EP3433400A1 - Device for melt-spinning, drawing, and winding a thread group - Google Patents

Device for melt-spinning, drawing, and winding a thread group

Info

Publication number
EP3433400A1
EP3433400A1 EP17710868.5A EP17710868A EP3433400A1 EP 3433400 A1 EP3433400 A1 EP 3433400A1 EP 17710868 A EP17710868 A EP 17710868A EP 3433400 A1 EP3433400 A1 EP 3433400A1
Authority
EP
European Patent Office
Prior art keywords
spinning
rollers
group
winding
thread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17710868.5A
Other languages
German (de)
French (fr)
Other versions
EP3433400B1 (en
Inventor
Martin Fischer
Jörg Hegenbarth
Marc-André HERRNDORF
Linda WOLKOWSKI
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 EP3433400A1 publication Critical patent/EP3433400A1/en
Application granted granted Critical
Publication of EP3433400B1 publication Critical patent/EP3433400B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D13/00Complete machines for producing artificial threads
    • D01D13/02Elements of machines in combination
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D11/00Other features of manufacture
    • D01D11/04Fixed guides
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/08Melt spinning methods
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D7/00Collecting the newly-spun products

Definitions

  • the invention relates to a device for melt spinning, stripping and winding a yarn sheet according to the preamble of claim 1.
  • a generic device for melt spinning, stripping and winding a yarn sheet is known from WO 2004/015173.
  • synthetic threads it is generally known that within a spinning position a group of yarns of several threads are spun parallel, side by side, stretched and wound up into coils.
  • the device known from WO 2004/015173 is used in particular.
  • the generic device has a spin device which has a row of several spinnerets. Below the spinning device, a godet device with at least two drivable godets and a winding device with a plurality of winding points are arranged.
  • the godet device is assigned directly to the winding device, wherein the godets are aligned substantially transversely to the winding spindles of the winding device.
  • the winding spindles extend a plurality of winding points, whose rows are held substantially orthogonal to the row of spinnerets of the spinning device.
  • the known device has a thread deflection device between the spinning device and the godet device, which is formed from two groups of yarn guides.
  • a first group of yarn guides is associated with the spinning device to guide the yarns at a spinning distance.
  • a second group of yarn guides is associated with the godet means to gather the yarn sheet so that the yarns are feasible with a much smaller yarn spacing on the circumference of the godets.
  • the thread guides of the two groups of yarn guides are formed by freely rotatable rollers.
  • Advantageous developments of the invention are defined by the features and feature combinations of the subclaims.
  • the invention is characterized in that the threads of the yarn sheet in the transition from the spinning device to the godet device can be guided substantially without friction. It has surprisingly been found that the degree of wrap on the rollers, which is substantially proportional to the deflection angle, causes no change in the physical properties. Thus, the threads can be guided without slippage substantially without friction on the circumference of the rollers.
  • the yarn sheet can be performed together with the smallest possible thread spacing on the circumference of the godet godet
  • the development of the invention is preferably carried out in which the rollers of the second group of yarn guides with an offset one above the other and / or one below the other. This makes it possible to realize thread spacings between the threads which are smaller than the diameter of a roll. Common thread distances for guiding the threads on a godet are in the range of 4 - 8 mm.
  • the staggered arrangement of the rollers one above the other or with each other even smaller pitches between the threads of the yarn sheet can be realized.
  • the horizontal offset between the rollers of the second group of yarn guides is preferably equal to the thread spacing, so that the threads are feasible immediately after the expiration of the rollers on the circumference of the godets.
  • the outer threads of the spinning device can be removed from the spinning device under the same conditions and fed to the godet device.
  • the development of the invention in which the spinning nozzles of the spinning device are held by two juxtaposed spinning beams and in which the rollers of the second group of yarn guides are held in the central region between the spinning beams, is particularly suitable for simultaneously pulling off a plurality of yarn sets of adjacent spinning stations and to wind up coils.
  • This embodiment of the invention is particularly suitable for modernizing existing melt spinning equipment. This allows existing spinning units to be combined with new take-up systems.
  • the rollers are held the second groups of yarn guides on one or two movable carriers, which in each case between a contact position of the rollers and an operating position of the roller len are feasible.
  • the rollers can be held such that a manual thread guide by means of a suction gun for applying the threads is possible regardless of the offset.
  • the carrier can preferably hold at one end of a pivot axis and lead in an angular range up to a horizontal. This provides the maximum distance between the rollers to apply the threads to the rollers.
  • the godet device and the winding device are arranged in a middle region below the spinning device and that the godet device is held at a front end of the winding device.
  • the yarn sheet can be out of a single horizontal plane out of the individual winding points.
  • the development of the invention has proven particularly useful in which the godet has a Fadenabsaug Rhein, which is arranged downstream of the rollers of the second group of yarn guides in the yarn path.
  • the severing of the yarn sheet is carried out at a fault in an area below the Fadenumlenk appealing.
  • the threads are guided even with a disturbance on the circumference of the rollers.
  • a subsequent reapplication is required only in the godet device and the winding device. Thus, short interruption times can be realized.
  • Fig. 1 shows schematically a front view of a first embodiment of the device according to the invention
  • FIG. 2 is a schematic side view of the embodiment of FIG. 1.
  • Fig. 3 shows schematically a front view of another embodiment of the device according to the invention
  • Fig. 4 shows schematically a front view of another embodiment of the device according to the invention
  • a first embodiment of the device according to the invention for melt-spinning, stripping and winding up a group of threads is shown in several views.
  • Fig. 1 shows the embodiment in a front view and in Fig. 2, the embodiment is shown in a side view. Unless an explicit reference is made to one of the figures, the following description applies to both figures.
  • the exemplary embodiment has a spinning device 1, a thread deflection device 12, a godet device 16 and a winding device 21, which are arranged one below the other.
  • the spinning device 1 has a plurality of spinnerets 3 for spinning multifilament threads, which are held in a row arrangement at a distance from one another on the underside of a spinneret 2.
  • the spinning beam 2 is designed to heat the spinnerets 3 heated.
  • a melt distribution system 6 is formed, which is connected to a spinning pump 4.
  • the spin pump 4 is designed as a multiple pump to produce a partial melt stream to each spinneret 3.
  • the spinning pump 4 is driven by a pump drive 4.1.
  • the spinning pump 4 is connected to a melt source, not shown here, for example, an extruder or a discharge pump.
  • a cooling device 7 which forms a cooling shaft 9 below the spinning beam 2 for guiding and cooling the freshly extruded filament strands of the threads.
  • the cooling shaft 9 is assigned a one-sided blow chamber 10, which is connected to the cooling shaft 9 via a blow-off wall 11.
  • the illustrated cooling device is exemplary with a transverse cooling air flow.
  • such cooling devices can also have devices which blow a cooling air flow generated radially from inside to outside or radially from outside to inside onto the filaments.
  • the freshly extruded filaments form a bundle of threads 30, which is withdrawn from the spinning device 1 by the fork device 16.
  • the godet device 16 has two driven godets 18. 1 and 18. 2, which project on a godet carrier 17 in cantilever fashion her godet coats are held.
  • the godets 18.1 and 18.2 associated drives are held on the back of the godet carrier 17.
  • a suction device 19 In a first godet 18.1 upstream inlet area a suction device 19 is arranged.
  • the suction device 19 has at least one movable yarn guide, a knife and a proboscis, which are not shown here. Such suction devices 19 are well known and therefore not further described at this point.
  • a swirling device 20 is held on the godet carrier 17, through which the individual threads of the yarn sheet 30 are swirled.
  • the godet carrier 17 is arranged directly on an end face of the winding device 21, so that the threads running from the godet 18.2 are distributed out of a substantially horizontal distribution plane onto a plurality of winding points 26.
  • the godet carrier 17 is supported here directly on a machine frame 22 of the winding device 21.
  • the winding points 26 formed within the winding device 21 are of identical design and extend along a winding spindle 23.1.
  • the row of winding stations 26 and thus the winding spindles are arranged essentially orthogonal to the row of spinnerets 3 of the spinning device 1.
  • the winding spindle 23.1 is arranged on a rotatably mounted winding turret 28, wherein the winding turret 28 has an offset by 180 ° arranged two- te winding spindle 23.2 carries.
  • the winding spindles 23.1 and 23.2 can alternately lead into a winding area and a change area.
  • the winding spindles 23.1 and 23.2 cooperate with the respective winding locations 26 in order to form a spool 29 in each of the winding locations 26 on the circumference of the winding spindle 23.1 or 23.2.
  • the winding stations 26 are constructed identically and each have a deflection roller 24 and a traversing unit 25. By the deflection rollers 24 is a separation of the threads, which are then reciprocated by means of the traversing unit 25 and forth. For depositing the threads on the circumference of the coil 29, a pressure roller 27 is provided, which extends over all winding positions 26.
  • the Fadenumlenk listening 12 has in this embodiment, a first group of yarn guides 13, which are formed by each freely rotatable rollers 13.1.
