EP3523469B1 - Device for cooling a warm yarn - Google Patents

Device for cooling a warm yarn Download PDF

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Publication number
EP3523469B1
EP3523469B1 EP17705115.8A EP17705115A EP3523469B1 EP 3523469 B1 EP3523469 B1 EP 3523469B1 EP 17705115 A EP17705115 A EP 17705115A EP 3523469 B1 EP3523469 B1 EP 3523469B1
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EP
European Patent Office
Prior art keywords
thread
housing
cooling
groove
outlet
Prior art date
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EP17705115.8A
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German (de)
French (fr)
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EP3523469A1 (en
Inventor
Stefan Conrad
Philip JUNGBECKER
Tobias MÜNSTERMANN
Thomas RAMAKERS
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
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Oerlikon Textile GmbH and Co KG
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Publication of EP3523469A1 publication Critical patent/EP3523469A1/en
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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
    • D02J13/001—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
    • 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

Definitions

  • the invention relates to a device for cooling a heated thread according to the preamble of claim 1.
  • the threads are crimped in a texturing process.
  • the thread is stretched and crimped in a so-called texturing zone.
  • the thread is given a false twist, which propagates against the thread running direction.
  • 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 the individual filaments of the thread.
  • 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.
  • cooling rails have the fundamental disadvantage that relatively long cooling sections are required in order to obtain sufficient cooling when the thread is running at higher speeds.
  • Devices for cooling a heated thread are therefore known in the prior art, 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.
  • Such a generic device for cooling a heated thread is for example from the EP 0 403 098 A2 known.
  • a cooling body with a cooling groove is provided, which has a plurality of 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 the 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 residual coolant escaping on the outlet side of the cooling groove is collected and returned to a tank.
  • the heat sink is held directly in the machine environment, so that the vapors that occur enter the environment without hindrance.
  • the excess cooling liquid residues adhering to the thread are carried along by the thread and sometimes lead to undesired soiling of the surroundings and the neighboring units.
  • a cooling device is for example from the JP H09 157973 A known. Furthermore, from the EP 0 879 907 A1 a texturing machine for texturing a variety of thermoplastic threads is known.
  • Another aim of the invention is to make the generic device for cooling a heated thread user-friendly.
  • this object is achieved in that the heat sink is encapsulated in a housing and that the housing has a threading slot for introducing the thread, which threading slot extends between a thread inlet and a thread outlet on the housing.
  • the invention is characterized in that the area around the heat sink is delimited by a housing.
  • a threading slot on the housing ensures that a thread can be guided into the cooling groove of the heat sink without major tools.
  • the threading slot on the housing extends between a thread inlet and a thread outlet on the housing. In this respect, the openings in the housing required for guiding the thread can be limited to a minimum.
  • the further development of the device according to the invention is particularly advantageous in which the threading slot is formed on a lateral housing wall above the cooling groove of the heat sink. It is common knowledge that vapors rise from the cooling groove.
  • the lateral arrangement of the threading slot means that there is no direct connection between the cooling groove and the threading slot.
  • the cooling groove is preferably designed with a curved groove base.
  • the threading slot between the thread inlet and the thread outlet is formed with a curvature that is at least partially equivalent to the groove base. This allows a substantially constant distance between the cooling groove and the Reach threading slot, which makes it difficult for vapors to escape over the entire cooling section.
  • the thread guidance within a treatment zone can be improved in particular by the further development of the invention in that an inlet thread guide is assigned to the thread inlet and an outlet thread guide is assigned to the thread outlet within the housing and in which the cooling body extends between the thread guides.
  • an inlet thread guide is assigned to the thread inlet
  • an outlet thread guide is assigned to the thread outlet within the housing and in which the cooling body extends between the thread guides.
  • a suction opening to be formed on the housing in the area of the thread outlet, which can be connected to a suction device. In this way, the vapors occurring inside the housing can be continuously removed during operation.
  • the suction opening is preferably formed in a housing base between the cooling body and the thread outlet, so that a residual cooling liquid can be removed at the same time, which is carried along by the thread from the cooling groove and discharged.
  • an air opening to be formed on the housing in the area of the thread inlet flows into an environment. In this way, a continuous fresh air can be supplied.
  • the thread inlet and the thread outlet as well as the threading slot preferably have minimal opening cross-sections. In this way, the entrainment of warm air through the thread can be reduced at the thread inlet.
  • the metering device is preferably arranged outside the housing and connected to the cooling body in the interior of the housing by a fluid line. In this way, a defined amount of cooling liquid can be fed continuously to the cooling groove.
