EP0001988B1 - Method and device for threading an advancing strand through a narrow aperture by a gas jet - Google Patents

Method and device for threading an advancing strand through a narrow aperture by a gas jet Download PDF

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Publication number
EP0001988B1
EP0001988B1 EP78101208A EP78101208A EP0001988B1 EP 0001988 B1 EP0001988 B1 EP 0001988B1 EP 78101208 A EP78101208 A EP 78101208A EP 78101208 A EP78101208 A EP 78101208A EP 0001988 B1 EP0001988 B1 EP 0001988B1
Authority
EP
European Patent Office
Prior art keywords
thread
opening
narrow opening
upstream
stream
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.)
Expired
Application number
EP78101208A
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German (de)
French (fr)
Other versions
EP0001988A1 (en
Inventor
Heiko Herold
Richard Herold
Rudolf Dr. Klee
Edgar Dr. Muschelknautz
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.)
Bayer AG
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Bayer AG
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Publication date
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Application filed by Bayer AG filed Critical Bayer AG
Publication of EP0001988A1 publication Critical patent/EP0001988A1/en
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Publication of EP0001988B1 publication Critical patent/EP0001988B1/en
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Classifications

    • 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
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/161—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam yarn crimping air jets
    • 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
    • B65H51/16—Devices for entraining material by flow of liquids or gases, e.g. air-blast devices
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/007—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for two-for-one twisting machines
    • 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 method for the automatic insertion of one or more fast-running threads through a narrow opening, the thread first being passed transversely in front of the opening, being separated in the thread running direction after the opening and being conveyed through the opening with a propellant gas jet acting perpendicularly to the previous thread running direction is and an apparatus for performing the method.
  • the spun fiber In the production of synthetic threads, the spun fiber must pass through treatment devices which have a narrow entrance opening, for example a texturing or a false twist nozzle.
  • the introduction of a thread through the openings mentioned is referred to in the text below as “threading on” the thread, the narrow opening as “nozzle” or “texturing nozzle.”
  • Devices, such as pulling needles or loops, are known with which a thread can be threaded on. It is also known to "shoot" the separated thread running in front of the opening through the opening with a gas jet, but the known devices and methods can only be used if the thread speed is not too high impulse transmitted to the thread does not extend to deflect the thread and the thread becomes tangled in the delivery plant.
  • the gas jet If the gas jet is replaced by a liquid jet, the inside of the nozzle becomes moist and must first be dried by the treatment medium. The nozzle is cooled, and it takes several minutes until the target temperature is reached again in which waste is produced.
  • the invention has for its object to insert threads running at high speed into a narrow opening without thread and device being wetted with liquid.
  • the method should also be applicable if the thread speed is above 3000 m / min.
  • the object is achieved procedurally in that a propellant gas jet, the cross section of which is so large that the jet no longer passes completely through the narrow opening, is blown onto the thread and this jet is split into a central one by an upstream arrangement before the narrow opening Ray that passes through the narrow opening and into rays that are derived in front of the narrow opening.
  • the device for carrying out the method consists in that the arrangement upstream of the narrow opening consists of a thread inlet channel which widens into an annular space, and in the annular space on the side there are bores or channels leading outwards and a nozzle opposite the upstream arrangement is available, from which a propellant gas jet can emerge, the diameter of which in the area of the upstream arrangement is larger than the narrow opening.
  • An arrangement 2 is arranged upstream of the opening 1 of the texturing nozzle. This contains a thread inlet channel 3, which widens into an annular space 4. On the lateral circumference of the annular space 4 there are bores 5 for gas discharge.
  • FIGs 2 and 3 the thread path and the gas flow is shown schematically.
  • the thread 6 runs in front of the thread inlet channel 3.
  • the propellant nozzle 7 is acted upon by propellant gas via the valve 8 and the thread 6 is separated from the thread running direction after the thread inlet channel 3 by any cutting device 9.
  • the thread is transported into the thread inlet channel 3 by the propellant gas flowing out of 7.
  • the driving jet is split up so that a central jet transports the thread 6 into the opening 1 of the texturing nozzle and that part of the driving steel gets out through the lateral bores 5.
  • the (heated) propellant gas is used for thread treatment.
  • the yarn is conveyed further by the inflowing gas.
  • the thread 150 dtex / 34 f has a running speed of 3500 m / min. It is to be applied to a texturing nozzle whose nozzle inlet diameter is 1 mm.
  • the thread inlet channel diameter is 1.3 mm, the diameter of the annular space 2.6 mm at a depth of 2 mm.
  • the marginal jets of the propellant gas are partially discharged through two holes, each 0.8 mm in diameter.
  • the driving nozzle has a diameter of 0.7 mm:
  • the blowing agent is steam with a pre-pressure of 9 bar and a temperature of 230 ° C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Looms (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Description

