Design And Optimization Of Injection Mold Cooling System For Automobile Water Chamber

With the increasing proportion of plastics in the manufacturing process of auto parts,the plasticization and lightweighting of auto parts products has become an important indicator of the development status and development level of the auto industry.In the injection molding stage of the plastic part,the cavity temperature distribution of the mold during injection directly affects the molding quality and production efficiency of the plastic part.The control and adjustment of the cavity temperature is mainly completed by the cooling system of the injection mold.Therefore,by analyzing the cooling system of the injection mold and optimizing it,the temperature distribution and change rule of the mold cavity surface of the mold can be obtained,and finally the molding quality of the plastic part can be improved.The purpose of this article is to analyze and optimize the cooling system of injection molds in automotive water chambers to provide the layout and design principles of the cooling pipes for injection molds in automotive water chambers.Firstly,conduct thermodynamic analysis of the heat exchange process and related principles between the mold and the cooling system in the injection molding process,build a mathematical model of the entire cooling system,and accurately model the cooling process of the injection mold and finite element numerical simulation,build the mold temperature Three-dimensional transient analysis model of field and injection molds,to study the factors that affect product cooling time,mold temperature distribution uniformity,and product cooling uniformity.Secondly,select the cooling time and warpage deformation values of the plastic parts to optimize the level,and use the orthogonal experiment method and the multi-objective optimization method.The diameter of the cooling pipe of the front and rear molds,the distance between the water passages,and the distance from the center line of the water passage to the cavity are experimental factors to optimize the design parameters of the cooling pipes.The comprehensive coefficient analysis method is adopted to optimize the process parameters of the cooling system by multi-objective optimization using melt temperature,mold temperature,coolant temperature,and Reynolds number as experimental factors.Finally,optimize the layout of the straight-through waterway and the conformal waterway for the local heat collection area of the automobile water chamber product.In this paper,the design principles and specifications of the cooling system used for the injection molding water chamber plastic part mold are provided,which provides a theoretical basis for the design of the mold cooling system,improves the rationality of the mold design,and improves the cooling efficiency of the mold and the production efficiency of the enterprise.Engineering value.