汽车内饰件储蓄盒模具脱模改进设计  

Improved Design on Demoulding Method of Injection Mould for Saving Box of Automobile Interiors

作　　者：徐自明[1] 王乾[1] Xu Ziming;Wang Qian(Changzhou Institute of Light Industry Technology, Changzhou 213164, China)

机构地区：[1]常州轻工职业技术学院,江苏常州213164

出　　处：《工程塑料应用》2017年第6期86-89,100,共5页Engineering Plastics Application

基　　金：常州市科技型中小企业技术创新资金项目(CC20130013)

摘　　要：针对汽车内饰件储蓄盒内腔底部表面存在印痕影响其外观品质的问题,对推杆端面与塑件表面的接触位置进行修改,将推杆端面纹理复映在没有外观质量要求的塑件外背底面,并在不影响塑件使用性能情况下,在塑件外背两侧设计4条对称分布的耳带,以实现塑件的顺利脱模。通过理论分析并结合实际试验确定了该塑件耳带结构参数直径取值3~4 mm。实际注塑试验证明,该设计能够可靠地实现塑件顺利脱模,有效地保证了塑件的外观品质,为同类产品的结构及模具设计提供了参考。In order to solve the problem that the imprints existed on the bottom surface of the inner cavity of a auto savingbox affects the appearance quality of the automobile interior part,the contact position of ejector pin end surface and the plastic partsurface was changed,the imprints of the ejector pin end surface was duplicated on the outside bottom of the plastic part without therequirements of appearance quality.Then four symmetrical ear bands were designed on both sides of the plastic part outside for realizingthe successful demoulding and they had no effects on the using performance of the plastic part.Based on the theoretical analysisand practical tests,the diameter for the ear bands was determined and it was3–4mm.The injection molding experiments show thatthe design can reliably realize demoulding and effectively guarantee the appearance quality of the plastic part.It provides referencefor the design of similar products.

关 键 词：汽车内饰件 储蓄盒 注塑模具 脱模 改进 设计 

分 类 号：TQ320.52[化学工程—合成树脂塑料工业]