This machine is mainly used for the automatic making of flat masks: the whole roll of fabric is driven by rollers after unwinding, and the fabric is automatically folded and hemmed; Bridge of nose strip whole roll traction unroll,cut to length and guide into hemmed fabric. Two sides Ultrasonic welding to the seal, then ultrasonic 2 ends sealing, cutting and shaping by a cutter; conveying the mask to the two mask ear band welding stations through an assembly line, and finally forming the mask by ultrasonic welding; when the mask is made, it is transported to the flat belt line for collection.