A multi-channel screen printing line

Abstract

The invention discloses a multichannel silk-screen printing line. The multichannel silk-screen printing line aims at solving the defects that when any silk-screen printing procedure in the existing single-channel silk-screening printing line goes wrong, the whole silk-screen printing line needs to be stopped, so that the printing speed is reduced. The multichannel silk-screen printing line comprises an input conveying belt, an output conveying belt, a first group of silk-screen printing machines, a first drying machine, a second drying machine, a second group of silk-screen printing machines, a piece overturning device, a sintering furnace and a third group of silk-screen printing machine, wherein each group of silk-screen printing machines at least comprises two silk-screen printing machines which are parallel; the feeding end of each silk-screen printing machine is provided with a piece loading device; and the discharging end of each silk-screen printing machine is provided with an unloading device. The multichannel silk-screen printing line disclosed by the invention has the advantages that a caching device in the traditional silk-screen printing line can be omitted, so that the cost is reduced; and meanwhile, the problem of mutual restriction among the speeds of all the silk-screen printing procedures is solved, so that the single-channel silk-screen printing efficiency can be obviously improved.

Description

technical field [0001] The invention relates to the field of solar crystal silicon cell screen printing equipment, in particular to a multi-channel screen printing line. Background technique [0002] As the last process of solar cell processing, screen printing plays an important role in the quality of the cell. After the PE coating of the battery sheet, it needs to go through 6 processes of back electrode printing, drying, back electric field printing, drying, positive electrode printing and sintering, and 3 printings to complete all the screen printing. For the printing of different parts, the required process parameters such as printing speed, printing pressure and printing precision are different, among which the printing precision of the positive electrode is the highest and the speed is the slowest. [0003] At present, the cell screen printing lines commonly used in the industry are as follows: figure 1 As shown, only 3 printing machines are included, and the cells ...

AI Technical Summary

Problems solved by technology

[0004] In order to increase the speed of cell screen printing, the common practice in the industry is to increase the screen printing line, which can effectively increase the printing speed, but it also increases unnecessary costs, such as redundant drying ovens and conveying mechanisms

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