Abstract: A method and a device for producing a twisted line comprising at least two wires. The at least two wires are unwound from at least one take-off spool and are twisted in a twisting unit to form the twisted line, wherein the twisting unit has a first roller and a second roller and the at least two wires are supplied to a twisting area between the two rollers and are twisted by turning the rollers in the same direction.

Abstract: In order to simplify leftover wire (3) at the tying machines used in pulp production, a device is used that has an inlet guide (2) for the leftover wire (3) and a bending device (4) to bend the leftover wire running through continuously into a helical or spiral shape.

Abstract: A method for making a variable pitch spring (9), in which a spring wire (1) is bent using bending lugs (5, 6) so as to impart a spiral configuration thereto, a gap is formed between the turns by placing, between the turns being formed, the beveled side of a rotary disc (2) having a rotation synchronized with the spring wire supply, the disc (2) having a beveled profile that varies along the periphery of the disc, and the spring wire is cut (3) at the end of the formation of each spring.

Abstract: The invention relates to a shaping station of a metal wire shaping sequence machine, a machine wherein a wire feed station supplies the wire along a travel axis through a bending nose which brings the wire in front of tools of a bending head which can be moved about the wire travel axis. The bending head is supported by an annular arm centered on the travel axis, and mounted to rotate about said travel axis. Preferably, the annular arm, with the guiding in rotation thereof by rollers and a toothed ring, are mounted on a support plate positioned vertically and perpendicularly to the wire travel axis. In addition, the support plate can be moved in horizontal and vertical translation in a plane perpendicular to the wire travel axis, which also is the arm rotation axis.

Abstract: An apparatus for producing inserts for steam generator tubes is provided. The apparatus is intended to allow a technically particularly simple production process, and consequently allow particularly high-speed production of inserts. For this purpose, the apparatus includes a winding head with a wire guiding pin, a guiding opening for a former shaft, provided with a number of spiral slots, and a pressure roller, the wire guiding pin, the guiding opening and the pressure roller being arranged in such a way that a tangent of the pressure roller and of a slot of the former shaft and the guiding axis of wire guiding pin substantially coincide.

Abstract: A quill supporting member supporting a quill may include a movable body, e.g. Z-axis movable body that moves in a Z-axis direction of an XYZ orthogonal coordinate system representing a shaft core of the quill as an Z-axis. A tool holder supporting member supporting a tool holder for holding a tool may include the other movable bodies, e.g. an X-axis movable body that moves in an X-axis direction and a Y-axis movable body that moves in a Y-axis direction. Therefore, the quill is shortened in the Z-axis direction, and a contact area is reduced between a guide path of the quill and a wire rod.

Abstract: An apparatus and method for manufacturing a barrel coil spring make it possible to coil opposite sides of a spring material at the same time so as to considerably reduce manufacturing processing, thereby remarkably reducing the time required to manufacture the coil barrel spring, thus improving productivity.

Abstract: A wire forming apparatus which feeds out a wire (W) from a distal end portion of a wire guide (402), forcibly bends, curves, or winds the wire by using a forming tool (T1-T5) and forms the wire into a part with a desired shape by using a cutting tool (T0), wherein the forming tool includes a coiling tool of which a coiling spindle rotates about its central axis, a coiling tool unit (T1, T2) which rotatably supports the coiling tool and a cutting tool unit (T0) which supports a cutting blade (506) and a receiving portion (507) constituting the cutting tool so as to allow the cutting blade and the receiving portion to relatively reciprocate are attached to the tool selection table (210), and a common driving source is provided to apply driving force to the coiling tool unit and the cutting tool unit attached on the tool selection table.

Abstract: A coil spring forming apparatus including a core bar 2 which rotates around an axis thereof and on which a wire material W fed from a wire material-feeding means is wound; a clamping portion 22 which rotates integrally with the core bar 2 and grips an end of the wire material W on the core bar 2; and first guide rollers 30 and second guide rollers 40 for guiding the wire material W onto the core bar 2; wherein the first guide rollers 30 and the second guide rollers 40 are provided so as to move independently from each other in parallel with the axis of the core bar 2, and a coil spring formed by the above coil spring forming apparatus.

