US3343752A - Coil winding machines - Google Patents

Coil winding machines Download PDF

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Publication number
US3343752A
US3343752A US526564A US52656466A US3343752A US 3343752 A US3343752 A US 3343752A US 526564 A US526564 A US 526564A US 52656466 A US52656466 A US 52656466A US 3343752 A US3343752 A US 3343752A
Authority
US
United States
Prior art keywords
main shaft
cam body
wire guide
coil
coil former
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
US526564A
Other languages
English (en)
Inventor
Lenders Wilhelmus Leonar Louis
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.)
US Philips Corp
North American Philips Co Inc
Original Assignee
US Philips Corp
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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3343752A publication Critical patent/US3343752A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
    • 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

Definitions

  • the invention relates to a coil winding machine comprising a main shaft, a coil former support connected with said shaft, a wire guide for the wire to be wound, a rotatable cam body controlling the wire guide relatively to the coil former so that the desired coil is obtained and a transmission mechanism between the main shaft and the cam body.
  • the main shaft i.e. the shaft on which the coil is wound
  • the main shaft performs a given number of revolutions when the wire guide performs a single reciprocatory movement.
  • the difference between the number of revolutions of the main shaft and of the cam body controlling the wire guide is obtained by means of a transmission mechanism.
  • Accurate winding of coils, particularly with a small wire diameter gives rise to difficulties, since the main shaft with the coil former and the shaft with the cam body are capable of performing a slight axial movement, for example due to clearance and wear. Therefore winding coils of very thin wire often gives poor results due to the axial movements of the coil former and the cam -body relative to each other, even if this movement is very slight.
  • resilience due to inertia forces for example in the wire guide may be the cause of faulty winding.
  • the invention has for its object to provide a coil winding machine in which this disadvantage is obviated.
  • the cam for driving the wire guide is hollow and connected with a gear wheel journalled on the main shaft, the side of said wheel remote from the cam body bearing on a stop on the main shaft.
  • the main shaft is surrounded by a spring, one end of which bears on the gear wheel and the other end on a shoulder of -a coil support arranged in line with the main shaft.
  • FIGURE 1 is an elevational view, partly in section, of the coil winding machine according to the instant invention.
  • FIGURE 2. is a perspective view of the wire guide and cam body connection.
  • a motor 1 drives the main shaft 2, the end of which is provided with a coil former support 3.
  • the main shaft 2 has a gear wheel 4, which engages a gear wheel 6, -rigidly secured to a shaft 5.
  • the shaft 5 is furthermore provided with a gear wheel 7, which co-operates with 3,343,752 Patented Sept. 26, 1967 a gear wheel 8.
  • the gear wheel 8, which may be made of a metal or a synthetic substance, is journalled at 9 on the main shaft 2.
  • the overall transmission ratio of the gear wheels may be any determined value.
  • the gear wheel 8 has secured to it a hollow cam body 10, for example by means of screws 18.
  • the cam body 10 governs, upon rotation, a wire guide 11, which is pivoted at 12 to part of the machine frame.
  • the wire guide 11 has a finger 13 with an aperture 14 for guiding the wire to be wound (not shown).
  • the wire is wound on a coil former (not shown), arranged on the support 3 and bearing by one end on the shoulder 15 of the support 3.
  • the support 3 is secured on shaft 2 by a threaded shaft 16 in a threaded lbore of the shaft 2 so that the shoulder 15 of the support 3- abutts against the enlarged end of the main shaft 2.
  • a spring 17 which urges the gear wheel 8 against a stop 19, rigidly secured to the shaft 2.
  • This stop is preferably formed by a steel disc having an annular, projecting rim 20, of which the portion facing the gear wheel 8 is smoothly finished, for example by lapping.
  • the space 21 between the stop 19 and the gear wheel 8 may serve as a :lubricant container.
  • the ratio between the angularly velocity of the support 3 and of the cam body 10 controlling the wire guide depends upon the transmission ratio of the gear wheels 4, 6, 7 and 8.
  • the shape of the coil to be wound is fixed.
  • the coil former (not shown) is located on the support '3 and cannot move relatively to said support during winding.
  • the cam body 10 is fixed to the gear wheel 8, which is urged by the spring 17 against the stop 19.
  • the cam body 10 is therefore not displaceable in an axial direction. Between the coi-l former and the cam body controlling the wire guide no axial displacement can occur therefore.
  • the diameter of the hollow cylindrical part of the cam body 10 acting upon the wire guide to be smaller than or equal to the diameter of the annular rim 20 of the stop 19, the cam will not tend to tilt due to local loads.
  • the winding finger 13 moves accurately in accordance with a predetermined patte-rn with respect to the rotating coil former. It is thus possible to wind with extreme accuracy coils of a very thin wire, for example 40p diameter.
  • the machine is capable of operating at high speed without adversely affecting winding accuracy.
  • the support 3 may be connected with the main shaft 2 in a dif-ferent way than shown and that for example the shoulder 15 may be provided on a structural part located between the shaft 2 and the support 3.
  • a coil winding machine having a main shaft and coil former means supported on said main shaft the improvement comprising, a wire guide, means mounting said wire guide for reciprocal movement in the axial direction of said coil former, a rotatably driven cam body means journalled on said main shaft, said cam body being coupled with said Wire guide for imparting movement thereto, a stop member fixed on said main shaft adjacent to and substantially coaxial with said cam body, and resilient means for continuously abutting said cam body means against said stop member for preventing relative axial movement between said cam body and the main shaft and coil former iixedly secured on said main shaft.
  • said cam body means comprises a hollow cylindrical member integrally connected with a gear Wheel for r0- tatably driving said member, said gear wheel being journalled on said main shaft, said gear wheel bearing against said stop member remote from said member, said resilient means surrounding said main shaft and abutting said gear Wheel at one end, the other end of said resilient means abutting against a shoulder iixed on said main shaft.
  • said stop member comprises a hollow body including a disc portion, an annular rim portion projecting axially from said disc portion, said disc portion and annular portion of said stop member and said gear wheel integral with said gear body deiining a lubricant container, said annular rim and said hollow cylindrical member having substantially equal diameters and being ycoaxial with one another.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Wire Processing (AREA)
US526564A 1965-02-20 1966-02-10 Coil winding machines Expired - Lifetime US3343752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6502166A NL6502166A (es) 1965-02-20 1965-02-20

Publications (1)

Publication Number Publication Date
US3343752A true US3343752A (en) 1967-09-26

Family

ID=19792432

Family Applications (1)

Application Number Title Priority Date Filing Date
US526564A Expired - Lifetime US3343752A (en) 1965-02-20 1966-02-10 Coil winding machines

Country Status (4)

Country Link
US (1) US3343752A (es)
BE (1) BE676749A (es)
ES (1) ES323222A1 (es)
NL (1) NL6502166A (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407262A (en) * 1966-12-27 1968-10-22 Bouligny Inc R H Winding machine traverse cam and follower therefor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1753950A (en) * 1926-05-20 1930-04-08 Sleeper & Hartley Inc Take-up machine
US1864194A (en) * 1924-05-23 1932-06-21 Kellogg Switchboard & Supply Winding machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1864194A (en) * 1924-05-23 1932-06-21 Kellogg Switchboard & Supply Winding machine
US1753950A (en) * 1926-05-20 1930-04-08 Sleeper & Hartley Inc Take-up machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407262A (en) * 1966-12-27 1968-10-22 Bouligny Inc R H Winding machine traverse cam and follower therefor

Also Published As

Publication number Publication date
ES323222A1 (es) 1967-03-01
BE676749A (es) 1966-08-18
NL6502166A (es) 1966-08-22

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