US3333779A - Device for winding small ring cores - Google Patents

Device for winding small ring cores Download PDF

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Publication number
US3333779A
US3333779A US458176A US45817665A US3333779A US 3333779 A US3333779 A US 3333779A US 458176 A US458176 A US 458176A US 45817665 A US45817665 A US 45817665A US 3333779 A US3333779 A US 3333779A
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United States
Prior art keywords
wire
disc
periphery
winding
core
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
US458176A
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English (en)
Inventor
Hans J Rey
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Micafil AG
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Micafil AG
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Filing date
Publication date
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Application granted granted Critical
Publication of US3333779A publication Critical patent/US3333779A/en
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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
    • H01F41/06—Coil winding
    • H01F41/08—Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores

Definitions

  • the present invention relates to an improved apparatus for winding ring type cores, especially cores having relative small dimensions of the order of magnitude of only a few millimeters.
  • Ring cores of this type are frequently used in electronic logic and impulse circuits. For most applications, these ring cores require only a relatively low number of winding turns. It is therefore imperative, in view of manufacturing costs, that all preparatory Work necessary for winding the cores, such as involve gripping of the core and threading of the winding wire, and which must be repeated on each core to be wound, be carried out quickly and easily.
  • the object of the present invention is to provide a more simple and less time consuming method for doing the preliminary Work involved in winding small-sized ring cores and a related simplified apparatus.
  • the wire provided for winding the core is held fast at its rear end, and its fore part, by making use of its inherent elastic stiffness, is pushed through the opening in the ring core to be wound by means of conveying elements and guide means leading from and to the ring core.
  • the improved apparatus for carrying out the method includes holding elements for the ring core and the winding wire, and is characterized in that holding elements for the fixation of the rear wire end are arranged, whereas for the guidance of the fore wire part from and to the ring core, gripped in the holder, two stationary guide means, one each below and above the ring core are provided for, each with an admitting and leaving end, that further between the ring core and the admitting end of the lower guide means rotatable conveying elements and, for the carrying over of the fore wire part from the leaving end of the lower guide means to the admitting end of the upper guide means, circulating conveying means are arranged, whereby the plane of the path of circulation with the admitting end of the upper guide means and the leaving end of the lower guide means is sideways displaced away from the other admitting and leaving ends of the guide means.
  • FIG. 1 is a side view of the wire threading apparatus for winding the ring core, and with certain parts shown in vertical section;
  • FIG. 2 is a front view of the apparatus in working condition, shortly after the winding process has started.
  • FIGS. 3-6 are views similar to FIG. 2 illustrating further work stages in formation of a winding loop.
  • a disc '1 is mounted for rotation about its axis, the disc being carried by a shaft 3 which is mounted in suitable bearings on a hearing plate 2.
  • One side of disc 1 runs close to the surface .of plate 2 and it is driven in the direction of rotation indicated by the arrow in FIG. 2.
  • An endless take-along belt 4 of suitable material such as rubber or plastic, partially embraces the periphery of disc 1, preferably about two-thirds of its circumference, and is supported by four pulleys 5 over which the belt runs.
  • belt 4 When disc 1 is rotated, then so also will the belt 4 be frictionally driven due to its running contact with a portion of the periphery of the disc.
  • a pair of axially parallel rotatable cylindrical rolls 6 are arranged laterally of the periphery of disc 1 for rota- 'tion about axes normal to the axis of rotation of disc 1.
  • rolls 6 in a holder Sin such manner as to permit the core to be easily attached and detached for winding.
  • Located directly below rolls 6 is the larger entrance end 9 of a horn-shaped, stationary guide channel 10, the other smaller, leaving end of this guide being disposed in close proximity to the periphery of disc 1 near the running-on point of belt 4, i.e. in the nip where belt 4 passes between one of the rollers 5 and disc 1.
  • Channel 10 is also open along its entire length in the direction facing disc 1.
  • the larger admitting end 12 of another horn-shaped, stationary guide channel 13 which is open along its entire length in the direction facing disc 1. The smaller, leaving end 14 of channel 13 is located closely over the opening in ring core 7.
  • the wire 15 to be wound onto the core 7 is cut to the required length, depending upon the number of turns to be wound on the core, and is fastened at its rear end in a simple clamping device 17.
  • the leading end of the wire is then inserted from above, through the opening in core 7, and thence into the nip between counter-rotating rolls 6 which carry the wire through the rolls and into and through guide channel 10.
  • the leading end of the wire leaves channel 10 at its exit end 11 and engages the periphery of disc 1 between the latter and belt 4, as indicated in FIG. 2.
  • the leading end of wire is driven around the periphery of disc 1 by the circular conveying means represented by the running contact between disc 1 and belt 4, as shown in FIG.
  • auxiliary channel member In order to facilitate and accelerate manual insertion of the leading end of wire 15 into the opening in core 7, a funnel-shaped auxiliary channel member, not illustrated, can be provided, this auxiliary channel member terminating close above the opening in core 7 and being mounted for a swivel motion if desired.
  • Apparatus for winding ring cores and especially cores of small dimensions which comprises a circular disc, means mounting said disc for rotation about its axis, an endless take-along belt embracing a portion of the periphery of said disc, said belt being carried on pulleys and running in contact with the periphery of said disc, wire 'feed means located adjacent that part of the periphery of said disc not embraced by said take-along belt, said wire feed means and the periphery of said disc having the same wire advancing speed, a holder for said ring core located adjacent said wire feed means, a first wire guide channel disposed between the wire leaving end of said wire feed means and the point on the periphery of said disc where said belt engages the periphery, a second wire guide channel disposed between the point on the periphery of said disc where said belt disengages itself from the periphery and said ring core holder, said channels being open in the direction facing said disc, and means for holding the rear end of the length of wire to
  • Apparatus for winding ring cores and especially cores of small dimensions which comprises a circular disc, means mounting said disc for rotation about its axis, an endless take-along belt embracing a portion of the periphery of said disc, said belt being carried on pulleys and running in contact with the periphery of said disc, a pair of feed rolls located adjacent that part of the periphery of said disc not embraced by said take-along belt and between which the wire is fed at a speed corresponding to the surface speeds of said rolls and disc which are alike, said feed rolls being arranged with their axes parallel and normal to the axis of rotation of said disc, means biasing said rolls into engagement with each other, the line of engagement between said rolls being located substantially in a plane which contains an end face of said disc which is bevelled, a holder for the ring core located above said pair of feed rolls and through which the leading end of said wire is first led by hand, a first wire guide channel disposed between the wire leaving side of said rolls and point on the perip
  • first and second wire guide channels are generally horn-shaped, the smaller end of said first guide channel terminating adjacent the point on the periphery of said disc Where said belt engages the periphery, and the smaller end of said second guide channel terminating adjacent said ring core.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
US458176A 1964-07-30 1965-05-24 Device for winding small ring cores Expired - Lifetime US3333779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1001864A CH410187A (de) 1964-07-30 1964-07-30 Verfahren und Vorrichtung zum Bewickeln von Ringkernen

