EP0165398B1 - Procédé et dispositif pour réaliser un fil par filature à friction - Google Patents

Procédé et dispositif pour réaliser un fil par filature à friction Download PDF

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Publication number
EP0165398B1
EP0165398B1 EP85104480A EP85104480A EP0165398B1 EP 0165398 B1 EP0165398 B1 EP 0165398B1 EP 85104480 A EP85104480 A EP 85104480A EP 85104480 A EP85104480 A EP 85104480A EP 0165398 B1 EP0165398 B1 EP 0165398B1
Authority
EP
European Patent Office
Prior art keywords
friction spinning
fibres
fibers
yarn
spinning means
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
EP85104480A
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German (de)
English (en)
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EP0165398A1 (fr
Inventor
Herbert Stalder
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.)
Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication date
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Priority to AT85104480T priority Critical patent/ATE32109T1/de
Publication of EP0165398A1 publication Critical patent/EP0165398A1/fr
Application granted granted Critical
Publication of EP0165398B1 publication Critical patent/EP0165398B1/fr
Expired 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
    • D01H1/11—Spinning by false-twisting

Definitions

  • the invention relates to a method and a device for producing a yarn or the like, by means of friction spinning means, as described in the preamble of the first method and in the preamble of the first device claim.
  • Friction spinning is a spinning process in which fibers are released from a fiber structure, released onto a perforated, moving surface and twisted together on it.
  • the perforated surface is interspersed with a suction air flow in a predetermined area, so that the fibers discharged onto the surface in this area are captured by the air flow, brought to the surface and transported there up to the end of this area, viewed in the direction of movement of the surface and then screwed in.
  • the screwing in takes place by the flow portion which is directed in this end region of the flow, the direction of movement of the surface, which thereby detects the fibers lying on the surface and continuously screwing them in.
  • a method and a device are known from German Offenlegungsschrift 1 902 111, by means of which a yarn mentioned at the outset is produced.
  • fibers are released from a toothed roller from a fiber structure and transferred to an air stream surrounding this roller, within which the fibers rotate from a position in the circumferential direction to a position essentially parallel to the axis of rotation of the roller.
  • these fibers After these fibers have reached the said position parallel to the axis of rotation, they are transferred to a suction drum, on the surface of which they in turn are conveyed in a position essentially parallel to the axis of rotation of this suction drum up to the previously mentioned limit region of such a suction air flow and, as described earlier, together rotated and drawn off as a finished yarn by appropriate means.
  • the twisting of the fibers into the yarn is supported by another roller lying parallel to the suction drum and almost touching the suction drum. Accordingly, the directions of movement of the latter two rollers are opposite at the narrowest point, i. H. the directions of rotation of the two rollers are the same.
  • a major disadvantage of this method is that the fibers should undergo a change in direction by means of the air flow on the circumference of the toothed roller, which happens only with insufficient uniformity. This gives the fibers on the subsequent suction drum an uneven position and thus an uneven density, which leads to undesirable unevenness in the yarn, especially when fibers with relatively short staple lengths are processed, as is done, for example, in the area of cotton spinning.
  • This device consists in the fact that the fibers have to be braked practically to zero when they hit the gusset gap due to the high transport speed in the air flow, which can lead to compression of these fibers and thus to an undrawn position of the fibers in the yarn.
