Deflection controllable roller for use in a calender

Details Deflection controllable roller for use in a calender Deflection controllable roller for use in a calender

D - Textiles, Paper

21

G

D21G 1/02 (2006.01) F16C 13/00 (2006.01)

Patent

CA 2187381

A deflection controllable roller has as an on-off valve disposed in each of a plurality of discharge lines. The on-off valve opens only toward the discharge side. The discharge side of the on-off valve is alternately pressurized with an opening pressure that is less than an internal chamber pressure or with a cut-off pressure that is greater than the internal chamber pressure. The on-off valves are located directly in the bearing device and are, therefore, relatively easily controlled.

Cylindre à déflexion réglable comprenant une vanne tout ou rien placée dans chacun des conduits d'évacuation. La vanne s'ouvre seulement sur le côté d'évacuation. Ce côté est mis sous pression alternativement avec une pression initiale qui est moindre que celle d'une chambre interne ou avec une pression limite qui est supérieure à celle de la chambre interne. Les vannes tout ou rien sont situées directement dans le palier, permettant ainsi un contrôle relativement simple.

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