Bag breaking mechanism

The utility model discloses a bag breaking mechanism which comprises a linear guide rail, a synchronous belt, a motor, a compression spring guide rod, a connecting block, a push block, a limiting block, an object removing block, a hopper fixing block, a blade, a cutter bar, a connecting rod, a swing arm, a hopper, a hopper fixing bottom plate, a gear, a rack, an opening and closing door and a cam follower. The hopper fixing bottom plate is mounted above the hopper fixing block; the blade is mounted on one side of the cutter bar; the cutter bar is in floating connection with the swing arm; the connecting block is hinged with the swing arm; the connecting block is fixed on one side of the linear guide rail; the connecting blocks are connected with synchronous belts; the motor is connected with the synchronous belt; the blade is fixed on the cutter bar, the cutter bar is connected with the swing arms in a floating mode, the connecting block is connected with the swing arms in a hinged mode, the blade is fixed on