EP3519617A1 - Verfahren und vorrichtung zum abkühlen eines synthetischen fadens - Google Patents
Verfahren und vorrichtung zum abkühlen eines synthetischen fadensInfo
- Publication number
- EP3519617A1 EP3519617A1 EP17704776.8A EP17704776A EP3519617A1 EP 3519617 A1 EP3519617 A1 EP 3519617A1 EP 17704776 A EP17704776 A EP 17704776A EP 3519617 A1 EP3519617 A1 EP 3519617A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- groove
- thread
- yarn
- cooling groove
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 146
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000110 cooling liquid Substances 0.000 claims description 35
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000012809 cooling fluid Substances 0.000 abstract description 7
- 230000007246 mechanism Effects 0.000 description 8
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000009736 wetting Methods 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
- D02J13/003—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one stationary surface, e.g. a plate
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
- D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
Definitions
- the invention relates to a method for cooling a synthetic thread according to the preamble of claim 1 and to a cooling device for carrying out the method according to the preamble of claim 6.
- a method for crimping the multifilament threads has been used for decades, which is also known in the art as so-called false twist texturing.
- a partially drawn yarn which was previously produced in a melt spinning process, is crimped within a texturing zone of a texturing machine.
- a false twist is generated, which propagates counter to the thread running direction.
- the thread is heated to a temperature in the range of 200 ° C.
- the thereby achieved plastic state of the thread material causes the swirl memorizes in individual filaments of the thread.
- 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.
- Such cooling rails basically have the disadvantage that relatively long cooling distances are required in order to obtain sufficient cooling of the thread.
- methods and devices are known in which the cooling of the thread is carried out with the aid of a cooling liquid in order to realize the shortest possible cooling sections.
- a generic method and a generic device are known for example from EP 0 403 098 A2.
- a heat sink 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 introduced continuously into the cooling groove.
- the heated thread is guided by contact through the cooling groove and cooled by the cooling liquid. Subsequently, the thread is guided 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.
- WO 0138620 A1 discloses a method for cooling a synthetic thread in the texturing zone, in which a cooling liquid is fed to the thread by means of a metering pump, the metering pump being dependent on is regulated by a thread monitored liquid order.
- the liquid application to the yarn is in this case measured by an electrical resistance on a yarn section after cooling.
- Another object of the invention is to develop the generic method and the generic cooling device for cooling a synthetic thread such that in particular a plurality of threads can be cooled in parallel under the same conditions.
- the invention is based on the recognition that the amount of the cooling liquid and the mass of the thread must be in a certain relation to each other, on the one hand to obtain the desired cooling effect and on the other hand to minimize a coolant excess at the end of the cooling. It must be ensured that the coolant is safely supplied to the thread.
- the inventive method therefore provides that the cooling liquid through a metering in the groove bottom of the Cooling groove is supplied in response to a yarn titer of the yarn with a flow rate in the range of 0.05 ml / min to 5 ml / min. Depending on the yarn denier of the yarn so that a desired cooling of the yarn can be realized without a larger excess amount of cooling liquid is obtained after cooling.
- the thread is guided over a path length of the cooling section in the range from 100 mm to 300 mm.
- the method variant has proved successful, in which the cooling liquid is distributed within the cooling groove via a plurality of successive Nuttaschen in the groove base, wherein the yarn is guided with contact via a plurality of web pockets formed webs.
- the method variant is particularly advantageous in which the thread is passed through a plurality of yarn guides, which are upstream of the cooling groove and downstream, the cooling groove between the yarn guides a in Thread running direction has curved groove bottom.
- the angles at which the thread runs into and out of the cooling groove can therefore be set particularly accurately and reproducibly.
- a separate application Adjustment within the machine or the texturing zone is not required due to the thread guide.
- the development of the method according to the invention is provided, in which a vapor caused by the wetted thread is collected and sucked off at the cooling groove. Taking into account that a multiplicity of threads are treated in parallel next to one another within a texturing machine, catching and removing the steam is particularly advantageous.
- a suction connection of the suction device can be formed at the lowest point of the cooling groove in the outlet region in order to remove residues of cooling fluid not yet consumed in addition to the steam.
- the cooling device comprises a metering device for supplying the cooling liquid, wherein the metering device comprises a metering means for generating a delivery rate of cooling liquid in the range of 0.05 ml / min. to 5 ml / min. having.