  • the rollers 13.1 of the first group of yarn guides are associated with the spinnerets 3 in order to merge the filament strands of the respective yarns in a so-called convergence point.
  • the rollers 13.1 are held at a spinning distance from one another in a row-like arrangement, respectively, on a roller carrier 31.
  • the rollers 13.1 can also be held on a single roller carrier.
  • a second group of thread guides 14 which contain a plurality of rollers 14.1.
  • the rollers 14.1 of the second group of yarn guides 14 are arranged one above the other with an offset and with each other such that a um- swept V-shaped series arrangement results.
  • the rollers 14.1 are held on a V-shaped support 15, which is arranged in the middle region of the row of spinnerets 3.
  • the second group of yarn guides 14 is associated with the godet 16 in such a way that the threads without guide between the rollers 14.1 and the first godets 18.1 are feasible.
  • the horizontal offset formed between adjacent rollers 14.1 of the second group of yarn guides 14 is equal to a yarn spacing of adjacent yarns.
  • the threads of the yarn sheet 30 can thus be fed directly to the godets 18.1 and 18.2 of the godet 16 regardless of the diameter of the rollers 14.1 with relatively small thread spacing.
  • the group of threads is preferably guided with a thread spacing between the threads in the range of 4 mm to 8 mm.
  • the rollers 14.1 of the second group of yarn guides 14 are aligned with their axes orthogonal thereto to the axes of the godets 18.1 and 18.2.
  • the number of selected spinnerets 3 in the spinning device 1 and the number of winding points 26 in the winding device 21 is exemplary. So here are the facilities designed to produce six threads. In principle, such spinning devices can also produce twice as many threads at the same time.
  • the row-shaped arrangement of the spinnerets 3 and the row-shaped arrangement of the winding points 26 remains unchanged, so that the winding points 26 extends substantially orthogonal to the row of spinnerets 3.
  • the devices are shown in function. In this case, a multiplicity of filament strands are continuously extruded from a polymer melt via the spinnerets 3 per spinneret.
  • each of the spinneret 3 is fed a partial melt stream of the polymer melt under pressure over the spinning pump 4. After extruding the filament strands they are cooled and solidified within the cooling shaft 9.
  • the yarn sheet is withdrawn continuously by the godets 18.1 and 18.2 of the godet 16.
  • the merging of the threads from a spinning distance of the spinning device to a treatment distance of the godet 16 is performed by the rollers 13.1 of the first group of yarn guides 13 and the rollers 14.1 of the second group of yarn guides 14.
  • the godet 16 and the spinning device. 1 realize.
  • the outer threads of the yarn sheet 30 can be withdrawn from the spinning device 1 with a relatively large deflection angle and then fed to the godet device 16. Due to the size of the deflection of the threads can be proportionally shorten the distance between the spinning device and the godet device. Within the godet 16, the threads are stretched and swirled and then fed to the winding stations 26. In the winding stations, each of the threads is wound into a coil. Due to the substantially friction-free deflection on the freely rotatable rollers 13.1 and 14.1 of the thread deflection device 12, the physical properties of the threads are essentially the same and constant. In that regard, the device according to the invention is particularly suitable for drawing a larger number of threads from a spinning device 1. In Fig. 3, an embodiment is shown, in which the spinnerets 3 are arranged distributed on two spinning beams 2.1 and 2.2. The spinning beams
  • the spinning beams 2.1 and 2.2 are arranged side by side.
  • the spinning beams 2.1 and 2.2 are associated with separate spinning pumps 4 which are connected to the spinnerets 3 held on the respective spinning beams 2.1 and 2.2.
  • the cooling ducts 9.1 and 9.2 are connected to blower devices not shown here for generating a cooling air.
  • a godet device 16 and a winding device 21 are provided, which in this embodiment are identical to the aforementioned embodiment. In that regard, reference is made to the above description to avoid repetition.
  • the merging of the yarn sheet 30 between the spinning device 1 and the godet 16 is also carried out by the formed of two groups of yarn guides 13 and 14 Fadenumlenk issued 12.
  • the first group of yarn guides 13 is split into two subgroups, with a first subgroup being assigned to the spinning beam 2.1 and a second subgroup being assigned to the spinning beam 2.2.
  • the rollers 13.1 of the first group of yarn guides 13 are thus assigned directly to one of the spinnerets 3 at the spinning beams 2.1 and 2.2.
  • the second group of yarn guides 14 is held in the central region between the spinning beams 2.1 and 2.2.
  • the second group of yarn guides 14 in this embodiment also by freely rotatable rollers 14.1 formed, which are arranged one above the other and one below the other.
  • a subset of the rollers 14.1 are held on a first carrier 15.1 and a second subgroup of rollers 14.1 on the carrier 15.2.
  • the supports 15.1 and 15.2 are held in an inverted V-shaped arrangement each on a pivot axis 32.1 and 32.2.
  • the carrier can lead 15.1 and 15.2 between an operating position and a landing position.
  • the operating position of the carrier 15.1 and 15.2 is shown, in which the rollers 14.1 occupy an operating position.
  • the landing position of the carrier 15.1 and 15.2 are shown in dashed lines, in which the rollers 14.1 are held in a contact position.
  • This embodiment is particularly advantageous in order to apply the yarn sheet to the rollers 13.1 and 14.1 of the thread turning device 12 at the beginning of the process.
  • the embodiment shown in Fig. 3 is particularly suitable to jointly receive the extruded threads in adjacent spinning units as a group of threads and to be able to wind by a winding device to coils.
  • a further embodiment of the device according to the invention is shown schematically in a front view.
  • the exemplary embodiment consists of a spinning device 1, a preparation device 32, a thread deflection device 12, a godet device 16 and a winding device 21.
  • the spinning device 1, the godet 16 and the winding device 21 are identical to the embodiment of FIG. 3, so that at this point, reference to the the above description is taken and to avoid repetition no further explanation at this point.
  • a preparation device 32.1 and 32.2 are respectively arranged below the cooling shafts 9.1 and 9.2.
  • Each of the preparation devices 32.1 and 32.2 shown has one oiler 33 and one collecting thread guide 34 per thread.
  • the oiler 33 and the collecting yarn guide 34 each form a point of convergence to the upstream spinneret 3 to wet the filament strands and merge into a thread.
  • the oilers 33 are coupled together or separately with a fluid source, for example a metering pump.
  • the Fadenumlenk worn 12 is arranged with two groups of yarn guides 13 and 14.
  • Each group of yarn guides 13 and 14 has a plurality of rollers 13.1 and 14.1, which are arranged overlapping each other such that the threads of the yarn sheet 30 with identical wraps in the range of 90 ° to the rollers 13.1 and 14.1 are performed.
  • the threads of the yarn sheet 30 are thus guided on the rollers 13.1 of the first group of yarn guides 13 with a wrap angle in the range of 90 °.
  • the rollers are 13.1 and 14.1, which are assigned to one of the threads, at a substantially same working height.
  • the rollers 14.1 of the second group of yarn guides 14 are held on a V-shaped support 15 with an offset one above the other to form a V-shaped row arrangement.
  • the rollers 13.1 of the first group of thread guides are correspondingly assigned to the rollers 14.1, where in the case of the rollers 13.1, they span a vertical thread running plane by means of the collecting thread guides 34 which are arranged upstream of each other in the course of the thread.
  • the exemplary embodiments of the thread deflection device 12 shown in FIGS. 1 to 4 represent possible arrangements of the two groups of thread guides in order to bring together the group of yarns of a plurality of spinnerets to the smallest possible thread spacing.
  • the rollers are preferably designed to be freely rotatable. In principle, however, it is also possible to drive at least one of the groups of roles. In that regard, the spinnerets of a spinning station or several adjacent spinning stations can advantageously be gathered together and guided with a narrow pitch by a godet device.

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

Abstract

The invention relates to a device for melt-spinning, drawing, and winding a thread group, comprising a spinning device. The spinning device has a row of a plurality of spinning nozzles, wherein the threads produced by the spinning nozzles are drawn by means of a godet device with multiple drivable godets. The device is paired with a winding device with multiple winding stations arranged in a row. The row of winding stations is arranged orthogonally to the row of spinning nozzles. The different thread spacings within the spinning device and the godet device are bridged by a thread deflecting device. For this purpose, the thread deflecting device has a first group of thread guides and a second group of thread guides. The thread guides of the first group are arranged next to one another in a horizontal row with a spinning spacing. The aim of the invention is to obtain the largest deflections possible with a low height. According to the invention, this is achieved in that the thread guides of the two groups of the thread guides are made of freely rotatable rollers.

Description

Vorrichtung zum Schmelzspinnen, Abziehen und Aufwickeln einer Fadenschar  Device for melt spinning, stripping and winding a yarn sheet
Die Erfindung betrifft eine Vorrichtung zum Schmelzspinnen, Abziehen und Aufwickeln einer Fadenschar gemäß dem Oberbegriff des Anspruchs 1. The invention relates to a device for melt spinning, stripping and winding a yarn sheet according to the preamble of claim 1.
