Abstract: To regulate the wire tension, a wire tension regulator is disposed on a winding device for electrical coils. A return roller and a contact roller can be mounted on the regulator for prebraking of the winding wire. The winding wire is subsequently wrapped 360.degree. around a wheel brake. The wheel brake is driven in the forward and backward directions of the wire by a d.c. motor. A strain gauge is disposed between the brake wheel and the winding device. The d.c. motor generates a signal indicating a rotor position to a motor control unit which transmits the position as an amplified signal to a control device and, as a derived set value wire tension signal which also reaches the control device. In addition, a set value wire tension signal of a machine control unit or a set value wire tension signal of a wire tension preset is provided to the control device. The set value of the wire tension is compared with a signal representing the instantaneous wire tension.

Abstract: A multiple coiling machine for winding electrical coils with different coil wires and different coil wire gauges . A wire guide head is pivotally mounted on a support and has at least two wire guides offset from each other. The wire guide head is pivotable so that one of the wire guides is in a winding position and the other wire guide is in a stand-by position. Two clamps are positioned on the head adjacent the pivot axis of the wire guide head. The wire guide head has a slit in the shape of an arc through which a pair of reversing pins is disposed at a distance from each other on the support. Two clamps and two wire guides are provided on opposite sides of the arc. The coil wire is guided around the reversing pin and can be pulled back into the appropriate wire guide by means of the clamp which is pivotable into the stand-by position. The wire guide head is mounted in a bore of the support by means of a pin, so that it is pivotable. A pair of stop faces limit the pivoting movement of the wire guide head.

Abstract: A work piece carrier which has a base plate adapted for frictionally engaging a conveyor belt is disclosed. At least two semicircular supports, open at the top, are rigidly connected with the base and are disposed at a distance to each other. A retaining pin for coil wire remnants is disposed between the two supports of the work piece carrier. A removable auxiliary carrier with a coil body is seated in or removed from each support crosswise to the longitudinal extension of the conveyor belt, where a cylindrical body of the auxiliary carrier has at least one, preferably two auxiliary retaining pins for coil wire ends. In one embodiment, reversing pins are axially disposed at a distance from each auxiliary retaining pin on the cylindrical body of the auxiliary carrier for forming loops of the coil wire. In this way the length of the wire end sections can be varied, for example for subsequent manually performed finishing of the completed coil.

Abstract: An insulating apparatus for the application of a nonadhesive insulating tape (15) to the winding of an electric coil (8) comprises a first pressure head (2) for receiving an adhesive tape (9) and the non-adhesive insulating tape (15). In an alternative embodiment, a second pressure head (18) is located above the first pressure head (2) and faces the latter; both pressure heads being displaceable from a rest position into a working position. The adhesive tape (9) is fed from a supply roll (10) over a stress relief device (11) and the nonadhesive insulating tape (15) is fed from another supply roll (16), with both tapes (9, 15) being held by suction on a support surface of the corresponding pressure head (2 or 18). Each pressure head (2, 18) is equipped with a blade (3 and 4) for the cutting of the tapes (9 and 15). In the alternative embodiment, after the adhesive tape is bonded to the coil, it draws the insulating tape onto the coil, so that the insulating tape is being wound together with the adhesive tape.

Abstract: An insulating apparatus for the application of a nonadhesive insulating tape (15) to the winding of an electric coil (8) comprises a first pressure head (2) for receiving an adhesive tape (9) and the non-adhesive insulating tape (15). In an alternative embodiment a second pressure head (18) is located above the first pressure head (2) and faces the latter; both pressure heads being displaceable from a rest position into a working position. The adhesive tape (9) is fed from a supply roll (10) over a stress relief device (11) and the nonadhesive insulating tape (15) is fed from another supply roll (16), with both tapes (9, 15) being held by suction on a support surface of the corresponding pressure head (2 or 18). Each pressure head (2, 18) is equipped with a blade (3 and 4) for the cutting of the tapes (9 and 15). In the alternative embodiment, after the adhesive tape is bonded to the coil, it draws the insulating tape onto the coil, so that the insulating tape is being wound together with the adhesive tape.

Abstract: An insulating apparatus for the application of a nonadhesive insulating tape (15) to the winding of an electric coil (8) comprises a first pressure head (2) for receiving an adhesive tape (9) and the non-adhesive insulating tape (15). In an alternative embodiment, a second pressure head (18) is located above the first pressure head (2) and faces the latter; both pressure heads being displaceable from a rest position into a working position. The adhesive tape (9) is fed from a supply roll (10) over a stress relief device (11) and the nonadhesive insulating tape (15) is fed from another supply roll (16), with both tapes (9, 15) being held by suction on a support surface of the corresponding pressure head (2 or 18). Each pressure head (2, 18) is equipped with a blade (3 and 4) for the cutting of the tapes (9 and 15). In the alternative embodiment, after the adhesive tape is bonded to the coil, it draws the insulating tape onto the coil, so that the insulating tape is being wound together with the adhesive tape.

Abstract: An apparatus for winding rotors of electrical machines including a winding device for small forms with several winding axes. A coil winding axis of the form is always positioned and fixed coaxially with the axis of the winding tool and wound upon the rotation of the winding form by the winding tool, while the wire guide carries out a predetermined displacing motion for the winding of layers. Back and forth displacement of the wire guide results in a more uniform coil winding with a higher fill factor. Winding by means of the rotation of the winding tool integrated with the coil form holder takes place at rpm's that are several times higher than those of conventional winding machines.

