Solar cell screen wiping device

Abstract

The utility model relates to a solar cell screen printing plate wiping device, which comprises a first wiping module, a second wiping module and a third wiping module, the second wiping module is detachably connected with the first wiping module; the second wiping module comprises a frame, a base, an unpowered first winding drum installed on one side of the frame, a powered second winding drum installed on the other side of the frame and dust-free cloth. One side of the dust-free cloth is wound on the first winding drum and passes through the base, and the other side of the dust-free cloth is wound on the second winding drum; wherein the wiping module is in bolted connection with the mounting block, or the base is fixedly connected with the mounting block; the moving module is connected with the second wiping module, the brush is far away from the moving module, and the dust-free cloth is close to the moving module; and the moving module moves the first wiping module and the second wiping module according to a preset path. The screen printing plate is efficiently cleaned, and the problem that screen printing plate holes are blocked is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wiping devices, in particular to a solar cell sheet screen wiping device. Background Art

[0002] In the production process of solar cells, the grid lines on the cells are a key process.

[0003] At present, the gate lines are printed on the battery cells with silver paste through screen printing technology. If the screen is blocked during printing, it is easy to cause the grid to break. At this time, it needs to be wiped manually. The wiping method is: wipe the printing area first, and then wipe the surrounding area of ​​the screen; and, you need to wipe the screen with dry dust-free paper first, and then wipe the edge of the screen printing area with dust-free paper dipped in isopropyl alcohol to wipe off the dry paste. In this process, dirty dust-free paper is prohibited from being used again, and dust-free paper needs to be replaced each time it is wiped. The wiping interval is generally 15 minutes to 30 minutes. However, manual wiping has certain safety hazards and the equipment cannot be separated from people.

[0004] In addition, if the aperture of the screen is less than 0.1 mm, when the printing paste becomes dry and hard, it will clog the screen holes. Using dust-free paper or dust-free cloth to wipe the clogged screen holes cannot clean the screen, and the cleaning ability is poor.

[0005] Therefore, it is necessary to provide a solar cell printing and screen wiping module to at least partially solve the problems existing in the prior art. Utility Model Content

[0006] Aiming at the deficiencies of the prior art, the utility model discloses a solar cell screen wiping device.

[0007] The technical solution adopted by the utility model is as follows:

[0008] A solar cell screen wiping device, comprising:

[0009] A first wiping module, comprising a mounting block and a brush disposed on the mounting block;

[0010] The second wiping module is detachably connected to the first wiping module; the second wiping module comprises a frame, a base, a first unpowered reel mounted on one side of the frame, a second powered reel mounted on the other side of the frame, and a dust-free cloth; one side of the dust-free cloth is wound around the first reel, passes through the base, and the other side is wound around the second reel; wherein the wiping module is bolted to the mounting block, or the base is fixedly connected to the mounting block;

[0011] The moving module is connected to the second wiping module, wherein the brush is away from the moving module and the dust-free cloth is close to the moving module; the moving module moves the first wiping module and the second wiping module along a preset path.

[0012] In one embodiment of the utility model, the mounting block includes a first supporting portion for mounting the brush and a second supporting portion connected to one side of the first supporting portion; a connecting portion is provided on the second supporting portion, and the second supporting portion is in contact with the base; both sides of the second supporting portion extend along its height direction to form an extension portion.

[0013] In one embodiment of the present invention, the second wiping module further includes a supporting assembly, which includes a slide mounting block fixedly connected to the frame and slidably connected to the extension portion, a pressing element fixed to the base, and a mounting seat elastically connected to the mounting block.

[0014] In one embodiment of the utility model, the support assembly also includes a cross-roller slide fixed to the side wall of the slide mounting block and a second guide rail slidably connected to the cross-roller slide, and one side of the second guide rail is fixedly connected to one side of the extension portion.

[0015] In one embodiment of the present invention, a spring is provided between the mounting block and the mounting seat, one end of the spring abuts against the mounting block, and the other end of the spring abuts against the mounting seat.

[0016] In one embodiment of the utility model, the second wiping module also includes a measuring component arranged at the bottom of the mounting base; the measuring component includes a pressing block, a pressure sensor and a first supporting block, the pressure sensor is arranged between the pressing block and the first supporting block, and the pressure sensor is fixed on the first supporting block.

[0017] In one embodiment of the present invention, the second wiping module further includes a tensioning assembly; the tensioning assembly includes a gear connected to the first reel and a rotary damper meshing with the gear.

