The paper introduces the structure and design characteristics of the heat runner injection mold for one kind of beverage bottle parison tube.

By adding molten iron scrap to enhance the chute and adjust the distance between the pipe mold, pipe mold reform and other measures will be laminated Dabao tube reduced the percentage of 0.68%.

Introduced the structure of medical soft plastic tube; and technology analysis; and structure design of injection mold and mold work principle.