The invention discloses a
hot melt adhesive dispensing valve, and belongs to the technical field of
mechanical equipment. According to the
hot melt adhesive dispensing valve, an
adhesive cylinder is arranged on the outer side of a valve body, and a
copper pipe at the center inside the adhesive cylinder and heat conduction fins extending to the periphery on the outer side surface of the
copper pipeare used for
heat transfer, so that the heating area of adhesive in the adhesive cylinder is increased, the adhesive is heated more uniformly, and the frequency of blockage caused by the uneven heating of fluid is reduced; a heating rod in the
copper pipe preheats the adhesive at low and medium temperatures, an adhesive storage cavity, away from the adhesive cylinder, in the valve body is a high-temperature heating area, and the interference between the heating rod and the high-temperature heating area is avoided; and a spring seat is moved downwards to compress a spring by rotating a
threaded rod, so that the compression amount of the spring is changed, the greater the compression amount of the spring is, the greater the elastic force of the spring is, then the speed of pushing a pressing head to move downward is changed, the earlier the pressing head blocks an adhesive outlet, the less adhesive flows out, on the contrary, the lower the
moving speed is and the later the pressing headblocks the adhesive outlet, the more adhesive flows out, and the adjustment of the adhesive outlet is achieved.