EP3519617B1 - Process and device for cooling an artificial yarn - Google Patents

Process and device for cooling an artificial yarn Download PDF

Info

Publication number
EP3519617B1
EP3519617B1 EP17704776.8A EP17704776A EP3519617B1 EP 3519617 B1 EP3519617 B1 EP 3519617B1 EP 17704776 A EP17704776 A EP 17704776A EP 3519617 B1 EP3519617 B1 EP 3519617B1
Authority
EP
European Patent Office
Prior art keywords
cooling
groove
thread
base
liquid
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
EP17704776.8A
Other languages
German (de)
French (fr)
Other versions
EP3519617A1 (en
Inventor
Philip JUNGBECKER
Tobias MÜNSTERMANN
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.)
Oerlikon Textile 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
Application filed by Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP3519617A1 publication Critical patent/EP3519617A1/en
Application granted granted Critical
Publication of EP3519617B1 publication Critical patent/EP3519617B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/003—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one stationary surface, e.g. a plate
    • 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
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel

Definitions

  • the invention relates to a method for cooling a synthetic thread according to the preamble of claim 1 and a cooling device for carrying out the method according to the preamble of claim 6.
  • the crimp is thus retained in the thread and effects the desired finishing.
  • the thread is preferably cooled by an air-cooled cooling rail, on the surface of which the thread is guided with contact.
  • air-cooled cooling rails have the fundamental disadvantage that relatively long cooling sections are required in order to obtain sufficient cooling of the thread.
  • methods and devices are therefore known in which the cooling of the thread is carried out with the aid of a cooling liquid in order to be able to realize the shortest possible cooling distances.
  • a generic method and a generic device are for example from the EP 0 403 098 A2 known.
  • a cooling body with a cooling groove is provided which has several recessed slot pockets in the groove base of the cooling groove.
  • the cooling groove is coupled to a cooling liquid reservoir via a capillary, so that a cooling liquid is continuously introduced into the cooling groove.
  • the heated thread is guided through the cooling groove with contact and cooled by the cooling liquid.
  • the thread is then passed over a subsequent cooling rail.
  • the heat sink forms a relatively short cooling path, the excess cooling liquid being collected at the end of the heat sink and returned to a tank.
  • the WO 0138620 A1 a method for cooling a synthetic thread in the texturing zone is known, in which a cooling liquid is fed to the thread by means of a metering pump, the metering pump being regulated as a function of a liquid application monitored on the thread.
  • the application of liquid to the thread is measured by an electrical resistance on a section of yarn after cooling.
  • the object of the invention is to provide a generic method and a generic cooling device for cooling a synthetic thread within a texturing zone of a texturing machine, with which the thread can be evenly cooled without a substantial excess of cooling liquid.
  • Another aim of the invention is to develop the generic method and the generic cooling device for cooling a synthetic thread in such a way that, in particular, a multiplicity of threads can be cooled in parallel under the same conditions.
  • the invention is based on the knowledge that the amount of cooling liquid and the mass of the thread must be in a certain relationship to one another in order to obtain the desired cooling effect on the one hand and to minimize an excess of cooling liquid at the end of the cooling on the other hand. It must be ensured that the cooling liquid is safely fed to the thread.
  • the inventive method therefore provides that the cooling liquid through a metering opening in the groove bottom of the Cooling groove is supplied as a function of a thread titer of the thread with a delivery rate in the range from 0.05 ml / min to 5 ml / min. Depending on the denier of the thread, a desired cooling of the thread can thus be achieved without a larger excess amount of cooling liquid being produced after cooling.
  • the thread to be cooled is wetted within a cooling section at the bottom of the cooling groove.
  • the thread is guided over a length of the cooling path in the range from 100 mm to 300 mm. This enables the thread to be evenly wetted and cooled.
  • the method variant in which the cooling liquid is distributed within the cooling groove over a plurality of slot pockets lying one behind the other in the groove base has proven particularly successful, the thread being guided with contact over several webs formed between slot pockets.
  • the cooling effect on the thread can thus be increased even further, so that relatively short cooling distances can be realized.
  • the process variant is particularly advantageous in which the thread is guided through several thread guides that are upstream and downstream of the cooling groove, the cooling groove between the thread guides being an in Has thread running direction curved groove base.
  • the angles at which the thread runs into the cooling groove and is led out can be set particularly precisely and reproducibly. A separate adjustment inside the machine or the texturing zone is not necessary due to the thread guide.
  • a suction connection of the suction device can be formed at the lowest point of the cooling groove in the outlet area in order to remove not only the steam but also residual cooling fluid that has not yet been used.
  • the cooling device has a metering device for supplying the cooling liquid, the metering device having a metering means for generating a delivery rate of cooling liquid in the range of 0.05 ml / min. up to 5 ml / min. having.
  • metering means are preferably carried out by metering pumps which generate a continuous, uniform flow of the cooling liquid and can feed it to the cooling groove.
  • the cooling groove on the heat sink is designed with a length in the range from 100 mm to 300 mm.
  • the cooling groove in the groove base has a plurality of recessed groove pockets which are each separated from one another by a guide web in the groove base.
  • the guide webs between the slot pockets on the groove base of the cooling groove can be designed with the same web width and / or with web widths of different sizes in order to guide the thread and to wet the thread within the cooling groove.
  • the further development of the device according to the invention is particularly advantageous in which the cooling groove is at least one thread guide upstream and one thread guide is downstream and in which the cooling groove has a groove bottom curved in the thread running direction.
  • a further development of the device according to the invention is provided for collecting and removing the vapors, in which a suction device is assigned to the cooling body on the cooling groove.
  • the suction device is preferably designed in such a way that, in addition to the vapors, the fluid residues of the cooling fluid that may form in the outlet area are also discharged from the cooling groove. This avoids environmental pollution in a texturing machine.
  • a view of a section of a texturing machine, in particular a texturing zone, is shown schematically.
  • the texturing machine has a feed point 4 in which a feed reel 2 with a thread 3 is held.
  • the thread 3 was previously produced as a partially drawn thread (POY) in a melt spinning process.
  • a first delivery plant 1.1 is assigned to the submission point 4.
  • the delivery mechanism 1.1 is formed in this embodiment by a multiple looped godet unit.
  • the first delivery mechanism 1.1 forms a thread inlet into the so-called texturing zone, which extends up to a second delivery mechanism 1.2.
  • the second delivery mechanism 1.2 is also formed by a multiple looped godet unit.
  • the type of delivery plants 1.1 and 1.2 is exemplary here.
  • clamping feed mechanisms can also be used for thread guidance, in which the thread is guided in a clamping gap between a driven shaft and a pressure roller and / or a pressure belt.
  • a heating device 5 Within the texturing zone extending between the delivery mechanisms 1.1 and 1.2, a heating device 5, a cooling device 6 and a false twisting unit 7 are arranged in the thread running direction.
  • the cooling device 6 is formed by the device according to the invention and is shown in FIG Fig. 2 and Fig. 3 shown individually.
  • FIG. 2 and 3 illustrated embodiment of the cooling device 6 according to the invention is in Fig. 2 schematically in a longitudinal sectional view and in Fig. 3 shown in a cross-sectional view.
  • Fig. 2 schematically in a longitudinal sectional view
  • Fig. 3 shown in a cross-sectional view.
  • the exemplary embodiment of the cooling device 6 has an elongated cooling body 10.
  • a cooling groove 11 extends on an upper side of the cooling body 10.
  • the cooling groove 11 extends to the front ends of the cooling body 10, with an inlet thread guide 8 being assigned to a thread inlet 24 and an outlet thread guide 9 being assigned to the cooling groove 11 on a thread outlet 25.
  • the cooling groove 11 has a curved groove base 17, the curvature of which is characterized by a radius R.
  • the cooling path extending at the groove base 17 between the thread inlet 24 and the thread outlet 25 has a length L in Fig. 2 marked.
  • a metering opening 12 opens into the groove base 17 of the cooling groove 11.
  • the metering opening 12 is connected to a metering device 13 via a metering channel 12.1 and a feed line 26.
  • the metering device 13 has a metering means 14 which is connected to a container 20.
  • the dosing means 14 is preferably designed as a dosing pump and is driven by a motor 15.
  • the motor 15 is controlled via a control unit 16 which is connected to a machine control unit (not shown here).
  • the groove base 17 has a plurality of recessed groove pockets 18 which are separated from one another in the groove base 17 by a plurality of guide webs 19.
  • the groove pockets 18 in the groove bottom 17 form depressions in which accumulations of cooling liquids can form.
  • the thread 3 is guided on the surface of the guide webs 19 with contact.
  • a suction device 21 is arranged above the cooling groove 11.
  • the suction device 21 has a suction hood 23 which extends over the entire length and width of the cooling groove 11 on the cooling body 10.
  • the suction hood 23 is connected to a vacuum source 22 so that the vapors caused by the cooling liquid when the thread is cooled can be captured and discharged.
  • the vacuum source 22, which could be designed as a fan, can advantageously be operated with a plurality of adjacent suction hoods 23.
  • suction device 21 could also be below the cooling groove be arranged in order to be able to additionally absorb and discharge residual liquids at the thread outlet.
  • a twist is generated mechanically on the thread by the false twist unit 7 for texturing a thread, so that the filaments of the thread 3 twist.
  • This twist runs back against the thread running direction and is usually stopped by a so-called twist stop at the entry of the texturing zone.
  • the twisted thread 3 is heated in the heating device 5 to a temperature of approx. 200 ° C.
  • the thread 3 is fed to the cooling device 6 via the inlet thread guide 8.
  • the dosing means 13 generates a predetermined delivery quantity of cooling liquid, which is continuously introduced into the cooling groove 11 via the nozzle opening 12.
  • the delivery rate is in the range of 0.05 ml / min.
  • the thread In a test with a polyester thread with a thread denier of 300 den, the thread could be sufficiently cooled within a cooling distance of 225 mm. Water was used as the cooling liquid, and a small amount of oil, for example 1%, could be added to the water as required. The amount of cooling liquid was approx. 4 ml / min. It has been found that the twisted thread can be efficiently cooled with an amount of cooling liquid in the range from 5 to 15% of the thread weight. This enabled the liquid residues to be minimized at the end of the cooling process. The method according to the invention and the device according to the invention are therefore particularly distinguished by the fact that the thread is adequately cooled in the texturing process with minimal use of cooling liquid. Time-consuming collection and processing of residual liquids is not required.
  • the thread guides 8 and 9 at the thread inlet 24 and thread outlet 25 of the cooling device 6 enable the thread guide to be preset, so that a reproducible thread guide that is identical in parallel processing points can be carried out. Elaborate adjustment work within the texturing machine and the texturing zone can thus be dispensed with.
  • the groove base 17 of the cooling groove 11 in the heat sink 10 is formed with uniform groove pockets 18, so that the guide webs 19 between the slot pockets each have a web width of the same size.
  • the guide webs 19 are designed with different web widths.
  • the embodiment according to Fig. 4 is otherwise identical to the embodiment according to Fig. 2 , the suction device 21 and the metering device 13 not being shown here.
  • the guide webs 19 are made much wider in the outlet area than in the other areas of the cooling groove 11.
  • the supply of the cooling liquid to the thread can be intensified, so that relatively short cooling paths on the cooling body 10 and thus short cooling grooves 11 can be implemented.
  • the cooling groove 11 without slot pockets there is also the possibility of designing the cooling groove 11 without slot pockets.
  • FIG. 5 an exemplary embodiment of the cooling device according to the invention is shown in which the cooling groove 11 does not have any groove pockets 18 in the groove base 17.
  • the suction device 21 and the metering device 13 are not shown.
  • the thread 3 is felt with an uninterrupted contact at the groove base 17 of the cooling groove 11.
  • the cooling liquid which is introduced into the cooling groove 11 via the metering opening 12, is evenly distributed on the groove walls of the cooling groove 11 and is evaporated up to the thread outlet 25 or taken up by the thread and carried along.
  • FIG. 5 The embodiment of the device according to the invention shown in the illustrated embodiment of the metering channel 12.1 opens into the cooling groove 11 with an inclination in the thread running direction.