[0018] In one embodiment of the utility model, the mounting block includes a first supporting portion for mounting the brush and a second supporting portion bent and connected to one side of the first supporting portion; the second supporting portion is provided with a waist-shaped hole.

[0019] In one embodiment of the utility model, the mobile module includes a mechanical arm that can move up and down, an extension arm connected to the free end of the mechanical arm, and a second support block arranged at one end of the extension arm; the second support block is used to fix the second wiping module.

[0020] In one embodiment of the utility model, a cleaning module is further included, and the cleaning module blows air to clean the brush.

[0021] The above technical solution of the utility model has the following advantages compared with the prior art:

[0022] The solar cell screen wiping device described in the utility model can use a moving mechanism to control the wiping direction and wiping path of the wiping mechanism, without the need for manual wiping of the screen or configuration of an operator to operate the equipment, to remove dirt on the screen surface, thereby improving wiping efficiency and wiping cleanliness.

[0023] The solar cell screen wiping device described in the utility model adopts the brush of the first wiping module and the dust-free cloth of the second wiping module to cooperate in cleaning the screen, wherein the brush can efficiently clean the clogged holes of the screen, solve the problem of the clogging holes of the screen, and improve the cleaning ability of the wiping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0025] Figure 1 The utility model is a schematic diagram of the structure of the solar cell screen wiping device.

[0026] Figure 2 It is a structural schematic diagram of the first wiping module and the second wiping module from a first viewing angle in the first embodiment of the utility model.

[0027] Figure 3 It is a structural schematic diagram of the first wiping module and the second wiping module from a second viewing angle in the first embodiment of the utility model.

[0028] Figure 4 It is a structural schematic diagram of the first wiping module in the first embodiment of the present invention.

[0029] Figure 5 It is a structural schematic diagram of the first wiping module and the second wiping module in the second embodiment of the utility model.

[0030] Figure 6 It is a structural schematic diagram of the first wiping module in the second embodiment of the present utility model.

[0031] Figure 7 It is a structural schematic diagram of the second wiping module (including the extension arm) in the utility model.

[0032] Figure 8 It is a front view of the second wiping module (including the extension arm) in the utility model.

[0033] Fig. 9 It is a top view of the second wiping module in the utility model.

[0034] Fig.10 It is a schematic diagram of the wiping path of the solar cell screen wiping device in the utility model.

[0035] Description of the Figures in the Specification:

[0036] 10. First wiping module; 11. Mounting block; 111. First supporting portion; 112. Second supporting portion; 113. Connecting portion; 114. Extending portion; 12. Brush;

[0037] 20. Second wiping module; 21. Frame; 22. Power unit; 23. Tensioning assembly; 231. Gear; 232. Rotary damper; 24. First sliding assembly; 241. First guide rail; 242. First slider; 25. First reel; 251. First guide shaft; 252. First handle; 26. Second reel; 261. Second guide shaft; 262. Second handle; 27. Dust-free cloth; 271. Pressing element; 281. Base; 282. Spring; 283. Mounting seat; 284. Slide mounting block; 285. Second guide rail; 286. Cross roller slide; 291. Pressing block; 292. Pressure sensor; 293. First support block;

[0038] 30. Mobile module; 31. Mechanical arm; 32. Extension arm; 33. Second support block;

[0039] 40. Cleaning module;

[0040] 50. Screen printing plate;

[0041] 60. Platform. DETAILED DESCRIPTION

[0042] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0043] The above and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only the directions of the reference drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention. In addition, in all embodiments, the same reference numerals represent the same elements.

[0044] Embodiment 1

[0045] Combination Figures 1 to 3, a solar cell sheet screen wiping device, comprising:

[0046] The first wiping module 10 includes a mounting block 11 and a brush 12 disposed on the mounting block 11;

[0047] The second wiping module 20 is detachably connected to the first wiping module 10; the second wiping module 20 includes a frame 21, a base 281 plugged into the mounting block 11, a first unpowered reel 25 installed on one side of the frame 21, a powered second reel 26 installed on the other side of the frame 21, and a dust-free cloth 27; one side of the dust-free cloth 27 is wound around the first reel 25, passes through the base 281, and the other side is wound around the second reel 26;

[0048] The moving module 30 is connected to the second wiping module 20 , wherein the brush 12 is away from the moving module 30 , and the dust-free cloth 27 is close to the moving module 30 ; the moving module 30 moves the first wiping module 10 and the second wiping module 20 along a preset path.

