EP1607500B1 - Dispositif de texturation avec démêlage étirage et freinage - Google Patents

Dispositif de texturation avec démêlage étirage et freinage Download PDF

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Publication number
EP1607500B1
EP1607500B1 EP20050011189 EP05011189A EP1607500B1 EP 1607500 B1 EP1607500 B1 EP 1607500B1 EP 20050011189 EP20050011189 EP 20050011189 EP 05011189 A EP05011189 A EP 05011189A EP 1607500 B1 EP1607500 B1 EP 1607500B1
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EP
European Patent Office
Prior art keywords
filament
thread
gaseous
free
fluid medium
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
EP20050011189
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German (de)
English (en)
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EP1607500A1 (fr
Inventor
Armin Wirz
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.)
Truetzschler Switzerland AG
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Truetzschler Switzerland AG
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Publication date
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Publication of EP1607500A1 publication Critical patent/EP1607500A1/fr
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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
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/127—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes including drawing or stretching on the same machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/105—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices the material being subjected to the action of a fluid
    • 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
    • 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
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
    • D02G1/205—After-treatments for fixing crimp or curl
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/222—Stretching in a gaseous atmosphere or in a fluid bed

Definitions

  • the present invention relates to a device for increasing and regulating the thread tension, in particular a Entwirrumblenbremse, on a Texturierspinnvorraum with at least one texturing device according to the preamble of claim 1.
  • air nozzles are predominantly used to texturize the yarn.
  • the thread is drawn by means of an injector in the texturing, further heated by a heated propellant gas and then formed into a Garnpfropfen.
  • the hot Garnpfropfen is deposited on a rotating screen drum.
  • ambient air flows through the plug lying on the screen and cools it.
  • the crimping produced in the grafting is fixed in the thread.
  • the plug is then stretched out again into a yarn and guided by means of conveyor rollers to further treatment points on the machine.
  • the temperature of the plug when stretching must be below a certain value dependent on the polymer. If the plug is stretched out at too high a temperature, the thread immediately loses part of the curl again. One therefore tries to choose the cooling angle and thus the residence time of the plug on the screen drum as large as possible.
  • the yarn, which has been pulled out again to form a thread slides over a sliding angle on the sieve drum. In this case, a certain thread train is generated by friction on the screen. If one chooses the first angle, the cooling angle, as large as possible, the second angle, the slip angle, inevitably decreases.
  • the threading after the screening drum is usually too low for a stable run on the subsequent conveyor rollers.
  • the thread tension after the screening drum is correspondingly increased by the insertion of a thread brake.
  • the thread brake is usually friction brakes.
  • Entwirrrichnbremse is a device to understand that tenses the drawn-out thread after dissolution of the plug for further processing.
  • Known friction brakes are for example from the publications DE 100 09 611 A1 and DE 195 44 202 A1 and the prior art cited therein.
  • the principle of operation of the known thread brakes is based on the fact that the thread experiences a friction with thread guide elements.
  • Known thread brakes can be controlled by adjustable thread guide elements.
  • a generic device is also off GB 1381 937 or DE 22 00 064 known.
  • the yarn is again heated inadmissible at the friction points and can lose part of the crimp.
  • the object of the invention is to provide a device and a method with which the mentioned disadvantage is avoided, the thread train after the texturing device, in particular after the cooling drum, as gently as possible and without mechanical friction points can be increased and controlled and the cooling of the thread is improved ,
  • the essence of the invention is that the thread is not braked by a friction with thread guide elements and thus placed in a tension, but by friction with a gaseous and / or fluid medium surrounding the thread.
