Automatic series welding machine for photovoltaic crystalline silicon cell pieces with radians

Abstract

An automatic series welding machine capable for photovoltaic crystalline silicon cell pieces with radians is composed of a welding strip supply system, a loading system, a conveying system, a discharging system and a control system; the welding strip supply system comprises a welding strip feeding mechanism, a welding strip processing mechanism, a welding strip traction mechanism and a welding strip pressing mechanism; the loading system comprises a rotary loading mechanism, a jacking mechanism, a high-speed robot and a CCD detection system; the conveying system comprises a conveying mechanism, a tensioning mechanism and a welding mechanism; the discharging system comprises a cell string turnover mechanism, a cell string transferring mechanism and a drawer type discharging mechanism; the control system comprises a cantilever type touch screen computer, a Mitsubishi PLC, a circuit system and a gas path system. According to the actual measurement, the machine can weld the cell pieces with the length of 120 micrometers to 200 micrometers, the highest production efficiency can reach 800 pieces/hour, the breakage rate is smaller than 0.3 percent, and the length precision of a cell string can reach +/- 1 mm.

Description

technical field [0001] The invention relates to an automatic stringer welding machine capable of completing curved photovoltaic crystalline silicon cells. Specifically, the invention includes a high-speed grabbing system, a high-precision double-station CCD detection system, a step-by-step temperature-adjusting transmission system, and an infrared welding system. ; It fundamentally solves the problems of grasping, conveying and welding of 120-micron ultra-thin curved cells, making the industrialization of 120-micron ultra-thin curved cells possible. Background technique [0002] Most domestic photovoltaic companies focus on the production and sales of polysilicon wafers, battery modules and other products. Most of the products are homogeneous, the production threshold is not high, and the production capacity is rapidly expanding. However, the cost advantage of relying on scale is not high. Due to the lack of core technology, most of the profits are offset by costs. The inve...

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Problems solved by technology

[0002] Most domestic photovoltaic companies focus on the production and sales of polysilicon wafers, battery modules and other products. Most of the products are homogeneous, the production threshold is not high, and the production capacity is rapidly expanding. However, the cost advantage of relying on scale is not high. Due to the lack of core technology, most of the profits are offset by costs

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