EP1995200B2 - Method and device for operating a winding device of a textile machine which produces crosswound bobbins - Google Patents
Method and device for operating a winding device of a textile machine which produces crosswound bobbins Download PDFInfo
- Publication number
- EP1995200B2 EP1995200B2 EP08007077.4A EP08007077A EP1995200B2 EP 1995200 B2 EP1995200 B2 EP 1995200B2 EP 08007077 A EP08007077 A EP 08007077A EP 1995200 B2 EP1995200 B2 EP 1995200B2
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- EP
- European Patent Office
- Prior art keywords
- thread
- bobbin
- cross
- wound
- wound bobbin
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/28—Traversing devices; Package-shaping arrangements
- B65H54/34—Traversing devices; Package-shaping arrangements for laying subsidiary winding, e.g. transfer tails
- B65H54/346—Traversing devices; Package-shaping arrangements for laying subsidiary winding, e.g. transfer tails on or outwardly of the fully wound yarn package
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
- B65H59/105—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices the material being subjected to the action of a fluid
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/14—Details
- D01H1/38—Arrangements for winding reserve lengths of yarn on take-up packages or spindles, e.g. transfer tails
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- the invention relates to a method for operating a winding device of a textile machine producing cross-wound bobbins according to the preamble of claim 1 and to a device according to claim 5.
- the thread end reserve of the cheese is usually formed by first unwinding some of the cross-wound thread windings from the coil body after the coil body has been completed and then rewinding it as a parallel winding either on the surface of the coil or on the tip of the cheese tube.
- an operating unit that can be moved along the workstations of a cheese-making machine, after a cheese has been completed, picks up the thread wound on the package surface with its suction nozzle, unwinds a certain amount of thread from the cheese and stores it temporarily in the suction nozzle.
- the thread running from the cheese to the suction nozzle is deflected by guide means on the suction nozzle beyond the end face of the cheese and transported into the area of a thread guide element pivotably mounted on the bobbin frame.
- the thread guide element held in the rest position by a spring element, is actuated by the operating unit to create a thread end reserve.
- a switching lever arranged on the control unit pushes a thread guide contour of the thread guide element close to the gusset formed by the thread package and the bobbin tube and ensures that the thread is wound onto the tip of the cheese tube as a thread end reserve.
- the thread between the sleeve and the suction nozzle is taut due to the suction flow present in the suction nozzle of the operating unit and is wound onto the sleeve in relatively tight windings.
- a bobbin changing carriage which has, inter alia, a suction nozzle, a bobbin drive and a thread guide device designed like a spindle.
- the suction nozzle is swiveled into the area of the cheese surface in this bobbin changing carriage and the bobbin is rotated in the unwinding direction by the bobbin drive.
- the suction nozzle picks up a certain amount of thread from the thread that has accumulated on the surface of the bobbin and temporarily stores this amount of thread.
- the thread guide designed as a spindle is then pivoted into the strand of thread extending between the cheese and the suction nozzle and the cheese is rotated again in the winding direction, the thread being pulled out of the suction nozzle.
- the thread is guided down from the bobbin surface, drawn as a tendon over the cross-bobbin flank and then fixed in parallel windings on the cross-bobbin surface.
- Winding units of textile machines producing cross-wound bobbins are known, which are equipped with a winding unit's own device for creating a thread end reserve.
- These known winding units have a thread traversing device with a thread guide which is arranged on a machine-long rod which, like the bobbin drive roller of the winding unit, is acted upon by a group drive arranged in a machine end frame of the textile machine.
- a pivotably mounted guide bar provided with a guide notch is provided which extends over the entire width of the bobbin.
- This spring-loaded guide bar is fixed in its rest position during the winding process by a controllable locking mechanism and, when the cheese has reached a predeterminable diameter, is swiveled open so that the thread is lifted out of the thread guide of the thread traversing device and on the guide bar in the direction of a bobbin flank arranged guide notch is shifted.
- the thread sliding into the guide notch runs onto the cheese in parallel windings and forms a thread end reserve before it is separated by an associated thread cutting device.
- the invention is based on the object of developing a method and a device that enables the creation of a cheese with a proper, safe thread end reserve during the winding process. That is, to create a method and a device in which, when creating a thread end reserve, unwinding and re-winding a thread end from a cheese, in particular with the aid of an operating unit, can be dispensed with.
- this object is achieved by the method described in claim 1 or by the device described in claim 5.
- the method according to the invention which is preferably used in winding units that have a bobbin frame for freely rotatable holding of a cheese, a single-motor-driven bobbin drive roller, a single-motor-driven, defined controllable thread traversing device and a winding unit's own thread storage device, has the advantage that the thread end reserve is already at the end the "regular" winding process can be carried out by the winding unit itself, that is, it does not have to wait until an operating unit moves to the winding unit, unwinds thread from the cheese and rewinds it again in parallel windings.
- the thread storage nozzle By activating the thread storage nozzle, which is inherent to the winding unit and can be subjected to negative pressure, it is also ensured in a simple manner that the thread is wound with a sufficiently high thread tension while this thread end reserve is being created, since the thread reserve created due to the parallel windings is immediately subjected to negative pressure during winding
- the thread storage nozzle is taken up as a thread loop and the thread is kept taut at all times.
- the thread in the course of creating the thread end reserve by the thread guide of the thread traversing device is initially moved back briefly over one of the bobbin flanks of the cheese and immediately onto the bobbin surface, where the The thread is then set in parallel windings on the bobbin surface of the cheese.
