EP1708947A1 - Device for detecting a thread - Google Patents

Device for detecting a thread

Info

Publication number
EP1708947A1
EP1708947A1 EP04804371A EP04804371A EP1708947A1 EP 1708947 A1 EP1708947 A1 EP 1708947A1 EP 04804371 A EP04804371 A EP 04804371A EP 04804371 A EP04804371 A EP 04804371A EP 1708947 A1 EP1708947 A1 EP 1708947A1
Authority
EP
European Patent Office
Prior art keywords
thread
measuring field
suction pipe
recess
suction
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
EP04804371A
Other languages
German (de)
French (fr)
Other versions
EP1708947B1 (en
Inventor
Erwin Peters
Thomas Wegmann
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
Saurer GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP1708947A1 publication Critical patent/EP1708947A1/en
Application granted granted Critical
Publication of EP1708947B1 publication Critical patent/EP1708947B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/036—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the combination of the detecting or sensing elements with other devices, e.g. stopping devices for material advancing or winding mechanism
    • 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
    • B65H67/085—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement end-finding at the take-up package, e.g. by suction and reverse package rotation
    • 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 device for recognizing a thread in the detection of thread ends in an air-flowed intake manifold with a sensor device comprising a transmitter and a receiver for detecting a thread with the features of the preamble of claim 1.
  • Such suction tubes are equipped, for example, with devices for recognizing a thread in order to detect the detection of the winding spool end or the winding spool end that is to be fed to a thread connecting device at a winding point.
  • Suction tubes are also equipped with such a device, which are used on bobbin preparation devices in order to determine whether the thread which is then to be placed at a suitable location for later detection in the winding position could be detected. Depending on this test result, further steps are then initiated, depending on the type of preparation device.
  • a device for recognizing a thread in an air-flow channel is known.
  • the channel is part of a suction device for detecting the thread on the winding package at a winding point.
  • On a pipe elbow mutually opposite, mutually aligned openings for receiving a sensor arrangement formed from a radiation source and a receiver are present in the pipe wall.
  • This sensor arrangement forms a light barrier crossing the channel, the interruption of which by the Thread is detectable.
  • the facing optics in the form of lenses become dirty depending on the load on the thread with impurities after a certain period of use, as a result of which the reliability of the measurement deteriorates. This pollution is even stronger on one pipe elbow than on the other duct parts due to the air flow.
  • the generic DE 43 08 058 AI also describes a device in particular for use on bobbin preparation devices or feeders to a thread connecting device, the channel cross section being monitored with the aid of a sensor device.
  • the transmitter and the receiver of the sensor arrangement are arranged outside aligned openings of a channel. There is an air gap between the exit of the openings and the radiation source or the receiver.
  • the external sensor system prevents contact with the thread or with the suction air flow surrounding it in the duct. Dirt carried along by the thread, in particular finishing, no longer reaches the sensors, but the breakthroughs through the wall of the suction channel and the associated edges can lead to disturbances in the air flow in the suction channel and the formation of dirt accumulations, for example the formation of fluff piles, entail.
  • the distance between the transmitter and receiver is at least as large as the channel diameter. This makes it more complex Sensor device required if you do not want to compromise on thread detection.
  • the thread is guided in such a way that it moves at a distance from the wall of the suction tube in the measuring field and can be positioned well in the measuring field.
