Nissei Plastic Industrial Co., Ltd.

St. Marianna University School of Medicine

Partners Co., Ltd.

Okamoto, Naoki

Tadahiro Hosokawa

Hiroo Okubo

Naoki Okamoto

Kazuhiro Kawamura

The object of the present invention is to provide a traction type electric injection molding machine requiring only one electric motor for mold clamping and only one rotational transformer, with a mold clamping apparatus installed on the top of a bed and between the front and rear ends of the bed, and with an injection apparatus installed between them. A fixed platen and a supporting platen are mounted oppositely on a bed and connected by tie bars backward and forward. Traction rods insert through the platens and , from which their ends protrude. The tip ends of the traction rods carry a movable platen , which can be moved toward and away from the fixed platen . The rear ends of the traction rods carry a traction plate . A mold clamping apparatus includes a motion transformer , which includes a screw shaft and a nut . The screw shaft fixed to the traction plate . The nut is supported rotatably on the inside of the supporting platen and fitted with a pulley . A screw preplasticating injection apparatus is supported over the bed between the fixed and supporting platens and slidably on the tie bars inserting through it.

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Nagano-ken, Japan

Tadahiro Hosokawa