Abstract: Providing a coil spring manufacturing machine capable of adjusting the shape of a manufactured spring with fixing a wire feeding unit, followed by moving a shaping tool mounting member, attached to one or a plurality of movable members, in the front-rear, left-right, and/or up-down direction of the wire feeding direction. The shaping tool mounting member may be moved in all the three directions. Each movable member is provided with a drive source for driving the movable member.

Abstract: A spring manufacturing apparatus includes a supporting body which moves in X, Y, and Z-axes directions of a XYZ orthogonal coordinate system representing a moving direction of a wire rod fed from a wire rod feeding unit as a Z-axis. The supporting body is formed with an opening in which the quill is arranged. The supporting body further includes a tool holder for holding a processing tool for processing the wire rod to a spring. The supporting body arranged at the vicinity of the quill is moved to accurately adjust the relative position of the quill and the processing tool, thereby manufacturing a desired spring.

Abstract: A wire-forming machine, comprising a machine frame, a wire feeder and a wire guide for transporting wire to a working area of the machine where the wire is processed by one or more tools. The tools are affixed on a tool plate on the machine frame and around a recess formed in the plate. A wire is fed through the recess to the working area of the machine. The tool plate is fitted on a second plate and is displaceable along a first direction (x) relative to the second plate, while the second plate is displaceable along a second direction (y) relative to the machine plate. Both directions (x, y) have an inclination of 45° each to the vertical normal axis of the wire-forming machine and are perpendicular to each other.

Abstract: This invention provides an apparatus for manufacturing a helical part by feeding a wire W toward a pointing tool 21 and pushing the wire W against the pointing tool 21 to forcibly wind the wire. The apparatus comprises: a feed roller 12 for feeding the wire W toward the pointing tool 21; a wire feeding motor 111 for rotatably driving the feed roller; a grindstone tool unit 30, which holds a discoid grindstone 31 rotatable and movable, for cutting the wire W by the rotating discoid-grindstone 31; and a CPU 100 for controlling the wire feeding motor 111 and grindstone tool unit 30 to move the discoid grindstone 31 on a plane which is substantially perpendicular to a coil growing direction of the helical part and to cut the wire W in a direction which is substantially perpendicular to the coil growing direction.

Abstract: A swing bar is connected to a slide by attaching a first pivot to one end of the swing bar, and a bending die is mounted to the other end. A connecting piece is provided on the upper surface of the swing bar, and a second pivot capable of freely turning is inserted into a through-hole formed in the connecting piece, and then fitted into a guide groove formed parallel to the wire feeding direction in a guide member mounted to a second bending unit. Motors are connected to the slide and the second bending unit, respectively.

Abstract: A method for making a variable pitch spring (9), in which a spring wire (1) is bent using bending lugs (5, 6) so as to impart a spiral configuration thereto, a gap is formed between the turns by placing, between the turns being formed, the beveled side of a rotary disc (2) having a rotation synchronized with the spring wire supply, the disc (2) having a beveled profile that varies along the periphery of the disc, and the spring wire is cut (3) at the end of the formation of each spring.

Abstract: A method for forming a wave form for a stent includes providing a length of a formable material from a supply of the formable material in a feeder along an axis in a first direction in between a first forming member and a second forming member. The second forming member is positioned closer to the feeder than the first forming member. The length is about the length of a substantially straight portion of the wave form. The method also includes moving the first forming member in a second direction substantially perpendicular to the first direction to a position in contact with the formable material, and moving the second forming member in a third direction substantially opposite the second direction to wrap the formable material about a distal end of the first forming member.

Abstract: An object of the invention is to provide a manufacturing method and an apparatus for a twisted flat bar which can prevent the pitch from becoming inconsistent and makes it possible to process a long flat bar into a twisted flat bar. The manufacturing method for a twisted flat bar is characterized in that a flat bar (5) is sandwiched between two round bars (7), which are positioned so as to be inclined at the same angle in different directions relative to the longitudinal direction of the flat bar from the two sides, and the above described two round bars are rotated relative to the flat bar around the rotational axis in the longitudinal direction of the flat bar, and at the same time, the flat bar is moved in the longitudinal direction of the flat bar relative to the round bars.

