EP1954617A1 - Buse d'air d'aspiration pour une machine textile - Google Patents

Buse d'air d'aspiration pour une machine textile

Info

Publication number
EP1954617A1
EP1954617A1 EP06829022A EP06829022A EP1954617A1 EP 1954617 A1 EP1954617 A1 EP 1954617A1 EP 06829022 A EP06829022 A EP 06829022A EP 06829022 A EP06829022 A EP 06829022A EP 1954617 A1 EP1954617 A1 EP 1954617A1
Authority
EP
European Patent Office
Prior art keywords
thread
nozzle
nozzle body
suction
section
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
EP06829022A
Other languages
German (de)
English (en)
Other versions
EP1954617B1 (fr
Inventor
Maximilian Preutenborbeck
Wilhelm Oehrl
Detlef Schelter
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.)
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
Oerlikon Textile 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37671081&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1954617(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP1954617A1 publication Critical patent/EP1954617A1/fr
Application granted granted Critical
Publication of EP1954617B1 publication Critical patent/EP1954617B1/fr
Active 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
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/10—Tension devices
    • D01H13/104—Regulating tension by devices acting on running yarn and not associated with supply or take-up devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/205—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage by means of a fluid
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/12—Arrangements preventing snarls or inadvertent doubling of yarns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a suction air nozzle for a textile machine according to the preamble of claim 1.
  • suction air nozzles have long been known and described in numerous patent applications in connection with spinning machines or winders or the operating machinery associated with these textile machines.
  • Such suction air nozzles are used, for example, to keep the yarn tension constant during the winding operation or are used, for example, in spinning machines to store the yarn excess that temporarily occurs when the work stations are raised and to deliver them successively to the winding device of the relevant workstation.
  • DE-OS 1 785 321 a textile machine is described in which in the thread running direction just before the winding device, close to the regular thread running path, a suction nozzle is positioned.
  • the Saugluftdüse has in the region of its inlet opening in each case an upper and a lower guide pulley and acts on the current thread pneumatically such that forms between the guide rollers extending into the suction air thread loop.
  • the suction air nozzle ensures that the thread is always wound with a sufficiently large thread tension on a winding device.
  • a similar suction air nozzle for temporarily receiving a relatively large amount of yarn is also described in DE-AS 22 21 316 using the example of an open-end spinning machine or in EP 1 207 225 A2, which shows the use of such a suction nozzle on an air-spinning machine.
  • suction air nozzles described in the cited references generally have input openings which have their greatest extent in the direction of thread travel, wherein, as is apparent from DE-OS 1 785 321 or EP 1 207 225 A2, for example, the height of the input opening clearly shows its width surpasses.
  • the clear cross section of the nozzle body which essentially corresponds to the size and shape of the inlet opening, is constant from the inlet opening to an outlet opening in the region of a suction air connection.
  • Has constriction by which its clear cross-sectional area is divided into two sub-areas.
  • the diameter of the suction air nozzle is in the range of
  • DE 38 29 151 A1 discloses suction air nozzles whose nozzle bodies are curved in the axial direction.
  • the clear cross-sectional area has lateral faces, in which the thread strands of a sucked thread loop are to deposit defined.
  • suction air nozzles as they are known from DE 28 02 913 Al or DE 38 29 151 Al, although the problem of knot formation in long thread loops could be somewhat mitigated, but such suction air nozzles still have the disadvantage that in particular long thread loops within the Saug Kunststoffdüse due to lack of suction power or insufficient Saugkraftver whatsoever are not sufficiently stretched.
  • the present invention seeks to develop a Saugluftdüse that ensures that even longer thread loops are always reliably positioned in the Saugluftdüse and thereby stored so that knots or the like can be reliably avoided.
  • This object is achieved by a Saugluftdüse having the features described in claim 1.
  • the embodiment according to the invention of a suction air nozzle with a nozzle body whose light cross-section increases from an inlet opening in the axial direction to an end-side outlet opening has various advantages.
  • the resulting excess yarn is sucked in as a thread loop, which is pulled apart with increasing thread length, which significantly reduces the risk of knot formation.
