Abstract: A printer includes a reverse bending member that bends a paper toward an opposite side to a curl of the paper, and a bifurcated member to correct the curl of the paper with the reverse bending member. The reverse bending member is disposed between a paper drawing position and a paper feeding roller. The bifurcated member is swingably arranged about a shaft extending in a width direction of the paper. The bifurcated member includes an upstream arm and a downstream arm. The upstream arm has a tip positioned between the rolled paper and the reverse bending member, and moves toward or from the reverse bending member. The downstream arm has a tip positioned between the reverse bending member and the feeding roller to be in contact with the paper, and rotates in accordance with a tension level of the paper to press the upstream arm toward the reverse bending member.

Abstract: The present invention relates to a method and an apparatus for forming a hairpin-shaped winding element from a conductor.

Abstract: A processing method of NPR steel rebar rod is disclosed. The NPR steel rebar is cold processed and has a yield strength of 800˜950 MPa, a tensile strength of 900˜1100 MPa, and a percentage elongation at maximum force of not less than 10˜40%. The processing method comprises the following steps: a I-shaped placing step L20, an uncoiling step L30, a flattening step L40, a butt welding step L50, a sandblasting step L60, a straightening step L70, a pointing step L80, a hydraulic head-pushing step L90, a cold drawn spiral ribbing step L10, a straight forward continuous wire drawing and traction step L11, a pre-straightening step L12, a fine straightening step L13, and a cutting-off step L14. The processing method can meet the automatic intelligent production requirements of NPR steel rebar, cold rolled spiral NPR steel rebar, and pre-stressed NPR steel rebar.

Abstract: A bend test device and bend test method enable a mandrel bend test to be automatically performed. The bend test device includes a controlled motor, a drive shaft coupled to the motor, a nose piece coupled to the drive shaft, and a nose clamp for securing a device under test (DUT) to the nose piece. A control system connected to the bend test device uses a programmed control algorithm to control the bend test device. The motor is connected to the drive shaft and rotates the drive shaft in response to control signaling provided by the control system. The rotating drive shaft in turn rotates the nose piece. Rotation of the nose piece bends the mounted DUT. The motor rotates the drive shaft as defined by the software parameters and the DUT is bent back and forth across a defined radius edge.

Abstract: Methods, devices, and systems for testing the flexibility of a sample such as an electronic device are provided herein. A testing system can have a motor operably connected to a mandrel such that the motor causes the mandrel to accurately and precisely rotate and cause the sample to conform to an outer surface of the mandrel. Moreover, a proximal end of the sample is secured to the outer surface of the mandrel, and the opposing distal end is controlled by a retractable holder such that the entire sample is subjected to a constant bend radius as the mandrel rotates. Other aspects and features such as controlling the environment around the mandrel and securing small samples to the mandrel are also described herein.

Abstract: A material-forming device for a wire mesh includes a plurality of contact rods that are supported by the frame and configured to threadedly receive a sheet of wire mesh that moves through the plurality of contact rods in a downstream direction. An inner contact rod and an outer contact rod are each configured to engage a first side of the sheet of wire mesh, and a middle contact rod is positioned between the inner contact rod and the outer rod and configured to engage a second side of the sheet of wire mesh that opposes the first side. The shape of the outer contact rod and/or the inner contact rod is configured to bend the sheet of wire mesh around the middle contact rod as the sheet of wire mesh moves in the downstream direction.

Abstract: 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 a

Abstract: An apparatus for forming a round or oval shaped duct for all AC systems in one continuous operation where two driving rolls advance a flat metal sheet to at least one multi-positioning bending roll, where the at least one bending roll is moveable to a bending position for different curvatures and a non-bending position. The driving rolls advance the sheet through while the bending roll bends the sheet to form the curved sides, and the bending roll in the non-bending position form the flat sides of the oval shaped duct. A position sensor detects the position of the flat metal sheet in the rolls to control the location along the sheet where the bending roll is moved to either of the bending or non-bending positions while the driving rolls are stopped. An adhesive dispenser joins both ends of the sheet, resulting in a complete duct.