  • the further development of the invention is particularly advantageous in which the cooling groove has a plurality of recessed groove pockets in a section of the groove base, each of which is separated from one another by a guide web in the groove base, the metering opening being formed in an upstream section of the groove base .
  • Figs. 1 to 4 a first embodiment of the device according to the invention for cooling a heated thread is shown in several views.
  • Fig. 1 shows a side view
  • Fig. 2 a front view
  • Fig. 3 a longitudinal sectional view
  • Fig. 4 a cross-sectional view of the device according to the invention.
  • the embodiment of the device according to the invention has an elongated housing 7.
  • an elongated heat sink 1 is arranged in the interior of the housing 7.
  • a cooling groove 2 extends on an upper side of the cooling body 1.
  • the cooling groove 2 extends to the front ends of the cooling body 1.
  • the cooling groove 2 has a curved groove base 3.
  • a metering opening 4 opens into the groove base 3.
  • the metering opening 4 is connected to a metering channel 4.1 which penetrates the cooling body 1 up to an underside.
  • several slot pockets 3.1 are formed, which are separated by several webs 3.2 in the groove base 3.
  • the underside of the heat sink 1 is held on a housing base 7.3 of the housing 7.
  • the environment of the heat sink 1 is encapsulated by the housing 7.
  • the housing 7 In addition to the housing base 7.3, the housing 7 has an opposing housing cover 7.4 and two opposing housing side walls 7.1 and 7.2.
  • the housing wall 7.1 is designed in several parts and forms a threading slot 11.
  • the threading slot 11 extends over the entire length of the housing 7.
  • the threading slot 11 is designed with a curvature equivalent to the curvature of the groove bottom of the cooling groove 2.
  • the threading slot 11 can thus be formed on the housing 7 directly next to the cooling body 1.
  • the threading slot 11 is connected to a thread inlet 8 and to a thread outlet 9, as shown in FIG Fig. 2 using the example of the thread inlet 8.
  • the thread inlet 8 and the thread outlet 9 are formed on the housing end walls 7.5 and 7.6 of the housing 7.
  • an inlet thread guide 8.1 is arranged on the housing end wall 7.5 and an outlet thread guide 9.1 is arranged on the housing end wall 7.2.
  • the inlet thread guide 8.1 and the outlet thread guide 9.1 are preferably formed by a ceramic and have a thread guide groove.
  • the inlet thread guide 8.1 directly forms the thread inlet 8 and the outlet thread guide 9.1 the thread outlet 9.
  • the thread guides 8.1 and 9.1 could be arranged in the interior of the housing 7 independently of a thread inlet 8 and a thread outlet 9.
  • the inlet thread guide 8.1 and the outlet thread guide 9.1 are arranged at a short distance from the front ends of the cooling body 1.
  • the guide grooves of the thread guides 8.1 and 9.1 cooperate with the groove base 3 of the cooling groove 2 for thread guidance.
  • a suction opening 10 is formed within the housing 7 in the housing bottom 7.3 in the region of the thread outlet 9.
  • the suction opening 10 is arranged between the front end of the cooling body 1 and the outlet thread guide 9.1.
  • the suction opening 10 is coupled via a suction line 13 to a suction device not shown here.
  • the housing side wall 7.2 On the opposite side in the inlet area, the housing side wall 7.2 has an air opening 12.
  • the air opening 12 is formed in the area between the inlet thread guide 8.1 and the front end of the cooling body 1.
  • the air opening 12 opens into the surroundings of the housing 7.
  • the supply of a cooling liquid is ensured by a metering device 6 which is arranged outside the housing 7.
  • the metering device 6 has a metering means 6.1, for example a metering pump, and a container 6.2 which is filled with a cooling liquid.
  • the dosing means 6.1 is connected to the dosing channel 4.1 of the cooling body 1 via a fluid line 5.
  • a fluid connection can be formed in the housing base 7.3, for example, through which the fluid line 5 is connected to the metering channel 4.1.
  • the metering device 6 continuously conveys a predetermined amount of cooling liquid to the heat sink 1, the metered amount of cooling liquid being supplied to the cooling groove 2 via the metering opening 4 in the groove base 3.
  • the thread is first guided into the interior of the housing 7 via the threading slot 11 and then placed in the inlet thread guide 8.1, the cooling groove 2 and the outlet thread guide 9.1.
  • the thread passes through the cooling groove 2 with contact on the groove base 3.
  • the thread is wetted with the cooling liquid and cooled.
  • the vapors that occur collect in the housing 7 and are discharged via the suction opening 10.
  • a continuous stream of fresh air is introduced into the interior of the housing 7 via the air opening 12.
  • the device according to the invention for cooling threads is therefore particularly suitable for use in texturing machines with a large number of processing points.
  • a large number of such devices can be used in a texturing machine.
  • intensive cooling of the threads by cooling fluids there is no pollution of the environment in the texturing machine.
  • Because of the threading slot on the housing, quick and simple operating procedures for applying the thread can be carried out by an operator.
  • the in Figs. 1 to 4 The embodiment shown is the structural design of the heat sink 1 exemplary.
  • the heat sink can be designed with or without slot pockets in the slot base.
  • several heat sinks arranged one behind the other can also be provided which are encapsulated together in the housing. It is essential here that the area around the heat sink is encapsulated by the housing and that the housing has a threading slot that can be used for threading the threads.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Kühlen eines erwärmten Fadens gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for cooling a heated thread according to the preamble of claim 1.

