Design and Analysis of the Two Color Mould of the Auto Pipeline Bracket

The auto pipeline bracket is made in of nylon for a long time at home. Repeatelly rubbing hard nylon bracket and soft nylon will result in abrasion of outside pipeline, And it is dangerous. At FAW-Volkswagen Automotive Company Ltd., the pipeline bracket of autos is made of two materials in the future. It can reduce the abrasion of pipes and wires during auto working, and cut down the probability of accident.Firstly, the actuality and development direction of injection mould is introduced. Then the actuality and use about CAD/CAM/CAE is discussed. That includes: plastic material、molding machine、molding process、molding condition、hotting and cooling equipment, and so on. Designing swage of injection mould concern some caculation which provides some academic basis for designing the auto pipeline bracket mould.The article describes the mould design of the auto pipeline bracket. The mould has sixteen cavities. It can produce eight pieces at once and assure quality, so it is efficiency. The innovation design includes movable mould、stalionary mould and double deck tip system.Then, we adopt HsCAE3D 7.0 to analyze and forecast some physical parameters, such as, front flow location、fusion line、air pocket location、temperature field、press field、cutting force field、cutting speed field、surface directional、shrink index、density field、lock-mould-force and so on. It can support several cooling structure simulately during cooling course, it can afford the data of mould cavity surface temperature distributing; It can forecast produce stress distributing after pushed out of mould cavity, which will provide for final warp and shrink analysis, and it can forecast production distortion thing after pushed out of mould cavity. Though these analysis data and dynamic simulation, we can optimize feed systerm design and craftwork condition markedly. Finally It will shorten design period, decrease try-mould time, improve produce quality, and achieve the aim of debasing produce cost.