EP2338818A2 - Procedure for operating a workstation of a winding machine and workstation of a winding machine - Google Patents

Procedure for operating a workstation of a winding machine and workstation of a winding machine Download PDF

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Publication number
EP2338818A2
EP2338818A2 EP10014645A EP10014645A EP2338818A2 EP 2338818 A2 EP2338818 A2 EP 2338818A2 EP 10014645 A EP10014645 A EP 10014645A EP 10014645 A EP10014645 A EP 10014645A EP 2338818 A2 EP2338818 A2 EP 2338818A2
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EP
European Patent Office
Prior art keywords
thread
catching nozzle
nozzle
presented
workstation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10014645A
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German (de)
French (fr)
Other versions
EP2338818B1 (en
EP2338818A3 (en
Inventor
Michael Iding
Detlev Lücker
Bernd-Rüdiger Theele
Hans-Günter Wedershoven
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co KG
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Publication date
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Publication of EP2338818A2 publication Critical patent/EP2338818A2/en
Publication of EP2338818A3 publication Critical patent/EP2338818A3/en
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Publication of EP2338818B1 publication Critical patent/EP2338818B1/en
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Classifications

    • 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
    • B65H54/86—Arrangements for taking-up waste material before or after winding or depositing
    • B65H54/88—Arrangements for taking-up waste material before or after winding or depositing by means of pneumatic arrangements, e.g. suction guns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • 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 workstation of a winding machine with a thread catching nozzle, which is arranged adjacent to the barrel of the thread, is acted upon by negative pressure and exerts a suction effect on the thread running in front of its mouth. Furthermore, the invention relates to a workstation of a winder for performing the method.
  • a winding machine which is to be operated by the method according to the invention, winds the yarn from a delivery bobbin, for example a spinning cop, onto a take-up bobbin, usually a cross-wound bobbin.
  • a workstation of such a winding machine in the area of the thread running path to various Fadenüberwachungs-, Faden accents- and thread handling devices.
  • a so-called thread catching nozzle is arranged at each winding station in the yarn path. This is a vacuum-charged tube, which serves to suck in a possible thread break a thread end and hold. From the thread catching nozzle also stray threads are sucked.
  • Such stray threads arise, for example, when the thread breaks in the vicinity of the package in the upper region of the thread running path and the thread is then cut by a so-called cleaner arranged below the break point. Furthermore, dust and dirt particles produced by the drainage bobbin are drawn off by such a thread catching nozzle when the thread runs off.
  • the suction of dust and dirt particles is for the quality of the package of special meaning.
  • the suction of thread ends prevents looping of components of the winding unit, thus ensuring a defined shutdown of the winding unit and thus allows automated thread connection and recommissioning of the workstation of the winder.
  • the thread-trapping nozzle In order to fulfill its task, the thread-trapping nozzle must constantly be subjected to negative pressure during the normal winding process.
  • the thread catching nozzle will generally not develop a suction effect in order to prevent the yarns, which are returned by the yarn handling devices in the region of a yarn joining device, from being sucked into the thread catching nozzle by mistake, still with relatively low tension. But it is also conceivable that the thread catching nozzle permanently develops a suction effect. A possibly during or after the thread connecting process sucked thread loop must then be pulled out of the thread catching nozzle again with the start of the winding unit and dissolved.
  • the in the DE 10 2008 013 108 A1 disclosed winder even has two of these thread catching nozzles.
  • the first thread catching nozzle is arranged in the region of a paraffining device, since this area is particularly susceptible to contamination. Furthermore, this first thread catching nozzle is arranged so that it detects in particular the end of the upper thread at a yarn breakage. The upper thread is the thread wound on the package. In this way, the formation of so-called drum winding is prevented.
  • a second thread catching nozzle is arranged above a thread tensioner. This thread tensioner is designed to fix the lower thread during a thread break, that is to say the thread withdrawn from the delivery bobbin.
  • a vacuum-loaded so-called gripper tube is also arranged, which at its end a Closing flap has.
  • the gripper tube transports the lower thread after a thread interruption in the direction of the thread connecting device.
  • the second thread catching nozzle is intended to prevent the thread falling uncontrollably in the direction of the thread tensioner in the event of a cleaner cut or a stress break.
  • An uncontrollably falling thread can lead to difficulties in the region of the gripper tube, in particular on the movably mounted gripper tube flap.
  • a thread catching nozzle is of particular importance for the proper operation of a working station of a winding machine and for the quality of the packages that are produced.
  • a thread catching nozzle is clogged by the sucked dirt particles and the sucked thread residues and their function is no longer guaranteed. It may also happen that such a malfunction of the thread catching nozzle remains undetected and low-quality packages are produced that are not suitable for further processing and must be sorted out.
  • a thread is presented after a Spulunterbrechung the thread catching nozzle. This can be done by means take place, which are available for the thread connection process anyway at the workplace. Thereafter, a free yarn end is generated at the presented thread at a distance from the mouth of the thread catching nozzle. Then, when the free end of the thread is sucked into the thread catching nozzle, the function of the thread catching nozzle is ensured. Therefore, according to the invention, the suction of the free end of the thread into the thread-catching nozzle is monitored.
  • the method according to the invention makes it possible in a simple manner to check the functionality of the thread catching nozzle.
  • the check can be made after a predetermined time, after a predetermined number of thread connection operations or after each cheese change. An error in the function of the thread catching nozzle is detected early and can be remedied.
  • the presence of the thread in the thread-trapping nozzle is detected.
  • a simple sensor as is already known, for example, as a bobbin thread sensor on winding machines, can be arranged in the thread catching nozzle.
  • the thread is placed in addition to the presentation of the thread catching nozzle in a yarn thread befindliches thread detection means, before the thread end is generated on the yarn catching nozzle side facing away from the thread detection means.
  • a thread detection means both a so-called cleaner, as well as a simple statically operating thread monitor is suitable.
  • a cleaner is usually placed in the threadline of a winder to monitor the quality of the thread during the winding process and clean out any imperfections if necessary.
  • a thread monitor only detects whether a thread is present or not.
  • a detection means can be used which is present anyway for the normal operation of the winding machine. The suction of the thread end into the thread catching nozzle is detected when the absence of the thread in the thread detecting means is detected.
  • the thread is placed in addition to the presentation of the thread catching nozzle in a yarn thread befindliches thread detection means and detects the presence of the thread before sucking into the thread catching nozzle.
  • the free end of the thread required for carrying out the method according to the invention can be achieved in a simple manner by cutting the thread presented to the thread catching nozzle by means of a cutting device arranged in the thread run.
  • Such cutting devices are already present both on the cleaner and on the thread connecting device.
  • both the upper thread and the lower thread can be submitted.
  • a workstation of a winding machine for carrying out the method according to the invention with a control device and a thread catching nozzle is also proposed.
  • the control device is to designed to control the thread feeding means of the winding unit after a Spulunterbrechung so that the thread catching nozzle a thread is presented, and to drive a cutting device for generating a free yarn end of the thread presented.
