Metal screen plate

Abstract

The invention discloses a metal screen plate which comprises a metal gauze, a welding silk screen gauze is arranged on the top face of the metal gauze, a thickened metal gauze is arranged on the top face of the welding silk screen gauze, a marking sheet plate is arranged on one side of the welding silk screen gauze, and a connecting frame is arranged on one side of the metal gauze. A fixing screw is arranged on the top face of the connecting frame, and a fixing bottom frame is arranged on the bottom face of the connecting frame. According to the metal screen plate, a complete silk-screen printing screen plate can be formed through the arranged metal gauze, the connecting frame and the fixed bottom frame so as to meet the manufacturing requirements of solar cells, part of the metal screen plate can be thickened through the arranged metal gauze, the welded silk-screen gauze and the thickened metal gauze, and the metal gauze, the welded silk-screen gauze and the thickened metal gauze are matched for use; the welded part of the screen plate can be thickened, so that the problems of weld penetration and pseudo soldering at the welding position needing to be in contact with the welding strip due to the lower overall height of the silver grid line after printing are effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of metal wire mesh screen plates, in particular to a metal screen plate. Background Art

[0002] Solar cells are divided into crystalline silicon and amorphous silicon. Crystalline silicon cells can be further divided into monocrystalline cells and polycrystalline cells. The efficiency of monocrystalline silicon is different from that of polycrystalline silicon. Solar cells need to be screen printed during the production process. Screen printing is the most adaptable and widely used printing method in the world. The screen is used as the base and a photosensitive platemaking method is used to make a screen printing plate with a pattern. The printed clothing is placed on the printing table and a scraper is used to transfer the ink through the screen printing plate to the clothing to form a pattern. For multi-color printing, a printing plate must be made for each ink color and each color is applied to a separate layer, so a screen printing plate is needed.

[0003] At present, the thickness of the screen printing area used for battery cell printing is all flat, and the height of the graphics after printing is basically the same; due to cost reduction and efficiency improvement, the total thickness of the screen is getting lower and lower, and the overall height of the silver grid line after printing is lower, resulting in solder penetration and cold solder joints at the welding positions that need to contact the solder tape. Summary of the invention

[0004] The purpose of the present invention is to provide a metal screen to solve the problem raised in the above background technology that the thickness of the screen printing area currently used for solar cell printing is all flat and the height of the graphics after printing is basically the same; due to cost reduction and efficiency improvement, the total thickness of the screen is getting lower and lower, and the overall height of the silver grid line after printing is lower, resulting in welding penetration and cold welding problems at the welding positions that need to contact with the welding strip.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a metal mesh, comprising a metal mesh, the top surface of the metal mesh is provided with a welded wire mesh, the top surface of the welded wire mesh is provided with a thickened metal mesh, a marking plate is provided on one side of the welded wire mesh, a connecting frame is provided on one side of the metal mesh, the top surface of the connecting frame is provided with fixing screws, and the bottom surface of the connecting frame is provided with a fixed bottom frame.

[0006] Preferably, a fixed perforation is provided on one side of the false frame, an electroplated mesh is provided inside the metal mesh, and an electroplated mesh hole is provided inside the metal mesh.

[0007] Preferably, transverse steel wires are arranged inside the thickened metal mesh, and longitudinal steel wires are arranged inside the thickened metal mesh.

[0008] Preferably, a fixed angle pin is provided on the bottom surface of the marking sheet, and the top end of the fixed angle pin is fixedly connected to the bottom surface of the marking sheet.

[0009] Preferably, a fixing hole is provided inside the connection frame, and a rubber gasket is provided inside the connection frame.

[0010] Preferably, a nut is provided on the bottom surface of the fixed bottom frame, and a rubber bottom sheet is provided inside the fixed bottom frame.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This metal screen can form a complete silk screen printing screen by setting the metal mesh, connecting frame and fixed bottom frame to meet the needs of solar cell production. A part of the metal screen can be thickened by setting the metal mesh, welding silk screen and thickened metal mesh. By using them together, the welding of the screen can be thickened, which effectively avoids the problem of soldering through and cold soldering at the welding position that needs to contact the soldering tape due to the lower overall height of the silver grid line after printing.

[0013] This kind of metal mesh can quickly locate the surface of the metal mesh through the set metal mesh, welding wire mesh and marking plate to ensure the position that needs thickening, which is convenient for workers to perform thickening welding. The metal mesh can be quickly fixed and replaced through the set connection frame, fixing screws and fixed bottom frame, which is convenient for workers to adjust and replace the metal mesh. The use of each other can effectively improve the workers' replacement of wire mesh and determination of the position of welding and reinforcing wire mesh, and effectively improve the work efficiency of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional exploded view of the present invention;

[0015] Figure 2 It is a three-dimensional exploded view of the metal mesh of the present invention;

[0016] Figure 3 This is an exploded view of the thickened metal mesh of the present invention;

[0017] Figure 4 It is an exploded view of the marking sheet of the present invention;

[0018] Figure 5 It is an exploded view of the connection frame of the present invention.