Zur Veredelung von gesponnenen synthetischen Fäden ist es bekannt, dass die Fäden in einem Texturierprozess eine Kräuselung erhalten. Der Faden wird dabei in einer sogenannten Texturierzone verstreckt und gekräuselt. Zur Kräuselung erhält der Faden einen Falschdrall, 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 den 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 Kühlung des Fadens wird dabei bevorzugt durch eine luftgekühlte Kühlschiene ausgeführt, an dessen Oberfläche der Faden mit Kontakt geführt wird. Derartige Kühlschienen besitzen jedoch grundsätzlich den Nachteil, dass relativ lange Kühlstrecken erforderlich sind, um bei einem laufenden Faden mit höheren Geschwindigkeiten eine ausreichende Abkühlung zu erhalten. Im Stand der Technik sind daher Vorrichtungen zum Kühlen eines erwärmten Fadens bekannt, bei welcher die Abkühlung des Fadens mit Hilfe einer Kühlflüssigkeit durchgeführt wird, um möglichst kurze Kühlstrecken realisieren zu können.To refine spun synthetic threads, it is known that the threads are crimped in a texturing process. The thread is stretched and crimped in a so-called texturing zone. For crimping, the thread is given a false twist, 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 the 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 when the thread is running at higher speeds. Devices for cooling a heated thread are therefore known in the prior art, 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.

Eine derart gattungsgemäße Vorrichtung zum Kühlen eines erwärmten Fadens ist beispielsweise aus der EP 0 403 098 A2 bekannt. Bei der bekannten Vorrichtung 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 die 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 geleitet. Die auf der Auslassseite der Kühlnut austretende Restkühlflüssigkeit wird aufgefangen und zu einem Tank zurückgeführt.Such a generic device for cooling a heated thread is for example from the EP 0 403 098 A2 known. In the known device, a cooling body with a cooling groove is provided, which has a plurality of 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 the 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 residual coolant escaping on the outlet side of the cooling groove is collected and returned to a tank.

Bei der bekannten Vorrichtung ist der Kühlkörper unmittelbar in der Maschinenumgebung gehalten, so dass die auftretenden Dämpfe ungehindert in die Umgebung treten. Zudem werden die an dem Faden anhaftenden überschüssigen Kühlflüssigkeitsreste durch den Faden mitgeführt und führen zu teilweise ungewünschten Verschmutzungen der Umgebung und der benachbarten Aggregate.In the known device, the heat sink is held directly in the machine environment, so that the vapors that occur enter the environment without hindrance. In addition, the excess cooling liquid residues adhering to the thread are carried along by the thread and sometimes lead to undesired soiling of the surroundings and the neighboring units.

Eine Kühlvorrichtung ist beispielsweise aus der JP H09 157973 A bekannt. Ferner ist aus der EP 0 879 907 A1 eine Texturiermaschine zum Texturieren einer Vielzahl von thermoplastischen Fäden bekannt.A cooling device is for example from the JP H09 157973 A known. Furthermore, from the EP 0 879 907 A1 a texturing machine for texturing a variety of thermoplastic threads is known.

Es ist nun Aufgabe der Erfindung, eine gattungsgemäße Vorrichtung zum Kühlen eines erwärmten Fadens bereitzustellen, mit welcher eine Belastung der Umgebung durch Dämpfe und Restkühlflüssigkeiten vermieden wird.It is now the object of the invention to provide a device of the generic type for cooling a heated thread, with which a pollution of the surroundings by vapors and residual cooling liquids is avoided.

Ein weiteres Ziel der Erfindung liegt darin, die gattungsgemäße Vorrichtung zum Kühlen eines erwärmten Fadens bedienungsfreundlich zu gestalten.Another aim of the invention is to make the generic device for cooling a heated thread user-friendly.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Kühlkörper in einem Gehäuse gekapselt ist und dass das Gehäuse einen Einfädelschlitz zum Einführen des Fadens aufweist, welcher Einfädelschlitz sich zwischen einem Fadeneinlass und einem Fadenauslass am Gehäuse erstreckt.According to the invention, this object is achieved in that the heat sink is encapsulated in a housing and that the housing has a threading slot for introducing the thread, which threading slot extends between a thread inlet and a thread outlet on the housing.

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

Die Erfindung zeichnet sich dadurch aus, dass die Umgebung des Kühlkörpers durch ein Gehäuse begrenzt ist. Durch einen Einfädelschlitz an dem Gehäuse bleibt gewährleistet, dass ein Faden ohne größere Hilfsmittel in die Kühlnut des Kühlkörpers führbar ist. Der Einfädelschlitz an dem Gehäuse erstreckt sich hierbei zwischen einem Fadeneinlass und einem Fadenauslass am Gehäuse. Insoweit lassen sich die für die Fadenführung erforderlichen Öffnungen im Gehäuse auf ein Mindestmaß begrenzen.The invention is characterized in that the area around the heat sink is delimited by a housing. A threading slot on the housing ensures that a thread can be guided into the cooling groove of the heat sink without major tools. The threading slot on the housing extends between a thread inlet and a thread outlet on the housing. In this respect, the openings in the housing required for guiding the thread can be limited to a minimum.

