EP0205840B1 - Procédé et dispositif de filature par friction par fibres libérées - Google Patents

Procédé et dispositif de filature par friction par fibres libérées Download PDF

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Publication number
EP0205840B1
EP0205840B1 EP86106077A EP86106077A EP0205840B1 EP 0205840 B1 EP0205840 B1 EP 0205840B1 EP 86106077 A EP86106077 A EP 86106077A EP 86106077 A EP86106077 A EP 86106077A EP 0205840 B1 EP0205840 B1 EP 0205840B1
Authority
EP
European Patent Office
Prior art keywords
spinning
friction roller
friction
roller
suction
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.)
Revoked
Application number
EP86106077A
Other languages
German (de)
English (en)
Other versions
EP0205840A3 (en
EP0205840A2 (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
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6273525&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0205840(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schubert und Salzer Maschinenfabrik AG filed Critical Schubert und Salzer Maschinenfabrik AG
Publication of EP0205840A2 publication Critical patent/EP0205840A2/fr
Publication of EP0205840A3 publication Critical patent/EP0205840A3/de
Application granted granted Critical
Publication of EP0205840B1 publication Critical patent/EP0205840B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • 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, fibers being fed onto the outer surface of a friction roller designed as a suction roller and conveyed thereon into a spinning gusset in which they are twisted into a yarn, and a device for carrying out the method.
  • the yarn spun with a friction spinning device can be produced at high production speed, but the yarn quality is still unsatisfactory. This obviously stems from an insufficiently stretched integration of the fibers into the fiber structure. It has been proposed (DE-OS 2,943,063) to feed the fibers in a direction inclined to the direction of withdrawal of the thread, the air flow in the vicinity of the thread-forming surface being such that at least some of the fibers approach the thread-forming surface is deflected in a direction which is closer to a direction parallel to the axis of the drawn-off thread. However, it has been shown that the problem of yarn quality cannot yet be solved with this device.
  • An open-end friction spinning device in which the dissolved fibers are fed to a suction roller at a distance from the wedge gap by means of a fiber feed channel, so that the fibers at the edge of the mouth of the feed channel undergo a deflection before they reach the wedge gap (DE-OS 3,300,636). This deflection is intended to stretch the fibers.
  • 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 tangentially and in the direction inclined to the surface line of the friction roller on the outer surface and reach the spider gusset in this position.
  • the fibers are optimally fed to the end of the thread, so that the fibers are well twisted and thus a useful yarn is produced.
  • the fibers are already aligned at a predetermined angle during their transition from the fiber feed channel into the spinning gusset and brought into contact with the end of the thread in this position, so that the fibers loop around it and a good connection is created.
  • the fibers sliding onto the outer surface of the friction roller are held thereon and are conveyed into the spinning gusset by the rotation of the friction roller.
  • the holding force can be selected so that the fibers are conveyed into the spinning gusset at the circumferential speed of the outer surface of the friction roller or at an angle across the outer surface.
  • the yarn is expediently withdrawn from the spinning gusset in the direction of the main direction determined by the fiber layer on the friction roller.
  • the device according to the invention is characterized in that the fiber feed channel has a side wall extending in the direction of the spinning gusset and the side of the fiber feed channel opposite this side wall is formed by the adjacent friction roller. As a result, the fibers reach the surface of the friction roller tangentially and are stretched at the transition from the fiber feed channel to the surface.
  • the fiber feed channel is arranged inclined with respect to the outer surface of the friction roller. Shielding of the fibers against interference, in particular against secondary air flows, is achieved in that the side wall extending to the spider gusset projects into the spider gusset. This shielding is optimized in that the side wall extends almost into the area of the yarn formation line in the spinning gusset.
  • the side wall of the fiber feed channel is adapted to the curvature of the friction roller so that the fibers receive good guidance around the circumference of the friction roller.
  • the fiber feed channel can be made flatter.
  • the fiber feed channel has a constant large cross-sectional area from its inlet opening to its mouth.
  • the alignment of the fibers for their proper piecing is significantly favored in that the feed angle of the fiber feed channel corresponds to a predetermined angle at which the rows of perforations are arranged with respect to the surface line of the friction roller. According to previous knowledge, it is particularly advantageous if the rows of perforations are particularly advantageous the suctioned friction roller are arranged at an angle of 40 ° to 60 °.
  • the storage and transport of the fibers on the roll shell in the desired position inclined to the spinning gusset is further promoted in that the contour of the suction opening of a suction insert arranged in the interior of the friction roller corresponds to the contour of the mouth of the fiber feed channel.
