EP2567008B1 - Process and apparatus for melt-spinning, drawing and winding multiple synthetic threads - Google Patents
Process and apparatus for melt-spinning, drawing and winding multiple synthetic threads Download PDFInfo
- Publication number
- EP2567008B1 EP2567008B1 EP11718704.7A EP11718704A EP2567008B1 EP 2567008 B1 EP2567008 B1 EP 2567008B1 EP 11718704 A EP11718704 A EP 11718704A EP 2567008 B1 EP2567008 B1 EP 2567008B1
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- European Patent Office
- Prior art keywords
- threads
- godets
- winding
- individual
- godet
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- 238000000034 method Methods 0.000 title claims description 34
- 238000004804 winding Methods 0.000 title claims description 31
- 238000002074 melt spinning Methods 0.000 title claims description 7
- 230000008569 process Effects 0.000 title description 7
- 238000009987 spinning Methods 0.000 claims description 18
- 238000002788 crimping Methods 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 12
- 238000011282 treatment Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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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
- D01D7/00—Collecting the newly-spun products
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/04—Supporting filaments or the like during their treatment
- D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
- D01D10/0463—Supporting filaments or the like during their treatment while in continuous movement the filaments being maintained parallel
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/225—Mechanical characteristics of stretching apparatus
Definitions
- the invention relates to a method for melt-spinning, drawing and winding a plurality of synthetic threads according to the preamble of claim 1 and a device for carrying out the method according to the preamble of claim 7.
- the spinnerets are held with a spinning distance to each other, so that the threads are guided within a vertical spinning distance with the spinning distance to each other.
- a smaller distance is required, so that the transition distance between the spinning device and the drawing device is used to merge the threads.
- it is necessary, in particular to deflect the threads in the outer regions of the yarn sheet.
- this results in different take-off ratios of the filaments when extruding the filament strands on the spinnerets.
- Such a method and such a device are for example from EP 0 845 550 A1 known.
- the threads after stretching and before winding led by individually driven delivery mechanisms. Although this makes it possible to even out the thread tension differences in the threads of the group of threads caused by multiple deflection.
- the different thread guides that already occur before and during stretching remain unconsidered and have a different effect immediately upon stretching of the threads on the individual side-by-side threads.
- New developments such as from the DE 10 2009 021 131 A1 are known, are based on an arrangement in which the stretching device are arranged laterally next to the spinning device, wherein between the spinneret and the drawing device per thread deflection rollers are arranged.
- the free thread line between the stretching device and the spinnerets are formed differently long for each thread. In that regard, differences are to be expected also in this process.
- This object is achieved by a method such that the threads are withdrawn independently of each other by separate Einzelgaletten after extrusion and before the collective drawing.
- the object can be achieved in that a plurality of juxtaposed individual godets of the stretching device are arranged upstream, wherein the individual godets are each assigned to one of the threads and are individually driven to deduct the respective thread.
- the invention is based on the finding that, in particular during extrusion, cooling and stretching, the processes which are decisive for determining the physical properties of the filaments are due to the solidification of the amorphous molecular structure and the crystallization.
- the molecular structure which forms on the threads during stripping thus forms the essential basis in order to achieve the desired effects with the further treatments.
- a single godet is thus assigned to each thread, which determines the respective withdrawal of the thread from the spinneret.
- the method variant is preferably used, in which the threads are withdrawn in a straight line run at the same withdrawal speeds on the individual godets.
- high and uniform throughput rates can be achieved at the spinnerets.
- the method variant has proven particularly useful, in which the threads are guided at the periphery of the single godet each with a Mehrfachumschlingung. This makes it possible to realize higher pull-off forces on each of the individual threads.
- the yarns are combined after being pulled off to form the yarn sheet and that the yarn sheet is drawn by guiding it on a plurality of draw godets arranged one behind the other.
- a collective stretching of the threads is possible.
- inventive method and the device according to the invention are particularly suitable for such threads, which after the melt spinning process be fed directly to a final processing.
- process variant in which the threads are crimped parallel to each other after drawing and before winding preferably used.
- Such crimped threads can be used advantageously as carpet yarns.
- the device according to the invention is preferably designed such that the individual godets are each assigned to the spinnerets at a distance in the middle.
- each thread and in particular the filament strands forming the thread can be removed from the spinneret with a high degree of uniformity.
- the development of the device according to the invention is provided, in which the individual godets for guiding the respective threads a plurality of rotatably mounted overflow rollers are assigned.
- each of the threads can be led with multiple wrapping on the single godet.
- a first temperature control of the thread is already possible in that the individual godets each have a heatable godet jacket.
- preliminary heating preparatory to stretching can be introduced into the thread.
- a first draw godet of the drafting means is arranged laterally next to the individual godets held in a row, wherein the draw godet on a feed side is assigned a multiple yarn guide.
- the threads can be fed together as a group of threads with a narrow treatment distance side by side of the draw godet.
- the device according to the invention is used in particular in the embodiment in which a crimping device is arranged between the stretching device and the winding device, which has a plurality of texturing means for collectively crimping the threads. This makes it advantageous to produce carpet yarns that can be presented directly to a further processing process.
- FIG. 1 a first embodiment of the device according to the invention for carrying out the method according to the invention is shown schematically in several views.
- Fig. 1 represents the embodiment in a front view and Fig. 2 schematically in a side view.
- Fig. 1 represents the embodiment in a front view
- Fig. 2 schematically in a side view.
- the embodiment according to Fig. 1 and 2 has a spinning device 1 with a total of three juxtaposed spinnerets 4.1,4.2 and 4.3.
- the number of spinnerets in the spinning device 1 is exemplary and can also significantly more than three threads per spinning position include.
- the spinnerets 4.1, 4.2 and 4.3 are held on the underside of a heated spinneret 3.
