EP0208114B1 - Procédé et dispositif pour la filature par friction par fibres libérées - Google Patents

Procédé et dispositif pour la filature par friction par fibres libérées Download PDF

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Publication number
EP0208114B1
EP0208114B1 EP86107209A EP86107209A EP0208114B1 EP 0208114 B1 EP0208114 B1 EP 0208114B1 EP 86107209 A EP86107209 A EP 86107209A EP 86107209 A EP86107209 A EP 86107209A EP 0208114 B1 EP0208114 B1 EP 0208114B1
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EP
European Patent Office
Prior art keywords
nip
spinning
feed
friction
friction roller
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
EP86107209A
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German (de)
English (en)
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EP0208114A3 (en
EP0208114A2 (fr
Inventor
Werner Dipl.-Ing. Billner
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.)
Rieter Ingolstadt Spinnereimaschinenbau AG
Original Assignee
Schubert und Salzer Maschinenfabrik AG
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Publication date
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Publication of EP0208114A2 publication Critical patent/EP0208114A2/fr
Publication of EP0208114A3 publication Critical patent/EP0208114A3/de
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Publication of EP0208114B1 publication Critical patent/EP0208114B1/fr
Expired legal-status Critical Current

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    • 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
    • D01H4/04—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 imparting twist by contact of fibres with a running surface
    • D01H4/16—Friction spinning, i.e. the running surface being provided by a pair of closely spaced friction drums, e.g. at least one suction drum

