US3579789A - Machine for the manufacture of relay coil bobbins - Google Patents

Machine for the manufacture of relay coil bobbins Download PDF

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Publication number
US3579789A
US3579789A US847535A US3579789DA US3579789A US 3579789 A US3579789 A US 3579789A US 847535 A US847535 A US 847535A US 3579789D A US3579789D A US 3579789DA US 3579789 A US3579789 A US 3579789A
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Prior art keywords
bobbin
cradle
prongs
machine
prong
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US847535A
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English (en)
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Lucien Ernest Grente
Roger Leveque
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Alcatel Lucent NV
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International Standard Electric Corp
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Assigned to ALCATEL N.V., DE LAIRESSESTRAAT 153, 1075 HK AMSTERDAM, THE NETHERLANDS, A CORP OF THE NETHERLANDS reassignment ALCATEL N.V., DE LAIRESSESTRAAT 153, 1075 HK AMSTERDAM, THE NETHERLANDS, A CORP OF THE NETHERLANDS ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: INTERNATIONAL STANDARD ELECTRIC CORPORATION, A CORP OF DE
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/10—Connecting leads to windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/02—Feeding of components
    • H05K13/028—Simultaneously loading a plurality of loose objects, e.g. by means of vibrations, pressure differences, magnetic fields
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5176—Plural diverse manufacturing apparatus including means for metal shaping or assembling including machining means
    • Y10T29/5177—Plural diverse manufacturing apparatus including means for metal shaping or assembling including machining means and work-holder for assembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/53174—Means to fasten electrical component to wiring board, base, or substrate

