Application of Double-stage Linkage Core-pulling Mechanism to Mould for Low Pressure Casting

Lin Hongqi1; Yu Shuling2; Chi Guizhi2

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Application of Double-stage Linkage Core-pulling Mechanism to Mould for Low Pressure Casting
Issue 9, Pages: 703-704(2007)
Published： 2007 ，
DOI：

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[1]林红旗,余书玲,迟贵志.二级联动抽芯机构在低压铸造模具中的应用[J].特种铸造及有色合金,2007(09):703-704+654.

Lin Hongqi1, Yu Shuling2, Chi Guizhi2. Application of Double-stage Linkage Core-pulling Mechanism to Mould for Low Pressure Casting. [J]. Special Casting & Nonferrous Alloys (9):703-704(2007)
[1]林红旗,余书玲,迟贵志.二级联动抽芯机构在低压铸造模具中的应用[J].特种铸造及有色合金,2007(09):703-704+654. DOI：

Lin Hongqi1, Yu Shuling2, Chi Guizhi2. Application of Double-stage Linkage Core-pulling Mechanism to Mould for Low Pressure Casting. [J]. Special Casting & Nonferrous Alloys (9):703-704(2007) DOI：

摘要

低压铸造零件中一些较长、复杂的侧型孔

因轴芯距离长

包紧力大

一次抽出容易造成孔口薄壁部位的变形或拉裂

并使模具外形尺寸较大。为此采用了二级联动抽芯机构:开模时

大滑块静止不动

长抽芯以大滑块为导向先抽出一定距离后

大滑块和长抽芯再一块抽出。这样既缩短了抽芯距离

又分解了起始包紧力

从而有效克服了一次抽芯的弊端。经实践证明

结构经济、合理

适用性强。

Abstract

The mould structure

gating system and side-core-pulling mechanism of low pressure casting mould were expounded by analyzing structure of diesel engine bracket

especially introducing the application of double-stage linkage core-pulling mechanism to core-pulling in low pressure casting mould. The production verification shows that the mould exhibits economic ment and rational features.