US3404523A - Device for guiding yarn - Google Patents

Device for guiding yarn Download PDF

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Publication number
US3404523A
US3404523A US598275A US59827566A US3404523A US 3404523 A US3404523 A US 3404523A US 598275 A US598275 A US 598275A US 59827566 A US59827566 A US 59827566A US 3404523 A US3404523 A US 3404523A
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US
United States
Prior art keywords
yarn
spinning chamber
section
cross
guiding
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
US598275A
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English (en)
Inventor
Kubovy Miloslav
Jirasek Erik
Zavadsky Karel
Stary Josef
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 US3404523A publication Critical patent/US3404523A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

  • ABSTRACT F THE DISCLOSURE A device for guiding yarn which passes from the outlet of a rotary spinning chamber to a yarn take-up.
  • the device comprises a guide member formed with an elongated yarn-conveying passage and this passage has an intermediate portion of smallest cross section and two outward portions located on opposite sides of the intermediate portion. Each of the outward portions has a cross section which increases in the direction away from the intermediate portion.
  • the present invention relates to an improved yarn guiding device, and more specifically to a device for guiding yarn which passes from the outlet of a rotary spinning chamber to a yarn take-up. Still more specilically, the invention relates to such a yarn guiding device for guiding yarn fromthe spinning chamber of an apparatus used in the continuous ringless spinning of fibers.
  • the yarn rubs against the wall surrounding the opening of substantially constant cross section, and secondly, the yarn also rubs against the edge at the inlet end of the yarn guiding passage, that is the end which communicates with the outlet of the spinning chamber.
  • the yarn is subjected to a certain amount of damage and it need not be specifically emphasized that this is highly undesirable.
  • the use of these devices with known spinning chambers makes it very difiicult to return the end of the yarn into the spinning chamber if a yarn breakage has occurred and if it is necessary to reprime, that is to reconnect the end of the yarn to the layer which has formed on the inner circumferential surface of the spinning chamber wall.
  • a more specific object of the invention is to provide a device for guiding yarn which passes from the outlet 3,404,523 Patented Oct. 8, 1968 of the rotary spinning chamber to a yarn take-up, and such a device is not to damage in any way the yarn passing therethrough.
  • An additional object of the invention is to provide such a device of the type set forth above which facilitates returning of the yarn end into the spinning chamber for the purpose of repriming.
  • a device for guiding yarn which passes from the outlet of the rotary spinning chamber to a yarn take-up.
  • Such device comprising a guide member having an elongated yarn-conveying passage therein.
  • the passage has an intermediate portion of smallest cross section and it further comprises two ⁇ outward portions which are located on opposite sides of the intermediate portion.
  • Each of the outward portions has a cross section which increases in the direction away from the intermediate portion.
  • reference numeral 4 identifies a rotary spinning chamber which rotates in the direction of the arrow.
  • the spinning chamber 4 is provided with an internal circumferential collecting surface 3 and has an open end which is not identified with a separate reference numeral but is clearly evident.
  • Spaced from this open end th"e spinning chamber 4 is provided in its circumferential wall with a plurality of orifices 5 and the purpose of these is to set up, during rotation of the chamber 4, a negative pressure within the chamber 4.
  • a channel or tube 2 extends into the open end of the chamber 4 and feeds a constant stream 1 of separated bers into the interior of spinning chamber 4 so that these fibers impinge against the collecting surface 3. Under the influence of centrifugal force, to which they are subjected upon impinging against the collecting surface 3, the fibers of stream 1 form a relatively cohesive mass which is withdrawn from the collecting surface 3 in form of a yarn 6.
  • a withdrawing device which may consist of two nip rollers 9, one of which may be driven, is provided spaced from the outlet of the rotary spinning chamber 4 and downstream of this withdrawing device there is provided a yarn take-up, such as bobbin 10 onto which the yarn is wound.
  • the yarn is guided out of the open side of the spinning chamber 4 by a guiding device, namely the funnel 8.
  • This funnel 8 is provided with a draw-off channel 7 extending the entire length of the funnel and having, as is clearly evident from the drawing, an intermediate portion of smallest cross section and two outward portions which are located on ⁇ opposite sides of the intermediate portion. Each of these outward portions has a cross section which increases in the direction away from the intermediate portion as is also evident from the drawing.
  • the yarn 6 being withdrawn from the collecting surface 3 of the rotary spinning chamber 4 is gently deflected by the innermost outward portion of the channel 7, that is the outward portion which is located at or within the open side of the spinning chamber 4 and which converges in its cross section toward the portion of narrowest cross section.
  • the yarn 6 could rub and thereby be damaged, and there is only a relatively small or rather short wall portion over which the yarn 6 contacts the wall surrounding the passage 7.
  • the construction here shown greatly -reduces damage resulting from frictional contact between the yarn 6 and the funnel 8 and thus contributes significantly tofa more efficient handling of the yarn.
  • the return of the free yarn end 6 into the spinning chamber 4 is aided by the fact that 'the outer one of the outward portions of channel 7, that is the one which is located closer to the withdrawing device 9, diverges in its cross section in the direction towards this withdrawing device.
  • its cross section decreases in the direction towards the spinning chamber so that the free end of the yarn 6, when such free end is being returned into the spinning chamber 4, is thus reliably guided by the converging surfaces 11 into the portion of narrowest cross section of the channel 7.
  • the yarn will move along the diverging surface of the inner of the outward portions of channel 7 and will thereby be guided gently in the direction towards the collecting surface 3 for link-up with the fibrous mass forming thereon.
  • the velocity of the carrier medium utilized in repriming increases as the cross section of the channel 7 decreases, as seen in the direction of the returning movement of the s 4 free yarn end, so that the speed of the yarn end is accelerated and the yarn is straightened.
  • a spinning device in combination, a rotary spinning chamber having an outlet; and guide means for guiding yarn which passes from said guide means, comprising a guide member having an elongated yarn-conveying passage therein, said passage having an intermediate portion of smallest cross-section and two outward portions located on opposite sides of said intermediate portion and each having la cross-section which increases in the direction away from said intermediate portion, one of said outward portions being located in said spinning chamber and said intermediate portion being located within the confines of said outlet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US598275A 1965-12-01 1966-12-01 Device for guiding yarn Expired - Lifetime US3404523A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS719665 1965-12-01

