Powder molding press

Details Powder molding press Powder molding press

1994-06-29

1996-03-12

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means for molding powdered metal

264109, 264332, 264334, 419 68, 425352, 425355, 425411, B22F 302

Patent

active

054981476

ABSTRACT:
A powder molding press 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.

REFERENCES:
patent: 2499980 (1950-03-01), Stokes, Jr. et al.
patent: 3353215 (1967-11-01), Haller
patent: 4482307 (1984-11-01), Schaidl et al.
patent: 5326242 (1994-07-01), Katagiri et al.

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