Photovoltaic glass laser-drilling device and control method thereof

Abstract

The invention provides a photovoltaic glass laser-drilling device and a control method thereof. The photovoltaic glass laser-drilling device is characterized in that a photovoltaic glass plate is arranged on a roller bed of a glass conveyor; a position detector is arranged on one side of the glass conveyor and used for positioning a to-be-punched area of the photovoltaic glass plate; a laser generator is arranged on one side of a laser device bracket; a laser head is arranged on the other side of the laser device bracket; the laser device bracket is connected with a longitudinal moving mechanism; a liquid outlet valve is connected with a water storage tank, is connected to the lower part of the laser device bracket through a position adjusting component, and moves along with the laser device bracket; and a control system is connected with the liquid outlet valve, the position detector, the laser generator and the longitudinal moving mechanism. Through the arrangement of the position detector, the position of the photovoltaic glass plate is determined, related information is provided for the laser device bracket, and the photovoltaic glass plate is positioned by the laser head; and then, a water film is sprayed through the liquid outlet valve onto the photovoltaic glass plate, and specific patterns of the photovoltaic glass plate are covered by the water film so as to form a smooth surface, so that the scattering and the refraction of laser drilling can be avoided.

Description

technical field [0001] The invention relates to the technical field of photovoltaic glass processing, in particular to a laser drilling device and control method for photovoltaic glass. Background technique [0002] At present, the panel and backplane packaging glass of photovoltaic solar cell modules mostly use front and back 2.5mm and 2mm glass. China has successfully mass-produced the world's thinnest photovoltaic glass of 1.5mm and achieved continuous and stable mass production. When the thickness of the photovoltaic glass plate is less than 3.2mm, the rigidity of the glass plate is insufficient, and it is easy to deform under force, resulting in a low yield rate of traditional mechanical drilling and slow processing speed, which cannot meet actual production needs. Laser drilling is non-contact drilling, the glass plate will not be deformed during drilling, the drilling speed is fast, the efficiency is high, and it is easy to realize on-line and automation on the produc...

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a laser drilling device for photovoltaic glass, by spraying water additives on the processing part of the glass plate during drilling, to increase the durability of large-sized photovoltaic glass. Drilling efficiency, reducing and improving the refraction and scattering of the processing laser on the photovoltaic glass plate, reducing glass chipping during drilling and solving the problems of rising production costs and complex processes in the prior art

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