Abstract: A thrusting device for pipes or the like to bend in a pipe or the like bending machine suitable for a quick-acting coupling-release.

Abstract: A rolling train for rolling a strip has a number of rolling stands and a coiler. The rolling stands have work and backing rolls. Data of the strip are fed to a control device of the rolling train which determines individual pass reductions for the rolling stands based on the data. It controls the main rolling stands and the coiler such that the strip is rolled in the main rolling stands according to the individual pass reductions and then coiled up. It determines the individual pass reductions such that they are zero and controls the rolling stand arranged directly upstream of the coiler such that—with respect to this main rolling stand—the tension in the strip on the outlet side is less than on the inlet side, but the strip runs through this rolling stand without undergoing any forming, at least on one side.

Abstract: The invention concerns a machine for cambering, forming, folding or bending a bar, a wire or an extruded shape. The invention includes a bending form provided with a clamping system, a device for orienting the tube, and a bending jaw (8). The bending jaw is prismatic and machined to the tube radius on at least one of its surfaces. The kinematics of the displacement of the bending jaw in a peripheral area at the bending form is provided by any combination of at least two, rectilinear or rotating, movements. The bending jaw is steerable in rotation about a median axis perpendicular to the bending plane. The bending jaw is mobile in the vertical direction to provide multiple bending operations.

Abstract: A bending processor for a pipe has a pipe bending unit and a pipe twisting unit. The pipe bending unit is rotated by a predetermined angle while pressing the processed pipe against the circumferential face of a bending die, and performs the bending processing. The pipe bending unit may be movable in the longitudinal direction of the processed pipe or may be fixed. The pipe twisting unit is freely rotated by a predetermined angle with the center of the processed pipe as an axis. The pipe bending unit has a tensile bending function and a compression bending function.

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: The bending device comprises a hydraulic motor for moving a feeding table, and a hydraulic circuit including first and second switching valves which can be selectively switched between a speed control channel for supplying operating oil from a discharge-rate variable hydraulic pump to the hydraulic motor by way of a servo valve and a pressure control channel for supplying high pressure operating oil from the hydraulic pump to the hydraulic motor. When the feeding table provided with a chuck mechanism gripping a longitudinal material is moved to a bending mechanism to bend the material, control of the speed and application of axial compressive force can be conducted by switching of the first and second switching valves.

Abstract: Apparatus for progressively manufacturing fabricated or semi-fabricated articles, such as a rotor or stator assembly, includes a punch press and a progressive stamping die for creating the assemblies from sheet stock moving therebetween. A microcontroller board or network, including a plurality of microcontroller boards, is secured to the die for controlling operation of the apparatus responsive to information provided to them. Sensors are provided for monitoring operation of the apparatus and providing such information to the microcontroller boards. The communication system provides for communication between the sensors and the logic chips, among the logic chips and among the microcontroller boards and between the microcontroller boards and other portions of the apparatus which are to be subjected to responsive control.

Abstract: The present invention relates to a powered crimping tool used to secure a cap onto a bottle or vial. The powered tool has a vertical housing portion which the user holds to activate the crimping action. The crimping action results from a motor causing a plunger to move downward, thereby initially closing a plurality of jaws and continuing downward to cooperate with the jaws to secure the cap on the bottle or vial. Means are provided to adjust the starting point of the crimping cycle or the plunger upper limit as well as the finishing point of the crimping cycle or the plunger lower limit.

Abstract: A tag for use in a press machine includes a reprogrammable storage area provided in the form of a read/write memory for storing reprogrammable die information associated with the die assembly. A communications device provided in the form of a transceiver transmits die data supplied by the read/write memory and receives data for storage in the read/write memory. The tag, which is integrally attached to one of the die members, establishes a wireless bi-directional communications link with a production monitoring system provided in the form of a reader module integrally associated with the press machine. The reader includes a transceiver arranged for RF communication with the tag transceiver. Die data received by the reader from the tag is supplied to a press controller, which may also provide the reader with information to transmit to the tag.

Abstract: A pressing device 1 for joining workpieces 44, 45 has a pressing tool 3 and a motorized drive 5 for actuation of the pressing tool 3 over a pressing distance, as well as a control device 26 which has a drive control device 62 with an output control device 67 as actuator for influencing the drive 5, such that at least one setpoint profile is retained as a command variable according to which a manipulated variable, corresponding to the setpoint profile, is generated for influencing the output control device 67. The output control device 67 and the setpoint profile 79 or profiles are part of a servocontrol system.