Abstract: An apparatus for forming the profile of deformable materials including tubular sections. The apparatus (1) includes at least two sets (4, 5) of die elements (6), each set (4,5) including a plurality of die elements (6) respectively arranged to travel along corresponding endless path. The paths each include a forming portion (9,10) in which die elements (6) of each set (4. 5) are opposed to define a forming space (11) therebetween. The forming portion (9, 10) of each path is configured so that one or more dimensions of the forming space (11) reduce along the length of the forming portion (9,10) to simultaneously apply lateral forces to material progressing through the forming portion.

Abstract: A machine to bend pipes that includes: a plate that is configured and arranged to move along an X-axis; a bending head connected to the plate, where the bending head is capable of moving along a Z-axis and is equipped with at least one bending arm and at least one bending die; and at least one calendering jig, which is located at a position that is before the bending die, with respect to a feeding direction of the pipe. The calendering jig includes at least two first rolls used to lock the pipe and at least one second roll that is configured and arranged for determining the calendering radius of the pipe, wherein the at least one second roll is anchored to the plate. The bending head is configured and arranged to move in the Z direction with respect to both the plate and the second roll.

Abstract: The pressures provided by several wheels or rollers on various members of a metal panel are controlled to produce a curved panel of desired radius with little or no distortion. Predetermined pressures are used to achieve the desired curvature and increased pressures provide smaller radii of curvature. For metal “U” panels pressure is preferably applied on two members. For seamed metal panels pressure is preferably applied on three members. Additional curvature may be obtained by use of a curving bar. Motors drive the wheels, which urge these panel members through the wheels, the wheels having a separation distance less than the original thickness of the metal. This results in the metal of those members being elongated, thereby curving the panel with little or no distortion. In exemplary embodiments curved panels may be formed at a rate of 22-25 feet per minute or at 40-55 feet per minute.

Abstract: Apparatus (120) for making an adaptor (2) which is used in heating and ventilation systems and which is used to connect ducting which is of a square cross sectional shape to ducting which is of a circular cross sectional shape, which apparatus (120) comprises: (i) a work area (24) for receiving sheet metal (127) to be made into the adaptor (2); (ii) a creasing member (28) which is for creasing the sheet metal (127) on the work area (24); (iii) a pivot member (122) about which the sheet metal (127) is pivoted on the work area such that the creasing member (28) is able to make a plurality of creases (146) which are in the sheet metal (127) and which extend from the pivot member (122) in order to produce a transition part of the adaptor (2) which is positioned between a first end of the adaptor (2) which is of the square cross sectional shape and a second end of the adaptor (2) which is of the circular cross sectional shape; (iv) operator means (32) for causing the creasing member (28) to operate and crease t

Abstract: A pre-rounding element (14) is used in a rounding apparatus (4) for rounding can body blanks from sheet metal blanks. The lower element part (22) of the pre-rounding element (14) is displaceable by an actuation element (23). This allows the adjustment of the pre-rounding element even during operation of the rounding apparatus. Preferably a measurement of sheet metal blank properties takes place. The measurement may include a thickness measurement and/or a strength measurement of blanks. The pre-rounding element is controlled in dependency of the measurement result. This allows a constant rounding result even with varying sheet metal properties.

Abstract: An apparatus forms a sheet into a beam having four exterior walls and a common center leg extending between an opposing two of the walls. The apparatus includes a roll former forming the sheet into the beam cross section, a welding station with top and bottom laser welders, and a weld box fixture having inwardly-biased external mandrels (biased by actuators) and outwardly-biased internal split mandrels (biased by springs) that interact to hold a desired shape of the beam in the weld fixture, and also includes a sweeping unit and cutoff device. By this arrangement, the internal and external mandrels, in combination with a bias of the actuators and springs, control a shape of the beam by flexure and movement of material of the sheet when in the weld box fixture during a welding process of the welder.

Abstract: A roll former for forming a sheet into a continuous multi-tubular reinforcement beam. The roll former includes a first set of rollers that are configured to bend the sheet to form a common center wall in generally perpendicular orientation relative to first and second lateral portions of the sheet that extend in opposing directions from respective first and second radiused ends of the common center wall. The first set of rollers also form radiused edges on the first and second lateral portions. A second set of rollers is configured to form a channel rib longitudinally along each of the first and second lateral portions. A third set of rollers is configured to bend the first and second lateral portions simultaneously and equally to abut the first and second radiused edges with the respective first and second radiused ends of the common center wall to define adjacent tubes of the beam.