Definitions

  • the present invention relates to machines used in the manufacture of coils for electromagnetic relays. Its aim is the design of a machine for assembling connection prongs, and in particular, flat prongs, on bare bobbins of the type in which the prongs go through a raised edge of the bobbin flange. This machine makes it possible to insert these prongs in the flange, to raise their inside ends (to facilitate the soldering and expansion of the wires) and, when flat prongs are used, to twist their outside ends which will receive the wound connections.
  • the invention makes it possible to use continuous prong wire; in addition, the invention provides for magnetic cores and, in particular oval cores, to be simultaneously inserted in the said bobbins.
  • the machine comprises a coil bobbin bearing device made up of a mount and a cradle designed to receive a bare bobbin and mounted to slide in guides on the said mount; a prong feed device, adapted to feed a set of prongs and to hold them in feed position, and outside means for driving the cradle on its mount, with the bare bobbin therein, towards the prong feed device, so as to engage the bobbin flange on the said prongs; a slide member assembled in the cradle so as to fit under the inside ends of the prongs inserted in the flange in order to raise them, and outside means to drive the slide member in the cradle for this operation; if needs be, a twisting device, adapted to twist the prongs, and outside means for driving the cradle on its mount, with the bobbin bearing its prongs, towards the said device, so as to present the outside ends of the prongs for twisting an ejector assembled
  • the prong feed device has a supply of several continuous prong wires (for instance, several reels of prong wire), means to feed out wire, a prong length at a time, and means to cut these wires in order to sever a set of prongs and to hold the said set of prongs in feed position while the cradle containing a bare bobbin moves forward to engage a flange of the bobbin on this set. of prongs.
  • the prong feed device comprises a prong wire reel bearer; wire straightening guide, a sliding puller which reverses along the continuous wires (at the output of the straightening guide) and which then moves forward pulling out a fresh prong length of wire; and a trimmer which cuts the wires moved forward by the puller and which is associated to a press which holds the prongs severed as above in feed position while the cradle containing a bare bobbin moves forward to engage a flange of the bobbin, and which reverts to position of rest to enable the cradle to reverse with the bobbin bearing the prongs and to enable the puller to move forward pulling out a fresh prong length of wire.
  • This device preferably operates as follows: (1) the trimmer and its press starting from rest, working stroke of these devices; 2) working stroke of cradle and reverse stroke of the puller; .(3) trimmer and press revert to rest position; (4) reverse stroke of cradle and pulling stroke of the. puller.
  • the slide member comprises a frame assembled for sliding between the bobbin and the bottom of the cradle, said frame having two slanting ends which fit under the prongs to raise them and a thrust member which restricts its travel in the cradle.
  • the twisting device is located in such a way, and travel of the means which drive the said slide members is such that the said means control both the travel of the slide member in the cradle and the travel of the cradle on its mount towards the said device, so that both operations, which raise the inside ends of the prongs and feed their outside ends to the twisting device, are effected in a single movement.
  • the twisting device comprises a set of revolving hollow shafts which have ends adapted to accommodate the ends of the flat connection prongs, and means such as pinions solid with the said revolving hollow shafts and associated rack bars to make all these shafts revolve in a limited rotation so as to twist the connection prongs which are fed in, by
  • the machine comprises a wheel which bears several bobbin bearing devices and which revolves and stops in front of work positions which include in particular (a) a position where a bare bobbin is placed in an empty cradle; (b) a position in front of prong feed device and which cooperates with the outside means that drive the cradle towards this device; (c) a position which cooperates with the outside means that drive the slide member into the cradle and in front of the twisting device, in case there is one, towards which these same means will drive the cradle; (d) output position of the machine at which the bobbin bearing its prongs is ejected from the cradle, outside means such as an inclined plane, designed to push the ejector, and which are located so as to operate during the transfer between positions (0) and (d).
  • the machine also comprises a magnetic core feed device, in particular for oval magnetic cores, which comprises a hopper adapted to receive a load of cores, a slanting shoot equipped with means to push the cores forward, side by side, down to an outlet spout, and outside means to push one core at a time forward into the bobbin located in the cradle.
  • a magnetic core feed device in particular for oval magnetic cores, which comprises a hopper adapted to receive a load of cores, a slanting shoot equipped with means to push the cores forward, side by side, down to an outlet spout, and outside means to push one core at a time forward into the bobbin located in the cradle.
  • the machine comprises adevice adapted to align and push forward, side by side, on a flat surface, the cores into a slanting shoot from a loading funnel which receives the loose cores.
  • This device comprises a cylinder equipped with three small peripheral rollers which revolve freely around their axes and are located at from one another. The rollers, during the rotation of the roller-carrier cylinder, pass under the shoot at a distance corresponding to the gauge of a core, and the cylinder effects about one-third revolution every time a core is inserted in the bobbin.
