US3445993A - Method of and apparatus for producing core yarns - Google Patents

Method of and apparatus for producing core yarns Download PDF

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Publication number
US3445993A
US3445993A US610296A US3445993DA US3445993A US 3445993 A US3445993 A US 3445993A US 610296 A US610296 A US 610296A US 3445993D A US3445993D A US 3445993DA US 3445993 A US3445993 A US 3445993A
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United States
Prior art keywords
yarn
core
spinning chamber
chamber
tube
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Expired - Lifetime
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US610296A
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English (en)
Inventor
Premysl Vorisek
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.)
Vyzkumny Ustav Bavlnarsky AS
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Vyzkumny Ustav Bavlnarsky AS
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • 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

Definitions

  • This invention relates to a method and an apparatus for producing a core yarn, and more particularly to such a method and such an apparatus for winding around a core of previously spun yarn an outer yarn which may be spun from another type of fiber and which may conceal the outer layer of the previously spun yarn.
  • the invention is especially useful in connection with winding about a core of previously spun yarn a second artificial or synthetic yarn.
  • a method is known in which a modified spinning machine with a spinning ring and traveler thereon acts upon conventionally processed yarn by winding a yarn which is currently being spun about a core of previously spun yarn.
  • this method however, uneven winding of the core yarn results, influencing the yarn quality detrimentally.
  • the apparatus for carrying out this method has many imperfections and its efliciency is rather low.
  • a method is also known in which a modified device for carrying out the continuous ringless spinning process is used for winding the yarn constituting the core of the core yarn.
  • the core is surrounded by fibrous material.
  • the yarn forming the core of the core yarn is given an additional twist. This is detrimental.
  • -It is the object of the present invention to improve core yarn quality, to prevent any additional twist being given the previously spun yarn which forms the core of the core yarn, and to permit the use of materials of considerable strength thereby providing core yarn having surpassing strength.
  • Another object is to make possible a high rate of core yarn production.
  • Another object is to prevent twisting of the core during winding of the outer yarn thereon.
  • previously spun yarn forms the core of the core yarn and is passed through a continuously rotating spinning chamber along its axis of rotation.
  • Fibers of the material which is to form the winding yarn are fed to the spinning chamber to form a second yarn therein, and are there wound as a second yarn about the first or core yarn.
  • the core is withdrawn from the spinning chamber along the axis of rotation of the chamber through a stationary withdrawal tube. Winding of the second yarn about the core is continued within this tube due to the rotary movement of the spinning chamber.
  • the invention requires that the core pass through a rotating spinning chamber along its axis of rotation, the completed core yarn being withdrawn from the rotating spinning chamber along the same axis.
  • a stationary feeding tube for the core extends into the spinning chamber and a coaxial withdrawal tube for the completed core yarn extends outwardly from the spinning chamber.
  • the feeding tube penetrate the space within the spinning chamber. It is further advantageous to employ a feeding tube which has a diameter corresponding to at least approximately the diameter of the core of the core yarn being produced.
  • the embodiment illustrated in the drawing comprises a body or machine frame 1 in which there is mounted a rotary spinning chamber 4 journaled in bearings 2 and 3 for free rotation in the body.
  • the spinning chamber has an axially extending hollow cylindrical neck 41 extending outwardly therefrom through which the chamber is rotated by a belt 5 passing around the neck.
  • the space 42 within the spinning chamber 4 is bounded by the usual plane bottom 43 and annular outer bowed extension 44 in which an annular ring of escape openings 45 are formed for producing a vacuum within the chamber.
  • the spinning chamber is open opposite the plane bottom 43.
  • a collecting surface 46 is provided within the spinning chamber at the extreme radial outer portion of the chamber within the outwardly bowed extension 44; and rotation of the spinning chamber throws fibers therein outwardly to this surface, by centrifugal force, to form a yarn in the spinning chamber.
  • a guide means is provided for guiding a first yarn 8, which is to become the core of the core yarn 27, through the spinning chamber 4 along the axis of rotation of the latter.
  • This guide means comprises a feeding tube 7 fixed in the body 1 and extending through the neck '41 into the spinning chamber 4.
