Patent ID: 11878337
Assignee: INGVEST AB
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 1:
2. A roll-forming machine according to claim 1, wherein the clamping rollers (22a, 22b) of said first pair of clamping rollers are mounted to a support (26) configured to be displaceable sideways transversally to said feeding direction and pivotable about a vertical pivot axis (PA1) during the forming operation, and
the electronic control device (12) is configured to control the sideways displacement and the pivoting of the support (26) during the forming operation such that said first peripheral folding edge (24) follows a fold line (F1, F4) between said web (4a, 4b) and the associated side flange (3a, 3b) and a plane (P1) passing through centre axes (CA1, CA2) of both clamping rollers (22a, 22b) of the first pair of clamping rollers is always maintained perpendicular to a part of the fold line (F1, F4) in contact with the first peripheral folding edge (24).