EP1685283B1 - Canal de guidage de fibres - Google Patents

Canal de guidage de fibres Download PDF

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Publication number
EP1685283B1
EP1685283B1 EP04741356A EP04741356A EP1685283B1 EP 1685283 B1 EP1685283 B1 EP 1685283B1 EP 04741356 A EP04741356 A EP 04741356A EP 04741356 A EP04741356 A EP 04741356A EP 1685283 B1 EP1685283 B1 EP 1685283B1
Authority
EP
European Patent Office
Prior art keywords
guide channel
opening
fibre guide
channel
rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04741356A
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German (de)
English (en)
Other versions
EP1685283A1 (fr
Inventor
Bettina Voidel
Peter Voidel
Bernhard Schwabe
Hans Grecksch
Heinz-Georg Wassenhoven
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Saurer GmbH and Co KG
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
Application filed by Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP1685283A1 publication Critical patent/EP1685283A1/fr
Application granted granted Critical
Publication of EP1685283B1 publication Critical patent/EP1685283B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D01H4/38—Channels for feeding fibres to the yarn forming region

Definitions

  • the invention relates to a fiber guide channel for the pneumatic transport of individual fibers according to the preamble of claim 1.
  • Such fiber guide channels are known in connection with open-end spinning devices by numerous publications.
  • the DE 195 11 084 A1 describes, for example, an open-end spinning device with a sliver disintegrating device, in which a sliver stored in a sliver can, as usual, a rotating opening roller is presented, which dissolves the sliver into individual fibers.
  • the individual fibers are then fed via a Faserleitkanal on a rotating in a rotor housing at high speed spinning rotor, where they are continuously turned in an internal rotor groove to the end of a spinning rotor leaving a spinning nozzle yarn.
  • the finished yarn is then wound on an associated winding device to form a cross-wound bobbin.
  • Faserleitkanal is also in the DE 197 12 881 A1 described.
  • the opening roller housing is pneumatically connected to the spinning rotor via a multi-part Faserleitkanal. That is, the Faserleitkanal consists of two separate channel sections, namely a running within a so-called Faserleitkanalcommunes channel section and arranged in a channel plate adapter channel section.
  • the channel plate adapter which also has a bore for fixing a thread withdrawal nozzle in addition to the mouth region of the fiber guide channel, extends into the revolving spinning rotor. In this way, it is ensured that the mouth region of the fiber guide channel is positioned sufficiently close to the fiber slipper wall of the spinning rotor, so that the individual fibers transported in the fiber guide channel are fed up properly to the spinning rotor.
  • the fiber guide channels have an inlet opening whose width is matched to the width of the opening roller set.
  • an extension of the fibers is also the free Cross-sectional area of such Faserleitkanäle usually chosen so that it decreases in the direction of the outlet opening of the Faserleitkanals out.
  • the outlet opening has essentially a circular cross-section, the minimum diameter is predetermined by the required air and fiber throughput during spinning.
  • the fibers are fed onto a relatively wide area of the fiber slipper wall of the spinning rotor.
  • fiber guide channels with round outlet openings Apart from fiber guide channels with round outlet openings, fiber guide channels with an elongated outlet opening extending essentially in the direction of the rotor circumference are state of the art.
  • the DE-OS 19 30 760 describes, for example, an open-end spinning device with a fiber guide channel which connects an opening roller and a spinning rotor.
  • the fiber guide channel can, in particular also in the region of the outlet opening, have different cross-sectional shapes, for example a rectangle, trapezium, etc.
  • the channel shape from the inlet to the opening roller to the mouth in Spinning rotor essentially unchanged.
  • the fibers conveyed in this fiber guide channel are largely conveyed in the position and spread to the fiber slide surface of the spinning rotor in which they pass from the opening roller into the fiber guide channel.
  • the invention has for its object to develop a Faserleitkanal having a shape that ensures stretching and bundling of the fibers on their way to Faserloisisation.
  • the fibers which have been combed out of the initial fiber ribbon by the opening roller are easily and almost completely sucked into the fiber guide channel.
  • an acceleration of the air and fiber flow including an increased fiber stretching and fiber bundling.
  • This bundling takes place primarily in the plane in which the largest width of the slot-shaped inlet opening lies.
  • the channel cross section is reduced only so far that a sufficient air throughput for the spinning process is ensured.