Description

Die Erfindung betrifft ein Verfahren zum Abkühlen eines synthetischen Fadens gemäß dem Oberbegriff des Anspruchs 1 sowie eine Kühlvorrichtung zur Durchführung des Verfahrens gemäß dem Oberbegriff des Anspruchs 6.The invention relates to a method for cooling a synthetic thread according to the preamble of claim 1 and a cooling device for carrying out the method according to the preamble of claim 6.

Zur Veredlung von gesponnenen synthetischen Fäden wird über Jahrzehnte ein Verfahren zum Kräuseln der multifilen Fäden genutzt, das in der Fachwelt auch als sogenanntes Falschdralltexturieren bekannt ist. Hierzu wird ein teilverstrecktes Garn, das zuvor in einem Schmelzspinnprozess erzeugt wurde, innerhalb einer Texturierzone einer Texturiermaschine gekräuselt. An dem Faden wird dabei mechanisch ein Falschdrall erzeugt, der sich entgegen der Fadenlaufrichtung fortpflanzt. In diesem gedrallten Zustand wird der Faden auf eine Temperatur im Bereich von 200°C erwärmt. Der dabei erreichte plastische Zustand des Fadenmaterials führt dazu, dass sich der Drall in einzelnen Filamenten des Fadens einprägt. Zur Fixierung dieser Fadenstruktur wird der Faden anschließend unmittelbar auf eine Temperatur von ca. 80°C abgekühlt. Somit bleibt die Kräuselung in dem Faden erhalten und bewirkt die gewünschte Veredelung. Die Abkühlung des Fadens wird dabei bevorzugt durch eine luftgekühlte Kühlschiene ausgeführt, an deren Oberfläche der Faden mit Kontakt geführt wird. Derartige Kühlschienen besitzen jedoch grundsätzlich den Nachteil, dass relativ lange Kühlstrecken erforderlich sind, um eine ausreichende Abkühlung des Fadens zu erhalten. Im Stand der Technik sind daher Verfahren und Vorrichtungen bekannt, bei welcher die Abkühlung des Fadens mit Hilfe einer Kühlflüssigkeit durchgeführt wird, um möglichst kurze Kühlstrecken realisieren zu können.For the refinement of spun synthetic threads, a process for crimping the multifilament threads has been used for decades, which is also known to experts as so-called false twist texturing. For this purpose, a partially drawn yarn that has previously been produced in a melt spinning process is crimped within a texturing zone of a texturing machine. A false twist is mechanically generated on the thread, which propagates against the thread running direction. In this twisted state, the thread is heated to a temperature in the region of 200 ° C. The plastic state of the thread material reached in this way means that the twist is impressed in individual filaments of the thread. To fix this thread structure, the thread is then immediately cooled to a temperature of approx. 80 ° C. The crimp is thus retained in the thread and effects the desired finishing. The thread is preferably cooled by an air-cooled cooling rail, on the surface of which the thread is guided with contact. However, such cooling rails have the fundamental disadvantage that relatively long cooling sections are required in order to obtain sufficient cooling of the thread. In the prior art, methods and devices are therefore known in which the cooling of the thread is carried out with the aid of a cooling liquid in order to be able to realize the shortest possible cooling distances.

