US3451632A - Toroidal winding machine - Google Patents

Toroidal winding machine Download PDF

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Publication number
US3451632A
US3451632A US591876A US3451632DA US3451632A US 3451632 A US3451632 A US 3451632A US 591876 A US591876 A US 591876A US 3451632D A US3451632D A US 3451632DA US 3451632 A US3451632 A US 3451632A
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US
United States
Prior art keywords
conductor
core
circuit
resistor
loops
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
US591876A
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English (en)
Inventor
Frantisek Jagos
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.)
Tesla AS
Original Assignee
Tesla AS
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 Tesla AS filed Critical Tesla AS
Application granted granted Critical
Publication of US3451632A publication Critical patent/US3451632A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Definitions

  • the conductor is guided between a pair of jaws one of which is pressed toward the other so that by way of these guide jaws the conductor is maintained under tension while being applied to the toroidal core.
  • an electric driving motor connected into a circuit which includes a resistor and a switch for connecting the resistor into and out of the motor circuit, the motor running at a slower speed when the resistor is connected into the circuit.
  • the switch is cam-controlled by a cam means which closes the switch when a loose conductor loop is released so that in this way the conductor loops are gently and continuously applied to the toroidal core.
  • the invention relates to a depositing device for a conductor to be wound by a shuttleless winding machine on a microtoroid core.
  • a microtoroid coil winding machine has already been disclosed operating in the following manner: A conductor which is to be wound on a toroidal ring-shaped core is prewound in several turns on two rollers in the re quired length and it is carried by these rollers so that it passes also through the toroidal core on which a coil is being wound.
  • the conductor is easily broken on the edge of the toroid core. This is due to the fact that while lifting the conductor from a carrier, the carrier forms a loose loop which cannot be introduced by the discriminating device accurately to such a degree that the conductor is placed uniformly on the toroid core. This device does not permit braking of the free conductor.
  • the depositing device for a conductor to he wound by a shuttleless winding machine on a microtoroid core is characterized by the fact 3,451,632 Patented June 24, 1969 that it comprises two jaws pressed against each other by an adjustable force and provided with a guiding surface for the conductor guided therebetween, and that it further comprises a braking device for slowing down the conductor to be wound on the core, the braking device being set into operation as soon as the guided conductor is released by the carrier.
  • the braking device comprises a resistor in the circuit of the electric driving motor of the winding machine, the position of the resistor in the circuit being controlled by a cam controlled switch. The angular position of the cam is derived from the angular position of the carrier.
  • FIG. 1 is a schematic elevational view of the device in accordance with the invention
  • FIG. 2 is a plan view
  • FIG. 3 explains in more detail the braking device.
  • the depositing device in accordance with the invention comprises two conveniently shaped jaws 1 and 2 each having a straight portion pressed against the straight portion of the other jaw by a spring 3.
  • the shape of the jaws 1 and 2 is such that they form almost on their entire circumference a guiding surface 4 for the conductor 5 which is guided :between these jaws before completion of each turn.
  • the conductor 5 to be wound on the toroid core 6 is reliably guided between the two jaws which are elastic-ally pressed one to the other and which are arranged in the close vicinity of the conductor 5 and it is also braked by a suitably adjusted pressure derived from the adjustable spring 3.
  • FIG. 2 shows a conductor supply 7 and a part 8 of the conductor 5 which has just been wound on the toroid core 6.
  • a resistor 12 for example of the variable type, is switched into the circuit of the electric driving motor 11 by means of a switch 10 controlled by a cam 9.
  • the driving motor 11 drives the mechanism which moves the carrier from which the conductor loops are released to be drawn also by way of a drive from the motor 11 onto the core 6.
  • the carrier moves along a predetermined path and will release the conductor loops at a given moment corresponding to the moment when the cam means 9 has an angular position bringing about the closing of the switch 10 so as to connect the variable resistor 12 into the circuit driving motor 11. This reduces the speed of the electric motor in the period of control and tensioning of the conductor.
  • the cam 9 is mounted so that its angular position at any moment is controlled by the angular position of the carrier of the conductor. At the moment when the carrier releases the conductor 5 for winding on the toroid core 6, the cam switches in the contact 10.
  • the pair of jaws 1 and 2 form a friction means for frictionally engaging and guiding the conductor loops as they are drawn onto the core 6.
  • the supply 7 of conductor loops initially extends through the core 6 so that as these loops are released to be drawn onto the core in response to the operation of the motor 11, the friction means 1, 2 will act to maintain the loops under tension.
  • the force of the friction means is adjusted by way of the adjustable spring means 3 which urges the jaw 2 toward the jaw 1.
  • the electric driving motor 11 is connected into the electrical circuit, shown in FIG. 3, which includes the variable resistor 12 capable of being connected into and disconnected from the circuit of the motor 11 by the switch 10.
  • the cam 9 forms a cam means for controlling the switch 10 to connect the resistor 12 into the circuit of the driving motor 11 in response to the winding of the loose loops onto the core 6, so that in this way the speed of the motor 11 is reduced when the loose loops are applied to the core, thus achieving a continuous gentle application of the conductor windings to the core.
  • an electric driving motor for the shuttleless winding of toroidal cores
  • friction means for frictionally engaging and guiding conductor loops as they are drawn onto a toroidal core in response to the action of said driving motor
  • an electric circuit in which said motor is located said circuit including a resistor and a switch for connecting said resistor into and out of the circuit of the motor to reduce the speed of the latter when the resister is connected into the circuit, and cam means coacting with said switch for controlling the latter to connect said resistor into said circuit when loose conductor loops are drawn onto the toroidal core by the action of said motor, whereby the speed of said motor is reduced to achieve with said friction means a continuous, gentle depositing of the loops on the core.
  • said friction means includes a pair of jaws between which the conductor loops are guided, and spring means coaeting with one of said jaws for urging it toward the other;

