US3722198A - Method and apparatus for spinning yarns of staple fibers and filaments - Google Patents

Method and apparatus for spinning yarns of staple fibers and filaments Download PDF

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Publication number
US3722198A
US3722198A US00186655A US3722198DA US3722198A US 3722198 A US3722198 A US 3722198A US 00186655 A US00186655 A US 00186655A US 3722198D A US3722198D A US 3722198DA US 3722198 A US3722198 A US 3722198A
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twisting
section
zone
yarn
twist
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US00186655A
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K Gotzfried
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means

Definitions

  • An object of. the invention is the provision of stronger yarns of the type described than havebeen available heretofore from the same constituent materials. 7
  • the method of the invention permits a yarn to be spun from a first elongated sliver of staple fibers and a second elongated sliver of continuous filaments in which the fibers and the filaments are sequentially passed through an intake zone, abraking zone, a twisting zone, and a relaxing zone.
  • the intake zone the two slivers are moved longitu-' dinally in transversely offset relationship, thatis, without being twisted. together. Loose ends of the staple fibers are spread'laterally from the remainder of the first sliver at this stage.
  • a helical air stream is generated about the slivers at a velocity sufficient to twist the slivers untila yarn is formed whose tightly twisted core portion is constituted predominantly by the filaments and the afore-mentioned remainder of the staple fiber sliver, whereas a less tightly twisted .shell portionis. predominantly constituted by the loose ends of the staple fibers.
  • The-apparatus employed in carrying out this method includes several tubular sections which jointly define anelongated channelopento the atmosphere in a first section for receiving fibers to be spun.
  • the channel 7 portion in this first section is a slot of elongated cross section.
  • a twisting portion of the channel is'defined by a second tubular section and is of circular cross section.
  • Aithird section defines therein a chamber portion of the channel whose cross section is much greater than that of the twisting portion.
  • FIG. 1 shows spinning apparatus of the invention in fragmentary elevational section
  • FIG. 2 is a fragmentary, sectional plan view of the apparatus of FIG. 1;
  • FIG. 3 shows a portion of the apparatus of FIG. 2 on a larger sclae
  • FIG. 4 illustrates the spinning action of the apparatus of FIGS. 1 to 3 in a partly diagrammatic manner.
  • FIGS. 1 to 3 there is shown a straight, cylindrical spinning tube 20 whose axial sections define portions of an elongated channel differing in cross-sectional shape and size.
  • the tube 20 is axially aligned with the nip between a pair of delivery rollers 5 of a conventional drawing frame of which only two belts 5a are shown.
  • a sliver 1 of staple fibers is discharged from the drawing frame and delivered by the rollers 5 to the bore or channel of the tube 20.
  • a sliver 2 of continuous filaments enters the nip of the rollers S from a separate source, not shown, after being wrapped over one of the rollers 5 in laterally'spaced relationship to the staple fiber sliver 1.
  • r j the sliver 1 of staple fibers
  • the terminal section of the tube 20 near the rollers 5 is formed with a slot 6 constituting an intake or suction nozzle of thetube.
  • the outer end ofthe-slot 6 is almost as wide as'the diameter of the tube 20. It tapers asymmetrically inward of the tube 20 so that its inner end extends from the tube axis toward a thin wall portion of the tube 20, as is best seen in FIG. 2.
  • the thickness of the slot is uniform except for slightly flaring walls at its intake end, as is shown in FIG. 1.
  • the generally elongated cross section of the slot is evident from joint consideration of FIGS. 1 and 2.
  • the inner end of the slot 6 communicateswith an ax ⁇ ially adjacent cylindrical chamber 8 which encloses a the helical duct in the chamber 8 with'an axial portion communicates with the twisting portion 9 through four of the channel and has, an axial component toward the third section.
  • Means are provided for conveying fibers sequentially through the aforementioned three basic sections, whereby a twist is impartedto the fibers in the the fibers in the twisting portion from being propagated to the fibers in the slot of the first section.
  • the wall of the portion 9, hereinafter referred to as the twisting portion of the tube bore, is provided with an annular distributing duct 9b near the passage 8a which is connected to a compressed-air line 11 and nozzles 9a.
  • the orifices of the nozzles are directed to discharge respective air jets having a tangential component relative to the-wall of the portion 9 and an axial component away from the passage 8a.
