US2872123A - Toroidal core rotator assembly - Google Patents

Toroidal core rotator assembly Download PDF

Info

Publication number
US2872123A
US2872123A US688757A US68875757A US2872123A US 2872123 A US2872123 A US 2872123A US 688757 A US688757 A US 688757A US 68875757 A US68875757 A US 68875757A US 2872123 A US2872123 A US 2872123A
Authority
US
United States
Prior art keywords
shaft
arm
rollers
shafts
secured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US688757A
Other languages
English (en)
Inventor
Kenneth P Gorman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US688757A priority Critical patent/US2872123A/en
Priority to CH6472958A priority patent/CH370485A/de
Application granted granted Critical
Publication of US2872123A publication Critical patent/US2872123A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01F41/06—Coil winding
    • 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
    • H01F41/06—Coil winding
    • H01F41/08—Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores

Definitions

  • the present invention relates to a toroidal core rotator assembly, particularly adapted to rotate a toroidal core during the winding of the core.
  • toroidal cores and consequently the manufacture of toroidal coils are beset with a great many problems which have materially increased the cost of the individual coil. This is particularly true in the case of the very small coils which are becoming increasingly popular in use.
  • One principal problem is the speed with which these coils may be manufactured.
  • the individual coil is mounted upon a conventional holder.
  • a split ring shuttle is then passed through the core and has thereafter a quantity of Wire wound onto the shuttle. After the quantity of wire is wound on the shuttle, the shuttle is rotated and the wire is dropped from the shuttle onto the core as the core itself is rotated in a selective manner.
  • the present invention provides a structure which is particularly adapted to support a core for rotation at a selected speed and for rotation in selected phases, with the device of the present invention providing precise .means for control of the rotation of the core.
  • the present invention also provides a mechanism which assures uniformity of rotation of the core during :the winding procedure as well as uniformity in the radial application of the wire to the core. This is accomplished in part by a mechanism which maintains the rotating core in a fixed axial position regardless of the number of layers of wire which have been wound onto it.
  • This particular mechanism is obtained principally by utilization of three individually and positively driven drive rollers, each tangentially contacting the core. These rollers are adapted to move simultaneously and uniformly away from the axis of the core as the windings build up about the core.
  • the present invention also provides means whereby one of the drive rollers may be readily removed from the locus of the core for facilitating the removal of the core after winding for the insertion of a new one.
  • the present invention provides means by which the drive rollers may be set to contact the toroidal core with a preselected amount of pressure, which pressure will be substantially maintained during the winding process.
  • Figure 3 is a bottom plan view
  • Figure 4 is a cross sectional detail taken substantially along the line 4-4 of Figure 2;
  • Figure 5 is a cross sectional fragmentary detail taken substantially along the line 55 of Figure 2.
  • a base 1 preferably formed of a cast metal.
  • This base is formed with a hollow or recessed bottom section 2.
  • a series of bosses 3, 4 and 5 project upwardly from the upper surface 6 of the base 1.
  • Coaxial shaft openings are provided in each one of these bosses containing respectively the shafts 7, 8 and 9.
  • a fourth shaft 10 extends upwardly through a fourth shaft opening in the base 1.
  • Bearing collars 11, 12 and 13 are interposed respectively between the bosses 3, 4 and 5 and the shafts 7, 8 and 9.
  • Bearing sleeve 14 is mounted between the shaft 10 and the collar 15. The collar 15 in turn is force fitted and rigidly supported on the base 1.
  • Each of, these shafts projects downwardly into the bottom section 2 and has mounted thereon equal diameter chain sprockets 16 which may be secured by suitable means as, for example, an Allen head screw passing through the collar of the sprocket and bearing against the shaft, as indicated at 17.
  • suitable means as, for example, an Allen head screw passing through the collar of the sprocket and bearing against the shaft, as indicated at 17.