  • the guide means also comprises a withdrawal tube 10 coaxial with the feeding tube 7 extending oppositely into the spinning chamber.
  • the pre-spun yarn which is to form the core of the core yarn to be produced, is drawn by withdrawing rollers 11, acting upon the completed core yarn, from a supply bobbin 21, past a constant pull brake 22 through the feeding tube 7, and through the withdrawal tube 10. Beyond the withdrawing rollers 11 the completed core yarn is wound upon a bobbin 13 by means of a roller 12.
  • a winding 24 is applied to the core 8 in a manner which will now be described.
  • a tube 17 passes through an opening 16 in the lower part of the body 1 and enters the spinning chamber 4, being bent toward the collecting surface 46 within the chamber.
  • Previously separated fibers 18 pass through the tube 17, by which they are projected against the collecting surface 46 of the rotating spinning chamber 4. Upon this collecting surface 46 the separated fibers 18 are spun into yarn 25 under influence of the rotation of the spinning chamber and the vacuum produced by the escape openings 45 therein.
  • the spun yarn 25 is the winding 24 with which the core 8 is wound.
  • the yarn-withdrawal tube 10 projects a slight distance into the spinning chamber 4 at the open side thereof opposite to its plane bottom 43.
  • the yarn-feeding tube 7 projects a greater distance into the chamber with its exit end in a position closely adjacent the entrance end 26 of the yarn withdrawal tube. The two tubes are thus separated by a narrow gap which is only a slight axial distance within the spinning cham her and which is materially displaced radial from the collecting surface 46 of the spinning chamber.
  • Rotary motion is given the spinning chamber 4.
  • the separated fibers 18 are then conveyed into the chamber through the tube 17 and are further conveyed, by the vacuum Within the chamber and the centrifugal force set up therein, to the collecting surface 46, on which they are deposited in the form of a ribbon 23.
  • a yarn end is threaded into the spinning chamber 4 through the widthdrawal tube 10. Thereupon, the yarn end is brought into contact with the ribbon 23.
  • the yarn end, with the winding yarn of the ribbon 23 spun in, is now progressively withdrawn from the spinning chamber 4 through the withdrawal tube 10.
  • the operation therefore comprises passing a first yarn 8, which is the core of the core yarn 27, through the continuously rotating spinning chamber 4 along its axis of rotation, feeding previously separated fibers 18 to the spinning chamber to form a second yarn 24 of such fibers, winding this second yarn about the first yarn during rotation of the spinning chamber and withdrawing the two yarns from the chamber in the form of a core yarn.
  • a method of producing a core yarn comprising the steps of passing a first yarn through a continuously rotating spinning chamber along the axis of rotation of the latter; feeding fibers to the rotating spinning chamber, twisting said fed fibers in said rotating spinning chamber into a second yarn before contacting said first yarn passing through said spinning chamber and winding the leading portion of the thus formed second yarn about the first yarn by rotation of the spinning chamber; and withdrawing the thus formed core yarn from the spinning chamber.
  • Apparatus for producing a core yarn comprising a rotary spinning chamber having a collecting surface; guide means for guiding a first yarn through said spinning chamber along its axis of rotation and spaced from said collecting surface thereof; means for introducing loose fibers into the rotating spinning chamber spaced from said first yarn and onto the collecting surface of said spinning chamber; means for rotating said spinning chamber to thereby form said fibers on said collecting surface into a second yarn independently of and prior to contacting said first yarn and to wind the thus independently formed second yarn about the first yarn; and means for withdrawing the thus formed core yarn axially from said guide means.
  • said guide means including a withdrawing tube, and wherein the means for withdrawing the first and second yarns from said guide means includes a pair of yarn-withdrawing rollers positioned outside of said chamber beyond said withdrawing tube.
  • said withdrawing means includes a yarn withdrawal tube extending along the axis of rotation of said spinning chamber and out of said chamber.
  • Apparatus as defined in claim 3, wherein the means for rotating said spinning chamber is a hollow cylindrical shaft on said chamber extending axially therefrom and a belt for rotating said shaft as a pulley.
  • the guide means comprises a non-rotary axially positioned yarn feeding tube projecting into the spinning chamber, and a non-rotary axially positioned yarn-withdrawing tube projecting into the spinning chamber opposite said feeding tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Filtering Materials (AREA)
US610296A 1966-03-09 1967-01-19 Method of and apparatus for producing core yarns Expired - Lifetime US3445993A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS157366 1966-03-09