Abstract: A round bender is disclosed. The round bender may include a plurality of bending roll units disposed along a process line between a pair of bender frames so as to bend a straight shaped beam to have a curvature. Each of the plurality of bending roll units may include upper and lower bending rolls rotating between the pair of bender frames and may be adapted to bend the shaped beam to have the curvature when the shaped beam passes between the upper and lower bending rolls. A lower bending roll of a rearmost bending roll unit disposed on a rearmost part of the process line may be configured to be rotatable with reference to an upper bending roll of the rearmost bending roll unit so as to change a curvature radius of some portion of the shaped beam.

Abstract: A flexible but strong universal die is disclosed, that is flexible enough to be elastically deflected into different curvatures by actuating forces and moments, while being strong enough to support the die forces and moments that it has to apply to parts to form them to the shape corresponding to its shape. A design of the die and actuation locations that makes it easy to deflect it into different constant curvatures, as well as into shapes with gradients of curvature along the length of the die, and the use of these dies for stretch roll forming are disclosed.

Abstract: A pre-rounding element (14) is used in a rounding apparatus (4) for rounding can body blanks from sheet metal blanks. The lower element part (22) of the pre-rounding element (14) is displaceable by an actuation element (23). This allows the adjustment of the pre-rounding element even during operation of the rounding apparatus. Preferably a measurement of sheet metal blank properties takes place. The measurement may include a thickness measurement and/or a strength measurement of blanks. The pre-rounding element is controlled in dependency of the measurement result. This allows a constant rounding result even with varying sheet metal properties.

Abstract: The invention relates to a method for producing a bent orthodontic arch or a bent retaining arch for orthodontic treatment, comprising the bending of portions of a metal wire. The invention is characterised in that it comprises the use of an apparatus of the type intended for the production of springs, comprising bending tools and means allowing the continuous movement of the wire to be bent. The invention also relates to the device used to perform the aforementioned method, to the resulting orthodontic arch or retaining arch and to an orthodontic appliance comprising same.

Abstract: The pressures provided by several wheels or rollers on various members of a metal panel are controlled to produce a curved panel of desired radius with little or no distortion. Predetermined pressures are used to achieve the desired curvature and increased pressures provide smaller radii of curvature. For metal “U” panels pressure is preferably applied on two members. For seamed metal panels pressure is preferably applied on three members. Additional curvature may be obtained by use of a curving bar. Motors drive the wheels, which urge these panel members through the wheels, the wheels having a separation distance less than the original thickness of the metal. This results in the metal of those members being elongated, thereby curving the panel with little or no distortion. In exemplary embodiments curved panels may be formed at a rate of 22-25 feet per minute or at 40-55 feet per minute.

Abstract: The pressures provided by several wheels or rollers (18, 20, 22, 24, 30, 32) on various members of a metal panel are controlled to produce a curved panel of desired radius with little or no distortion. Predetermined pressures are used to achieve the desired curvature and increased pressures provide smaller radii of curvature. For metal “U” panels pressure is preferably applied on two members. For seamed metal panels pressure is preferably applied on three members. Additional curvature may be obtained by use of a curving bar (82). Motors (34, 36, 38) drive the wheels, which urge these panel members through the wheels, the wheels having a separation distance less than the original thickness of the metal. This results in the metal of those members being elongated, thereby curving the panel with little or no distortion. Repeatable results are also provided.

Abstract: A profiling arrangement for the longitudinal shaping of a metal band or starting profile into a profile or tube is provided, and includes a plurality of shaping stations 10 that are arranged in a line one behind the other and in each of which a group of roller shaping tools is assembled and are run through in succession by the metal band or starting profile, as well as with a machine substructure on which the shaping stations are mounted. In addition, on or next to the machine substructure, there are linear guides with driven carriages that can move in and against a direction of motion of the metal band or profile for the holding of tools, manipulators, and the like acting on the profile.

