Spraying device and spraying method thereof

Abstract

The invention discloses a spraying device. The spraying device comprises a support platform for placing a workpiece, a working platform opposite to the support platform, and a cantilever suspended on the working platform. A guide rail is arranged on the working platform; one end of the cantilever is in sliding connection with the guide rail; and multiple nozzles are arranged on the cantilever opposite to the workpiece. In the use process of the spraying device, the cantilever can slide along the guide rail with the preset speed through the program control, and the supplementary liquid spraying is performed for an insufficient liquid spraying area of the workpiece through the nozzles. The spraying device can efficiently and uniformly supplement the liquid for the workpiece, effectively improves the use effect of a traditional spraying device, and particularly improves the automation degree. Compared with a robot liquid spraying method, the device further can save the investment cost. In addition, the spraying device also has such functions as ink jet and air jet besides the function of water spraying, so that the purpose is wider.

Description

technical field [0001] The invention relates to a spraying device, in particular to a spraying device of a gypsum mold used in the field of polycrystalline silicon ingot production and a spraying method of the spraying device. Background technique [0002] In the photovoltaic industry, quartz crucibles are essential consumables for polysilicon ingot molding. The production yield of traditional large quartz crucibles is largely determined by the surface moisture of the plaster mold. After the gypsum mold is cast into an ingot for a period of time, the moisture content of each surface and edge will be very different. In order to control the surface humidity of the gypsum mold within a certain range, the gypsum mold needs to be replenished accordingly. The traditional rehydration methods mainly include artificial rehydration and robot spraying rehydration. [0003] The traditional artificial rehydration method is labor-intensive, low in efficiency, and poor in effect, and it ...

AI Technical Summary

Problems solved by technology

[0003] The traditional artificial rehydration method is labor-intensive, low in efficiency, and poor in effect, and it is difficult to achieve the purpose of uniform rehydration of plaster molds; the robot spraying rehydration method is expensive, and for 1000×1000×500mm 3 Such as large-volume plaster molds, the work efficiency of this method of replenishing liquid is too low, and the maintenance cost is high, so it has not been widely promoted and applied at present.

Images