Printing experiment screen printing plate

Abstract

The utility model relates to a printing experiment screen printing plate, and belongs to the technical field of printing screen printing plates. The problems that an existing printing experiment screen printing plate is high in manufacturing cost and low in production efficiency are solved. The screen printing device comprises a screen printing plate body and a plurality of pieces of screen cloth, and a plurality of mounting stations are arranged on the screen printing plate body at intervals and used for mounting the screen cloth; the screen cloth is made of different materials, and a plurality of holes with different shapes and apertures are formed in each piece of screen cloth. According to the screen printing plate, different materials, specifications and forming hole patterns can be matched with different sizing agents to prepare the printing solder paste, so that factors of different printing heights are verified through one printing experiment, the experiment frequency is reduced, the experiment period is shortened, and the production efficiency is improved. The screen cloth of the screen is provided with a plurality of forming holes, equivalently, the pattern specifications of a plurality of forming holes are verified through one-time experiment, the matched specifications can be found out more accurately, the customization time of the customized screen is shortened, and the manufacturing efficiency of the screen is improved.

Description

Technical Field

[0001] The present application relates to a printing experimental screen, and belongs to the technical field of printing screens. Background Art

[0002] When making circuit boards, a scraper is used to squeeze out an appropriate amount of ink (i.e., resist) on a mesh with a negative pattern, and a positive pattern is formed through the partial mesh, which is printed on the flat copper surface of the substrate to form a covering resist, preparing for subsequent selective etching or electroplating. This transfer method is generally called "printing screen" and can also be used in other fields. At present, in the BC battery preparation process, the printed solder paste is printed on the pad point using the same process as the printing screen, and the printing height of the printed solder paste matches the pad point.

[0003] There are many factors that affect the printing height, such as the material of the printing mesh, the shape and size of the forming holes, and the thickness of the mesh. For different types of batteries, in order to improve the forming rate of printed solder paste, the current existing technology adopts the method of making different printing screens for experiments, so as to formulate slurries that meet the printing requirements for different types of batteries to make printed solder paste. However, there are pad points with different printing requirements on a battery substrate, so it is necessary to make different printing screens for repeated experiments, which leads to an increase in production costs, and the need to repeatedly replace different types of printing screens will also lead to a decrease in production efficiency. Therefore, there is an urgent need for a printing experimental screen to solve the problems of high production cost and low production efficiency of the existing printing experimental screens. Utility Model Content

[0004] In response to the problems and shortcomings existing in the prior art, the present application provides a printing experimental screen, which provides a plurality of installation stations on the screen body to install screens of different materials, specifications and thicknesses, and the screen is provided with forming holes of different shapes and apertures, so as to reduce the screen manufacturing cost and the number of experiments, thereby achieving the purpose of reducing costs and saving production time.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a printing experimental screen, comprising a screen body and a plurality of meshes, wherein a plurality of installation stations are arranged at intervals on the screen body for installing the meshes; the meshes are made of different materials, and each mesh is provided with a plurality of holes of different shapes and apertures.

[0006] Specifically, the screen body includes a bottom plate and a cover plate; a plurality of mounting holes are arranged at intervals on the cover plate, and when the cover plate is mounted on the bottom plate, a plurality of mounting stations are formed between the two.

[0007] Specifically, the thicknesses of the plurality of meshes are the same or different.

[0008] Specifically, at least three installation stations are arranged at intervals on the network version body.

[0009] Specifically, the mesh cloth includes stainless steel mesh cloth, nickel platinum mesh cloth and polyester mesh cloth.

[0010] Specifically, the holes of the mesh are divided into several groups of sub-forming holes according to their shapes, and the several groups of sub-forming holes include square hole groups and circular hole groups; each group of sub-forming holes is provided with several rows of forming holes with gradually increasing aperture sizes, and each row of forming holes is provided with several forming holes with the same aperture size. In this way, square holes and circular holes are set on a mesh according to the commonly used forming hole shapes in the prior art, so that the influence of the mesh forming hole shape on the printing height can be verified in one experiment, thereby improving the experimental efficiency. And each row of forming holes is provided with multiple forming holes of the same aperture size, so as to eliminate the influence of individual differences on the experimental results and improve the experimental accuracy.

