EP1682703A1 - Auge d'alimentation pour dispositif ouvreur de ruban de fibres de dispositif de filage a sortie ouverte - Google Patents

Auge d'alimentation pour dispositif ouvreur de ruban de fibres de dispositif de filage a sortie ouverte

Info

Publication number
EP1682703A1
EP1682703A1 EP04764839A EP04764839A EP1682703A1 EP 1682703 A1 EP1682703 A1 EP 1682703A1 EP 04764839 A EP04764839 A EP 04764839A EP 04764839 A EP04764839 A EP 04764839A EP 1682703 A1 EP1682703 A1 EP 1682703A1
Authority
EP
European Patent Office
Prior art keywords
sliver
feed trough
opening roller
fiber
feed
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.)
Granted
Application number
EP04764839A
Other languages
German (de)
English (en)
Other versions
EP1682703B1 (fr
Inventor
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 EP1682703A1 publication Critical patent/EP1682703A1/fr
Application granted granted Critical
Publication of EP1682703B1 publication Critical patent/EP1682703B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers

Definitions

  • the invention relates to a feed trough for a sliver opening device of an open-end spinning device according to the preamble of claim 1.
  • Sliver opening device in which a cylindrical, preferably corrugated sliver feed cylinder with an associated feed trough has a clamping area for the
  • the slowly rotating sliver feed cylinder feeds the sliver to a downstream opening roller at a constant transport speed.
  • the sliver On its way to the opening roller, the sliver first passes through a compressor, which not only compresses the sliver, but also gives it a certain profile that is favorable for drawing in.
  • the compressed feed sliver then runs into the clamping area formed by the sliver feed cylinder and the feed trough, which is usually wider than that
  • the side webs also prevent uncontrolled lateral migration of the sliver due to the spiral arrangement of the sawtooth set.
  • sliver opening devices for open-end spinning devices which have an additional pressure roller in the region of the feed trough.
  • this known feed trough has a clamping area formed by a special pressure roller and a fiber ribbon feed cylinder, which is followed by a concave support surface for the fiber beard via a generously rounded transition area.
  • Lateral guide surfaces for the sliver are also arranged in the transition area.
  • Such fancy yarns have, for example, defined thick points that recur at intervals.
  • the amount of individual fibers to be fed into the spinning rotor must be changed periodically, that is to say that the fiber sliver to be presented to the opening roller must be abruptly accelerated and decelerated again and again for a short time.
  • the object of the invention is to create a feed trough which, in particular in the production of fancy yarns, ensures that the sliver is also optimally combed out during the acceleration phases of the sliver.
  • the invention is based on the knowledge that the high circulation speed of the teeth of the opening roller set creates a ventilation effect due to the circulating air flow, which hinders the penetration of the fiber beard into the opening roller set. This effect is particularly troublesome when a sudden increase in fiber, as occurs at the beginning of an effect in the yarn, is offered to the opening roller.
  • the solution according to the invention first ensures the forced penetration of the fiber beard into the ventilation flow, which already favors the removal of the fibers from the fiber beard, and the rapid and complete detection of the large amount of fibers offered by the opening roller assembly.
  • the sliver of sliver which is securely guided right up to the tips of the opening roller assembly by the feed trough according to the invention, cannot deviate to either side even in the acceleration phases. That is to say, if the sliver feed cylinder accelerates abruptly for a short time and thereby the opening roller briefly places considerably more sliver than normal, the feed trough according to the invention ensures that this significantly more of the fiber sliver is instantly converted into a significant amount of individual fibers by the opening roller. This significant increase in individual fibers is then visible on the yarn as a clean effect.
  • the area in front of the combing point K ensures that the fiber sliver is also very quickly and completely fed to the combing point even in its acceleration phases, avoiding detours between the clamping area and the opening roller.
  • the limitation of the lateral guidance of the sliver to the transition area ensures that the sliver guided between the guide lugs is already forced as close as possible to the opening roller assembly at this point.
  • the formation of the gap width profile described in claim 6 has proven to be particularly advantageous for the effectiveness of combing out, in particular under the condition of increased fiber supply.
  • the embodiment described in claim 7 ensures a long life of the feed troughs.
  • FIG. 1 is a front view of a fiber sliver opening device of an open-end spinning device, the feed trough according to the invention being shown in side view,
  • Fig. 4 is a food trough, as is known from the prior art, in front view.
  • FIG. 1 shows an opening roller housing 1 of a sliver opening device for an open-end spinning device.
  • an opening roller 2 is rotatably mounted, which has a so-called opening roller set 3 on its outer circumference for combing out a sliver 4.
  • the opening roller 2 rotates in the direction of arrow 5 during the spinning operation.
  • a sliver cylinder 7 rotatable in the direction of the arrow 6 and an associated feed trough 8 are also mounted.
  • the sliver 4 which is usually stored in a spinning can, not shown, is fed via a sliver compactor 9 into a clamping zone 10, which is formed by the feed trough 8 and the sliver feed cylinder 7.
  • the feed trough 8 is acted upon by a spring element (not shown) in the direction of the fiber ribbon feed cylinder 7 and presses the feed fiber ribbon 4 against the discontinuously drivable fiber ribbon feed cylinder 7 rotating in the direction of arrow 6.
  • the sliver feed cylinder 7 conveys the sliver 4 in the area of the opening roller 2, the
  • Opening roller set 3 combs out the sliver 4 into individual fibers which, as is known, are then fed via a fiber guide channel onto a spinning rotor.
  • the feed trough 8 has the embodiment and arrangement shown in more detail in FIGS. 2 and 3.
  • the feed trough 8 is mounted such that it can move to a limited extent about a pivot axis 16 and is acted upon by a spring element (not shown) in the direction of arrow 17 opposite to this direction of movement.
  • the feed trough 8 has a concavely curved clamping area 11 and also a concave-curved support surface 13 for the fiber beard.
  • a convexly rounded transition area 14 is arranged between the sliding and clamping area 11 and the support surface 13, the radius r of which is less than 2 mm.
  • lateral guide lugs 12 are also provided, which prevent the emigration
  • Acceleration phase of the sliver feed cylinder 7 can not evade and is immediately combed out completely, the sliver 4 is through the clamping area 11 of the
  • the extremely small radius r of the transition region 14 means that the distance C between the transition region 14 and the tips 20 of the opening roller assembly 3 is only 3 mm here, that is to say that the free gusset between the
  • Opening roller set 3 is minimized.
  • the support surface 13 is the
  • Feed trough 8 starting from a combing point K, is brought closer and closer to the tips 20 of the opening roller assembly 3.
  • the gap width A at the meshing point K is 1 mm.
  • Gap width B which at the end of the gap after a
  • Angular range W of 40 ° in the direction of rotation of the opening roller is 0.3 mm.
  • 3 shows a front view of the food trough 8 according to the invention.
  • the convexly rounded transition region 14 bordered by the lateral guide lugs 12 merges almost immediately into the concavely curved support surface 13. This means that the sliver 4, when it has crossed the transition region 14, is immediately increasingly promoted against the opening roller set 3, that it is combed out by the opening roller set 3 without delay even when there is an increased amount of fibers at the start of an effect in individual fibers.
  • FIG. 4 shows a feed trough according to the prior art. As shown, in such feeder troughs a transition area 14 is incorporated into the support surface 13, a flat guide surface 19, which is delimited by lateral guide walls.

