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    INJECTION MOLDING MACHINE
    1.
    发明申请
    INJECTION MOLDING MACHINE 有权
    注塑机

    公开(公告)号：US20080305202A1

    公开(公告)日：2008-12-11

    申请号：US11937708

    申请日：2007-11-09

    申请人： Akira OOMORI ,  Junpei MARUYAMA ,  Satoshi TAKATSUGI ,  Wataru SHIRAISHI

    发明人： Akira OOMORI ,  Junpei MARUYAMA ,  Satoshi TAKATSUGI ,  Wataru SHIRAISHI

    IPC分类号： B29C45/76 ,  B29C45/50

    CPC分类号： B29C45/76 ,  B29C45/52 ,  B29C2045/7606 ,  B29C2945/76013 ,  B29C2945/76096 ,  B29C2945/76187 ,  B29C2945/76381 ,  B29C2945/76652

    摘要： An injection molding machine estimates a check valve wear amount, making it possible to predict a check valve use limit. At start of injection, the check valve is at a position advanced a stroke S0 with respect to a screw position (a position of a check seat that contacts the check valve and closes a resin flow channel). As the screw advances, the check valve retreats and closes when the screw moves a distance X0. When the check valve is worn ΔS (S1=S0+ΔS), it closes when the screw moves X1. Since the check valve stroke and the distance the screw moves until the check valve closes are proportional, S0/X0=S1/X1=a. Therefore, ΔS=aX1−S0, and the wear amount ΔS can be obtained by detecting the check valve closing position X1 and using this position X1 and the known stroke S0. The closing position is detected from the peak value of rotational force acting on the screw. Once the wear amount is obtained, the check valve use limit can be predicted from an allowable value of wear.

    摘要翻译： 注射成型机估计止回阀磨损量，使得可以预测止回阀的使用限度。 在注射开始时，止回阀位于相对于螺钉位置（与止回阀接触的止回阀的位置并且封闭树脂流动通道）的行程S0上升的位置。 随着螺丝的进行，当螺丝移动一段距离X0时，止回阀就退回并关闭。 当止回阀磨损DeltaS（S1 = S0 + DeltaS）时，螺钉移动X1时关闭。 由于止回阀行程和螺杆移动直到止回阀关闭的距离成正比，所以S0 / X0 = S1 / X1 = a。 因此，DeltaS = aX1-S0，并且可以通过检测止回阀关闭位置X1并使用该位置X1和已知行程S0来获得磨损量DeltaS。 根据作用在螺杆上的旋转力的峰值来检测关闭位置。 一旦得到磨损量，可以从允许的磨损值预测止回阀的使用极限。

    INJECTION MOLDING MACHINE WHICH CARRIES OUT CONTROLLING OF CLOSING OPERATION OF A CHECK RING
    2.
    发明申请
    INJECTION MOLDING MACHINE WHICH CARRIES OUT CONTROLLING OF CLOSING OPERATION OF A CHECK RING 有权
    注射成型机，用于检查检查环的关闭操作的控制

    公开(公告)号：US20090022839A1

    公开(公告)日：2009-01-22

    申请号：US11956416

    申请日：2007-12-14

    申请人： Junpei MARUYAMA ,  Satoshi TAKATSUGI

    发明人： Junpei MARUYAMA ,  Satoshi TAKATSUGI

    IPC分类号： B29C45/77

    CPC分类号： B29C45/52 ,  B29C45/768 ,  B29C45/77 ,  B29C2045/7606 ,  B29C2945/7601 ,  B29C2945/76187 ,  B29C2945/76287 ,  B29C2945/76401 ,  B29C2945/76568 ,  B29C2945/76665 ,  B29C2945/76859

    摘要： While a check ring of a screw of an injection molding machine is in open state, an absolute value (|Δ resin pressure / Δ rotation amount |) of a variation of a resin pressure per unit variation of the screw reverse rotation becomes greater than a predetermined reference value. However, after the check ring is closed, |Δ resin pressure / Δ rotation amount | becomes equal to or less than the reference value. From this, detecting if the |Δ resin pressure / Δ rotation amount | during reverse rotation of the screw, it is possible to determine that the check ring is closed or not. As a result, it is possible to obtain a screw reverse rotation amount which is optimal for reliably closing the check ring.

