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    • 2. 发明授权
    • Indirect extrusion press
    • 间接挤压机
    • US4463589A
    • 1984-08-07
    • US374733
    • 1982-05-04
    • Akira AsariTatsuhiko NoyoriTakahisa TabuchiTsuneharu MasudaMasao MizoguchiTetsuro Takehata, deceased
    • Akira AsariTatsuhiko NoyoriTakahisa TabuchiTsuneharu MasudaMasao MizoguchiTetsuro Takehata, deceased
    • B21C23/21B21C35/04B21C33/00B21C35/06
    • B21C35/04B21C23/218
    • An indirect extrusion press including a die assembly having a loose die detachably mounted on a die stem and axially movable relative to a billet container for extruding a billet through a die hole, and a die handling mechanism for transferring the die assembly between the press center and a position outside the press machine, the indirect extrusion press including a reduced diameter portion provided in the rear end portion of the die stem and defining a stepped wall portion; a loose die detachably mounted on the end face of the reduced diameter portion; and a detachable cleaning ring loosely fitted on the reduced diameter portion of the die stem in abutting engagement with the stepped wall portion and in axially spaced relation with the loose die, the cleaning ring being in sliding engagement with the inner periphery of the billet container in the extruding phase of the press operation to remove container shells. The press may further include as part of the die handling mechanism a chuck member for releasably gripping the loose die and cleaning ring and movable for transferring the die and ring in spaced relation between the press center and a retracted position outside the press machine, and a knocking member movable into the space between the loose die and cleaning ring at the retracted position to knock off container shells from a gap between the loose die and the cleaning ring.
    • 一种间接挤压机,其包括具有可拆卸地安装在模头上的松散模具的模具组件,并且可相对于用于通过模孔将坯料挤出的坯料容器可轴向移动;以及模具处理机构,用于在冲压中心和 压榨机外部的位置,所述间接挤压机包括设置在模头的后端部分中的缩小直径部分,并且限定了台阶壁部分; 可拆卸地安装在直径减小部分的端面上的松散模具; 以及可拆卸的清洁环,其松动地装配在模柄的直径减小的部分上,与台阶壁部分抵接并与松散模具轴向间隔开,清洁环与坯料容器的内周边滑动接合 压榨操作的挤出阶段去除容器壳。 压力机还可以包括作为模具处理机构的一部分的卡盘构件,用于可释放地夹紧松散的模头和清洁环并且可移动以便在压力机中心和挤压机外部的缩回位置之间间隔开地传送模具和环,并且 敲击构件在缩回位置移动到松散模头和清洁环之间的空间中,以将容器壳从松动模具和清洁环之间的间隙分离。