Abstract: A press brake is provided for performing one or more bending operations on a product, such as a sheet metal part, whereby the selection and laying out the clues necessary for bending the product is facilitated by detecting the kinds and layout of the dies loaded in the press brake. A display device is also provided for displaying the layout of the dies, checking interferences between the product and the dies, and displaying the details and features of the product.

Abstract: A diagnostic method of diagnosing a press for the presence of any abnormality that deteriorates a quality of a product manufactured by the press, wherein physical value (Fs, Fsi, Ff, Ffi, Fp, Fpi, Xsi, Xei, Xy, Xz, Vx, Gx, Gy, Gz, Temp A, Temp B, Va0, Vf0, Vd0, V, Aa, Ag, Az, Afi, Ps, Pmai, Psa, Paa, Pyai, Peai, Pzai) such as a load generated at a selected portion of the press during operation of the press is detected, and the press is diagnosed for any abnormality, on the basis of the detected physical value, and according to a predetermined reference.

Abstract: A reinforcement binding machine for binding reinforcement with a wire, comprises: a wire feed device for feeding out the wire; a guide arm for guiding the fed-out wire such that the wire is wound in a loop shape around the intersecting portions of the reinforcements; a wire twisting device for gripping part of the looped portion of the wire wound around the reinforcements to twist and tighten the same; a wire cutting device for cutting off the looped portion of the wire from the base portion of the wire; and a newly-wire setting mechanism for positioning the leading end of the wire to a given position when newly loading the wire into the reinforcement binding machine.

Abstract: Method and apparatus applicable to a press using a die set including a lower and an upper die which are removably installed movably towards and away from each other to perform a pressing operation under the adjusted operating conditions. A memory is provided to store machine information relating to the press and necessary to determine optimum values for the operating conditions. Die set information relating to the die set and necessary to determine the optimum values are received through a data input device. A calculating device calculates the optimum values, based on the machine information and the die set information, and an adjusting device automatically adjusts the operating conditions according to the calculated optimum values.

Abstract: In a cushioning device of a press having a pneumatic cylinder for producing a blank-holding force to be applied to a blank through a cushion platen and a pressure ring, an optimum initial value of the pneumatic pressure of the pneumatic cylinder when the cushion platen is placed at a setup position lower than the lower stroke end is calculated based on die-set information relating to the pressure ring and including a predetermined optimum value of the blank-holding force, and machine information relating to the cushioning device, so that the calculated optimum initial pneumatic pressure provides the optimum blank-holding force during a pressing operation, irrespective of a volumetric increase of the pneumatic cylinder due to a movement of the cushion platen from the setup position to an operating position for the pressing operation. The pneumatic pressure is adjusted to the calculated optimum initial value when the cushion platen is located at the setup position.

Abstract: The invention provides an apparatus for the rotary draw bending of pipe and tube having means to apply an axial boost force to the trailing end of the tube during the bending operation, which force assists in controlling the flow of tube material into the bend. The apparatus has means to monitor the amount of material being used during each bending operation and means to control the amount of boost applied to the tube whereby the bending operation can be controlled to better achieve desired elongation characteristics. Bent tubes to a consistent standard and quality are obtained.

Abstract: A boost system (53) traveling behind the carriage (12) of a tube bending machine includes an hydraulic boost cylinder (58) that slidably receives a boost shaft (52) that is connected to the carriage. The boost cylinder has a piston fixed to the boost shaft, and the cylinder is slidably mounted on the machine bed (10) that slidably carries the carriage so that the boost cylinder (58) is carried along with the carriage (12) as the carriage moves toward and away from the bend head (24) mounted at a forward end of the machine bed for positioning a tube (22) to be bent at the bend head. When a bending operation commences, the boost cylinder (58) is locked to the machine bed by a movable pawl (94) that is driven into engagement with a rack (80) fixed to the bed.

Abstract: Described is a spatial uncoiling and stretch-bending process in combination with a mandrel bending station and the corresponding apparatus, in which the section being bent is first clamped at either end and prestressed and the section is then bent, with at least one section roller being pressed against the section in the forming zone and three-dimensionally repositioned. To also permit the bending of closed or partially open sections, the invention provides that the mandrel bending station, with the mandrel or mandrels around which the section is bent, move in agreement with the motion of the section rollers, which are pressed from the outside onto the mandrel bending station.

