摘要
以宾利车某内饰件为研究对象,分析了内饰件的成型工艺性;针对双色模具不能利用开模动力抽芯设计了顶针板抽芯机构;针对产品后模外侧滑块多,环绕式直通冷却水道不能靠近产品,采用在滑块间设计竖直水道;针对产品为扁平的长方形框状结构进胶困难,设计了多点进胶的点浇口浇注系统,取得了较好的实际应用效果。经检验,所设计的双色模具结构合理,动作可靠,可满足生产要求。
Taking an interior trim part in Bentley automobile as an example,the injection molding principle for bicolor plastic parts was analyzed.Because the powder of opening mould cannot be used for core-pulling,a slide driven by an ejector plate was designed.A cooling water channel between slides was designed to make it apart from the interior.Moreover,the multiple pin-point gates were designed to overcome the difficulty of ejection.The results indicated that the structure of designed mould in this work was reasonable and reliable,and it could meet the requirements of production of bicolor injection-molding parts.
出处
《中国塑料》
CSCD
北大核心
2017年第8期122-126,共5页
China Plastics
基金
广州市先进制造技术特色专业学院项目
关键词
双色注塑模具
轿车内饰件
结构设计
顶针板抽芯机构
bicolor injection mould
automobile interior trim part
design
slide driven by ejector plate
