Control method and drive control apparatus of hydraulic injection molding machine
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United States of America Patent
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Jan 5, 2021
Grant Date -
May 28, 2020
app pub date -
Dec 22, 2017
filing date -
Dec 22, 2016
priority date (Note) -
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Abstract
When the deceleration start point is reached, the meter-in side of the hydraulic driving actuator is subjected to a flow rate control to thereby start the deceleration control processing. The position to which the movable unit is moved is detected to use a speed instruction corresponding to the movement position to subject the hydraulic driving actuator to a meter-in control. The position to which the movable unit is moved is detected to calculate the moving speed of the movable unit. Based on the speed instruction, the moving speed is subjected to the feedback control using the meter-out control to the hydraulic driving actuator.
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