Abstract: A power supplying apparatus for supplying power to servo amplifiers is configured by an AC/DC converter and a predetermined power storage circuit. In a process of a molding cycle except for an injection process, power is supplied from the AC/DC converter, and the power is stored in the power storage circuit. In the injection process, the AC/DC converter and the power storage circuit are controlled in conjunction with each other to supply the stored power, which is required when performing the injection process, from the power storage circuit, so as to prevent the AC/DC converter from supplying an excessive amount of power.

Abstract: A power supply device for supplying an electric power to a servo amplifier is configured by an AC/DC converter and a power accumulating device. Among a molding cycle, during a process where an amount of consumed power is small, a DC voltage is supplied to the servo amplifier from the AC/DC converter and a power is accumulated in the power accumulating device. In a process such as an injection process where a large power is required, a high DC voltage is supplied to the servo amplifier from the power accumulating device in place of the AC/DC converter.

Abstract: To provide a power supplying method that can reduce the maximum power of an electromotive injection molding machine including a power supplying apparatus having a predetermined power storage circuit. A power supplying apparatus for supplying power to servo amplifiers is configured by an AC/DC converter and a predetermined power storage circuit. In a process of a molding cycle except for an injection process, power is supplied from the AC/DC converter, and the power is stored in the power storage circuit. In the injection process, the AC/DC converter and the power storage circuit are controlled in conjunction with each other to supply the stored power, which is required when performing the injection process, from the power storage circuit, so as to prevent the AC/DC converter from supplying an excessive amount of power.

Abstract: A power supply device for supplying an electric power to a servo amplifier is configured by an AC/DC converter and a power accumulating device. Among a molding cycle, during a process where an amount of consumed power is small, a DC voltage is supplied to the servo amplifier from the AC/DC converter and a power is accumulated in the power accumulating device. In a process such as an injection process where a large power is required, a high DC voltage is supplied to the servo amplifier from the power accumulating device in place of the AC/DC converter.