通过对汽车送风机前罩壳的结构特征进行分析,并依据注塑成型原理对结构进行了分类处理,针对其侧孔、侧凹较多且脱模困难的特点,采用了滑块分区、顶块+顶针联合顶出以及小型芯镶件等设计思路,实现了汽车送风机前罩壳的整体成型。同时,采用直接浇注方式、镶件孔隙排气、管道+水井冷却方式、4个侧面滑块脱模机构、3个顶杆+顶块顶出机构及其余辅助顶针等多种新型设计方式,并通过合理的设计优化,有效解决了产品多抽芯位成型困难的问题,保证了模具的设计质量。 Through the analysis of the structural characteristics of the front baffle of the automobile blower and the classification of the structure according to the principle of injection molding, aiming at the characteristics of the side hole and the undercut and the difficulty of demoulding, Thimble joint top and small core inserts and other design ideas to achieve the overall shape of the front of the car blower shell. At the same time, a variety of new design methods are adopted, such as direct casting method, pore venting of inserts, cooling of pipeline + well, four side slide release mechanisms, three top rods + top block ejection mechanism and other auxiliary thimbles, Through reasonable design and optimization, the problem of difficult molding of multi-core pulling products is effectively solved, and the design quality of the mold is guaranteed.