EP3312322B1 - Device for cooling a heated thread - Google Patents
Device for cooling a heated thread Download PDFInfo
- Publication number
- EP3312322B1 EP3312322B1 EP17195863.0A EP17195863A EP3312322B1 EP 3312322 B1 EP3312322 B1 EP 3312322B1 EP 17195863 A EP17195863 A EP 17195863A EP 3312322 B1 EP3312322 B1 EP 3312322B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- groove
- cooling
- thread
- guide
- yarn
- 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.)
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Links
- 238000001816 cooling Methods 0.000 title claims description 96
- 239000000110 cooling liquid Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- 239000002826 coolant Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Images
Classifications
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- 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
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- 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
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- 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
- D02J13/008—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass with elimination of fumes
Definitions
- the invention relates to a device for cooling a heated thread according to the preamble of claim 1.
- a generic device is for example in the EP 0 403 098 A2 described.
- a cooling body is provided with a cooling groove having a plurality of recessed Nuttaschen in the groove bottom of the cooling groove.
- the cooling groove is coupled via a capillary with a coolant reservoir, so that a cooling liquid is kept continuously in the cooling groove.
- the heated thread is guided by contact through the cooling groove and cooled by the cooling liquid. Subsequently, the thread is passed over a subsequent cooling rail.
- the heat sink forms a relatively short cooling section, wherein the excess cooling liquid is collected at the end of the heat sink and returned to a tank.
- texturing machines which consist of a plurality of such devices for cooling a heated thread, therefore facilities for collecting and processing the coolant liquid losses are required.
- devices for cooling heated threads have not been able to prevail.
- the preparation of the excess coolant is associated with a high expenditure on equipment.
- the cooling groove has a plurality of guide portions with a grooved groove bottom and at least one guide portion with a smooth groove bottom, which are formed alternately one behind the other and that the metering one of the guide portions with grooved groove bottom in a Inlet region of the cooling groove is arranged upstream.
- the invention has recognized that a corrugated groove bottom of the cooling groove considerably intensifies the wetting of the thread in the inlet region of the cooling groove.
- a continuous looping of the yarn supplied to the cooling liquid is prevented by the corrugation in the groove bottom.
- the corrugation in the groove base is suitable for stripping the adhering to the thread unevaporated coolant liquid residues and to keep in the cooling groove.
- the thread can be evenly wetted over a longer distance, so that the generated cooling effects are intensified.
- at least one guide section with a smooth groove base is provided, in which the thread is cooled by the previously supplied cooling liquid.
- the different guide sections of the cooling groove therefore favor intensive cooling with minimal supply of cooling liquid.
- the cooling effect within the cooling groove can be further improved by the guide section with the smooth groove bottom has a larger groove depth, as the guide sections with the corrugated groove bottom. This allows the thread to be guided through the cooling groove with and without contact. In the guide section with a smooth groove bottom, the thread receives no contact, so that only the cooling liquid acts to cool the thread.
- the corrugated groove bottoms of the guide sections are each formed by a plurality of recessed groove pockets and a plurality of a plurality of guide webs lying between the nut pockets. The thread can thus pass through the cooling groove with contact on the guide webs.
- the length of the cooling groove is generally selected depending on the respective thread to be cooled and its yarn denier. For example, threads with relatively large thread ends require relatively long cooling grooves.
- the development of the invention is preferably carried out, in which the guide sections each have a longitudinal section of the cooling groove in the range from 10 mm to 60 mm.
- the guide sections of the cooling groove in such a way that the groove bases in the thread running direction have a guide curvature with a radius in a range of 300 mm to 1000 mm ,
- the groove bases in the thread running direction have a guide curvature with a radius in a range of 300 mm to 1000 mm .
- the guide sections of the cooling groove can basically be formed in a one-piece heat sink.
- the development of the invention is preferably carried out, in which the guide portions of the cooling groove are formed by a plurality of successively arranged segments of the heat sink, which are held by a carrier.
- the composite segments thus provide the heat sink with the cooling groove required for the thread guide.
- the development of the invention has proven particularly useful, in which the segments of the heat sink are formed with the guide portion with grooved groove bottom and the segments of the heat sink with the guide portion with smooth groove bottom of different materials.
- the segments that are required for the thread contact in the cooling groove run with appropriate wear-resistant materials.
- the inventive development of the invention is particularly advantageous in which the heat sink is disposed within a housing between a yarn inlet and a yarn outlet and formed in the region of the yarn outlet a suction opening on the housing, which is connectable to a suction device , This prevents any vapors from entering the environment when the thread cools.
- the suction opening in a housing bottom between the heat sink and the yarn outlet.
- the suction flow can be advantageously used to suck a freely guided thread section before exiting the housing.
- the development of the invention is preferably carried out in which the thread inlet of the housing is assigned an inlet yarn guide and the yarn outlet of the housing an outlet yarn.
- a reproducible thread guide can be set advantageously.
- a special orientation of the heat sink within a textile machine is not required.
- the device according to the invention is therefore particularly suitable for use in texturing machines with a large number of processing stations. Every processing point is an equal treatment and thus a uniform cooling by the device according to the invention executable.
- FIGS. 1 . 2.1 and 2.2 a first embodiment of the inventive device for cooling a heated yarn is shown schematically in several views.
- FIG. 1 shows the embodiment in a longitudinal sectional view and the Figures 2.1 and 2.2 Two cross-sectional views of the embodiment are shown. Unless an explicit reference is made to one of the figures, the following description applies to both figures.
- the exemplary embodiment has an elongated heat sink 1.
- the cooling groove 2 extends up to the front ends of the heat sink 1.
- the cooling groove 2 thus forms a thread inlet 7 at the front ends and a thread outlet 8 at the opposite ends.
- the cooling groove 2 has a plurality of guide sections 6.1 with a corrugated groove base 4.1 and a plurality of guide sections 6.2 with a smooth groove base 4.2.
- the guide sections 6.1 and 6.2 are formed alternately in the direction of yarn travel in the cooling groove 2.
