Abstract
This paper introduces the actuality and future trend of plastic mold industry, further more, also tells of the structure and classification of the plastic mold. It designs a mold through analyzing the structure process and characteristic of shave shell. It finishes the size calculation of the mold relative parts and type selection of injection machine. It integrates with computer aided technology and traditional mold manufacture technology, with PRO/ENGINEER software actualize three-dimensional split of the mold and part assemble process ，and finally fulfilling the two-dimensional part drawings and assemble drawing.
