Abstract: A method of manufacturing a wheel rim for a motor vehicle comprises the steps of a strip of aluminum alloy sheet material having a predetermined cross-section suitable for forming into a wheel rim by extrusion molding, pressing the strip step-by-step lengthwise by an upper mold and a lower mold having complimentary profiles for causing the strip to have predetermined profiles as a hoop with a formed gap between the both ends, welding the gap to form an unfinished wheel rim, and annealing, shaping, heat treating, and polishing the unfinished wheel rim to form a finished wheel rim.

Abstract: The invention concerns a machine for bending and twisting flat metal wire for producing a motor vehicle wiper arm. It comprises means (3) feeding and maintaining the wire (2), and at least means (51) capable of gripping and releasing the wire (2) in output of the feeding and maintaining means (3), and which is, under the action of driving means associated with transmission means, mobile in several directions, rotating (V) about the axis (X) moving the wire (2), and moving, in one direction or another, in a direction (P) perpendicular to the surfaces (20) of the wire (2).

Abstract: The invention concerns a wire bending device comprising a bending head (3) bearing two bending tools (30, 31) between which the wire to be bent (2) is passed, each of the tools being capable of being driven in rotation concentrically around the other which is then fixed It comprises: mechanical means (1) for moving the wire to be bent (2) axially in one direction or another (XA, XB); mechanical mans for driving the tools (30, 31) in rotation, in the two directions (YA, YB), about an axis (34) parallel to those (32, 33) of the tools (30, 31); mechanical means for moving in the two directions (ZA, ZB) the tools (30, 31) in a plane perpendicular to the axis (34) about which the latter can rotate; and calculating and controlling means for managing simultaneously the operation of the mechanical means so that the movements generated by the latter are superimposed.

Abstract: A working apparatus for band blade provided with a bender for bending a band blade into a predetermined configuration, and a cutter cutting the band blade. The cutter is positioned successively after the bender. And, a working method for band blade having a bending process in which a band blade is bent into a predetermined configuration, and a cutting process in which the band blade is cut. The cutting process is successively conducted after the bending process is previously conducted.

Abstract: There is provided means for bending a small diameter metal pipe capable of accurately finishing all of bending operation by a single bender even when a linear length of a pipe distal end portion is short. A method of bending a small diameter metal pipe for chucking one end of the small diameter metal pipe to be worked, setting a working direction and carrying out bending operation from a front end side of other end to the one end, characterized in that bending operation of one step or several steps is carried out previously from a pipe distal end of the one end, a portion subjected to the bending operation is chucked and bending operation is successively carried out from the front end side of the other end toward the one end subjected to the bending operation under the state.

Abstract: A device for forming a cutting blade for prints is disclosed. The device of this invention forms cutting blades by appropriately bending and cutting a metal strip into desired blades through integrated work regardless of a difference in the size of metal strips. The device is also provided with changeable jigs, thus being capable of forming bridge notches having different intervals, widths and configurations. The device has one vertically movable bending pin and one swing cutter. The bending pin is capable of quickly bending a metal strip into a desired configuration, while the swing cutter finely and precisely cuts the metal strip into cutting blades. The device also quickly produces high precision cutting blades, thus improving productivity and reducing the cost of the cutting blades.

Abstract: The present invention provides an unified folding system for processing in one work line all working processes needed in cutting and folding a cutting blade in a shape suitable to a sheet matter molding. A cutting blade supplied from a transferring unit of the cutting blade is cut in a length suitable to a sheet matter molding configuration in a cutting molding unit adjacent thereto, simultaneously the cutting tip used in cutting is transferred together with the cutting blade to a folding device side through a guide member set which is to be contacted with the cutting molding unit, the cutting blade transferred to the folding device is folded in a predetermined shape by a folding member which performs a going-straight movement and a rotating movement, and thereby, at this time, the cutting tip is detached outside by a tare. Accordingly, a working efficiency and a productivity in the cutting and folding of the cutting blade are improved and increased.

