Work holders – Holder mounted for movement – Relative to a station
Patent
1976-01-14
1976-08-31
Baldwin, Robert D.
Work holders
Holder mounted for movement
Relative to a station
425246, 425451, B29F 100
Patent
active
039776611
ABSTRACT:
The machine is designed particularly for molding plastics and includes two mold locking units, each having a stationary yoke and a mobile yoke, associated with a turntable used for transporting an open mold between first and second working stations. The turntable is mounted for rotation about an axis parallel to the direction of operation of the mold locking units and between the stationary and mobile yokes, to extend between the working stations. A rotary piston drive is mounted on a stationary yoke coaxially with the turntable axis to rotate the turntable. A spring is provided to exert a lifting effect on the turntable to provide a slight clearance between the turntable and the stationary yokes, and a hydraulic pressure mechanism acts coaxially of the turntable in opposition to the spring so that, when supplied with pressure, the turntable is forced against the lower or stationary yokes. At least one of the working stations has locations for two injection units which operate in directions at right angles to each other.
REFERENCES:
patent: 3574894 (1971-04-01), Aoki
patent: 3806296 (1974-04-01), Aoki
Baldwin Robert D.
Maschinenfabrik u. Giesseri Netstal AG
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