Method for prolonging service life of grid line plate

Abstract

The invention discloses a method for prolonging the service life of a grid line plate, which is characterized in that two layers of films are arranged in interval areas of adjacent grid lines, so that the whole grid line plate is not easy to generate broken holes, and the long-term stable and reliable use of the grid line plate is ensured. The method comprises the following steps: pre-sticking an inner layer film on a scraper surface, corresponding to a scraper, of a grid line plate, then cutting out an area, corresponding to a grid line, of the inner layer film through laser, then removing the inner layer film corresponding to the position of the grid line, and then sticking an outer layer film to the outer surface of the inner layer film according to a preset position.

Description

Technical Field

[0001] The present invention relates to the technical field of grid line plate production, and in particular to a method for improving the service life of a grid line plate. Background Art

[0002] The surface of solar photovoltaic panels in the photovoltaic industry needs to be screen-printed through a grid plate. The existing grid plates are all provided with a single-layer film at the position corresponding to the scraper surface. In actual use, the strip areas of the film corresponding to the intervals between adjacent tungsten wires are prone to holes, which makes the entire grid plate unable to perform reliable printing operations for a long time. Therefore, it is urgent to develop a method that can be used to increase the service life of the grid plate, so as to ensure that the grid plate can perform reliable and stable operations for a long time. Summary of the Invention

[0003] In response to the above problems, the present invention provides a method for improving the service life of the grid line plate, which provides two layers of film in the interval area between adjacent grid lines, making the entire grid line plate less likely to have holes, thereby ensuring the long-term stable and reliable use of the grid line plate.

[0004] A method for increasing the service life of a grid line plate, characterized in that: an inner layer film is pre-bonded to the scraper surface of the grid line plate corresponding to the scraper, and then the area of ​​the inner layer film corresponding to the grid line is laser cut out, and then the inner layer film corresponding to the grid line position is peeled off, and then the outer layer film is attached to the outer surface of the inner layer film according to the preset position.

[0005] It is further characterized by:

[0006] The inner layer film is specifically a PI film with a thickness of 2 to 5 μm;

[0007] The inner film area covers the grid line area and the outer frame of the grid line plate;

[0008] When the laser is cutting, each grid line area of ​​the inner film forms a corresponding closed strip frame, and then the inner film in the closed strip frame is torn off during the subsequent film tearing process;

[0009] The inner layer film is pre-bonded to the scraper surface of the grid line plate by using the adhesive backing. During the pre-bonding operation, the inner layer film and the grid line plate are placed in an environment of 80°C to 100°C for 6 minutes to 8 minutes, so that the position of the inner layer film and the grid line plate is reliable.

[0010] When the laser is used for cutting, the inner layer film and the grid line plate are placed in the laser cutting machine, the grid line drawing is imported into the laser cutting machine, and after the plate and frame are aligned and the boundary size is reserved, the laser is cut according to the drawing;

[0011] After the outer film is attached to the outer surface of the inner film according to the preset position, it is laminated under high temperature and pressure to make the outer film and the inner film completely cured and laminated;

[0012] During high temperature pressure compounding, the temperature is 160℃~200℃ for 25 minutes to 35 minutes, and the pressure is 30~50kg from top to bottom. The source of pressure is the plane pressure mechanism, which is completely pressed on the surface of the outer membrane.

[0013] After adopting the present invention, the scraper surface of the grid line plate is coated with the original outer layer film after the inner layer film is set. The area of ​​the inner layer film corresponding to the grid line is cut and torn off by laser, so that the interval area between adjacent grid lines is provided with two layers of film, making it difficult for the entire grid line plate to produce holes, thereby ensuring the long-term stable and reliable use of the grid line plate; and because it has two layers of film, it reduces the wear of the scraper, thereby improving the stability of printing. DETAILED DESCRIPTION

[0014] A method for increasing the service life of a grid line plate: an inner layer film is pre-bonded to the scraper surface of the grid line plate corresponding to the scraper, and then the area of ​​the inner layer film corresponding to the grid line is laser cut out, and then the inner layer film corresponding to the grid line position is peeled off, and then the outer layer film is attached to the outer surface of the inner layer film according to the preset position.

[0015] In a specific implementation, the inner layer film is a PI film with a thickness of 2 to 5 μm; the corresponding surface area of ​​the inner layer film covers the grid line area and the outer frame of the grid line plate;

[0016] When the laser is cutting, each grid line area of ​​the inner film forms a corresponding closed strip frame, and then the inner film in the closed strip frame is torn off during the subsequent film tearing process;

[0017] The inner layer film is pre-bonded to the scraper surface of the grid line plate by using the adhesive backing. During the pre-bonding operation, the inner layer film and the grid line plate are placed in an environment of 80°C to 100°C for 6 minutes to 8 minutes, so that the position of the inner layer film and the grid line plate is reliable.

