US3499276A - Apparatus for coiling wires,filaments and the like - Google Patents

Apparatus for coiling wires,filaments and the like Download PDF

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Publication number
US3499276A
US3499276A US745425A US3499276DA US3499276A US 3499276 A US3499276 A US 3499276A US 745425 A US745425 A US 745425A US 3499276D A US3499276D A US 3499276DA US 3499276 A US3499276 A US 3499276A
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US
United States
Prior art keywords
rotor
filaments
winding core
feed screw
thread
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
US745425A
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English (en)
Inventor
Hans Schmid
Heinrich Feldhoff
Edelfried Hahn
Wolfgang Martin
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.)
BASF SE
Original Assignee
BASF SE
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
Priority claimed from DE19671602621 external-priority patent/DE1602621A1/de
Priority claimed from DE19671602623 external-priority patent/DE1602623A1/de
Application filed by BASF SE filed Critical BASF SE
Application granted granted Critical
Publication of US3499276A publication Critical patent/US3499276A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D02G3/362—Cored or coated yarns or threads using hollow spindles
    • D02G3/365—Cored or coated yarns or threads using hollow spindles around which a reel supporting feeding spool rotates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F3/00—Coiling wire into particular forms
    • B21F3/02—Coiling wire into particular forms helically
    • B21F3/04—Coiling wire into particular forms helically externally on a mandrel or the like

