US2462393A - Coil-winding machine - Google Patents

Description

Feb. 22, 1949. N. M. HAYNES COIL WINDING MACHINE Filed May 4, 1945 3 Sheets-Sheet l Feb. 22, 1949. N. M. HAYNES 462,393

` COIL WINDING MACHINE Filed May 4, 1945 3 Sheets-Sheet 2 Feb. 22, 1949. N. M. HAYNES COIL WINDING MACHINE 3 Sheets-Sheet 3 Filed May 4, 1945 vfor electrical coils.

Patented Feb. 22, 1949 A@onirrt STATE-s 'igrslNr *4o-'Fries COIL-WINDING MACHINE NathanM. Haynes, New Yoi'kQN. Y.

Application May 4, 1945511S`e11v--N0. '591,872

`11 Claims.

v1 `This Vinvention relates 'to `.Winding machines fand more,particularly to a windingapparatus .It is an object of this in- -vention to `produce an `eiiicienty compact, and

-simplified Windingfma'chine -which is adapted -to -form electrical Acoils 'and transformers `With rapidity and precision.

Another object of this invention is to produce an improved traverse mechanism .for `the Wire feeding means, 4the improvement being marked particularly in the provision of .special control `mea-ns which reduces to a minimum the number tof moving parts.

Another object of this invention is to provide @a convenientan'd extremely simplified and rapid method of Ksetting the traverse controls 'so Ythat the :traverse mechanism may reciprocate over the correct distance for producing coilshaving desired winding lengths.

Another "object of this invention is to produce coil Winding machinelin A'which the traverse 4mechani'sm is so regulated as to form coils `and transformers of vunusual symmetry, rthe Aturns `of which 'are disposed accurately and equally on p lboth sides of an'imaginary center `flin'e fthrough the center Aif the coil.

'Other objects of my inventionY will befapparent lfrom the following description thereof, it being understood that the above description fof the loloects of my invention are intended to Idescribe `fand not to limit it in any manner.

@Referring to the drawings:

IlIiig. 1 isa -top plan View of the machine.

Fig. 2 is a front elevation of a portion of the i machine.

f3 is a top plan View of the traverse control device.

Fig. V4 is a bottom View thereof. Fig. 5 i's-a side View thereof.

Fig. 6 is a sectional View of the mechanism. for

driving thetraverse 'shaft of Ithe Wire feeding means.

Fig. '7 isa schematic representation of Athe 'electrical controls which determinethe lengthV oi `traverse and direction'of' the wire feeding lmea'n's.

The operating' and control elements rof the machine are mounted on the frame lil. (Driv-ing power originates in the motor andis transmitted by clutch Cfand .pulley Il to the spindle t2 extending `from a hub lI3 and `journalled-atA-onecend -in bearing i4 whi-lethe other end rotates against the conical bearing l5.

coil form i6 ris =initia1l1ly-disposed fon 'the (spindle i12-so as'to formaifoundation "forthe `and lg, and gear 20.

traverse driven mechanism.

yBevel gear-24 transmits thedrivingpower to .thegear 25,1shaft`2 journalled at`21, and pinion .28. r win :opposite directions.

Pin-ionlS 'drives the .bevel gears V29 and 3i) As illustrated - inrFigjybevel gears 29 and 30 .are secured concentrically to and Within the cirvcumference of the inner facesof electro-magnetic assemblies'l and32 by screws33 so asto be at the magnetic ,neutral :position of the electro-- `magnets-where.they Will not become `rnagnetized and pick.' up metallic particles.

Thus, rotation-of bevel vgears 29and 30 in oppo- :site directions produces corresponding rotation :of `the electro-magnets `3l and 32. -The physical kconnection .of the electro-magnets and bevel gears :produces virtually unitary structures and it may be considered that the electro-magnets are .formed With` gearing .at one .face thereof.

)Both 'the `bevel gears .and .associated electromagnetic assemblies are ireein respectto the tlead screw shaft Siaroundivvhioh they rotate.

