Aiming at the problem that the left and right rear fog lamp frames of new energy vehicles were easy to produce weld lines during injection molding and easy to deform during demoulding,a side gate two plate hot runner Injection mold construction with two cavities was designed.Based on Moldflow analysis,the optimal gate positions for the left and right rear fog lamp frames were determined.The injection system,cooling system,core pulling mechanism,demolding mechanism,and other structures of the mold were designed by considering the size of the plastic parts,production technology,and efficiency.In order to control the weld line of plastic parts,a composite runner combining cold runner and hot runner was used,and the time of the injection point was controlled by the sequence valve;In order to achieve efficient release,the mold introduces the combined release structure of the inclined top mechanism and the side core pulling of the inverted inclined guide column,and the release mode of pushing plate driven by the two sides of the oil cylinder was adopted instead of the traditional injection pusher.Finally,UG software was used to analyze and design the guide mechanism,reset mechanism and other auxiliary mechanisms of the mold,and the mold design was completed.
关键词
左右后雾灯边框/顺序阀/热流道/注塑模具/Moldflow模流分析
Key words
left and right rear fog lamp bezel/sequential valve/hot runner/injection mold/Moldflow analysis
维普
万方数据