    摘要翻译： 当注射成型机的螺钉的止回环处于打开状态时，螺杆反向旋转的每单位变化的树脂压力的变化的绝对值（|Δ树脂压力/ Delta旋转量|）变得大于 预定参考值。 但是，检查环闭合后，|三角树脂压力/三角形旋转量| 变得等于或小于参考值。 由此，检测|树脂压力/三角形旋转量| 在螺钉的反向旋转期间，可以确定止回环关闭。 结果，可以获得最佳的可靠闭合止回环的螺杆反向旋转量。

    INJECTION MOLDING MACHINE AND METHOD FOR DETERMINING CLOSURE OF CHECK RING
    3.
    发明申请
    INJECTION MOLDING MACHINE AND METHOD FOR DETERMINING CLOSURE OF CHECK RING 有权
    注射成型机及其检测方法

    公开(公告)号：US20080305199A1

    公开(公告)日：2008-12-11

    申请号：US12117839

    申请日：2008-05-09

    申请人： Junpei MARUYAMA ,  Satoshi TAKATSUGI

    发明人： Junpei MARUYAMA ,  Satoshi TAKATSUGI

    IPC分类号： B29C45/76

    CPC分类号： B29C45/52 ,  B29C45/768 ,  B29C45/77 ,  B29C2945/76006 ,  B29C2945/7602 ,  B29C2945/7618 ,  B29C2945/76187 ,  B29C2945/76381 ,  B29C2945/76575 ,  B29C2945/76698 ,  B29C2945/76859 ,  B29C2945/76996

    摘要： Torques and resin pressures applied to a screw are detected during the forward movement of the screw and coefficients of correlation between the detected torques and resin pressures are calculated. When the check ring is open, the flight of the screw receives resin pressure, and the screw torque increases proportionally to the resin pressure due to resin backflow, so the coefficients of correlation between the screw torques and the resin pressures are higher than a reference value. When the check ring closes, the flight of the screw no longer receive resin pressure, so the screw torque decreases and the coefficients of correlation become lower than the reference value. The check ring is determined to be closed when the coefficients of correlation become lower than the reference value.

    摘要翻译： 在螺杆的向前运动期间检测施加到螺杆上的扭矩和树脂压力，并且计算检测到的扭矩和树脂压力之间的相关系数。 当止回环打开时，螺杆的螺纹受到树脂压力，螺杆扭矩由于树脂回流而与树脂压力成比例地增加，因此螺杆转矩和树脂压力之间的相关系数高于参考值 。 当止回环关闭时，螺杆的螺旋不再受到树脂压力，因此螺杆扭矩减小，相关系数低于参考值。 当相关系数低于参考值时，确定环被确定为闭合。

    INJECTION MOLDING MACHINE, AND METHOD FOR ADJUSTING A REVERSE ROTATION AMOUNT OF A REVERSE ROTATION PROCESS IN AN INJECTION MOLDING MACHINE
    5.
    发明申请
    INJECTION MOLDING MACHINE, AND METHOD FOR ADJUSTING A REVERSE ROTATION AMOUNT OF A REVERSE ROTATION PROCESS IN AN INJECTION MOLDING MACHINE 有权
    注射成型机，以及调整注射成型机中逆向旋转工艺的反转量的方法

    公开(公告)号：US20090026646A1

    公开(公告)日：2009-01-29

    申请号：US11963975

    申请日：2007-12-24

    申请人： Junpei MARUYAMA ,  Satoshi TAKATSUGI ,  Tatsuhiro UCHIYAMA

    发明人： Junpei MARUYAMA ,  Satoshi TAKATSUGI ,  Tatsuhiro UCHIYAMA

    IPC分类号： B29C45/38

    CPC分类号： B29C45/52 ,  B29C45/76 ,  B29C2945/76006 ,  B29C2945/7602 ,  B29C2945/76033 ,  B29C2945/76083 ,  B29C2945/76093 ,  B29C2945/7611 ,  B29C2945/76113 ,  B29C2945/76187 ,  B29C2945/76214 ,  B29C2945/76367 ,  B29C2945/76381 ,  B29C2945/76525 ,  B29C2945/76545 ,  B29C2945/76568 ,  B29C2945/76575 ,  B29C2945/76578 ,  B29C2945/76595 ,  B29C2945/76658 ,  B29C2945/76692