  • FIG. 1 and 2 show a drafting system 1, with a pair of input rollers 2, a middle pair of rollers 3 and an output pair of rollers 4.
  • the middle pair of rollers is provided with a pair of straps 5 in a manner known per se.
  • the drafting system processes a fiber band 6 or the like and delivers a correspondingly stretched fiber structure 7 to a first friction spinning drum 8.
  • This first friction spinning drum 8 is perforated (not shown) and contains a suction channel 9 which, by means of its walls 9.1 and 9.2, delimits a suction zone on the circumference of the friction spinning drum 8.
  • the walls 9.1 and 9.2 reach the cylindrical inner wall of the friction spinning drum 8.
  • the fibers of the fiber structure 7 are held within the suction zone on the corresponding surface part of the rotating friction spinning drum and ultimately twisted in the limit region of the suction zone given by the wall 9.2 of the suction channel 9 to form a yarn 10.
  • the friction spinning drum 8 rotates in a direction indicated by the arrow U.
  • the first friction spinning drum 8 is assigned a second friction spinning drum 11, which is arranged so close to the first friction spinning drum 8 that the yarn formed in the intermeshing gap of both friction spinning drums is turned into a firmer yarn than without this second drum 11.
  • the direction of movement R of the second friction spinning drum 11 is opposite to the narrowest point of the direction of movement U of the first friction spinning drum 8.
  • a pair of draw-off rollers 12 is provided in a manner known per se in addition to the friction spinning drum, as seen in the axial direction of the friction spinning drum.
  • the yarn 10 is then wound up (not shown).
  • an additional pressure roller 13 (indicated in FIG. 1 and with dash-dotted lines) can be provided.
  • This roller 13 can either be driven at the same peripheral speed as the first friction spinning drum 8 or can be provided as a so-called towed roller.
  • Fig. 2 it is indicated by dash-dotted lines that the pair of draw rollers 12 can also be arranged at the opposite end of the friction spinning drums, i. H. that in such a case the yarn 10 formed is drawn off in the corresponding opposite direction.
  • the sliver 6 is delivered from a spinning can (not shown) and drawn in the drafting device 1 to form a parallelized fiber structure 7.
  • peripheral speed of the friction spinning drums 8 and 11 is a multiple, e.g. B. corresponds to two to twenty times the speed of the fiber structure 7, there is a strong distortion between the pair of output rollers 4 and the first friction spinning drum 8, which on the one hand causes additional stretching of the fibers and on the other hand a strong thinning of the fiber accumulations on this friction spinning drum 8.
  • drawing off the twisted yarn 10 by means of the draw-off rollers 12 in the yarn creates a stretch compressing the yarn, the tension required for the stretching being generated by the friction between the yarn and the friction spinning drums.
  • the friction between the first friction spinning drum 8 and the fibers captured by this drum is increased, so that the slippage between these fibers and the moving friction spinning drum surface is reduced and the removal of the fibers from the fiber assembly 7 is improved.
  • the reduced drafting system is designated 1.1.
  • the pressure roller 13 is permanently assigned.
  • the other elements correspond to those of FIGS. 1 and 2 and are provided with the same reference numerals accordingly.
  • the further device according to the invention shown with FIG. 5 has a disintegration unit 100, which the fibers onto the friction spinning drum 8 or. 11 feeds.
  • the opening unit 100 comprises a feed trough 101, a feed roller 102 and a opening roller 103.
  • the feeding roller 102 and the opening roller 103 are rotatably mounted in a housing 104 and can be driven.
  • the feed roller 102 is provided with longitudinal corrugations (not shown).