  • the cross-sectional shape of the fiber guide channel again goes into one Slot shape over. However, the major extent of this slot shape is rotated about 90 ° with respect to the slot shape at the fiber channel entrance.
  • This angle refers to an imaginary center line, which also follows a curvature of the fiber guide channel.
  • the projected free cross section is reduced to the sectional area between the two slot shapes.
  • This reduced cut surface is decisive for the fiber bundling, as it is effective in the emergence of the fibers from the Faserleitkanal. Since, in spite of this bundling of the fiber stream, the free cross section of the fiber guide channel is not reduced to a corresponding extent, essentially to the said sectional area, the required air throughput can nevertheless be ensured. This result can not be achieved if it is attempted to effect the fiber bundling to a similar extent solely by tapering the fiber guide channel, since then the required air flow rate can not be guaranteed.
  • Faserleitkanals also ensures that the fibers remain largely without physical contact with the wall of the Faserleitkanals during their pneumatic transport from the opening roller to the spinning rotor, which has an overall very positive effect on the spinning process.
  • the main expansion direction of the outlet opening is aligned approximately parallel to the rotor groove, whereby the fiber feed is limited to a narrow range.
  • This narrow region ensures such a fiber feeding onto the rotor slip surface that, with a spaced-apart arrangement relative to the rotor groove, a sufficiently long path of the fibers to the rotor groove must be covered, which ensures good stretching of the markedly predominant number of fibers.
  • the cylindrical channel shape is at least approximately circular.
  • the cylindrical shape can also be understood as slightly conical in order to maintain a minimum amount of air acceleration in this area as well.
  • the curvature of the last channel portion described in claims 3 and 4 serves the purpose of the gradual approximation of the fiber flow to the curvature of the fiber slipper wall of the spinning rotor. In this way, a fiber compression is prevented, which could lead to significant strength losses in the finished thread.
  • the curvature is advantageously carried out with the channel broadening or - flattening.
  • the concentration of the curvature on the inner wall of the fiber guide channel leads to a concentration of the fiber stream to the vicinity of the outer wall region of the second channel section, but above all, an excessive deflection of the fibers in the fiber guide channel, which could cause compression, avoided.
  • the channel design according to claim 5 ensures the maintenance of the required air flow for the spinning process.
  • the Faserleitkanal is formed in two parts and has a substantially stationary terminal body and an easily replaceable mounted channel plate adapter.
  • a first channel portion is arranged with the slot-like inlet opening and a preferably round output hole
  • the channel plate adapter has a second channel portion with a round inlet opening and a likewise slit-like, but with respect to the inlet opening rotated by about 90 ° about the longitudinal axis of the fiber guide outlet opening ,
  • the outlet opening of the first channel section arranged in the connection body and the inlet opening of the second channel section arranged in the channel plate adapter are advantageously matched to one another both in their shape and in their size. That is, over the entire length of the Faserleitkanals is always a uniform transport air flow with a virtually interference-free transition of the individual fibers from one channel section to the other channel section given.
  • the exact match of the outlet opening of the connector body with the inlet opening of the channel plate adapter also makes it possible, if necessary, for example, during a batch change, easily the channel plate adapter can be changed.
  • the transport air flow within the Faserleitkanals is affected by such a change of the channel plate adapter in any way negative.
  • Such an embodiment leads to a concentration of the fiber stream in the vicinity of the outer wall region of the second channel section and thus to an advantageous bundling of the fed-up individual fibers.
  • the outlet opening of the fiber guide is positioned so that when feeding the fibers onto the fiber slipper surface of the spinning rotor between the feed area and the rotor opening a fiber-free ring of at least 0.5 mm remains (claim 7).
  • the Faserleitkanal has an outlet opening whose height is between 1.5 mm and 4.5 mm. Such a dimensioning of the outlet opening allows a precisely defined storage of these fibers on a designated area of the fiber sliding surface of the spinning rotor.
  • the open-end spinning apparatus 1 shown in FIG. 1 has, as is known, a rotor housing 2 in which a spinning rotor 3 rotates at high speed during spinning operation.