  • the machine comprises a vertical turret wheel which bears eight bearing devices spaced out at 45 intervals, and which revolves and-stops in front of the following eight positions: 1) horizontal rising position designed to place a bare bobbin in an empty cradle; (2) position located 45 above the former, in front of the core feed device and which cooperates with the outside means which push a core into bobbin; (3) high vertical position, in front of the prong feed device, which cooperates with outside means which drive the cradle towards the said device; (4) position located 45 below the former, in front of a device which adjusts the position of the core in the bobbin; (5) horizontal descending position, in front of the twisting device, which cooperates with the outside means which drive the slide member into the cradle and also drive the cradle on its mount towards the said device; (6) position located 45 below the former not equipped; (7) low vertical position where the bobbin equipped with prongs and a core is ejected from the cradle, outside means
  • the four upright positions l (3), (5) and (7) are used to arrange conveniently devices such as the prong feed device and the twisting device, to conveniently place the bare bobbins in the empty cradles, and to discharge the bobbins ejected from the machine.
  • the intermediate positions located at 45; in particular (2) and (4), serve as work positions for feeding in and adjusting the magnetic cores.
  • FIG. 1 shows a completed bobbin equipped with its connection prongs and a core
  • FIG. 2 shows in perspective a receiving cradle and its mount, a bare bobbin which will be placed in said cradle, a magnetic core which will be housed in the bobbin and a set of four prongs which will be inserted in a flange of the bobbin,
  • FIG. 3 shows, in a plane, the cradle recipient of bobbins and its mount
  • FIG. 4 shows a side view of the recipient cradle and its mount
  • FIG. 5 shows a schematic vertical cross section of the cradle recipient of bobbins, in cooperation with a prong feed device and a jack destined to push the cradle bearing a bobbin towards this device,
  • FIG. 6 shows schematically the device which supplies the prongs from a reel of flat wire
  • FIG. 7 shows a vertical cross section of a portion of the device in the preceding diagram, allowing for the feeding of the prong wire
  • FIG. 8 shows a frontal cross section of a further portion of the diagram shown in FIG. 6, allowing for the holding and length sectioning of the connection prongs,
  • FIG. 9 shows a side view of a part of the cradle recipient of bobbins, called slide member, and which allows for the cambering of the inside ends of the connection prongs,
  • FIG. 10 shows a plane view of the same part
  • FIG. 11 shows a schematic cross section of the cradle recipient of bobbins showing a portion of the cradle in cooperation with the prong twisting device and the jack destined to push the cradle and the slide member, bearing a bobbin equipped with prongs, towards the twisting device,
  • FIG. 12 shows a schematic vertical cross section of the twisting device for the connection prongs
  • FIG. 16 shows a front view of this machine
  • FIG. 17 shows a plane view of the said machine.
  • FIG. 1 shows a completed bobbin with a magnetic core and connection prongs, the inside parts of the latter, which will have the winding wire soldered to them, being cambered to facilitate the hooking on of the said wires.
  • FIG. 2 shows one of the grips 1 used in the machine according to the invention. This figure shows:
  • connection prongs 6 opposite the bores provided for them in the rear flange 7 of bobbin 2.
  • the coil manufacturing machine comprises a turret wheel 8, mounted between two flanges 9 and 10, disc 10 being absent in order to show the wheel; the turret revolves around a shaft 11 and comprises on its circumference eight grips 12-1 to I28 located at 45 from one another and designed to receive the relay bobbins.
  • Narrow board 13 and member 14 serve as a guide to engage a bobbin (FIG. 2) in recipient cradle 4 of the grip in position l2--I.
  • FIGS. 2 to 5 show a grip like the one shown in 12I, 122, etc. of FIG. 15.
  • This grip has two main parts; mount 15 and cradle 4; the cradle 4 can slide in fixed mount 15 whilst connection prongs 6 are being fitted.
  • the relay bobbin 2 shown in FIG. 2 is assembled with slight friction in seating 3 of cradle 4 (FIGS. 2, 3 and 4), front flange 16 projecting beyond and on the left of mobile cradle 4 and causing level 17, mobile around shaft 18 to rock, thus indicating the presence of a bobbin in the grip.
  • Rear flange 7 takes up its position in a recess 19 of mobile cradle 4.-
  • the part shown in FIGS. 9 and 10 can slide along the bottom of the recipient cradle and is maintained in the position shown in FIGS. 5 and I I thanks to spring 20.
  • This part thanks to its sloping ends 21, allows the cambering of connection prongs 6 once they have been inserted in flange 7 of the bobbin.
  • FIG. 5 shows a grip in its work position in which prongs 6 are about to be inserted in the bores of rear flange 7 of the bobbin.
  • jack 22 In this position jack 22 is energized, its piston 23 bears on front flange 16 of the bobbin which moves with cradle 4 from left to right of the figure compressing spring 24 in its travel. Prongs 6 are moved into feed position and maintained by pressing device 25 in the position shown in the said figure.
  • FIG. 6 shows the device which feeds the connection prongs 6 starting from the prong wire reels. It comprises:
  • a device 34 through which the prong wires are fed and which comprises testing spikes 35 to control miniswitches 36 in order to ascertain that prong wire is present in the feed channel of the device;
  • a trimmer 40 having as many blades 41 as there are prongs 6, a pressing device 25 and a jack 42 which drive them.
  • puller 39 In its travel from reel 33 to trimmer 40, puller 39, moved by jack 43, pulls out a length of wire equal to the length of a prong; at the end of its travel, jack 42 of the trimmer is energized, pressing device 25 comes into contact with the wire and maintains its, then, while the piston continues its stroke, blades 41 cut the wires; jack 43, the other side of which is energized, causes the return of the puller, which reverts to its rear position in view of pulling out another length of wire for the next operation. Pressure is maintained in jack 42 in order to hold the prongs during the insertion of the said prongs in the bobbin.
  • FIG. 7 is a schematic cross section of puller 39. It can be seen that a roller 44 held in the wire feed channel via spring 45 and which forms a wedge, blocks this wire and drives it as the puller moves in one direction (from right to left) whereas the wire slides in its channel when the puller moves in the opposite direction, the roller slightly compressing the springs.
