Hot runner mold's hot mouth heating ring

The utility model discloses a hot runner mold's hot mouth heating ring, including hot mouth body and hot mouth backshell, the insulating coating of one deck has been paintd on the surface of hot mouth body, and the hot mouth body surface of paining insulating coating from left to right respectively fixed mounting have heating ring a, heating ring b and a heating ring c, heating ring a, heating ring b and heating ring c's internal surface adopts the heating structure of copper wire spiral, and heating ring a, heating ring b and heating ring c's outer surface coating has the heat preservation. This hot runner mold's hot mouth heating ring adopts compartment heating ring to arrange the structure and adopt three heating ring, can realize fully heating hot mouth runner to sparingly make the material than whole cover, reduce the use of electric power resource, can reduce preparation and manufacturing cost, make whole work stable more high -efficient, through being provided with the radiation protection sleeve pipe,