US3336742A - Yarn twist controlling device - Google Patents

Yarn twist controlling device Download PDF

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Publication number
US3336742A
US3336742A US599942A US59994266A US3336742A US 3336742 A US3336742 A US 3336742A US 599942 A US599942 A US 599942A US 59994266 A US59994266 A US 59994266A US 3336742 A US3336742 A US 3336742A
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US
United States
Prior art keywords
yarn
inlet
collecting surface
spinning chamber
delivery channel
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
US599942A
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English (en)
Inventor
Stary Josef
Kubovy Miloslav
Dobrouc Dolni
Zavadsky Karel
Jirasek Erik
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
Original Assignee
Vyzkumny Ustav Bavlnarsky AS
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 Vyzkumny Ustav Bavlnarsky AS filed Critical Vyzkumny Ustav Bavlnarsky AS
Application granted granted Critical
Publication of US3336742A publication Critical patent/US3336742A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01H4/40—Removing running yarn from the yarn forming region, e.g. using tubes

Definitions

  • a guide ring eccentric to the inlet of the delivery chanml of a rotary spinning chamber slidingly guides the spun yarn so that not only the yarn portion in the delivery channel, but also the revolving yarn portion in the spinning chamber is twisted.
  • the present invention relates to an improvement of spinning apparatus of the type in which a rotary spinning chamber receives fibers on a rotary collecting surface and spins the same into a yarn which is withdrawn by transporting means through a delivery channel.
  • the spun yarn has a revolving yarn portion extending from the collecting surface to the inlet of the delivery channel, and a twisted yarn portion moving outward in the delivery channel.
  • the revolving yarn portion Since the revolving yarn portion is not twisted, yarn breakage occurs mainly in the revolving yarn portion which does not have the tensile strength of the twisted yarn portion. Of course, the yarn breakage may also be caused by poor quality of the sliver from which fibers are combed and supplied to the spinning chamber. However, since the quality and condition of the sliver cannot be changed, a reduction of the number of yarn breakages can only be obtained by providing also the revolving yarn portion with a twist.
  • Another object of the invention is to spread the twist of the yarn portion in the delivery channel, to the revolving yarn portion in the spinning chamber.
  • the present invention relates to a yarn twist controlling device for a rotary spinning chamber having an annular fiber collecting surface, and which comprises supporting means formed with a delivery channel having an inlet for the spun yarn.
  • a guiding means is provided on the supporting means for slidingly guiding the revolving yarn portion intermediate the collecting surface and the inlet of the delivery channel of the rotary spinning chamber.
  • the guiding means is at least partly located between the inlet and the collecting surface. More particularly, the guide means is curved so that during the rotation of the spinning chamber, the distances from the inlet to points of the guiding means engaged by the yarn vary, whereby also the distances from the respective points to the collecting surface of the spinning chamber vary.
  • the guide means is a stationary annular member, preferably a circular ring, secured to the supporting means in a position located in the spinning chamber eccentric to the axis of etfect twisting of the entire 3,336,742 Patented Aug. 22, 1967 rotation of the same, and the inlet of the delivery channel is located within the annular member. It is advantageous if a portion of the circular ring is located adjacent and radially outward of the inlet, and a diametrical portion of the ring is located in the proximity of the collecting surface.
  • FIG. 1 is a schematic axial sectional view illustrating an embodiment of a yarn twist controlling device according to the invention
  • FIG. 2 is a fragmentary schematic partly perspective view illustrating the device in the operational position of FIG. 1;
  • FIG. 3 is a fragmentary schematic, view illustrating the device in another tion.
  • FIG. 4 is a fragmentary schematic plan view illustrating the device with the spinning chamber omitted in the operational position of F IG. 3.
  • a substantially cylindrical body 2 projects into an opening in a rotary spinning chamber 4 which is rotated about an axis by a drive shaft 411.
  • Spinning chamber 4 has two frusto-conical walls forming a circular collecting surface 4b to which fibers 1 are supplied through an inlet channel terminating in an annular recess 2b.
  • the fibers are spun on the rotating collecting surface 412 into a yarn 5 which is transported by a pair of transporting rollers 7 in the direction of the arrow through the delivery channel 6 which has an inlet 9 located in the spinning chamber.
  • a rotary take-up means 8a provided with winding means, not shown, forms a bobbin 8 of the yarn 5.
  • Delivery channel 6 and inlet 9 are disposed coinciding with the axis of rotation of spinning chamber 4 so that the yarn portion 5a between collecting surface 4b and inlet 9 revolves with the spinning chamber and implies a twist to the yarn portion 5b extending through the delivery channel 6 to the transporting rollers 7.
  • a guide means in the form of a circular ring 11 is secured to the planar circular face 20 of the supporting body 2.
  • Guide ring 11 has such a diameter that a portion 11a thereof is located radially outward of the inlet 9, while the corresponding diametrically located portion 11b is located adjacent the circular periphery of face 2c of supporting body 2, and in the proximity of the collecting surface 4b.
  • the distance a between inlet 9 and the point of guide ring 11 slidingly engaged by yarn portion 5a varies during rotation, and in the position shown in broken lines, the distance a is shorter than the distance a.
  • the distance b between the engaged point of partly perspective operational posi- 11 and collecting surface 3 also varies, and indistance a decreases, so that the distance b is greater than the distance a, although the distance b is smaller than the distance a.
  • the distance b is a maximum [2", while the distance a is zero.
  • yarn portion 5a revolves from the position shown in FIGS. 1 and 2 to the positions shown in FIG. 3, and back to the position shown in FIGS. 1 and 2. Twist is produced between the nip of the transporting rollers 7 and the points of guide ring 11 slidingly engaged by yarn portion 5a so that the guide ring 11 performs in the device of the present invention the function of the annular edge of the inlet 9 in constructions of the prior art.
  • guide ring 11 of the present invention permits the spreading of the twist almost to the collecting surface.
  • the yarn is twisted between rollers 7 and ring 11. In the position of FIG. 3, the twist also extends over the distance a which is equal to the diameter of the circular guide ring 11. After turning movement for 180 degrees to the position of FIG. 2, the twist spreads from portion a to portion b" and the twist in the yarn reaches the collecting surface 3.
  • Yarn twist controlling device for a rotary spinning chamber having an annular fiber collecting surface, comprising supporting means formed with a delivery channel having an inlet for the spun yarn so that the yarn has a first revolving yarn portion extending from said collecting surface to said inlet, and a second twisted yarn portion moving outward in said delivery channel; wherein the improvement comprises guiding means on said supporting means for slidingly guiding said first yarn portion and being at least partly located between said inlet and said collecting surface so that the twist of said second yarn portion spreads to said first yarn portion.
  • said supporting means is a body having said inlet disposed coinciding with the axis of rotation of said spinning chamber; and wherein said guide means is mounted on said body and has a portion located adjacent said inlet of said delivery channel radially outwardly of the same and another portion located spaced from said inlet and in the proximity of said collecting surface.
  • said supporting means is a body having said inlet disposed coinciding with the axis of rotation of said spinning chamber; and wherein said guide means is a circular ring secured to said body in a position in which said inlet is located within said circular ring in an eccentric position in relation to the center of said circular ring.
  • planar surface has a circular periphery concentric with and spaced a short distance from said collecting surface; and wherein said circular ring has a diameter corresponding to the radius of said periphery and is disposed in a position in which a portion of said ring is located adjacent and outwardly of said inlet, and a diametrical portion of said ring is located adjacent said circular periphery within the same so that the distances from said inlet to the points of said ring engaged by said yarn vary, and the distances from said points to said collecting surface vary.
  • Yarn twist controlling device as defined in claim 1 and comprising a pair of transporting means gripping said yarn outwardly of said delivery channel for transporting the yarn from said collecting surface to said inlet and through said delivery channel.
  • said guide means is a stationary annular member secured to said supporting means in a position located in said spinning chamber; and wherein said inlet is located within said annular member in such a position that the distances from the points of said member engaged by said first yarn portion to said inlet vary during each revolution of said spinning chamber.

