Rotary molding machine

Details Rotary molding machine Rotary molding machine

1989-09-14

1991-11-12

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With step of cleaning, polishing, or preconditioning...

264219, 425183, 425188, 425194, 425220, 425362, B29C 3330

Patent

active

050645846

ABSTRACT:
A rotary molding apparatus has a die roll and a split clamping pillow block structure of self-centering structure supporting the opposite shaft ends of the die roll. The split pillow block has a pivotally mounted portion and a device for locking that portion when the die roll is in operation. A feed roller is mounted on upright arms which are urged toward the die roll. The arms carry doctor blade structure between the feed roller and the die roll and the doctor blade is biased toward the die roll. A fluent material supply hopper cooperates with the feed roller and there is a guide structure for effecting movement of the hopper between the feed roller cooperation position and a backed-off position. A magazine is provied for storing a plurality of die rolls and a mechanism is provided for selecting any die roll from the magazine and for transporting such die roll from the magazine into working position in the pillow blocks and for selectively returning the die roll to the magazine.

REFERENCES:
patent: 1939362 (1933-12-01), Patt
patent: 2235492 (1941-03-01), Weidenmiller
patent: 2666399 (1954-01-01), Pereyra
patent: 3416466 (1968-12-01), Weidenmiller
patent: 3469540 (1969-09-01), Werner
patent: 4155691 (1979-05-01), Ridgeway et al.
patent: 4306847 (1981-12-01), Rollins
patent: 4362754 (1982-12-01), Wenger et al.

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