Abstract: A side looper comprises an entry guide for directing a longitudinally moving long product into an arcuate path, an exit guide for receiving the product exiting from the arcuate path, and inner and outer guide walls arranged between the entry and exit guides. The guide walls are adjustable between mutually spaced closed positions fixing the curvature of the arcuate path, and open positions allowing the curvature of the arcuate path to either increase or decrease.

Abstract: A method of forming includes applying a stretching force along a linear axis of a work piece and forming the work piece while the stretching force is applied.

Abstract: A method and a device are provided for the planar and spatial bending of rod-shaped components (2) having a longitudinal axis, such as pipes and profiles, including two roller systems A and B that are disposed behind each other along the longitudinal axis, wherein the component is driven by the roller system A and inserted into the roller system B, and is bent by a movement of the roller system B in a transverse direction to the longitudinal axis of the rod-shaped components (2). A device is also provided for the planar and spatial bending of rod-shaped components (2) having a longitudinal axis, such as pipes and profiles, including two roller systems A and B, wherein feed along the longitudinal axis can be effected via the roller system A, and the roller systems A, B are disposed in at least one first plane E1 in a displaceable manner relative to each other, wherein at least one of the roller systems A, B can be pivoted about the longitudinal axis.

Abstract: A decoiler for delivery of wire or rod feed stock to a downstream production machine from a pre-formed coil. The decoiler includes an extended length rotatable mandrel adapted to extend along the interior of the coil such that the mandrel supports loops of the coil in hanging and slidable relation along the mandrel. At least a first feed head is disposed adjacent to the proximal end of the mandrel. The first feed head is adapted to feed the wire or rod feed stock from a rear loop of the coil outwardly in a curved path to form a spiral feed loop having a diameter greater than the coil. A variable height guide element is disposed at a position below the first feed head. The variable height guide element engages and follows an interior of the spiral feed loop to change height with a change in diameter of the spiral feed loop and to provide an output signal for speed control of the first feed head to maintain the diameter of the spiral feed loop within predefined limits.

Abstract: An arc type blade transfer apparatus is disclosed. The apparatus includes a main body which is formed with a space through which an arc type blade passes, and a transfer roller which is rotatably mounted to the main body and is rotated to transfer the arc type blade. The transfer roller is formed in a truncated-conical shape including a small-diameter end, a large-diameter end and a tapered peripheral surface, and slantedly mounted with respect to a surface of the arc type blade so that the tapered peripheral surface of the transfer roller is in parallel contact with the surface of the arc type blade. Accordingly, the apparatus can transfer the arc type blade having an inner radius and an outer radius, transferring distances of which are different from each other, by one transfer roller, thereby simplifying a structure of the apparatus and accurately transferring the arc type blade.

Abstract: A roll-forming or bending machine is provided for forming an angled or rounded and simultaneously tapered hollow body or similar workpiece from a material blank. The machine has at least one tapered roll and at least one counter element, between which a forming pressure can be applied to the material blank. The one counter element has an elastic surface and is constructed as a bending table for supporting the material blanks, so that the one or more rolls apply forming pressure on the material blank on the bending table. The bending table is guided so that it can move in the longitudinal direction and can rotate about a rotational axis, and the rolls can move perpendicular to the longitudinal direction, allowing a change in the relative position of the roll and rotational axis of the bending table caused by a rotational movement of the bending table to be compensated.

Abstract: A computer controlled roll-forming apparatus is adapted to provide a repeating pattern of different longitudinal shapes to a continuous beam “on the fly” during the roll-forming process. A sweep station on the apparatus includes a primary bending roller tangentially engaging the continuous beam along the line level and an armature for biasing the continuous beam against the primary bending roller for a distance partially around a downstream side of the primary bending roller to form a sweep. Further, actuators adjustably move the armature at least partially around the downstream side of the primary bending roller between at least first and second positions for imparting multiple different longitudinal shapes into the continuous beam. In one form, the apparatus also includes a coordinated cut-off, so that when separated into bumper beam segments, the ends of the individual beam segments have a greater sweep than their center sections.

