EP0305305B1 - Vorrichtung zum Erteilen eines Falschdralles an mindestens einem Garn in Fortbewegung - Google Patents

Vorrichtung zum Erteilen eines Falschdralles an mindestens einem Garn in Fortbewegung Download PDF

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Publication number
EP0305305B1
EP0305305B1 EP88420289A EP88420289A EP0305305B1 EP 0305305 B1 EP0305305 B1 EP 0305305B1 EP 88420289 A EP88420289 A EP 88420289A EP 88420289 A EP88420289 A EP 88420289A EP 0305305 B1 EP0305305 B1 EP 0305305B1
Authority
EP
European Patent Office
Prior art keywords
rollers
aprons
support
belts
box
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
EP88420289A
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English (en)
French (fr)
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EP0305305A1 (de
Inventor
Pierre Mirabel
Marcel Schoumacher
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.)
Devtex
Original Assignee
Devtex
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Filing date
Publication date
Application filed by Devtex filed Critical Devtex
Publication of EP0305305A1 publication Critical patent/EP0305305A1/de
Application granted granted Critical
Publication of EP0305305B1 publication Critical patent/EP0305305B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D02G1/08—Rollers or other friction causing elements
    • D02G1/085—Rollers or other friction causing elements between crossed belts
    • 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

Definitions

  • the present invention relates to an improved device for communicating a false torsion by friction to at least one moving wire.
  • This technique consists, in general, of putting the moving wire in contact with a mobile surface, moving transversely with respect to said wire, so that it is twisted upstream and regains its initial twist in downstream.
  • spindles must be able to allow easy positioning of the wire during start-up, offer the possibility of adjusting the running speed of the belts and allow easy change of said belts when they are worn.
  • rollers having a relatively large diameter rollers which are always of equal diameters, which has the consequence of increasing the size of such pins and especially d 'remove the torsion member of the means which deliver the material (wire or fiber) to be treated.
  • the device according to the invention is associated on the one hand with means making it possible to deliver at least one fibrous material between the two belts as well as means making it possible to draw up and return the wire thus treated.
  • such a device can be used both to treat yarns with continuous filaments as yarns of fibers, or even wicks alone or in combination with other textile elements.
  • the spindle with crossed belts is of the type comprising two endless belts (1, 2), mounted on two pairs of rollers (3, 4, 5, 6) , arranged face to face and inclined with respect to each other so that, in normal operation, when the fibrous material (7) (wicks, continuous filaments, combination of such elements, etc.) passes between these belts in the area where they are in contact and they give it a false twist and tend to deliver it.
  • fibrous material (7) wicks, continuous filaments, combination of such elements, etc.
  • the belts (1, 2) are mounted on a housing (8) fixed to the housing of the machine in the following manner.
  • each roller (3, 4, 5, 6) is individually mounted at the end of a support arm respectively (9, 10, 11, 12), the support arm (12) of the roller (6) not being visible in Figure 1.
  • These arms are designed in one piece and are mounted on the housing (1) so that they can optionally be changed.
  • the ends of the arms on which the support rollers are mounted are inclined in order to obtain the desired angle between the two belts. It is therefore sufficient, in order to modify this inclination, to provide support arms comprising ends which are inclined in a different manner.
  • one of the arms in this case the arm (12) for the lower belt and the arm (10) for the upper belt is subjected to the action of means making it possible to modify the tension of each of the belts.
  • This is obtained in the illustrated embodiment, by mounting each arm (10, 12) pivoting about an axis (14), the body of the arm itself being directly subjected to the action of springs (15, 16) (only the spring (15) being illustrated in Figure 1). In this way, a simple articulation is produced.
  • the parallelism between the axes of the rollers supporting the belts may not be respected, but it is however possible to obtain perfect positioning and maintenance of the belts on said rollers thanks to the preferred embodiment in accordance with the invention which will be seen in the following description and in which the surface of said rollers and that of the belts comprises raised portions and complementary corresponding grooves.
  • the lower arm (11) is, for its part, mounted on the housing (8) so as to be able to pivot angularly about an axis (17).
  • This pivoting can be controlled by a pneumatic cylinder (19) and therefore makes it possible, not only to secure the locking of the lower belt (2) against the upper belt (1) in normal operation, but also to achieve an automatic separation of the of them belts, for example when stopping the machine, thus avoiding any sticking between them.
  • the interlocking between the belts (1) and (2) can be adjusted by means of a stop, fixed and adjustable (not shown in the attached diagrams) and which is interposed between the surface of the arm (11) and the surface of the body. (8) inside which this arm is mounted.
  • Such an embodiment therefore allows a disengagement of the belts (1, 2) upon opening and a clutch after start-up, which avoids prolonged contact between the belts, the temperature of which is generally relatively high after a long operation which can cause them to stick and, consequently, high torques during start-up and deterioration of the surface condition of the belts.
  • This therefore also allows adjustment of the intersection of the belts (1, 2) by simple displacement of only one of the belt support rollers.
  • the upper arm (8, 9) which supports the roller (3) is, in turn fixed.
  • the latter in order to ensure perfect retention of the belts (1, 2) on the surface of the rollers, the latter include raised parts (20, 21), three in number in this case (see fig. 6 and 7), while the inner surface of each of the belts has corresponding grooves.
  • Such grooving of the strips makes it possible to rigorously freeze their position in space despite the lack of parallelism between the axes which may result from the simplicity of such an articulation and this, whatever the angle between the strips and therefore the force exerted on them and which tends to move rollers.

