40
文章编号：1001-4934(2017)04-0040-03
Die and Mould Technology No, 4 2017
吸气管嘴注塑模设计
高俊丽，姚远
（航宇救生装备有限公司，湖北襄阳441000）
摘要：吸气管嘴是一种带台阶圆形弯管状长薄壁注塑件。经过对吸气管嘴形体分析和注塑模结构方案可行性分析，注塑模采用了中模型芯和动模型芯所组成的型腔来成型吸气管嘴的外形；采用了液压油红抽芯机构抽取10.5+%70mmX80mm孔的型芯；采用了弯销滑块抽芯机构抽取10.5+。70mmX13.5mm孔的型芯。这些措施的
实施使得注塑模结构更紧漆和合理，加工的吸气管嘴质量优良。关键词：吸气管嘴；注塑模；型腔；抽芯机构；液压油缸
中图分类号：TG241
文献标识码：B
Injection mould design of the suction nozzle
GAOJun-li,YAOYuan
Abstract: Suction nozzle is a kind of thin wall injcction molded parts with stepped round tu-bular. Through the analysis of the suction nozzle form and the feasibility analysis of injec-tion mould structure scheme, the injcction mould uses the cavity consisting of mould core and dynamic mould core to form thc shape of the suction nozzle; the hydraulic oil cylinder core-pulling mechanism is adopted to cxtract the core of 10.5*o.° mm× 80 mm hole; The pin bending slide block core-pullingmechanism is used to extract the core of 10.5*g.7"mm X 13.5 mm hole. The implementation of these measures make the injection mould structure very compact and rcasonable, and the processing of the suction mouth good quality.
Keywords: suction nozzle; injection mould; cavity;the core-pulling mechanism; the hydrau lic oil cylinder
0
引言
吸气管嘴的主要功能是给救生船或教生背
心等水上救生类产品充放气，并维持气囊充气后的密封，是个体防护类产品的关键零部件。对吸气管嘴注塑件成型的尺寸、均匀性等成型
质量有较高的要求。收稿日期：2016-12-02
作者简介：高俊丽（1981一），女，高级工程师。万方数据
吸气管嘴形体分析 1
吸气管嘴如图1所示。 1.1吸气管嘴材质
选用聚氨脂弹性体（PUElastomer）。聚氨酯弹性体是聚氨酯合成材料中的一个品种，由于其结构具有软、硬两个链段，可以对其分子进