Coating double-scraper mechanism

Abstract

The utility model relates to the technical field of coating, in particular to a coating double-scraper mechanism. The coating double-scraper mechanism comprises a mounting plate, a connecting plate, first sliding rails, electric push rods, connecting blocks, a first connecting plate, a rotating block, first scrapers and the like, the connecting plate is arranged on the mounting plate, the first sliding rails are symmetrically arranged on the right side of the connecting plate in the front-back direction, the electric push rods are symmetrically arranged on the bottom of the mounting plate in the front-back direction, and push rods of the electric push rods are provided with the connecting blocks. A first connecting plate is arranged between the left sides of the connecting blocks, the first connecting plate is in sliding connection with the first sliding rail through a sliding block, rotating blocks are arranged at the tops of the connecting blocks, a first scraper is rotationally installed between the two rotating blocks, and the device further comprises a control assembly which is arranged on the first connecting plate. The lifting and the angle of the first scraper are accurately controlled through the electric push rod, the silver paste coating thickness is accurately controlled by several microns, the coating uniformity and precision are improved, the second scraper is adjusted in a balanced mode through the second connecting rod joint, shaking and deviation are reduced, the coating stability is enhanced, and the defective rate is reduced.

Description

A coating double scraper mechanism Technical Field

[0001] This utility model relates to the field of coating technology, and in particular to a coating double scraper mechanism. Background Technology

[0002] In the photovoltaic industry, silver paste coating is a core process in photovoltaic cell manufacturing, and its importance is self-evident. The quality of the silver paste coating, especially its uniformity and thickness, has a decisive impact on the photoelectric conversion efficiency, stability, and overall performance of photovoltaic cells. With the continuous advancement of photovoltaic technology and the rapid development of the market, the requirements for silver paste coating are becoming increasingly stringent.

[0003] In modern photovoltaic cell production, the thickness of the silver paste coating is typically controlled within a few micrometers to ensure high efficiency and long lifespan. However, traditional coating blade systems often fall short when faced with such precise coating requirements. Due to limitations in controlling coating thickness and uniformity, traditional systems struggle to meet the increasingly stringent production standards and quality requirements of the photovoltaic industry.

[0004] Therefore, there is an urgent need for a coating blade mechanism that can be controlled more precisely. Summary of the Invention

[0005] To overcome the drawback of being difficult to control, this utility model provides a coating double scraper mechanism.

[0006] A coating double-blade mechanism includes a mounting plate, a connecting plate, a slide rail, an electric push rod, connecting blocks, a connecting plate, a rotating block, and a scraper. The mounting plate has a connecting plate on its top. The connecting plate has slide rails symmetrically arranged on the right side of the connecting plate. The bottom of the mounting plate has electric push rods symmetrically arranged on its bottom side. Each electric push rod has a connecting block. The connecting plate is located between the left sides of the connecting blocks. The connecting plate is slidably connected to the slide rail via a slider. The top of each connecting block has a rotating block. The scraper is rotatably mounted between two rotating blocks. The mechanism also includes a control component, which is located on the connecting plate.

[0007] Optionally, the control assembly includes a second connecting plate, a connecting frame, a second scraper, a fixed frame, a lifting block, a second connecting rod joint, and an adjusting rod. The second connecting plate is located on the left side of the first connecting plate, and the connecting frame is located on the second connecting plate. The second scraper is rotatably located on the right side of the connecting frame. The fixed frame is located in the middle of the connecting frame, and the lifting block is slidably located in the middle of the fixed frame. The second connecting rod joint is connected between the middle of the lifting block and the lower part of the second scraper. The adjusting rod is located on the fixed frame, and the outer side of the adjusting rod is threaded. The adjusting rod is connected to the lifting block by a thread.

[0008] Optionally, it also includes a slide rail two and a connecting plate three. The slide rail two is symmetrically arranged on the left side of the connecting plate, and the connecting plate three is arranged on the slide rail two through a slider. The connecting plate three is connected to the bottom of the connecting plate one.

[0009] Optionally, it also includes a connecting rod joint, which is provided between the lower part of the scraper and the right side of the connecting plate.

[0010] Optionally, the mounting plate surface has a pre-set mounting opening.

[0011] Optionally, the top of the adjusting rod is provided with an anti-slip sleeve.

[0012] The beneficial effects and significant advancements of this utility model are as follows:

[0013] This invention achieves precise control of the silver paste coating thickness at the micrometer level by using an electric push rod to precisely control the lifting and lowering of the doctor blade and the angle of the doctor blade. This improves the uniformity and thickness accuracy of the coating. The design of the connecting rod joint plays a good balancing and adjustment role for the doctor blade, reducing the shaking and deviation of the doctor blade during the coating process, improving the stability and reliability of the coating process, and reducing the defect rate. Attached Figure Description

[0014] Figure 1 is a three-dimensional structural diagram of this utility model.