Publications (1)

Publication Number Publication Date
US3404523A true US3404523A (en) 1968-10-08

Family

ID=5420648

Family Applications (1)

Application Number Title Priority Date Filing Date
US598275A Expired - Lifetime US3404523A (en) 1965-12-01 1966-12-01 Device for guiding yarn

Country Status (9)

Country Link
US (1) US3404523A (enExample)
AT (1) AT264334B (enExample)
BE (1) BE690265A (enExample)
CH (1) CH454689A (enExample)
DE (1) DE1560339B2 (enExample)
ES (1) ES333974A1 (enExample)
FR (1) FR1504872A (enExample)
GB (1) GB1164439A (enExample)
SE (1) SE309930B (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511042A (en) * 1967-12-08 1970-05-12 Chary Anna Seidov Spindleless spinning apparatus
US3778989A (en) * 1971-06-21 1973-12-18 Skf Kugellagerfabriken Gmbh Apparatus for withdrawing thread
US3789597A (en) * 1971-06-21 1974-02-05 Skf Kugellagerfabriken Gmbh Apparatus for the spindleless spinning of textile fibers
DE3640217A1 (de) * 1986-11-25 1988-05-26 Fritz Stahlecker Oe-rotorspinnmaschine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1419498A (en) * 1972-02-23 1975-12-31 Platt Saco Lowell Ltd Spinning of textile fibres
GB2128643B (en) * 1982-10-23 1986-01-08 Elitex Zavody Textilniho Open-end spinning thread guides

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956328A (en) * 1956-08-08 1960-10-18 Eastman Kodak Co Bulk beamer process and apparatus for manufacturing bulk yarn
GB976512A (en) * 1960-07-28 1964-11-25 Spinnbau Gmbh Method and apparatus for spinning natural fibres or staple fibres

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956328A (en) * 1956-08-08 1960-10-18 Eastman Kodak Co Bulk beamer process and apparatus for manufacturing bulk yarn
GB976512A (en) * 1960-07-28 1964-11-25 Spinnbau Gmbh Method and apparatus for spinning natural fibres or staple fibres

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511042A (en) * 1967-12-08 1970-05-12 Chary Anna Seidov Spindleless spinning apparatus
US3778989A (en) * 1971-06-21 1973-12-18 Skf Kugellagerfabriken Gmbh Apparatus for withdrawing thread
US3789597A (en) * 1971-06-21 1974-02-05 Skf Kugellagerfabriken Gmbh Apparatus for the spindleless spinning of textile fibers
DE3640217A1 (de) * 1986-11-25 1988-05-26 Fritz Stahlecker Oe-rotorspinnmaschine

Also Published As

Publication number Publication date
AT264334B (de) 1968-08-26
ES333974A1 (es) 1967-10-16
BE690265A (enExample) 1967-05-25
GB1164439A (en) 1969-09-17
CH454689A (de) 1968-04-15
FR1504872A (fr) 1967-12-08
DE1560339B2 (de) 1973-08-02
DE1560339A1 (de) 1970-11-19
SE309930B (enExample) 1969-04-08

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