  • the strength of the suction effect exerted on the fibers increases from the feeding point of the fibers to the spinning gusset.
  • the two friction rollers 1 and 2 arranged in parallel and close to one another form a spinning gusset 20 (FIG. 2) and are driven in the same direction, for example, by means of a tangential belt (not shown).
  • the friction roller 1 is designed as a suction roller and has a jacket provided with rows of perforations 10, in which a suction insert 3 with a suction opening 30 is arranged in a stationary manner.
  • the suction insert 3 is pulled out of the jacket in FIG.
  • the suction insert 3 is, as indicated by the arrow P " , connected in a conventional manner to a vacuum device, not shown.
  • the friction roller 2 has a closed jacket, but it can also be designed as a suction roller, if necessary.
  • the fiber material to be spun is dissolved into individual fibers by a dissolving roller 4, which is preceded by a feed roller 5 with a feed table 50. These are fed through a fiber feed channel 6 onto the perforated jacket of the friction roller 1.
  • the fiber feed channel 6, which has a rectangular cross section, is formed by end walls 61 and 62 and side walls 63 and 64 connecting them.
  • the side wall 63 facing the friction roller 2 extends towards the spider gusset 20 and projects into it, as can be seen from FIG. 2, whereby it is expediently adapted to the curvature of the friction roller 1.
  • the side wall 63 thus causes on the one hand that the inflow of air to the suction opening 30 occurs essentially only through the fiber feed channel 6 and on the other hand helps to ensure that the fibers are guided safely around the circumference of the friction roller 1.
  • the side wall 63 is preferably placed into the spinning gusset 20 to such an extent that it extends almost into the yarn formation area. Depending on the spinning conditions, it may also be sufficient to form the side wall 63 straight and to let it end before the spinning gusset 20, as shown in FIG. 3. In any case, however, the side wall 64 ends at the line of contact 7 with the friction roller 1 (FIG. 1), so that from this line the side of the fiber feed channel 6 opposite the side wall 63 is open to the friction roller 1 and the lateral surface of the friction roller 1 the side wall 64 replaced ( Figure 2, 3).
  • the fiber feed channel 6 is also arranged inclined with respect to the surface line M of the friction roller 1, preferably such that its center line S (FIG. 1) encloses an angle a at which the fibers are fed.
  • the rows of perforations 10 of the friction roller 1 are also arranged at this angle a, with respect to the surface line M, and thus inclined to the thread take-off line (FIG. 5).
  • an angle a of 40 ° to 60 ° has proven to be favorable for the spinning result, as has an adaptation of the contour of the suction opening 30 of the suction insert 3 to the contour of the mouth of the fiber feed channel 6.
  • the fiber feed channel 6 corresponds to the contour of the mouth of the fiber feed channel 6 which is open towards the friction roller 1 and is identical to the cover in the operating state (inserted position). This also creates a sufficiently strong transport air flow in the fiber feed channel 6, which conveys the fibers onto the jacket of the friction roller 1. Accelerating the fibers during their transport through the fiber feed channel 6 is, however, usually not desired, which is why the fiber feed channel 6 is dimensioned such that it has a constant cross-sectional area from its inlet opening to its mouth.
  • the suction insert 3 is divided into sections I and II in the area of the suction opening 30 by a partition 11 (FIG. 2), which are each connected to vacuum devices with different outputs.
  • FIG. 4 Another possibility shown in FIG. 4 is to replace the suction opening 30 in the contour shown in FIG. 1 by a plurality of suction slits 31 to 36 of different length and width, such that the suction effect of the fibers feed point to the spinning gusset Slot to slot increased.
  • the fiber material which is broken down into individual fibers by the opening roller 4 becomes friction by the suction air flow flowing to the suction opening 30 through the fiber feed channel 6 roller 1 promoted, wherein when using a fiber feed channel with a consistently large cross-sectional area, fiber acceleration in the channel is avoided.
  • the fibers are fed onto the outer surface of the friction roller 1 tangentially and therefore without fiber compression, the fibers - corresponding to the predetermined inclination of the fiber feed channel in relation to the outer surface of the friction roller - sliding in a position inclined to the outer surface of the friction roller on the outer surface.
  • the integration of the fibers is significantly favored by this position.
  • Optimal conditions with regard to the alignment of the fibers result when the feed angle of the fiber feed channel corresponds to the predetermined angle a, at which the rows of perforations 10 of the friction roller 1 are arranged, and it is thereby possible for the fibers to align themselves with the rows of perforations.
  • the fibers are held in this position on the outer surface of the friction roller 1 by the suction air flow and conveyed into the spinning gusset by the rotation of the friction roller.
  • the fibers can be conveyed into the spinning gusset 20 in the transport area at the circumferential speed of the outer surface or even obliquely over the outer surface.
  • the pulling off of the yarn from the spinning gusset 20 takes place, as indicated by the arrow P in FIG. 1, preferably to the side which is essentially determined by the position of the fibers as the main direction. A repeated deflection of the fibers through the withdrawal direction is avoided.

