Rolling mill comprising means for exchanging the rolls

B - Operations – Transporting – 21 – B

Patent

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Details

B21B 31/10 (2006.01) B21B 31/08 (2006.01)

Patent

CA 2507892

The invention relates to a rolling mill (1) comprising several rolling frames (Fi) and support plates (7) that are provided on the operator side (BS) of the frames (Fi) and can be displaced transversally to the roll axes, said plates being equipped to receive sets of working rolls (14) and lying adjacent to the mill floor (9). The mill also comprises pits (8) that are situated on the operator side (BS) upstream of each frame (Fi), the bottom of said pits being configured to deploy sets of support rolls (12). The aim of the invention is to reduce the time required to exchange the rolls. To achieve this: the support plates (7) are arranged in a support plate line (6), directly adjacent to the rolling frames (Fi) and covering the pits (8); the support plates (7) are detachably interconnected and in order to exchange the set of support rolls (12), the support plate line (6) can be displaced out of the frame area (5) transversally to the roll axes along the line of the pits, in subgroups (17) of interconnected support plates or in its entirety (6 ), in order to open at least one and if required all pits (8).

L'invention concerne un laminoir (1) comprenant plusieurs cages de laminoir (Fi) et des plaques de support (7) situées sur le côté opérateur (BS) de la cage (Fi) et pouvant être déplacées de manière transversale à l'axe du cylindre. Lesdites plaques de support sont équipées de façon à recevoir des ensembles de cylindres de travail (14) et sont disposées de manière adjacente au sol de l'usine (9). Ledit laminoir comprend également des orifices (8) situés sur le côté opérateur (BS) en amont des cages (Fi), le fond de ces orifices étant conçu pour déployer les ensembles de cylindres de support (12). L'objectif de l'invention est de réduire le temps nécessaire au changement des cylindres. A cet effet, les plaques de support (7) sont disposées dans une ligne (6) de plaques de support, directement adjacente aux cages de laminoir (Fi) et qui recouvrent lesdits orifices (8), les plaques de support (7) sont reliées les unes aux autres, de manière à pouvoir se détacher, et lors de l'échange des ensembles de cylindres de support (12), la ligne (6) de plaques de support peut être déplacée hors de la zone de la cage (5) de manière transversale à l'axe du cylindre le long de la ligne d'orifices, en sous-groupes (17) de plaques de support interconnectées ou dans leur totalité (6'), ce qui permet d'ouvrir au moins un orifice et éventuellement tous les orifices (8).

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