Abstract: An apparatus for bending pipes comprising a bending unit and a bending finger as well as with an infeed unit and a unit for holding and moving the pipe that is to be bent. The bending unit comprises two symmetrically located bending dies, each of which has an annular groove open on the outside, between which the pipe is inserted during the bending operation. The bending finger is pivoted on a pivoted support and the axes of rotation of the support and the bending finger are parallel to each other.

Abstract: A tube bender including a mandrel component having an arcuately curved recess of at least 180 degrees is disclosed. An anchor connected to the mandrel for securing a tube in the recess. A tube former is rotatably connected to the mandrel. The former has a tube engaging surface for engaging a surface of a tube disposed in and in engagement with the recess. The former and recess are positioned to engage opposite sides of a positioned tube. The mandrel and former are relatively rotatable about an axis that is coaxial with a groove axis. A mandrel handle is connected to the mandrel and a tube former handle is connected to the former. The former handle is rotatable between 90 degree and 180 degree bend positions relative to the former selectively to provide good leverage for 90 degree bends and over 90 degree bends.

Abstract: An apparatus for bending a cutting blade rule includes: a guide having a guide passage formed therein for transferring said cutting blade rule in a lengthwise direction; a first rotary body located at an upper position adjacently to a head of said guide; a second rotary body located at a lower position adjacently to a head of said guide and oppositely to said upper position; a first bending member supported by a hole formed on said first rotary body; a second bending member supported by a hole formed on said second rotary body, said second bending member being opposite to said first bending member in a substantial perpendicular direction to said lengthwise direction; a drive means for driving said first and second rotary bodies; and linear drive means for linearly moving said first and second bending members respectively.

Abstract: A wire bending device includes an upright frame and a wire feed hopper for dispensing wire rods. A wire bending section is mounted on the frame, and at least one transport arm is pivotally mounted on the frame, the transport arm operative to transport wire rods from the hopper to the wire bending section. The wire bending section includes a wire securernent device mounted on the frame, the rotatable wire securement device operative to secure one end of a wire rod and rotate the wire rod about its longitudinal central axis and a wire bending unit movably mounted on this frame. The wire bending unit includes a wire bend head aligned with the center longitudinal axis of the rotatable wire securement device, the wire bending unit adapted to move on the frame such that the wire bend head remains aligned with the center longitudinal axis of the rotatable wire securement device.

Abstract: A cylindrical sleeve and a reaction force receiver are fixed on a ceiling plate so as to form a passage along which a rod-like member is placeable and bent by a bending pin rotating about an output shaft driven by an electric motor through a speed-reduction gear train. A wall is formed in parallel with a front end surface of the reaction force receiver in an opposed relationship with each other. A plurality of surfaces, formed on the front end of the reaction force receiver, are inclined with each other. The rod-like member is supported along one of the plurality of surfaces.

Abstract: An apparatus (1) serves to bend a hollow section (2) with which a spacer frame for insulating glass sheets is to be manufactured. For this purpose, the hollow section (2) can already be filled with drying agent during bending or, however, still be empty. The bending apparatus also has, in addition to a bending tool (11) and an abutment (13), a hold-down clamp (17) for impinging upon a side band (6) and/or a flange (10) whose cross section continues internally, and parallel thereto a support (16), so that the external proportions of the hollow section (2) remain precisely preserved even in the bending area (4). In order to support thereby the bending motion and the deformation, as well as the flow of the material of the hollow section (2) and its side bands (6)/flanges (10), the hold-down clamp (17) is subdivided and has an element (171) co-rotatable with the bending motion in the bending direction, which supports the change of direction of the side band (6)/flange (10) during the bending operation.

Abstract: The present invention relates generally to bending a workpiece to form a desired configuration and, in particular, to a method and apparatus for forming bends "out of sequence," i.e., in a time sequence different from the spatial sequence of the bends on the workpiece. The apparatus of the present invention include a bending system for bending a workpiece and a positioning system for positioning the workpiece relative to a bending region so that bends can be formed in various locations across the bending region. By virtue of the disclosed structures, a series of bends can be formed on a workpiece at various locations within the bending region. Bends can be formed out sequence and without advancing the workpiece relative to the bending region.

