CAJ | 학술논문

为解决长锥筒形铸件所需抽芯距离过长和脱模困难的问题,设计了带有特殊抽芯-推出机构的长锥形套筒压铸模,分析了套筒的工艺特性,详细论述了压铸模的结构设计和工作过程. 该模具采用斜销-浮动滑块机构,使抽芯的滑块不仅可沿抽芯方向移动,而且可沿推件方向浮动.先由斜销-浮动滑块机构做短距离抽芯,然后推杆沿推件方向推动滑块和型芯,将铸件推离动模.从而大大减小了所需开模行程,降低了设备成本,提高了生产效率.模具结构紧凑,工作可靠,铸件无推痕,成型铸件质量好.
위해결장추통형주건소수추심거리과장화탈모곤난적문제,설계료대유특수추심-추출궤구적장추형투통압주모,분석료투통적공예특성,상세논술료압주모적결구설계화공작과정. 해모구채용사소-부동활괴궤구,사추심적활괴불부가연추심방향이동,이차가연추건방향부동.선유사소-부동활괴궤구주단거리추심,연후추간연추건방향추동활괴화형심,장주건추리동모.종이대대감소료소수개모행정,강저료설비성본,제고료생산효솔.모구결구긴주,공작가고,주건무추흔,성형주건질량호.
In order to resolve the problems in over-long motion of loose core and difficulty to demould in gracile conical tube castings, a die casting die with a special mechanism of loose core-ejecting castings for long conical sleeve was designed. Processing characteristics of the sleeve was analyzed, and structure design and operation procedure of die casting die were described. A mechanism of angle pin and floating slider is adopted in the die, where the slider for loose core could not only move along direction of loose core, but also float along direction of ejecting casting. Firstly, the mechanism of angle pin and floating slider performs a short distance loose core, and then the ejector pins drive the slider and core along direction of ejecting casting, pushing the castings off the ejector die, which can greatly reduce the open-mould distance and decrease the equipment cost, improving product efficiency. The die exhibits compact in structure and reliable in operation. There exists no mark brought by ejecting casting, showing high product quality.