  • the opening roller 103 To dissolve the sliver 105 by the opening roller 103, the latter is provided with needles 106 or teeth (not shown) in a manner known per se.
  • FIG. 6 shows a schematic and partial view of a plan
  • FIG. 7 shows a schematic side view of the device from FIG. 5.
  • the housing 1-04 and the feed roller 102 are omitted for the sake of clarity .
  • FIG. 7 further shows a suction channel 107 located in the first friction spinning drum 8 with the side walls 108 and 109 which extend to the inner cylindrical wall of the first friction spinning drum. As described earlier, the walls 108 and 109 delimit the suction zone of the first friction spinning drum 8.
  • the feed roller 102 pushes the sliver 105 against the needles 106 of the opening roller 103, so that the opening roller 103 rotating at high speed releases fibers from the sliver 7 by means of the needles 106 and conveys them onto the first friction spinning drum 8.
  • This width D differs depending on the ratio of the feeding speed of the sliver 105 and the peripheral speed of the opening roller 103.
  • the fibers of the fiber stream 110 pass on the first friction spinning drum 8 into the gusset gap between the two friction spinning drums 8 and 8 respectively. 11, in which the yarn 10 is formed in a known manner.
  • the yarn 10 is drawn off by the pair of draw rollers.
  • the second friction spinning drum 11 can be a deeper one. occupy a higher position than the first friction spinning drum 8.
  • the suction channel 107 must also be shifted so that the wall 109 changes the position 109A or. the layer 109B and the wall 108 the layer 108A, respectively. occupies position 108B.
  • the suction channel 107 can be replaced each time the position of the second friction spinning drum 11 changes, so that the position of the wall 108A remains for all three variants.
  • the pair of draw-off rollers can also be arranged as a variant on the opposite end of the friction spinning drums, as a result of which the finished yarn 10 is drawn off in the corresponding opposite direction.
  • the fibers released by the opening roller 103 undergo further deflection when they are taken over by the friction spinning rollers, which is conducive to the stretching of the fibers.
  • FIG. 8 shows a variant of the device of FIG. 5, in that in this device the axis of rotation of the opening roller 103 lies essentially parallel to the axes of rotation of the friction spinning drum 8 and 11.
  • the stretching of the fibers during the transfer from the opening roller 103 to the first friction spinning drum 8 also takes place in the variants with a opening roller 103 due to the higher peripheral speed of the friction spinning drum 8 compared to the fiber speed in Area of the transfer point. All that is required is a slightly higher peripheral speed of the friction spinning drum in order to obtain sufficient stretching of the fibers. It can be seen from the position of the second friction spinning drum 11 shown with the broken line that the position of the gusset gap in which the yarn 10 is produced can also be adapted to the length of the fibers to be processed with this variant. The suction channel 117 must also be adapted accordingly.
  • FIG. 9 shows a friction spinning disc 120 instead of a first friction spinning drum 8 and a friction spinning cone 121 instead of a second friction spinning drum 11. Both elements can be driven (not shown) and each rotate about an axis 122 (indicated by a cross) ) resp. 123 (indicated by a dash-dotted line).
  • the friction spinning disc 120 is perforated and in the region 124 indicated by dash-dotted lines through which there is an air flow through a suction channel (not shown) located below the disc.
  • this principle with the drafting system 1, respectively. 1.1 of FIGS. 1 and 2, respectively. 3 and 4 or combined with the resolving unit 100 of FIG. 5 such that the fiber is delivered to the friction spinning disc 120 in one of the directions M. 1 to M. 4 or in any direction in between.
  • the lowest peripheral speed of the disk 120 in the area 124 is greater than the fiber delivery speed, so that the fibers are stretched when they are taken over by the disk 120.