- Such dosing agents are preferably carried out by dosing pumps, which generate a continuous uniform flow of the cooling liquid and can supply the cooling groove.
- the cooling groove is designed on the heat sink with a length in the range of 100 mm to 300 mm.
- the cooling groove in the groove bottom has a plurality of recessed Nuttaschen, which are each separated by a guide web in the groove bottom.
- the guide webs between the Nuttaschen on the groove bottom of the cooling groove with an equal web width and / or be designed with different sized web widths to make the yarn guide and the wetting of the yarn within the cooling groove.
- the development of the device according to the invention is particularly advantageous in which the cooling groove is preceded by at least one thread guide and a thread guide downstream and in which the cooling groove has a groove base curved in the thread running direction.
- the development of the device according to the invention is provided, in which the cooling body is assigned to the cooling groove, a suction device.
- the suction device is preferably designed such that, in addition to the vapors, the fluid residues of the cooling fluid possibly forming in the outlet region are also removed from the cooling groove. This can avoid environmental stress in a texturing machine.
- the method according to the invention for cooling a synthetic thread in a texturing zone of a texturing machine will be explained in more detail below with reference to some embodiments of the device according to the invention with reference to the attached figures. It represents
- FIG. 1 shows schematically a view of a texturing zone of a texturing machine with integrated cooling device according to the invention for cooling a thread
- FIG. 2 shows schematically the embodiment of the cooling device according to the invention for cooling the yarn from FIG. 1
- FIG. 3 is a schematic cross-sectional view of the embodiment of FIG. 2
- Fig. 4 shows schematically a sectional view of another embodiment of the cooling device according to the invention
- FIG. 5 schematically shows a sectional view of a further embodiment of the cooling device according to the invention.
- FIG. 1 schematically shows a view of a section of a texturing machine, in particular a texturing zone.
- the texturing machine has an infeed point 4, in which a supply bobbin 2 is held with a thread 3.
- the filament 3 was previously made in a melt-spinning process as a partially drawn filament (POY).
- POY partially drawn filament
- the presentation point 4 is assigned a first delivery mechanism 1.1.
- the delivery mechanism 1.1 is formed in this embodiment by a multiple looped godet unit.
- the first delivery mechanism 1.1 forms a thread entry into the so-called texturing zone, which extends up to a second delivery mechanism 1.2.
- the second delivery mechanism 1.2 is likewise formed by a godet unit which is looped around several times.
- the type of delivery mechanisms 1.1 and 1.2 is exemplary in this case. In principle, it is also possible to use so-called clamping delivery mechanisms for thread guidance, in which the thread is guided in a clamping gap between a driven shaft and a pressure roller and / or a pressure belt.
- a cooling device 6 and a false twist unit 7 is arranged in the direction of yarn travel.
- the cooling device 6 is formed by the device according to the invention and is shown individually in FIGS. 2 and 3.
- FIGS. 2 and 3 The embodiment of the cooling device 6 according to the invention shown in FIGS. 2 and 3 is shown schematically in a longitudinal sectional view in FIG. 2 and in a cross-sectional view in FIG. Unless an explicit reference is made to one of the figures, the following description applies to both figures.
- the embodiment of the cooling device 6 has an elongated heat sink 10.
- a cooling groove 1 1 extends on an upper side of the heat sink 10.
- the cooling groove 11 extends up to the front ends of the heat sink 10, wherein an inlet yarn guide 8 is associated with a yarn inlet 24 and an outlet yarn guide 9 is associated with the cooling groove 11 on a yarn outlet 25 are.
- the cooling groove 1 1 has a curved groove base 17, whose curvature is characterized by a radius R.
- the cooling groove extending at the groove base 17 between the yarn inlet 24 and the yarn outlet 25 is marked with a length L in FIG. In the region of the thread inlet 24 opens a metering opening 12 in the groove bottom 17 of the cooling groove 1 1.
- the metering port 12 is connected via a metering 12.1 and a supply line 26 with a metering device 13.
- the metering device 13 has in this embodiment, a dosing 14, which is connected to a container 20. In the container 20, a cooling liquid is held.
- the dosing means 14 is preferably designed as a metering pump and is driven by a motor 15.
- the motor 15 is controlled by a control unit 16 which is connected to a machine control unit, not shown here.
