Photovoltaic screen corrosion equipment and corrosion method

Abstract

The invention relates to photovoltaic screen corrosion equipment and a corrosion method, and relates to the field of photovoltaic screen manufacturing. Comprising an equipment shell, a spraying mechanism and a conveying mechanism, the spraying mechanism and the conveying mechanism are arranged in a spraying chamber, the spraying mechanism comprises two spraying modules and a magnetic attraction moving assembly, and the spraying modules are provided with atomizing nozzles; the conveying mechanism comprises a conveying belt assembly and a magnetic attraction moving assembly and is provided with a three-axis transferring platform and an image collecting camera. In addition, the equipment further comprises a corrosion chamber and a stripping chamber, a corrosion pool and a pressure plate assembly are arranged in the corrosion chamber, a bubble generator and an ultrasonic generator are arranged at the bottom of the corrosion pool, and a stripping pool is arranged in the stripping chamber. By means of the structure, efficient and uniform corrosion of the photovoltaic screen printing plate is achieved, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic screen manufacturing, and in particular to a photovoltaic screen etching device and etching method. Background Art

[0002] In the manufacturing process of photovoltaic screens, in order to meet market demand, it is usually necessary to thin the screens around. For example, a photovoltaic screen is woven with 50-micron diameter steel wire, but the diameter of the woven steel wire around the photovoltaic screen is required to be 40 microns. This treatment not only helps to improve the aesthetics and ease of use of the product, but also ensures that the screen maintains integrity and stability during cutting or long-term use. At present, this demand is mainly achieved through a variety of process methods, such as physical processing and chemical treatment. These methods have achieved good results in practical applications and promoted the rapid development of the photovoltaic industry.

[0003] Common practices include weaving with steel wires of different diameters and selectively corroding specific areas with corrosive agents. Specifically, for the former, thinner steel wires can be pre-arranged at the edge of the network and then woven together with other thick steel wires into a complete screen; for the latter, it is necessary to immerse it in a corrosive solution, corrode the areas that need to be thinned by the corrosive solution, and after the corroded areas are corroded according to the concentration of the corrosive agent and the control of the corrosion time, the corroded areas are finely polished to obtain the final product. In addition, there are other auxiliary means, such as laser etching, mechanical polishing, etc., which are also used to a certain extent in the edge thinning of the screen. However, the above methods have certain limitations. In particular, the method of weaving with steel wires of different diameters can achieve the expected effect, but the production steps are cumbersome, the cost is high, and it is difficult to promote on a large scale. Although the method of using corrosive agents is relatively simple to operate, due to the diffusibility and uncontrollability of the corrosive agents, it is easy to cause accidental erosion of non-target areas, thereby affecting product quality and production efficiency. Therefore, how to effectively solve these problems and improve the production and quality level of photovoltaic screens has become a key technical problem that needs to be solved in this field. Summary of the invention

[0004] In order to solve the above problems, the present application provides a photovoltaic screen etching device and a etching method.

[0005] The present application provides a photovoltaic screen etching device and etching method, which adopts the following technical solutions: A photovoltaic screen etching device and etching method, including a device shell, wherein a spray chamber is arranged in the device shell; a spray mechanism, located in the spray chamber, includes two identical spray modules, namely a first spray module and a second spray module; a conveying mechanism, located in the spray chamber, includes a conveyor belt assembly and a magnetic moving assembly; the first spray module is arranged above the conveyor belt assembly, the second spray module is arranged on the extension line of the feeding direction of the conveyor belt assembly, and the magnetic moving assembly is arranged directly above the second spray module; the spray module includes an atomizing nozzle.

[0006] By adopting the above technical solution, the photovoltaic screen etching equipment can achieve precise etching treatment around the photovoltaic screen. The two spray modules (the first spray module and the second spray module) in the spray chamber are respectively arranged at different positions of the conveyor belt assembly, ensuring that the photosensitive adhesive can be sprayed on both surfaces of the screen, thereby improving the uniformity and accuracy of the corrosion and protecting the areas that do not need to be corroded. The magnetic suction moving component is located directly above the second spray module, which can effectively fix and move the screen, avoid errors caused by manual operation, and further improve production efficiency and consistency. The design of the atomizing nozzle allows the corrosive liquid to be sprayed in the form of fine particles, reducing the waste of liquid, and at the same time more effectively controlling the corrosion range and avoiding unnecessary chemical reactions.