Die Erfindung betrifft ein Verfahren zum automatischen Einführen eines oder mehrerer schnell laufender Fäden durch eine enge Öffnung, wobei der Faden zunächst quer vor der Öffnung vorbeigeführt wird, in Fadenlaufrichtung nach der Öffnung getrennt wird und mit einem senkrecht zur bisherigen Fadenlaufrichtung wirkenden Treibgasstrahl durch die Öffnung befördert wird und eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for the automatic insertion of one or more fast-running threads through a narrow opening, the thread first being passed transversely in front of the opening, being separated in the thread running direction after the opening and being conveyed through the opening with a propellant gas jet acting perpendicularly to the previous thread running direction is and an apparatus for performing the method.

Bei der Herstellung synthetischer Fäden muß die ersponnene Faser Behandlungsvorrichtungen durchlaufen, die eine enge Eingangsöffnung haben, beispielsweise eine Texturier-oder eine Falschdralldüse. Das Einführen eines Fadens durch die erwähnten Öffnungen wird im nachfolgenden Text als "Anlegen" des Fadens bezeichnet, die enge Öffnung als "Düse" oder 'Texturierdüse". Es sind Vorrichtungen, wie Einziehnadeln oder Schlingen bekannt, mit denen ein Faden angelegt werden kann. Es ist auch bekannt, mit einem Gasstrahl den vor der Öffnung laufenden abgetrennten Faden durch die Öffnung zu "schießen". Mit den bekannten Vorrichtungen und Verfahren läßt sich jedoch nur arbeiten, wenn die Fadengeschwindigkeit nicht zu groß ist. Bei höheren Fadengeschwindigkeiten reicht der vom Gasstrahl auf den Faden übertragene Impuls nicht aus, um den Faden umzulenken, und der Faden verwickelt sich im Lieferwerk. Wird der Gasstrahl durch einen Flüssigkeitsstrahl ersetzt, wird die Düse innen feucht und muß erst durch das Behandlungsmedium getrocknet werden. Es wird dabei die Düse abgekühlt, und bis zur Wiedererreichung der Solltemperatur vergehen mehrere Minuten, in denen Abfall produziert wird.In the production of synthetic threads, the spun fiber must pass through treatment devices which have a narrow entrance opening, for example a texturing or a false twist nozzle. The introduction of a thread through the openings mentioned is referred to in the text below as "threading on" the thread, the narrow opening as "nozzle" or "texturing nozzle." Devices, such as pulling needles or loops, are known with which a thread can be threaded on. It is also known to "shoot" the separated thread running in front of the opening through the opening with a gas jet, but the known devices and methods can only be used if the thread speed is not too high impulse transmitted to the thread does not extend to deflect the thread and the thread becomes tangled in the delivery plant. If the gas jet is replaced by a liquid jet, the inside of the nozzle becomes moist and must first be dried by the treatment medium. The nozzle is cooled, and it takes several minutes until the target temperature is reached again in which waste is produced.

Der Erfindung liegt die Aufgabe zugrunde, mit hoher Geschwindigkeit laufende Fäden in eine enge Öffnung einzuführen, ohne daß Faden und Vorrichtung mit Flüssigkeit benetzt werden. Das Verfahren soll auch anwendbar sein, wenn die Fadengeschwindigkeit über 3000 m/min leigt.The invention has for its object to insert threads running at high speed into a narrow opening without thread and device being wetted with liquid. The method should also be applicable if the thread speed is above 3000 m / min.

