Plastics Mold is a technology equipment or tool .It is use of a specific shape ,through a certain approach to form plastic products at today industrial production .It belongs to die cavity areas .the injection mold is one of the type of rapid developments .therefore, the study of injection mold to the understanding of production process and improve the product quality have a great significance. This paper discuss the designing of the injection mold for a electric shell.this design main introduced the basic principe of design on the injection mold ,specially proposed the basic principle of have a better performance to forming ,determined the type face ,such as the pouring system and exhaust systems and so on ,calaulate the size of the molding components .There are one holes at product circular wall ,so that ,It must be use side core pulling bodies to achieve . though this design ,I have the deeper understanding of the structure and working principle of the injecting mold .in the meantime ,I master the use of graphics software noting the some of the details .at the process of designing cultivate a work patience.
KEY WORDS : Plastic Molds ; Plastic Injection Mould; side pumped core.
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