This paper has elaborated the injection mould parametric design of the Round Box, and mentioned the general steps of injection mould design. During plastic part analysis and structure analysis, MPA is used to simulate the filling process, analysis the parameters’ change during molding and forecast the filling quality. How to choose machine and check the main parameters is involved in this paper. During the structure design of the mold, the principle of each part is been listed out and analysised combining this title. The issue of designing parting plane, there list three programs and choose the best one at last. The determination of side core’s parameters is referenced to the method of oblique guide. The design points of the side core is listed out. The temperature adjusting system’s design and analysis is the focus in this paper. Here elaborated the importance of the temperature adjusting system, and detailed calculated the heat that enter and out the mold, then determined the parameters of cooling system. After the design of structure, this paper simply explains the assemble order, analyses the course of mold opening and closing. It analyses the problem that would appear during testing the mold and gives some blue print to solve those problem. UG is being used to built of three-dimensional model. It makes the design a easy work, and some problems like intervene has been found out in time.