Abstract: An electric cutting and bending tool that transfers the rotation of an electric motor to an output shaft after slowing the rotation through a gear train. An eccentric cam is provided integrally with the output shaft and drives against a pivot plate. The pivot shaft has one end provided with a cam roller in rolling contact with the cam, another end provided with a movable blade and an intermediate portion provided with a pivot pin. A bending roller is provided on the cam to bend a reinforcing rod about a center pin to a desired angle between 0-180.degree..

Abstract: A method of bending a bar into a sinusoidal configuration. The method employs a bending machine comprising a table having a fixed central post defining a slot for receipt of the bar, a turntable positioned rotatably around the post, a pair of bending pins on the turntable, and a pair of abutment pins on the table radially outwardly of the turntable. With the front end of the bar clamped fixedly and the bending machine positioned at the rear end of the bar, the turntable is rotated to place a compound bend in the bar utilizing a first bending pin and a first abutment pin whereafter the bending machine is moved forwardly along the bar to a first indexed location at which the turntable is rotated in an opposite direction to place a reverse compound bend in the bar utilizing the second bending pin and the second abutment pin.

Abstract: A cutter/bender apparatus is provided for selectively cutting and bending a workpiece. The bending member includes a bending pin actuated by a hydraulic cylinder that moves the bending pin into and out of engagement with the workpiece to clamp the workpiece against a support plate. When clamped, another hydraulic cylinder lifts a movable bending member toward the workpiece, bending the workpiece about the bending pin in the process. The cutting member includes a fixed cutting member and a movable cutting member mounted in side to side abutment. The cutting members include a slot that extends laterally therethrough in which the workpiece to be cut is placed. The hydraulic cylinder that operates the movable bending member also provides motion for the movable cutting member. As the movable cutting member moves, it moves the aligned slots of the individual cutting members out of alignment, shearing the workpiece in the process.

Abstract: Both a method and apparatus are disclosed for forming a bend in an elongated member, such as a tube, at a predetermined target angle. The elongated member is first bent to an angle equal to the target angle plus a predetermined increment. The elongated member is then returned to the target angle and a value representative of the force necessary to maintain the elongated member at the target angle is inputted into a central processor. This inputted value is then compared with a threshold value and, in the event that the inputted value exceeds the threshold value, the predetermined increment is incremented and the above steps are repeated until the inputted value is less than the threshold value. An apparatus for performing the method of the present invention is also disclosed.

Abstract: A bending tool for bending rods or like items, and including two handles and three bending posts. Two of the posts move with the handle, and the third post is a center post which is selectively rotatable to positions for determining the bend in the item. A pin interconnects the handle and the center post to hold the latter in its selected position during the bending process.

Abstract: A mechanism to prevent a handle from rotating out of the plane of bending during the bending of a tube. This mechanism is used in a compression bending process in conjunction with a hinged handle. The mechanism prevents the handle from rotating about the hinged point during the bending process. The mechanism adds rigidity to the bending device and is thus responsible for limiting excess deforming of the work piece.

Abstract: The high force rebar bending machine comprises a frame which carries a bending die. An arm is pivoted to swing around the bending die with a bending roller thereon. Rebar engaged by the bending roller is bent around the die as the arm swings. A fluid cylinder has its piston connected to a cable. The cable is wrapped around a large drive wheel which, in turn, is connected to the arm so that bending force is multiplied. The entire structure is sufficiently compact and light to be portable for use at a job site.

Abstract: A pipe bending machine with a bending assembly (1) and a support arm (2), pivotedly supported swingingly relative to the bending assembly through a pivot (6) that is slidably supported along a stem (7) on the axis passing through the center of rotation of the matrix and the center of swinging of the countermatrix assembly (the "zero"), so as to automatically position and axis of the pipe on the zero.