1'Suitable bushings 35 .and 36: are provided and .fa

"spacer collar :31 serves to maintain gi= ars2i and x39 .against` inward displacement.

.The :electro-magnetic assemblies 31 and :32

-compriseithe usualironficores .33 `and 3Q and coil windings lill fand f4 l, respectively. Retainer rings 1.62 and V#i3 #serve `.to .enclose the coil lWind-ings against accidental displacement.

Thezco'il winding '40 has one terminal 44' thereof grounded to the core l'whilethe other terminal ,is :le'd lthrough a .port `lll? to contact ring 41.' As will hereinafterappeal', the frame of the device and mechanismimounted thereon may constitute 4'one terminal "of the circuit and it is `therefore referred to as the ground `side of the circuit. Contact ring 41 is insulated.fromthefgrounded -icore 38 by the 'circular insulating memberA 48. 4'Ihusthe coil winding 4c is energized when -a Vs'uitalle electric potential is applied between the groundedstructure :and the contact ring fil.

Brush-49. serves to apply the electricpotential to thefcontact ring 41 during the rotation theredf. .Brush 49 is retained inthe brushhousing 50 and is provided with the usual coil spring and tightening blt 52 for insuring proper electrical contact.

Screw shaft 34 is provided with a compound bushing comprising a key 53 formed on a collar 54 which is secured to shaft 34 by set screw '55. Keyed thereby to the shaft 34 for slight axial movementl thereon but to rotate therewith, is clutch disk 56 which is adapted to be attracted to electro-magnetic assembly 3| when the coil 40 is energized. This action, as will hereinafter appear, will produce a driving engagement between the electro-magnetic structure and the clutch disk.

A clutch facing 31 of cambric or the like may be secured as by adhesive to the electro-magnetic assembly for both enhancing the frictional contact in the clutching action, and spacing the disk 56 from the core 3| to overcome the effects of residual magnetism when the coil winding is deenergized. AScrew shaft 34 is suitably journalled at 58, 59 and 89.

The electro-magnetic assembly 32 is of identical construction as assembly 3| above described including the clutch disk 6| which is keyed to the shaft 34 as is its counterpart clutch disk 59.

Referring to Figs. 1 and 2, the rotation of the screw shaft 34 produces the traverse action of the wire guiding structure 62. Follower 83 which travels along the screw shaft 34 in a direction dependent upon the direction of rotation thereof, is formed with arms 84 and 95 which support the traverse shaft 66. Traverse shaft 66 is suitably journalled in the bearings 61 and 68. Secured at 69 to the traverse shaft 69 so as to travel therewith is the wire guide structure 62, the beams of which 10 and 1|l support rollers 12 for guiding the wire W from the wire source or spools 13 to the coil support or spindle I2 for forming thel coil layers as illustrated in Fig. 1.

Wire `spools 13 are supported on individual shafts 14 which are journalled at their ends in bearings 15 and are supplied with any known type `of tension devices 16 for maintaining suitable 'l tension of the wire during the winding operation. Many types of known tension devices are applicable and a conventional type may be employed.

'nalled in bracket 85 and supports a pinion gear Pinion gear 96 meshes with gear 81 which is secured to the jack shaft 88. Secured to the end of the shaft 88 isa control member or control disk' 89 which rotates in a step down ratio when the lknob 9| is manipulated; Control member 89 is provided with two contact arms 99 and 9| whichl .are disposed near the periphery thereof and diametrically opposite each other.

A contact member 92 is secured at 93 to the traverse shaft 66. During the movement of the traverse mechanism the contact member 92 travels therewith but its travel is confined between the contact arms 90 and 9|. It can be seen that the separation of these contact arms in respect to the contact member 92 depends uponthe radial position of the control member 89. For example, the separation of the contact arms is greatest when a line connecting the arms would be perpendicular to the contact member 92. The separation would be least when the arms are in substantial alignment with the contact member 9E. Means to limit the minimum traverse adjustment is provided as hereinafter shown.

