Automatic coating device for super-hydrophilic paint
By designing an automatic coating device for superhydrophilic coatings that combines a honeycomb structure cloth and a limiting block, the problem of uneven coating distribution was solved, achieving uniformity and stability of the coating, reducing manual repairs, and improving coating efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU VOCATIONAL COLLEGE OF SCI & TECH
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-05
AI Technical Summary
Existing automated spreading devices for superhydrophilic coatings are unable to dynamically adjust the coating distribution, resulting in uneven coatings, easy accumulation at the edges or insufficient coverage in the center, requiring manual repair.
An automatic coating device for superhydrophilic coatings was designed. It adopts a combination of honeycomb structure cloth and limiting block to achieve uniform release and distribution of coating. Combined with the structural design of spring piston and limiting block, it ensures that the cloth is stored in the non-working state to avoid interfering with other processes.
It achieves coating uniformity, reduces the need for manual repairs, and improves coating efficiency and coating stability.
Smart Images
Figure CN224195074U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating equipment technology, and more specifically, to an automatic coating device for superhydrophilic coatings. Background Technology
[0002] Superhydrophilic materials, through surface chemical modification or nanoscale rough structure design, can achieve a water contact angle close to 0°, enabling the rapid formation of a uniform water film. They are widely used in high-precision mirrors (such as optical instruments and precision sensors), anti-fog glass, and photovoltaic panels. Their performance depends on the continuity and microstructure of the coating. While traditional spraying processes can achieve rapid application, the spontaneous spreading of the coating on the substrate surface is easily affected by environmental disturbances or differences in substrate surface energy, potentially leading to localized accumulation or weak areas, resulting in fluctuations in light transmittance or unstable anti-fog effects.
[0003] Currently, most automated application devices for superhydrophilic coatings use flat cloths, which make it difficult to dynamically adjust coating distribution and microscopic penetration when treating mirror surfaces. The uniform texture of ordinary cloths may exacerbate coating buildup at the edges or insufficient coverage in the center, requiring manual rework. Therefore, we propose an automated superhydrophilic coating application device. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an automatic coating device for superhydrophilic coatings. This device solves the technical problems that existing spraying processes are prone to uneven coating due to differences in environment or substrate, and that flat wiping cloths may cause edge accumulation or insufficient center coverage, requiring manual repair.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic coating device for superhydrophilic coatings, including a gun body, a conveying mechanism arranged inside the gun body, a gun handle arranged on one side of the lower outer end of the gun body, and a coating mechanism arranged on the other side of the lower outer end of the gun body. The coating mechanism includes a housing A, a drive motor arranged on one side inside the housing A, an adjustment unit connected to the output end of the drive motor, and a spreading unit arranged at one end of the adjustment unit.
[0006] The spreading unit includes a fixed plate, on which a cloth is wound, and the surface of the cloth has a honeycomb structure.
[0007] Preferably, the conveying mechanism includes a pump body, an input end of which is connected to a pipe A, one end of which is placed inside a bottle and the bottle body is connected to the lower middle of the outside of the gun body, and an output end of which is connected to a pipe B, one end of which is connected to a nozzle and the nozzle is fixed to one side of the gun body.
[0008] Preferably, the adjusting unit includes a housing B, a shaft is rotatably mounted in the middle of the housing B, a ring block is fixed on the shaft, a limiting block A is arranged on one side of the ring block and the limiting block A slides on the shaft, a limiting block B is fixed at one end of the shaft, and a spring piston A is connected to the limiting block B.
[0009] Preferably, spring pistons B are arranged at both the upper and lower ends inside the housing B, and a limiting block C is arranged at the head end of the spring piston B, and the surface of the limiting block C has a beveled structure.
[0010] Preferably, the spreading unit further includes a base plate with insertion holes at both ends. A screw is inserted into the insertion holes, with a threaded sleeve engaged at one end of the screw and a fixed plate connected to the other end of the screw.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model designs a wiping cloth structure with a honeycomb structure on the surface. The pores distributed on the surface can adsorb superhydrophilic coatings and release them evenly onto the mirror surface. When in contact with the mirror surface, the honeycomb structure can distribute the pressure. Each pore independently controls the amount of coating released, thereby reducing the difference in coating thickness. At the same time, the sharp angle design of the pore edges produces a slight scratching effect on the surface during movement, which helps to remove impurities, achieve uniform coating in a single application, and reduce the need for manual secondary repairs.