Ein gattungsgemäßes Verfahren sowie eine gattungsgemäße Vorrichtung sind beispielsweise aus der EP 0 403 098 A2 bekannt. Bei dem bekannten Verfahren und der bekannten Vorrichtung zum Abkühlen eines synthetischen Fadens ist ein Kühlkörper mit einer Kühlnut vorgesehen, der im Nutgrund der Kühlnut mehrere vertiefte Nuttaschen aufweist. Die Kühlnut ist über eine Kapillare mit einem Kühlflüssigkeitsreservoir gekoppelt, so dass eine Kühlflüssigkeit kontinuierlich in die Kühlnut eingeleitet wird. Der erwärmte Faden wird mit Kontakt durch die Kühlnut geführt und durch die Kühlflüssigkeit gekühlt. Anschließend wird der Faden über eine nachfolgende Kühlschiene geführt.A generic method and a generic device are for example from the EP 0 403 098 A2 known. In the known method and the known device for cooling a synthetic thread, a cooling body with a cooling groove is provided which has several recessed slot pockets in the groove base of the cooling groove. The cooling groove is coupled to a cooling liquid reservoir via a capillary, so that a cooling liquid is continuously introduced into the cooling groove. The heated thread is guided through the cooling groove with contact and cooled by the cooling liquid. The thread is then passed over a subsequent cooling rail.

Bei dem bekannten Verfahren und bei der bekannten Vorrichtung bildet der Kühlkörper eine relativ kurze Kühlstrecke, wobei die überschüssige Kühlflüssigkeit am Ende des Kühlkörpers aufgefangen und zu einem Tank zurückgeführt wird. Unter Berücksichtigung, dass in herkömmlichen Texturiermaschinen mehrere hundert Texturierzonen parallel nebeneinander betrieben werden, führt die Rückgewinnung der Kühlflüssigkeit zu einem erheblichen zusätzlichen Aufwand.In the known method and in the known device, the heat sink forms a relatively short cooling path, the excess cooling liquid being collected at the end of the heat sink and returned to a tank. Taking into account that several hundred texturing zones are operated in parallel next to one another in conventional texturing machines, the recovery of the cooling liquid leads to considerable additional effort.

Um den Überschuss der Kühlflüssigkeit beim Abkühlen des Fadens zu minimieren, ist aus der WO 0138620 A1 ein Verfahren zum Abkühlen eines synthetischen Fadens in der Texturierzone bekannt, bei welchem eine Kühlflüssigkeit mittels einer Dosierpumpe dem Faden zugeführt wird, wobei die Dosierpumpe in Abhängigkeit von einem am Faden überwachten Flüssigkeitsauftrag geregelt wird. Der Flüssigkeitsauftrag an dem Faden wird hierbei durch einen elektrischen Widerstand an einem Garnabschnitt nach der Kühlung gemessen. Damit lassen sich zwar größere Überschussmengen an Kühlflüssigkeit vermeiden, jedoch mit dem Nachteil, dass Zustände mit unzureichender Kühlung des Fadens durch zu wenig Kühlflüssigkeit eintreten können. Diese Zustände führen direkt zur Verschlechterung der Kräuselgleichmäßigkeit.In order to minimize the excess of cooling liquid when the thread cools down, the WO 0138620 A1 a method for cooling a synthetic thread in the texturing zone is known, in which a cooling liquid is fed to the thread by means of a metering pump, the metering pump being regulated as a function of a liquid application monitored on the thread. The application of liquid to the thread is measured by an electrical resistance on a section of yarn after cooling. This allows larger excess quantities of coolant to be avoided, but with the disadvantage that states with insufficient cooling of the thread can occur due to insufficient cooling liquid. These conditions directly lead to the deterioration of the crimp uniformity.

Es ist nun Aufgabe der Erfindung, ein gattungsgemäßes Verfahren sowie eine gattungsgemäße Kühlvorrichtung zum Abkühlen eines synthetischen Fadens innerhalb einer Texturierzone einer Texturiermaschine bereitzustellen, mit welchem bzw. mit welcher eine gleichmäßige Abkühlung des Fadens ohne wesentlichen Kühlflüssigkeitsüberschuss ausführbar ist.The object of the invention is to provide a generic method and a generic cooling device for cooling a synthetic thread within a texturing zone of a texturing machine, with which the thread can be evenly cooled without a substantial excess of cooling liquid.

Ein weiteres Ziel der Erfindung liegt darin, das gattungsgemäße Verfahren und die gattungsgemäße Kühlvorrichtung zum Abkühlen eines synthetischen Fadens derart weiterzubilden, dass insbesondere eine Vielzahl von Fäden parallel unter gleichen Bedingungen abkühlbar sind.Another aim of the invention is to develop the generic method and the generic cooling device for cooling a synthetic thread in such a way that, in particular, a multiplicity of threads can be cooled in parallel under the same conditions.

Diese Aufgabe wird mit einem Verfahren zum Abkühlen eines synthetischen Fadens gemäß dem Anspruch 1 sowie mit einer Kühlvorrichtung zur Durchführung des Verfahrens gemäß dem Anspruch 6 gelöst.This object is achieved with a method for cooling a synthetic thread according to claim 1 and with a cooling device for carrying out the method according to claim 6.

Vorteilhafte Weiterbildungen der Erfindung sind durch die Merkmale und Merkmalskombinationen der jeweiligen Unteransprüche definiert.Advantageous developments of the invention are defined by the features and combinations of features of the respective subclaims.

Die Erfindung liegt die Erkenntnis zugrunde, dass die Menge der Kühlflüssigkeit und die Masse des Fadens in einer bestimmten Relation zueinander stehen müssen, um einerseits den gewünschten Kühleffekt zu erhalten und um andererseits ein Kühlflüssigkeitsüberschuss am Ende der Kühlung zu minimieren. Hierbei ist zu gewährleisten, dass die Kühlflüssigkeit dem Faden sicher zugeführt wird. Das erfindungsgemäße Verfahren sieht daher vor, dass die Kühlflüssigkeit durch eine Dosieröffnung im Nutgrund der Kühlnut in Abhängigkeit von einem Fadentiter des Fadens mit einer Fördermenge im Bereich von 0,05 ml/min bis 5 ml/min zugeführt wird. Je nach Fadentiter des Fadens ist damit eine gewünschte Abkühlung des Fadens realisierbar ohne dass nach der Kühlung eine größere Überschussmenge an Kühlflüssigkeit anfällt.The invention is based on the knowledge that the amount of cooling liquid and the mass of the thread must be in a certain relationship to one another in order to obtain the desired cooling effect on the one hand and to minimize an excess of cooling liquid at the end of the cooling on the other hand. It must be ensured that the cooling liquid is safely fed to the thread. The inventive method therefore provides that the cooling liquid through a metering opening in the groove bottom of the Cooling groove is supplied as a function of a thread titer of the thread with a delivery rate in the range from 0.05 ml / min to 5 ml / min. Depending on the denier of the thread, a desired cooling of the thread can thus be achieved without a larger excess amount of cooling liquid being produced after cooling.

Da beim ersten Kontakt zwischen der Kühlflüssigkeit und dem erwärmten Faden eine relativ starke Verdampfung der Kühlflüssigkeit eintritt, erfolgt die Benetzung des zu kühlenden Fadens innerhalb einer Kühlstrecke am Nutgrund der Kühlnut. Der Faden wird hierzu gemäß einer vorteilhaften Weiterbildung der Erfindung über eine Streckenlänge der Kühlstrecke im Bereich von 100 mm bis 300 mm geführt. Somit ist eine vergleichmäßigte Benetzung und Abkühlung des Fadens möglich.Since relatively strong evaporation of the cooling liquid occurs during the first contact between the cooling liquid and the heated thread, the thread to be cooled is wetted within a cooling section at the bottom of the cooling groove. For this purpose, according to an advantageous development of the invention, the thread is guided over a length of the cooling path in the range from 100 mm to 300 mm. This enables the thread to be evenly wetted and cooled.