[0011] Specifically, the rows of forming holes in the square hole group are rectangular hole structures with the same width dimensions and gradually increasing long side dimensions.

[0012] Specifically, the forming hole is an inverted cone structure with an upper opening size smaller than a lower opening size, so as to facilitate the demoulding of the slurry during printing after printing.

[0013] Specifically, the mesh cloth is installed on the installation station of the mesh body through the adhesive coating layer.

[0014] Specifically, a protective paint layer is applied on the adhesive layer.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] 1. This application can match different slurries to make printed solder paste by using different materials, specifications and forming hole patterns, so as to verify different printing height factors through a single printing experiment, thereby reducing experiments to reduce the experimental cycle and improve production efficiency. The screen mesh of this application is provided with a number of forming holes, which is equivalent to verifying a number of forming hole pattern specifications in a single experiment, and can more accurately find the matching specifications to reduce the customization time of the custom screen and improve the efficiency of screen production.

[0017] 2. The screen cloth of this application is made of different material specifications. One screen can verify screen cloths of different materials at the same time. When doing different experiments, the screen cloth material parameters that meet the printing requirements can be matched, avoiding the cost increase and waste caused by customizing multiple screens, thereby reducing the experimental cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of the printing experiment screen in this embodiment. DETAILED DESCRIPTION

[0019] The present application will be further described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0020] See also Figure 1 An embodiment of the present application discloses a printing experimental screen, including a screen body and a plurality of meshes, wherein three installation stations are arranged at intervals on the screen body 4 for installing the meshes; the meshes are divided into stainless steel mesh 1, nickel-platinum mesh 2 and polyester mesh 3 according to the type of material, and each mesh is provided with a plurality of holes of different shapes and apertures.

[0021] The mesh body of this embodiment includes a base plate and a cover plate; three mounting holes are arranged at intervals on the cover plate, and when the cover plate is installed on the base plate, three mounting stations are formed between the two. And the mesh cloth of this embodiment is made of SMT special printing mesh cloth, with uniform thickness, smooth surface, no defects such as oxidation, discoloration, stain and scratches. Performance requirements: high tensile strength: strong resistance to damage when subjected to tension, small elongation at break: the smaller the better, but not zero, good resilience, chemical corrosion resistance, good ink permeability and good stability against temperature and humidity changes. The mesh body must have sufficient tension and good flatness, and the opening area of ​​the cover plate must be centered; the frame must be smooth and horizontal as a whole, with warping <5mm and verticality ≤0.2mm; the effective scraping range of the mesh cloth must be guaranteed. In order to ensure that the mesh cloth remains stable and does not deform during scraping, this embodiment uses a glue coating method to stretch the mesh cloth at the installation station. At the same time, in order to increase the service life of the glue coating layer, a protective paint layer needs to be applied on the glue coating layer.

[0022] Furthermore, the thicknesses of the three meshes in this embodiment are not the same, wherein the thickness of the stainless steel mesh is 0.3 mm, while the thicknesses of the nickel-platinum mesh and the polyester mesh are 0.2 mm.