  • the control device is connected to a detection means and designed to detect the suction of the free end of the thread into the thread catching nozzle from a signal of the detection means.
  • the detection means is arranged in the thread catching nozzle and designed to detect the sucked into the thread catching nozzle free end of the thread.
  • the detection means is designed as a cleaner and arranged in the yarn path.
  • Fig. 1 is a side view schematically a job 2 a winder 1, in the embodiment, a so-called cross-winding machine, shown during the winding process.
  • a winder 1 in the embodiment, a so-called cross-winding machine, shown during the winding process.
  • Such spooling machines 1 have between their (not shown) Endgestellen a variety of similar jobs 2, so-called winding units, on.
  • Such spooling machines are also either equipped with a round magazine, can be stored in the spinning cops, or the cheese packages have a logistics device in the form of a coil and sleeve transport system 3.
  • a bobbin and tube transport system 3 then run spinning cops 9 and empty tubes 34, which are arranged in a vertical orientation on transport plates 8.
  • the supplied spinning cops 9 are thereby first in an unwinding position 10, which is located in the region of the transverse transport lines 6 at the winding units 2, positioned and then rewound.
  • the individual jobs 2 have for this purpose, as is well known and therefore only hinted at different Fadenüberwachungs- and treatment facilities that not only ensure that the spinning cops 9 can be rewound to bulky packages 11, but also ensure that the thread 30th is monitored for thread defects during the rewinding process and detected thread defects are cleared out.
  • Each work station 2 has a control device 40, which only indicated above Control lines is connected to the thread monitoring and treatment facilities.
  • the work stations 2 each have a winding device 24, which has a creel 18, which is movably mounted about a pivot axis 19, and is equipped with a bobbin drive device 26 and a thread-switching device 28.
  • the cheese 11 is located during the winding process with its surface on a drive roller 26 and is carried along by this frictional engagement.
  • the drive roller 26 is acted upon via a variable speed, reversible (not shown) drive means.
  • the traversing of the thread 30 during emergence onto the cross-wound bobbin 11 takes place by means of a thread-changing device 28, which has a finger thread guide 29 in the present exemplary embodiment.
  • the winding unit 2 furthermore has a thread connecting device, preferably a pneumatically operating splicing device 13 with a cutting device 43, a lower thread sensor 22, a thread tensioner 14, a thread cleaner 15 with a thread cutting device 17, a yarn tension force sensor 20 and a waxing device 16.
  • a thread connecting device preferably a pneumatically operating splicing device 13 with a cutting device 43, a lower thread sensor 22, a thread tensioner 14, a thread cleaner 15 with a thread cutting device 17, a yarn tension force sensor 20 and a waxing device 16.
  • the winding unit 2 is equipped with a suction nozzle 12 and a gripper tube 25, both defined are acted upon by negative pressure.
  • the suction nozzle 12 and the gripper tube 25 are connected to a machine-long vacuum cross-beam 32 of the cheese winder 1, which in turn is in communication with a vacuum source 33.
  • first thread catching nozzle 23 is positioned so that the thread 30 runs during the winding process before its mouth 42.
  • the thread-catching nozzle 23 is likewise connected to the vacuum cross-member 32 via an air switch 27.
  • the air switch 27 in this case has a connecting piece 35 for the first thread catching nozzle 23 and a relatively voluminous discharge port 36, the mouth of which is hermetically sealed during the regular winding operation by the suction nozzle P positioned in the waiting position P. Opening the discharge nozzle 36 by pivoting up the suction nozzle 12 ensures that the negative pressure applied to the thread-catching nozzle 23 collapses.
  • a second thread catching nozzle 37 is also connected via a pneumatic line 38.
  • the mouth 31 of this second thread-catching nozzle 37 is positioned in the thread running direction F just above the thread tensioner 14, likewise close behind the thread running path.
  • a thread monitor 41 is arranged at the second thread catching nozzle 37. This thread monitor 41 is designed to detect the presence of a sucked into the thread catching nozzle 37 thread.
  • the suction nozzle 12 pivots from its waiting position P in the direction of the cheese 11 and detects the accumulated on the cheese 11 after the Spulunterbrechung thread and then pivots back to the waiting position P.
  • the suction nozzle 12 sets the thread in the cleaner 15 and in the thread connecting device 13 a.
  • the cleaner 15 first detects the correct presentation of the thread. If the thread is not detected by the cleaner 15, the thread-detecting operation of the suction nozzle 12 is repeated. As soon as the suction nozzle 12 has reached its waiting position P again. If the previously opened relief nozzle 36 is closed again and the thread-catching nozzle 23 is subjected to negative pressure.
  • the thread is then cut by the thread cutting device 17 of the thread cleaner 15 or by the cutting device 43 of the thread connecting device 13.
  • the cut thread is sucked by the suction nozzle 12. It depends on the operability of the thread catching nozzle 23, which happens to the free end of the thread wound on the cross wound bobbin. If the thread catching nozzle is in order, the free end of the thread is absorbed by this. The thread is then no longer in the cleaner 15.
  • the cleaner 15 detects the absence of the yarn.
  • the signals are evaluated in the control device 40, which has also controlled the presentation of the thread, and it is the functionality of the thread catching nozzle 23 is displayed. If the thread catching nozzle 23 is not in order, the thread is not sucked in and remains in the cleaner 15. The presence of the thread is detected by the cleaner 15.
  • the control device 40 which evaluates the signal of the cleaner 15, then generates an error signal.
  • the in the thread catching nozzle 23 according to Fig. 1 arranged thread monitor 44 is only optional and not required in the described functional test. Alternatively, however, the sucking in of the free Thread end are detected in the thread catching nozzle 23 with the thread monitor 44.
  • the function of the second thread catching nozzle 37 is checked in a similar manner.
  • the processes are again controlled and evaluated by means of the control device 40.
  • the lower thread is held in the thread tensioner 14.
  • the gripper tube 25 pivots into a receiving position and sucks the lower thread.
  • the thread tensioner 14 is opened, the gripper tube 25 pivots upward and sets the thread in the thread connecting device 13 a.
  • the thread is then in front of the mouth 31 of the second thread catching nozzle 37.
  • the correct presentation of the thread in front of the mouth 31 is not checked in the described embodiment. However, this would be readily possible by an arrangement of a thread monitor or cleaner at a suitable point in the regular yarn path.
  • the thread catching nozzle 37 is subjected to negative pressure.
  • the suction nozzle 12 must therefore be in the waiting position P, so that the discharge nozzle 36 is closed.
  • the thread inserted into the thread connecting device 13 is cut by the cutting device 43 of the thread connecting device 13.
  • the cut thread is sucked in by the gripper tube 25.
  • the free end of the coming of the spinning cop 9 thread is sucked in with proper function of the second thread catching nozzle 37.
  • the thread monitor 41 of the second thread catching nozzle 37 detects the presence of the thread in the second thread catching nozzle 37.
  • the signal is transmitted to the control device 40, which determines the operability of the second thread catching nozzle 37. If the thread monitor does not detect a thread, the control device 40 generates an error message.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Textile Engineering (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)

Abstract

The method involves pressurizing thread collectors (23, 37) with low pressure, and exerting suction effect on threads (30) that run from openings (31, 42) of the collectors. Another thread is supplied after bobbin disconnection of the collectors, and a free thread end is generated at the supplied thread with a distance to the openings. Suction of the free thread end into the collectors is monitored, and presence of the thread in the collectors is detected. The thread is placed in a thread detection unit (15) that is formed as a cleaner. An independent claim is also included for a workstation comprising a controller.

