摘要
Abstract
Based on the analysis of the structural characteristics of two supports with large structural differences,the preliminary design of four-cavity mold was completed by mixing them in the same mold according to the actual needs.The simulation of flow channel balance was carried out by using Moldflow.The size of branch runner and gate was optimized.The cooling water channel was circulating.The analysis results of'cooling+filling+holding+warping'show that the temperature difference between the inlet and outlet of the cooling medium does not exceed 0.33 K,and the filling effect is relatively balanced.The maximum total warping deformation of the two supports is 0.138 5 mm and 0.147 8 mm,respectively,which meets the requirements.Three sets of sliders and two sets of lifters were used to realize side core parting and stripping.Multiple inserts in the cavity and core could reduce the cost and facilitate mold repair.Finally,a set of combined four-cavity two-plate injection mold which can be used in actual production was obtained.It can provide some reference for the injection mold design of combined multi-cavity and unbalanced runner with different models.关键词
混合四腔/注塑模具/模具设计/模流分析/翘曲变形Key words
combined four-cavity/injection mold/mold design/mold flow analysis/warpage deformation分类
化学工程