- Such a method ensures on the one hand that the thread extends over one of the bobbin flanks in the form of a tendon and is therefore easy to grip during further processing of the cheese, and on the other hand it ensures that the thread reserve is fixed sufficiently firmly on the bobbin even during the transport of the cheese is.
- the thread as set out in claim 4, is fixed with three parallel windings on the bobbin surface of the cheese with a crossed bobbin diameter of, for example, 350 mm.
- the thread is secured sufficiently securely to the bobbin surface of the bobbin while the cheese is being transported, and can also be detached at any time if necessary.
- the winding device of the textile machine producing cross-wound bobbins for carrying out the method according to the invention has, as described in claim 5, a bobbin frame for freely rotatable holding of a cheese, a bobbin drive roller that can be acted upon by an individual drive for rotating the cheese, a single motor-driven, defined controllable thread traversing device and a defined Switchable thread storage nozzle, the mouth of which is arranged in the area of the path of the thread.
- the thread storage nozzle is in turn connected to a sub-source and, if necessary, can be subjected to negative pressure, for example by appropriate control of a valve.
- the negative pressure in the area of the mouth of the thread storage nozzle acts on the passing thread in such a way that excess thread length, which inevitably occurs on winding units with constant thread delivery when creating parallel windings, is immediately sucked into the thread storage nozzle as a thread loop, thus keeping the thread taut becomes.
- FIG. 1 one half of an open-end spinning machine known per se is indicated and marked with 1.
- Such spinning machines have a large number of work stations 2, each of which is equipped with a spinning device 3 and a winding device 4.
- sliver 6 is spun into threads 7, which on the Winding devices 4 are wound into cross-wound bobbins 8.
- the winding devices 4 are each equipped with a bobbin frame 9 for rotatably holding a cheese 8 or an empty tube and with a winding drum 11 that can be driven by a single motor for rotating the cheese 8.
- these have for example in the DE 101 39 072 A1 largely self-sufficient workplaces 2 described, each via a single-motor-driven thread traversing device 18, a single-motor-driven thread take-off device 54, a workstation's own
- Suction nozzle 14 a piecing element 20 and a thread storage nozzle 60.
- the open-end spinning machine 1 also has a bobbin transport device 12 for disposing of the cross-wound bobbins 8 completed on the bobbin devices 4.
- a service unit (not shown), for example a so-called changing and cleaning trolley, can also be displaceable on a guide rail 13 and a support rail 15.
- Such service units intervene automatically when a need for action arises at one of the work stations 2.
- Such a need for action exists, for example, when a full cheese is to be exchanged for a new empty tube at one of the work stations 2.
- the Fig. 2 shows in perspective representation and on a larger scale one of the in Fig.1 schematically indicated work station 2 of an open-end rotor spinning machine 1.
- Such jobs 2 have, as above with reference to Fig.1 already explained, including via an open-end spinning device 3 and a winding device 4.
- a piecing element 16 is arranged in the area of the so-called thread take-off tube 21 of the open-end spinning device 3, which takes over the thread 7 retrieved by the suction nozzle 14 from the cheese 8 after a thread breakage and prepares the thread end for re-spinning .
- such workplaces 2 have a thread withdrawal device 54, which both removes the spinning thread 7 from the open-end spinning device 3 during regular spinning operation and ensures a defined return of a prepared thread 7 into the open-end spinning device 3 during re-spinning.
- the winding device 4 has a bobbin frame 9 for rotatably holding the cheese 8, a winding drum 11 that can be acted upon by a reversible individual drive 56, and a thread traversing device 18 that is driven, for example, by means of a stepping motor 57. Furthermore, such self-sufficient work stations 1 each have a pivotably mounted suction nozzle 14, which is adjustable by means of a stepper motor 58 between a thread take-up position located in the area of the winding device 4 and a thread transfer position located in the area of the spinning device 3.
- Each of the work stations 2 also has a thread monitor 26, a waxing device 17 and a thread storage nozzle 60 which can be subjected to a defined negative pressure and which is used on the one hand during the start-up of the work station 2 and on the other hand when creating a thread end reserve 10. That is, the thread storage nozzle 60 stores a thread end reserve 10 of excess thread length both during start-up of the work station 2 and during creation, thereby ensuring that the thread 7 is always wound with a correct winding tension.
- both the thread storage nozzle 60 and the pivotably mounted suction nozzle 14 are connected to a machine's own negative pressure network 19, the negative pressure source of which is identified by the reference number 30.
- the suction nozzle 14 and the thread storage nozzle 60 are connected to the negative pressure network 19 of the textile machine 1, for example each via a connection line 22 or 23.
- a closure means 24 is integrated in the connection line 22 and a closure means 25 is integrated in the connection line 23, the closure means 24 and 25 being connected via control lines 27, 28 to a control device 29 that is preferably internal to the workstation.
- Fig. 3 shows a completed cheese 8, that is, a cheese with a thread end reserve 10, which was created according to the method according to the invention.
- some parallel windings 32 preferably three, are arranged on the coil surface 34.
- thread tendon 31 which can be easily recognized by the operating personnel and which is easy to handle for detaching the thread end reserve 10.
- the bobbin surface 34 is displaced so that a thread tendon 31 is formed, which is then fixed by the parallel windings 32.
