公开(公告)号：US20200269300A1

公开(公告)日：2020-08-27

申请号：US16493925

申请日：2018-03-13

Applicant: SMS Group GmbH

Inventor： Olaf HAUSMANN ,  Helmut JAX ,  Bernd BOHNENKAMP ,  Roman DEHMEL

IPC: B21D1/02 ,  B21D1/05

Abstract: The invention relates to a roller leveler (1) having a set of upper and lower flattening rollers (2), wherein each flattening roller (2) is provided with a rotary drive (3) actuated by leveler control (4) for rotating the flattening roller (2) to advance a to-be-flattened metallic flat material in a forward direction (F) and, thereby, flatten the flat, metallic material. To achieve an improved and optimal flattening result, the invention proposes that each flattening roller (2) has a first rotary drive (L1, L2 . . . Ln) for driving one axial end of the flattening roller (2), and a second rotary drive (R1, R2 . . . Rn) for driving one axial end of the flattening roller (2) and a second rotary drive (R1, R2 . . . Rn) for driving the other end of the flattening roller, wherein the leveler controller (4) is designed to apply a parameter determining the direction of rotation of the flattening roller (2) to the first and second rotary drives (L1, L2 . . . Ln, R1, R2 . . . Rn) individually based on a pre-set value. The invention also relates to a method of operating a roller leveler of this kind.