Hierbei hat sich insbesondere die Verfahrensvariante bewährt, bei welcher die Kühlflüssigkeit sich innerhalb der Kühlnut über eine Mehrzahl von hintereinander liegenden Nuttaschen im Nutgrund verteilt, wobei der Faden mit Kontakt über mehrere zwischen Nuttaschen ausgebildeten Stegen geführt wird. Damit lässt sich der Kühleffekt an dem Faden noch steigern, so dass relativ kurze Kühlstrecken realisierbar sind.The method variant in which the cooling liquid is distributed within the cooling groove over a plurality of slot pockets lying one behind the other in the groove base has proven particularly successful, the thread being guided with contact over several webs formed between slot pockets. The cooling effect on the thread can thus be increased even further, so that relatively short cooling distances can be realized.

Um innerhalb der Texturierzone eine definierte Fadenführung und gleichmäßige Kontaktierung des Fadens in der Kühlnut zu halten, ist die Verfahrensvariante besonders vorteilhaft, bei welcher der Faden durch mehrere Fadenführer geführt wird, die der Kühlnut vorgeordnet und nachgeordnet sind, wobei die Kühlnut zwischen den Fadenführern eine in Fadenlaufrichtung gekrümmten Nutgrund aufweist. Damit können insbesondere die Winkel, mit denen der Faden in die Kühlnut läuft und herausgeführt wird, besonders genau und reproduzierbar eingestellt werden. Eine gesonderte Anpassung innerhalb der Maschine bzw. der Texturierzone ist aufgrund der Fadenführer nicht erforderlich.In order to maintain a defined thread guide and uniform contact of the thread in the cooling groove within the texturing zone, the process variant is particularly advantageous in which the thread is guided through several thread guides that are upstream and downstream of the cooling groove, the cooling groove between the thread guides being an in Has thread running direction curved groove base. In this way, in particular, the angles at which the thread runs into the cooling groove and is led out can be set particularly precisely and reproducibly. A separate adjustment inside the machine or the texturing zone is not necessary due to the thread guide.

Um die Umgebung möglichst frei von den auftretenden Dämpfen zu halten, ist die Weiterbildung des erfindungsgemäßen Verfahrens vorgesehen, bei welchem ein durch den benetzten Faden verursachter Dampf an der Kühlnut aufgefangen und abgesaugt wird. Unter Berücksichtigung, dass innerhalb einer Texturiermaschine eine Vielzahl von Fäden parallel nebeneinander behandelt wird, ist ein Auffangen und Abführen des Dampfes besonders vorteilhaft.In order to keep the environment as free as possible from the vapors that occur, a further development of the method according to the invention is provided, in which a vapor caused by the wetted thread is captured at the cooling groove and sucked off. Taking into account that a large number of threads are treated in parallel next to one another within a texturing machine, it is particularly advantageous to collect and discharge the steam.

Besonders vorteilhaft lässt sich ein Absauganschluss der Absaugeinrichtung am tiefsten Punkt der Kühlnut im Auslassbereich ausbilden, um neben dem Dampf auch noch nicht verbrauchte Reste an Kühlfluid abzuführen.Particularly advantageously, a suction connection of the suction device can be formed at the lowest point of the cooling groove in the outlet area in order to remove not only the steam but also residual cooling fluid that has not yet been used.

Zur Durchführung des Verfahrens weist die erfindungsgemäße Kühlvorrichtung eine Dosiereinrichtung zur Zuführung der Kühlflüssigkeit auf, wobei die Dosiereinrichtung ein Dosiermittel zur Erzeugung einer Fördermenge an Kühlflüssigkeit im Bereich von 0,05 ml/min. bis 5 ml/min. aufweist. Derartige Dosiermittel werden bevorzugt durch Dosierpumpen ausgeführt, die einen kontinuierlichen gleichmäßigen Förderstrom der Kühlflüssigkeit erzeugen und der Kühlnut zuführen können.To carry out the method, the cooling device according to the invention has a metering device for supplying the cooling liquid, the metering device having a metering means for generating a delivery rate of cooling liquid in the range of 0.05 ml / min. up to 5 ml / min. having. Such metering means are preferably carried out by metering pumps which generate a continuous, uniform flow of the cooling liquid and can feed it to the cooling groove.

Das Aufbringen der Kühlflüssigkeit auf den Faden innerhalb der Kühlnut erfolgt über eine gewisse Kühlstrecke. Hierzu ist die Kühlnut an dem Kühlkörper mit einer Länge im Bereich von 100 mm bis 300 mm ausgeführt. Zur Intensivierung der Kühlung ist desweiteren vorgesehen, dass die Kühlnut im Nutgrund eine Mehrzahl von vertieften Nuttaschen aufweist, die jeweils durch einen Führungssteg im Nutgrund voneinander getrennt sind.The application of the cooling liquid to the thread within the cooling groove takes place via a certain cooling path. For this purpose, the cooling groove on the heat sink is designed with a length in the range from 100 mm to 300 mm. To intensify the cooling, it is further provided that the cooling groove in the groove base has a plurality of recessed groove pockets which are each separated from one another by a guide web in the groove base.

Hierbei können die Führungsstege zwischen den Nuttaschen am Nutgrund der Kühlnut mit einer gleichgroßen Stegbreite und / oder mit unterschiedlich großen Stegbreiten ausgeführt sein, um die Fadenführung und die Benetzung des Fadens innerhalb der Kühlnut vorzunehmen.Here, the guide webs between the slot pockets on the groove base of the cooling groove can be designed with the same web width and / or with web widths of different sizes in order to guide the thread and to wet the thread within the cooling groove.

Damit der Faden reproduzierbar mit gleichmäßigen Kontakt im Nutgrund der Kühlnut führbar ist, ist die Weiterbildung der erfindungsgemäßen Vorrichtung besonders vorteilhaft, bei welcher der Kühlnut zumindest ein Fadenführer vorgeordnet und ein Fadenführer nachgeordnet ist und bei welcher die Kühlnut einen in Fadenlaufrichtung gekrümmten Nutgrund aufweist.So that the thread can be guided reproducibly with uniform contact in the groove bottom of the cooling groove, the further development of the device according to the invention is particularly advantageous in which the cooling groove is at least one thread guide upstream and one thread guide is downstream and in which the cooling groove has a groove bottom curved in the thread running direction.

Zum Auffangen und Abführen der Dämpfe ist die Weiterbildung der erfindungsgemäßen Vorrichtung vorgesehen, bei welcher dem Kühlkörper an der Kühlnut eine Absaugeinrichtung zugeordnet ist. Die Absaugeinrichtung ist vorzugsweise derart ausgebildet, dass neben den Dämpfen auch die im Auslassbereich sich möglicherweise bildenden Fluidreste des Kühlfluids aus der Kühlnut abgeführt werden. Damit lassen sich Umgebungsbelastungen in einer Texturiermaschine vermeiden.A further development of the device according to the invention is provided for collecting and removing the vapors, in which a suction device is assigned to the cooling body on the cooling groove. The suction device is preferably designed in such a way that, in addition to the vapors, the fluid residues of the cooling fluid that may form in the outlet area are also discharged from the cooling groove. This avoids environmental pollution in a texturing machine.

