EP1583855A1 - Verfahren und vorrichtung zum spinnen und kr useln eines syn thetischen fadens - Google Patents
Verfahren und vorrichtung zum spinnen und kr useln eines syn thetischen fadensInfo
- Publication number
- EP1583855A1 EP1583855A1 EP03815046A EP03815046A EP1583855A1 EP 1583855 A1 EP1583855 A1 EP 1583855A1 EP 03815046 A EP03815046 A EP 03815046A EP 03815046 A EP03815046 A EP 03815046A EP 1583855 A1 EP1583855 A1 EP 1583855A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- thread plug
- thread
- groove
- plug
- 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
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
- D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet
-
- 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
- D02J13/005—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 rotating roll
Definitions
- the invention relates to a method for spinning and crimping a synthetic thread according to the preamble of claim 1 and to a device for spinning and crimping a synthetic thread according to the preamble of claim 9.
- the crimping device When producing a crimped thread, a large number of strand-like filaments are first extruded from a thermoplastic melt by means of a spinning device. After cooling, the bundle of filaments is combined and then swaged up to a thread stopper by means of an eyelet device. Here, the individual filaments of the filament bundle are deformed into loops and arches in the thread plug using a preferably hot fluid.
- the crimping device contains a stuffer box in which the filament bundle is compressed by the conveying medium to the thread plug. When the filaments hit the thread plug within the stuffer box, the desired loops and arches of the individual filaments are created.
- the thread is preferably passed through a hot conveying medium and heated at the same time, so that a plastic change in shape can take place in the individual filaments.
- the thread plug is passed through a cooling section to fix the crimp.
- the cooling section is preferably formed by a cooling groove on the circumference of a rotating cooling drum.
- the length of the cooling section is determined by the diameter of the cooling drum and by a partial wrap on the circumference of the cooling drum.
- the cooling drum is driven in rotation, so that the peripheral speed of the cooling groove is equal to the cooling speed of the thread plug with which the thread plug passes through the cooling section.
- Such a method and Such device for spinning and crimping a synthetic thread are known for example from DE 196 13 177 AI.
- the object of the invention is achieved by a method with the features according to claim 1 and with a device with the features according to claim 9.
- the invention is based on the knowledge that the decisive parameter for the cooling of the thread plug is the dwell time of the thread plug within the cooling section or in the cooling groove.
- the temperature difference between the thread plug and the cooling medium and the volume flow of the cooling medium are known as further parameters for cooling the thread plug.
- the influence of these parameters is small in relation to the duration of the cooling.
- the length of the cooling section and the cooling speed of the thread stopper are thus decisive parameters for the duration of the cooling of the thread stopper.
- the method according to the invention is characterized in that the length of the cooling section and the cooling speed of the thread plug are in a relationship to one another such that the thread plug is cooled in the cooling groove over a period of at least 1 second. This ensures an essentially complete cooling of the thread plug, so that a very high degree of crimping in the thread can be achieved.
- the length of the cooling section and the cooling speed of the thread plug preferably chosen such that the thread plug is cooled over a period of at least 2 seconds on the circumference of the cooling drum.
- the length of the cooling section can be varied at a given cooling speed or the cooling speed of the thread plug can be changed at a given length of the cooling section.
- the cooling section is essentially determined by the structural nature of the cooling groove provided for receiving the thread plug and is often limited by an allowable installation space.
- the method variant is preferably used in which the thread plug is guided at a guide speed before cooling and at the cooling speed during cooling, the cooling speed is lower than the guide speed.
- the thread plug is placed in a meandering shape, preferably in several layers one above the other, in the cooling groove at the beginning of the cooling section, a uniform filling of the cooling groove and thus a uniform cooling of the thread plug can be achieved.
- the thread plug is preferably cooled by a
- Coolant flow that penetrates the thread plug is generated by a vacuum source.
- An additional one can also be used to increase cooling Coolant flow can be generated by a positive pressure source, which is blown, for example, as cooling air on the thread plug.
- the method according to the invention is characterized by a significantly increased crimping of the thread.
