EP0937791B1 - Verfahren und Vorrichtung zum Spinnen eines multifilen Fadens - Google Patents

Verfahren und Vorrichtung zum Spinnen eines multifilen Fadens Download PDF

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Publication number
EP0937791B1
EP0937791B1 EP99102701A EP99102701A EP0937791B1 EP 0937791 B1 EP0937791 B1 EP 0937791B1 EP 99102701 A EP99102701 A EP 99102701A EP 99102701 A EP99102701 A EP 99102701A EP 0937791 B1 EP0937791 B1 EP 0937791B1
Authority
EP
European Patent Office
Prior art keywords
cooling
shaft
stream
air
air stream
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.)
Expired - Lifetime
Application number
EP99102701A
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German (de)
English (en)
French (fr)
Other versions
EP0937791A2 (de
EP0937791A3 (de
Inventor
Klaus Schäfer
Ernst Callhoff
Georg Stausberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Saurer GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP0937791A2 publication Critical patent/EP0937791A2/de
Publication of EP0937791A3 publication Critical patent/EP0937791A3/de
Application granted granted Critical
Publication of EP0937791B1 publication Critical patent/EP0937791B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys

Definitions

  • the invention relates to a method for spinning a multifilament yarn according to The preamble of claim 1 and a spinning device according to the The preamble of claim 11.
  • the known method and the known device is a on a Spinneret emerging filament bundle cooled by a cross-flow blowing.
  • the cooling shaft is a second section extended.
  • an air / water mixture initiated as mist-like cooling flow into the cooling shaft, which by means of a suction in the thread running direction for cooling the thread flows to the end of the cooling section.
  • This is due to the admixture of Liquid reaches a higher cooling effect on the filaments.
  • the method has the disadvantage that a significant proportion of air from the Cross-flow blowing is introduced directly into the lower cooling shaft. Thereby An air flow surrounding the filament forms, which prevents Liquid particles reach the surface of the filament.
  • the invention is characterized in that the countercurrently in the second Cooling zone initiated moist cooling flow to a high degree of wetting the Filaments leads, so that a relatively large amount of heat dissipated in a short time can be. It has surprisingly been found that the cooling stream flowing against the thread running direction does not become a substantial one Increasing the frictional resistance of the thread leads. On the contrary, the Counter-current can be adjusted so that no protective sheath in the form of a Air flow around the filament could form. The preferably from an air / liquid mixture existing cooling flow prevented the formation of a such protective jacket and led to an intensive cooling of the filaments.
  • Another advantage of the invention is that the uniformity of the Filaments is given by the fact that in the first cooling zone directly below the Spinneret is precooled by an air flow. Through this Precooling solidifies a boundary layer of the filaments, providing sufficient stability in order in the second cooling zone with the air / liquid mixture in To contact.
  • the method according to the invention and the device according to the invention are particularly suitable for producing high-strength filaments made of polypropylene.
  • Such threads must be cooled with the least possible orientation be to the highest possible draft in the subsequent To obtain draw zone.
  • the stretching takes place here advantageous over several galette pairs.
  • By the invention it is achieved that such threads be produced with a winding speed of up to 5,000 m / min can.
  • the process variant according to claim 2 is particularly suitable to a uniform cooling of the filaments within the filament bundle receive. This allows pre-cooling of threads with a titer of up to 2,000 dtex Then, with an intensive cooling through the air / Cool liquid mixture without significant preorientation. moreover the suction of the air flow of the first cooling zone has the advantage that the Cooling flow of the second cooling zone is substantially unaffected and thus to an intensive and uniform cooling of the filaments leads. In addition, will prevents the flow of air from the first cooling zone into the second cooling zone arrives.
