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EP0837161B1 - Method and apparatus for spinning thermoplastic filaments - Google Patents

Method and apparatus for spinning thermoplastic filaments Download PDF

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Publication number
EP0837161B1
EP0837161B1 EP97118082A EP97118082A EP0837161B1 EP 0837161 B1 EP0837161 B1 EP 0837161B1 EP 97118082 A EP97118082 A EP 97118082A EP 97118082 A EP97118082 A EP 97118082A EP 0837161 B1 EP0837161 B1 EP 0837161B1
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EP
European Patent Office
Prior art keywords
spinning
extruder
pump
stream
auxiliary
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
EP97118082A
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German (de)
French (fr)
Other versions
EP0837161A2 (en
EP0837161A3 (en
Inventor
Peter Berger
Egon Gathmann
Wolfgang Imping
Klaus Dr. Schäfer
Rahim Gross
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 Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik AG
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Filing date
Publication date
Application filed by Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0837161A2 publication Critical patent/EP0837161A2/en
Publication of EP0837161A3 publication Critical patent/EP0837161A3/en
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Publication of EP0837161B1 publication Critical patent/EP0837161B1/en
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    • 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
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/06—Feeding liquid to the spinning head

Definitions

  • the invention relates to a method and an apparatus for spinning thermoplastic threads according to the preamble of claim 1 and the Preamble of claim 13.
  • the additives for example for UV stabilization or for spin dyeing, with an additional extruder fed to the melt in the main extruder.
  • the feeding of the Additives are added at the end of the main extruder into a dynamic one Mixer. From there, the melt reaches a via a melt line Spinning station that has a spinning pump and a spinneret.
  • the main extruder supplies one in a spinning beam arranged spinning station with several spinnerets at the same time.
  • the Melt passed from the main extruder to a distributor pump.
  • a such a distribution pump shares the Main melt flow in several component streams and feeds them each a spinneret.
  • DE-24 30 533 describes a process for producing a polyester thread, in which melted polyester and melted polyether-polyester block copolymer in one Spinneret can be united.
  • US 4,617,235 discloses a method for spinning thermoplastic threads, in which an additive and the main melt stream within one Spinneret can be united.
  • Another object of the invention is the method and the device to design that the spinning system can be operated with maximum flexibility can.
  • This object is achieved in that the bypass with the additive and the main melt stream inside the spinning beam be united.
  • the particular advantage here is the short dwell time and the associated low temperature load of the Additives. As a result, temperature-critical additives can also be processed become. In addition, this allows short changeover times when changing additives realize.
  • the process variant according to claim 2 also has the advantage that a high flexibility of the spinning system is achieved. Although all spinning positions of a main extruder, each individual spinning station can be individually be operated with regard to the admixture of additives. The merge of the secondary flow and the main melt flow takes place here advantageous in the mixer of the spinning station. This ensures high distribution uniformity even with large differences in viscosity between Polymer and additives achieved.
  • the process also has the advantage that the smallest amounts of the additive are accurate and reproducible to the main melt stream can be added.
  • a particularly advantageous development of the method is according to claim 4 and 5 before that the sidestream generated within the spinning beam becomes.
  • the thermal energy of the spinning beam becomes Heat treatment of the additive used. This is the process variant especially suitable for additives that have a meltable consistency.
  • the method variant according to claim 6 is particularly advantageous if other polymer materials or a masterbatch to the main melt stream must be added.
  • the melting energy is in turn from the Spin beam heating gained.
  • the bypass flows out when it emerges the secondary extruder is conveyed by means of a feed pump. This can the secondary extruder can be operated at a low pressure level, which is has a favorable effect on wear.
  • the pump admission pressure of the feed pump is set via a radial screw play of the secondary extruder.
  • the snail game is the gap between the outside diameter of the screw Secondary extruder and the inner diameter of the cylinder walls of the Secondary extruder defined. With this version the feed pump always has enough melt available.
  • the Process variant of advantage in which the additive or granulate dosed is supplied In order to maintain constant utilization of the secondary extruder, the Process variant of advantage in which the additive or granulate dosed is supplied. In this case, the filling level of the pump is checked determines the throughput of the secondary extruder.
  • the device according to the invention is characterized in that the Infeed device for generating the additive bypass flow directly through a Feed line is connected to the spinning beam. This will be very short distances between the feed device and the spinning station, so that short rinsing times are achieved.
  • the feed line advantageously opens into the mixer of the spinning station, so that a uniform mixing of the secondary flow and the main melt flow is guaranteed.
  • the device is designed such that the additives can be tempered evenly during the feed.
  • a particularly advantageous development of the device according to the claims 15 and 16 has the advantage that the heating of the secondary extruder is guaranteed by the spinning beam.
  • This device is especially suitable for small amounts of an additional polymer material melt and feed the main melt stream.
  • the development of the device according to claim 18 has the advantage that the secondary extruder must generate a lower pressure, so that wear the extruder parts less quickly.
  • the arrangement according to claim 19 is advantageous to a Motor drive both the extruder screw and the feed pump.
  • Fig. 1 is a spinning system for spinning thermoplastic schematically Threads shown.
  • the thermoplastic material is fed through a filling device 3 given to extruder 1.
  • the extruder 1 is powered by a motor 4 driven.
  • the thermoplastic material is melted in the extruder 1.
  • the deformation work (shear energy), which is introduced into the material by the extruder 1.
  • Heating device (not shown here) is provided.
  • the melt line 7 the melt reaches a spinning station 24.
  • the spinning station 24 becomes here by a mixer 10, a distributor pump 11 and several Spinning nozzles 9 are formed, which are arranged in a spinning beam 8 and with a heat transfer fluid or steam are heated.
  • the melting line 7 is connected to the mixer 10.
  • a secondary extruder 2 is included its extruder barrel 13 partially arranged in the spinning beam 8.
  • the Auxiliary extruder is fed via the filling device 6.
  • the drive of the Auxiliary extruder 2 is carried out by the motor 5.
  • Inside the spinning beam 8 is the secondary extruder 2 via the feed line 14 with the mixer 10 connected. This allows the input via the filling device 6 Additives as a secondary flow generated by the secondary extruder through the feed line get to the mixer 10. Mixing takes place in the mixer 10 of the main melt stream emerging from the melt line 7 and the In addition to current. After mixing, the melt of the distributor pump 11 fed.
  • the arrangement of the secondary extruder 2 is chosen here that the energy required to melt the additives from the Heating of the spinning beam 8 is removed.
  • the main melt stream is divided into several individual melt streams and via the melt distribution lines 15 to the individual spinnerets 9 directed.
  • the spinnerets 9 are round nozzles with up to 150,000 nozzle holes executed.
  • the spinnerets 9 spin the polymer melt into filaments.
  • the filament bundle 17 is then passed through the blow chute 16 guided and cooled evenly by means of an air stream.
  • At the end of The chute 16 becomes the filament bundle by means of the preparation device 19 merged into a thread 18.
  • the thread 18 is then in the Drafting unit 20 guided.
  • the drafting system 20 has two wrapped multiple times Godets with one overflow roller each. After stretching the thread 18 is then wound up in the winder 21 to form a bobbin.
  • FIG. 2 shows another embodiment of a spinning system.
  • the polymer melt melted by the extruder 1 led to a filter 22 via the melt line 7.
  • Each of the individual smelting lines leads the Melt flow to a spinning station 24.1 to 24.4.
  • the spinning positions 24.1 to 24.4 are arranged in a spinning beam 8.
  • the spinning beam 8 is heated by diphyl.
  • Each of the spinning positions 24.1 to 24.4 consists of a mixer 10, a distributor pump 11 and the spinnerets 9.
  • Each Spinning stations 24.1 to 24.4 are each assigned an infeed device.
  • the feed device has a filling device 26 which is connected to a Pump 25 is connected.
  • the pump 25 is in turn via the feed line 14 connected to the mixer 10 of the respective spinning station.
  • the feed device is essentially outside the Spinning station or the spinning beam arranged.
  • This facility is therefore Particularly suitable for temperature-sensitive additives that have a low level Withstand dwell time at higher temperature. It also requires this Spinning system short changeover times, since no flushing of the distribution lines between the main extruder and the spinning station is required.
  • With the in 2 are advantageously liquid or powdery Additives added to the main melt stream.
  • FIG. 3 shows a further exemplary embodiment of a spinning system.
  • the main melt flow divided and one spinning station via the individual melt lines 23 24 fed.
  • a secondary extruder 2 is used to feed the additives provided that introduces the additives into the feed line 14.
  • the Feed line 14 each branch to a spinning station 24.1 and 24.2 Parallel lines 27.1 and 27.2 from, so that the bypass is divided.
  • the main melt stream is combined and the secondary flow in the mixer 10.
  • a dynamic mixer for blending of the two streams is used.
  • the dynamic mixer is combined with the distributor pump as in WO 94/19516 known.
  • the main melt stream is via the melt line 7 in an inlet chamber 35th of the mixer.
  • the bypass flows through the feed line 14 also in the inlet chamber 35.
  • the inlet chamber 35 is flush with a drive shaft 28 in front of a housing cover 36 of the distributor pump.
  • the Pump shaft 28 is at the end projecting into the inlet chamber 35 formed as a mixing shaft 37. The passes from the mixing chamber 35 Melt via the subchannels 38 to the distributor pump.
  • the distributor pump is arranged by two in parallel planes by an intermediate plate 34 separate planetary gear sets are formed.
  • the wheelsets are through the housing plates 32 and 33 chambered.
  • the sun gear 29 on the Drive shaft 28 driven.
  • the sun gear 29 meshes with the planet gears 30 and 31.
  • the melt flow thus becomes the outlet channels 39 promoted.
  • FIG. 5 an embodiment of a spinning beam is shown, as in of the spinning system from FIG. 1 or FIG. 3 can be used.
  • the spinning beam has a spinning station with the two spinnerets 9.
  • the spinnerets 9 are through the melt manifolds 15 with the manifold pump 11 connected.
  • the distributor pump 11 has a driven sun gear 29 and the planet gears 30 and 31.
  • Concentric to the drive shaft 28 of the pump 11 is the inlet chamber 35 of the mixer 10 educated.
  • the mixing devices 43 are inside the drive shaft 28 the inlet chamber 35 is arranged.
  • the drive shaft 28 ends outside of Spin beam and is coupled to the motor 42.
  • the inlet chamber 35 is connected to the melt line 7.
  • Between the distributor pump 11 and the mixer 10 has two melt channels 44.1 and 44.2.
  • the Feed line 14.2 connects the mixer 10 to a feed pump 45.
  • the feed pump is arranged within the housing plate 33. flush an extruder screw 40 is arranged to the pump wheel 41.
  • the extruder screw 40 and the impeller 41 are connected to each other.
  • the extruder screw 40 is in the extruder barrel 13 of the secondary extruder 2 admitted.
  • the extruder cylinder 13 is connected to the filling device 6.
  • the filling device 6 has a metering device 54.
  • the extruder screw ends outside the spinning beam and is with the motor 5 coupled.
  • the spinning beam 8 is heated, for example, diphyl.
  • the main melt stream passes through the feed line 7 in the inlet chamber 35 of the mixer 11.
  • Additive metered in via the filling device 6 through the secondary extruder 2 melted and homogenized. Then this generated one arrives Secondary flow via the feed channel 14.1 to the feed pump 45
  • the feed pump then conveys the secondary flow via the feed line 14.2 to the inlet chamber 35 of the mixer 10.
  • Im Mixer 10 is the mixing of the main melt stream with the In addition to electricity.
  • the distributor pump acts as a double single pump, each with one of the two Spinnerets 9 is connected by the melt distribution line 15.
  • Another way to influence the filling level of the feed pump consists of the pump pre-pressure as a signal for the metering setting in the filling device to use.
  • the secondary extruder has one variable fill level.
  • the feed device is by a pump 25 formed, which is connected to a feed channel 48 via the filling device 6 is.
  • the feed channel 48 and the pump 25 are within the Spinning beam 8 arranged.
  • the pump 25 is a gear pump with the Pump wheels 41 and 49 formed.
  • the impeller 41 is on the Drive shaft 50 and the motor 5 driven. The sidestream generated with it is fed to the mixer 10 via the feed line 14.
  • FIG. 7 shows a further exemplary embodiment of a spinning beam, as can be used, for example, in the spinning system from FIG. 1 or FIG. 3.
  • the mixer 10 is on the side of the distributor pump 11 facing away from the drive arranged.
  • the drive shaft 28 by the outside of the spinning beam 8 arranged motor 42 is driven so that the opposite end of the pump drive shaft as a mixer shaft 37 is executed and protrudes into the mixing chamber 35.
  • the feed line 14.2 connects the Feed pump 45 with the melt line 7, so that the bypass and Main flow together through an inlet opening in the mixer chamber 35 enter.
  • the feed pump 45 is connected via the feed line 14.1 to the Auxiliary extruder 2 connected.
  • the feed pump and the auxiliary extruder are arranged such that the drive shaft 50 of the feed pump 45 and the Shaft 52 of the extruder screw 40 together with a gear 51 are driven.
  • the gear 51 is connected via a drive shaft 53 connected to the engine 5.
  • the feed device is according to the embodiment Fig. 7 also with the mixer arrangement from the embodiment Fig. 5 can be combined.
  • the required thermal energy is e.g. for plasticizing a color masterbatch gained from heating the spinning beam.
  • an additional heater especially heating tapes, for the Use extruder.