  • the widening thread loop also forms a larger attack surface for the negative pressure flow, which leads to a very stable positioning of the thread loop in the suction air nozzle and thus to a sufficient thread tension.
  • the thread strands of the thread loop run, although acted upon by a relatively large suction force, thread-saving in the edge regions of the nozzle body.
  • the continuous, significant increase in the clear cross section of the edge regions leads to a calming of the suction air flow in these areas, with the result that the thread strands of the sucked thread loop run relatively gently along the walls of the edge regions.
  • tubular edge portions extend in the direction of the outlet opening of the nozzle body towards diverging.
  • Such a design leads to a continuous enlargement of the clear cross section of the central region of the nozzle body, which has a positive effect on both the receiving volume of the suction air nozzle and on the suction force acting on the thread.
  • a guide contour is arranged with side walls, between which the thread runs.
  • the side walls are curved outwards at the front.
  • the guide contour ensures that the thread which runs during the regular spinning operation, that is, while the yarn is manufactured in the spinning device on the winding device to a cross-wound bobbin, slightly spaced from the inlet opening of the Saug Kunststoffdüse, if necessary, that is, during the run-up of the job is safely sucked into the suction air nozzle.
  • FIG. 1 shows a workstation of an open-end spinning machine with a suction-air nozzle according to the invention for temporarily storing a thread loop
  • FIG. 3 shows the suction air nozzle in cross section, according to section III-III of FIG. 2,
  • FIG. 4 shows the suction air nozzle in cross section, according to section IV-IV of Fig. 2nd
  • FIG. 1 shows a perspective view of a generally designated by the reference numeral 1 point of an open-end
  • Such jobs 1, as is known, a variety of working components that allow the production of a thread 9 and the production of a cheese 8.
  • such jobs have one
  • the winding device 3 itself consists, as indicated in Fig. 1, of a creel 22 for rotatably supporting a cross-wound bobbin 8, preferably via a reversible single drive 31 drivable drive drum 23 and a Fadenchangier rally 24, which is driven for example via a stepper motor 32.
  • a yarn centering device in the form of a pivotally mounted centering plate 17 is also arranged in front of the Fadenchangier Anlagen 24, which can be folded when needed, that is, when re-spinning, defined by a drive 33 in the regular yarn path.
  • each of the work stations 1 may also be equipped with a paraffin device 37.
  • Such work stations 1 have a pivotally mounted suction air nozzle 4, which is adjustable by means of a stepping motor 6 between a thread receiving position lying in the region of the winding device 3 and a yarn transfer position lying in the region of the spinning device 2.
  • Each of the work stations 1 also has a workstation computer 25, which controls the various drives of the workstation, a thread monitor 26, which monitors the correct presence of the thread 9 during spinning, a mechanical thread storage device 35, which is acted upon by an electric drive 34 and a pneumatic working thread storage device 36 on.
  • the pneumatically operating thread storage device 36 is designed as a vacuum nozzle 5 which can be pressurized with negative pressure and which, as indicated in FIG. 1, preferably on a connecting piece 28 of a machine-long vacuum channel 30 is fixed, which in turn is connected to a (not shown) vacuum source.
  • FIG. 2 shows the suction-air nozzle 5 according to the invention, which is made, for example, by injection molding or blow-molding from plastic, in a side view and in a larger scale relative to FIG.
  • Saug Kunststoffdüse 5 consists of a
  • Nozzle body 12 which has an inlet opening 7 at the front and an outlet opening 10 at the end.
  • a guide contour 19 is also arranged, the side walls 20, 21 of which are curved slightly outwards in the front region.
  • the nozzle body 12 itself has, as shown in Figures 3 and 4, a central region 13 arranged in parallel
  • the tubular edge regions 16, 18 of the nozzle body 12 extend in the direction of the outlet opening 10 in a diverging manner, wherein at the same time, as shown in FIGS. 3 and 4, their clear cross-section QR increases.
  • the clear cross section of the edge regions 16, 18 is for example QR1, during which the clear cross section of the edge regions 16, 18 in the region of the section IV-IV is greater and, for example, QR2.
  • the clear cross section in the middle region 13 also increases somewhat.
  • the clear total cross-section Q of the suction air 5 is smallest in the region of its inlet opening 7 and continuously increases toward the outlet opening 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Looms (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Metal Extraction Processes (AREA)

