Method for scrubbing silk-screen printing and classification inspection conveyor belt

A conveyor belt and screen printing technology, which is applied in the field of crystalline silicon solar cell production, can solve problems such as the reduction of electrical performance parameters, affecting the quality of the cell, and the poor surface of the cell, so as to control the cleaning cycle, reduce equipment maintenance time, Effect of reducing surface defect ratio

Inactive Publication Date: 2015-04-01
ZHEJIANG FORTUNE ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Screen printing machines and sorting and testing equipment basically rely on rubber belts to transport silicon wafers and cells. Belts will be stained after long-term use, which will affect the quality of cells. Especially, screen printing will be more susceptible to paste and volatile organic compounds. pollution, resulting in poor cell surface and lower electrical performance parameters
Therefore, the belt needs to be cleaned and scrubbed regularly, and the scrubbing requires the machine to be shut down. Currently, the belt is cleaned every 12 hours, which seriously affects the production capacity of the workshop.

Method used

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  • Method for scrubbing silk-screen printing and classification inspection conveyor belt
  • Method for scrubbing silk-screen printing and classification inspection conveyor belt

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Embodiment Construction

[0010] Attached below figure 1 and 2 The technical scheme of the present invention is described in further detail.

[0011] In this specific embodiment, a screen printing and sorting transmission belt scrubbing method, the device includes four parts: a base, a screw rod, a sponge block and a sponge slot, and the sponge block and the slot pass through the screw rod and the base Installed on the machine table and directly under the belt, and the scrubbing process is realized through the friction sponge driven by the belt itself; the length and width dimensions inside the sponge slot match the corresponding size of the sponge block, and the height of the slot is lower than the sponge The block height is 1cm; the screw rod is a lifting screw rod, and the control range of the lifting height is 25cm. Through this specific embodiment, the screen printing and sorting conveying belt scrubbing device reduces the surface defect ratio of cells caused by belt contamination, effectively c...

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PUM

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Abstract

The invention discloses a method for scrubbing a silk-screen printing and classification inspection conveyor belt. The method involves a device comprising four parts, namely, a base, a screw rod, a sponge block and a sponge clamping groove; the sponge block and the sponge clamping groove are mounted on a stand and under the belt through the screw rod and the base; the belt is automatically transmitted and rubbed against the sponge to be scrubbed, so as to achieve the online cleaning mode. The method has the beneficial effects that reject ratio of the surface of a battery piece caused by dirt on the belt can be reduced, the cleaning cycle of the belt can be effectively controlled, the scrubbing can be performed all the time without shutdown, the operation is convenient and controllable, and therefore, the device maintenance time is reduced, and the output is increased.

Description

technical field [0001] The invention relates to the field of manufacturing crystalline silicon solar cells, in particular to a screen printing and sorting transmission belt scrubbing method. Background technique [0002] At present, the industrialization process of selective emitter crystalline silicon solar cells mainly includes texturing, diffusion, preparation of selective emitter junction, wet etching, PECVD coating and screen printing. Among them, the main purpose of the screen printing process is to print grid lines, electrodes and electric fields on the front and back of silicon wafers to form positive and negative electrode leads, and then dry at low temperature and sinter at high temperature to make solar cells. The prepared battery sheets will be tested by a classification inspection machine and classified according to current or power. Screen printing machines and sorting and testing equipment basically rely on rubber belts to transport silicon wafers and cells. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B1/02
CPCB08B1/02
Inventor 董焕苗
Owner ZHEJIANG FORTUNE ENERGY
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