Cigarette length fine adjustment device for plug assembler

The invention discloses a cigarette length fine adjustment device for a plug assembler, comprising: a main shaft, one end of which is fixedly mounted through a connecting seat; arear flange plate which is mounted at the other end of the main shaft and is opposite to the connecting seat, wherein a first through hole and a second through hole are formed in the rear flange plate; an inner adjusting seat and an outer adjusting seat, wherein the main shaft is movably sleeved with the inner adjusting seat and the outer adjusting seat, vertical seats are arranged below the inner adjusting seat and the outer adjusting seat, and rollers are arranged at the bottoms of the vertical seats; an inner adjusting rod which is a gear shaft, wherein the gear is installed in the first through hole, and a shaft of the gear is in threaded fit with the inner adjusting seat; an outer adjusting rod which is a gear shaft, wherein the gear is installed in the second through hole, and a shaft of the gear is in threaded fit with the oute