Eine gattungsgemäße Vorrichtung zum Schmelzspinnen, Abziehen und Aufwickeln einer Fadenschar ist aus der WO 2004/015173 bekannt. Zur Herstellung von synthetischen Fäden ist es allgemein bekannt, dass innerhalb einer Spinnposition eine Fadenschar mehrerer Fäden parallel nebeneinander gesponnen, verstreckt und zu Spulen aufgewickelt werden. Hierzu wird insbesondere die aus der WO 2004/015173 bekannte Vorrichtung eingesetzt. Die gattungsgemäße Vorrichtung weist hierzu eine Spin- neinrichtung auf, die eine Reihe von mehreren Spinndüsen aufweist. Unterhalb der Spinneinrichtung sind eine Galetteneinrichtung mit zumindest zwei antreibbaren Galetten und eine Aufspuleinrichtung mit mehreren Wickelstellen angeordnet. Hierbei ist die Galetteneinrichtung unmittelbar der Aufspuleinrichtung zugeordnet, wobei die Galetten im Wesentlichen quer zu den Spulspindeln der Aufspulvorrichtung ausgerichtet sind. Entlang der Spulspindeln erstrecken sich mehrere Wickelstellen, deren Reihe im Wesentlichen orthogonal zu der Reihe der Spinndüsen der Spinneinrichtung gehalten sind. Durch eine derartige Zuordnung der Galetteneinrichtung und der Aufspuleinrichtung sind sehr kompakte Ausführungen möglich. A generic device for melt spinning, stripping and winding a yarn sheet is known from WO 2004/015173. For the production of synthetic threads, it is generally known that within a spinning position a group of yarns of several threads are spun parallel, side by side, stretched and wound up into coils. For this purpose, the device known from WO 2004/015173 is used in particular. For this purpose, the generic device has a spin device which has a row of several spinnerets. Below the spinning device, a godet device with at least two drivable godets and a winding device with a plurality of winding points are arranged. Here, the godet device is assigned directly to the winding device, wherein the godets are aligned substantially transversely to the winding spindles of the winding device. Along the winding spindles extend a plurality of winding points, whose rows are held substantially orthogonal to the row of spinnerets of the spinning device. By such an association of the godet device and the winding device very compact designs are possible.
Nun ist es bei der Herstellung von Fäden erforderlich, dass die Fäden vom Schmelzspinnen bis hin zum Aufwickeln mit unterschiedlichen Fadenabständen in der Fadenschar geführt werden müssen. Um insbesondere die Übergänge zwischen einer Führung mit großem Fadenabstand zu einer Führung mit einem kleinen Fadenabstand zu überbrücken, werden Fadenumlenkeinrichtungen eingesetzt. So weist die bekannte Vorrichtung eine Fa- denumlenkreinrichtung zwischen der Spinneinrichtung und der Galettenein- richtung auf, die aus zwei Gruppen von Fadenführern gebildet ist. Eine erste Gruppe von Fadenführern ist der Spinneinrichtung zugeordnet, um die Fäden in einem Spinnabstand zu führen. Eine zweite Gruppe von Fadenführern ist der Galetteneinrichtung zugeordnet, um die Fadenschar zusammenzuraffen, so dass die Fäden mit einem wesentlich kleineren Fadenabstand am Umfang der Galetten führbar sind. Hierbei ist jedoch darauf zu achten, dass die Auslenkungen der Fäden insbesondere an den außen liegenden Fäden zu keiner ungewünschten Veränderung der Fadenspannungen und damit der physikalischen Eigenschaften der Fäden führen. So wird unabhängig von der Anzahl der Fäden vorausgesetzt, dass nach Fertigstellung alle Fäden der Fadenschar identische physikalische Eigenschaften aufweisen. Insoweit ist bei der bekannten Vorrichtung die Anzahl der in einer Reihe angeordneten Spinndüsen im Wesentlichen durch zulässige Auslenkwinkel an dem Faden begrenzt. Es ist daher Aufgabe der Erfindung, die gattungsgemäße Vorrichtung zum Schmelzspinnen, Abziehen und Aufwickeln einer Fadenschar derart weiterzubilden, dass unabhängig von der Anzahl der in einer Reihe gehaltenen Spinndüsen und unabhängig von einem maximalen Auslenkungswinkel möglichst eine hohe Gleichmäßigkeit in der Herstellung der Fäden erreicht wird. Now it is necessary in the production of threads that the threads must be performed from melt spinning to winding with different pitches in the yarn sheet. In particular, the Transitions between a guide with a large thread spacing to bridge a guide with a small thread spacing, Fadenumlenkeinrichtungen be used. Thus, the known device has a thread deflection device between the spinning device and the godet device, which is formed from two groups of yarn guides. A first group of yarn guides is associated with the spinning device to guide the yarns at a spinning distance. A second group of yarn guides is associated with the godet means to gather the yarn sheet so that the yarns are feasible with a much smaller yarn spacing on the circumference of the godets. In this case, however, care must be taken that the deflections of the threads, in particular on the outer threads, do not lead to any undesired change in the thread tensions and thus the physical properties of the threads. Thus, regardless of the number of threads, it is assumed that after completion all threads of the group of threads have identical physical properties. In that regard, in the known device, the number of spinnerets arranged in a row is essentially limited by permissible deflection angles on the thread. It is therefore an object of the invention to further develop the generic apparatus for melt spinning, stripping and winding a group of threads such that regardless of the number of spinnerets held in a row and regardless of a maximum deflection angle as high as possible uniformity in the production of the threads is achieved.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Fadenführer der beiden Gruppen von Fadenführern durch frei drehbare Rollen gebildet sind. Vorteilhafte Weiterbildungen der Erfindung sind durch die Merkmale und Merkmalskombinationen der Unteransprüche definiert. Die Erfindung zeichnet sich dadurch aus, dass die Fäden der Fadenschar im Übergang von der Spinneinrichtung zur Galetteneinrichtung im Wesentlichen reibungsfrei geführt werden können. Hierbei hat sich überraschenderweise herausgestellt, dass der Grad der Umschlingung an den Rollen, der im wesentlichen proportional zu dem Auslenkwinkel ist, keine Veränderung der physikalischen Eigenschaften verursacht. So können die Fäden im wesentlichen schlupffrei ohne größere Reibwirkung am Umfang der Rollen geführt werden. This object is achieved in that the thread guides of the two groups of yarn guides are formed by freely rotatable rollers. Advantageous developments of the invention are defined by the features and feature combinations of the subclaims. The invention is characterized in that the threads of the yarn sheet in the transition from the spinning device to the godet device can be guided substantially without friction. It has surprisingly been found that the degree of wrap on the rollers, which is substantially proportional to the deflection angle, causes no change in the physical properties. Thus, the threads can be guided without slippage substantially without friction on the circumference of the rollers.
Damit die Fadenschar mit möglichst engem Fadenabstand gemeinsam am Umfang der Galetten der Galetteneinrichtung geführt werden kann, ist die Weiterbildung der Erfindung bevorzugt ausgeführt, bei welcher die Rollen der zweiten Gruppe von Fadenführern mit einem Versatz übereinander und / oder untereinander angeordnet sind. So lassen sich Fadenabstände zwischen den Fäden realisieren, die kleiner sind als der Durchmesser einer Rol- le. Übliche Fadenabstände zur Führung der Fäden an einer Galette liegen im Bereich von 4 - 8 mm. Durch die versetzte Anordnung der Rollen übereinander oder untereinander sind sogar kleinere Fadenabstände zwischen den Fäden der Fadenschar realisierbar. Hierbei ist der horizontale Versatz zwischen den Rollen der zweiten Gruppe von Fadenführern vorzugsweise gleich dem Fadenabstand, so dass die Fäden unmittelbar nach Ablauf von den Rollen am Umfang der Galetten führbar sind. Um eine kompakte Anordnung der Rollen zu erhalten, ist desweiteren vorgesehen, die Rollen der zweiten Gruppe von Fadenführern in einen mittleren Bereich unterhalb der Spinneinrichtung in einer umgekehrt V-förmigen Reihenanordnung zu halten. Somit lassen sich die äußeren Fäden der Spin- neinrichtung unter gleichen Bedingungen aus der Spinneinrichtung abziehen und der Galetteneinrichtung zuführen. Thus, the yarn sheet can be performed together with the smallest possible thread spacing on the circumference of the godet godet, the development of the invention is preferably carried out in which the rollers of the second group of yarn guides with an offset one above the other and / or one below the other. This makes it possible to realize thread spacings between the threads which are smaller than the diameter of a roll. Common thread distances for guiding the threads on a godet are in the range of 4 - 8 mm. The staggered arrangement of the rollers one above the other or with each other even smaller pitches between the threads of the yarn sheet can be realized. Here, the horizontal offset between the rollers of the second group of yarn guides is preferably equal to the thread spacing, so that the threads are feasible immediately after the expiration of the rollers on the circumference of the godets. In order to obtain a compact arrangement of the rollers, it is further provided to keep the rollers of the second group of yarn guides in a central region below the spinning device in an inverted V-shaped row arrangement. Thus, the outer threads of the spinning device can be removed from the spinning device under the same conditions and fed to the godet device.
