摘要
某电动车前罩采用注射成型,其模具使用3点式热喷嘴+侧浇口进行浇注,确保型腔充填饱满;设置了14个带油槽自润滑斜顶机构,延长了模具使用寿命。模具二次抽芯机构利用液压缸驱动一次型芯先抽芯,一次型芯通过T形导轨驱动二次型芯完成二次抽芯,然后一次型芯再带动二次型芯从成型塑件中同步移出,解决了塑件局部狭窄区域脱模困难的难题,并介绍了模具成型零件的数控加工路径。
An electric vehicle front cover was injected by using the mould with 3-point hot nozzle and side gate, which ensured the cavity was filled. Fourteen self-lubricating inclined ejecting mechanisms with oil groove were set up to prolong the service life of the mould. The secondary corepulling mechanism of the mould used a hydraulic cylinder to drive the primary core to pull the core first. The primary core drived the secondary core through the T-shaped guide rail to complete the secondary core pulling, and then the primary core drived the secondary core to move out of the plastic synchronously, which solved the problem of difficult demoulding in local narrow area of the plastic part. The basic path of NC machining path for moulding parts were introduced.
作者
程文
肖国华
陆宝钊
CHENG Wen;XIAO Guo-hua;LU Bao-zhao(Yangming College,Ningbo Polytechnic,Ningbo,Zhejiang 315800,China;School of Me-chanical and Electrical Engineering,Zhejiang Business Technology Institute,Ningbo,Zheji-ang 315412,China;Guangzhou Institute of Mechanical and Electrical Technician,Guang-zhou,Guangdong 510370,China)
出处
《模具工业》
2022年第10期49-53,共5页
Die & Mould Industry
基金
宁波职业技术学院校级课题项目(NZ21RC006)
浙江工商职业技术学院校级课题项目(ksjy2021036)。
关键词
热流道
数控加工
模具设计
注射成型
二次抽芯机构
hot runner
numerical control machining
mould design
injection moulding
secondary core-pulling mechanism