Definitions

  • the invention relates to a method for open-end friction spinning, in which fibers are twisted together in a spinning gusset formed by two friction rollers arranged closely next to one another and driven in the same direction to form a yarn which is pulled out of the spinning gusset in the direction of the axis of rotation of the friction rollers, and a device for carrying them out of the procedure.
  • fiber material is broken down into individual fibers, which are introduced into the spinning gusset formed by two friction rollers and twisted into a yarn by the rotation of the friction rollers, which are arranged closely next to one another and driven in the same direction.
  • the yarn is drawn off in the direction of the spinning gusset by means of a pair of take-off rollers.
  • the object of the present invention is to improve the feeding of the fibers into the spinning gusset and thus also the yarn quality.
  • the object is achieved in that the fibers are fed to the gusset facing away from the spinning gusset formed by the friction rollers and are then transported out of this feed gusset between the two friction rollers from the rear into the spinning gusset.
  • the method according to the invention improves the incorporation of the fibers into the end of the yarn, which essentially determines the yarn quality.
  • the fibers are stretched during their transport through the gap between the friction rollers by the opposite movement of the friction rollers at this point and are kept taut during their integration by clamping the trailing, free fiber end between the friction rollers. The uncontrolled feeding of fibers on the thread forming is avoided.
  • the fibers are fed directly into the feed gusset or also onto the outer surface of the friction roller rotating from the feed gusset into the spinning gusset.
  • a safe transport of the fibers from the feed gusset into the spinning gusset is ensured in that one of the friction rollers exerts a greater driving force on the fibers than through the other friction roller.
  • the entrainment of the fibers is further favored in that the fibers are already exposed to a suction air stream in the feed gusset.
  • the incorporation of the fibers is further improved if the fibers are fed from the feed gusset into the spinning gusset in a direction inclined to the direction in which the yarn is drawn off.
  • a compression of the fibers when feeding onto the outer surface of the friction roller is avoided in that the fibers are fed tangentially onto the outer surface.
  • the device according to the invention for carrying out the method is characterized in that the gusset facing away from the gusset serves as a gusset and that the friction roller rotating from the gusset into the gusset is transport roller for the fiber material fed to the gusset.
  • the mouth of the fiber feed channel protrudes into the gusset.
  • the fiber feed channel is preferably arranged inclined with respect to the yarn withdrawal direction, so that the fibers come into contact at an angle with the yarn end in the spinning gusset.
  • the mouth of the fiber feed channel is directed towards the outer surface of the friction roller rotating from the feed gusset into the spinning gusset.
  • a tangential feeding of the fibers onto the outer surface is achieved in that the fiber feed channel has a side wall extending in the direction of the gusset and the side of the fiber feed channel opposite this side wall is formed by the adjacent friction roller.
  • the fiber feed channel is preferably arranged inclined with respect to the surface line of the friction roller, as a result of which the fibers are aligned at a predetermined angle.
  • a greater fiber entraining force of the friction roller rotating from the feed gusset into the spinning gusset is achieved in that the outer surface of this roller has a greater roughness than the outer surface of the friction roller rotating from the spinning gusset into the feed gusset.
  • the outer surface of the two friction rollers is designed in such a way that in the fiber feed zone the outer surface of the friction roller rotating from the feed gusset into the spinning gusset and in the swirl zone the outer surface of the friction roller rotating from the spinning gusset in the feed gusset has a greater roughness than the outer surface of the other Friction roller.
  • the fiber entraining force is further increased in that the friction roller rotating from the feed gusset into the spinning gusset is designed as a suction roller and the center of the suction slot in the fiber feed zone lies in the circumferential direction away from the axis connecting plane of the friction rollers on the side of the feed gusset.
  • the center of the suction slot is located on the side of the spinning gusset.
  • the jacket of the friction roller rotating from the spinning gusset into the feed gusset is perforated in the swirl zone and is provided with a suction insert with a suction slit, the length of which essentially corresponds to the length of the swirl zone corresponds and whose center lies in the circumferential direction from the axis connection plane on the side of the spinning gusset.
  • a stronger frictional contact between the yarn and the friction rollers results from the fact that the distance of the friction rollers from one another is reduced in the yarn withdrawal direction.
  • Two friction rollers 1 and 2 are arranged closely next to one another and are driven in the same direction in the direction of the arrows P, for example by means of a tangential belt (not shown) (FIG. 1).
  • the friction rollers 1 and 2 form two gussets 20 and 21 which face away from one another and which are connected to one another in the region of greatest proximity of the two friction rollers 1 and 2 by a narrow gap 11.
  • fiber material dissolved in individual fibers is twisted into a yarn G. This gusset is therefore referred to as spinning gusset 20 below.
  • the yarn is withdrawn from the spinning gusset 20 in the direction P 1 (FIG. 4).
  • the dissolved fibers are fed to the gusset 21 facing away from the spinning gusset 20, which is therefore referred to below as the feed gusset 21.
  • the friction roller rotating from the spinning gusset 20 into the feed gusset 21 has a closed jacket
  • the friction roller 1 rotating from the feed gusset 21 into the spinning gusset 20 is designed as a suction roller. Accordingly, it has a jacket provided with perforations 10, into which a suction insert 3 with a suction slot 31 connected to a vacuum source (not shown) is inserted.
  • the suction slot 31, which extends in the longitudinal direction of the spinning gusset 20 over a fiber feed zone 1 and a swirl zone 11 adjoining it (FIG. 2), is arranged eccentrically to the axis connection plane A of the two friction rollers 1 and 2, so that the center of the suction slot 31 is open the side of the gusset 21 lies.
  • the length of the fiber feed zone I is determined by the length of a fiber feed channel 4, which is arranged on the side of the friction rollers 1 and 2 facing away from the spinning gusset and whose mouth projects into the feed gusset 21.
  • the fiber feed channel 4 is preferably arranged inclined with respect to the yarn withdrawal direction. However, it can also be arranged perpendicular to the yarn withdrawal direction.
  • the fiber feed channel 4 is assigned a dissolving roller 5, which is only shown in the exemplary embodiment in FIG. 6 and is fed with fiber material for dissolving in individual fibers by means of a feed trough 51 and a feed roller 52.
  • the friction roller 1 rotating from the feed gusset 21 into the spinning gusset 20 has a greater fiber entraining force than the friction roller 2, which is preferably produced by giving the surface of the friction roller 1 a greater roughness than the friction roller 2, expediently by means of a diamond coating.
  • other measures for example those with exclusively pneumatic means, for generating greater driving force are not excluded.
  • the fiber entraining force of the friction roller 1 is further increased by the suction effect on the friction roller 1 that is concentrated on the area of the gusset 21.
