Etching solution suction device for printed circuit board

Abstract

The utility model relates to a kind of etching solution suction device of printed circuit board, including the medicine tank for loading etching solution and suction cavity;And the circulation pipe installed at the both ends of medicine tank, the surface of the circulation pipe is equipped with circulation pump and venturi tube, one end of the venturi tube is connected with suction tube, the gap between the etching solution suction device of printed circuit board and the pressure wheel and suction knife that rotate together with upper transmission roller and lower transmission roller can be minimized, provide the condition of uniform suction, install pump on circulation pipe, form stronger high pressure, can suck more water pool effect, printed line uniformity is improved while the possibility of small circuit formation is large, when suction cavity sucks etching solution, it is achieved that soft plate and thin plate cannot be sucked by pressure wheel, and diversified products can be produced, in addition, the problem of carding caused by the fixed suction knife between transmission roller and pressure wheel when conveying printed circuit board can be solved.

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