Polishing stack for thermoplastic films or sheets

Details Polishing stack for thermoplastic films or sheets Polishing stack for thermoplastic films or sheets

1994-02-07

1995-11-07

Kisliuk, Bruce M.

Abrading

Machine

Rotary tool

451188, 451183, 451207, 451110, B24B 900

Patent

active

054643635

ABSTRACT:
The invention relates to a polishing stack with at least one fixed and one moveable polishing roll for polishing a plastic sheet leaving a wide extrusion die. A device is provided that preloads the frames and the bearings and acts on a roll gap adjusting device which includes a pinion gear arrangement and drive for finely adjusting the roll gap between the fixed and moveable rolls. The polishing stack in preferred form includes a center fixed roll and top and bottom adjustable rolls.

REFERENCES:
patent: 2267521 (1941-12-01), Griffin
patent: 4183181 (1980-01-01), Kitazawa
patent: 5312569 (1994-05-01), Mezei

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