Carton outer flap folding mechanism

The utility model relates to a folded folding mechanism of a folding carton outside a carton packing device. Used for the folding of leaves outside the carton. It is composed of a pair of oppositely disposed bending mechanisms. Each bending mechanism includes a cylinder 1, a rocker arm 2, a shaft 3 and a bellows plate 4. The piston rod of the cylinder 1 is articulated with the rocker arm 2, the rocker arm 2 and the buckle plate. 4 is fixed on the shaft 3, and the cylinder 1 is vertically arranged on the packaging machine frame on both sides of the outer flap of the carton. The cylinder piston rod moves to drive the rocker arm and the shaft to rotate. The shaft drives the bending plate to rotate, and the bending plate rotates from the bottom upward to complete the folding of the outer leaf of the carton. The utility model has the advantages of low power, low energy consumption and good stability.