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

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Spinnen von thermoplastischen Fäden gemäß dem Oberbegriff von Anspruch 1 und dem Oberbegriff von Anspruch 13.The invention relates to a method and an apparatus for spinning thermoplastic threads according to the preamble of claim 1 and the Preamble of claim 13.

Ein derartiges Verfahren ist bekannt und z.B. im Konferenz-Einzelbericht zur 33. Internationalen Chemiefasertagung, Dornbirn, 1994, Seiten 1 - 11, beschrieben. Bei dem bekannten Verfahren werden die Additive, beispielsweise zur UV-Stabilisierung oder zum Spinnfärben, durch einen Zusatzextruder der Schmelze im Hauptextruder zugeführt. Die Einspeisung der Additive erfolgt dabei am Ende des Hauptextruders in einen dynamischen Mischer. Von dort gelangt die Schmelze über eine Schmelzeleitung zu einer Spinnstelle, die eine Spinnpumpe und eine Spinndüse aufweist.Such a method is known and e.g. in the individual conference report on 33rd International Synthetic Fiber Conference, Dornbirn, 1994, pages 1 - 11, described. In the known method, the additives, for example for UV stabilization or for spin dyeing, with an additional extruder fed to the melt in the main extruder. The feeding of the Additives are added at the end of the main extruder into a dynamic one Mixer. From there, the melt reaches a via a melt line Spinning station that has a spinning pump and a spinneret.

Bei Spinnanlagen versorgt der Hauptextruder eine in einem Spinnbalken angeordnete Spinnstelle mit mehreren Spinndüsen gleichzeitig. Dabei wird die Schmelze von dem Hauptextruder zu einer Verteilerpumpe geleitet. Eine derartige Verteilerpumpe, wie aus der WO 94/19516 bekannt, teilt den Hauptschmelzestrom in mehrer Einzelteilströme und führt diese jeweils zu einer Spinndüse.In spinning systems, the main extruder supplies one in a spinning beam arranged spinning station with several spinnerets at the same time. The Melt passed from the main extruder to a distributor pump. A such a distribution pump, as known from WO 94/19516, shares the Main melt flow in several component streams and feeds them each a spinneret.