[0049] The present embodiment provides a solar cell screen wiping device, which uses the brush 12 of the first wiping module 10 and the dust-free cloth 27 of the second wiping module 20 to cooperate in cleaning the screen 50. The brush 12 can efficiently clean the clogged holes of the screen 50, solve the problem of hole clogs in the screen 50, and improve the cleaning ability of the wiping device.

[0050] In this embodiment, if Figure 4 As shown, the mounting block 11 includes a first supporting portion 111 for mounting the brush 12 and a second supporting portion 112 connected to one side of the first supporting portion 111; a connecting portion 113 is provided on the second supporting portion 112, and the second supporting portion 112 is in contact with the base 281; both sides of the second supporting portion 112 extend along its height direction to form an extension portion 114.

[0051] The brush 12 is a soft brush, and the tip diameter of the brush 12 is 0.01 mm-0.1 mm, so as to avoid damaging the screen 50 during the cleaning process.

[0052] In this embodiment, combined with Figures 7 to 9The second wiping module 20 further includes a supporting assembly, which includes a slide mounting block 284 fixedly connected to the frame 21 and slidably connected to the extension portion 114, a pressing element 271 fixed to the base 281, and a mounting seat 283 elastically connected to the mounting block 11. Specifically, a spring 282 is provided between the mounting block 11 and the mounting seat 283, one end of the spring 282 abuts against the mounting block 11, and the other end of the spring 282 abuts against the mounting seat 283. Specifically, the base 108 includes a main base and a sub-base, the main base includes two first side plates and two second side plates, the first side plates and the second side plates are fixed to the second support portion 112, and a connecting element such as a bolt can be used to sequentially pass through the first side plate and the pressing element 271 or sequentially pass through the second side plate and the pressing element 271 to achieve the connection between the main base and the pressing element 271, and this design is also convenient for the subsequent replacement of the flexible cloth wrapping the pressing element 271 and for the connection portion 113 to extend into the space surrounded by the first side plate and the second side plate. The sub-base contacts the bottom surface of the second support portion 112.

[0053] Furthermore, the support assembly also includes a cross roller slide 286 fixed to the side wall of the slide mounting block 284 and a second guide rail 285 slidably connected to the cross roller slide 286 , and one side of the second guide rail 285 is fixedly connected to one side of the extension portion 114 .

[0054] Furthermore, the surface of the pressing element 271 facing the dust-free cloth 27 is wrapped with a flexible cloth. Specifically, the flexible cloth may be sheepskin, which is flexible and elastic and reduces friction with the dust-free cloth 27 .

[0055] In this embodiment, the second wiping module 20 further includes a power unit 22 connected to the second reel 26 . The power unit 22 uses a commercially available servo motor, and the output end of the servo motor is connected to the second reel 26 .

[0056] In this embodiment, the second wiping module 20 further includes a tensioning assembly 23 ; the tensioning assembly 23 includes a gear 231 connected to the first reel 25 and a rotary damper 232 meshing with the gear 231 .

[0057] The first reel 25 is used to wind a clean dust-free cloth 27 , and the second reel 26 is used to wind a dirty dust-free cloth 27 .

[0058] In this embodiment, if Figure 8 As shown, the first reel 25 is further provided with a first handle 252 , and the second reel 26 is further provided with a second handle 262 . The first handle 252 and the second handle 262 facilitate the operator to rotate and replace the dust-free cloth 27 .

[0059] In this embodiment, the second wiping module 20 also includes a first guide shaft 251 arranged between the first roller 25 and the base 281 and a second guide shaft 261 arranged between the second roller 26 and the base 281. The function of the first guide shaft 251 and the second guide shaft 261 is to provide a fixed track for the dust-free cloth 27 to ensure that the dust-free cloth 27 maintains the correct direction and position during movement.

[0060] In this embodiment, combined with Figure 1 and Figure 2 The moving module 30 includes a mechanical arm 31 that can move up and down, an extension arm 32 connected to the free end of the mechanical arm 31 , and a second support block 33 provided at one end of the extension arm 32 ; the second support block 33 is used to fix the second wiping module 20 .

[0061] Furthermore, combined with Figure 3 and Fig. 9 A first sliding assembly 24 is disposed between the second supporting block 33 and the frame 21 , and the first sliding assembly 24 includes a first slider 242 and a first guide rail 241 sliding along the first slider 242 . The first guide rail 241 is fixed to the back of the frame 21 , and the first slider 242 is fixed to the second supporting block 33 .

