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1. 发明授权

US3704973A Electro-hydraulic means for opening and closing injection molds 失效
标题翻译：电动液压装置用于打开和关闭注射模块
公开(公告)号：US3704973A
公开(公告)日：1972-12-05
申请号：US3704973D
申请日：1971-06-08
申请人： HUSKY MFG & TOOLWORKS LTD
发明人： RENFREW ROBERT MORRISON , REES PETER LEON
IPC分类号： B29C45/66 , B29C45/68 , B29F1/00
CPC分类号： B29C45/68 , B29C45/66 , B29C2045/1794
摘要： The movable platen of an injection-molding machine is rigid with a nonrotatable lead screw engaged by a rotatable drive nut which is splined to a tubular input shaft surrounding the rear end of the lead screw. A cylinder on the machine frame carries an axially movable piston which, upon a stopping of shaft rotation in the mold-closed position, is brought to bear under hydraulic pressure against the nut to clamp the mold between the platens against the tie bars anchored to the frame. The input shaft is powered by a reversible two-speed motor which is switched to lowspeed operation in a terminal phase of a lead-screw stroke to absorb excess energy in a nondissipative manner.
摘要翻译：注射成型机的可移动压板是刚性的，具有由可旋转的驱动螺母接合的不可旋转的导螺杆，该可旋转驱动螺母花键连接到围绕导螺杆的后端的管状输入轴。机架上的气缸承载着一个可轴向移动的活塞，当活塞在模具关闭位置的转动停止时，液压压在螺母上，以将模具夹在压板之间，将其固定到帧。输入轴由可逆式双速电机供电，在电动丝杠行程的终端阶段切换到低速运转，以无穷尽的方式吸收多余的能量。

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