Die DE-24 30 533 beschreibt ein Verfahren zur Herstellung eines Polyesterfadens, bei dem geschmolzenes Polyester und geschmolzenes Polyäther-Polyesterblockmischpolymer in einer Spinndüse vereint werden. Die US 4,617,235 offenbart ein Verfahren zum Spinnen von thermoplastischen Fäden, bei dem ein Additiv und der Hauptschmelzstrom innerhalb einer Spinndüse vereint werden.DE-24 30 533 describes a process for producing a polyester thread, in which melted polyester and melted polyether-polyester block copolymer in one Spinneret can be united. US 4,617,235 discloses a method for spinning thermoplastic threads, in which an additive and the main melt stream within one Spinneret can be united.

Bei dem bekannten Verfahren tritt das Problem auf, daß beim Wechsel der Additive beispielsweise beim Farbwechsel hohe Ausfallzeiten an der Anlage entstehen. Um die neue Fadenqualität spinnen zu können, muß die Anlage vom Ende des Hauptextruders bis zur Spinnstelle gespült werden.In the known method, the problem arises that when changing the Additives, for example, long downtimes on the system when changing colors arise. In order to be able to spin the new thread quality, the system must from the end of the main extruder to the spinning position.

Zudem weisen derartige Spinnanlagen den Nachteil auf, daß die gesamte Spinnanlage gleichzeitig nur Fäden mit einer typischen Schmelzezusammensetzung herstellen kann.In addition, such spinning systems have the disadvantage that the entire Spinning plant only threads with a typical melt composition at the same time can manufacture.

Demgemäß ist es Aufgabe der Erfindung, ein Verfahren der eingangs genannten Art sowie die zur Anwendung des Verfahrens geeigneten Vorrichtungen derart weiterzubilden, daß physikalisch und chemisch gleiche Bedingungen der Schmelze in den unterschiedlichen Spinndüse gewährleistet werden und eine Beimengung der Additive so spät wie möglich in der Verarbeitungsfolge der Schmelze erfolgen kann. Ein weiteres Ziel der Erfindung ist es, das Verfahren sowie die Vorrichtung so zu gestalten, daß die Spinnanlage mit maximaler Flexibilität betrieben werden kann.Accordingly, it is an object of the invention to provide a method mentioned type and the devices suitable for applying the method to develop in such a way that physically and chemically identical conditions of the melt in the different spinneret are guaranteed and an admixture of the additives so late as possible in the processing sequence of the melt. On Another object of the invention is the method and the device to design that the spinning system can be operated with maximum flexibility can.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Nebenstrom mit dem Additiv und der Hauptschmelzestrom innerhalb des Spinnbalkens vereint werden. Der besondere Vorteil hierbei liegt in der geringen Verweilzeit und der damit verbundenen geringen Temperaturbelastung der Additive. Hierdurch können auch temperaturkritische Additive verarbeitet werden. Zudem lassen sich dadurch kurze Wechselzeiten bei Additivveränderung verwirklichen.This object is achieved in that the bypass with the additive and the main melt stream inside the spinning beam be united. The particular advantage here is the short dwell time and the associated low temperature load of the Additives. As a result, temperature-critical additives can also be processed become. In addition, this allows short changeover times when changing additives realize.

Die Verfahrensvariante nach Anspruch 2 besitzt zudem den Vorteil, daß eine hohe Flexibilität der Spinnanlage erzielt wird. Obwohl alle Spinnstellen von einem Hauptextruder versorgt werden, kann jede einzelne Spinnstelle individuell hinsichtlich der Additivbeimengung betrieben werden. Die Zusammenführung des Nebenstroms und des Hauptschmelzestroms erfolgt hierbei vorteilhaft in dem Mischer der Spinnstelle. Dadurch wird eine hohe Verteilungsgleichmäßigkeit auch bei großen Viskositätsunterschieden zwischen Polymer und Zusätzen erreicht. Das Verfahren besitzt zudem den Vorteil, daß geringste Mengen des Additivs genau und reproduzierbar dem Hauptschmelzestrom zudosiert werden können.The process variant according to claim 2 also has the advantage that a high flexibility of the spinning system is achieved. Although all spinning positions of a main extruder, each individual spinning station can be individually be operated with regard to the admixture of additives. The merge of the secondary flow and the main melt flow takes place here advantageous in the mixer of the spinning station. This ensures high distribution uniformity even with large differences in viscosity between Polymer and additives achieved. The process also has the advantage that the smallest amounts of the additive are accurate and reproducible to the main melt stream can be added.

Eine besonders vorteilhafte Weiterbildung des Verfahrens sieht gemäß Anspruch 4 und 5 vor, daß der Nebenstrom innerhalb des Spinnbalkens erzeugt wird. Hierbei wird gleichzeitig die Wärmeenergie des Spinnbalkens zur Wärmebehandlung des Additivs genutzt. Somit ist diese Verfahrensvariante insbesondere für Additive, die in schmelzbarer Konsistenz vorliegen, geeignet.A particularly advantageous development of the method is according to claim 4 and 5 before that the sidestream generated within the spinning beam becomes. At the same time, the thermal energy of the spinning beam becomes Heat treatment of the additive used. This is the process variant especially suitable for additives that have a meltable consistency.

Die Verfahrensvariante nach Anspruch 6 ist insbesondere von Vorteil, wenn andere Polymer-Werkstoffe oder ein Masterbatch dem Hauptschmelzestrom beigemengt werden müssen. Die Aufschmelzenergie wird wiederum aus der Spinnbalkenbeheizung gewonnen.The method variant according to claim 6 is particularly advantageous if other polymer materials or a masterbatch to the main melt stream must be added. The melting energy is in turn from the Spin beam heating gained.

Zur Druckregelung ist es vorteilhaft, wenn der Nebenstrom bei Austritt aus dem Nebenextruder mittels einer Förderpumpe gefördert wird. Hierbei kann der Nebenextruder mit geringem Druckniveau betrieben werden, was sich günstig auf den Verschleiß auswirkt.For pressure control, it is advantageous if the bypass flows out when it emerges the secondary extruder is conveyed by means of a feed pump. This can the secondary extruder can be operated at a low pressure level, which is has a favorable effect on wear.

Besonders vorteilhaft ist es, wenn der Pumpenvordruck der Förderpumpe über ein radiales Schneckenspiel des Nebenextruders eingestellt wird. Damit läßt sich vorteilhaft der Füllgrad der Pumpe konstant halten. Das Schneckenspiel ist hierbei als Spalt zwischen dem Außendurchmesser der Schnecke des Nebenextruders und dem Innendurchmesser der Zylinderwandungen des Nebenextruders definiert. Bei dieser Ausführung hat die Förderpumpe immer genügend Schmelze zur Verfügung. It is particularly advantageous if the pump admission pressure of the feed pump is set via a radial screw play of the secondary extruder. In order to the filling level of the pump can advantageously be kept constant. The snail game is the gap between the outside diameter of the screw Secondary extruder and the inner diameter of the cylinder walls of the Secondary extruder defined. With this version the feed pump always has enough melt available.

Um eine gleichbleibende Auslastung des Nebenextruders zu erhalten, ist die Verfahrensvariante von Vorteil, bei welcher das Additiv oder Granulat dosiert zugeführt wird. In diesem Fall wird der Füllgrad der Pumpe durch den Durchsatz des Nebenextruders bestimmt.In order to maintain constant utilization of the secondary extruder, the Process variant of advantage in which the additive or granulate dosed is supplied. In this case, the filling level of the pump is checked determines the throughput of the secondary extruder.

Die erfindungsgemäße Vorrichtung zeichnet sich dadurch aus, daß die Einspeiseinrichtung zur Erzeugung des Additiv-Nebenstroms direkt durch eine Zuführleitung mit dem Spinnbalken verbunden ist. Dadurch werden sehr kurze Wege zwischen der Einspeiseeinrichtung und der Spinnstelle realisiert, so daß kurze Spülzeiten erreicht werden.The device according to the invention is characterized in that the Infeed device for generating the additive bypass flow directly through a Feed line is connected to the spinning beam. This will be very short distances between the feed device and the spinning station, so that short rinsing times are achieved.