Um das mögliche Austreten von Dämpfen aus dem Einfädelschlitz zu erschweren, ist die Weiterbildung der erfindungsgemäßen Vorrichtung besonders vorteilhaft, bei welcher der Einfädelschlitz an einer seitlichen Gehäusewand oberhalb der Kühlnut des Kühlkörpers ausgebildet ist. So ist allgemein bekannt, dass die Dämpfe aus der Kühlnut emporsteigen. Durch die seitliche Anordnung des Einfädelschlitzes ist eine direkte Verbindung zwischen der Kühlnut und dem Einfädelschlitz nicht gegeben.In order to make the possible escape of vapors from the threading slot more difficult, the further development of the device according to the invention is particularly advantageous in which the threading slot is formed on a lateral housing wall above the cooling groove of the heat sink. It is common knowledge that vapors rise from the cooling groove. The lateral arrangement of the threading slot means that there is no direct connection between the cooling groove and the threading slot.

Um einerseits eine definierte Fadenführung und andererseits eine intensive Benetzung im Nutgrund der Kühlnut zu erhalten, ist die Kühlnut bevorzugt mit einem gekrümmten Nutgrund ausgeführt. Hierzu ist der Einfädelschlitz zwischen dem Fadeneinlass und dem Fadenauslass mit einer zum Nutgrund zumindest teilweisen äquivalenten Krümmung ausgebildet. Damit lässt sich ein im wesentlichen konstanter Abstand zwischen der Kühlnut und dem Einfädelschlitz erreichen, der das Austreten von Dämpfen über der gesamten Kühlstrecke erschwert.In order to obtain, on the one hand, a defined thread guide and, on the other hand, intensive wetting in the groove base of the cooling groove, the cooling groove is preferably designed with a curved groove base. For this purpose, the threading slot between the thread inlet and the thread outlet is formed with a curvature that is at least partially equivalent to the groove base. This allows a substantially constant distance between the cooling groove and the Reach threading slot, which makes it difficult for vapors to escape over the entire cooling section.

Die Fadenführung innerhalb einer Behandlungszone lässt sich insbesondere durch die Weiterbildung der Erfindung verbessern, indem innerhalb des Gehäuses dem Fadeneinlass ein Einlassfadenführer und dem Fadenauslass ein Auslassfadenführer zugeordnet ist und bei welcher der Kühlkörper sich zwischen den Fadenführern erstreckt. Damit können insbesondere die Winkel, mit denen der Faden in die Kühlnut einläuft und herausgeführt wird, besonders genau und reproduzierbar eingestellt werden. Eine gesonderte Ausrichtung des Kühlkörpers innerhalb einer Textilmaschine ist nicht erforderlich.The thread guidance within a treatment zone can be improved in particular by the further development of the invention in that an inlet thread guide is assigned to the thread inlet and an outlet thread guide is assigned to the thread outlet within the housing and in which the cooling body extends between the thread guides. In this way, in particular, the angles at which the thread enters the cooling groove and is led out can be set particularly precisely and reproducibly. A separate alignment of the heat sink within a textile machine is not necessary.

Damit die Umgebung innerhalb des Gehäuses eine möglichst gleichmäßige Atmosphäre aufweist, ist desweiteren vorgesehen, dass innerhalb des Gehäuses im Bereich des Fadenauslasses eine Saugöffnung am Gehäuse ausgebildet ist, die an eine Absaugeinrichtung anschließbar ist. Damit können die innerhalb des Gehäuses auftretenden Dämpfe während des Betriebes kontinuierlich abgeführt werden.In order that the environment within the housing has an atmosphere that is as uniform as possible, provision is also made for a suction opening to be formed on the housing in the area of the thread outlet, which can be connected to a suction device. In this way, the vapors occurring inside the housing can be continuously removed during operation.

Die Saugöffnung ist dabei bevorzugt in einem Gehäuseboden zwischen dem Kühlkörper und dem Fadenauslass ausgebildet, so dass gleichzeitig eine Restkühlflüssigkeit abgeführt werden kann, die vom Faden aus der Kühlnut mitgeführt und abgegeben wird.The suction opening is preferably formed in a housing base between the cooling body and the thread outlet, so that a residual cooling liquid can be removed at the same time, which is carried along by the thread from the cooling groove and discharged.

Damit ein möglichst gleichmäßiger Luftaustausch innerhalb des Gehäuses stattfindet, ist desweiteren vorgesehen, dass innerhalb des Gehäuses im Bereich des Fadeneinlasses eine Luftöffnung am Gehäuse ausgebildet ist, die in einer Umgebung mündet. So lässt sich eine kontinuierliche Frischluft hinzuführen. Der Fadeneinlass und der Fadenauslass sowie der Einfädelschlitz weisen dabei bevorzugt minimale Öffnungsquerschnitte auf. So lässt sich am Fadeneinlass das Mitschleppen einer Warmluft durch den Faden mindern.In order that the air exchange within the housing is as uniform as possible, provision is also made for an air opening to be formed on the housing in the area of the thread inlet flows into an environment. In this way, a continuous fresh air can be supplied. The thread inlet and the thread outlet as well as the threading slot preferably have minimal opening cross-sections. In this way, the entrainment of warm air through the thread can be reduced at the thread inlet.