  • the medium may be a gas, eg air, a gas mixed with an aerosol, for example finely divided water vapor, a vapor or a liquid.
  • one of the texturing device 4 downstream thread running path 26 is present, on which the thread 7 at least once on a free thread length 24 of 0.5 m - 10 m, preferably 1 m to 5 m, in particular 2 m to 5 m, the Friction is exposed to a gaseous and / or fluid medium, wherein before the free thread length 24 of the thread is not braked by friction on thread guide elements.
  • the free thread running path over which the thread is not acted upon or deflected by any mechanical elements, connects directly to the texturing device 4 or its screening drum 6, without the thread having contact with such elements.
  • Free thread length is to be understood as a length at which the thread does not come into contact with a thread guiding element. This length can be up to 10 meters long.
  • the thread running path has at least the length of a free thread length. On the thread running line, the thread can be guided back and forth several times and thus repeatedly pass through the corresponding free thread length.
  • the thread is guided on the yarn path over at least two pulleys whose distance determines the free thread length.
  • the thread sets on the free thread length, the surrounding medium, such as air, in a movement.
  • This train can act on parallel guided by pulleys more free thread lengths of the thread and thus increase the friction. Any resulting frictional heat is dissipated by the surrounding medium immediately, and it can not come to a friction-induced heating of the thread.
  • means are provided which set the gaseous and / or fluid medium along the free thread length in a directed movement, preferably against or transverse to the thread running direction.
  • an externally driven movement of the medium surrounding the thread By an externally driven movement of the medium surrounding the thread, an additional braking effect on the thread can be achieved.
  • the means which set the medium in motion may be, for example, a fan, a pump, a supply of the medium in the vicinity of the free thread length or a removal possibility of the medium.
  • the medium can be brought so targeted in the vicinity of at least one free thread length.
  • the chamber is to be designed so that the thread can be passed conveniently and the gaseous and / or fluid medium can be brought into motion within the chamber.
  • the chamber preferably has a movable lid, which serves to insert the thread, the chamber is advantageously provided with openings for the entry or exit of the thread, the chamber preferably has openings for a supply and a discharge of the gaseous and / or fluid medium.
  • the thread runs on one or more sections of the free thread length within one or more tubular elements.
  • the tubular elements serve to guide, in particular, when the thread is not in the running state or the thread is weakening due to other reasons. In the running state of the thread usually does not touch the tubular elements.
  • the at least one tubular element is provided with a preferably closable longitudinal slot for insertion of the thread, and one or more supply channels for the supply of the gaseous and / or fluid medium.
  • the effectiveness of the device according to the invention can be further improved if it comprises a control device, with which the thread train to be achieved can be regulated.
  • the control device for example, the free thread length can be varied, but it can also be the speed of the directed movement, the composition, the amount or the temperature of the gaseous and / or fluid medium can be regulated.
  • control device comprises a control loop, which ensures a constant value of the thread train.
  • control device has a device for detecting the thread train.
  • FIG. 1 shows a section of a texturing spinning device 1 according to the prior art.
  • the yarn 7 to be processed is first stretched over a pair of draw rolls 2 and then fed into a texturing device 4. There arises a plug 5, which is placed on a rotating screen drum 6 after leaving the texturing device 4. It remains above the cooling angle K on the screen drum 6. After passing through the cooling angle K, the plug at the end A of the cooling angle K is pulled out again to a thread 7. The extended thread 7 then slides within the angle R on the screen drum 6. The friction between the thread 7 and the screen drum 6 generates a thread train, so that the thread 7 leaves the screen drum 6 with the corresponding thread train. As already mentioned, this string is usually too deep for the next, not shown in the figure, process stages. It is therefore increased by means of a yarn brake 3.
