Time-delay drawing protection technical apparatus for injection mold slide block thimble and inclined jacking block thimble

注塑模具滑块顶针与斜顶块顶针延时抽保护技术装置

Abstract

本发明公开了一种注塑模具滑块顶针与斜顶块顶针延时抽保护技术装置包括顶针(1)、弹簧(2)、延时直面(3)、复位斜面(4)、挡块(5),本发明采用顶针、弹簧、直面、斜面构成的横向延时抽动的脱模技术方案,在塑件横向机构抽出运动中,利用顶针抵住塑件,迫使塑件与滑块或斜顶块松动的延时作用,保证制品在横向抽脱模过程中不被破坏。本发明克服了现有技术采用油缸等二次横向抽出机构,增加塑件制品的出模斜度以及排气出模等方案存在的模具结构复杂,成本增加,而实际脱模效果也未必理想等问题。达到了机构简单可靠,成本低廉,脱模效果理想,并适用于一般横向脱模困难注塑模具应用的目的,同时,本发明对于注塑模具脱模的技术进步,具有普适的意义。
The invention discloses a technical device for protecting delayed pulling of a slider push rod and an ejector cam insert push rod of an injection mold. The device comprises a push rod (1), a spring (2), a delayed straight plane (3), a reset inclined plane (4) and a check block (5). The device adopts demoulding technical proposal of transverse delayed pulling consisting of the push rod, the spring, the straight plane and the inclined plane; in the pulling movements of a transverse mechanism of an injection molded part, the push rod is used to support the injection molded part to force the injection molded part and a slider or an ejector cam insert to loose and delay, so as to guarantee products are not damaged in the transverse demoulding process. The device solves the problems that the mould has a complicated structure and high cost, and actual demoulding effect is not ideal, etc. because the prior art adopts the technical proposals that a secondary transverse pulling mechanism such as an oil cylinder is adopted, demoulding inclination of the injection molded part is increased and demoulding is carried out through exhaust, etc. The device achieves the aims of simple and reliable mechanism, low cost, ideal demoulding effect and suitability for applying injection molds with difficult demoulding; meanwhile, the device has universal meaning for technical progress of injection mold demoulding.

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Cited By (10)

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    CN-101774239-BJune 05, 2013宁海县现代模具有限公司Ejector sleeve ejecting structure in plastic mould slide block
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    CN-101954714-AJanuary 26, 2011凡嘉科技(无锡)有限公司多加强筋器件的注塑模的行位设计顶出机构
    CN-101961900-AFebruary 02, 2011凡嘉科技(无锡)有限公司一种改进的前模斜顶结构
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    CN-101973093-AFebruary 16, 2011凡嘉科技(无锡)有限公司倒l型件加工用模具的斜顶结构
    CN-102029668-AApril 27, 2011凡嘉科技(无锡)有限公司Rear die inclined elastic structure of die for machining inverted L-shaped workpiece
    CN-102328405-AJanuary 25, 2012北京英特塑料机械总厂Mechanism for preventing 'vacuumizing' in ejection process in injection mould
    CN-103770281-AMay 07, 2014汉达精密电子(昆山)有限公司Female mold anti-sticking mechanism
    CN-103978645-AAugust 13, 2014宁波跃飞模具有限公司一种注塑模具滑块辅助脱模机构防磨损装置