EP2783028A1 - Dispositif de fabrication d'un câble de filature - Google Patents

Dispositif de fabrication d'un câble de filature

Info

Publication number
EP2783028A1
EP2783028A1 EP12797785.8A EP12797785A EP2783028A1 EP 2783028 A1 EP2783028 A1 EP 2783028A1 EP 12797785 A EP12797785 A EP 12797785A EP 2783028 A1 EP2783028 A1 EP 2783028A1
Authority
EP
European Patent Office
Prior art keywords
cooling air
stations
blower
sensor
melt spinning
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.)
Withdrawn
Application number
EP12797785.8A
Other languages
German (de)
English (en)
Inventor
Johannes INGWERSEN
Günter SCHÜTT
Thorsten Wawra
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 EP2783028A1 publication Critical patent/EP2783028A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • D01D13/00—Complete machines for producing artificial threads
    • D01D13/02—Elements of machines in combination

Definitions

  • the invention relates to an apparatus for producing a tow of a plurality of extruded fiber bundles according to the preamble of claim 1.
  • the fiber bundles are spinning stations in several preferably arranged in a series melt produced and deducted together after preparation and merged into the tow.
  • the tow can then be fed directly to a subsequent fiber line or alternatively place in a spinning can.
  • a device used for this purpose is known for example from DE 102 30 964 AI.
  • the known device has a plurality of melt spinning stations, which are arranged in a row and each having a spinneret for extruding a plurality of filament strands sen.
  • the filament strands form a fiber bundle, which are withdrawn per melt spinning station after cooling and preparation together with the adjacent fiber bundles through a take-off device.
  • each of the melt spinning stations each have a blow candle, which is arranged centrally below the spinneret and applied to the guided at the periphery of the blow candle filament strands with a cooling air.
  • the blown candles are connected to a cooling air supply, so that each of the connected blower ores is supplied with a cooling air flow.
  • the cooling air is usually provided by a central cooling air source, which via a plurality of air channels with the respective blower ores connected is. Due to different cable lengths, the cooling air must be generated with relatively high supply pressures, due to different lengths of the cooling air ducts additional controls such as butterfly valves are required to receive at each of the connected blower spinning in all melt spinning stations same cooling air flow to cool the filament strands. Since the physical properties of the extruded filament strands are essentially determined by the cooling by the cooling air flow, therefore, a relatively high outlay for uniform supply of blow moulines associated with the melt spinning stations is required.
  • Another object of the invention is to provide a device of the generic type, in which the cooling air supply can be operated with the lowest possible energy to set uniform cooling air flows.
  • the cooling air supply means comprises a plurality of controllable cooling air stations, which are independently connected to at least one of the blow candles.
  • each of the blown candles is connected to a cooling power source, so that the provision of the cooling air has to be adapted exclusively to the conditions of the blower candle and the air duct formed between the blower and the cooling air station.
  • the cooling air can be generated with relatively low supply pressure.
  • an adjustment of the cooling air supply is individually and quickly executable by the controllable cooling air station.
  • the cooling power supply of the blow candles can be done with the most constant and controllable flow rates, according to an advantageous development, each of the cooling air stations on a controllable fan and a blower driving fan motor.
  • the volume flow generated by the respective cooling air station can be set in a rather simple manner by a speed of the blower motor on the blower.
  • each of the fans is assigned a control unit which is coupled to a blower motor of the relevant blower.
  • the cooling air flow for supplying the blow candle can be adjusted particularly advantageous by changing the speed of the fan motor.
  • very precise settings of the cooling air at each of the fans to supply the blow molders in the enamel spinning stations are possible.
  • control devices are each assigned a sensor, which sensor detects a measured variable of the cooling air supply on an outlet side of one of the fans. This gives you the opportunity to permissible deviations of the cooling air supply make a corrective intervention.
  • the senor, the relevant control unit and the fan motor of the relevant blower is advantageously connected to a control circuit to ensure a desired value of a cooling air flow during operation of the device.
