Abstract: A bending mold device for bidirectional pipe bending includes a mounting base which is horizontally arranged on a rack in a sliding manner. The mounting base includes a translation lead screw driving the mounting base to slide. The rack includes a lead screw nut. A pipe bending spindle is rotatably disposed on the mounting base and a power mechanism is disposed on the mounting base. The upper end of the pipe bending spindle is movably connected to a lower rotating base. The lower rotating base includes a first pipe bending shaft and a second pipe bending shaft, which respectively include a first bending mold lower mold and a second bending mold lower mold. The rack includes a cylinder above the lower rotating base. The end part of a piston rod of the cylinder fixedly includes an upper limiting plate and a lower limiting plate in a sleeving manner.

Abstract: The invention relates to a bending machine for the production of bent profile sections, in particular for exchanger tubes, including a frame on which an articulated arm is mounted consisting of a rotatably fixed arm capable moving along a transverse axis of movement, and a rotary arm supported by a rotary shaft and having a means for attaching a clamping jaw, a means for mounting either a freely rotating roller or a clamping shape rotatably secured about said rotary shaft on the rotary shaft of the articulated arm, driving rollers distributed in two series and positioned on either side of a bending axis, and a means for actuating said driving rollers for synchronously rotating the latter.

Abstract: A rotary-draw bending die with eccentric clamping for bending elongate workpieces such as pipes, wires, profile strands, etc. The die having a twistable bending mandrel, and an associated clamp die. The clamp die can be moved relative to the bending mandrel and brought from an opened position remote from the bending mandrel. A workpiece to be bent can be inserted between the bending mandrel and clamp die to a clamping position on the bending mandrel or vice-versa and is freely twistable about a swivel axis which is offset eccentrically in relation to the rotational axis of the bending mandrel. The swivel axis is disposed on a rotary plate which is rotatable relative to the bending mandrel. The clamp die is freely twistable about the swivel axis and can be moved between its clamping position and its opened position by twisting the rotary plate relative to the bending mandrel.

Abstract: A support jaw arrangement for sliding lateral support of rod-shaped and tubular workpieces prior to their entrance into a forming groove of a bending head of a bending machine. The support jaw arrangement includes two support jaws, one on each side of the workpiece. Each support jaw is fastened on a holder to a support bracket which, guided in a longitudinally displaceable manner on a guide block, is displaceable by a drive device from an initial position retracted against the direction of transport of the workpiece parallel to the same, to an end position extended in the direction of transport of the workpiece. One support jaw supports the workpiece in a laterally sliding manner in a region from its tangential entrance into the forming groove, up to a point at a predetermined distance in front of the same while the other support jaw assumes a retracted initial position.

Abstract: In a rotary-draw bending die with eccentric clamping for bending elongate workpieces such as pipes, wires, profile strands or the like, comprising a twistable bending mandrel, a clamp die which is associated with said bending mandrel, can be moved relative to the same and can be brought from an opened position remote from the same in which a workpiece to be bent can be inserted between bending mandrel and clamp die to a clamping position on the bending mandrel or vice-versa and is freely twistable about a swivel axis which is offset eccentrically in relation to the rotational axis of the bending mandrel, which swivel axis is disposed on a rotary plate which is rotatable relative to the bending mandrel, the clamp die is freely twistable about the swivel axis and can be moved between its clamping position and its opened position by twisting the rotary plate relative to the bending mandrel.

Abstract: A bending machine with a controlled-return bending die includes a matrix (2) mounted around a spindle (3) having an axis y, a bend arm (4) being able to turn around on the same axis y, and a vice (5) adapted to clamp a section of a workpiece to be bent. A driving element causes the bend arm (4) and the matrix (2), both being connected together by the vice (5), to rotate around the axis y for a set angle from a start position, and a workpiece bending operation is performed for a workpiece section corresponding to the angle. The bend arm (4) carries on itself a controlled return element able to return the matrix (2) to its start position at the end of workpiece bending operation.

Abstract: On a machine for bending rod-shaped or tubular workpieces, which includes a bending head having a bending mandrel mounted on a rotational axis and rotatable by means of a rotary drive, and having a clamping device for pressing the workpiece to be bent against a forming groove on the bending mandrel and also a feeding device for the workpiece to be processed, whereby the clamping device is positionable relative to the bending mandrel and can is also pivotable concentrically to the rotational axis of the bending mandrel, the clamping device is attached to two mutually independent rotary drives, one of which performs its pivoting movement about the rotational axis of the bending mandrel, and via the other of which it can be moved with respect to the bending mandrel by using an interposed conversion transmission that converts a rotary motion to a linear motion, whereby the bending head includes three concentrically nested rotary shafts for transmitting the drive of the three rotary drives to the bending mandrel,

Abstract: A bending machine with a compact bend arm includes in a bend arm (4) being mounted on a rotating spindle (3) a cylinder which is fed with a pressured fluid through hoses (7) being part of a hydraulic circuit connected to a source of pressured fluid and of an electric circuit. Each of the hoses (7), which are side by side, comprises a curved section (7a) around the rotating spindle (3), the curved section (7a) being radiused at one end to a section (7b) parallel to the bend arm (4), and at the other end to a section (7c) directed to the rest of the bending machine, to which hoses (7) are retained. In the section (7b) parallel to the bend arm (4) the plurality of hoses (7) are clamped on a slider (9) slidable in a prismatic guide (10) which is provided in the bend arm (4).