  • the free ends of the chain 18 are connected together by a helical spring 19 which serves to remove or avoid slack in the chain.
  • the chain and sprocket arrangement thus described is designed to rotate the various shafts 7, 8, 9 and 10 simultaneously and at the same rate. Additionally and as best illustrated in Figure 4, means are provided for adjusting the tension against which the shafts may be rotated.
  • the shaft 9 is slit longitudinally at its upper end as indicated at 20.
  • a helical spring 21 formed of a flat band of spring steel has its inner end secured in the slot or slit 20 and its outer end secured to the pin 22.
  • the pin 22 is fixed in the collar 23 which in turn is coaxial with and mounted on the boss 5.
  • the collar 23 is secured against axial rotation in any selected position by set screws 24.
  • a cap 25 is mounted on the shaft 9 and secures the spring 21 in position.
  • the cap 25 in turn is secured to shaft 9 by the set screw 26.
  • the shafts 7, 8 and 10 carry respectively the arms 27, 28 and 29 which are adapted to rotate over limited arcs with the shafts. As will be noted from Figure 2 and as will be further explained hereafter, these arms 27, 28 and 29 may be rotated or pivoted toward a common point which is indicated at 30.
  • Arm 27 is secured to a collar 31 by means of screws 32.
  • This collar in turn is axial with the shaft 7 and is secured to it by preferably a pair of set screws 33.
  • Arm 28 is secured to a collar 34 by set screws 35 with collar 34 coaxial with shaft 8 and secured thereto by set screws 36 ( Figures 1 and 2).
  • a slide bar 37 is secured to collar 38 by a pair of screws 39.
  • This collar 38 is in turn secured to the shaft 10 with which it is coaxial by preferably a pair of set screws 40.
  • This collar 38 is preferably of the same diameter and longitudinally aligned with the adjacent collar 15. Coaxial with the collars 38 and .15 is an outer. collar or sleeve 41.
  • this collar 41 is segmented as indicated at 42, leaving a portion of the lower part of collar 38 exposed.
  • a set screw threaded into the collar.3,8 as indicated at 43 is adapted to contact the vertical wall 44 which forms a.portion of the segmented section.
  • the collar '41 is secured in any selected position of rotation by suitable means such as a set screw which threads through the base ofthe collar '41 and secures against the collar 15.
  • the arms "27, 28.and,.29 may :be permitted to selectively close under the tension of: spring 21 to a selected distance from the common point 30.
  • This arrangement greatly facilitates the insertion or removal of cores of. specifieddiameters.
  • the collar .41 may be provided with .a jknurled lower surface as indicated at 45 in order .to facilitate the selected positioning of this collar.
  • the arms 27, 28 and'29 are each individually shaped for particular purposes. Arm 27 extends radially from the shaft 7 and terminates in the roller 46.
  • Arm 28 extends diametrically across shaft 8 and'terminates at one end at roller '47.
  • the other end of arm 28 is provided with a finger-grip or pin 48 with the grip 48 extending upwardly and preferably normal to the surface of arm 28.
  • Arm 29 also extends diametricallyacross the shaft and terminates at one end at roller 49 with the other end provided with a finger-grip or pin 50 similar in arrangementto grip 48.
  • Top plate 51 of the arm 29 is formed with a slot or groove 52 which extends diametrically across its bottom surface.
  • the slide bar 37 is longitudinally positioned within this slot 52 and is secured therein by means of across member 53 positioned at one end of the arm 29 opposite the roller 49. This cross member 53 is secured in position by screws 54 extending into the plate 51.
  • the plate 51 which carries roller 49 may be secured in one of two positions indicated at Figure 2 in solid outline on one hand and dotted outline on the other hand. These selected positions are determined by the spring tensioued ballbearing or pin member 55 shown in Figure 5, which is adapted to sit in one of two recesses 56 and 57, formed in the bottom of slide bar 37 in This ballbearing 55 which projects through an opening in the plate 53 is tensioned upwardly by means of a leaf spring 58 against one endof which it bears. The other end of this leaf spring 58 is secured to the cross member 53 by the screw 59 As indicated above, the slotialong which the plate 51 is guided extends transversely and lengthwise of the plate. This particular arrangement has been found to be quite useful in preventing the accidental dislodgement of a toroidal core from between rollers 46 and 47 when the arm 29 is being moved.
