To address the problem in the existence of gate marks on the surface of a shredder shell plastic part,a hot run-ner mold with a complex inverted structure and a rear mold feeding mode was designed.The ejection action was complet-ed through designing mechanical hooks.Considering the structural characteristics of the plastic parts with multiple invert-ed buckles surround them and internal bone positions,a four-sided slider splicing and core-pulling mechanism was de-signed for demolding on the lateral side of the rear mold.The back mold core was designed with multiple insert struc-tures,which facilitated the processing,prevented the air trapping,improved the molding efficiency and quality.During the mass production,the various mechanisms of the mold operated smoothly,and the quality of the plastic parts was ex-cellent,which could meet the requirements of design.
关键词
碎纸机/热流道/倒装模具/四边滑块抽芯机构/机械拉勾
Key words
needle valve type hot runner/inverted mold/four side slide core extraction mechanism/mechanical hook/shredder
维普
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