METHOD AND DEVICE FOR PRODUCING CAMBERED SECTIONS OF SPRING BAND

The invention relates to a method and a device for producing cambered sections of spring band, the thickness of the material varying over the length of the section. The aim of the invention is to obtain dimensionally stable bending radii with precise tolerances. To this end, the spring band is passed through a bending unit (20) consisting of three bearing points (23-25) set apart from each other and a reverse bending unit (22) situated downstream of the bending unit in the direction of advancement of the spring band and consisting of a fourth bearing point (32). The bent and reverse-bent spring band sections (11) are separated from the spring band (10) in a separating unit (21). The middle bearing point (24) of the bending unit (20) and the fourth bearing point (32) of the reverse bending unit (22) are configured so that they are displaceable and are controlled in terms of their positioning relative to the spring band (10) with an NC control unit (29), in accordance with a predetermined programme.