Low-friction bending system in a roll stand comprising...

B - Operations – Transporting – 21 – B

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B21B 29/00 (2006.01) B21B 31/10 (2006.01) B21B 13/02 (2006.01) B21B 31/20 (2006.01) B21B 31/24 (2006.01)

Patent

CA 2498303

Disclosed is a device for bending the rolls in a roll stand comprising several rolls. Said device is provided with bending blocks which are fastened between the built-in roll parts and the stand windows at the delivery end and the discharge end, the top and bottom bending blocks being connected by means of piston cylinders and/or a vertical positioning mechanism, preferably a spindle- type lifting gear unit. A bending force can be introduced into the bending blocks (5, 5a) which are connected on the same side via a piston cylinder (7) while the opposite bending blocks (5', 5a') can be positioned and locked via the spindle-type lifting gear unit (10).

La présente invention concerne un dispositif de flexion pour les cylindres d'une cage de laminoir à plusieurs cylindres, qui comprend des blocs de flexion fixés côté entrée et côté sortie entre les empoises de cylindre et les ouvertures d'ossature. Les blocs de flexion supérieurs et inférieurs sont reliés au moyen d'un cylindre à piston et/ou au moyen d'un système mécanique de positionnement vertical, de préférence au moyen d'un vérin de levage. Selon cette invention, d'un côté une force de flexion peut être appliquée par le cylindre à piston (7) dans les blocs de flexion reliés du même côté (5, 5a) et d'un autre côté les blocs de flexion opposés (5', 5a') peuvent être positionnés et bloqués par le vérin de levage (10).

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