Das erfindungsgemäße Verfahren zum Abkühlen eines synthetischen Fadens in einer Texturierzone einer Texturiermaschine wird nachfolgend an einigen Ausführungsbeispielen der erfindungsgemäßen Vorrichtung unter Bezug auf die beigefügten Figuren näher erläutert.The method according to the invention for cooling a synthetic thread in a texturing zone of a texturing machine is explained in more detail below using some exemplary embodiments of the device according to the invention with reference to the accompanying figures.

Es stellen dar

Fig. 1
schematisch eine Ansicht einer Texturierzone einer Texturiermaschine mit integrierter erfindungsgemäßen Kühlvorrichtung zum Abkühlen eines Fadens
Fig. 2
schematisch das Ausführungsbeispiel der erfindungsgemäßen Kühlvorrichtung zum Abkühlen des Fadens aus Fig. 1
Fig. 3
schematisch eine Querschnittsansicht des Ausführungsbeispiels aus Fig. 2
Fig. 4
schematisch eine Schnittansicht eines weiteren Ausführungsbeispiels der erfindungsgemäßen Kühlvorrichtung
Fig. 5
schematisch eine Schnittansicht eines weiteren Ausführungsbeispiels der erfindungsgemäßen Kühlvorrichtung
It represent
Fig. 1
schematically a view of a texturing zone of a texturing machine with an integrated cooling device according to the invention for cooling a thread
Fig. 2
schematically the embodiment of the cooling device according to the invention for cooling the thread Fig. 1
Fig. 3
schematically shows a cross-sectional view of the embodiment Fig. 2
Fig. 4
schematically a sectional view of a further embodiment of the cooling device according to the invention
Fig. 5
schematically a sectional view of a further embodiment of the cooling device according to the invention

In der Fig. 1 ist schematisch eine Ansicht von einem Ausschnitt einer Texturiermaschine, insbesondere eine Texturierzone schematisch dargestellt. Die Texturiermaschine weist hierzu eine Vorlagestelle 4 auf, in welcher eine Vorlagespule 2 mit einem Faden 3 gehalten ist. Der Faden 3 wurde zuvor in einem Schmelzspinnverfahren als ein teilverstreckter Faden (POY) hergestellt. Der Vorlagestelle 4 ist ein erstes Lieferwerk 1.1 zugeordnet. Das Lieferwerk 1.1 ist in diesem Ausführungsbeispiel durch eine mehrfach umschlungene Galetteneinheit gebildet. Das erste Lieferwerk 1.1 bildet einen Fadeneinlauf in die sogenannte Texturierzone, die sich bis zu einem zweiten Lieferwerk 1.2 erstreckt. Das zweite Lieferwerk 1.2 ist ebenfalls durch eine mehrfach umschlungene Galetteneinheit gebildet. Die Art der Lieferwerke 1.1 und 1.2 ist hierbei beispielhaft. Grundsätzlich können auch sogenannte Klemmlieferwerke zur Fadenführung eingesetzt werden, bei welchem der Faden in einem Klemmspalt zwischen einer angetriebenen Welle und einer Andruckrolle und / oder einem Andruckriemen geführt ist. Innerhalb der sich zwischen den Lieferwerken 1.1 und 1.2 erstreckenden Texturierzone ist in Fadenlaufrichtung eine Heizvorrichtung 5, eine Kühlvorrichtung 6 und ein Falschdrallaggregat 7 angeordnet. Die Kühlvorrichtung 6 wird durch die erfindungsgemäße Vorrichtung gebildet und ist in Fig. 2 und Fig. 3 einzeln dargestellt.In the Fig. 1 a view of a section of a texturing machine, in particular a texturing zone, is shown schematically. For this purpose, the texturing machine has a feed point 4 in which a feed reel 2 with a thread 3 is held. The thread 3 was previously produced as a partially drawn thread (POY) in a melt spinning process. A first delivery plant 1.1 is assigned to the submission point 4. The delivery mechanism 1.1 is formed in this embodiment by a multiple looped godet unit. The first delivery mechanism 1.1 forms a thread inlet into the so-called texturing zone, which extends up to a second delivery mechanism 1.2. The second delivery mechanism 1.2 is also formed by a multiple looped godet unit. The type of delivery plants 1.1 and 1.2 is exemplary here. In principle, so-called clamping feed mechanisms can also be used for thread guidance, in which the thread is guided in a clamping gap between a driven shaft and a pressure roller and / or a pressure belt. Within the texturing zone extending between the delivery mechanisms 1.1 and 1.2, a heating device 5, a cooling device 6 and a false twisting unit 7 are arranged in the thread running direction. The cooling device 6 is formed by the device according to the invention and is shown in FIG Fig. 2 and Fig. 3 shown individually.

Das in Fig. 2 und 3 dargestellte Ausführungsbeispiel der erfindungsgemäßen Kühlvorrichtung 6 ist in Fig. 2 schematisch in einer Längsschnittansicht und in Fig. 3 in einer Querschnittsansicht gezeigt. Insoweit kein ausdrücklicher Bezug zu einer der Figuren gemacht ist, gilt die nachfolgende Beschreibung für beide Figuren.This in Fig. 2 and 3 illustrated embodiment of the cooling device 6 according to the invention is in Fig. 2 schematically in a longitudinal sectional view and in Fig. 3 shown in a cross-sectional view. Insofar as no express reference is made to one of the figures, the following description applies to both figures.

Das Ausführungsbeispiel der erfindungsgemäßen Kühlvorrichtung 6 weist einen länglichen Kühlkörper 10 auf. An einer Oberseite des Kühlkörpers 10 erstreckt sich eine Kühlnut 11. Die Kühlnut 11 erstreckt sich bis zu den Stirnenden des Kühlkörpers 10, wobei an einem Fadeneinlauf 24 ein Einlauffadenführer 8 und auf einem Fadenauslauss 25 ein Auslassfadenführer 9 der Kühlnut 11 zugeordnet sind. Die Kühlnut 11 weist einen gekrümmten Nutgrund 17 auf, dessen Krümmung durch einen Radius R gekennzeichnet ist. Die sich am Nutgrund 17 erstreckende Kühlstrecke zwischen dem Fadeneinlauf 24 und dem Fadenauslauf 25 ist mit einer Streckenlänge L in Fig. 2 gekennzeichnet.The exemplary embodiment of the cooling device 6 according to the invention has an elongated cooling body 10. A cooling groove 11 extends on an upper side of the cooling body 10. The cooling groove 11 extends to the front ends of the cooling body 10, with an inlet thread guide 8 being assigned to a thread inlet 24 and an outlet thread guide 9 being assigned to the cooling groove 11 on a thread outlet 25. The cooling groove 11 has a curved groove base 17, the curvature of which is characterized by a radius R. The cooling path extending at the groove base 17 between the thread inlet 24 and the thread outlet 25 has a length L in Fig. 2 marked.

Im Bereich des Fadeneinlaufs 24 mündet eine Dosieröffnung 12 in dem Nutgrund 17 der Kühlnut 11. Die Dosieröffnung 12 ist über einen Dosierkanal 12.1 und einer Zuleitung 26 mit einer Dosiereinrichtung 13 verbunden. Die Dosiereinrichtung 13 weist in diesem Ausführungsbeispiel ein Dosiermittel 14 auf, das mit einem Behälter 20 verbunden ist. In dem Behälter 20 ist eine Kühlflüssigkeit gehalten. Das Dosiermittel 14 ist vorzugsweise als eine Dosierpumpe ausgeführt und wird über einen Motor 15 angetrieben. Der Motor 15 wird über ein Steuergerät 16 gesteuert, das mit einer hier nicht dargestellten Maschinensteuereinheit verbunden ist.In the area of the thread inlet 24, a metering opening 12 opens into the groove base 17 of the cooling groove 11. The metering opening 12 is connected to a metering device 13 via a metering channel 12.1 and a feed line 26. In this exemplary embodiment, the metering device 13 has a metering means 14 which is connected to a container 20. In the container A cooling liquid is held in 20. The dosing means 14 is preferably designed as a dosing pump and is driven by a motor 15. The motor 15 is controlled via a control unit 16 which is connected to a machine control unit (not shown here).