Abstract

L'invention concerne une buse d'air d'aspiration (5) pour une machine textile destinée à stocker une longueur de fil provenant d'un fil en mouvement qui passe à travers l'ouverture de la buse, comprenant un corps de buse allongé présentant une section transversale interne (QR) qui présente, dans la région de son axe longitudinal central (11), une largeur inférieure à celle des régions de bord (16, 18) se présentant sous la forme de tubes, ainsi qu'un orifice d'entrée qui présente sa plus grande largeur dans le sens d'avancée du fil. Selon l'invention, la section transversale intérieure (Q) du corps de buse (12) de la buse d'air d'aspiration (5) augmente de l'ouverture d'entrée (7) du corps de buse (12) dans la direction axiale jusqu'à une ouverture de sortie (10) du côté de l'extrémité.
EP06829022.0A 2005-11-23 2006-11-13 Buse d'air d'aspiration pour une machine textile Active EP1954617B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005055717A DE102005055717A1 (de) 2005-11-23 2005-11-23 Saugluftdüse für eine Textilmaschine
PCT/EP2006/010856 WO2007059877A1 (fr) 2005-11-23 2006-11-13 Buse d'air d'aspiration pour une machine textile

Publications (2)

Publication Number Publication Date
EP1954617A1 true EP1954617A1 (fr) 2008-08-13
EP1954617B1 EP1954617B1 (fr) 2014-01-08

Family

ID=37671081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06829022.0A Active EP1954617B1 (fr) 2005-11-23 2006-11-13 Buse d'air d'aspiration pour une machine textile

Country Status (7)

Country Link
US (1) US7681389B2 (fr)
EP (1) EP1954617B1 (fr)
CN (1) CN101309848B (fr)
BR (1) BRPI0618757A2 (fr)
DE (1) DE102005055717A1 (fr)
RU (1) RU2420447C2 (fr)
WO (1) WO2007059877A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009018672B4 (de) 2008-06-21 2019-10-17 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren zum Betreiben einer Arbeitsstelle einer Offenend-Rotorspinnmaschine und zugehörige Arbeitsstelle
DE102008056288A1 (de) 2008-11-08 2010-05-12 Oerlikon Textile Gmbh & Co. Kg Verfahren zum Betreiben einer Offenend-Spinnmaschine und Offenend-Spinnmaschine
JP2012218922A (ja) * 2011-04-13 2012-11-12 Murata Machinery Ltd 糸巻取機及び糸引き出し方法
CN102581578B (zh) * 2012-03-28 2014-08-13 常州布拉迪纺织机械有限公司 自络机专用大吸嘴制造方法
DE102016119983A1 (de) * 2016-10-20 2018-04-26 Maschinenfabrik Rieter Ag Pneumatisches Fadenspeicherorgan, Arbeitsstelle einer Textilmaschine mit einem Fadenspeicherorgan und Textilmaschine mit einer Vielzahl von Arbeitsstellen mit einem Fadenspeicherorgan
DE102019103193A1 (de) * 2019-02-08 2020-08-13 Saurer Spinning Solutions Gmbh & Co. Kg Fadenspeicherrohr für eine Arbeitsstelle einer Textilmaschine sowie Arbeitsstelle einer Textilmaschine