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

Claims (15)

1. Procédé de filature par friction à fibres libérées ("open-end"), dans lequel des fibres sont amenées sur la surface latérale d'un rouleau de friction, conçu comme rouleau d'aspiration, et transportées sur ce rouleau dans un coin de pincement de filature, dans lequel elles sont retordues ensemble pour donner un filé, procédé caractérisé en ce que les fibres sont amenées dans le sens de rotation, tangentiellement et selon une direction inclinée par rapport à la surface latérale du rouleau de friction, de sorte qu'elles parviennent dans cette position dans le coin de pincement de filature.
2. Procédé selon la revendication 1, caractérisé en ce que les fibres qui glissent sur la surface latérale du rouleau de friction sont maintenues sur cette surface et transportées, dans le coin de pincement de filature, par la rotation du rouleau de friction.
3. Procédé selon la revendication 2, caractérisé en ce que les fibres sont transportées dans le coin de pincement de filature à la vitesse périphérique de la surface latérale du rouleau de friction.
4. Procédé de filature par friction à fibres libérées ("open-end"), dans lequel des fibres sont amenées sur la surface latérale d'un rouleau de friction, conçu comme rouleau d'aspiration, et transportées sur ce rouleau dans un coin de pincement de filature, dans lequel elles sont retordues ensemble pour donner un filé, en particulier selon la revendication 2, procédé caractérisé en ce que les fibres sont transportées dans le coin de pincement de filature en glissant obliquement sur la surface latérale.
5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que l'on extrait le filé, hors du coin de pincement de filature, dans le sens de la direction principale déterminée sur le rouleau de friction par la position des fibres.
6. Dispositif, en particulier pour l'exécution du procédé selon la revendication 1, comportant deux rouleaux de friction entraînés dans le même sens, formant un coin de pincement de filature, dont au moins l'un est perforé et conçu comme rouleau d'aspiration, ainsi qu'un canal d'amenée des fibres, qui amène les fibres sur la surface latérale du rouleau de friction conçu comme rouleau d'aspiration, dispositif caractérisé en ce que le canal d'amenée des fibres est disposé incliné par rapport à la génératrice (M) du rouleau (1) de friction et présente une paroi latérale (63) qui s'étend en direction du coin (20) de pincement de filature; et en ce que la face du canal (6) d'amenée des fibres, opposée à cette paroi latérale (63), est formée par le rouleau (1) de friction voisin.
7. Dispositif selon la revendication 6, caractérisé en ce que la paroi latérale (63), qui s'étend en direction du coin (20) de pincement de filature, pénètre dans ce coin (20) de pincement de filature.
8. Dispositif selon la revendication 7, caractérisé en ce que la paroi latérale (63) pénètre, au voisinage de la ligne de formation du filé, dans le coin (20) de pincement de filature, assez loin pour que des flux d'air auxiliaires gênants soient arrêtés.
9. Dispositif selon l'une des revendications 6 à 8, caractérisé en ce que la paroi latérale (63) du canal (6) d'amenée des fibres est adaptée à la courbure durouleau (1) de friction.
10. Dispositif selon l'une des revendications 6 à 9, caractérisé en ce que le canal (6) d'amenée des fibres présente une aire de section de valeur constante de son ouverture d'entrée à son embouchure.
11. Dispositif de filature par friction à fibres libérées ("open-end"), comportant deux rouleaux de friction entraînés dans le même sens, formant un coin de pincement de filature et dont au moins l'un est perforé et conçu comme rouleau d'aspiration, ainsi qu'un canal d'amenée des fibres qui amène les fibres sur la surface latérale du rouleau de friction conçu comme rouleau d'aspiration, en particulier selon l'une des revendications 6 à 10, dispositif caractérisé en ce que l'angle d'amenée du canal (6) d'amenée des fibres correspond à un angle (a) prédéterminé sous lequel les rangées des perforations (10) sont disposées par rapport à la génératrice (M) du rouleau (1) de friction.
12. Dispositif de filature à fibres libérées selon la revendication 11, caractérisé en ce que les rangées de perforations du rouleau (1) de friction mis sous vide sont disposées sous un angle (∞) de 40° à 60°.
13. Dispositif de filature à fibres libérées selon l'une des revendications 6 à 12 caractérisé en ce que le contour de l'ouverture (30) d'aspiration ménagée dans une garniture (3) d'aspiration, disposée à l'intérieur du rouleau (1) de friction coïncide avec le contour de l'embouchure du canal (6) d'amenée des fibres.
14. Dispositif de filature à fibres libérées selon l'une des revendications 6 à 13, caractérisé en ce que l'ouverture (30) d'aspiration est divisée en des tronçons exerçant un effet d'aspiration différent, de sorte que la force de l'effet d'aspiration exercé sur les fibres augmente depuis l'endroit de l'arrivée des fibres jusqu'au coin (20) de pincement de filature.
15. Dispositif de filature à fibres libérées selon la revendication 14, caractérisé en ce qu'il possède au moins un dispositif d'aspiration supplémentaire, de façon que la force de l'effet d'aspiration exercé sur les fibres augmente depuis l'endroit d'arrivée des fibres jusqu'au coin (20) de pincement de filature.
EP86106077A 1985-06-18 1986-05-02 Procédé et dispositif de filature par friction par fibres libérées Revoked EP0205840B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853521756 DE3521756A1 (de) 1985-06-18 1985-06-18 Verfahren und vorrichtung zum offenend-friktionsspinnen
DE3521756 1985-06-18