Abstract: Disclosed is a cutting blade bending apparatus. The apparatus comprises a nozzle section for feeding a cutting blade into a bending area through a guide opening which is defined therein in a lengthwise direction of the cutting blade; a first bending member for bending the cutting blade fed into the bending area, in one direction; a second bending member for bending the cutting blade fed into the bending area, in the other direction; a first rotating body for firmly supporting the first bending member and guiding rotation of the second bending member; a second rotating body for firmly supporting the second bending member and guiding rotation of the first bending member, the second rotating body being rotated independent of the first rotating body; and a driving section for rotatably driving, at a time, one of the first and second rotating bodies.

Abstract: A shaping device for producing a U-shaped conductor includes a holding portion, a feeding portion, a core metal portion and a shaping portion. The core metal portion includes a core metal and an upper guide portion. The core metal forms a die. The upper guide portion restrains upward movement of the conductor material during the shaping operation. The shaping portion includes a shaping element and a lower guide. The shaping element shapes the conductor material into the U-shape by urging the conductor material along the core metal. The lower guide restrains downward movement of the conductor material during the shaping operation. It is possible to move the shaping element downwardly after the conductor material is shaped into the U-shape. The conductor material can be fed forward without returning the shaping element to its initial position.

Abstract: The invention provides a machine and methods for automated manufacture of tapered adjustable ducts, and particularly tapered adjustable take offs. A tube of material is cut into gores of predetermined configuration, coupling beads are formed in the gores and the gores are adjustably interconnected to one another to form the finished take off duct in an automated fashion. The apparatus for forming an adjustable duct member may include a housing including at least one work station formed therein. A die associated with the work station is selectively positioned at a predetermined location relative to a work piece positioned in association with the work station. A cutting and forming assembly associated with the work station cooperates with the die to selectively cut the work piece to form first and second members and to form a coupling bead in the first and second members which cooperate to reconnect the first and second members together at a predetermined angle.

Abstract: Tube bending machine including an elongate fixed frame secured at one of its ends to a bending head and to a bending arm pivoting about the bending head, a magazine device on the bending arm, the magazine device bearing pairs of clamping jaws with different impressions formed thereon, and being pivotable at the same time as the bending arm about the bending head so as to shape tubes. The magazine device is moveable both, rotationally about its own longitudinal axis and in directions lying in planes which are at least one of, perpendicular and parallel to a plane containing the longitudinal axis of the fixed frame. The magazine device includes a magazine, a jaw support sliding along the bending arm, a magazine holder secured to the jaw support, a first motor for moving the magazine vertically on the magazine holder, and a second motor for rotating the magazine about its own longitudinal axis.

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: The machine for automatically bending profiled elements and the like comprises a line for feeding the profiled elements to be bent. Bending means are suitable to end at least a rear end of the profiled elements in a bending station which is arranged in an upper or lower position with respect to the feed line of the profiled elements. Transfer means are suitable to move the profiled elements from the feed line to the lower or upper bending station. Drawing means act at the bending station to move the profiled elements longitudinally.

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: This invention relates to sheet metal buildings of relatively large size and more particularly but not exclusively to processes and apparatus for cold-forming elongate building elements of such buildings and methods of building construction. The invention provides in one aspect cold-forming dies 30, mounted on intermediate transverse members 21 of a frame 1, comprising a set of coextensive generally in register dies between which the strip is received. The set comprises a male die 22 having a concave leading edge 24 and a female die 23 having a convex leading edge 18. The male die 22 and female die 23 are driven towards one another to plastically deform the strip 6 into a channel section. The concave leading edge 24 is provided with a coextensive protrusion 26 and the convex leading edge is provided with a coextensive recess 27.

Abstract: The present invention relates to a mechanism for conveying a sheet metal strip, such as plate sheet strip, on a profiling line and/or after it.

Abstract: A method for bending a metallic flanged member includes the steps of applying a compressive force to a flange 2 of a metallic flanged member 1 in a direction that intersects a longitudinal direction of the metallic member for compression plastic deformation of the flange, and thereafter bending the metallic flanged member 1 along a flanged side thereof in such a manner that the flanged side of the metallic flanged member is situated on an inner side of a bending process, and an apparatus for use with the same method.