Publications (1)

Publication Number Publication Date
US3445993A true US3445993A (en) 1969-05-27

Family

ID=5350430

Family Applications (1)

Application Number Title Priority Date Filing Date
US610296A Expired - Lifetime US3445993A (en) 1966-03-09 1967-01-19 Method of and apparatus for producing core yarns

Country Status (8)

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US (1) US3445993A (en)van)
JP (1) JPS5017574B1 (en)van)
AT (1) AT269697B (en)van)
BE (1) BE685383A (en)van)
CH (1) CH456417A (en)van)
DE (1) DE1560329A1 (en)van)
ES (1) ES330921A1 (en)van)
GB (1) GB1154554A (en)van)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696600A (en) * 1971-04-12 1972-10-10 Us Agriculture Apparatus for producing core yarn
US3768243A (en) * 1971-04-12 1973-10-30 Us Agriculture Yarn twist control apparatus for electrostatic spinner
US3844097A (en) * 1971-08-26 1974-10-29 E Bobkowicz Composite spinning
USB294103I5 (en)van) * 1972-07-06 1975-01-28
US3918244A (en) * 1974-03-18 1975-11-11 Ppg Industries Inc Method and apparatus for making a bulky yarn
US3973382A (en) * 1974-02-12 1976-08-10 Hironori Hirai Yarn guide device for an open-end spinning machine
US4056924A (en) * 1974-03-29 1977-11-08 John Umiastowski Yarn-twisting method and apparatus
US4083173A (en) * 1973-12-22 1978-04-11 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Method and apparatus for the manufacture of core yarn in an open-end spinning device
US4209965A (en) * 1976-12-21 1980-07-01 Bobkowicz E Universal spinning system
US4253297A (en) * 1977-03-31 1981-03-03 Centralny Osrodek Badawczorozwojowy Maszyn Wlokienniczych "Polmatex-Cenaro" Method and apparatus for the production of core yarn
US4302926A (en) * 1978-12-28 1981-12-01 Vyzkumny Ustav Bavlnarsky Multi-component yarn and method of apparatus for its manufacture
US4302925A (en) * 1977-08-23 1981-12-01 Toray Industries, Inc. Multi-component spun yarn and method and apparatus for manufacturing same
US4527384A (en) * 1983-09-01 1985-07-09 Vyzkumny Ustav Bavinarsky Method of and apparatus for producing multicomponent spun-twisted yarns by open-end spinning
US4729214A (en) * 1987-01-20 1988-03-08 E. I. Du Pont De Nemours And Company Combined carpet yarns by open end rotor spinning
US4788817A (en) * 1988-03-07 1988-12-06 E. I. Du Pont De Nemours And Company Automatic piecing of combination open end rotor spun yarn
US4802330A (en) * 1987-01-20 1989-02-07 E. I. Du Pont De Nemours And Company Combined carpet yarns by open end rotor spinning
CN116288847A (zh) * 2023-05-15 2023-06-23 江苏恒力化纤股份有限公司 一种纳米尺度纤维—短纤维纱包覆纱及其纺纱方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031250B2 (en) * 1979-12-22 1988-06-22 Hollingsworth (U.K.) Limited Composite yarn

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2202118A (en) * 1937-08-25 1940-05-28 Owens Corning Fiberglass Corp Sliver formation
DE747345C (de) * 1941-06-20 1944-09-29 Paul Chr Simons Verfahren zum Umspinnen von Draehten
US2451881A (en) * 1943-10-11 1948-10-19 Morris H Siegel Apparatus for forming fur filled yarn
US3091909A (en) * 1962-05-31 1963-06-04 Stevens & Co Inc J P Intermittent control apparatus
US3126697A (en) * 1964-03-31 Apparatus for continuous spinning of fibrous textile materials
US3217482A (en) * 1963-08-30 1965-11-16 Monsanto Co Apparatus for texturizing yarn