Definitions

  • The'invention relates to apparatus for coiling wires, filaments, bundles of filaments or'yarns on a winding core comprising a rotor provided with a feed bore and adapted to rotate about its winding core.
  • Coiled wires and filaments have numerous technical applications, for instance in the form of coil springs, incandescent lamp filaments, expandable supply leads, electrical resistance'coils as well as in the form of crimped fibers in the textile industry.
  • the described apparatus cannot produce a precisely single-layer crimp. Moreover, the apparatus is unsuitable for processing continuous materials of higher fiexural rigidity, such as metals.
  • the revolving rotor in apparatus for coiling wires, filaments, bundles of filaments or yarns on a winding core by means of a rotor which is provided with a feed bore and revolves about a winding core, the revolving rotor is formed with an axial recess containing a feed screw having a shaft connected to the rotor, whereas the free end of the feed screw projects from the recess, said recess further containing an armature to which the winding core is attached and through which the shaft of the feed screw passes, said armature being mounted on a bearing on the shaft of the feed screw and prevented from rotating by magnets located outside the rotor.
  • the rotor For purpose of minimizing eddy current loss in the rotor and for preventing this component from being heated, it is advisable to provide the rotor with axial slots which extend radially through the rotor in the region of the magnet pole shoes which partly embrace the external periphery of the rotor.
  • the stationary winding core may have the form of a wire hairpin embracing the feed screw with radial clearance.
  • a winding core in the form of a pin extending on one side of and parallel to the feed screw at a distance therefrom and projecting beyond the free end of the feed screw, the pin being maintained in said parallel position to the feed screw by magnets located at the end of the pin.
  • the feed screw may have for example the form of an anger or of a coil spring.
  • FIGURE 1 is a longitudinal section of the coiling device
  • FIGURE 2 is a frontal view of the armature holding the -winding core
  • FIGURE 3 schematically represents the general layout, of the proposed coilingdevice
  • FIGURE 4 is a longitudinal section of a different embodiment of the coiling device
  • FIGURE 5 is a schematic representation of the general plan of the coiling apparatus illustrated in FIGURE 4 and of an associated after-treatment zone.
  • the coiling apparatus shown in FIGURE 1 comprises a rotor 1 provided with a thread feeding bore 2, which rotor is rotatably mounted in the bearing 3 of a support means 4.
  • An axial recess 5 in the rotor contains an armature 7 carrying a winding core which has the form of a wire hairpin 6 (see also FIGURE 2).
  • the armature 7 is mounted on bearing 8 on the shaft 9 of a feed screw having the form of an anger 10.
  • the shaft 9 of the anger is detachably or permanently affixed to the rotor 1 so that :he auger will rotate at the same speed as the rotor 1 vhen the latter revolves.
  • the armature 7 is located beween the pole shoes 11 of an electromagnet 12, the pole ;hoes being positioned with radial clearance at the exter- 1a1 periphery of the rotor 1.
  • the electromagnet 12 comarises coils 13 for generating a magnetic field and is afixed to the support means 4. When the rotor 1 revolves, :nergization of the electromagnet 12 causes the armature 7 and the attached winding core to be retained and the feed screw connected to the rotor can therefore freely evolve in the stationary armature 7.
  • Suitable materials or the rotor are non-magnetic metallic or electrically in- :ulating materials, such as plastics or quartz.
  • the rotor may be )rovided with longitudinal slots which repeatedly interupt the paths of eddy currents penetrating the rotor.
  • the thread or wire is vithdrawn from a supply bobbin 14 and conducted over leflecting rollers 15 into the thread feeding bore 2 in the rotor 1.
  • the rotor 1 is driven by a motor 16 and a fricion wheel drive 17.
  • the eccentric exit of the thread feed- .ng bore 2 causes the thread to wind on the wire hairpin S forming the winding core when the rotor revolves.
  • Be- :ause of the hairpin shape of the winding core, the wound hread also makes contact with the auger-shaped feed acrew which is mounted inside the axial recess of the rotor 1 and extends into the interior of the winding core.
  • the thread wound on the auger is advanced by the pitch of one :onvolution of the screw thread so that an exact single- .ayer coil will be formed.
  • the pitch of the feed screw is :onveniently so chosen that the loops of the coiled thread are closely adjacent.
  • the support means for the pin 30 are magnetic means.
  • one or more nagnets 32 may be attached for instance by a bracket 33 :o the support means 4.
  • the mechanism according to this invention is particularly useful if the helically coiled wire or thread is to be submitted to an after-treatment as indicated in FIG- URE 5, for instance if it is to be lacquered or submitted to a thermal treatment for fixing the crimp that has been Jbtained.
  • the fixation of he crimp is usually indispensable in order to ensure that the crimp is retained after the thread has been pushed oil the core.
  • the thread is withdrawn from a ;upply package 14 and guided into the thread feeding bore 2 of the rotor 1 by the guide rollers 15.
  • the rotor 1 may be preceded by a preheating zone 26 :hrough which the thread travels.
  • the rotor 1 is driven by a. motor 16 and a friction wheel drive 17.
  • the revolving rotor '1 winds the thread about a core constituted by a thin pin 30 and, by means of the feed screw which has the form of a coil spring 31, the coiled thread is pushed along the pin 30 until it slides off its free end, whence it is taken over a guide roller 18 to run onto abobbin 20 driven by a geared motor 19.
  • the coiled thread first passes through a heating chamber 21 which is provided with hot air supplied by an air circulating means 22 and conducted through a heating device 23 to heat the thread to fixing temperature.
  • a following cooling zone 24 the coiled thread is cooled to ambient temperature by a blast of cold air generated by a blower 25. In this manner the crimp produced by coiling the thread on the pin 30. is fixed so that it is retained when the thread leaves the pin.
  • the magnets 32 required for stabilizing the pin 30, which extends to the end of the cooling zone, are located in the walls of the heating chamber 21 and of the cooling zone 24.
  • the apparatus illustrated in FIGURE 5 has proved particularly suitable for providing a crimp in single filaments or bundles of filaments of any cross-sectional shape consisting of thermoplastic synthetic materials, such as polyamides, polyesters and polyolefins.
  • thermoplastic synthetic materials such as polyamides, polyesters and polyolefins.
  • the synthetic threads are heated in the heating chamber 21 of the fixing zone to temperatures at which they are plastically formable.
  • these temperatures may be in the-range between the crystallite melting point and a temperature which is about C. below the crystallite melting point.
  • filaments of say nylon-6 are heated to temperatures between and C.
  • the rotor is preceded by a preheating zone 26 which heats the filaments to the desired temperature. Both in the preheating zone and in the heating chamber, care must be taken to ensure that the crystallite melting point is not exceeded in crystalline thermoplastics.
  • the advantages afforded by the apparatus according to this invention over known winding devices principally reside in the fact that it is simple in construction and requires substantially no maintenance and that the problem of supporting the winding core has been solved without the employment of supplementary drive means, gear wheels or other machine elements that wouldbe subject to wear.
  • the proposed apparatus permits endless, exactly single-layer, closely wound coils to be produced. With reference to the choice of the diameter of the coil and 1.
  • Apparatus for coiling wire, filaments, bundles of filaments or yarns on a winding core by means of a rotor provided with an eccentric feed bore and revolving about a winding core which comprises a revolving rotor having an axial recess at the end at which the outlet of said eccentric feed bore is situated, said recess containing a feed screw having a shaft connected to the rotor, whereas,
  • the free end of the feed screw projects from the recess, said recess further containing an armature to which the winding core is attached and through-which the shaft of the feed screw passes, said armature being mounted on at bearing on the shaft of the feed screw and prevented from rotating by magnets located outside the rotor.
  • said pole shoes partly embracing the external periphery of the rotor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Wire Processing (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US745425A 1967-07-29 1968-07-17 Apparatus for coiling wires,filaments and the like Expired - Lifetime US3499276A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19671602621 DE1602621A1 (de) 1967-07-29 1967-07-29 Vorrichtung zum fortlaufenden wendelfoermigen Wickeln von Draehten,Faeden u.dgl.
DE19671602623 DE1602623A1 (de) 1967-08-17 1967-08-17 Vorrichtung zum fortlaufenden wendelfoermigen Wickeln von Draehten,Faeden u.dgl.

