EP0562075B1 - Dispositif d'etirage de fils continus thermoplastiques - Google Patents

Dispositif d'etirage de fils continus thermoplastiques Download PDF

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Publication number
EP0562075B1
EP0562075B1 EP92920356A EP92920356A EP0562075B1 EP 0562075 B1 EP0562075 B1 EP 0562075B1 EP 92920356 A EP92920356 A EP 92920356A EP 92920356 A EP92920356 A EP 92920356A EP 0562075 B1 EP0562075 B1 EP 0562075B1
Authority
EP
European Patent Office
Prior art keywords
godet
rotation
thread
filament yarns
godets
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
EP92920356A
Other languages
German (de)
English (en)
Other versions
EP0562075A1 (fr
Inventor
Hans Linz
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.)
Viscosuisse SA
Original Assignee
Rhone Poulenc Viscosuisse SA
Societe de la Viscose Suisse SA
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 Rhone Poulenc Viscosuisse SA, Societe de la Viscose Suisse SA filed Critical Rhone Poulenc Viscosuisse SA
Publication of EP0562075A1 publication Critical patent/EP0562075A1/fr
Application granted granted Critical
Publication of EP0562075B1 publication Critical patent/EP0562075B1/fr
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
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch

Definitions

  • the invention relates to a device for spinning of at least two thermoplastic filament yarns on at least two godet duos, each consisting of two rotatable. Godets, of which at least one godet is driven and whose axes of rotation lie skewed to one another and are arranged such that the axis of rotation of one godet is pivotally arranged within one plane and forms an intersection angle ⁇ with the parallel to the non-pivotable axis of rotation and this plane with another Plane that is determined by the non-pivotable axis of rotation and the center of the pivotable axis of rotation and forms an intersection angle.
  • thermoplastic filament yarns such as polyesters, polyamides and the like
  • generic stretching devices with two or more roller or godet duos are used (DE-A-1 907 782).
  • the axes of rotation of the rolls within the godet duo units are slightly inclined towards each other to produce a certain winding pitch of the thread.
  • the two axes of rotation lie within a common plane. Any necessary change in the winding pitch can be easily made by changing the angle that the two axes of rotation form with one another.
  • the object of the invention is to provide a device for spinning of two or more filament yarns, which ensures the maintenance of a sufficient spatial separation between the individual yarn wraps on the godet duos.
  • intersection angle ⁇ formed between the two planes is 10 ° -60 °.
  • the axes of the godets belonging to a godet duo are arranged so that they can be pivoted relative to one another in such a way that the pivoting plane of a godet axis with the plane of connection of the godet axes, which contains both the center point of this axis and the other godet axis, forms the intersection angle ⁇ .
  • a working width of the godets from 250 mm to 400 mm, in particular from 250 mm to 350 mm, has the advantage that several threads can be treated at the same time and several turns can be placed on the godet duo. Such large working widths can only be meaningfully exploited using the arrangement of the axes of rotation of the godets according to the invention
  • reference numerals 1 to 1 ' represent a first godet of two godet duos.
  • the second godet of the godet duo is labeled 2 to 2 '.
  • a filament yarn 3 is passed over the godet duos 1, 2 and 1 ', 2'.
  • Peg pairs 4-4 'and 5-5' are provided for pivoting suspension of the godets in the drafting system.
  • FIG. 2 the godet duos 1, 2; 1 ', 2' shown in side view, wherein only the godet 1 of the godet duo 1, 2 and the godet 1 'of the godet duo 1', 2 'are visible.
  • a filament yarn group 3 consisting of the filament yarns 3 ', 3'',3''' and 3 '''', is placed on the godet 1 coming from below and leaves the godet 1 'after each winding of the two godet duos five times.
  • B o means the width of the thread sheet when entering gallet 1,
  • B1 the width of the thread sheet when leaving the godet 1 and B2 the width of the thread group when leaving the godet 2.
  • Galette 1 is rotatably mounted about an axis of rotation 7.
  • Galette 2 is rotatably mounted about an axis of rotation 8.
  • the axes of rotation 7 and 8 are skew to each other, i.e. they also have no intersection in their extension.
  • a plane 10 is determined by the axis of rotation 7 and the center 9 of the axis of rotation 8.
  • the parallel 11 to the axis of rotation 7 through the center 9 is the intersection between the plane 10 and a plane 12.
  • the two planes 10 and 12 intersect at an angle ⁇ below. Within the plane 12, the axis of rotation 8 forms an intersection angle ⁇ with the parallel 11.
  • the godets 1 and 1 'and 2 and 2' are pivotably mounted on a pair of pins 4 and 4 'and 5 and 5'.
  • the pairs of pins 4 and 4 'and 5 and 5' are arranged with each other but not parallel to each other. It is thereby achieved that the pivoting planes of the godets 1 and 1 'form an intersection angle with the connecting planes. This could be achieved just as well by vertically displacing the godets belonging to a godet duo. A vertical arrangement of the godets would significantly increase the overall height of the machine and would make it disproportionately difficult to operate.
  • the suspension of the godets shown on pairs of pins is exemplary and only one of the possible technical solutions for realizing the invention.