  • an air pressure of a blow candle is preferably detected as the measured variable, so that the sensor is formed by a pressure sensor.
  • the respective actual measured value is assigned as a runtime-related correction value in order to obtain a uniform cooling of the filament strands within the melt spinning station over the term.
  • the senor by means of a volumetric flow sensor for detecting a volumetric flow which is assigned to the relevant blower on the outlet side. This ensures that over the operating time of the device, a uniform cooling air supply remains guaranteed.
  • control devices are connected to a central control unit.
  • predetermined target values can be specified for each of the control units depending on the product and process.
  • the development of the invention is preferably carried out at which the fans are individually connected via separate air ducts with the blow candles so that a supply pressure of 1000 Pa is not exceeded.
  • the blowers could be assigned to one or two blow candles.
  • the inventive device is characterized in that the fiber bundles produced in the melt spinning stations have a high uniformity of the physical properties, and thus are particularly suitable to be processed as a tow to high quality staple fibers can.
  • Fig. 1 shows schematically a first embodiment of the device according to the invention
  • a first embodiment of the device according to the invention for producing a tow of a plurality of extruded fiber bundles is shown schematically in a view.
  • the apparatus has a plurality of melt spinning stations for extruding a plurality of fiber bundles arranged side by side in a row.
  • only four juxtaposed enamel spinning stations 1.1 to 1.4 are shown.
  • the number of enamel spinning stations is arbitrary and depends essentially on the total titre of the spinning tow to be produced.
  • the melt spinning stations 1.1 to 1.4 are constructed identically, so that only the enamel spinning station 1.1 will be explained in more detail below.
  • the melt spinning stations 1.1 has an annular spinneret 5, which is connected via a melt inlet 6 with a melt source, not shown here.
  • the melt inlet 6 is coupled via a spinning pump 7 with the spinneret 5.
  • the spinneret 5 has on its underside a plurality of nozzle bores, through which a funded via the spinning pump 7 polymer melt is extruded, so that a plurality of filament strands at the bottom with the spinneret 5 exit.
  • the spinneret 5 is usually held in a heated spinning beam, which is not shown here.
  • each of the melt spinning stations 1.1 to 1.4 are each assigned a Blaskerze 3.1 to 3.4.
  • the Blaskerzen 3.1 to 3.4 are within the melt spinning stations 1.1 to 1.4 respectively centrally located below the spinnerets 5, so that the extruded filament strands enclose the respective blow candle coat-shaped.
  • the blower candles 3.1 to 3.4 are coupled to a cooling air supply device 4 which has a plurality of cooling air stations 12.1 to 12.4.
  • each enamel spinning station 1.1 to 1.4 associated with one of the cooling air stations 12.1 to 12.4.
  • the cooling air stations 12.1 to 12.4 are identical, so that only the construction of the cooling air station 12.1 will be explained below.
  • the cooling air station 12.1 has a blower 13, which is connected via a cooling air duct 16 with the blow candle 3.1. On the suction side, the blower 13 is coupled to an air conditioning device, not shown here, through which a climatic air is kept. The blower 13 is driven by a blower motor 14, which is coupled to a control unit 15. The control unit 15 is provided with a volume flow sensor 17, which is disposed on the outlet side of the blower 13 in the cooling air passage 16.
  • the control units 15 of the cooling air stations 12.1 to 12.4 are connected to a central control unit 19, by means of which the entire cooling air supply device 4 of the device can be controlled.
  • the sensor 17, the control unit 15 and the blower motor 14 of the relevant blower 13 are connected to a control circuit so that a setpoint value of a cooling air flow predetermined via the control unit 15 can be continuously monitored and corrected.
  • an actual value of the volume flow can be detected via the volume flow sensor 17 and given to the control unit 15.
  • a comparator is arranged, which performs an actual-target comparison.
  • the fan motor 14 is corrected in its drive speed via the control unit 15 such that the fan 13 increases or decreases the cooling air flow.
  • the cooling air stations 12.1 to 12.4 independently regulate the respective cooling air flow which is used via the respective associated blow candle 3.1 to 3.4 in order to uniformly cool the extruded fiber bundles 2.1 to 2.4.
  • a uniform cooling of the respective filament strands can be achieved.
  • the melt spinning stations 1.1 to 1.4 several preparation devices 9 are assigned to each spinnnstation 1.1 to 1.4 each have a preparation ring 9.1 and several preparation rollers 9.2.