  • the spinning rotor 3 is supported with its rotor shaft 22 in the Lagerzwickeln a support disk bearing 4 and is thereby fixed in the axial direction by an example permanent magnetic thrust bearing 21.
  • the drive of the spinning rotor 3 takes place either, as indicated, via a tangential belt 5, which is made by a support roller to the rotor shaft 22, or by a single drive.
  • the per se forwardly open rotor housing 2 is connected via a suction line 6 to a (not shown) vacuum source and closed during the spinning operation by a so-called fiber channel plate 45.
  • the fiber channel plate 45 which is arranged on a limited pivotally mounted about a pivot axis 16 rotatably mounted cover member 7, lies with a sealing element 17 on the end face of the rotor housing 2 at.
  • a Faserbandzu wool- and - dissolved 8 which includes, inter alia, a sliver pick-up roller 9, a sliver feed cylinder 10 and a fiber guide 11.
  • the sliver-opening roller 9 circulating in an opening roller housing 23 is driven, for example, by a tangential belt 12, while the sliver-take-in cylinder 10 is acted upon by a machine-length drive shaft or, as indicated, by a single drive 15, preferably a stepping motor.
  • Into the fiber channel plate 45 is preferably incorporated in the direction of the spinning rotor 3 towards open receptacle 13, for example, has a circular, conical contact surface.
  • a so-called channel plate adapter 18 set easily replaceable.
  • the opening cylinder housing 23 is connected pneumatically to the rotor housing 2 via the fiber guide channel 11. That is, individual fibers, which are combed out by the sliver-feeding and -auflinate Sk 8 from a (not shown) original fiber tape are conveyed via the fiber guide 11 to the rotor housing 2 and then fed to the spinning at high speed spinning rotor 3.
  • the fiber guide channel 11 is formed in two parts between its inlet opening 25 and its outlet opening 26. That is, the fiber guide channel 11 is composed of a first fiber guide channel portion 11A and a second fiber guide channel portion 11B.
  • the first Faserleitkanalabites 11A which has the tuned to the clothing of the opening roller 9 inlet opening 25 of the Faserleitkanals 11, is in one Terminal body 29 is arranged, while the second Faserleitkanalabrough 11 B, which ends in the outlet opening 26, is integrated in the channel plate adapter 18.
  • both the inlet opening 25 and the outlet opening 26 of the Faserleitkanals 11 have a slot-like shape and are arranged with respect to the longitudinal axis 28 of the fiber guide 11 by about 90 ° rotated against each other. That is, the maximum extent B of the inlet opening 25 of the fiber guide 11 extends parallel to the axis of rotation 27 of the opening roller 9, while the maximum extent L of the outlet opening 26 of the fiber guide 11 approximately orthogonal to the longitudinal axis 33 of the channel plate adapter 18 and thus arranged orthogonal to the axis of rotation of the spinning rotor 3 is.
  • the channel section 11A arranged in the connection body 29 has a slot-like inlet opening 25 whose large extension B runs parallel to the axis of rotation 27 of the opening roller 9.
  • the free cross-sectional profile of Channel section 11A terminates in a preferably circular outlet opening 32nd
  • the outlet opening 32 is matched both in their shape and in their size to the inlet opening 31 of a second channel section 11B.
  • This second channel section 11B is integrated in a channel plate adapter 18 and ends, as can be seen in particular from FIGS. 3 and 4, in a slot-shaped outlet opening 26.
  • the second channel section 11B which over its entire length has an almost equal free cross-sectional area A, is, as shown in Figure 4, a total of something on the longitudinal axis 33 of the channel plate adapter 18 is curved out.
  • the longitudinal axis 33 of the channel plate adapter 18 adjacent wall portion 34 of the channel plate portion 11 B is slightly more curved than the outer wall portion 35 which extends with respect to the Faserloisisation 36 of the spinning rotor 3 almost tangentially.
  • the outlet opening 26 of the channel plate portion 11B and thus also of the fiber guide channel 11 in this case has a height H, which is preferably between 1.5 mm and 4.5 mm.
  • the outlet opening 2-6 is arranged (see FIG. 5) such that a fiber-free ring 39 is produced on the fiber sliding surface 36 of the spinning rotor 3, the width of which towards the spinning rotor opening 37 being at least 0.5 mm, but preferably being significantly wider.
  • FIG. 6 shows once again how the cross-sectional area of the fiber guide channel 11 develops from the inlet opening 25 to the outlet opening 26 over a cross section 31, 32 in a zone Z. It can be seen that the projected free cross section 50 is significantly smaller than all other cross sections. Therefore, the effective fiber bundling, which essentially takes place down to the projected free cross section 50, does not lead to a process-damaging reduction in the cross-sectional area for the air flow.