Abstract: A machine for terminating wire assemblies comprising: a means for holding a wire assembly; a linear movement means for moving said means for holding between a first area and a second area; an insertion head; and, a means for dislodging; wherein, after a wire assembly is loaded into the means for holding a wire assembly, the means for holding a wire assembly is moved by the linear moving means from the first area to the second area for assembly termination by the insertion head; and, following termination, the assembly is at least partially unseated from the means for holding a wire assembly by the means for dislodging.

Abstract: A feeding mechanism of a pipe bending machine is equipped with several auxiliary hydraulic cylinders in addition to an original power source for providing power to feed a pipe; the auxiliary hydraulic cylinders are joined to an auxiliary fixing member at output rods thereof, which fixing member is displaceable along a toothed locating rod secured on the bending machine, and is equipped with an engaging device capable of releaseably engaging the toothed locating rod to fix the fixing member in position; thus, the feeding mechanism can feed a pipe with increased force output when the fixing member is made unmovable along the locating rod by the engaging device, and when the auxiliary hydraulic cylinders operate.

Abstract: A substantially rectangular metal blank (18) is formed about a mandrel (14) to provide a slightly open shell (28) having a pair of axially extending lips (20c, 20t) separated by a distance sufficient to permit a prewound spool (10) and its film leader or other product to be inserted axially into the shell prior to closing the shell about the spool or other product.

Abstract: A new and useful device for producing bends in metal tubing by containing the tubing in a form and rotating the form against a fixed shoe thereby bending and swagging the tubing to the shape of the form. The form being rotated by a ratchet and pawl mechanism which translates the linear motion of levers and linkage produced by the gripping force of the hand into circular motion of the form.

Abstract: A rotary pipe bending machine employs a single hydraulic motor to drive clamp and pressure dies toward the bend die and to rotate the bend and clamp dies. The motor piston is connected via a chain to drive a clamp die carrier toward a rotatably mounted bend die and toward a bend die shaft actuator. Upon continued motion of the clamp die carrier, it engages the actuator to rotate the bend die together with a clamp die mounted on the carrier. The motor cylinder is movably mounted and connected to a pressure die carrier so that as the motor piston drives the clamp die carrier and the bend die, the cylinder, reacting to the driving force of the piston, drives the pressure die carrier, together with a pressure die thereon, toward the bend die with a force that is produced by reaction to the required bending force. Thus the pipe is frictionally tensioned according to the magnitude of the bending force.

Abstract: A rotary pipe bending machine employs a single hydraulic motor to drive clamp and pressure dies toward the bend die and to rotate the bend and clamp dies. The motor piston is connected via a chain to drive a clamp die carrier toward a rotatably mounted bend die and toward a bend die shaft actuator. Upon continued motion of the clamp die carrier, it engages the actuator to rotate the bend die together with a clamp die mounted on the carrier. The motor cylinder is movably mounted and connected to a pressure die carrier so that as the motor piston drives the clamp die carrier and the bend die, the cylinder, reacting to the driving force of the piston, drives the pressure die carrier, together with a pressure die thereon, toward the bend die with a force that is produced by reaction to the required bending force. Thus the pipe is frictionally tensioned according to the magnitude of the bending force.

Abstract: The device bends pipes into a serpentine pipe bank having right-hand and left-hand bends, with the pipe being held, during the bending operation, in a bending rail and the pipe end to be bent being clamped in a bending form. The bending rail and the bending form are mounted in a cylindrical frame which is rotatable about the longitudinal axis of the pipe to be bent. After each formation of two 90.degree. bends, or one 180.degree. bend, the frame is rotated through 180.degree. with the pipe remaining stationary and with the bending rail and bending form completely disengaged from the pipe. The bending rail is adjustable in the frame to fixed positions in accordance with the diameter of the pipe to be bent, and the bending form, together with clamping jaws associated therewith, is pivotally mounted in the frame for swinging about an axis perpendicular to the axis of the pipe.

Abstract: Portable hydraulic tube bending machine adjustable for bend angle and adjustable to tubing with and without collars and straight and pre-bent tubes, whereby complicated bendings can be carried out at the place of use and with a minimum of space.