Abstract: An apparatus for manufacturing a large-diameter gasket in which a pair of holding presses have press members which selectively bears against an elongate band while a bending press pivots against a portion of the band. The drive press bears against a portion of the band, and with the holding presses released, moves longitudinally to move a next portion of the band into the bending press. A method of manufacturing the large-diameter gasket is disclosed, together with a jig for applying a patch of sealing material to a joint formed between opposing distal ends of the gasket.

Abstract: The subject of the invention is a method for forming sheet metal strip, such as roofing sheets, in which the sheet strip (1) is moved forward and formed into undulated metal sheets by means of machine tools (2). The tooling (2) used in the method according to the invention consists of one or more presses (2) which are fitted with undulated pressing dies. The sheet metal strip (1) is gripped in place with the second press (3) and, when secured, the first press (22) is drawn along the length of the sheet metal strip and forms, by means of the press, an undulate profile (4) in the sheet metal strip.

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: A pipe bending apparatus is disclosed for bending pipe sections, particularly pipe sections of the type used in pipelines. The apparatus allows rapid clamping of the pipe section at reduced pressure via hydraulic fluid regeneration, while providing full hydraulic force for pipe section bending.

Abstract: The present invention relates to a method of working a band blade that is a so-called Thomson blade. In the invention, a band blade 1 is bent into a predetermined shape by a bending mechanism 7, the bent band blade is then forward fed, and a rear portion of a bent region Z of the band blade 1 is cut away by using a front band-blade cutting tool 2 which is placed in front of the bending mechanism 7. In the invention, in advance of bending of the band blade 1, a step of cutting the front end of the band blade 1 by using a rear band-blade cutting tool 2 which is placed in rear of the front band-blade cutting tool 2 may be conducted. After the front end of the band blade 1 is cut by using the rear band-blade cutting tool 2, the band blade 1 is forward fed, a bridge 14 is formed in the band blade 1 by using a bridge punching mechanism 8, and the band blade 1 is then forward fed to be bent into a predetermined shape by the bending mechanism 7.

Abstract: A device for forming a cutting blade for prints is disclosed. The device of this invention forms cutting blades by appropriately bending and cutting a metal strip into desired blades through integrated work regardless of a difference in the size of metal strips. The device is also provided with changeable jigs, thus being capable of forming bridge notches having different intervals, widths and configurations. The device has one vertically movable bending pin and one swing cutter. The bending pin is capable of quickly bending a metal strip into a desired configuration, while the swing cutter finely and precisely cuts the metal strip into cutting blades. The device also quickly produces high precision cutting blades, thus improving productivity and reducing the cost of the cutting blades.

Abstract: The present invention provides an unified folding system for processing in one work line all working processes needed in cutting and folding a cutting blade in a shape suitable to a sheet matter molding. A cutting blade supplied from a transferring unit of the cutting blade is cut in a length suitable to a sheet matter molding configuration in a cutting molding unit adjacent thereto, simultaneously the cutting tip used in cutting is transferred together with the cutting blade to a folding device side through a guide member set which is to be contacted with the cutting molding unit, the cutting blade transferred to the folding device is folded in a predetermined shape by a folding member which performs a going-straight movement and a rotating movement, and thereby, at this time, the cutting tip is detached outside by a tare. Accordingly, a working efficiency and a productivity in the cutting and folding of the cutting blade are improved and increased.

Abstract: The invention provides a machine and methods for automated manufacture of tapered adjustable ducts, and particularly tapered adjustable take offs. A tube of material is cut into gores of predetermined configuration, coupling beads are formed in the gores and the gores are adjustably interconnected to one another to form the finished take off duct in an automated fashion. The apparatus for forming an adjustable duct member may include a housing including at least one work station formed therein. A die associated with the work station is selectively positioned at a predetermined location relative to a work piece positioned in association with the work station. A cutting and forming assembly associated with the work station cooperates with the die to selectively cut the work piece to form first and second members and to form a coupling bead in the first and second members which cooperate to reconnect the first and second members together at a predetermined angle.