Die Dosiereinrichtung ist bevorzugt außerhalb des Gehäuses angeordnet und durch eine Fluidleitung mit dem Kühlkörper im Innern des Gehäuses verbunden. So kann der Kühlnut eine definierte Menge an Kühlflüssigkeit kontinuierlich zugeführt werden.The metering device is preferably arranged outside the housing and connected to the cooling body in the interior of the housing by a fluid line. In this way, a defined amount of cooling liquid can be fed continuously to the cooling groove.

Zur intensiven Kühlung des Fadens ist die Weiterbildung der Erfindung besonders vorteilhaft, bei welcher die Kühlnut in einem Abschnitt des Nutgrundes eine Mehrzahl von vertieften Nuttaschen aufweist, die jeweils durch einen Führungssteg im Nutgrund voneinander getrennt sind wobei die Dosieröffnung in einem vorgeordneten Abschnitt des Nutgrundes ausgebildet ist.For intensive cooling of the thread, the further development of the invention is particularly advantageous in which the cooling groove has a plurality of recessed groove pockets in a section of the groove base, each of which is separated from one another by a guide web in the groove base, the metering opening being formed in an upstream section of the groove base .

Die erfindungsgemäße Vorrichtung zum Kühlen eines erwärmten Fadens wird nachfolgend anhand eines Ausführungsbeispiels unter Bezug auf die beigefügten Figuren näher erläutert.The device according to the invention for cooling a heated thread is explained in more detail below on the basis of an exemplary embodiment with reference to the accompanying figures.

Es stellen dar:

Fig. 1
schematisch eine Seitenansicht eines Ausführungsbeispiels der erfindungsgemäßen Vorrichtung
Fig. 2
schematisch eine Vorderansicht des Ausführungsbeispiels aus Fig. 1
Fig. 3
schematisch eine Längsschnittansicht des Ausführungsbeispiels aus Fig. 1
Fig. 4
schematisch eine Querschnittsansicht des Ausführungsbeispiels aus Fig. 1
They represent:
Fig. 1
schematically a side view of an embodiment of the device according to the invention
Fig. 2
schematically a front view of the embodiment from Fig. 1
Fig. 3
schematically shows a longitudinal sectional view of the embodiment Fig. 1
Fig. 4
schematically shows a cross-sectional view of the embodiment Fig. 1

In den Fig. 1 bis 4 ist ein erstes Ausführungsbeispiel der erfindungsgemäßen Vorrichtung zum Kühlen eines erwärmten Fadens in mehreren Ansichten dargestellt. Fig. 1 zeigt eine Seitenansicht, Fig. 2 eine Vorderansicht, Fig. 3 eine Längsschnittansicht und Fig. 4 eine Querschnittsansicht der erfindungsgemäßen Vorrichtung. Insoweit kein ausdrücklicher Bezug zu einer der Figuren gemacht ist, gilt die nachfolgende Beschreibung für alle Figuren.In the Figs. 1 to 4 a first embodiment of the device according to the invention for cooling a heated thread is shown in several views. Fig. 1 shows a side view, Fig. 2 a front view, Fig. 3 a longitudinal sectional view and Fig. 4 a cross-sectional view of the device according to the invention. Insofar as no express reference is made to one of the figures, the following description applies to all figures.

Das Ausführungsbeispiel der erfindungsgemäßen Vorrichtung weist ein längliches Gehäuse 7 auf. Im Innern des Gehäuses 7 ist ein länglicher Kühlkörper 1 angeordnet. An einer Oberseite des Kühlkörpers 1 erstreckt sich eine Kühlnut 2. Die Kühlnut 2 erstreckt sich bis zu den Stirnenden des Kühlkörpers 1. Die Kühlnut 2 weist einen gekrümmten Nutgrund 3 auf. In einem Einlaufbereich der Kühlnut 2 mündet eine Dosieröffnung 4 in den Nutgrund 3. Die Dosieröffnung 4 ist mit einem Dosierkanal 4.1 verbunden, der den Kühlkörper 1 bis zu einer Unterseite durchdringt. In einem der Dosieröffnungen 4 im Nutgrund nachgeordneten Abschnitt sind mehrere Nuttaschen 3.1 ausgebildet, die durch mehrere Stege 3.2 im Nutgrund 3 getrennt sind.The embodiment of the device according to the invention has an elongated housing 7. In the interior of the housing 7, an elongated heat sink 1 is arranged. A cooling groove 2 extends on an upper side of the cooling body 1. The cooling groove 2 extends to the front ends of the cooling body 1. The cooling groove 2 has a curved groove base 3. In an inlet area of the cooling groove 2, a metering opening 4 opens into the groove base 3. The metering opening 4 is connected to a metering channel 4.1 which penetrates the cooling body 1 up to an underside. In a section downstream of the metering openings 4 in the groove base, several slot pockets 3.1 are formed, which are separated by several webs 3.2 in the groove base 3.

Der Kühlkörper 1 ist mit seiner Unterseite an einem Gehäuseboden 7.3 des Gehäuses 7 gehalten.The underside of the heat sink 1 is held on a housing base 7.3 of the housing 7.