  • This arrangement of the suction slot 31 also generates a sufficiently large transport air flow in the direction of the feed gusset 21 in the fiber feed channel 4, which feeds the fiber material dissolved in individual fibers into the feed gusset 21.
  • the fibers are taken along by the friction roller 1 and fed through the narrow gap 11 into the spinning gusset 20, in which they come into contact with the free yarn end at an angle due to the arrangement of the fiber feed channel 4 which is inclined with respect to the yarn withdrawal direction.
  • the fibers When passing the nip 11, the fibers are oriented and stretched by the movement of the friction rollers 1 and 2 in the nip area. The fibers come with their leading end to the rotating free yarn end, while the other fiber end is still clamped between the friction rollers 1 and 2 will. This keeps the fibers taut during the binding process so that a good connection is achieved.
  • the friction roller 1 rotating from the feed gusset 21 into the spinning gusset 20 also has a rougher outer surface in the twist zone 11 than the friction roller 2, there is a risk that the yarn will at least partially lose contact with the friction rollers 1 and 2 and thereby an insufficient rotation receives.
  • this can be prevented, for example, by perforating the jacket of the friction roller 2 in the region of the swirl zone 11 and providing it with a suction insert 30 connected to a suction device (FIG. 4).
  • the suction slot 32 of the suction insert 30, the length of which essentially corresponds to the length of the swirl zone 11, is arranged such that, seen in the circumferential direction, the slot center lies on the side of the spider gusset 20 away from the axis connection plane A (FIG. 5).
  • the yarn is kept in frictional contact with the friction rollers 1 and 2 by the suction air flow, which must be stronger than the fiber entraining force of the friction roller 1.
  • the yarn in the twist zone 11 is held in the spider gusset 20 in that the outer surface of the friction roller 2 also remains closed in the twist zone 11 and is made rougher than the outer surface of the friction roller 1, so that the fiber entraining force in this zone the friction roller 2 is larger than that of the friction roller 1.
  • the suction insert 3 inserted into the jacket of the friction roller 1 can have a suction slot 31 'in the configuration shown in FIG. Seen in the circumferential direction, the center of the suction slot 31 'is located on the side of the feed gusset 21, as shown in FIG. 2, from the axis connection plane A, but in the twist zone 11 it is on the side of the spinning gusset 20. The yarn is thereby made even stronger radial held in the spinning reel 20.
  • the friction rollers 1 and 2 are slightly removed from their axially parallel position in such a way that their distance from one another in the yarn withdrawal direction P is reduced (FIG. 4).
  • the fiber feed channel 4 can also be arranged on the side of the friction rollers 1 and 2 facing away from the spinning gusset 20 in such a way that its mouth is directed onto the lateral surface of the friction roller 1 rotating from the feed gusset 21 into the spinning gusset 20.
  • the fiber feed channel 4 is arranged inclined with respect to the surface line M of the friction roller 1 and in such a way that its center line S to the surface line M includes an angle a at which the fibers are fed (Fig. 6).
  • the rows of perforations 10 are also inclined at this angle a, with respect to the surface line M (FIG. 4).
  • An angle of 40 ° to 60 ° has proven to be favorable for the spinning result.
  • the fiber feed channel 4 is also formed such that its one side wall 41 projects into the feed gusset 21, it being expediently adapted to the curvature of the friction roller 1 and extending in the vicinity of the gap 11.
  • the side wall 42 opposite the side wall 41 ends at the line of contact 6 with the friction roller 1, so that from this line the side of the fiber feed channel 4 opposite the side wall 41 is open and the lateral surface of the friction roller 1 replaces the side wall 42.
  • the center of the suction slot 31 is located in the circumferential direction away from the axis connection plane on the side of the feed gusset 21, but the suction slot 31 extends to the line of contact 6 of the side wall 42 of the fiber feed channel 4 with the friction roller 1 (FIG. 7).
  • the suction slot 31 can be designed as in FIG. 2 or 3.
  • the fibers separated by the opening roller 5 are fed tangentially, without fiber compression and in a position inclined to the surface line M of the friction roller, and in this position by the friction roller 1 due to its relative to the friction roller 2 Larger fiber entraining force is fed through the gap 11 into the spinning gusset 20.
  • the fibers are stretched and kept taut by clamping the trailing fiber end in the gap 11 during the binding to the yarn end in the spinning gusset 20.
  • both friction rollers 1 and 2 are perforated and provided with suction inserts 3 and 7, the suction slits 31 and 71 of which extend along the fiber feed zone and the swirl zone.
  • suction slots 31 and 71 therefore extend in the circumferential direction from the axis connection plane A in the direction of the spinning gusset 20.
  • the fibers fed by means of the fiber feed channel 4 directly into the feed gusset 21 are conveyed by the friction roller 1 through the gap 11, whereby they are stretched and during the binding be held taut at the end of the yarn. If necessary, however, the fibers can also be fed onto the outer surface of the friction roller 1 with a corresponding widening of the suction slot 31 beyond the axis connection plane A.
  • FIGS. 9 to 11 show a preferred embodiment of the spinning device, which initially differs from the exemplary embodiment according to FIG. 1 in that the friction roller 2 with closed jacket rotates from the feed gusset 21 into the spinning gusset 20 and the transport of the fibers from the feed gusset 21 in the gusset 20 takes over.
  • the friction roller 1 designed as a suction roller rotates from the spinning gusset 20 into the feed gusset 21, into which the fiber material dissolved in individual fibers is fed directly through the fiber feed channel 4.
  • the fiber feed channel 4 is arranged inclined with respect to the yarn take-off direction (FIG. 11).
  • the friction roller 2 is given a greater fiber-entraining force than the friction roller 1 by a spiral-shaped corrugation 22 and additionally by a diamond coating.
  • the friction roller is also provided with a diamond coating.
  • a grain size is selected that is at least 2 ⁇ smaller than the grain size used for the coating of the friction roller 2.
  • a grain size of 6 for the friction roller 2 and 4 ⁇ for the friction roller 1 should not be exceeded. It has proven to be particularly favorable if the diamond coating of the friction roller 2 is carried out with a grain size of 4 and for the friction roller 1 with a grain size of 2 ⁇ .
  • the suction slot 31 present in the suction insert 3 of the friction roller 1 designed as a suction roller, which extends from the fiber feed zone into the swirl zone, is 8 mm wide in the circumferential direction.
  • the suction slot 31 extends 3 to 5 mm beyond the axis connection plane A in the direction of the spinning pin 20.
  • the yarn is kept in frictional contact with the friction rollers 1 and 2 by the suction air flow in the spinning pin 20 and secondly on the side of the feed pin 21
  • a sufficient transport air flow is generated for conveying the fibers into the feed gusset 21. Additional pneumatic means for conveying the fibers can therefore be omitted.
  • the spinning process takes place in the manner already described, but the yarn is drawn off the spinning gusset 20 against the feed direction P 2 of the fibers (FIG. 11). The fibers turn over after their leading free end is tied to the yarn end.
  • This change in the fibers which is favored by the spiral fluting 22 of the closed jacket of the friction roller 2, has an advantageous effect on the spinning result.
  • the spiral corrugation 22 also largely prevents fibers from sticking to the diamond-coated outer surface of the friction roller 2.

