Commodity outer package printing device

The utility model belongs to the field of outer package printing, and particularly relates to a commodity outer package printing device which comprises a bottom plate, a U-shaped frame, a square cylinder, an adjusting screw rod, a cylinder, an L-shaped groove, a sliding block, an inclined block, a T-shaped block, a first spring, a T-shaped round block, a clamping block, a clamping groove, a second spring, a square block, a fastening bolt, a motor, a lead screw and a ball nut pair. A cylinder is installed at the bottom end of an adjusting bolt, so that a sliding block is installed at the bottom end of the interior of a vertical groove of an L-shaped groove, then the cylinder is rotated, the cylinder rotates to enable the sliding block to enter a transverse groove, the sliding block extrudes an inclined block, and the inclined block moves to drive a T-shaped block to move and extrude a first spring; under the action of the elastic force of the first spring, the T-shaped block moves to drive the inclined block t