Apparatus and method for cold roll forming of profiles with...

B - Operations – Transporting – 21 – D

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B21D 5/08 (2006.01)

Patent

CA 2708789

The invention relates to an apparatus for producing a profile by means of cold roll forming, said apparatus comprising a forming unit (9) having a least one adjustment stand (17, 17', 17", 17"') which comprises a roll stand including a pair of rolls between which there is a gap through which the sheet metal strip is passed along the length direction (X), wherein, during the cold roll forming, the roll stand is translationally and rotationally displaced with at least one translational degree of freedom and one rotational degree of freedom. According to the invention, the apparatus for forming a profile with varying height is configured so that the roll stand has one degreeof freedom for rotation about an axis of rotation extending substantially in the direction of the gap between the rolls, said rotational degree of freedom being independent of the at least one translational degree of freedom. The invention also relates to a corresponding process.

L'invention concerne un dispositif de formation d'un profilé par profilage par laminage à froid, qui comprend une unité (9) de façonnage dotée d'au moins une cage ajustable (17, 17', 17', 17'') qui présente une cage à rouleaux qui contient une paire de rouleaux entre lesquels existe un interstice dans lequel le feuillard de tôle est guidé dans le sens de sa longueur (X), la cage à rouleaux étant déplacée en translation et en rotation pendant le profilage par laminage à froid avec au moins un degré de liberté en translation et un degré de liberté en rotation. Selon l'invention, le dispositif de formation d'un profilé de hauteur variable est conçu de telle sorte que la cage à rouleaux présente un degré de rotation autour d'un axe de rotation découplé du ou des degrés de rotation en translation, et qui s'étend essentiellement dans la direction de l'interstice situé entre les rouleaux. L'invention concerne en outre un procédé correspondant.

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