Polishing device for solid preparation production

The utility model belongs to the technical field of pharmaceutical preparation production equipment, and discloses a polishing device for solid preparation production, which comprises a driving case,a polishing cylinder and a rack, the driving case is arranged on the left side of the polishing cylinder, a gear motor is arranged in the driving case, the polishing cylinder comprises an outer cylinder body, a rotating cylinder is arranged in the polishing cylinder, and sliding rails are arranged on the outer walls of the left side and the right side of the rotating cylinder. First rolling wheelsmatched with the sliding rails are arranged at the bottoms of the left side and the right side of the outer barrel, a first through hole is formed in the side wall of the rotating barrel, a feeding port is formed in the right end of the rotating barrel, first brushes arranged spirally at intervals are arranged on the inner wall of the rotating barrel, a discharging port is formed in the bottom ofthe left side of the rotat