  • the thread can be recognized particularly easily and reliably due to its "fluttering movement" transverse to its direction of travel.
  • the transmitter and receiver are arranged in such a way that the recess runs between them. This makes it possible to achieve a distance between the transmitter and receiver that is significantly smaller than the diameter This enables the transmitter and receiver to be used in a simple, inexpensive design, with reliable thread detection being ensured.
  • the measuring field lies essentially outside the curvature of the suction tube, a distance between the thread and the base of the suction tube can be easily achieved within the measuring field located in the region of the depression. Even if it is possible within the scope of the invention that the measuring field between the transmitter and receiver runs through mutually aligned bores which break through the wall of the suction pipe, it is advantageous to so the suction pipe in the area of the sensor device to train that there are no disturbances due to openings in the wall of the suction pipe, on which deposits can also form.
  • the suction pipe is transparent. A cost-effective design of a transparent suction pipe is made possible by the use of polypropylene as a transparent material.
  • the recess is narrow, not only can a small distance be set between the transmitter and receiver, but the wall of the suction pipe is cleaned by the movement of the thread and thus counteracts the deposition of dirt.
  • FIG. 1 is a simplified illustration of a winding unit with a suction nozzle positioned in front of the package
  • FIG. 2 shows a section through an intake pipe through which air flows, in the area of an intake pipe bend with sensor device and recess,
  • FIG. 3 shows a cross section AA through the intake manifold of FIG. 2.
  • FIG. 1 shows a winding station of a textile machine producing cross-wound bobbins.
  • FIG. 1 shows a situation at the winding unit 1 in which the thread run has been interrupted after a thread cut due to a thread defect and measures for removing the thread defect, a so-called cleaning, have been initiated.
  • the thread path during the operation of the winding unit 1 is indicated by the dashed line 2.
  • the thread is drawn off from a thread source, not shown.
  • the thread source can be a pay-off spool or a spinning device.
  • the thread is wound on a package 3 serving as a package.
  • the defective piece of thread which has run onto the cheese 3, must be completely unwound from it so that when the thread is cut, the thread defect is in the cut thread part.
  • the cheese 3 has already been lowered back onto the winding roller 4 in the illustration in FIG. 1.
  • the cross-wound bobbin 3 is held by a bobbin holder 5 which is mounted in a rotary joint 6 in the machine frame 7, which is only indicated here.
  • the actuation of the drive of the coil holder 5, not shown here, is controlled by the control device 8 via the line 9.
  • the winding roller 4 is driven by a drive, not shown here, which is also connected to the control device 8 via the line 10.
  • the winding roller 4 In order to unwind the defective thread piece, the winding roller 4 is driven counter to the winding direction, corresponding to the arrow 11, and drives the cross-wound bobbin 3 with its peripheral surface 12 in the unwinding direction 13.
  • a suction nozzle 14 with its mouth 15 has been positioned in front of the peripheral surface 12 of the cheese 3.
  • the suction nozzle 14 is mounted in the swivel joint 16 in the machine frame 7, the connection to the central suction duct 18 of the vacuum supply of the textile machine being made in the swivel joint 16 via a suction pipe 17.
  • the swiveling movement of the suction nozzle 14 is carried out by a drive, not shown here, which is connected to the control device 8 via a line 19.
  • the control device 8 also controls a valve (not shown here), as a result of which the suction pipe 17 is subjected to a vacuum from the suction channel 18.
  • a valve not shown here
  • the thread end 21 has reached a sensor device 22 arranged in the suction pipe 17.
  • the presence of the thread end 21 in the suction pipe 17 is detected by the sensor device 22 and reported to the control device 8 via the line 23.
