工程塑料应用
工程塑料應用
공정소료응용
ENGINEERING PLASTICS APPLICATION
2015年
4期
68-72
,共5页
杨安%肖国华%韩立艳%华明伟
楊安%肖國華%韓立豔%華明偉
양안%초국화%한립염%화명위
内螺纹脱模机构%汽车油封盖%结构设计%注塑模具
內螺紋脫模機構%汽車油封蓋%結構設計%註塑模具
내라문탈모궤구%기차유봉개%결구설계%주소모구
internal thread demoulding mechanism%car oil seal cover%structure design%injection mould
介绍了一种圆盖状汽车油封盖产品的注塑模具结构设计,该产品内部设计有深牙内螺纹,为保证注塑后产品的顺利脱模,设计模具结构时,其螺纹型芯部分的设计采用了型芯块内缩式螺纹脱模机构设计,该脱模机构运用斜导槽角度不同所产生的侧抽芯距离不相等的机构设计原理,将型芯分割为六个下型芯分块,按其预定的内收距离大小分为两组,通过两组下型芯块在顶出时内收的速度和距离不同,在顶出结束时能实现两组下型芯块同时向中央收缩,但收缩距离不相等,因而相邻型芯块之间能产生运动间隙,使得各下型芯分块在水平面上都向中央靠拢,外侧面与产品脱离,从而实现产品脱模的目的;同时,配合以二次顶出机构从中央顶出产品,实现了产品的自动化注塑生产。
介紹瞭一種圓蓋狀汽車油封蓋產品的註塑模具結構設計,該產品內部設計有深牙內螺紋,為保證註塑後產品的順利脫模,設計模具結構時,其螺紋型芯部分的設計採用瞭型芯塊內縮式螺紋脫模機構設計,該脫模機構運用斜導槽角度不同所產生的側抽芯距離不相等的機構設計原理,將型芯分割為六箇下型芯分塊,按其預定的內收距離大小分為兩組,通過兩組下型芯塊在頂齣時內收的速度和距離不同,在頂齣結束時能實現兩組下型芯塊同時嚮中央收縮,但收縮距離不相等,因而相鄰型芯塊之間能產生運動間隙,使得各下型芯分塊在水平麵上都嚮中央靠攏,外側麵與產品脫離,從而實現產品脫模的目的;同時,配閤以二次頂齣機構從中央頂齣產品,實現瞭產品的自動化註塑生產。
개소료일충원개상기차유봉개산품적주소모구결구설계,해산품내부설계유심아내라문,위보증주소후산품적순리탈모,설계모구결구시,기라문형심부분적설계채용료형심괴내축식라문탈모궤구설계,해탈모궤구운용사도조각도불동소산생적측추심거리불상등적궤구설계원리,장형심분할위륙개하형심분괴,안기예정적내수거리대소분위량조,통과량조하형심괴재정출시내수적속도화거리불동,재정출결속시능실현량조하형심괴동시향중앙수축,단수축거리불상등,인이상린형심괴지간능산생운동간극,사득각하형심분괴재수평면상도향중앙고롱,외측면여산품탈리,종이실현산품탈모적목적;동시,배합이이차정출궤구종중앙정출산품,실현료산품적자동화주소생산。
A injection molud structure design was introduced which for a dome-shape car oil seal cover product that designed a deep internal thread interior;when the mould structure of car oil seal cover was designed,to be ensured the product could be demoulded smoothly after the product was injected,a inner shrinkage core block type of thread demoulding mechanism was designed which the threaded core part was separated into six blocks,and each one could be dragged to the central of major core;the characteristic of the ejection mechanism was the use of theory that different oblique angles resulted in different moving distance;so,according to a predetermined gap,six blocks were divided into two groups with a different angle,and the two groups had the different speed and distance when they were dragged toward the central at the same time,therefor the horizontal plane gap was produced because of unequal distance between the blocks,such that each block in the horizontal plane could be closer to the center with the product from the outer surface,the purpose of releasing the product was achieved;meanwhile, with the secondary ejection organization,the product was ejected from the central,automated injection moulding production of automotive oil cover products is realized.