EP3257980A1 - Tuyère de sortie de fil pour un dispositif de tissage ouvert - Google Patents

Tuyère de sortie de fil pour un dispositif de tissage ouvert Download PDF

Info

Publication number: EP3257980A1
Authority: EP; European Patent Office
Prior art keywords: nozzle; yarn; holder; insert; nozzle holder
Prior art date: 2016-05-25
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

EP17169611.5A

Other languages

German (de)

English (en)

Other versions

EP3257980B1 (fr

Inventor

Bernd Loos

Frank Riedel

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.)

Rieter Ingolstadt GmbH

Original Assignee

Rieter Ingolstadt GmbH

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.)

2016-05-25

Filing date

2017-05-05

Publication date

2017-12-20

2017-05-05 Application filed by Rieter Ingolstadt GmbH filed Critical Rieter Ingolstadt GmbH

2017-12-20 Publication of EP3257980A1 publication Critical patent/EP3257980A1/fr

2021-09-08 Application granted granted Critical

2021-09-08 Publication of EP3257980B1 publication Critical patent/EP3257980B1/fr

Status Active legal-status Critical Current

2037-05-05 Anticipated expiration legal-status Critical

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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
- D01H4/40—Removing running yarn from the yarn forming region, e.g. using tubes
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/04—Devices for imparting false twist