[0062] In this embodiment, if Figure 1 As shown, the solar cell screen wiping device further includes a cleaning module 40, and the cleaning module 40 blows air to clean the brush 12. Specifically, the cleaning module 40 includes a compressed air system that provides high-pressure compressed air and a blowing nozzle connected to the compressed air system. The blowing nozzle blows out high-pressure gas to blow away the stains on the brush 12, and the moving module 30 moves while the blowing nozzle blows air to clean the brush 12, thereby improving the cleaning ability of the brush 12.

[0063] Combination Figure 1 and Fig.10 , the working principle of this embodiment is as follows:

[0064] The battery cell is detected abnormally by the visual inspection device (not shown in the figure) on the platform 60, the printing press stops printing, the screen 50 is lifted, and the moving module 30 drives the first wiping module 10 and the second wiping module 20 to move below the screen 50. The overall wiping path is as follows: first wipe the front screen 50, then wipe the back screen 50; first wipe with the brush 12, then wipe with the dust-free cloth 27, wherein the moving path of the moving module 30 is as follows: Figure 8 In the direction indicated by the arrow, the screen 50 can be wiped clean.

[0065] Specifically, the dust-free cloth 27 is unwound from the first reel 25, passes through the first guide shaft 251, the upper surface of the pressing element 271 and the second guide shaft 261 in sequence, and is finally wound on the second reel 26. That is, one side of the dust-free cloth 27 is wound around the first reel 25, and the other side of the dust-free cloth 27 is wound around the second reel 26. The power unit 22 is started, and the rotation of the power unit 22 drives the second reel 26 to rotate, thereby rolling up the dust-free cloth 27, and the dust-free cloth 27 on the first reel 25 is passively rotated, and the dust-free cloth 27 is unwound. The first reel 25 drives the rotary damper 232 to rotate through the gear 231, and under the action of the rotary damper 232, the dust-free cloth 27 will not loosen.

[0066] Embodiment 2

[0067] The difference from the first embodiment lies in the structural form of the mounting block 11 and the connection mode between the first wiping module 10 and the second wiping module 20 .

[0068] Combination Figure 1 , Figure 5 and Figure 6 , a solar cell sheet screen wiping device, comprising:

[0069] The first wiping module 10 includes a mounting block 11 and a brush 12 disposed on the mounting block 11;

[0070] The second wiping module 20 is detachably connected to the first wiping module 10; the second wiping module 20 includes a frame 21 bolted to the mounting block 11, a base 281, a first unpowered reel 25 installed on one side of the frame 21, a powered second reel 26 installed on the other side of the frame 21, and a dust-free cloth 27; one side of the dust-free cloth 27 is wound around the first reel 25, passes through the base 281, and the other side is wound around the second reel 26;

[0071] The moving module 30 is connected to the second wiping module 20 , wherein the brush 12 is away from the moving module 30 , and the dust-free cloth 27 is close to the moving module 30 ; the moving module 30 moves the first wiping module 10 and the second wiping module 20 along a preset path.

[0072] In this embodiment, the mounting block 11 includes a first supporting portion 111 for mounting the brush 12 and a second supporting portion 112 bent and connected to one side of the first supporting portion 111. Figure 6 As shown, the first support portion 111 and the second support portion 112 are vertically arranged.

[0073] The structure of the second wiping module 20 of this embodiment is the same as the structure of the second wiping module 20 provided in the first embodiment.

[0074] Among them, in order to achieve adjustable wiping force of the brush 12 on the screen 50, the second support part 112 is provided with a waist-shaped hole, and the mounting block 11 is moved along the height direction of the frame 21 as needed, and the position of the mounting block 11 is adjusted. The bolt passes through the waist-shaped hole, thereby fixing the mounting block 11 and the slide mounting block 284.

[0075] The working principle of this embodiment is substantially the same as that of the first embodiment, and will not be described in detail here.

[0076] Embodiment 3

[0077] When the screen 50 is in a plane parallel to the horizontal plane, the screen 50 is easily deformed after being pressed. When the same force is applied to the screen 50, the deformation of the central part of the screen 50 is greater than the deformation of the edge of the screen 50. In addition, when the wiping pressure is too large, the screen 300 will be damaged.

[0078] In order to solve the above problems, this embodiment provides a solar cell screen wiping device.

[0079] Based on the first or second embodiment, combined with Figure 7 and Figure 8 In order to control the wiping force of the first wiping module 10 and the second wiping module 20, in other possible embodiments, the second wiping module 20 further includes a measuring assembly disposed at the bottom of the mounting seat 283; the measuring assembly includes a pressing block 291, a pressure sensor 292 and a first support block 293, the pressure sensor 292 is disposed between the pressing block 291 and the first support block 293, and the pressure sensor 292 is fixed on the first support block 293. It should be noted that when the pressing element 271 is pressed, the cross roller slide 286 will drive the mounting block 11 and the base 281 to move downward, at which time the spring 282 will be pressed, and the pressing force is measured by the pressure sensor 292 through the pressing block 291, so the pressure sensor 292 is not fixedly connected to the pressing block 291.

