Control apparatus of injection molding machine
AssigneeFanuc Corporation
InventorsJunpei MARUYAMA, Masakazu NIWA
Life of this patent
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Abstract
A power supply converter controller in an injection molding machine continuously operates a power supply converter in a continuous operation interval, operates the power supply converter in a step-up interval to increase a voltage of an electric storage unit up to a step-up voltage, and intermittently operates the power supply converter in an intermittent operation interval.
Claims9
A control apparatus of an injection molding machine including a servo motor configured to drive an axis, a driving apparatus configured to drive the servo motor, a power supply converter configured to supply power to the driving apparatus after a voltage from a power supply is increased, an electric storage unit connected between the power supply converter and the driving unit, and a power supply converter controller configured to control the power supply converter, wherein
- a molding cycle into a continuous operation interval of the power supply converter, a step-up interval prior to the continuous operation interval, and an intermittent operation interval of the power supply converter as an interval other than the continuous operation interval and the step-up interval constitute a molding cycle,
- the power supply converter controller is configured to,
- operate the power supply converter continuously in the continuous operation interval,
- increase the voltage of the electric storage unit to a step-up voltage by operating the power supply converter in the step-up interval, and
- operate the power supply converter intermittently in the intermittent operation interval.
Dependencies are inferred from the claim text.