- the spinning beam 3 contains other melt-carrying parts, not shown here, in order to supply the melt supplied via an inlet 2 thermoplastic melt a melt source the spinnerets 4.1 to 4.3.
- at least one or more spinning pumps and distribution lines is arranged in the spinning beam 3.
- the spinnerets 4.1 to 4.3 have on their undersides a plurality of nozzle openings, from each of which a plurality of strand-shaped filaments are extruded.
- a cooling device 6 is arranged, which extends with a cooling shaft 7 immediately below the spinneret 4.1 to 4.3.
- the cooling device 6 is designed in this embodiment as a cross-flow blowing, in which a cooling air flow generated by means of a laterally arranged blow chamber 8 and directed to the filament strands of the threads 5.1, 5.2 and 5.3.
- a collection thread guide 9.1, 9.2 and 9.3 as well as a preparation device 10.1, 10.2 and 10.3 are arranged at a distance below the spinnerets 4.1, 4.2 and 4.3.
- the collecting thread guide 9.1, 9.2 and 9.3 are each held centrally to the spinnerets 4.1, 4.2 and 4.3.
- the group thread guide 9.1 is held centrally to the spinneret 4.1.
- the preparation devices 10.1, 10.2 and 10.3 as well as the collection thread guides 9.1, 9.2 and 9.3 can also advantageously be combined with each other so that the filament strands are brought together and the filament strands are prepared for example by a pencil oiler.
- the spinnerets 4.1, 4.2 and 4.3 are assigned a plurality of individual godets 11.1, 11.2 and 11.3, which in this exemplary embodiment each combine with an overflow roller 12.1, 12.2 and 12.3 are.
- the individual godets 11.1, 11.2 and 11.3 are held at a distance substantially centrally to the respective upstream spinnerets 4.1, 4.2 and 4.3.
- the threads 5.1, 5.2 and 5.3 can each be deducted vertically in the straight yarn path of the spinnerets 4.1, 4.2 and 4.3 through the individual godets 11.1, 11.2 and 11.3.
- the individual godet 11.1 is associated with the spinneret 4.1, which extrudes the filament strands to the yarn 5.1.
- each individual godet 11.1 to 11.3 and the overflow rollers 12.1 to 12.3 are held cantilevered on a machine frame 25, wherein each individual godet 11.1 to 11.3 is associated with a drive 23.
- the drives 23 in Fig. 2 if only one of the drives is shown, the individual godets 11.1, 11.2 and 11.3 are driven independently of each other.
- the drives 23 can be controlled by individual control units or by a common control unit.
- the individual godets 11.1 to 11.3 are arranged in a row next to each other.
- a first draw godet 14.1 of a drawing device 13 is arranged laterally next to the single godet 11.3.
- a multiple yarn guide 15 is arranged, which merges the running of the individual godets 11.1 to 11.3 threads 5.1 to 5.3 to a yarn sheet 29.
- the threads 5.1 to 5.3 have a substantially short treatment distance from each other.
- the drawing device 13 has a plurality of draw godets 14.1 to 14.4 for collective drawing of the yarns 5.1 to 5.3, with two draw godets 14.1 and 14.2 as well as 14.3 and 14.4 forming a godet pair on which the yarns are passed in multiple wrapping.
- the draw godets 14.3 and 14.4 are driven with respect to the draw godets 14.1 and 14.2 at a higher peripheral speed, so that the threads between the draw godets 14.2 and 14.3 are stretched.
- each of the draw godets 14.1 to 14.4 is assigned a separate drive.
- Fig. 2 only the drives 24.1 and 24.2 of the first two draw godets 14.1 and 14.2 are shown.
- the draw godets 14.1 to 14.4 are in this case preferably designed with heated godet coats.
- a winding device 17 which has a plurality of winding points 18.1, 18.2 and 18.3.
- the yarns guided as yarns 5.1, 5.2 and 5.3 are wound parallel to each other to form coils 21.1, 21.2 and 21.3.
- the winding device 17 has for this purpose two winding spindles 19.1 and 19.2, on which alternately the coils 21.1, 21.2 and 21.3 are wound.
- the winding spindles 19.1 and 19.2 are arranged cantilevering on a winding turret 20, which alternately pivots the winding spindles for continuous winding of the threads between an operating region and a change region.
- the inventive method and device according to the invention is particularly advantageous to produce high quality threads in a melt spinning process, which can be used directly for further processing.
- Fig. 3 and 4 a further preferred embodiment of the invention shown in which after the drawing of the threads, a crimping is produced on the threads.
- the embodiment according to Fig. 3 and 4 is substantially identical to the aforementioned embodiment, so that at this point only the differences will be explained and otherwise referred to the aforementioned description.
- a crimping device 26 is disposed between the drawing device 13 and the winding device 17.
- the crimping device 26 has a plurality of texturing means 27 in order to texture the drawn threads 5.1 to 5.3 parallel to each other as a group of threads.
- texturing 27 for example, texturing can be used, which consist of a delivery nozzle and a stuffer box.
- each of the threads is 5.1 to 5.3 registeredstaucht to a yarn plug 30.1 to 30.3.
- Such crimping devices are generally known, so that no further explanation takes place at this point.
- the crimping device 26 comprises a cooling roller 28, on the circumference of three thread running tracks for receiving the yarn plugs 30.1 to 30.3 are formed. At the periphery of the cooling roller 28, the yarn plugs 30.1 to 30.3 are cooled.
- the cooling roller 28 is driven by a roller drive 33.
- the yarn plugs 30.1 to 30.2 are dissolved after the crimping to the threads 5.1 to 5.3 and withdrawn collectively from the chill roll 28 by a Abzugsgalette 31.1.
