Roll or roller – With antideflection means – Rotatable relative to supporting shaft
Patent
1996-01-22
1998-07-21
Cuda, Irene
Roll or roller
With antideflection means
Rotatable relative to supporting shaft
492 20, B23P 1500
Patent
active
057827290
ABSTRACT:
A method for regulating the loading of adjustable-crown roll having a stationary roll axle around which a roll mantle is rotatingly mounted, and of which roll a nip is formed with a backup roll. The deflection of the roll mantle and/or the linear load in the nip is regulated by loading elements and a backup zone supported on the roll axle and acting upon the inner face of the roll mantle in the direction of the nip plane. Upon the inner face of the roll mantle of the roll of the backup zone/zones, a sum force is produced which acts in the nip plane in a direction substantially opposite to the force produced by the loading element, and the force effect applied by the backup zone/zones to the inner face of the roll mantle is applied, examined in the direction of the circumference, to more than one point. The adjustable-crown roll forms a nip with a backup roll and includes a stationary roll axle around which a roll mantle is arranged revolving, between which roll mantle and roll axle loading elements and backup zones are arranged to act upon the inner face of the roll mantle and are supported on the roll axle. The backup zones supported on the roll axle are formed of at least two rows of backup-zone elements or by a backup chamber or by at least one row of backup-zone elements and a backup chamber. The sum force produced by the elements or chamber in the nip plane is in a direction substantially opposite to the force produced by the row of loading elements.
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Cuda Irene
Valmet Corporation
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