汽车右后门板顺序阀热流道大型薄壁注塑模具设计

Design of large and thin-welled injection mold with SVG for car right-tuer hinten

根据汽车右后门板的结构特点,设计了一副大型薄壁顺序阀控制的热流道注塑模具。通过前期的模流分析,确定了先进合理的模具浇注系统。通过采用"斜顶+斜顶杆"与"油缸+T形块+滑块"的侧向抽芯结构,成功解决了塑件内外倒扣多、脱模困难的难题。通过采用"直通式水管+隔片式冷却水井"近乎"随形水路"的温度控制系统,模具成型周期下降了约10%。模具第一次试模成功,结果表明,成型塑件精度达到了设计要求。

In this work,we designed a large and thin-walled injection mold with a sequential valve hot runner.The advanced and reasonable mold gating system was determined using the analysis of mold flow.The difficult problem from demolding plastic parts was successfully solved using a side core-pulling structure with a configuration of′inclined top+inclined top rod′and′oil cylinder+shovel base+slider′.The labor productivity increased by about 10%by using the conformal cooling channels.The first shoot was successful and the precision of the plastic parts met the requirements of mold design.