EP0444419B1 - Verfahren zum Verfestigen und/oder Zwirnen eines mit geringer Fadenspannung aufgewickelten Vorgarnes - Google Patents

Verfahren zum Verfestigen und/oder Zwirnen eines mit geringer Fadenspannung aufgewickelten Vorgarnes Download PDF

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Publication number
EP0444419B1
EP0444419B1 EP91101012A EP91101012A EP0444419B1 EP 0444419 B1 EP0444419 B1 EP 0444419B1 EP 91101012 A EP91101012 A EP 91101012A EP 91101012 A EP91101012 A EP 91101012A EP 0444419 B1 EP0444419 B1 EP 0444419B1
Authority
EP
European Patent Office
Prior art keywords
yarn
spindle
pot
bobbin
package
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
EP91101012A
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German (de)
English (en)
French (fr)
Other versions
EP0444419A2 (de
EP0444419A3 (en
Inventor
Jürgen Kallmann
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.)
Palitex Project Co GmbH
Original Assignee
Palitex Project Co GmbH
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 Palitex Project Co GmbH filed Critical Palitex Project Co GmbH
Publication of EP0444419A2 publication Critical patent/EP0444419A2/de
Publication of EP0444419A3 publication Critical patent/EP0444419A3/de
Application granted granted Critical
Publication of EP0444419B1 publication Critical patent/EP0444419B1/de
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
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/10—Spinning or twisting machines in which the product is wound-up continuously for imparting multiple twist, e.g. two-for-one twisting
    • D01H1/105—Arrangements using hollow spindles, i.e. the yarns are running through the spindle of the unwound bobbins
    • D01H1/106—Two-for-one twisting

Definitions

  • the invention relates to a method for strengthening and / or twisting a low-strength roving wound with a low thread tension on a bobbin tube to form a bobbin according to US Pat. No. 3,466,864.
  • So-called air-spun yarns are known, for the manufacture of which a fiber sliver is stretched over a high-drafting drafting system and fed to an air-jet spinning device. Specially designed air nozzles capture you Part of the outer fibers of the sliver and wind them spirally around the fiber strand. As a result, the sliver only has a low strength, which is sufficient, however, to wind up the stretched and solidified sliver behind the nozzle head, for example to form a cheese.
  • Such air-spun yarns also form the basis for, for example, folded yarns marketed under the trade names Plyfil yarns and twin-jet yarns.
  • the Plyfil process assumes that two such drawn and slightly solidified slivers from two adjacent spinning heads are brought together, ie two single strands are fanned and the two strands are wound together, for example to form a cheese.
  • This bobbin is then presented to a twisting device, for example a double-wire twisting spindle, in order to twist the two strands about their common axis, so that a real twisted thread is produced which has both a common rotation of both strands but also a rotation in the individual strands.
  • the roving spool is inserted into the pot of the pot twisting spindle, which is then set in rotation, so that the roving is pulled off the spool, usually a disc spool, with balloon formation and to the balloon thread guide eye in Vertex of the thread balloon is guided.
  • the pot surrounding the bobbin rolls with the spindle, with the thread balloon resting against the pot.
  • the two skeins of a folded yarn can also be held together using other methods, for example by swirling the adhesive in segments, possibly also by using heat treatment depending on the quality and character of the roving being processed.
  • a bobbin or specialist bobbin is present without sufficient pre-rotation of the single strand or of two or more strands wound up, it is not possible to process such a roving in a pot-twisted spindle.
  • the problem lies in the lack of strength of such a roving.
  • the yarn layers of the bobbin loosen from the surface when the pot twist spindle rotates due to the centrifugal force that occurs the bobbin and swing around the yarn package, roughly comparable to the well-known Saturn rings. In this way it is not possible to carry out a stable yarn strengthening and / or twisting process.
  • the invention has for its object to provide a method with which it is possible to use a pot twist spindle for twisting and / or solidifying the roving even with a low-strength roving which is loosely wound into a yarn package.
  • the method according to the invention is characterized in that such a package is inserted with the bobbin in a spindle pot, the spindle is rotated, then the bobbin is pulled out of the package and then the roving is pulled off the inner surface of the package and becomes one Coil or twisted bobbin wound up.
  • the method according to the invention is essentially based on the fact that the yarn package expands under the influence of centrifugal force at the start of the rotation and detaches from the inner bobbin tube, so that the bobbin tube can be removed from the package body, so that the roving can then be removed from the inner surface of the package body can be drawn off and wound into a bobbin or twine bobbin.
  • the implementation the process of using the pot of a pot twisting spindle, so that the roving can be pulled upwards out of the rotating pot.
  • the spool cup of a multi-wire twisting spindle can be used as the spindle pot, the spindle or bobbin pot being set in rotation in the opposite direction to the direction of rotation of the spindle rotor of the multi-wire twisting spindle, so that the roving pulled off from the inner surface of the yarn winding body enters the hollow spindle axis the multi-wire twist spindle is retracted to then follow the usual processing of a multi-wire twist spindle.
  • Multi-wire spindle described in DE-PS 572 050 differs from a conventional double-wire twisting spindle in that, in addition to the rotation of the spindle rotor, the bobbin is also set in rotation, namely in the opposite direction to the direction of rotation of the spindle rotor, between the spindle rotor and the bobbin a suitable intermediate gear is interposed.
  • Either an air-spun yarn as a single strand or, in particular, a folded roving consisting of at least two individual strands which has been wound up from two individual strands of an air-spun yarn to form a bobbin can be used as the roving.
  • the yarn end located on the inner circumferential surface of the bobbin is fixed at the beginning of winding onto the bobbin so that the end of the yarn remains fixed to the bobbin when the bobbin is removed from the bobbin .
  • FIG. 1 shows four successive work steps based on the representations A, B, C and D.
  • a conventional winding device which includes a conventional, tangentially effective friction drive roller 1 and a stroke laying device, a roving 2 having only a low strength (air-spun yarn or folded yarn) on a bobbin tube 3 with low thread tension into one Spool 4 wound.
  • the unit consisting of bobbin tube 3 and bobbin 4 is then inserted (Fig. 1-B) into the pot 6 of a pot twist spindle 5.
  • the pot twist spindle is set in rotation, which has the consequence that the package body expands under the influence of the centrifugal force outwards, so that the bobbin tube 3 can be pulled upwards.
  • the roving end located on the inner circumferential surface 4 'of the yarn winding body 4 is then gripped and pulled upwards as the pot twisting spindle continues to rotate.
  • the one on this Solidified thread or twine 2 'can then be wound up in the usual way, for example to form a cheese 7 (Fig. 1-D).
  • 1-D schematically shows a friction drive roller 8 and an associated traversing thread guide 9.
  • FIG. 2 shows a variant of the method in which the bobbin 11 of a multi-wire twisting spindle 10 is used as the spindle pot.
  • the bobbin 11 rotatably mounted on the spindle rotor 12 is rotated by means of an intermediate gear 13 in the opposite direction to the direction of rotation of the spindle rotor 12.
  • the unit consisting of the bobbin tube 3 and the bobbin 4 is inserted into the bobbin or spindle pot 11 in accordance with process stage B, in order then to be able to pull the bobbin casing out of the bobbin as soon as the spindle in accordance with stage C. - or coil pot has been set in rotation.
  • the roving end located on the inner circumferential surface of the bobbin is preferably fixed at the beginning of the winding on the bobbin tube so that the roving end remains fixed on the bobbin tube when the bobbin tube is pulled out of the bobbin to facilitate finding and grasping the roving end.