- the groove bottom 17 a plurality of recessed Nuttaschen 18, which are separated from each other in the groove base 17 by a plurality of guide webs 19.
- a suction device 21 is arranged above the cooling groove 1 1.
- the suction device 21 is arranged above the cooling groove 1 1.
- the suction hood 23 is connected to a vacuum source 22, so that the vapors caused by the cooling liquid during cooling of the yarn can be collected and removed.
- the vacuum source 22, which could be designed as a blower, can advantageously be operated with a plurality of adjacent suction hoods 23.
- suction device 21 could also be below the cooling groove be arranged to record in particular residual fluids at the yarn outlet in addition to be able to dissipate.
- a twist is mechanically generated for texturing a thread by the false twist unit 7 on the thread, so that the filaments of the thread 3 to rotate.
- This twist runs counter to the thread running direction and is usually stopped by a so-called spin stop at the inlet of the texturing.
- the twisted yarn 3 is heated in the heater 5 to a temperature of about 200 ° C.
- the thread 3 is fed to the cooling device 6 via the inlet thread guide 8.
- the dosing means 13 For cooling the twisted yarn, the dosing means 13 generates a predetermined flow rate of cooling liquid which is introduced continuously via the nozzle opening 12 into the cooling groove 11. In this case, the flow rate is in the range of 0.05 ml / min.
- the fluid intake for cooling makes it more difficult for the cooling groove to form a specific length of the track in the range from 100 mm to 300 mm, depending on the yarn titer.
- the yarn could be sufficiently cooled within a cooling distance of 225 mm.
- the cooling liquid water was used, which could be added to the water, for example, a small amount of oil, for example, 1% as needed.
- the amount of the cooling liquid was about 4 ml / min. It has been found that the twisted yarn can be efficiently cooled with an amount of cooling liquid in the range of 5 to 15% of the thread weight. This allowed the residual fluid to be minimized at the end of the cooling process.
- the method according to the invention and the device according to the invention are therefore characterized in particular by the fact that, with minimal use of cooling liquid, sufficient cooling of the thread takes place in the texturing process.
- the groove bottom 17 of the cooling groove 1 1 is formed in the heat sink 10 with uniform Nuttaschen 18, so that the guide webs 19 between the Nuttaschen each have an equal web width.
- an embodiment of the cooling device according to the invention is shown in Fig. 4, in which the guide webs 19 are designed with different web widths.
- the embodiment of FIG. 4 is otherwise identical to the embodiment of FIG. 2, wherein the suction device 21 and the metering device 13 are not shown here.
- the guide webs 19 are designed to be much wider in the outlet region than in the other areas of the cooling groove 1 1.
- FIG. 5 an embodiment of the cooling device according to the invention is shown, in which the cooling groove 1 1 in the groove bottom 17 no Nuttaschen 18 has. Again, the illustration of Absaugeinrich- device 21 and the metering device 13 was omitted. The thread 3 is felt in this case with a continuous contact with the groove bottom 17 of the cooling groove 1 1.
- the cooling liquid which is introduced into the cooling groove 11 via the metering opening 12, is distributed uniformly at the groove walls of the cooling groove 11 and is evaporated to the yarn outlet 25 or taken up by the thread and carried along.
- the metering channel opens 12.1 with an inclination in the direction of yarn flow in the cooling groove 1 1.