- the withdrawal godet 31.1 which is also combined with an overflow roll, is followed by another withdrawal godet 31.2, wherein between the withdrawal godets 31.1 and 31.2 a swirling device 32 is held.
- the withdrawal godets 31.1 and 31.2 are driven independently of each other, wherein in Fig. 4 only the drive 34 of the withdrawal godet 31.1 is shown.
- the turbulizer 32 has to treat the yarn sheet 29 three separate treatment channels, in which each of the threads 5.1, 5.2 and 5.3 are individually swirled.
- the method according to the invention and the device according to the invention are thus particularly advantageous in order to enable an individual withdrawal of the threads with subsequent collective treatment and joint use of the following devices.
- the in the Fig. 1 to 4 show only exemplary some embodiments of the invention.
- the threads drawn from the individual godets can also be formed from a plurality of filament bundles. It is essential here that the yarn guided and treated in the yarn sheet is previously removed individually during extrusion and cooling.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
Die Erfindung betrifft ein Verfahren zum Schmelzspinnen, Verstrecken und Aufwickeln mehrerer synthetischer Fäden gemäß dem Oberbegriff des Anspruchs 1 sowie eine Vorrichtung zur Durchführung des Verfahrens gemäß dem Oberbegriff des Anspruchs 7.The invention relates to a method for melt-spinning, drawing and winding a plurality of synthetic threads according to the preamble of
Bei der Herstellung von synthetischen Fäden in einem Schmelzspinnprozess ist es üblich, dass in einer Spinnposition mehrere Fäden parallel nebeneinander extrudiert, abgekühlt, verstreckt und zu Spulen aufgewickelt werden. Die Fäden werden nach der Extrusion als eine Fadenschar geführt und kollektiv durch Galetten verstreckt und mittels einer Aufwickeleinrichtung mit mehreren Wickelstellen kollektiv zu Spulen aufgewickelt. Damit die Mehrzahl der Fäden gleichzeitig durch eine Galetten von den Spinndüsen abgezogen werden können, ist es weiterhin üblich, die Fäden in einer ersten Übergangsstrecke auf einen kleineren Fadenabstand zueinander zusammenführen. Beim Extrudieren und Abkühlen sind die Spinndüsen mit einem Spinnabstand zueinander gehalten, so dass die Fäden innerhalb einer vertikalen Spinnstrecke mit dem Spinnabstand zueinander geführt werden. Zur kollektiven Führung der Fäden an den Galetten ist ein kleinerer Abstand erforderlich, so dass die Übergangsstrecke zwischen der Spinneinrichtung und der Verstreckeinrichtung zum Zusammenführen der Fäden genutzt wird. Dazu ist es erforderlich, insbesondere die Fäden in den äußeren Bereichen der Fadenschar auszulenken. Zudem ergeben sich somit unterschiedliche Abzugsverhältnisse der Fäden beim Extrudieren der Filamentstränge an den Spinndüsen.In the production of synthetic threads in a melt spinning process, it is common that in a spinning position several threads are extruded, cooled, stretched and wound into coils in parallel side by side. The filaments are fed after extrusion as a group of threads and collectively stretched by godets and wound by means of a winding device with multiple winding points collectively to form coils. So that the majority of the threads can be pulled off at the same time by a godet from the spinnerets, it is also common practice to merge the threads in a first transition distance to a smaller thread distance to each other. During extrusion and cooling, the spinnerets are held with a spinning distance to each other, so that the threads are guided within a vertical spinning distance with the spinning distance to each other. For the collective guidance of the threads on the godets a smaller distance is required, so that the transition distance between the spinning device and the drawing device is used to merge the threads. For this purpose, it is necessary, in particular to deflect the threads in the outer regions of the yarn sheet. In addition, this results in different take-off ratios of the filaments when extruding the filament strands on the spinnerets.
Ein derartiges Verfahren und eine derartige Vorrichtung sind beispielsweise aus der
Derartige Nachteile bei der Herstellung von mehreren synthetischen Fäden parallel nebeneinander lassen sich nur dadurch gänzlich vermeiden, indem jeder einzelne Faden separat und unabhängig voneinander abgezogen, verstreckt und zu Spulen aufgewickelt wird. Ein derartiges Verfahren und eine derartige Vorrichtung sind beispielsweise aus der
Neu Entwicklungen, wie beispielsweise aus der
Es ist nun Aufgabe der Erfindung ein Verfahren zum Schmelzspinnen, Verstrecken und Aufwickeln mehrerer synthetischer Fäden sowie eine Vorrichtung zur Durchführung des Verfahrens der gattungsgemäßen Art bereitzustellen, bei welchem die Fäden mit möglichst hoher Gleichmäßigkeit auch bei kollektiver Verstreckung herstellbar sind.It is an object of the invention to provide a method for melt-spinning, drawing and winding a plurality of synthetic threads and a device for carrying out the method of the generic type, in which the threads are produced with the highest possible uniformity even with collective stretching.
Diese Aufgabe wird erfindungsgemäß durch ein Verfahren derart gelöst, das die Fäden nach der Extrusion und vor der kollektiven Verstreckung unabhängig voneinander durch separate Einzelgaletten abgezogen werden.This object is achieved by a method such that the threads are withdrawn independently of each other by separate Einzelgaletten after extrusion and before the collective drawing.
Bei der Vorrichtung lässt sich die Aufgabe dadurch lösen, dass mehrere nebeneinander angeordnete Einzelgaletten der Verstreckeinrichtung vorgeordnet sind, wobei die Einzelgaletten jeweils einem der Fäden zugeordnet und zum Abzug des betreffenden Fadens einzeln antreibbar ausgebildet sind.In the apparatus, the object can be achieved in that a plurality of juxtaposed individual godets of the stretching device are arranged upstream, wherein the individual godets are each assigned to one of the threads and are individually driven to deduct the respective thread.
