Cover plate dust collection device of filter tip assembling machine

The invention relates to the technical field of cigarette making and plug assembling machines, in particular to a filter tip plug assembling machine cover plate dust suction device which comprises a cover plate box, the cover plate box is of a structure with the front end and the two sides being open, a negative pressure connector is formed in the rear lower portion of one side of the cover plate box, and the position, close to the negative pressure connector, in the cover plate box is divided into a rubber powder negative pressure cavity through a first partition plate; the side, away from the negative pressure connector, of the rubber powder negative pressure cavity is in a sealed shape, a gap is reserved at the bottom of the first partition plate to form a rubber powder exhaust inlet, a tobacco powder exhaust inlet and a water vapor exhaust inlet are formed in the bottom face and the front portion of the cover plate box respectively, and the tobacco powder exhaust inlet and the water vapor exhaust inlet ar