  • the cooling stream used is preferably an air / liquid mixture.
  • there the mixing ratio can be chosen such that a saturated or An unsaturated moist air is created.
  • a saturated moist air has the advantage that a high liquid content to a intensive cooling of the filaments leads.
  • Such a mixture is used in particular for large thread tiers.
  • unsaturated moist air it is preferable to use unsaturated moist air.
  • the process variant according to claim 8 is particularly good for the production of suitable for technical yarns.
  • the cooling flow through a suction generated, wherein an airflow generated by the suction, the liquid is added at the end of the cooling zone by means of a spray nozzle.
  • the moisture content of the air can be very high be precisely adjusted and regulated, so that when using multiple spinning stations an air stream with the same moisture content is available at each spinning station.
  • the liquid used in the process according to the invention is preferably water.
  • the spinning device according to the invention is characterized in particular by the fact that the cooling device has two cooling zones whose cooling effect is independently adjustable and controllable.
  • the formation of the spinning device according to claim 12 is especially beneficial.
  • the liquid in the finest drops added That's how the liquid gets promoted by a metering pump at high pressure through a spray nozzle. In this way, a fog-like cooling flow, the counter to thread running direction flows.
  • the formation of the atomizer nozzle according to claim 13 especially cheap.
  • the formation of the spinning device according to the invention according to claim 16 offers the advantage that the filaments within the filament bundle evenly be cooled.
  • the extracted cooling stream is treated so that the liquid from the Air flow is separated and discharged to a container.
  • the Suction device connected to a water separator. Out of the container can then supply the metering pump, so that a fluid circuit arises.
  • Another particularly advantageous embodiment of the spinning device according to Claim 19 is particularly suitable to the upper cooling shaft a self-priming cooling of the filaments.
  • the for cooling the Filaments generated air flow is in this case essentially by the below set the cooling duct arranged suction.
  • a spinning device for producing a multifilament yarn is shown schematically.
  • a thermoplastic material is fed via a melt feed 1 to a spinning beam 2.
  • the thermoplastic material could in this case be supplied directly from an upstream extruder or from a pump.
  • a spinneret 3 is arranged on the underside of the spinneret 2.
  • the spinning beam 2 usually carries a plurality of preferably arranged in series spinnerets. Each of the spinnerets constitutes a spinning station of the spinning device. Since a thread is produced in each spinning station, only one spinning station is shown in FIG.
  • the cooling shaft 6 is a through air-permeable tube 9 is formed.
  • the tube has a plurality of transverse bores. It could, however, be made of an air-permeable be made porous sheath.
  • the tube 9 is in a blower 11 a Blowing device 10 is arranged.
  • the blower 11 is an air flow generated by a blower 12.
  • the blower 12 with an inlet 16th connected. About the inlet 16 can conditioned air of an air conditioner or but also the ambient air is sucked in.
  • a suction device 8 is arranged below the upper cooling shaft 6 through a Tube 13 is formed, which is traversed by the filament bundle 4. Between the Pipe 9 and the pipe 13, a suction device 8 is arranged.
  • the Suction 8 is here by an annular, the filament bundle enclosing suction chamber 15 and connected to the suction chamber 15 Blower 14 is formed.
  • the inner wall of the suction chamber 15 is also permeable to air, so that an air flow discharged from the cooling shaft 6 and 7 can be.
  • the suction device 8 an outlet 17.
  • the tube 13 has a closed jacket. In the area of the free end of the tube 13, a spray nozzle 18 is attached to the circumference of the tube 13.
  • the Atomizing nozzle 18 has a nozzle opening 21 in the interior of the tube 13 is directed.
  • the atomizer nozzle 18 is at the pressure line of a metering pump 19 connected, which is connected via a suction line with a container 20.
