Multi-color injection mold rotation apparatus

Details Multi-color injection mold rotation apparatus Multi-color injection mold rotation apparatus

1998-05-12

2000-01-11

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to cause relative movement between mold and charger

425576, B29C 4516

Patent

active

06012914&

ABSTRACT:
A rotatable platen for supporting a plastic molding device includes a bottom clamp plate enclosing a central pillar supporting an axially rotating gear. The rotating gear turns a vertical shaft attached to a top of the gear. A longitudinal slot in the clamp plate receives a rack assembly that engages the rotating gear and is driven by a hydraulic piston. The vertical shaft passes through a wear plate, a lower rotating plate, a thrust bearing, an intermediate housing enclosing a portion of the thrust bearing and the top of the shaft turns an upper rotating plate that engages the molding device.

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patent: 4243362 (1981-01-01), Rees et al.
patent: 4345965 (1982-08-01), Lindenmayer et al.
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patent: 4726757 (1988-02-01), Berry
patent: 4750875 (1988-06-01), Shiina
patent: 5221538 (1993-06-01), Gasami et al.
patent: 5435715 (1995-07-01), Campbell

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