  • the thread end 21 is checked whether the thread end 21 has already been unwound from the package so far at this point in time that the error detected by the cleaner 24 has already been unwound by the cheese 3. If this is the case, the unwinding and suctioning of the thread end 21 is stopped.
  • the thread end 21 is held in the suction nozzle 14 by the negative pressure.
  • FIG. 2 shows a curvature 25 of the suction pipe 17 with the sensor device 22.
  • the measuring field 26 of the sensor device 22 is arranged in the vicinity of the smaller radius of the curvature 25 of the suction pipe 17.
  • the suction pipe 17 has a recess 27 oriented in the running direction.
  • the thread end 21 is detected by the air flow flowing in the direction of arrow 28 and tightened in the region of the recess 27.
  • the thread end 21 lies against the part of the wall 29 of the suction pipe 17 which is located at the smaller radius, while in the tightened state it is spaced from the base 30 of the depression 27.
  • the recess 27 begins in
  • FIG 3 shows the suction pipe 17 and the sensor device 22 in the view AA of Figure 2.
  • the sensor device 22 has a transmitter 31 and a receiver 32 and two holding arms 33.
  • the transmitter 31 is the light source and the Receiver 32 designed as a photo sensor.
  • the holding arms 33 are at least partially elastic. Such an embodiment of the sensor device 22 can be quickly positioned by simply plugging it onto the suction pipe 17.
  • the sensor device 22 is positioned such that the depression 27 is located in the measuring field 26 between the transmitter 31 and the receiver 32.
  • the thread end 21 runs in the recess 27.
  • the distance between the transmitter 31 and the receiver 32 is substantially smaller than the diameter of the suction tube 17. The proximity of the transmitter 31 and receiver 32 always ensures reliable detection of the thread end.
  • the air flow can move the thread end 21 transversely to the running direction. This movement makes use of an alternative embodiment of the sensor device 22, in which the sensor device 22 is designed as a motion detector.
  • the thread end 21 can graze the side walls of the recess 27 by its movements transversely to the running direction or come so close to them that the surface of the suction pipe 17 is cleaned in this area. This counteracts soiling of the surface in the measuring field 26.
  • the suction pipe 17 can, for example, be designed such that it has an outer diameter of 50 mm and a wall thickness of 2 mm, the distance between the side walls of the depression 27 being 6 mm.
  • the suction pipe 17 according to the invention can be produced from transparent polypropylene in a particularly cost-effective manner.
  • the suction pipe 17 can also be designed such that the cross section of the suction pipe 17 in the pipe section which has the depression 27 is kept largely the same as that of the pipe sections with a circular cross section. If, in the course of the air flow in the intake manifold 17, there is a point with a smaller or the narrowest cross section downstream of the measuring field 26, the thread end 21 in the measuring field 26 is subjected to thread tension particularly well.
  • the recess 27 can begin well before the measuring field 26 in the suction pipe 17 and end far after the measuring field 26 in order to facilitate a very gradual change in the cross-sectional shape of the suction pipe 17. With a gradual change in the cross-sectional shape, the air flow is not or hardly disturbed.
  • the detection of the thread end 21 is improved by means of the device according to the invention. This contributes to a higher productivity of the textile machine, because the faster and more reliably the detection of the thread end 21 can take place, the sooner the phases of the process following, for example, a piecing process can be started and the less the risk of having to repeat the entire piecing process , because the thread end 21 was not or only insufficiently detected by the suction nozzle 14.
  • thread end encompasses the section of the thread which has been pulled off the cheese 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Looms (AREA)

