Automatic cartoning machine feed is generally divided into three entrances: manual entrance, medicine bottle entrance and machine package box entrance. The whole process from machine-pack box feeding to final packaging molding can be roughly divided into four stages: unboxing, opening, filling, and closing. The unloading action is usually by a suction cup to suck a carton from the carton feeding port, down to the main line of the carton, the carton is fixed by a guide rail and a push plate is used to open the carton. At the same time, there will be two The forward-moving card bit rises from below, jams the side of the carton from the front and back, so that the box opens at a right angle and moves forward to the loading area. After filling in the filling area, the mechanism of the machine will fold the ears into the left and right guide rails, and then perform the closing action. The pre-closing mechanism will first bend the tongue of the box, and then a push plate pushes the lid to bend, so that the tongue is inserted into the box and the lock buckle is fastened. The closing action is a critical action, and the quality of completion has a lot to do with the structure of the carton and the accuracy of the machine adjustment.