  • the spatial orientation of the axes of rotation of the godets relative to one another is essential for the invention.
  • the family of threads consisting of the four filament yarns 3 ', 3' '3' '' and 3 '' '' running parallel to each other, runs from the bottom near the drive-side edge on the godet 1 from the godet duo 1, 2 on. She loops around the godet duo 1.2 five times, with all threads being laid close to the free right edge of the godet according to the winding pitch created with the invisible godet 2. Then the threads of the thread group 3 of the godet 1 'of the godet duo 1', 2 'are fed, which is looped five times in the same way.
  • the representation of four filament yarns is to be understood as an example and without limitation.
  • the problem solved according to the invention applies analogously to each thread count greater than or equal to two.
  • the lines shown only indicate the zones on the godet circumference on which the filament yarns 3 '3' ', 3' '' and 3 '' '' are positioned.
  • the lateral extent of the filament yarns is not shown.
  • the outer of the four filament yarns 3 'and 3' ''' 'shown are drawn more strongly than the inner filament yarns 3' 'and 3' ''.
  • the axis of rotation of the second godet is pivoted relative to the first one in such a way that the desired winding pitch of the filament yarns is achieved.
  • the decrease in the winding pitch along the godet axis from the run-up zone to the run-off zone can be clearly seen.
  • the original total width B0 present at the inlet of the thread sheet 3 is reduced to the width B1 at the outlet.
  • the width of the thread sheet 3 is to be understood as the center of gravity of the first and last of the filament yarns passed over the roller duo.
  • B1 there represents the inlet width of the thread sheet. It is reduced on the way over the second godet duo in the same way to the width B2 as before the inlet width B0 on B1.
  • the axis of rotation of the godet 1 is oriented skew to the axis of rotation of the godet 2 within the plane 12.
  • the intersection angle ⁇ between levels 10 and 12 is 90 °.
  • the godet duo 1.2 is wrapped eight times around a thread.
  • the winding pitch between the individual wraps increases on the godet duo 1,2 from the casserole to the drain from 30.5 mm by 4 mm to 26.5 mm.
  • the turn gradient as a function of the axis coordinate is shown graphically in FIG. 4, curve a.
  • the godet arrangement according to Example 1 is modified such that the cutting angle between plane 10 and plane 12 is 35 °.
  • the decrease in the winding pitch along the godet axis is less than 1 mm.
  • the turn gradient as a function of the axis coordinate is shown graphically in FIG. 4, curve b.
  • a godet duo as in Example 1 is wrapped five times over its entire working width by four filament yarns.
  • the pitch of the first thread winding of the first thread is 77 mm.
  • This results in a separation efficiency SW of 0.41 ie the original width of the thread sheet is reduced to 41%.
  • Two rotating godets 300 mm in length and 190 mm in diameter are wrapped five times by four filament yarns as in Example 3.
  • the axes of the two godets are not skew to one another, but lie within one plane, ie planes 10 and 12 are coplanar, the intersection angle ⁇ is 0.
  • the winding pitch of the first thread winding of the first thread is 58 mm.
  • Two rotating godets 300 mm in length and 190 mm in diameter are looped five times over their entire working width as in Example 3 by four filament yarns.
  • the axes of the two godets are skew to each other. Their mutual orientation is varied in such a way that the intersection angle between planes 10 and 12 takes on different values between 10 ° and 80 °.
  • the influence of the cutting angle ⁇ on the width of the thread sheet B0 at the inlet and B1 at the outlet of the godet duo was determined and the degree of separation SW was calculated.
  • Table 1 together with those of Examples 3 and 4. It can be seen from this that the values for the degree of separation SW do not change monotonically with the cutting angle, but run through a maximum. This curve is shown graphically in FIG. 5, curve a.
  • the separation effect SW depends in a non-monotonous manner on the angle ⁇ of the suspension of the godet duo.
  • an angle range of 10 ° ⁇ ⁇ 60 60 ° was found in the investigations, within which the separation effect SW runs through a maximum.
  • the resulting distance between threads with a width of 5 mm after the passage of four godet duos is at least twice as large as known.
  • the higher level of operational safety achieved thereby results in a better guarantee of the quality of the filament yarn produced, and on the other hand it enables or at least facilitates the transition to the simultaneous treatment of two or more threads.
  • the result is a significant increase in the productivity of the spin-stretching process compared to the one-end process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

Dispositif d'étirage à extrémités multiples de fils continus thermoplastiques sur au moins deux duos de cylindres d'étirage (1, 2 et 1', 2') dont les axes de rotation (7) et (8) sont inclinés l'un par rapport à l'autre de sorte que l'axe de rotation (8) d'un des cylindres d'étirage (2) peut pivoter dans un plan (12) et que ce plan (12) forme un angle (β) de 10° à 60° avec le plan (10). Le dispositif permet pour la première fois de filer et d'étirer simultanément à plusieurs extrémités.