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coil Winding Methods And Apparatuses (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
US591876A 1965-11-12 1966-11-03 Toroidal winding machine Expired - Lifetime US3451632A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS675965 1965-11-12

Publications (1)

Publication Number Publication Date
US3451632A true US3451632A (en) 1969-06-24

Family

ID=5415324

Family Applications (1)

Application Number Title Priority Date Filing Date
US591876A Expired - Lifetime US3451632A (en) 1965-11-12 1966-11-03 Toroidal winding machine

Country Status (7)

Country Link
US (1) US3451632A (US06589383-20030708-C00041.png)
AT (1) AT270837B (US06589383-20030708-C00041.png)
CH (1) CH453500A (US06589383-20030708-C00041.png)
DE (1) DE1564928A1 (US06589383-20030708-C00041.png)
GB (1) GB1147668A (US06589383-20030708-C00041.png)
NL (1) NL6615324A (US06589383-20030708-C00041.png)
SE (1) SE336400B (US06589383-20030708-C00041.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734420A (en) * 1970-03-27 1973-05-22 Tesla Np Arrangement for driving of shuttleless coil winding machines of closed cores
FR2173137A1 (US06589383-20030708-C00041.png) * 1972-02-22 1973-10-05 Rca Corp
US4269366A (en) * 1979-04-10 1981-05-26 The United States Of America As Represented By The United States Department Of Energy Shuttleless toroid winder
US10998730B1 (en) 2019-04-26 2021-05-04 NeoVolta, Inc. Adaptive solar power battery storage system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758795A (en) * 1953-04-10 1956-08-14 Allis Chalmers Mfg Co Brake control for coil winding machine
US3000580A (en) * 1957-11-04 1961-09-19 Jr Mitchel J Matovich Coil winder
FR1337547A (fr) * 1962-08-31 1963-09-13 Micafil Ag Dispositif pour bobiner de petits noyaux annulaires

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758795A (en) * 1953-04-10 1956-08-14 Allis Chalmers Mfg Co Brake control for coil winding machine
US3000580A (en) * 1957-11-04 1961-09-19 Jr Mitchel J Matovich Coil winder
FR1337547A (fr) * 1962-08-31 1963-09-13 Micafil Ag Dispositif pour bobiner de petits noyaux annulaires

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734420A (en) * 1970-03-27 1973-05-22 Tesla Np Arrangement for driving of shuttleless coil winding machines of closed cores
FR2173137A1 (US06589383-20030708-C00041.png) * 1972-02-22 1973-10-05 Rca Corp
US4269366A (en) * 1979-04-10 1981-05-26 The United States Of America As Represented By The United States Department Of Energy Shuttleless toroid winder
US10998730B1 (en) 2019-04-26 2021-05-04 NeoVolta, Inc. Adaptive solar power battery storage system
US11605952B1 (en) 2019-04-26 2023-03-14 NeoVolta, Inc. Adaptive solar power battery storage system

Also Published As

Publication number Publication date
SE336400B (US06589383-20030708-C00041.png) 1971-07-05
GB1147668A (en) 1969-04-02
NL6615324A (US06589383-20030708-C00041.png) 1967-05-16
DE1564928A1 (de) 1970-04-09
CH453500A (de) 1968-06-14
AT270837B (de) 1969-05-12

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