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

Claims (30)

1. Procédé de filage par friction dit «open-end» ou à extrémité du filé ouverte, dans lequel des fibres sont tordues ensemble dans un coin d'étranglement de filage, formé par deux rouleaux de friction disposés étroitement l'un à côté de l'autre et entraînés dans le même sens, pour donner un filé qui est extrait hors du coin d'étranglement de filage dans la direction de l'axe de rotation du rouleau de friction, caractérisé en ce que les fibres sont amenées au coin d'étranglement opposé au coin d'étranglement de filage formé par les rouleaux de friction, puis, depuis ce coin d'étranglement d'amenée, passent entre les deux rouleaux de friction et sont transportées, de l'arrière, dans le coin d'étranglement de filage.
2. Procédé selon la revendication 1, caractérisé en ce que les fibres sont amenées directement dans le coin d'étranglement d'amenée.
3. Procédé selon la revendication 1, caractérisé en ce que les fibres sont amenées sur la surface latérale du rouleau de friction qui tourne du coin d'étranglement d'amenée vers le coin d'étranglement de filage.
4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce qu'une force d'entraînement plus forte est exercée sur les fibres par l'un des rouleaux de firction que par l'autre rouleau de friction.
5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que les fibres sont déjà exposées à un flux d'air d'aspiration dans le coin d'étranglement d'amenée.
6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que les fibres sont amenées du coin d'étranglement d'amenée vers le coin d'étranglement de filage selon une direction inclinée par rapport à la direction d'extraction du filé.
7. Procédé selon la revendication 3, caractérisé en ce que les fibres sont amenées tangentiellement à la surface latérale du rouleau de friction.
8. Dispositif pour l'exécution du procédé selon l'une des revendications 1 à 7, comportant deux rouleaux de friction qui sont disposés étroitement l'un près de l'autre, sont entraînés dans le même sens et forment deux coins d'étranglement opposés l'un à l'autre, dont l'un est un coin d'étranglement de filage, et comportant aussi un canal d'amenée des fibres, caractérisé en ce que le coin d'étranglement opposé au coin d'étranglement de filage (20) sert de coin d'étranglement d'amenée (21); et en ce que le rouleau de friction (1) qui tourne du coin d'étranglement d'amenée (21) vers le coin d'étranglement de filage (20) sert de rouleau de transport pour le matériau en fibres amené au coin d'étranglement de filage (20).
9. Dispositif selon la revendication 8, caractérisé en ce que l'embouchure du canal (4) d'amenée des fibres pénètre dans le coin d'étranglement d'amenée (21
10. Dispositif selon la revendication 7, caractérisé en ce que le canal (4) d'amenée des fibres est disposé incliné par rapport à la direction d'extraction du filé.
11. Dispositif selon la revendication 8, caractérisé en ce que l'embouchure du canal (4) d'amenée de fibres est inclinée sur la surface latérale du rouleau de friction (1) qui tourne du coin d'étranglement d'amenée (21) vers le coin d'étranglement de filage (20).
12. Dispositif selon la revendication 11, caractérisé en ce que le canal (4) d'amenée des fibres présente une paroi latérale (41) qui s'étend en direction du coin d'étranglement d'amenée (21 et en ce que le côté, opposé à cette paroi latérale (41 du canal (4) d'amenée des fibres est formé par le rouleau de friction voisin (1).
13. Dispositif selon la revendication 11 ou 12, caractérisé en ce que le canal (4) d'amenée des fibres est disposé incliné par rapport à la génératrice (M) du rouleau de friction (1).
14. Dispositif selon l'une des revendications 8 à 13, caractérisé en ce que la surface latérale du rouleau de friction (1) qui tourne du coin d'étranglement d'amenée (21) vers le coin d'étranglement de filage (20) a une rugosité supérieure à celle de la surface latérale du rouleau de friction (2) qui tourne du coin d'étranglement de filage (20) vers le coin d'étranglement d'amenée (21).
15. Dispositif selon l'une des revendications 8 à 13, caractérisé en ce que dans la zone (1) d'amenée des fibres, c'est la surface latérale du rouleau de friction (1) qui tourne du coin d'étranglement d'amenée (21) vers le coin d'étranglement de filage (20) et, dans la zone de torsion (11), c'est la surface latérale du rouleau de friction (2), qui tourne du coin d'étranglement de filage (20) vers le coin d'étranglement d'amenée (21 qui présentent une plus grande rugosité que la surface latérale de, respectivement l'autre rouleau de friction.
16. Dispositif selon la revendication 14 ou 15, caractérisé en ce qu'une surface latérale plus rugueuse des rouleaux de friction est produite par un revêtement diamanté.