Abstract: A wire product manufacturing apparatus includes a wire guiding section which receives a wire from a wire supply and guides the wire toward a wire feeding device. The wire feeding device feeds the wire into a wire rotating section comprising a releasable wire holding device which selectively allows the wire received from the wire feeding device to pass through and into a wire shaping device comprising a central bore and a plurality of tool sets surrounding the central bore. The central bore allows a length of the wire, determined and controlled by the wire feeding device, to extend therethrough so as to allow tools on the tool sets to operate on the wire for forming a wire product. The wire holding device is selectively driven by means of for example a motor to rotate the wire about its own central axis and make a desired angular displacement in a controlled manner so as to facilitate the manufacturing of the wire product.

Abstract: Wave curb for the cow stand of a diagonal or herringone milking parlor is formed of an elongated sheet metal strip. The side edges are each bent over about 180 degrees to form unitary beads on the side edges. The strip is bent in alternate curves in the longitudinal direction so as to form a succession of alternate arcuate bights, preferably with a wavelength of about 36 to 42 inches. Preferably, the strip is stainless steel or galvanized steel, and has a finished length of about 36 to 144 inches. The sheet metal workpiece is inserted into a wave curb bending apparatus which simultaneously forms a first pair of opposite arcuate bights. Then the workpiece is moved longitudinally in the wave curb bending apparatus; and a second pair of opposite arcuate bights is formed in the sheet metal workpiece.

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: Perfected bending system for bending machines including a working plane (19) cooperating with at least a drawing device (12) including one or more pairs of rolls (15), the rolls (15) having at least a working position ("I") wherein they are closed on the round piece (11) in order to feed it forward, the drawing device (12) cooperating with at least one bending assembly (13b) arranged downstream thereof and with at least one shearing assembly (14), the system providing that, at the end of the feeding and positioning step of the round piece (11) in correspondence with the relative bending assembly and before the bend is made, the rolls (15) of the drawing device (12) are temporally arranged in an open position ("II") where they do not interfere laterally and are not in contact with the round piece (11) so as to allow the already bent portion located beyond the bending assembly to fall onto the working plane (19), returning subsequently to the closed working position ("I") before the bending is carried out.

Abstract: An automatic learning apparatus for a folding machine which automatically measures a folding angle of a member to be folded in advance and stores driving data for the folding machine with respect to a desired folding angle. Thus, the same member to be folded is folded using the previously obtained driving data. Accordingly, the automatic learning apparatus can obtain such driving data with respect to the desired folding angle swiftly and accurately.

Abstract: A machine (1) for bending pipes and wire-like material in general comprises, on a bed (2), a bending head (20) and a plate (5) supporting a carriage provided with a gripper (10) for gripping the end portion of the workpiece opposite to the bending head (20), by providing a shaft (6) extending from the bottom surface (7) of the plate (5), the shaft (6) being rotatably housed in the bed (2) and being operatively coupled with controllable driving means.

Abstract: A bending machine (1) for bending wire-like material, such as pipes, rods or section members, comprises a machine bed (2) supporting a carriage provided with a gripper (10) for controllably turning and translating a workpiece, and a curving head (50) which is supported by a translating slide (20) operatively coupled with controllable driving means, the translating slide (20) being supported by a table (25) having a supporting shaft (35) which is rotatably housed in the machine bed, and is operatively coupled to controllable driving means.

Abstract: A bending device which can reduce a change in bend radius caused by movement of a bending jig and which can twist an elongate material using a simple construction. The bending device has a positioning jig 6 with a clearance opening formed therein for passing a material 1, positioning jig 6, for receiving the material, a bending jig 12 with a clearance opening for passing the material 1. The bending jig is supported on a sliding mechanism 26 movable in a plane perpendicular to a material supply direction controlled by a sliding drive mechanism 32. The device is also provided with a first bending mechanism 51 for pivoting the bending jig 12 around a first axis orthogonal to the length of the elongate material and a second bending mechanism 55 for pivoting the bending jig 12 around a second bending axis 52 orthogonal to the length of the material and the first bending axis to bend the material 1.

Abstract: In a machine for automatically bending a material into the outside skin of a channel letter, a desired configuration of the channel letter is input into a control computer. The computer controls the feed of the strip of metal into the machine for the bending of the metal into the outside skin. Feed assemblies feed the material along a material feed path of the machine. A notching station notches the edge of the material where necessary for purposes of forming flanges in the material and bending the material. A subsequent flange forming station forms the flanges on the edge of the material, when desired. A bending assembly bends the strip of material into the desired form, with the bending arm moving from one side to the other of the material as necessary. The material is cut at a cutting station immediately preceding the bending assembly when the length of the material needed for the formation of the outside skin has been fed to the appropriate point at the cutting station along the material feed path.

