Toshiba Kikai Kabushiki Kaisha

Takeshi Iida

Takamichi Ito

Ryuji Aono

Naomi Kobayashi

Takeshi Nagami

An opening/closing device () includes: a stationary platen (); a movable platen () capable of moving toward or away from the stationary platen (); an opening/closing mechanism () having a plurality of toggle links () at least one () of which is connected to the movable platen (); a driving device () including a cross head () connected to at least one () of the toggle links and capable of moving the movable platen (); and a control portion (). The control portion () is configured to control the cross head () such that the movable platen () moves at fixed speed during fine die-opening operation.

Opening/closing device, molding apparatus, and molding method

A servo control device includes a current supply unit for supplying a drive unit with a drive current for driving a target to be controlled; a first detector for detecting at least the drive current value; and a logical arithmetic section which introduces a current command determining the drive current for controlling the drive speed of the drive unit to move the target to be controlled to a predetermined position, and which introduces the drive current value fed back from the first detector. The logical arithmetic section outputs the current command to the current supply unit after correcting the current command by a digital logic process on the basis of the drive current value.

Servo control device

A servo control device comprises a current supply unit for supplying a drive unit with a drive current for driving a target to be controlled, a first detector for detecting at least the drive current value, and a logical arithmetic section. The logical arithmetic section introduces a current command determining the drive current for controlling the drive speed of the drive unit to move the target to a predetermined position, and introduces the drive current value fed back from the first detector. The logical arithmetic section outputs the current command to the current supply unit after converting the current command by a digital logic process on the basis of the drive current value by using a custom LSI.

Growing community of inventors

Numazu, Japan

Takeshi Iida