Abstract: An apparatus for producing wire springs comprising: a first working station including a wire support and cutting means adapted to cut the wire against the support, a second working station including a rod about which the wire is wound, and clamping means for securing the wire against an end portion of the rod, these means being constituted by two controllable vices arranged in diametrically opposed positions with respect to the axis of the rod. In the portion thereof facing the rod, these vices are so shaped as to show a respective planar or slightly concave surface towards the rod. Wire cutting occurs according to a radial sectioning plane with respect to the support and is arranged so that the spring is cut in a manner that the wire remaining on said support is wound thereabout by an angle greater than 180°.

Abstract: A spring manufacturing apparatus comprises a tool support (30, 40, 50) which supports a tool in a way that the tool can be slid toward the spring forming space. A plurality of the tool supports can be arranged in a radial pattern from the spring forming space on the forming table. The apparatus also comprises a driving force transmission unit (70), attached to the tool support on the forming table, which transmits driving force to the tool support for sliding the tool. The tool support includes first and second tool supports for driving a tool by different driving methods. The first tool support (30) comprises a first driving mechanism (32) that transmits driving force of a common driving axis to the tool. The second tool support (40) comprises a second driving mechanism (41) that transmits driving force of the driving axis to the tool.

Abstract: A spiral pipe machine includes a feeding assembly for continuously feeding a web of material, and a forming assembly for accepting the web. The forming assembly bends the web to form a first section of a spiral pipe having a first predetermined diameter. A controller is employed for selectively instructing the forming means to change its configuration so as to give a second section of the spiral pipe a second predetermined diameter. The controller is capable of controlling the forming station to transition from the first predetermined diameter to the second predetermined diameter during the continuous feeding of the web.

Abstract: The compression spring former disclosed by the present invention contains an external diameter mechanism, spacing mechanism, wire-feeding mechanism, cutting mechanism, length-detecting mechanism, sorting mechanism, and microcomputer control mechanism. Within the working range, specific springs can be formed simply by inputting the parameters describing the external diameter, spacing, roll number, and other allowance requirements. The control mechanism has a built-in length detecting and automatic sorting mechanism, which can modify the spring spacing according to different free heights, ensuring the allowance of free height. The cutter has a working mode for repeated cutting. The lowest point of the cutter shaft is set to “0” degrees for cutting the springs. If the cutter swings from positive 20 degrees to negative 20 degrees, or from negative 20 degrees to positive 20 degrees, the spring will be cut. That is to say, a spring is produced in every rotation of 40 degrees.

Abstract: The slide motions of tools mounted on tool units (400A, 400B, 400C) are realized by a single ring gear (10) serving as a common driving force for all the tool units and arranged on a forming table (200), and cam shaft blocks (20) for transmitting the rotation force of the ring gear (10) to the tool units (400A, 400B, 400C). The cam shaft blocks (20) are formed separately from the tool units (400A, 400B, 400C). The angles of arrangement of the cam shaft blocks (20) on the forming table (200) can be changed independently of the tool units (400A, 400B, 400C).

Abstract: To efficiently manufacture springs having various kinds of shapes, a spring manufacturing machine is structured such as to bend a wire by two inner engagement projections (47) by adjusting a position of a position adjusting table (34), fitting a gap (46) to the wire fed out from a final wire guide (13) and temporarily stopping, and thereafter rotating a rotation spindle (48), and also to bend a wire on the basis of a cooperation of an outer engagement projection (44) and the inner engagement projection (47) by adjusting the position of the position adjusting table (34), fitting the gap (46) to the wire fed out from the final wire guide (13) and temporarily stopping, and thereafter rotating a rotation sleeve (45).

Abstract: In a cold coil forming process, a pitch control tool is moved in synchronism with the displacement of the outer diameter control roller so as to form a coil spring having a straight and oblique axial line, and, at the same time, maintain a pitch of the coil wire substantially constant substantially over an entire length thereof. Thus, the method of the present invention can be implemented by using a conventional coiling machine only if the outer diameter control roller and the pitch control tool can be adjusted as required by the present invention. In particular, the pitch of the coil spring can be kept constant over each turn of the coil wire without regard to the variation in the radius of curvature of the coil spring.