[0013] 2. This utility model, through the design of limiting block A and limiting block B, allows the base plate to move the shaft rod into the housing B. When the base plate moves the shaft rod into the housing B, the ring block fixed on the surface of the shaft rod drives the slidingly installed limiting block A to move between the two limiting blocks C and open it up. At this time, the blocked limiting block B moves out of the gap between the limiting blocks C under the action of the spring piston A, and simultaneously pulls the limiting block A out. During this process, the base plate at the end of the shaft rod can extend out of the housing A, allowing the rag to be exposed for the coating spreading operation. In the non-working state, the rag can be retracted into the housing A for storage, avoiding interference with other processes.
[0014] 3. This utility model designs a structure of spring piston A, limiting block C, and spring piston B. When the shaft drives the limiting block B to the gap between the two limiting blocks C, the limiting block C is squeezed and separated. The shaft further pushes the limiting block B to the side of the limiting block C. At this time, the spring piston B uses elastic force to reset the limiting block C and form a limiting constraint on the limiting block B, restricting the accidental displacement of the cloth at the end of the shaft from the housing A. The bevel structure on the side of the limiting block C can guide the pushing direction of the limiting block A and the limiting block B, reducing the separation resistance. After the limiting block B completes its displacement, its cooperation with the limiting block C forms an anti-reverse effect, realizing a one-way limiting function. Attached Figure Description
[0015] Figure 1This is a schematic diagram of the main appearance structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention from the front view.
[0017] Figure 3 This is a schematic diagram of the smoothing unit structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the planar structure of the rag of this utility model;
[0019] Figure 5 This is a schematic diagram of the adjustable distance unit structure of this utility model;
[0020] Figure 6 This is a schematic diagram of the limiting block A pushing structure of this utility model.
[0021] Explanation of the labels in the diagram:
[0022] 1. Gun body; 2. Conveying mechanism; 201. Pump body; 202. Pipe A; 203. Bottle body; 204. Pipe B; 205. Spray head; 3. Gun handle; 4. Coating mechanism; 401. Housing A; 402. Drive motor; 403. Adjustment unit; 4031. Housing B; 4032. Shaft; 4033. Ring block; 4034. Limiting block A; 4035. Limiting block B; 4036. Spring piston A; 4037. Spring piston B; 4038. Limiting block C; 404. Spreading unit; 4041. Fixed plate; 4042. Wiping cloth; 4043. Base plate; 4044. Insertion hole; 4045. Screw; 4046. Screw sleeve. Detailed Implementation
[0023] like Figures 1 to 6 As shown, the present invention relates to an automatic coating device for superhydrophilic coatings, including a gun body 1, a conveying mechanism 2 arranged inside the gun body 1, a gun handle 3 arranged on one side of the lower outer end of the gun body 1, and a coating mechanism 4 arranged on the other side of the lower outer end of the gun body 1. The coating mechanism 4 includes a housing A401, a drive motor 402 arranged on one side inside the housing A401, an adjustment unit 403 connected to the output end of the drive motor 402, and a spreading unit 404 arranged at one end of the adjustment unit 403.
[0024] The spreading unit 404 includes a fixed plate 4041, on which a cloth 4042 is wound. The surface of the cloth 4042 has a honeycomb structure. This invention designs the structure of the cloth 4042, whose surface has a honeycomb structure. The distributed pores on its surface can absorb superhydrophilic coating and release it evenly onto the mirror surface. When in contact with the mirror surface, the honeycomb structure can distribute pressure, and each pore independently controls the amount of coating released, thereby reducing coating thickness differences. Simultaneously, the sharp angles at the edges of the pores create a slight scratching effect on the surface during movement, aiding in the removal of impurities and achieving uniform coating in a single application, reducing the need for manual secondary repairs.
