Pressure abnormality detecting device for injection molding machine
    1.
    发明申请
    Pressure abnormality detecting device for injection molding machine 有权
    注塑机压力异常检测装置

    公开(公告)号:US20060191347A1

    公开(公告)日:2006-08-31

    申请号:US11359601

    申请日:2006-02-23

    IPC分类号: G01L7/00

    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: 读取注射螺杆位置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最大减速度减速直到喷射速度降低至零的点为止的减速距离D由修正后的减速度确定, 校正α被添加到机器固有的预定减速度A和读取喷射速度Va中,所确定的减速距离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 预测压力增量(D.DeltaP / DeltaX)。 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。

    Pressure abnormality detecting device for injection molding machine
    2.
    发明授权
    Pressure abnormality detecting device for injection molding machine 有权
    注塑机压力异常检测装置

    公开(公告)号:US07313967B2

    公开(公告)日:2008-01-01

    申请号:US11359601

    申请日:2006-02-23

    IPC分类号: G01L7/08

    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: 读取注射螺杆位置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最大减速度减速直到喷射速度降低至零的点为止的减速距离D由修正后的减速度确定, 校正α被添加到机器固有的预定减速度A和读取喷射速度Va中,所确定的减速距离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 预测压力增量(D.DeltaP / DeltaX)。 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 and control device
    4.
    发明授权
    Injection molding machine metering and control device 有权
    注塑机计量和控制装置

    公开(公告)号:US07021917B2

    公开(公告)日:2006-04-04

    申请号:US10698406

    申请日:2003-11-03

    IPC分类号: B29C45/77

    摘要: The retraction of the screw is controlled on the basis of the pressure deviation between the set resin pressure and the detected resin pressure. Furthermore, the screw is caused to rotate at a set speed. Moreover, when the deviation between the 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, and the control is switched to positioning control based on the positional deviation. 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.

    摘要翻译: 基于设定的树脂压力和检测到的树脂压力之间的压力偏差来控制螺杆的缩回。 此外,使螺杆以设定的速度旋转。 此外,当计量完成位置与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,并且控制是 基于位置偏差切换到定位控制。 此外,确定并输出其中设定树脂压力和当前树脂压力之间的压力偏差分量从与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。

    INJECTION MOLDING MACHINE
    5.
    发明申请
    INJECTION MOLDING MACHINE 有权
    注塑机

    公开(公告)号:US20080305200A1

    公开(公告)日:2008-12-11

    申请号:US12130066

    申请日:2008-05-30

    IPC分类号: B29C45/77

    摘要: Suck back is started and a gradient of pressure (an amount of change in resin pressure while a screw or a plunger moves backward by a certain amount) is detected. Whether or not an absolute value of the detected gradient of the pressure is smaller than a reference value set in advance is determined, and it is determined that the reduction of the resin pressure has been completed when the absolute value becomes smaller than the reference value. A screw position at the time of the completion of the pressure reduction is stored and a screw movement amount from a suck back start position to a pressure reduction completion position is displayed on a screen.

    摘要翻译: 开始回吸,并且检测压力梯度(螺杆或柱塞向后移动一定量时树脂压力的变化量)。 确定检测到的压力梯度的绝对值是否小于预先设定的参考值,并且当绝对值变得小于参考值时,确定树脂压力的降低已经完成。 存储在完成压力降低时的螺杆位置,并且将屏幕上显示从回吸开始位置到减压完成位置的螺杆移动量。

    Injection molding machine having a freely rotatable screw
    6.
    发明授权
    Injection molding machine having a freely rotatable screw 有权
    注塑机具有可自由转动的螺丝

    公开(公告)号:US07074028B2

    公开(公告)日:2006-07-11

    申请号:US10743072

    申请日:2003-12-23

    IPC分类号: B29C45/77

    摘要: By starting injection, resin pressure in front of the check valve is raised, and the check ring moves backward. Pressure of resin accumulated between flights of the screw prevents the check ring from moving backward, and the screw is kept freely rotatable to thereby make the backward speed of the check ring faster. Therefore, the check ring is brought into tight contact with the check seat quickly to close the resin path. Thereafter, the rotation of the screw is fixed, reduced pressure in the injection/dwell causes the screw to rotate in a normal direction, and prevents the resin from being pressed toward the front of the check valve.

    摘要翻译: 通过启动注射,止回阀前面的树脂压力升高,止回环向后移动。 在螺钉的间隙处积聚的树脂的压力防止止回环向后移动,螺杆保持自由旋转,从而使止回环的后退速度更快。 因此,快速检查环与检查座紧密接触以封闭树脂路径。 此后,螺杆的旋转是固定的,注射/停留中的减压使得螺杆沿正常方向旋转,并且防止树脂被朝向止回阀的前部挤压。

    Injection molding machine with resin pressure gradient detection
    7.
    发明授权
    Injection molding machine with resin pressure gradient detection 有权
    注塑机采用树脂压力梯度检测

    公开(公告)号:US07806675B2

    公开(公告)日:2010-10-05

    申请号:US12130066

    申请日:2008-05-30

    IPC分类号: B29C45/77

    摘要: Suck back is started and a gradient of pressure (an amount of change in resin pressure while a screw or a plunger moves backward by a certain amount) is detected. Whether or not an absolute value of the detected gradient of the pressure is smaller than a reference value set in advance is determined, and it is determined that the reduction of the resin pressure has been completed when the absolute value becomes smaller than the reference value. A screw position at the time of the completion of the pressure reduction is stored and a screw movement amount from a suck back start position to a pressure reduction completion position is displayed on a screen.

    摘要翻译: 开始回吸,并且检测压力梯度(螺杆或柱塞向后移动一定量时树脂压力的变化量)。 确定检测到的压力梯度的绝对值是否小于预先设定的参考值,并且当绝对值变得小于参考值时,确定树脂压力的降低已经完成。 存储在完成压力降低时的螺杆位置,并且将屏幕上显示从回吸开始位置到减压完成位置的螺杆移动量。