  • the rollers 46, 47 and 49 are each similar in construction.
  • a vertical shaft 60 which as indicated extends through the ends of the arm with which it is associated.
  • a nylon annular member 61 which may be secured to the shaft 60 by means of a pin suchas illustrated at 62. If desired, the member 61 may be spaced from the arm by a washer 63.
  • a rubber roll 64 coaxial with and mounted on the sleeve 65, in turn mounted on shaft 49.
  • the shaft 49 is free to'rotate and carries with it the member 61 and roll --64.
  • This shaft 60 is in turn secured at-its bottom to flexible shaft 66 with which it is longitudinally aligned.
  • Shaft 66 may be provided with an internally threaded head as indicated at 67 into which the threaded lower end of shaft 60 may be secured.
  • a spacing member 68 may be interposed between the lower surface of the arm 29 and the head 67.
  • the shaft 66 as well as shafts 69 and 70, connected respectively to rollers 46 and 47, are flexible to permit adaptation to drive means of different types.
  • the lower end of shaft 66 should be provided with a pivotal joint as indicated at 71 so as to permit the longitudinal sliding of the arm 29 without the requirement of disconnecting the shaft 66 from the drive means.
  • the drive means referred to are secured at the lower end of the shafts 66, 69 and 7t) and should be of such a typeas to provide uniform simultaneous rotational drive to each one of these shafts. Moreover these lower ends of the shafts 66, 69 and 70 should be splined to permit vertical movement when the device is in operation and the arms 27, 28 and 29 are moved over their arcuate paths.
  • the shafts 66, 69 and 70 may be formed of some material which is torsionally stiff but longitudinally flexible as, for example, speedometer cable.
  • each shaft fixed and normal to its arm, and means synchronously engaging said shafts at their other ends for uniform rotation thereof.
  • a device as set forth in claim 1 wherein said synchronous means comprises sprockets of uniform ,diameter secured to thelower end of each shaft and op- .eratively interengaged by a chain.
  • A. device for rotatably supporting a toroidal core for winding comprising three rotatable rollers adapted to tangentially contact and support said core, drive means for said rollers comprising flexible shafts longitudinally aligned and secured one each with each of said rollers, arms, each rotatably supporting one of said rollers with the axis of each roller normal to its supporting arm, three shafts each supporting and fixed normal to one each of said arms, means synchronously engaging each shaft for uniform and limited rotation thereof comprising sprockets of uniform diameter secured to each shaft, a chain operatively interengaging said sprockets and means biasing said shafts in a selected rotational position comprising a second shaft and second sprocket mounted thereon with said second sprocket operatively interengaging said chain, a helical spring coaxial with and fixed to said second shaft at one end and to a rotatably adjustable member at the other end whereby saidhelical spring may be tightened or loosened about said second shaft, means for
  • a device for rotatably supporting a toroidal core for winding comprising a plurality of rotatable rollers adapted to tangentially contact, rotate and support a toroidal core, drive means for said rollers, arms, each rotatably supporting one of said rollers with the axis of each roller normal to its supporting arm, a shaft fixed to each arm and each extending normal thereto, and means for synchronously and uniformly rotating saidshafts, comprising means for rotationally biasing said shafts in a selected rotational position and means for simultaneously rotating said shafts against said rotational bias.
  • a device for rotatably supporting a toroidal core for winding comprising a plurality of rotatable rollers adapted to tangentially contact, rotate and support a toroidal core, drive means for said rollers, arms, each rotatably supporting one of said rollers with the axis of each roller normal to its supporting arm, a shaft fixed to each arm and each extending normal thereto, and means for synchronously and uniformly rotating said shafts, wherein said synchronous means comprises sprockets of uniform diameter secured to each shaft, a chain operatively interengaging said sprockets, and means biasing said shaft in a selected rotational position comprising a second rotatable shaft and second sprocket mounted thereon with said sprocket operatively interengaging said chain, a helical spring coaxial with and fixed to said second shaft at one end and to a rotatably adjustable member at the other end whereby said helical spring may be tightened or loosened about said second shaft.
