Mortar leakage prevention device for main grid screen printing plate

Abstract

The utility model relates to the technical field of main grid screen printing plates, in particular to a slurry leakage prevention device of a main grid screen printing plate, which comprises a screen frame, the inner side wall of the screen frame is fixedly connected with screen cloth, and the screen cloth is provided with a main grid pattern; the slurry leakage prevention mechanism comprises a plurality of adhesive tapes, the side walls of the adhesive tapes are attached to the side wall of the screen frame, every two adjacent adhesive tapes are parallel, the upper end and the lower end of the screen frame are fixedly connected with a plurality of L-shaped plates corresponding to the adhesive tapes one to one, the side walls of the L-shaped plates are in threaded connection with threaded rods, and the threaded rods are in threaded connection with the screen frame. The side wall, close to the screen frame, of the threaded rod is rotationally connected with a pressing plate, a groove is formed in the side wall of the L-shaped plate, and the inner wall of the groove is slidably connected with the side wall of the L-shaped plate. According to the utility model, a plurality of adhesive tapes are arranged, so that the non-graphic area of the screen cloth can be covered, the condition that the screen cloth is punctured by a battery piece during printing is reduced in the printing process, the effect of preventing slurry leakage is achieved, and the service life of the screen printing plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of main grid stencils, in particular to a main grid stencil anti-leakage slurry device. Background Art

[0002] In the printing process of solar cells, the use of printing stencils has a great impact on the final printing quality. Among them, the stencil is an important tool for screen printing and can be said to be an important foundation for screen printing. Screen printing is a multi-purpose printing technology and has been widely developed and applied because it can be applied to a variety of fields.

[0003] The stencil is generally composed of a stencil frame and a screen cloth. During the printing process, when the screen cloth contacts the battery chip, the battery chip fragments will pierce the screen cloth, reducing the service life of the stencil and causing slurry leakage. Therefore, it is necessary to further improve the structure of the stencil. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a main grid stencil anti-leakage slurry device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A main grid stencil anti-leakage slurry device, comprising:

[0007] A stencil frame, the inner side wall of the stencil frame is fixedly connected with a screen cloth, and a main grid pattern is arranged on the screen cloth;

[0008] An anti-leakage slurry mechanism, the anti-leakage slurry mechanism includes a plurality of tapes, the side wall of the tape is attached to the side wall of the stencil frame, two adjacent tapes are parallel to each other, both the upper end and the lower end of the stencil frame are fixedly connected with a plurality of L-shaped plates corresponding to the plurality of tapes one by one, the side wall of the L-shaped plate is threadedly connected with a threaded rod, the side wall of the threaded rod close to the stencil frame is rotatably connected with a pressing plate, a groove is formed in the side wall of the L-shaped plate, the inner wall of the groove is slidably connected with the side wall of the L-shaped plate, and the end of the threaded rod away from the pressing plate is fixedly connected with a turning handle.

[0009] Preferably, the number of the tapes is, the distance between the tape and the main grid pattern is 1-2 mm, and the thickness of the tape is 10-50 μm.

[0010] Preferably, the material of the tape is one of aluminum foil, PVC, PET, PI and metal film.

[0011] The utility model has the following beneficial effects:

[0012] A plurality of tapes are provided to cover the non-graphic areas of the screen cloth, reducing the puncture of the screen cloth by the battery wafers during printing, preventing slurry leakage, and increasing the service life of the screen plate. Description of the Drawings

[0013] Figure 1 FIG. is a schematic structural diagram of a main grid screen plate anti-slurry leakage device proposed by the present utility model;

[0014] Figure 2 is Figure 1 an enlarged schematic view of the structure at A in

[0015] Figure 3 is Figure 1 a right view structural schematic diagram of

[0016] In the figure: 1, screen frame; 2, screen cloth; 3, tape; 4, L-shaped plate; 5, groove; 6, pressing plate; 7, threaded rod; 8, turning handle. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0018] Referring to Figures 1 - 3 , a main grid screen plate anti-slurry leakage device includes a screen frame 1, and a screen cloth 2 is fixedly connected to the inner side wall of the screen frame 1. A main grid pattern is provided on the screen cloth 2.