Abstract: The pressures provided by several wheels or rollers (18, 20, 22, 24, 30, 32) on various members of a metal panel are controlled to produce a curved panel of desired radius with little or no distortion. Predetermined pressures are used to achieve the desired curvature and increased pressures provide smaller radii of curvature. For metal “U” panels pressure is preferably applied on two members. For seamed metal panels pressure is preferably applied on three members. Additional curvature may be obtained by use of a curving bar (82). Motors (34, 36, 38) drive the wheels, which urge these panel members through the wheels, the wheels having a separation distance less than the original thickness of the metal. This results in the metal of those members being elongated, thereby curving the panel with little or no distortion. Repeatable results are also provided.

Abstract: A roll-forming or bending machine (1) is provided for forming an angled or rounded and simultaneously tapered hollow body or similar workpiece from a material blank. The roll-forming or bending machine (1) has at least one tapered roll (2) and at least one counter element, between which a forming pressure can be applied to the material blank. The one counter element has an elastic surface and is constructed as a bending table (3) for supporting the material blanks, so that the one or more rolls (2) apply the forming pressure on the material blank on the bending table (3). The bending table (3) is guided so that it can move in the longitudinal direction and can rotate about a rotational axis (5), and the one or more rolls can move perpendicular to the longitudinal direction, allowing a change in the relative position of the roll (2) and rotational axis (5) of the bending table (3) caused by a rotational movement of the bending table (3) to be compensated.

Abstract: The invention pertains to a device for the 3D free-form bending of profiles with arbitrary, but constant outside dimensions over the profile length, particularly hollow profiles, wherein the profile to be bent has a longitudinal axis and is moved through the through-opening-of a guide element adjoining the profile surface and a bending sleeve that is arranged downstream of the guide element referred to the feed direction and held in a carrier element in a feed direction that extends parallel to the longitudinal axis, namely by means of a feed unit that contains a rotary drive. The bending sleeve can be pivoted about an axis that extends perpendicular to the feed direction and displaced perpendicular to the longitudinal axis of the profile. When turning the profile about its longitudinal axis by means of the feed unit, the guide element and the bending sleeve can be turned with the profile.

Abstract: This invention provides a bending roll apparatus capable of preventing barrel-like deformation of a pipe occurring during a roll bending work and of manufacturing a small diameter elongated pipe. In an apparatus for manufacturing a pipe by pushing rolls to a core roll, feeding a metal sheet to their contact portions and performing a bending work, the bending roll apparatus comprises a core roll formed of a metal and a plurality of push rolls having a surface portion thereof formed of an elastic material and disposed around the core roll. The invention further provides, in a bending roll apparatus, a core roll formed of a metal, a plurality of push rolls formed of a metal and disposed around the core roll, and holding the core roll when a metal sheet is bent, and a guide belt formed of an elastic material, interposed between the core roll and each of the push rolls, contacting on a core roll surface on a side opposite to an entry side of the metal sheet and driven in synchronism with the core roll.

Abstract: A method and a device for the production of curved spring strip sections. A spring strip runs through a bending unit formed from three separate support points and a reverse bending unit, arranged in series, and formed from a fourth support point. Bent and reverse-bent spring strip sections are separated off from the spring strip in a separator unit. In order to achieve a compact construction for the device, the third support point of the bending unit and the fourth support point of the reverse bending unit are adjustable in position relative to the spring strip, by a controller with pre-set programs.

Abstract: Apparatus for forming an arch is architectural panels including a drive section and an arching section. Each of the drive section and arching section have at least one roller and cooperating follower with the rollers being adapted to engage the underside of the panel with a groove in the followers accepting side legs of the panel. In a preferred embodiment, two cooperating followers float along a common shaft in association with each roller.

Abstract: This invention provides a bending roll apparatus capable of preventing barrel-like deformation of a pipe occurring during a roll bending work and of manufacturing a small diameter elongated pipe. In an apparatus for manufacturing a pipe by pushing rolls to a core roll, feeding a metal sheet to their contact portions and performing a bending work, the bending roll apparatus comprises a core roll formed of a metal and a plurality of push rolls having a surface portion thereof formed of an elastic material and disposed around the core roll. The invention further provides, in a bending roll apparatus, a core roll formed of a metal, a plurality of push rolls formed of a metal and disposed around the core roll, and holding the core roll when a metal sheet is bent, and a guide belt formed of an elastic material, interposed between the core roll and each of the push rolls, contacting on a core roll surface on a side opposite to an entry side of the metal sheet and driven in synchronism with the core roll.

