US3153271A - Yarn crimping apparatus - Google Patents

Yarn crimping apparatus Download PDF

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Publication number
US3153271A
US3153271A US240681A US24068162A US3153271A US 3153271 A US3153271 A US 3153271A US 240681 A US240681 A US 240681A US 24068162 A US24068162 A US 24068162A US 3153271 A US3153271 A US 3153271A
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US
United States
Prior art keywords
yarn
rollers
crimping
tube
slits
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
US240681A
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English (en)
Inventor
Eshuis Jannes
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.)
Akzona Inc
Original Assignee
American Enka 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 American Enka Corp filed Critical American Enka Corp
Application granted granted Critical
Publication of US3153271A publication Critical patent/US3153271A/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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes

Definitions

  • This invention relates generally to crimping continuous filament yarns and tow and more particularly to a device for use in connection with stutter-box crimping apparatus which greatly facilitates starting-up of the process.
  • apparatus for crimping filament yarns by the stutfer box method comprises two feed rollers and a crimping tube.
  • the feed rollers are provided with smooth cylindrical surfaces and the crimping tube is shaped such that it forms a chamber which is closed at one end by parts of these surfaces of the feed rollers. At its opposite end the chamber is open or alternately may be closed by spring-loaded valves or the like.
  • such apparatus very often has additional means for heating, cooling, moistening, or finishing the yarns to be crimped to improve the performance thereof.
  • the yarn is fed to the nip of the feed rollers which feed the yarn into the crimping tube against the pressure of a yarn wad.
  • the crimping tube does not yet contain such a yarn wad and in order to form the yarn into a wad, it is sometimes the practice to insert a counter-pressure rod in the tube. Usually the rod is held by hand.
  • the tube and rollers are positioned so that the space inside the crimping tube is closed at one end, there is still some play between these parts. This play must be maintained for various reasons. Thus, it is necessary for the rollers to move apart under spring tension in order to allow the passage of a thick piece of yarn, a crossing of filaments, or a knot. This freedom of movement must not be impeded by the rollers being in contact with the crimping tube. Moreover, the rollers must be able to rotate freely relative to the crimping tube, both when the apparatus is cold and when it heats and expands under operating conditions.
  • Another object of this invention is to provide a method for preventing yarn breakage and clogging during the starting-up operation of stuffer-box crimping apparatus.
  • Still another object of this invention is to provide stufferbox crimping apparatus in which yarn breakage and clogice ging caused by passage of the yarn between the feed rollers and crimping tube is prevented.
  • a further object is to provide apparatus for preventing passage of yarn through the slit formed between the feed rollers and crimping tube of conventional staffer-box crimping apparatus while minimizing wear of the rollers.
  • the slit between the circumferential surfaces of the feed rollers and crimping tube of a conventional stutter-box crimping apparatus is blocked by a resilient device during the startingup operation.
  • the device is composed of a material softer than the rollers, but sufficiently rigid, so that it will not bend away or be pushed aside by the rollers. With such a device, the yarn cannot pass through the slit and thus entanglement around the rollers is prevented.
  • the slit can be closed on the outside of the crimping tube. It might be expected that the yarn in this case would still enter the slit between the circumferential surface of a roller and the crimping tube. Surprisingly, this in itself does not cause any difficulties as long as the yarn is prevented from passing through the slit.
  • the slit can be blocked effectively by placing a resilient closing device in front of the slit and on the outside of the crimping tube. Obviously, from a practical point of view, it is better to provide an apparatus in which the closing device can be placed on the outside of the crimping tube rather than one in which the slit must be blocked on the inside of the tube.
  • the closing device can be moved away from the slit. Because of this, and the fact that the device is made of a softer material than the rollers, wear of the rollers is prevented.
  • the closing device is slidably mounted on the outside of the crimping tube and is movable as far as the circumferential surfaces of the rollers.
  • the closing device may be constructed as a solid jacket and from a great variety of materials, it has been found simpler and preferable to make the device from a textile material such as a woven, knitted or braided fabric. Fabrics of linear polyamide filament yarns has been found especially suitable. It has even been found satisfactory to block the slits by means of a piece of multifilament tow, for example, a piece of polyamide or polyester tow, knotted in a ring around the crimping tube.
  • crimping tube 1 a part of the crimping tube 1 is shown in cross section in the plane of feed rollers 2 and 3. At the bottom end of crimping tube ll, its shape is such that it is almost closed by feed rollers 2 and 3. Feed rollers 2 and 3 are rotated by shafts 4 and 5 in the directions indicated by the arrows. The rollers are pressed together by a spring tension device (not shown), so that yarn 6 is stuffed against yarn wad 7. Counter-pressure is exerted on yarn wad 7 by steel balls 8, the number of which varies depending upon the pressure required in the yarn wad.
  • a ring 9 of a synthetic material such as a fabric woven of polyamide filaments, is movably mounted around the outside of the crimping tube. While a polyamide ring is specifically mentioned, other synthetic materials are also very suitable.
  • the underside of the ring 9 is so shaped that it fits accurately against the circumferential surfaces of rollers 2 and 3.
  • the method and apparatus of this invention prevents yarn 6 from passing through slits 10 and 11.
  • the apparatus eliminates yarn breakage and clogging of the apparatus and results in a stutter-box crimping operation that is more reliable and may be combined more satisfactorily with other treatments, particularly those involving the stretching or drawing of synthetic yarns.
  • a fabric sleeve slidably mounted around the outer surface of said crimping tube whereby the sleeve may be moved to a position blocking said slits and preventing yarn from passing therethrough during start up of the apparatus.
  • a stuffer box crimping apparatus having feed rollers and a crimping tube positioned directly adjacent thereto whereby slits are formed between said tube and the circumferential surfaces of said rollers
  • the improvement comprising a resilient sleeve slidably mounted around the outer surface of said crimping tube, said sleeve consisting of a material softer than the rollers but sufficiently rigid so that it will not bend away or be pushed aside by the rollers, whereby the sleeve may be moved to a position blocking said slits thus preventing yarn from passing therethrough during start up of the apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
US240681A 1961-12-05 1962-11-28 Yarn crimping apparatus Expired - Lifetime US3153271A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL272189 1961-12-05

