A top roll lifting arrangement for a press in a papermaking...

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 3/02 (2006.01) D21F 3/04 (2006.01) D21G 1/00 (2006.01)

Patent

CA 2230871

A top roll lifting arrangement for a roll press in a press section of a papermaking or boardmaking machine where the roll press includes a top roll (1) and a bottom roll (2), the rolls being opposed and parallel and having main axes defining a press plane (P) and forming between them a press nip (N). The press has a framework including two side frames (6) in parallel relationship to each other, one located on the drive side of the machine and the other one on the tender side of the machine. Each side frame has a first vertical column (7) upstream of the press nip and a second vertical column (8) downstream of the press nip. The upper roll (1) is carried by a bracket (10) extending between the upstream and downstream vertical columns (7, 8). The brackets have bevelled ends (33) that co-operate with inclined surfaces (32) of plate members (31) on the vertical columns.

L'invention concerne un système de levage de rouleau supérieur, destiné à une presse à rouleaux, dans la section de presse d'une machine à papier ou à carton. La presse à rouleaux comporte un rouleau supérieur (1) et un rouleau inférieur (2). Les rouleaux sont opposés et parallèles, leurs principaux axes définissent un plan (P) de presse. Ils forment entre eux une ligne (N) de contact de presse. La presse possède un châssis comprenant deux bâtis latéraux (6) parallèles dont l'un est situé côté entraînement et l'autre côté commande de la machine. Chaque bâti latéral du cadre possède une première colonne verticale (7) en amont de la ligne de contact de la presse et une seconde colonne verticale (8) en aval de ladite ligne. Le rouleau supérieur (1) est porté par une console (10) encadrée par les colonnes verticales amont et aval (7,8). La console présente des extrémités biseautées (33) qui coopèrent avec des surfaces inclinées (32) de plaques (31) de la colonne verticale.

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