Abstract: In a pipe bending apparatus, a chuck unit is movable along a straight pipe for holding it in position between a pair of bending units which are also movable along the pipe. The apparatus can bend even a long metal pipe having a small diameter accurately at a desired angle in any of a variety of directions, while allowing it to be quickly set for any bending job.

Abstract: A method and apparatus for mounting, inspecting, and adjusting probe card needles used during testing of fabricated circuits. A build wafer, comprised of build and scrub target patterns, is used to mount and re-work probe needle assemblies onto a probe card. Each build target is composed of a hard material that is resistant to probe needle scratching, and is offset a preset distance from the position of the bonding pads on the actual wafer to be tested. Each scrub target is composed of a soft material that is easily disturbed by the probe needle's scrubbing action. By counting the number of lines broken or cut by a probe needle's scrub mark, the approximate length and width of the scrub mark may be ascertained. An adjustment tool is designed to fit snugly around the untapered, thickest portion of the probe needle. The tool is rotated along the axis of the probe needle shaft, allowing the technician to "tweak" the probe needle either up or down.

Abstract: A portable pneumatic rebar bending device has a base portion, a pivoting portion, and a pneumatic cylinder connecting and operable to pivot the pivoting portion with respect to the base portion. The axis of pivot includes a radiused wheel having a shallow "V" shaped slot about which the radius of curvature of the rebar is formed. The radiused wheel can be, where necessary, removed from the pivoting members where the required bend is so extreme that the device would otherwise be trapped. A pair of handles facilitates manual positioning and carriage. A weak spring acts to reset the pivoting member with respect to the base member once the pneumatically operated cylinder is de-pressured. The weak spring prevents injury on closure, since the presence of a hand or finger is more that adequate to prevent the force of the spring from acting to close the two members. An adjustment is provided to enable a variety of sizes of rebar to be used with the device of the present invention.

Abstract: A rebar fabricating machine is provided that is capable of processing either straight rod stock material or coil stock material. The rebar fabricating machine comprises a main cabinet, a horizontal power driven straightening module mounted adjacent to the upstream end of the main cabinet, a main drive module, a vertical straightening module, an encoder roll, a shear device and a bending head all mounted on the interior of the main cabinet. The main drive module includes a plurality of upper rolls each having a hydraulic cylinder attached thereto and a plurality of lower driven rolls driven by a single drive motor. The vertical straightening module includes a plurality of adjustable upper and lower straightening rolls. The horizontal straightening module is pivotally mounted on a base so that the horizontal straightening module can be selectively removed from the path of travel of the stock material.

Abstract: A hand operated bending apparatus uses a lever arm which acts through a compound lever to increase the applied force. A pin, which mates with a number of holes at various distances along the compound lever linkage, permits changing the lever ratio readily. A bar extending outward from a forming die is slideably enclosed by a slide lock, which can wedge against the bar to lock the slide lock to the slide bar. The slide lock provides the pivot point for the operating lever arm to permit resetting the apparatus after a bend is made to allow bending metal stock by a number of successive steps with little time penalty.

Abstract: A method of manufacture of a hollow stabilizer for automobiles which uses a heat-finished seamless steel pipe 20 as a material, comprising an inner surface and/or an outer surface of a part corresponding to a bending R portion A-B of the steel pipe 20 is polished to remove defects of the surface of the steel pipe, and after the above surface roughness is made less than Rmax 50 .mu.m, the part corresponding to the above bending R portion is previously formed an ellipse in section, and then the section after bending process accesses to a true circle to alleviate stress concentration of the bending part.

