EP3209820B1 - Vorrichtung und verfahren zum schmelzspinnen und kühlen einer filamentschar - Google Patents

Vorrichtung und verfahren zum schmelzspinnen und kühlen einer filamentschar Download PDF

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Publication number
EP3209820B1
EP3209820B1 EP15784608.0A EP15784608A EP3209820B1 EP 3209820 B1 EP3209820 B1 EP 3209820B1 EP 15784608 A EP15784608 A EP 15784608A EP 3209820 B1 EP3209820 B1 EP 3209820B1
Authority
EP
European Patent Office
Prior art keywords
air
cooling
filaments
spinning
cylinder
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.)
Not-in-force
Application number
EP15784608.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3209820A1 (de
Inventor
Klaus Schäfer
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
Oerlikon Textile 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 Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP3209820A1 publication Critical patent/EP3209820A1/de
Application granted granted Critical
Publication of EP3209820B1 publication Critical patent/EP3209820B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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 device for melt spinning and cooling a filament bundle according to the preamble of claim 1, as well as an executable by means of such a device method according to the preamble of claim 9.
  • a plurality of fine strand-like filaments are extruded through nozzle bores of a spinneret.
  • the spinneret is fed a molten polymer under high pressure.
  • the plurality of strand-like filaments are combined in their entirety or in bundles.
  • Prior to combining the filaments are cooled by a cooling air flow, so that the molten state of the filaments after exiting the nozzle bore converts into a solidified state.
  • the uniformity of the cooling of all filaments is of great importance.
  • a cooling air flow generated radially inwardly by an air candle designed as a blow candle causes the cooling of the filament.
  • a blow candle which is a porous Outer cylinder has, so that over the entire circumference of the blow candle, a uniform flow of cooling air radially emerges and penetrates the filament curtain for cooling the filaments.
  • DE10109838A1 and WO2012097880A1 disclose a device for uniformly cooling a filament curtain by means of two concentric and perforated cylinders.
  • the filament curtain to be cooled is annular and located between the two cylinders.
  • the filament curtain is circular, and is inside the double cylinder.
  • DE202005007132U1 discloses an apparatus for melt-spinning and uniformly cooling a filament bundle with a spinner having a spinneret means for extruding filaments into a plurality of rectangular filament curtains, and having a cooling means disposed below the spinner apparatus comprising a double-walled and perforated blast box held between two filament curtains.
  • the DE202005007132U1 disclosed device ensures a homogeneous cooling and a constant product quality of all filaments of all filament curtains.
  • spinning systems can be retrofitted with this only 10-30 mm deep blow box, the space requirement of the device is not increased.
  • the device of claim 1 in addition to the filaments which run outside of an air candle in the form of a filament curtain, filaments are guided in the form of a filament bundle within the air candle.
  • filaments are guided in the form of a filament bundle within the air candle.
  • Both the inner circumference and the outer circumference of this air candle communicate with the filaments with respect to their cooling.
  • the inner circumference of this air candle in order to pressurize both the inside of the air candle and the outside of the air candle running filaments with cooling air, on the one hand the outer circumference and on the other hand, the inner circumference of this air candle as at least partially air-permeable jacket. Parts of the air candle are thus inter alia a perforated outer and a perforated inner cylinder.
  • This hollow cylindrical air candle requires a special Anornung the nozzle holes in the spinneret device.
  • the spinneret device consists of one or more melt distributors and one or several spinnerets. No nozzle bores are present in an annular region of the spinnerette device which adjoins the air candle. Furthermore, both within and outside of this annular region each have a nozzle bore zone in which a plurality of nozzle bores are arranged.
  • the ability to use one or more spinnerets offers the designer the chance to find the optimal design of the device with respect to other problems such as the tightness of the system.
  • the air candle has at least one connection, through which the cooling air is discharged to the air candle to, or out of the air candle out.
  • a separating cylinder is arranged in the interior of the air candle. This creates an outer channel adjacent to the outer cylinder and an inner channel adjacent to the inner cylinder.
  • this setting of different flow states is implemented by appropriate flow-influencing means.
  • the inner channel and the outer channel is assigned to each one, possibly adjustable throttle.
  • a single air connection for the air candle would suffice, but nevertheless different states can prevail or be set in the outer and inner channels.
  • These throttles may further fulfill a function of the flow rectification.
  • Fig. 1 a cross-sectional view of a first embodiment of the device according to the invention for carrying out the method according to the invention is shown.
  • the device consists of a spinning device 1 and a cooling device 11 arranged below the spinning device 1.
  • the spinning device 1 has on a lower side a spinneret device which consists of a melt distributor 4 and a spinneret 5.
  • This spinneret 5 is disposed on the underside of the spinneret assembly and has a plurality of nozzle bores 6. These nozzle bores 6 are arranged in two nozzle bore zones, with a first zone being formed by an outer ring of nozzle bores 6 and a second zone within the first zone is formed by a circular arrangement of nozzle bores 6.
  • the spinneret 5 is connected via the melt distributor 4 with a spinning pump 2.
  • the spinning pump 2 is connected via a melt feed 3 with a melt generator (not shown here), preferably connected to an extruder or a polycondensation.
  • the spinning pump 2, the melt distributor 4 and the spinneret 5 are heated.
  • spin bars are used, in which several spinnerets, e.g. are juxtaposed in a row.
  • the cooling device 11 below the spinning device 1 has an air filter 12 and the associated air channel 20.
  • the air candle 12 has a porous outer cylinder 13 and a porous inner cylinder 14 which may be made of, for example, a nonwoven fabric, a foam, a screen cloth or a sintered material.