[0018] When the laser is used for cutting, the inner layer film and the grid line plate are placed in the laser cutting machine, the grid line drawing is imported into the laser cutting machine, and after the plate and frame are aligned and the boundary size is reserved, the laser is cut according to the drawing;

[0019] After the outer film is attached to the outer surface of the inner film according to the preset position, it is laminated under high temperature and pressure to make the outer film and the inner film completely cured and laminated;

[0020] During high temperature pressure compounding, the temperature is 160℃~200℃ for 25 minutes to 35 minutes, and the pressure is 30~50kg from top to bottom. The source of pressure is the plane pressure mechanism, which is completely pressed on the surface of the outer membrane. Specific embodiment:

[0022] The inner film is a 5μm thick PI film that is shaped like the outer frame size of the grid line plate. The inner surface of the PI film is preset with adhesive, and the tungsten wire grid lines in the grid line plate are pre-arranged according to the grid line arrangement drawing. The inner film is pre-attached to the scraper surface of the grid line plate, placed in a 100℃ oven for 5 minutes and then taken out. Then, the inner film and the grid line plate are placed in a laser cutting machine, and the grid line drawing is imported into the laser cutting machine. After the plate and frame are aligned and the boundary size is reserved, the laser is cut according to the drawing. Each grid line area of ​​the inner film corresponds to the formation of a closed strip frame, and then the inner film in the closed strip frame is torn off during the subsequent film tearing. After that, the outer film is attached to the outer surface of the inner film according to the preset position, and then the outer film and the inner film are completely cured and compounded through high-temperature pressure compounding; during high-temperature pressure compounding, the temperature is 180℃ for 30 minutes, and the pressure is 40kg from top to bottom. The source of the pressure is a planar pressure mechanism, and the planar pressure mechanism is completely pressed on the surface of the outer film.

[0023] After the inner layer film is set on the scraper surface of the grid line plate, the original outer layer film is laminated. The area of ​​the inner layer film corresponding to the grid line is cut and torn off by laser, so that two layers of film are set in the interval area between adjacent grid lines, making it difficult for the entire grid line plate to produce holes, thereby ensuring the long-term stable and reliable use of the grid line plate; and because it has two layers of film, it reduces the wear of the scraper, thereby improving the stability of printing.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0025] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for increasing the service life of a grid line plate, characterized by: An inner layer film is pre-glued to the scraper surface of the grid line plate corresponding to the scraper, and then the area of ​​the inner layer film corresponding to the grid line is laser cut out, and then the inner layer film corresponding to the grid line position is peeled off, and then the outer layer film is attached to the outer surface of the inner layer film according to the preset position.

2. The method for increasing the service life of a grid plate according to claim 1, characterized in that: The inner layer film is specifically a PI film with a thickness of 2 to 5 μm.

3. The method for increasing the service life of a grid plate according to claim 2, characterized in that: The inner film surface area covers the grid line area and the outer frame of the grid line plate.

4. The method for increasing the service life of a grid plate according to claim 1, characterized in that: When the laser is used for cutting, each grid line area of ​​the inner film forms a corresponding closed frame, and then the inner film in the closed frame is torn off during subsequent film tearing.

5. The method for increasing the service life of a grid plate according to claim 1, characterized in that: The inner layer film is pre-bonded to the scraper surface of the grid line plate through the adhesive backing. During the pre-bonding operation, the inner layer film and the grid line plate are placed in an environment of 80℃ to 100℃ for 6 minutes to 8 minutes, so that the position of the inner layer film and the grid line plate is reliable.

6. The method for increasing the service life of a grid plate according to claim 1, characterized in that: When the laser is used for cutting, the inner layer film and the grid line plate are placed in the laser cutting machine, the grid line drawing is imported into the laser cutting machine, and after the plate and frame are aligned and the boundary size is reserved, the laser is cut according to the drawing.

7. The method for increasing the service life of a grid plate according to claim 1, characterized in that: After the outer film is attached to the outer surface of the inner film according to the preset position, it is laminated by high temperature and pressure so that the outer film and the inner film are completely cured and laminated.

8. The method for increasing the service life of a grid plate according to claim 7, characterized in that: During high temperature pressure compounding, the temperature is 160℃~200℃ for 25 minutes to 35 minutes, and the pressure is 30~50kg from top to bottom. The source of pressure is the plane pressure mechanism, which is completely pressed on the surface of the outer membrane.