Profile straightening apparatus for a profiling system

A method for correcting axial deviations of a metal profile (4) from a prescribed profile geometry in a profiling system which is used to produce the metal profile (4) by roll profiling along a longitudinal axis (9) of the metal profile (4), using a profile straightening apparatus (5) including at least two interacting correction rollers (6, 7) mounted to a frame (8), the at least two interacting correction rollers (6, 7) being adjustable in at least two radial directions and also in at least one direction of rotation, and force measuring sensors adapted to detect forces (Fy, Fz) acting on the metal profile (4) in the radial directions and for any torques (Mx) acting on the metal profile (4) in a direction of rotation about the longitudinal axis (9), the method comprising:

• moving the metal profile (4) into the profile straightening apparatus (5), which is integrated in the profiling system or is connected downstream thereof,
• ascertaining, before the metal profile (4) reaches a downstream machining station, at least one of any radial forces (Fy, Fz) acting on the metal profile (4) in the profile straightening apparatus (5) or any torques (Mx) using the force measuring sensors, and
• calculating adjustment values for an adjustment of the correction rollers (6, 7) in at least one of the radial directions or the direction of rotation from the at least one of the radial forces or torques to be used for the correction rollers (6, 7) in order to correct axial deviations of the metal profile (4) from the prescribed profile geometry.