  • the air candle 12 adjoins the spinneret 5.
  • the air candle 12 is held concentrically with the spinneret 5, so that the air candle 12 is enveloped by a filament curtain 9, and so that the air candle 12 encloses a filament bundle 10.
  • Filamentschar 7 consists of just this filament curtain 9 and this filament bundle 10, wherein in each case a nozzle bore zone for the extrusion of filament curtain 9 and filament bundle 10 in the spinneret 5 is present.
  • an air channel 20 is connected to the air candle 12.
  • This air duct 20 communicates with a fan 21.1 in connection, through which the air filter 12 either supplied cooling air, or through which cooling air is discharged from the air candle 12.
  • a molten polymer is fed via the spinning pump 2 under high pressure via the melt distributor 4 of the spinneret 5.
  • the polymer melt is forced through the formed on the bottom of a plurality of nozzle bores 6, so that a plurality of strand-like filaments 8 is formed.
  • the extruded filament bundle 7 forms an annular filament curtain 9 and a circular filament bundle 10, which are uniformly withdrawn from the spinneret 5 by a deduction not shown here.
  • a cooling medium is preferably a cooling air supplied via the air passage 20 of the air candle 12 and in the space inside the air candle 12, which is located between the outer cylinder 13 and the inner cylinder 14 forwarded. Now the cooling medium occurs evenly over the outer cylinder 13 of the air candle 12 to the outside and evenly over the inner cylinder 14 to the inside. At the inner and outer circumference of the air candle 12 creates a radial outlet flow, which leads a cooling air flow in the direction of the filament bundle 7. The cooling air flow penetrates into the filament bundle 7 and absorbs heat from filaments 8 of the filament bundle 7, so that the still liquid filaments 8 solidify gradually.
  • the cooling medium could also be removed from the air candle 12 by means of the blower 21.1.
  • ambient air is drawn in from the environment. This ambient air serves as cooling air by first penetrating the filament bundle 7, wherein the filaments 8 deliver their heat to the cooling air.
  • the cooling air flows via the outer cylinder 13 and the inner cylinder 14 into the air candle 12. About the air passage 20, the cooling air leaves the air candle 12 again.
  • the materials of the outer cylinder 13 and the inner cylinder 14 are coordinated so that optimum and preferably uniform cooling conditions for the filament curtain 9 and the filament bundle 10 arise.
  • two different nonwovens with different air resistances could be used for this purpose.
  • the two nozzle bore zones could also be formed by two different spinnerets 5. Even a single nozzle bore zone may consist of several spinnerets.
  • a plurality of circular spinnerets could be arranged to form a ring.
  • the nozzle bores 6, from which the filament bundle 10 is extruded, could also be distributed over several spinnerets.
  • one or more melt distributors 4 and one or more spinning pumps 2 could be used.
  • Fig. 2 is a schematic sectional view of the first exemplary embodiment Fig. 1 shown along the line AA.
  • the concentric arrangement of the regions of the filament bundle 7 and the air candle 12 can be seen particularly well.
  • the inner cylinder 14 of the air candle 12 is arranged.
  • Around the inner cylinder 14 around the outer cylinder 13 is arranged.
  • the cooling air is supplied or removed.
  • the filaments 8 of the filament curtain 9 are arranged annularly around the outer cylinder 13.
  • the cooling air flows, as indicated by the arrows, mainly radially through the Filamentschar 7.
  • the cooling air flows radially outward through the filament curtain 9 and radially inwardly through the filament bundle 10, in the direction of the filled arrowheads . If a negative pressure is applied to the air filter 12, the cooling air flows radially inward through the filament curtain 9 and radially outward through the filament bundle 10, in the direction of the dashed arrowheads.
  • Fig. 3 is a cross-sectional view of a second embodiment of the device according to the invention for carrying out the method according to the invention shown. Many elements are the same as the first Embodiment Fig. 1 , so here's just the changes.
  • a separating cylinder 15 is arranged here, so that an outer channel 16 assigned to the outer cylinder 13 and an inner channel 17 assigned to the inner cylinder 14 are formed.
  • an inner throttle 19 is arranged at the transition between air duct 20 and inner channel 17.
  • an outer throttle 18 is arranged at the transition between air duct 20 and outer channel 16.
  • the inner throttle 19 and the outer throttle 18 may be optionally adjustable with respect to their flow resistance. These two throttles can furthermore be designed such that they serve for the flow rectification.
  • the blower 21. 1 may serve either to supply cooling air to the air candle 12 or to remove cooling air from the air candle 12.
  • Fig. 4 is a schematic sectional view of the second embodiment Fig. 3 shown along the line AA.
  • the two embodiments differ only by the separation cylinder 15, which divides the space between the outer cylinder 13 and inner cylinder 14 in the outer channel 16 and the inner channel 17.
  • Fig. 5 shows a third embodiment of the device according to the invention. This is identical except for the differences described below builds up as the second embodiment Fig. 3 , The outer throttle 18 and the inner throttle 19 are missing in this embodiment.
  • the air duct 20 is divided by appropriate separating means.
  • the outer channel 16 is associated with a fan 21.1, the inner channel 17 another fan 21.2. Also in this way, the cooling air flows for the filament bundle 10 and the filament curtain 9 can be set separately from each other.
  • This version with two blowers offers many possibilities for cooling air flow.
  • both the inner channel 17 as well as the outer channel 16 are both subjected to pressure or both with negative pressure. Furthermore, a mutual control is possible.
  • the outer channel 16 is evacuated and the inner channel 17 are pressurized or vice versa.
EP15784608.0A 2014-10-23 2015-10-16 Vorrichtung und verfahren zum schmelzspinnen und kühlen einer filamentschar Not-in-force EP3209820B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014015729.6A DE102014015729A1 (de) 2014-10-23 2014-10-23 Vorrichtung und Verfahren zum Schmelzspinnen und Kühlen einer Filamentschar
PCT/EP2015/073984 WO2016062626A1 (de) 2014-10-23 2015-10-16 Vorrichtung und verfahren zum schmelzspinnen und kühlen einer filamentschar

