Abstract: A fast hot melt adhesive gun includes an adhesive gun housing, wherein an end part of one end of the adhesive gun housing is provided with an adhesive inlet, a heating cavity used for heating an adhesive rod is formed in the adhesive gun housing, an inner wall of the adhesive gun housing is fixedly connected with a chute for the adhesive rod to slide, the heating cavity comprises a funnel-shaped heating head, a rear end of the funnel-shaped heating head is in communication with a connecting pipe, an outside of the funnel-shaped heating head is wrapped with a PTC heating layer, an inner diameter of the funnel-shaped heating head is gradually reduced from a first end at the connecting pipe to a second end at the funnel-shaped heating head, a front end of the funnel-shaped heating head is in communication with a copper sleeve.

Abstract: A fast hot melt adhesive gun includes an adhesive gun housing, wherein an end part of one end of the adhesive gun housing is provided with an adhesive inlet, a heating cavity used for heating an adhesive rod is formed in the adhesive gun housing, an inner wall of the adhesive gun housing is fixedly connected with a chute for the adhesive rod to slide, the heating cavity comprises a funnel-shaped heating head, a rear end of the funnel-shaped heating head is in communication with a connecting pipe, an outside of the funnel-shaped heating head is wrapped with a PTC heating layer, an inner diameter of the funnel-shaped heating head is gradually reduced from a first end at the connecting pipe to a second end at the funnel-shaped heating head, a front end of the funnel-shaped heating head is in communication with a copper sleeve.