- the thread inlet 7 is assigned a first guide section 6.1 with the corrugated groove bottom 4.1.
- the ribbed groove bottom 4.1 of the first guide section 6.1 is preceded by a one-start region 20, in which a metering opening 3 opens.
- the metering opening 3 is connected via a metering channel within the heat sink 1 with a fluid line 5.1.
- the fluid line 5.1 is coupled to a metering device 5, which has a dosing 5.2 and a container 5.3.
- the dosing 5.2 is preferably designed as a metering pump, wherein in the container 5.3 a cooling liquid is kept.
- the guide sections 6.1 and 6.2 have different groove depths in their respective groove base 4.1 and 4.2.
- the Figure 2.1 shows a cross section of a guide section 6.1 with the corrugated groove bottom 4.1.
- the corrugated groove bottom 4.1 is formed by a plurality of recessed nutt pockets 9 and a plurality of guide webs 10, which protrude between the Nuttaschen 9.
- the guide webs 10 have a groove depth, which is identified by the reference numeral.
- the Nuttaschen 9 are recessed formed in the heat sink 1 and have a larger groove depth, which is denoted by the reference numeral t 3 in Figure 2.1 is marked.
- the guide webs 10 are designed with a web width that is only a few millimeters. Likewise, the Nuttaschen have a small width of a few millimeters.
- Figure 2.2 is a cross-sectional view of a guide section 6.2 shown with the smooth groove bottom 4.2.
- the smooth groove bottom 4.2 has a groove depth, the in Figure 2.2 is designated by the reference symbol t 2 .
- the groove depth t 2 of the smooth groove base 4.2 is made slightly larger than the groove depth t 1 of the corrugated groove base 4.1.
- the guide sections 6.1 and 6.2 of the cooling groove 2 are arranged relative to one another such that the groove bases 4.1 and 4.2 form a guide curvature with a radius R in the thread running direction.
- the radius R of the guide curvature is in the range of 300 mm to 1000 mm.
- a cooling liquid is metered in small quantities fed to the guide section 6.1 in the region of the thread inlet 7 via the metering device 5. Due to the running thread, the cooling liquid is partly absorbed directly and distributed over the corrugated structure of the groove base 4.1. This achieves a relatively long contact zone for wetting the thread.
- the guide section 6.1 has a longitudinal section L 1 which, depending on the thread titer, has a range of 20 mm to 60 mm.
- the guide section 6.2 also has a longitudinal section of the cooling groove 2, which has an equal length depending on the thread titer.
- the length section is in FIG. 1 denoted by the reference L 2 and is in the range of 10 mm to 60 mm.
- the cooling groove 2 follows a contact zone with the corrugated groove bottom 4.1 and a non-contact zone with the smooth groove bottom 4.2 and another the thread outlet 8 associated guide section 6.1 with grooved groove bottom 4.1.
- the middle guide section 6.1 with the corrugated groove base 4.1 removes the excess cooling fluid from the thread and at the same time leads to a homogenization of the wetting in order to obtain further cooling.
- the thread is led out without substantially adhering excess coolant from the cooling groove 2.
- the heat sink is usually encapsulated in a housing.
- FIG. 3 a further embodiment of the inventive device for cooling a heated yarn in a longitudinal sectional view shown schematically.
- the heat sink 1 is formed by a plurality of segments 11.1 to 11.7, each having a portion of the open cooling groove 2 on its upper side.
- the segments 11.1 to 11.7 are arranged one behind the other and held by a carrier 12.
- Each of the segments 11.1 to 11.7 here forms a guide section 6.1 with a corrugated groove base 4.1 or a guide section 6.2 with a smooth groove base 4.2.
- the guide sections 6.1 or 6.2 formed by the segments 11.1 to 11.7 are identical in their cross section to the exemplary embodiments according to FIGS. 2.1 and 2.2 executed. In that regard, a thread is guided with contact on the segments 11.1, 11.3, 11.5 and 11.7.
- the segments 11.2, 11.4 and 11.6 have a smooth groove base 4.2, so that the thread is guided here without contact.
- the heat sink 1 formed by the support 12 and the segments 11.1 to 11.7 is arranged inside a housing 13.
- the housing 13 surrounds the heat sink 1, wherein the heat sink 1 is disposed within the housing 13 between a yarn inlet 14 and a yarn outlet 15.
- the yarn inlet 14 is formed by a yarn inlet yarn guide 14.1 and the yarn outlet 15 by the yarn outlet yarn guide 15.1.
- the thread guides 14.1 and 15.1 could be arranged independently of the thread inlet 14 and the thread outlet 15 in the interior of the housing 13 or else outside the housing 13.
- the inlet thread guide 14.1 and the outlet thread guide 15.1 are arranged at a short distance from the front ends of the heat sink 1.
- the guide grooves of the thread guides 14.1 and 9.1 cooperate with the groove bottom 4.1 of the cooling groove 2 for thread guidance.
- a suction opening 17 is formed inside the housing 13 in a housing bottom 16.
- the suction port 17 is disposed between the front end of the heat sink 1 and the Auslassfadenmony 15.1.
- the suction opening 17 is coupled via a suction line 18 with a suction device, not shown here.
- the housing 13 On the opposite side in the inlet region, the housing 13 has an air opening 19.
- the air opening 19 is formed in the region between the inlet yarn guide 14.1 and the front end of the heat sink 1.
- the air opening 19 opens in an environment of the housing thirteenth
- the supply of a cooling liquid is ensured by a metering device 5, which is arranged outside the housing.
- the metering device 5 has a metering means 5.2, for example a metering pump and a container 5.3, which is filled with a cooling liquid.
- the dosing 5.2 is connected via a fluid line 5.1 with the dosing 3.1 in the first segment 11.1 of the heat sink 1.
- the metering device 5 conveys a predetermined amount of cooling liquid continuously via the metering opening 3 into the inlet region 20 of the cooling groove 2.
- the inlet region 20 is arranged in the first segment 11.1 upstream of the guide section 6.1.