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: The present invention provides an unified folding system for processing in one work line all working processes needed in cutting and folding a cutting blade in a shape suitable to a sheet matter molding. A cutting blade supplied from a transferring unit of the cutting blade is cut in a length suitable to a sheet matter molding configuration in a cutting molding unit adjacent thereto, simultaneously the cutting tip used in cutting is transferred together with the cutting blade to a folding device side through a guide member set which is to be contacted with the cutting molding unit, the cutting blade transferred to the folding device is folded in a predetermined shape by a folding member which performs a going-straight movement and a rotating movement, and thereby, at this time, the cutting tip is detached outside by a tare. Accordingly, a working efficiency and a productivity in the cutting and folding of the cutting blade are improved and increased.

Abstract: There is proposed is a bending device which has a simple structure, easily performs a control and provides a high degree of freedom in bending. The bending device is provided with a positioning jig 6 with a clearance hole 4 formed therein for passing a material 1 to a bending jig 34 for contacting an outer periphery of the material supplied from the positioning jig 6. A rotary body 18 is rotated by a rotating drive source 22 coaxially with the material passed through the clearance hole 4 in the positioning jig 6. The bending jig 34 is attached to a member 30 pivotably supported by the rotary body 18, and pivoted by a cylinder 38, to bend the material 1.

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 portable tube-bending machine for receiving a length of tubular material 10 and repeatedly crimping the length of tubular material 10 to form an elbow. It includes a so-called toggle assembly 24, a carriage assembly 70 and an operating shaft assembly 50, all being movably mounted to a framework assembly 15. Operating shaft assembly 50 is operatively connected to sequentially actuate movement in toggle assembly 24 and carriage assembly 70. Outer die elements 28, 29, and 30, are movably mounted to toggle assembly 24 and adapted to crimp tubular material 10 by crimping it against an inner die 26. Carriage assembly 70 engages tubular material 10 and induces lengthwise movement relative to framework assembly 15 along the axis of the length of the tubular material 10.

Abstract: A device for bending hollow-section strips (12) with clamping and guiding jaws (20, 21). A bending support (1) is provided, which consists of two bending support parts (2, 3) that engage between clamping and guiding jaws (20, 21). Bending support parts (2, 3) are independent of the clamping and guiding jaws (20, 21), which can be adjusted in the bending plane relative to the clamping and guiding jaws (20, 21). One bending support part (2) is mounted on a support (4) and the other bending support part (3) can be shifted, relative to the bending support part (2) that is mounted on the support (4), in a direction (arrow 5) that is perpendicular to the bending plane, whereby a movable bending support part (3) is under the action of a spring (9), which urges it away from the bending support part that is mounted on the support (4). Thus, the bending support (1) is automatically adjusted to an effective width that corresponds to the width of the hollow-section strip (12).

Abstract: The present invention provides an unified folding system for processing in one work line all working processes needed in cutting and folding a cutting blade in a shape suitable to a sheet matter molding. A cutting blade supplied from a transferring unit of the cutting blade is cut in a length suitable to a sheet matter molding configuration in a cutting molding unit adjacent thereto close-situated, simultaneously the cutting tip used in cutting is transferred together with the cutting blade to a folding device side through a guide member set which is to be contacted with the cutting molding unit, the cutting blade transferred to the folding device is folded in a predetermined shape by a folding member which performs a going-straight movement and a rotating movement, and thereby, at this time, the cutting tip is detached outside by a tare. Accordingly, a working efficiency and a productivity in the cutting and folding of the cutting blade are improved and increased.