Definitions

the present invention relates to a yarn draw-off nozzle for an open-end spinning device with a nozzle insert for deflecting a produced yarn and with a nozzle holder, by means of which the yarn draw-off nozzle can be fixed in the open-end spinning device.
the nozzle holder has a cylindrical shaft.
Thread withdrawal nozzles for open-end spinning devices have become known in the prior art in many designs.
the yarn withdrawal nozzles have the task to redirect the spun yarn when deducted from the spinning device and to give the withdrawn yarn while doing a false twist.
the spinning stability can be substantially increased and a uniform yarn can be produced.
the yarn runs at the trigger due to the rotation of the spinning rotor crank-like on the Garnumlenk Chemistry the yarn take-off, so that it comes to the yarn withdrawal nozzles to a relatively high temperature stress and wear, which can adversely affect the spinning process.
the shaft of the take-off nozzle or the nozzle holder is provided with a thread, so that the thread take-off nozzle can be screwed into the open-end spinning device .
a yarn withdrawal nozzle is for example in the DE 103 30 767 A1 shown.
Such thread withdrawal nozzles have basically proven, but have a comparatively large amount of space.
thread withdrawal nozzles have already been proposed which manage without a nozzle holder.
the EP 1 445 359 B1 also shows a vent nozzle, which manages without nozzle socket.
the channel plate adapter which receives the nozzle, in this case is at least partially made of a plastic material and has a clip closure and centering members for receiving the thread withdrawal nozzle.
the existing only one nozzle insert yarn withdrawal nozzle can be clipped into the made of a plastic material channel plate adapter. The replacement of the nozzle is thus easily possible, however, it could cause damage to the clip device.
a disadvantage of the two last-mentioned yarn withdrawal nozzles is that in each case separate molds for the production of yarn withdrawal nozzles made of ceramic are required to o.ä. for pressing or clipping in to be able to attach the open-end spinning device. However, this is only profitable for very large quantities.
Object of the present invention is therefore to provide a yarn withdrawal nozzle, which has a small footprint and is inexpensive to produce.
a yarn withdrawal nozzle for an open-end spinning device has a nozzle insert for deflecting a produced yarn and a nozzle holder, by means of which the yarn draw-off nozzle can be fastened in the open-end spinning device.
the nozzle holder has a cylindrical shaft. It is provided that the shaft of the nozzle holder is provided with a centering diameter and that the cylindrical shaft of the nozzle holder is shorter than half the centering diameter.
the length of the shaft is understood to mean the extent of the shaft in the direction of the axis of the cylinder.
the nozzle holder consists of a metallic material, in particular a steel or an aluminum material.
a metallic material of the nozzle holder By the metallic material of the nozzle holder, a particularly good heat dissipation can be achieved by the thread take-off nozzle to the open-end spinning, which is not possible with a completely made of a ceramic material nozzle.
the nozzle insert is protected by the nozzle holder made of a metallic material from damage, especially during handling.
the heat dissipation from the yarn draw-off nozzle can be further improved if the nozzle holder has a flat nozzle bottom.
the nozzle bottom forms another contact surface with the open-end spinning device and thereby improves the heat dissipation.
the nozzle bottom of the nozzle holder gives a high stability, so that damage to the Fadenabzugsdüse can be avoided in their attachment in the open-end spinning or even during handling.
the nozzle holder consists of a ferromagnetic material, in particular a steel material, or has a ferromagnetic insert.
the yarn draw-off nozzle can thus be fixed by magnetic forces in the open-end spinning device, so that the cylindrical shaft of the nozzle holder only serves to center the yarn draw-off nozzle in the open-end spinning device and no longer to fasten the yarn draw-off nozzle.
the shaft can therefore be made very short and, for example, only have a length of 3 mm or less.
Fadenabzugsdüse by means of a fastening means, for example one or more setscrews in the open-end spinning device.
the attachment by means of a threaded pin requires only a very small Required space, so that the shaft of the nozzle holder can be made very short.
the shaft of the nozzle holder has a recess for receiving a tip of a fastening means.
the yarn draw-off nozzle can thereby be fixed particularly well in the open-end spinning device.
such a recess also allows a positioning of the yarn withdrawal nozzle in its circumferential direction, if this has an asymmetric structure.
the nozzle insert consists of a ceramic material. This is particularly wear-resistant and offers great freedom in the design of surface structures of the nozzle insert, which are to introduce a false twist in the yarn. Such surface structures may for example be designed as notches or spirals.
the ceramic material has a high wear resistance and provides a smooth surface.
the nozzle insert is glued into the nozzle holder.
the preparation of the thread take-off nozzle is thereby particularly simple and inexpensive to implement.
the nozzle holder has an annular, perpendicular to a peripheral surface of the cylindrical shaft oriented adhesive surface, which corresponds to an annular adhesive surface of the nozzle insert.
an adhesive surface can be provided, for example, in the form of an annular, stepped elevation on the nozzle holder or in the form of a stepped depression on the nozzle insert.
the nozzle base or an upper edge of the nozzle base facing the nozzle insert is arranged at a distance from a lower edge of the nozzle insert. This design contributes to a defined, flat contact between the nozzle holder and the nozzle insert in the region of the adhesive surface.
an outer diameter of the yarn draw-off nozzle is less than 18 mm, preferably less than 16 mm and particularly preferably less than 14 mm. This contributes to the fact that the thread take-off nozzle has a very small footprint and therefore can be used easily even in very small spinning rotors with a diameter of 26 mm and below.
FIG. 1 shows a schematic sectional view of a spinning rotor 13 and a Fadenabzugsdüse 1 in an open-end spinning device 2 shown only partially.
a cover member 14 is shown, which closes a rotor housing 18 shown here only aborted in operation of the open-end spinning device 2.
the open-end spinning apparatus 2 further has a spinning rotor 13 revolving at high speed in a known manner, in which a spinning material dissolved in individual fibers is fed via a fiber feeding channel 19 (dashed line).
the fiber feed channel 19 leads through the lid member 14 and ends in a protruding into the opening of the spinning rotor 13 extension of the lid member.
the extension projecting into the opening of the spinning rotor 13 can also be arranged on a channel plate adapter that can be exchangeably fixed in the cover element 14.