Landscapes

  • 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)
  • Treatment Of Fiber Materials (AREA)

Claims (3)

1. Vorrichtung zum Bewerkstelligen einer Vordrehung mittels Reibung an einem faserigen Material, mit einem Gehäuse (8), an dem zwei Endlosriemen (1, 2) angebracht sind, die geneigt zueinander verlaufen, die auf zwei Paaren an Rollen (3, 4, 5, 6) angeordnet sind, und die zwei in gegenseitigem Kontakt befindliche Trums aufweisen, wobei das faserige Material (7) in dem Bereich zwischen den Riemen durchläuft, in dem diese in Berührung miteinander stehen, und zwar einerseits derart, daß diese ihm eine Vordrehung verleihen und andererseits dazu neigen, den gebildeten Faden zu transportieren, und wobei die Vorrichtung folgendes als Kombination enthält:
- Mittel zum Verändern der Neigung der beiden Riemen (1, 2) zueinander;
- Mittel zum Steuern des Druckes (oder des Abstandes) der Riemen untereinander;
- Mittel zum Drehantreiben der Tragrollen der Riemen (1, 2) sowie zum Einrücken bzw. Ausrücken derselben, dadurch gekennzeichnet, daß die Tragrollen (3, 4, 5, 6), die die beiden Riemen (1, 2) tragen, mittels zwei Paaren an Tragarmen (9, 10, 11, 12) am Gehäuse (8) befestigt sind, wobei
- einer der Tragarme (10, 12) eines jeden Paares der Wirkung von Druckmittel ausgesetzt ist, um die Spannung jedes Riemens (1, 2) sicherzustellen;
- wobei zumindest einer der beiden anderen Tragarme (9, 11) derart am Gehäuse (8) befestigt ist, daß er um eine Achse verschwenkbar ist, damit der Druck der beiden Riemen untereinander regelbar ist, wobei die Parallelität zwischen den Achsen der Rollen außer Acht gelassen werden kann;
- wobei die äußeren Enden der Tragarme (9, 10, 11, 12) an denen die Tragrollen (3, 4, 5, 6) befestigt sind, geneigt verlaufen, um den gewünschten Winkel zwischen den beiden Riemen (1, 2) zu erreichen.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Tragrollen (3, 4) oder (5, 6) jedes Riemens (1, 2) verschiedene Durchmesser aufweisen, wobei diejenige Rolle (4, 6), die am weitesten vor dem Gehäuse (8) angeordnet ist, deutlich unter der anderen Rolle angeordnet ist, wobei die Oberflächen der Rollen und der von diesen getragenen Riemen zum einen zumindest eine fortlaufende Rille und zum anderen zumindest einen entsprechend erhabenen Bereich aufweisen, wodurch eine raumfeste Positionierung der Riemen (1, 2) erreicht wird, und zwar trotz der Nicht-Parallelität, die zwischen den Achsen vorhanden sein kann, und wobei dies der Fall ist, wie auch immer der Winkel der Riemen (1, 2) ist.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Antreiben der Antriebsrollen (3, 5) jedes Paares an Rollen mittels eines Endlosriemens (22) erreicht wird, der beiden Rollen gemeinsam ist.
EP88420289A 1987-08-28 1988-08-25 Vorrichtung zum Erteilen eines Falschdralles an mindestens einem Garn in Fortbewegung Expired - Lifetime EP0305305B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8712175 1987-08-28
FR8712175A FR2619831B1 (fr) 1987-08-28 1987-08-28 Dispositif permettant de communiquer une fausse torsion par friction a au moins un fil en mouvement

