Toshiba Kikai Kabushiki Kaisha

Harunobu Inami

Jun Koike

Harumichi Tokuyama

Yasumasa Sugiyama

Keisuke Mori

Jun Enomoto

Mitsuru Koga

An injection device is provided with a stationary-side frame supporting a barrel, a movable-side frame rotatably supporting a screw, a pair of ball screws, and injection drive mechanisms includes servomotors configured to rotate the ball screws. A force detector such as a load cell and the like is disposed between the first ball screw and the movable-side frame. A dummy member is disposed between the second ball screw and the movable-side frame. A control unit controls the first injection drive mechanism based on the output of the force detector and controls the second injection drive mechanism based on the output of the force detector and an arithmetic operation performed in consideration of the respective spring constants of the force detector and the dummy member.

Injection device, molding machine, and method for controlling injection device

A reciprocating apparatus comprises a reciprocating member, a drive mechanism, an input device, a work-switch position calculating unit configured to calculate a work-switch position for the drive mechanism, a direction-switch position calculating unit configured to calculate a direction-switch position, a remaining-distance calculating unit configured to calculate a remaining distance that is a difference between the direction-switch position calculated by the direction-switch position calculating unit and a direction-switch position input at the input device, a target direction-switch position calculating unit configured to add the remaining distance, to the direction-switch position calculated by the direction-switch position calculating unit, thereby to calculate a target direction-switch position, and a corrected position calculating unit configured to calculates a corrected work-switch position for the drive mechanism so that the drive mechanism may cause the reciprocating member to start moving in the opposite direction at the target direction-switch position calculated by the target direction-switch position calculating unit.

Reciprocating apparatus, method of controlling reciprocating apparatus, and injection molding apparatus

An injection molding device comprises a mold-clamping device that operates in both of a mold-closing state in which a mold is closed under predetermined pressure and a micro mold-open state in which the mold is held in a state in which the mold is open from the mold-closing state by a predetermined amount, an injection device that molds a molded product by injecting a molding material into the mold set to the mold-closing state or the micro mold-open state and a controller that changes a stop position of the mold in the micro mold-open state in accordance with a change of a mold-closing position when the mold-closing position of the mold in the mold-closing state is changed.

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Numazu, Japan

Harunobu Inami