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  • 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)
US599942A 1965-12-07 1966-12-07 Yarn twist controlling device Expired - Lifetime US3336742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS733565 1965-12-07

Publications (1)

Publication Number Publication Date
US3336742A true US3336742A (en) 1967-08-22

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ID=5422291

Family Applications (1)

Application Number Title Priority Date Filing Date
US599942A Expired - Lifetime US3336742A (en) 1965-12-07 1966-12-07 Yarn twist controlling device

Country Status (6)

Country Link
US (1) US3336742A (enrdf_load_stackoverflow)
AT (1) AT266657B (enrdf_load_stackoverflow)
BE (1) BE690430A (enrdf_load_stackoverflow)
CH (1) CH453975A (enrdf_load_stackoverflow)
DE (1) DE1535014C3 (enrdf_load_stackoverflow)
GB (1) GB1132743A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3457716A (en) * 1967-07-14 1969-07-29 Vyzk Ustav Bavlnarsky Apparatus for continuous spinning of fibers
US4481766A (en) * 1981-12-29 1984-11-13 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Yarn draw off tube for open-end spinning unit
US5359846A (en) * 1991-07-29 1994-11-01 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Spinning apparatus of rotor type open-end spinning unit and rotor driving method
US5437147A (en) * 1992-08-20 1995-08-01 Burckhardt America, Inc. Open end spinning device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3634567A1 (de) * 1986-04-04 1987-10-08 Joachim Prof Dr Luenenschloss Verfahren und vorrichtung zum abziehen des garns aus der fasersammelrille des rotors einer offenend-rotor-spinnvorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3107477A (en) * 1949-11-23 1963-10-22 Meimberg Julius Process and apparatus for spinning fibrous materials

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL130261C (enrdf_load_stackoverflow) * 1960-07-28

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107477A (en) * 1949-11-23 1963-10-22 Meimberg Julius Process and apparatus for spinning fibrous materials
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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3457716A (en) * 1967-07-14 1969-07-29 Vyzk Ustav Bavlnarsky Apparatus for continuous spinning of fibers
US4481766A (en) * 1981-12-29 1984-11-13 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Yarn draw off tube for open-end spinning unit
US5359846A (en) * 1991-07-29 1994-11-01 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Spinning apparatus of rotor type open-end spinning unit and rotor driving method
US5437147A (en) * 1992-08-20 1995-08-01 Burckhardt America, Inc. Open end spinning device
US5475974A (en) * 1992-08-20 1995-12-19 Burckhardt America, Inc. Open end spinning device
US5675965A (en) * 1992-08-20 1997-10-14 Burckhardt America, Inc. Navel member for open end spinning device

Also Published As

Publication number Publication date
BE690430A (enrdf_load_stackoverflow) 1967-05-02
DE1535014C3 (de) 1974-10-03
CH453975A (de) 1968-03-31
DE1535014B2 (de) 1974-02-28
GB1132743A (en) 1968-11-06
DE1535014A1 (de) 1970-06-18
AT266657B (de) 1968-11-25

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