Abstract: A continuous thermoplastic wire is heated and fed into a coil forming apparatus having a rotative drum holding an injection nozzle so that it registers with and be linked in a common rotative movement to a threaded mandrel also supported by the drum. The wire discharged by the nozzle slidably engages the threads of the mandrel into a helical pattern, the mandrel being radially and coaxially surrounded by a cooled sleeve. The wire will thus solidify along the helical thread of the mandrel, to form a continuous plastic coil being discharged at the downstream extremity of the mandrel and sleeve assembly. Due to the fact that the drum, mandrel and nozzle all rotate in a common rotative movement, it is possible to select the direction and speed of rotation of the three last-mentioned elements so that the coil being discharged have an ouput discharge translational speed, while being exempt of any absolute rotational movement about its longitudinal axis.

Abstract: Plural types of tools are mounted on the tool selection table 210 so as to be selectable by rotation of the tool selection table 210. The tool selection table 210 is made movable by numerical control in the X, Y and Z directions, by virtue of the front-to-back table 206 movable in the front-to-back direction which is parallel to wire axis line L1, horizontal table 203 movable in the horizontal direction which is parallel to the front-to-back direction, and up-and-down table 209 movable in the up-and-down direction which is perpendicular to the front-to-back and horizontal directions.

Abstract: The invention relates to a ring bending machine for pipes and metal profile rods comprising two supporting shafts supported in spaced relation to one another in a carrier plate and rotatably driven, and a pressing shaft arranged centrically with respect to the two supporting shafts in a rotatable and adjustable manner, a slender cover housing surrounding the carrier plate, the shafts and their driving means, wherein in front of a first face side of which, on shaft ends protruding from the housing, bending rollers adapted to a profile to be processed and defining a bending plane are arranged. The invention further more relates to a supplementary frame for a ring bending machine.

Abstract: A housingless rolling mill having an upper and lower work roll, upper bearing blocks and lower bearing blocks for supporting the upper and lower work rolls, and screw-down cylinders for pulling the upper and lower bearing blocks vertically toward each other. The screw-down cylinder is tiltable with the use of upper and lower spherical. Legs of the lower bearing block are turnable in a roll cross direction. Lower cross cylinders are provided at the lower bearing block, and upper cross cylinders are provided at the upper bearing block to enable the work rolls to cross at an angle .theta.. Thus, a strip material is rolled to a satisfactory shape and thickness with the upper work roll and the lower work roll crossing each other.

Abstract: A split sealing member for a rotary shaft comprising a coiled body, with non-adjoined ends, having a plurality of turns about a central axis, bent along the course of the body such that the body is divided into a radially-inner portion and a radially-outer portion wherein the radially-inner portion defines a first plane and the radially-outer portion defines a second plane which is substantially transverse to the central axis.

Abstract: A system and method for extending work roll useful life and controlling workpiece profile during thickness gauge reduction of continuous metal strip by axially shifting rotating work rolls during rolling, applying work roll bending forces at locations for maximum leverage and enabling work roll dressing apparatus to be located such that detrimental strip processing conditions of the working zone are not encountering by the dressing apparatus; shortening of work roll length is made possible by the location of the dressing apparatus.

Abstract: A device for the manufacture of elastic springs for spring interior mattresses, vehicle cushions, cushions and the like. The springs are constructed from a row of continuous, spiral shaped parts arranged after each other. The device comprises a feeding tool (18) for the spring wire (6), a bending tool (20) for the wire adjustable in a plane essentially perpendicular to the feed direction of the wire, and a spring shaping tool (21), which can consist of two parallel plates between which the wire runs during the manufacturing of the spiral shaped parts of the elastic spring and which are turnable for the adjustment of the slope angle of the spring part. At least one gear transmission (22), which especially can be a planetary transmission, is arranged for the adjustment of the spring shaping tool (21) in predetermined rotational positions.

Abstract: Process for creation and adjustment, from one moment to the next, of the external force to apply by the feed assembly to the preformed forging in cold rolling mills of the "pilgrim process" type with rollers and mandrel for producing seamless tubes by means of a computer, in accordance with the geometric parameters of the contours of the rollers and of the mandrel and in accordance with the reaction generated during rolling in the roller supports, for lessening the risk of breaking the tube, reducing unit loads and raising productivity.