the fiber material to be fed is incorporated due to the rotation of the spinning rotor 13 in the end of the already spun yarn 5, so that the yarn 5 continuously withdrawn from the spinning rotor 13 via the yarn draw 1 and a Garnabzugskanal 16 of the lid member 14. Due to the rotation of the spinning rotor 3, the yarn end reaching into the rotor groove 17 runs around like a crank and passes over a yarn deflection surface of the yarn draw-off nozzle 1. The yarn draw-off nozzle 1 is therefore exposed to considerable thermal loads and to an abrasive action of the yarn 5.
the yarn withdrawal nozzle 1 is also on the projecting into the interior of the spinning rotor 13 extension of the cover member 14 (or a Duct plate adapters). To insert the yarn withdrawal nozzle 1 in the cover member 14, this has a correspondingly shaped receptacle 15.
FIG. 2 shows a sectional detail view of a yarn draw-off nozzle 1 according to a first embodiment.
the yarn draw-off nozzle 1 is designed in two parts with a nozzle holder 4 and a nozzle insert 3, which in the present case are connected to one another by gluing.
the nozzle holder has for this purpose a to a shaft 6 of the nozzle holder 4 vertically oriented adhesive surface 11 a in the form of an annular shoulder, which corresponds to a provided in the form of an annular, stepped recess bonding surface 11 b of the nozzle insert.
FIG. 2 removable, while the nozzle insert 3 and the nozzle holder 4 are designed such that they are only on the adhesive surfaces 11 a and 11 b in contact with each other.
the nozzle insert 3 is preferably designed in a conventional manner as a ceramic insert and is therefore particularly resistant to wear. Furthermore, the implementation of the nozzle insert 3 made of a ceramic material in a simple manner allows the introduction of surface structures 20 such as notches or spirals, which improve the technological effect of the yarn draw-off nozzle 1.
the nozzle holder 4 is made of a metallic material, in particular a steel material, and thereby enables a good heat dissipation of the resulting temperature in the nozzle insert 3 to the open-end spinning device 2.
a metallic material in particular a steel material
the nozzle holder 4 has for this purpose also a ring-shaped contact surface 21, which cooperates with permanent magnets of the open-end spinning device, not shown here.
the shaft 6 of the nozzle holder 4 thus no longer serves to attach the yarn draw-off nozzle 1 in the open-end spinning device and can therefore be made particularly short.
the shaft 6 merely serves to center the yarn withdrawal nozzle in the open-end spinning device 2 and is provided with a centering diameter ZD for this purpose.
the length L of the shaft 6, which extends between the annular abutment surface 21 and a lower edge 22 of the nozzle holder 4, can therefore be reduced to a minimum and is shorter than half the centering diameter ZD.
the yarn withdrawal nozzle can be made particularly compact with only a small footprint and thus can be accommodated easily in the cover member 14 and in a channel plate adapter even with very small spinning rotors with a diameter of 26 mm and below. It is furthermore particularly advantageous if the outer diameter AD, which in the present case also corresponds to a head diameter of the yarn withdrawal nozzle 1, is likewise made particularly small and, for example, is less than 16 mm.
the present yarn withdrawal nozzle 1 is particularly inexpensive to produce, since conventional ceramic nozzle inserts 3 can be easily used by the previously known yarn withdrawal nozzles. It is furthermore particularly advantageous in the case of the yarn draw-off nozzle 1 that, owing to the annular contact surface 21, it can be positioned very precisely with respect to its position or its distance from the rotor groove 17, since tilting can be largely ruled out.
FIG. 3 shows another embodiment of a yarn withdrawal nozzle 1, which can also be fixed by means of a magnetic attachment in the open-end spinning device 2.
a yarn withdrawal nozzle 1 which can also be fixed by means of a magnetic attachment in the open-end spinning device 2.
FIG. 3 shows another embodiment of a yarn withdrawal nozzle 1, which can also be fixed by means of a magnetic attachment in the open-end spinning device 2.
the same components with the same reference numerals at the thread withdrawal nozzle 1 of FIG. 2 Mistake. The following is therefore only on the differences from the execution of FIG. 2 received.
the yarn withdrawal 1 according to the FIG. 3 has for ferromagnetic attachment to a ferromagnetic insert 8, which may for example be designed annular or by at least two, arranged on opposite sides, separate inserts 8 may be formed. It is therefore not necessary to produce the nozzle holder 4 from a steel material, but it can be used regardless of the magnetic properties of a material having a particularly good thermal conductivity, for example, an aluminum material.
the connection between the nozzle insert 3 and the nozzle holder 4 can be done as described above by means of an adhesive bond on the adhesive surfaces 11 a and 11 b.
the thread take-off nozzles 1 and the nozzle holders 4 of the FIGS. 2 and 3 both a nozzle plate 7, which encloses the nozzle insert 3 of the thread take-off nozzle on its underside, which faces away from the spinning rotor 13 during operation.
the nozzle bottom 7 gives the nozzle holder 4 a high stability and protects it from damage.
the nozzle bottom 7 provides with its underside another contact surface for a heat-conducting contact with the open-end spinning device 2, in particular in FIG FIG. 1 recognizable.
the heat dissipation of such Yarn take-off nozzle to the open-end spinning device 2 is therefore particularly good and overheating on the surface of the nozzle insert 3 can therefore be avoided.
FIG. 4 shows a further embodiment of a yarn withdrawal nozzle 1, which is not magnetically, but by means of a threaded pin (not shown) in the open-end spinning device 2 is attached.
the cover element 14 is provided with a threaded bore 10 into which the threaded pin can be inserted, thereby fixing the yarn withdrawal nozzle 1 via the shaft 6 of the nozzle holder 4 in the cover element 14.
the yarn draw-off nozzle 1 can hereby be fixed particularly well and, if necessary, also be positioned with respect to its circumferential direction in the open-end spinning device 2.
FIG. 5 shows a further embodiment of a yarn draw-off nozzle 1, wherein the nozzle holder 4 has no nozzle bottom 7.
the thread take-off nozzle 1 can, as described above, both with a magnetic attachment as well as be fixed by means of a threaded pin in the cover member 14 and may continue also have adhesive surfaces 11a, 11 b.
Such a yarn withdrawal nozzle 1 without nozzle bottom 7 is particularly suitable for a magnetic attachment, since in this no high forces on the shaft 6 of the nozzle holder 4 act.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Textile Engineering (AREA)
Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Looms (AREA)
Spinning Or Twisting Of Yarns (AREA)