- the inlet region 20 in the cooling groove 2 in this case has a substantially identical groove depth to the corrugated groove bottom 4.1.
- the thread is threaded into the housing 13 at the beginning of the process.
- the yarn is guided through the cooling groove 2 through the inlet yarn guide 14.1 and the exhaust yarn guide 15.1.
- the thread passes through the cooling groove 2 with contact with the corrugated groove bases 4.1 of the guide sections 6.1.
- a total of four segments 11.1, 11.3, 11.5 and 11.7 are provided to guide the thread with contact in the cooling groove 2.
- the thread is wetted with the cooling liquid and cooled by evaporation of the cooling liquid.
- the resulting vapors accumulate in the housing 13 and are discharged through the suction port 17.
- a continuous stream of fresh air is introduced via the air opening 19 into the interior of the housing 13.
- the device according to the invention for cooling a heated thread is particularly suitable for being used side by side in a texturing machine with a plurality of processing stations.
- a variety of such devices can be used in a texturing machine.
- intensive cooling of the threads by the cooling liquid no stresses on the environment occur in the texturing machine. Due to the very low amounts of residual liquid collecting and processing of the cooling liquid after cooling of the thread is not required.
- the number of different guide portions of the cooling groove is exemplary.
- a guide section with a grooved groove bottom is required at least at the thread inlet and at the thread outlet of the cooling groove.
- the cooling groove would only have a single guide section with a smooth groove bottom in the middle area.
- the lengths of the different guide sections can be the same or different lengths.
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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)
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
Bei der Herstellung von synthetischen Fäden ist es bekannt,
dass die nach einem Schmelzspinnen erzeugten glatten Fäden in einem Texturierprozess eine Kräuselung erhalten. Hierzu wird an den Fäden innerhalb einer so genannten Texturierzone ein Falschdrall erzeugt, der durch thermische Behandlung in den Filamenten des Fadens fixiert wird. So ist es üblich, den synthetischen Faden in der Texturierzone zunächst auf eine Temperatur im Bereich von 200° C zu erwärmen. 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. Die Kühlung des Fadens wird 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 eine ausreichende Abkühlung des Fadens zu erhalten. Zudem ist zur Vermeidung starker Reibungen eine Fadenführung erforderlich, die mit möglichst geringen Umschlingungen einen vorzeitigen Verschleiß der Kühlschiene verhindert.In the production of synthetic threads it is known
in that the smooth threads produced after melt-spinning receive a crimp in a texturing process. For this purpose, a false twist is generated on the threads within a so-called texturing zone, which is fixed by thermal treatment in the filaments of the thread. Thus, it is customary to first heat the synthetic thread in the texturing zone to a temperature in the range of 200 ° C. The thereby achieved plastic state of the thread material causes the swirl memorizes in the individual filaments of the thread. To fix this thread structure, the thread is then immediately cooled to a temperature of about 80 ° C. The cooling of the thread is preferably carried out by an air-cooled cooling rail, on whose surface the thread is guided with contact. However, such cooling rails basically have the disadvantage that relatively long cooling distances are required to obtain a sufficient cooling of the thread. In addition, a thread guide is required to avoid strong friction that prevents premature wear of the cooling rail with the least possible wraps.
Im Stand der Technik sind jedoch auch andere Vorrichtungen zur Kühlung eines erwärmten Fadens bekannt, bei welcher die Kühlung des Fadens mit Hilfe einer Kühlflüssigkeit durchgeführt wird, um möglichst kurze Kühlstrecken realisieren zu können. Von einem derartigen Stand der Technik geht die Erfindung aus.In the prior art, however, other devices for cooling a heated yarn are known in which the cooling of the yarn is carried out with the aid of a cooling liquid to the shortest possible cooling sections to be able to realize. The invention is based on such a state of the art.
Eine gattungsgemäße Vorrichtung ist beispielsweise in der
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. In Texturiermaschinen, die über eine Vielzahl derartiger Vorrichtungen zum Kühlen eines erwärmten Fadens bestehen, sind daher Einrichtungen zum Auffangen und Aufbereiten der Kühlflüssigkeitsverluste erforderlich. Insbesondere unter Berücksichtigung der Auflagen zum Umweltschutz haben sich derartige Vorrichtungen zum Kühlen von erwärmten Fäden bisher nicht durchsetzen können. Die Aufbereitung der überschüssigen Kühlflüssigkeit ist mit einem hohen apparativen Aufwand verbunden.In the known device, the heat sink forms a relatively short cooling section, wherein the excess cooling liquid is collected at the end of the heat sink and returned to a tank. In texturing machines, which consist of a plurality of such devices for cooling a heated thread, therefore facilities for collecting and processing the coolant liquid losses are required. In particular, taking into account the requirements for environmental protection, such devices for cooling heated threads have not been able to prevail. The preparation of the excess coolant is associated with a high expenditure on equipment.
Es ist nun Aufgabe der Erfindung, eine gattungsgemäße Vorrichtung zum Kühlen eines erwärmten Fadens derart weiterzubilden, dass der Faden mit einer möglichst geringen Menge an Kühlflüssigkeit ausreichend kühlbar ist. Insoweit ist es auch Ziel der Erfindung, die gattungsgemäße Vorrichtung zum Kühlen eines erwärmten Fadens derart zu verbessern, dass möglichst geringe Kühlflüssigkeitsüberschussmengen auftreten.It is an object of the invention to develop a generic device for cooling a heated thread such that the thread with a minimum amount of cooling liquid is sufficiently coolable. In that regard, it is also an object of the invention to improve the generic device for cooling a heated yarn such that the smallest possible amounts of excess coolant liquid occur.
Diese Aufgabe wird mit einer Vorrichtung zum Kühlen eines erwärmten Fadens dadurch gelöst, dass die Kühlnut mehrere Führungsabschnitte mit einem geriffelten Nutgrund und zumindest einem Führungsabschnitt mit einem glatten Nutgrund aufweist, die abwechselnd hintereinander ausgebildet sind und dass die Dosieröffnung einem der Führungsabschnitte mit geriffeltem Nutgrund in einem Einlaufbereich der Kühlnut vorgeordnet ist.This object is achieved with a device for cooling a heated yarn in that the cooling groove has a plurality of guide portions with a grooved groove bottom and at least one guide portion with a smooth groove bottom, which are formed alternately one behind the other and that the metering one of the guide portions with grooved groove bottom in a Inlet region of the cooling groove is arranged upstream.