In einem sich zwischen der Dosieröffnung 12 und dem Fadenauslauf 25 erstreckenden Abschnitt der Kühlnut 11 weist der Nutgrund 17 eine Mehrzahl von vertieften Nuttaschen 18 auf, die im Nutgrund 17 durch eine Mehrzahl von Führungsstegen 19 voneinander getrennt sind.In a section of the cooling groove 11 extending between the metering opening 12 and the thread outlet 25, the groove base 17 has a plurality of recessed groove pockets 18 which are separated from one another in the groove base 17 by a plurality of guide webs 19.

Wie insbesondere aus der Darstellung in Fig. 3 hervorgeht, bilden die Nuttaschen 18 im Nutgrund 17 Vertiefungen, in welchen sich Ansammlungen der Kühlflüssigkeiten bilden können. Der Faden 3 wird an der Oberfläche der Führungsstege 19 mit Kontakt geführt.As can be seen in particular from the representation in Fig. 3 is apparent, the groove pockets 18 in the groove bottom 17 form depressions in which accumulations of cooling liquids can form. The thread 3 is guided on the surface of the guide webs 19 with contact.

Wie aus den Darstellungen in Fig. 2 und Fig. 3 hervorgeht, ist oberhalb der Kühlnut 11 eine Absaugeinrichtung 21 angeordnet. Die Absaugeinrichtung 21 weist eine Saughaube 23 auf, die sich über die gesamte Länge und Breite der Kühlnut 11 am Kühlkörper 10 erstreckt. Die Saughaube 23 ist mit einer Unterdruckquelle 22 verbunden, so dass die beim Abkühlen des Fadens durch die Kühlflüssigkeit verursachten Dämpfe aufgefangen und abgeführt werden können. Die Unterdruckquelle 22, die als ein Gebläse ausgeführt sein könnte, lässt sich vorteilhaft mit mehreren benachbarten Saughauben 23 betreiben.As shown in the Fig. 2 and Fig. 3 is apparent, a suction device 21 is arranged above the cooling groove 11. The suction device 21 has a suction hood 23 which extends over the entire length and width of the cooling groove 11 on the cooling body 10. The suction hood 23 is connected to a vacuum source 22 so that the vapors caused by the cooling liquid when the thread is cooled can be captured and discharged. The vacuum source 22, which could be designed as a fan, can advantageously be operated with a plurality of adjacent suction hoods 23.

An dieser Stelle sei ausdrücklich erwähnt, dass es ich hierbei um ein konstruktives Ausführungsbeispiel der erfindungsgemäßen Kühlvorrichtung handelt. So könnte die Absaugeinrichtung 21 auch unterhalb der Kühlnut angeordnet sein, um insbesondere Restflüssigkeiten am Fadenauslass zusätzlich aufnehmen und abführen zu können.It should be expressly mentioned at this point that this is a constructive embodiment of the cooling device according to the invention. So the suction device 21 could also be below the cooling groove be arranged in order to be able to additionally absorb and discharge residual liquids at the thread outlet.

Wie aus der Darstellung in Fig. 1 hervorgeht, wird zum Texturieren eines Fadens durch das Falschdrallaggregat 7 an dem Faden mechanisch ein Drall erzeugt, so dass die Filamente des Fadens 3 sich verdrehen. Dieser Drall läuft entgegen der Fadenlaufrichtung zurück und wird in der Regel durch einen sogenannten Drallstopp am Einlauf der Texturierzone gestoppt. Der gedrallte Faden 3 wird so in der Heizvorrichtung 5 auf eine Temperatur von ca. 200°C erwärmt. Um den erwärmten Faden zur Kräuselfixierung abzukühlen, wird der Faden 3 über den Einlauffadenführer 8 der Kühlvorrichtung 6 zugeführt. Zur Kühlung des gedrallten Fadens erzeugt das Dosiermittel 13 eine vorbestimmte Fördermenge an Kühlflüssigkeit, die kontinuierlich über die Düsenöffnung 12 in die Kühlnut 11 eingeleitet wird. Hierbei wird die Fördermenge derart im Bereich von 0,05 ml/min. bis 5 ml/min. eingestellt, dass einerseits eine ausreichende Abkühlung des Fadens und andererseits keine wesentliche Überschussmenge an Kühlflüssigkeit nach Verlassen der Kühlnut 11 an dem Faden entstehen. Durch den gedrallten Zustand des Fadens 3 erschwert sich die Flüssigkeitsaufnahme zur Kühlung so dass die Kühlnut in Abhängigkeit vom Fadentiter eine bestimmte Streckenlänge im Bereich von 100 mm bis 300 mm bildet.As shown in Fig. 1 is shown, a twist is generated mechanically on the thread by the false twist unit 7 for texturing a thread, so that the filaments of the thread 3 twist. This twist runs back against the thread running direction and is usually stopped by a so-called twist stop at the entry of the texturing zone. The twisted thread 3 is heated in the heating device 5 to a temperature of approx. 200 ° C. In order to cool the heated thread to fix the crimp, the thread 3 is fed to the cooling device 6 via the inlet thread guide 8. To cool the twisted thread, the dosing means 13 generates a predetermined delivery quantity of cooling liquid, which is continuously introduced into the cooling groove 11 via the nozzle opening 12. Here, the delivery rate is in the range of 0.05 ml / min. up to 5 ml / min. set so that on the one hand there is sufficient cooling of the thread and on the other hand no significant excess amount of cooling liquid occurs after leaving the cooling groove 11 on the thread. The twisted state of the thread 3 makes it more difficult to absorb liquid for cooling, so that the cooling groove forms a certain length in the range of 100 mm to 300 mm depending on the thread denier.

In einem Versuch mit einem Polyesterfaden mit einem Fadentiter von 300 den konnte der Faden innerhalb einer Kühlstrecke von 225 mm ausreichend gekühlt werden. Als Kühlflüssigkeit wurde Wasser verwendet, wobei je nach Bedarf dem Wasser eine geringe Menge an Öl beispielsweise 1% beigefügt werden könnte. Die Menge der Kühlflüssigkeit lag bei ca. 4 ml/min. Es wurde festgestellt, dass der gedrallte Faden mit einer Menge an Kühlflüssigkeit im Bereich von 5 bis 15 % des Fadengewichtes effizient kühlbar ist. Damit konnten die Flüssigkeitsreste am Ende des Kühlvorganges minimiert werden. Das erfindungsgemäße Verfahren sowie die erfindungsgemäße Vorrichtung zeichnen sich daher besonders dadurch aus, dass mit minimalem Einsatz von Kühlflüssigkeit eine ausreichende Abkühlung des Fadens in dem Texturierprozess erfolgt. Aufwändige Auffang und Aufbereitungen von Restflüssigkeiten ist nicht erforderlich.In a test with a polyester thread with a thread denier of 300 den, the thread could be sufficiently cooled within a cooling distance of 225 mm. Water was used as the cooling liquid, and a small amount of oil, for example 1%, could be added to the water as required. The amount of cooling liquid was approx. 4 ml / min. It has been found that the twisted thread can be efficiently cooled with an amount of cooling liquid in the range from 5 to 15% of the thread weight. This enabled the liquid residues to be minimized at the end of the cooling process. The method according to the invention and the device according to the invention are therefore particularly distinguished by the fact that the thread is adequately cooled in the texturing process with minimal use of cooling liquid. Time-consuming collection and processing of residual liquids is not required.

