EP0101443B1 - Procede et dispositif de production d'un fil a partir d'un cable de fibres - Google Patents

Procede et dispositif de production d'un fil a partir d'un cable de fibres Download PDF

Info

Publication number
EP0101443B1
EP0101443B1 EP82902728A EP82902728A EP0101443B1 EP 0101443 B1 EP0101443 B1 EP 0101443B1 EP 82902728 A EP82902728 A EP 82902728A EP 82902728 A EP82902728 A EP 82902728A EP 0101443 B1 EP0101443 B1 EP 0101443B1
Authority
EP
European Patent Office
Prior art keywords
fibers
roller
tow
breaker
tearing
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
Application number
EP82902728A
Other languages
German (de)
English (en)
Other versions
EP0101443A1 (fr
Inventor
Fritjof Dr.-Ing. Maag
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19813137421 external-priority patent/DE3137421A1/de
Priority claimed from DE19823205902 external-priority patent/DE3205902A1/de
Application filed by Individual filed Critical Individual
Publication of EP0101443A1 publication Critical patent/EP0101443A1/fr
Application granted granted Critical
Publication of EP0101443B1 publication Critical patent/EP0101443B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
    • D01G1/06—Converting tows to slivers or yarns, e.g. in direct spinning
    • 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
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls

Definitions

  • the invention relates to a method for producing a spun yarn from a fiber cable, which is converted into spun fibers by tearing, dissolved in individual fibers and spun immediately afterwards in an open-end spinning method, and an apparatus for carrying out the method.
  • Japanese Patent Publication JP-A-48-25372 describes a method in which a fiber cable is torn between drafting rollers, then crimped, then fed to the opener of a rotor spinning machine and spun directly into the yarn.
  • Fiber cables in a drafting system consisting of several rollers or pairs of rollers are stretched to such an extent that the filaments are torn into staple fibers.
  • the device for this is relatively expensive. Only completely twist and swirl-free fiber cables with a thickness of 0.4 to 2 ktex can be processed.
  • DE-OS 1 937 173 describes a method and a device in which, in a continuous process, a fiber cable consisting of endless fibers is converted to spun fibers, these are broken down into individual fibers and fed to the inner fiber collecting surface of a spinning rotor, and when they are withdrawn from the spinning rotor is spun into yarn.
  • the fiber cable is converted to staple fibers by cutting or tearing in a drafting system. After cutting, the spun fiber bundles are broken up into individual fibers in an additional stretching process or also by a garnished opening roller.
  • Open-end spinning processes are characterized by high productivity. They are therefore particularly suitable for use in direct spinning processes.
  • the fiber sliver is broken up to an individual fiber by an opening device and this is fed to the actual spinning device for the purpose of twisting.
  • the dissolution down to the individual fiber can take place by means of suitably garnished rollers which comb the fibers from the feeding device individually.
  • the fibers are transported to the spinning device in an air stream.
  • this method can also be used to process fiber cables without having to convert them to staple fibers before the spinning device. It is advisable to replace the opening device with a tearing device.
  • the individual filaments of the fiber cable are stretched to breakage as a result of the combing action of the opening or tearing roller and are thereby torn. The prerequisite for this is that the tearing roller can build up sufficiently high frictional forces on the filaments and the filaments are clamped in the feed device in such a way that they cannot slip through.
  • the feed device according to FIG. 3 is designed as a roller trio.
  • a secure clamping in the feed device is also obtained if a sufficiently high pretension is built up in the fiber cable and the clamping point itself is relieved.
  • This preload can be set by a delivery plant with a correspondingly lower peripheral speed. However, it can also be sufficient to wrap the cable over fixed or braked rotating cylinders.
  • the stack length of the torn fibers depends on the distance between the point on the tearing roller, at which friction forces are built up in the filament so high that its tensile force is exceeded, and the clamping point, or a point before the clamping point, at which the tensile force in the filament is noticeably reduced by friction.
  • the average stack length is thus due to the geometrical arrangement of the feeding device and the drawing roller, through the formation of an event.