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

Claims (17)

1. Procédé pour la fabrication d'un fil ou similaire, à l'aide de moyens de filage par friction (8, 11), dans lequel les fibres sont extraites d'un ensemble de fibres, et sont délivrées aux moyens de filage par friction pour former un fil, et dans lequel le fil terminé (10) est extrait.à travers les moyens de filage par friction, dans une direction donnée, caractérisé par le fait que les fibres sont principalement conduites mécaniquement sur tout le trajet, allant depuis l'ensemble de fibres jusqu'à leur réception par les moyens de filage par friction (8, 11).
2. Procédé selon revendication 1, caractérisé par le fait que les fibres sont réceptionnées directement par les moyens de filage par friction depuis l'ensemble de fibres (7) d'une telle sorte que l'extrémité avant des fibres, vu dans le sens de déplacement des fibres, est déjà saisie par les moyens de filage par friction, alors que l'extrémité arrière des fibres n'a pas encore quitté l'ensemble de fibres.
3. Procédé selon revendication 1, caractérisé par le fait que, principalement dans les procédés de filage à bouts ouverts, les fibres sont détachées de l'ensemble de fibres (105) par des moyens de désagrégation (103), et sont ensuite réceptionnées par les moyens de filage par friction (8, 11), d'une manière directe telle que l'extrémité avant des fibres, vu dans le sens de déplacement des fibres, est déjà saisie par les moyens de filage par friction, alors que l'extrémité arrière des fibres n'a pas encore quitté le moyen de désagrégation (103).
4. Procédé selon l'une des revendications 1 à 3, caractérisé par le fait que les moyens de filage par friction (8, 11) possèdent une vitesse supérieure à la vitesse des fibres à réceptionner.
5. Procédé selon l'une des revendications 1 à 4, caractérisé par le fait que les fibres sont étirées lors de leur réception par les moyens de filage par friction (8, 11).
6. Procédé selon revendication 1, caractérisé par le fait que les fibres sont délivrées au moyen de filage par friction (8,11) dans une direction qui est perpendiculaire ou parallèle, ou une direction située entre celles-ci, par rapport au sens de mouvement du moyen de filage par friction.
7. Dispositif pour la fabrication d'un fil ou similaire
avec des moyens (1 ; 1.1 ; 103) pour délivrer des fibres depuis un ensemble de fibres, et
avec des moyens de filage par friction (8, 11) pour réceptionner les fibres et pour former un fil (10),
ainsi qu'avec des moyens (12) pour extraire le fil terminé, caractérisé par le fait que les moyens (1 ; 1.1 ; 103) pour délivrer les fibres sont disposés si près des moyens de filage par friction (8, 11) que les fibres, qui doivent être prises par les moyens de filage par friction, sont guidées mécaniquement par ceux-ci jusqu'à la prise des fibres.
8. Dispositif selon revendication 7, caractérisé par le fait que les moyens pour délivrer les fibres sont un train d'étirage (1, 1.1), respectivement un ensemble de fibres (7) quittant le train d'étirage.
9. Dispositif selon revendication 7, caractérisé par le fait que les moyens pour délivrer les fibres sont des rouleaux de désagrégation (103).
10. Dispositif selon revendication 7, caractérisé par le fait
que les moyens de filage par friction ont au moins une surface (8) qui se meut dans une direction donnée, et
que des moyens pour délimiter une zone d'aspiration sur cette surface sont prévus de telle manière que l'extrémité avant des fibres déjà libérée des moyens de livraison de fibres est saisie par le courant d'air aspirant et est donnée sur la surface perforée en mouvement.
11. Dispositif selon revendication 10, caractérisé par le fait qu'une deuxième surface est prévue, en mouvement en sens contraire de la surface citée, pour soutenir la torsion des fibres donnant un fil.
12. Dispositif selon revendication 10, caractérisé par le fait que la surface perforée en mouvement est la surface d'un disque (120).
13. Dispositif selon revendications 11 et 12, caractérisé par le fait que la deuxième surface en mouvement est la surface en rotation d'un tronc de cône (121).
14. Dispositif selon revendication 10, caractérisé par le fait que la surface perforée en mouvement est la surface en rotation d'un cylindre (8).
15. Dispositif selon revendications 11 et 12, caractérisé par le fait que la deuxième surface en mouvement est la surface en rotation d'un deuxième cylindre (11).
16. Dispositif selon revendications 7 et 10, caractérisé par le fait que les moyens pour délivrer les fibres sont disposés de telle manière que les fibres sont délivrées dans une direction par rapport au sens de mouvement des surfaces en mouvement qui est essentiellement parallèle, verticale ou faisant un angle intermédiaire.
17. Dispositif selon une ou plusieurs des revendications 10 à 15, caractérisé par le fait que les moyens de filage par friction (8), qui doivent maintenir les extrémités avant des fibres, sont prévus pour agir avec frottement, conjointement avec un corps en rotation (13).
EP85104480A 1984-05-18 1985-04-12 Procédé et dispositif pour réaliser un fil par filature à friction Expired EP0165398B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85104480T ATE32109T1 (de) 1984-05-18 1985-04-12 Verfahren und vorrichtung zur herstellung eines garnes mittels friktionsspinnmitteln.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2450/84 1984-05-18
CH245084 1984-05-18

Publications (2)

Publication Number Publication Date
EP0165398A1 EP0165398A1 (fr) 1985-12-27
EP0165398B1 true EP0165398B1 (fr) 1988-01-20

Family

ID=4234104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104480A Expired EP0165398B1 (fr) 1984-05-18 1985-04-12 Procédé et dispositif pour réaliser un fil par filature à friction

Country Status (7)

