A glue suction mechanism for a coating machine

Abstract

The utility model relates to the technical field of coating machine discloses a kind of glue extraction mechanism for coating machine, including cover, hard connecting pipe, glue extraction pump, the bottom of the cover is provided with integrally-formed round table, the round table is the modeling of big up small, the round table is inserted into glue bucket, the outer wall of the round table is fixedly provided with sealing sleeve, the sealing sleeve is located in the gap between the inner wall of glue bucket and the outer wall of round table, the bottom end of the hard connecting pipe is movably penetrated through cover, round table and then extends into glue bucket, mixed solution is extracted from glue bucket along with glue extraction pump work, the substance in glue bucket becomes less, so that the air pressure in glue bucket becomes low, under the action of pressure difference, external air enters into air bag from U-shaped air inlet pipe, air bag collides to fill the space in glue bucket, ensure that the air pressure in glue bucket will not be too low, and then lead to the problem that glue extraction pump cannot extract mixed solution, and air bag can also separate air and mixed solution in glue bucket, avoid mixed solution and air contact and solidify.

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