Zur Fadenführung zwischen der Spinneinrichtung und der Galetteneinrichtung sowie zwischen der Galetteneinrichtung und der Aufspuleinrichtung hat sich desweiteren besonders bewährt, dass die Achsen der Rollen der beiden Gruppen von Fadenführern und die Achsen der Galetten orthogonal zueinander ausgerichtet sind. Damit ist eine im Wesentlichen reibungsfreie Führung der Fäden zwischen der Spinneinrichtung bis hin zu den Wickelstellen der Aufspuleinrichtung möglich. For thread guidance between the spinning device and the godet device as well as between the godet device and the winding device has further proven particularly that the axes of the roles of the two groups of yarn guides and the axes of the godets are aligned orthogonal to each other. For a substantially frictionless guidance of the threads between the spinning device to the winding points of the winding device is possible.
Die Weiterbildung der Erfindung, bei welcher die Spinndüsen der Spinneinrichtung von zwei nebeneinander angeordneten Spinnbalken gehalten sind und bei welcher die Rollen der zweiten Gruppe von Fadenführern im mittleren Bereich zwischen den Spinnbalken gehalten sind, ist insbesondere ge- eignet, um mehrere Fadenscharen benachbarter Spinnstellen gleichzeitig abzuziehen und zu Spulen aufzuwickeln. Diese Ausführung der Erfindung ist insbesondere geeignet, um vorhandene Schmelzspinneinrichtungen zu modernisieren. So lassen sich vorhandene Spinneinrichtungen mit neuen Take -Up- Systemen kombinieren. The development of the invention, in which the spinning nozzles of the spinning device are held by two juxtaposed spinning beams and in which the rollers of the second group of yarn guides are held in the central region between the spinning beams, is particularly suitable for simultaneously pulling off a plurality of yarn sets of adjacent spinning stations and to wind up coils. This embodiment of the invention is particularly suitable for modernizing existing melt spinning equipment. This allows existing spinning units to be combined with new take-up systems.
Zur Erleichterung der Bedienung ist die Weiterbildung der Erfindung vorgesehen, bei welcher die Rollen den zweiten Gruppen von Fadenführern an einem oder zwei beweglichen Trägern gehalten sind, welche jeweils zwischen einer Anlegeposition der Rollen und einer Betriebsposition der Rol- len führbar sind. So können die Rollen derart gehalten werden, dass eine manuelle Fadenführung mittels einer Saugpistole zum Anlegen der Fäden unabhängig von dem Versatz möglich wird. So lässt sich der Träger vorzugsweise an einem Ende einer Schwenkachse halten und in einem Winkelbereich bis zu einer Horizontalen führen. Damit steht der maximale Abstand zwischen den Rollen zur Verfügung, um die Fäden an den Rollen anzulegen. Um insbesondere im Bereich der Galetteneinrichtung und der Aufspuleinrichtung eine möglichst kompakte Fadenführung zu erhalten, ist desweiteren vorgesehen, dass die Galetteneinrichtung und die Aufspuleinrichtung in einem mittleren Bereich unterhalb der Spinneinrichtung angeordnet sind und dass die Galetteneinrichtung an einem Stirnende der Aufspuleinrich- tung gehalten ist. Damit lässt sich die Fadenschar im Wesentlichen aus einer horizontalen Ebene heraus den einzelnen Wickelstellen zuführen. To facilitate the operation, the development of the invention is provided, in which the rollers are held the second groups of yarn guides on one or two movable carriers, which in each case between a contact position of the rollers and an operating position of the roller len are feasible. Thus, the rollers can be held such that a manual thread guide by means of a suction gun for applying the threads is possible regardless of the offset. Thus, the carrier can preferably hold at one end of a pivot axis and lead in an angular range up to a horizontal. This provides the maximum distance between the rollers to apply the threads to the rollers. In order to obtain as compact a thread guide as possible in particular in the area of the godet device and the winding device, it is further provided that the godet device and the winding device are arranged in a middle region below the spinning device and that the godet device is held at a front end of the winding device. Thus, the yarn sheet can be out of a single horizontal plane out of the individual winding points.
Bei Prozessunterbrechungen aufgrund von Fehlverhalten in der Aufspuleinrichtung hat sich die Weiterbildung der Erfindung besonders bewährt, bei welcher die Galetteneinrichtung eine Fadenabsaugeinrichtung aufweist, die den Rollen der zweiten Gruppe von Fadenführern im Fadenlauf nachgeordnet ist. So wird das Durchtrennen der Fadenschar bei einer Störung in einem Bereich unterhalb der Fadenumlenkeinrichtung ausgeführt. Damit werden die Fäden selbst bei einer Störung am Umfang der Rollen geführt. Ein anschließendes Wiederanlegen ist nur in der Galetteneinrichtung und der Aufspuleinrichtung erforderlich. Somit sind kurze Unterbrechungszeiten zu realisieren. Die Erfindung wird nachfolgend anhand einiger Ausführungsbeispiele unter Bezug auf die beigefügten Figuren näher erläutert. In process interruptions due to misconduct in the winding device, the development of the invention has proven particularly useful in which the godet has a Fadenabsaugeinrichtung, which is arranged downstream of the rollers of the second group of yarn guides in the yarn path. Thus, the severing of the yarn sheet is carried out at a fault in an area below the Fadenumlenkeinrichtung. Thus, the threads are guided even with a disturbance on the circumference of the rollers. A subsequent reapplication is required only in the godet device and the winding device. Thus, short interruption times can be realized. The invention will be explained in more detail with reference to some embodiments with reference to the accompanying figures.
Es stellen dar: They show:
Fig. 1 schematisch eine Vorderansicht eines ersten Ausführungsbeispiels der erfindungsgemäßen Vorrichtung Fig. 1 shows schematically a front view of a first embodiment of the device according to the invention
Fig. 2 schematisch eine Seitenansicht des Ausführungsbeispiels aus Fig. 1 FIG. 2 is a schematic side view of the embodiment of FIG. 1. FIG
Fig. 3 schematisch eine Vorderansicht eines weiteren Ausführungsbeispiels der erfindungsgemäßen Vorrichtung Fig. 3 shows schematically a front view of another embodiment of the device according to the invention
Fig. 4 schematisch eine Vorderansicht eines weiteren Ausführungsbeispiels der erfindungsgemäßen Vorrichtung  Fig. 4 shows schematically a front view of another embodiment of the device according to the invention
In den Fig. 1 und 2 ist ein erstes Ausführungsbeispiel der erfmdungsgemä- ßen Vorrichtung zum Schmelzspinnen, Abziehen und Aufwickeln einer Fadenschar in mehreren Ansichten dargestellt. Fig. 1 zeigt das Ausführungsbeispiel in einer Vorderansicht und in Fig. 2 ist das Ausführungsbeispiel in einer Seitenansicht dargestellt. Insoweit kein ausdrücklicher Bezug zu einer der Figuren gemacht ist, gilt die nachfolgende Beschreibung für beide Figuren. 1 and 2, a first embodiment of the device according to the invention for melt-spinning, stripping and winding up a group of threads is shown in several views. Fig. 1 shows the embodiment in a front view and in Fig. 2, the embodiment is shown in a side view. Unless an explicit reference is made to one of the figures, the following description applies to both figures.
Das Ausführungsbeispiel weist eine Spinneinrichtung 1, eine Fadenumlenkeinrichtung 12, eine Galetteneinrichtung 16 und eine Aufspuleinrichtung 21 auf, die untereinander angeordnet sind. The exemplary embodiment has a spinning device 1, a thread deflection device 12, a godet device 16 and a winding device 21, which are arranged one below the other.
Die Spinneinrichtung 1 weist zum Spinnen multifiler Fäden mehrere Spinndüsen 3 auf, die in einer Reihenanordnung mit Abstand zueinander an der Unterseite eines Spinnbalkens 2 gehalten sind. Der Spinnbalken 2 ist zur Temperierung der Spinndüsen 3 beheizbar ausgeführt. Innerhalb des Spinn- balkens 2 ist ein Schmelzeverteilersystem 6 ausgebildet, das mit einer Spinnpumpe 4 verbunden ist. Die Spinnpumpe 4 ist als eine Mehrfachpumpe ausgeführt, um zu jeder Spinndüse 3 einen Teilschmelzestrom zu erzeugen. Hierzu wird die Spinnpumpe 4 durch einen Pumpenantrieb 4.1 ange- trieben. The spinning device 1 has a plurality of spinnerets 3 for spinning multifilament threads, which are held in a row arrangement at a distance from one another on the underside of a spinneret 2. The spinning beam 2 is designed to heat the spinnerets 3 heated. Within the spinning bar 2, a melt distribution system 6 is formed, which is connected to a spinning pump 4. The spin pump 4 is designed as a multiple pump to produce a partial melt stream to each spinneret 3. For this purpose, the spinning pump 4 is driven by a pump drive 4.1.