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 feature combinations of the respective subclaims.
Die Erfindung hat erkannt, dass ein geriffelter Nutgrund der Kühlnut im Einlaufbereich der Kühlnut die Benetzung des Fadens erheblich intensiviert. So wird ein kontinuierliches Mitschleifen der dem Faden zugeführten Kühlflüssigkeit durch die Riffelung im Nutgrund unterbunden. Andererseits ist die Riffelung im Nutgrund geeignet, um die an dem Faden anhaftenden nicht verdampften Kühlflüssigkeitsreste abzustreifen und in der Kühlnut zu halten. So lässt sich der Faden über eine längere Strecke gleichmäßig benetzen, so dass die erzeugten Kühleffekte intensiviert werden. Um diese Effekte zum Kühlen des Fadens vollständig nutzen zu können, ist zumindest ein Führungsabschnitt mit einem glatten Nutgrund vorgesehen, in welchem der Faden durch die zuvor zugeführte Kühlflüssigkeit gekühlt wird. Die unterschiedlichen Führungsabschnitte der Kühlnut begünstigen daher eine intensive Kühlung mit minimaler Kühlflüssigkeitszufuhr.The invention has recognized that a corrugated groove bottom of the cooling groove considerably intensifies the wetting of the thread in the inlet region of the cooling groove. Thus, a continuous looping of the yarn supplied to the cooling liquid is prevented by the corrugation in the groove bottom. On the other hand, the corrugation in the groove base is suitable for stripping the adhering to the thread unevaporated coolant liquid residues and to keep in the cooling groove. Thus, the thread can be evenly wetted over a longer distance, so that the generated cooling effects are intensified. To be able to fully utilize these effects for cooling the thread, at least one guide section with a smooth groove base is provided, in which the thread is cooled by the previously supplied cooling liquid. The different guide sections of the cooling groove therefore favor intensive cooling with minimal supply of cooling liquid.
Der Kühleffekt innerhalb der Kühlnut lässt sich noch dadurch verbessern, indem der Führungsabschnitt mit dem glatten Nutgrund eine größere Nuttiefe aufweist, als die Führungsabschnitte mit dem geriffelten Nutgrund. So lässt sich der Faden mit und ohne Kontakt durch die Kühlnut führen. In dem Führungsabschnitt mit glattem Nutgrund erhält der Faden keinen Kontakt, so dass allein die Kühlflüssigkeit zur Kühlung des Fadens wirkt.The cooling effect within the cooling groove can be further improved by the guide section with the smooth groove bottom has a larger groove depth, as the guide sections with the corrugated groove bottom. This allows the thread to be guided through the cooling groove with and without contact. In the guide section with a smooth groove bottom, the thread receives no contact, so that only the cooling liquid acts to cool the thread.
Damit der Faden innerhalb der Kühlnut eine sichere Führung erhält, sind die geriffelten Nutgründe der Führungsabschnitte jeweils durch eine Mehrzahl von vertieften Nuttaschen und eine Mehrzahl von mehreren zwischen den Nuttaschen liegenden Führungsstegen gebildet. Der Faden kann somit mit Kontakt an den Führungsstegen die Kühlnut durchlaufen.So that the thread receives a secure guidance within the cooling groove, the corrugated groove bottoms of the guide sections are each formed by a plurality of recessed groove pockets and a plurality of a plurality of guide webs lying between the nut pockets. The thread can thus pass through the cooling groove with contact on the guide webs.
Die Länge der Kühlnut wird im Allgemeinen in Abhängigkeit von dem jeweils zu kühlenden Faden und dessen Fadentiter gewählt. So erfordern Fäden mit relativ großen Fadentitern relativ lange Kühlnuten. Um bei jedem Fadentyp die erfindungsgemäße Wirkung zur effektiven Kühlung zu erhalten, ist die Weiterbildung der Erfindung bevorzugt ausgeführt, bei welchem die Führungsabschnitte jeweils einen Längenabschnitt der Kühlnut im Bereich von 10 mm bis 60 mm aufweisen.The length of the cooling groove is generally selected depending on the respective thread to be cooled and its yarn denier. For example, threads with relatively large thread ends require relatively long cooling grooves. In order to obtain the effective cooling effect according to the invention for each thread type, the development of the invention is preferably carried out, in which the guide sections each have a longitudinal section of the cooling groove in the range from 10 mm to 60 mm.
So ist es üblich, bei großen Fadentitern und dementsprechend langen Kühlnuten mehrere der Führungsabschnitte mit glattem Nutgrund einzubinden. Dabei schließen die Führungsabschnitte mit dem glatten Nutgrund jeweils immer einen der Führungsabschnitte mit dem geriffelten Nutgrund ein, so dass ein ständiger Wechsel zwischen einer Kontaktzone und einer Nicht-kontaktzone in der Kühlnut vorherrscht.Thus, it is customary to incorporate with large yarn tents and correspondingly long cooling grooves, several of the guide sections with a smooth groove bottom. The guide sections close with the smooth groove base respectively always one of the guide portions with the corrugated groove bottom, so that a constant change between a contact zone and a non-contact zone prevails in the cooling groove.
Damit der Faden auch bei größeren Längen der Kühlnut sicher im Nutgrund der Kühlnut geführt wird, ist des Weiteren vorgesehen, die Führungsabschnitte der Kühlnut derart zueinander anzuordnen, dass die Nutgründe in Fadenlaufrichtung eine Führungskrümmung mit einem Radius in einem Bereich von 300 mm bis 1000 mm aufweisen. Insbesondere in einer Texturiermaschine können somit stärkere Fadenumlenkungen ohne zusätzliche Verschleißerhöhung erreicht werden.So that the yarn is securely guided in the groove base of the cooling groove even with larger lengths of the cooling groove, it is further provided to arrange the guide sections of the cooling groove in such a way that the groove bases in the thread running direction have a guide curvature with a radius in a range of 300 mm to 1000 mm , In particular, in a texturing machine thus stronger thread deflections can be achieved without additional increase in wear.