Description

Verfahren zum Betreiben einer Arbeitsstelle einer Spulmaschine und Arbeitsstelle einer SpulmaschineMethod for operating a workstation of a winder and workstation of a winder

Die Erfindung betrifft ein Verfahren zum Betreiben einer Arbeitsstelle einer Spulmaschine mit einer Fadenfangdüse, die benachbart zum Lauf des Fadens angeordnet ist, mit Unterdruck beaufschlagt wird und eine Saugwirkung auf den vor ihrer Mündung laufenden Faden ausübt. Ferner betrifft die Erfindung eine Arbeitsstelle einer Spulmaschine zur Durchführung des Verfahrens.The invention relates to a method for operating a workstation of a winding machine with a thread catching nozzle, which is arranged adjacent to the barrel of the thread, is acted upon by negative pressure and exerts a suction effect on the thread running in front of its mouth. Furthermore, the invention relates to a workstation of a winder for performing the method.

Eine Spulmaschine, die mit dem erfindungsgemäßen Verfahren betrieben werden soll, spult den Faden von einer Ablaufspule, zum Beispiel einem Spinnkops, auf eine Auflaufspule, meistens eine Kreuzspule. Zur Durchführung des Spulprozesses weist eine Arbeitsstelle einer solchen Spulmaschine im Bereich des Fadenlaufweges verschiedene Fadenüberwachungs-, Fadenbehandlungs- sowie Fadenhandhabungseinrichtungen auf. Im Allgemeinen ist an jeder Spulstelle im Fadenlauf eine sogenannte Fadenfangdüse angeordnet. Das ist ein mit Saugluft beaufschlagtes Röhrchen, das dazu dient, bei einem eventuellen Fadenbruch ein Fadenende einzusaugen und zu halten. Von der Fadenfangdüse werden auch vagabundierende Fäden eingesaugt. Solche vagabundierenden Fäden entstehen zum Beispiel, wenn der Faden in der Nähe der Auflaufspule im oberen Bereich des Fadenlaufweges bricht und der Faden daraufhin von einem unterhalb der Bruchstelle angeordneten sogenannten Reiniger geschnitten wird. Ferner werden durch eine solche Fadenfangdüse beim Ablaufen des Fadens von der Ablaufspule entstehende Staubund Schmutzpartikel abgesaugt. Das Absaugen der Staub- und Schmutzpartikel ist für die Qualität der Auflaufspule von besonderer Bedeutung. Das Einsaugen von Fadenenden verhindert ein Umschlingen von Komponenten der Spulstelle, stellt so ein definiertes Abschalten der Spulstelle sicher und ermöglicht damit eine automatisierte Fadenverbindung und Wiederinbetriebnahme der Arbeitsstelle der Spulmaschine. Um ihre Aufgabe zu erfüllen, muss die Fadenfangdüse während des normalen Spulprozesses ständig mit Unterdruck beaufschlagt sein. Während des Fadenverbindungsprozesses wird die Fadenfangdüse in der Regel keine Saugwirkung entfalten, um zu verhindern, dass die durch die Fadenhandhabungseinrichtungen in den Bereich einer Fadenverbindungseinrichtung zurückgeholten, noch relativ spannungsarmen Fäden versehentlich in die Fadenfangdüse eingesaugt werden. Es ist aber auch denkbar, dass die Fadenfangdüse dauerhaft eine Saugwirkung entfaltet. Eine möglicherweise während oder nach dem Fadenverbindungsvorgang eingesaugte Fadenschlaufe muss dann mit dem Anlaufen der Spulstelle wieder aus der Fadenfangdüse herausgezogen und aufgelöst werden.A winding machine, which is to be operated by the method according to the invention, winds the yarn from a delivery bobbin, for example a spinning cop, onto a take-up bobbin, usually a cross-wound bobbin. To carry out the winding process, a workstation of such a winding machine in the area of the thread running path to various Fadenüberwachungs-, Fadenbehandlungs- and thread handling devices. In general, a so-called thread catching nozzle is arranged at each winding station in the yarn path. This is a vacuum-charged tube, which serves to suck in a possible thread break a thread end and hold. From the thread catching nozzle also stray threads are sucked. Such stray threads arise, for example, when the thread breaks in the vicinity of the package in the upper region of the thread running path and the thread is then cut by a so-called cleaner arranged below the break point. Furthermore, dust and dirt particles produced by the drainage bobbin are drawn off by such a thread catching nozzle when the thread runs off. The suction of dust and dirt particles is for the quality of the package of special meaning. The suction of thread ends prevents looping of components of the winding unit, thus ensuring a defined shutdown of the winding unit and thus allows automated thread connection and recommissioning of the workstation of the winder. In order to fulfill its task, the thread-trapping nozzle must constantly be subjected to negative pressure during the normal winding process. During the yarn joining process, the thread catching nozzle will generally not develop a suction effect in order to prevent the yarns, which are returned by the yarn handling devices in the region of a yarn joining device, from being sucked into the thread catching nozzle by mistake, still with relatively low tension. But it is also conceivable that the thread catching nozzle permanently develops a suction effect. A possibly during or after the thread connecting process sucked thread loop must then be pulled out of the thread catching nozzle again with the start of the winding unit and dissolved.

Die in der DE 10 2008 013 108 A1 offenbarte Spulmaschine weist sogar zwei dieser Fadenfangdüsen auf. Die erste Fadenfangdüse ist im Bereich einer Paraffiniereinrichtung angeordnet, da dieser Bereich besonders verschmutzungsanfällig ist. Ferner ist diese erste Fadenfangdüse so angeordnet, dass sie bei einem Fadenbruch insbesondere das Ende des Oberfadens erfasst. Als Oberfaden wird der auf die Auflaufspule gewickelte Faden bezeichnet. Auf diese Weise wird die Entstehung sogenannter Trommelwickel verhindert. Eine zweite Fadenfangdüse ist oberhalb eines Fadenspanners angeordnet. Dieser Fadenspanner ist dazu ausgebildet, bei einem Fadenbruch den Unterfaden, das heißt, den von der Ablaufspule abgezogen Faden, zu fixieren. In diesem Bereich ist außerdem ein unterdruckbeaufschlagtes sogenanntes Greiferrohr angeordnet, welches an seinem Ende eine Verschlussklappe aufweist. Das Greiferrohr transportiert den Unterfaden nach einer Fadenunterbrechung in Richtung der Fadenverbindungseinrichtung. Die zweite Fadenfangdüse soll verhindern, dass der Faden bei einem Reinigerschnitt oder einem Spannungsbruch unkontrolliert in Richtung des Fadenspanners fällt. Ein unkontrolliert herunterfallender Faden kann im Bereich des Greiferrohres, insbesondere an der beweglich gelagerten Greiferrohrklappe, zu Schwierigkeiten führen.The in the DE 10 2008 013 108 A1 disclosed winder even has two of these thread catching nozzles. The first thread catching nozzle is arranged in the region of a paraffining device, since this area is particularly susceptible to contamination. Furthermore, this first thread catching nozzle is arranged so that it detects in particular the end of the upper thread at a yarn breakage. The upper thread is the thread wound on the package. In this way, the formation of so-called drum winding is prevented. A second thread catching nozzle is arranged above a thread tensioner. This thread tensioner is designed to fix the lower thread during a thread break, that is to say the thread withdrawn from the delivery bobbin. In this area, a vacuum-loaded so-called gripper tube is also arranged, which at its end a Closing flap has. The gripper tube transports the lower thread after a thread interruption in the direction of the thread connecting device. The second thread catching nozzle is intended to prevent the thread falling uncontrollably in the direction of the thread tensioner in the event of a cleaner cut or a stress break. An uncontrollably falling thread can lead to difficulties in the region of the gripper tube, in particular on the movably mounted gripper tube flap.