Publications (2)

Publication Number Publication Date
EP0305305A1 EP0305305A1 (de) 1989-03-01
EP0305305B1 true EP0305305B1 (de) 1991-05-15

Family

ID=9354560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88420289A Expired - Lifetime EP0305305B1 (de) 1987-08-28 1988-08-25 Vorrichtung zum Erteilen eines Falschdralles an mindestens einem Garn in Fortbewegung

Country Status (5)

Country Link
US (1) US4910953A (de)
EP (1) EP0305305B1 (de)
JP (1) JPS6468532A (de)
DE (1) DE3862830D1 (de)
FR (1) FR2619831B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650307B1 (fr) * 1989-07-27 1991-10-04 Devtex Machine de transformation de fil avec un organe dispose entre deux delivreurs et permettant l'introduction automatique du fil lors de la relance
JPH0796730B2 (ja) * 1992-08-31 1995-10-18 村田機械株式会社 仮撚装置
US20100024376A1 (en) * 2008-08-04 2010-02-04 The Hong Kong Polytechnic University Method and apparatus for manufacturing slalom false twisting on ring yarn
JP6914664B2 (ja) * 2017-02-08 2021-08-04 Ｔｍｔマシナリー株式会社 仮撚加工機
CN107572314A (zh) * 2017-09-30 2018-01-12 宁波源生针织有限公司 可调节张力的导纱器

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051587A (de) * 1900-01-01
FR756324A (fr) * 1933-05-31 1933-12-07 Barmag Barmer Maschf Commande pour centrifugeuses de filage dans les fileuses de soie artificielle
US2262589A (en) * 1939-06-07 1941-11-11 Frank M Peck Textile manufacture
FR1076599A (fr) * 1952-05-23 1954-10-27 Procédé et appareil pour faire des fils et des fibres frisées
US2908133A (en) * 1956-08-09 1959-10-13 Clemson Agricultural College O False twister
FR1191361A (fr) * 1957-01-07 1959-10-19 Hindley Brothers Ltd Perfectionnements à la fabrication de fils frisés
FR1255922A (fr) * 1957-11-04 1961-03-17 Scragg & Sons Dispositif pour le retordage de fil
JPS5227851A (en) * 1975-08-27 1977-03-02 Toshiba Machine Co Ltd Falseetwisting method
JPS5922125Y2 (ja) * 1976-12-14 1984-07-02 村田機械株式会社 仮撚装置におけるベルトのニツプ圧設定装置
US4144700A (en) * 1976-12-14 1979-03-20 Murata Kikai Kabushiki Kaisha False twisting apparatus
JPS5545849A (en) * 1978-09-27 1980-03-31 Oda Gosen Kogyo Kk False twisting method and apparatus
FR2457333A1 (fr) * 1979-05-22 1980-12-19 Asa Sa Dispositif permettant de communiquer une fausse torsion par friction a au moins un fil en mouvement
JPS5691021A (en) * 1979-12-19 1981-07-23 Teijin Ltd Friction false twisting method and apparatus
CH653381A5 (de) * 1980-06-14 1985-12-31 Barmag Barmer Maschf Friktionsfalschdraller.
US4400931A (en) * 1980-11-07 1983-08-30 Murata Kikai Kabushiki Kaisha Belt-type false twisting unit
JPS58174639A (ja) * 1982-04-06 1983-10-13 帝人株式会社 仮撚装置
US4566265A (en) * 1983-08-06 1986-01-28 Rieter-Scragg Limited Textile processing apparatus
JPS6215342A (ja) * 1985-07-04 1987-01-23 カネボウ株式会社 特殊糸の仮撚方法
US4698959A (en) * 1985-08-07 1987-10-13 Barmag Ag Apparatus for twisting multifilament yarn

Also Published As

Publication number Publication date
US4910953A (en) 1990-03-27
EP0305305A1 (de) 1989-03-01
FR2619831B1 (fr) 1989-11-24
JPS6468532A (en) 1989-03-14
FR2619831A1 (fr) 1989-03-03
DE3862830D1 (de) 1991-06-20

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