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    • 38. 发明专利
    • Injection molding machine
    • 注塑机
    • JP2008195025A
    • 2008-08-28
    • JP2007035172
    • 2007-02-15
    • Fanuc Ltdファナック株式会社
    • MARUYAMA JUNPEIUCHIYAMA TATSUHIROTAKATSUGI SATOSHI
    • B29C45/52B29C45/77
    • B29C45/76B29C45/52B29C2045/7606B29C2945/7602B29C2945/76187B29C2945/76401B29C2945/76545B29C2945/76665B29C2945/76879
    • PROBLEM TO BE SOLVED: To detect a rotational force added to a screw by a resin backflow with a good accuracy, and enable a monitoring of a resin backflow state and a closed state of a backflow valve so as to be able to evaluate easily.
      SOLUTION: After a metering is finished, a load exerted on a screw in a rotational direction is detected in a state that the screw stops in an axial direction and also in the rotational direction (a1-a5). The load is the rotational force (resistance torque component) which the screw receives from the resin pooled between flights of the screw. During the injection, the load T exerted on the screw in the rotational direction is detected (a6). The resistance torque component is subtracted from the detected load T, a backflow torque component generated by the resin flowing back through the backflow valve is asked to memorize (a7, a8). By this backflow torque component, the backflow state and the closed state of the backflow valve can be easily comprehended. It is possible to estimate the stability of the closing of the backflow valve by drawing overlapping wave shapes of the backflow torque component asked per each molding cycle.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:通过树脂回流以高精度检测添加到螺杆的旋转力,并且能够监视回流阀的树脂回流状态和关闭状态,以便能够评估 容易。 解决方案:计量结束后,在螺杆沿轴向和旋转方向(a1-a5)停止的状态下,检测螺杆沿旋转方向施加的载荷。 负载是螺杆从螺杆的间隙收集的树脂接收的旋转力(阻力矩分量)。 在注射期间,检测到旋转方向上施加在螺钉上的载荷T(a6)。 从检测到的负载T中减去电阻转矩分量,要求通过回流阀回流的树脂产生的回流转矩分量记忆(a7,a8)。 通过该回流扭矩分量,可以容易地理解回流阀的回流状态和关闭状态。 可以通过绘制每个成型周期所要求的回流扭矩部件的重叠波形来估计回流阀关闭的稳定性。 版权所有(C)2008,JPO&INPIT
    • 40. 发明专利
    • Method of indicating open/close state of check valve of injection molding machine
    • 指示注塑机检查阀开/关状态的方法
    • JP2008195015A
    • 2008-08-28
    • JP2007034886
    • 2007-02-15
    • Fanuc Ltdファナック株式会社
    • UCHIYAMA TATSUHIROTAKATSUGI SATOSHISAITO OSAMUMARUYAMA JUNPEI
    • B29C45/52B29C45/76
    • B29C45/52B29C45/76B29C2045/7606B29C2945/7602B29C2945/76187B29C2945/76401B29C2945/76545B29C2945/76665B29C2945/76879
    • PROBLEM TO BE SOLVED: To simply and accurately indicate open/close state of a check valve of an injection molding machine.
      SOLUTION: The method detects screw rotational force during injection and displays in waveform on the screen of a display device changes in detected rotational force. An open/close state of the check valve can be indicated based on the waveform pattern displayed on the display screen. The screw rotational force waveform pattern changes when the check valve closes. As shown in Fig.3(a), the rotational force peaks, when the check valves closes after injection. The pattern shown in Fig.3(b) appears, when the check valve has been closed at the beginning of injection. The pattern shown in Fig.3(c) appears, when the check valve is not closed. From the fact that the screw rotational force waveform pattern changes when check valve closes, the open/close state of the check valve can be indicated from the displayed waveform. The open/close state of the check valve is simply indicated.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:简单而准确地指示注射成型机的止回阀的打开/关闭状态。

      解决方案:该方法检测注射期间的螺杆旋转力,并以显示装置的屏幕上的波形显示检测到的旋转力的变化。 可以根据显示屏幕上显示的波形图案来指示止回阀的打开/关闭状态。 当止回阀关闭时,螺杆旋转力波形图形发生变化。 如图3(a)所示,注射后止回阀关闭时,旋转力达到峰值。 当注射开始时止回阀已经关闭,出现图3(b)所示的模式。 当止回阀未关闭时,出现图3(c)所示的模式。 从止回阀关闭时螺杆旋转力波形图形变化的事实可以从显示的波形中指示止回阀的打开/关闭状态。 单向阀的打开/关闭状态是简单的。 版权所有(C)2008,JPO&INPIT