EP17169611.5A 2016-05-25 2017-05-05 Tuyère de sortie de fil pour un dispositif de tissage ouvert Active EP3257980B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102016109687.3A DE102016109687A1 (de)	2016-05-25	2016-05-25	Fadenabzugsdüse für eine Offenendspinnvorrichtung

Publications (2)

Publication Number	Publication Date
EP3257980A1 true EP3257980A1 (fr)	2017-12-20
EP3257980B1 EP3257980B1 (fr)	2021-09-08

Family

ID=58671487

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP17169611.5A Active EP3257980B1 (fr)	2016-05-25	2017-05-05	Tuyère de sortie de fil pour un dispositif de tissage ouvert

Country Status (4)

Country	Link
US (1)	US10544522B2 (fr)
EP (1)	EP3257980B1 (fr)
CN (1)	CN107435173B (fr)
DE (1)	DE102016109687A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102015119112A1 (de) *	2015-11-06	2017-05-11	Maschinenfabrik Rieter Ag	Fadenabzugsdüse mit radial zur Düsenbohrung verlaufenden Kerben
DE102020133359A1 (de)	2020-12-14	2022-06-15	Saurer Spinning Solutions Gmbh & Co. Kg	Multifunktionsdüse für eine Spinnmaschine
DE102022114064A1 (de) *	2022-06-03	2023-12-14	Saurer Spinning Solutions Gmbh & Co. Kg	Fadenabzugsdüse sowie Offenend-Spinnvorrichtung mit einer Fadenabzugsdüse

Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS49112925U (fr) *	1973-02-12	1974-09-26
DE2333401A1 (de) *	1973-06-30	1975-01-16	Krupp Gmbh	Garnabzugsrohr fuer das offen-endspinnverfahren
DE3729425A1 (de) *	1987-02-19	1988-09-01	Fritz Stahlecker	Vorrichtung zum oe-rotorspinnen
DE19906111A1 (de) *	1999-02-13	2000-10-05	Felix Backmeister	Faden-Abzugsdüse in einer Open-End-Spinnmaschine
DE10330767A1 (de)	2003-07-07	2005-02-10	Rieter Ingolstadt Spinnereimaschinenbau Ag	Fadenberührendes Bauteil von Spinnmaschinen
EP1445359B1 (fr)	2003-02-08	2010-10-13	Oerlikon Textile GmbH & Co. KG	Adaptateur de plaque de canalisation pour un dispositif de filature à bout libre
EP1367154B2 (fr)	2002-05-31	2012-06-27	Oerlikon Textile GmbH & Co. KG	Adaptateur de plaque de canalisation pour un dispositif de filature open-end