Über einen Zulauf 5 ist die Spinnpumpe 4 mit einer hier nicht dargestellten Schmelzequelle beispielsweise einem Extruder oder einer Austragspumpe verbunden. Via an inlet 5, the spinning pump 4 is connected to a melt source, not shown here, for example, an extruder or a discharge pump.
Unterhalb des Spinnbalkens 2 ist eine Abkühlvorrichtung 7 angeordnet, die zur Führung und Abkühlung der frisch extrudierten Filamentstränge der Fäden einen Kühlschacht 9 unterhalb des Spinnbalkens 2 bildet. Wie aus der Darstellung in Fig. 2 hervorgeht, ist dem Kühlschacht 9 eine einseitige Blaskammer 10 zugeordnet, die über eine Blaswand 1 1 mit dem Kühlschacht 9 verbunden ist. Below the spinning beam 2, a cooling device 7 is arranged, which forms a cooling shaft 9 below the spinning beam 2 for guiding and cooling the freshly extruded filament strands of the threads. As can be seen from the illustration in FIG. 2, the cooling shaft 9 is assigned a one-sided blow chamber 10, which is connected to the cooling shaft 9 via a blow-off wall 11.
An dieser Stelle sei ausdrücklich erwähnt, dass die dargestellte Abkühlvor- richtung mit einem quer gerichteten Kühlluftstrom beispielhaft ist. Grundsätzlich können derartige Abkühlvorrichtungen auch Einrichtungen aufweisen, die einen radial von innen nach außen oder radial von außen nach innen erzeugten Kühlluftstrom auf die Filamente blasen. Die frisch extrudierten Fäden bilden eine Fadenschar 30, die durch die Ga- letteneinrichtung 16 aus der Spinneinrichtung 1 abgezogen wird. Die Galet- teneinrichtung 16 weist in diesem Ausführungsbeispiel zwei angetriebene Galetten 18.1 und 18.2 auf, die an einem Galettenträger 17 auskragend mit ihren Galettenmänteln gehalten sind. Die den Galetten 18.1 und 18.2 zugeordneten Antriebe sind an der Rückseite des Galettenträgers 17 gehalten. It should be expressly mentioned at this point that the illustrated cooling device is exemplary with a transverse cooling air flow. In principle, such cooling devices can also have devices which blow a cooling air flow generated radially from inside to outside or radially from outside to inside onto the filaments. The freshly extruded filaments form a bundle of threads 30, which is withdrawn from the spinning device 1 by the fork device 16. In this exemplary embodiment, the godet device 16 has two driven godets 18. 1 and 18. 2, which project on a godet carrier 17 in cantilever fashion her godet coats are held. The godets 18.1 and 18.2 associated drives are held on the back of the godet carrier 17.
In einem einer ersten Galette 18.1 vorgeordneten Einlaufbereich ist eine Absaugeinrichtung 19 angeordnet. Die Absaugeinrichtung 19 weist zumindest einen beweglichen Fadenführer, ein Messer und einen Saugrüssel auf, die hier nicht näher dargestellt sind. Derartige Absaugeinrichtungen 19 sind hinlänglich bekannt und daher an dieser Stelle nicht weiter beschrieben. Zwischen den Galetten 18.1 und 18.2 ist eine Verwirbelungsvorrichtung 20 an dem Galettenträger 17 gehalten, durch welchen die einzelnen Fäden der Fadenschar 30 verwirbelt werden. In a first godet 18.1 upstream inlet area a suction device 19 is arranged. The suction device 19 has at least one movable yarn guide, a knife and a proboscis, which are not shown here. Such suction devices 19 are well known and therefore not further described at this point. Between the godets 18.1 and 18.2, a swirling device 20 is held on the godet carrier 17, through which the individual threads of the yarn sheet 30 are swirled.
Der Galettenträger 17 ist unmittelbar an einer Stirnseite der Aufspuleinrich- tung 21 angeordnet, so dass die von der Galette 18.2 ablaufenden Fäden aus einer im wesentlichen horizontalen Verteilebene heraus auf eine Mehrzahl von Wickelstellen 26 verteilt werden. Der Galettenträger 17 stützt sich hierbei unmittelbar an einem Maschinengestell 22 der Aufspuleinrichtung 21 ab. The godet carrier 17 is arranged directly on an end face of the winding device 21, so that the threads running from the godet 18.2 are distributed out of a substantially horizontal distribution plane onto a plurality of winding points 26. The godet carrier 17 is supported here directly on a machine frame 22 of the winding device 21.
Die innerhalb der Aufspuleinrichtung 21 ausgebildeten Wickelstellen 26 sind identisch ausgebildet und erstrecken sich entlang einer Spulspindel 23.1. die Reihe der Wickelstellen 26 und damit die Spulspindeln sind im Wesentlichen orthogonal zu der Reihe der Spinndüsen 3 der Spinneinrich- tung 1 angeordnet. Damit ist eine sehr kompakte Anordnung der Galetten- einrichtung 16 und der Aufspuleinrichtung 21 möglich. The winding points 26 formed within the winding device 21 are of identical design and extend along a winding spindle 23.1. the row of winding stations 26 and thus the winding spindles are arranged essentially orthogonal to the row of spinnerets 3 of the spinning device 1. For a very compact arrangement of the godet 16 and the winding device 21 is possible.
Die Spulspindel 23.1 ist an einem drehbar gelagerten Spulrevolver 28 angeordnet, wobei der Spulrevolver 28 eine um 180° versetzt angeordnete zwei- te Spulspindel 23.2 trägt. Insoweit lassen sich die Spulspindeln 23.1 und 23.2 abwechselnd in einen Wickelbereich und einen Wechselbereich führen. In dem Wickelbereich wirken die Spulspindeln 23.1 und 23.2 mit den jeweiligen Wickelstellen 26 zusammen, um in jeder der Wickelstellen 26 eine Spule 29 am Umfang der Spulspindel 23.1 oder 23.2 zu bilden. The winding spindle 23.1 is arranged on a rotatably mounted winding turret 28, wherein the winding turret 28 has an offset by 180 ° arranged two- te winding spindle 23.2 carries. In that regard, the winding spindles 23.1 and 23.2 can alternately lead into a winding area and a change area. In the winding area, the winding spindles 23.1 and 23.2 cooperate with the respective winding locations 26 in order to form a spool 29 in each of the winding locations 26 on the circumference of the winding spindle 23.1 or 23.2.
Die Wickelstellen 26 sind identisch aufgebaut und weisen jeweils eine Umlenkrolle 24 und eine Changiereinheit 25 auf. Durch die Umlenkrollen 24 erfolgt eine Vereinzelung der Fäden, die anschließend mittels der Changie- reinheit 25 hin- und hergeführt werden. Zum Ablegen der Fäden am Umfang der Spulen 29 ist eine Andrückwalze 27 vorgesehen, die sich über alle Wickelstellen 26 erstreckt. The winding stations 26 are constructed identically and each have a deflection roller 24 and a traversing unit 25. By the deflection rollers 24 is a separation of the threads, which are then reciprocated by means of the traversing unit 25 and forth. For depositing the threads on the circumference of the coil 29, a pressure roller 27 is provided, which extends over all winding positions 26.
Um die Fadenschar im Bereich zwischen der Spinneinrichtung 1 und der Galetteneinrichtung 16 zusammenzuführen, ist die Fadenumlenkeinrichtung 12 vorgesehen. Die Fadenumlenkeinrichtung 12 weist in diesem Ausführungsbeispiel eine erste Gruppe von Fadenführern 13 auf, die durch jeweils frei drehbare Rollen 13.1 gebildet sind. Die Rollen 13.1 der ersten Gruppe von Fadenführern sind den Spinndüsen 3 zugeordnet, um in einem soge- nannten Konvergenzpunkt die Filamentstränge der jeweiligen Fäden zusammenzuführen. Insoweit sind die Rollen 13.1 in einem Spinnabstand zueinander in einer reihenförmigen Anordnung jeweils an einem Rollträger 31 gehalten. Grundsätzlich können die Rollen 13.1 auch an einem einzigen Rollenträger gehalten werden. To merge the yarn sheet in the area between the spinning device 1 and the godet 16, the Fadenumlenkeinrichtung 12 is provided. The Fadenumlenkeinrichtung 12 has in this embodiment, a first group of yarn guides 13, which are formed by each freely rotatable rollers 13.1. The rollers 13.1 of the first group of yarn guides are associated with the spinnerets 3 in order to merge the filament strands of the respective yarns in a so-called convergence point. In that regard, the rollers 13.1 are held at a spinning distance from one another in a row-like arrangement, respectively, on a roller carrier 31. In principle, the rollers 13.1 can also be held on a single roller carrier.
