ABSTRACT:Plastic industry is one of the fastest growing industries in the world. Daily use plastic products almost every day in the life. Most of these products can be manufactured by injection molding method. As is well-known, plastic injection molding process is made of the shape of the product and the making craft of making complex shape product at low cost.
This graduation design is the main content of the compasses box shell injection mold design. From the plastic material performance analysis, according to the basic shape and size of plastic parts, selection of injection molding method. Through the analysis of plastic parts manufacturability and grasp of the mold manufacturing conditions and manufacturing level, work out forming process card. After make a forming process card, begin the mould structure design. Die structure design process including: cavity the determination of the number and location of the overall structure of the mould form design, dynamic model and the determination of dimensioning parts mold forming, gating system and the determination of size, determine the way of parting, the determination of thermal control and exhaust system, the choice of the die set for all steps has been completed, and began to draw the structure of the mould sketch, depending on the size check relevant dimensions of injection mould and injection molding machine, and the process parameters of verification and calculation after preliminary review to identify the problems and correct, and then draw die general assembly drawing, according to the assembly drawing molding parts and all parts need machining work diagram, at the same time consider parts processing technology.
Key words: shell on the compass; Injection mould Plastic; Injection machine；UG...