Cap screwing machine

The utility model discloses a cap screwing machine, including the organism, be provided with the pivot of sliding along vertical direction on the organism, the lower extreme of pivot is provided withthe jack catch, is provided with the impeller that is used for promoting the pivot on the organism, the one end of jack catch is kept away from in the pivot to the impeller setting, is provided with on the organism to be used for driving pivot pivoted drive assembly, be provided with in the pivot with drive assembly complex transmission piece, still set up on the organism and be used for the transmission piece to break away from drive assembly's the piece that resets, when the impeller promoted the pivot campaign, the transmission piece and the drive assembly cooperation of extending on the pivot lateral wall, drive assembly drive pivot were rotated and are screwed the lid on the jar body, the transmission piece breaks away from with drive assembly under the effect of the piece that resets, makes the pivot stall,