On-line scrubbing device for solar cell screen printing plate

Abstract

The invention relates to the technical field of screen printing of crystalline silicon solar cells, in particular to an on-line scrubbing device for a solar cell screen printing plate. The on-line scrubbing device is a device for removing leaked slurry on the back of the screen printing plate in the printing process to reduce or eliminate nodal points. The device comprises a scrubbing head and a bracket, wherein the scrubbing head comprises a perforated scraper and an organic solvent trough. The device can be arranged on a printing platform or at other proper position in a printing machine, and the screen printing plate for the cell is scrubbed on line by adjusting the height of the device. Through the device, poor factors such as the nodal points on the surface of the solar cell can be greatly reduced, manpower can also be reduced, the screen printing yield is improved, damage of human factors to the screen printing plate is reduced, and harm of the organic slurry to the human body is reduced. The industrial competitiveness of an enterprise is improved when the cost of the enterprise is saved.

Description

technical field [0001] The invention relates to the technical field of screen printing of crystalline silicon solar cells, in particular to an online scrubbing device for screen printing screens of solar cells. Background technique [0002] Now the competition in the photovoltaic industry is becoming increasingly fierce. In addition to improving the conversion efficiency of solar cells, reducing costs is also the only way for enterprises to survive and develop. As an important link in the manufacture of traditional crystalline silicon solar cells, the printing process has increasingly become the bottleneck of photovoltaic production capacity, thus restricting the reduction of costs; and the appearance of products has increasingly attracted the attention of customers. In the printing process, in order to reduce the appearance "nodes" caused by the leakage of the screen paste, it is necessary to stop the machine and manually wipe the screen, which not only reduces the producti...

AI Technical Summary

Problems solved by technology

In the printing process, in order to reduce the appearance "node" caused by the leakage of the screen paste, it is necessary to stop the machine and manually wipe the screen, which not only reduces the production capacity, but also consumes a certain amount of manpower

According to a rough calculation, the machine is suspended for about 10 to 20 minutes to wipe the screen, and the screen printing time of at least 5 cells is required to wipe the screen each time, so that the production capacity of wiping the screen can be reduced by up to 2%; and it also increases The workload of 0.5 people has greatly increased the consumption of consumables such as clean cloth alcohol; the instability of manual scrubbing will also affect the service life of the screen

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