Vorteilhafte Weiterbildungen der Erfindung sind durch die Merkmale und Merkmalskombinationen der jeweiligen Unteransprüche definiert.Advantageous developments of the invention are defined by the features and feature combinations of the respective subclaims.
Die Erfindung beruht auf der Erkenntnis, dass insbesondere beim Extrudieren, Abkühlen und Verstrecken die zur Bestimmung der physikalischen Eigenschaften der Fäden maßgeblichen Vorgänge aufgrund der Verfestigung der amorphen Molekularstruktur sowie der Kristallisation ablaufen. Die beim Abziehen sich an den Fäden einstellende Molekularstruktur bildet somit die wesentliche Basis, um mit den Weiterbehandlungen die gewünschten Effekte zu erreichen. Erfindungsgemäß wird somit jedem Faden eine Einzelgalette zugeordnet, die den jeweiligen Abzug des Fadens von der Spinndüse bestimmt. Damit können unabhängig von der Anzahl der pro Spinnposition erzeugten Fäden jeder der Fäden mit wesentlichen identischen Eigenschaften abgezogen und der nachfolgenden kollektiven Verstreckung zugeführt werden.The invention is based on the finding that, in particular during extrusion, cooling and stretching, the processes which are decisive for determining the physical properties of the filaments are due to the solidification of the amorphous molecular structure and the crystallization. The molecular structure which forms on the threads during stripping thus forms the essential basis in order to achieve the desired effects with the further treatments. According to the invention, a single godet is thus assigned to each thread, which determines the respective withdrawal of the thread from the spinneret. Thus, regardless of the number of threads produced per spinning position, each of the threads with substantially identical properties are subtracted and fed to the subsequent collective stretching.
Hierzu wird die Verfahrensvariante bevorzugt eingesetzt, bei welchem die Fäden in einem geraden Fadenlauf mit jeweils gleichen Abzugsgeschwindigkeiten an den Einzelgaletten abgezogen werden. Damit lassen sich zudem hohe und gleichmäßige Durchsatzleistungen an den Spinndüsen erreichen.For this purpose, the method variant is preferably used, in which the threads are withdrawn in a straight line run at the same withdrawal speeds on the individual godets. In addition, high and uniform throughput rates can be achieved at the spinnerets.
Zur Herstellung von Fäden mit größeren Fadentitern hat sich die Verfahrensvariante besonders bewährt, bei welcher die Fäden am Umfang der Einzelgalette jeweils mit einer Mehrfachumschlingung geführt werden. Damit lassen sich höhere Abzugskräfte an jedem der einzelnen Fäden realisieren.To produce threads with larger thread tiers, the method variant has proven particularly useful, in which the threads are guided at the periphery of the single godet each with a Mehrfachumschlingung. This makes it possible to realize higher pull-off forces on each of the individual threads.
Damit die nachfolgenden Behandlungen des Fadens für alle Fäden gemeinschaftlich durchgeführt werden können, ist desweiteren vorgesehen, dass die Fäden nach dem Abziehen zu der Fadenschar zusammengeführt werden und dass die Fadenschar durch Führung an mehreren hintereinander angeordneten Streckgaletten verstreckt werden. Damit ist eine kollektive Verstreckung der Fäden möglich.In order for the subsequent treatments of the yarn to be carried out jointly for all yarns, it is further provided that the yarns are combined after being pulled off to form the yarn sheet and that the yarn sheet is drawn by guiding it on a plurality of draw godets arranged one behind the other. Thus, a collective stretching of the threads is possible.
Um möglichst geringe Fadenabstände zwischen den einzelnen Fäden der Fadenschar einhalten zu können, ist eine sichere Führung der Fäden erforderlich. Diese wird insbesondere durch die Verfahrensvariante erreicht, bei welcher die erste Streckgalette mit einer Umfangsgeschwindigkeit angetrieben wird, die gleich oder größer der Abzugsgeschwindigkeit der Einzelgalette ist. Bevorzugt wird eine leichte Verstreckung zwischen den Abzugsgaletten und der Streckgalette eingestellt. Je nach Fadentyp und Prozess können dabei die Fäden unmittelbar an den Einzelgaletten temperiert werden.In order to comply with the smallest possible thread intervals between the individual threads of the group of threads, a secure guidance of the threads is required. This is achieved in particular by the variant of the method in which the first draw godet is driven at a circumferential speed which is equal to or greater than the draw speed of the single godet. Preferably, a slight stretch between the withdrawal godets and the draw godet is set. Depending on the thread type and process, the threads can be tempered directly to the individual godets.
Das erfindungsgemäße Verfahren und die erfindungsgemäße Vorrichtung sind insbesondere für derartige Fäden geeignet, die nach dem Schmelzspinnprozess unmittelbar einer Endverarbeitung zugeführt werden. So wird die Verfahrensvariante, bei welcher die Fäden nach dem Verstrecken und vor dem Aufwickeln parallel nebeneinander gekräuselt werden, bevorzugt eingesetzt. Derartige gekräuselte Fäden lassen sich vorteilhaft als Teppichgarne verwenden.The inventive method and the device according to the invention are particularly suitable for such threads, which after the melt spinning process be fed directly to a final processing. Thus, the process variant in which the threads are crimped parallel to each other after drawing and before winding, preferably used. Such crimped threads can be used advantageously as carpet yarns.