Die Führungsabschnitte der Kühlnut lassen sich grundsätzlich in einem einteiligen Kühlkörper ausbilden. Für die Herstellung derartiger Kühlnuten ist jedoch die Weiterbildung der Erfindung bevorzugt ausgeführt, bei welcher die Führungsabschnitte der Kühlnut durch mehrere hintereinander angeordnete Segmente des Kühlkörpers gebildet sind, die durch einen Träger gehalten sind. Die zusammengesetzten Segmente ergeben somit den Kühlkörper mit der zur Fadenführung erforderlichen Kühlnut.The guide sections of the cooling groove can basically be formed in a one-piece heat sink. For the preparation of such cooling grooves, however, the development of the invention is preferably carried out, in which the guide portions of the cooling groove are formed by a plurality of successively arranged segments of the heat sink, which are held by a carrier. The composite segments thus provide the heat sink with the cooling groove required for the thread guide.
Dabei hat sich die Weiterbildung der Erfindung besonders bewährt, bei welcher die Segmente des Kühlkörpers mit dem Führungsabschnitt mit geriffeltem Nutgrund und die Segmente des Kühlkörpers mit dem Führungsabschnitt mit glattem Nutgrund aus unterschiedlichen Materialien gebildet sind. So lassen sich die Segmente, die für den Fadenkontakt in der Kühlnut erforderlich sind, mit entsprechend verschleißbeständigen Materialien ausführen.In this case, the development of the invention has proven particularly useful, in which the segments of the heat sink are formed with the guide portion with grooved groove bottom and the segments of the heat sink with the guide portion with smooth groove bottom of different materials. Thus, the segments that are required for the thread contact in the cooling groove, run with appropriate wear-resistant materials.
Damit die unmittelbare Maschinenumgebung unbelastet bleibt, ist die erfindungsgemäße Weiterbildung der Erfindung besonders vorteilhaft, bei welcher der Kühlkörper innerhalb eines Gehäuses zwischen einem Fadeneinlass und einem Fadenauslass angeordnet ist und das im Bereich des Fadenauslasses eine Saugöffnung am Gehäuse ausgebildet ist, die an eine Absaugeinrichtung anschließbar ist. So wird verhindert, dass auftretende Dämpfe beim Kühlen des Fadens ungehindert in die Umgebung treten.So that the immediate machine environment remains unloaded, the inventive development of the invention is particularly advantageous in which the heat sink is disposed within a housing between a yarn inlet and a yarn outlet and formed in the region of the yarn outlet a suction opening on the housing, which is connectable to a suction device , This prevents any vapors from entering the environment when the thread cools.
Um auch noch mögliche Kühlflüssigkeitsreste gemeinsam mit den Dämpfen abzuführen, ist des Weiteren vorgesehen, die Saugöffnung in einem Gehäuseboden zwischen dem Kühlkörper und dem Fadenauslass auszubilden. So lässt sich der Saugstrom vorteilhaft nutzen, um einen frei geführten Fadenabschnitt vor dem Austreten aus dem Gehäuse zu besaugen.In order to dissipate any remaining cooling liquid together with the vapors, it is further provided to form the suction opening in a housing bottom between the heat sink and the yarn outlet. Thus, the suction flow can be advantageously used to suck a freely guided thread section before exiting the housing.
Um die Vorrichtung zum Kühlen des Fadens möglichst flexibel in einem Maschinengestell beziehungsweise in einem Fadenlauf integrieren zu können, ist die Weiterbildung der Erfindung bevorzugt ausgeführt, bei welcher dem Fadeneinlass des Gehäuses ein Einlassfadenführer und dem Fadenauslass des Gehäuses ein Auslassfadenführer zugeordnet ist. Damit kann eine reproduzierbare Fadenführung vorteilhaft eingestellt werden. Eine besondere Ausrichtung des Kühlkörpers innerhalb einer Textilmaschine ist nicht erforderlich.To be able to integrate the device for cooling the thread as flexibly as possible in a machine frame or in a threadline, the development of the invention is preferably carried out in which the thread inlet of the housing is assigned an inlet yarn guide and the yarn outlet of the housing an outlet yarn. Thus, a reproducible thread guide can be set advantageously. A special orientation of the heat sink within a textile machine is not required.
Die erfindungsgemäße Vorrichtung ist daher besonders geeignet, um in Texturiermaschinen mit einer Vielzahl von Bearbeitungsstellen eingesetzt zu werden. Jeder Bearbeitungsstelle ist eine Gleichbehandlung und somit eine gleichmäßige Kühlung durch die erfindungsgemäße Vorrichtung ausführbar.The device according to the invention is therefore particularly suitable for use in texturing machines with a large number of processing stations. Every processing point is an equal treatment and thus a uniform cooling by the device according to the invention executable.
Die erfindungsgemäße Vorrichtung zum Kühlen eines erwärmten Fadens wird nachfolgend anhand mehrerer Ausführungsbeispiele 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 with reference to several embodiments with reference to the accompanying figures.