Unterhalb der ersten Gruppe von Fadenführern 13 ist eine zweite Gruppe von Fadenführern 14 angeordnet, die mehrere Rollen 14.1 enthalten. Die Rollen 14.1 der zweiten Gruppe von Fadenführern 14 sind mit einem Versatz übereinander und untereinander derart angeordnet, dass sich eine um- gekehrt V-förmige Reihenanordnung ergibt. Hierbei werden die Rollen 14.1 an einem V-förmigen Träger 15 gehalten, der im mittleren Bereich der Reihe der Spinndüsen 3 angeordnet ist. Die zweite Gruppe von Fadenführern 14 ist der Galetteneinrichtung 16 derartig zugeordnet, dass die Fäden ohne Umlenkung zwischen den Rollen 14.1 und der ersten Galetten 18.1 führbar sind. Below the first group of thread guides 13, a second group of thread guides 14 is arranged, which contain a plurality of rollers 14.1. The rollers 14.1 of the second group of yarn guides 14 are arranged one above the other with an offset and with each other such that a um- swept V-shaped series arrangement results. In this case, the rollers 14.1 are held on a V-shaped support 15, which is arranged in the middle region of the row of spinnerets 3. The second group of yarn guides 14 is associated with the godet 16 in such a way that the threads without guide between the rollers 14.1 and the first godets 18.1 are feasible.
Wie insbesondere aus der Fig. 1 hervorgeht, ist der zwischen benachbarten Rollen 14.1 der zweiten Gruppe von Fadenführern 14 gebildete horizontale Versatz gleich einem Fadenabstand benachbarter Fäden. Die Fäden der Fadenschar 30 können somit unabhängig vom Durchmesser der Rollen 14.1 mit relativ kleinem Fadenabstand zueinander unmittelbar den Galetten 18.1 und 18.2 der Galetteneinrichtung 16 zugeführt werden. Die Fadenschar wird dabei bevorzugt mit einem Fadenabstand zwischen den Fäden im Be- reich von 4 mm bis 8 mm geführt. Die Rollen 14.1 der zweiten Gruppe von Fadenführern 14 sind mit ihren Achsen dazu orthogonal zu den Achsen der Galetten 18.1 und 18.2 ausgerichtet. As can be seen in particular from FIG. 1, the horizontal offset formed between adjacent rollers 14.1 of the second group of yarn guides 14 is equal to a yarn spacing of adjacent yarns. The threads of the yarn sheet 30 can thus be fed directly to the godets 18.1 and 18.2 of the godet 16 regardless of the diameter of the rollers 14.1 with relatively small thread spacing. The group of threads is preferably guided with a thread spacing between the threads in the range of 4 mm to 8 mm. The rollers 14.1 of the second group of yarn guides 14 are aligned with their axes orthogonal thereto to the axes of the godets 18.1 and 18.2.
Bei dem in Fig. 1 und 2 dargestellten Ausführungsbeispiel ist die Anzahl der gewählten Spinndüsen 3 in der Spinneinrichtung 1 sowie die Anzahl der Wickelstellen 26 in der Aufspuleinrichtung 21 beispielhaft. So sind hier die Einrichtungen zur Herstellung von sechs Fäden ausgelegt. Grundsätzlich können derartige Spinneinrichtungen auch doppelt so viele Fäden gleichzeitig herstellen. Die reihenförmige Anordnung der Spinndüsen 3 sowie die reihenförmige Anordnung der Wickelstellen 26 bleibt dabei unverändert, so dass sich die Wickelstellen 26 im Wesentlichen orthogonal zu der Reihe der Spinndüsen 3 erstreckt. In den Darstellungen der Fig. 1 und 2 sind die Einrichtungen in Funktion dargestellt. Hierbei werden über die Spinndüsen 3 kontinuierlich pro Spinndüse eine Vielzahl von Filamentsträngen aus einer Polymerschmelze extrudiert. Hierzu wird jeder der Spinndüse 3 ein Teilschmelzestrom der Polymerschmelze unter Druck über der Spinnpumpe 4 zugeführt. Nach dem Extrudieren der Filamentstränge werden diese innerhalb des Kühlschachtes 9 abgekühlt und verfestigt. Dabei wird die Fadenschar durch die Galetten 18.1 und 18.2 der Galetteneinrichtung 16 kontinuierlich abgezogen. Das Zusammenführen der Fäden aus einem Spinnabstand der Spinneinrichtung zu einem Behandlungsabstand der Galetteneinrichtung 16 erfolgt durch die Rollen 13.1 der ersten Gruppe von Fadenführern 13 und den Rollen 14.1 der zweiten Gruppe von Fadenführern 14. Hierbei lassen sich kurze Abstände zwischen der Galetteneinrichtung 16 und der Spinneinrichtung 1 realisieren. So können insbesondere die äußeren Fäden der Fadenschar 30 mit relativ großem Umlenkwinkel aus der Spinneinrichtung 1 abgezogen und anschließend der Galetteneinrichtung 16 zugeführt werden. Durch die Größe der Umlenkung der Fäden lässt sich proportional der Abstand zwischen der Spinneinrichtung und der Galetteneinrichtung verkürzen. Innerhalb der Galetteneinrichtung 16 werden die Fäden verstreckt und verwirbelt und anschließend den Wickelstellen 26 zugeführt. In den Wickelstellen wird jeder der Fäden zu einer Spule gewickelt. Aufgrund der im wesentlichen reibungsfreien Umlenkung an den frei drehbaren Rollen 13.1 und 14.1 der Fadenumlenkeinrichtung 12 sind die physikalischen Eigenschaften der Fäden im Wesentlichen gleich und konstant. Insoweit ist die erfindungsgemäße Vorrichtung besonders geeignet, um eine größere Anzahl von Fäden aus einer Spinneinrichtung 1 abzuziehen. In Fig. 3 ist ein Ausführungsbeispiel gezeigt, bei welchem die Spinndüsen 3 auf zwei Spinnbalken 2.1 und 2.2 verteilt angeordnet sind. Die SpinnbalkenIn the embodiment shown in FIGS. 1 and 2, the number of selected spinnerets 3 in the spinning device 1 and the number of winding points 26 in the winding device 21 is exemplary. So here are the facilities designed to produce six threads. In principle, such spinning devices can also produce twice as many threads at the same time. The row-shaped arrangement of the spinnerets 3 and the row-shaped arrangement of the winding points 26 remains unchanged, so that the winding points 26 extends substantially orthogonal to the row of spinnerets 3. In the illustrations of Figs. 1 and 2, the devices are shown in function. In this case, a multiplicity of filament strands are continuously extruded from a polymer melt via the spinnerets 3 per spinneret. For this purpose, each of the spinneret 3 is fed a partial melt stream of the polymer melt under pressure over the spinning pump 4. After extruding the filament strands they are cooled and solidified within the cooling shaft 9. The yarn sheet is withdrawn continuously by the godets 18.1 and 18.2 of the godet 16. The merging of the threads from a spinning distance of the spinning device to a treatment distance of the godet 16 is performed by the rollers 13.1 of the first group of yarn guides 13 and the rollers 14.1 of the second group of yarn guides 14. Here are short distances between the godet 16 and the spinning device. 1 realize. Thus, in particular the outer threads of the yarn sheet 30 can be withdrawn from the spinning device 1 with a relatively large deflection angle and then fed to the godet device 16. Due to the size of the deflection of the threads can be proportionally shorten the distance between the spinning device and the godet device. Within the godet 16, the threads are stretched and swirled and then fed to the winding stations 26. In the winding stations, each of the threads is wound into a coil. Due to the substantially friction-free deflection on the freely rotatable rollers 13.1 and 14.1 of the thread deflection device 12, the physical properties of the threads are essentially the same and constant. In that regard, the device according to the invention is particularly suitable for drawing a larger number of threads from a spinning device 1. In Fig. 3, an embodiment is shown, in which the spinnerets 3 are arranged distributed on two spinning beams 2.1 and 2.2. The spinning beams
2.1 und 2.2 sind nebeneinander angeordnet. Den Spinnbalken 2.1 und 2.2 sind separate Spinnpumpen 4 zugeordnet, die mit den am jeweiligen Spinn- balken 2.1 und 2.2 gehaltenen Spinndüsen 3 verbunden sind. 2.1 and 2.2 are arranged side by side. The spinning beams 2.1 and 2.2 are associated with separate spinning pumps 4 which are connected to the spinnerets 3 held on the respective spinning beams 2.1 and 2.2.
