The working process of the automatic folding and sealing machine is to pack the product into the sealing machine through the conveyor chain (belt, roll), and submit it to the conveying mechanism, and the two sides of the carton are clamped by the clamping belt, and the forward movement is made. The front short tongue is automatically bent by the press tongue frame, and the back short tongue is automatically bent by a detection signal (photoelectric signal) when the carton enters the carton sealing machine roller. The carton continues to move forward, and the left and right long tongue is automatically bent to the middle through the guide bar. At the same time, the belt of the press box mechanism synchronizes the left and right long tongue of the carton, so that the box, tongue and glue together. Complete the sealing and shaping action, and then the last process of product packaging - automatic sealing.