Injection molding machine
    42.
    发明公开
    Injection molding machine 有权
    注塑机

    公开(公告)号:EP1935608A2

    公开(公告)日:2008-06-25

    申请号:EP07119481.5

    申请日:2007-10-29

    申请人: FANUC LTD

    IPC分类号: B29C45/52 B29C45/76

    摘要: If a screw (1) is moved forward after a metering step is completed, the screw (1) moves in a state where a check ring (3) on a tip end (2) of the screw (1) 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 (3) 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 (3). 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 (3) 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: 在计量步骤完成后,如果螺钉(1)向前移动,则螺钉(1)在螺钉(1)的末端(2)上的止回环(3)处于打开状态的状态下移动。 树脂以与注射方向相反的方向流动。 由于树脂的回流,旋转力被施加到螺钉。 如果止回环(3)关闭树脂通道,则作用在螺钉上的旋转力减小。 检测螺纹旋转力的峰值时间作为止回环(3)的闭合时间点。 检测该时刻的物理量,例如螺杆旋转力和螺杆位置。 由于精确地检测到止回阀(3)的关闭时间点,所以可以更精确地调整喷射/保持压力切换位置和喷射速度切换位置的校正。 基于检测到的物理量可以精确地确定模制品是无缺陷还是有缺陷的。

    Controller of injection molding machine
    44.
    发明公开
    Controller of injection molding machine 有权
    SteuerungfüreineSpritzgießmaschine

    公开(公告)号:EP1825987A1

    公开(公告)日:2007-08-29

    申请号:EP07250720.5

    申请日:2007-02-21

    申请人: FANUC LTD

    IPC分类号: B29C45/50 B29C45/54 B29C45/76

    摘要: A controller for an injection molding machine capable of reducing an extension of a cycle time in a screw retreat process after the end of measurement, obtaining a more accurate and uniform measured resin amount, and determining measurement conditions in a short period of time. After the measurement is finished, the screw is stopped from rotating and retreated at a first speed V1. The screw is reversely rotated at a predetermined speed Rv in a set zone. As this is done, the screw is retreated at a second speed V2 lower than the first speed V1. After the reverse rotation zone is terminated, the screw is stopped from rotating and retreated at a third speed V3 to a set retreat stop position. By doing this, the cycle time can be made shorter than in the case where the retreat and reverse rotation of the screw are performed separately. Since the retreating speed of the screw is low while the screw is being reversely rotated, a sudden pressure change can be suppressed, so that precise measurement can be made. Since conditions for the reverse rotation and retreat of the screw can be regulated independently, they can be adjusted to optimum conditions in a short period of time.

    摘要翻译: 一种用于注射成型机的控制器,其能够在测量结束后减少螺杆后退过程中的循环时间的延长,获得更精确和均匀的测量树脂量,并在短时间内确定测量条件。 测量结束后,以第一速度V1停止螺丝旋转和退回。 螺钉以设定区域中的预定速度Rv反向旋转。 这样做,螺杆以比第一速度V1低的第二速度V2退回。 在反向旋转区域终止之后,螺丝停止旋转并以第三速度V3退回到设定的撤退停止位置。 通过这样做,循环时间可以比分开执行螺杆的后退和反向旋转的情况更短。 由于当螺杆反向旋转时螺杆的后退速度较低,因此可以抑制突然的压力变化,从而能够进行精确的测量。 由于能够独立地调节螺杆的反向旋转和退避的条件,因此可以在短时间内将其调节到最佳状态。

    Pressure abnormality detecting device for injection molding machine
    45.
    发明公开
    Pressure abnormality detecting device for injection molding machine 有权
    Vorrichtung zur Feststellung einer Druckabweichungfüreine Spritzgiessmaschine

    公开(公告)号:EP1695809A2

    公开(公告)日:2006-08-30

    申请号:EP06250769.4

    申请日:2006-02-14

    申请人: FANUC LTD

    IPC分类号: B29C45/77 B29C45/50

    摘要: An injection screw position Xa, injection speed Va, and injection pressure Pa are read. A deceleration distance D the injection screw moves from the point where the injection operation has been stopped at the current moment to be decelerated by_maximum deceleration till the point where the injection speed is reduced to zero is determined from a corrected deceleration in which the amount of correction α is added to a predetermined deceleration A inherent in the machine and the read injection speed Va. The determined deceleration distance D is multiplied by the amount of change in injection pressure with respect to the amount of change in the injection screw position to determine a predicted increment in pressure (D·ΔP/ΔX). The predicted increment in pressure is added to the current injection pressure Pa to determine an injection pressure Pa* predicted when the screw is suddenly decelerated at the current moment. If the predicted injection pressure Pa* exceeds the predetermined limit pressure Pmax, the injection operation is stopped to decelerate the screw.