    摘要： When a resin passage of a check ring is opened, resin backflow occurs during time when an injection screw is moved forward, and a reverse rotational force is applied to the screw by resin backflow. On the other hand, when the resin passage is closed, there is no resin backflow and the reverse rotational force applied to the screw is greatly reduced. Consequently, after completion of metering process and before injection process, the screw is moved forward after the screw has been rotated in reverse a predetermined amount to prevent resin backflow. At this time, a maximum value of the reverse rotational force applied to the screw is detected. Until the detected maximum reverse rotational force reaches a reference value or less, the reverse rotation amount is increased sequentially and respective molding cycles are carried out. When the detected maximum reverse rotational force reaches the reference value or less (passage closure), the reverse rotation amount at this time is set as the reverse rotation amount for the reverse rotation process. By means of this operation, an optimal reverse rotation amount can be adjusted automatically.

    摘要翻译： 当止回环的树脂通道打开时，在注射螺杆向前移动的时间期间发生树脂回流，并且通过树脂回流对螺钉施加反向旋转力。 另一方面，当树脂通道关闭时，不存在树脂回流，并且施加到螺杆的反向旋转力大大降低。 因此，在计量过程完成和喷射过程之前，在螺杆已经旋转了预定量之后螺杆向前移动以防止树脂回流。 此时，检测施加到螺钉的反向旋转力的最大值。 在检测到的最大反向旋转力达到基准值以下之前，反向旋转量依次增加，并且进行相应的成型周期。 当检测到的最大反转旋转力达到基准值以下（通过关闭）时，此时的反转量被设定为反转处理的反转量。 通过该操作，可以自动调整最佳的反转量。

    INJECTION MOLDING MACHINE
    6.
    发明申请
    INJECTION MOLDING MACHINE 有权
    注塑机

    公开(公告)号：US20080152748A1

    公开(公告)日：2008-06-26

    申请号：US11876462

    申请日：2007-10-22

    申请人： Satoshi TAKATSUGI ,  Tatsuhiro UCHIYAMA ,  Junpei MARUYAMA

    发明人： Satoshi TAKATSUGI ,  Tatsuhiro UCHIYAMA ,  Junpei MARUYAMA

    IPC分类号： B29C45/76 ,  B29C45/77 ,  B29C45/80

    CPC分类号： B29C45/52 ,  B29C45/768 ,  B29C2945/76013 ,  B29C2945/76187 ,  B29C2945/76381

    摘要： If a screw is moved forward after a metering step is completed, the screw moves in a state where a check ring on a tip end of the screw is in open state. Resin flows in a direction opposite to the injection direction. A rotational force is applied to the screw due to the backflow of the resin. If the check ring closes a resin passage, the rotational force acting on the screw is reduced. A peak time of the screw rotational force is detected as closing point in time of the check ring. Physical amounts such as a screw rotational force and a screw position at that timing are detected. Since the closing point in time of the check ring is precisely detected, correction of the injection/hold pressure switching position and the injection speed switching position can be adjusted more precisely. It is possible to precisely determine whether a molded article is non-defective or defective based on the detected physical amount.