Wie den obigen Erläuterungen zu entnehmen ist, ist die Funktionsfähigkeit einer Fadenfangdüse für den ordnungsgemäßen Betrieb einer Arbeitstelle einer Spulmaschine und für die Qualität der hergestellten Auflaufspulen von besonderer Bedeutung. Es kann jedoch vorkommen, dass eine Fadenfangdüse durch die angesaugten Schmutzpartikel und die angesaugten Fadenreste verstopft und ihre Funktion nicht mehr gewährleistet ist. Es kann weiter vorkommen, dass ein solcher Funktionsausfall der Fadenfangdüse unerkannt bleibt und Auflaufspulen minderer Qualität produziert werden, die nicht für die Weiterverarbeitung geeignet sind und aussortiert werden müssen.As can be seen from the above explanations, the functionality of a thread catching nozzle is of particular importance for the proper operation of a working station of a winding machine and for the quality of the packages that are produced. However, it may happen that a thread catching nozzle is clogged by the sucked dirt particles and the sucked thread residues and their function is no longer guaranteed. It may also happen that such a malfunction of the thread catching nozzle remains undetected and low-quality packages are produced that are not suitable for further processing and must be sorted out.

Es ist daher die Aufgabe der vorliegenden Erfindung, eine einfache Möglichkeit zur Verfügung zu stellen, mit der die Funktionsfähigkeit der Fadenfangdüse an jeder Arbeitsstelle der Spulmaschine ermittelt werden kann.It is therefore the object of the present invention to provide a simple way with which the operability of the thread catching nozzle can be determined at each workstation of the winder.

Die Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Verfahrensanspruches 1 sowie des Vorrichtungsanspruches 8 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.The object is achieved by the characterizing features of the method claim 1 and the device claim 8. Advantageous developments of the invention are the subject of the dependent claims.

Zur Lösung der Aufgabe wird nach einer Spulunterbrechung der Fadenfangdüse ein Faden vorgelegt. Dies kann durch Mittel erfolgen, die für den Fadenverbindungsprozess ohnehin an der Arbeitsstelle vorhanden sind. Danach wird an dem vorgelegten Faden im Abstand zur Mündung der Fadenfangdüse ein freies Fadenende generiert. Wenn anschließend das freie Fadenende in die Fadenfangdüse eingesaugt wird, ist die Funktion der Fadenfangdüse gewährleistet. Deshalb wird erfindungsgemäß das Einsaugen des freien Fadenendes in die Fadenfangdüse überwacht.To solve the problem, a thread is presented after a Spulunterbrechung the thread catching nozzle. This can be done by means take place, which are available for the thread connection process anyway at the workplace. Thereafter, a free yarn end is generated at the presented thread at a distance from the mouth of the thread catching nozzle. Then, when the free end of the thread is sucked into the thread catching nozzle, the function of the thread catching nozzle is ensured. Therefore, according to the invention, the suction of the free end of the thread into the thread-catching nozzle is monitored.

Das erfindungsgemäße Verfahren ermöglicht es auf einfache Weise, die Funktionsfähigkeit der Fadenfangdüse zu überprüfen. Die Überprüfung kann nach einer vorgegebenen Zeit, nach einer vorgegebenen Anzahl von Fadenverbindungsvorgängen oder nach jedem Kreuzspulenwechsel erfolgen. Ein Fehler in der Funktion der Fadenfangdüse wird frühzeitig erkannt und kann behoben werden.The method according to the invention makes it possible in a simple manner to check the functionality of the thread catching nozzle. The check can be made after a predetermined time, after a predetermined number of thread connection operations or after each cheese change. An error in the function of the thread catching nozzle is detected early and can be remedied.

Gemäß einer ersten Ausführungsform des erfindungsgemäßen Verfahrens wird die Anwesenheit des Fadens in der Fadenfangdüse detektiert. Dazu kann ein einfacher Sensor, wie er beispielsweise als Unterfadensensor an Spulmaschinen bereits bekannt ist, in der Fadenfangdüse angeordnet werden.According to a first embodiment of the method according to the invention, the presence of the thread in the thread-trapping nozzle is detected. For this purpose, a simple sensor, as is already known, for example, as a bobbin thread sensor on winding machines, can be arranged in the thread catching nozzle.

Gemäß einer zweiten Ausführungsform des erfindungsgemäßen Verfahrens wird der Faden zusätzlich zur Vorlage der Fadenfangdüse in ein im Fadenlauf befindliches Fadenerfassungsmittel gelegt, bevor das Fadenende auf der der Fadenfangdüse abgewandten Seite des Fadenerfassungsmittels generiert wird. Als Fadenerfassungsmittel ist sowohl ein sogenannter Reiniger, als auch ein einfacher statisch arbeitender Fadenwächter geeignet. Ein Reiniger ist normalerweise im Fadenlauf einer Spulmaschine angeordnet, um während des Spulprozesses die Qualität des Fadens zu überwachen und Fehlerstellen erforderlichenfalls auszureinigen.According to a second embodiment of the method according to the invention, the thread is placed in addition to the presentation of the thread catching nozzle in a yarn thread befindliches thread detection means, before the thread end is generated on the yarn catching nozzle side facing away from the thread detection means. As a thread detection means both a so-called cleaner, as well as a simple statically operating thread monitor is suitable. A cleaner is usually placed in the threadline of a winder to monitor the quality of the thread during the winding process and clean out any imperfections if necessary.

Im Gegensatz dazu detektiert ein Fadenwächter lediglich, ob ein Faden vorhanden ist oder nicht. Für das erfindungsgemäße Verfahren kann also ein Erfassungsmittel verwendet werden, das ohnehin für den normalen Betrieb der Spulmaschine vorhanden ist. Das Einsaugen des Fadenendes in die Fadenfangdüse wird dann erkannt, wenn die Abwesenheit des Fadens in dem Fadenerfassungsmittel detektiert wird.In contrast, a thread monitor only detects whether a thread is present or not. Thus, for the method according to the invention, a detection means can be used which is present anyway for the normal operation of the winding machine. The suction of the thread end into the thread catching nozzle is detected when the absence of the thread in the thread detecting means is detected.

Gemäß einer Weiterbildung des erfindungsgemäßen Verfahrens wird der Faden zusätzlich zur Vorlage der Fadenfangdüse in ein im Fadenlauf befindliches Fadenerfassungsmittel gelegt und vor dem Einsaugen in die Fadenfangdüse die Anwesenheit des Fadens detektiert. Dadurch wird eine zusätzliche Sicherheit bei der Funktionsprüfung der Fadenfangdüse erreicht. Es wird verhindert, dass ein nicht richtig vorgelegter Faden als Fehler der Fadenfangdüse interpretiert wird.According to a development of the method according to the invention, the thread is placed in addition to the presentation of the thread catching nozzle in a yarn thread befindliches thread detection means and detects the presence of the thread before sucking into the thread catching nozzle. As a result, an additional security in the functional testing of the thread catching nozzle is achieved. It is prevented that a not properly presented thread is interpreted as an error of the thread catching nozzle.