Die Aufgabe wird verfahrensmäßig dadurch gelöst, daß ein Treibgasstrahl, dessen Querschnitt so groß ist, daß der Strahl nicht mehr vollständig durch die enge Öffnung gelangt, auf den Faden gebiasen wird und dieser Strahl vor der engen Offnung durch eine vorgeschaltete Anordnung aufgespalten wird in einen zentralen Strahl, der durch die enge Öffnung gelangt, und in Strahlen, die vor der engen Öffnung abgeleitet werden.The object is achieved procedurally in that a propellant gas jet, the cross section of which is so large that the jet no longer passes completely through the narrow opening, is blown onto the thread and this jet is split into a central one by an upstream arrangement before the narrow opening Ray that passes through the narrow opening and into rays that are derived in front of the narrow opening.

Mit dieser Erfindung wird erreicht, daß auch Fäden mit einer Abzugsgeschwindigkeit von über 4000 m/min durch enge Öffnungen, wie beispeilsweise durch Texturierdüsen, automatisch transportiert werden können und es ist überraschend, daß der Faden sicher in die Düse gelangt und nicht in die seitlichen Bohrungen gelangt.With this invention it is achieved that threads with a take-off speed of over 4000 m / min can be automatically transported through narrow openings, for example through texturing nozzles, and it is surprising that the thread arrives safely in the nozzle and not in the lateral bores reached.

Es ist vorteilhaft, wenn zum Anlagen des Fadens in eine Behandlungsvorrichtung das gleiche Fluid verwendet wird, das sich auf gleicher Temperatur befinden soll, wie das zur Garnbehandlung benutzte Fluid.It is advantageous if the same fluid that is to be at the same temperature as the fluid used for the yarn treatment is used to place the thread in a treatment device.

Die Vorrichtung zur Durchführung des Verfahrens besteht darin, dass die der engen Öffnung vorgeschaltete Anordnung aus einem Fadeneinlaufkanal besteht, der sich zu einem Ringraum erweitert, und in dem Ringraum an der Seite nach außen führende Bohrungen oder Kanäle vorhanden sind und eine der vorgeschalteten Anordnung gegenüberstehende Düse verhanden ist, aus der ein Treibgasstrahl austreten kann, dessen Durchmesser im Bereich der vorgeschalteten Anordnung grösser als die enge Öffnung ist.The device for carrying out the method consists in that the arrangement upstream of the narrow opening consists of a thread inlet channel which widens into an annular space, and in the annular space on the side there are bores or channels leading outwards and a nozzle opposite the upstream arrangement is available, from which a propellant gas jet can emerge, the diameter of which in the area of the upstream arrangement is larger than the narrow opening.

Das erfindungsgemäße Verfahren ist im fol-. genden beispielhaft beschrieben und in den Zeichnungen dargestellt. Es zeigen:

  • Fig. 1 einen Längsschnitt durch einen Fadeneinlaufkanal,
  • Fig. 2 Fadenlauf und Gasströmung vor dem Anlegen in einer Texturierdüse,
  • Fig. 3 Fadenlauf und Gasströmung nach dem Anlegen in eine Texturierdüse.
The method according to the invention is as follows. described by way of example and shown in the drawings. Show it:
  • 1 shows a longitudinal section through a thread inlet channel,
  • 2 thread flow and gas flow before application in a texturing nozzle,
  • Fig. 3 thread flow and gas flow after application in a texturing nozzle.

Der Öffnung 1 der Texturierdüse ist eine Anordnung 2 vorgeschaltet. Diese enthält einen Fadenein!aufkanal 3, der sich zu einem Ringraum 4 ertweitert. Am seitlichen Umfang des Ringraumes 4 sind Bohrungen 5 zur Gasableitung vorhanden.An arrangement 2 is arranged upstream of the opening 1 of the texturing nozzle. This contains a thread inlet channel 3, which widens into an annular space 4. On the lateral circumference of the annular space 4 there are bores 5 for gas discharge.

