EP1954617B1 - Buse d'air d'aspiration pour une machine textile - Google Patents

Buse d'air d'aspiration pour une machine textile Download PDF

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Publication number
EP1954617B1
EP1954617B1 EP06829022.0A EP06829022A EP1954617B1 EP 1954617 B1 EP1954617 B1 EP 1954617B1 EP 06829022 A EP06829022 A EP 06829022A EP 1954617 B1 EP1954617 B1 EP 1954617B1
Authority
EP
European Patent Office
Prior art keywords
suction air
air nozzle
thread
nozzle body
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.)
Active
Application number
EP06829022.0A
Other languages
German (de)
English (en)
Other versions
EP1954617A1 (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
Saurer Germany 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
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Application filed by Saurer Germany GmbH and Co KG filed Critical Saurer Germany GmbH and Co KG
Publication of EP1954617A1 publication Critical patent/EP1954617A1/fr
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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 temporarily occurring during startup of the jobs excess yarn and deliver it successively to the winding device of the relevant job.
  • a suction nozzle is positioned in which in the direction of yarn travel, just before the winding device, close to the regular yarn path.
  • the Saug Kunststoffdüse 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. That is, the suction air nozzle ensures that the thread is always wound with a sufficiently large thread tension on a winding device.
  • Both the mobile control unit and the work stations of the air-spinning machine are each equipped with suction air nozzles.
  • suction air nozzles As a result of the suction-air nozzle arranged in the area of the work stations, the thread excess which occurs when such work stations are raised should, as already mentioned above, be temporarily stored temporarily.
  • a similar Saug Kunststoffdüse for temporarily receiving a relatively large amount of thread is also in the DE-AS 22 21 316 described using the example of an open-end spinning machine or in the EP 1 207 225 A2 showing the use of such a suction nozzle on an air-jet spinning machine.
  • the suction air nozzles described in the aforementioned references generally have input openings which have their greatest extent in the direction of thread travel, wherein, as for example from DE-OS 1 785 321 or the EP 1 207 225 A2 can be seen, the height of the entrance opening significantly exceeds its width.
  • 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.
  • a suction air nozzle is described, the nozzle body has a constriction over its entire length, through which its clear cross-sectional area is divided into two sub-areas.
  • the diameter of the suction air nozzle is in the region of the constriction only about half as large as in the region of the two partial surfaces.
  • suction air nozzles As through the DE 28 02 913 A1 or the DE 38 29 151 A1 Although the problem of knot formation in long thread loops can be somewhat alleviated, such suction air nozzles still have the disadvantage that, in particular, long thread loops within the suction air nozzle are not sufficiently securely tensioned due to insufficient suction force or insufficient suction force distribution.
  • 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.
  • 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 enlargement of the clear cross section of the nozzle body takes place continuously.
  • Such a continuous enlargement of the clear cross section leads to a very uniform increase in the holding force acting in the suction air nozzle, which has a positive effect on the thread loop. That is, 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.
  • 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.
  • the convex curvature of the side walls ensures that the thread is always guided exactly in front of the inlet opening of the suction air nozzle during the spinning operation.
  • FIG. 1 shows in perspective view a generally designated by the reference numeral 1 working point of an open-end rotor spinning machine.
  • 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 workstations have, for example, an open-end spinning device 2 and a winding device 3.
  • the winding device 3 itself consists, as in Fig. 1 indicated, from a creel 22 for rotatably supporting a cross-wound bobbin 8, a preferably driven by a reversible single drive 31 drive drum 23 and a Fadenchangier Road 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 observed 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 formed according to the invention as a vacuum-pressurized suction air nozzle 5, which, as in Fig. 1 indicated, 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 Saug Kunststoffdüse 5 according to the invention, which is made for example by injection molding or blow molding of plastic, in side view and in a relation to the FIG. 1 larger scale.
  • the suction air nozzle 5 consists of a nozzle body 12 having 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 in the FIGS. 3 and 4 shown, a central region 13 with parallel side walls 14, 15 and tubular edge regions 16, 18 on.
  • the tubular edge portions 16, 18 of the nozzle body 12 extend in the direction of the outlet opening 10 diverging, wherein at the same time, as in the FIGS. 3 and 4 represented, whose light 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 is for example QR2.
  • the clear cross section in the middle region 13 also increases somewhat. That is, 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)
  • Metal Extraction Processes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (7)