Referring to Fig. 3, it can be seen that the pointer 82 is at the 5 inch mark on the indicia 83 and that the contact arms and 9| are separated to almost the maximum distance in respect to contact member 92. Should the pointer be turned to the 6 inch mark the separation of the Contact arms would be greatest. Thus, the manual rotation of knob 8| over indicia 83 fixes or adjusts the separation of the Contact arms in respect to the contact member 92. Control member 89 constitutes a physical connection between the Contact arms which effectively gangs their operation so that simultaneous and identical movements are provided when knob 8| is actuated. The movements are considered identical with respect to contact member 92 because both con- Y tact arms move inwardly and outwardly simuli nut 91 cooperates with a nut 98 in locking the Earm 94 and control member 89 in a desired position. The slot 99 also serves to limit the minimum traverse of the traverse mechanism.

The electrical circuit which controls the traverse mechanism is set forth schematically in Fig. 7. Alternating current is shown as actuating the motor and relay mechanism while direct current is shown as energizing the electro-magnetic coils but this is illustrated for clarity only since it is obvious that other arrangements may be made. One terminal of the D. C. circuit may be grounded to the frame |'0 if desired so that the mechanism mounted thereon assumes ground potential.

In the operation of the device, one of the electro-magnetic assemblies is normally energized so that the traverse structure may travel in a direction depending upon which electro-magnetic assemblyis energized. It may be desirable or necessary under some circumstances to keep the wire guide from travelling. This can be done by opening the common of the D. C. circuit. When it is desired to keep the mandrel |2 stationary while the wire guide travels, a suitable clutch, not shown, on the mandrel may be disengaged.

In Fig. '7, assuming that the contact member 92 is travelling from left to right, it will ultimately make contact with contact arm 9|. This will energize coil 99 of the relay switch |00 and will attract the armature |0| Pawl |02 of armature |0| will thereupon advance ratchet wheel |03 which, being ganged to wheel |04, will shift wheel 04 so that a peak |05 rather than a valley |08 is uppermost. Pin |01 will be then in an elevated rather than in a depressed position and the electro-magnetic coil 40 will be energized.

This relay switch |00 is known in the art and is often referred to as a pulse relay since it is actuated by successive pulses to assume either one of two operating positions. Other types of 5S 'lays -or combinations maybe used, fthe desired function `fleeing fthe establishment ofcontact alternately-with the electro-magnets 3G 4and-531i ac'coxazling--to thesetting of control memberV L39. It willl-beaseenlthat `as contact member 92 strikes either @contact arm, the direction of the traverse mechanism. l`is reversed .since the then open relectro -magnetic structure becomes energized and, .takes .control Afof- .the rotation vor" .the `screw shaft 341while thelfunctioning electro-magnetic `becomes de-energized due to the .opening of .its yfci-rcuitby ithearrnature Il. Condensers may be .disposed across thecontacts `in the conventional Aaman-ner..to eliminateexcessive sparking. Lamps H11-and 4|118 aredisposed in .parallel across electrolmagnets-40 and 4l, respectively, and an arrow f-.together with the .words right .and .left will vimlicate the direction vof ytravel thereof. `A -manually operated control means is provided in IY,trieefiormpf y.pulse switch v92d which by-passes i @thecontrol disk `89 'and permits 4manual control yndependentlylof the contact member 92 or con- ;'tactarms Sil and 9|. Thuschanges may be made `instantly lwhen itis desired to depart from the .pre-determined settings.

lThe .machine is operated as follows:

.-11 Wire Wiisinitially secured around the spindle l2 and the knob is setfor the desired coil length, an operation :whichspaces contact arms 90 and #5.9L equidistantly `from an imaginary line which mepresents the centers yof the coils rto be formed. This yinsures lthe .production of an accurate and `.symmetrical coil winding. This construction has .other desirable features. For example, should gitfbe .required to xwind a transformer with a step down'secondary, the 'knob 8| may be re-set when lithe primary .has been Wound and the secondary will be formed in the precise central area of the primary -since fthe centers of both secondary and primary will be identical and the coils will be iwoundfsymmetrically on both sides of this center. A highlyl superior, transformer and one with balanced .leakage reactance may thus be formed `Awith a minimum 'of adjustment.

