Novel glue scraping strip for silk-screen printing

Abstract

The invention relates to a novel glue scraping strip for silk-screen printing. The novel glue scraping strip comprises a main printing glue scraping strip and further comprises an auxiliary printing plate with an L-shaped cross section. The long edge of the auxiliary printing plate is connected with one side face of a glass fiber plate of the main printing glue scraping strip through a bolt or in a bonding manner, and a certain distance h is reserved between the short edge of the auxiliary printing plate and the bottom edge of the main printing glue scraping strip. The novel glue scraping strip has the effects that the production cost is low, two times of printing can be achieved through one printing head, the problem about alignment does not exist, and the production and use difficulty are reduced greatly.

Description

technical field [0001] The invention relates to the field of solar cell production and manufacture, and specifically discloses a novel squeegee for screen printing. Background technique [0002] With the gradual promotion and popularization of crystalline silicon solar power generation, high-efficiency solar cells have become the focus of the needs of various system manufacturers, so low-cost high-efficiency solar cells have increasingly become the direction pursued by various manufacturers. Among the existing high-efficiency technologies, many require expensive equipment investment, such as PERC, RIE, HIT and other technologies. Although the investment in the two-time printing technology is not large, because it requires overprint alignment, the alignment accuracy of the equipment The deformation of screen and screen has very high requirements. At the same time, the management and control of production are very demanding, so it is difficult to popularize. [0003] The orig...

AI Technical Summary

Problems solved by technology

Among the existing high-efficiency technologies, many require expensive equipment investment, such as PERC, RIE, HIT and other technologies. Although the investment in the two-time printing technology is not large, because it requires overprint alignment, the alignment accuracy of the equipment The deformation of screen and screen has very high requirements, and at the same time, the management and control of production are very demanding, so it is difficult to popularize

[0003] The original printing scraper has only one side with printing effect in one printing cycle. When the minimum opening width of the screen printing graphics gradually narrows or the viscosity of the slurry increases, the ink penetration during printing is very poor, and even large Poor area printing, in severe cases, the grid line is disconnected, and the current collection ability is reduced, which ultimately affects the appearance and performance of the cell

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