[0019] An anti-slurry leakage mechanism includes a plurality of tapes 3. The side wall of the tape 3 is attached to the side wall of the screen frame 1. Adjacent two tapes 3 are parallel to each other. The number of tapes 3 is 15. The distance between the tape 3 and the main grid pattern is 1-2 mm, and the thickness of the tape 3 is 10-50 μm.

[0020] By providing the tape 3, the non-graphic areas of the screen cloth 2 can be covered. During printing, the puncture of the screen cloth 2 by the battery wafers during printing is reduced, the function of preventing slurry leakage is achieved, and the service life of the screen plate is increased, avoiding the situation in the prior art that during printing, when the screen cloth contacts the battery wafers, the battery wafer fragments will puncture the screen cloth, reducing the service life of the screen plate and causing slurry leakage.

[0021] Both the upper end and the lower end of the screen frame 1 are fixedly connected with a plurality of L-shaped plates 4 corresponding to the plurality of tapes 3 one by one. A threaded rod 7 is threadedly connected to the side wall of the L-shaped plate 4. A pressing plate 6 is rotatably connected to the side wall of the threaded rod 7 close to the screen frame 1. A groove 5 is provided on the side wall of the L-shaped plate 4. The inner wall of the groove 5 is slidably connected to the side wall of the L-shaped plate 4. A turning handle 8 is fixedly connected to the end of the threaded rod 7 away from the pressing plate 6.

[0022] Furthermore, two L-shaped plates 4 are provided to clamp the side walls of the tape 3, so that the position of the tape 3 on the side wall of the screen frame 1 is fixed, increasing its stability during use.

[0023] The material of the tape 3 is one of aluminum foil, PVC, PET, PI and metal film.

[0024] Before screen printing, first attach 15 tapes 3 to the side wall of the screen frame 1 so that two adjacent tapes 3 are parallel to each other, and the distance between the tape 3 and the main grid pattern is 1-2 mm. Thus, the non-graphic area of the screen cloth 2 can be covered. During printing, the situation that the battery chip punctures the screen cloth 2 during printing can be reduced, which plays a role in preventing slurry leakage and increases the service life of the screen plate. It avoids the situation in the prior art that when the screen cloth contacts the battery chip during printing, the battery chip fragments will puncture the screen cloth, reducing the service life of the screen plate and causing slurry leakage.

[0025] Subsequently, both the upper side wall and the lower side wall of the tape 3 are placed between the side wall of the clamping plate 6 and the side wall of the screen frame 1. Then, turn the handle 8, and the rotation of the threaded rod 7 drives the clamping plate 6 to move towards the screen frame 1 to clamp the tape 3, so that the position of the tape 3 on the side wall of the screen frame 1 is fixed, increasing its stability during use.

[0026] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A main grid screen slurry leakage prevention device, characterized in that: include: A mesh frame (1), wherein the inner side wall of the mesh frame (1) is fixedly connected with a mesh cloth (2), and the mesh cloth (2) is provided with a main grid pattern; A slurry leakage prevention mechanism, the slurry leakage prevention mechanism comprising a plurality of adhesive tapes (3), the side walls of the adhesive tapes (3) being in contact with the side walls of a mesh frame (1), two adjacent adhesive tapes (3) being parallel to each other, the upper and lower ends of the mesh frame (1) being fixedly connected with a plurality of L-shaped plates (4) corresponding one to one with the plurality of adhesive tapes (3), the side walls of the L-shaped plates (4) being threadedly connected with threaded rods (7), the threaded rods (7) being rotatably connected with a pressure plate (6) near the side walls of the mesh frame (1), the side walls of the L-shaped plates (4) being provided with grooves (5), the inner walls of the grooves (5) being slidably connected with the side walls of the L-shaped plates (4), and the end of the threaded rods (7) away from the pressure plate (6) being fixedly connected with a handle (8).

2. A main grid screen slurry leakage prevention device according to claim 1, characterized in that: The number of the adhesive tapes (3) is 15, the distance between the adhesive tapes (3) and the main grid pattern is 1-2 mm, and the thickness of the adhesive tapes (3) is 10-50 μm.

3. A main grid screen slurry leakage prevention device according to claim 1, characterized in that: The material of the adhesive tape (3) is one of aluminum foil, PVC, PET, PI and metal film.

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