  • the thread brake 3 comprises a plurality of thread guide elements E, at which the thread 7 experiences a friction. When entering the next process stage, the yarn 7 has a yarn tension of a higher value than before the yarn brake.
  • FIG. 2 shows by way of example a first embodiment of the invention.
  • the thread 7 is guided over an inventive Entwirrumblenbremse 23.
  • This consists of a yarn path 26, on which the thread over guide rollers 10 and 11 is guided, so that the yarn. 7 three times a free thread length 24 passes, which corresponds approximately to the distance 27 of the guide rollers 10 and 11.
  • the resulting above all at high yarn speeds air friction is sufficient to achieve the desired thread train after the Entwirrsharenbremse 23.
  • the thread guide 9 only serves to determine the position of the thread at the inlet point on the subsequent conveyor roller 8.
  • the length of the thread running path 26 and thus the free thread length 24 is adjusted to the thread speed and the desired thread tension. It can be between 0.5 m and 10 m, preferably between 1 m and 5 m.
  • the yarn 7 is further cooled on the inventive Entwirrumblenbremse 23 and not reheated by the mechanically generated frictional heat to the yarn brake.
  • the aerodynamically generated braking effect is very gentle on the thread and is not influenced by the contamination and / or the wear of thread-contacting surfaces as in the thread brake according to the prior art. The braking effect therefore remains stable and does not change over time.
  • the laying of the thread in a device according to the invention is very simple, there must be no tight thread guide elements are passed with a landing gun.
  • FIG. 3 shows a schematic representation of another embodiment of an inventive Entwirrumblenbremse 23 with forced cooling. All or part of the yarn path 26 is placed in a chamber 12.
  • This chamber 12 has a movable lid, not shown in the figure, on the front side, which can be opened for insertion of the thread 7.
  • the chamber 12 is also provided with openings 19 for the entry or exit of the thread 7.
  • the chamber 12 has openings 13 for the supply and openings 14 for the discharge of a gaseous and / or fluid medium.
  • As a medium z. B. cooled air can be used.
  • the thread 7 is still cooled by this medium in addition to the braking effect. This can be advantageous for polymers with a low glass transition temperature, such as
  • Another advantage of using a cooled or cooling medium is that one can eliminate the influence of room temperature on the final temperature of the filament 7 after texturing. It is thus possible to achieve a more constant yarn quality even in the case of an insufficiently or insufficiently conditioned environment around the machine.
  • a gaseous medium may be aerosolized, e.g. Water mist, to be enriched.
  • FIG. 4 shows a schematic representation of another embodiment of an inventive Entwirrumblenbremse 23 with a pneumatic braking of the thread.
  • the thread 7 is guided on one or more sections of the free thread length 24 by tubular elements 15. in the FIG. 4
  • the elements 15 are provided with a lockable longitudinal slot not shown in the figure for inserting the thread 7. They have one or more supply channels 16 for the supply of a gaseous and / or fluid medium, hereinafter referred to as fluid.
  • These supply channels 16 is selected so that they produce an injector effect and thus a flow in the longitudinal direction through the element 15 by means of the supplied fluid. It is also possible to attach two or more injectors 17 over the lands of the element 15. Exemplary is in FIG. 4 a second arrangement of injectors 17 is shown. By means of these injectors 17, a high, easily influenced flow velocity of the fluid in the longitudinal direction, counter to the thread running direction 25, can be generated by the elements 15.
  • FIG. 5 shows a schematic representation of another embodiment of an inventive Entwirrumblenbremse 23 with pneumatic braking of the thread 7 and control of the thread tension.
  • the braking effect on the thread 7 can be easily Taxes.
  • the amount of fluid supplied at 16 and 17, respectively, is changed by a controller 21 in this case.
  • a sensor 18 detects the thread tension before entering the next treatment stage, in other words a measure of the longitudinal force in the thread 7.
  • the measured thread tension is compared in a controller 20 with the desired value 22. If the thread tension deviates from the predetermined value, the controller 20 delivers a corresponding signal to the control device 21, which in turn changes the quantity of fluid supplied to the element 15 such that the thread train again assumes the predetermined value.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (21)