Publications (1)

Publication Number Publication Date
US3333779A true US3333779A (en) 1967-08-01

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ID=4358456

Family Applications (1)

Application Number Title Priority Date Filing Date
US458176A Expired - Lifetime US3333779A (en) 1964-07-30 1965-05-24 Device for winding small ring cores

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US (1) US3333779A (de)
CH (1) CH410187A (de)
DE (1) DE1514191A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2019302A1 (de) * 1968-07-17 1970-07-03 Ibm
DE2351952A1 (de) * 1972-10-16 1974-04-25 Essex International Inc Vorrichtung und verfahren fuer die gestaltung einer wellenwicklung fuer dynamoelektrische maschinen
JPS56103068A (en) * 1979-12-10 1981-08-17 Varian Associates Shuttleeless toroidal core winder
US5282580A (en) * 1991-09-20 1994-02-01 Bryan Kent Method and apparatus for winding ring-shaped articles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732901A (en) * 1971-03-04 1973-05-15 Pulse Eng Inc Apparatus for winding ring-shaped articles
US4529138A (en) * 1983-08-29 1985-07-16 Westinghouse Electric Corp. Strip core winder for core-coil assembly
US4771956A (en) * 1985-08-02 1988-09-20 Hitachi, Ltd. Method of and apparatus for winding coil on toroidal core
EP0242536A1 (de) * 1986-04-17 1987-10-28 Siemens Aktiengesellschaft Ringkernspulen-Wickelvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865573A (en) * 1954-10-06 1958-12-23 Sperry Rand Corp Coil winder
US3000580A (en) * 1957-11-04 1961-09-19 Jr Mitchel J Matovich Coil winder
US3030038A (en) * 1957-08-26 1962-04-17 Burroughs Corp Toroidal coil winding machines
US3132816A (en) * 1960-08-29 1964-05-12 Kokusai Denshin Denwa Co Ltd Winding machine for magnetic cores of small size

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865573A (en) * 1954-10-06 1958-12-23 Sperry Rand Corp Coil winder
US3030038A (en) * 1957-08-26 1962-04-17 Burroughs Corp Toroidal coil winding machines
US3000580A (en) * 1957-11-04 1961-09-19 Jr Mitchel J Matovich Coil winder
US3132816A (en) * 1960-08-29 1964-05-12 Kokusai Denshin Denwa Co Ltd Winding machine for magnetic cores of small size

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2019302A1 (de) * 1968-07-17 1970-07-03 Ibm
DE2351952A1 (de) * 1972-10-16 1974-04-25 Essex International Inc Vorrichtung und verfahren fuer die gestaltung einer wellenwicklung fuer dynamoelektrische maschinen
JPS56103068A (en) * 1979-12-10 1981-08-17 Varian Associates Shuttleeless toroidal core winder
US4288041A (en) * 1979-12-10 1981-09-08 Varian Associates, Inc. Shuttleless toroidal core winder
JPH0141591B2 (de) * 1979-12-10 1989-09-06 Parusu Eng Inc
US5282580A (en) * 1991-09-20 1994-02-01 Bryan Kent Method and apparatus for winding ring-shaped articles

Also Published As

Publication number Publication date
DE1514191B2 (de) 1970-11-12
DE1514191A1 (de) 1970-11-12
CH410187A (de) 1966-03-31

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