[0015] Figure 2 is a three-dimensional structural diagram of the electric push rod, connecting block, and connecting plate of this utility model.

[0016] Figure 3 is a three-dimensional structural diagram of the rotating block, scraper, and connecting rod joint of this utility model.

[0017] Figure 4 is a three-dimensional structural diagram of the slide rail one, connecting plate, connecting plate one and connecting plate two of this utility model.

[0018] Figure 5 is a three-dimensional structural diagram of the connecting frame, scraper II, and fixing frame of this utility model.

[0019] Figure 6 is a three-dimensional structural diagram of the connecting plate one, slide rail two, and connecting plate three components of this utility model.

[0020] The meanings of the reference numerals in the diagram are as follows: 1. Mounting plate, 2. Connecting plate, 3. Slide rail one, 4. Electric push rod, 5. Connecting block, 6. Connecting plate one, 7. Rotating block, 8. Scraper one, 9. Connecting rod joint one, 10. Connecting plate two, 11. Connecting frame, 12. Scraper two, 13. Fixing frame, 14. Lifting block, 15. Connecting rod joint two, 16. Adjusting rod, 17. Slide rail two, 18. Connecting plate three. Detailed Implementation

[0021] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0022] Example: A coating double-blade mechanism, as shown in Figures 1 to 6, includes a mounting plate 1, a connecting plate 2, a slide rail 1, an electric push rod 4, a connecting block 5, a connecting plate 1, a rotating block 7, a scraper 1 8, a connecting rod joint 1 9, a connecting plate 2 10, a connecting frame 11, a scraper 2 12, a fixing frame 13, a lifting block 14, a connecting rod joint 2 15, an adjusting rod 16, a slide rail 2 17, and a connecting plate 3 18. The mounting plate 1 serves as the mounting base for the entire mechanism, used to fix and support other components. The surface of the mounting plate 1 has pre-set mounting openings for easy overall installation. The top of the mounting plate 1... A connecting plate 2 is connected in the middle of the mounting plate 1. Slide rails 3 are symmetrically connected to the right side of the connecting plate 2. Electric push rods 4 are vertically mounted symmetrically upwards from the bottom of the mounting plate 1. The push rods of the electric push rods 4 extend upwards to the height of slide rails 3, and each push rod is connected to a connecting block 5. Connecting plates 6 are connected between the left sides of the connecting blocks 5. Each connecting plate 6 is slidably connected to the adjacent slide rail 3 via a slider. Slide rail 3 provides a sliding track for connecting plates 6, allowing them to move smoothly in the horizontal direction. Rotating blocks 7 are connected to the top of each connecting block 5. A scraper 8 is rotatably mounted between the rotating blocks 7. A connecting rod joint 9 connects the lower part of the scraper 8 to the right side of the connecting plate 6. The connecting rod joint 9 can adapt to the rotation of the connecting plate 6 driven by the electric push rod 4. A connecting plate 10 is connected to the left side of the connecting plate 6. A connecting frame 11 is connected to the top of the connecting plate 10. A scraper 12 is rotatably mounted on the right side of the connecting frame 11 via a hinge. A fixed frame 13 is connected to the middle of the connecting frame 11. A lifting block 14 is slidably connected to the middle of the fixed frame 13. An adjusting rod 16 is rotatably connected to the fixed frame 13. The outer side of the adjusting rod 16 is threaded, and the adjusting rod 16 is connected to the lifting block 14 by the thread. By rotating the adjusting rod 16, the lifting block 14 can be driven to move up and down. The top of the adjusting rod 16 is provided with an anti-slip sleeve to prevent the hand from slipping. A connecting rod joint 25 is connected between the middle of the lifting block 14 and the lower part of the scraper 2 12. A slide rail 2 17 is symmetrically connected to the left side of the connecting plate 2. A connecting plate 3 18 is connected to the slide rail 2 17 by a slider. The connecting plate 3 18 is connected to the bottom of the connecting plate 1 6 to provide additional support and stability for the connecting plate 1 6.

[0023] When using a dual-blade coating mechanism, first install the entire mechanism in the desired working position, ensuring the mounting plate 1 is stable and level. Next, adjust the initial angles and positions of blade 8 and blade 12 in advance according to the specific requirements of the coating material.