Abstract: A pipe bending device comprising a movable unit mounted on a bed in a manner to move longitudinally of the bed. The movable unit carries a twisting motor, a bending/twisting motor, and a support plate projecting upright. A pipe retaining unit is mounted on the projecting end portion of the support plate for retaining a pipe to be worked and is rotated by a twisting plate by a predetermined angle within 360 degrees on the axis of the retained pipe. A bending roller unit is mounted on the twisting plate for bending the pipe, which is held by the twisting plate, by a predetermined angle in a plane normal to the twisting plate. A first rotation transmitting train is arranged on one side of the support plate for transmitting the rotation of the twisting motor to the twisting plate. A second rotation transmitting train is arranged on the other side of the support plate for transmitting the rotation of the bending/twisting motor to the bending roller unit.

Abstract: Bending assembly of a bending machine (13), which can be employed to make upstream or downstream, clockwise or anticlockwise, bends of up to 180.degree. and more, on a bundle of bars (14) stacked on each other and lying on a plane substantially perpendicular to a working surface (15), the bending assembly (10) comprising an abutment plate (16) with two opposed abutment pins (17) and a rotary bending plate (11) coaxial with, and external to, the abutment plate (16) and including a bending pin (12), the abutment pins (17) and bending pin (12) having their axes substantially at a right angle to the working surface (15), the abutment plate (16) being able to rotate on its own perpendicular axis and including the two diametrically opposed abutment pins (17) with a space between those two abutment pins (17) at least equal to the diameter of the bars forming the bundle (14) of bars.

Abstract: A remotely positionable bending apparatus includes a support platform with a mandrel mounted to a front surface thereof and a bending arm pivotally connected between the mandrel and support platform. The outer end of the bending arm rotates around the upper end of the mandrel to bend a rod into a generally inverted U-shape. A clamping apparatus is operably mounted on the platform adjacent the mandrel and includes an actuator which is operated by movement of the bending arm to clamp and release a detector rod in a retained position against the mandrel. Preferably, the actuator includes a shaft which is placed under a biasing force to urge the shaft into a clamped position, with a pivotable lever connected thereto actuatable to overcome the biasing force and release a detector rod from the clamped position. The actuator lever is located in the pivotal path of the bending arm, such that movement of the bending arm to a retracted position disengages the clamping apparatus from the detector rod.

Abstract: The pipe bending machine comprises a rotatable bending template (14) and a pivot arm (21) pivotable about the axis of the bending template and supporting a clamping jaw (22). In order to be able to perform rightward bending as well as leftward bendings of a pipe (27), the bending template (14) consists of two template parts (15,16) configured for different bending directions. The clamping jaw (22) also consists of jaw parts (23,24) for different bending directions. On both sides of the bending head, slide rails (32,33) are arranged.

Abstract: An apparatus for bending a band-shaped work, the apparatus including a stationary cylinder having at least a pair of slits on diametrically opposite sides thereof, the slits providing a passageway in which the work is inserted through the slits, a rotary sleeve accepting the stationary cylinder with a gap interposed therebetween, the rotary sleeve having a first opening and a second opening on diametrically opposite sides thereof, a first driving means for feeding the work passed through the passageway in the stationary cylinder and the first and second openings of the rotary sleeve, and a second driving means for rotating the rotary sleeve by a predetermined amount while the movement of the work is stopped so as to bend the work between the stationary cylinder and the rotary sleeve.

Abstract: A cam action surgical rod bender includes a locking assembly which locks a bending knob in place. The rod bender includes a knee lever configuration for keeping the bending knob still, wherein a pin is moved downwardly along a channelled cam surface to provide stability when locking the bending knob in place against the round support plate at the hinge portion of the rod bender.

Abstract: A heat exchanger is disclosed, which comprises:a plurality of tubes each having a U-shaped portion and arranged in a plurality of parallel bending planes, each bending plane containing a plurality of tubes of the same nominal outer diameter and of differing bending radius, the variation of the outer diameter of the tubes in at least one of the bending planes measured in a direction perpendicular to the bending planes being at most 0.1 mm; andan antivibration bar disposed between two of the bending planes.