[0007] Preferably, the spray mechanism further includes a three-axis transfer platform, the spray module further includes a transfer platform, the transfer platform is driven by the three-axis transfer platform, and the atomizing nozzle is fixedly arranged on the transfer platform.

[0008] By adopting the above technical solution, the spray mechanism is equipped with a three-axis transfer platform and a transfer table, so that the atomizing nozzle can accurately adjust its position and achieve precise spraying of specific areas of the photovoltaic screen. The introduction of the three-axis transfer platform allows the atomizing nozzle to move flexibly in the horizontal and vertical directions to adapt to photovoltaic screens of different sizes and shapes, while the transfer table further stabilizes the position of the nozzle to ensure uniform spraying without omissions.

[0009] Preferably, the spray module further includes an image acquisition camera fixedly arranged on the transfer platform.

[0010] By adopting the above technical solution, the image acquisition camera can monitor the status of the photovoltaic screen during the spraying process in real time, ensure that the photosensitive adhesive is sprayed evenly and without omissions, and improve the spraying accuracy of the photosensitive adhesive.

[0011] Preferably, the magnetic attraction moving component includes a downward pressure cylinder and a suction cup electromagnet, the suction cup electromagnet is fixed on the output shaft of the downward pressure cylinder, and the transmission mechanism also includes a ball screw module for driving the magnetic attraction moving component.

[0012] By adopting the above technical solution, the magnetic suction moving component includes a downward pressure cylinder and a suction cup electromagnet. The suction cup electromagnet is fixed on the output shaft of the downward pressure cylinder, which can achieve accurate positioning and stable adsorption of the photovoltaic screen, ensuring the position accuracy and stability during the transmission process. At the same time, the transmission mechanism also includes a ball screw module for driving the magnetic suction moving component, which can improve the transmission accuracy and stability, thereby improving the reliability and efficiency of the entire corrosion process.

[0013] Preferably, a corrosion chamber is further provided in the equipment housing, and a corrosion pool is provided in the corrosion chamber.

[0014] By adopting the above technical solution, a corrosion chamber and a corrosion pool are set in the equipment shell, so that the photovoltaic screen can be corroded in a closed environment, avoiding the influence of the external environment on the corrosion process and improving the corrosion accuracy and consistency.

[0015] Preferably, a pressure plate assembly and an elevator are also provided in the corrosion pool, and the pressure plate assembly includes a first pressure plate and a second pressure plate, the first pressure plate and the second pressure plate are independently driven by the elevator, and the first pressure plate and the second pressure plate are both threadedly connected to the output end of the elevator.

[0016] By adopting the above technical solution, it is possible to achieve accurate positioning and stable clamping of the photovoltaic screen during the corrosion process. The first pressure plate and the second pressure plate can be driven independently to ensure that the pressure at different positions is evenly distributed to avoid deformation or damage caused by uneven pressure. The pressure plate can be adjusted in height according to actual needs to adapt to photovoltaic screens of different thicknesses. The first pressure plate and the second pressure plate are connected to the output end of the elevator through threads, which is convenient for replacing the first pressure plate and the second pressure plate.

[0017] Preferably, a bubble generator is provided at the bottom of the corrosion tank.

[0018] By adopting the above technical solution, the bubble generator can generate evenly distributed bubbles, which can effectively stir the etching liquid, so that the etching liquid is fully in contact with the surface of the photovoltaic screen, thereby improving the etching efficiency and uniformity. At the same time, the bubbles can also help remove impurities and residues on the surface of the photovoltaic screen, further improving the etching quality and yield rate.

[0019] Preferably, an ultrasonic generator is fixedly mounted on the side wall of the corrosion tank.

[0020] By adopting the above technical solution, the ultrasonic generator can produce strong vibration and cavitation effect, thereby effectively removing dirt and residues on the surface of the photovoltaic screen, improving the efficiency and quality of corrosion. At the same time, the generation of ultrasonic waves can also promote the uniform distribution of the corrosion liquid, ensure the consistency and controllability of the corrosion process, and further improve the product yield.

[0021] Preferably, a stripping chamber is further provided in the device housing, and a stripping pool is provided in the stripping chamber.

[0022] By adopting the above technical solution, the photovoltaic screen etching equipment can send the photovoltaic screen into the stripping pool in the stripping chamber for efficient stripping of the photosensitive adhesive coating after the etching process is completed. The design of the stripping pool makes the entire stripping process more centralized and controllable, reducing the time and labor costs of traditional manual film stripping. The stripping pool can effectively remove residual photosensitive adhesive, ensure the cleanliness of the photovoltaic screen surface, and avoid contamination problems in subsequent processes.