  1. Dispositif d'augmentation et de régulation de la traction de fil, en particulier frein d'étirage et de démêlage (23), sur un dispositif de filage et de texturation pourvu d'au moins un dispositif de texturation (4), lequel comprend de préférence un tambour perforé (6), un parcours de fil (26), le long duquel le fil n'est exposé à l'effet d'aucun élément mécanique ou n'est dévié par aucun élément mécanique, se trouvant directement dans le prolongement du dispositif de texturation (4) ou du tambour perforé (6) de ce dernier, sans que le fil ne soit en contact avec ces éléments,
    caractérisé en ce que
    le fil est guidé à l'intérieur du parcours de fil (26), au cours duquel un freinage a lieu, au moins une fois sur une longueur de fil libre (24) d'au moins 0,5 m et est exposé au frottement d'un milieu gazeux et/ou fluide.
  2. Dispositif selon la revendication 1, caractérisé en ce que la longueur de fil libre (24) atteint 0,5 m - 10 m, de préférence 1 m à 5 m, en particulier 2 m à 5 m.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'un parcours de fil (26) est monté en aval du dispositif de texturation (4), parcours sur lequel le fil (7) est exposé à plusieurs reprises sur une longueur de fil libre (24) de 0,5 m - 10 m, de préférence de 1 m à 5 m, en particulier de 2 m à 5 m, au frottement d'un milieu gazeux et/ou fluide, le fil, en amont de la longueur de fil libre (24), n'étant pas freiné par un frottement sur des éléments de guidage du fil.
  4. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce que des moyens amènent le milieu gazeux et/ou fluide le long de la longueur de fil libre (24) à suivre un mouvement dirigé, de préférence à l'encontre du sens de circulation de fil (25) ou transversalement à ce dernier.
  5. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce que la longueur de fil libre (24) est comprise entre 1 m et 5 m.
  6. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce qu'au moins deux poulies de renvoi (10, 11), dont l'espacement (27) détermine la longueur de fil libre (24), sont disposées sur le parcours de fil (26).
  7. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce que le parcours de fil (26) est encapsulé par une chambre (12).
  8. Dispositif selon la revendication précédente, caractérisé en ce que la chambre (12) possède un couvercle mobile servant à l'insertion du fil.
  9. Dispositif selon au moins l'une des revendications 7 ou 8, caractérisé en ce que la chambre (12) est pourvue d'ouvertures (19) pour l'entrée ou la sortie du fil (7).
  10. Dispositif selon au moins l'une des revendications 7 à 9, caractérisé en ce que la chambre (12) possède des ouvertures (13, 14) pour une amenée et une évacuation du milieu gazeux et/ou fluide.
  11. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce qu'au moins un élément tubulaire (15) est disposé sur le parcours de fil (26) pour guider le fil (7) sur au moins une partie de la longueur de fil libre (24).
  12. Dispositif selon la revendication précédente, caractérisé en ce que l'au moins un élément tubulaire (15) est pourvu d'une fente longitudinale, de préférence pouvant être fermée, destinée à l'insertion du fil (7).
  13. Dispositif selon au moins l'une des revendications 11 ou 12, caractérisé en ce que l'au moins un élément tubulaire (15) comprend un ou plusieurs canaux d'amenée (16, 17) pour l'amenée du milieu gazeux et/ou fluide.
  14. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce que le milieu gazeux et/ou fluide contient un aérosol, en particulier un brouillard d'eau, pour augmenter l'effet de refroidissement.
  15. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce que le dispositif comprend un système de commande (21) permettant de régler la traction de fil à obtenir.
  16. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce que le dispositif comprend un système de commande (21) permettant de réguler la vitesse du déplacement dirigé du milieu gazeux et/ou fluide.
  17. Dispositif selon au moins l'une des revendications 15 ou 16, caractérisé en ce que le système de commande (21) comprend un circuit de réglage garantissant une valeur constante de la traction de fil.
  18. Procédé d'augmentation et de régulation de la traction de fil, en particulier au moyen d'un frein à étirement et démêlage (23), un fil étant guidé à travers au moins un dispositif de texturation (4) d'un dispositif de filage et de texturation, de préférence au moyen d'un tambour perforé (6), le fil, après avoir quitté le dispositif de texturation (4) proprement dit, de préférence après s'être déroulé d'un tambour perforé (6), parcourant, directement dans le prolongement du dispositif de texturation (4) ou du tambour perforé (6) de celui-ci, et sans contact avec des éléments mécaniques, au moins un parcours libre, le long duquel le fil n'est exposé à l'effet d'aucun de ces éléments ou n'est dévié par aucun de ces éléments,
    caractérisé en ce que
    le fil est guidé à l'intérieur du parcours de fil (26), au cours duquel un freinage a lieu, au moins une fois sur une longueur de fil libre (24) d'au moins 0,5 m et exposé au frottement d'un milieu gazeux et/ou fluide.
  19. Procédé selon la revendication 18, caractérisé en ce que, dans le dispositif de texturation (4) du dispositif de filage et de texturation, le fil suit un parcours de fil (26) monté en aval, le long duquel le fil (7) est exposé une seule fois ou à plusieurs reprises, sur une longueur de fil libre (24) de 0,5 m à 10 m, de préférence de 1 m à 5 m, en particulier de 2 m à 5 m, au frottement d'un milieu gazeux et/ou fluide.
  20. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au cours d'une étape de procédé supplémentaire, le milieu gazeux et/ou fluide est amené le long de la longueur de fil libre (24) à suivre un mouvement dirigé, de préférence à l'encontre du sens de circulation de fil (25) ou transversalement à celui-ci.
  21. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au cours d'une étape de procédé supplémentaire, la vitesse du mouvement dirigé du milieu gazeux et/ou fluide et donc la traction de fil sont réglées par un système de commande (21).
EP20050011189 2004-06-16 2005-05-23 Dispositif de texturation avec démêlage étirage et freinage Active EP1607500B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410029219 DE102004029219A1 (de) 2004-06-16 2004-06-16 Texturiereinrichtung mit Entwirrstreckenbremse
DE102004029219 2004-06-16