Die Weiterbildung der Vorrichtung gemäß Anspruch 12 führt zu einer hohen Flexibilität der Spinnanlage. So bewirken Störungen in der Einspeiseinrichtung an einer einzelnen Spinnstelle keine größeren Unterbrechungen der Gesamtanlage.The development of the device according to claim 12 leads to a high Flexibility of the spinning system. This causes malfunctions in the feed device no major interruptions of the at a single spinning station Overall system.

Vorteilhaft mündet die Zuführleitung in den Mischer der Spinnstelle, so daß ein gleichmäßiges Vermengen von Nebenstrom und Hauptschmelzestrom gewährleistet ist.The feed line advantageously opens into the mixer of the spinning station, so that a uniform mixing of the secondary flow and the main melt flow is guaranteed.

Gemäß Anspruch 14 ist die Vorrichtung derart gestaltet, daß die Additive während der Zuführung gleichmäßig temperiert werden können.According to claim 14, the device is designed such that the additives can be tempered evenly during the feed.

Eine besonders vorteilhafte Weiterbildung der Vorrichtung gemäß den Ansprüchen 15 und 16 besitzt den Vorteil, daß die Beheizung des Nebenextruders durch den Spinnbalken gewährleistet ist. Diese Vorrichtung ist insbesondere dazu geeignet, um geringe Mengen eines zusätzlichen Polymer-Werkstoffes aufzuschmelzen und dem Hauptschmelzestrom zuzuführen. A particularly advantageous development of the device according to the claims 15 and 16 has the advantage that the heating of the secondary extruder is guaranteed by the spinning beam. This device is especially suitable for small amounts of an additional polymer material melt and feed the main melt stream.

Die Weiterbildung der Vorrichtung gemäß Anspruch 18 besitzt den Vorteil, daß der Nebenextruder einen geringeren Druck erzeugen muß, so daß damit die Extruderteile weniger schnell verschleissen.The development of the device according to claim 18 has the advantage that the secondary extruder must generate a lower pressure, so that wear the extruder parts less quickly.

Hierbei ist die Anordnung gemäß Anspruch 19 vorteilhaft, um mit einem Motor sowohl die Extruderschnecke als auch die Förderpumpe anzutreiben.Here, the arrangement according to claim 19 is advantageous to a Motor drive both the extruder screw and the feed pump.

Die Weiterbildung der Vorrichtung gemäß den Ansprüchen 22 und 23 bietet den Vorteil, daß jede Spinnstelle individuell betrieben werden kann. Selbst bei Ausfall einer Spinnstelle ergeben sich keine Ausfallzeiten der Spinnanlage.The development of the device according to claims 22 and 23 offers the advantage that each spinning station can be operated individually. Self if one spinning station fails, there is no downtime of the spinning system.

Weitere vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen definiert.Further advantageous developments of the invention are in the subclaims Are defined.

Im Nachfolgenden werden unter Hinweis auf die beigefügten Zeichnungen einige Ausführungsbeispiele einer Vorrichtung zur Anwendung des erfindungsgemäßen Verfahrens beschrieben.The following will refer to the attached drawings some embodiments of an apparatus for applying the invention Procedure described.

Es stellen dar:

Fig. 1
schematisch eine Spinnanlage zur Anwendung des erfindungsgemäßen Verfahrens;
Fig. 2
ein weiters Ausführungsbeispiel einer Spinnanlage;
Fig. 3
ein weiters Ausführungsbeispiel einer Spinnanlage;
Fig. 4
Ausführungsbeispiel einer Vorrichtung zur Zusammenführung des Hauptschmelzestroms und des Nebenstroms;
Fig. 5
schematisch einen erfindungsgemäßen Spinnbalken mit integriertem Nebenextruder;
Fig. 6
schematisch ein weiteres Ausführungsbeispiel eines Spinnbalkens;
Fig. 7
schematisch ein weiteres Ausführungsbeispiel eines Spinnbalkens.
They represent:
Fig. 1
schematically a spinning plant for using the method according to the invention;
Fig. 2
a further embodiment of a spinning system;
Fig. 3
a further embodiment of a spinning system;
Fig. 4
Embodiment of a device for merging the main melt stream and the secondary stream;
Fig. 5
schematically a spinning beam according to the invention with an integrated extruder;
Fig. 6
schematically another embodiment of a spinning beam;
Fig. 7
schematically another embodiment of a spinning beam.

In Fig. 1 ist schematisch eine Spinnanlage zum Spinnen thermoplastischer Fäden gezeigt. Das thermoplastische Material wird durch eine Fülleinrichtung 3 dem Extruder 1 aufgegeben. Der Extruder 1 ist durch einen Motor 4 angetrieben. In dem Extruder 1 wird das thermoplastische Material aufgeschmolzen. Hierzu dient zum einen die Verformungsarbeit (Scherenergie), die durch den Extruder 1 in das Material eingebracht wird. Zusätzlich ist eine Heizeinrichtung (hier nicht gezeigt) vorgesehen. Durch die Schmelzeleitung 7 gelangt die Schmelze zu einer Spinnstelle 24. Die Spinnstelle 24 wird hierbei durch einen Mischer 10, einer Verteilerpumpe 11 und mehrere Spinndüsen 9 gebildet, die in einem Spinnbalken 8 angeordnet sind und mit einer Wärmeträgerflüssigkeit oder Dampf beheizt werden. Die Schmelzeleitung 7 ist mit dem Mischer 10 verbunden. Ein Nebenextruder 2 ist mit seinem Extruderzylinder 13 teilweise im Spinnbalken 8 angeordnet. Der Nebenextruder wird über die Fülleinrichtung 6 beschickt. Der Antrieb des Nebenextruders 2 erfolgt durch den Motor 5. Innerhalb des Spinnbalkens 8 ist der Nebenextruder 2 über die Zuführleitung 14 mit dem Mischer 10 verbunden. Damit können die über die Fülleinrichtung 6 eingegebenen Additive als vom Nebenextruder erzeugter Nebenstrom durch die Zuführleitung zum Mischer 10 gelangen. Im Mischer 10 erfolgt eine Vermischung des aus der Schmelzeleitung 7 austretenden Hauptschmelzestroms und des Nebenstroms. Nach der Vermischung wird die Schmelze der Verteilerpumpe 11 zugeführt. Die Anordnung des Nebenextruders 2 ist hierbei derart gewählt, daß die zur Aufschmelzung der Additive benötigte Energie aus der Heizung des Spinnbalkens 8 entnommen wird. In der Verteilerpumpe 11 wird der Hauptschmelzestrom in mehrere Einzelschmelzeströme aufgeteilt und über die Schmelzeverteilerleitungen 15 zu den einzelnen Spinndüsen 9 geleitet. Die Spinndüsen 9 sind als Runddüsen mit bis zu 150.000 Düsenlöchern ausgeführt. Die Spinndüsen 9 spinnen die Polymerschmelze zu Filamenten. Das Filamentbündel 17 wird sodann durch den Blasschacht 16 geführt und mittels einem Luftstrom gleichmäßig gekühlt. Am Ende des Blasschachtes 16 wird das Filamentbündel mittels der Präparationseinrichtung 19 zu einem Faden 18 zusammengeführt. Der Faden 18 wird sodann in das Streckwerk 20 geführt. Das Streckwerk 20 weist zwei mehrfach umschlungene Galetten mit jeweils einer Überlaufrolle auf. Nach der Verstreckung wird der Faden 18 sodann in der Aufwicklung 21 zu einer Spule aufgewickelt.In Fig. 1 is a spinning system for spinning thermoplastic schematically Threads shown. The thermoplastic material is fed through a filling device 3 given to extruder 1. The extruder 1 is powered by a motor 4 driven. The thermoplastic material is melted in the extruder 1. The deformation work (shear energy), which is introduced into the material by the extruder 1. In addition there is one Heating device (not shown here) is provided. Through the melt line 7 the melt reaches a spinning station 24. The spinning station 24 becomes here by a mixer 10, a distributor pump 11 and several Spinning nozzles 9 are formed, which are arranged in a spinning beam 8 and with a heat transfer fluid or steam are heated. The melting line 7 is connected to the mixer 10. A secondary extruder 2 is included its extruder barrel 13 partially arranged in the spinning beam 8. The Auxiliary extruder is fed via the filling device 6. The drive of the Auxiliary extruder 2 is carried out by the motor 5. Inside the spinning beam 8 is the secondary extruder 2 via the feed line 14 with the mixer 10 connected. This allows the input via the filling device 6 Additives as a secondary flow generated by the secondary extruder through the feed line get to the mixer 10. Mixing takes place in the mixer 10 of the main melt stream emerging from the melt line 7 and the In addition to current. After mixing, the melt of the distributor pump 11 fed. The arrangement of the secondary extruder 2 is chosen here that the energy required to melt the additives from the Heating of the spinning beam 8 is removed. In the distributor pump 11 the main melt stream is divided into several individual melt streams and via the melt distribution lines 15 to the individual spinnerets 9 directed. The spinnerets 9 are round nozzles with up to 150,000 nozzle holes executed. The spinnerets 9 spin the polymer melt into filaments. The filament bundle 17 is then passed through the blow chute 16 guided and cooled evenly by means of an air stream. At the end of The chute 16 becomes the filament bundle by means of the preparation device 19 merged into a thread 18. The thread 18 is then in the Drafting unit 20 guided. The drafting system 20 has two wrapped multiple times Godets with one overflow roller each. After stretching the thread 18 is then wound up in the winder 21 to form a bobbin.