Unterhalb des Spinnbalkens 2.1 und 2.2 ist jeweils eine Abkühlvorrichtung 7 vorgesehen, die zwei nebeneinander ausgebildete Kühlschächte 9.1 undBelow the spinning beam 2.1 and 2.2, a cooling device 7 is provided in each case, the two adjacent cooling shafts 9.1 and
9.2 aufweist. Die Kühlschächte 9.1 und 9.2 sind mit hier nicht dargestellten Blaseinrichtungen zur Erzeugung einer Kühlluft verbunden. Zum Abziehen der an den beiden Spinnbalken erzeugten Fäden ist eine Galetteneinrichtung 16 und eine Aufspuleinrichtung 21 vorgesehen, die in diesem Ausführungsbeispiel identisch zu dem vorgenannten Ausführungsbeispiel sind. Insoweit wird zur Vermeidung von Wiederholungen auf die vorgenannte Beschrei- bung Bezug genommen. 9.2. The cooling ducts 9.1 and 9.2 are connected to blower devices not shown here for generating a cooling air. To pull off the threads produced on the two spinning beams, a godet device 16 and a winding device 21 are provided, which in this embodiment are identical to the aforementioned embodiment. In that regard, reference is made to the above description to avoid repetition.
Das Zusammenführen der Fadenschar 30 zwischen der Spinneinrichtung 1 und der Galetteneinrichtung 16 wird ebenfalls durch die aus zwei Gruppen von Fadenführern 13 und 14 gebildete Fadenumlenkeinrichtung 12 durch- geführt. In diesem Ausführungsbeispiel ist die erste Gruppe von Fadenführern 13 in zwei Teilgruppen aufgesplittet, wobei eine erste Teilgruppe dem Spinnbalken 2.1 und eine zweite Teilgruppe dem Spinnbalken 2.2 zugeordnet sind. Die Rollen 13.1 der ersten Gruppe von Fadenführern 13 sind somit unmittelbar einer der Spinndüsen 3 an den Spinnbalken 2.1 und 2.2 zuge- ordnet. The merging of the yarn sheet 30 between the spinning device 1 and the godet 16 is also carried out by the formed of two groups of yarn guides 13 and 14 Fadenumlenkeinrichtung 12. In this embodiment, the first group of yarn guides 13 is split into two subgroups, with a first subgroup being assigned to the spinning beam 2.1 and a second subgroup being assigned to the spinning beam 2.2. The rollers 13.1 of the first group of yarn guides 13 are thus assigned directly to one of the spinnerets 3 at the spinning beams 2.1 and 2.2.
Die zweite Gruppe von Fadenführern 14 ist im mittleren Bereich zwischen den Spinnbalken 2.1 und 2.2 gehalten. Die zweite Gruppe von Fadenführern 14 wird in diesem Ausführungsbeispiel auch durch frei drehbare Rollen 14.1 gebildet, die übereinander und untereinander angeordnet sind. Hierzu sind eine Teilgruppe der Rollen 14.1 an einem ersten Träger 15.1 und eine zweite Teilgruppe von Rollen 14.1 an dem Träger 15.2 gehalten. Die Träger 15.1 und 15.2 sind in einer umgekehrt V-förmigen Anordnung jeweils an einer Schwenkachse 32.1 und 32.2 gehalten. So lassen sich die Träger 15.1 und 15.2 zwischen einer Betriebsstellung und einer Anlegestellung führen. In Fig. 3 ist die Betriebsstellung der Träger 15.1 und 15.2 dargestellt, in welcher die Rollen 14.1 eine Betriebsposition einnehmen. Die Anlegestellung der Träger 15.1 und 15.2 sind gestrichelt dargestellt, in welcher die Rollen 14.1 in einer Anlegeposition gehalten sind. Diese Ausführung ist insbesondere vorteilhaft, um bei Prozessbeginn die Fadenschar an den Rollen 13.1 und 14.1 der Fadenumlenkeinrichtung 12 anzulegen. The second group of yarn guides 14 is held in the central region between the spinning beams 2.1 and 2.2. The second group of yarn guides 14 in this embodiment also by freely rotatable rollers 14.1 formed, which are arranged one above the other and one below the other. For this purpose, a subset of the rollers 14.1 are held on a first carrier 15.1 and a second subgroup of rollers 14.1 on the carrier 15.2. The supports 15.1 and 15.2 are held in an inverted V-shaped arrangement each on a pivot axis 32.1 and 32.2. Thus, the carrier can lead 15.1 and 15.2 between an operating position and a landing position. In Fig. 3, the operating position of the carrier 15.1 and 15.2 is shown, in which the rollers 14.1 occupy an operating position. The landing position of the carrier 15.1 and 15.2 are shown in dashed lines, in which the rollers 14.1 are held in a contact position. This embodiment is particularly advantageous in order to apply the yarn sheet to the rollers 13.1 and 14.1 of the thread turning device 12 at the beginning of the process.
Die Funktion des in Fig. 3 dargestellten Ausführungsbeispiels ist identisch zu dem Ausführungsbeispiel nach Fig. 1 und 2. Insoweit wird zu der vorgenannten Beschreibung Bezug genommen. The function of the embodiment shown in Fig. 3 is identical to the embodiment of FIGS. 1 and 2. In that regard, reference is made to the above description.
Das in Fig. 3 dargestellte Ausführungsbeispiel ist besonders geeignet, um die in benachbarten Spinnstellen extrudierten Fäden gemeinschaftlich als eine Fadenschar aufzunehmen und durch eine Aufspuleinrichtung zu Spulen wickeln zu können. The embodiment shown in Fig. 3 is particularly suitable to jointly receive the extruded threads in adjacent spinning units as a group of threads and to be able to wind by a winding device to coils.
In der Fig. 4 ist ein weiteres Ausführungsbeispiel der erfindungsgemäßen Vorrichtung schematisch in einer Vorderansicht dargestellt. Das Ausfüh- rungsbeispiel besteht aus einer Spinneinrichtung 1, einer Präparationseinrichtung 32, einer Fadenumlenkeinrichtung 12, einer Galetteneinrichtung 16 und einer Aufspuleinrichtung 21. Die Spinneinrichtung 1 , die Galetteneinrichtung 16 und die Aufspuleinrichtung 21 sind identisch zu dem Ausführungsbeispiel nach Fig. 3 ausgeführt, so dass an dieser Stelle Bezug zu der vorgenannten Beschreibung genommen wird und zur Vermeidung von Wiederholungen keine weiteren Erläuterungen an dieser Stelle gegeben werden. Um die aus den Spinndüsen 3 extrudierten Filamentstränge jeweils zu einem Faden zusammenzuführen, sind unterhalb der Kühlschächte 9.1 und 9.2 jeweils eine Präparationsvorrichtung 32.1 und 32.2 angeordnet. Jede der dargestellten Präparationsvorrichtungen 32.1 und 32.2 weist pro Faden einen Öler 33 und einen Sammelfadenführer 34 auf. Hierbei bilden der Öler 33 und der Sammelfadenführer 34 jeweils einen Konvergenzpunkt zu der vorgeordneten Spinndüse 3, um die Filamentstränge zu benetzen und zu einem Faden zusammenzuführen. Die Öler 33 sind gemeinsam oder separat mit einer Fluidquelle beispielsweise einer Dosierpumpe gekoppelt. Unterhalb der Präparationseinrichtung 32 ist die Fadenumlenkeinrichtung 12 mit zwei Gruppen von Fadenführern 13 und 14 angeordnet. Jede Gruppe von Fadenführern 13 und 14 weist mehrere Rollen 13.1 und 14.1 auf, die derart überlappend zueinander angeordnet sind, dass die Fäden der Fadenschar 30 mit identischen Umschlingungen im Bereich von 90° an den Rol- len 13.1 und 14.1 geführt sind. Die Fäden der Fadenschar 30 werden somit an den Rollen 13.1 der ersten Gruppe von Fadenführern 13 mit einem Um- schlingungswinkel im Bereich von 90° geführt. Somit liegen die Rollen 13.1 und 14.1, die einer der Fäden zugeordnet sind, auf einer im wesentlichen gleichen Arbeitshöhe. 4, a further embodiment of the device according to the invention is shown schematically in a front view. The exemplary embodiment consists of a spinning device 1, a preparation device 32, a thread deflection device 12, a godet device 16 and a winding device 21. The spinning device 1, the godet 16 and the winding device 21 are identical to the embodiment of FIG. 3, so that at this point, reference to the the above description is taken and to avoid repetition no further explanation at this point. In order to merge each of the filament strands extruded from the spinnerets 3 into a thread, a preparation device 32.1 and 32.2 are respectively arranged below the cooling shafts 9.1 and 9.2. Each of the preparation devices 32.1 and 32.2 shown has one oiler 33 and one collecting thread guide 34 per thread. Here, the oiler 33 and the collecting yarn guide 34 each form a point of convergence to the upstream spinneret 3 to wet the filament strands and merge into a thread. The oilers 33 are coupled together or separately with a fluid source, for example a metering pump. Below the preparation device 32, the Fadenumlenkeinrichtung 12 is arranged with two groups of yarn guides 13 and 14. Each group of yarn guides 13 and 14 has a plurality of rollers 13.1 and 14.1, which are arranged overlapping each other such that the threads of the yarn sheet 30 with identical wraps in the range of 90 ° to the rollers 13.1 and 14.1 are performed. The threads of the yarn sheet 30 are thus guided on the rollers 13.1 of the first group of yarn guides 13 with a wrap angle in the range of 90 °. Thus, the rollers are 13.1 and 14.1, which are assigned to one of the threads, at a substantially same working height.