17. Dispositif selon l'une des revendications 8 à 16, caractérisé en ce que le rouleau de friction ( 1 ) qui tourne du coin d'étranglement d'amenée (21) vers le coin d'étranglement de filage (20) est conçu comme rouleau d'aspiration; et en ce que, dans la zone (1) d'amenée des fibres, le milieu de la fente (31, 31') d'aspiration se situe, dans la direction périphérique, à une certaine distance du plan (A) contenant les axes des rouleaux de friction (1, 2), du côté du coin d'étranglement d'amenée (21).
18. Dispositif selon la revendication 17, caractérisé en ce que dans la zone de torsion (II), le milieu de la fente (31') d'aspiration se situe du côté du coin d'étranglement de filage (20).
19. Dispositif selon la revendication 17 ou 18, caractérisé en ce que les rangées des perforations (10) prévues dans la surface latérale du rouleau de friction ( 1 ) qui tourne du coin d'étranglement d'amenée (21 ) vers le coin d'étranglement de filage (20) sont orientées selon la direction d'amenée des fibres.
20. Dispositif selon l'une des revendications 8 à 19, caractérisé en ce que la surface latérale du rouleau de friction (2) qui tourne du coin d'étranglement de filage (20) vers le coin d'étranglement d'amenée (21) est, dans la zone de torsion (II), perforée et munie d'une garniture (30) d'aspiration avec une fente (32) d'aspiration dont la longueur correspond sensiblement à la longueur de la zone de torsion (II) et dont le milieu se situe, dans la direction périphérique, à une certaine distance du plan (A) contenant les axes, du côté du coin d'étranglement de filage (20).
21. Dispositif selon l'une des revendications 8 à 16, caractérisé en ce que les deux rouleaux de friction (1, 2) sont conçus comme rouleaux d'aspiration et que seul le coin d'étranglement de filage (20) est soumis à une dépression.
22. Dispositif selon l'une des revendications 8 à 21, caractérisé en ce que la distance des deux rouleaux de friction (1, 2) l'un de l'autre va en diminuant dans le sens (P1) d'extraction du filé.
23. Dispositif selon l'une des revendications 8 à 22, caractérisé en ce que la fente (31, 71) d'aspiration d'au moins l'un des rouleaux de friction (1, 2) s'étend, dans la direction périphérique, du plan (A) contenant les axes, dans la direction du coin d'étranglement de filage (20).
24. Dispositif pour l'exécution du procédé selon l'une des revendications 1 à 7, comportant deux rouleaux de friction qui sont disposés étroitement l'un à côté de l'autre, sont entraînés dans le même sens et forment deux coins d'étranglement opposés l'un à l'autre dont l'un est le coin d'étranglement de filage, caractérisé en ce que le coin d'étranglement opposé au coin d'étranglement de filage (20) sert de coin d'étranglement d'amenée (21); et en ce que le rouleau de friction (2) qui tourne du coin d'étranglement d'amenée (21) vers le coin d'étranglement de filage (20) a une surface latérale fermée, dont la surface présente une plus grande rugosité que la surface latérale du rouleau de friction (1) qui tourne du coin d'étranglement de filage (20) vers le coin d'étranglement d'amenée (21) et qui est conçu comme rouleau d'aspiration.
25. Dispositif selon la revendication 24, caractérisé en ce que la surface latérale plus rugueuse du rouleau de friction (2) à surface latérale fermée est produite par un striage hélicoïdal et par un revêtement diamanté.
26. Dispositif selon les revendications 24 et 25, caractérisé en ce que le rouleau de friction (1) conçu comme rouleau d'aspiration est muni d'un revêtement diamanté dont la granulométrie est d'au moins 2 inférieure à la granulométrie du revêtement diamanté rapporté sur le rouleau de friction (2) à surface latérale fermée.
27. Dispositif selon la revendication 26, caractérisé en ce que la granulométrie, dans le cas du rouleau de friction (2) à surface latérale fermée, est au maximum 6 µ et, dans le cas du rouleau de friction (1) conçu comme rouleau d'aspiration, est au maximum 4 µ.
28. Dispositif selon l'une des revendications 24 à 27, caractérisé en ce que la fente (31 ) d'aspiration du rouleau de friction (1) conçu comme rouleau d'aspiration a, dans la direction périphérique, une largeur de 8 mm et s'étend de 3 à 5 mm au-delà du plan (A) qui contient les axes, en direction du coin d'étranglement de filage (20).
29. Dispositif selon l'une des revendications 24 à 28, caractérisé en ce que l'un des rouleaux de friction (1, 2) est conçu conique de façon telle que la distance des rouleaux de friction l'un de l'autre aille en diminuant dans le sens d'extraction du filé.
30. Dispositif selon l'une des revendications 24 à 29, caractérisé en ce que le sens d'extraction du filé est opposé au sens d'insertion des fibres dans le coin d'étranglement d'amenée.
EP86107209A 1985-07-12 1986-05-27 Procédé et dispositif pour la filature par friction par fibres libérées Expired EP0208114B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853524942 DE3524942A1 (de) 1985-07-12 1985-07-12 Verfahren und vorrichtung zum offenend-friktionsspinnen
DE3524942 1985-07-12