Es stellen dar:
-
schematisch eine Längsschnittansicht eines ersten Ausführungsbeispiels der erfindungsgemäßen VorrichtungFigur 1 -
Figur 2.1 und Figur 2.2 schematisch mehrere Querschnittsansichten des Ausführungsbeispiels ausFigur 1 -
schematisch eine Längsschnittansicht eines weiteren Ausführungsbeispiels der erfindungsgemäßen VorrichtungFigur 3
-
FIG. 1 schematically a longitudinal sectional view of a first embodiment of the device according to the invention -
Figure 2.1 and Figure 2.2 schematically a plurality of cross-sectional views of the embodimentFIG. 1 -
FIG. 3 schematically a longitudinal sectional view of another embodiment of the device according to the invention
In den
Das Ausführungsbeispiel weist einen länglichen Kühlkörper 1 auf. An einer Oberseite des Kühlkörpers 1 erstreckt sich eine offene Kühlnut 2. Die Kühlnut 2 erstreckt sich bis zu den Stirnenden des Kühlkörpers 1. Die Kühlnut 2 bildet somit an den Stirnenden einen Fadeneinlauf 7 und an den gegenüberliegenden Stirnenden einen Fadenauslauf 8.The exemplary embodiment has an elongated
Um einen Faden zwischen dem Fadeneinlauf 7 und dem Fadenauslauf 8 innerhalb der Kühlnut 2 zu führen, weist die Kühlnut 2 mehrere Führungsabschnitte 6.1 mit einem geriffelten Nutgrund 4.1 und mehrere Führungsabschnitte 6.2 mit einem glatten Nutgrund 4.2 auf. Die Führungsabschnitte 6.1 und 6.2 sind in Fadenlaufrichtung abwechselnd in der Kühlnut 2 ausgebildet.In order to guide a thread between the
Dem Fadeneinlauf 7 ist ein erster Führungsabschnitt 6.1 mit dem geriffelten Nutgrund 4.1 zugeordnet. Dem geriffelten Nutgrund 4.1 des ersten Führungsabschnittes 6.1 ist ein Einalufbereich 20 vorgeordnet, in welchem eine Dosieröffnung 3 mündet. Die Dosieröffnung 3 ist über einen Dosierkanal innerhalb des Kühlkörpers 1 mit einer Fluidleitung 5.1 verbunden. Die Fluidleitung 5.1 ist mit einer Dosiereinrichtung 5 gekoppelt, die eine Dosiermittel 5.2 und einen Behälter 5.3 aufweist. Das Dosiermittel 5.2 ist vorzugsweise als eine Dosierpumpe ausgebildet, wobei in dem Behälter 5.3 eine Kühlflüssigkeit vorgehalten ist.The
Wie in der Darstellung aus
Die
In
Wie aus der Darstellung in
Im Betrieb wird über die Dosiereinrichtung 5 eine Kühlflüssigkeit in kleinen Mengen dosiert dem Führungsabschnitt 6.1 im Bereich des Fadeneinlaufs 7 zugeführt. Durch den laufenden Faden wird die Kühlflüssigkeit zum Teil unmittelbar aufgenommen und über die geriffelte Struktur des Nutgrundes 4.1 verteilt. Damit wird eine relativ lange Kontaktzone zur Benetzung des Fadens erreicht. Der Führungsabschnitt 6.1 weist hierzu einen Längenabschnitt L1 auf, der je nach Fadentiter einen Bereich von 20 mm bis 60 mm aufweist.In operation, a cooling liquid is metered in small quantities fed to the guide section 6.1 in the region of the
Im weiteren Verlauf der Kühlnut 2 folgt eine Nicht-Kontaktzone, bei welchem der Faden in einem der Führungsabschnitte 6.2 ohne Kontakt geführt wird. In diesem Abschnitt wirkt die aufgetragene Flüssigkeit zur Kühlung des Fadens. Der Führungsabschnitt 6.2 weist ebenfalls einen Längenabschnitt der Kühlnut 2 auf, der je nach Fadentiter eine gleiche Länge besitzt. Der Längenabschnitt ist in
Im weiteren Verlauf der Kühlnut 2 folgt eine Kontaktzone mit dem geriffelten Nutgrund 4.1 sowie eine Nicht-Kontaktzone mit dem glatten Nutgrund 4.2 und eine weitere dem Fadenauslauf 8 zugeordneten Führungsabschnitt 6.1 mit geriffeltem Nutgrund 4.1. Der mittlere Führungsabschnitt 6.1 mit dem geriffelten Nutgrund 4.1 nimmt einerseits die überschüssige Kühlflüssigkeit von dem Faden ab und führt gleichzeitig zu einer Vergleichmäßigung der Benetzung, um weitere Kühlung zu erhalten. Im letzten Führungsabschnitt 6.1 am Fadenauslauf 8 wird der Faden im Wesentlichen ohne anhaftende überschüssige Kühlflüssigkeit aus der Kühlnut 2 herausgeführt.In the course of the cooling
Durch die abwechselnde Kombination zwischen geriffelten Nutgründen 4.1 und glatten Nutgründen 4.2 wird eine intensive Kühlung des Fadens mit minimalem Kühlflüssigkeitseinsatz erreicht. Ein Überschuss an Kühlflüssigkeit lässt sich dadurch vorteilhaft vermeiden.Due to the alternating combination of fluted groove bases 4.1 and smooth groove bases 4.2, intensive cooling of the thread with minimal use of cooling liquid is achieved. An excess of cooling liquid can be advantageously avoided.