;The=contro1 member 48i! having been adjusted aand locked, lthe-traverse shaft 65 may be set so that the .contactmember 92 abuts the left contact armfill `The drive is then applied whereupon ftheftraverse'mechanism travels to the right while depositing .the winding over the paper iB. When the contact member 92 contacts the right control -arm 19|., the traverse mechanism will be shifted asoathat -it will Ktravel to the left. If desired, inr.sulating :paper maybe disposed over the wound .ilayers :after each traverse. The action is con- ;,tinued :until 'the required number of layers is produced.

It`will be seen .that there is provided an extremely compact and simplified mechanism which ,winds coils of considerable merit as regards mechanical and electrical symmetry and pre- Hcision. The electro-magnetic clutch mechanism `...markers possible the traversing action with a minimuml of moving parts since the virtual in- Y corporation of the electro-magnets into the reversible gears eliminates the necessity of a .pivoted clutch arm operated electro-magnetically.

"Thus, 'the electro-magnets are disposed directly around the screw shaft land the clutching action is A'accomplished without interrupting or estabilishing the meshing of gears each time a reversal ofthe traverse is effected. In addition, the trav- 'arse-control means is fool-proof and instantane- L flyfoperated. -'Ihesimple method of setting the Alinob 81 according tothe indicia V83eliminates many'iinwieldly and com-'plex settingsup'zoperaftions. If .largercoils- :are desired, :a control mem- 'ber -of :greater diameter may. be employed. The machine may be .employed 'Where winding cperations .such ias above set forth are required whether coils, transformers -or spools' of wire are to fbe Vproduced. It `is tolbegnoted, however, `that the follower :B3 :is neverdisengaged from the lead screw 4shaft 34. VNo .flag in their engaging .action :is possible. This-.olers Aa considerableadvantage in attaining a high degree of 1 precisionlsince any movement of the screw shaft is translated into vtraverse action whileprior artdevices which :do not main- ..tain :constant engagement permit relative move- .zment' until theengagement ybecomes complete Sand ei'ective. K i.

I havegshown 4a preferred embodiment. of my invention Abut it is ,obviousthat numerous changes and :omissions may be made `without departing from its spirit.

What is claimed is:

1. 4A co'ilswinding machine comprising Bij-,rotatable suppcrt for coil to be wound, `drive means for said support, a :wire simply, means ytc'deposit wire' from :said` supply itc lsaidj support `spas .to form a coil thereabout, traversemeans s'hiftable to, guide said ywire while being deposited on Vsaid support, .reversible drive means for said :traverse V.means whereby said .traverse` means .is moved -back and forth to' produce superimposed coil layers, said reversible 4drive means comprising ,a pinion gear and a pair 'of` bevel gears goppositely driven by said pinion gear, a screw shaft, each v,of said bevel igearsbeing rotatable around `land `free of said screwl shaft, a pair of electro-magnetic disks, each of said electro-magnetic disks :being secured to one of said bevel gears 1soias to be rotatable therewith, yapair of clutch disks 'lo'keyed to said .screw shaft, each `oi said clutch .disks `being mutually Vseparated by andfacing .saidelectrc-,magnetic disks so as to be' in respectiveoperative -relation thereto, an electrical con- `tact ring rotatable with each oi said Velectro- .1' magnetic` disks and adapted to transmit electric potential y.for .energizing :its associated electro- ;magneticdisk, .a `brush member bearing against each said contact ring for supplying saidpotential thereto, means to energize each electro-magnetic disk valternately according to the dimensions cf the coil to be formed whereby said shaft ,is driven alternately,V in` opposite directions, ,and

means to v.translate said alternate movements of .said shaftjintosaid `back vand `forth `movements `of said traverse'means.