    摘要翻译: 读取注射螺钉位置Xa,注射速度Va和注射压力Pa。 喷射螺杆从当前时刻停止喷射操作的点移动到减速时的减速距离D减去直到喷射速度降低到零的点为止的最大减速度从校正减速度确定,其中校正量 将±加到机器固有的预定减速度A和读取喷射速度Va中,将确定的减速距离D乘以喷射压力相对于喷射螺杆位置的变化量的变化量,以确定预测的 压力增加(D·“P /”X)。 将预测的压力增量加到当前的注射压力Pa上,以确定螺杆在当前瞬间减速时预测的注射压力Pa *。 如果预测的喷射压力Pa *超过预定极限压力Pmax,则停止喷射操作以使螺杆减速。

    Injection molding machine metering method and control device
    46.
    发明公开
    Injection molding machine metering method and control device 有权
    Dosierungsverfahrenfüreine Spritzgiessmaschine und Steuerung

    公开(公告)号:EP1418038A3

    公开(公告)日:2006-05-03

    申请号:EP03256968.3

    申请日:2003-11-04

    申请人: FANUC LTD

    IPC分类号: B29C45/76 B29C45/77

    摘要: The retraction of an injection screw is controlled on the basis of the pressure deviation between a set resin pressure and the detected resin pressure (T1-T4). Furthermore, the screw is caused to rotate at a set speed. Moreover, when the deviation between a metering completion position and the current screw retraction position drops to a value that is equal to or less than a set value, control of the retraction of the screw based on the pressure deviation is stopped (T5, T6), and the control is switched to positioning control based on the positional deviation (T7). Furthermore, a screw rotational speed command in which the pressure deviation component between the set resin pressure and the current resin pressure is corrected from the screw rotational speed component that is decelerated in proportion to the positional deviation is determined and output (T8-T13).

    摘要翻译: 基于设定的树脂压力和检测到的树脂压力(T1-T4)之间的压力偏差来控制注射螺杆的缩回。 此外,使螺杆以设定的速度旋转。 此外,当计量完成位置和当前螺杆回缩位置之间的偏差下降到等于或小于设定值的值时,停止基于压力偏差的螺杆回缩的控制(T5,T6) ,并且基于位置偏差(T7)将控制切换到定位控制。 此外,确定并输出从设定树脂压力和当前树脂压力之间的压力偏差分量与从位置偏差成比例减速的螺杆转速分量校正的螺杆转速指令(T8-T13)。

    Load determining device for an electrically-operated injection moliding machine
    47.
    发明公开
    Load determining device for an electrically-operated injection moliding machine 有权
    Vorrichtung zur Lastmessungfüreine elektrische Spritzgiessmaschine

    公开(公告)号:EP1563982A1

    公开(公告)日:2005-08-17

    申请号:EP05250770.4

    申请日:2005-02-10

    申请人: FANUC LTD

    IPC分类号: B29C45/76 H02P21/00

    摘要: A load determining device for an electrically-operated injection molding machine is provided, in which a load exerted on a movable part such as a molded product ejector (6) is detected based on the current of the ejector motor (M) or by an observer, whilst removing the influence of motor temperature. Upon start of continuous molding, a maximum load detected during retreat motion of the ejector (6) or other movable part is stored as a reference value Lr0. In every molding cycle, a maximum detected load Lra during the retraction of the ej ector (6) is determined. In the next molding cycle, load La detected during advance of the ejector (6) is corrected based on the reference value Lr0 and the maximum detected load Lra to eliminate the influence of motor temperature rise, thereby determining the load Lfx(n) during the advance of the ejector (6). When there occurs a change in temperature of the ejector driving motor (M), the load detected based on the motor current or by the observer varies even if the actual ejector load is constant. By eliminating the influence of temperature change, the load can accurately be detected.

    摘要翻译: 提供一种用于电动注射成型机的负载确定装置,其中基于喷射器电动机(M)的电流或观察者检测施加在诸如模制产品喷射器(6)的可移动部件上的负载 ,同时消除电机温度的影响。 在连续模制开始时,将喷射器(6)或其他可动部件的后退运动期间检测到的最大载荷作为基准值Lr0存储。 在每个成型周期中,确定在退火过程中最大检测到的负荷Lra(6)。 在下一个成型周期中,基于参考值Lr0和最大检测负载Lra来校正在喷射器(6)的提前期间检测到的载荷La,以消除电动机温度上升的影响,从而确定在该期间的负载Lfx(n) 喷射器(6)的前进。 当喷射器驱动马达(M)的温度发生变化时,即使实际的喷射器负载恒定,基于马达电流或由观察者检测到的载荷也会变化。 通过消除温度变化的影响,可以准确检测负载。

    Mold condition detecting device and method for injection molding machine
    49.
    发明公开
    Mold condition detecting device and method for injection molding machine 审中-公开
    注塑机模具状态检测装置及方法

    公开(公告)号:EP1175989A3

    公开(公告)日:2002-04-17

    申请号:EP01306404.3

    申请日:2001-07-26

    申请人: Fanuc Ltd

    IPC分类号: B29C45/76 B29C45/84

    摘要: The invention provides a device and a method for detecting condition of molds (m1, m2) attached to an injection molding machine with low cost and high reliability. A load exerted on a product ejecting mechanism (7) or a mold opening/closing mechanism (4, 5, m1, 6) is preferably estimated by a disturbance torque estimating observer. An index value (for example a maximum value or average value) of the load is obtained and stored preferably in each molding cycle of the injection molding machine. Obtained values of the index are suitably displayed as a graph on a display device to indicate variation of the load in time series and thus allow an operator to monitor the condition of the molds.

    摘要翻译: 本发明提供了一种用于以低成本和高可靠性检测安装在注射成型机上的模具(m1,m2)的状态的装置和方法。 施加在产品推出机构(7)或模具开闭机构(4,5,m1,6)上的负荷优选通过干扰转矩推定观测器来推定。 优选在注塑机的每个模塑周期中获得并存储负荷的指标值(例如最大值或平均值)。 所获得的指数值在显示装置上适当地显示为曲线图,以指示时间序列中的负载的变化,从而允许操作员监视模具的状况。