Abstract: A pipe bender 100 comprises a base 111, a former 132 on the base and having a former surface extending angularly at a fixed radius about a bending axis 114. The former surface is provided to engage a length of pipe 134 to be bent to conform to at least a portion of the length of the former surface. A bending arm 113 is pivotally mounted on the base 111 for pivoting movement about the axis 114. A bending assembly 115 is mounted on the arm 113 and includes two deforming rollers 122, 123 rotatably mounted for movement about an axis which is parallel to the bending axis 114 and spaced radially outwardly of the bending surface. The rollers 122, 123 are adapted to engage the length of pipe 134 to cause bending thereof as it is moved angularly about the axis 114.

Abstract: Method to carry out bends of a bundle (13) of bars having a diameter up to 32 mm.

Abstract: A device for generating curved pipe portions (38, 40) bent alternately in opposite senses in a continuously supplied linear pipe (18), particularly for generating a pipe coil, comprises a machine table provided with two bending rolls (12, 13) having rotational axes (15, 16) extending at a fixed mutual distance and parallel to each other. The bending rolls (12, 13) have their peripheries formed with grooves for receiving the pipe (18) which are adapted to the cross-section of the pipe (18). Further, the device is provided with a bending drive. One bending roll has a rotational axis fixed in position relative to the machine table whereas the other bending roll is pivotable by said bending drive about the bending roll having the fixed rotationai axis, thereby bending a curved pipe portion (38, 40) of the pipe (18).

Abstract: An automatic reinforced bar bending apparatus comprising a dispensing machine, a feeding machine, and a bending machine is provided. The apparatus is operated in such a manner that the dispensing machine dispenses from a large number of reinforced bars a predetermined quantity and delivers the same to conveying arms of the feeding machine in sequence. A number of toothed wheels and driving chains of the feeding machine smooth and transfer the reinforced bars to the bending machine for bending, whereby multiple reinforced bars are continuously bent into square frames with reduced time and labor. Before the reinforced bars are conveyed to the bending machine, they are also accurately counted.

Abstract: A straight rod stock processor and method for use thereof which incorporates the employment of a rod stock loader to effect automatic shakeout of a piece of straight rod stock in pulling the same from a pre-load bundle of infeed stock and delivery to a set of secondary rod stock compression rollers interposed between the rod stock loader and a stirrup bender just forward of the stirrup bender head on the infeed side thereof so that essentially the entire length of an infed rod stock piece may be thereby positioned and controlled in delivery to the stirrup bender head for processing thus substantially reducing labor and waste and handling costs per ton which are otherwise normally associated with the processing of straight rod stock lengths through a stirrup bender.

Abstract: A tube bending fixture having a plurality of tube bending tools, a pedestal for each tube bending tool, a grid plate for supporting each pedestal, and a grid plate support for supporting the grid plates in a predetermined arrangement. The fixture is built from a simulation program of tool selection, tool location and bending sequence. The simulation program is entered into a computer for viewing to insure that the tools are properly selected and properly located to permit operation in the desired sequence without interference. The computer will output a list of the tools needed and a list of coordinates to establish tool location. The bending tools have clamp rolls which are relatively movable between open and closed positions, and when closed define an arcuate groove. A bending roll is provided for bending a tube around the groove.

Abstract: This invention is an apparatus for straightening handhold safety appliances located on the side of rail cars.

Abstract: Bending-shaping machine for sections with a bending unit (12) located downstream of an assembly (14) that draws and/or straightens sections (15), a shearing unit (11) being interposed, in which machine a drawing unit (13) is comprised downstream of the bending unit (12) and on the same axis as the section (15) and has a first normal working position (13N) and a second downwardly retracted position (13S), the bending unit (12) having a third raised working position (12A) with a section (15) positioned above the shearing unit (11) and above the assembly 14) that draws and/or straightens sections (15).