- the control device 29 When this thread end reserve 10 is created, the control device 29 simultaneously actuates the closure means 24 in the sense of "opening" and thus connects the thread storage nozzle 60 to the vacuum network 19 of the textile machine 1 via the line 22. The then present at the mouth of the thread storage nozzle 60 acts on the thread 7 running up on the cheese 8 so that any excess thread length that is created is immediately sucked into the thread storage nozzle 60 as a thread loop and the thread is thus kept taut at all times.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Looms (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
- Winding Filamentary Materials (AREA)
Description
Die Erfindung betrifft ein Verfahren zum Betreiben einer Spulvorrichtung einer Kreuzspulen herstellenden Textilmaschine gemäß dem Oberbegriff des Anspruchs 1 bzw. eine Vorrichtung gemäß Anspruch 5.The invention relates to a method for operating a winding device of a textile machine producing cross-wound bobbins according to the preamble of claim 1 and to a device according to
Im Zusammenhang mit der Herstellung von Kreuzspulen ist es seit langem üblich, solche Spulkörper sowohl mit einer Fadenanfangsreserve als auch mit einer so genannten Fadenendreserve zu versehen.
Die Fadenendreserve der Kreuzspule wird dabei in der Regel dadurch gebildet, dass nach der Fertigstellung des Spulenkörpers zunächst einige der kreuzweise aufgewickelten Fadenwicklungen wieder vom Spulenkörper abgewickelt und anschließend als Parallelwicklung entweder auf die Spulenoberfläche oder auf die Spitze der Kreuzspulenhülse wieder aufgewickelt werden.In connection with the production of cross-wound bobbins, it has long been customary to provide such bobbins with both a thread reserve and a so-called thread end reserve.
The thread end reserve of the cheese is usually formed by first unwinding some of the cross-wound thread windings from the coil body after the coil body has been completed and then rewinding it as a parallel winding either on the surface of the coil or on the tip of the cheese tube.
Entsprechende Verfahren und Vorrichtungen zum Erstellen einer solchen Fadenendreserve sind sowohl im Zusammenhang mit Offenend-Spinnmaschinen als auch von Kreuzspulautomaten her in verschiedenen Ausführungsformen bekannt und in zahlreichen Literaturstellen ausführlich beschrieben.Corresponding methods and devices for creating such a thread end reserve are known in various embodiments both in connection with open-end spinning machines and automatic package winder and are described in detail in numerous references.
Aus der
Beim Wiederaufwickeln wird der von der Kreuzspule zur Saugdüse verlaufende Faden durch Leitmittel an der Saugdüse über die Stirnseite der Kreuzspule hinaus ausgelenkt und dabei in den Bereich eines am Spulenrahmen schwenkbar gelagerten Fadenleitelements befördert.From the
During rewinding, the thread running from the cheese to the suction nozzle is deflected by guide means on the suction nozzle beyond the end face of the cheese and transported into the area of a thread guide element pivotably mounted on the bobbin frame.
Das durch ein Federelement in der Ruhelage gehaltene Fadenleitelement wird dabei zum Erstellen einer Fadenendreserve durch das Bedienaggregat betätigt.
Das heißt, durch einen am Bedienaggregat angeordneten Schalthebel wird eine Fadenleitkontur des Fadenleitelements in die Nähe des Zwickels, der von dem Garnwickel und der Spulenhülse gebildet wird, gedrückt und sorgt dafür, dass der Faden als Fadenendreserve auf die Spitze der Kreuzspulenhülse aufgewickelt wird.
Der Faden zwischen Hülse und Saugdüse ist dabei aufgrund der in der Saugdüse des Bedienaggregates anliegenden Saugströmung straff gespannt und wird in relativ festen Wicklungen auf die Hülse aufgewickelt.The thread guide element, held in the rest position by a spring element, is actuated by the operating unit to create a thread end reserve.
This means that a switching lever arranged on the control unit pushes a thread guide contour of the thread guide element close to the gusset formed by the thread package and the bobbin tube and ensures that the thread is wound onto the tip of the cheese tube as a thread end reserve.
The thread between the sleeve and the suction nozzle is taut due to the suction flow present in the suction nozzle of the operating unit and is wound onto the sleeve in relatively tight windings.
Ähnliche Verfahren bzw. Vorrichtungen zum Herstellen von Kreuzspulen mit einer Fadenendreserve sind auch in der
Auch bei diesen bekannten Vorrichtungen kommt beim Herstellen der Fadenendreserven der Kreuzspulen stets ein entlang der Arbeitsstellen der Textilmaschine verfahrbares Bedienaggregat zum Einsatz, das von einer Kreuzspule zuerst Faden abwickelt, bevor der Faden erneut in Parallelwicklungen wieder aufgewickelt wird.Similar methods and devices for producing cheeses with a thread end reserve are also in the
In these known devices, too, an operating unit that can be moved along the workstations of the textile machine is always used when producing the yarn end reserves of the cheese, which first unwinds thread from a cheese before the thread is rewound again in parallel windings.
In der
Die Saugdüse nimmt dabei eine gewisse Fadenmenge des auf die Spulenoberfläche aufgelaufene Fadens auf und speichert diese Fadenmenge vorübergehend.In the
The suction nozzle picks up a certain amount of thread from the thread that has accumulated on the surface of the bobbin and temporarily stores this amount of thread.
Anschließend wird die als Spindel ausgebildete Fadenführung in den sich zwischen Kreuzspule und Saugdüse erstreckenden Fadenstrang geschwenkt und die Kreuzspule wieder in Aufwickelrichtung rotiert, wobei Faden aus der Saugdüse herausgezogen wird.