- the flow of the cooling liquid is already aligned in the direction of yarn travel and favors the distribution in the cooling groove 1.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016011740 | 2016-09-28 | ||
PCT/EP2017/053246 WO2018059743A1 (de) | 2016-09-28 | 2017-02-14 | Verfahren und vorrichtung zum abkühlen eines synthetischen fadens |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3519617A1 true EP3519617A1 (de) | 2019-08-07 |
EP3519617B1 EP3519617B1 (de) | 2020-10-07 |
Family
ID=58018125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17704776.8A Active EP3519617B1 (de) | 2016-09-28 | 2017-02-14 | Verfahren und vorrichtung zum abkühlen eines synthetischen fadens |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3519617B1 (de) |
JP (1) | JP6991225B2 (de) |
CN (1) | CN109790652B (de) |
TW (2) | TWI774665B (de) |
WO (1) | WO2018059743A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109963970B (zh) * | 2016-11-11 | 2022-02-11 | 欧瑞康纺织有限及两合公司 | 用于合成纱线的冷却设备 |
CN112011922B (zh) * | 2019-05-30 | 2024-04-12 | 欧瑞康纺织有限及两合公司 | 一种纺织机械的利用冷却液将合成纤维冷却的冷却设备 |
DE102019134639B4 (de) * | 2019-12-17 | 2021-07-29 | Stc Spinnzwirn Gmbh | Galette |
DE102021002945A1 (de) | 2021-06-09 | 2022-12-15 | Oerlikon Textile Gmbh & Co. Kg | Vorrichtung zum Kühlen eines laufenden Fadens |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5825774B2 (ja) * | 1977-06-13 | 1983-05-30 | 村田機械株式会社 | 糸仮撚処理装置における始動方法 |
JPS5860034A (ja) * | 1981-10-02 | 1983-04-09 | 東レ株式会社 | 仮撚加工方法 |
JPS5865023A (ja) * | 1981-10-12 | 1983-04-18 | 東レ株式会社 | 仮撚機における糸条冷却装置 |
JPS58191230A (ja) * | 1982-04-28 | 1983-11-08 | 東レ株式会社 | 仮撚加撚域における走行糸条の案内方法及びその装置 |
GB8913825D0 (en) | 1989-06-15 | 1989-08-02 | Rieter Scragg Ltd | Yarn texturing method and apparatus |
JPH0816293B2 (ja) * | 1990-10-26 | 1996-02-21 | 東レ株式会社 | 仮撚加工方法 |
JPH0816292B2 (ja) * | 1992-03-23 | 1996-02-21 | 東レ株式会社 | 延伸仮撚方法及び延伸仮撚機 |
JP3173123B2 (ja) * | 1992-05-27 | 2001-06-04 | 東レ株式会社 | 仮撚加工の糸冷却法およびその糸冷却装置 |
JP3139132B2 (ja) * | 1992-05-27 | 2001-02-26 | 東レ株式会社 | 仮撚加工の糸冷却方法およびその糸冷却装置 |
JPH0835136A (ja) * | 1994-07-20 | 1996-02-06 | Teijin Seiki Co Ltd | 仮撚加工機の冷却装置 |
JPH09157973A (ja) * | 1995-12-07 | 1997-06-17 | Murata Mach Ltd | 延伸仮撚り機の糸冷却装置 |
JPH09316742A (ja) * | 1996-03-29 | 1997-12-09 | Toray Ind Inc | 仮撚加工装置 |
JP3490844B2 (ja) * | 1996-05-30 | 2004-01-26 | 東レエンジニアリング株式会社 | 仮撚機の冷却装置 |
DE59807796D1 (de) * | 1997-05-24 | 2003-05-15 | Barmag Barmer Maschf | Texturiermaschine |
JP2002537494A (ja) * | 1999-02-16 | 2002-11-05 | テムコ、テクスティールマシーネンコムポネンテン、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング | 糸を挿入して加撚する方法、および仮撚り織り装置 |
WO2001038620A1 (de) * | 1999-11-25 | 2001-05-31 | Maschinenfabrik Rieter Ag | Verfahren zur abkühlung eines verdrillten filamentgarnes |
GB0000786D0 (en) * | 2000-01-14 | 2000-03-08 | Univ Manchester | Apparatus for processing textile materials |
-
2017
- 2017-02-14 CN CN201780058217.XA patent/CN109790652B/zh active Active
- 2017-02-14 WO PCT/EP2017/053246 patent/WO2018059743A1/de unknown
- 2017-02-14 EP EP17704776.8A patent/EP3519617B1/de active Active
- 2017-02-14 JP JP2019538312A patent/JP6991225B2/ja active Active
- 2017-03-20 TW TW106109156A patent/TWI774665B/zh active
- 2017-03-20 TW TW111135473A patent/TWI803429B/zh active
Also Published As
Publication number | Publication date |
---|---|
CN109790652A (zh) | 2019-05-21 |
CN109790652B (zh) | 2021-11-30 |
JP6991225B2 (ja) | 2022-01-12 |
TW201814095A (zh) | 2018-04-16 |
JP2019533095A (ja) | 2019-11-14 |
TW202321536A (zh) | 2023-06-01 |
TWI774665B (zh) | 2022-08-21 |
WO2018059743A1 (de) | 2018-04-05 |
EP3519617B1 (de) | 2020-10-07 |
TWI803429B (zh) | 2023-05-21 |
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