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NL69337C (fr) * 1948-12-04
NL75632C (fr) * 1950-07-10
DE1785321A1 (de) * 1968-09-11 1971-06-24 Karlsruhe Augsburg Iweka Verfahren und Vorrichtung zum Ausgleich der beim Aufspulen textiler Faeden auf Spulen auftretenden Fadenspannungsunterschiede
DE2221316B1 (de) * 1972-04-29 1973-09-13 Skf Kugellagerfabriken Gmbh Vorrichtung zum Zwischenspeichern einer ueberschuessigen Fadenlaenge an einer Offen-End-Spinnmaschine
DE2540703A1 (de) * 1975-09-12 1977-03-17 Schubert & Salzer Maschinen Verfahren und vorrichtung zum beseitigen einer unregelmaessigkeit in einem auf die spule einer offen-end-spinnvorrichtung aufzuwickelnden faden
JPS5949332B2 (ja) * 1976-06-25 1984-12-01 村田機械株式会社 紡糸を止めずに糸継する方法
DE2802913B1 (de) 1978-01-24 1978-11-09 Schubert & Salzer Maschinen Saugluftduese zur Bildung einer Fadenreserve
DE2939644C2 (de) * 1979-09-29 1982-10-14 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Verfahren und Vorrichtung zur Beseitigung einer Unregelmäßigkeit am laufenden Faden an einer Offenend-Spinnstelle während des Spinnens
US4372503A (en) * 1980-10-23 1983-02-08 King Instrument Corporation Flexible tape control apparatus
JPH0733204B2 (ja) * 1987-09-07 1995-04-12 東レエンジニアリング株式会社 糸条貯留装置
DE3829151A1 (de) * 1988-08-27 1990-03-01 Fritz Stahlecker Vorrichtung zum zwischenspeichern eines fadens an einer spinnmaschine
DE3932666C2 (de) * 1989-03-22 2000-12-28 Rieter Ag Maschf Verfahren zum Betrieb einer Spinnmaschine, insbesondere Ringspinnmaschine, sowie Bedienroboter zur Durchführung des Verfahrens
DE4027210A1 (de) * 1990-08-29 1992-03-05 Fritz Stahlecker Spinnmaschine mit einer vielzahl von spinnstellen und mit einer vorrichtung zum beheben eines fadenbruches
FR2667581B1 (fr) 1990-10-09 1992-10-16 Devtex Dispositif pour la formation d'une reserve de fil sur une machine textile.
FR2668137B1 (fr) * 1990-10-23 1992-12-18 Devtex Procede et dispositif pour la formation d'une reserve de fil sur une machine textile.
EP1207225B2 (fr) * 2000-11-16 2011-08-31 Murata Kikai Kabushiki Kaisha Métier à filer
DE10139078A1 (de) * 2001-08-09 2003-02-20 Schlafhorst & Co W Verfahren und Vorrichtung zum Wiederanspinnen einer Offenend-Spinnmaschine
DE10139075A1 (de) * 2001-08-09 2003-02-20 Schlafhorst & Co W Offenend-Rotorspinnmaschine
DE10139074B4 (de) * 2001-08-09 2009-11-12 Oerlikon Textile Gmbh & Co. Kg Offenend-Rotorspinnmaschine
EP1441053B1 (fr) 2001-10-01 2009-09-09 Toray Industries, Inc. Procede pour fabriquer un tissu a fibres de renforcement, dispositif de fabrication associe et tissu a fibres de renforcement

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Title
See references of WO2007059877A1 *

Also Published As

Publication number Publication date
RU2420447C2 (ru) 2011-06-10
RU2008124802A (ru) 2009-12-27
BRPI0618757A2 (pt) 2011-09-13
US7681389B2 (en) 2010-03-23
EP1954617B1 (fr) 2014-01-08
CN101309848A (zh) 2008-11-19
DE102005055717A1 (de) 2007-05-24
CN101309848B (zh) 2012-04-25
US20090120053A1 (en) 2009-05-14
WO2007059877A1 (fr) 2007-05-31

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