  • a device for rotatably supporting a toroidal core for winding comprising a plurality of rotatable rollers adapted to tangentially contact, rotate and support a toroidal core, drive means for said rollers, arms, each rotatably supporting one of said rollers with the axis of each roller normal to its supporting arm, a shaft fixed to each arm and each extending normal thereto, means for synchronously and uniformly rotating said shafts, comprising means for rotationally biasing said shafts in a selected rotational position, means for simultaneously rotating said shafts against said rotational bias and means for limiting the rotation of said shafts comprising a collar having a segment section coaxial with one of said shafts and adapted to be fixed in a selected rotational position, and a projection extending outwardly from said one shaft within said segmented section.
  • a device for rotatably supporting a toroidal core for winding comprising a plurality of rotatable rollers adapted to tangentially contact, rotate and support a toroidal core, drive means for said rollers, arms, each rotatably supporting one of said rollers with the axis of each roller normal to its supporting arm, a shaft fixed to each arm and each extending normal thereto, means for synchronously and uniformly rotating said shafts, and means adapted to permit longitudinal movement of one arm whereby the roller on said one arm is adapted to be rnoved individually with respect to the other rollers.
  • a device for rotatably supporting a toroidal core for winding comprising a plurality of rotatable rollers adapted to tangentially contact, rotate and support a toroidal core, drive means for said rollers, arms, each rotatably supporting one of said rollers with the axis of each roller normal to its supporting arm, a shaft fixed to each arm and each extending normal thereto, means for synchronously and uniformly rotating said shafts, and means adapted to permit longitudinal movement of one arm comprising means forming a longitudinally extending slot in said arm, a slide bar positioned in said slot and secured to the one shaft for said one arm, and means securing said arm to said slide bar for longitudinal movement whereby the one roller on said one arm is adapted to be moved individually with respect to the other rollers.
  • a device a set forth in claim 8 wherein said slide bar is secured radially to said shaft, and said one roller is laterally spaced with respect to the longitudinal axis of said slot whereby said one roller will move 0bliquely with respect to said one shaft on movement of said one arm.
  • a device for rotatably supporting a toroidal core for winding comprising a plurality of rotatable rollers adapted to tangentially contact, rotate and support a toroidal core, drive means for said rollers, arms, each rotatably supporting one of said rollers with the axis of each roller normal to its supporting arm, a shaft fixed to each arm and each extending normal thereto, means for synchronously and uniformly rotating said shafts, and having means adapted to permit one roller to be moved obliquely with respect to the radius between said roller and the rotatable shaft supporting it whereby said one roller is adapted to be moved individually with respect to the other rollers.
  • a device for rotatably supporting a toroidal core for winding comprising a plurality of rotatable rollers adapted to tangentially contact, rotate and support a toroidal core, arms, each rotatably supporting one of said rollers with the axis of each roller normal to its supporting arm, a shaft fixed to each arm and extending normal thereto, a base in which the lower ends of said shafts are journalled, means located in said base for synchronously and uniformly rotating said shafts, and positive drive means including a flexible shaft coaxial with and secured one each to each of said rollers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Friction Gearing (AREA)
US688757A 1957-10-07 1957-10-07 Toroidal core rotator assembly Expired - Lifetime US2872123A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US688757A US2872123A (en) 1957-10-07 1957-10-07 Toroidal core rotator assembly
CH6472958A CH370485A (de) 1957-10-07 1958-10-06 Vorrichtung für die fliegende Abstützung eines Toroidkernes beim Bewickeln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US688757A US2872123A (en) 1957-10-07 1957-10-07 Toroidal core rotator assembly