Abstract: Tube bending apparatus comprising a lower support carrying a mandrel having a bending groove providing a bend axis, and an upper support mounted on the lower support for rotation about the bend axis and carrying a forming member for urging a tube between the mandrel and forming member into the bending groove on rotation of the upper support relative to the lower support. The upper support is adapted to be rotated relative to the lower support through a drive shaft arrangement extending downwardly from the lower support and coupled with a drive unit having an output coupling coaxial with the drive shaft and transverse to the axis of the drive motor of the drive unit. A stand supports the bending apparatus and drive unit relative to an underlying support surface during operation of the bending apparatus.

Abstract: A bending device for forming a blanking tool of a die cutter used for cutting folding carton blanks. The bending device includes a support member defining a planar work surface, an axle member defining a longitudinal axis of rotation and orientated for rotation about said axis in a plane passing through said axis and perpendicular to said work surface, locator pins on said support member defining a plurality of bending stations and cooperable with said axle member to position said axle member at one of said bending stations during a bending operation; mounting arms for mounting said axle member on said support member to permit movement of said axle member to any one of said bending stations; and a roller mounted eccentrically at the lower end of said axle member and defining a bending axis parallel to and spaced from said rotational axis. When the axle member is positioned at a bending station and rotated a workpiece located between the roller and locator pin is bent to a desired angle.

Abstract: Plant and method to select and bend bars for building work, which is suitable to select and bend simultaneously in a substantially identical manner a plurality of bars, starting with substantially identical bars, the plant comprising at least one store, a first traversing roller conveyor, a shears for shearing to size, at least one movable arm to engage and position bars lengthwise and a supporting bench:the first traversing roller conveyor (17) comprising means to butt a bundle of bars (14) by means of an abutment face (18),fork means (20) for the positioning and vertical alignment of the bundle of bars (14) being included between the first traversing roller conveyor (17) and the shears (39),the movable engagement and positioning arm (31) including in its lower portion a movable engagement gripper (34) and cooperating with the abutment face (18), a relative vertical movement taking place between the movable engagement arm (31) and the shears (39) during the transient time of the arm (31) passing the shears (

Abstract: Briefly, and in accordance with the foregoing, the present invention comprises a roller assembly for use with a bending apparatus for bending conduit and the like. The bending apparatus includes a frame, a bending shoe associated with the frame and a drive device for controllably driving the bending shoe. The roller assembly provides a roller which pivotably adjusts to an outside surface of the workpiece to accommodate variations in the workpiece while it is being bent during a rolling operation. The roller assembly includes a shaft attached and supported by the frame, two pivot segments and two roller dies. The pivot segments are positioned along and spaced apart on the shaft and each has an arcuate surface in a facing orientation with the other pivot segment. The roller dies have facing ends and base ends and a pivot socket formed in the base end. The pivot socket is sized and dimensioned for cooperatively mating with the arcuate surface of the pivot segment.

Abstract: Apparatus for bending pipes, particularly plastic or composite pipes, includes a chucking fixture for anchoring the pipes near the bending region, a bending template, the profile of which is made to fit the pipe cross section, and a bending cylinder which, in turn, has a profile that is made to fit the pipe cross section and is supported by a provided lever which, during a pivoting motion of the bending cylinder, is moved on a graduated circle about the bending template and runs concentrically to the surface of the bending template. In order to achieve easy manipulation, the apparatus is constructed as a manually operated device and parts of the apparatus are disposed on a mounting plate which is provided with a hand lever as a back-stop and which has a pivoted lever in the form of a hand lever for the bending cylinder.

Abstract: A portable bending machine has a boxlike casing with an internal support structure fastened to its top plate only. A reinforcing steel rod is bent around a fulcrum roll by a bending roll revolving about the fulcrum axis, while an adjustable abutment on the top plate of the casing bears against the work. The bending roll, the fulcrum roll, the abutment, and a drive mechanism for revolving the bending roll about the fulcrum roll are all mounted, either directly or via the internal support structure, solely to the top plate of the casing. Consequently, all but the top plate of the casing walls can be made thinner than heretofore.