Das zur Durchführung des erfindungsgemäßen Verfahrens erforderliche freie Fadenende kann auf einfache Weise dadurch erreicht werden, dass der der Fadenfangdüse vorgelegte Faden mittels einer im Fadenlauf angeordneten Schneideinrichtung geschnitten wird. Solche Schneideinrichtungen sind sowohl am Reiniger als auch an der Fadenverbindungseinrichtung bereits vorhanden.The free end of the thread required for carrying out the method according to the invention can be achieved in a simple manner by cutting the thread presented to the thread catching nozzle by means of a cutting device arranged in the thread run. Such cutting devices are already present both on the cleaner and on the thread connecting device.

Je nach Aufbau der Spulstelle und Anordnung und Anzahl der Fadenfangdüsen kann sowohl der Oberfaden als auch der Unterfaden vorgelegt werden.Depending on the structure of the winding unit and arrangement and number of thread catching nozzles, both the upper thread and the lower thread can be submitted.

Zur Lösung der Aufgabe wird ferner eine Arbeitsstelle einer Spulmaschine zur Durchführung des erfindungsgemäßen Verfahrens mit einer Steuereinrichtung und einer Fadenfangdüse vorgeschlagen. Erfindungsgemäß ist die Steuereinrichtung dazu ausgebildet, Fadenvorlagemittel der Spulstelle nach einer Spulunterbrechung so anzusteuern, dass der Fadenfangdüse ein Faden vorgelegt wird, und eine Schneidvorrichtung zur Generierung eines freies Fadenendes des vorgelegten Fadens anzusteuern. Die Steuereinrichtung ist mit einem Detektionsmittel verbunden und dazu ausgebildet, aus einem Signal des Detektionsmittels das Einsaugen des freien Fadenendes in die Fadenfangdüse zu erkennen.To solve the problem, a workstation of a winding machine for carrying out the method according to the invention with a control device and a thread catching nozzle is also proposed. According to the invention, the control device is to designed to control the thread feeding means of the winding unit after a Spulunterbrechung so that the thread catching nozzle a thread is presented, and to drive a cutting device for generating a free yarn end of the thread presented. The control device is connected to a detection means and designed to detect the suction of the free end of the thread into the thread catching nozzle from a signal of the detection means.

Gemäß einer ersten Ausführungsform ist das Detektionsmittel in der Fadenfangdüse angeordnet und dazu ausgebildet, das in die Fadenfangdüse eingesaugte freie Fadenende zu detektieren.According to a first embodiment, the detection means is arranged in the thread catching nozzle and designed to detect the sucked into the thread catching nozzle free end of the thread.

Gemäß einer zweiten Ausführungsform ist das Detektionsmittel als Reiniger ausgebildet und im Fadenlauf angeordnet.According to a second embodiment, the detection means is designed as a cleaner and arranged in the yarn path.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The invention will be explained in more detail with reference to an embodiment shown in the drawing.

Es zeigt:

  • Fig. 1 eine Arbeitsstelle einer Spulmaschine zur Durchführung erfindungsgemäßen Verfahrens.
It shows:
  • Fig. 1 a workstation of a winder for carrying out the method according to the invention.

In Fig. 1 ist in Seitenansicht schematisch eine Arbeitsstelle 2 einer Spulmaschine 1, im Ausführungsbeispiel ein so genannter Kreuzspulautomat, während des Spulprozesses dargestellt. Derartige Kreuzspulautomaten 1 weisen zwischen ihren (nicht dargestellten) Endgestellen eine Vielzahl gleichartiger Arbeitsstellen 2, sogenannte Spulstellen, auf.In Fig. 1 is a side view schematically a job 2 a winder 1, in the embodiment, a so-called cross-winding machine, shown during the winding process. Such spooling machines 1 have between their (not shown) Endgestellen a variety of similar jobs 2, so-called winding units, on.

Auf diesen Spulstellen 2 werden, wie bekannt und daher nicht näher erläutert, Vorlagespulen, in der Regel auf Ringspinnmaschinen produzierte Spinnkopse 9, die nur relativ wenig Garnmaterial aufweisen, zu großvolumigen Kreuzspulen 11 umgespult. Die fertigen Kreuzspulen 11 werden anschließend mittels eines selbsttätig arbeitenden Serviceaggregates, beispielsweise eines Kreuzspulenwechslers, auf eine maschinenlange Kreuzspulentransporteinrichtung 21 übergeben und zu einer maschinenendseitig angeordneten Spulenverladestation oder dergleichen transportiert.On these winding units 2, as known and therefore not explained in more detail, supply bobbins, usually produced on ring spinning machines spinning cops 9, the only relatively have little yarn material, rewound to large-volume cheeses 11. The finished cheeses 11 are then transferred by means of an automatically operating service unit, such as a cheese changer, on a machine-spooled cross-bobbin transport device 21 and transported to a machine loading side arranged Spulenverladestation or the like.

Solche Kreuzspulautomaten sind außerdem entweder mit einem Rundmagazin ausgestattet, in dem Spinnkopse bevorratet werden können, oder die Kreuzspulautomaten weisen eine Logistikeinrichtung in Form eines Spulen- und Hülsentransportsystems 3 auf. In einem solchen Spulen- und Hülsentransportsystem 3 laufen dann Spinnkopse 9 beziehungsweise Leerhülsen 34 um, die in vertikaler Ausrichtung auf Transporttellern 8 angeordnet sind. Von diesem Hülsentransportsystem 3 sind lediglich die Kopszuführstrecke 4, die reversierend antreibbare Speicherstrecke 5, eine der zu den Spulstellen 2 führenden Quertransportstrecken 6 sowie die Hülsenrückführstrecke 7 dargestellt. Wie angedeutet, werden die angelieferten Spinnkopse 9 dabei zunächst in einer Abspulstellung 10, die sich im Bereich der Quertransportstrecken 6 an den Spulstellen 2 befindet, positioniert und anschließend umgespult.Such spooling machines are also either equipped with a round magazine, can be stored in the spinning cops, or the cheese packages have a logistics device in the form of a coil and sleeve transport system 3. In such a bobbin and tube transport system 3 then run spinning cops 9 and empty tubes 34, which are arranged in a vertical orientation on transport plates 8. Of this sleeve transport system 3, only the Kopszuführstrecke 4, the reversible drivable storage section 5, one of the leading to the winding units 2 transverse transport sections 6 and the sleeve return path 7 are shown. As indicated, the supplied spinning cops 9 are thereby first in an unwinding position 10, which is located in the region of the transverse transport lines 6 at the winding units 2, positioned and then rewound.

Die einzelnen Arbeitsstellen 2 verfügen zu diesem Zweck, wie bekannt und daher nur angedeutet, über verschiedene Fadenüberwachungs- und -behandlungseinrichtungen, die nicht nur gewährleisten, dass die Spinnkopse 9 zu großvolumigen Kreuzspulen 11 umgespult werden können, sondern die auch sicherstellen, dass der Faden 30 während des Umspulvorganges auf Fadenfehler hin überwacht wird und detektierte Fadenfehler ausgereinigt werden. Jede Arbeitsstelle 2 verfügt über eine Steuereinrichtung 40, die über die nur angedeuteten Steuerleitungen mit den Fadenüberwachungs- und -behandlungseinrichtungen verbunden ist.The individual jobs 2 have for this purpose, as is well known and therefore only hinted at different Fadenüberwachungs- and treatment facilities that not only ensure that the spinning cops 9 can be rewound to bulky packages 11, but also ensure that the thread 30th is monitored for thread defects during the rewinding process and detected thread defects are cleared out. Each work station 2 has a control device 40, which only indicated above Control lines is connected to the thread monitoring and treatment facilities.