  • FIG. 8 shows a schematic cross section of the trimmer, perpendicular to the feed of the prong wires.
  • the two parts comprising the head of the trimmer are also shown: the head proper 40, in which the four blades such as 41 are mounted, and the pressing device 25 through which the blades pass freely, while the said pressing device is held in its remote position by springs 46.
  • FIG. 9 shows a side view of the slide member which, at the lower part of the grip cradle, allows for the cambering of the inside of the connection prongs. It comprises a frame 29 shown in a plane in FIG. 10, a heel 28 on which bears the piston of the jack which is designed to drive the frame. It also comprises sloping ends 21 which slide under the inner prongs and cambers them several degrees. Two springs 20, housed under the long sides of the frame 29 and held by heel 28, push the slide member back into its position of rest after the prongs have been cambered.
  • FIG. 11 shows, in section, a grip in the work position in which the connection prongs will be sent and twisted.
  • piston 26 of jack 27 bears on heel 28 of the device shown in FIGS. 5 and 6. Since a spring 24 is used which has less resistance than spring 20, cradle 4 is moved by the jack from left to right. The outside part of each prong 6 thus engages a corresponding recess in hollow shafts 31 shown in FIG. 12. At this point, the cradle is butting against the twisting device 96 and slide member 29 moves forward compressing spring 20. During their stroke, sloping ends 21 of slide member 29 come into contact with the ends 30 of prongs 6 and camber them towards the bottom of the figure. An endof-stroke stop (not shown) energizes jack 32 which drives the racks, thereby causing the hollow shafts to effect a quarter revolution. Jack 26, after a delay, reverts to its rest position under the action of springs 24 and 20, the bobbin bearing cradle and the cambering part 29 revert to their original position.
  • FIG. 12 is a schematic section of the device which effects the twisting of the tails of the prongs.
  • the device comprises four shafts 31 comprising a longitudinal recess 47 designed to receive the end of the tail 6 to be twisted; each shaft comprises at its rear end a pinion 48 geared on a rack 49, all racks being solid with the piston of jack 32. During their downward stroke, the racks cause the shafts 31 to effect a quarter revolution.
  • FIG. 13 shows, in section, the magnetic core feed device. It is made up of a loading funnel 50 which, at its open end 51, receives loads of magnetic cores, and of a spout 52 in which the cores 5 are laid side by side, by a cylinder 53 equipped with three rollers 54. Finally an outlet spout S5 is adapted to present a core opposite an empty bobbin conveyed by the machine at the beginning of the operation cycle (grip in position 12-2).
  • FIG. 14 shows part of cylinder 53 and of the three rollers 54.
  • This figure illustrates the implementation according to a known structure, of a free wheel comprising three balls 56 held by means of springs 58, in the angle formed by the inside of a cylinder 53a solid with a toothed wheel hidden behind the cylinder, and by flats 57 in cylinder 53 that bears rollers 54.
  • the utility of the said free wheel will be discussed in conjunction with the. general description of the operation of the machine.
  • Said cylinder 53 equipped with three nylon rollers 54 is made to revolve by jack 63 every time a core is placed in a bobbin.
  • Jack 63 drives piston 64 hinged to a toothedsector 65 (FIG. 16) which operates a gear wheel 66 solid with cylinder 53a, in order to arrange the cores side by side in the shoot in such a way that the said cores are suitably fed into a grip in position 12-2.
  • FIG. 16 toothedsector 65
  • FIG. 13 shows cores 5 which fall due to gravity, in the neck of the shoot; core 5-1 which has effected a quarter revolution, triggered off by cant 67, has moved into a position perpendicular to the axis of shoot 52, i.e., the position desired for it to be introduced by piston 68 of jack 69 in the bobbin presented by a grip in position 12-2 (FIGS. 16 and 17).
  • core 5-2 for instance, will be turned round when a roller 54 passes over it so as to pass between the bottom of shoot 52 and cylinder 53 in a flat position so as to slide down in turn and reach position 5- -1.
  • Movement of wheel the turret wheel revolves 45 at a time and is suitably locked in each position.
  • Each of its movements comprises: checking of departing conditions in all the working positions unlocking 45 revolution and locking in the following position.
  • Insertion of core (position 2): After checking that a bobbin is present in the cradle and simultaneously:
  • Prong shaping (position 5): After checking of the bobbin:
  • Bobbin ejection After position 5, the movement of the wheel causes the roller of the ejector associated to the cradle to rise on a fixed rail. The rise of the roller is suspended during the halt at position 6 which is not equipped. At position 7, the roller reaches its high position, and the coil falls out of the cradle (which is turned upside down at this position) and into the outlet shoot of the machine. The ejector operates regardless of the presence or absence of a bobbin in the cradle.
  • the fixed rail changes its direction after position 7 thus enabling the ejector to revert to rest position before position 1 due to the action of the drawbacksprings.
  • the operation of the ejector is suspended during the halt at position 8 which is not equipped.
  • a bobbin is introduced into the grip at position 12-1 being guided on device 14 (FIG. 17), rear flange 7 designed to receive the connection prongs being located on the right of the figure.
  • the placing of the bobbin entails the following: front flange 16 slides on lever 17 (FIGS. 2 and 4) thus causing the shift of thrust member 70. Said thrust member will close the contact of miniswitch 71 which will signal that a bobbin is set at position 12-2.
  • lever 17 would be at rest and contact maker 71 would not be operated, thus preventing power from reaching jack 69.
  • the contact makers corresponding to the subsequent positions of the grip would not be energized and the corresponding jacks would not operate.
  • the turret wheel effects one-eighth of a revolution.