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)
EP91101012A 1990-02-26 1991-01-26 Verfahren zum Verfestigen und/oder Zwirnen eines mit geringer Fadenspannung aufgewickelten Vorgarnes Expired - Lifetime EP0444419B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005788A DE4005788A1 (de) 1990-02-26 1990-02-26 Verfahren zum verfestigen und/oder zwirnen eines mit geringer fadenspannung aufgewickelten vorgarnes
DE4005788 1990-02-26

Publications (3)

Publication Number Publication Date
EP0444419A2 EP0444419A2 (de) 1991-09-04
EP0444419A3 EP0444419A3 (en) 1991-11-27
EP0444419B1 true EP0444419B1 (de) 1994-11-17

Family

ID=6400853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101012A Expired - Lifetime EP0444419B1 (de) 1990-02-26 1991-01-26 Verfahren zum Verfestigen und/oder Zwirnen eines mit geringer Fadenspannung aufgewickelten Vorgarnes

Country Status (5)

Country Link
US (1) US5170607A (cs)
EP (1) EP0444419B1 (cs)
JP (1) JPH04214426A (cs)
CZ (1) CZ279388B6 (cs)
DE (2) DE4005788A1 (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10102907A1 (de) * 2001-01-23 2002-07-25 Schlafhorst & Co W Verfahren zum Herstellen eines Stapelfasergarnes
US6923401B2 (en) * 2003-04-07 2005-08-02 Invista North America S.A.R.L. Method for unwinding elastomeric yarn from coiled packages
CN105063830B (zh) * 2015-07-16 2017-03-22 安徽华茂纺织股份有限公司 纺织粗纱条卷微小牵引力检测装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1813611A (en) * 1926-10-22 1931-07-07 Celanese Corp Manufacture of yarns or threads and apparatus therefor
US1955719A (en) * 1931-03-21 1934-04-17 American Bemberg Corp Filament winding and treating
DE572050C (de) * 1931-10-31 1933-03-10 Karl Klitzsch Mehrfachdraht-Zwirnspindel
US2630280A (en) * 1947-05-26 1953-03-03 American Viscose Corp Method and means for unwinding wound packages from the inside
US2574455A (en) * 1948-06-08 1951-11-13 Abbott Worsted Mills Inc Supplying yarn
US2667773A (en) * 1951-08-14 1954-02-02 Alfred Hofmann & Co Warp tensioning bar for knitting machines
BE556971A (cs) * 1955-12-30
DE1140497B (de) * 1960-05-14 1962-11-29 Ludwig Althof Vorrichtung zum Spinnen von Garn aus stapeligen Fasern, insbesondere von Streichgarn
US3466864A (en) * 1967-06-19 1969-09-16 Owens Corning Fiberglass Corp Twisting fibrous strands
US3545698A (en) * 1968-07-30 1970-12-08 Koppers Co Inc Method and apparatus for preventing the collapse of a spool of filament reinforcements
DE2614962C3 (de) * 1976-04-07 1980-05-08 Palitex Project-Company Gmbh, 4150 Krefeld Doppeldrahtzwirnspindel
US4097004A (en) * 1977-05-06 1978-06-27 Ppg Industries, Inc. Method and apparatus for unwinding roving packages from the inside
DE3728213A1 (de) * 1986-08-26 1988-03-10 Hamel Ag Zwirneinrichtung mit dreifacher drallerteilung

Also Published As

Publication number Publication date
CZ279388B6 (cs) 1995-04-12
DE4005788A1 (de) 1991-08-29
EP0444419A2 (de) 1991-09-04
DE59103517D1 (de) 1994-12-22
CS9100498A2 (en) 1991-09-15
JPH04214426A (ja) 1992-08-05
US5170607A (en) 1992-12-15
EP0444419A3 (en) 1991-11-27

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