[0023] A method for etching a photovoltaic screen etching device comprises the following steps: Spraying protective layer, spraying photosensitive glue on both sides of photovoltaic screen with atomizing nozzle; Corrosion, the first pressing plate and the second pressing plate are respectively pressed on the position where the photosensitive adhesive is sprayed, and then the photovoltaic screen is peeled off in the corrosion tank; Stripping: soak the corroded photovoltaic screen in a stripping tank to strip the photosensitive resin coating.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting up an atomizing nozzle in the spray room to spray photosensitive adhesive on both sides of the photovoltaic screen, the corrosion position can be accurately controlled, the erosion of non-target areas caused by the diffusion of traditional corrosive agents can be avoided, and the yield rate of the product can be improved; 2. The combination of magnetic moving components and conveyor belt components ensures the stable transmission of the screen during the spraying process. At the same time, the position of spraying photosensitive glue is accurately determined by the image acquisition camera, further improving the degree of production automation and quality consistency; 3. The corrosion chamber and stripping chamber set in the equipment shell, together with the pressure plate assembly, bubble generator and ultrasonic generator and other devices, significantly enhance the corrosion efficiency and uniformity, and reduce production time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional diagram of an embodiment of the present application; Figure 2 is a cross-sectional view of an embodiment of the present application; Figure 3 It is a three-dimensional view of the specific structure of this application; Figure 4 It is a partial enlarged view of this application.

[0026] Description of the reference numerals: 1. Equipment housing; 2. Spraying chamber; 21. First spraying module; 211. Atomizing nozzle; 213. Image acquisition camera; 214. Transfer table; 22. Second spraying module; 23. Three-axis transfer platform; 24. Pressing cylinder; 25. Suction electromagnet; 26. Ball screw module; 27. Conveyor belt assembly; 3. Etching chamber; 31. Etching tank; 311. Lift; 312. First pressure plate; 313. Second pressure plate; 314. Bubble generator; 315. Ultrasonic generator; 4. Stripping chamber; 41. Stripping tank. Detailed implementation manners

[0027] The following further elaborates on this application in conjunction with the attached drawings.

[0028] In the description of the invention, it should be understood that for the orientation description, such as the upper, lower, front, rear, left, right, etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0029] This embodiment of the application discloses a photovoltaic screen corrosion device and a corrosion method. Refer to Figure 1 and Figure 2 , which includes an equipment housing 1. Inside the equipment housing 1, a spraying chamber 2, an etching chamber 3, and a stripping chamber 4 are sequentially arranged according to the processing steps. An etching tank 31 is arranged inside the etching chamber 3, and a stripping tank 41 is arranged inside the stripping chamber 4. The spraying chamber 2, the etching tank 31, and the stripping tank 41 are arranged in a straight-line distribution. Among them, a spraying mechanism is arranged inside the spraying chamber 2. A conveying mechanism is also arranged inside the spraying chamber 2. The conveying mechanism includes a conveyor belt assembly 27 and a magnetic adsorption moving assembly. The conveying mechanism is used to transport the semi-finished photovoltaic screen to be processed, and the spraying mechanism is used to spray photosensitive glue on both sides of the semi-finished photovoltaic screen. The spraying mechanism includes two identical spraying modules, namely the first spraying module 21 and the second spraying module 22. In order to enable the spraying module to better spray both sides of the photovoltaic screen, the first spraying module 21 is arranged above the conveyor belt assembly 27, the second spraying module 22 is arranged on the extension line of the feeding direction of the conveyor belt assembly 27, and the magnetic adsorption moving assembly is arranged directly above the second spraying module 22. Through the above settings, the photovoltaic screen can complete the spraying of the layout in a straight-line transportation state, reducing the transportation distance of the photovoltaic screen.

[0030] Refer to Figure 4The spray mechanism includes a three-axis transfer platform 23, and the spray module also includes a transfer platform 214. The transfer platform 214 is driven by the three-axis transfer platform 23. The spray module includes an atomizing nozzle 211, and the atomizing nozzle 211 is fixedly arranged on the transfer platform 214. The atomizing nozzle 211 sprays the photosensitive adhesive into a mist in a granular form, and evenly coats the photosensitive adhesive on the surface of the photovoltaic screen. In order to accurately determine the spraying range of the atomizing nozzle 211, the spray module also includes an image acquisition camera 213 fixedly arranged on the transfer platform 214. The image acquisition camera 213 takes a picture of the photovoltaic screen, and cooperates with a computer to perform line analysis, and plans the spraying range of the atomizing nozzle 211. The computer combines image analysis and route planning, which belongs to the conventional prior art and is not described in this embodiment.

