EP1318219A2 - Procédé et dispositif pour la filature des fibres par un rotor de filage - Google Patents

Procédé et dispositif pour la filature des fibres par un rotor de filage Download PDF

Info

Publication number
EP1318219A2
EP1318219A2 EP02025456A EP02025456A EP1318219A2 EP 1318219 A2 EP1318219 A2 EP 1318219A2 EP 02025456 A EP02025456 A EP 02025456A EP 02025456 A EP02025456 A EP 02025456A EP 1318219 A2 EP1318219 A2 EP 1318219A2
Authority
EP
European Patent Office
Prior art keywords
yarn
swirl
rotor
leg
spinning
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.)
Withdrawn
Application number
EP02025456A
Other languages
German (de)
English (en)
Other versions
EP1318219A3 (fr
Inventor
Bernhard Schwabe
Bettina Voidel
Peter Voidel
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
W Schlafhorst AG and Co
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 W Schlafhorst AG and Co, Saurer GmbH and Co KG filed Critical W Schlafhorst AG and Co
Publication of EP1318219A2 publication Critical patent/EP1318219A2/fr
Publication of EP1318219A3 publication Critical patent/EP1318219A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • D01H4/40—Removing running yarn from the yarn forming region, e.g. using tubes

Definitions

  • the invention relates to a method for spinning textiles Staple fibers according to the preamble of claim 1 and one Device for performing the method according to claim 6.
  • This fiber ring is one by one through the thread end Thread take-off nozzle broken open thread and the in the area of a so-called integration zone under the Influence of rotor rotation forming new thread over the Thread take-off nozzle drawn off at a constant speed.
  • a thread leg is formed between the so-called binding zone and the thread take-off nozzle and rotates in the direction of rotation of the rotor at approximately the rotor speed.
  • the yarn leg has a thread pulling force that decreases with increasing rotor radius.
  • additional false wire is placed on the thread, preferably via the thread withdrawal nozzle.
  • the size of the false wire must, however, be dosed precisely, since if the false wire is too high there is a risk that the thread will be overturned in the area of the binding zone.
  • a high false wire increases the risk of spinning wrapping fibers with a low pitch angle up to abdominal bandages without a pitch.
  • the yarn leg has a largely linear course in the region of the rotor groove during its rotation between the thread take-off nozzle and the binding zone.
  • the twine leg only bends relatively sharply in the direction of rotor rotation at the so-called separation point, which is immediately in front of the binding zone. This means that the radius of curvature in the area of the deflection point is relatively small.
  • such a small radius of curvature has the disadvantage that it at least severely hinders the spreading of the false wire introduced via the thread draw-off nozzle into the binding zone.
  • an open-end spinning device which has a relatively large-area thread draw-off nozzle.
  • the yarn leg slides on the surface of the yarn withdrawal nozzle during the yarn take-off and is thereby braked mechanically, which leads to a bulging of the yarn leg against its direction of rotation.
  • the critical radius of curvature of the yarn leg in the area of the deflection point can be mitigated, but it is disadvantageous with such a device that, due to the large-area support of the thread on the surface of the thread take-off nozzle, a very high false wire is placed on the yarn leg, with which already highly negative consequences described above.
  • a comparable spinning device in which the yarn leg is mechanically acted on, is also described on page 10 of the magazine "Textil cleanse” (edition: November 1976).
  • the OE rotor spinning device described in this article has a rotatably mounted spinning chamber with a flat spinning chamber base and a friction disk that can be rotated in the opposite direction. Between these two friction elements, the fiber material fed rotates.
  • the Invention based on the object, a method and a Develop device through which, among other things, a Quality improvement of yarns, for example through Reduction in the proportion of wrapping fibers can be achieved can.
  • this object is achieved by a method as described in claim 1, or by a device according to claim 6.
  • the method according to the invention that is to say the pneumatic bulging of a twine leg rotating at high speed in the opposite direction of its rotation has the particular advantage that the figuration of the twine leg in the area in front of the so-called separation point could be sustainably improved by increasing the radius of curvature in the sense of better initiation of rotation, without increasing the risk that the yarn receives additional lower thirds.