In den Figuren 2 und 3 ist der Fadenlauf und die Gasströmung schematisch dargestellt. Der Faden 6 läuft vor dem Fadeneinlaufkanal 3 vorbei. Für den Anlegevorgang wird die Treibdüse 7 über das Ventil 8 mit Treibgas beaufschlagt und durch eine beliebige Schneidvorrichtung 9 der Faden 6 Fadenlaufrichtung nach dem Fadeneinlaufkanal 3 getrennt. Der Faden wird durch das aus 7 auströmende Treibgas in den Fadeneinlaufkanal 3 transportiert. Im Ringraum 4 wird der Treibstrahl so aufgespalten, daß ein zentraler Strahl den Faden 6 in die Öffnung 1 der Texturierdüse transportiert und daß ein Teil des Treibstahls durch die seitlichen Bohrungen 5 nach außen gelangt.In Figures 2 and 3, the thread path and the gas flow is shown schematically. The thread 6 runs in front of the thread inlet channel 3. For the application process, the propellant nozzle 7 is acted upon by propellant gas via the valve 8 and the thread 6 is separated from the thread running direction after the thread inlet channel 3 by any cutting device 9. The thread is transported into the thread inlet channel 3 by the propellant gas flowing out of 7. In the annular space 4, the driving jet is split up so that a central jet transports the thread 6 into the opening 1 of the texturing nozzle and that part of the driving steel gets out through the lateral bores 5.

In der in Figur 3 dargestellten Arbeitsstellung wird das (erwärmte) Treibgas zur Fadenbehandlung verwendet. Das Garn wird durch das über 10 zuströmende Gas weitergefördert.In the working position shown in Figure 3, the (heated) propellant gas is used for thread treatment. The yarn is conveyed further by the inflowing gas.

Der Faden 150 dtex/34 f hat eine Laufgeschwindigkeit von 3500 m/min. Er ist an eine Texturierdüse anzulegen, deren Düseneinlaufdurchmesser 1 mm beträgt. Der Fadeneinlaufkanaldurchmesser beträgt 1,3 mm, der Durchmesser des Ringraums 2,6 mm bei einer Tiefe von 2 mm. Die teilweise Abführung der Randstrahlen des Treibgases erfolgt durch zwei Bohrungen von je 0,8 mm Durchmesser. Die Treibdüse hat einen Durchmesser von 0,7 mm: Als Treibmittel wird Dampf mit einem Vordruck von 9 bar und einer Temperatur von 230°C eigensetzt.The thread 150 dtex / 34 f has a running speed of 3500 m / min. It is to be applied to a texturing nozzle whose nozzle inlet diameter is 1 mm. The thread inlet channel diameter is 1.3 mm, the diameter of the annular space 2.6 mm at a depth of 2 mm. The marginal jets of the propellant gas are partially discharged through two holes, each 0.8 mm in diameter. The driving nozzle has a diameter of 0.7 mm: As The blowing agent is steam with a pre-pressure of 9 bar and a temperature of 230 ° C.

Claims (3)

1. A method of automatically inserting one or more rapidly running threads through a narrow opening in which the thread is initially guided transversely past the front of the opening, is severed downstream of the opening in the direction of travel of the thread and is conveyed through the opening by a propelling gas stream acting perpendicularly to the former direction of travel of the thread, characterized in that a propelling gas stream, whose cross-section is of such a size that the stream no longer passes completely through the narrow opening, is blown on to the thread and this stream is split up in front of the narrow opening by an arrangement connected upstream into a central stream which passes through the narrow opening and a plurality of streams which are lead off upstream of the narrow opening.
2. A method according to claim 1, characterized in that the same gas is used for placing as is used for treating the thread, which gas is preferably at the same temperature as that used for the treating of the thread.
3. An apparatus for carrying out the method according to claims 1 and 2, characterized in that the arrangement (2) connected upstream of the narrow opening (1) consists of a thread inlet duct (3), which widens into an annular space (4), and outward-leading passages or ducts (5) are provided in the side of the annular space (4) and a nozzle (7) is situated opposite the upstream arrangement (2), from which a propelling gas stream can pass outwards, the diameter of which is larger than the narrow opening (1) in the area of the upstream arrangement (2).
EP78101208A 1977-11-03 1978-10-24 Method and device for threading an advancing strand through a narrow aperture by a gas jet Expired EP0001988B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2749188A DE2749188C2 (en) 1977-11-03 1977-11-03 Device for automatically inserting a high-speed thread into a thread guide channel of a thread treatment device
DE2749188 1977-11-03

