Deflection compensating roll for providing uniform contact press

Details Deflection compensating roll for providing uniform contact press Deflection compensating roll for providing uniform contact press

1983-11-04

1984-12-11

Burr, Edgar S.

Printing

Intaglio

Rotary

101216, 29116AD, 100162B, B41F 900

Patent

active

044871228

ABSTRACT:
A system for compensating for roll deflection to provide uniform contact pressure across the width of a web disposed between a pair of counter rollers, comprising a first roller mounted for rotation, a second roller mounted for rotation about a deflectable shaft, pressure applying means coupled to the ends of the deflectable shaft for moving the second roller into contact with the first roller, the second roller including an outer shell mounted for rotation relative to the deflectable shaft, a pair of end bearings disposed adjacent the ends of the outer sleeve and a pair of main bearings disposed inwardly from the end bearings a predetermined distance to transmit the applied pressure uniformly over the face width of the second roller when the second roller is used with a flexible first roller, and self-adjusting deflection compensating means arranged proximate to the deflectable shaft for applying pressure to the ends of the outer shell in response to the deflection of the deflectable shaft by the pressure applying means to provide uniform pressure across the face width of the second roller when the second roller is used with a first roller having a high resistance to bending.

REFERENCES:
patent: 2651103 (1953-09-01), Hornbostel
patent: 2689392 (1954-09-01), Robertson
patent: 2730771 (1956-01-01), Beck et al.
patent: 2825217 (1958-03-01), Byrd
patent: 3097591 (1963-07-01), Justus
patent: 3672018 (1972-06-01), Junk et al.
patent: 3885283 (1975-05-01), Biondetti
patent: 3983811 (1976-10-01), Fuchs et al.
patent: 4354431 (1982-10-01), Fischer
patent: 4372205 (1983-02-01), Pflaum
patent: 4438695 (1984-03-01), Maier et al.

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