Abstract: A method for producing a bumper reinforcement having a hollow and a substantially rectangular cross sectional shape formed by the steps of providing a straight tubular member and forming a curved bumper reinforcement, continuously; wherein angle portions of the straight tubular member having the radius of curvature established in profiling corner portions of an inner die having the radius established in larger than the radius of the corner portions of the outer die are bulged in a range of relief spaces formed between the corresponding corner portions of the inner die and the outer die to prevent generation of the wrinkles particularly on the angle portions of the straight tubular member while being curved.

Abstract: A bent work is integrally formed at low cost by bending a belt-shaped thick steel material having an L-shaped cross-section so as to form a cylinder and by welding ends of the belt-shaped thick steel material to each other, the bent work being used as a bearing-receiving unit or the like.

Abstract: A roll bending die for bending metal into an arc with reinforcing ribs and tapered ends. The roll bending machine includes a body member being designed for being rotatably coupled to the roll bending machine whereby the body member selectively engages a pliable roller of the roll bending machine. The body member is designed for being rotated by the pliable roller when the pliable roller is rotated by the roll bending machine whereby the body member rolls the material into an arc when the material is placed between the body member and the pliable roller. The body member comprises a plurality of ridge portions outwardly extending from a perimeter face of the body member. The ridge portions are designed for pressing ribs into the material when the material is rolled between the body member and the pliable roller of the roll bending machine.

Abstract: According to the present invention, a method and an apparatus for rounding a sheet or plate blank in a rounding apparatus having rounding rolls is provided. A predetermined second part region of the blank is rounded after a predetermined first part region has been rounded. A feed direction of the blank for the rounding of the second part region is selected such that rounding in the second part region proceeds towards the previously rounded first part region.

Abstract: The bending device 25 comprises a positioning jig 10 having a clearance opening 8 formed therein for passing an elongate material 1, fixed to a device body, and a movable bending jig 28 having a clearance opening 30 formed therein for passing the material 1, provided at a position to which the material 1 is supplied from the positioning jig 10. The bending jig 28 is attached to a dome portion 26 which is part of a rotating member 24 rotated along a spherical surface having the center on the material 1 passing through the positioning jig 10. As the rotating member 24 rotates along the spherical surface, the bending jig 28 moves along the spherical surface. As a result, the material 1 is bent by being supplied with its supply direction changed from the positioning jig 10.

Abstract: A method for producing a bumper reinforcement having a hollow and a substantially rectangular cross sectional shape formed by the steps of providing a straight tubular member and forming a curved bumper reinforcement, continuously; wherein angle portions of the straight tubular member having the radius of curvature established in profiling corner portions of an inner die having the radius established in larger than the radius of the corner portions of the outer die are bulged in a range of relief spaces formed between the corresponding corner portions of the inner die and the outer die to prevent generation of the wrinkles particularly on the angle portions of the straight tubular member while being curved.

Abstract: In a long member bending apparatus having a bending head and a material supply unit, the bending head is composed of a base plate having a guide pipe, which includes a guide hole for passing a long member, at the center thereof, a movable plate having a die, which applies a bending force to the long member supplied from the guide pipe forward, disposed at the center thereof, and six extendable units including hydraulic cylinders interposed between the base plate and the movable plate and universal joints disposed to both the ends of each hydraulic cylinder, thereby a parallel link mechanism is arranged that executes a motion of a total of six degrees of freedom including three degrees of freedom of translational movement and three degrees of freedom of rotation by expanding and contracting the hydraulic cylinders to set the position (distance, offset), inclination, and the like of the movable plate with respect to the base plate.

Abstract: On a two-roll rounding machine, in addition to a compressively elastic guide roll and a compressively rigid rounding roll, one or more compressively elastic rolls are provided which have both a rounding function and a supporting function for the rounding roll. These additional rolls may also be supported by a back-up roll. The result is a rounding machine that has very good rounding characteristics even at small rounding diameters.