In Fig. 2 ist ein weiters Ausführungsbeispiel einer Spinnanlage gezeigt. Hierbei wird die durch den Extruder 1 aufgeschmolzene Polymerschmelze über die Schmelzeleitung 7 zu einem Filter 22 geführt. Im Filter 22 erfolgt eine Aufteilung des Hauptschmelzestroms auf die Einzelschmelzeleitungen 23.1, 23.2, 23.3 und 23.4. Jede der Einzelschmelzeleitungen leitet den Schmelzestrom zu jeweils einer Spinnstelle 24.1 bis 24.4. Die Spinnstellen 24.1 bis 24.4 sind in einem Spinnbalken 8 angeordnet. Der Spinnbalken 8 ist diphylbeheizt. Jede der Spinnstellen 24.1 bis 24.4 besteht jeweils aus einem Mischer 10, einer Verteilerpumpe 11 und den Spinndüsen 9. Jeder Spinnstelle 24.1 bis 24.4 ist jeweils eine Einspeiseeinrichtung zugeordnet. Die Einspeiseeinrichtung weist eine Einfülleinrichtung 26 auf, die mit einer Pumpe 25 verbunden ist. Die Pumpe 25 wiederum ist über die Zuführleitung 14 mit dem Mischer 10 der jeweiligen Spinnstelle verbunden. Bei dieser Anordnung ist die Einspeiseeinrichtung im wesentlichen außerhalb der Spinnstelle bzw. des Spinnbalkens angeordnet. Diese Anlage ist daher besonders geeignet für temperaturempfindliche Additive, die eine nur geringe Verweilzeit bei höherer Temperatur standhalten. Zudem erfordert diese Spinnanlage kurze Umstellzeiten, da keine Spülung der Verteilerleitungen zwischen dem Hauptextruder und der Spinnstelle erforderlich ist. Mit der in Fig. 2 gezeigten Einspeiseeinrichtung werden vorteilhaft flüssige oder pulverförmige Additive dem Hauptschmelzestrom beigemengt.2 shows another embodiment of a spinning system. Here, the polymer melt melted by the extruder 1 led to a filter 22 via the melt line 7. In the filter 22 a distribution of the main melt flow to the individual melt lines 23.1, 23.2, 23.3 and 23.4. Each of the individual smelting lines leads the Melt flow to a spinning station 24.1 to 24.4. The spinning positions 24.1 to 24.4 are arranged in a spinning beam 8. The spinning beam 8 is heated by diphyl. Each of the spinning positions 24.1 to 24.4 consists of a mixer 10, a distributor pump 11 and the spinnerets 9. Each Spinning stations 24.1 to 24.4 are each assigned an infeed device. The feed device has a filling device 26 which is connected to a Pump 25 is connected. The pump 25 is in turn via the feed line 14 connected to the mixer 10 of the respective spinning station. at this arrangement, the feed device is essentially outside the Spinning station or the spinning beam arranged. This facility is therefore Particularly suitable for temperature-sensitive additives that have a low level Withstand dwell time at higher temperature. It also requires this Spinning system short changeover times, since no flushing of the distribution lines between the main extruder and the spinning station is required. With the in 2 are advantageously liquid or powdery Additives added to the main melt stream.

In Fig. 3 ist ein weiteres Ausführungsbeispiel einer Spinnanlage gezeigt. Hierbei wird, wie bereits in Fig. 2 beschrieben, der Hauptschmelzestrom aufgeteilt und über die Einzelschmelzeleitungen 23 jeweils einer Spinnstelle 24 zugeführt. Zur Einspeisung der Additive ist hierbei ein Nebenextruder 2 vorgesehen, der die Additive in die Zuführleitung 14 einbringt. Von der Zuführleitung 14 zweigen jeweils zu einer Spinnstelle 24.1 und 24.2 die Parallelleitungen 27.1 und 27.2 ab, so daß der Nebenstrom sich aufteilt. Mit dieser Anordnung lassen sich mehrere Spinnstellen in einem Spinnbalken durch einen Nebenextruder versorgen.3 shows a further exemplary embodiment of a spinning system. Here, as already described in FIG. 2, the main melt flow divided and one spinning station via the individual melt lines 23 24 fed. In this case, a secondary extruder 2 is used to feed the additives provided that introduces the additives into the feed line 14. Of the Feed line 14 each branch to a spinning station 24.1 and 24.2 Parallel lines 27.1 and 27.2 from, so that the bypass is divided. With This arrangement allows several spinning positions in a spinning beam supply through a secondary extruder.

In den Figuren 1 bis 3 erfolgt die Zusammenführung des Hauptschmelzestroms und des Nebenstroms in dem Mischer 10. In Fig. 4 ist hierzu ein Ausführungsbeispiel angegeben, wobei ein dynamischer Mischer zur Vermengung der beiden Ströme verwendet wird. Der dynamische Mischer ist hierbei mit der Verteilerpumpe kombiniert wie aus der WO 94/19516 bekannt. Insoweit wird auf diese Druckschrift Bezug genommen. Der Hauptschmelzestrom wird über die Schmelzeleitung 7 in eine Einlaßkammer 35 des Mischers geführt. Der Nebenstrom gelangt über die Zuführleitung 14 ebenfalls in die Einlaßkammer 35. Die Einlaßkammer 35 liegt fluchtend mit einer Antriebswelle 28 vor einem Gehäusedeckel 36 der Verteilerpumpe. Die Pumpenwelle 28 ist an dem in die Einlaßkammer 35 hineinragenden Ende als Mischwelle 37 ausgebildet. Von der Mischkammer 35 gelangt die Schmelze über die Teilkanäle 38 zur Verteilerpumpe. Die Verteilerpumpe wird durch zwei in parallelen Ebenen angeordnete durch eine Zwischenplatte 34 getrennte Planetenradsätze gebildet. Die Radsätze sind durch die Gehäuseplatten 32 und 33 eingekammert. Hierbei wird das Sonnenrad 29 über die Antriebswelle 28 angetrieben. Das Sonnenrad 29 kämmt mit den Planetenrädern 30 und 31. Der Schmelzestrom wird somit zu den Auslaßkanälen 39 gefördert.In Figures 1 to 3, the main melt stream is combined and the secondary flow in the mixer 10. In FIG Embodiment specified, wherein a dynamic mixer for blending of the two streams is used. The dynamic mixer is combined with the distributor pump as in WO 94/19516 known. To this extent reference is made to this document. The main melt stream is via the melt line 7 in an inlet chamber 35th of the mixer. The bypass flows through the feed line 14 also in the inlet chamber 35. The inlet chamber 35 is flush with a drive shaft 28 in front of a housing cover 36 of the distributor pump. The Pump shaft 28 is at the end projecting into the inlet chamber 35 formed as a mixing shaft 37. The passes from the mixing chamber 35 Melt via the subchannels 38 to the distributor pump. The distributor pump is arranged by two in parallel planes by an intermediate plate 34 separate planetary gear sets are formed. The wheelsets are through the housing plates 32 and 33 chambered. Here, the sun gear 29 on the Drive shaft 28 driven. The sun gear 29 meshes with the planet gears 30 and 31. The melt flow thus becomes the outlet channels 39 promoted.