Zudem ist durch die Fadenführer 8 und 9 am Fadeneinlauf 24 und am Fadenauslauf 25 der Kühlvorrichtung 6 eine Voreinstellung der Fadenführung möglich, so dass eine reproduzierbare und in parallelen Bearbeitungsstellen identische Fadenführung ausführbar ist. Aufwändige Einstellungsarbeiten innerhalb der Texturiermaschine und der Texturierzone können dadurch entfallen.In addition, the thread guides 8 and 9 at the thread inlet 24 and thread outlet 25 of the cooling device 6 enable the thread guide to be preset, so that a reproducible thread guide that is identical in parallel processing points can be carried out. Elaborate adjustment work within the texturing machine and the texturing zone can thus be dispensed with.

Bei dem in Fig. 2 dargestellten Ausführungsbeispiel ist der Nutgrund 17 der Kühlnut 11 in dem Kühlkörper 10 mit gleichmäßigen Nuttaschen 18 ausgebildet, so dass die Führungsstege 19 zwischen den Nuttaschen jeweils eine gleichgroße Stegbreite aufweisen. Grundsätzlich besteht jedoch auch die Möglichkeit, die Stegbreiten der Führungsstege 19 im Nutgrund 17 unterschiedlich lang auszuführen. Hierzu ist in Fig. 4 ein Ausführungsbeispiel der erfindungsgemäßen Kühlvorrichtung dargestellt, bei welcher die Führungsstege 19 mit unterschiedlichen Stegbreiten ausgeführt sind. Das Ausführungsbeispiel nach Fig. 4 ist ansonsten identisch zu dem Ausführungsbeispiel nach Fig. 2, wobei die Absaugeinrichtung 21 und die Dosiereinrichtung 13 hier nicht dargestellt sind. In dem Ausführungsbeispiel nach Fig. 4 sind die Führungsstege 19 im Auslaufbereich wesentlich breiter ausgeführt als in den übrigen Bereichen der Kühlnut 11. Durch die Nuttaschen 18 im Nutgrund 17 der Kühlnut 11 lässt sich die Zuführung der Kühlflüssigkeit zu dem Faden intensivieren, so dass relativ kurze Kühlstrecken an dem Kühlkörper 10 und damit kurze Kühlnuten 11 realisierbar sind. Es besteht jedoch auch die Möglichkeit, die Kühlnut 11 ohne Nuttaschen auszuführen.The in Fig. 2 The illustrated embodiment, the groove base 17 of the cooling groove 11 in the heat sink 10 is formed with uniform groove pockets 18, so that the guide webs 19 between the slot pockets each have a web width of the same size. In principle, however, there is also the possibility of making the web widths of the guide webs 19 in the groove base 17 of different lengths. To do this, in Fig. 4 an embodiment of the cooling device according to the invention is shown in which the guide webs 19 are designed with different web widths. The embodiment according to Fig. 4 is otherwise identical to the embodiment according to Fig. 2 , the suction device 21 and the metering device 13 not being shown here. In the embodiment according to Fig. 4 the guide webs 19 are made much wider in the outlet area than in the other areas of the cooling groove 11. Through the slot pockets 18 in the groove base 17 of the cooling groove 11, the supply of the cooling liquid to the thread can be intensified, so that relatively short cooling paths on the cooling body 10 and thus short cooling grooves 11 can be implemented. However, there is also the possibility of designing the cooling groove 11 without slot pockets.

In Fig. 5 ist ein Ausführungsbeispiel der erfindungsgemäßen Kühlvorrichtung dargestellt, bei welcher die Kühlnut 11 im Nutgrund 17 keine Nuttaschen 18 aufweist. Auch hier wurde auf die Darstellung der Absaugeinrichtung 21 und der Dosiereinrichtung 13 verzichtet. Der Faden 3 wird in diesem Fall mit einer ununterbrochenen Kontaktierung am Nutgrund 17 der Kühlnut 11 gefühlt. Die Kühlflüssigkeit, die über die Dosieröffnung 12 in die Kühlnut 11 eingeleitet wird, verteilt sich hierbei gleichmäßig an den Nutwandungen der Kühlnut 11 und wird bis zum Fadenauslauf 25 verdampft oder vom Faden aufgenommen und mitgeführt.In Fig. 5 an exemplary embodiment of the cooling device according to the invention is shown in which the cooling groove 11 does not have any groove pockets 18 in the groove base 17. Here, too, the suction device 21 and the metering device 13 are not shown. In this case, the thread 3 is felt with an uninterrupted contact at the groove base 17 of the cooling groove 11. The cooling liquid, which is introduced into the cooling groove 11 via the metering opening 12, is evenly distributed on the groove walls of the cooling groove 11 and is evaporated up to the thread outlet 25 or taken up by the thread and carried along.

Bei dem in Fig. 5 dargestellten Ausführungsbeispiel der erfindungsgemäßen Vorrichtung mündet der Dosierkanal 12.1 mit einer Neigung in Fadenlaufrichtung in die Kühlnut 11. Damit ist der Förderstrom der Kühlflüssigkeit bereits in Fadenlaufrichtung ausgerichtet und begünstigt die Verteilung in der Kühlnut 11.The in Fig. 5 The embodiment of the device according to the invention shown in the illustrated embodiment of the metering channel 12.1 opens into the cooling groove 11 with an inclination in the thread running direction.

Claims (11)

  1. A method for cooling a synthetic thread within a texturing zone of a texturing machine, wherein a cooling liquid is introduced into a cooling groove of a cooling body, wherein the cooling liquid is distributed in the groove base of the cooling groove, and wherein the heated thread is guided in a contacting manner through the cooling groove, characterized in that the cooling liquid is fed through a metering opening in the groove base of the cooling groove at a conveyed quantity in the range from 0.05 ml/min to 5 ml/min, depending on a thread count (titer)of the thread.
  2. The method as claimed in claim 1, characterized in that the thread in a cooling section on the base groove of the cooling groove is guided by way of a section length in the range from 100 mm to 300 mm.
  3. The method as claimed in claim 1 or 2, characterized in that the cooling liquid within the cooling groove is distributed across a plurality of successive groove pockets in the groove base, wherein the thread is guided in a contacting manner across a plurality of webs configured between the groove pockets.
  4. The method as claimed in one of claims 1 to 3, characterized in that the thread is guided by a plurality of thread guides which are disposed upstream and downstream of the cooling groove, wherein the cooling groove between the thread guides has a groove base that is curved in the thread-running direction.
  5. The method as claimed in one of preceding claims 1 to 4, characterized in that a vapor caused by the wetted thread is intercepted and suctioned at the cooling groove.
  6. A cooling device for carrying out the method as claimed in one of claims 1 to 5, having a cooling body (10) which has an elongate cooling groove (11) for guiding the thread (3), wherein the cooling groove (11) by way of a metering opening (12) in the groove base (17) is connected to a metering installation (13) for feeding a cooling liquid, characterized in that the metering installation (13) has a controllable metering means (14) for generating a conveyed quantity of cooling liquid in the range from 0.05 ml/min to 5 ml/min.
  7. The cooling device as claimed in claim 6, characterized in that the cooling groove (11) on the cooling body (10) has a length (L) in the range from 100 mm to 300 mm.
  8. The cooling device as claimed in claim 6 or 7, characterized in that the cooling groove (11) in the groove base (17) has a plurality of depressed groove pockets (18) which are in each case mutually separated by a guide web (19) in the groove base (17).
  9. The cooling device as claimed in claim 8, characterized in that the guide webs (19) between the groove pockets (18) on the groove base (17) are embodied so as to have identical web widths and/or web widths of dissimilar size.
  10. The cooling device as claimed in one of claims 6 to 9, characterized in that at least one thread guide (8) is disposed upstream of the cooling groove (11) and one thread guide (9) is disposed downstream of said cooling groove (11), and in that the cooling groove (11) has a groove base (17) that is curved in the thread-running direction.
  11. The cooling device as claimed in one of claims 6 to 10, characterized in that the cooling body (10) on the cooling groove (11) is assigned a suction installation (21) for intercepting and discharging vapors.
EP17704776.8A 2016-09-28 2017-02-14 Process and device for cooling an artificial yarn Active EP3519617B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016011740 2016-09-28
PCT/EP2017/053246 WO2018059743A1 (en) 2016-09-28 2017-02-14 Method and device for cooling a synthetic thread