Claims (2)

  1. Dispositif pour le filage et l'étirage d'au moins deux fils continus thermoplastiques sur au moins deux duos de galettes (1, 2 et 1', 2'), comprenant chaucun deux galettes rotatives, dans lesquelles au moins une galette est entraînée et dont leurs axes de rotation (7, 8) sont disposés en gauchis les unes par rapport aux autres, de manière à ce que l'axe de rotation (8) de la galette (2) à 1' intérieur de la surface (12) soit orientable, et avec les parallèles (11) par rapport à l'axe de rotation (7) non orientable forme un angle d'intersection α et la surface (12) avec une autre surface (10), qui est définie par un axe de rotation (7) non orientable et par un point central (9) de l'axe de rotation (8) orientable et forme un angle d'intersection β, caractérisé en ce que entre les deux surfaces (10) et (12) l'angle d'intersection (β) formé comprend 10° - 60°.
  2. Dispositif selon la revendication 1, caractérisé en ce que la largeur de travail des galettes (1, 2) comprend 250 mm - 400 mm.
EP92920356A 1991-10-15 1992-10-07 Dispositif d'etirage de fils continus thermoplastiques Expired - Lifetime EP0562075B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH3023/91 1991-10-15
CH302391 1991-10-15
PCT/CH1992/000203 WO1993008320A1 (fr) 1991-10-15 1992-10-07 Dispositif d'etirage de fils continus thermoplastiques

Publications (2)

Publication Number Publication Date
EP0562075A1 EP0562075A1 (fr) 1993-09-29
EP0562075B1 true EP0562075B1 (fr) 1996-03-13

Family

ID=4246903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92920356A Expired - Lifetime EP0562075B1 (fr) 1991-10-15 1992-10-07 Dispositif d'etirage de fils continus thermoplastiques

Country Status (8)

Country Link
US (1) US5419022A (fr)
EP (1) EP0562075B1 (fr)
JP (1) JP2896810B2 (fr)
KR (1) KR0173484B1 (fr)
BR (1) BR9205505A (fr)
DE (1) DE59205701D1 (fr)
ES (1) ES2086767T3 (fr)
WO (1) WO1993008320A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007040215A1 (de) 2007-08-25 2009-02-26 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Führen und Erwärmen synthetischer Fäden oder Fasern

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7203818B2 (ja) * 2017-08-05 2023-01-13 エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト 糸群を引き出しかつ巻き取る装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH497549A (de) * 1968-04-24 1970-10-15 Rieter Ag Maschf Verfahren zum Verstrecken und Aufwinden eines Endlos-Filament-Fadens und Vorrichtung zur Durchführung des Verfahrens
US3978192A (en) * 1971-09-23 1976-08-31 Sussman Martin V Method of drawing fibers using a microterraced drawing surface
GB1415947A (en) * 1972-09-11 1975-12-03 Autlmatik Apparate Maschinenba Spinning machines for producing and reeling synthetic fibres
DE3026520C2 (de) * 1980-07-12 1985-03-21 Davy McKee AG, 6000 Frankfurt Verfahren zur Herstellung hochfester technischer Garne durch Spinnstrecken
US4293518A (en) * 1980-07-31 1981-10-06 E. I. Du Pont De Nemours And Company Control of synthetic yarns during drawing with heated rolls
US4522774A (en) * 1981-06-11 1985-06-11 Badische Corporation Integrated process for the production of textured polycaprolactam multifilament yarn
DE3617248C2 (de) * 1985-08-30 1995-05-24 Barmag Barmer Maschf Verfahren zum Herstellen eines Kompositfadens aus Chemiefasern
JP2913712B2 (ja) * 1989-12-26 1999-06-28 東レ株式会社 多糸条合成繊維の直接紡糸延伸巻取方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007040215A1 (de) 2007-08-25 2009-02-26 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Führen und Erwärmen synthetischer Fäden oder Fasern

Also Published As

Publication number Publication date
DE59205701D1 (de) 1996-04-18
KR930703487A (ko) 1993-11-30
JP2896810B2 (ja) 1999-05-31
KR0173484B1 (ko) 1999-02-18
EP0562075A1 (fr) 1993-09-29
BR9205505A (pt) 1994-04-05
ES2086767T3 (es) 1996-07-01
WO1993008320A1 (fr) 1993-04-29
JPH06503611A (ja) 1994-04-21
US5419022A (en) 1995-05-30

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