Landscapes

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

Abstract

L'invention concerne une auge d'alimentation pour dispositif ouvreur de ruban de fibres de dispositif de filage à sortie ouverte, qui comprend une zone de serrage coopérant avec un cylindre d'alimentation en ruban de fibres, pour acheminer un ruban de fibres d'alimentation, comportant des parois de guidage latérales pour guider le ruban de fibres d'alimentation, ainsi qu'une surface d'appui concave pour fixer une houppe de fibres traitée par un cylindre ouvreur. Selon l'invention, il est prévu de concevoir l'auge d'alimentation (8) et de la disposer dans sa position de travail, de sorte à former une largeur de fente A entre la surface d'appui (13) et des pointes adjacentes (20) de la garniture du cylindre ouvreur (3), en un point de houppage K, qui soit de l'ordre de 0,7 à 1,5 mm. Ladite largeur de fente s'amenuise en continu sur une zone angulaire W dans le sens de rotation du cylindre ouvreur (2), d'au moins 30°, pour parvenir à une largeur de fente B < 0,5mm.
EP04764839A 2003-10-16 2004-09-03 Auge d'alimentation pour dispositif ouvreur de ruban de fibres de dispositif de filage a sortie ouverte Expired - Fee Related EP1682703B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10351365A DE10351365A1 (de) 2003-10-16 2003-10-16 Speisemulde für eine Faserbandauflöseeinrichtung einer Offenend-Spinnvorrichtung
PCT/EP2004/009888 WO2005047578A1 (fr) 2003-10-16 2004-09-03 Auge d'alimentation pour dispositif ouvreur de ruban de fibres de dispositif de filage a sortie ouverte

Publications (2)