Abstract: A multiple spindle winding machine includes a conveyor belt for advancing a plurality of workpiece carriers frictionally engaged thereto to a winding station and a processing station. Each workpiece carrier includes at least two spaced apart coil holding fixtures rigidly secured to a base plate and cooperable with the winding station. A lifting device having guide rails laterally displaced from the conveyor elevates one of the workpiece carriers from the conveyor belt to the winding station. The winding station includes a wire guide and a cutting device mounted to a pivotable arm for providing wire to be wound around a coil. Wire residue is collected by a holding pin positioned on the workpiece carrier.

Abstract: To improve the twisting of wire ends on a coil form having contact pins axially located with respect to a winding shaft, a swivel shaft is provided on each coil holder of a coiler tool. One end of the swivel shaft is in the form of a driving pin and the other in the shape of a fork. The fork shaped end of the swivel shaft is capable of engaging a driving pin located on a rotating drive shaft. The coil holder is in the form of a strap and tiltable. The wire ends are cut by a wire cutting device that is displaceable vertically with respect to a wire guide. The contact pins with the wire ends twisted on them in a parallel manner may serve simultaneously as plug-in pins for printed circuits.

Abstract: The automatic winding of extremely small electrical core coils, for example video core coils, takes place on a rotatable winding unit which cooperates with a wire drawing apparatus provided with a catch hook. Each coil former receiver is provided with an associated wire mount. During the winding, the coil former together with the coil former receiver is immobile wherein the wire section of the winding wire necessary for each core coil is drawn from a wire storage coil over a wire deflector. During the winding of the core coil the rotatable winding unit, together with a plurality of wire retainers arranged in a vertically adjustable winding head, can be positioned so that the catch hook passes horizontally not only through one of the wire retainers but also through the core opening in the coil former. After applying the winding wire to one limb of the coil former during the withdrawal of the catch hook through the core opening, the cyclic rotation of the wire retainers then takes place through 270.degree.

Abstract: The present invention relates to a plug-in arrangement for circuit boards and a process for tin plating contact pins of the arrangement. The present invention improves the tinning of winding end portions of a winding about nonmetallic contact pins on coil forms. The contact pins are adapted for connection with printed circuits. The present invention discloses contact pins in one piece, or with multiple parts, which pins are given a profiled configuration on an outer surface. The contact pins may have different profiled shapes or configurations including grooves. In the case of multiple part contact pins, gaps are provided between the parts. The grooves or gaps permit the escape of gas generated upon the burning of an enamel insulation layer on the winding end portions. Also, the end portions rest above bottoms of the grooves or gaps such that the end portions are surrounded with tin solder.

Abstract: The disclosure embraces a transmission gear for the wire guide of a coil winding machine and includes a rotary input shaft, a pair of electro-magnetic clutches, with each of the clutches having a toothed rack; each of the racks is connected to a rectilinearly movable carriage whereby when one or the other of said electro-magnetic clutches is actuated, the carriage will be moved by the associated toothed rack in a selected direction; limit switches are provided to reverse the direction of travel of the carriage by deactivating a given electro-magnetic clutch and activating the other of said clutches.

Abstract: The disclosure embraces an apparatus for reinforcing segments or selected lengths of wire such as that used in electric coils by continuously forming a desired number of loops of the wire and then twisting the formed loops together at their midpoint to reinforce the tensile strength of the wire product; the apparatus provides means for forming the loops such as at a point upstream of a coil winding machine and a twisting device for engaging the thus formed loops and twisting them about an axis to form a reinforced length of wire which is then fed to the coil winding machine.

Abstract: The disclosure embraces an apparatus for handling wire at a work station of an electric coil making machine where conductive wire is wrapped around a spool to form an electric coil with a number of spools being carried from work station to work station on spool carriers mounted on a turret head; at a final work station a pair of clamps are mounted on arms which are pivoted from a rest position to a clamping position to grasp and hold the wire extending between adjacent spools on the turret head while the wire is severed by a knife; the length of wire between a spool and an adjacent clamping device is then wrapped on a connecting peg of an individual spool until the wire is broken; the clamping device is then pivoted back to its rest position for disposal of the wire remnants held by the clamping device.

Abstract: The disclosure embraces a soldering apparatus which includes a vessel having an open top for containing a molten soldering material such as tin, a ladle having a scoop portion and a tank which is connected to the scoop by a pipe; the ladle is movable into and out of the vessel whereby the tank and scoop will become filled with the soldering material upon submergence of the ladle in the vessel; the tank has a selected dimension and lower height relative to the scoop so that the soldering material will form a meniscus bubble over its surface which will be free of slag or oxidation material to thereby present a clean soldering bath to the elements to be soldered when the tank is raised out of the soldering bath of the vessel.

Abstract: A device for securing the winding ends of coils on terminal pins of the coil body comprising a rotatably driven coiling member having an axial aperture for receiving a terminal pin, a groove extending axially through the coiling member and arranged eccentrically with respect to the axis of rotation of the coiling member, for accommodating the end of a winding, the groove being alignable on rotation of the coiling member with a longitudinal slot in a bearing of the coiling member so as to allow the winding end to pass through the slot into the groove.

Abstract: A vessel for containing molten solder has a cover movable by a drive so as alternately to uncover and cover the molten slag in the vessel. A slag stripper is also movable by the drive during uncovering movement of the lid to remove slag skin from the molten solder.

Abstract: A device for applying adhesive tape to wire coils comprising a support pivotable between an operative and inoperative position and carrying a pressure pad for urging tape against a wire coil. A slide on the support is movable towards and away from the pressure pad and carries a roller for pulling tape towards the pressure pad when the slide moves in that direction. A cutter is movable between the slide and the pressure pad for cutting the tape.