冰箱零度室卡条注射模设计  

Design of injection mould for clamping strip of refrigerator zero-degree room

作　　者：陈思涛[1] 戚春晓[1] 郑鸿帆 黄华辉 戴德安 CHEN Sitao;QI Chunxiao;ZHENG Hongfang;HUANG Huahui;DAI Dean(Foshan Polytechnic,Foshan 528137,China)

机构地区：[1]佛山职业技术学院,广东佛山528137

出　　处：《模具工业》2024年第9期42-46,共5页Die & Mould Industry

基　　金：2022年广东省科技创新战略专项资金(大学生科技创新培育)项目(pdjh2022b1002);佛山职业技术学院校级科研项目(KY2021Y02)。

摘　　要：通过分析冰箱零度室卡条的结构特征,介绍了塑件注射模的设计过程。通过前期分析,确定了“热流道+普通流道”的浇注系统,设计“滑块+斜推杆”侧向抽芯机构实现塑件外凹槽倒扣顺利脱模,滑块成型结构由大滑块和4个滑块镶件连接组合,由于滑块脱模行程较长,采用滑块座延长其行程,降低制造成本,斜推机构由斜推杆、斜推导向块和斜推座组成并留有3mm的安全距离。采用“推杆+斜推杆”联合推出,确保塑件在推出过程中受力均匀。实践证明:使用该注射模能成型完整、表面质量良好的合格塑件。By analyzing the structural characteristics of the clamping strip of the refrigerator zero-degree room,the design process of the injection mould was introduced.Through preliminary analy-sis,the gating system of"hot runner+ordinary runner"was determined.A"slider+inclined ejector pin"lateral core-pulling mechanism was designed to realize the demoulding of the external groove.The forming structure of the slider was composed of a large slider and four slider inserts.Because of the long demoulding stroke of the slider,the slider seat was used to extend the stroke and reduce the cost.The inclined ejector mechanism was consisted of the inclined ejector guide block and the inclined ejector seat with a safe distance of 3 mm.The combined ejection of"ejector pin+inclined ejector pin"was adopted to ensure that the plastics were uniformly stressed.Practice has proved that qualified products with complete filling and good surface quality could be obtained by using the injection mould.

关 键 词：零度室 卡条 注射模 内抽芯机构 滑块镶件 

分 类 号：TG76[金属学及工艺—刀具与模具] TQ322.2[化学工程—合成树脂塑料工业]