Landscapes

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

Claims (8)

  1. Canal de guidage de fibres pour transporter par voie pneumatique des fibres individualisées qui ont été extraites par peignage d'un ruban de fibres par un cylindre défibreur d'un métier à filer à fibres libérées qui tourne dans un carter de rouleau défibreur, vers un rotor de filage tournant à grande vitesse dans un carter de rotor pouvant être mis en dépression, la largeur au niveau de l'entrée du canal de guidage de fibres situé dans un couvercle destiné à fermer le carter de rotor étant adaptée à la garniture du cylindre défibreur, l'ouverture d'entrée et l'ouverture de sortie du canal de guidage de fibres présentant une forme semblable à une fente, et l'étendue maximale (B) de l'ouverture d'entrée s'étendant parallèlement à l'axe de rotation du cylindre défibreur, caractérisé en ce que, par rapport à l'étendue maximale (B) de l'ouverture d'entrée (25), l'étendue maximale (L) de l'ouverture de sortie (26) du canal de guidage de fibres (11) est tournée de 90° ± 15° autour d'une ligne médiane imaginaire (28) du canal de guidage de fibres (11), en ce que le canal de guidage de fibres (11) présente, entre l'ouverture d'entrée (25) et l'ouverture de sortie (26), une zone Z essentiellement cylindrique, en ce que la section transversale du canal de guidage de fibres (11) se rétrécit progressivement de l'ouverture d'entrée (25) vers la zone Z.
  2. Canal de guidage de fibres selon la revendication 1, caractérisé en ce que la section transversale du canal est au moins approximativement circulaire dans la zone Z.
  3. Canal de guidage de fibres selon la revendication 1 ou 2, caractérisé en ce que, dans son dernier tiers, le canal de guidage de fibres (11) est courbé dans le sens de rotation du rotor avec sa partie allant en s'aplatissant.
  4. Canal de guidage de fibres selon la revendication 3, caractérisé en ce que la zone de paroi (34) située à l'intérieur par rapport au sens de la courbure est plus fortement courbée que la zone de paroi opposée (35).
  5. Canal de guidage de fibres selon la revendication 3 ou 4, caractérisé en ce qu'indépendamment de la forme de la section transversale, la superficie de la section transversale sur toute la longueur de canal est choisie au moins assez grande pour garantir un débit d'air suffisamment important pour le processus de filage.
  6. Canal de guidage de fibres selon l'une des revendications 1 à 5, caractérisé en ce que le canal de guidage de fibres (11) est réalisé en deux parties et est composé d'un segment de canal (11A) placé dans un élément de raccordement (29), qui présente l'ouverture d'entrée (25) et une ouverture de sortie (32), et d'un segment de canal (11B) logé dans un adaptateur de plaque de canal (18), qui comporte l'ouverture de sortie (26) et une ouverture d'entrée (31).
  7. Canal de guidage de fibres selon l'une des revendications 1 à 6, caractérisé en ce que la zone de paroi (37) qui est adjacente à l'ouverture (38) du rotor de filage est disposée dans la zone de l'ouverture de sortie (26) de telle sorte que, durant le processus de filage, il se forme sur la surface de glissement des fibres (36) du rotor de filage (3) un anneau (39) ≥ 0,5 mm exempt de fibres en direction de l'ouverture du rotor de filage (38).
  8. Canal de guidage de fibres selon l'une des revendications 1 à 7, caractérisé en ce que la hauteur (H) de l'ouverture de sortie (26) du canal de guidage de fibres (11) est comprise entre 1,5 mm et 4,5 mm.
EP04741356A 2003-10-16 2004-08-03 Canal de guidage de fibres Expired - Lifetime EP1685283B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10348710A DE10348710A1 (de) 2003-10-16 2003-10-16 Faserleitkanal
PCT/EP2004/008670 WO2005047579A1 (fr) 2003-10-16 2004-08-03 Canal de guidage de fibres

Publications (2)

Publication Number Publication Date
EP1685283A1 EP1685283A1 (fr) 2006-08-02
EP1685283B1 true EP1685283B1 (fr) 2007-07-18

Family

ID=34428488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04741356A Expired - Lifetime EP1685283B1 (fr) 2003-10-16 2004-08-03 Canal de guidage de fibres

Country Status (6)