  • contact maker 71 the cam of which is repelled by boss is operated thus allowing jacks 69 and 63 to operate.
  • Jack 69 via its piston 68, pushes a core which has reached position 5-1 (FIG. 13) into the bobbin presented by the grip standing in position 12-2'.
  • a thrust member 72 (FIGS. 16 and 17) prevents the mobile part or cradle 4 of the grip from moving while the core is being placed in the bobbin.
  • toothed wheel 66 drives cylinder 530 which effects one-third revolution.
  • toothed device 65 reverts via a drawback spring, not shown, to its initial position without driving the cylinder 53, thanks to the free wheel device accommodated in the left-hand part of cylinder 53a, solid with toothed wheel 66 (FIG. 14).
  • boss 70 operates a contact maker 97 whereby jack 42 operates.
  • the latter makes the trimmer-press (unit -40) descend and pinch the strips and trim the prongs.
  • Adjusting screw 78, solid with piston of 42, closes the contact 79 which supplies jacks 22 and 43.
  • the mobile part 4 shifts towards the prongs pinched by 25; the bores in flange 7 then meet the prongs and the latter are inserted into the bores.
  • jack 43 via its piston 75, reverses to pull forward another length of wire for the next operation.
  • jack 42 and piston 23 revert to rest position.
  • the press-trimmer unit (25-40) having released the inserted prongs, the mobile cradle reverts to its initial position and by 59 doing, attracts a contact maker, not shown, supplying jack 43, piston 75 drives puller 39.
  • the strips from which the next prongs will be cut and which travel through devices 34, 37, 39 and 38, gripped by the four rollers 44 (FIG. 7) are driven forward and a length of strips corresponding to the length of a prong is engaged under presstrimmer 40.
  • adjusting screw 76 When it reaches the end of its travel, adjusting screw 76 operates contact maker 77, the latter checks that jack 43 has returned and the return of all devices 69, 22, 83, 27, 32, 42 and 43 (FIG. 17) is checked by the respective contact makers, this being the departing condition for the turret wheel.
  • jack 83 (FIG. 17) is supplied by a contact maker hidden by loading funnel 50. This contact maker is operated by boss 70 which checks that a bobbin is present in the grip. Jack 83 thrusts its piston 84, which comes into contact with the core to accurately set it in the bobbin.
  • piston 84 Upon reaching its rest position, piston 84 operates end-ofstroke contact maker 86 thus allowing the turret wheel to be supplied; the latter again effects one-eighth revolution.
  • connection prongs are cambered several degrees to facilitate the soldering of the wires and the outside part is twisted 90 so as to place the connection ends in a vertical plane.
  • lever 17 operates contact maker 87 which cuts pressure on piston 32 and enables said piston to rise to its rest position, moreover, by reaching rest position; contact 91 allows the turret wheel to effect one-eighth revolution (departing condition for the wheel).
  • a machine for manufacturing coils for electromagnetic relays comprising cradle means for mounting a bare bobbin inserted in to guides on a mount in said cradle, prong feeding means for inserting prongs into said bobbin, slide means in said cradle for engaging the flange of said bobbin under the inside ends of said inserted prongs to raise said ends in said bobbin; means for driving said cradle bearing said bobbin to a twisting means so as to engage the outside ends of said prongs attached to said bobbin for a twisting operation, and an ejector means mounted under said cradle to slide through the bottom of said cradle for ejecting said bobbin from said cradle at the output of said machine.
  • a supply of continuous prong wires is provided in said prong feed means and including means for feeding out said wire a prong length at a time, and means for cutting said wire to sever said prongs and to hold the said prongs in feed position while said cradle containing a bare bobbin moves forward to engage said flange of said bobbin.
  • the machine of claim 2 including prong wire reel bearer means, wire straightening guide means, puller means which reverse along said continuous wires and moves forward pulling out a fresh prong length of wire, a trimmer means for cutting said wires moved forward by said puller means, said trimmer means being associated with a press means which holds said severed prongs in feed position while said cradle containing said bare bobbin moves forward to engage said flange of said bobbin and thereafter reverts to rest position to enable said cradle to reverse with said bobbin bearing said prongs.
  • said slide means further comprising a frame assembled in guides between said bobbin and the bottom of said cradle, said frame having two slanting ends which fit under the inside ends of said prongs to raise them, and a thrust means which limits the stroke of said frame in said cradle.
  • twisting means comprises hollow shafts, the number of hollow shafts being equivalent to the number of prongs borne by said bobbin, said shafts effecting a one-fourth revolution responsive to a single movement comprising the completion of the cambering operation of the inside ends of said prongs and the continuation of the movement of said cradle to engage the outside ends of said prongs in said hollow shafts.
  • twisting means comprises revolvinghollow shafts having at their ends a recess adapted to accommodate the ends of flat connection prongs, and means connected to said revolving hollow shafts and associated rack means for revolving said shafts so as to twist said connection prongs which are engaged therein.
  • the machine of claim 6 including a turret wheel bearing several bobbin bearing means, said turret wheel revolving and halting in front of a plurality of work positions.
  • magnetic core feed means comprising a loading funnel means for receiving a load of cores, means for causing the cores to move forward, side by side, up to an outlet spout, and means for feeding said cores into said bobbin positioned in said cradle.
  • the machine of claim 8 including cylinder means having around its circumference three roller means, said roller means turning freely about their axis and positioned at intervals of 120 from one another, said rollers passing under said shoot at a distance corresponding to the gauge of a core responsive to the rotary movement of said cylinder causing said cores to align and move forward on their flat side, side by side, in said core feed means.