Um einen geraden Fadenlauf beim Abziehen der Fäden zu realisieren, ist die erfindungsgemäße Vorrichtung bevorzugt derart ausgeführt, dass die Einzelgaletten den Spinndüsen jeweils mit Abstand mittig zugeordnet sind. So lässt sich jeder Faden und insbesondere die den Faden bildenden Filamentstränge mit hoher Gleichmäßigkeit aus der Spinndüse abziehen.In order to realize a straight thread run when removing the threads, the device according to the invention is preferably designed such that the individual godets are each assigned to the spinnerets at a distance in the middle. Thus, each thread and in particular the filament strands forming the thread can be removed from the spinneret with a high degree of uniformity.
Zur Erzeugung höherer Abzugskräfte ist die Weiterbildung der erfindungsgemäßen Vorrichtung vorgesehen, bei welcher den Einzelgaletten zur Führung der betreffenden Fäden mehrere drehbar gelagerte Überlaufrollen zugeordnet sind. So lässt sich jeder der Fäden mit mehrfacher Umschlingung an der Einzelgalette führen.To generate higher withdrawal forces, the development of the device according to the invention is provided, in which the individual godets for guiding the respective threads a plurality of rotatably mounted overflow rollers are assigned. Thus, each of the threads can be led with multiple wrapping on the single godet.
Je nach Verfahren und Fadentyp ist bereits eine erste Temperierung des Fadens dadurch möglich, dass die Einzelgaletten jeweils einen beheizbaren Galettenmantel aufweisen. Insbesondere bei der Mehrfachumschlingung lassen sich somit bereits für das Verstrecken vorbereitende Erwärmungen in den Faden einbringen.Depending on the method and thread type, a first temperature control of the thread is already possible in that the individual godets each have a heatable godet jacket. Thus, in particular in the case of multiple wrapping, preliminary heating preparatory to stretching can be introduced into the thread.
Um einerseits niedrige Bauhöhen der Gesamtvorrichtung und andererseits geringe Auslenkungen zu erhalten, ist gemäß einer besonders vorteilhaften Weiterbildung der erfindungsmäßen Vorrichtung, eine erste Streckgalette der Verstreckeinrichtung seitlich neben den in einer Reihe gehaltenen Einzelgaletten angeordnet, wobei der Streckgalette auf einer Zulaufseite eine Mehrfachfadenführung zugeordnet ist. Damit können die Fäden gemeinsam als eine Fadenschar mit engem Behandlungsabstand nebeneinander der Streckgalette zugeführt werden.On the one hand, to obtain low heights of the overall apparatus and, on the other hand, small deflections, according to a particularly advantageous development of the apparatus according to the invention, a first draw godet of the drafting means is arranged laterally next to the individual godets held in a row, wherein the draw godet on a feed side is assigned a multiple yarn guide. Thus, the threads can be fed together as a group of threads with a narrow treatment distance side by side of the draw godet.
Die erfindungsgemäße Vorrichtung wird insbesondere in der Ausführungsform verwendet, bei welcher zwischen der Verstreckeinrichtung und der Aufwickeleinrichtung eine Kräuseleinrichtung angeordnet ist, die mehrere Texturiermittel zum kollektiven Kräuseln der Fäden aufweist. Damit lassen sich vorteilhaft Teppichgarne herstellen, die unmittelbar einem Weiterverarbeitungsprozess vorgelegt werden können.The device according to the invention is used in particular in the embodiment in which a crimping device is arranged between the stretching device and the winding device, which has a plurality of texturing means for collectively crimping the threads. This makes it advantageous to produce carpet yarns that can be presented directly to a further processing process.
Das erfindungsgemäße Verfahren sowie die erfindungsgemäße Vorrichtung sind nachfolgend anhand einiger Ausführungsbeispiele gemäß den beigefügten Figuren näher erläutert.The method according to the invention and the device according to the invention are explained in more detail below on the basis of some embodiments according to the attached figures.
Es stellen dar:
- Fig. 1
- schematisch eine Vorderansicht eines ersten Ausführungsbeispiels der erfindungsgemäßen Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens
- Fig. 2
- schematisch eine Seitenansicht des Ausführungsbeispiels aus
Fig. 1 - Fig. 3
- schematisch eine Draufsicht eines weiteren Ausführungsbeispiels der erfindungsgemäßen Vorrichtung
- Fig. 4
- schematisch eine Seitenansicht des Ausführungsbeispiels aus
Fig. 3
- Fig. 1
- schematically a front view of a first embodiment of the device according to the invention for carrying out the method according to the invention
- Fig. 2
- schematically a side view of the embodiment of
Fig. 1 - Fig. 3
- schematically a plan view of another embodiment of the device according to the invention
- Fig. 4
- schematically a side view of the embodiment of
Fig. 3
In den
Das Ausführungsbeispiel nach
Unterhalb des Spinnbalkens 3 ist eine Kühleinrichtung 6 angeordnet, der mit einem Kühlschacht 7 sich unmittelbar unterhalb der Spinndüse 4.1 bis 4.3 erstreckt. Die Kühleinrichtung 6 ist in diesem Ausführungsbeispiel als Querstromanblasung ausgeführt, bei welcher ein Kühlluftstrom mittels einer seitlich angeordneten Blaskammer 8 erzeugt und auf die Filamentstränge der Fäden 5.1, 5.2 und 5.3 gerichtet ist.Below the
Um die Vielzahl der pro Spinndüse 4.1 bis 4.3 erzeugten Filamentstränge zu jeweils einem Faden zusammenzuführen, ist im Abstand unterhalb der Spinndüsen 4.1, 4.2 und 4.3 jeweils ein Sammelfadenführer 9.1, 9.2 und 9.3 sowie eine Präparationseinrichtung 10.1, 10.2 und 10.3 angeordnet. Die Sammelfadenführe 9.1, 9.2 und 9.3 sind jeweils mittig zu den Spinndüsen 4.1, 4.2 und 4.3 gehalten. So ist der Sammelfadenführer 9.1 mittig zur Spinndüse 4.1 gehalten.In order to combine the multiplicity of filament strands produced per spinneret 4.1 to 4.3 into one thread in each case, a collection thread guide 9.1, 9.2 and 9.3 as well as a preparation device 10.1, 10.2 and 10.3 are arranged at a distance below the spinnerets 4.1, 4.2 and 4.3. The collecting thread guide 9.1, 9.2 and 9.3 are each held centrally to the spinnerets 4.1, 4.2 and 4.3. Thus, the group thread guide 9.1 is held centrally to the spinneret 4.1.
