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; and molding portions having a stamping structure applied to outer surfaces of the sets of rollers 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 of the sets 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.

A roller cage for a profiling line, comprising: a support frame (F1); a first motor equipped with a first substantially horizontal spindle (12) that projects in a cantilever fashion externally to a shoulder (S1) of the support frame (F1) into an operating space of the line; a first transverse roller (13), assembled directly on the first spindle (12); a movable frame (F2), with which an upright first roller (33) is associated, rotating about a first shaft (32) which projects in a cantilever fashion from the movable frame (F2); the movable frame (F2) is movable between an operating position, in which the first shaft (32) assumes a substantially vertical position, and a non-operating position, in which the first shaft (32) assumes a substantially horizontal position and is facing the same way as the first spindle (12), towards the operating space of the line.

A process includes producing a group of automotive components by forming components having various global geometries via a common tooling configured to bend a blank sheet of metal to create a variable cross section profile, forming an addendum as an integral portion of each formed component, and altering the global geometries in a series of incremental deformations to create local geometries while each component is affixed to a deforming machine via the addendum.

A turret roll forming machine includes at least one turret assembly carrying multiple rows of tooling (e.g., forming rollers), rotatable about an axis to selectively align rows of tooling with an input or output. A transmission is accessible from an exterior of the turret assembly without disassembling of the turret assembly to perform a changeover of roll tooling and/or maintenance on gears, bearings, or shafts of the transmission. Thus, a chain drive may be employed, advantageously accommodating differing rotational speeds for top and bottom forming rollers of each pair of forming rollers, e.g. to reduce roll scuffing. Pairs of forming rollers may be provided as cassettes, which are removably coupleable to the turret assembly allowing quick and easy reconfiguration and/or servicing, minimizing negative effects of changeover. The turret assembly may be a unitary structure (e.g., a weldment) improving rigidity and increasing accuracy of roll forming operations.

A method is provided for roll-forming a sheet metal strip (35) by driving the sheet metal strip through a row of forming stations (17, 18) having pairs of rollers (19, 20; 29, 30) directed towards each other and both holding the sheet metal strip therebetween and forming the sheet metal strip over roller edges. In every second forming station (12), two angles (41, 42) are gradually formed and in every second forming station two other angles (43, 44) are gradually formed.

For a tapered material having a plate thickness changing in a longitudinal direction to be roll-molded with stability by means of a simple and inexpensive configuration, a roll-molding device includes two parallel roller shafts, fixed rollers concentrically disposed with respect to one of the roller shafts, floating rollers disposed to be capable of being eccentric with clearances with respect to the other one of the roller shafts, facing the fixed rollers, and molding a belt-shaped metallic material pinched between the fixed rollers and themselves, a pressing roller abutting against an outer circumferential portion on the side opposite to points of contact of the floating rollers with the fixed rollers, and actuators pressing the floating rollers toward the fixed rollers via the pressing roller.

A roll forming apparatus for roll forming for producing from a sheet material a shaped steel which varies in cross-sectional shape in a longitudinal direction comprises a first rolling die which has an annular ridge part which varies in cross-sectional shape in a circumferential direction; a second rolling die which has an annular groove part which varies in cross-sectional shape in a circumferential direction; and a drive device for the first rolling die and the second rolling die. At least transition parts of the side surfaces of the annular ridge part of the first rolling die are provided with relief so that the gap with respect to the side surfaces of the annular groove part of the second rolling die becomes broader inward in the radial direction.

Disclosed is a flexible roll forming device including: bases respectively disposed on opposite sides with respect to a process direction center line in a left/right direction, each having an opening formed in an upper side thereof connected to an inside thereof, and rails configured thereon on opposite sides of the opening in a lateral direction of the process; forward/backward moving cyclinder having a slide plate provided to be movable along the rails on the base; turning reducer rotatably provided to the slide plate; and upper and lower forming rolls provided on the turning cylinder for subjecting a material fed thereto to flexible roll forming by using the upper and lower forming rolls while varying positions in the lateral direction of processing with the forward/backward moving cylinder, and angles from a process direction with the turning reducer.

A method for manufacturing a linear lighting device, the method comprising the steps of providing a sheet of optically transmissive material, a sheet of thermally conductive material, and a plurality of light sources, arranging the light sources on the sheet of thermally conductive material, roll forming the sheet of thermally conductive material into a supporting heat spreader profile, roll forming the sheet of optically transmissive material into a first shape to cover the light sources and define an optical chamber, attaching end portions of the sheet of optically. The method enables the use of a lower amount of material and provides an efficient method for mass manufacturing linear lighting devices.

Forming roll units included in an apparatus for manufacturing a roll-formed component each include a roll pair. The roll pair includes a receiving roll part and a first bending roll part that face each other. A plate member passing area is formed below the first bending roll part, the plate member passing area allowing a roll formed member excluding its side edge portions to pass through. The roll pair is configured to make, during bending, sliding movement in a width direction of the roll formed member and rotational movement about a normal direction to the roll formed member as a rotational center.