Publications (3)

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EP0208114A2 EP0208114A2 (fr) 1987-01-14
EP0208114A3 EP0208114A3 (en) 1987-10-28
EP0208114B1 true EP0208114B1 (fr) 1989-07-05

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EP86107209A Expired EP0208114B1 (fr) 1985-07-12 1986-05-27 Procédé et dispositif pour la filature par friction par fibres libérées

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Country Link
US (1) US4727716A (fr)
EP (1) EP0208114B1 (fr)
JP (1) JPS6215334A (fr)
CN (1) CN86104572A (fr)
BR (1) BR8603120A (fr)
DE (2) DE3524942A1 (fr)
IN (1) IN167803B (fr)

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Publication number Priority date Publication date Assignee Title
GB8702723D0 (en) * 1987-02-06 1987-03-11 Hollingsworth Uk Ltd Friction spinning
IT1231964B (it) * 1989-09-26 1992-01-16 Ausimont Srl Composizioni poliolefiniche dotate di elevata resistenza all'urto
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JPS6215334A (ja) 1987-01-23
DE3524942C2 (fr) 1988-12-15
CN86104572A (zh) 1987-01-07
BR8603120A (pt) 1987-02-17
US4727716A (en) 1988-03-01
JPH0236687B2 (fr) 1990-08-20
EP0208114A3 (en) 1987-10-28
IN167803B (fr) 1990-12-22
EP0208114A2 (fr) 1987-01-14
DE3524942A1 (de) 1987-01-22
DE3664220D1 (en) 1989-08-10

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