Publications (2)

Publication Number Publication Date
EP3519617A1 EP3519617A1 (en) 2019-08-07
EP3519617B1 true EP3519617B1 (en) 2020-10-07

Family

ID=58018125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17704776.8A Active EP3519617B1 (en) 2016-09-28 2017-02-14 Process and device for cooling an artificial yarn

Country Status (5)

Country Link
EP (1) EP3519617B1 (en)
JP (1) JP6991225B2 (en)
CN (1) CN109790652B (en)
TW (2) TWI803429B (en)
WO (1) WO2018059743A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109963970B (en) * 2016-11-11 2022-02-11 欧瑞康纺织有限及两合公司 Cooling device for synthetic yarns
CN112011922B (en) * 2019-05-30 2024-04-12 欧瑞康纺织有限及两合公司 Cooling equipment for cooling synthetic fibers by using cooling liquid of textile machinery
DE102019134639B4 (en) * 2019-12-17 2021-07-29 Stc Spinnzwirn Gmbh Galette
DE102021002945A1 (en) * 2021-06-09 2022-12-15 Oerlikon Textile Gmbh & Co. Kg Device for cooling a running thread

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5825774B2 (en) * 1977-06-13 1983-05-30 村田機械株式会社 How to start up yarn false twisting equipment
JPS5860034A (en) * 1981-10-02 1983-04-09 東レ株式会社 False twisting process
JPS5865023A (en) * 1981-10-12 1983-04-18 東レ株式会社 Yarn cooling apparatus in false twisting machine
JPS58191230A (en) * 1982-04-28 1983-11-08 東レ株式会社 Method and apparatus for guiding running strand in false twisting region
GB8913825D0 (en) 1989-06-15 1989-08-02 Rieter Scragg Ltd Yarn texturing method and apparatus
JPH0816293B2 (en) * 1990-10-26 1996-02-21 東レ株式会社 False twisting method
JPH0816292B2 (en) * 1992-03-23 1996-02-21 東レ株式会社 Stretching false twisting method and stretching false twisting machine
JP3173123B2 (en) * 1992-05-27 2001-06-04 東レ株式会社 Yarn cooling method of false twisting and its yarn cooling device
JP3139132B2 (en) * 1992-05-27 2001-02-26 東レ株式会社 Method for cooling yarn in false twisting and yarn cooling device
JPH0835136A (en) * 1994-07-20 1996-02-06 Teijin Seiki Co Ltd Cooler of false-twisting machine
JPH09157973A (en) * 1995-12-07 1997-06-17 Murata Mach Ltd Yarn cooling apparatus of draw false-twist texturing machine
JPH09316742A (en) * 1996-03-29 1997-12-09 Toray Ind Inc Device for false twist processing
JP3490844B2 (en) * 1996-05-30 2004-01-26 東レエンジニアリング株式会社 Cooling device for false twisting machine
DE59807796D1 (en) * 1997-05-24 2003-05-15 Barmag Barmer Maschf texturing
CN1323202C (en) * 1999-02-16 2007-06-27 天科纺织机械部件有限公司 Method for feeding in and starting a thread and false twist texturing device
AU1377201A (en) 1999-11-25 2001-06-04 Maschinenfabrik Rieter A.G. Method for cooling a twisted filament yarn
GB0000786D0 (en) * 2000-01-14 2000-03-08 Univ Manchester Apparatus for processing textile materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN109790652B (en) 2021-11-30
JP2019533095A (en) 2019-11-14
WO2018059743A1 (en) 2018-04-05
EP3519617A1 (en) 2019-08-07
CN109790652A (en) 2019-05-21
TW202321536A (en) 2023-06-01
TWI803429B (en) 2023-05-21
TW201814095A (en) 2018-04-16
JP6991225B2 (en) 2022-01-12
TWI774665B (en) 2022-08-21

Similar Documents

Publication Publication Date Title
EP3519617B1 (en) Process and device for cooling an artificial yarn
EP1979513B1 (en) Apparatus for melt spinning and winding synthetic threads
EP1594785B1 (en) Device for producing and winding synthetic threads
DE102007031755A1 (en) Process and assembly to cool extruded hotmelt polymer fibers in cooling duct delivering warm ambient air
EP3312321B1 (en) Device for cooling synthetic yarns
EP3523469B1 (en) Device for cooling a warm yarn
WO2015176982A1 (en) Device for drawing off and drawing a synthetic thread group
DE1926112A1 (en) Device for treating a bundle of threads
DE10218748A1 (en) texture machine
DE10023391A1 (en) Production of cellulosic articles, e.g. fibers, comprises extruding solution to produce fiber, stretching article produced, feeding it without tension to conveyor and removing it from end of conveyor under tension
EP3312322B1 (en) Device for cooling a heated thread
EP3538697B1 (en) Cooling apparatus for a synthetic thread
WO2018172077A1 (en) Method for spreading and separating a filament bundle, and melt spinning device
DE102016014610A1 (en) Device for wetting a thread
DE102012012467A1 (en) Device for applying fluid e.g. oil on movable multifilament thread, has inlet and outlet ports that are formed by short inclined fluid channels at perforated plate at specific inclination angle and having inclined orientation
DE102011011790A1 (en) Apparatus for extruding and cooling monofilament for e.g. artificial turf, has spinning nozzles which are arranged one behind other above cooling bath in extraction direction of monofilaments
EP3368457B1 (en) Apparatus for feeding a plurality of threads
DE1660661A1 (en) Dry spinning device
DE685803C (en) Device for producing threads from spinning solutions, in particular artificial silk threads
EP3149231A1 (en) Method and device for melt-spinning and crimping multiple threads
DE102006053718A1 (en) Producing multifilament yarn by melt spinning filament comprises spreading the filament strands apart during treatment with a fluid finish
DE10355196A1 (en) Textile industry synthetic thread texture modification unit has supply of hot compressed air with jet outlets at intervals along a heated guide
WO2022078931A1 (en) Method and device for applying a liquid onto a running thread
WO2023275090A1 (en) Apparatus for treating at least one multifilament thread
WO2014127981A1 (en) Method and device for the melt-spinning and drawing of a plurality of multifilament threads

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20190418

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200528

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1321243

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201015

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502017007601

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20201007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210108

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210208

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210107

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210107

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210207

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502017007601

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

26N No opposition filed

Effective date: 20210708

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210214

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210214

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210214

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210228

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1321243

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220214

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20230307

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20230213

Year of fee payment: 7

Ref country code: IT

Payment date: 20230223

Year of fee payment: 7

Ref country code: DE

Payment date: 20230216

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20170214