[0031] The conveyor assembly 27 first transports the photovoltaic screen toward the corrosion pool 31. When the photovoltaic screen moves to the bottom of the first spray module 21, the three-axis transfer platform 23 controls the atomizing nozzle 211 to spray the photosensitive adhesive toward one side of the photovoltaic screen, and the image acquisition camera 213 collects the image information of the photovoltaic screen for the first time. After the first spray module 21 sprays the photosensitive adhesive, the conveyor assembly 27 continues to transport.

[0032] Reference Figure 3 and Figure 4 The magnetic suction moving component includes a downward pressure cylinder 24 and a suction cup electromagnet 25. The suction cup electromagnet 25 is fixed on the output shaft of the downward pressure cylinder 24. The transmission mechanism also includes a ball screw module 26 for driving the magnetic suction moving component. The ball screw module 26 and the three-axis transfer platform 23 are used as driving elements, which is convenient for automatic control through a computer. The ball screw module 26 moves to the top of the photovoltaic screen after the first spraying of the photosensitive glue. The downward pressure cylinder 24 drives the suction cup electromagnet 25 to adsorb the photovoltaic screen and move the photovoltaic screen to the top of the second spray module 22. The image acquisition camera 213 takes the image for the second time and compares it with the first image. The path of the second glue coating is planned according to the first glue coating range, and the atomizing nozzle 211 is controlled to spray the photosensitive glue.

[0033] A platen assembly and an elevator 311 are also provided in the corrosion pool 31. The platen assembly includes a first platen 312 and a second platen 313. The first platen 312 and the second platen 313 are independently driven by the elevator 311, and both the first platen 312 and the second platen 313 are threadedly connected to the output end of the elevator 311. The threaded connection facilitates the replacement of the first platen 312 and the second platen 313. During actual processing, the first platen 312 and the second platen 313 should be set according to the shape and area of ​​the photosensitive adhesive sprayed on the photovoltaic screen, so that the first platen 312 and the second platen 313 can just cover the photosensitive adhesive. After the photosensitive adhesive is sprayed, the photovoltaic screen is placed on the second pressure plate 313 by the magnetic moving component in conjunction with the ball screw module 26. The elevator 311 drives the first pressure plate 312 to press down, so that the first pressure plate 312 and the second pressure plate 313 press the area where the photosensitive adhesive is applied. The elevator 311 simultaneously drives the first pressure plate 312 and the second pressure plate 313 to maintain a clamping posture to immerse the photovoltaic screen in the corrosion pool 31. The corrosion pool 31 is filled with corrosive agents that can corrode from the surface of the steel wire inward. The surfaces of the first pressure plate 312 and the second pressure plate 313 are tightly fitted with the surface of the photovoltaic screen coated with the photosensitive adhesive.

[0034] In order to speed up the corrosion of the steel wire, a bubble generator 314 is provided at the bottom of the corrosion pool 31, and an ultrasonic generator 315 is fixedly provided on the side wall of the corrosion pool 31. The bubble generator 314 can speed up the flow of the corrosive agent, so that the corrosive agent consumed near the steel wire can be replenished in time. The ultrasonic generator 315 can make the debris formed on the surface of the corroded steel wire fall off in time through the vibration of the mobile frequency, thereby improving the uniformity of the surface of the steel wire. When the photovoltaic screen is in the process of corrosion, due to the setting of the first pressure plate 312 and the second pressure plate 313, the corrosive agent cannot be efficiently circulated between the first pressure plate 312 and the second pressure plate 313, thereby slowing down the renewal speed of the corrosive agent at the crimping point of the first pressure plate 312 and the second pressure plate 313, and always keeping a small amount of corrosive agent in contact with the photovoltaic screen at the crimping point. Due to the small dosage of the corrosive agent and the slow renewal circulation speed, the corrosive agent will not continue the corrosion process after the reaction is completed. Combined with the application of photosensitive adhesive, the steel wire is further protected from corrosion, thereby achieving precise corrosion of the photovoltaic screen.