Gemäß einem Ausführungsbeispiel wird der Faden dabei von der Spulenoberfläche heruntergeführt, als Sehne über die Kreuzspulenflanke gezogen und anschließend in Parallelwicklungen auf der Kreuzspulenoberfläche festgelegt.The thread guide designed as a spindle is then pivoted into the strand of thread extending between the cheese and the suction nozzle and the cheese is rotated again in the winding direction, the thread being pulled out of the suction nozzle.
According to one embodiment, the thread is guided down from the bobbin surface, drawn as a tendon over the cross-bobbin flank and then fixed in parallel windings on the cross-bobbin surface.
Des Weiteren sind durch die DE-PS
Diese bekannten Spulstellen weisen eine Fadenchangiereinrichtung mit einem Fadenführer auf, der an einer maschinenlangen Stange angeordnet ist, die, wie die Spulenantriebswalze der Spulstelle, über einen in einem Maschinenendgestell der Textilmaschine angeordneten Gruppenantrieb beaufschlagt wird.
Im Fadenlaufweg vor der Fadenchangiereinrichtung ist eine schwenkbar gelagerte, mit einer Führungskerbe versehene Führungsleiste vorgesehen, die sich über die gesamte Spulenbreite erstreckt.
Diese federkraftbeaufschlagte Führungsleiste ist während des Spulprozesses durch einen ansteuerbaren Riegelmechanismus in ihrer Ruhestellung fixiert und wird, wenn die Kreuzspule einen vorgebbaren Durchmesser erreicht hat, so aufgeschwenkt, dass der Faden aus dem Fadenführer der Fadenchangiereinrichtung gehoben und auf der Führungsleiste in Richtung der im Bereich einer Spulenflanke angeordneten Führungskerbe verlagert wird.
Der in die Führungskerbe gleitende Faden läuft in Parallelwicklungen auf die Kreuzspule auf und bildet dabei, bevor er durch eine zugehörige Fadenschneideinrichtung getrennt wird, eine Fadenendreserve.Furthermore, the DE-PS
These known winding units have a thread traversing device with a thread guide which is arranged on a machine-long rod which, like the bobbin drive roller of the winding unit, is acted upon by a group drive arranged in a machine end frame of the textile machine.
In the thread path in front of the thread traversing device, a pivotably mounted guide bar provided with a guide notch is provided which extends over the entire width of the bobbin.
This spring-loaded guide bar is fixed in its rest position during the winding process by a controllable locking mechanism and, when the cheese has reached a predeterminable diameter, is swiveled open so that the thread is lifted out of the thread guide of the thread traversing device and on the guide bar in the direction of a bobbin flank arranged guide notch is shifted.
The thread sliding into the guide notch runs onto the cheese in parallel windings and forms a thread end reserve before it is separated by an associated thread cutting device.
Nachteilig bei dieser Einrichtung ist allerdings, dass die Fadenspannung, mit der der Faden beim Erstellen der Parallelwicklungen aufgewickelt wird, gegenüber der Fadenspannung während des "normalen" Spulprozesses erheblich zurückgeht, mit der Folge, dass die Parallelwicklungen relativ locker gewickelt werden.
Bei solchen locker gewickelten Parallelwicklungen besteht dann stets die Gefahr, dass sich die Fadenendreserven während des Transports der Kreuzspulen von den Spulenkörpern lösen.The disadvantage of this device, however, is that the thread tension with which the thread is wound when creating the parallel windings compared to the thread tension during the "normal" winding process decreases considerably, with the result that the parallel windings are wound relatively loosely.
With such loosely wound parallel windings there is always the risk that the thread end reserves will detach from the bobbins during the transport of the cheese.
Durch die gattungsbildende
Der Fadenführer der Fadenchangiereinrichtung ist dabei über eine Steuereinrichtung so ansteuer- und positionierbar, dass eine Fadenendreserve, die aus einer Anzahl Parallelwicklungen besteht, wahlweise auf der Spitze der Kreuzspulenhülse oder auf der Mantelfläche der Kreuzspule angelegt werden kann.
Auch bei solchermaßen ausgebildeten Spulstellen werden die Fadenendreserven sehr locker gewickelt.
Das heißt, auch bei diesen bekannten Einrichtungen besteht die Gefahr, dass sich die relativ locker gewickelten Fadenendreserven, zum Beispiel während des Transportes der Kreuzspulen, unbeabsichtigt vom Spulenkörper bzw. der Spulenhülse lösen.
Ausgehend vom vorstehend beschriebenen Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Verfahren bzw. eine Vorrichtung zu entwickeln, das/die die Erstellung einer Kreuzspule mit einer ordnungsgemäßen, sicheren Fadenendreserve bereits im Zuge des Spulprozesses ermöglicht.
Das heißt, ein Verfahren bzw. eine Vorrichtung zu schaffen, bei dem/der bei der Erstellung einer Fadenendreserve auf das Abwickeln und erneute Aufwickeln eines Fadenendes von einer Kreuzspule, insbesondere unter Mithilfe eines Bedienaggregates, verzichtet werden kann.Through the generic
The thread guide of the thread traversing device can be controlled and positioned via a control device so that a thread end reserve consisting of a number of parallel windings can be placed either on the tip of the cheese tube or on the outer surface of the cheese.
Even with winding units designed in this way, the thread end reserves are wound very loosely.
That is, with these known devices, too, there is a risk that the relatively loosely wound thread end reserves will inadvertently detach from the bobbin or the bobbin, for example during the transport of the cheese.
On the basis of the prior art described above, the invention is based on the object of developing a method and a device that enables the creation of a cheese with a proper, safe thread end reserve during the winding process.