  • the jets combine in an air stream 11a which forms a tubular shell of rapidly rotating air flowing axially toward the right, as viewed in the drawing, about a less rapidly moving air core.
  • the jets function as injectors which draw a stream I2 of ambient air into the intake nozzle.6, through the helical duct in the chambers, and through the passage 8a into the twisting portion 9.
  • the discharge end of the portion 9 is coa'xially joined by a chamber which has an axially central cylindrical portion of a diameter similar to that of the chamber 8 and an axial length of several timesits diameter, and terminal parts which taper conically in both axial directions toward the twisting portion 9 and toward the circular discharge orifice 13 of the tube 20.
  • the nip of a pair of non-illustrated pull rolls, identical with or closely similarto the rollers 5, is aligned with the axis of the tube near the orifice 13.
  • FIGS. 1,- 2, and 3 are drawn approximately to scale.
  • Thediameter of the twisting section in the actual embodiment of the'invention illustrated in the drawing is 2 mm, and the flow sections of the narrow inner part of the nozzle 6 and of the helical guide duct in the chamber 8 are approximately equal to that of the twisting portion 9.
  • the height of the slot 6 is'7 mm. at the inner end thereof.
  • the diameter of the chamber 8 is 8 mm and about equal to its axial length.
  • the shaft or stem portion of the screw 7 has a diameter similar to that of the twisting portion 9..
  • the tube 20 is assembled from several axial sections of abrasion resistant alumina in-an obvious manner, not illustrated, and the guide screw 7 consists of the same material and'is fixedly fastened in the chamber 8.
  • theyarn 4a has acore tightlytwisted into-a righthanded or Z-spiral constituted by, the continuous filaments of the sliver 2 and a portion of the staple fibers of the sliver I firmly to interlock the two types of material, and a shell of originally loose staple'fiber ends 3, the tightness of the twist in the yarn 4a decreasing gradually in a direction radially outward from .the axis of the yarn 4a.
  • the apparatus shown is merely a preferred embodiment of the invention capable of many variations and modifications without exceeding the scope of the invention.
  • the nozzles 9a simultaneously perform the functions of generating the helical air stream 1 lain the twisting portion 9, and-of thereby generating the air stream 12.
  • the air stream 11a discharged by the nozzles 9a holds the formingiyarn 4a in frictional contact with, the stem portion of the screw 7. Obviously, these functions could be performed by individual devices.
  • air nozzles may be provided in the terminal section of the tube 20 in the manner of the nozzles 9a to draw the air stream 12 into the channel of the tube 20 or to reinforce the suction effect of thestream 11a.
  • A-method of spinning a yarn from a first elongated sliver of staple fibers and a second elongated sliver of continuous filaments which comprises:
  • 3 Pneumatic spinning apparatus comprising:
  • twisting portion being of circular cross section
  • c. means for generating a helical air stream in said twisting portion having an axial component'toward said thirdsection; d. means for conveying fibers sequentially through the portions of said channel in said first, second, and third sections, whereby a twist is imparted to said fibers in said twisting portion by said helical air stream;
  • e. brake means interposed between said first and second sections for preventing twist imparted to said fibers in said .twisting portion from being propagated tosaid fibers in said slot.
  • said brake means include a screw member having an axis, an axial stem portion, and a helical flight portion about said axis, and means for holding the conveyed fibers in frictional engagement with said stem portion.
  • said means for generating a helical air stream includes nozzle' means for directing an air jet under pressure into said twisting zone in a direction obliquely inclined relative to the direction of elongation of said channel and substantially tangential to the cross section of said twisting portion.
  • said chamber portion has two terminal parts tapering outward of said-chamber portion.
  • said slot tapers inwardly of, said channel in the direction of elongation of said cross section thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00186655A 1970-10-07 1971-10-05 Method and apparatus for spinning yarns of staple fibers and filaments Expired - Lifetime US3722198A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2049186A DE2049186C3 (de) 1970-10-07 1970-10-07 Verfahren und Vorrichtung zur Herstellung eines Garns

Publications (1)

Publication Number Publication Date
US3722198A true US3722198A (en) 1973-03-27

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Application Number Title Priority Date Filing Date
US00186655A Expired - Lifetime US3722198A (en) 1970-10-07 1971-10-05 Method and apparatus for spinning yarns of staple fibers and filaments