Publications (1)

Publication Number Publication Date
US3499276A true US3499276A (en) 1970-03-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US745425A Expired - Lifetime US3499276A (en) 1967-07-29 1968-07-17 Apparatus for coiling wires,filaments and the like

Country Status (4)

Country Link
US (1) US3499276A (de)
CH (1) CH495184A (de)
FR (1) FR1574540A (de)
GB (1) GB1232854A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125923A (en) * 1976-10-06 1978-11-21 Giuseppe Scoleri Machine for the crimping of yarns, in particular for producing false, wavy hairs for wigs
US4201035A (en) * 1977-08-11 1980-05-06 John Nolan Design Limited Winding machine
CN119177507A (zh) * 2024-11-26 2024-12-24 徐州普路通纺织科技有限公司 一种涡流纺包芯纱的加捻装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980959A (en) * 1958-01-17 1961-04-25 Nat Plastic Products Company Curling fibers
US3071917A (en) * 1961-05-01 1963-01-08 Mousanto Chemical Company Apparatus for texturing yarn
US3147578A (en) * 1961-08-18 1964-09-08 Rhovyl Sa Apparatus for continuously producing curled yarns
US3342026A (en) * 1964-09-16 1967-09-19 David & David Inc Method and apparatus for producing textured yarn

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980959A (en) * 1958-01-17 1961-04-25 Nat Plastic Products Company Curling fibers
US3071917A (en) * 1961-05-01 1963-01-08 Mousanto Chemical Company Apparatus for texturing yarn
US3147578A (en) * 1961-08-18 1964-09-08 Rhovyl Sa Apparatus for continuously producing curled yarns
US3342026A (en) * 1964-09-16 1967-09-19 David & David Inc Method and apparatus for producing textured yarn

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125923A (en) * 1976-10-06 1978-11-21 Giuseppe Scoleri Machine for the crimping of yarns, in particular for producing false, wavy hairs for wigs
US4201035A (en) * 1977-08-11 1980-05-06 John Nolan Design Limited Winding machine
CN119177507A (zh) * 2024-11-26 2024-12-24 徐州普路通纺织科技有限公司 一种涡流纺包芯纱的加捻装置

Also Published As

Publication number Publication date
GB1232854A (de) 1971-05-19
FR1574540A (de) 1969-07-11
CH495184A (de) 1970-08-31

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