Publications (3)

Publication Number Publication Date
EP0205840A2 EP0205840A2 (fr) 1986-12-30
EP0205840A3 EP0205840A3 (en) 1987-08-12
EP0205840B1 true EP0205840B1 (fr) 1990-05-23

Family

ID=6273525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86106077A Revoked EP0205840B1 (fr) 1985-06-18 1986-05-02 Procédé et dispositif de filature par friction par fibres libérées

Country Status (10)

Country Link
US (1) US4731986A (fr)
EP (1) EP0205840B1 (fr)
JP (1) JPS6245727A (fr)
CN (1) CN1015998B (fr)
BR (1) BR8602394A (fr)
CS (1) CS276980B6 (fr)
DE (2) DE3521756A1 (fr)
HK (1) HK12092A (fr)
IN (1) IN168016B (fr)
SG (1) SG102091G (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3524942A1 (de) * 1985-07-12 1987-01-22 Schubert & Salzer Maschinen Verfahren und vorrichtung zum offenend-friktionsspinnen
AT386620B (de) * 1987-03-05 1988-09-26 Fehrer Ernst Vorrichtung zum herstellen eines garnes
DE4007607A1 (de) * 1990-03-09 1991-09-12 Schubert & Salzer Maschinen Spinnverfahren und vorrichtung zur herstellung eines garnes
CN113897712B (zh) * 2021-10-21 2023-05-09 安徽翰联色纺股份有限公司 一种流水线式的环保气流纺纱装置