Abstract: The bending device 25 comprises a positioning jig 10 having a clearance opening 8 formed therein for passing an elongate material 1, fixed to a device body, and a movable bending jig 28 having a clearance opening 30 formed therein for passing the material 1, provided at a position to which the material 1 is supplied from the positioning jig 10. The bending jig 28 is attached to a dome portion 26 which is part of a rotating member 24 rotated along a spherical surface having the center on the material 1 passing through the positioning jig 10. As the rotating member 24 rotates along the spherical surface, the bending jig 28 moves along the spherical surface. As a result, the material 1 is bent by being supplied with its supply direction changed from the positioning jig 10.

Abstract: A machine for bending sections (2) having a longitudinal axis (3) and a constant cross section along the longitudinal axis (3) feeds the sections (2) longitudinally in a first direction (D1), and has a first and a second annular die (11, 12); an assembly (15) connected to the second annular die (12) and movable in a plane perpendicular to the first direction (D1) to move the second annular die (12) into a number of operating positions with respect to the first annular die (11) to bend the sections (2); and a joint (22; 39) connecting the first and the second annular die (11, 12), and which forces the second annular die (12) to assume a given position with respect to the first annular die (11) for each position assumed by the assembly (15).

Abstract: An apparatus adapted to form curved beam sections, such as a brake shoe, includes a rollformer, a cut-off device, and a re-former or sweeping device. The rollformer includes rollers constructed and arranged to rollform the sheet material into an elongated linear beam, where the beam has a T-shaped cross-section. The cut-off device cuts the arcuately-shaped beam into segments that are about 9 to 12 inches long. The sweep device is positioned in line with the rollformer (or off-line as a secondary operation) and is adapted to form the beam into a tightly-radiused longitudinal shape, such as about 100 mm radius, where the support flange and center web form an arcuate crescent shape. In an alternative form, the apparatus also has a re-forming device configured to reshape the segments so that the beam section is very accurately formed. However, it is contemplated that, depending upon the arcuately shaped beam section desired, a re-former may not be required.

Abstract: In a long member bending apparatus having a bending head and a material supply unit, the bending head is composed of a base plate having a guide pipe, which includes a guide hole for passing a long member, at the center thereof, a movable plate having a die, which applies a bending force to the long member supplied from the guide pipe forward, disposed at the center thereof, and six extendable units including hydraulic cylinders interposed between the base plate and the movable plate and universal joints disposed to both the ends of each hydraulic cylinder, thereby a parallel link mechanism is arranged that executes a motion of a total of six degrees of freedom including three degrees of freedom of translational movement and three degrees of freedom of rotation by expanding and contracting the hydraulic cylinders to set the position (distance, offset), inclination, and the like of the movable plate with respect to the base plate.

Abstract: In a method and a device for producing curved lengths of spring band steel in order to produce precisely toleranced, dimensionally stable bending radii, the spring band steel (10) pass through a bending unit (20), which is comprised of three support points (23-25) spaced apart from one another, and passes through a reverse bending unit (22), which is disposed after the bending unit (20) in the advancing direction of the spring band steel (10) and is comprised of a fourth support point (32), and in a cutting unit (21), the curved and recurved lengths of spring band steel (11) are cut from the spring band steel (10). The central support point (24) of the bending unit (20) and the fourth support point (32) of the reverse bending unit (22) are embodied so that they can be moved and are controlled in their advancing in relation to the spring band steel (10) by means of a numerical control unit (20) in accordance with predetermined programs (FIG. 1).

Abstract: A machine for bending pipes (2; 63; 78) sections or similar of a given section (S1; S2;, S3) has a guide device (6) having a longitudinal axis (9) for guiding the pipes (2; 63; 78) in a feed direction (D1) parallel to the axis (9); and a bending member (7) movable with respect to the guide device (6) in a plane (P1) perpendicular to the feed direction (D1), and having an annular guide (50), which has a passage section (45; 61; 76) for the pipes (2; 63; 78) substantially equal to the section (S1; S2; S3) of the pipes (2; 63; 78) and is defined by rollers (40; 52; 82; 67) rotating about respective axes (41; 53; 83; 68) lying in a plane coplanar with the passage section (45; 61; 76).