Wie insbesondere aus der Darstellung in Fig. 4 hervorgeht, ist die Umgebung des Kühlkörpers 1 durch das Gehäuse 7 gekapselt. Neben dem Gehäuseboden 7.3 weist das Gehäuses 7 eine gegenüberliegende Gehäusedecke 7.4 und zwei sich gegenüberliegende Gehäuseseitenwände 7.1 und 7.2. Die Gehäusewand 7.1 ist mehrteilig ausgeführt und bildet einen Einfädelschlitz 11.As can be seen in particular from the representation in Fig. 4 is apparent, the environment of the heat sink 1 is encapsulated by the housing 7. In addition to the housing base 7.3, the housing 7 has an opposing housing cover 7.4 and two opposing housing side walls 7.1 and 7.2. The housing wall 7.1 is designed in several parts and forms a threading slot 11.

Wie insbesondere aus der Darstellung in Fig. 1 hervorgeht, erstreckt sich der Einfädelschlitz 11 über die gesamte Länge des Gehäuses 7. In diesem Ausführungsbeispiel ist der Einfädelschlitz 11 mit einer zur Krümmung des Nutgrundes der Kühlnut 2 äquivalenten Krümmung ausgeführt. Somit lässt sich der Einfädelschlitz 11 unmittelbar seitlich neben dem Kühlkörper 1 an dem Gehäuses 7 ausbilden. An den Stirnenden des Gehäuses 7 ist der Einfädelschlitz 11 mit einem Fadeneinlass 8 und mit einem Fadenauslass 9 verbunden, wie aus der Darstellung in Fig. 2 am Beispiel des Fadeneinlasses 8 hervorgeht.As can be seen in particular from the representation in Fig. 1 As can be seen, the threading slot 11 extends over the entire length of the housing 7. In this exemplary embodiment, the threading slot 11 is designed with a curvature equivalent to the curvature of the groove bottom of the cooling groove 2. The threading slot 11 can thus be formed on the housing 7 directly next to the cooling body 1. At the front ends of the housing 7, the threading slot 11 is connected to a thread inlet 8 and to a thread outlet 9, as shown in FIG Fig. 2 using the example of the thread inlet 8.

Der Fadeneinlass 8 und der Fadenauslass 9 sind an den Gehäusestirnwänden 7.5 und 7.6 des Gehäuses 7 ausgebildet. Hierzu ist an der Gehäusestirnwand 7.5 ein Einlassfadenführer 8.1 und an der Gehäusestirnwand 7.2 ein Auslassfadenführer 9.1 angeordnet. Der Einlassfadenführer 8.1 und der Auslassfadenführer 9.1 werden bevorzugt durch eine Keramik gebildet und weisen eine Fadenführungsnut auf. In diesem Ausführungsbeispiel bildet der Einlauffadenführer 8.1 direkt den Fadeneinlass 8 und der Auslassfadenführer 9.1 den Fadenauslass 9. Grundsätzlich könnten die Fadenführer 8.1 und 9.1 unabhängig von einem Fadeneinlass 8 und einem Fadenauslass 9 im Innern des Gehäuses 7 angeordnet sein.The thread inlet 8 and the thread outlet 9 are formed on the housing end walls 7.5 and 7.6 of the housing 7. For this purpose, an inlet thread guide 8.1 is arranged on the housing end wall 7.5 and an outlet thread guide 9.1 is arranged on the housing end wall 7.2. The inlet thread guide 8.1 and the outlet thread guide 9.1 are preferably formed by a ceramic and have a thread guide groove. In this embodiment, the inlet thread guide 8.1 directly forms the thread inlet 8 and the outlet thread guide 9.1 the thread outlet 9. In principle, the thread guides 8.1 and 9.1 could be arranged in the interior of the housing 7 independently of a thread inlet 8 and a thread outlet 9.

Wie insbesondere aus der Darstellung in Fig. 3 hervorgeht, sind der Einlassfadenführer 8.1 und der Auslassfadenführer 9.1 mit kurzem Abstand zu den Stirnenden des Kühlkörpers 1 angeordnet. Hierbei wirken die Führungsnuten der Fadenführer 8.1 und 9.1 mit dem Nutgrund 3 der Kühlnut 2 zur Fadenführung zusammen.As can be seen in particular from the representation in Fig. 3 As can be seen, the inlet thread guide 8.1 and the outlet thread guide 9.1 are arranged at a short distance from the front ends of the cooling body 1. Here, the guide grooves of the thread guides 8.1 and 9.1 cooperate with the groove base 3 of the cooling groove 2 for thread guidance.

Wie aus der Darstellung in Fig. 3 weiter hervorgeht, ist im Bereich des Fadenauslasses 9 eine Saugöffnung 10 innerhalb des Gehäuses 7 im Gehäuseboden 7.3 ausgebildet. Die Saugöffnung 10 ist zwischen dem Stirnende des Kühlkörpers 1 und dem Auslassfadenführer 9.1 angeordnet. Die Saugöffnung 10 ist über eine Absaugleitung 13 mit einer hier nicht näher dargestellten Absaugeinrichtung gekoppelt.As shown in Fig. 3 It can also be seen that a suction opening 10 is formed within the housing 7 in the housing bottom 7.3 in the region of the thread outlet 9. The suction opening 10 is arranged between the front end of the cooling body 1 and the outlet thread guide 9.1. The suction opening 10 is coupled via a suction line 13 to a suction device not shown here.