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US2809599A (en) * 1954-12-06 1957-10-15 Franciscus H J Beeren Apparatus for attaching endless bands to garments
DE1902111A1 (de) * 1968-01-16 1969-09-04 Cotton Silk & Man Made Fibres Verfahren und Vorrichtung zur Herstellung von Faeden
CH499636A (de) * 1968-08-10 1970-11-30 Vyzk Ustav Bavlnarsky Spinnvorrichtung zum spindellosen Spinnen von Textilfasern
DD98119A1 (fr) * 1971-11-30 1973-06-12
DE2613263B2 (de) * 1976-03-27 1978-07-27 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verfahren zum Spinnen von Fasern und Vorrichtung zur Ausführung des Verfahrens
FR2345541A1 (fr) * 1976-03-27 1977-10-21 Barmag Barmer Maschf Procede pour la filature de fibres en un faisceau de fibres
FR2383253A1 (fr) * 1977-03-09 1978-10-06 Vyzk Ustav Bavlnarsky Procede et dispositif de filage de fil par friction suivant le principe open-end
CS196916B1 (en) * 1977-12-29 1980-04-30 Stanislav Didek Frictional yarn spinning apparatus
CS209209B1 (en) * 1978-05-17 1981-11-30 Stanislav Didek Method of yarn friction spinning based on spinning with open end and apparatus used for execution of the said method
DD138791A1 (de) * 1978-09-11 1979-11-21 Norbert Brunk Vorrichtung an einer offenend-spinnmaschine
GB2042599B (en) * 1978-10-26 1983-09-21 Platt Saco Lowell Ltd Open-end spinning apparatus
FR2480799A1 (fr) * 1980-04-17 1981-10-23 Alsacienne Constr Meca Procede et dispositif pour la filature de fibres textiles liberees
EP0062404B2 (fr) * 1981-02-21 1992-06-24 Hollingsworth (U.K.) Limited Dispositif de filature à friction à bout libéré
FR2529234A1 (fr) * 1982-06-29 1983-12-30 Asa Sa Procede et dispositif pour la realisation de files de fibres comportant une ame
DE3300636A1 (de) * 1983-01-11 1984-07-12 Fritz 7347 Bad Überkingen Stahlecker Oe-friktionsspinnvorrichtung
DE3308250A1 (de) * 1983-03-09 1984-09-13 Stahlecker, Fritz, 7347 Bad Überkingen Oe-friktionsspinnvorrichtung
DE3315777A1 (de) * 1983-04-30 1984-11-29 W. Schlafhorst & Co, 4050 Mönchengladbach Spinnvorrichtung
DE3464066D1 (en) * 1983-06-15 1987-07-09 Hollingsworth Uk Ltd Friction open-end spinning apparatus
DE3323189A1 (de) * 1983-06-28 1985-01-10 Fritz 7347 Bad Überkingen Stahlecker Vorrichtung zum oe-friktionspinnen
DE3323988A1 (de) * 1983-07-02 1985-01-03 Fritz 7347 Bad Überkingen Stahlecker Vorrichtung zum oe-friktionsspinnen
DE3330413A1 (de) * 1983-08-23 1985-03-14 Karl-Josef Dipl.-Ing. 4156 Willich Brockmanns Friktionsspinnvorrichtung
DE3330414A1 (de) * 1983-08-23 1985-03-14 Karl-Josef Dipl.-Ing. 4156 Willich Brockmanns Verfahren und vorrichtung zum aufbereiten der einer friktionsspinnmaschine zugefuehrten spinnfasern
DE3330418A1 (de) * 1983-08-23 1985-03-14 Karl-Josef Dipl.-Ing. 4156 Willich Brockmanns Friktionsspinnvorrichtung
DE3402083C2 (de) * 1984-01-21 1995-03-23 Brockmanns Karl Josef Dr Ing Verfahren und Vorrichtung zur Spinnfasernformation
DE3407339C2 (de) * 1984-02-29 1994-02-17 Schlafhorst & Co W Friktionsspinnvorrichtung
DE3422207A1 (de) * 1984-06-15 1985-12-19 W. Schlafhorst & Co, 4050 Mönchengladbach Friktionsspinnvorrichtung
AT388177B (de) * 1984-07-05 1989-05-10 Fehrer Ernst Vorrichtung zum herstellen eines garnes
US4590756A (en) * 1984-08-10 1986-05-27 Hans Stahlecker Open-end friction spinning
US4573312A (en) * 1984-08-23 1986-03-04 W. Schlafhorst & Co. Friction spinning apparatus

Also Published As

Publication number Publication date
CS451586A3 (en) 1992-05-13
JPS6245727A (ja) 1987-02-27
SG102091G (en) 1993-02-19
EP0205840A3 (en) 1987-08-12
CS276980B6 (en) 1992-11-18
CN1015998B (zh) 1992-03-25
JPH0313334B2 (fr) 1991-02-22
DE3521756A1 (de) 1987-01-08
CN86104036A (zh) 1987-04-22
HK12092A (en) 1992-02-21
US4731986A (en) 1988-03-22
EP0205840A2 (fr) 1986-12-30
IN168016B (fr) 1991-01-19
DE3671485D1 (de) 1990-06-28
BR8602394A (pt) 1987-01-21
DE3521756C2 (fr) 1988-03-03

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