In Fig. 5 ist ein Ausführungsbeispiel eines Spinnbalkens gezeigt, wie er in der Spinnanlage aus Fig. 1 oder Fig. 3 einsetzbar ist. Der Spinnbalken weist hierbei eine Spinnstelle mit den zwei Spinndüsen 9 auf. Die Spinndüsen 9 sind durch die Schmelzeverteilerleitungen 15 mit der Verteilerpumpe 11 verbunden. Die Verteilerpumpe 11 weist hierbei ein angetriebenes Sonnenrad 29 sowie die Planetenräder 30 und 31 auf. Konzentrisch zur Antriebswelle 28 der Pumpe 11 ist die Einlaßkammer 35 des Mischers 10 gebildet. An der Antriebswelle 28 sind die Mischeinrichtungen 43 innerhalb der Einlaßkammer 35 angeordnet. Die Antriebswelle 28 endet außerhalb des Spinnbalkens und ist mit dem Motor 42 gekoppelt. Die Einlaßkammer 35 ist mit der Schmelzeleitung 7 verbunden. Zwischen der Verteilerpumpe 11 und dem Mischer 10 sind zwei Schmelzekanäle 44.1 und 44.2 ausgebildet. In die Einlaßkammer 35 mündet weiterhin noch die Zuführleitung 14.2. Die Zuführleitung 14.2 verbindet den Mischer 10 mit einer Förderpumpe 45. Die Förderpumpe ist innerhalb der Gehäuseplatte 33 angeordnet. Fluchtend zum Pumpenrad 41 ist eine Extruderschnecke 40 angeordnet. Die Extruderschnecke 40 und das Pumpenrad 41 sind miteinander verbunden. Die Extruderschnecke 40 ist in dem Extruderzylinder 13 des Nebenextruders 2 eingelassen. Der Extruderzylinder 13 ist mit der Fülleinrichtung 6 verbunden. Die Fülleinrichtung 6 weist eine Dosiereinrichtung 54 auf. Die Extruderschnecke endet außerhalb des Spinnbalkens und ist mit dem Motor 5 gekoppelt. Der Spinnbalken 8 ist beispielsweise diphylbeheizt.In Fig. 5 an embodiment of a spinning beam is shown, as in of the spinning system from FIG. 1 or FIG. 3 can be used. The spinning beam has a spinning station with the two spinnerets 9. The spinnerets 9 are through the melt manifolds 15 with the manifold pump 11 connected. The distributor pump 11 has a driven sun gear 29 and the planet gears 30 and 31. Concentric to the drive shaft 28 of the pump 11 is the inlet chamber 35 of the mixer 10 educated. The mixing devices 43 are inside the drive shaft 28 the inlet chamber 35 is arranged. The drive shaft 28 ends outside of Spin beam and is coupled to the motor 42. The inlet chamber 35 is connected to the melt line 7. Between the distributor pump 11 and the mixer 10 has two melt channels 44.1 and 44.2. In the inlet chamber 35 still opens the supply line 14.2. The Feed line 14.2 connects the mixer 10 to a feed pump 45. The feed pump is arranged within the housing plate 33. flush an extruder screw 40 is arranged to the pump wheel 41. The extruder screw 40 and the impeller 41 are connected to each other. The extruder screw 40 is in the extruder barrel 13 of the secondary extruder 2 admitted. The extruder cylinder 13 is connected to the filling device 6. The filling device 6 has a metering device 54. The extruder screw ends outside the spinning beam and is with the motor 5 coupled. The spinning beam 8 is heated, for example, diphyl.

Bei dieser Anordnung gelangt der Hauptschmelzestrom durch die Zuführleitung 7 in die Einlaßkammer 35 des Mischers 11. Gleichzeitig wird ein über die Fülleinrichtung 6 dosiert beigemengtes Additiv durch den Nebenextruder 2 aufgeschmolzen und homogenisiert. Sodann gelangt dieser erzeugte Nebenstrom über den Zuführkanal 14.1 zur Förderpumpe 45. Durch die Dosierung des Additivs wird der Füllgrad der Förderpumpe 45 gesteuert bzw. konstant gehalten. Die Förderpumpe fördert den Nebenstrom sodann über die Zuführleitung 14.2 zur Einlaßkammer 35 des Mischers 10. Im Mischer 10 erfolgt die Vermengung des Hauptschmelzestroms mit dem Nebenstrom. Anschließend wird der vermengte Schmelzestrom über die Schmelzekanäle 44.1 und 44.2 zu der Verteilerpumpe geleitet. Die Verteilerpumpe wirkt als doppelte Einzelpumpe, die jeweils mit einer der beiden Spinndüsen 9 durch die Schmelzeverteilerleitung 15 verbunden ist.With this arrangement, the main melt stream passes through the feed line 7 in the inlet chamber 35 of the mixer 11. At the same time Additive metered in via the filling device 6 through the secondary extruder 2 melted and homogenized. Then this generated one arrives Secondary flow via the feed channel 14.1 to the feed pump 45 Dosing of the additive, the degree of filling of the feed pump 45 is controlled or kept constant. The feed pump then conveys the secondary flow via the feed line 14.2 to the inlet chamber 35 of the mixer 10. Im Mixer 10 is the mixing of the main melt stream with the In addition to electricity. Then the mixed melt flow over the Melt channels 44.1 and 44.2 passed to the distributor pump. The distributor pump acts as a double single pump, each with one of the two Spinnerets 9 is connected by the melt distribution line 15.

Um den Füllgrad der Förderpumpe 45 konstant zu halten, ist es auch möglich, die Plastifizierschnecke des Nebenextruders so auszuführen, daß sich der Pumpenvordruck über das Schneckenspiel bzw. über einen konischen Spalt im Nebenextruder selbst reguliert. Damit hat die Pumpe automatisch immer genügend Schmelze.In order to keep the filling level of the feed pump 45 constant, it is also possible to carry out the plasticizing screw of the secondary extruder so that the pump admission pressure via the screw play or via a conical Self-regulating gap in the auxiliary extruder. So that the pump always enough melt automatically.

Eine weitere Möglichkeit, den Füllgrad der Förderpumpe zu beeinflussen, besteht darin, den Pumpenvordruck als Signal für die Dosiereinstellung in der Fülleinrichtung zu verwenden. Dabei weist der Nebenextruder einen variablen Füllgrad auf.Another way to influence the filling level of the feed pump, consists of the pump pre-pressure as a signal for the metering setting in the filling device to use. The secondary extruder has one variable fill level.

In Fig. 6 ist ein modifizierter Spinnbalken im Vergleich zu dem Spinnbalken aus Fig. 5 gezeigt. Hierbei ist die Einspeiseinrichtung durch eine Pumpe 25 gebildet, die über die Fülleinrichtung 6 mit einem Einspeisekanal 48 verbunden ist. Der Einspeisekanal 48 und die Pumpe 25 sind innerhalb des Spinnbalkens 8 angeordnet. Die Pumpe 25 ist als Zahnradpumpe mit den Pumpenrädern 41 und 49 ausgebildet. Das Pumpenrad 41 wird über die Antriebswelle 50 und dem Motor 5 angetrieben. Der damit erzeugte Nebenstrom wird über die Zuführleitung 14 dem Mischer 10 zugeführt.6 is a modified spinning beam compared to the spinning beam shown in Fig. 5. Here, the feed device is by a pump 25 formed, which is connected to a feed channel 48 via the filling device 6 is. The feed channel 48 and the pump 25 are within the Spinning beam 8 arranged. The pump 25 is a gear pump with the Pump wheels 41 and 49 formed. The impeller 41 is on the Drive shaft 50 and the motor 5 driven. The sidestream generated with it is fed to the mixer 10 via the feed line 14.