  • To influence the guiding device between the clamping point and the tearing roller by the garnishing of the tearing roller and by the friction properties of the filaments.
  • the peripheral speed of the tearing roller influences the friction considerably and therefore also affects the average stack length.
  • the distance between the feed device and the tearing roller cannot be arbitrarily large, since it is precisely in this area that the filaments or the torn fibers have to be adequately guided. It is therefore advantageous to mount a guide element between the feed device and the tearing roller. However, too much friction should not be built up too early on this, since otherwise the stack length will be reduced.
  • a plate that is only slightly curved towards the tearing roller is therefore particularly suitable as a guide element.
  • a fiber comb attached to the end of the plate gently introduces the fiber cable into the tearing roller. In the direction of the feeding device, this curvature can become stronger in order to relieve it. The fiber cable should be inserted from the guide plate into the tearing roller without any significant change in direction.
  • the guide plate To reduce the friction between the fiber cable and the guide plate, and also between the individual filaments, it can be expedient to set the guide plate into high-frequency vibration by means of a vibrator.
  • a tearing device in which the opening roller also takes over the function of the tearing roller will usually achieve a satisfactory stack length, although the peripheral speed of this opening roller is already relatively high because of its other tasks for tearing. With cables with sensitive fibers it may be necessary to separate the function of the opening roller and the tearing. It is then possible to reduce the peripheral speed of the tearing roller and thus to reduce the proportion of short fibers.
  • fiber cables made from different raw materials can also be fed into the feed device at the same time and torn together.
  • the components mix very well during the subsequent yarn formation.
  • fiber cables and fiber tapes can in principle also be processed together.
  • different feeding devices adapted to the template These can be attached at different angles with respect to the tearing roller.
  • the fiber cables used for the process can e.g. be made from the raw materials polyacrylonitrile, polyamide, polyester or regenerated cellulose. In principle, however, cables or tapes made of very long-stacked natural fibers, which would otherwise not be processed without tearing on OE machines, are also suitable.
  • Normal spinning cables can also be presented. However, these are expediently additionally stretched before they enter the feed device.
  • Fibers with a thickness of less than two dtex can be torn particularly well using this method.
  • the tensile strength of the single fiber is lower with the finer titer.
  • the relative fiber surface and therefore also the friction between the fiber and the opening or tearing roller increases. It is better to clamp a cable with a finer single titer. That is why tearing is easier than with coarser fibers.
  • OE spinning devices can also be used to produce yarns from fiber cables with the fine filament titer claimed, which are only slightly changed compared to the conventional design. Due to the higher adhesion of the finer fibers in the clothing of the tearing roller and also due to the lower fiber mass, a higher speed of the tearing roller is recommended.
  • a fiber cable (1) is withdrawn from the can (2) and fed to the tearing roller (4) via a feed device (3). There the filaments of the cable are torn and broken up into individual fibers.
  • the torn and dissolved fibers are transported to the rotor (6) by an air stream and deposited there in the rotor groove. The yarn is drawn out of the rotor groove through the nozzle (7) and thereby receives its rotation. The finished yarn is wound onto the bobbin (8).
  • the fiber cable (1) is fed via the feed device (3) to the tearing roller (4). There the filaments of the cable are torn and dissolved into the single fiber. Due to centrifugal forces and air flow, they enter the gusset between the friction rollers (9), where they are arranged and twisted into the yarn. The finished yarn is wound onto the bobbin (8).
  • the fiber cable (1) is fed via a feed roller trio (3a), the feed trough (3b) and the guide plate (3c) to the tear roller (4). From this the torn fibers are transported to the fiber guide channel (5).
  • the fiber cable (1) is fed to the tear roller (4) via a feed device (3) constructed in a similar manner to that in FIG.
  • the opening roller (4a) which has a substantially higher peripheral speed than the tearing roller, combs out the torn fibers from the tearing roller and transports them to the fiber guide channel (5).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (10)