Country Link
US (1) US7347040B2 (fr)
EP (1) EP1685283B1 (fr)
CN (1) CN1867708A (fr)
BR (1) BRPI0414407A (fr)
DE (2) DE10348710A1 (fr)
WO (1) WO2005047579A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005050102B4 (de) 2005-10-18 2018-04-05 Rieter Ingolstadt Gmbh Offenend-Spinnvorrichtung mit einem Faserkanal aus mehreren Kanalbauteilen
DE102007000621A1 (de) * 2007-11-05 2009-05-07 Rieter Ingolstadt Gmbh Faserleitkanalbauteil für eine Offenend-Spinnvorrichtung
DE102009012045A1 (de) † 2009-03-06 2010-09-09 Oerlikon Textile Gmbh & Co. Kg Offenend-Rotorspinnvorrichtung
DE102010044181A1 (de) * 2010-11-19 2012-05-24 Maschinenfabrik Rieter Ag Faserkanaleinsatz
DE102011010925A1 (de) * 2011-02-11 2012-08-16 Oerlikon Textile Gmbh & Co. Kg Faserleitkanaleinrichtung für eine Offenend-Spinnvorrichtung
DE102011102883A1 (de) * 2011-05-31 2012-12-06 Oerlikon Textile Gmbh & Co. Kg Offenend-Spinnvorrichtung
DE102015115912A1 (de) 2015-09-21 2017-03-23 Maschinenfabrik Rieter Ag Kanalplattenadapter und Offenendspinnvorrichtung mit einem Kanalplattenadapter
CN106283286A (zh) * 2016-10-21 2017-01-04 苏州多道自动化科技有限公司 一种消除涡流的转杯纺纱器
CN106567165A (zh) * 2016-10-21 2017-04-19 苏州多道自动化科技有限公司 一种纺制高强力纱线的转杯纺方法
DE102017122318A1 (de) * 2017-09-26 2019-03-28 Saurer Spinning Solutions Gmbh & Co. Kg Verdichtereinrichtung
DE102018105075A1 (de) * 2018-03-06 2019-09-12 Saurer Spinning Solutions Gmbh & Co. Kg Faserleitkanaleinrichtung für eine Offenend-Spinnvorrichtung mit einer Rastverbindung
CN109505040B (zh) * 2018-11-20 2020-06-12 江阴艾泰克机械制造有限公司 一种用于增强纱线柔软感的纺纱方法及设备
CN111155208A (zh) * 2020-03-03 2020-05-15 江南大学 一种新的纺纱装置及其生产方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH499636A (de) * 1968-08-10 1970-11-30 Vyzk Ustav Bavlnarsky Spinnvorrichtung zum spindellosen Spinnen von Textilfasern
DE2364261C3 (de) * 1973-12-22 1982-12-23 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Faserzuführvorrichtung für eine mit Unterdruck arbeitende Offen-End-Spinnvorrichtung
DE3734544A1 (de) * 1987-10-13 1989-05-03 Schubert & Salzer Maschinen Offenend-spinnvorrichtung und verfahren zu deren herstellung
JPH0674530B2 (ja) * 1991-07-30 1994-09-21 村田機械株式会社 紡績装置
DE4307785C2 (de) 1993-03-12 2003-08-28 Rieter Ingolstadt Spinnerei Offenend-Spinnvorrichtung
WO1994001605A1 (fr) * 1992-07-01 1994-01-20 Rieter Ingolstadt Spinnereimaschinenbau Aktiengesellschaft Procede et dispositif de filage a fibre liberee
DE4416977C2 (de) * 1994-05-13 1996-12-19 Rieter Ingolstadt Spinnerei Offenend-Spinnvorrichtung
DE19511084A1 (de) * 1995-03-25 1996-09-26 Schlafhorst & Co W Offenend-Spinnvorrichtung
DE19632888A1 (de) * 1996-08-16 1998-02-19 Rieter Ingolstadt Spinnerei Offenend-Spinnvorrichtung und Verfahren zur Herstellung eines Transportkanals
DE19712881B4 (de) * 1997-03-27 2005-12-22 Saurer Gmbh & Co. Kg Offenend-Spinnvorrichtung
DE19857160B4 (de) * 1998-12-11 2011-09-15 Maschinenfabrik Rieter Ag Vorrichtung zum Offenend-Spinnen

Also Published As

Publication number Publication date
DE502004004388D1 (de) 2007-08-30
BRPI0414407A (pt) 2006-11-14
EP1685283A1 (fr) 2006-08-02
CN1867708A (zh) 2006-11-22
US7347040B2 (en) 2008-03-25
US20070148269A1 (en) 2007-06-28
DE10348710A1 (de) 2005-05-12
WO2005047579A1 (fr) 2005-05-26

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