[0080] The working principle of this embodiment is as follows:

[0081] When the pressing element 271 contacts the screen 50 and is pressed, the cross-roller slide 286 will drive the base 281 and the mounting block 11 to move downward. At this time, the spring 282 will be pressed, and the pressing force is measured by the pressure sensor 292, that is, the wiping pressing pressure of the first wiping module 10 and the second wiping module 20 is measured by the pressure sensor 292, and the wiping pressing pressure of the first wiping module 10 and the second wiping module 20 can be set.

[0082] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0083] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A solar cell screen wiping device, characterized in that: include: A first wiping module (10) comprises a mounting block (11) and a brush (12) arranged on the mounting block (11); A second wiping module (20) is detachably connected to the first wiping module (10); the second wiping module (20) comprises a frame (21), a base (281), a first unpowered reel (25) mounted on one side of the frame (21), a second powered reel (26) mounted on the other side of the frame (21), and a dust-free cloth (27); one side of the dust-free cloth (27) is wound around the first reel (25), passes through the base (281), and the other side is wound around the second reel (26); wherein the wiping module (20) and the mounting block (11) are bolted together, or the base (281) and the mounting block (11) are fixedly connected; A moving module (30) is connected to the second wiping module (20), wherein the brush (12) is away from the moving module (30) and the dust-free cloth (27) is close to the moving module (30); the moving module (30) moves the first wiping module (10) and the second wiping module (20) along a preset path.

2. The solar cell screen wiping device according to claim 1, characterized in that: The mounting block (11) comprises a first supporting portion (111) for mounting the brush (12) and a second supporting portion (112) connected to one side of the first supporting portion (111); a connecting portion (113) is provided on the second supporting portion (112), and the second supporting portion (112) is in contact with the base (281); and both sides of the second supporting portion (112) extend along the height direction thereof to form extension portions (114).

3. The solar cell screen wiping device according to claim 2, characterized in that: The second wiping module (20) also includes a supporting assembly, which includes a slide mounting block (284) fixedly connected to the frame (21) and slidably connected to the extension portion (114), a pressing element (271) fixed to the base (281), and a mounting seat (283) elastically connected to the mounting block (11).

4. The solar cell screen wiping device according to claim 3, characterized in that: The support assembly also includes a cross roller slide (286) fixed to the side wall of the slide mounting block (284) and a second guide rail (285) slidably connected to the cross roller slide (286), and one side of the second guide rail (285) is fixedly connected to one side of the extension portion (114).

5. The solar cell screen wiping device according to claim 3, characterized in that: A spring (282) is provided between the mounting block (11) and the mounting seat (283); one end of the spring (282) abuts against the mounting block (11), and the other end of the spring (282) abuts against the mounting seat (283).

6. The solar cell screen wiping device according to claim 3, characterized in that: The second wiping module (20) further comprises a measuring component arranged at the bottom of the mounting seat (283); the measuring component comprises a pressing block (291), a pressure sensor (292) and a first supporting block (293); the pressure sensor (292) is arranged between the pressing block (291) and the first supporting block (293), and the pressure sensor (292) is fixed on the first supporting block (293).

7. The solar cell screen wiping device according to claim 1, characterized in that: The second wiping module (20) further comprises a tensioning assembly (23); the tensioning assembly (23) comprises a gear (231) connected to the first reel (25) and a rotary damper (232) meshing with the gear (231).

8. The solar cell screen wiping device according to claim 1, characterized in that: The mounting block (11) comprises a first supporting portion (111) for mounting the brush (12) and a second supporting portion (112) bent and connected to one side of the first supporting portion (111); the second supporting portion (112) is provided with a waist-shaped hole.

9. The solar cell screen wiping device according to claim 1, characterized in that: The moving module (30) comprises a mechanical arm (31) that can move up and down, an extension arm (32) connected to the free end of the mechanical arm (31), and a second support block (33) provided at one end of the extension arm (32); the second support block (33) is used to fix the second wiping module (20).

10. The solar cell screen wiping device according to claim 1, characterized in that: It also comprises a cleaning module (40), wherein the cleaning module (40) cleans the brush (12) by blowing air.

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