  • the filament bundle 4 outside of Cooling shaft 7 through a preparation device 22 to a thread. 5 summarized and provided with a preparation liquid.
  • the thread 5 occurs then in a drawing zone.
  • Thread wraps around the withdrawal godet 23 several times. Serves one entangled to the godet 23 arranged overflow roller 24.
  • the overflow roller 24 is freely rotatable.
  • the godet 23 is driven by a drive (not shown here) and with operated at a presettable speed. This take-off speed is many times higher than the natural exit velocity of the Filaments from the spinneret 3.
  • the withdrawal godet is followed by a drafting field several godets.
  • two Galettenduos with the Galettes 25.1 and 26.2 as well as a pair of galettes with 25.2 and 26.2 are shown.
  • the thread 5 runs in a take-up device 27.
  • the take-up device 27 has a head thread guide 28, which the Forming the beginning of a so-called traversing triangle.
  • the thread 5 then runs in a traversing device 32, wherein the thread by means of guide elements along a traverse stroke is led back and forth.
  • the traversing device 32 is as a Kehrgewindewalze with a guided traverse guide or executable as wellgelchangier issued.
  • From the traversing device 32 is running the thread via a contact roller 41 to the coil to be wound 29. Die Contact roller 41 rests on the surface of the coil 29. It is used for measurement the surface speed of the coil 29.
  • the coil 29 is on a Winding spindle 30 clamped.
  • the winding spindle 30 is rotatable on a frame 31 stored.
  • the winding spindle 30 is driven by a spindle motor (not shown here) driven so that the surface velocity of the coil 29 is constant remains.
  • the controlled speed is the speed of the freely rotatable contact roller 41 sampled and corrected by the spindle motor.
  • the filaments 4 after the Leakage from the spinneret 3 cooled by an air flow, by means of the Blowing 10 is directed radially circumferentially on the filament bundle 4.
  • the air flow is through the current Filaments substantially entrained and below the cooling shaft 6 through sucked the suction device 8 and discharged.
  • In the lower cooling shaft 7 flows Cooling flow counter to the thread running direction to the suction device 8. This Cooling flow is generated by the suction device 8, the ambient air in the cooling duct at the lower end of the tube 13 sucks.
  • the one in the bottom Area of the tube 13 incoming air flow is by means of the spray nozzle 18th mixed with a liquid in the form of very fine droplets.
  • This air / Liquid mixture is now due to the suction effect of the suction 8 against the thread running direction.
  • the addition of the liquid is a relatively large Heat transfer generated so that the filaments without a substantial Orientation occurs, cooled.
  • the cooling flow can be adjusted in this case are that, surprisingly, no significant frictional forces on the thread attack or the frictional forces have no due to the rapid cooling negative effect.
  • the thread 5 thus occurs essentially unoriented in the subsequent stretching field.
  • Through the godets 25 and 26 is a complete Drawing of the thread, which is then wound into a bobbin becomes.
  • the inventive method allows Aufwickel Anlagenen of up to 5,000 m / min. By this high Winding speeds, for example, in the production of Polypropylene yarns production performance can be significantly increased.
  • the first cooling zone should, however, if possible be formed in the range of a length of 0.1 to 1 m be.
  • the cooling effect is substantially of the Proportion of the liquid in the cooling flow dependent. The proportion of the liquid is but primarily dependent on the fineness of the liquid mist.
  • the inventive method is not limited to the production of filaments made of polypropylene. It can also threads according to this method made of polyamide or polyester. Likewise, the in Fig. 1 shown stretching zone only one example of a treatment of a thread. In Dependent on the thread type, the treatment can be done after removing the thread from the spinneret by stretching, heating, relaxing or swirling be supplemented or replaced. It is also possible to use the spinning device to operate galettenlos. Here, the thread by means of a Winding device withdrawn directly from the spinneret.
  • Fig. 2 is another embodiment of a device for cooling the filaments, as used for example in the spinning device of FIG. 1 could be used shown.