An dieser Stelle sei ausdrücklich erwähnt, dass die Präparationseinrichtungen 10.1, 10.2 und 10.3 sowie die Sammelfadenführer 9.1, 9.2 und 9.3 auch vorteilhaft miteinander kombiniert werden können, so dass das Zusammenführen der Filamentstränge und das Präparieren der Filamentstränge beispielsweise durch einen Stiftöler erfolgt.It should be expressly mentioned at this point that the preparation devices 10.1, 10.2 and 10.3 as well as the collection thread guides 9.1, 9.2 and 9.3 can also advantageously be combined with each other so that the filament strands are brought together and the filament strands are prepared for example by a pencil oiler.
Im weiteren Fadenverlauf sind den Spinndüsen 4.1, 4.2 und 4.3 mehrere Einzelgaletten 11.1, 11.2 und 11.3 zugeordnet, die in diesem Ausführungsbeispiel mit jeweils einer Überlaufrolle 12.1, 12.2 und 12.3 kombiniert sind. Die Einzelgaletten 11.1, 11.2 und 11.3 sind im Abstand im Wesentlichen mittig zu den jeweils vorgeordneten Spinndüsen 4.1, 4.2 und 4.3 gehalten. Somit lassen sich die Fäden 5.1, 5.2 und 5.3 jeweils vertikal im geraden Fadenlauf von den Spinndüsen 4.1, 4.2 und 4.3 durch die Einzelgaletten 11.1, 11.2 und 11.3 abziehen. So ist die Einzelgalette 11.1 der Spinndüse 4.1 zugeordnet, welche die Filamentstränge zu dem Faden 5.1 extrudiert.In the further course of the thread, the spinnerets 4.1, 4.2 and 4.3 are assigned a plurality of individual godets 11.1, 11.2 and 11.3, which in this exemplary embodiment each combine with an overflow roller 12.1, 12.2 and 12.3 are. The individual godets 11.1, 11.2 and 11.3 are held at a distance substantially centrally to the respective upstream spinnerets 4.1, 4.2 and 4.3. Thus, the threads 5.1, 5.2 and 5.3 can each be deducted vertically in the straight yarn path of the spinnerets 4.1, 4.2 and 4.3 through the individual godets 11.1, 11.2 and 11.3. Thus, the individual godet 11.1 is associated with the spinneret 4.1, which extrudes the filament strands to the yarn 5.1.
Wie aus der
Wie aus der Darstellung in
Die Verstreckeinrichtung 13 weist zum kollektiven Verstrecken der Fäden 5.1 bis 5.3 mehrere Streckgaletten 14.1 bis 14.4 auf, wobei jeweils zwei Streckgaletten 14.1 und 14.2 sowie 14.3 und 14.4 ein Galettenduo bilden, an welchem die Fäden in mehrfacher Umschlingung geführt sind. Die Streckgaletten 14.3und 14.4 werden gegenüber den Streckgaletten 14.1 und 14.2 mit höherer Umfangsgeschwindigkeit angetrieben, so dass die Fäden zwischen den Streckgaletten 14.2 und 14.3 verstreckt werden.The
Hierzu ist jeder Streckgaletten 14.1 bis 14.4 ein separater Antrieb zugeordnet. In
Unterhalb der Verstreckeinrichtung 13 ist eine Aufwickeleinrichtung 17 angeordnet, die mehrere Wickelstellen 18.1, 18.2 und 18.3 aufweist. In jeder der Wickelstellen 18.1, 18.2 und 18.3 werden die als Fadenschar geführten Fäden 5.1, 5.2 und 5.3 parallel nebeneinander zu Spulen 21.1, 21.2 und 21.3 aufgewickelt. Die Aufwickeleinrichtung 17 weist hierzu zwei Spulspindeln 19.1 und 19.2 auf, an denen abwechselnd die Spulen 21.1, 21.2 und 21.3 gewickelt werden. Die Spulspindeln 19.1 und 19.2 sind an einem Spulrevolver 20 auskragend angeordnet, welcher die Spulspindeln zum kontinuierlichen Aufwickeln der Fäden abwechselnd zwischen einem Betriebsbereich und einem Wechselbereich verschwenkt.Below the
Die Zuführung der Fadenschar 29 zu der Aufwickeleinrichtung 17 erfolgt über eine Umlenkrolle 16, die der Verstreckeinrichtung 13 nachgeordnet ist.The supply of the
Bei dem in
Insoweit ist das erfindungsgemäße Verfahren und die erfindungsgemäße Vorrichtung besonders vorteilhaft, um qualitativ hochwertige Fäden in einem Schmelzspinnprozess zu erzeugen, die unmittelbar zur Weiterbearbeitung verwendet werden können. So ist in
Bei dem in
Wie aus der Darstellung in
Das erfindungsgemäße Verfahren und die erfindungsgemäße Vorrichtung sind somit besonders vorteilhaft, um einen individuellen Abzug der Fäden bei nachfolgender kollektiven Behandlung und gemeinschaftlicher Nutzung der nachfolgenden Einrichtungen zu ermöglichen. Die in den
- 11
- Spinneinrichtungspinner
- 22
- ZulaufIntake
- 33
- Spinnbalkenspinning beam
- 4.1, 4.2, 4.34.1, 4.2, 4.3
- Spinndüsespinneret
- 5.1, 5.2, 5.35.1, 5.2, 5.3
- Fadenthread
- 66
- Kühleinrichtungcooling device
- 77
- Kühlschachtcooling shaft
- 88th
- Blaskammerpuffer
- 9.1, 9.2, 9.39.1, 9.2, 9.3
