Roll for use in calenders and like machines

Details Roll for use in calenders and like machines Roll for use in calenders and like machines

D - Textiles, Paper

21

G

D21G 1/02 (2006.01) B21B 13/14 (2006.01) B21B 27/08 (2006.01) F16C 13/00 (2006.01) F16C 13/02 (2006.01)

Patent

CA 2062386

A controlled deflection roll for use in calenders and like machines has a non-rotatable carrier for a hollow cylindrical shell the end portions of which are rotatable on bearings and the central portion of which surrounds hydraulically operated shell deforming elements. A first hydraulic circuit is provided to supply heated oil to the deforming elements, and a second hydraulic circuit serves to feed lubricant to the bearings. The two circuits are separated from each other by thermal barriers which are installed between the shell and the carrier intermediate the deforming elements and the bearings. Valves and/or flow restrictors are provided in the second circuit to vary the rate of feed of lubricant to and/or the flow of lubricant from the bearings. This renders it possible to establish a desired temperature profile along the full length of the peripheral surface of the shell.

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