That is, to create a method and a device in which, when creating a thread end reserve, unwinding and re-winding a thread end from a cheese, in particular with the aid of an operating unit, can be dispensed with.
Diese Aufgabe wird erfindungsgemäß durch das im Anspruch 1 beschriebene Verfahren beziehungsweise durch die im Anspruch 5 beschriebene Vorrichtung gelöst.According to the invention, this object is achieved by the method described in claim 1 or by the device described in
Vorteilhafte Ausgestaltungen des erfindungsgemäßen Verfahrens sind Gegenstand der Unteransprüche.Advantageous embodiments of the method according to the invention are the subject of the subclaims.
Das erfindungsgemäße Verfahren, das vorzugsweise bei Spulstellen zum Einsatz kommt, die einen Spulenrahmen zum frei drehbaren Haltern einer Kreuzspule, eine einzelmotorisch antreibbare Spulenantriebswalze, eine einzelmotorisch antreibbare, definiert ansteuerbare Fadenchangiereinrichtung sowie eine spulstelleneigene Fadenspeichereinrichtung aufweisen, hat den Vorteil, dass die Fadenendreserve bereits zum Ende des "regulären" Spulprozesses durch die Spulstelle selbst durchgeführt werden kann, das heißt, es muss nicht gewartet werden, bis ein Bedienaggregat die Spulstelle anfährt, Faden von der Kreuzspule abwickelt und erneut in Parallelwicklungen wieder aufwickelt.
Durch die Zuschaltung der spulstelleneigenen, unterdruckbeaufschlagbaren Fadenspeicherdüse wird außerdem auf einfache Weise gewährleistet, dass der Faden während des Erstellens dieser Fadenendreserve mit einer ausreichend hohen Fadenspannung gewickelt wird, da während des Wickelns der Fadenreserve der sich aufgrund der Parallelwicklungen einstellende Fadenüberschuss sofort durch die mit Unterdruck beaufschlagte Fadenspeicherdüse als Fadenschlaufe aufgenommen und dadurch der Faden jederzeit straff gehalten wird.The method according to the invention, which is preferably used in winding units that have a bobbin frame for freely rotatable holding of a cheese, a single-motor-driven bobbin drive roller, a single-motor-driven, defined controllable thread traversing device and a winding unit's own thread storage device, has the advantage that the thread end reserve is already at the end the "regular" winding process can be carried out by the winding unit itself, that is, it does not have to wait until an operating unit moves to the winding unit, unwinds thread from the cheese and rewinds it again in parallel windings.
By activating the thread storage nozzle, which is inherent to the winding unit and can be subjected to negative pressure, it is also ensured in a simple manner that the thread is wound with a sufficiently high thread tension while this thread end reserve is being created, since the thread reserve created due to the parallel windings is immediately subjected to negative pressure during winding The thread storage nozzle is taken up as a thread loop and the thread is kept taut at all times.
Wie in den Ansprüchen 2 und 3 beschrieben, ist in vorteilhafter Ausgestaltung der Erfindung vorgesehen, dass der Faden im Zuge des Erstellens der Fadenendreserve durch den Fadenführer der Fadenchangiereinrichtung zunächst kurz über eine der Spulenflanken der Kreuzspule hinaus und sofort auf die Spulenoberfläche zurückverlegt wird, wo der Faden anschließend in parallelen Wicklungen auf der Spulenoberfläche der Kreuzspule festgelegt wird.As described in
Durch ein solches Verfahren wird einerseits erreicht, dass sich der Faden in Form einer Fadensehne über eine der Spulenflanken erstreckt und damit bei der Weiterverarbeitung der Kreuzspule gut greifbar ist und anderseits wird sichergestellt, dass die Fadenreserve auch während des Transportes der Kreuzspulen ausreichend fest am Spulenkörper fixiert ist.Such a method ensures on the one hand that the thread extends over one of the bobbin flanks in the form of a tendon and is therefore easy to grip during further processing of the cheese, and on the other hand it ensures that the thread reserve is fixed sufficiently firmly on the bobbin even during the transport of the cheese is.
Als besonders vorteilhaft hat sich erwiesen, wenn der Faden, wie im Anspruch 4 dargelegt, bei einem Kreuzspulendurchmesser von zum Beispiel 350 mm mit drei parallelen Wicklungen auf der Spulenoberfläche der Kreuzspule festgelegt wird.
Durch die Anordnung von vorzugsweise drei Parallelwicklungen ist der Faden sowohl während des Transportes der Kreuzspulen ausreichend sicher an der Spulenoberfläche der Kreuzspule festgelegt, als auch bei Bedarf jederzeit problemlos lösbar.It has proven to be particularly advantageous if the thread, as set out in
By arranging preferably three parallel windings, the thread is secured sufficiently securely to the bobbin surface of the bobbin while the cheese is being transported, and can also be detached at any time if necessary.
Die Spulvorrichtung der Kreuzspulen herstellenden Textilmaschine zur Durchführung des erfindungsgemäßen Verfahrens, weist, wie im Anspruch 5 beschrieben, einen Spulenrahmen zum frei drehbaren Haltern einer Kreuzspule, eine über einen Einzelantrieb beaufschlagbare Spulenantriebswalze zum Rotieren der Kreuzspule, eine einzelmotorisch antreibbare, definiert ansteuerbare Fadenchangiereinrichtung sowie eine definiert zuschaltbare Fadenspeicherdüse auf, deren Mündung im Bereich des Laufweges des Fadens angeordnet ist.