    摘要翻译： 如果在测量步骤完成后螺钉向前移动，则螺钉在螺钉顶端的止回环处于打开状态的状态下移动。 树脂在与喷射方向相反的方向上流动。 由于树脂的回流，旋转力被施加到螺钉上。 如果止回环关闭树脂通道，则减小作用在螺杆上的旋转力。 螺纹旋转力的高峰时间被检测为检查环的闭合点。 检测在该定时的物理量，例如螺杆旋转力和螺钉位置。 由于能够精确地检测到止回阀的闭塞点，因此能够更精确地调整喷射/保持压力切换位置的校正和喷射速度切换位置。 可以基于检测到的物理量精确地确定模制品是否是无缺陷或有缺陷的。

    INJECTION MOLDING MACHINE
    7.
    发明申请
    INJECTION MOLDING MACHINE 有权
    注塑机

    公开(公告)号：US20090022838A1

    公开(公告)日：2009-01-22

    申请号：US11953923

    申请日：2007-12-11

    申请人： Junpei MARUYAMA ,  Satoshi TAKATSUGI

    发明人： Junpei MARUYAMA ,  Satoshi TAKATSUGI

    IPC分类号： B29C45/18 ,  B29C45/03

    CPC分类号： B29C45/52 ,  B29C45/76 ,  B29C2945/7602 ,  B29C2945/76187 ,  B29C2945/76367 ,  B29C2945/76545

    摘要： When a screw equipped with a check ring is moved forward, torque acting on the screw is detected, and whether the check ring is closed is determined on the basis of the detected torque. The screw is rotated in reverse when the check ring is determined not to be closed, and the reverse rotation of the screw is stopped when the check ring is determined to be closed. The reverse rotation of the screw is thereby controlled so that the screw is rotated in reverse by an optimal amount for reliably closing the check ring.

    摘要翻译： 当装备有止回环的螺杆向前移动时，基于检测到的扭矩来确定作用在螺钉上的扭矩，并且检查环是否关闭。 当检查环被确定为不关闭时，螺钉反向旋转，并且当检查环被确定为关闭时，螺钉的反向旋转停止。 从而控制螺杆的反向旋转，使得螺杆反转旋转最佳量以可靠地闭合止回环。

    INJECTION MOLDING MACHINE
    8.
    发明申请
    INJECTION MOLDING MACHINE 有权
    注塑机

    公开(公告)号：US20080199551A1

    公开(公告)日：2008-08-21

    申请号：US11967583

    申请日：2007-12-31

    申请人： Junpei MARUYAMA ,  Tatsuhiro UCHIYAMA ,  Satoshi TAKATSUGI

    发明人： Junpei MARUYAMA ,  Tatsuhiro UCHIYAMA ,  Satoshi TAKATSUGI

    IPC分类号： B29C45/76

    CPC分类号： B29C45/76 ,  B29C45/52 ,  B29C2045/7606 ,  B29C2945/7602 ,  B29C2945/76187 ,  B29C2945/76401 ,  B29C2945/76545 ,  B29C2945/76665 ,  B29C2945/76879

    摘要： An injection molding machine capable of accurately detecting a rotational force exerted on a screw by resin backflow to easily evaluate states of resin backflow and closure of a check valve. In a state where the screw is stopped axially and rotationally after metering is finished, a load exerted on the screw in the rotational direction is detected. This load is a rotational force exerted on the screw from resin remaining between flights of the screw (resistance torque component). During injection, a load T exerted on the screw in the direction of rotation is detected, and the resistance torque component is subtracted from the detected load T to obtain a backflow torque component generated by resin flowing back through the check valve. By simultaneously displaying waveforms of backflow torque components in a plurality of molding cycles to be overlapped, stability of closure of the check valve is readily evaluated.

    摘要翻译： 一种能够通过树脂回流精确地检测施加在螺杆上的旋转力的注射成型机，以容易地评价树脂回流的状态和止回阀的关闭。 在计量结束后螺杆轴向停止旋转的状态下，检测螺杆在旋转方向上的负荷。 该负载是由螺钉上的树脂施加在螺杆上的旋转力，其保持在螺钉的间隙之间（电阻转矩分量）。 在注射期间，检测到沿旋转方向施加到螺钉上的负载T，并且从检测到的负载T中减去电阻扭矩分量，以获得通过止回阀回流的树脂产生的回流转矩分量。 通过同时显示多个成型循环中的回流扭矩分量的波形重叠，容易评估止回阀的关闭的稳定性。