Plastic article or earthenware shaping or treating: apparatus – Means for molding powdered metal
Patent
1991-08-09
1994-07-05
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Means for molding powdered metal
425352, 425355, 425411, B22F 302
Patent
active
053262425
ABSTRACT:
A powder molding press includes a die plate provided with a die having a die hole, a punch device to be inserted into the die hole and a hydraulic cylinder device attached to the punch device for driving the same, the hydraulic cylinder device being arranged coaxially with the punch device. A movable punch plate may be disposed on one side of the die plate in parallel thereto with a predetermined space and a punch adapter for securing the punch device to the punch plate may be also disposed. The punch device includes a plurality of punches disposed axially in series. In this connection, a plurality of punch plates, hydraulic cylinder assemblies and punch adapters are arranged in a manner that succeeding cylindrical punches disposed axially in series are secured to corresponding punch plates through corresponding punch adapters each being inserted into a directly preceding punch adapter to be axially movable and that succeeding hydraulic cylinder assemblies for actuating corresponding punch plates are disposed axially in series each between a corresponding punch plate and a directly succeeding punch plate and arranged coaxially with corresponding punch adapters so that the succeeding punch adapter is axially movable along an inner peripheral surface of the through hole of a directly preceding hydraulic cylinder assembly.
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Katagiri Takeshi
Shirasaki Siro
Tajima Tukasa
Yamamoto Masao
Leyson Joseph
Woo Jay H.
Yoshizuka Seiki Co., Ltd.
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