1. Procédé pour la production d'un fil de fibres coupées à partir d'un câble de filaments continus selon lequel le câble est converti en fibres discontinues par rupture par étirage, les fibres sont séparées et, immédiatement après, filées par un procédé open-end. Le procédé est caractérisé par le fait que les filaments du câble ou des câbles (1) en mouvement sont freinés, puis cassés par la force de frottement qui se développe sur la circonférence du cylindre briseur couvert de fil métallique pour garniture de carde.
2. Procédé selon la revendication 1, caractérisé par le fait que la fibre coupée produite par la rupture des filaments du câble est enlevée du cylindre briseur (4), puis filée.
3. Procédé selon les revendications 1 et 2 caractérisé.par le fait qu'il est utilisé un câble de fibres synthétiques (1) qui, par exemple, présente une haute préorientation par suite d'un filage à vitesse élevée.
4. Procédé selon les revendications 1 et 2, caractérisé par le fait qu'il est utilisé un câble de fibres synthétiques (1) qui a subi une extension supplémentaire avant d'être introduit dans le cylindre briseur (4).
5. Procédé selon les revendications 1 à 4 caractérisé par l'emploi d'un câble de fibres synthétiques (1) dans lequel le titrage d'un filament simple est inférieur à 2 décitex, et préférablement à 1.
6. Dispositif pour mettre en oeuvre le procédé selon les revendications 1-5 caractérisé par le fait qu'un dispositif d'alimentation (3) est situé avant le cylindre briseur (4) avec garniture de carde, dans lequel le câble est retenu de façon à ne pas glisser pendant l'opération d'étirage-jusqu'à- rupture.
7. Dispositif pour mettre en oeuvre le prodédé selon la revendication 6 caractérisé par le fait qu'un cylindre ouvreur est situé après le cylindre briseur (4).
8. Dispositif selon les revendications 6 et 7, caractérisé par le fait que le dispositif d'alimentation même (3) est précédé d'une zone de tension pour le câble (1).
9. Dispositif selon les revendications 6 à 8, caractérisé par le fait qu'un dispositif de guidage (3c) pour le câble est placé entre le dispositif d'alimentation (3a) et le cylindre briseur (4).
10. Dispositif selon la revendication 9, caractérisé par le fait que le dispositif de guidage (3c) prend la forme d'une plaque légèrement en dôme qui, à l'extrêmité adjacente au cylindre- briseur, est effectivement tangentielle au côté du cylindre briseur de rotation antagoniste.
EP82902728A 1981-09-19 1982-09-15 Procede et dispositif de production d'un fil a partir d'un cable de fibres Expired EP0101443B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19813137421 DE3137421A1 (de) 1981-09-19 1981-09-19 Verfahren und vorrichtung zur herstellung von spinnfasergarnen aus oder mit faserkabeln
DE3137421 1981-09-19
DE19823205902 DE3205902A1 (de) 1982-02-19 1982-02-19 Verfahren zur herstellung von spinnfasergarnen aus oder mit faserkabeln
DE3205902 1982-02-19

Publications (2)

Publication Number Publication Date
EP0101443A1 EP0101443A1 (fr) 1984-02-29
EP0101443B1 true EP0101443B1 (fr) 1986-07-23

Family

ID=25796201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82902728A Expired EP0101443B1 (fr) 1981-09-19 1982-09-15 Procede et dispositif de production d'un fil a partir d'un cable de fibres

Country Status (3)

Country Link
EP (1) EP0101443B1 (fr)
DE (1) DE3272154D1 (fr)
WO (1) WO1983001076A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE674957C (de) * 1934-06-15 1939-04-26 I G Farbenindustrie Akt Ges Vorrichtung zur Herstellung eines wolleaehnlichen, verzugsfaehigen Faserbandes aus endlosen Kunstfasern
JPS4825372A (fr) * 1971-08-11 1973-04-02