Country Link
US (2) US4660371A (fr)
EP (1) EP0165398B1 (fr)
JP (1) JPS60246824A (fr)
AT (1) ATE32109T1 (fr)
AU (1) AU573327B2 (fr)
DE (1) DE3561475D1 (fr)
IN (1) IN164144B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN164144B (fr) * 1984-05-18 1989-01-21 Rieter Ag Maschf
IN165403B (fr) * 1984-09-25 1989-10-07 Rieter Ag Maschf
IN165873B (fr) * 1984-10-15 1990-02-03 Rieter Ag Maschf
DE3441492A1 (de) * 1984-11-13 1986-05-22 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Offenend-spinnvorrichtung
IT1190001B (it) * 1986-02-26 1988-02-10 Savio Spa Elemento torsionatore rotante per filatura open-end ad attrito
AT391891B (de) * 1986-07-14 1990-12-10 Fehrer Ernst Vorrichtung zum herstellen eines garnes
IN170278B (fr) * 1986-11-13 1992-03-07 Rieter Ag Maschf
GB8702723D0 (en) * 1987-02-06 1987-03-11 Hollingsworth Uk Ltd Friction spinning
US4823545A (en) * 1987-08-31 1989-04-25 Maschinenfabrik Rieter Ag Method of and apparatus for false-twist spinning
DE3901791A1 (de) * 1988-02-15 1989-08-24 Fehrer Ernst Verfahren und vorrichtung zum zufuehren je einer verstreckten faserlunte zu wenigstens zwei ringspinnstellen
DE3841812A1 (de) * 1988-12-12 1990-07-12 Zinser Textilmaschinen Gmbh Transportelement mit huelsenzapfen zum aufnehmen und transportieren von auf huelsen angeordneten kopsen oder leerhuelsen
DE4013689A1 (de) * 1990-04-28 1991-10-31 Fritz Stahlecker Verfahren und vorrichtung zum verspinnen von stapelfasern zu einem garn
AT394004B (de) * 1990-06-25 1992-01-27 Austria Metall Stossverzehrkoerper, insbesondere fuer kraftfahrzeuge
AT397822B (de) * 1991-09-26 1994-07-25 Fehrer Ernst Vorrichtung zum herstellen eines garnes
DE4319203C2 (de) * 1993-06-09 2003-10-23 Schlafhorst & Co W OE-Friktionsspinnvorrichtung
DE19504607A1 (de) * 1995-02-11 1996-08-14 Schlafhorst & Co W Faserbandzuführvorrichtung für OE-Spinnmaschinen
WO2009059438A1 (fr) * 2007-11-06 2009-05-14 Rotorcraft Ag Métier à tricoter et procédé de fabrication de tricots à partir de mèches de préparation

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US3555802A (en) * 1969-12-08 1971-01-19 Daniel W Maxham Open end roving,spinning,and spinning and twisting machines
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ATA170978A (de) * 1977-03-30 1990-09-15 Schlafhorst & Co W Verfahren und vorrichtung zum spinnen eines fadens aus einzelfasern
FR2439832A1 (fr) * 1978-10-26 1980-05-23 Platt Saco Lowell Ltd Appareil et procede de filage par fibres liberees
GB2042599B (en) * 1978-10-26 1983-09-21 Platt Saco Lowell Ltd Open-end spinning apparatus
DE3047987C2 (de) * 1980-01-28 1986-01-23 Ernst Dr. Linz Fehrer Vorrichtung zum Herstellen eines Garnes
FR2480799A1 (fr) * 1980-04-17 1981-10-23 Alsacienne Constr Meca Procede et dispositif pour la filature de fibres textiles liberees
US4392343A (en) * 1980-10-08 1983-07-12 Alan Parker Friction spinning apparatus
AT367104B (de) * 1981-02-09 1982-06-11 Fehrer Ernst Vorrichtung zum herstellen eines garnes
EP0098380B1 (fr) * 1981-02-21 1987-07-15 Hollingsworth (U.K.) Limited Dispositif de filage par friction
JPS5944406B2 (ja) * 1981-11-24 1984-10-29 村田機械株式会社 紡績方法
AT381731B (de) * 1982-12-10 1986-11-25 Fehrer Ernst Verfahren und vorrichtung zum herstellen eines garnes aus einer verstreckten faserlunte
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JPH106529A (ja) * 1996-06-19 1998-01-13 Canon Inc インクジェットプリント装置

Also Published As

Publication number Publication date
EP0165398A1 (fr) 1985-12-27
US4783956A (en) 1988-11-15
IN164144B (fr) 1989-01-21
US4660371A (en) 1987-04-28
JPH0149806B2 (fr) 1989-10-26
ATE32109T1 (de) 1988-02-15
AU573327B2 (en) 1988-06-02
AU4094585A (en) 1985-11-21
JPS60246824A (ja) 1985-12-06
DE3561475D1 (en) 1988-02-25

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