Abstract: To provide a rolling mill in which work rolls being supported horizontally by static pressure bearings wherein, even under the action of an excessive horizontal force, preventing contact between the work rolls and the static pressure bearings to ensure the production of a strip product free of flaw and superior in its surface quality. Work rolls are supported by static pressure bearings through idler rolls. The amount of offset of the work rolls are changed respectively by moving devices through static pressure bearings. Further, pushing cylinders generate a certain force through the static pressure bearings to bear the force provided from the moving devices.

Abstract: An apparatus for converting a length of metallic or other wire into a series of successive helical wire binders and for threading successive binders into rows of holes in the spines of successive stacks of sheets at a binding station includes an elongated guide defining an at least substantially continuous path for the wire from a wire inserting station to the binding station. The guide includes a rotary convoluting tool at the inserting station and a stationary cylindrical worm coaxial with the tool and extending from the latter to the binding station. Successive foremost binders are threaded into the rows of holes in successive stacks at the binding station and are severed from the respective following binders by a set of knives when the threading steps are completed.

Abstract: A method and apparatus are provided for forming the linear springs. In the apparatus three or more forming tools are arranged radially about the center of the quill for guiding the linear material are rotated within a predetermined angle about the centerline of the quill and are simultaneously advanced in the extension direction of the centerline of the quill perpendicular or substantially perpendicular to the centerline of the quill of the quill and collided against the linear material fed from the tip end portion of the quill to thereby always perform the formation of the linear spring, the apparatus being suitable for embodying this method is provided.

Abstract: A tool assembly 120 is attached on a forming table 101 movably in a vertical direction with respect to the forming table 101. The tool assembly 120 has a wedge tool assembly 140 which inserts a wedge tool between coils of wire W being continuously rolled by a coiling assembly 160 and growing coils having a predetermined pitch in an approximate normal-line direction with respect to the forming table 101, and a core block 123 which applies a cutting force to the wire W in cooperation with a cutting tool. This integrally moves the core block 123, the wedge tool and the like.

Abstract: The objects are a reliable and economical method of and device for manufacturing helical springs that are curved when unstressed from sections of wire or rod heated to coiling temperature. The spring is coiled straight and then curved it to its final shape. The device consists of a hot-coiling production line comprising a kiln (1), a series of rollers (2), a coiling bench (4), and a quenching tub (6). A tool (5) for curving helical springs (10 or 14) is integrated into the production line between the coiling bench and the quenching tub.

Abstract: An automatic spring formation apparatus includes a frame on which a tool support plate is mounted. A plurality of tool sets are substantially angularly equally-spaced mounted on the support plate and extending in a radial direction with respect to a center of the support plate. Each of the tool sets has a slide mounted thereon and movable in the radial direction with a tool holder which holds a spring formation tool thereon fixed thereon to be movable toward/away from the center of the support plate. The tool sets are releasably fixed on the support plate and are selectively movable along a circular path about the center of the support plate for adjusting the angular positions thereof. A wire is fed through a hole formed on the center of the support plate to be acted upon by the tool for making a spring. The slide is provided with a cam follower and a cam driven by a motor is provided on the base plate to drivingly engage the cam follower so as to drive the tool to move in the radial direction.

Abstract: In order to obtain better noise protection, longer service life of machine and tools, and to increase the productivity of wire shaping apparatuses, in particular, a universal spring winding machine with a cutting device (16) consisting essentially of a movable cutting tool (38) with drive (80) and a stationary cutting tool (150) at which the endless intaken wire is cut, this invention suggests:to conceive the drive of the cutting tool (38) in the form of a fluid operated cylinder piston aggregate cutting cylinder (80) with program-controllable NC valve (78);to fix the movable cutting tool (38) by means of an adapter (158) to the movable part of the aggregate (piston rod 154);to bring the moving direction of the latter (154) into accordance with the shearing direction of the movable cutting tool (38).

