Abstract
With the development of the world, plastics industry has become essential main ingredient among them. This article describes the plastic injection mold which is one of the major means of the manufacture of plastic products and emphasizes the design methods and processes of the plastic injection mold. This article details the main steps of the mold’s design through the process of the plastic products’ (car ashtray) injection mold design. The specific design elements including : the choice of the injection machine models, determine the surface, pulling mechanism and push-out design, of the design of the forming part, pouring system, cooling system and the design of the reduction of system. And I make a simple design for the other plastic injection mold parts. After the completion of the design I compiled the experience and views of the mold design’s ideas.