Die Fadenspeicherdüse ist ihrerseits an eine Unterquelle angeschlossen und kann bei Bedarf, zum Beispiel durch entsprechende Ansteuerung eines Ventils, mit Unterdruck beaufschlagt werden.
Durch den im Bereich der Mündung der Fadenspeicherdüse anstehenden Unterdruck wird der vorbeilaufende Faden so beaufschlagt, dass überschüssige Fadenlänge, wie sie auf Spulstellen mit konstanter Fadenlieferung bei der Erstellung von Parallelwicklungen unvermeidlich entsteht, sofort als Fadenschlaufe in die Fadenspeicherdüse eingesaugt und damit der Faden straff gehalten wird.The winding device of the textile machine producing cross-wound bobbins for carrying out the method according to the invention has, as described in
The thread storage nozzle is in turn connected to a sub-source and, if necessary, can be subjected to negative pressure, for example by appropriate control of a valve.
The negative pressure in the area of the mouth of the thread storage nozzle acts on the passing thread in such a way that excess thread length, which inevitably occurs on winding units with constant thread delivery when creating parallel windings, is immediately sucked into the thread storage nozzle as a thread loop, thus keeping the thread taut becomes.
Die Erfindung ist nachfolgend anhand eines in einer Zeichnung dargestellten Ausführungsbeispiel näher erläutert.The invention is explained in more detail below on the basis of an exemplary embodiment shown in a drawing.
Es zeigt:
- Fig.1
- in Seitenansicht eine Hälfte einer Offenend-Spinnmaschine, speziell eine der zahlreichen Arbeitsstellen einer solchen Textilmaschine, die so ausgestattet sind, dass das erfindungsgemäße Verfahren durchgeführt werden kann,
- Fig.2
- die in
Fig.1 dargestellte Arbeitsstelle in perspektivischer Ansicht sowie in einem größeren Maßstab, - Fig.3
- eine Kreuzspule mit einer Fadenendreserve, die nach dem erfindungsgemäßen Verfahren erstellt wurde.
- Fig.1
- a side view of one half of an open-end spinning machine, especially one of the numerous workplaces of such a textile machine that are equipped so that the method according to the invention can be carried out,
- Fig. 2
- in the
Fig.1 depicted job in perspective and on a larger scale, - Fig. 3
- a cheese with a thread end reserve, which was created according to the method according to the invention.
In
Derartige Spinnmaschinen weisen eine Vielzahl von Arbeitsstellen 2 auf, die jeweils mit einer Spinnvorrichtung 3 sowie einer Spuleinrichtung 4 ausgerüstet sind.
In den Spinnvorrichtungen 3 wird das in Spinnkannen 5 vorgelegte Faserband 6 zu Fäden 7 gesponnen, die auf den
Spuleinrichtungen 4 zu Kreuzspulen 8 aufgewickelt werden.
Wie angedeutet, sind die Spuleinrichtungen 4 jeweils mit einem Spulenrahmen 9 zum drehbaren Haltern einer Kreuzspule 8 beziehungsweise einer Leerhülse sowie mit einer einzelmotorisch antreibbaren Spultrommel 11 zum Rotieren der Kreuzspule 8 ausgestattet.
Des weiteren verfügen diese beispielsweise in der
Such spinning machines have a large number of
In the
Winding
As indicated, the
Furthermore, these have for example in the
Saugdüse 14, ein Anspinnorgan 20 sowie eine Fadenspeicherdüse 60.
Das heißt, die Arbeitsstellen 2 sind so ausgerüstet, dass sie auftretende Fadenbrüche selbsttätig beheben können.
Die Offenend-Spinnmaschine 1 weist außerdem eine Spulentransporteinrichtung 12 zum Entsorgen der auf den Spuleinrichtungen 4 fertig gestellten Kreuzspulen 8 auf.
An beziehungsweise auf der Spinnmaschine 1 kann außerdem an einer Führungsschiene 13 und einer Stützschiene 15 verfahrbar, ein (nicht dargestelltes) Serviceaggregat, beispielsweise ein so genannter Wechsel- und Reinigungswagen, angeordnet sein. Derartige Serviceaggregate greifen selbsttätig ein, wenn an einer der Arbeitsstellen 2 ein Handlungsbedarf entsteht.
Ein solcher Handlungsbedarf liegt beispielsweise vor, wenn an einer der Arbeitsstellen 2 eine volle Kreuzspule gegen eine neue Leerhülse getauscht werden soll.This means that the
The open-end spinning machine 1 also has a
On or on the spinning machine 1, a service unit (not shown), for example a so-called changing and cleaning trolley, can also be displaceable on a
Such a need for action exists, for example, when a full cheese is to be exchanged for a new empty tube at one of the
Die
Derartige Arbeitsstellen 2 verfügen, wie vorstehend anhand der
Bei diesen an sich bekannten, autarken Arbeitsstellen 2 ist im Bereich des so genannten Fadenabzugsröhrchens 21 der Offenend-Spinnvorrichtung 3 ein Anspinnorgan 16 angeordnet, das den nach einem Fadenbruch durch die Saugdüse 14 von der Kreuzspule 8 zurückgeholten Faden 7 übernimmt und das Fadenende zum Wiederanspinnen vorbereitet.
