Silk-screen printing and sintering net belt connector

Abstract

The invention relates to a silk-screen printing and sintering net belt connector. The connector is made of a trapezoidal planar plate, wherein the width of the left side of the planar plate is slightly larger than that of a silk-screen printing conveying belt, the right side is small-strip-shaped, an inverted trapezoidal hollow body is arranged in the middle, and hooks are arranged on two sides of the edge of the left side. Silicon wafers subjected to silk-screen printing moves onto the planar plate under conveyance of conveying belt rollers and can quickly pass through the planar plate and the inverted trapezoidal hollow body due to the inertia effect and the smooth surface of the planar plate to reach a sintering furnace net belt and enter a sintering furnace. The silk-screen printing conveying belt and the sintering furnace net belt are connected together by the connector, so that the printed silicon wafers can be conveyed to the sintering furnace net belt conveniently, the phenomenon of wafer dropping due to the fact that the sintering furnace net belt and the silk-screen printing conveying belt are inconsistent in height and are spaced by a certain distance is effectively avoided, and the connector is simple in structure and convenient to use.

Description

technical field [0001] The invention relates to the field of solar cell production, in particular to a silk screen sintered mesh belt connector. Background technique [0002] At present, solar cells are popular as new energy products. The production of solar cells requires texturing, diffusion, cleaning, PECVD coating, screen printing, and sintering to prepare raw silicon wafers into solar cells. In the whole process, screen printing and sintering play a very important role. Screen printing is to print the silver paste and aluminum paste containing glass frit on the front and back of the silicon wafer to form an electrode pattern, and then combine the electrode pattern with the silicon wafer to form an electrode after sintering, and further package to form a solar cell module. In the sintering process, it is necessary to transfer the printed silicon wafer to the mesh belt of the sintering furnace, and then undergo high-temperature heating treatment at a certain temperature...

AI Technical Summary

Problems solved by technology

However, in terms of equipment layout, because the screen printing equipment is independent, the transfer mesh belt cannot be combined with the sintered mesh belt, there is a large gap in the middle, and the height is inconsistent, so that the silicon wafer with printed graphics cannot be printed from the screen. The printing is transferred to the mesh belt of the sintering furnace, which is easy to drop the film and cause debris, which also affects the production output

Images