. v2. A `coilyvindingmachine comprising a lcoll support, a ,wire supply, means to deposit'wire from said supply tosaidsupportso as to form coil windings thereabout, traverse means for causing relative lateral movement-between said depositing means and said :support so [as to deposit suc- .cessiveicoil turns laterally on said support, electro-magnetic reversible Vdrive means for said ltraverse :means, :and control, means for :regulating the :reversal of said electro-magnetic .reversible `drive means, said control means kcomrirising `a contact member on -said traverse means, acontrol member, a pair of spacedcontact arms `ilxedly connected to said ,control member, said spacing l.being,relativeto said 'contact -memper and ldepending upon the length of the coil ,to be formed, .andmeansto adjust said control member so as to simultaneously vary thespacing of both of said fcontact arms `relative ,to .said :control member.

:3.1i lcoil winding :machine .comprising a -coil support, a wire supply, means to`deposit wire from said supply to said support so as to form coil windings thereabout, traverse means Vfor causing relative lateral movement between said depositing means and said support so as to deposit successive turns laterally on said support, electromagnetic reversible drive means for said traverse means and control means for regulating the reversal of said electro-magnetic reversible drive means, said control means comprising Valcontact member on said traverse means, a control member, a pair of spaced contact arms on said control member, means to cause simultaneous in- -ward and outward movements of both said contact arms in respect to saidV contact member so as to vary the distance between said contact arms in respect to said contact member, said contact member being adapted to travel between said contact arms, and means to reverse the direction Vof said electro-magnetic reversible drive means each time said contact member meets either of said contact arms.

4. A coil winding machine comprising a coll support, a wire supply, means to deposit wire from said supply to said support so as to form coil windings thereabout, traverse means for causing relative lateral movement between said depositing means and said support so as to deposit successive coil turns laterally on said support, electro-magnetic reversible drive means for said traverse means, and contr-ol means for regulating the reversal of said electro-magnetic reversible drive means, said control means comprising a contact member on said traverse means so as to travel therewith, a control member, a pair of spaced contact arms on said control member between which said contact member is adapted to travel, the spacing of said contact arms relative to said contact member being adjustable so as to regulate the extent of travel of said contact member, said contact arms having a physical connection between them, a, manually operated member on said physical connection for causing simultaneous identical movement of both said contact arms relative to said contact member so as to vary said spacing of said contact arms relative to said contact member, and means to reverse the direction of said electromagnetic reversible drive means each time said contact member meets either of said contact arms during the travel of said contact member.

5. A coil winding machine according to claim 3 wherein said physical connection comprises a disk and wherein said contact arms are disposed adjacent to the periphery of said disk, said disk being rotatable by said manually operated member whereby both said contact arms may simultaneously approach or withdraw from said contact member as said disk is rotated.

6. A coil winding machine comprising a support for a coil to be wound, a'source of driving power, a wire supply, means to deposit wire from Vsaid wire supply to said support so as to form in opposite directions, and means to translate the alternate rotation of said shaft into a reversible drive for said traverse means, said electro-magnetic structures being rotatable around said driven shaft and free thereof, and means to: alternately energize said electro-magnetic structures whereby said attraction -between said structures and each of said clutch members respectively effects rotation of said shaft according to the alternate en-ergization of said electro-magnetic structures.

7..A coil winding machine comprising a coil support, drive means for said support, a wire supply, means to deposit wire from said supply to said support, traverse means shiftable to guide said wire while being deposited on said support, and reversible drive means for said traverse means, said reversible drive means comprising a shaft, a pair of oppositely rotatable electro-magnetic structures on said shaft and a pair of spaced vclutch members respectively and independently controlled by each of said electro-magnetic structures for alternately applying the rotating action of each of said electro-magnetic structures to said shaft whereby said shaft is alternately driven in opposite directions, said electro-magnetic structures being disposed between said pair of clutch members along said shaft.