Des weiteren verfügen solche Arbeitsstellen 2 über eine Fadenabzugseinrichtung 54, die sowohl das Abziehen des Spinnfadens 7 aus der Offenend-Spinnvorrichtung 3 während des regulären Spinnbetriebes übernimmt, als auch beim Wiederanspinnen für eine definierte Rückführung eines vorbereiteten Fadens 7 in die Offenend-Spinnvorrichtung 3 sorgt.The
In these self-
In addition,
Die Spuleinrichtung 4 weist einen Spulenrahmen 9 zum drehbaren Haltern der Kreuzspule 8, eine vorzugsweise über einen reversierbaren Einzelantrieb 56 beaufschlagbare Spultrommel 11 sowie eine Fadenchangiereinrichtung 18 auf, die beispielsweise mittels eines Schrittmotors 57 angetrieben wird.
Des weiteren verfügen derartige autarke Arbeitsstellen 1 jeweils über eine schwenkbar gelagerte Saugdüse 14, die mittels eines Schrittmotors 58 definiert zwischen einer im Bereich der Spulvorrichtung 4 liegenden Fadenaufnahmestellung und einer im Bereich der Spinnvorrichtung 3 liegenden Fadenübergabestellung verstellbar ist. Jede der Arbeitsstellen 2 weist außerdem einen Fadenwächter 26, eine Paraffiniereinrichtung 17 sowie eine definiert unterdruckbeaufschlagbare Fadenspeicherdüse 60 auf, die einerseits während des Hochlaufens der Arbeitsstelle 2 und anderseits bei der Erstellung eine Fadenendreserve 10 zum Einsatz kommt.
Das heißt, durch die Fadenspeicherdüse 60 wird sowohl während des Hochlaufens der Arbeitsstelle 2, als auch während der Erstellung eine Fadenendreserve 10 überschüssige Fadenlänge gespeichert und dadurch dafür gesorgt, dass der Faden 7 stets mit einer vorschriftsmäßigen Wickelspannung aufgespult wird.The winding
Furthermore, such self-sufficient work stations 1 each have a pivotably mounted
That is, the
Wie aus
Die Saugdüse 14 und die Fadenspeicherdüse 60 sind, beispielsweise jeweils über eine Anschlussleitung 22 bzw. 23, an das Unterdrucknetz 19 der Textilmaschine 1 angeschlossen.How out
The
In die Anschlussleitung 22 ist dabei ein Verschlussmittel 24, in Anschlussleitung 23 ein Verschlussmittel 25 integriert, wobei die Verschlussmittel 24 bzw. 25 über Steuerleitungen 27, 28 an eine vorzugsweise arbeitsstelleneigene Steuereinrichtung 29 angeschlossen sind.A closure means 24 is integrated in the connection line 22 and a closure means 25 is integrated in the
Wie dargestellt, sind auf der Spulenoberfläche 34 einige Parallelwicklungen 32, vorzugsweise drei, angeordnet.
Im Bereich einer der Spulenflanken 35 ist außerdem eine Fadensehne 31 vorhanden, die durch das Bedienpersonal leicht erkennbar ist und zum Ablösen der Fadenendreserve 10 gut handhabbar ist.
As shown, some
In the area of one of the bobbin flanks 35 there is also a
Funktion des erfindungsgemäßen Verfahrens:
- Während des "normalen" Spinn-/Spulbetriebes wird der in
der Spinnvorrichtung 3hergestellte Faden 7 auf der Spulvorrichtung 4 zu einer Kreuzspule 8 aufgewickelt.
Durch diese Fadenführerbewegung wird der
- During the "normal" spinning / winding operation, the
thread 7 produced in thespinning device 3 is wound up on the windingdevice 4 to form acheese 8.
When the
By this thread guide movement, the
Spulenoberfläche 34 verlagert, dass sich eine Fadensehne 31 bildet, die anschließend durch die Parallelwicklungen 32 fixiert wird.The
Bei der Erstellung dieser Fadenendreserve 10 wird gleichzeitig über die Steuereinrichtung 29 das Verschlussmittel 24 im Sinne "Öffnen" betätigt und damit die Fadenspeicherdüse 60 über die Leitung 22 mit dem Unterdrucknetz 19 der Textilmaschine 1 verbunden.
Der dann an der Mündung der Fadenspeicherdüse 60 anstehende Unterdruck beaufschlagt den auf die Kreuzspule 8 auflaufenden Faden 7 dabei so, dass entstehende, überschüssige Fadenlänge sofort als Fadenschlaufe in die Fadenspeicherdüse 60 eingesaugt und dadurch der Faden jederzeit straff gehalten wird.When this
The then present at the mouth of the
Claims (5)
- Method for operating a winding device (4) of a textile machine (1) producing cross-wound bobbins, which has a creel (9) for the freely rotatable holding of a cross-wound bobbin (8), a bobbin drive roller (11), which can be driven by a single drive, for rotating the cross-wound bobbin (8), and a thread traversing mechanism (18) which can be driven by a single motor and activated in a defined manner, wherein on reaching a predeterminable cross-wound bobbin diameter or a predeterminable thread length, the thread guide (40) of the thread traversing mechanism (18), to produce a thread end reserve (10) comprising parallel windings for an adjustable time span, is either positioned outside the winding region of the cross-wound bobbin or inside the winding region of the cross-wound bobbin,
characterized in that
while the thread end reserve (10) is being produced, a thread storage nozzle (60) particular to the winding head and which can be acted upon with negative pressure is connected and acts on the thread (7) running onto the cross-wound bobbin (8) in such a way that excess thread length being produced during the winding of the thread end reserve (10) is intermediately stored and a minimum thread tension is thereby ensured that is necessary to reliably fix the thread end reserve (10) on the bobbin body or the cross-wound bobbin tube. - Method according to claim 1, characterized in that the thread (7), while the thread reserve (10) is being produced, is firstly displaced beyond one of the bobbin flanks (35) of the cross-wound bobbin (8) by the thread guide (40) of the thread traversing mechanism (18) and then fixed in parallel windings (32) on the bobbin surface (34) of the cross-wound bobbin (8).
