Roll-forming machine for forming, from a flat sheet metal strip (5), a hat beam which has a profile that varies along its length. The machine comprises several consecutively arranged forming stations, each of which comprising a first pair of clamping rollers (22a, 22b) for clamping a side flange (3a) of the hat beam and a second pair of clamping rollers (23a, 23b) for clamping a central flange (2) thereof. The clamping rollers of said second pair are individually displaceable in vertical direction and horizontally in the feeding direction of the sheet metal strip. The displacement of the clamping rollers (23a, 23b) of said second pair is controlled by an electronic control device during a forming operation such that a plane that goes through the centre axes (CA3, CA4) of both these clamping rollers is maintained perpendicular to the part of the central flange (2) received in the nip (31) between these clamping rollers.

A profiling station, a profiling unit formed therefrom and also a profiling installation continuously form a material strip into a profile. The profiling station includes a rack frame, a profiling arrangement with a forming roller and also a first and a second counter roller as well as a drive assembly. A first roller axis and a second roller axis of the counter rollers form between them a buckling angle, wherein the counter rollers define a bending edge for the material strip to be formed. The first counter roller and also the second counter roller are driven by the drive assembly in such a way that the first counter roller has a circumferential speed at its outer circumference and the second counter roller has a circumferential speed at its outer circumference that are equal to one another.

A two-axis roll forming apparatus for forming sheet metal includes a first carriage and a second carriage each reciprocally movable parallel to a longitudinal axis. The second carriage is spaced apart from the first carriage and separated therefrom by a gap. A first bending station is carried by the first carriage and reciprocal moveable parallel to a transverse axis which is perpendicular to the longitudinal axis. A second bending station is carried by the second carriage and reciprocal moveable parallel to the transverse axis which is perpendicular to the longitudinal axis.

The invention relates to a device (10) for the flexible roll forming of a semifinished product (12), in particular a rolled sheet, to form a profile (12′, 12″) with a cross section varying along the longitudinal axis thereof and/or with a varying longitudinal axis. The device (10) has a frame (14) and a number of supporting devices (16), which are carried by the frame (14). The supporting devices (16) are each movable in a translational manner in relation to the frame (14) and rotatably mounted. The device (10) also has a number of profiling units (18), which each have a pair (20) of rotatably mounted rollers (20′, 20″), between which a rolling gap (102) remains. According to the invention, precisely two profiling units (18) are arranged in a rotatably mounted manner on each supporting device (16).

A roll stamping apparatus includes sets of rollers that rotate while facing each other so as to press opposite surfaces of a material which is continuously supplied to move between the rollers. The sets of rollers have molding portions with a stamping structure applied to outer surfaces so as to mold the material, wherein a plurality of sets of rollers are disposed along a movement direction of the material, the respective molding portions of the sets of rollers are formed to sequentially change a cross section of the material along the movement of the material, and the molding portion of at least one set of rollers before a final set of rollers through which the material finally passes is a set of over-molding rollers having a length in a circumferential direction longer than the molding portions of the final set of rollers.

An apparatus and a method for producing an elongated profiled part, in which a profiled strip is produced from a flat strip by rolling and the profiled strip is embossed in sections, by means of which at least one longitudinal section of the profiled strip is offset relative to at least one other longitudinal section in a direction perpendicular to the longitudinal direction of the profiled strip, and with which method the strip is trimmed in such a way that, after the embossing, the longitudinal sections that are offset relative to each other have different cross-sections. In order to increase the reproducibility of the method, before the profiling, the flat strip is trimmed in such a way that by means of the embossing of the trimmed and profiled strip, the longitudinal sections that are offset relative to each other have different cross-sections.

An apparatus for the support and the controlled advancement of a sheet in a bending machine for forming a cylindrical or conical structure, in particular of a truncated cone structure, comprises a base structural frame adapted to be positioned upstream of said bending machine, with respect to an advancement direction of the sheet, a plurality of conveying modules which can be mounted, removable, on the structural frame so as to generate a plan of modular support and advancement which can be configured geometrically according to the shape and dimensions of the sheet to be produced; the modular support and advancement plane is geometrically configured to keep the sheet metal part supported by the plane in a flat condition; an lifting and tilting device configured to vary the position of the structural frame, supporting the conveying modules, from a horizontal lying position to an inclined lying position in which the support and advancement plane is inclined downwards towards the bending machine; repositioning and position correcting members configured to orient and arrange the sheet in a correct position before starting a bending cycle and configured to correct, during the bending cycle, the position of the sheet to impose it a predetermined advancement trajectory towards and through the bending machine. The relative method is also envisaged.

An apparatus for roll stamping that is capable of expanding a shape range of a product without limitation due to, for example, a radius of curvature or a height of a variable section includes: an inclined roll set including a first rotation roll and a second rotation roll rotating while facing each other, have fixed positions and angles, and are inclined with respect to a traveling material, in which a first forming portion for forming the material is formed on an outer surface of the first rotation roll, the first forming portion includes a first circumferential groove portion inclined at an oblique angle rather than a right angle with respect to a rotation shaft of the first rotation roll.

Apparatus, systems, methods, and articles of manufacture are disclosed herein that flexibly form variable component geometries in a roll-forming process. An example roll-forming apparatus includes a forming unit to move along a stationary component to form a cross-section in the component, a first roll operatively coupled to the forming unit to engage the component, and a second roll operatively coupled to the forming unit to set a forming angle for movement along the component, the component formed between the first roll and the second roll.

A profiling station, a profiling unit formed therefrom and also a profiling installation continuously form a material strip into a profile. The profiling station includes a rack frame, a profiling arrangement with a forming roller and also a first and a second counter roller as well as a drive assembly. A first roller axis and a second roller axis of the counter rollers form between them a buckling angle, wherein the counter rollers define a bending edge for the material strip to be formed. The first counter roller and also the second counter roller are driven by the drive assembly in such a way that the first counter roller has a circumferential speed at its outer circumference and the second counter roller has a circumferential speed at its outer circumference that are equal to one another.