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126697A (en) * 1964-03-31 Apparatus for continuous spinning of fibrous textile materials
US2202118A (en) * 1937-08-25 1940-05-28 Owens Corning Fiberglass Corp Sliver formation
DE747345C (de) * 1941-06-20 1944-09-29 Paul Chr Simons Verfahren zum Umspinnen von Draehten
US2451881A (en) * 1943-10-11 1948-10-19 Morris H Siegel Apparatus for forming fur filled yarn
US3091909A (en) * 1962-05-31 1963-06-04 Stevens & Co Inc J P Intermittent control apparatus
US3217482A (en) * 1963-08-30 1965-11-16 Monsanto Co Apparatus for texturizing yarn

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768243A (en) * 1971-04-12 1973-10-30 Us Agriculture Yarn twist control apparatus for electrostatic spinner
US3696600A (en) * 1971-04-12 1972-10-10 Us Agriculture Apparatus for producing core yarn
US3844097A (en) * 1971-08-26 1974-10-29 E Bobkowicz Composite spinning
USB294103I5 (en)van) * 1972-07-06 1975-01-28
US3924396A (en) * 1972-07-06 1975-12-09 Bobkowicz E Composite yarn forming method and apparatus
US4083173A (en) * 1973-12-22 1978-04-11 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Method and apparatus for the manufacture of core yarn in an open-end spinning device
US3973382A (en) * 1974-02-12 1976-08-10 Hironori Hirai Yarn guide device for an open-end spinning machine
US3918244A (en) * 1974-03-18 1975-11-11 Ppg Industries Inc Method and apparatus for making a bulky yarn
US4056924A (en) * 1974-03-29 1977-11-08 John Umiastowski Yarn-twisting method and apparatus
US4209965A (en) * 1976-12-21 1980-07-01 Bobkowicz E Universal spinning system
US4253297A (en) * 1977-03-31 1981-03-03 Centralny Osrodek Badawczorozwojowy Maszyn Wlokienniczych "Polmatex-Cenaro" Method and apparatus for the production of core yarn
US4302925A (en) * 1977-08-23 1981-12-01 Toray Industries, Inc. Multi-component spun yarn and method and apparatus for manufacturing same
US4302926A (en) * 1978-12-28 1981-12-01 Vyzkumny Ustav Bavlnarsky Multi-component yarn and method of apparatus for its manufacture
US4527384A (en) * 1983-09-01 1985-07-09 Vyzkumny Ustav Bavinarsky Method of and apparatus for producing multicomponent spun-twisted yarns by open-end spinning
US4729214A (en) * 1987-01-20 1988-03-08 E. I. Du Pont De Nemours And Company Combined carpet yarns by open end rotor spinning
US4802330A (en) * 1987-01-20 1989-02-07 E. I. Du Pont De Nemours And Company Combined carpet yarns by open end rotor spinning
US4788817A (en) * 1988-03-07 1988-12-06 E. I. Du Pont De Nemours And Company Automatic piecing of combination open end rotor spun yarn
CN116288847A (zh) * 2023-05-15 2023-06-23 江苏恒力化纤股份有限公司 一种纳米尺度纤维—短纤维纱包覆纱及其纺纱方法
CN116288847B (zh) * 2023-05-15 2023-08-29 江苏恒力化纤股份有限公司 一种纳米尺度纤维—短纤维纱包覆纱及其纺纱方法

Also Published As

Publication number Publication date
CH456417A (de) 1968-07-31
DE1560329A1 (de) 1970-11-19
BE685383A (en)van) 1967-02-13
ES330921A1 (es) 1967-09-16
AT269697B (de) 1969-03-25
JPS5017574B1 (en)van) 1975-06-21
GB1154554A (en) 1969-06-11

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