- Method according to claim 2, characterized in that the thread guide (40), viewed from the front of the workstation (2), briefly displaces the thread (7) beyond the left bobbin flank (35) of the cross-wound bobbin (8).
- Method according to claim 1, characterized in that the thread (7) is fixed by a number of parallel windings (32) depending on the diameter of the cross-wound bobbin (8) on the bobbin surface (34) of the cross-wound bobbin (8).
- Winding device of a textile machine (1) producing cross-wound bobbins for carrying out the method according to claim 1, comprising a creel (9) for the freely rotatable holding of a cross-wound bobbin (8), a bobbin drive roller (11) which can be driven by a single drive for rotating the cross-wound bobbin (8), and a thread traversing mechanism (18) which can be driven by a single motor and activated in a defined manner, characterized in that each of the numerous workstations (2) of the textile machine (1) is equipped with a thread storage nozzle (60) which can be acted on by negative pressure and can be connected in a defined manner, the mouth of which thread storage nozzle is arranged in the region of the running path of the thread (7) running onto the cross-wound bobbin (8).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007023490A DE102007023490A1 (en) | 2007-05-19 | 2007-05-19 | Method and device for operating a winding device of a cross-wound producing textile machine |
Publications (4)
Publication Number | Publication Date |
---|---|
EP1995200A2 EP1995200A2 (en) | 2008-11-26 |
EP1995200A3 EP1995200A3 (en) | 2012-04-04 |
EP1995200B1 EP1995200B1 (en) | 2017-05-31 |
EP1995200B2 true EP1995200B2 (en) | 2020-09-23 |
Family
ID=39712039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08007077.4A Active EP1995200B2 (en) | 2007-05-19 | 2008-04-10 | Method and device for operating a winding device of a textile machine which produces crosswound bobbins |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080283655A1 (en) |
EP (1) | EP1995200B2 (en) |
CN (1) | CN101306776B (en) |
DE (1) | DE102007023490A1 (en) |
Families Citing this family (10)
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DE102009009971B4 (en) * | 2009-02-21 | 2017-03-16 | Saurer Germany Gmbh & Co. Kg | Method and apparatus for operating a workstation of a textile machine producing cross-cheeses, and workstation for carrying out the method |
CN102139556B (en) * | 2010-11-18 | 2012-07-04 | 江苏舒尔雅家纺有限公司 | Tension-free cloth supplying device of flat screen printing machine production line |
CN105600588B (en) * | 2016-01-13 | 2017-04-26 | 杭州长翼纺织机械有限公司 | Automatic winding machine |
CN105946339B (en) * | 2016-06-22 | 2018-02-13 | 浙江东山广信数码印花设备有限公司 | Suitable for the portable fabric sticking device of High-elasticity fabric |
CZ309324B6 (en) * | 2016-11-14 | 2022-08-24 | Rieter Cz S.R.O. | A method of defined storage of the end of the yarn on the spool |
CZ2016708A3 (en) * | 2016-11-14 | 2018-06-06 | Rieter Cz S.R.O. | A method of defined placement of the yarn end on the bobbin |
CN111392511A (en) * | 2020-04-26 | 2020-07-10 | 苏州智殷自动化有限公司 | Automatic wire spool loading and unloading system for tire steel wire winding device |
CN114084715B (en) * | 2020-05-20 | 2024-02-06 | 台州唯德包装股份有限公司 | Winding method of PP woven packaging belt processing winding device |
DE102020127007A1 (en) | 2020-10-14 | 2022-04-14 | Saurer Spinning Solutions Gmbh & Co. Kg | Method of operating a spinning machine and spinning machine |
DE102021130062A1 (en) | 2021-11-17 | 2023-05-17 | Maschinenfabrik Rieter Ag | Method for operating a winding station of a winding machine and winding machine |
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2007
- 2007-05-19 DE DE102007023490A patent/DE102007023490A1/en not_active Withdrawn
-
2008
- 2008-04-10 EP EP08007077.4A patent/EP1995200B2/en active Active
- 2008-05-06 US US12/151,310 patent/US20080283655A1/en not_active Abandoned
- 2008-05-07 CN CN2008100928749A patent/CN101306776B/en active Active
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DE3734478A1 (en) † | 1987-10-12 | 1989-04-27 | Schubert & Salzer Maschinen | METHOD AND DEVICE FOR GUIDING, HOLDING AND SEPARATING A THREAD WHILE REEL CHANGING |
DE10139075A1 (en) † | 2001-08-09 | 2003-02-20 | Schlafhorst & Co W | Open-end rotor spinning machine |
DE102005045712A1 (en) † | 2005-09-24 | 2007-03-29 | Saurer Gmbh & Co. Kg | Thread take-off roller for a textile machine producing cross-wound bobbins |
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Also Published As
Publication number | Publication date |
---|---|
US20080283655A1 (en) | 2008-11-20 |
CN101306776B (en) | 2012-11-14 |
EP1995200A3 (en) | 2012-04-04 |
EP1995200A2 (en) | 2008-11-26 |
CN101306776A (en) | 2008-11-19 |
DE102007023490A1 (en) | 2008-11-20 |
EP1995200B1 (en) | 2017-05-31 |
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