The injection formation is one of main methods for thermoplastic Injection Mould, may complex model closely by a formation shape. In recent years, plastic products and plastic mold has developed rapidly and their applications become more and more extensive. One injection mold for a type of LCD box was designed in this dissertation. The software tools of UG and AutoCad are mainly used in the design process，and the advantages of computer-aided design programs was fully utilized to achieve the design scheme. .Firstly, the author chose a single parting surface for the mould according to the analysis of the plastic part craft, and finished mold parts modeling with the UG Moldwizard. Then based on the design results, all the other components assemblies were modeled in the UG, such as the modeling of ejection parts, guide parts ,and other structure parts and so on and be in progress having a serious trial with the core secretly scheming against. Finally,. the assembly drawing and some of the important parts drawings were made in the AutoCad. As a whole the mould is simple in structure and good at working reliability. The design of this injection mold is of some significance for the fact production.
Keywords：Plastic of injection molding UG Autocad Mould design