- SammelfadenführerCollecting yarn guides
- 10.1, 10.2, 10.310.1, 10.2, 10.3
- Präparationseinrichtungpreparation device
- 11.1, 11.2, 11.311.1, 11.2, 11.3
- EinzelgaletteEinzelgalette
- 12.1, 12.2, 12.312.1, 12.2, 12.3
- ÜberlaufrolleGuide roll
- 1313
- Verstreckeinrichtungdrawing device
- 14.1, 14.2, 14.3, 14.414.1, 14.2, 14.3, 14.4
- Streckgalettegodet
- 1515
- MehrfachfadenführerMultiple yarn guides
- 1616
- Umlenkrolleidler pulley
- 1717
- Aufwickeleinrichtungtakeup
- 18.1, 18.2, 18.318.1, 18.2, 18.3
- Wickelstellenwinding positions
- 19.1, 19.219.1, 19.2
- Spulspindelnspindles
- 2020
- Spulrevolverspindle turret
- 21.1, 21.2, 21.321.1, 21.2, 21.3
- SpulenDo the washing up
- 2323
- Antrieb der EinzelgalettenDrive the single godets
- 24.1, 24.224.1, 24.2
- Antrieb der StreckgalettenDrive the draw godets
- 2525
- Maschinengestellmachine frame
- 2626
- Kräuseleinrichtungcrimping
- 2727
- Texturiermitteltexturing
- 2828
- Kühlwalzechill roll
- 2929
- Fadenscharyarn sheet
- 3030
- Fadenstopfenyarn plug
- 31.1, 31.231.1, 31.2
- Abzugsgalettegodet
- 3232
- Verwirbelungseinrichtungswirling
- 3333
- Walzenantriebroller drive
- 3434
- Antrieb der AbzugsgaletteDrive the deduction godet
Claims (12)
- A method for melt-spinning, drawing, and winding multiple synthetic threads, in which after extrusion of fine filament strands the synthetic threads are spun, cooled and pulled of parallel to one another, and in which the threads are drawn collectively as a sheet of strands and wound to bobbins, characterized in that after the extrusion and before the collective drawing, the threads are pulled off independently by separate individual godets.
- The method according to claim 1, characterized in that the threads are drawn in a straight thread path, each with the same take-off speed at the individual godets.
- The method of claim 1 or 2, characterized in that the threads are guided on the periphery of the individual godets, each with a multiple wrap.
- The method according to one of claims 1 to 3, characterized in that after being pulled off, the threads are merged into a sheet of strands, and that the sheet of strands is drawn by being guided on a plurality of successively arranged godets.
- The method according to claim 4, characterized in that the first drawing godet is driven at a peripheral speed that is equal to or greater than the pull-off speed of the individual godets.
- The method according to one of claims 1 to 5, characterized in that after the drawing and before the winding-up, the threads are crimped parallel to each other.
- An apparatus for carrying out the method according to one of claims 1 to 6, comprising a spinning device (1), which has a plurality of spinnerets (4.1, 4.2, 4.3) for extruding a plurality of filaments strands per thread (5.1, 5.2, 5.3), with a drawing device (13), which comprises a number of godets (14.1, 14.2, 14.3, 14.4) that are arranged after each other for the collective drawing of the threads, and with a winding device (17), which comprises a plurality of winding positions (18.1, 18.2, 18.3) for the collective winding of the threads to a plurality of bobbins (21.1, 21.2, 21.3), characterized in that several juxtaposed individual godets (11.1, 11.2, 11.3) are arranged upstream the drawing device (13), each of said individual godets (11.1, 11.2, 11.3) being associated with one of the threads (5.1, 5.2, 5.3) and being formed individually drivable to pull off the respective thread.
- The apparatus according to claim 7, characterized in that the individual godets (11.1, 11.2, 11.3) are associated with the spinnerets (4.1, 4.2, 30 4.3) at a distance and in a centered position.
- The apparatus according to claim 7 or 8, characterized in that each of the individual godets (11.1, 11.2, 11.3) for guiding the threads is associated with a rotatably mounted overtravel rollers (12.1, 12.2, 12.3).
- The apparatus according to claim 9, characterized in that each of the individual godets (11.1, 11.2, 11.3) comprise a heated godet shell.
- The apparatus according to one of claims 7 to 10, characterized in that a first drawing godet (14.1) of the drawing device (13) is arranged laterally adjacent to the individual godets (11.1, 11.2, 11.3) held in a series, and that the first drawing godet (14.1) is associated on its inlet side with a multiple thread guide (15).