[0035] A method for etching a photovoltaic screen etching device comprises the following steps: Spraying the protective layer, the atomizing nozzle 211 sprays the photosensitive adhesive on the two surfaces of the photovoltaic screen; Corrosion, the first pressing plate 312 and the second pressing plate 313 are respectively pressed on the position where the photosensitive adhesive is sprayed, and then the photovoltaic screen is peeled off in the corrosion tank 31; Stripping: soak the corroded photovoltaic screen in a stripping tank 41 to strip the photosensitive resin coating.

[0036] The implementation principle of the embodiment of the present application is as follows: by using photovoltaic screen etching equipment, the photovoltaic screen is coated with photosensitive glue to protect the photovoltaic screen. When the photovoltaic screen is corroded, the first pressure plate and the second pressure plate are crimped to protect the photovoltaic screen, thereby further improving the protection of the areas that do not need to be corroded, thereby improving the precise corrosion of the photovoltaic screen. After the corrosion process is completed, the photovoltaic screen is moved to the stripping pool 41 by driving the magnetic suction moving component in conjunction with the ball screw module 26, and the photosensitive glue is stripped by adding a conventional solvent for reacting the photosensitive glue, and the final product can be obtained by subsequent polishing of the corrosion position.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A photovoltaic screen etching device, characterized in that: It comprises an equipment housing (1), wherein a spray chamber (2) is arranged in the equipment housing (1); A spray mechanism, located in the spray chamber (2), comprising two identical spray modules, namely a first spray module (21) and a second spray module (22); A conveying mechanism, located in the spray chamber (2), comprises a conveyor belt assembly (27) and a magnetic moving assembly; The first spray module (21) is arranged above the conveyor belt assembly (27), the second spray module (22) is arranged on an extension line of the feeding direction of the conveyor belt assembly (27), and the magnetic attraction moving assembly is arranged directly above the second spray module (22); The spray module comprises an atomizing nozzle (211).

2. The photovoltaic screen etching device according to claim 1, characterized in that: The spray mechanism further comprises a three-axis transfer platform (23), and the spray module further comprises a transfer platform (214). The transfer platform (214) is driven by the three-axis transfer platform (23), and the atomizing nozzle (211) is fixedly arranged on the transfer platform (214).

3. The photovoltaic screen etching device according to claim 2, characterized in that: The spray module also includes an image acquisition camera (213) fixedly arranged on the transfer platform (214).

4. The photovoltaic screen etching device according to claim 1, characterized in that: The magnetic attraction moving component comprises a downward pressure cylinder (24) and a suction cup electromagnet (25), wherein the suction cup electromagnet (25) is fixed on the output shaft of the downward pressure cylinder (24), and the transmission mechanism further comprises a ball screw module (26) for driving the magnetic attraction moving component.

5. The photovoltaic screen etching device according to claim 1, characterized in that: A corrosion chamber (3) is also provided in the equipment housing (1), and a corrosion pool (31) is provided in the corrosion chamber (3).

6. The photovoltaic screen etching device according to claim 5, characterized in that: A pressure plate assembly and an elevator (311) are also provided in the corrosion pool (31). The pressure plate assembly comprises a first pressure plate (312) and a second pressure plate (313). The first pressure plate (312) and the second pressure plate (313) are independently driven by the elevator (311). The first pressure plate (312) and the second pressure plate (313) are both threadedly connected to the output end of the elevator (311).

7. The photovoltaic screen etching equipment according to claim 5, characterized in that: A bubble generator (314) is provided at the bottom of the corrosion pool (31).

8. The photovoltaic screen etching equipment according to claim 5, characterized in that: An ultrasonic generator (315) is fixedly arranged on the side wall of the corrosion pool (31).

9. The photovoltaic screen etching equipment according to claim 1, characterized in that: A stripping chamber (4) is also provided in the device housing (1), and a stripping pool (41) is provided in the stripping chamber (4).

10. A method for etching a photovoltaic screen etching device, characterized in that: The photovoltaic screen etching device according to any one of claims 1 to 9 comprises the following steps: Spraying the protective layer, the atomizing nozzle (211) sprays photosensitive adhesive on two surfaces of the photovoltaic screen; Corrosion, the first pressing plate (312) and the second pressing plate (313) are respectively pressed on the positions where the photosensitive adhesive is sprayed, and then the photovoltaic screen is peeled off in the corrosion pool (31); Stripping: soaking the corroded photovoltaic screen in a stripping tank (41) to strip the photosensitive adhesive coating.

Images