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1280456A (en) * 1968-07-25 1972-07-05 Tmm Research Ltd Improvements relating to the spinning of textile yarns
US3530958A (en) * 1968-08-16 1970-09-29 Dover Corp Viscosity control means for fluid of hydraulic elevator systems
GB1326200A (en) * 1971-01-12 1973-08-22 Tmm Research Ltd Methods of and apparatus for the open-end spinning of fibrous material
US3945188A (en) * 1973-04-19 1976-03-23 Pierre Muller Method of spinning synthetic textile fibers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE674957C (de) * 1934-06-15 1939-04-26 I G Farbenindustrie Akt Ges Vorrichtung zur Herstellung eines wolleaehnlichen, verzugsfaehigen Faserbandes aus endlosen Kunstfasern
JPS4825372A (fr) * 1971-08-11 1973-04-02

Also Published As

Publication number Publication date
EP0101443A1 (fr) 1984-02-29
DE3272154D1 (en) 1986-08-28
WO1983001076A1 (fr) 1983-03-31

Similar Documents

Publication Publication Date Title
DE2513692A1 (de) Offen-end-spinnrotorverfahren zum verspinnen von stapelfasern und vorrichtung zum durchfuehren dieses verfahrens
EP0057015B1 (fr) Procédé et dispositif pour la fabrication d'un fil d'effet
DE2447715B2 (de) Vorgarn und verfahren zu dessen herstellung
DE1937173A1 (de) Verfahren und Vorrichtung zum openend-Spinnen von Textilgarnen
CH628095A5 (de) Verfahren zum direkten spinnen eines garnes aus einem faserband, und vorrichtung zur durchfuehrung des verfahrens.
DE2256247A1 (de) Verfahren und vorrichtung zur herstellung von verbund-gespinst
EP0165398B1 (fr) Procédé et dispositif pour réaliser un fil par filature à friction
DE3148940A1 (de) Verfahren zum herstellen eines umwindegarnes, das umwindegarn und eine vorrichtung zum durchfuehren des verfahrens
DE3924208C2 (fr)
DE2513121A1 (de) Garn und verfahren zu seiner herstellung
DE19526048A1 (de) Spinnmaschine
EP2980284B1 (fr) Procede de fabrication d'un fil produit par jet d'air
EP0218974B1 (fr) Procédé et dispositif pour la production de fil d'effet sur des métiers à filer à bout libre
EP0101443B1 (fr) Procede et dispositif de production d'un fil a partir d'un cable de fibres
DE2733454A1 (de) Verfahren zur herstellung eines kernmantelgarns
EP1205587A2 (fr) Procédé et dispositif pour filer un fil en filaments déchirables
EP1056893B1 (fr) Procede et dispositif pour la preparation d'un melange fibreux en vue du tri de fibres
EP1522613A1 (fr) Dispositif pour produire des filés de fibres synthétiques
EP1295974A2 (fr) Métier à filer à jet d'air avec un dispositif défibreur
DE2407565A1 (de) Verfahren zur herstellung eines spinnfasergarnes
DE3137421A1 (de) Verfahren und vorrichtung zur herstellung von spinnfasergarnen aus oder mit faserkabeln
DE2537680C3 (de) Verfahren zur Herstellung eines Vorgarns
EP0622480A1 (fr) Procédé de dosage des quantités préalablement déterminées de flocons de fibres de qualité et/ou de couleur différente
DE3424632A1 (de) Textilprodukt von typ stapelfasergarn, verfahren und vorrichtung zu seiner herstellung
WO1986002953A1 (fr) Procede et dispositif de filature a fibres liberees

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19831019

AK Designated contracting states

Designated state(s): CH DE FR GB LI

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19860723

REF Corresponds to:

Ref document number: 3272154

Country of ref document: DE

Date of ref document: 19860828

EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

GBPC Gb: european patent ceased through non-payment of renewal fee
26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19880930

Ref country code: CH

Effective date: 19880930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881122

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19890601