- a carpet made with such a yarn showed high opacity without any streaking and clouding.
- the method according to the invention is suitable for all types of polymers such as, for example, PA and PP.
- the device according to the invention has proven itself in particular.
- the width of the cooling groove for receiving and guiding the thread plug is dimensioned such that the thread plug can be meandered in several layers one above the other. Intensive cooling of the thread plug can be ensured even at high process speeds, since the guide speed can be set much higher than the cooling speed of the thread plug.
- a distance is set between the outlet of the texturing device and the cooling groove, the width of the cooling groove being at least twice as large as the diameter of the thread plug.
- the cooling groove can basically be formed on a band-shaped carrier or, according to an advantageous development of the invention, on the circumference of a cooling drum.
- the cooling speed for guiding the thread plug can be controlled in a simple manner by driving the cooling drum.
- the cooling drum is preferably associated with a negative pressure source, by means of which a cooling medium flow penetrating the thread plug and the sieve-shaped groove base of the cooling groove can be generated.
- the cooling drum can be assigned an additional blowing device with an overpressure source, by means of which an additional cooling medium flow directed towards the cooling groove and the thread plug can be generated.
- Fig. 1 shows schematically a first embodiment of the device according to the invention
- FIG. 2 schematically shows a section of the exemplary embodiment according to FIG. 1
- Fig. 3 schematically shows a diagram to show the relationship between the time period of cooling the thread plug and the crimping of the thread
- Fig. 4 schematically shows another embodiment for cooling the thread plug
- the device has a spinning device 1, which is connected via a melt feed 3 to a melt generator, for example a pump or an extruder (not shown here).
- the spinning device 1 has a spinning head 2 which contains at least one spinneret 4 on the underside.
- the spinneret 4 has a multiplicity of nozzle bores through which the polymer melt supplied to the spinning head 2 is extruded under pressure to form a multiplicity of individual filaments 6.
- a cooling shaft 5 is provided, through which the filaments 6 are guided, so that the filaments emerging with an approximate melt temperature are cooled.
- the cooling shaft 5 could, for example, be connected to a crossflow blower through which a cooling air is blown essentially transversely onto the filaments 6.
- a thread guide and a preparation device 8 are arranged in the outlet region of the cooling shaft 5.
- a preparation agent is applied to the filaments 6 by the preparation device 8, so that the filaments 6 join to form a filament bundle 10.
- the filament bundle 10 is withdrawn from the spinneret 4 by an EM-godet unit 9 arranged below the cooling shaft 5 and guided to a subsequent godet unit 12.
- the filament bundle 10 reaches a crimping device 7 from the stretching godet unit 12. In the crimping device 7, the previously stretched filament bundle 10 is compressed into a thread plug 13.
- the curling device 7 is a Bru device 11 with a moving cooling groove 26 downstream.
- the cooling groove 26 serves to receive and cool the thread plug 13.
- the structure and function of the cooling device 11 will be explained in more detail below.
- FIG. 1 The structure and arrangement of the individual units of the exemplary embodiment shown in FIG. 1 is exemplary.
- the treatment facilities and guide elements can thus be supplemented, exchanged or replaced.
- Thread closure between the filaments or the crimped filaments manufacture for example, swirling device 18 can be arranged before and / or after the crimping.
- the embodiment of the device according to the invention shown in FIG. 1 is particularly suitable for the production of carpet yarns. For this it is necessary that the crimped thread has a crimp sufficient for the final processing.
- the crimping device 7 and the cooling device 11 arranged downstream of the crimping device 7 thus represent a treatment step which is important for the process and which is explained in more detail below.
- FIG. 2 shows a section from the exemplary embodiment according to FIG. 1.
- 2.1 schematically shows a cross-sectional view of the crimping device 7 and the downstream cooling device 11.
- FIG. 2.2 schematically shows a side view of the units.
- FIG. 2 shows the crimping device 7 and the cooling device 11 of the exemplary embodiment of the inventive device according to FIG. 1, which is connected downstream in the crimping device 7.
- the crimping device 7 has a nozzle-shaped delivery channel 20.