Abstract: Assembly to bend bundles of rods consisting of two or more rods, which are positioned and bent, one upon another, substantially in a position normal to a supporting bench (15) and are bent into the same shape at one and the same time, the assembly advantageously having the purpose of bending the bundle of rods (14) in four directions so as to produce any desired closed figure therewith, retaining means (12) with grippers (20) able to move vertically in guides (21) and to be retracted downwards being included upstream and downstream of the bending assembly (10) and substantially on the same axis as the bundle of rods (14).

Abstract: A method of applying various kinds of bending working accurately to a metal tube of a small diameter to be worked, which comprises seizing one end of a metal tube to be worked and setting a working direction, transferring the tube to a working position, applying predetermined bending by paired roller means, transferring the same to the succeeding step and applying the same working. Such operations are repeated as required. The apparatus employed for practicing the method comprises a chuck, a receiving roller and a bending roller and a control means for controlling the operation of them. Various kinds of bending working can be applied efficiently and accurately to a metal tube of a small diameter to be worked by a simple method and with an apparatus of a simple structure.

Abstract: Bending-shaping machine for sections (29) in which a drawing unit (10) located downstream of a bending unit (35) and on the same axis as the section (29) takes up not only a retracted position (10B) and a normal working position (10L) but also a high position (10A) to lift the section (129) above an abutment roll (12). Method for the automatic bending of the trailing end of sections (29) in a bending-shaping machine as above described, in which so as to invert the orientation of a bend (26) when making bends (26) in the trailing end (C) of a section (129), the drawing unit (10) moves from its working position (10L) to its high position (10A) and returns to its working position (10L) while a bending disk (11) is displaced sideways (from position 11S to position 11D or viceversa) by passing under the section (129) and thus re-positioning the abutment roll (12) in relation to the section (129).

Abstract: Apparatus for bending rod-shaped material to form concrete-reinforcement elements, having a frame (3) for supporting a material feed device (4) and having a bearer for bending members, which bearer is mounted on the frame so as to be rotatable about the axis of feed, is adjustable relative to the frame and is constructed as a material supporting table (10) which is adjustable in a predetermined angular position relative to the frame, on which material supporting table a cutting device (8) is provided upstream of the bending members (15,16) in the material feed direction for cutting off the rod-shaped material from the line of material after the bending operation.

Abstract: Apparatus for bending steel bars to form concrete reinforcement elements, having a device (3, 4; 18) for feeding bars to a transfer device (8), by means of which in each case one group of bars can be inserted in two bending frames or stations, (2, 2'), each having members (11, 12) for bending the bars in transverse direction the transfer device having at least one pair of operation-controlled gripper tongs (10) which can be swivelled from a first position, in which they receive a plurality of bars from the bar feed device, and clamp the bars, into a second position, in which they insert the bars into the gap between the bending members.

Abstract: Shears unit positioned immediately upstream of a bending assembly (13) comprising a bending disk (19) and support means (15) to change the reciprocal positions of a contrast roll (20) and a section or sections (11) in a bending-shaping machine, the shears unit including a stationary blade support (33) positioned astride and above a part of the bending disk (19), the blade support (33) bearing and positioning a laterally shearing stationary blade (34), which cooperates with a laterally displaceable blade holder (30).

Abstract: An automatic frame bending machine is disclosed for bending off rod steel or steel bands, and a process and device for producing spring mattresses. The purpose of the invention is to design a frame bending machine with which frames of the most diverse types can be automatically produced without risk of material losses or of deforming the frames. The frame bending machine should also be easy to integrate in an assembly line. For this purpose, a spool is provided, after which the steel passes through a wire straightener composed of a rotor and rollers, measurement and traction rollers linked to the bending device, cutting means and a centering metal sheet. Hydraulic motors controlled by a microprocessor from a control panel are provided for driving and bending.

Abstract: A substantially rectangular metal blank is formed about a mandrel (76) to provide a very open shell (28) having a pair of axially extending lips (20c,20t) separated by a distance sufficient to permit a prewound spool (10) or other product to be inserted radially, laterally into the shell prior to closing the shell about the spool or other product.