Publications (1)

Publication Number Publication Date
US3153271A true US3153271A (en) 1964-10-20

Family

ID=19753462

Family Applications (1)

Application Number Title Priority Date Filing Date
US240681A Expired - Lifetime US3153271A (en) 1961-12-05 1962-11-28 Yarn crimping apparatus

Country Status (6)

Country Link
US (1) US3153271A (is")
BE (1) BE624742A (is")
DE (1) DE1435600A1 (is")
ES (1) ES282845A1 (is")
GB (1) GB950575A (is")
NL (1) NL272189A (is")

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404441A (en) * 1965-04-17 1968-10-08 Teijin Ltd Apparatus for the heat treatment of a running yarn
US3440699A (en) * 1967-09-29 1969-04-29 Techniservice Corp Process and apparatus for strand treatment
US3650001A (en) * 1970-12-24 1972-03-21 Phillips Petroleum Co Yarn texturing apparatus
US3678547A (en) * 1970-11-06 1972-07-25 Phillips Petroleum Co Yarn texturing
US3693222A (en) * 1970-12-28 1972-09-26 Phillips Petroleum Co Yarn texturing apparatus
US3707745A (en) * 1970-12-16 1973-01-02 Phillips Petroleum Co Yarn texturing
US3894319A (en) * 1973-06-01 1975-07-15 Indian Head Inc Apparatus for texturing continuous filament yarn
US3936916A (en) * 1974-05-09 1976-02-10 Phillips Petroleum Company Method and apparatus for the production of textured yarn

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3802112A1 (de) * 1987-02-06 1988-08-18 Barmag Barmer Maschf Falschzwirnkraeuselvorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US407391A (en) * 1889-07-23 Thomas henry ackeoyd and allan broadley
US2152295A (en) * 1936-10-27 1939-03-28 St George Textile Corp Apparatus for producing additional draft in drawing frames
US2695429A (en) * 1953-02-20 1954-11-30 Davis & Furber Sliver coiler
US2949659A (en) * 1956-05-24 1960-08-23 American Enka Corp Crimping apparatus
GB883119A (en) * 1958-08-06 1961-11-22 Barmag Barmer Maschf Improvements relating to crimping apparatus for synthetic yarns
US3035313A (en) * 1958-12-19 1962-05-22 Rieter Ag Maschf Condensing trumpet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US407391A (en) * 1889-07-23 Thomas henry ackeoyd and allan broadley
US2152295A (en) * 1936-10-27 1939-03-28 St George Textile Corp Apparatus for producing additional draft in drawing frames
US2695429A (en) * 1953-02-20 1954-11-30 Davis & Furber Sliver coiler
US2949659A (en) * 1956-05-24 1960-08-23 American Enka Corp Crimping apparatus
GB883119A (en) * 1958-08-06 1961-11-22 Barmag Barmer Maschf Improvements relating to crimping apparatus for synthetic yarns
US3035313A (en) * 1958-12-19 1962-05-22 Rieter Ag Maschf Condensing trumpet

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404441A (en) * 1965-04-17 1968-10-08 Teijin Ltd Apparatus for the heat treatment of a running yarn
US3440699A (en) * 1967-09-29 1969-04-29 Techniservice Corp Process and apparatus for strand treatment
US3678547A (en) * 1970-11-06 1972-07-25 Phillips Petroleum Co Yarn texturing
US3707745A (en) * 1970-12-16 1973-01-02 Phillips Petroleum Co Yarn texturing
US3650001A (en) * 1970-12-24 1972-03-21 Phillips Petroleum Co Yarn texturing apparatus
US3693222A (en) * 1970-12-28 1972-09-26 Phillips Petroleum Co Yarn texturing apparatus
US3894319A (en) * 1973-06-01 1975-07-15 Indian Head Inc Apparatus for texturing continuous filament yarn
US3936916A (en) * 1974-05-09 1976-02-10 Phillips Petroleum Company Method and apparatus for the production of textured yarn

Also Published As

Publication number Publication date
DE1435600A1 (de) 1968-12-19
ES282845A1 (es) 1963-02-01
NL272189A (is")
BE624742A (is")
GB950575A (en) 1964-02-26

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