- the delivery channel 20 here essentially consists of two sections which are separated from one another by a narrowest cross section. In a first section shortly before the narrowest cross section, nozzle bores of an injector 19 open into the delivery channel 20. The injector 19 is connected to a fluid source, not shown here. In the second section below the narrowest cross section, the delivery channel 20 widens and opens into an immediately adjacent stuffer box 22.
- the stuffer box wall is air-permeable and is arranged within a relief chamber 21.
- the compression chamber 22 is located below the relief chamber 21 continued through a discharge tube 23 with an essentially unchanged cross section.
- a plug outlet 24 is formed at the end of the discharge tube 23.
- the cooling device 11 is designed as a rotatable cooling drum 25.
- the cooling drum 25 is driven via a drive shaft 30 by a drive 31 at a peripheral speed.
- the cooling drum 25 has a circumferential cooling groove 26 for receiving the thread plug 13 produced by the crimping device 7.
- the groove base 27 of the cooling groove 26 is air-permeable, so that a kufilmediumstrom preferably generated from the outside inwards penetrates and cools the thread plug 13 guided in the cooling groove 26.
- a pressure chamber 34 is formed inside the cooling drum 25, which is coupled to a vacuum source 29 via a suction line 28. The ambient air outside the cooling drum 25 is thus used as the cooling medium for cooling.
- the cooling groove 26 formed on the circumference of the drum 25 has a width B.
- the width B of the cooling groove 26 is dimensioned in relation to the thread plug 13 such that the width B is preferably greater than twice the amount of the thread plug diameter D, i.e. B> 2D.
- a free distance A is formed between the plug outlet 24 and the cooling groove 26 in order to allow the thread plug 13 to be freely deposited in the cooling groove 26.
- the distance A remains unchanged during the crimp.
- a hot delivery fluid is fed into the delivery channel 20 via the injector 19. This creates a suction effect at the upper end of the conveying channel 20, which sucks the filament bundle 10 into the crimping device 7.
- the filament bundle 10 is guided via the conveying fluid through the conveying channel 20 into the stuffer box 22.
- the filament bundle 10 builds up in the stuffer box 22 to form a thread plug 13.
- the filament bundle 10 opens in the process and the individual filaments 6 lie on one another in loops and arcs.
- the formation of the thread plug 13 is essentially determined by the nature of the conveying fluid and by the pressure of the conveying fluid certainly. Hot air is preferably used as the conveying fluid.
- the upper region of the stuffer box 22 is designed to be air-permeable in the form of air slots or lamellae, so that the delivery fluid can escape into a discharge chamber 21 and from there to the outside.
- the thread plug 13 is guided with a defined set guide speed V F through the plug chamber 22 to the plug outlet 24.
- the thread plug 10 now arrives at the guide speed vp in the cooling groove 26.
- the cooling groove 26 moves at a cooling speed V K , which is determined by the peripheral speed of the cooling drum 25.
- the cooling speed V R is set to be significantly lower than the guide speed V F - depending on the ratio between the guide speed and the cooling speed, the thread plug 13 is stored in multiple layers and, due to the free guidance, meandering in the cooling groove 26.
- the width B of the cooling groove 26 and the speed ratio between the guide speed and the cooling speed are coordinated with one another in such a way that a uniform filling of the cooling groove 26 with the thread plug 13 is achieved.
- the thread plug 13 passes through the cooling section on the circumference of the cooling drum 25.
- the cooling section is determined by the degree of wrapping of the thread plug 13 on the cooling drum 25. In the embodiment shown in FIG. 2, the cooling drum 25 is wrapped around the thread plug 13 with a wrap angle of 180 °.
- the thread plug 13 is cooled by the cooling medium flow generated from the outside inwards. After the thread stopper 13 has cooled at the end of the cooling section, the thread stopper 13 is released into the crimped thread 15.
- the length of the cooling section is determined by the diameter of the cooling drum 25 and the degree of wrap around the thread plug 13 on the circumference of the cooling drum 25.