Country Status (7)

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US (1) US3722198A (OSRAM)
JP (1) JPS5238142B1 (OSRAM)
CH (1) CH546838A (OSRAM)
DE (1) DE2049186C3 (OSRAM)
FR (1) FR2110267B1 (OSRAM)
GB (1) GB1373255A (OSRAM)
IT (1) IT939873B (OSRAM)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924394A (en) * 1973-10-10 1975-12-09 Fritz Stahlecker Apparatus for piecing a thread in an open-end spinning unit
US3924393A (en) * 1973-10-10 1975-12-09 Fritz Stahlecker Apparatus for piecing a thread in an open-end spinning unit
US3925975A (en) * 1973-10-10 1975-12-16 Fritz Stahlecker Apparatus for piecing a thread in an open-end spinning unit
US4444003A (en) * 1981-02-03 1984-04-24 Murata Machinery Ltd. Turbulent spinning apparatus for the production of yarn
US4457130A (en) * 1981-10-13 1984-07-03 Murata Kikai Kabushiki Kaisha Air spinning nozzle unit
US5528895A (en) * 1993-09-08 1996-06-25 Murata Kikai Kabushiki Kaisha Spinning apparatus with twisting guide surface
US20070144136A1 (en) * 2003-09-12 2007-06-28 Christian Griesshammer Drawing frame-roving frame combination for the production of rove by means of a pneumatic spinning process
US20070193245A1 (en) * 2003-09-12 2007-08-23 Christian Griesshammer Device and method for the production of rove by means of a pneumatic spinning process
CN104126036A (zh) * 2012-02-08 2014-10-29 里特机械公司 用于具有螺旋式导向元件的气流纺纱机的纺纱站的纱线形成元件及生产纱线的方法
ITUA20163011A1 (it) * 2016-04-29 2017-10-29 Savio Macch Tessili Spa Dispositivo di filatura di tipo air-jet
CN116497494A (zh) * 2023-06-30 2023-07-28 江苏恒力化纤股份有限公司 一种保暖起绒纱及其制备方法和装置
US20240026576A1 (en) * 2020-12-14 2024-01-25 Saurer Spinning Solutions Gmbh & Co. Kg Multifunctional nozzle for a spinning machine
US12139824B2 (en) 2022-06-03 2024-11-12 Saurer Spinning Solutions Gmbh & Co. Kg Thread draw-off nozzle and open-end spinning device having a thread draw-off nozzle

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2463407C2 (OSRAM) * 1974-05-22 1987-08-06 Goetzfried, Geb. Wieland, Franziska
DE2463460C2 (OSRAM) * 1974-05-22 1988-09-22 Goetzfried, Geb. Wieland, Franziska
DE2424769C2 (de) * 1974-05-22 1988-05-05 Götzfried, Edith, 8900 Augsburg Vorrichtung zum pneumatischen Falschdrallspinnen
DE2531773C2 (de) * 1975-07-16 1986-07-03 Edith 8900 Augsburg Götzfried Vorrichtung zum pneumatischen Spinnen
DE2552000A1 (de) * 1975-11-20 1977-06-02 Konrad Goetzfried Gegenlaeufiges spinnverfahren und vorrichtung
DE2760421C2 (OSRAM) * 1977-09-16 1991-07-25 Goetzfried, Geb. Wieland, Franziska
DE3103510C2 (de) * 1981-02-03 1985-04-18 Götzfried, Edith, 8900 Augsburg Vorrichtung zum pneumatischen Falschdrallspinnen
JP2708000B2 (ja) * 1995-02-10 1998-02-04 村田機械株式会社 紡績装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853847A (en) * 1957-05-08 1958-09-30 Keeler Method of and apparatus for intertwining fibers to form roving or yarn
US2911783A (en) * 1959-11-10 Process and apparatus for spinning a yarn
US2926483A (en) * 1957-05-07 1960-03-01 Keeler Method of and to apparatus for use in concatenating fibrous material to form a spun yarn or strand
US2928228A (en) * 1957-01-29 1960-03-15 Gotzfried Kourad Pneumatic spinning device
US3110150A (en) * 1962-05-01 1963-11-12 George J Kyame Yarn spinning machine
US3295307A (en) * 1964-10-05 1967-01-03 George J Kyame Method and machine for making yarn from staple fiber