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  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
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US847535A 1968-07-31 1969-08-01 Machine for the manufacture of relay coil bobbins Expired - Lifetime US3579789A (en)

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FR161268 1968-07-31
US84753569A 1969-08-01 1969-08-01

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US (1) US3579789A (enExample)
BE (1) BE736839A (enExample)
FR (1) FR1583575A (enExample)
GB (1) GB1238089A (enExample)
NL (1) NL6911370A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060108472A1 (en) * 2004-11-19 2006-05-25 Clark Walter D Control system for an aircraft
CN111128604A (zh) * 2020-03-04 2020-05-08 厦门星河创自动化科技有限公司 一种继电器的理线机构及理线方法
US20220329031A1 (en) * 2019-07-05 2022-10-13 Weidmüller Interface GmbH & Co. KG Terminal supply clip

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390428A (en) * 1965-12-23 1968-07-02 Western Electric Co Apparatus for fabricating coil supporting bobbins with terminals attached thereto
US3409972A (en) * 1966-06-08 1968-11-12 Joseph J. Cervenka Machine for applying terminal lugs to coil forms and the like
US3438124A (en) * 1967-06-08 1969-04-15 Reynolds Metals Co Apparatus for and method of winding material means to form coil means

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390428A (en) * 1965-12-23 1968-07-02 Western Electric Co Apparatus for fabricating coil supporting bobbins with terminals attached thereto
US3409972A (en) * 1966-06-08 1968-11-12 Joseph J. Cervenka Machine for applying terminal lugs to coil forms and the like
US3438124A (en) * 1967-06-08 1969-04-15 Reynolds Metals Co Apparatus for and method of winding material means to form coil means

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060108472A1 (en) * 2004-11-19 2006-05-25 Clark Walter D Control system for an aircraft
US20220329031A1 (en) * 2019-07-05 2022-10-13 Weidmüller Interface GmbH & Co. KG Terminal supply clip
US12208496B2 (en) * 2019-07-05 2025-01-28 Weidmiiller Interface GmbH & Co. KG Terminal supply clip
CN111128604A (zh) * 2020-03-04 2020-05-08 厦门星河创自动化科技有限公司 一种继电器的理线机构及理线方法

Also Published As

Publication number Publication date
GB1238089A (enExample) 1971-07-07
FR1583575A (enExample) 1969-11-14
BE736839A (enExample) 1970-02-02
NL6911370A (enExample) 1970-02-03

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