Abstract: A method and apparatus for expanding and contouring honeycomb preforms into compound curved honeycomb core sheets. Honeycomb preforms are provided having a plurality of face to face, contiguous, strips bonded together at selected narrow areas such that when strips along opposite edges are moved away from each other a sheet having a repeating array of regular hexagonal cells results. Opposite edge strips are secured to two spaced arms located adjacent to a freely rotatable crowned drum having a surface contour corresponding to the desired honeycomb sheet configuration. One of said arms is pivoted about the drum axis. As the arms are moved apart, a flat partially expanded honeycomb sheet initially develops. As arm movement continues, the sheet then comes into sliding contact with the drum surface. When cell expansion is completed, during the final shaping and setting phase, the honeycomb core sheet is in full contact with the drum surface.

Abstract: An electrohydraulic system for bending tube stock includes a bend head having a mandrel and an actuator coupled to a bending die for engaging the tube stock and bending the stock around the mandrel. A clamp is coupled to a second actuator for gripping the tube stock, and a third actuator mechanism in the form of a boost cylinder is coupled to the clamp for urging the tube stock lengthwise into the bend head. An electrohydraulic valve is responsive to an electronic valve control signal for variably feeding hydraulic fluid to the boost cylinder, and velocity of slip at the clamp is determined. An input pressure command signal is compared with pressure at the boost cylinder to develop a pressure error signal. Slip velocity is compared with a velocity limit command to develop a velocity difference when slip velocity exceeds the velocity limit, and the pressure error signal is modulated and employed as the valve command signal to maintain slip velocity at or below the level of the velocity limit command.

Abstract: In the process for the cold forming of ferrous and nonferrous metal sections, pretensioning is applied to the initially essentially straight metal section, which is clamped at both ends. Next, the tensioned metal section is bent in a rotating bending tool. In order to achieve three-dimensional forming of the metal section, the bending tool effects a controlled movement in all three spatial axes, whereby the metal section is pressed, with a backlash-free guide system, at least in the forming region against the bending tool and guided by positive engagement.

Abstract: The method of making a round-rolled part for a heat exchanger comprises connecting the tubes and the irradiating elements to each other to form a rectilinear network, clamping both ends of the rectilinear network and stretching and bending the clamped network so that it assumes an arcuate shape. The premise adopted is that of a network of flat tubes consisting of rectangular tubes and irradiating elements between them, the tube network being bent round around a narrow side of the tubes. The network has one end rigidly gripped on the bending tool. The tubular network is wound onto it by rotating the latter. There is applied to the other end of the network a retaining force which counteracts the winding-on force and which maintains the tube network under tensile stress. The apparatus comprises a rotatable round bending tool and a clamping means which tangentially clamps the end of the network. Spaced from the round bending tool there is a mating holder for firmly gripping the other end of the network.

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 tube bend is started by compresssion bending and continued by draw bending. Conventional bending equipment is employed with one die slightly modified so that normal machine operation causes the pressure die to initially operate in a compression bending mode and then to operate in a draw bending mode. The tube is clamped between a rotatable bend and clamp die. The pressure die presses the tube against the bend die and initially moves with the tube so as to exert little axial restraint. The pressure die is caused to exert increasing pressure upon the tube, and its motion with the tube is stopped after a short initial travel, whereupon the pressure die restrains the tube as the bend and clamp dies continue to rotate, thereby to effect a draw bending to the completion of the bend.

Abstract: A tube bend is started by compression bending and continued by draw bending. Conventional bending equipment is employed with one die slightly modified so that normal machine operation causes the pressure die to initially operate in a compression bending mode and then to operate in a draw bending mode. The tube is clamped between a rotatable bend and clamp die. The pressure die presses the tube against the bend die and initially moves with the tube so as to exert little axial restraint. The pressure die is caused to exert increasing pressure upon the tube, and its motion with the tube is stopped after a short initial travel, whereupon the pressure die restrains the tube as the bend and clamp dies continue to rotate, thereby to effect a draw bending to the completion of the bend.

Abstract: The pipe bending machine of the present invention is adapted for mandrelless pipe bending with the simultaneous compressing of the pipe being bent to avoid thinning of the walls thereof.The invention can be used to best advantage when applied to bending large-diameter (1000 mm and over) steel pipes.The machine features the bending mechanism and the longitudinal travelling mechanism so interconnected by means of the members and disks that a braking moment is applied to the bending mechanism and, consequently, pipe upsetting occurs.