[0019] In the figure: 1. Metal mesh; 2. Welded wire mesh; 3. Thickened metal mesh; 4. Marking plate; 5. Connecting frame; 6. Fixing screws; 7. Fixed bottom frame; 8. Electroplated mesh wire; 9. Electroplated mesh holes; 10. Horizontal steel wire; 11. Longitudinal steel wire; 12. Fixed angle pin; 13. Fixed hole; 14. Rubber gasket; 15. Nut; 16. Rubber bottom film. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1-5 As shown, the present invention provides a technical solution: a metal screen, including a metal mesh 1, the metal mesh 1 is used as the main body of the screen printing screen to ensure that the solar cell can be processed normally during processing, the top surface of the metal mesh 1 is provided with a welding wire mesh 2, the welding wire mesh 2 is used to connect the thickened metal mesh 3, ensure that the surface of the metal mesh 1 can be thickened, avoid the problem of welding penetration and cold welding during welding, the top surface of the welding wire mesh 2 is provided with a thickened metal mesh 3, the thickened metal mesh 3 is used to cooperate with the welding The wire mesh 2 is used to ensure that the surface of the metal mesh 1 can be thickened to avoid problems such as welding penetration and cold welding during welding. A marking plate 4 is provided on one side of the welding wire mesh 2. The marking plate 4 is used to mark the position where the surface of the metal mesh 1 needs to be thickened, so that the staff can quickly determine the position where welding and thickening are required and perform welding. A connecting frame 5 is provided on one side of the metal mesh 1. The connecting frame 5 is used to cooperate with the fixed bottom frame 7 to ensure that the surface of the metal mesh 1 will not be affected by external forces during welding, resulting in folding deformation. The connecting frame 5 The top surface of the connection frame 5 is provided with fixing screws 6, which are used to connect the connection frame 5 and the fixed bottom frame 7 to ensure that the connection frame 5 and the fixed bottom frame 7 can firmly clamp the metal mesh 1. The bottom surface of the connection frame 5 is provided with a fixed bottom frame 7, which is used to cooperate with the connection frame 5 to ensure that the surface of the metal mesh 1 will not be affected by external forces during welding, resulting in folding deformation. The inside of the metal mesh 1 is provided with electroplated mesh wire 8, which is used to form a complete metal mesh 1 to ensure that the metal mesh 1 can play a normal printing role. The mesh 1 is provided with electroplated mesh holes 9 inside, which are used to fix the position of the marking plate 4 to ensure that the marking plate 4 will not easily shift in position after marking. The thickened metal mesh 3 is provided with transverse steel wires 10 inside, which are used in conjunction with longitudinal steel wires 11 to ensure that a normal mesh can be formed and can be used normally. The thickened metal mesh 3 is provided with longitudinal steel wires 11 inside, which are used in conjunction with transverse steel wires 10 to ensure that a normal mesh can be formed and can be used normally.

[0022] The bottom surface of the marking plate 4 is provided with a fixed angle pin 12, which is used to be inserted into the electroplating mesh hole 9 to ensure that the marking plate 4 will not easily shift after marking. The top of the fixed angle pin 12 is fixedly connected to the bottom surface of the marking plate 4 to ensure that the fixed angle pin 12 and the marking plate 4 are integrated to ensure that the marking plate 4 will not easily shift after marking. The interior of the connecting frame 5 is provided with a fixing hole 13, which is used to insert the fixing screw 6 to ensure that the connecting frame 5 and the fixed bottom frame 7 can be overlapped and fixed. The connecting frame 5 A rubber gasket 14 is provided inside, and the rubber gasket 14 is used in conjunction with the rubber bottom film 16 to ensure that the connecting frame 5 and the fixed bottom frame 7 can firmly clamp the metal mesh 1. A nut 15 is provided on the bottom surface of the fixed bottom frame 7, and the nut 15 is used in conjunction with the fixing screw 6 to ensure that the connecting frame 5 and the fixed bottom frame 7 can be freely connected or disassembled. A rubber bottom film 16 is provided inside the fixed bottom frame 7, and the rubber bottom film 16 is used in conjunction with the rubber gasket 14 to ensure that the connecting frame 5 and the fixed bottom frame 7 can firmly clamp the metal mesh 1.

[0023] Working principle: When the staff needs to thicken the metal mesh 1, first clamp the metal mesh 1 through the rubber gasket 14 and the rubber bottom film 16 inside the connecting frame 5 and the fixed bottom frame 7, and then fix the connecting frame 5 and the fixed bottom frame 7 through the fixing screws 6 and nuts 15. Then measure the surface of the metal mesh 1 and ensure the position that needs to be welded, mark it with the marking plate 4, and insert the fixed angle pin 12 on the bottom of the marking plate 4 into the electroplated mesh hole 9 on the surface of the metal mesh 1 to fix it, and then thicken the surface of the metal mesh 1.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal screen, comprising a metal mesh (1), characterized in that: The top surface of the metal mesh (1) is provided with a welding wire mesh (2), the top surface of the welding wire mesh (2) is provided with a thickened metal mesh (3), one side of the welding wire mesh (2) is provided with a marking plate (4), one side of the metal mesh (1) is provided with a connecting frame (5), the top surface of the connecting frame (5) is provided with fixing screws (6), and the bottom surface of the connecting frame (5) is provided with a fixed bottom frame (7).

2. A metal screen according to claim 1, characterized in that: The metal mesh (1) is provided with electroplated mesh wires (8) inside, and the metal mesh (1) is provided with electroplated mesh holes (9) inside.

3. A metal screen according to claim 1, characterized in that: The thickened metal mesh (3) is provided with transverse steel wires (10) inside, and the thickened metal mesh (3) is provided with longitudinal steel wires (11) inside.

4. A metal screen according to claim 1, characterized in that: The bottom surface of the marking plate (4) is provided with a fixed angle pin (12), and the top end of the fixed angle pin (12) is fixedly connected to the bottom surface of the marking plate (4).

5. The metal screen according to claim 1, characterized in that: A fixing hole (13) is provided inside the connection frame (5), and a rubber gasket (14) is provided inside the connection frame (5).

6. A metal screen according to claim 1, characterized in that: A nut (15) is provided on the bottom surface of the fixed bottom frame (7), and a rubber bottom sheet (16) is provided inside the fixed bottom frame (7).

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