  • the bulging of the yarn leg means that the yarn in the area of the rotor groove, that is to say in the binding zone, has a higher yarn tensile force, which has a positive effect on the yarn formation.
  • the individual air flows emerge from the swirl air bores of a so-called swirl ring, as described in claim 3.
  • the swirl ring is arranged in the area of the thread take-off nozzle and completely surrounds it. Since the swirl air bores are connected to one another via a so-called ring channel, it is ensured that all individual air flows always have an almost equal strength.
  • the strength of the individual air streams can also be adjustable if required.
  • the swirl air bores of the swirl ring are advantageously arranged in such a way that the individual air streams act on the rotating yarn leg at a predetermined, optimal righting angle ⁇ . It has been found to be particularly advantageous if the righting angle ⁇ of the individual air streams, based on the plane of rotation of the yarn leg, is between 10 ° and 30 ° (claim 4).
  • the device according to the invention is characterized in that a fiber duct plate closing the rotor housing is present and in that a plurality of swirl air bores are arranged in the region of the fiber duct plate and surround the thread take-off nozzle in a ring shape.
  • a fiber duct plate closing the rotor housing is present and in that a plurality of swirl air bores are arranged in the region of the fiber duct plate and surround the thread take-off nozzle in a ring shape.
  • the mouths of the swirl air bores are directed both against the direction of rotation of the yarn leg and with respect to the plane of rotation of the yarn leg at an erection angle ⁇ which is between 10 ° and 30 °.
  • About 20 to 40 swirl air bores are preferably provided per swirl ring, each having a diameter between 0.2 and 1.0 mm.
  • the swirl air bores are supplied with compressed air, preferably via a separate compressed air source.
  • a separate compressed air source preferably via a pneumatic line.
  • Such a compressed air source then simultaneously supplies all of the swirl rings of the open-end spinning machine with the necessary pneumatic energy.
  • the swirl air bores are connected to the atmosphere on the inlet side (claim 12).
  • the negative pressure prevailing within the rotor housing in the area of the swirl air bores generates individual air flows which bulge the rotating yarn leg against its direction of rotation.
  • the swirl air bores each form a swirl ring which surrounds a thread take-off nozzle arranged in an exchangeable duct plate adapter.
  • the open-end spinning device shown in FIG. 1 bears the overall reference number 1.
  • the spinning device has a rotor housing 2, in which the spinning cup of a spinning rotor 3 rotates at high speed.
  • the spinning rotor 3 is supported with its rotor shaft 4 in the bearing gusset of a support disk bearing 5 and is acted upon by a machine-long tangential belt 6, which is started by a pressure roller 7.
  • the rotor shaft 4 is axially fixed, for example, by means of a permanent magnetic axial bearing 18.
  • the rotor housing 2 which is open towards the front, is closed during the spinning operation by a pivotably mounted cover element 8, into which a channel plate 26, which is not shown in FIG. 1 and has a circumferential lip seal 9, is inserted.
  • the rotor housing 2 is also connected via a corresponding suction line 10 to a vacuum source 11, which generates the spinning vacuum required in the rotor housing 2.
  • a channel plate adapter 12 is interchangeably arranged, which has a thread draw-off nozzle 13, the (not shown) mouth area of a fiber guide channel 14 and a swirl ring 37 according to the invention.
  • a thread take-off tube 15 connects to the thread take-off nozzle 13.
  • an opening roller housing 17 is fixed on the cover element 8, which is rotatably supported to a limited extent about a pivot axis 16.
  • the cover element 8 furthermore has bearing brackets 19, 20 on the back for mounting an opening roller 21 or a sliver feed cylinder 22.
  • the opening roller 21 is driven in the region of its whorl 23 by a circumferential, machine-long tangential belt 24, while the (not shown) drive of the sliver feed cylinder 22 is preferably carried out via a worm gear arrangement which is connected to a machine-long drive shaft 25.
  • FIG. 2 shows 1 on a larger scale and in section a partial view of the open-end spinning device shown schematically in FIG.
  • the rotor housing 2 which is open at the front, is closed during operation by a fiber channel plate 26 of the cover element 8.
  • the fiber channel plate 26 is either attached to the cover element 8 as a separate component or integrated directly into the cover element 8.
  • the fiber channel plate 26 has an annular recess 27 in which the lip sealing element 9 is mounted.