  • the tube 9 is on one side with a blow chamber 33, a blowing device 32 is connected.
  • the Blowing device 32 is designed as a so-called Querstromanblasung. in this connection
  • a fan 34 By a fan 34, a cooling air flow through an inlet 35 in the Blashunt 33 out.
  • the air flow passes through the air-permeable pipe wall on one side within the cooling shaft 6 a.
  • the Filaments are thereby precooled.
  • the Suction device 8 between the tube 9 and the tube 13 is arranged.
  • the Suction device of FIG. 2 Compared with the suction device shown in Fig. 1, the Suction device of FIG. 2 a connection to a water separator 36th Here, the extracted cooling flow from the lower cooling shaft 7 of Blower 14 led to the water. In the water separator takes place Separation between the gaseous and the liquid components of the Cooling stream. The gaseous components of the cooling stream are from the Outlet 17 discharged. The liquid components become a container 20 guided. The container 20 simultaneously serves to supply the metering pump 19, which feeds the atomizing nozzle 18 in the lower region of the cooling shaft 7.
  • the spray nozzle 18 is formed such that several Nozzle openings are arranged radially circumferentially on the circumference of the tube 13. This ensures that the atomized liquid is very uniform in the Airflow distributed.
  • the air flow is here by a at the output of the lower Cooling shaft 7 arranged blowing device 37 generates.
  • the Blower 37 an air inlet 40, a blower 39 and a blow chamber 38 on the blow chamber 38 is connected to the cooling shaft 7 permeable to air.
  • the blow chamber 38 is annular in this case, so that an air flow radially flows into the cooling shaft 7.
  • FIG. 2 Another embodiment of a cooling device is by modification given the spinning device shown in Fig. 2. This will be the end the cooling tube 13 arranged blowing device 37 with the air inlet 40 at connected to a chamber. In this chamber will be one Air / liquid mixture with a certain moisture content of the air produced. The moist air is sucked out of the chamber by the blower 39 and blown into the blow chamber 38. From the blow chamber 38 passes the humid Air through the negative pressure generated in the pipe 13 as a counterflow on the Filaments. Direct introduction of liquid through the atomizer nozzles 18 is not required in this case. The atomizer nozzles could, for example be arranged in the chamber to a saturated or an unsaturated moist To generate air.
  • FIG. 3 another embodiment of a cooling device is shown as they are used, for example, in a spinning device according to FIG. 1 could.
  • the suction device between the upper cooling shaft 6 and the lower cooling shaft 7 through two Building units 8.1 and 8.2 formed.
  • the unit 8.1 is connected to the tube 9 of connected to the first cooling zone.
  • the tube 9 is on the entire circumference permeable to air.
  • This weak air stream favors the cooling of the Filaments such that a uniform solidified shell zone at the Forms filaments.
  • the exiting Filaments 4 still molten, so that a strong air flow on an influence the uniformity of the filament strands has.
  • This arrangement is thus particularly suitable for such types of polymers, in which a slow Pre-cooling of the filaments in the first cooling zone is desired.
  • the second cooling zone is formed with the tube 13.
  • the pipe 13 is in this case arranged with its upper end to the suction 8.2.
  • the suction device 8.2 coupled from Fig. 3 with the water separator 36.
  • Cooling shaft 7 In the embodiment shown in Fig. 3, however, the cooling flow in Cooling shaft 7 exclusively generated by the suction 8.2.
  • a plate 43 At the end of the tube 13, a plate 43 is arranged.
  • the plate 43 has an opening 42, through which the filament bundle exits. This embodiment has the Advantage that generates an aligned in the center of the cooling shaft 7 air flow becomes.
  • the atomizer nozzle shown in Fig. 3 is annular, so that the Orifice radially circulating the liquid evenly in through the Injecting opening 42 incoming airflow.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP99102701A 1998-02-21 1999-02-17 Verfahren und Vorrichtung zum Spinnen eines multifilen Fadens Expired - Lifetime EP0937791B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19807507 1998-02-21
DE19807507 1998-02-21