Auf der gegenüberliegenden Seite in dem Einlaufbereich weist die Gehäuseseitenwand 7.2 einen Luftöffnung 12 auf. Die Luftöffnung 12 ist im Bereich zwischen dem Einlassfadenführer 8.1 und dem Stirnende des Kühlkörpers 1 ausgebildet. Die Luftöffnung 12 mündet in eine Umgebung des Gehäuses 7.On the opposite side in the inlet area, the housing side wall 7.2 has an air opening 12. The air opening 12 is formed in the area between the inlet thread guide 8.1 and the front end of the cooling body 1. The air opening 12 opens into the surroundings of the housing 7.

Die Zufuhr einer Kühlflüssigkeit wird durch eine Dosiereinrichtung 6 gewährleistet, die außerhalb des Gehäuses 7 angeordnet ist. Die Dosiereinrichtung 6 weist hierzu ein Dosiermittel 6.1 beispielsweise eine Dosierpumpe und einen Behälter 6.2 auf, der mit einer Kühlflüssigkeit gefüllt ist. Das Dosiermittel 6.1 ist über eine Fluidleitung 5 mit dem Dosierkanal 4.1 des Kühlkörpers 1 verbunden. Hierzu lässt sich beispielsweise in dem Gehäuseboden 7.3 ein Fluidanschluss ausbilden, durch welchen die Fluidleitung 5 mit dem Dosierkanal 4.1 verbunden ist.The supply of a cooling liquid is ensured by a metering device 6 which is arranged outside the housing 7. For this purpose, the metering device 6 has a metering means 6.1, for example a metering pump, and a container 6.2 which is filled with a cooling liquid. The dosing means 6.1 is connected to the dosing channel 4.1 of the cooling body 1 via a fluid line 5. For this purpose, a fluid connection can be formed in the housing base 7.3, for example, through which the fluid line 5 is connected to the metering channel 4.1.

Im Betrieb fördert die Dosiereinrichtung 6 eine vorbestimmte Menge an Kühlflüssigkeit kontinuierlich zum Kühlkörper 1, wobei die dosierte Menge an Kühlflüssigkeit über die Dosieröffnung 4 im Nutgrund 3 der Kühlnut 2 zugeführt wird. Zur Abkühlung eines erwärmten Fadens wird der Faden bei Prozessbeginn zunächst über den Einfädelschlitz 11 ins Innere des Gehäuses 7 geführt und anschließend in den Einlassfadenführer 8.1, die Kühlnut 2 und den Auslassfadenführer 9.1 gelegt. Der Faden durchläuft die Kühlnut 2 mit Kontakt am Nutgrund 3. Dabei wird der Faden mit der Kühlflüssigkeit benetzt und gekühlt. Die dabei auftretenden Dämpfe sammeln sich im Gehäuse 7 und werden über die Saugöffnung 10 abgeführt. Hierbei wird ein kontinuierlicher Frischluftstrom über die Luftöffnung 12 in das Innere des Gehäuses 7 eingeleitet. Es stellt sich eine in Fadenlaufrichtung gleichmäßige Luftströmung ein, die die Abfuhr der Dämpfe oberhalb der Kühlnut 2 begünstigt. Darüberhinaus wird auf der Fadenauslassseite die Luftströmung genutzt, um an einem frei geführten Fadenabschnitt zwischen dem Kühlkörper 1 und dem Auslassfadenführer 9.1 lose anhaftende Kühlflüssigkeit vom Faden abzusaugen. Somit wird ein Austreten einer Restkühlflüssigkeit aus dem Gehäuse 7 vermieden. Durch die seitliche Anordnung des Einfädelschlitzes 11 am Gehäuse 7 lässt sich ebenfalls eine thermisch bedingte Ausgasung vermeiden. Die Umgebung des Gehäuses 7 bleibt somit im wesentlichen von Dämpfen und Restkühlflüssigkeit befreit.During operation, the metering device 6 continuously conveys a predetermined amount of cooling liquid to the heat sink 1, the metered amount of cooling liquid being supplied to the cooling groove 2 via the metering opening 4 in the groove base 3. To cool a heated thread, at the start of the process the thread is first guided into the interior of the housing 7 via the threading slot 11 and then placed in the inlet thread guide 8.1, the cooling groove 2 and the outlet thread guide 9.1. The thread passes through the cooling groove 2 with contact on the groove base 3. The thread is wetted with the cooling liquid and cooled. The vapors that occur collect in the housing 7 and are discharged via the suction opening 10. Here, a continuous stream of fresh air is introduced into the interior of the housing 7 via the air opening 12. An air flow that is uniform in the running direction of the thread is established, which favors the removal of the vapors above the cooling groove 2. In addition, the air flow on the thread outlet side is used to suck off loosely adhering cooling liquid from the thread on a freely guided thread section between the cooling body 1 and the outlet thread guide 9.1. This prevents residual cooling liquid from escaping from the housing 7. The lateral arrangement of the threading slot 11 on the housing 7 also prevents thermally induced outgassing. The surroundings of the housing 7 thus remain essentially free of vapors and residual cooling liquid.