  • the fiber channel plate 26 has a receptacle 28 which is open in the direction of the rotor housing 2 and whose lateral contact surface 29 is designed in the manner of a cone.
  • a channel plate adapter 12 is aligned with its bearing body 30 at an exact angle and is easily detachable. The attachment takes place, for example, by means of a magnetic coupling 31.
  • the channel plate adapter 12 has a central bore for a thread take-off nozzle 13.
  • a swirl ring 37 is also positioned in the area of the thread take-off nozzle 13 and has a multiplicity of swirl air bores 38.
  • the channel plate adapter 12 has on its side opposite the thread take-off nozzle 13 a connection means 32 which is designed as a ferromagnetic, annular disk. The connection means 32 is firmly pressed into the channel plate adapter 12 made, for example, of aluminum or plastic.
  • the magnetic coupling 31 further consists of two arranged symmetrically in the base of the receptacle 28, disc-shaped permanent magnets 33 which have a in the Recording 28 fixed bearing plate 34 on the Fiber channel plate 26 are set.
  • connection means 32 is attached to the connection means 32 and through a rear opening of the fiber channel plate 26 partially outwardly projecting ejector 36 is present, which it in If necessary, simply loosen the duct plate adapter 12 enabled by the fiber channel plate 26.
  • the thread take-off nozzle 13 embedded in the channel plate adapter 12 is surrounded by a swirl ring 37.
  • This swirl ring 37 which surrounds the thread take-off nozzle 13 in a circular manner, has numerous swirl air bores 38 pointing counter to the direction of rotation R of the spinning rotor 3.
  • the individual swirl air bores 38 are connected via an annular channel 39, which is either connected to an overpressure source 41 via an air supply line 40 or connected to the atmosphere. In the latter case, the air flow at the swirl air bores 38 is generated via the spinning vacuum generated by the vacuum source 11.
  • the swirl air bores 38 arranged in the swirl ring 37 each have a relatively small diameter, preferably between 0.2 and 1.0 mm.
  • the swirl air bores 38 are arranged at an angle to the plane of rotation RE of the yarn leg 44, that is to say the air streams ELS emerging from the swirl air bores act on the rotating yarn leg at a so-called righting angle ⁇ , which is between 10 degrees and 30 degrees is.
  • the small diameters of the swirl air bores 38 have the advantage that, with a sufficiently high air flow speed, only a relatively small amount of air is required to bulge the rotating yarn leg 44. It is thereby reliably prevented that the suction flow effective in the area of the spinning rotor edge is adversely affected and the economy of the spinning device is thus deteriorated.
  • open-ended rotor spinning works with both real wire and false wire, both types of twist being applied to the rotating yarn leg.
  • the real wire is produced by the spinning rotor 3 rotating at high speed, while the false wire is essentially introduced via the thread draw-off nozzle 13.
  • the twists applied to the yarn legs 44 propagate into the rotor groove 46 of the spinning rotor 3 and collect the individual fibers fed in via a fiber guide channel 14 in the so-called binding zone 45.
  • the new yarn is then drawn off via the take-off rollers 43 and runs, for example, via a torque stop 42.
  • the rotating yarn leg 44 usually has an almost straight course. That is, the yarn leg 44 only kinks relatively sharply immediately in front of the binding zone 45 lying in the rotor groove 46. This sharp kink greatly impedes the spreading of sufficient rotations into the area of the rotor groove 46, that is to say, specifically into the integration zone 45. In addition, since the yarn tensile force before the kink is relatively low, there is also the risk that double twists, so-called cylinder coils, are generated there.
  • this radius of curvature significantly increases the radius of curvature between the yarn leg 44 and the binding zone 45, thereby facilitating the spreading of the yarn twist from the yarn leg 44 into the binding zone 45.
  • Pneumatic bulging also produces a somewhat greater yarn tensile force in this area and correspondingly a greater yarn tensile force counter moment.
  • This larger yarn tensile force counter moment limits the size of the false wire to such an extent that the method according to the invention leads to an improvement in the quality of the yarn produced, both with regard to the structure, the tenacity, the elongation at break and the working capacity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP02025456A 2001-12-06 2002-11-15 Procédé et dispositif pour la filature des fibres par un rotor de filage Withdrawn EP1318219A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001160067 DE10160067A1 (de) 2001-12-06 2001-12-06 Verfahren und Vorrichtung zum Verspinnen textiler Stapelfasern mittels eines Spinnrotors
DE10160067 2001-12-06

