic component protective strip with antistatic liquid according to claim 1, characterized in that: Each pair of coating wheels (20) also includes a connecting shaft (23). The first end of the connecting shaft (23) is fixedly connected to the center of one end face of the wheel body (21). The second end of the connecting shaft (23) is fixedly connected to the first end of the liquid guide tube (22). A connecting plate (31) is provided in the liquid storage tank (30). The connecting shaft (23) is rotatably connected to the connecting plate (31).

6. The device for automatically coating the surface of the electronic component protective strip with antistatic liquid according to claim 5, characterized in that: The connecting shaft (23) is rotatably connected to the connecting plate (31) via a deep groove ball bearing.

7. The device for automatically coating the surface of the electronic component protective strip with antistatic liquid according to any one of claims 1 to 6, characterized in that: It also includes a drying device (40), wherein the pair of coating wheels (20) and the drying device (40) are arranged sequentially along the forward direction of the electronic component protective belt (10).

8. The device for automatically coating the surface of the electronic component protective strip with antistatic liquid according to claim 7, characterized in that: The drying device (40) includes a cover (41) fixed on the liquid storage tank (30) and two heating plates (42) disposed at the bottom of the cover (41), and the electronic component protection strip (10) passes between the two heating plates (42).

9. The device for automatically coating the surface of the electronic component protective strip with antistatic liquid according to claim 8, characterized in that: A pair of rotatable positioning wheels (50) are installed on the liquid storage tank (30) on the side of the drying device (40) away from the pair of coating wheels (20), and the electronic component protective belt (10) passes through the pair of positioning wheels (50).

10. The device for automatically coating the surface of the electronic component protective strip with antistatic liquid according to claim 8, characterized in that: The heating plate (42) is heated by one or a combination of resistance heating, induction heating, electric arc heating, electron beam heating, infrared heating and medium heating.

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