Hinsichtlich der Vermengung des Hauptschmelzestroms mit dem Nebenstrom sowie der baulichen Anordnung der Spinnstelle wird auf die Beschreibung zu Fig. 5 Bezug genommen.Regarding the mixing of the main melt flow with the secondary flow as well as the structural arrangement of the spinning station is based on the description 5 referenced.

In Fig. 7 ist ein weiteres Ausführungsbeispiel eines Spinnbalkens gezeigt, wie beispielsweise in der Spinnanlage aus Fig. 1 oder Fig. 3 einsetzbar. Da der Spinnbalken aus Fig. 7 eine Modifikation des Spinnbalkens aus Fig. 5 darstellt, wird insoweit auf die Beschreibung zu Fig. 5 Bezug genommen, und an dieser Stelle werden nur die Abweichungen beschrieben. Der Mischer 10 ist auf der vom Antrieb abgewandten Seite der Verteilerpumpe 11 angeordnet. Die Antriebswelle 28, die von dem außerhalb des Spinnbalkens 8 angeordneten Motor 42 angetrieben wird, ist derart verlängert, daß das gegenüberliegenden Ende der Pumpenantriebswelle als Mischerwelle 37 ausgeführt ist und in die Mischkammer 35 hineinragt. In die Mischerkammer 35 mündet die Schmelzeleitung 7. Die Zuführleitung 14.2 verbindet die Förderpumpe 45 mit der Schmelzeleitung 7, so daß der Nebenstrom und der Hauptstrom gemeinsam durch eine Eintrittsöffnung in die Mischerkammer 35 eintreten. Die Förderpumpe 45 ist über die Zuführleitung 14.1 mit dem Nebenextruder 2 verbunden. Die Förderpumpe sowie der Nebenextruder sind derart angeordnet, daß die Antriebswelle 50 der Förderpumpe 45 und die Welle 52 der Extruderschnecke 40 gemeinsam mit einem Getriebe 51 angetrieben werden. Das Getriebe 51 ist über eine Antriebswelle 53 mit dem Motor 5 verbunden.7 shows a further exemplary embodiment of a spinning beam, as can be used, for example, in the spinning system from FIG. 1 or FIG. 3. There 7 shows a modification of the spinning beam from FIG. 5 to this extent reference is made to the description of FIG. 5, and only the deviations are described here. The mixer 10 is on the side of the distributor pump 11 facing away from the drive arranged. The drive shaft 28 by the outside of the spinning beam 8 arranged motor 42 is driven so that the opposite end of the pump drive shaft as a mixer shaft 37 is executed and protrudes into the mixing chamber 35. In the mixer chamber 35 opens the melt line 7. The feed line 14.2 connects the Feed pump 45 with the melt line 7, so that the bypass and Main flow together through an inlet opening in the mixer chamber 35 enter. The feed pump 45 is connected via the feed line 14.1 to the Auxiliary extruder 2 connected. The feed pump and the auxiliary extruder are arranged such that the drive shaft 50 of the feed pump 45 and the Shaft 52 of the extruder screw 40 together with a gear 51 are driven. The gear 51 is connected via a drive shaft 53 connected to the engine 5.

Grundsätzlich ist die Einspeiseeinrichtung in dem Ausführungsbeispiel nach Fig. 7 auch mit der Mischeranordnung aus dem Ausführungsbeispiel nach Fig. 5 kombinierbar. Basically, the feed device is according to the embodiment Fig. 7 also with the mixer arrangement from the embodiment Fig. 5 can be combined.

In den Fällen, bei denen die Einspeiseeinrichtung im Spinnbalken integriert ist, wird die erforderliche Wärmeenergie z.B. zum Plastifizieren eines Farb-Masterbatch aus der Beheizung des Spinnbalkens gewonnen. Es ist jedoch ebenfalls möglich, eine Zusatzheizung, insbesondere Heizbänder, für den Nebenextruder einzusetzen. In cases where the feed device is integrated in the spinning beam the required thermal energy is e.g. for plasticizing a color masterbatch gained from heating the spinning beam. However, it is also possible, an additional heater, especially heating tapes, for the Use extruder.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

11
Extruderextruder
22
Nebenextrudersecondary extruder
33
Fülleinrichtungfilling
44
Motorengine
55
Motorengine
66
Fülleinrichtungfilling
77
Schmelzeleitungmelt line
88th
Spinnbalkenspinning beam
99
Spinndüsespinneret
1010
Mischermixer
1111
Verteilerpumpedistributor pump
1212
Extruderzylinderextruder barrel
1313
Extruderzylinderextruder barrel
1414
Zuführleitungfeed
1515
SchmelzeverteilerleitungMelt distribution line
1616
Blasschachtblowing shaft
1717
Filamentbündelfilament bundles
1818
Fadenthread
1919
Präparationseinrichtungpreparation device
2020
Streckwerkdrafting system
2121
Aufwicklungrewind
2222
Filterfilter
2323
EinzelschmelzeleitungenSingle melt lines
2424
Spinnstellespinning unit
2525
Pumpepump
2626
Einfülleinrichtungfilling device
2727
Parallelleitungparallel line
2828
Antriebswelle drive shaft
2929
Sonnenradsun
3030
Planetenradplanet
3131
Planetenradplanet
3232
Gehäuseplattehousing plate
3333
Gehäuseplattehousing plate
3434
Zwischenplatteintermediate plate
3535
Einlaßkammer/MischkammerInlet chamber / mixing chamber
3636
Gehäusedeckelhousing cover
3737
Mischerwellemixer shaft
3838
Teilkanälesubchannels
3939
Auslaßkanaloutlet channel
4040
Extruderschneckeextruder screw
4141
Pumpenradimpeller
4242
Motorengine
4343
Mischeinrichtungmixing device
4444
Schmelzekanalmelt channel
4545
Förderpumpefeed pump
4646
Heizkastenheating box
4747
Einspeiseeinrichtungfeed device
4848
Einspeisekanalfeed channel
4949
Pumpenradimpeller
5050
Antriebswelledrive shaft
5151
Getriebetransmission
5252
Wellewave
5353
Antriebswelledrive shaft
5454
Dosiereinrichtungmetering

Claims (26)