[0023] The holes of the mesh of this embodiment are divided into two groups of sub-forming holes according to their shapes, and the two groups of sub-forming holes include a rectangular hole group 5 and a circular hole group 6; each group of sub-forming holes is provided with seven rows of forming holes with gradually increasing aperture sizes, and each row of forming holes is provided with three forming holes with the same aperture size. Among them, the forming holes of the rectangular hole group have a wide side size of 0.8mm, and the long side size is 1.0mm-1.6mm from the first group to the seventh group, and each group increases by 0.1mm. The forming holes of the circular hole group have a radius of 0.8mm-1.4mm, and each group increases by 0.1mm. When the forming holes of this embodiment are opened, the inner wall of the opening must be electro-polished. The circular opening is nearly cylindrical, and laser cutting and electro-polishing processes are used. The laser is punched from the back surface (the printed surface is the front surface) to ensure that the printed solder paste for SMT can be smoothly demolded without clogging the forming holes. At the same time, when drilling holes, according to the requirements of the drawings, the hole position accuracy reaches ±0.1mm, the distance between any two holes (such as two diagonal holes) deviates from the design value by no more than ±0.2mm, and the hole diameter deviation does not exceed ±0.05mm.

[0024] In addition, the forming hole of this embodiment is an inverted cone structure with the upper opening size slightly smaller than the lower opening size.

[0025] Working principle: The printing experimental screen of this embodiment is configured with meshes made of three materials through a screen body, and the thickness of the mesh is different, and the shape and aperture of the forming holes opened on the mesh are also different. When doing different experiments, the number of experimental verifications can be reduced, the cost and verification time can be reduced, and the time efficiency of screen customization can be improved. In addition, the three meshes of the experimental screen of this embodiment are equipped with a total of 126 forming holes, which is equivalent to 126 forming hole graphic specifications. For different pad points, corresponding printing solder paste needs to be configured, and the matching specifications can be found more accurately. Compared with the prior art that requires customization time to wait for customized screens, the experimental screen of this embodiment can improve the customization efficiency of finding matching specifications at one time, and reduce the cost of customized projects. At the same time, the mesh cloth of the experimental screen of this embodiment is of three different material specifications. When doing different experiments, it can match the parameter specifications of the product to avoid the waste of costs caused by customizing multiple screens.

[0026] The implementation methods of the present application are described in detail above in conjunction with the embodiments, but the present application is not limited to the above-mentioned implementation methods. For ordinary technicians in this technical field, after knowing the contents recorded in the present application, they can make several equivalent changes and substitutions thereto without departing from the principles of the present application, and these equivalent changes and substitutions should also be regarded as belonging to the protection scope of the present application.

Claims

1. A printing experimental screen, comprising a screen body and a plurality of screen cloths, characterized in that: The mesh body is provided with a plurality of installation stations at intervals for installing mesh cloths; the mesh cloths are made of different materials, and each mesh cloth is provided with a plurality of holes of different shapes and apertures.

2. A printing test screen according to claim 1, characterized in that: The screen body comprises a bottom plate and a cover plate; a plurality of installation holes are arranged at intervals on the cover plate, and when the cover plate is installed on the bottom plate, a plurality of installation stations are formed between the two.

3. A printing test screen according to claim 1, characterized in that: The thicknesses of the plurality of meshes are the same or different.

4. The printing test screen according to claim 1, characterized in that: At least three installation stations are arranged on the screen body at intervals.

5. The printing test screen according to claim 1, characterized in that: The mesh cloth includes stainless steel mesh cloth, nickel platinum mesh cloth and polyester mesh cloth.

6. The printing test screen according to claim 1, characterized in that: The holes of the mesh are grouped into several groups of sub-forming holes according to their shapes, and the several groups of sub-forming holes include square hole groups and circular hole groups; each group of sub-forming holes is provided with several forming holes with gradually increasing aperture sizes.

7. A printing test screen according to claim 6, characterized in that: The forming holes of the square hole group are rectangular hole structures with the same width and gradually increasing lengths.

8. The printing test screen according to claim 6, characterized in that: The forming hole is an inverted cone structure with an upper opening size smaller than a lower opening size.

9. The printing test screen according to claim 1, characterized in that: The mesh cloth is installed on the installation station of the mesh body through the glue coating layer.

10. A printing test screen according to claim 9, characterized in that: A protective paint layer is applied on the rubber coating layer.

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