The utility model relates to the technical field of packaging box
processing, in particular to a paper-plastic bowl-shaped packaging box single-side
notching device which comprises a
workbench, a
notching mechanism used for
notching a paper-plastic bowl-shaped packaging box single side is arranged on the upper surface of the
workbench, and the notching mechanism comprises an air cylinder, a base, a spring, a pressing block, a punch, a product positioning structure, a receding space and a discharging position. A channel for the punch to move is formed in the outer portion of the pressing block, the paper-plastic bowl-shaped packaging box is positioned through the product positioning structure, meanwhile, the pressing block is matched with the spring, the packaging box is fixed before
cutting, and due to the fact that the face, close to a product, of the pressing block is machined into the concave curved face matched with the arc face of the upper edge of the product, the product can be conveniently
cut. According to the technical scheme, reliable positioning constraint can be formed on a product, large positioning deviation is avoided, the accuracy of the notch position is guaranteed, meanwhile, the punch is arc-shaped, it is guaranteed that
cutting force is evenly distributed, continuous and stable
cutting can be conveniently achieved, and the risk that the product is damaged is reduced.