Abstract
With the plastic industry swift and violent development, the plastic mould is playing the very important role in the plastic product development. In order to reduct the plastic mould production cost, improve the product quality, reduce product development time, forestall to occupy the market, it must develop the plastic advanced design of formation mould and the manufacutring technique.
Base on graduation fieldwork,the parameterization of the mold design is carried out bu consulting each kind of mold design handbook and the newest national standards. this paper firstly introduces main studying contents with its adopting methods, design’s difficulties and solutions, briefly expounding its development prospects. Next, the whole design process of injection mould is introduced, that is, analysis plastic part, choose injection machine with some of its parameters being checked so as to satisfy design demands, then the injection mould overall design is introduced, such as the forming parts and components design forming plastic part’s geometry and dimension, the pouring systems design, the overflow and bleed system design discharging air, the cooling system design, demould mechanism design isolating and retrieving already molding part, and mould-frame design.Helix-pillar and moving-core are used to form and extract the side-hole, helix-slider is used to extract the pock-hole’s block ears.The Sai Bao automobile instruments injection mould is finally completed,making the theory closely combine with the project actuality.
Keywords：Injection mould; Cooling system; Pouring system;
Side-extracting core mechanism; Helix-slider