Die erfindungsgemäße Vorrichtung zum Kühlen von Fäden ist daher besonders geeignet, um in Texturiermaschinen mit einer Vielzahl von Bearbeitungsstellen eingesetzt zu werden. So lassen sich eine Vielzahl von derartigen Vorrichtungen in einer Texturiermaschine einsetzen. Trotz intensiver Kühlung der Fäden durch Kühlflüssigkeiten treten keine Belastungen der Umgebung in der Texturiermaschine auf. Aufgrund des Einfädelschlitzes am Gehäuse sind schnelle und einfache Bedienvorgänge zum Anlegen des Fadens durch eine Bedienperson ausführbar.The device according to the invention for cooling threads is therefore particularly suitable for use in texturing machines with a large number of processing points. A large number of such devices can be used in a texturing machine. Despite intensive cooling of the threads by cooling fluids, there is no pollution of the environment in the texturing machine. Because of the threading slot on the housing, quick and simple operating procedures for applying the thread can be carried out by an operator.

Bei dem in Fig. 1 bis 4 dargestellten Ausführungsbeispiel ist die konstruktive Ausbildung des Kühlkörpers 1 bespielhaft. So kann der Kühlkörper mit oder ohne Nuttaschen im Nutgrund ausgebildet sein. Zudem können auch mehrere hintereinander angeordnete Kühlkörper vorgesehen sein, die gemeinsam in dem Gehäuse gekapselt sind. Wesentlich hierbei ist, dass die Umgebung der Kühlkörper durch das Gehäuse gekapselt ist und dass das Gehäuse einen zum Einfädeln der Fäden nutzbaren Einfädelschlitz aufweist.The in Figs. 1 to 4 The embodiment shown is the structural design of the heat sink 1 exemplary. The heat sink can be designed with or without slot pockets in the slot base. In addition, several heat sinks arranged one behind the other can also be provided which are encapsulated together in the housing. It is essential here that the area around the heat sink is encapsulated by the housing and that the housing has a threading slot that can be used for threading the threads.

Claims (9)

  1. Device for cooling a heated thread by a cooling member (1) which for guiding the thread has an elongate cooling groove (2), wherein the cooling groove (2) by way of a metering opening (4) in the groove base (3) is connected to a metering installation (6) for feeding a cooling liquid, characterized in that the cooling member (1) is encapsulated in a housing (7), and in that the housing (7) has a threading slot (11) for introducing the thread, said threading slot (11) extending between a thread inlet (8) and a thread outlet (9) on the housing (7).
  2. Device according to Claim 1, characterized in that the threading slot (11) is configured on a lateral housing wall (7.1) above the cooling groove (2) of the cooling member (1).
  3. Device according to Claim 2, characterized in that the cooling groove (2) has a curved groove base (3), and in that the threading slot (11) between the thread inlet (8) and the thread outlet (9) has a curvature which is at least partially equivalent to that of the groove base (3).
  4. Device according to one of Claims 1 to 3, characterized in that within the housing (7) the thread inlet (8) is assigned an inlet thread guide (8.1), and the thread outlet (9) is assigned an outlet thread guide (9.1), and in that the cooling member (1) extends between the thread guides (8.1, 9.1).
  5. Device according to one of Claims 1 to 4, characterized in that within the housing (7), in the region of the thread outlet (9), a suction opening (10) which is connectable to a suctioning installation (13) is configured on the housing (7).
  6. Device according to Claim 5, characterized in that the suction opening (10) is configured in a housing base (7.3) between the cooling member (1) and the thread outlet (9).
  7. Device according to Claim 6, characterized in that within the housing (7), in the region of the thread inlet (8), an air opening (12) which opens into an environment is configured on the housing (7).
  8. Device according to one of Claims 1 to 7, characterized in that the metering installation (6) is disposed outside the housing (7) and by way of a fluid line (5) is connected to the cooling member (1) in the interior of the housing (7).
  9. Device according to Claim 8, characterized in that the cooling groove (2) in a portion of the groove base (3) has a plurality of depressed groove pockets (3.1) which are in each case mutually separated by a guide web (3.2) in the groove base (3), wherein the metering opening (4) is configured in an upstream portion of the groove base (3).
EP17705115.8A 2016-10-08 2017-02-14 Device for cooling a warm yarn Active EP3523469B1 (en)

Applications Claiming Priority (2)

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DE102016012107 2016-10-08
PCT/EP2017/053249 WO2018065123A1 (en) 2016-10-08 2017-02-14 Device for cooling a heated thread

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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

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TW201814094A (en) 2018-04-16
CN109844195B (en) 2022-03-29
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JP6861807B2 (en) 2021-04-21
TWI765879B (en) 2022-06-01
CN109844195A (en) 2019-06-04
JP2019529734A (en) 2019-10-17
WO2018065123A1 (en) 2018-04-12

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