Die Rollen 14.1 der zweiten Gruppe von Fadenführern 14 sind hierzu an einem V-förmigen Träger 15 mit einem Versatz übereinander zu einer V- förmigen Reihenanordnung gehalten. Die Rollen 13.1 der ersten Gruppe von Fadenführern sind dementsprechend den Rollen 14.1 zugeordnet, wo- bei die Rollen 13.1 mit den jeweilig im Fadenlauf vorgeordneten Sammel- fadenführern 34 eine vertikale Fadenlaufebene aufspannen. The rollers 14.1 of the second group of yarn guides 14 are held on a V-shaped support 15 with an offset one above the other to form a V-shaped row arrangement. The rollers 13.1 of the first group of thread guides are correspondingly assigned to the rollers 14.1, where in the case of the rollers 13.1, they span a vertical thread running plane by means of the collecting thread guides 34 which are arranged upstream of each other in the course of the thread.
Die Funktion des in Fig. 4 dargestellten Ausführungsbeispiels der erfin- dungsgemäßen Vorrichtung ist identisch zu den vorgenannten Ausführungsbeispielen, so dass auf die vorgenannte Beschreibung Bezug genommen wird. The function of the embodiment of the device according to the invention shown in FIG. 4 is identical to the aforementioned embodiments, so that reference is made to the aforementioned description.
Die in den Fig. 1 bis 4 dargestellten Ausführungsbeispiele der Fadenum- lenkeinrichtung 12 stellen mögliche Anordnungen der beiden Gruppen von Fadenführern dar, um die Fadenschar einer Vielzahl von Spinndüsen auf einen möglichst engen Fadenabstand zusammenzuführen. Die Rollen sind bevorzugt frei drehbar ausgeführt. Grundsätzlich besteht jedoch auch die Möglichkeit, zumindest eine der Gruppen von Rollen anzutreiben. Insoweit können die Spinndüsen einer Spinnstelle oder mehrerer benachbarter Spinnstellen vorteilhaft zusammengerafft und mit enger Teilung durch eine Galetteneinrichtung geführt werden. The exemplary embodiments of the thread deflection device 12 shown in FIGS. 1 to 4 represent possible arrangements of the two groups of thread guides in order to bring together the group of yarns of a plurality of spinnerets to the smallest possible thread spacing. The rollers are preferably designed to be freely rotatable. In principle, however, it is also possible to drive at least one of the groups of roles. In that regard, the spinnerets of a spinning station or several adjacent spinning stations can advantageously be gathered together and guided with a narrow pitch by a godet device.

Claims

Patentansprüche claims
Vorrichtung zum Schmelzspinnen, Abziehen und Aufwickeln einer Fadenschar mit einer Spinneinrichtung (1), die eine Reihe von mehreren Spinndüsen (3) aufweist, mit einer Galetteneinrichtung (16), die zumindest zwei antreibbare Galetten (18.1, 18.2) aufweist, mit einer Aufspuleinrichtung (21), die eine Reihe von mehreren Wickelstellen (26) aufweist, wobei die Reihe der Wickelstellen (26) orthogonal zu der Reihe der Spinndüsen (3) angeordnet ist, und mit einer zwischen der Spinneinrichtung (1) und der Galetteneinrichtung (16) angeordneten Fadenumlenkeinrichtung (12), die eine der Spinneinrichtung (1) zugeordnete erste Gruppe von Fadenführern (13) und eine der Galetteneinrichtung (16) zugeordnete zweite Gruppe von Fadenführern (14) aufweist, wobei die Fadenführer der ersten Gruppe (13) in einer horizontalen Reihe mit einem Spinnabstand nebeneinander angeordnet sind, dadurch gekennzeichnet, dass die Fadenführer der beiden Gruppen von Fadenführer (13, 14) durch frei drehbare Rollen (13.1, 14.1) gebildet sind. Device for melt-spinning, stripping and winding a group of yarns with a spinning device (1), which has a row of several spinnerets (3), with a godet device (16) which has at least two drivable godets (18.1, 18.2), with a winding device ( 21) having a series of plural winding stations (26), the series of winding stations (26) being arranged orthogonal to the row of spinning nozzles (3), and one between the spinning device (1) and the godet device (16) Thread turning device (12) having a first group of thread guides (13) associated with the spinning device (1) and a second group of thread guides (14) associated with the godet device (16), the thread guides of the first group (13) being in a horizontal row are arranged side by side with a spinning distance, characterized in that the yarn guides of the two groups of yarn guides (13, 14) by freely rotatable rollers (13 .1, 14.1) are formed.
Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Rollen (14.1) der zweiten Gruppe von Fadenführern (14) mit einem Versatz übereinander und/oder untereinander angeordnet sind. Apparatus according to claim 1, characterized in that the rollers (14.1) of the second group of thread guides (14) are arranged one above the other and / or one another with an offset.
Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Versatz zwischen den Rollen (14.1) der zweite Gruppe von Fadenführern (14) gleich einem Fadenabstand der Fäden der Fadenschar (30) am Umfang einer der Galetten (18.1, 18.2) ist. Apparatus according to claim 1 or 2, characterized in that the offset between the rollers (14.1) of the second group of yarn guides (14) is equal to a thread pitch of the threads of the yarn sheet (30) on the circumference of one of the godets (18.1, 18.2).
Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Rollen (14.1) der zweiten Gruppe von Fadenführer (14) in einem mitt- leren Bereich unterhalb der Spinneinrichtung (1) in einer umgekehrt V- förmigen Reihenanordnung gehalten sind. Apparatus according to claim 1 or 2, characterized in that the rollers (14.1) of the second group of yarn guides (14) in a Mitt- Leren area below the spinning device (1) are held in an inverted V-shaped series arrangement.
5. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Achsen der Rollen (14.1) und die Achsen der Galetten (18.1, 18.2) orthogonal zueinander ausgerichtet sind. 5. Device according to one of claims 1 to 3, characterized in that the axes of the rollers (14.1) and the axes of the godets (18.1, 18.2) are aligned orthogonal to each other.
6. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Spinndüsen (3) der Spinneinrichtung (1) von zwei neben- einander angeordneten Spinnbalken (2.1, 2.2) gehalten sind und dass die Rollen (14.1) der zweiten Gruppe von Fadenführern (14) im mittlerem Bereich zwischen den Spinnbalken (2.1, 2.2) gehalten sind. 6. Device according to one of claims 1 to 4, characterized in that the spinnerets (3) of the spinning device (1) of two juxtaposed spinning beams (2.1, 2.2) are held and that the rollers (14.1) of the second group of Thread guides (14) in the middle region between the spinning beam (2.1, 2.2) are held.
7. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Rollen (14.1) der zweiten Gruppe von Fadenführern (14) an einem oder zwei beweglichen Trägern (15, 15.1, 15.2) gehalten sind, welche jeweils zwischen einer Anlegeposition der Rollen (14.1) und einer Betriebsposition der Rollen (14.1) führbar sind. 7. The device according to claim 5, characterized in that the rollers (14.1) of the second group of thread guides (14) on one or two movable supports (15, 15.1, 15.2) are held, each between a contact position of the rollers (14.1) and an operating position of the rollers (14.1) are feasible.
8. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Träger (15.1, 15.2) jeweils mit einem Ende an einer Schwenkachse (32.1, 32.2) gehalten und in einem Winkelbereich bis zu einer Horizontalen führbar sind. 8. The device according to claim 6, characterized in that the supports (15.1, 15.2) are each held with one end on a pivot axis (32.1, 32.2) and in an angular range to a horizontal feasible.
9. Vorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass die Galetteneinrichtung (16) und die Aufspuleinrichtung (21) in einem mittleren Bereich unterhalb der Spinneinrichtung (1) angeordnet sind und dass die Galetteneinrichtung (16) an einem Stirnende der Aufspuleinrichtung (21) gehalten ist. 9. Device according to one of claims 4 to 7, characterized in that the godet device (16) and the winding device (21) are arranged in a central region below the spinning device (1) and that the godet device (16) at a front end of the winding device (21) is held.
10. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Galet- teneinrichtung (16) eine Fadenabsaugeinrichtung (19) aufweist, die den Rollen (14.1) der zweiten Gruppe von Fadenführern (14) im Fadenlauf nachgeordnet ist. 10. The device according to claim 8, characterized in that the godet teneinrichtung (16) has a Fadenabsaugeinrichtung (19), which is arranged downstream of the rollers (14.1) of the second group of yarn guides (14) in the yarn path.
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WO2015024817A1 (en) 2013-08-22 2015-02-26 Oerlikon Textile Gmbh & Co. Kg Apparatus for producing a plurality of synthetic threads

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US20200291547A1 (en) 2020-09-17
EP3433400B1 (en) 2020-02-26
CN108884596B (en) 2021-07-06
US11162194B2 (en) 2021-11-02
CN108884596A (en) 2018-11-23
WO2017162470A1 (en) 2017-09-28

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