Packaging bag ultrasonic press-fit device

The utility model discloses a packaging bag ultrasonic pressing device which comprises a top plate, an upper sliding groove is formed in the middle of the top plate, the top plate is connected with an ultrasonic welding machine through fixing bolts and nuts, the output end of the ultrasonic welding machine is connected with a heating rolling probe, and a heating body is arranged on the inner side of the heating rolling probe. The side face of the top plate is connected with a connecting support through bolts, the connecting support is connected with a transverse cooling fan through bolts, a lower plate is arranged below the top plate, a lower sliding groove is formed in the middle of the lower plate, a heating cushion block is arranged on the lower plate, and a heating body is arranged on the inner side of the heating cushion block. According to the utility model, the end head of the zipper is flattened by ultrasonic waves, so that the end head of the zipper is thoroughly integrated with a thin film, thereby