Publications (3)

Publication Number Publication Date
EP0937791A2 EP0937791A2 (de) 1999-08-25
EP0937791A3 EP0937791A3 (de) 1999-12-22
EP0937791B1 true EP0937791B1 (de) 2005-02-02

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Application Number Title Priority Date Filing Date
EP99102701A Expired - Lifetime EP0937791B1 (de) 1998-02-21 1999-02-17 Verfahren und Vorrichtung zum Spinnen eines multifilen Fadens

Country Status (7)

Country Link
US (1) US6103158A (ko)
EP (1) EP0937791B1 (ko)
JP (1) JPH11279826A (ko)
KR (1) KR100568882B1 (ko)
CN (1) CN1138879C (ko)
DE (1) DE59911538D1 (ko)
TW (1) TW476818B (ko)

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EP1228268B1 (de) * 1999-09-07 2004-02-18 Barmag Ag Verfahren zum schmelzspinnen
EP1221499A1 (de) * 2001-01-05 2002-07-10 Acordis Industrial Fibers bv Verfahren zum Spinnstrecken von schmelzgesponnenen Garnen
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PT1521869E (pt) * 2002-07-05 2012-01-03 Api Inst Método de fiação
US7037097B2 (en) * 2003-05-20 2006-05-02 Hills, Inc. Methods and apparatus for controlling airflow in a fiber extrusion system
ITMI20041137A1 (it) * 2004-06-04 2004-09-04 Fare Spa Apparecchiatura per il trattamento di filati sintetici
CN101535537B (zh) * 2006-11-10 2011-01-26 欧瑞康纺织有限及两合公司 用于熔融纺制和冷却合成单丝的方法及装置
US8469686B2 (en) * 2007-07-25 2013-06-25 Oerlikon Textile Components Gmbh Apparatus for treating a multifilament thread
DE102010020187A1 (de) * 2010-05-11 2011-11-17 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zum Schmelzspinnen und Abkühlen einer Vielzahl synthetischer Fäden
CN102094250B (zh) * 2010-12-19 2011-12-07 广东秋盛资源股份有限公司 一种再生粗旦异形涤纶短纤维的生产方法
US20140248384A1 (en) * 2011-07-26 2014-09-04 Oerlikon Textile Gmbh & Co. Kg Melt spinning device
CN102912464B (zh) * 2012-11-13 2016-08-24 广州市新辉联无纺布有限公司 一种热塑性材料纺丝设备
JP2016513758A (ja) * 2013-03-15 2016-05-16 エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトＯｅｒｌｉｋｏｎ Ｔｅｘｔｉｌｅ ＧｍｂＨ ＆ Ｃｏ． ＫＧ 複数の合成糸を溶融紡糸し、延伸しかつ巻き取る装置
CN103556241A (zh) * 2013-10-30 2014-02-05 苏州龙杰特种纤维股份有限公司 纺织纤维生产系统
CN103911676B (zh) * 2014-04-03 2016-03-16 湖州厉华妤婕联合纺织有限公司 一种熔纺生成装置
CN105648551B (zh) * 2014-11-27 2019-03-26 日本Tmt机械株式会社 熔融纺丝装置及丝线罩
CN104630913B (zh) * 2015-02-05 2017-04-05 欣龙控股（集团）股份有限公司 用于熔喷法非织造布生产的喷雾冷却方法及其装置
CN105821502B (zh) * 2016-05-27 2018-01-26 浙江显昱纤维织染制衣有限公司 一种纺丝机的冷却箱
CN106367822B (zh) * 2016-11-08 2018-09-04 广东省化学纤维研究所 一种化纤纺丝冷却系统及其应用
CN106757413B (zh) * 2016-11-28 2019-05-24 重庆科技学院 一种空芯静电纺丝喷头
CN107830593B (zh) * 2017-12-06 2023-10-20 宁波大发新材料有限公司 一种化纤纺丝回风空调装置
JP7154808B2 (ja) * 2018-04-20 2022-10-18 株式会社ダイセル 紡糸装置及び紡糸方法
CN108642584B (zh) * 2018-05-23 2021-03-16 北京中丽制机工程技术有限公司 一种分纤母丝纺牵联合机
CN110747518B (zh) * 2019-11-28 2024-09-17 青岛大学 基于溶液纺丝技术的纺丝系统及纺丝设备
CN111778572B (zh) * 2020-07-03 2022-08-05 中鸿纳米纤维技术丹阳有限公司 一种聚乙醇酸抽丝设备
DE102021001308A1 (de) 2021-03-11 2022-09-15 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Abkühlen eines frisch extrudierten Filamentbündels
CN113755956B (zh) * 2021-08-31 2023-06-13 界首市三宝宏达制线有限公司 一种丙纶纤维短丝纺丝设备及纺丝方法
CN115522268A (zh) * 2022-09-28 2022-12-27 桐昆集团浙江恒通化纤有限公司 高密里衬布聚酯纤维生产设备及其生产方法
CN117026397B (zh) * 2023-10-09 2023-12-26 南通摩瑞纺织有限公司 一种纺丝冷却装置

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Also Published As

Publication number Publication date
TW476818B (en) 2002-02-21
CN1226613A (zh) 1999-08-25
CN1138879C (zh) 2004-02-18
KR19990072751A (ko) 1999-09-27
EP0937791A2 (de) 1999-08-25
JPH11279826A (ja) 1999-10-12
EP0937791A3 (de) 1999-12-22
US6103158A (en) 2000-08-15
KR100568882B1 (ko) 2006-04-10
DE59911538D1 (de) 2005-03-10

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