Fine grid screen printing plate

Abstract

The utility model relates to the technical field of printing screens, and particularly discloses a fine grid screen which comprises an alloy plate (10) and a plurality of fine grids (20) arranged on the alloy plate (10). Each fine grid (20) is divided into a plurality of fine grid sections (21) by a plurality of fractures (30), and arc-shaped ends (22) are arranged at the two ends of each fine grid section (21); the whole fine grid is divided into a plurality of fine grid sections, when fine grid printing is carried out, tension generated by the scraper can be effectively released at a fracture, meanwhile, the two ends of each fine grid section adopt arc-shaped end heads to replace right-angle heads in the prior art, and when the fine grid sections receive pressure from the scraper, the fine grid sections are not prone to falling off. And the tension is uniformly applied to the arc-shaped end heads at the two ends of the fine grid section along an arc line, so that the problems of deformation, tearing and the like caused by non-uniform stress of a right-angle head in the prior art are solved, and the service life of the fine grid screen printing plate is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing screen technology field especially relates to a fine screen. BACKGROUND

[0002] The printing screen is an important tool for printing the electrode of the solar cell, the slurry is poured on the printing screen, the slurry is moved on the printing screen by the scraper, the slurry is extruded to the solar cell through the mesh hole on the printing screen, the corresponding pattern is formed on the solar cell to form the electrode of the solar cell.

[0003] The existing fine screen for printing screen is rectangular structure, when printing, the scraper gives the downward pressure to the screen, the irregular tension is generated at the four corners, the deformation and tearing of the inner corner of the rectangle are easily caused, and the service life of the fine screen is reduced. SUMMARY

[0004] The utility model provides a fine screen that overcomes the defects of the prior art, the arc-shaped end is used at both ends of the fine screen, the pressure from the scraper is homogenized, the risk of deformation and tearing is solved, and the service life of the fine screen is improved.

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

[0006] A fine screen comprises an alloy plate and a plurality of fine screens provided on the alloy plate, each fine screen is divided into a plurality of fine screen segments by a plurality of breaks, and arc-shaped ends are arranged at both ends of the fine screen segment.

[0007] Preferably, the break between the two adjacent arc-shaped ends is concave.

[0008] Preferably, the arc-shaped end is semicircular.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The whole fine screen is divided into a plurality of fine screen segments, the tension generated by the scraper can be effectively released at the break when the fine screen is printed, and the arc-shaped end is used at both ends of the fine screen segment to replace the right-angle head in the prior art, when the fine screen segment receives the pressure from the scraper, the tension is uniformly applied to the arc-shaped ends at both ends of the fine screen segment along the arc, the problems of deformation and tearing caused by the uneven force of the right-angle head in the prior art are solved, and the service life of the fine screen is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0012] Figure 1 This is a schematic diagram of the structure of a fine grid plate according to the present invention;

[0013] Figure 2 for Figure 1 A schematic diagram of the structure of the fine grid segment. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0015] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0016] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or its equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0018] Example 1:

[0019] like Figure 1 and Figure 2 As shown, a fine grid plate includes: an alloy plate 10, and a plurality of fine grids 20 formed on the alloy plate 10; each fine grid 20 is divided into a plurality of fine grid segments 21 by a plurality of breaks 30, and arc-shaped ends 22 are provided at both ends of the fine grid segments 21; a concave break 30 is formed between two adjacent arc-shaped ends 22; the arc-shaped ends 22 may be semi-circular.

[0020] In screen printing, the squeegee exerts a certain pressure on the screen when scraping the ink. When this pressure acts on the fine grid 20, it generates a certain tension. If the tension cannot be released during printing, the printed pattern will break under the tension release, making the product unusable. Therefore, in order to release the tension on the screen during printing, the existing technology generally divides the entire fine grid 20 into several fine grid segments 21. With this design, during printing, not only is the pressure on the entire fine grid 20 divided into several segments, but the tension can also be released at the break 30.

[0021] Of course, the above measures only release most of the tension. Although the tension remaining in the fine grid segment 21 will not affect the printing quality, the fine grid segment 21 in the existing technology has square ends. When the screen is used for a long time, those irregular tensions will continue to act on the square ends of the fine grid segment 21, eventually causing the square ends to deform or tear.

[0022] Therefore, the two ends of the fine grid segment 21 are designed as arc-shaped ends 22. When tension is generated on the arc-shaped ends 22, the tension will be evenly distributed on the arc-shaped ends 22 under the action of the arc, which solves the problem of deformation and tearing of the fine grid segment 21 and improves the service life of the fine grid screen.

[0023] Furthermore, the arc-shaped end 22 can be semi-circular. This design allows the arc-shaped end 22 to be tangent to the two long sides of the fine grid segment 21, which can make the tension more effectively and evenly distributed on the inner wall of the fine grid segment 21.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fine grid screen, characterized in that, include: Alloy plate (10), with several fine grids (20) formed on the alloy plate (10); each fine grid (20) is divided into several fine grid segments (21) by several breaks (30), and is set at the arc-shaped ends (22) at both ends of the fine grid segments (21).

2. The fine grid stencil according to claim 1, characterized in that, A concave fracture (30) is formed between the two adjacent arc-shaped ends (22).

3. The fine grid stencil according to claim 2, characterized in that, The arc-shaped end (22) can be semi-circular.

Images