Publications (2)

Publication Number Publication Date
EP3209820A1 EP3209820A1 (de) 2017-08-30
EP3209820B1 true EP3209820B1 (de) 2018-09-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP15784608.0A Not-in-force EP3209820B1 (de) 2014-10-23 2015-10-16 Vorrichtung und verfahren zum schmelzspinnen und kühlen einer filamentschar

Country Status (6)

Country Link
EP (1) EP3209820B1 (zh)
JP (1) JP2017531746A (zh)
KR (1) KR20170072927A (zh)
CN (1) CN107075735B (zh)
DE (1) DE102014015729A1 (zh)
WO (1) WO2016062626A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109811418B (zh) * 2019-03-11 2021-08-17 江阴市德赛环保设备有限公司 原生三维单组份纤维生产线及生产工艺
CN111809256A (zh) * 2020-07-07 2020-10-23 诸暨永新色纺有限公司 一种冰凉感抗菌涤纶poy丝的制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005007132U1 (de) * 2005-05-04 2005-08-04 Diolen Industrial Fibers Gmbh Spinnanlage zum Schmelzspinnen und Kühlen einer Filamentschar

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4712988A (en) * 1987-02-27 1987-12-15 E. I. Du Pont De Nemours And Company Apparatus for quenching melt sprun filaments
DE10109838A1 (de) * 2000-03-11 2001-09-20 Barmag Barmer Maschf Vorrichtung zum Abkühlen einer synthetischen Filamentschar beim Schmelzspinnen
DE10134003A1 (de) * 2001-07-12 2003-01-23 Neumag Gmbh & Co Kg Vorrichtung zum Schmelzspinnen und Kühlen einer Filamentschar
JP2004124338A (ja) * 2002-10-07 2004-04-22 Nan Ya Plast Corp 細デニールポリエステル中空予備延伸糸の製造方法及びその方法から製造された細デニールポリエステル中空予備延伸糸
WO2004088008A1 (de) * 2003-04-03 2004-10-14 Saurer Gmbh & Co. Kg Verfahren und vorrichtung zur herstellung von bcf-fäden
EP1467005A1 (de) * 2003-04-12 2004-10-13 Saurer GmbH & Co. KG Verfahren und Vorrichtung zum Schmelzspinnen und Kühlen einer Filamentschar
CN103328700B (zh) * 2011-01-22 2016-08-31 欧瑞康纺织有限及两合公司 用于冷却大量合成丝线的装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005007132U1 (de) * 2005-05-04 2005-08-04 Diolen Industrial Fibers Gmbh Spinnanlage zum Schmelzspinnen und Kühlen einer Filamentschar

Also Published As

Publication number Publication date
CN107075735A (zh) 2017-08-18
KR20170072927A (ko) 2017-06-27
WO2016062626A1 (de) 2016-04-28
JP2017531746A (ja) 2017-10-26
EP3209820A1 (de) 2017-08-30
CN107075735B (zh) 2019-02-01
DE102014015729A1 (de) 2016-04-28

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