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH420934A (de) *	1964-11-25	1966-09-15	Elitex Zavody Textilniho	Kontinuierliche Zentrifugalspinnvorrichtung
JPS49132329A (fr) *	1973-04-21	1974-12-19
US4854119A (en) *	1987-02-19	1989-08-08	Fritz Stahlecker	Arrangement for open-end rotor spinning
US5265406A (en) *	1990-03-09	1993-11-30	Schubert & Salzer Maschinenfabrik Ag	Open-end spinning device
DE10326847A1 (de) *	2003-03-19	2004-09-30	Saurer Gmbh & Co. Kg	Aufnahmeelement für eine Fadenabzugsdüse einer Offenend-Rotorspinnvorrichtung
EP1606440A1 (fr)	2003-03-19	2005-12-21	Saurer GmbH & Co. KG	Element de reception pour une buse de devidage de fil d'un dispositif de filature a rotor a bouts ouverts
US6886322B2 (en) *	2003-07-16	2005-05-03	W. Schlafhorst Ag & Co.	Yarn withdrawal nozzle
DE102004013828B4 (de) *	2004-03-15	2007-03-15	Wilhelm Stahlecker Gmbh	Garnabzugsdüse für eine Offenend-Rotorspinnvorrichtung
DE102004044101A1 (de) *	2004-09-06	2006-03-09	Wilhelm Stahlecker Gmbh	Garnabzugsdüse für eine Offenend-Rotorspinnvorrichtung
DE102005018296A1 (de) *	2005-04-15	2006-10-19	Wilhelm Stahlecker Gmbh	Unterlegscheibe für eine Fadenabzugsdüse einer Offenend-Rotorspinnvorrichtung

2016
- 2016-05-25 DE DE102016109687.3A patent/DE102016109687A1/de not_active Withdrawn
2017
- 2017-05-05 EP EP17169611.5A patent/EP3257980B1/fr active Active
- 2017-05-19 CN CN201710358718.1A patent/CN107435173B/zh active Active
- 2017-05-24 US US15/603,569 patent/US10544522B2/en active Active

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS49112925U (fr) *	1973-02-12	1974-09-26
DE2333401A1 (de) *	1973-06-30	1975-01-16	Krupp Gmbh	Garnabzugsrohr fuer das offen-endspinnverfahren
DE3729425A1 (de) *	1987-02-19	1988-09-01	Fritz Stahlecker	Vorrichtung zum oe-rotorspinnen
DE19906111A1 (de) *	1999-02-13	2000-10-05	Felix Backmeister	Faden-Abzugsdüse in einer Open-End-Spinnmaschine
EP1367154B2 (fr)	2002-05-31	2012-06-27	Oerlikon Textile GmbH & Co. KG	Adaptateur de plaque de canalisation pour un dispositif de filature open-end
EP1445359B1 (fr)	2003-02-08	2010-10-13	Oerlikon Textile GmbH & Co. KG	Adaptateur de plaque de canalisation pour un dispositif de filature à bout libre
DE10330767A1 (de)	2003-07-07	2005-02-10	Rieter Ingolstadt Spinnereimaschinenbau Ag	Fadenberührendes Bauteil von Spinnmaschinen

Also Published As

Publication number	Publication date
US20170342605A1 (en)	2017-11-30
CN107435173A (zh)	2017-12-05
CN107435173B (zh)	2021-12-10
DE102016109687A1 (de)	2017-11-30
EP3257980B1 (fr)	2021-09-08
US10544522B2 (en)	2020-01-28

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