Publications (2)

Publication Number Publication Date
EP0001988A1 EP0001988A1 (en) 1979-05-30
EP0001988B1 true EP0001988B1 (en) 1980-07-23

Family

ID=6022921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78101208A Expired EP0001988B1 (en) 1977-11-03 1978-10-24 Method and device for threading an advancing strand through a narrow aperture by a gas jet

Country Status (4)

Country Link
US (1) US4240187A (en)
EP (1) EP0001988B1 (en)
JP (1) JPS5482470A (en)
DE (2) DE2749188C2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2817487C2 (en) * 1978-04-21 1982-12-09 Rieter Deutschland Gmbh, 7410 Reutlingen Device for drawing a running thread into a texturing nozzle
US4519115A (en) * 1978-04-21 1985-05-28 Rieter Machine Works, Ltd. Method of threading a thread into a texturing nozzle
US4412371A (en) * 1981-06-11 1983-11-01 Badische Corporation Device for introducing a traveling yarn into a yarn treatment chamber
EP0084087B1 (en) * 1982-01-15 1986-04-02 Maschinenfabrik Rieter Ag Yarn suction device
US5065928A (en) * 1987-11-25 1991-11-19 Bicc Plc. Method and apparatus for blowing an optical fibre member
DE14172398T1 (en) 2004-10-08 2015-01-08 Forward Pharma A/S Controlled release of pharmaceutical compositions with fumaric acid ester

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US2823631A (en) * 1956-03-08 1958-02-18 Coiner Leonard Tucking assembly for sewing machines
DE1660671A1 (en) * 1965-11-10 1970-12-17 Glanzstoff Ag Device to make changing bobbins easier
US3424359A (en) * 1967-07-17 1969-01-28 Leesona Corp Yarn handling apparatus
US3526024A (en) * 1968-10-16 1970-09-01 Deering Milliken Res Corp Apparatus for treating textile material
BE759801A (en) * 1969-12-04 1971-05-17 Snia Viscosa IMPROVEMENTS MADE TO DEVICES FOR COLLECTING, VACUUMING AND DISPOSING OF TEXTILE FILAMENTS AND THREADS, AS WELL AS THE PERFECTED DEVICES OBTAINED
IE35045B1 (en) * 1970-04-06 1975-10-29 Heathcoat & Co Ltd Method of and apparatus for producing bulked yarns
US3823631A (en) * 1970-05-27 1974-07-16 Ici Ltd Apparatus for stringing a thread through a hole
FR2200834A5 (en) * 1972-09-25 1974-04-19 Rhone Poulenc Textile
DE2339603C3 (en) * 1973-08-04 1978-10-05 Hoechst Ag, 6000 Frankfurt Method for starting injector nozzles and device for carrying out the method
DE2419298B2 (en) * 1974-04-22 1977-09-01 Societe de la Viscose Suisse, Emmenbrücke (Schweiz) METHOD AND DEVICE FOR TAKING UP HIGH-SPEED FADS ON SPINNING DEVICES BY A THREAD TAKING UP DEVICE
US4014085A (en) * 1974-10-24 1977-03-29 Akzona Incorporated String up and shutdown process for a yarn texturizing apparatus
US4051581A (en) * 1975-06-06 1977-10-04 Rhone-Poulenc-Textile Device for introducing a yarn into a pneumatic yarn texturizing means
DE2544811A1 (en) * 1975-10-07 1977-04-21 Barmag Barmer Maschf Two-stage yarn suction device - operates efficiently at yarn speeds of more than 4000 metres per minute
DE2652982C3 (en) * 1976-11-22 1980-01-24 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Device for threading a continuous thread fed at high delivery speed into a narrow tubular body

Also Published As

Publication number Publication date
DE2749188A1 (en) 1979-05-10
JPS5482470A (en) 1979-06-30
DE2860100D1 (en) 1980-11-13
US4240187A (en) 1980-12-23
JPS6111867B2 (en) 1986-04-04
EP0001988A1 (en) 1979-05-30
DE2749188C2 (en) 1981-11-12

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