Die Arbeitsstellen 2 verfügen beispielsweise jeweils über eine Spulvorrichtung 24, die einen Spulenrahmen 18 aufweist, der um eine Schwenkachse 19 beweglich gelagert ist, und mit einer Spulenantriebseinrichtung 26 sowie einer Fadenchangiereinrichtung 28 ausgestattet ist.For example, the work stations 2 each have a winding device 24, which has a creel 18, which is movably mounted about a pivot axis 19, and is equipped with a bobbin drive device 26 and a thread-switching device 28.

Bei dem dargestellten Ausführungsbeispiel liegt die Kreuzspule 11 während des Spulprozesses mit ihrer Oberfläche auf einer Antriebswalze 26 und wird von dieser über Reibschluss mitgenommen. Die Antriebswalze 26 wird dabei über eine drehzahlregelbare, reversierbare (nicht dargestellte) Antriebseinrichtung beaufschlagt.In the illustrated embodiment, the cheese 11 is located during the winding process with its surface on a drive roller 26 and is carried along by this frictional engagement. The drive roller 26 is acted upon via a variable speed, reversible (not shown) drive means.

Die Changierung des Fadens 30 beim Auflaufen auf die Kreuzspule 11 erfolgt mittels einer Fadenchangiereinrichtung 28, die im vorliegenden Ausführungsbeispiel einen Fingerfadenführer 29 aufweist.The traversing of the thread 30 during emergence onto the cross-wound bobbin 11 takes place by means of a thread-changing device 28, which has a finger thread guide 29 in the present exemplary embodiment.

Die Spulstelle 2 verfügt des Weiteren über eine Fadenverbindungseinrichtung, vorzugsweise eine pneumatisch arbeitende Spleißeinrichtung 13 mit einer Schneideinrichtung 43, einen Unterfadensensor 22, einen Fadenspanner 14, einen Fadenreiniger 15 mit einer Fadenschneideinrichtung 17, einen Fadenzugkraftsensor 20 sowie eine Paraffiniereinrichtung 16.The winding unit 2 furthermore has a thread connecting device, preferably a pneumatically operating splicing device 13 with a cutting device 43, a lower thread sensor 22, a thread tensioner 14, a thread cleaner 15 with a thread cutting device 17, a yarn tension force sensor 20 and a waxing device 16.

Außerdem ist die Spulstelle 2 mit einer Saugdüse 12 sowie mit einem Greiferrohr 25 ausgestattet, die beide definiert mit Unterdruck beaufschlagbar sind. Die Saugdüse 12 und das Greiferohr 25 sind dabei an eine maschinenlange Unterdrucktraverse 32 des Kreuzspulautomaten 1 angeschlossen, die ihrerseits mit einer Unterdruckquelle 33 in Verbindung steht.In addition, the winding unit 2 is equipped with a suction nozzle 12 and a gripper tube 25, both defined are acted upon by negative pressure. The suction nozzle 12 and the gripper tube 25 are connected to a machine-long vacuum cross-beam 32 of the cheese winder 1, which in turn is in communication with a vacuum source 33.

Im dargestellten Ausführungsbeispiel ist außerdem im Bereich der Paraffiniereinrichtung 16 eine bezüglich des Fadenlaufweges etwas nach hinten versetzt angeordnete erste Fadenfangdüse 23 so positioniert, dass der Faden 30 während des Spulprozesses vor ihrer Mündung 42 läuft. Die Fadenfangdüse 23 ist über eine Luftweiche 27 ebenfalls an die Unterdrucktraverse 32 angeschlossen. Die Luftweiche 27 weist dabei einen Anschlussstutzen 35 für die erste Fadenfangdüse 23 sowie einen relativ voluminösen Entlastungsstutzen 36 auf, dessen Mündung während des regulären Spulbetriebes durch die in Wartestellung P positionierte Saugdüse 12 luftdicht verschlossen ist. Ein Öffnen des Entlastungsstutzens 36 durch Hochschwenken der Saugdüse 12. sorgt dafür, dass der an der Fadenfangdüse 23 anstehende Unterdruck zusammenbricht. Eine genauere Beschreibung der Funktion der Luftweiche 27 findet sich in der DE 10 2005 001 093 A1 .In the illustrated embodiment also in the area of the waxing device 16 with respect to the yarn path slightly offset backwards arranged first thread catching nozzle 23 is positioned so that the thread 30 runs during the winding process before its mouth 42. The thread-catching nozzle 23 is likewise connected to the vacuum cross-member 32 via an air switch 27. The air switch 27 in this case has a connecting piece 35 for the first thread catching nozzle 23 and a relatively voluminous discharge port 36, the mouth of which is hermetically sealed during the regular winding operation by the suction nozzle P positioned in the waiting position P. Opening the discharge nozzle 36 by pivoting up the suction nozzle 12 ensures that the negative pressure applied to the thread-catching nozzle 23 collapses. A more detailed description of the function of the air switch 27 can be found in the DE 10 2005 001 093 A1 ,

An die Luftweiche 27 ist über eine Pneumatikleitung 38 außerdem eine zweite Fadenfangdüse 37 angeschlossen. Die Mündung 31 dieser zweiten Fadenfangdüse 37 ist in Fadenlaufrichtung F knapp oberhalb des Fadenspanners 14, ebenfalls dicht hinter dem Fadenlaufweg, positioniert. An der zweiten Fadenfangdüse 37 ist ein Fadenwächter 41 angeordnet. Dieser Fadenwächter 41 ist dazu ausgebildet, die Anwesenheit eines in die Fadenfangdüse 37 eingesaugten Fadens zu detektieren.To the air switch 27, a second thread catching nozzle 37 is also connected via a pneumatic line 38. The mouth 31 of this second thread-catching nozzle 37 is positioned in the thread running direction F just above the thread tensioner 14, likewise close behind the thread running path. At the second thread catching nozzle 37, a thread monitor 41 is arranged. This thread monitor 41 is designed to detect the presence of a sucked into the thread catching nozzle 37 thread.

Zur Überprüfung der Funktionsfähigkeit der Fadenfangdüsen ist eine Spulunterbrechung erforderlich.To check the functionality of the thread catching nozzles a winding interruption is required.