Publications (1)

Publication Number Publication Date
US2872123A true US2872123A (en) 1959-02-03

Family

ID=24765653

Family Applications (1)

Application Number Title Priority Date Filing Date
US688757A Expired - Lifetime US2872123A (en) 1957-10-07 1957-10-07 Toroidal core rotator assembly

Country Status (2)

Country Link
US (1) US2872123A (de)
CH (1) CH370485A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383059A (en) * 1965-03-22 1968-05-14 Universal Mfg Co Toroidal coil winding machine
DE3124053A1 (de) * 1981-06-12 1982-12-30 Karl-Heinz Ramm Spezialfabrik für Spulen- und Kondensatorenwickelmaschinen Inhaber: Ingenieur Karl-Heinz Ramm, 1000 Berlin Ringwickelmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1841609A (en) * 1927-11-17 1932-01-19 Fisk Rubber Co Automatically adjustable wrapping machine
US2467643A (en) * 1944-01-26 1949-04-19 Micafil Ltd Ring winding machine
DE908281C (de) * 1951-12-02 1954-04-05 Julius Vernazza Vorrichtung zur automatisch zentrischen Lagerung von Werkstuecken, besonders geeignet fuer Ringwickelmaschinen
US2721708A (en) * 1952-05-09 1955-10-25 Paul H Rogers Self-centering toroidal core holding and driving fixture
US2727698A (en) * 1952-03-28 1955-12-20 Western Electric Co Toroidal coil winding machine
FR1107336A (fr) * 1954-01-12 1955-12-29 Micafil Ag Support d'anneau à dispositif d'avancement pour machines destinées à la confection de bobinages toroïdaux

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1841609A (en) * 1927-11-17 1932-01-19 Fisk Rubber Co Automatically adjustable wrapping machine
US2467643A (en) * 1944-01-26 1949-04-19 Micafil Ltd Ring winding machine
DE908281C (de) * 1951-12-02 1954-04-05 Julius Vernazza Vorrichtung zur automatisch zentrischen Lagerung von Werkstuecken, besonders geeignet fuer Ringwickelmaschinen
US2727698A (en) * 1952-03-28 1955-12-20 Western Electric Co Toroidal coil winding machine
US2721708A (en) * 1952-05-09 1955-10-25 Paul H Rogers Self-centering toroidal core holding and driving fixture
FR1107336A (fr) * 1954-01-12 1955-12-29 Micafil Ag Support d'anneau à dispositif d'avancement pour machines destinées à la confection de bobinages toroïdaux

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383059A (en) * 1965-03-22 1968-05-14 Universal Mfg Co Toroidal coil winding machine
DE3124053A1 (de) * 1981-06-12 1982-12-30 Karl-Heinz Ramm Spezialfabrik für Spulen- und Kondensatorenwickelmaschinen Inhaber: Ingenieur Karl-Heinz Ramm, 1000 Berlin Ringwickelmaschine

Also Published As

Publication number Publication date
CH370485A (de) 1963-07-15

Similar Documents

Publication Publication Date Title
US2793817A (en) Apparatus for winding coils
US2657866A (en) Uniform tension maintaining device
US2872123A (en) Toroidal core rotator assembly
US4358064A (en) Pipe wrapping machine
US4150772A (en) Planetary wheel advance for a meltable welding cable
US3050266A (en) Apparatus for winding wire on forms
US3727855A (en) Winding method and apparatus
JPS61282272A (ja) 線材巻付装置
CA1235407A (en) Cap assembly with friction drag on tension brush
US3482818A (en) Tape dispensing cable spinning machine
US2504020A (en) Strand tensioning apparatus
US3938751A (en) Device for continuously treating wires
US2425511A (en) Toroidal coil winding machine
US2271345A (en) Textile package holding device
US2285334A (en) Winding machine
US3359768A (en) Wire coiling
US3459384A (en) Toroidal core winding head
JP2670078B2 (ja) トロイダル巻線方法及びその装置
US2437101A (en) Length measuring apparatus in combination with a twisting machine
US2484282A (en) Wire stranding device
US1967144A (en) Winding apparatus
ES451189A1 (es) Dispositivo almacenador y alimentador de hilo preferentemen-te para maquinas textiles.
US2501039A (en) Bait casting reel
US2904271A (en) Device for winding flat annular bodies with very fine wires
US3764082A (en) Toroidal head winding machine