- the cooling drum 25 usually have a diameter of 0.3 to 0.6 m. In one exemplary embodiment, a cooling drum with a diameter of 400 mm was used. With a wrap angle of 180 °, the length of the cooling section is approximately 0.6 m.
- the Guide speed vp was 90 m / min.
- the cooling speed R was 20 m / min. set. This results in a time period for cooling the thread plug of approximately 1.8 seconds. This ensured that the thread plug received intensive cooling after passing through the cooling section and thus the thread 15 showed a stable and high crimp.
- Fig. 3 the relationship between the time for cooling the thread plug and the crimping of the crimped thread produced is shown in a diagram.
- the curve profile shown makes it clear that in the area below 1 sec. Cooling time there is a strong dependency between the time period of cooling and the crimping. As the cooling time increases, the curve flattens to asymptotically approach a crimp limit.
- This relationship between the duration of cooling and the crimping of the crimped thread is basically valid for all types of polymer.
- the method according to the invention ensures, with a minimum cooling time of 1 sec., Preferably 2 sec., That a high degree of crimping is achieved in the thread produced.
- the meandering multi-layered depositing of the thread plug is set in such a way that no significant gaps arise within the cooling groove 26. This results in a uniform flow resistance and thus a uniform cooling of the thread plug.
- the storage of the thread plug can be influenced by additional guide elements.
- the tangled storage of the thread plug in the cooling groove can also be done in a simple manner Reach way by controlling the distance A (Fig. 2.1) between the thread plug outlet and the cooling groove and by choosing the width B of the cooling groove.
- FIG. 4 schematically shows a modification of the cooling device of the exemplary embodiment from FIG. 1.
- a blowing device 32 is arranged at a distance from the cooling drum 25 in the region of the cooling groove 26 and is connected to a positive pressure source 33.
- the blowing device 32 has an elongated shape covering at least a partial section of the cooling section.
- a cooling medium flow through the positive pressure source 33 is generated via numerous blowing openings and directed onto the thread plug 13 in the cooling groove 26.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10301212 | 2003-01-15 | ||
| DE10301212 | 2003-01-15 | ||
| PCT/EP2003/002345 WO2004063440A1 (de) | 2003-01-15 | 2003-03-07 | Verfahren und vorrichtung zum spinnen und kräuseln eines synthetischen fadens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1583855A1 true EP1583855A1 (de) | 2005-10-12 |
| EP1583855B1 EP1583855B1 (de) | 2011-06-15 |
Family
ID=32694890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20030815046 Expired - Lifetime EP1583855B1 (de) | 2003-01-15 | 2003-03-07 | Verfahren und vorrichtung zum spinnen und kräuseln eines synhetischen fadens |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US8342834B2 (de) |
| EP (1) | EP1583855B1 (de) |
| JP (1) | JP4386845B2 (de) |
| CN (1) | CN1732297B (de) |
| AT (1) | ATE513074T1 (de) |
| WO (1) | WO2004063440A1 (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004022469A1 (de) * | 2004-05-06 | 2005-12-01 | Saurer Gmbh & Co. Kg | Verfahren und Vorrichtung zum Stauchkräuseln eines multifilen Fadens |
| WO2006048035A1 (de) * | 2004-11-05 | 2006-05-11 | Saurer Gmbh & Co. Kg | Verfahren und vorrichtung zum spinnen und texturieren eines synthetischen fadens |