Zur Funktionsprüfung der ersten Fadenfangdüse 23 wird dieser der Oberfaden vorgelegt. Dazu schwenkt die Saugdüse 12 aus ihrer Wartestellung P in Richtung der Kreuzspule 11 und erfasst den auf die Kreuzspule 11 nach der Spulunterbrechung aufgelaufenen Faden und schwenkt danach wieder in die Wartestellung P zurück. Dabei legt die Saugdüse 12 den Faden in den Reiniger 15 und in die Fadenverbindungseinrichtung 13 ein. Der Reiniger 15 detektiert zunächst das korrekte Vorlegen des Fadens. Wenn der Faden von dem Reiniger 15 nicht detektiert wird, wird der Fadenerfassungsvorgang der Saugdüse 12 wiederholt. Sobald die Saugdüse 12 ihre Wartestellung P wieder erreicht hat. Wird der zuvor geöffnete Entlastungsstutzen 36 wieder geschlossen und die Fadenfangdüse 23 mit Unterdruck beaufschlagt. Der Faden wird nun von der Fadenschneideinrichtung 17 des Fadenreinigers 15 oder von der Schneideinrichtung 43 der Fadenverbindungseinrichtung 13 geschnitten. Der abgeschnittene Faden wird von der Saugdüse 12 eingesaugt. Es ist von Funktionsfähigkeit der Fadenfangdüse 23 abhängig, was mit dem freien Fadenende des auf der Kreuzspule aufgespulten Fadens passiert. Wenn die Fadenfangdüse in Ordnung ist, wird das freie Fadenende von dieser aufgesaugt. Der Faden liegt dann nicht mehr im Reiniger 15. Der Reiniger 15 detektiert die Abwesenheit des Garns. Die Signale werden in der Steuereinrichtung 40, die auch die Vorlage des Fadens gesteuert hat, ausgewertet und es wird die Funktionsfähigkeit der Fadenfangsdüse 23 angezeigt. Wenn die Fadenfangdüse 23 nicht in Ordnung ist, wird der Faden nicht eingesaugt und verbleibt im Reiniger 15. Die Anwesenheit des Fadens wird vom Reiniger 15 erfasst. Die Steuereinrichtung 40, die das Signal des Reinigers 15 auswertet, generiert dann ein Fehlersignal. Der in der Fadenfangdüse 23 gemäß Fig. 1 angeordnete Fadenwächter 44 ist nur optional und bei der beschriebenen Funktionsprüfung nicht erforderlich. Alternativ kann jedoch das Einsaugen des freien Fadenendes in die Fadenfangdüse 23 mit dem Fadenwächter 44 detektiert werden.For functional testing of the first thread-catching nozzle 23, it is presented to the upper thread. For this purpose, the suction nozzle 12 pivots from its waiting position P in the direction of the cheese 11 and detects the accumulated on the cheese 11 after the Spulunterbrechung thread and then pivots back to the waiting position P. In this case, the suction nozzle 12 sets the thread in the cleaner 15 and in the thread connecting device 13 a. The cleaner 15 first detects the correct presentation of the thread. If the thread is not detected by the cleaner 15, the thread-detecting operation of the suction nozzle 12 is repeated. As soon as the suction nozzle 12 has reached its waiting position P again. If the previously opened relief nozzle 36 is closed again and the thread-catching nozzle 23 is subjected to negative pressure. The thread is then cut by the thread cutting device 17 of the thread cleaner 15 or by the cutting device 43 of the thread connecting device 13. The cut thread is sucked by the suction nozzle 12. It depends on the operability of the thread catching nozzle 23, which happens to the free end of the thread wound on the cross wound bobbin. If the thread catching nozzle is in order, the free end of the thread is absorbed by this. The thread is then no longer in the cleaner 15. The cleaner 15 detects the absence of the yarn. The signals are evaluated in the control device 40, which has also controlled the presentation of the thread, and it is the functionality of the thread catching nozzle 23 is displayed. If the thread catching nozzle 23 is not in order, the thread is not sucked in and remains in the cleaner 15. The presence of the thread is detected by the cleaner 15. The control device 40, which evaluates the signal of the cleaner 15, then generates an error signal. The in the thread catching nozzle 23 according to Fig. 1 arranged thread monitor 44 is only optional and not required in the described functional test. Alternatively, however, the sucking in of the free Thread end are detected in the thread catching nozzle 23 with the thread monitor 44.

Die Funktion der zweiten Fadenfangdüse 37 wird auf ähnliche Weise überprüft. Die Abläufe werden wieder mittels der Steuereinrichtung 40 gesteuert und ausgewertet. Bei einer Spulunterbrechung wird der Unterfaden im Fadenspanner 14 gehalten. Das Greiferrohr 25 schwenkt in eine Aufnahmeposition und saugt den Unterfaden an. Der Fadenspanner 14 wird geöffnet, das Greiferrohr 25 schwenkt nach oben und legt den Faden in die Fadenverbindungseinrichtung 13 ein. Der Faden liegt dann vor der Mündung 31 der zweiten Fadenfangdüse 37. Das korrekte Vorlegen des Faden vor die Mündung 31 wird bei der beschriebenen Ausführungsform nicht überprüft. Dies wäre jedoch durch eine Anordnung eines Fadenwächters oder Reinigers an geeigneter Stelle im regulären Fadenlauf ohne weiteres möglich. Für die weitere Funktionsprüfung ist es erforderlich, dass die Fadenfangdüse 37 mit Unterdruck beaufschlagt wird. Die Saugdüse 12 muss sich also in der Wartestellung P befinden, damit der Entlastungsstutzen 36 geschlossen ist. Der in die Fadenverbindungseinrichtung 13 eingelegte Faden wird von der Schneideinrichtung 43 der Fadenverbindungseinrichtung 13 geschnitten. Der abgeschnittene Faden wird vom Greiferrohr 25 eingesaugt. Das freie Ende des von dem Spinnkops 9 kommenden Fadens wird bei ordnungsgemäßer Funktion von der zweiten Fadenfangdüse 37 einsaugt. Der Fadenwächter 41 der zweiten Fadenfangdüse 37 detektiert die Anwesenheit des Fadens in der zweiten Fadenfangdüse 37. Das Signal wird an die Steuereinrichtung 40 weitergegeben, die die Funktionsfähigkeit der zweiten Fadenfangdüse 37 ermittelt. Wenn der Fadenwächter keinen Faden detektiert, generiert die Steuereinrichtung 40 eine Fehlermeldung.The function of the second thread catching nozzle 37 is checked in a similar manner. The processes are again controlled and evaluated by means of the control device 40. In a Spulunterbrechung the lower thread is held in the thread tensioner 14. The gripper tube 25 pivots into a receiving position and sucks the lower thread. The thread tensioner 14 is opened, the gripper tube 25 pivots upward and sets the thread in the thread connecting device 13 a. The thread is then in front of the mouth 31 of the second thread catching nozzle 37. The correct presentation of the thread in front of the mouth 31 is not checked in the described embodiment. However, this would be readily possible by an arrangement of a thread monitor or cleaner at a suitable point in the regular yarn path. For the further functional test, it is necessary that the thread catching nozzle 37 is subjected to negative pressure. The suction nozzle 12 must therefore be in the waiting position P, so that the discharge nozzle 36 is closed. The thread inserted into the thread connecting device 13 is cut by the cutting device 43 of the thread connecting device 13. The cut thread is sucked in by the gripper tube 25. The free end of the coming of the spinning cop 9 thread is sucked in with proper function of the second thread catching nozzle 37. The thread monitor 41 of the second thread catching nozzle 37 detects the presence of the thread in the second thread catching nozzle 37. The signal is transmitted to the control device 40, which determines the operability of the second thread catching nozzle 37. If the thread monitor does not detect a thread, the control device 40 generates an error message.