  1. Method for spinning thermoplastic filaments, in which a main melt stream is produced by an extruder and is fed to a spinning beam with a spinning station, wherein the spinning station has a mixer, a distributor pump and a plurality of spinnerets, the melt being tempered inside the spinning beam by means of a heating medium, and in which a auxiliary stream is produced by a feed mechanism (pump, extruder) for the purpose of mixing in additives and is fed to the main melt stream, the main melt stream being divided by the distributor pump, characterised in that the auxiliary stream and the main melt stream are combined inside the spinning beam prior to division of the main melt stream.
  2. Method according to claim 1, characterised in that the main melt stream and the auxiliary stream are combined in the spinning station, in particular in the mixer.
  3. Method according to claim 2, characterised in that the mixer can be designed as a static or dynamic mixer.
  4. Method according to any one of claims 1 to 3, characterised in that the auxiliary stream is produced inside the spinning beam.
  5. Method according to the preamble of claim 1, characterised in that the auxiliary stream is produced inside the spinning beam.
  6. Method according to claim 4 or 5, characterised in that the auxiliary stream is produced by a auxiliary extruder, the auxiliary extruder being heated by the heating medium of the spinning beam to melt an additive or granules.
  7. Method according to any one of claims 4 to 6, characterised in that the auxiliary stream is conveyed by means of a feed pump connected downstream from the auxiliary extruder.
  8. Method according to claim 7, characterised in that the auxiliary extruder and the feed pump are mutually driven by a motor.
  9. Method according to claim 7 or 8, characterised in that a pump admission pressure of the feed pump is determined by a radial screw play of the auxiliary extruder.
  10. Method according to claim 7 or 8, characterised in that a filling device allowing a metering of the additive or granules and for feeding the additive or granules to the auxiliary extruder is provided.
  11. Method according to any one of the preceding claims, characterised in that the main melt stream for supplying a plurality of spinning stations in the spinning beam is divided into a plurality of single melt streams and in that the auxiliary stream is respectively combined with one of the single melt streams.
  12. Method according to claim 11, characterised in that the auxiliary stream for supplying a plurality of spinning stations in the spinning beam is divided into a plurality of partial streams and in that one of the partial streams is respectively combined with one of the single melt streams.
  13. Device for use of the method according to claim 1 to 12, with an extruder (1) for producing a main melt stream, with a melt line (7) in which the main melt stream is guided to a heated spinning beam (8), with a spinning station (24) arranged in the spinning beam (8), the spinning station (24) having a mixer (10), a distributor pump (11) and a plurality of spinnerets (9), the distributor pump (11) dividing the main melt stream and feeding it to the associated spinnerets (9), and with a feed mechanism (2, 25) (extruder, pump) for producing an auxiliary stream fed to the main melt stream, characterised in that the feed mechanism (2, 25) is connected to the spinning beam (8) by a feed line (14), so the auxiliary stream and the main stream are brought together inside the spinning beam (8) prior to division of the main melt stream.
  14. Device according to claim 13, characterised in that the feed line (14) opens out in the spinning station (24), in particular into the mixer (10).
  15. Device according to claim 14, characterised in that the mixer (10) is designed as a static or dynamic mixer.
  16. Device according to any one of claims 13 to 15, characterised in that the feed line (15) extends inside the spinning beam (8).
  17. Device according to any one of claims 13 to 16, characterised in that the feed mechanism is designed as an auxiliary extruder (2) and in that at least a partial length of the auxiliary extruder (2) is arranged inside the spinning beam (8).
  18. Device according to the preamble of claim 13, characterised in that the feed mechanism is designed as an auxiliary extruder (2) and in that at least a partial length of the auxiliary extruder (2) is arranged inside the spinning beam (8).
  19. Device according to claim 17 or 18, characterised in that the auxiliary extruder (2) can be heated by the heated spinning beam (8) to melt an additive/granules.
  20. Device according to any one claims 17 to 19, characterised in that a feed pump (45) is arranged between the auxiliary extruder (2) and the mixer (10) in the feed line (14).
  21. Device according to claim 20, characterised in that the feed pump (45) and the auxiliary extruder (2) are arranged coaxially in such a way that the extruder screw (40) and the feed pump (45) can be driven by one drive (5).
  22. Device according to claim 21, characterised in that the feed pump (45) is designed as a gear pump and in that a pump wheel (41) is coupled to the extruder screw (40).
  23. Device according to any one of claims 18 to 22, characterised in that the auxiliary extruder (2) is connected to a filling mechanism (6) for feeding an additive/granules and in that the filling mechanism (6) has a metering mechanism (54).
  24. Device according to any one of claims 20 to 23, characterised in that the feed pump (45) is designed as a multiple pump and in that the feed line (14) downstream from the multiple pump for supplying a plurality of spinning stations (24.1, 24.2) in the spinning beam (8) is divided into a plurality of parallel lines (27.1, 27.2).
  25. Device according to any one of claims 13 to 24, characterised in that the melt line (7) branches into a plurality of single melt lines (23.1 to 23.4) for supplying a plurality of spinning stations (24.1 to 24.4), so each single melt line (23.1 to 23.4) is connected to a spinning station (24.1 to 24.2).
  26. Device according to any one of claims 13 to 24, characterised in that the feed line (14) branches into a plurality of parallel lines (27.1 to 27.2) for supplying a plurality of spinning stations (24.1 to 24.2), so each parallel line (27.1, 27.2) is connected to a spinning station (24.1, 24.2).
EP97118082A 1996-10-21 1997-10-17 Method and apparatus for spinning thermoplastic filaments Expired - Lifetime EP0837161B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19643351 1996-10-21
DE19643351 1996-10-21

Publications (3)

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EP0837161A2 EP0837161A2 (en) 1998-04-22
EP0837161A3 EP0837161A3 (en) 1998-12-23
EP0837161B1 true EP0837161B1 (en) 2002-09-04

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Application Number Title Priority Date Filing Date
EP97118082A Expired - Lifetime EP0837161B1 (en) 1996-10-21 1997-10-17 Method and apparatus for spinning thermoplastic filaments

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US (1) US5902531A (en)
EP (1) EP0837161B1 (en)
DE (1) DE59708113D1 (en)

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DE102008038328A1 (en) 2007-09-27 2009-04-02 Oerlikon Textile Gmbh & Co. Kg Melt spinning of monochrome filaments for producing synthetic thread e.g. carpet yarn, comprises dyeing a polymer melt of a polymer material by addition of colorants, and extruding the filaments from the polymer melt
DE102009038661A1 (en) 2008-09-05 2010-04-29 Oerlikon Textile Gmbh & Co. Kg Melt spinning device for producing synthetic polymer fibers, has melt source e.g. extruder, delivering main polymer, and additive feeding station for feeding additive e.g. fluid, to polymer aggregate

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US6824733B2 (en) * 2002-06-20 2004-11-30 3M Innovative Properties Company Meltblowing apparatus employing planetary gear metering pump
DE10233468A1 (en) * 2002-07-24 2004-02-12 Barmag Ag Device and method for feeding a liquid paint into a polymer melt
DE10235936A1 (en) * 2002-08-06 2004-02-19 Barmag Ag Synthetic textile spinning and spool winding assembly has line of spinning jets and a draw-down galette transverse to the line of winding stations
WO2004067816A1 (en) * 2003-01-29 2004-08-12 Saurer Gmbh & Co. Kg Device and method for spinning dyed fibers
CN102134756B (en) * 2011-03-23 2012-11-21 江苏华西村股份有限公司 Method for controlling homogeneity of fluorescent-whitened polyester staple fiber product
CN103556243A (en) * 2013-11-14 2014-02-05 苏州千色纺化纤有限公司 Processing device used for producing weaving line made of polyester fibre
CN103556242A (en) * 2013-11-14 2014-02-05 苏州千色纺化纤有限公司 Processing device for producing textile thread made of polyester fiber
CN103603062A (en) * 2013-11-14 2014-02-26 苏州千色纺化纤有限公司 Colored textile yarn processing unit
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CN107201555B (en) * 2017-07-12 2022-09-06 苏州龙杰特种纤维股份有限公司 Master batch adding system and method for preparing colored fibers
EP3666939B1 (en) 2018-12-12 2024-10-30 Aladdin Manufacturing Corporation A multifilament bundle of melt spun polymer filaments
CN110629298B (en) * 2019-11-06 2024-06-11 韶关学院 Melt electrostatic spinning device and method thereof
US12291799B2 (en) 2020-06-16 2025-05-06 Aladdin Manufacturing Corporation Systems and methods for producing a bundle of filaments and/or a yarn
EP4164973A4 (en) 2020-06-16 2025-07-09 Aladdin Mfg Corp Systems and methods for producing a filament bundle and/or a yarn bundle
EP4165240B1 (en) 2020-06-16 2025-10-01 Aladdin Manufacturing Corporation Systems and methods to provide color enhanced yarns
CN114427123B (en) * 2022-01-27 2023-04-25 九江中科鑫星新材料有限公司 Thermal insulation mechanism for production of ultra-high molecular weight polyethylene fibers
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DE102009038661A1 (en) 2008-09-05 2010-04-29 Oerlikon Textile Gmbh & Co. Kg Melt spinning device for producing synthetic polymer fibers, has melt source e.g. extruder, delivering main polymer, and additive feeding station for feeding additive e.g. fluid, to polymer aggregate

Also Published As

Publication number Publication date
EP0837161A2 (en) 1998-04-22
EP0837161A3 (en) 1998-12-23
US5902531A (en) 1999-05-11
DE59708113D1 (en) 2002-10-10

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