  • the preparation ring 9.1 is immediately below a Cooling shaft 8 arranged to apply a first spin coating from the outside to the extruded filament strands.
  • a plurality of preparation rollers 9.2 are provided in order to combine the respective fiber bundles formed by filament strands.
  • the fiber bundles 2.1 to 2.4 are deducted by a laterally next to the melt spinning stations 1.1 to 1.4 arranged extraction devices 10.
  • the take-off device 10 has a plurality of take-off rolls 10.1 in order to jointly guide the fiber bundles 2.1 to 2.4 as a tow cable 11.
  • the take-off device 10 are preceded by further preparation rollers.
  • the Blaskerzen are 3.1 to 3.4 centric to the melt spinning station 1.1 to 1.4, wherein the cooling air passage 16 penetrates the spinneret 5, so that the cooling air stations 12.1 to 12.2 above the melt spinning stations 1.1 to 1.4 are arranged ,
  • the embodiment of FIG. 2 shows only three melt spinning stations 1.1 to 1.3, which are connected together via a melt inlet 6 with an extruder 20.
  • the number of enamel spinning stations is exemplary, with such devices usually more in practice have as three enamel spinning stations.
  • the melt spinning stations 1.1 to 1.3 are substantially identical to the melt spinning stations of the embodiment of FIG. 1, so that each of the melt spinning stations 1.1 to 1.3 a spinning pump 7 and a spinneret 5 has.
  • the spinneret 5 and the spinning pump 7 are connected to the extruder 20 via a melt inlet 6.
  • the extruder 20 produces a polymer melt which is supplied to the melt spinning stations 1.1 to 1.3.
  • the spinning pumps 7 and the spinnerets 5 of the melt spinning stations 1.1 to 1.3 are usually arranged in a heated spinning beam, which is not shown here.
  • the Blaskerzen 3.1 to 3.3 for this purpose a separate movable holder 21.1, 21.2 and 21.3 assigned. About the movable holder 21.1 to 21.3, the Blaskerzen are 3.1 to 3.3 connected to adeluftzu slaughter slaughter 4.
  • the cooling air supply device 4 is likewise formed by a plurality of cooling air stations 12.1 to 12.3 in this exemplary embodiment, wherein each of the cooling air stations 12.1 to 12.3 is constructed identically.
  • the cooling air stations 12.1 to 12.3 are substantially identical to the embodiment of FIG. 1, so that only the differences are explained below. In the embodiment of the cooling air stations 12.1 to 12.3 shown in FIG.
  • the sensor for regulating a cooling air flow is formed by a pressure sensor 18 which is directly associated with the relevant blow candle 3.1, 3.2 or 3.3.
  • a pressure sensor 18 By means of the pressure sensor 18, an internal pressure of the blow candle 3.1, 3.2 or 3.3 can be detected and fed to the control unit 15.
  • an actual target comparison is carried out, so that in the event of a deviation, a speed cor- the fan motor 14 can be initiated so that the fan 13 generates a higher or lower cooling air flow.
  • the control devices 15 are also connected in this embodiment with a central control unit 19, so that a higher-level control of the cooling air supply 4 is possible.
  • melt spinning stations 1.1 to 1.3 To merge the filament strands within one of the melt spinning stations 1.1 to 1.3 are the melt spinning stations 1.1 to 1.3 several preparation devices 9, each with a preparation ring for external wetting (not shown here) and with several preparation rollers 9.2 assigned by each of which a fiber bundle 2.1 to 2.3 is generated.
  • a trigger device 10 Side of the melt spinning stations 1.1 to 1.3, a trigger device 10 is provided which has a plurality of take-off rollers 10.1.
  • the discharge device 10 is additionally preceded by an additional wetting device 22 which has a plurality of wetting rollers 22.1 for wetting and merging all the fiber bundles 2.1 to 2.3 into a tow cable 11.
  • the tow 11 can then be fed directly to a fiber line for further treatment. Alternatively, however, it is also possible to deposit the tow 11 for temporary storage in a spinning chamber. However, it is also possible to combine the fiber bundles 2.1 to 2.4 without additional wetting in the case of a direct withdrawal of the tow 11.
  • connection of the blower 13 to the blow candles 3.1 to 3.4 is carried out by cooling air ducts 16 of such short design, so that a low supply pressure is required for the cooling power supply of the blow candles 3.1 to 3.4. It turned out that at the usual large systems very low supply pressures in the range of 400 to 500 Pa were required to produce comparable cooling performance of the blow molders. These relatively low supply pressures could be maintained at one of the cooling stations even with the connection of two dies. The energy consumption of the cooling stations was well below a conventional in the prior art central supply by only one cooling air station.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