8. A coil winding machine comprising a coil support, drive means for .said support, a wire supply, means to deposit wire from said supply to said support, traverse means shiftable to guide said wire while being deposited on said support, and reversible drive means for said traverse means, said reversible drive means comprising a shaft, a pair of oppositely rotatable electromagnetic structures on said shaft, a pair of gears for rotating said electro-magnetic structures respectively disposed against and within the circumference of the inner faces of said structures and concentric therewith and adjacent each other, means to rotate said gears in opposite directions and a pair of clutch members respectively, independently, and alternately actuated by said electro-magnetic structures for alternately applying the rotating action of each of said electro-magnetic structures toA said shaft whereby said shaft is alternately driven in opposite directions, each of said clutch members being on respectively opposite sides of said electro-magnetic structures.

9. A coil winding machine comprising a coil support, a wire supply, means to deposit wire from said supply to said support so as to form coil windings thereabout, traverse means for causing relative lateral movement between said depositing means and said support so as to deposit successive turns laterally on said support, electro-magnetic reversible drive means for said traverse means, and control means for regulating the reversal of said electro-magnetic reversible drive means, said control means comprising a rtravelling contact member, a pair of contact arms, said contact member being adapted to travel between said contact arms, means to reverse the direction of said reversible drive means each time said contact member meets either of said contact arms, and means to cause the simultaneous motion of both said contact arms relative to said contact member to adjust the length of the coil to be formed, said simultaneous motion causing means comprising a ganged connection between said contact arms and a manually operated member on said ganged connection for varying the spacing of said contact aims relative to the travelling contact member. y

10. A coil winding machine comprising a vcoil support, drive means for said support, a wire supply, means to feed wire from said supply to said support so as to form a coil thereabout, traverse means shiftable to guide said wire While being fed to said support, reversible drive means for said traverse means, said reversible drive means comprising a shaft, a pair of oppositely rotatable electro-magnetic structures on said shaft, a pair of clutch members on said shaft, means to alternately apply the rotating action of each of said electro-magnetic structures respectively to said clutch members by electro-magnetic attraction. whereby said shaft is alternately driven in opposite directions, said alternate rota tion applying means comprising a contact member on said traverse means, so as to travel therewith, a pair of spaced contact arms between which said contact member travels, means to alternately energize each of said oppositely rotating electromagnetic structures each time said contact member meets either of said contact arms during the travel of said contact member whereby a clutch member is engaged by said energized electromagnetic structure, the spacing of said Contact arms relative to said contact member being adjustable according to the length of the coil to be formed. said Contact arms being ganged for simultaneous and identical movement relative to said contact member during said adjustment thereof, and a manually operated member for eifecting said adjustment.

11. A coil winding machine comprising a coil support, drive means for said support, a wire supply, means to feed wire from said supply Vto said support so as to form a coil thereabout, traverse means shiftable to guide said wire while being fed to said support, reversible drive means for said traverse means, said reversible drive means comprising a shaft, a pair of oppositely rotatable electro-magnetic structures on said shaft, a pair of clutch members on said shaft, means to alternately apply the rotating action of each of said electro-magnetic structures respectively to said clutch members by electro-magnetic attraction, whereby said shaft is alternately driven in opposite directions, said alternate rotation applying mean-s comprising a contact member on said traverse means, so as to travel therewith, a pair of spaced contact arms between which said contact member travels, means to alternately energize each of said oppositely rotating electro-magnetic structures each time said contact member meets either of said Contact arms during the travel of ksaid contact member whereby a clutch member is engaged by said energized electro-magnetic structure, the spacing of said contact arms relative to said contact member lbeing adjustable according to the length of the coil to be formed, a disk for supporting said contact arms, said contact arms being disposed adjacent to the periphery of said disk, and a manually operated member for rotating said disk whereby both said contact arms may simultaneously approach or withdraw from said contact member as said disk is rotated so as to vary the spacing of said contact arms relative to said Contact member.

NATI-IAN M. HAYNES.

REFERENCES CITED The following references are of record in the le of this patent:

FOREIGN PATENTS

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