| ITMI20081112A1 (it) * | 2007-08-02 | 2009-02-03 | Oerlikon Textile Gmbh & Co Kg | Dispositivo per arricciare filoni di fibre sintetiche |
| CN101838871B (zh) * | 2009-12-28 | 2012-06-13 | 宁波荣溢化纤科技有限公司 | 卷曲机冷却装置、卷曲机及丝条卷曲方法 |
| CN104040053B (zh) | 2012-01-07 | 2017-02-01 | 欧瑞康纺织有限及两合公司 | 用于多纤维长丝卷曲变形的方法和设备 |
| DE102012004747A1 (de) * | 2012-03-08 | 2013-09-12 | Oerlikon Textile Gmbh & Co. Kg | Kräuselvorrichtung |
| DE112013002577A5 (de) * | 2012-07-02 | 2015-04-02 | Casar Drahtseilwerk Saar Gmbh | Vorrichtung und Verfahren zur Herstellung einer Litze oder eines Seils |
| US9896786B2 (en) | 2012-08-23 | 2018-02-20 | Columbia Insurance Company | Systems and methods for improving and controlling yarn texture |
| US9951445B2 (en) | 2012-08-23 | 2018-04-24 | Columbia Insurance Company | Systems and methods for improving and controlling yarn texture |
| WO2014145896A1 (en) * | 2013-03-15 | 2014-09-18 | Shaw Industries Group. Inc | Apparatus for improving and controlling yarn texture |
| BE1021905B1 (nl) * | 2014-07-18 | 2016-01-26 | Iropa Ag | Textureerinrichting |
| BE1024740B1 (nl) * | 2016-11-22 | 2018-06-18 | Wiele Michel Van De Nv | Inrichting en werkwijze voor het vervaardigen van gekroesd textielgaren en koeltrommel voor een dergelijke inrichting |
| CN106592031B (zh) * | 2017-01-24 | 2019-08-30 | 青岛青禾人造草坪股份有限公司 | 人造草坪纤维丝生产装置及方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4224454C2 (de) | 1991-07-30 | 1996-06-05 | Barmag Barmer Maschf | Verfahren zur Regelung der Temperatur eines Heizmediums zur Erhitzung eines synthetischen Fadens und Texturiereinrichtung für einen synthetischen Faden |
| US5727293A (en) | 1994-11-29 | 1998-03-17 | Maschinenfabrik Rieter Ag | Method and apparatus for continuous crimping of thermoplastic threads |
| DE19613177A1 (de) * | 1995-04-10 | 1996-10-17 | Barmag Barmer Maschf | Vorrichtung und Verfahren zum Strecken, Auflockern und Kühlen von Fadenstopfen |
| US5974777A (en) * | 1998-04-21 | 1999-11-02 | Davis; David M | Yarn texturizer cooling drum |
| EP1026295A3 (de) * | 1999-02-06 | 2003-11-26 | Barmag AG | Verfahren und Vorrichtung zum Stauchkräuseln eines Fadens |
| DE50114368D1 (de) * | 2000-03-01 | 2008-11-13 | Oerlikon Textile Gmbh & Co Kg | Verfahren und vorrichtung zum stauchkräuseln |
| DE10110601A1 (de) * | 2000-04-11 | 2001-10-25 | Barmag Barmer Maschf | Verfahren und Vorrichtung zum Spinnen und Kräuseln eines multifilen Fadens |
| US7150083B2 (en) * | 2001-05-10 | 2006-12-19 | Saurer Gmbh & Co. Kg | Compressive crimping device for a synthetic multi-threaded yarn |
-
2003
- 2003-03-07 AT AT03815046T patent/ATE513074T1/de active
- 2003-03-07 CN CN038258226A patent/CN1732297B/zh not_active Expired - Fee Related
- 2003-03-07 EP EP20030815046 patent/EP1583855B1/de not_active Expired - Lifetime
- 2003-03-07 JP JP2004565924A patent/JP4386845B2/ja not_active Expired - Fee Related
- 2003-03-07 WO PCT/EP2003/002345 patent/WO2004063440A1/de not_active Ceased
-
2005
- 2005-07-14 US US11/181,161 patent/US8342834B2/en not_active Expired - Fee Related
-
2012
- 2012-12-11 US US13/711,276 patent/US20130174531A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004063440A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050242461A1 (en) | 2005-11-03 |
| CN1732297B (zh) | 2012-04-25 |
| ATE513074T1 (de) | 2011-07-15 |
| WO2004063440A1 (de) | 2004-07-29 |
| CN1732297A (zh) | 2006-02-08 |
| US8342834B2 (en) | 2013-01-01 |
| US20130174531A1 (en) | 2013-07-11 |
| JP2006513329A (ja) | 2006-04-20 |
| JP4386845B2 (ja) | 2009-12-16 |
| EP1583855B1 (de) | 2011-06-15 |
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