[0025] In an embodiment of this utility model, the conveying mechanism 2 includes a pump body 201, an input end of the pump body 201 connected to a pipe A202, one end of the pipe A202 placed inside a bottle body 203, and the bottle body 203 connected to the lower middle of the outside of the gun body 1. The output end of the pump body 201 is connected to a pipe B204, one end of the pipe B204 is connected to a nozzle 205, and the nozzle 205 is fixed to one side of the gun body 1. This invention, through the structure of pipe A202, pump body 201, and pipe B204, allows the superhydrophilic coating in bottle 203 to be pumped into nozzle 205, achieving the effect of actively pumping and spraying the superhydrophilic coating onto the mirror-like object awaiting coating. The bottle 203 allows the superhydrophilic coating to be used to be temporarily stored inside, making it easy to retrieve and move for later use. With the battery installed under the handle 3, the device can be easily started and used in a portable manner. The nozzle 205 allows the superhydrophilic coating delivered by pump body 201 through pipe B204 to be sprayed over a wide area onto the mirror-like object awaiting coating.
[0026] In an embodiment of this utility model, the adjusting unit 403 includes a housing B4031, a shaft 4032 is rotatably mounted in the middle of the housing B4031, a ring block 4033 is fixed on the shaft 4032, a limiting block A4034 is arranged on one side of the ring block 4033 and the limiting block A4034 slides on the shaft 4032, a limiting block B4035 is fixed at one end of the shaft 4032, and a spring piston A4036 is connected to the limiting block B4035. This utility model, through the design of limiting block A4034 and limiting block B4035, allows the following structure: When the base plate 4043 carries the shaft 4032 into the housing B4031, the ring block 4033 fixed on the surface of the shaft 4032 drives the slidingly mounted limiting block A4034 to move between the two limiting blocks C4038 and open it up. At this time, the obstructed limiting block B4035 moves out of the gap between the limiting blocks C4038 under the action of the spring piston A4036, and simultaneously pulls the limiting block A4034 out. During this process, the base plate 4043 at the end of the shaft 4032 can extend out from the housing A401, allowing the wiping cloth 4042 to be exposed for the coating spreading operation. In the non-working state, the wiping cloth 4042 can be retracted into the housing A401 for storage, avoiding interference with other processes.
[0027] In an embodiment of this utility model, spring pistons B4037 are arranged at both the upper and lower ends inside the housing B4031. A limiting block C4038 is arranged at the head end of the spring piston B4037, and the surface of the limiting block C4038 has a beveled structure. This invention utilizes a structure consisting of a spring piston A4036, a limiting block C4038, and a spring piston B4037. When the shaft 4032 moves the limiting block B4035 to the gap between the two limiting blocks C4038, the limiting block C4038 is squeezed and separated. The shaft 4032 further pushes the limiting block B4035 to the side of the limiting block C4038. At this time, the spring piston B4037 uses elastic force to reset the limiting block C4038 and form a limiting constraint on the limiting block B4035, restricting the accidental displacement of the end of the shaft 4032 from the housing A401. The bevel structure on the side of the limiting block C4038 can guide the pushing direction of the limiting blocks A4034 and B4035, reducing separation resistance. After the limiting block B4035 completes its displacement, its cooperation with the limiting block C4038 forms an anti-reverse effect, realizing a one-way limiting function.
[0028] In an embodiment of this utility model, the smoothing unit 404 further includes a base plate 4043. The base plate 4043 has insertion holes 4044 at both ends. A screw 4045 is inserted into the insertion hole 4044. One end of the screw 4045 is threaded with a screw sleeve 4046, and the other end of the screw 4045 is connected to a fixing plate 4041. The fixed plate 4041 of this utility model allows the cloth 4042 to be wrapped around its surface, providing a placement position. Through the design of the insertion hole 4044, screw 4045 and screw sleeve 4046 structure, after the cloth 4042 is wrapped around the fixed plate 4041, the screw 4045 can be inserted into the insertion hole 4044, so that the fixed plate 4041 can be attached to the surface of the base plate 4043. Then, the screw sleeve 4046 is screwed onto one end of the screw 4045, so that the fixed plate 4041 can be firmly fixed to the surface of the base plate 4043, completing the fixed installation of the cloth 4042. This installation method is convenient for initial installation and subsequent removal and replacement, making it convenient for workers to use.