- The apparatus according to one of claims 7 to 11, characterized in that between the drawing device (13) and the winding device (17), a crimping device (26) is arranged that comprises several texturing means (27) for collective crimping of the threads.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102010019696 | 2010-05-07 | ||
PCT/EP2011/057002 WO2011138302A1 (en) | 2010-05-07 | 2011-05-03 | Process and apparatus for melt-spinning, drawing and winding multiple synthetic threads |
Publications (2)
Publication Number | Publication Date |
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EP2567008A1 EP2567008A1 (en) | 2013-03-13 |
EP2567008B1 true EP2567008B1 (en) | 2014-01-15 |
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ID=44246282
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Application Number | Title | Priority Date | Filing Date |
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EP11718704.7A Active EP2567008B1 (en) | 2010-05-07 | 2011-05-03 | Process and apparatus for melt-spinning, drawing and winding multiple synthetic threads |
Country Status (6)
Country | Link |
---|---|
US (1) | US9243348B2 (en) |
EP (1) | EP2567008B1 (en) |
CN (1) | CN102884230B (en) |
BR (1) | BR112012027642A2 (en) |
RU (1) | RU2534897C2 (en) |
WO (1) | WO2011138302A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2019096625A1 (en) | 2017-11-17 | 2019-05-23 | Oerlikon Textile Gmbh & Co. Kg | Melt spinning device |
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CN103510176A (en) * | 2013-09-09 | 2014-01-15 | 张家港市荣昌涤纶毛条有限公司 | Filament guiding device in polyester filament winding machine |
WO2015135794A1 (en) * | 2014-03-08 | 2015-09-17 | Oerlikon Textile Gmbh & Co. Kg | Method and device for melt-spinning, drawing, crimping and winding multiple threads |
CN104805616B (en) * | 2015-04-13 | 2017-01-25 | 上海海事大学 | Forming device |
CN105332073B (en) * | 2015-11-02 | 2017-11-10 | 北京中丽制机工程技术有限公司 | A kind of three component fully drawn yarn spinning systems |
CN105525374B (en) * | 2015-11-02 | 2017-12-19 | 北京中丽制机工程技术有限公司 | A kind of bi-component fully drawn yarn spinning system |
CN109825886A (en) * | 2019-01-22 | 2019-05-31 | 桐昆集团浙江恒盛化纤有限公司 | A kind of method of the scoreboard transformation of the winding apparatus of energy efficiency |
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US4042662A (en) * | 1970-05-13 | 1977-08-16 | Akzona Incorporated | Continuous melt spinning and drawing of nylon 6 yarn, while reducing the liveliness of the yarn |
DE2204535B2 (en) * | 1972-02-01 | 1976-06-24 | Barmag Banner Maschinenfabrik AG, 5600 Wuppertal | MELT SPINNING AND STRETCHING PROCESSES FOR THE MANUFACTURE OF POLYESTER FIBERS |
US4522774A (en) * | 1981-06-11 | 1985-06-11 | Badische Corporation | Integrated process for the production of textured polycaprolactam multifilament yarn |
IT1203862B (en) | 1987-04-06 | 1989-02-23 | Paolo Bert | CONTINUOUS SPINNING AND STRETCHING PROCESS OF SYNTHETIC YARNS AND RELATED PRODUCTION PLANT |
RU2074909C1 (en) * | 1993-12-27 | 1997-03-10 | Акционерное общество "Машиностроительное объединение им.Карла Маркса по выпуску оборудования для производства химических волокон" | Apparatus for oriented drawing of continuously moving thread |
EP0845550B1 (en) | 1996-12-02 | 2004-03-24 | B a r m a g AG | Process and devices for spinning and winding up a yarn |
US6447703B1 (en) * | 2000-06-22 | 2002-09-10 | Basf Corporation | Processes and systems for making synthetic bulked continuous filament yarns |
DE10236826A1 (en) * | 2002-08-10 | 2004-04-22 | Saurer Gmbh & Co. Kg | Method and device for spinning and texturing a multifilament composite process |
US7585445B2 (en) * | 2002-09-26 | 2009-09-08 | Saurer Gmbh & Co., Kg | Method for producing high tenacity polypropylene fibers |
EP1594785B1 (en) * | 2003-02-21 | 2006-06-28 | Saurer GmbH & Co. KG | Device for producing and winding synthetic threads |
DE102005052857A1 (en) * | 2005-11-07 | 2007-05-10 | Saurer Gmbh & Co. Kg | A process for producing core-sheath staple fibers having a three-dimensional crimp, and such a core-sheath staple fiber |
DE102007003949A1 (en) * | 2006-02-10 | 2007-08-23 | Saurer Gmbh & Co. Kg | Producing melt-spun tow by gathering filament bundles together and depositing the resulting tow in the cans of a can creel comprises conveying the tow to a separate waste can during process startup or interruption |
CN101016656A (en) * | 2006-02-10 | 2007-08-15 | 苏拉有限及两合公司 | Method and device for producing and storing tows |
DE102009021131A1 (en) | 2008-05-30 | 2009-12-03 | Oerlikon Textile Gmbh & Co. Kg | Device for melt-spinning and rolling of threads utilized for e.g. textile applications, has collective thread guides at which threads are guided parallel to each other with distance and with partial looping of greater than specific degree |
-
2011
- 2011-05-03 WO PCT/EP2011/057002 patent/WO2011138302A1/en active Application Filing
- 2011-05-03 BR BR112012027642A patent/BR112012027642A2/en not_active IP Right Cessation
- 2011-05-03 RU RU2012152542/12A patent/RU2534897C2/en not_active IP Right Cessation
- 2011-05-03 CN CN201180022935.4A patent/CN102884230B/en active Active
- 2011-05-03 EP EP11718704.7A patent/EP2567008B1/en active Active
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2012
- 2012-10-30 US US13/663,638 patent/US9243348B2/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019096625A1 (en) | 2017-11-17 | 2019-05-23 | Oerlikon Textile Gmbh & Co. Kg | Melt spinning device |
Also Published As
Publication number | Publication date |
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CN102884230A (en) | 2013-01-16 |
RU2012152542A (en) | 2014-06-20 |
US20130049253A1 (en) | 2013-02-28 |
RU2534897C2 (en) | 2014-12-10 |
BR112012027642A2 (en) | 2019-09-24 |
CN102884230B (en) | 2015-06-17 |
EP2567008A1 (en) | 2013-03-13 |
WO2011138302A1 (en) | 2011-11-10 |
US9243348B2 (en) | 2016-01-26 |
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