Um die bei der Kühlung auftretenden Dämpfe nicht in die Maschinenumgebung abzugeben, ist der Kühlkörper üblicherweise in einem Gehäuse gekapselt. Hierzu ist in
Der durch den Träger 12 und die Segmente 11.1 bis 11.7 gebildete Kühlkörper 1 ist innerhalb eines Gehäuses 13 angeordnet. Das Gehäuse 13 umschließt den Kühlkörper 1, wobei der Kühlkörper 1 innerhalb des Gehäuses 13 zwischen einem Fadeneinlass 14 und einem Fadenauslass 15 angeordnet ist. In diesem Ausführungsbeispiel wird der Fadeneinlass 14 durch einen Fadeneinlassfadenführer 14.1 und der Fadenauslass 15 durch den Fadenauslassfadenführer 15.1 gebildet. Grundsätzlich könnten die Fadenführer 14.1 und 15.1 unabhängig von dem Fadeneinlass 14 und dem Fadenauslass 15 im Inneren des Gehäuses 13 oder auch außerhalb des Gehäuses 13 angeordnet sein.The
In diesem Ausführungsbeispiel sind der Einlassfadenführer 14.1 und der Auslassfadenführer 15.1 mit kurzem Abstand zu den Stirnenden des Kühlkörpers 1 angeordnet. Hierbei wirken die Führungsnuten der Fadenführer 14.1 und 9.1 mit dem Nutgrund 4.1 der Kühlnut 2 zur Fadenführung zusammen.In this embodiment, the inlet thread guide 14.1 and the outlet thread guide 15.1 are arranged at a short distance from the front ends of the
Im Bereich des Fadenauslasses 15 ist eine Saugöffnung 17 innerhalb des Gehäuses 13 in einem Gehäuseboden 16 ausgebildet. Die Saugöffnung 17 ist zwischen dem Stirnende des Kühlkörpers 1 und dem Auslassfadenführer 15.1 angeordnet. Die Saugöffnung 17 ist über eine Saugleitung 18 mit einer hier nicht näher dargestellten Absaugeinrichtung gekoppelt.In the region of the
Auf der gegenüberliegenden Seite im Einlaufbereich weist das Gehäuse 13 eine Luftöffnung 19 auf. Die Luftöffnung 19 ist im Bereich zwischen dem Einlassfadenführer 14.1 und dem Stirnende des Kühlkörpers 1 ausgebildet. Die Luftöffnung 19 mündet in einer Umgebung des Gehäuses 13.On the opposite side in the inlet region, the
Die Zufuhr einer Kühlflüssigkeit wird durch eine Dosiereinrichtung 5 gewährleistet, die außerhalb des Gehäuses angeordnet ist. Die Dosiereinrichtung 5 weist hierzu ein Dosiermittel 5.2 beispielsweise eine Dosierpumpe und einen Behälter 5.3 auf, der mit einer Kühlflüssigkeit gefüllt ist. Das Dosiermittel 5.2 ist über eine Fluidleitung 5.1 mit dem Dosierkanal 3.1 in dem ersten Segment 11.1 des Kühlkörpers 1 verbunden.The supply of a cooling liquid is ensured by a
Im Betrieb fördert die Dosiereinrichtung 5 eine vorbestimmte Menge an Kühlflüssigkeit kontinuierlich über die Dosieröffnung 3 in den Einlaufbereich 20 der Kühlnut 2. Der Einlaufbereich 20 ist hierzu in dem ersten Segment 11.1 dem Führungsabschnitt 6.1 vorgeordnet. Den Einlaufbereich 20 in der Kühlnut 2 weist dabei eine im Wesentlichen identische Nuttiefe zu dem geriffelten Nutgrund 4.1 auf.In operation, the
Zur Abkühlung eines erwärmten Fadens, wird der Faden bei Prozessbeginn in das Gehäuse 13 eingefädelt. Der Faden wird hierbei durch den Einlassfadenführer 14.1 und den Auslassfadenführer 15.1 durch die Kühlnut 2 geführt. Der Faden durchläuft die Kühlnut 2 mit Kontakt zu den geriffelten Nutgründen 4.1 der Führungsabschnitte 6.1. In diesem Ausführungsbeispiel sind insgesamt die vier Segmente 11.1, 11.3, 11.5 und 11.7 vorgesehen, um den Faden mit Kontakt in der Kühlnut 2 zu führen. Dabei wird der Faden mit der Kühlflüssigkeit benetzt und durch Verdampfung der Kühlflüssigkeit gekühlt. Die dabei auftretenden Dämpfe sammeln sich im Gehäuse 13 und werden über die Saugöffnung 17 abgeführt. Hierbei wird ein kontinuierlicher Frischluftstrom über die Luftöffnung 19 in das Innere des Gehäuses 13 eingeleitet. Es stellt sich eine in Fadenlaufrichtung gleichmäßige Luftströmung ein, die die Abfuhr der Dämpfe oberhalb der Kühlnut 2 begünstigt. Darüber hinaus wird auf der Fadenauslassseite die Luftströmung genutzt, um an einem frei geführten Fadenabschnitt zwischen dem Kühlkörper 1 und dem Auslassfadenführer 15.1 lose anhaftende Restkühlflüssigkeit vom Faden abzusaugen. Damit lässt sich ein Austreten einer Restflüssigkeit aus dem Gehäuse 1 vermeiden.To cool a heated thread, the thread is threaded into the
Die erfindungsgemäße Vorrichtung zum Kühlen eines erwärmten Fadens ist besonders geeignet, um in einer Texturiermaschine mit einer Vielzahl von Bearbeitungsstellen nebeneinander eingesetzt zu werden. So lässt sich eine Vielzahl von derartigen Vorrichtungen in einer Texturiermaschine einsetzen. Trotz intensiver Kühlung der Fäden durch die Kühlflüssigkeit treten keine Belastungen der Umgebung in der Texturiermaschine auf. Aufgrund der sehr geringen Restflüssigkeitsmengen ist ein Auffangen und Aufbereiten der Kühlflüssigkeit nach der Abkühlung des Fadens nicht erforderlich.The device according to the invention for cooling a heated thread is particularly suitable for being used side by side in a texturing machine with a plurality of processing stations. Thus, a variety of such devices can be used in a texturing machine. Despite intensive cooling of the threads by the cooling liquid, no stresses on the environment occur in the texturing machine. Due to the very low amounts of residual liquid collecting and processing of the cooling liquid after cooling of the thread is not required.
Bei den gezeigten Ausführungsbeispielen ist die Anzahl der unterschiedlichen Führungsabschnitte der Kühlnut beispielhaft. Zur Fadenführung wird zumindest am Fadeneinlauf und am Fadenauslauf der Kühlnut ein Führungsabschnitt mit einem geriffelten Nutgrund erforderlich. Dabei hätte die Kühlnut nur einen einzigen Führungsabschnitt mit glattem Nutgrund im mittleren Bereich. Die Längen der unterschiedlichen Führungsabschnitte können gleich oder auch unterschiedlich lang ausgeführt sein.In the embodiments shown, the number of different guide portions of the cooling groove is exemplary. For thread guidance, a guide section with a grooved groove bottom is required at least at the thread inlet and at the thread outlet of the cooling groove. The cooling groove would only have a single guide section with a smooth groove bottom in the middle area. The lengths of the different guide sections can be the same or different lengths.