[0029] Working Principle: This embodiment provides an automatic coating device for superhydrophilic coatings. Before use, the operator needs to charge the battery. After charging, the battery is installed under the gun handle 3. After installation, the operator needs to take the bottle 203 and fill it with superhydrophilic coating. After filling, the operator places the bottle 203 in the middle of the lower outer surface of the gun body 1, inserting the pipe A202 into the bottle 203. After insertion, the bottle 203 is rotated and installed at the connection port in the middle of the lower outer surface of the gun body 1. After installation, the device is ready for use. During use, the operator can control the pump 201 inside the gun body 1 using the button on the gun handle 3. The pump is turned on by pressing the button. Pump 201 starts operating and draws the superhydrophilic coating from bottle 203 into the pump body via pipe A202. The coating is then delivered to nozzle 205 via pipe B204, where it is sprayed onto the object. During spraying, the operator can control the position of nozzle 205 using the handle 3 to spray different areas of the object. After spraying, the operator presses a button to shut off pump 201, stopping the supply of superhydrophilic coating. The operator can then press a rag 4042. Pressing the rag 4042 will push shaft 4032 via mounting plate 4041 and base plate 4043, causing the shaft 4032 to be pushed. The mounting ring 4033 pushes the limiting block A4034 between the two limiting blocks C4038. Once the limiting block A4034 is between the two limiting blocks C4038, it becomes stuck between them. After the limiting block A4034 is locked in place, the limiting block B4035 is pushed by the spring piston A4036. The limiting block B4035, along with the shaft 4032, moves and comes into contact with the side of the limiting block A4034. Because the size of the limiting block B4035 is smaller than that of the limiting block A4034, the moving limiting block B4035 can push the limiting block A4034 out of the two limiting blocks C4038. The rear shaft 4032 will be pulled by the spring piston A4036 and will not move. In this way, the wiping cloth 4042 will protrude from the housing A401. After protrusion, the operator controls the drive motor 402 to rotate the output end connected to the adjusting unit 403. Then, the adjusting unit 403 will rotate the wiping cloth 4042 in the wiping unit 404. After the wiping cloth 4042 rotates, the operator will stick it to the object that has just been sprayed with superhydrophilic coating and rotate it to wipe it evenly. While rotating and wiping, the operator can also turn on the drying lamp installed at one end of the gun body 1 to dry the superhydrophilic coating that has just been wiped evenly. In this way, a firm water film can be formed, realizing the complete process of superhydrophilic coating.
[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.
Claims
1. An automatic coating device for superhydrophilic coatings, comprising a gun body (1), characterized in that: The gun body (1) is equipped with a conveying mechanism (2) inside, and a gun handle (3) is arranged on one side of the lower end of the gun body (1). A painting mechanism (4) is arranged on the other side of the lower end of the gun body (1). The painting mechanism (4) includes a housing A (401). A drive motor (402) is arranged on one side of the housing A (401). The output end of the drive motor (402) is connected to an adjustment unit (403). A smoothing unit (404) is arranged at one end of the adjustment unit (403). The spreading unit (404) includes a fixed plate (4041), on which a wiping cloth (4042) is wound, and the surface of the wiping cloth (4042) is provided with a honeycomb structure.
2. The automatic coating device for superhydrophilic coatings according to claim 1, characterized in that: The conveying mechanism (2) includes a pump body (201), the input end of which is connected to a pipe A (202), one end of which is placed inside a bottle body (203), and the bottle body (203) is connected to the lower middle of the outside of the gun body (1). The output end of the pump body (201) is connected to a pipe B (204), one end of which is connected to a nozzle (205), and the nozzle (205) is fixed to one side of the gun body (1).
3. The automatic coating device for superhydrophilic coatings according to claim 2, characterized in that: The adjusting unit (403) includes a housing B (4031), a shaft (4032) is rotatably mounted inside the housing B (4031), a ring block (4033) is fixed on the shaft (4032), a limiting block A (4034) is arranged on one side of the ring block (4033), and the limiting block A (4034) slides on the shaft (4032). A limiting block B (4035) is fixed at one end of the shaft (4032), and a spring piston A (4036) is connected to the limiting block B (4035).
4. The automatic coating device for superhydrophilic coatings according to claim 3, characterized in that: Spring pistons B (4037) are arranged at both the upper and lower ends inside the housing B (4031). A limiting block C (4038) is arranged at the head end of the spring piston B (4037), and the surface of the limiting block C (4038) is beveled.
5. The automatic coating device for superhydrophilic coatings according to claim 4, characterized in that: The spreading unit (404) further includes a base plate (4043), which has insertion holes (4044) at both ends. A screw (4045) is inserted into the insertion hole (4044), and a screw sleeve (4046) is threaded onto one end of the screw (4045). A fixed plate (4041) is connected to the other end of the screw (4045).