汽车座椅头枕套锁扣注射模设计  

Design of Injection Mold for Lock Catch of Automobile Seat

作　　者：方迪成 蒋燕[1] Fang Dicheng;Jiang Yan(Shantou Polytechnic,Shantou,Guangdong 515078,CHN)

机构地区：[1]汕头职业技术学院,广东汕头515078

出　　处：《模具制造》2021年第6期40-44,共5页Die & Mould Manufacture

基　　金：汕头职业技术学院“创新强校工程”(2019-2021年)建设项目:轻工装备产业学院建设。

摘　　要：分析了某汽车座椅后排头枕套锁扣塑件的工艺特点,介绍了该塑件注射模的结构设计和工作过程。由于塑件的表面既有侧凹与突耳结构又有方孔穿过侧凹而形成的内凹,脱模困难,创新设计了动模滑块带定模滑块的脱模机构,定模滑块在开模前先完成抽芯后附着在动模滑块上,开模时利用斜导柱的拨力带动动模滑块完成侧向抽芯,通过限位螺钉、弹簧、尼龙胶塞等零件实现了模具有序的分型与定距。为保证塑件表面质量,在塑件侧面采用潜伏式浇口浇注;为了保证滑块下司筒的安全,设置了弹簧与摆杆组合的先复位机构,模具结构合理,运行可靠。The technological characteristic of lock catch of rear row head pillow cover of automobile seat was analyzed and introduced the structural desige and operating process of the injection mold for this part.Because the surface of the plastic part has both side concave,lug,and square hole passing through the side concave to form the inner concave and the product is difficult to demould,the demoulding mechanism of the core slider drives the cavity slider was innovatively designed,the cavity slider is pulled out before the mold is opened and then attached to the core slider,when opening the mold,the pulling force of the inclined guide pillar is used to drive the core slider to complete the side core-pulling,stop pins,spring and nylon shutters are used to open the mold sequentially and determine the opening distance.In order to ensure the surface quality of plastic parts,submarine gate from the side of plastic parts was adopted.In order to ensure the safety of the ejector sleeve under the slider,the first reset mechanism composed of spring and swing rod is set,such a mold structure was rational and safe in operation.

关 键 词：锁扣 顺序开模 滑块 潜伏式浇口 先复位机构 注射模 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]