Box opening mechanism of full-automatic box opening and closing machine

The utility model discloses a box unpacking mechanism of a full-automatic box unpacking machine in the technical field of box unpacking machines, which comprises a box unpacking mechanical arm, the box unpacking mechanical arm is arranged on the side edge of a conveying line, the conveying line is used for conveying cartons, the box unpacking mechanical arm comprises a support plate and a rotating rod, the support plate is an L-shaped plate, and vertical rods are symmetrically arranged on the two sides of the top end of a vertical plate of the support plate. According to the scheme, the position of a paper box can be accurately controlled through the arranged laser positioner, the box opening mechanical arm is started in time to conduct box opening action, when the box opening mechanical arm is used, the hook claw part is inserted into a gap of a paper box panel through overturning, then the box opening mechanical arm rotates reversely, the opened hook claw part can open the paper box panel, and therefore the