Publications (2)

Publication Number Publication Date
EP1607500A1 EP1607500A1 (fr) 2005-12-21
EP1607500B1 true EP1607500B1 (fr) 2014-10-29

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CN (1) CN1712591A (fr)
DE (1) DE102004029219A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101838871B (zh) * 2009-12-28 2012-06-13 宁波荣溢化纤科技有限公司 卷曲机冷却装置、卷曲机及丝条卷曲方法
CN103757807B (zh) * 2013-12-31 2016-01-20 南通衣路服装有限公司 导纱器

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Publication number Priority date Publication date Assignee Title
DE7022965U (de) * Nickel & Mueller Gmbh Fadenbremse für Textilmaschinen
GB1044697A (en) * 1964-06-09 1966-10-05 Us Rubber Co Method and apparatus for texturing thermoplastic yarn
GB1198035A (en) * 1967-08-23 1970-07-08 Asahi Chemical Ind Process and Apparatus for Producing Crimped Filaments
DE6906995U (de) * 1969-03-27 1969-09-04 Spinn Und Zwirnereimaschb Veb Stauchkraeuselvorrichtung
CA953486A (en) * 1970-03-05 1974-08-27 Goro Ozawa Crimping method and apparatus
BE793642A (fr) 1972-01-03 1973-07-03 Basf Ag Procede de texturisation par filage-etirage pour l'obtention de fils textures
GB1381937A (en) 1972-06-27 1975-01-29 Ici Ltd Composite yarns and methods for their manufacture
US4157604A (en) * 1977-11-18 1979-06-12 Allied Chemical Corporation Method of high speed yarn texturing
GB8701046D0 (en) * 1987-01-16 1987-02-18 Mackie & Sons Ltd J Production of textured yarn
JPH02104749A (ja) * 1988-10-13 1990-04-17 Osaka Denshi Kiki Kk 織機・編機の糸にテンションを加える方法及びその装置
DE59104693D1 (de) 1990-11-29 1995-03-30 Rieter Ag Maschf Verfahren und Vorrichtung zur Pfropfenauflösung nach der Texturierung.
CN1052272C (zh) * 1995-02-02 2000-05-10 里特机械公司 连续卷曲热塑性长丝的方法和装置
DE19544202B4 (de) 1995-11-28 2007-01-04 Saurer Gmbh & Co. Kg Verfahren und Vorrichtung zum Einregeln einer nach einem Rechenspanner vorliegenden Fadenzugkraft in einer Textilmaschine
EP1026295A3 (fr) * 1999-02-06 2003-11-26 Barmag AG Procédé et dispositif pour le frisage à boíte de bourrage d'un fil
JP3420526B2 (ja) * 1999-04-07 2003-06-23 有限会社スズキワーパー 電子制御サンプル整経機
DE10009611A1 (de) 2000-02-29 2001-08-30 Schlafhorst & Co W Vorrichtung zur Steuerung der Fadenzugkraft eines laufenden Fadens in einer automatischen Wickeleinrichtung

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DE102004029219A1 (de) 2006-01-05
EP1607500A1 (fr) 2005-12-21
CN1712591A (zh) 2005-12-28

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