L'invention concerne un dispositif de fabrication d'un câble de filature composé d'une pluralité de faisceaux de fibres extrudés au moyen de plusieurs stations de filage par fusion disposées en série. Les stations de filage par fusion présentent respectivement une filière de filage pour extruder un des faisceaux de fibres, plusieurs dispositifs de préparation et un dispositif d'extraction étant affectés aux stations de filage par fusion pour l'extraction et l'assemblage de tous les faisceaux de fibres. Le refroidissement des branches de fibres extrudées sous la station de filage par fusion est réalisé au moyen de plusieurs bougies de soufflage reliées à un dispositif d'alimentation de refroidissement. Pour obtenir un réglage uniforme du flux d'air de refroidissement par station de filage par fusion, le dispositif d'alimentation de refroidissement est composé de plusieurs stations d'air de refroidissement commandables pour produire plusieurs flux d'air de refroidissement, reliées indépendamment les unes des autres à au moins une des bougies de soufflage.
EP12797785.8A 2011-11-26 2012-11-16 Dispositif de fabrication d'un câble de filature Withdrawn EP2783028A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011119496 2011-11-26
PCT/EP2012/072862 WO2013076017A1 (fr) 2011-11-26 2012-11-16 Dispositif de fabrication d'un câble de filature

Publications (1)

Publication Number Publication Date
EP2783028A1 true EP2783028A1 (fr) 2014-10-01

Family

ID=47297159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12797785.8A Withdrawn EP2783028A1 (fr) 2011-11-26 2012-11-16 Dispositif de fabrication d'un câble de filature

Country Status (4)

Country Link
EP (1) EP2783028A1 (fr)
CN (1) CN104053828A (fr)
IN (1) IN2014CN04664A (fr)
WO (1) WO2013076017A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3081676A1 (fr) * 2015-04-16 2016-10-19 NV Michel van de Wiele Machine de production de fils synthétiques
CN108301057A (zh) * 2018-03-13 2018-07-20 张家港锦亿化纤有限公司 化纤丝的冷却装置
CN113235225B (zh) * 2021-04-14 2022-11-08 清华大学深圳国际研究生院 一种基板材料及其制备方法
CN114808160B (zh) * 2022-05-31 2023-08-11 浙江安吉华逸化纤有限公司 一种单层石墨烯多功能复合纤维熔体纺丝设备及工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4404258A1 (de) * 1993-02-22 1994-08-25 Barmag Barmer Maschf Anblaseinrichtung in einer Spinnanlage für thermoplastische Fäden
DE10039093A1 (de) * 1999-08-13 2001-03-29 Barmag Barmer Maschf Steuereinrichtung
DE10230964A1 (de) * 2002-07-10 2004-01-22 Neumag Gmbh & Co. Kg Verfahren und Vorrichtung zum Schmelzspinnen und Zerschneiden eines Spinnkabels
DE502006003037D1 (de) * 2005-11-24 2009-04-16 Oerlikon Textile Gmbh & Co Kg Verfahren und vorrichtung zum schmelzspinnen und abkühlen eines multifilen fadens mit kühllufttemperaturmessung innerhalb des filamentbündels
DE102010020187A1 (de) * 2010-05-11 2011-11-17 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zum Schmelzspinnen und Abkühlen einer Vielzahl synthetischer Fäden

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013076017A1 *

Also Published As

Publication number Publication date
WO2013076017A1 (fr) 2013-05-30
CN104053828A (zh) 2014-09-17
IN2014CN04664A (fr) 2015-09-18

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