Publications (2)

Publication Number Publication Date
EP1318219A2 true EP1318219A2 (fr) 2003-06-11
EP1318219A3 EP1318219A3 (fr) 2003-08-13

Family

ID=7708325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02025456A Withdrawn EP1318219A3 (fr) 2001-12-06 2002-11-15 Procédé et dispositif pour la filature des fibres par un rotor de filage

Country Status (4)

Country Link
EP (1) EP1318219A3 (fr)
CN (1) CN1422998A (fr)
CZ (1) CZ20023685A3 (fr)
DE (1) DE10160067A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10339875A1 (de) * 2003-08-29 2005-03-24 Saurer Gmbh & Co. Kg Kanalplatte für eine Offenend-Rotorspinnvorrichtung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101254116B (zh) * 2004-08-31 2010-06-16 株式会社东芝 超声波探测器诊断装置
DE102008055845A1 (de) * 2008-11-04 2010-05-06 Oerlikon Textile Gmbh & Co. Kg Offenend-Spinnvorrichtung
DE102009057202A1 (de) * 2009-11-26 2011-06-01 Spindelfabrik Suessen Gmbh Lagerungseinheit für hohe Drehzahlen
DE102012108550A1 (de) * 2012-02-08 2013-08-08 Maschinenfabrik Rieter Ag Garnabzugseinheit einer Rotorspinnmaschine sowie Verfahren zur Herstellung eines Garns mit Hilfe einer Rotorspinnmaschine
CN104213264B (zh) * 2014-08-22 2018-01-12 东华大学 一种转杯纺方法
DE102015115912A1 (de) * 2015-09-21 2017-03-23 Maschinenfabrik Rieter Ag Kanalplattenadapter und Offenendspinnvorrichtung mit einem Kanalplattenadapter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT268942B (de) * 1965-09-11 1969-02-25 Vyzk Ustav Bavlnarsky Verfahren zum Verspinnen von textilen Stapelfasern in einer Spinnkammer
US3844100A (en) * 1971-10-19 1974-10-29 Platt International Ltd Apparatus for the open-end spinning of textile yarns

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE632762A (fr) * 1962-05-25
DE19828842A1 (de) * 1998-06-27 1999-12-30 Rieter Ingolstadt Spinnerei Offenend-Spinnverfahren und -vorrichtung
DE19963087A1 (de) * 1999-12-24 2001-06-28 Schlafhorst & Co W Verfahren zum Offenend-Rotorspinnen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT268942B (de) * 1965-09-11 1969-02-25 Vyzk Ustav Bavlnarsky Verfahren zum Verspinnen von textilen Stapelfasern in einer Spinnkammer
US3844100A (en) * 1971-10-19 1974-10-29 Platt International Ltd Apparatus for the open-end spinning of textile yarns

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10339875A1 (de) * 2003-08-29 2005-03-24 Saurer Gmbh & Co. Kg Kanalplatte für eine Offenend-Rotorspinnvorrichtung

Also Published As

Publication number Publication date
EP1318219A3 (fr) 2003-08-13
CZ20023685A3 (cs) 2003-09-17
CN1422998A (zh) 2003-06-11
DE10160067A1 (de) 2003-06-18

Similar Documents

Publication Publication Date Title
DE19815054C1 (de) Verfahren und Spinnmaschine zum Herstellen von Coregarn
DE4122216A1 (de) Spinnvorrichtung
CH678635A5 (fr)
DE1685881B2 (de) Vorrichtung zur herstellung eines garnes
CH692744A5 (de) Fadenabzugdüse.
EP3276057B1 (fr) Unité guide-fil, métier à filer à bout ouvert et procédé de fonctionnement d'un poste de filage
DE3402084A1 (de) Verfahren und vorrichtung zur spinnfasernformation
EP1560960A1 (fr) Procede et dispositif pour produire une meche
EP1318219A2 (fr) Procédé et dispositif pour la filature des fibres par un rotor de filage
EP0110150B1 (fr) Dispositif de filature à tuyère
DE3539383C2 (fr)
DE3828189A1 (de) Verfahren und vorrichtung zum anspinnen eines doppelfadens nach einem fadenbruch
EP1660708B1 (fr) Plaque a rainure-guide pour un dispositif de filature a rotor a bout libere
CH692048A5 (de) Verfahren und Vorrichtung zum Offen-End-Spinnen von Garn.
DE1535014C3 (de) Offen-End-Spinnvorrichtung
DE3246960A1 (de) Verfahren und vorrichtung zum spinnen eines faserbuendelgarnes
DE2845421A1 (de) Verfahren und vorrichtung zum spinnen von garn
DE3521665A1 (de) Friktionsspinnmittel fuer eine friktionsspinn-vorrichtung
DE1685881C3 (de) Vorrichtung zur Herstellung eines Garnes
EP4067543A1 (fr) Procédé et dispositif de fabrication d'un composite fibreux textile
DE102020133359A1 (de) Multifunktionsdüse für eine Spinnmaschine
DE4223833A1 (de) Verfahren und Vorrichtung zum Spinnen eines Garnes nach einem Friktionsspinnverfahren
DE10244497A1 (de) Offenend-Spinnvorrichtung
DE1710020C3 (de) Vorrichtung zur Zuführung von Fasern zu einer Spinnturbine
DE4303336A1 (de) Verfahren zum Verspinnen von Stapelfasern zu einem Garn sowie Vorrichtung zum Durchführen des Verfahrens

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SAURER GMBH & CO. KG

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040214