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    Load determining device for an electrically-operated injection moliding machine
    2.
    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

    发明人： Uchiyama, Tatsuhiro ,  Kobayashi, Minoru

    IPC分类号： B29C45/76 ,  H02P21/00

    CPC分类号： B29C45/7626 ,  B29C45/76 ,  B29C2945/7602 ,  B29C2945/76033 ,  B29C2945/76525 ,  B29C2945/76568 ,  B29C2945/76595 ,  B29C2945/76939

    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。

    Ejector controller for injection molding machine
    3.
    发明公开
    Ejector controller for injection molding machine 有权
    AuswerfersteuerungfürSpritzgussmaschine

    公开(公告)号：EP1072386A3

    公开(公告)日：2001-07-18

    申请号：EP00306442.5

    申请日：2000-07-28

    申请人： Fanuc Ltd

    发明人： Kamiguchi, Masao ,  Uchiyama, Tatsuhiro ,  Kobayashi, Minoru ,  Ueno, Masayuki

    IPC分类号： B29C45/76 ,  G05B19/4062 ,  B29C45/84

    CPC分类号： B29C45/7626 ,  B29C2045/764 ,  B29C2945/76013 ,  B29C2945/76247 ,  B29C2945/76418 ,  B29C2945/76725 ,  B29C2945/76943

    摘要： A disturbance estimating observer is provided, which estimates a load applied to a servomotor for driving an ejector axis. When an ejector operates, the disturbance load torque estimated by the observer is sampled for each specific period (0 to j), and the data DA (0, 0) to DA (i, j) of (i+1) ejector processes are stored in a table TA in the form of cyclic storage. From this table TA, average values DB (0) to DB (j) of estimated disturbance load torques are determined in turn and they are stored in a table TB. From these average values, upper limit values DC (0) to DC (j) and lower limit values DD (0) to DD (j) of a permissible range are stored in tables TC, TD. When the determined estimated disturbance load torque has exceeded the permissible range, an abnormal load signal is outputted.

    摘要翻译： 提供了一种扰动估计观察器，其估计施加到用于驱动喷射器轴线的伺服电动机的负载。 当喷射器运行时，对于每个特定周期（0到j）对观察者估计的扰动负载扭矩进行采样，并且（i + 1）喷射器处理的数据DA（0,0）至DA（i，j） 以循环存储的形式存储在表TA中。 从该表TA中，依次确定估计的扰动负载转矩的平均值DB（0）至DB（j），并将它们存储在表TB中。 从这些平均值，表TC，TD中存储上限值DC（0）〜DC（j）和下限值DD（0）〜DD（j）。 当确定的估计的扰动负载转矩超过允许范围时，输出异常负载信号。

    Ejector controller for injection molding machine
    6.
    发明公开
    Ejector controller for injection molding machine 有权
    注塑机顶出控制器

    公开(公告)号：EP1072386A2

    公开(公告)日：2001-01-31

    申请号：EP00306442.5

    申请日：2000-07-28

    申请人： Fanuc Ltd

    发明人： Kamiguchi, Masao ,  Uchiyama, Tatsuhiro ,  Kobayashi, Minoru ,  Ueno, Masayuki

    IPC分类号： B29C45/76 ,  G05B19/4062

    CPC分类号： B29C45/7626 ,  B29C2045/764 ,  B29C2945/76013 ,  B29C2945/76247 ,  B29C2945/76418 ,  B29C2945/76725 ,  B29C2945/76943

    摘要： A disturbance estimating observer is provided, which estimates a load applied to a servomotor for driving an ejector axis. When an ejector operates, the disturbance load torque estimated by the observer is sampled for each specific period (0 to j), and the data DA (0, 0) to DA (i, j) of (i+1) ejector processes are stored in a table TA in the form of cyclic storage. From this table TA, average values DB (0) to DB (j) of estimated disturbance load torques are determined in turn and they are stored in a table TB. From these average values, upper limit values DC (0) to DC (j) and lower limit values DD (0) to DD (j) of a permissible range are stored in tables TC, TD. When the determined estimated disturbance load torque has exceeded the permissible range, an abnormal load signal is outputted.

    摘要翻译： 提供干扰估计观测器，其估计施加到用于驱动顶出轴的伺服电动机的负载。 在喷射器动作的情况下，针对每个特定期间（0〜j）对观察者估计出的干扰负载转矩进行采样，并且（i + 1）个喷射器处理的数据DA（0,0）〜DA（i，j）为 以循环存储的形式存储在表TA中。 从该表格TA中，依次确定估计干扰负载转矩的平均值DB（0）至DB（j），并将它们存储在表格TB中。 根据这些平均值，在表格TC，TD中存储允许范围的上限值DC（0）至DC（j）和下限值DD（0）至DD（j）。 当确定的推定干扰负载转矩超过允许范围时，输出异常负载信号。

    Controller of injection molding Machine
    7.
    发明公开
    Controller of injection molding Machine 有权
    注塑机控制器

    公开(公告)号：EP1607207A1

    公开(公告)日：2005-12-21

    申请号：EP05253640.6

    申请日：2005-06-13

    申请人： FANUC LTD

    发明人： Uchiyama, Tatsuhiro ,  Kobayashi, Minoru

    IPC分类号： B29C45/77

    CPC分类号： B29C45/77 ,  B29C2945/76006 ,  B29C2945/76066 ,  B29C2945/76187 ,  B29C2945/76257 ,  B29C2945/76498 ,  B29C2945/76551 ,  B29C2945/76595 ,  B29C2945/76665 ,  B29C2945/76765 ,  B29C2945/76859 ,  B29C2945/76882 ,  B29C2945/76939

    摘要： A controller of injection molding machine capable of stabilizing a peak pressure of resin appearing when an injection process is switched to a pressure-holding process, by reducing the variation of the peak pressure. Resin pressure Pr is detected at every predetermined sampling period Δt. There is a time lag between the time at which the resin pressure reaches an injection/pressure-holding switch determining resin pressure P(v-p) and the sampling time t2 at which the resin pressure that has reached the value P(v-P) is detected. Hence, a difference Ve between the detected resin pressure value Pr' and the switch determining resin pressure P(v-p) is obtained. The transition time period T in which pressure should be changed from a pressure-holding start pressure Ps to a pressure-holding pressure Pp is corrected by T = T0-α×Ve to make the transition time period T shorter when the difference Ve is greater, to thereby hold down the peak pressure Pmax. By this, the variation ΔPmax of the peak pressure Pmax is reduced. Since the pressure is kept uniform, the quality of a molded produce improves.

    摘要翻译： 本发明提供一种注射成型机的控制装置，该注射成型机的控制装置能够通过降低峰值压力的变化来将注射过程切换为保压过程时出现的树脂的峰值压力稳定化。 在每个预定采样周期Δt处检测树脂压力Pr。 在树脂压力达到注射/压力保持开关确定树脂压力P（v-p）的时间与检测到达到值P（v-P）的树脂压力的采样时间t2之间存在时间滞后。 因此，获得检测到的树脂压力值Pr'与开关确定树脂压力P（v-p）之间的差值Ve。 当压力应该从压力保持开始压力Ps变化到压力保持压力Pp时，过渡时间周期T通过T = T0-α×Ve进行校正，以使得当差值Ve大时较短的过渡时间周期T 从而抑制峰值压力Pmax。 由此，峰值压力Pmax的变化量ΔPmax减小。 由于压力保持均匀，所以模制产品的质量得到改善。