Claims (11)
- Apparatus for cooling a heated yarn with a heatsink (1) that has an elongated cooling groove (2) for guiding the yarn, wherein the cooling groove (2) is connected via a dosing opening (3) in the groove bottom (4.1, 4.2) to a dosing device (5) for supplying a cooling liquid, characterized in that the cooling groove (2) has a plurality of guide portions (6.1) with a ribbed groove bottom (4.1) and at least one guide portion (6.2) with a smooth groove bottom (4.2), which are formed alternately one after another, and in that the dosing opening (3) is arranged upstream of one of the guide portions (6.1) with a ribbed groove bottom (4.1) in a run-in region (20) of the cooling groove (2).
- Apparatus according to claim 1, characterized in that the guide portion (6.2) with the smooth groove bottom (4.2) has a greater groove depth (t2 > t1) than the guide portions (6.1) with the ribbed groove bottom (4.1).
- Apparatus according to claim 1 or 2, characterized in that the ribbed groove bottoms (4.1) of the guide portions (6.1) are each formed by a plurality of recessed groove pocket (9) and a plurality of multiple guide ribs (10) located between the groove pockets (9).
- Apparatus according to one of claims 1 to 3, characterized in that the guide portions (6.1, 6.2) each have a length portion of the cooling groove (2) in the range from 10 mm to 60 mm.
- Apparatus according to one of claims 1 to 4, characterized in that the cooling groove (2) has a plurality of the guide portions (6.2) with the smooth groove bottom (4.2), which each enclose at least one of the guide portions (6.1) with the ribbed groove bottom (4.1).
- Apparatus according to one of claims 1 to 5, characterized in that the guide portions (6.1, 6.2) of the cooling groove (2) are arranged with respect to one another such that the groove bottoms (4.1, 4.2) have a guiding curvature with a radius in the range from 300 mm to 1000 mm in the yarn running direction.
- Apparatus according to one of claims 1 to 6, characterized in that the guide portions (6.1, 6.2) of the cooling groove (2) are formed by a plurality of segments (11.1-11.7), arranged one after another, of the heatsink (1), said segments (11.1-11.7) being held by a carrier (12).
- Apparatus according to claim 7, characterized in that the segments (11.1-11.7) of the heatsink (1) with the guide portion (6.1) with a ribbed groove bottom (4.1) and the segments (11.1-11.7) of the heatsink (1) with the guide portion (6.2) with a smooth groove bottom (4.2) are formed from different materials.
- Apparatus according to one of claims 1 to 8, characterized in that the heatsink (1) is arranged within a housing (13) between a yarn inlet (14) and a yarn outlet (15), and in that a suction opening (17) is formed on the housing (13) in the region of the yarn outlet (15), said suction opening (17) being attachable to an extraction device.
- Apparatus according to claim 9, characterized in that the suction opening (17) is formed in a housing base (16) between the heatsink (1) and the yarn outlet (15).
- Apparatus according to claim 9 or 10, characterized in that the yarn inlet (14) of the housing (13) is assigned an inlet yarn guide (14.1) and the yarn outlet (15) of the housing (13) is assigned an outlet yarn guide (15.1).
Applications Claiming Priority (1)
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DE102016012519 | 2016-10-19 |
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WO2018087042A1 (en) * | 2016-11-11 | 2018-05-17 | Oerlikon Textile Gmbh & Co. Kg | Cooling apparatus for a synthetic thread |
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 |
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CH445714A (en) * | 1966-02-03 | 1967-10-31 | Heberlein & Co Ag | Suction device for a device for texturing textile yarns consisting at least partially of thermoplastic material |
GB1175841A (en) * | 1966-03-23 | 1969-12-23 | Scragg & Sons | Textile Apparatus |
US4926661A (en) * | 1989-03-15 | 1990-05-22 | E. I. Du Pont De Nemours And Company | Yarn finish applicator |
GB8913825D0 (en) | 1989-06-15 | 1989-08-02 | Rieter Scragg Ltd | Yarn texturing method and apparatus |
DE4227115A1 (en) * | 1991-08-26 | 1993-03-04 | Barmag Barmer Maschf | False twister yarn path - has surface structures to allow twist to travel back along the yarn |
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 |
DE19933990A1 (en) * | 1998-07-27 | 2000-02-03 | Barmag Barmer Maschf | Heat setting zone for false twist texturing of synthetic yarns comprises a first section with yarn in contact with heater and a second section without contact on heater surface |
DE10058543A1 (en) * | 2000-07-14 | 2002-01-24 | Temco Textilmaschkomponent | Method and device for the continuous treatment of synthetic threads in a heat exchange chamber |
DE102011018179A1 (en) * | 2011-04-19 | 2012-10-25 | Oerlikon Textile Gmbh & Co. Kg | Device for applying fluid to running multifilament thread, has non-contact and contact surfaces allowed to form surface portion in groove base along longitudinal direction with specific radius of curvature to enable wetting of thread |
CN202450222U (en) * | 2012-03-02 | 2012-09-26 | 江阴市大森电气有限公司 | Heat box |
CN202671772U (en) * | 2012-06-27 | 2013-01-16 | 浙江精功科技股份有限公司 | Deforming heat box of false twist texturing machine for spinning |
DE102012024853B4 (en) * | 2012-12-19 | 2024-03-21 | Oerlikon Textile Gmbh & Co. Kg | Dissecting thread guide |
CN203284556U (en) * | 2013-06-08 | 2013-11-13 | 苏州联优织造有限公司 | Doubling thread cooling device |
CN104233557A (en) * | 2013-06-08 | 2014-12-24 | 苏州联优织造有限公司 | Doubling thread cooling device |
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2017
- 2017-10-11 EP EP17195863.0A patent/EP3312322B1/en active Active
- 2017-10-17 CN CN201710977873.1A patent/CN107964714B/en active Active
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