Setting equipment for packaging box forming machine

The invention discloses setting equipment for a packaging box forming machine. According to the technical scheme, the setting equipment comprises ultrasonic generators and a bracket; the bracket is provided with a paperboard channel, a paperboard pushing mechanism is arranged at a feeding inlet of the paperboard channel and comprises a paperboard pushing head for pushing paperboards, and a paperboard pushing driving device for driving the paperboard pushing head; the paperboard pushing head comprises a pushing surface abutting against the paperboard for forming the bottom of a packaging box, and abutting surfaces which are located on the periphery of the pushing surface and used for abutting against the paperboards for forming the sides of the packaging box; the periphery of the paperboardchannel is provided with a receiving plate which can abut against the outer side walls of the paperboards which are fed into the paperboard channel and used for forming the packaging box; the bracketis provided with a receiv