Method of controlling the nip pressure of a roll

Details Method of controlling the nip pressure of a roll Method of controlling the nip pressure of a roll

B - Operations, Transporting

21

B

80/49

B21B 27/00 (2006.01) F16C 13/00 (2006.01)

Patent

CA 1118239

ABSTRACT IMPROVEMENTS IN OR RELATING TO A METHOD OF CONTROLLING THE NIP PRESSURE OF A ROLL The nip pressure exerted by a roll 10 is controlled by applying a pressure fluid to a longitudinal chamber 7 defined between a central axial beam 3 and the hollow outer roll 1. Means are also provided for supplying the pressure to the lower elongate chamber 8. Annular zones 13 are provided in the upper chamber which can be selectively connected by valves 19 to a reservoir 23 at atmospheric pressure to enable the pressure applied at the nip in the region of the zones 13 to be controlled.

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