Fanuc Corporation

Kikuo Watanabe

Yoshiharu Inaba

Masaki Muranaka

Susumu Ito

Hideo Naito

Masayuki Iwatsuki

Koichi Nishimura

Kazunari Tokuda

Takayuki Taira

Akira Kouketsu

Ryuji Tai

Hitoshi Minegishi

Hiroshi Yonekubo

Kaoru Maeda

Mitsuski Yoshioka

Kenji Haga

Shinji Kadoriku

Toshio Matsukura

A two-platen mold-clamping apparatus is provided, which requires neither tie bars nor rear platen, and is thus comprised of a reduced number of components, is easy to maintain, and is low-priced. A plurality of ball nuts are mounted on a movable platen so as to be rotatable but axially immovable relative to the movable platen. The movable platen mounted for reciprocal motion relative to a stationary platen. A respective ball screw is threadedly engaged with each of the ball nuts and each balls screw has an end portion that is fixed to the stationary platen. A motor rotates the ball nuts by means of sprockets and a chain so that the ball nuts and the movable platen are moved toward the stationary platen. The ball screws are moved longitudinally relative to the movable platen so as to generate a mold-clamping force after a mold-touch state has been reached.

Two-platen mold-clamping apparatus

Injection molding machine with a movable display device

Injection molding machine having an automatic mold changer

Ejector mechanism in an injection molding machine

Nozzle touch apparatus in an injection molding machine

Two-plate type injection apparatus

Toggle type mold clamping apparatus in an injection molding machine

Compressor unit in an injection-compression molding machine

Growing community of inventors

Oshino, Japan

Kikuo Watanabe