  1. Buse à air d'aspiration dévolue à une machine textile en vue d'accumuler une longueur d'un fil en défilement, franchissant l'orifice de ladite buse, munie d'un corps longiligne doté d'une section transversale intérieure (Q) offrant, dans la région de son axe médian longitudinal (11), une largeur moindre que dans ses zones marginales d'une réalisation de type tubulaire, ainsi que d'un orifice d'entrée (7) présentant sa largeur maximale dans la direction de défilement du fil,
    caractérisée par le fait
    que la section transversale intérieure (Q) du corps (12) de ladite buse (5) à air d'aspiration croît, dans le sens axial, en direction d'un orifice extrême de sortie (10) à partir de l'orifice d'entrée (7) dudit corps (12) de la buse.
  2. Buse à air d'aspiration selon la revendication 1, caractérisée par le fait que l'accroissement de la section transversale intérieure (Q) du corps (12) de ladite buse présente une allure continue.
  3. Buse à air d'aspiration selon la revendication 1, caractérisée par le fait que les zones marginales (16, 18) du corps (12) de ladite buse, réalisées en forme de tube, présentent une section transversale (QR) croissant en direction de l'orifice de sortie (10) dudit corps (12) de la buse.
  4. Buse à air d'aspiration selon la revendication 3, caractérisée par le fait que les zones marginales (16, 18) du corps (12) de ladite buse, réalisées en forme de tube, présentent des tracés divergeant en direction de l'orifice de sortie (10) dudit corps (12) de la buse.
  5. Buse à air d'aspiration selon la revendication 1, caractérisée par le fait qu'un profil de guidage (19) est disposé dans la région de l'orifice d'entrée (7) de ladite buse (5) à air d'aspiration.
  6. Buse à air d'aspiration selon la revendication 5, caractérisée par le fait que le profil de guidage (19) comporte des parois latérales (20, 21) entre lesquelles le fil (9) est en défilement.
  7. Buse à air d'aspiration selon la revendication 6, caractérisée par le fait que les parois latérales (20, 21) sont coudées frontalement vers l'extérieur.
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 EP1954617A1 (fr) 2008-08-13
EP1954617B1 true 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3693308A1 (fr) 2019-02-08 2020-08-12 Saurer Spinning Solutions GmbH & Co. KG Tube de stockage de fil pour une poste de travail d'une machine textile ainsi que poste de travail d'une machine textile

Families Citing this family (5)

* 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

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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
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3693308A1 (fr) 2019-02-08 2020-08-12 Saurer Spinning Solutions GmbH & Co. KG Tube de stockage de fil pour une poste de travail d'une machine textile ainsi que poste de travail d'une machine textile
DE102019103193A1 (de) * 2019-02-08 2020-08-13 Saurer Spinning Solutions Gmbh & Co. Kg Fadenspeicherrohr für eine Arbeitsstelle einer Textilmaschine sowie Arbeitsstelle einer Textilmaschine

Also Published As

Publication number Publication date
BRPI0618757A2 (pt) 2011-09-13
RU2420447C2 (ru) 2011-06-10
CN101309848B (zh) 2012-04-25
DE102005055717A1 (de) 2007-05-24
WO2007059877A1 (fr) 2007-05-31
EP1954617A1 (fr) 2008-08-13
US7681389B2 (en) 2010-03-23
US20090120053A1 (en) 2009-05-14
RU2008124802A (ru) 2009-12-27
CN101309848A (zh) 2008-11-19

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