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911783A (en) * 1959-11-10 Process and apparatus for spinning a yarn
US2928228A (en) * 1957-01-29 1960-03-15 Gotzfried Kourad Pneumatic spinning device
US2926483A (en) * 1957-05-07 1960-03-01 Keeler Method of and to apparatus for use in concatenating fibrous material to form a spun yarn or strand
US2853847A (en) * 1957-05-08 1958-09-30 Keeler Method of and apparatus for intertwining fibers to form roving or yarn
US3110150A (en) * 1962-05-01 1963-11-12 George J Kyame Yarn spinning machine
US3295307A (en) * 1964-10-05 1967-01-03 George J Kyame Method and machine for making yarn from staple fiber

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924394A (en) * 1973-10-10 1975-12-09 Fritz Stahlecker Apparatus for piecing a thread in an open-end spinning unit
US3924393A (en) * 1973-10-10 1975-12-09 Fritz Stahlecker Apparatus for piecing a thread in an open-end spinning unit
US3925975A (en) * 1973-10-10 1975-12-16 Fritz Stahlecker Apparatus for piecing a thread in an open-end spinning unit
US4444003A (en) * 1981-02-03 1984-04-24 Murata Machinery Ltd. Turbulent spinning apparatus for the production of yarn
US4457130A (en) * 1981-10-13 1984-07-03 Murata Kikai Kabushiki Kaisha Air spinning nozzle unit
US5528895A (en) * 1993-09-08 1996-06-25 Murata Kikai Kabushiki Kaisha Spinning apparatus with twisting guide surface
US7647760B2 (en) * 2003-09-12 2010-01-19 Maschinenfabrik Rieter Ag Drawing frame-roving frame combination for the production of rove by means of a pneumatic spinning process
US20070193245A1 (en) * 2003-09-12 2007-08-23 Christian Griesshammer Device and method for the production of rove by means of a pneumatic spinning process
US20070144136A1 (en) * 2003-09-12 2007-06-28 Christian Griesshammer Drawing frame-roving frame combination for the production of rove by means of a pneumatic spinning process
US7661259B2 (en) * 2003-09-12 2010-02-16 Maschinenfabrik Rieter Ag Device and method for the manufacture of a roving yarn by means of air spinning processes
CN104126036A (zh) * 2012-02-08 2014-10-29 里特机械公司 用于具有螺旋式导向元件的气流纺纱机的纺纱站的纱线形成元件及生产纱线的方法
ITUA20163011A1 (it) * 2016-04-29 2017-10-29 Savio Macch Tessili Spa Dispositivo di filatura di tipo air-jet
US10597799B2 (en) 2016-04-29 2020-03-24 Savio Macchine Tessili S.P.A. Air-jet type spinning device
US20240026576A1 (en) * 2020-12-14 2024-01-25 Saurer Spinning Solutions Gmbh & Co. Kg Multifunctional nozzle for a spinning machine
US12195885B2 (en) * 2020-12-14 2025-01-14 Saurer Spinning Solutions Gmbh & Co. Kg Multifunctional nozzle for a spinning machine
US12139824B2 (en) 2022-06-03 2024-11-12 Saurer Spinning Solutions Gmbh & Co. Kg Thread draw-off nozzle and open-end spinning device having a thread draw-off nozzle
CN116497494A (zh) * 2023-06-30 2023-07-28 江苏恒力化纤股份有限公司 一种保暖起绒纱及其制备方法和装置
CN116497494B (zh) * 2023-06-30 2023-09-22 江苏恒力化纤股份有限公司 一种保暖起绒纱及其制备方法和装置

Also Published As

Publication number Publication date
DE2049186B2 (de) 1980-01-31
CH546838A (de) 1974-03-15
FR2110267A1 (OSRAM) 1972-06-02
FR2110267B1 (OSRAM) 1975-07-18
GB1373255A (en) 1974-11-06
IT939873B (it) 1973-02-10
JPS5238142B1 (OSRAM) 1977-09-27
DE2049186C3 (de) 1980-09-18
DE2049186A1 (de) 1972-04-13

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