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    • 5. 发明授权
    • Apparatus to actuate injection element
    • 用于致动注射元件的装置
    • US06413465B1
    • 2002-07-02
    • US09291398
    • 1999-04-14
    • Reinhard GruberHarald BleierMartin Ganz
    • Reinhard GruberHarald BleierMartin Ganz
    • B29C4502
    • B29C45/5008B29C45/531B29C2045/502
    • An apparatus to actuate an injection element (1) for injecting a defined quantity of plasticized plastic or the like into an injection molding tool. The injection element (1) is designed as a piston or as a screw and is guided in a guide (2) and moved by an actuation element. The actuation element (3) has a tappet (4), which is guided on a crank plate (5), the crank plate (5) being turned with positional accuracy by a controlled or regulated servomotor (6). The invention provides that, for the return stroke of the injection element (1), a second tappet (7) is present, which is actuated by a second crank plate (8).
    • 一种用于致动注射元件(1)的装置,用于将限定量的塑化塑料等注入到注塑模具中。 注射元件(1)被设计为活塞或螺钉,并且在引导件(2)中引导并被致动元件移动。 致动元件(3)具有在曲柄板(5)上引导的挺杆(4),曲柄板(5)通过受控或调节的伺服电动机(6)以位置精度转动。 本发明提供的是,对于注射元件(1)的返回行程,存在由第二曲柄板(8)致动的第二挺杆(7)。
    • 6. 发明授权
    • Crank driven injection apparatus for injection molding machine
    • 用于注射成型机的起重机驱动注射装置
    • US5158783A
    • 1992-10-27
    • US720755
    • 1991-07-02
    • Yoshiharu InabaKoichi Nishimura
    • Yoshiharu InabaKoichi Nishimura
    • B29C45/46B29C45/50
    • B29C45/5008B29C2045/502
    • A low cost crank operated injection apparatus is capable of driving an injection screw with a desired driving force without the need of employing a high output type electric motor. The injection apparatus includes a crank mechanism for converting forward and reverse rotation of a driving shaft into reciprocating motion of an injection screw mounted on a pusher plate. The driving shaft is coupled through a reduction gearing unit to the power output shaft of a servomotor controlled by a numerical control device, and the apparatus operates, during the injection process, so as to cause the injection screw to move forwardly with a great driving force. The servomotor is rotated in such a manner that the driving shaft is driven forwardly within a predetermined rotary angular region corresponding to an operational region which does not include the dead center positions of the crank mechanism, whereby rapid changes in the injection speed and in the rate of change of injection pressure are eliminated during the operating cycle.
    • PCT No.PCT / JP90 / 01408 Sec。 371日期:1991年7月2日 102(e)日期1991年7月2日PCT 1990年11月1日PCT PCT。 出版物WO91 / 06414 日期:1991年5月16日。低成本曲柄式注射装置能够驱动具有期望驱动力的注射螺杆,而不需要使用高输出型电动机。 注射装置包括用于将驱动轴的正向和反向旋转转换成安装在推动板上的注射螺杆的往复运动的曲柄机构。 驱动轴通过减速装置联接到由数控装置控制的伺服电动机的动力输出轴上,并且该装置在喷射过程中操作以使喷射螺杆以大的驱动力向前移动 。 伺服电动机以这样的方式旋转,使得驱动轴在对应于不包括曲柄机构的死点位置的操作区域的预定旋转角度区域内向前驱动,由此喷射速度和速率的快速变化 在操作周期中消除了喷射压力的变化。