Publication Number Publication Date
EP1682703A1 true EP1682703A1 (fr) 2006-07-26
EP1682703B1 EP1682703B1 (fr) 2007-07-25

Family

ID=34530094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04764839A Expired - Fee Related EP1682703B1 (fr) 2003-10-16 2004-09-03 Auge d'alimentation pour dispositif ouvreur de ruban de fibres de dispositif de filage a sortie ouverte

Country Status (5)

Country Link
US (1) US7392649B2 (fr)
EP (1) EP1682703B1 (fr)
CN (1) CN100445440C (fr)
DE (2) DE10351365A1 (fr)
WO (1) WO2005047578A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011116786A1 (de) 2011-10-22 2013-04-25 Oerlikon Textile Gmbh & Co. Kg Speisemulde für eine Faserbandauflöseeinrichtung einer Offenend-Spinnvorrichtung
EP2695982A1 (fr) * 2012-08-06 2014-02-12 Oskar Dilo Maschinenfabrik KG Dispositif et méthode pour égaliser ou obtenir un profil donné à un matelas de flocons de fibres
DE102017118392A1 (de) * 2017-08-11 2019-02-14 Saurer Spinning Solutions Gmbh & Co. Kg Speisetischvorrichtung für eine Faserbandauflösevorrichtung einer Offenend-Spinnvorrichtung
CN109109337A (zh) * 2018-07-27 2019-01-01 武汉理工大学 纤维缠绕机的纤维自动夹持模块
DE102019116584A1 (de) 2019-06-19 2020-12-24 Saurer Spinning Solutions Gmbh & Co. Kg Faserbandauflöseeinrichtung für eine Offenend-Spinnvorrichtung und Speisemulde für die Faserbandauflöseeinrichtung

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH578628A5 (fr) * 1973-01-16 1976-08-13 Vyzk Ustav Bavlnarsky
JPS5064546A (fr) 1973-10-17 1975-05-31
US4387558A (en) * 1978-04-29 1983-06-14 Siegfried Rehm Method for lining a housing of a fiber opening device and roller
CS231623B1 (en) * 1982-06-22 1984-12-14 Miloslav Kubovy Defibering device for spinning unit
DE3501842C2 (de) 1985-01-22 1997-08-21 Schlafhorst & Co W Faserbandauflöseaggregat für eine OE-Spinnmaschine
DE3709322C2 (de) * 1987-03-21 1999-10-14 Schlafhorst & Co W Zuführ- und Auflöseeinrichtung einer Offenend-Spinnvorrichtung
DE3817346A1 (de) 1988-05-20 1989-11-23 Schubert & Salzer Maschinen Vorrichtung zum zufuehren und aufloesen eines faserbandes an einer offenend-spinnvorrichtung
DE19504607A1 (de) * 1995-02-11 1996-08-14 Schlafhorst & Co W Faserbandzuführvorrichtung für OE-Spinnmaschinen
US5870890A (en) * 1995-07-19 1999-02-16 Zellweger Luwa Ag Method and apparatus for detecting the mass of fiber material in a spinning machine
DE19544839A1 (de) * 1995-12-01 1997-06-05 Schlafhorst & Co W Offenend-Spinnvorrichtung mit einer Schmutzentsorgungseinrichtung
DE19708944B4 (de) * 1997-03-05 2005-10-27 Saurer Gmbh & Co. Kg Faserbandzuführung für eine Offenend-Spinnvorrichtung
CN2474551Y (zh) * 2001-02-08 2002-01-30 任载江 具有可拆卸调换分梳板的纺纱器
DE10142488A1 (de) * 2001-08-30 2003-03-20 Schlafhorst & Co W Auflöseeinrichtung für eine Offenend-Spinnvorrichtung
DE10206059A1 (de) 2002-02-07 2003-08-14 Stahlecker Gmbh Wilhelm Vorrichtung zum Zuführen und Auflösen eines Faserbandes
DE10237672A1 (de) * 2002-08-16 2004-02-26 Rieter Ingolstadt Spinnereimaschinenbau Ag Auflösewalzengehäuse für eine Offenend-Spinnvorrichtung, Einsatz für ein Auflösewalzengehäuse und Verfahren zum modernisieren von Spinnvorrichtungen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005047578A1 *

Also Published As

Publication number Publication date
CN1863952A (zh) 2006-11-15
CN100445440C (zh) 2008-12-24
DE10351365A1 (de) 2005-06-02
US20070137168A1 (en) 2007-06-21
US7392649B2 (en) 2008-07-01
EP1682703B1 (fr) 2007-07-25
DE502004004458D1 (de) 2007-09-06
WO2005047578A1 (fr) 2005-05-26

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