作者：杨亘，朱慕洁，畅国帏，柯美元（顺德职业技术学院智能制造学院，广东佛山528333）
摘要：针对某汽车后视镜一体式外壳进行了注射工艺分析，设计了1 副1 模2 腔的热流道两板注射模，模具采用扇形浇口、滑块外抽芯机构、斜推杆内抽芯机构、二次推出机构，为保证塑件的成型质量，模具还采用了气辅成型技术。实践证明，该模具结构紧凑、工作过程稳定，成型的塑件质量良好。
关键词：后视镜；一体式外壳；抽芯；斜推杆；二次推出
中图分类号：TG76;TQ320.66 文献标识码：B 文章编号：1001-2168（2020）10-0041-04
DOI：10.16787/j.cnki.1001-2168.dmi.2020.10.009
Design of injection mould for integrated shell of rearview mirror
YANG Gen, ZHU Mu-jie, Chang Guo-wei, Ke Mei-yuan(School of Intelligent Manufacturing, Shunde Polytechnic, Foshan, Guangdong 528333, China)
Abstract: According to the analysis of the injection process for the integrated shell of rearview mirror, a two-plate injection mould with 2 cavities and hot runner was designed. It adopted sector gate, outer core-pulling mechanism with slider, inner core-pulling mechanism with inclined ejector pin, and secondary ejection mechanism. In order to ensure the moulding quality of plastic parts, the gas assisted forming technology was applied. The practice showed that the mould structure was compact, the working process was stable, and moulded plastics were qualified.
Key words: rearview mirror; integrated shell; core pulling; inclined ejector pin; secondary ejection