[0024] Regarding the driving of the electric push rod 4 and the angle adjustment of the doctor blade 8, after the electric push rod 4 is activated, the push rod will drive the connecting block 5 and the connecting plate 6 to move smoothly in the horizontal direction along the slide rail 3. As the connecting plate 6 moves, the connecting rod joint 9 will adaptively rotate according to the driving trajectory of the electric push rod 4, thereby precisely adjusting the angle of the doctor blade 8. During this process, it is necessary to carefully observe the angle change of the doctor blade 8 to ensure that it meets the specific requirements of the coating process.

[0025] The angle of the second doctor blade 12 is adjusted by rotating the adjusting rod 16. Since the adjusting rod 16 and the lifting block 14 are connected by a thread, rotating the adjusting rod 16 will drive the lifting block 14 to move up and down on the fixed frame 13. The movement of the lifting block 14, in turn, pushes the connecting rod joint 15 to rotate, thereby flexibly adjusting the angle of the second doctor blade 12 to meet different coating requirements.

[0026] Before the coating operation begins, the material to be coated should be placed on the conveyor belt of the coating machine and the conveyor belt should be started. When the material reaches above doctor blade 8 and doctor blade 12, the dual-doctor coating mechanism will begin its formal operation. Doctor blades 8 and 12 will precisely coat the material according to preset angles and positions. During this process, the electric push rod 4 can precisely control the lifting and lowering of doctor blade 8, thereby adjusting the gap between doctor blade 8 and the coating surface to achieve precise control of the silver paste coating thickness. At the same time, the adjusting rod 16 can flexibly change the angle of doctor blade 12, allowing the doctor blade to maintain the optimal coating angle according to different needs during the coating process to adapt to various coating process requirements.

[0027] Furthermore, connecting rod joint 9 and connecting rod joint 15 play crucial roles in the coating process. They effectively adjust the balance of doctor blade 8 and doctor blade 12, ensuring the stability of the doctor blades during high-speed coating. Notably, doctor blade 8 and doctor blade 12 are independently controlled, with no interference between them in lifting or rotating angle adjustments. This allows the dual-doctor coating mechanism to be precisely set for different coating areas and process requirements, thereby achieving optimal coating results.

[0028] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.

Claims

1. A coating double scraper mechanism, comprising a mounting plate (1), a connecting plate (2), a slide rail (3), an electric push rod (4), a connecting block (5), a connecting plate (6), a rotating block (7), and a scraper (8), wherein the mounting plate (1) is provided with a connecting plate (2) at the top, the connecting plate (2) is provided with a slide rail (3) symmetrically on the right side, the mounting plate (1) is provided with an electric push rod (4) symmetrically on the bottom, the electric push rod (4) is provided with a connecting block (5) for each push rod, the connecting plate (6) is provided between the left sides of the connecting blocks (5), the connecting plate (6) is slidably connected to the slide rail (3) by a slider, the connecting block (5) is provided with a rotating block (7) at the top, and a scraper (8) is rotatably mounted between the two rotating blocks (7), characterized in that: It also includes a control component, which is provided on the connecting plate (6).

2. The coating double-blade mechanism as described in claim 1, characterized in that: The control components include a second connecting plate (10), a connecting frame (11), a second scraper (12), a fixed frame (13), a lifting block (14), a second connecting rod joint (15), and an adjusting rod (16). The second connecting plate (10) is located on the left side of the first connecting plate (6). The connecting frame (11) is located on the second connecting plate (10). The second scraper (12) is rotatably located on the right side of the connecting frame (11). The fixed frame (13) is located in the middle of the connecting frame (11). The lifting block (14) is slidably located in the middle of the fixed frame (13). The second connecting rod joint (15) is connected between the middle of the lifting block (14) and the lower part of the second scraper (12). The adjusting rod (16) is located on the fixed frame (13). The outer side of the adjusting rod (16) is threaded. The adjusting rod (16) and the lifting block (14) are connected by threads.

3. The coating double-blade mechanism as described in claim 2, characterized in that: It also includes a second slide rail (17) and a third connecting plate (18). The second slide rail (17) is symmetrically arranged on the left side of the connecting plate (2). The third connecting plate (18) is provided on the second slide rail (17) through a slider. The third connecting plate (18) is connected to the bottom of the first connecting plate (6).

4. The coating double-blade mechanism as described in claim 3, characterized in that: It also includes a connecting rod joint 1 (9), and the connecting rod joint 1 (9) is provided between the lower part of the scraper 1 (8) and the right side of the connecting plate 1 (6).

5. The coating double-blade mechanism as described in claim 1, characterized in that: The mounting plate (1) has a pre-set mounting port on its surface.

6. The coating double-blade mechanism as described in claim 2, characterized in that: The top of the adjusting rod (16) is provided with an anti-slip sleeve.

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