Abstract: A spring coiling machine has a rotary feed assembly with a servo motor for driving the feed rolls mounted therein and forming a part thereof. Substantially all tooling including a coiling tool, a pitch tool and an auxiliary arbor are also servo motor operated with three axes of servo control provided for the coiling tool. The auxiliary arbor has a plurality of wire forming positions and is also servo motor controlled.

Abstract: A spring coiling machine has a feed assembly with a servo motor for driving the feed rolls. Substantially all tooling including a coiling tool, a pitch tool and an auxiliary arbor are also servo motor operated with three axes of servo control including a "torsion" axis provided for the coiling tool. The auxiliary arbor has a plurality of wire forming positions and is also servo motor controlled. The "torsion" movement for the coiling tool is controlled by a servo motor-cam mechanism for accurate high speed operation with a high frequency of torsion movement of the coiling tool.

Abstract: A rolling mill for flat products characterized by a roll assembly including a pair of work-rolls confronted reciprocally, and support-rolls divided by not less than three partitions in a roll axiswise direction which are provided, independently, with load detector equipment; crown and flatness of the products can be estimated precisely and regulated without delay using the rolling mill.

Abstract: A device for bending tubes including a platform, a feeding mechanism having a sliding seat, a pair of lugs, and a chuck, a chuck controlling mechanism having a direction controller and a chuck driving gearing, an idle gear pivotally mounted on the sliding seat and constantly meshed with the feeding mechanism, and a bending mechanism having a right roll die, a left roll die, an upper roll die, and lower roll die each of which has a recess around a circumference thereof adapt to the shape of a tube to be bent, whereby a tube can be conveniently bent into a spiral or a curve as desired.

Abstract: Methods and apparatus for forming devices including dead-ends and insulator ties from flat and other strips of material, as well as the devices themselves, are disclosed. Components of these devices may be formed continuously from a single strip, avoiding the need to weld or clamp the components together. Forming the devices in this manner reduces the possibility of stresses or non-uniformities forming when the components are joined and permits continuous automatic or semiautomatic manufacture to occur.

Abstract: A gear rolling machine includes a pair of gear rolling dies for finish forming teeth on external gear blanks. A force sensor is mounted to the machine to monitor the amount of force applied to the gear blank by the rolling dies as one rolling die is infed toward the other during the rolling process. The sensor is electronically connected to a controller that stops the infeed when a predetermined force level is attained during the rolling process.

Abstract: The invention relates to a wire shaping device. State of the art: DE 39 15 784 C1 discloses a wire shaping device comprising a program controlled rotating and displacing head which carries shaping tools and on to which moves the wire arriving from a stationary wire intake device. DE 22 64 589 C3 discloses, in the context of a spiral spring winding machine, a device for simultaneously taking in and twisting the incoming wire for producing an initial tension in the spring body. One disadvantage of the known wire shaping device is the relatively limited shapes of wire which can be produced. It is an object of this invention to improve the known wire shaping device for the purpose of increasing the range of finished shapes of the wire structures.

Abstract: A close wound coil is formed by a sequence of steps including supplying a wire to be formed into a coil onto a rotating mandrel by means of a guide wheel and urging the wire against the mandrel by means of a pressure wheel so as to form a coil. The formed coil is allowed to free itself from engagement with the mandrel from a point immediately following that at which the wire is urged against the mandrel by the pressure wheel to the end of the mandrel so that the formed coil, although carried by the mandrel, is unrestrained relative to the mandrel.

Abstract: The apparatus of the present invention includes an externally threaded spindle to which one end of a thin walled metal tube is detachably secured. The spindle is rotated to wind the tube into the external thread, thereby producing a helix. As the tube is wound onto the spindle, it is pressed into the thread grooves by an auxiliary roller.

Abstract: A variable power input wire coiler for coiling wire of different diameters, singly, in tandem, or in triple form, there being interchangeable drive gears to the coiling rolls astraddle the mandrel, such gears being disconnectable from flexible drive shafts and replaceable with different diameter drive gears.

Abstract: A closely wound, coil type tension spring of one hand having an initial tension exceeding that obtainable by prior spring forming techniques is formed by reverse winding an open-wound compression spring of the opposite hand. Alternative methods and apparatus for forming the tension spring are disclosed.