Claims (10)

Verfahren zum Betreiben einer Arbeitsstelle (2) einer Spulmaschine (1) mit einer Fadenfangdüse (23, 37), die benachbart zum Lauf des Fadens (30) angeordnet ist, mit Unterdruck beaufschlagt wird und eine Saugwirkung auf den vor ihrer Mündung (42, 31) laufenden Faden (30) ausübt, dadurch gekennzeichnet,
dass nach einer Spulunterbrechung der Fadenfangdüse (23, 37) ein Faden vorgelegt wird,
dass an dem vorgelegten Faden im Abstand zur Mündung (42, 31) der Fadenfangdüse (23, 37) ein freies Fadenende generiert wird und
dass das anschließende Einsaugen des freien Fadenendes in die Fadenfangdüse (23, 37) überwacht wird.Method for operating a work station (2) of a winding machine (1) with a thread catching nozzle (23, 37) which is arranged adjacent to the run of the thread (30), subjected to negative pressure and a suction action on the front of its mouth (42, 31 ) running thread (30), characterized
that after a winding interruption of the thread catching nozzle (23, 37) a thread is presented,
that at the presented thread at a distance from the mouth (42, 31) of the thread catching nozzle (23, 37) a free yarn end is generated and
that the subsequent sucking of the free thread-end in the Fadenfangdüse (23, 37) is monitored. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Anwesenheit des Fadens in der Fadenfangdüse (23, 37) detektiert wird.A method according to claim 1, characterized in that the presence of the thread in the thread catching nozzle (23, 37) is detected. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Faden zusätzlich zur Vorlage der Fadenfangdüse (23) in ein im Fadenlauf befindliches Fadenerfassungsmittel (15) gelegt wird, bevor das Fadenende auf der der Fadenfangdüse (23) abgewandten Seite des Fadenerfassungsmittels (15) generiert wird und anschließend die Abwesenheit des Fadens im Fadenerfassungsmittels (15) detektiert wird.A method according to claim 1, characterized in that the thread in addition to the presentation of the thread catching nozzle (23) is placed in a thread running Fadenerfassungsmittel (15) before the thread end on the thread catching nozzle (23) facing away from the thread detection means (15) is generated and then the absence of the thread in the thread detecting means (15) is detected. Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Faden zusätzlich zur Vorlage der Fadenfangdüse (23) in ein im Fadenlauf befindliches Fadenerfassungsmittel (15) gelegt wird und vor dem Einsaugen in die Fadenfangdüse die Anwesenheit des Fadens detektiertMethod according to one of the preceding claims, characterized in that the thread in addition to the presentation of the thread catching nozzle (23) is placed in a thread running thread detection means (15) and detects the presence of the thread before sucking into the thread catching nozzle Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das freie Fadenende mittels einer im Fadenlauf angeordneten Schneideinrichtung (17, 43) generiert wird.Method according to one of the preceding claims, characterized in that the free end of the thread is generated by means disposed in the yarn path cutting means (17, 43). Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Fadenfangdüse (23) der mit einer Auflaufspule (11) verbundene Oberfaden vorgelegt wird.Method according to one of claims 1 to 5, characterized in that the thread catching nozzle (23) is presented to the upper thread connected to a package (11). Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Fadenfangdüse (37) der mit einer Ablaufspule (9) verbundene Unterfaden vorgelegt wird.Method according to one of claims 1 to 5, characterized in that the thread-catching nozzle (37) is presented to the lower thread connected to a delivery reel (9). Arbeitsstelle einer Spulmaschine zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 7 mit einer Steuereinrichtung (40) und einer Fadenfangdüse(23, 37), die benachbart zum Lauf des Fadens angeordnet ist, mit Unterdruck beaufschlagbar ist und dazu ausgebildet ist, eine Saugwirkung auf den vor ihrer Mündung (42, 31) laufenden Faden auszuüben, dadurch gekennzeichnet,
dass die Steuereinrichtung (40) dazu ausgebildet ist, Fadenvorlagemittel (12, 25) der Spulstelle nach einer Spulunterbrechung so anzusteuern, dass der Fadenfangdüse (23, 37) ein Faden vorgelegt wird, und eine Schneidvorrichtung (17) zur Generierung eines freies Fadenendes des vorgelegten Fadens anzusteuern, dass die Steuereinrichtung (40) mit einem Detektionsmittel (15, 41, 44) verbunden ist und dazu ausgebildet ist, aus einem Signal des Detektionsmittels (15, 41, 44) das Einsaugen des freien Fadenendes in die Fadenfangdüse (23, 37) zu erkennen.Workstation of a winder for carrying out the method according to one of claims 1 to 7 with a control device (40) and a thread catching nozzle (23, 37), which is arranged adjacent to the barrel of the thread, can be acted upon by negative pressure and is adapted to a suction effect to exercise the thread running in front of its mouth (42, 31), characterized
in that the control device (40) is designed to control thread feeding means (12, 25) of the winding station after a winding interruption so that a thread is presented to the thread catching nozzle (23, 37), and a cutting device (17) for generating a free thread end of the presented To control thread that the control device (40) with a detection means (15, 41, 44) is connected and is adapted to from a signal of the detection means (15, 41, 44) sucking the free end of the thread in the thread catching nozzle (23, 37 ) to recognize. Arbeitsstelle nach Anspruch 8, dadurch gekennzeichnet, dass das Detektionsmittel (41, 44) in der Fadenfangdüse (23, 37) angeordnet ist und dazu ausgebildet ist, das in die Fadenfangdüse eingesaugte freie Fadenende zu detektieren.Workstation according to claim 8, characterized in that the detection means (41, 44) in the thread catching nozzle (23, 37) is arranged and adapted to detect the sucked into the thread catching nozzle free end of the thread. Arbeitsstelle nach Anspruch 8, dadurch gekennzeichnet, dass das Detektionsmittel (15) als Reiniger ausgebildet und im Fadenlauf angeordnet ist.Workstation according to claim 8, characterized in that the detection means (15) formed as a cleaner and is arranged in the yarn path.
EP20100014645 2009-12-18 2010-11-16 Procedure for operating a workstation of a winding machine and workstation of a winding machine Active EP2338818B1 (en)

Applications Claiming Priority (1)

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DE102009058827A DE102009058827A1 (en) 2009-12-18 2009-12-18 Method for operating a workstation of a winder and workstation of a winder

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DE102009058827 Previously-Filed-Application 2009-12-18

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EP2338818A2 true EP2338818A2 (en) 2011-06-29
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CN103839818B (en) * 2012-11-25 2018-01-02 中国科学院微电子研究所 Method, semi-conductor device manufacturing method
DE102013003285A1 (en) * 2013-02-26 2014-08-28 Saurer Germany Gmbh & Co. Kg Method for optimizing the negative pressure in a suction-air system of a textile machine producing cross-cheeses
JP6366724B2 (en) * 2013-10-26 2018-08-01 エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトＯｅｒｌｉｋｏｎ Ｔｅｘｔｉｌｅ ＧｍｂＨ ＆ Ｃｏ． ＫＧ Godet and method for controlling godet
DE102014008735A1 (en) * 2014-06-12 2015-12-17 Saurer Germany Gmbh & Co. Kg Method and device for controlling the negative pressure on a thread catching or cleaning nozzle of a workstation of a package winding fabricating machine
JP2017071498A (en) * 2015-10-09 2017-04-13 村田機械株式会社 Automatic winder
CN112390079B (en) * 2020-11-27 2023-06-30 铜陵松宝智能装备股份有限公司 Feeding method of cone winder
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CN102101611A (en) 2011-06-22
EP2338818B1 (en) 2013-07-31
DE102009058827A1 (en) 2011-06-22
EP2338818A3 (en) 2012-01-18
CN102101611B (en) 2014-09-10

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