Abstract: It is desirable to accurately subject a process object region of a long edged strip material to notching and bending processes. A bending apparatus and a notching apparatus are used. The process object region of the long edged strip material which is passed through an outlet of a die member of the bending apparatus is subjected to a notching process conducted by the notching apparatus. Next, the process object region is subjected to a bending process performed by the bending apparatus. Finally, the process object region is cut off from a not-yet-processed region. An encoder measures a pulled-out amount of the edged strip material obtained when the edged strip material is pressed by a presser against a shaping face of the outlet of the stationary die so as to be bent. A servomotor is operated by a rotation number in which the measured value of the encoder is considered, so that the edged strip material is fed by a predetermined length.

Abstract: A support arm assembly for a pipe bending machine, including one or more linear ledges arranged along the arm; a mandrel including a piece for intercepting the ledges through a click (106) switching between a raised rest position and a lowered working position by the displacement of an eyelet, in which it can slide, having raising edges (105) against which click (106) is loaded, under the actuation of an air cylinder, under the control of means that also control the opening/closing of the pipe carrier gripper (16) of the mandrel; and angular ledge dowels with a sense cut (200) being provided on the periphery of the mandrel, cooperating with a spring-loaded locator.

Abstract: The press comprises two tool holders facing each other (28a, 28b), capable of relative movement one towards the other and back again. Each tool holder carries a bending tool (40a, 40b) and a clamping tool (42a, 42b). The tool holders (28a, 28b) are in addition capable of relative movement between two working positions in one of which the rear edge (46a) of a tool holder (28a) is so positioned as to cooperate, in order to bend the sheet (L) in a first direction, with a front edge (44b) of the bending tool (40b) of the other tool holder (28b), and the clamping tool (42b) of the other tool holder (28b) is immediately opposite the tool of the first tool holder (28a) in order to cooperate with it through the interposed sheet (L). In the other working position, the functions of the edges of the bending tools and the functions of the clamping tools are reversed in order to carry out the bend in the other direction.

Abstract: An automatic indexer a portable sheet bending brake having a first longitudinally extending member forming a clamp surface, a second longitudinally extending member movable with respect to the first member for clamping sheet material against the clamp surface, and a third member pivotally coupled to the second member for bending sheet material clamped between the first and second members over a bending anvil on the forward edge of the second member. The indexer includes a pair of slides having means for mounting the slides parallel to each other and spaced from each other lengthwise of the clamp surface on the bending brake. A pair of carriages are each slidably disposed on one of the slides, and a bar extends longitudinally between the carriages for engagement with an edge of sheet material inserted between the first and second members of the sheet bending brake.

Abstract: An automatic method and device for calendering aluminum profiles for producing spacer frames for insulating glazing units, the method consisting in producing calendering by preliminarily deforming the surface on which minute holes are formed so as to obtain an inside curve. A consecutive plurality of minute bends, the pitch increment whereof tends to zero and the bending angle increment whereof tends to zero, is then performed at an automatically controlled microbending station.

Abstract: A method and apparatus for bending a heat-exchanger tube, which heat-exchanger tube have heat-exchanger ribs preferably having a needle construction. In the method and apparatus, the heat-exchanger tubes are placed one above the other to be defined by one another to form a battery. The battery of heat-exchanger tubes is fed first into a first bending-device portion of the bending device in which the heat-exchanger tube is bent in one direction. After this, the tube battery is fed further, and the bending is performed in the second bending-device portion in the opposite direction of bending, whereby a wave-shaped form is obtained.

Abstract: A method and apparatus is described for forming a T-shaped slot a sheet of material. The sheet of material is clamped to a top surface of an arbor. The arbor has a uniform T-shaped cross section having two undersides of the T-shape. The sheet of material is first formed into an inverted U-shape and then the sheet of material is bent to conform to the undersides of the arbor forming the T-shaped slot. The arbor is withdrawn from an open end of the formed T-shaped slot.

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: The invention relates to an apparatus for automatically bending a strip-shaped blade material to a predetermined configuration. An oscillating arm provided with a movable clamp portion for holding the blade material at the front end portion thereof is attached to a base. A pair of stationary bits are adjacently placed on the base near an end of the movable clamp portion of the oscillating arm at a predetermined distance. The apparatus is provided with an oscillation driving mechanism oscillating the oscillating arm horizontally and a feeding mechanism sending the blade material forward along the oscillating arm. The blade material is bent between one of the stationary bits and the movable clamp portion by oscillating the oscillating arm horizontally.