Abstract

The device is intended for the detection of a thread during the detection of the ends of threads (21) in suction pipe (17) crossflown by air, comprising a sensor device (22) having a transmitter (31) and a receiver (32) in a textile machine that produces cross-wound bobbins. A measuring field (26) is formed between the transmitter (31) and the receiver (32). The suction pipe has a curvature in the area of the measuring field (26). The measuring field (26) is arranged in the proximity of the smaller radius of the suction pipe (17), which has a recess (27) oriented in the running direction of the suction pipe (17) in order to form the measuring field (26). The suction pipe (17) is curved upstream and downstream of the measuring field (26) in such a way that the detected thread is tensed inside the recess (27) in such a manner that it is spaced at least partly from the bottom of the recess (27) in the measuring field (26), thereby making it possible to easily and reliably detect the thread.

Description

Beschreibung:Description:
Vorrichtung zum Erkennen eines FadensDevice for recognizing a thread
Die Erfindung betrifft eine Vorrichtung zum Erkennen eines Fadens bei der Erfassung von Fadenenden in einem luftdurchströmten Saugrohr mit einer einen Sender und einen Empfänger umfassenden Sensoreinrichtung zum Erkennen eines Fadens mit den Merkmalen des Oberbegriffes des Anspruches 1.The invention relates to a device for recognizing a thread in the detection of thread ends in an air-flowed intake manifold with a sensor device comprising a transmitter and a receiver for detecting a thread with the features of the preamble of claim 1.
Derartige Saugrohre werden beispielsweise mit Vorrichtungen zum Erkennen eines Fadens ausgestattet, um die Erfassung des auflaufspulenseitigen oder des ablaufspulenseitigen Fadenendes zu detektieren, das einer Fadenverbindungseinrichtung an einer Spulstelle zuzuführen ist. Ebenso werden Saugrohre mit einer solchen Vorrichtung ausgestattet, die an Kopsvorbereitungseinrichtungen eingesetzt werden, um festzustellen, ob der Faden, der dann an geeigneter Stelle für die spätere Erfassung in der Spulstelle bereitgelegt werden soll, erfaßt werden konnte. In Abhängigkeit von diesem Prüfergebnis werden dann je nach Art der Vorbereitungseinrichtung weitere Schritte eingeleitet.Such suction tubes are equipped, for example, with devices for recognizing a thread in order to detect the detection of the winding spool end or the winding spool end that is to be fed to a thread connecting device at a winding point. Suction tubes are also equipped with such a device, which are used on bobbin preparation devices in order to determine whether the thread which is then to be placed at a suitable location for later detection in the winding position could be detected. Depending on this test result, further steps are then initiated, depending on the type of preparation device.
Durch die DE 25 31 044 AI ist eine Vorrichtung zum Erkennen eines Fadens in einem luftdurchströmten Kanal bekannt. Der Kanal ist Bestandteil einer Saugeinrichtung zur Erfassung des auflaufspulenseitigen Fadens an einer Spulstelle. An einem Rohrknie sind in der Rohrwand einander gegenüberliegende, zueinander fluchtende Öffnungen zur Aufnahme einer aus einer Strahlungsquelle und einem Empfänger gebildete Sensoranordnung vorhanden. Diese Sensoranordnung bildet eine den Kanal durchquerende Lichtschranke aus, deren Unterbrechung durch den Faden erfaßbar ist. Die einander zugewandten Optiken in Form von Linsen verschmutzen in Abhängigkeit von der Belastung des Fadens mit Verunreinigungen nach einer bestimmten Einsatzdauer, wodurch die Zuverlässigkeit des Messens nachläßt. Diese Verschmutzung ist aufgrund der Luftführung an einem Rohrknie noch stärker als an den übrigen Kanalteilen.From DE 25 31 044 AI a device for recognizing a thread in an air-flow channel is known. The channel is part of a suction device for detecting the thread on the winding package at a winding point. On a pipe elbow, mutually opposite, mutually aligned openings for receiving a sensor arrangement formed from a radiation source and a receiver are present in the pipe wall. This sensor arrangement forms a light barrier crossing the channel, the interruption of which by the Thread is detectable. The facing optics in the form of lenses become dirty depending on the load on the thread with impurities after a certain period of use, as a result of which the reliability of the measurement deteriorates. This pollution is even stronger on one pipe elbow than on the other duct parts due to the air flow.
Auch die gattungsbildende DE 43 08 058 AI beschreibt eine Vorrichtung insbesondere für den Einsatz an Kopsvorbereitungseinrichtungen oder Zubringern zu einer Fadenverbindungseinrichtung, wobei der Kanalquerschnitt mit Hilfe einer Sensoreinrichtung überwacht wird. Der Sender und der Empfänger der Sensoranordnung sind außerhalb von zueinander fluchtenden Öffnungen eines Kanals angeordnet. Zwischen dem Austritt der Öffnungen und der Strahlungsquelle beziehungsweise dem Empfänger ist jeweils ein Luftspalt vorhanden. Durch die außenliegende Sensorik wird ein Kontakt mit dem Faden beziehungsweise mit der ihn umgebenen Saugluftströmung im Kanal vermieden. Vom Faden mitgeführter Schmutz, insbesondere Avivage, gelangt dadurch zwar nicht mehr zur Sensorik, doch die Durchbrüche durch die Wand des Saugkanals sowie die damit verbundenen Kanten können zu Störungen der Luftströmung im Saugkanal führen und die Bildung von Schmutzansammlungen, zum Beispiel die Bildung von Flusenhaufen, nach sich ziehen.The generic DE 43 08 058 AI also describes a device in particular for use on bobbin preparation devices or feeders to a thread connecting device, the channel cross section being monitored with the aid of a sensor device. The transmitter and the receiver of the sensor arrangement are arranged outside aligned openings of a channel. There is an air gap between the exit of the openings and the radiation source or the receiver. The external sensor system prevents contact with the thread or with the suction air flow surrounding it in the duct. Dirt carried along by the thread, in particular finishing, no longer reaches the sensors, but the breakthroughs through the wall of the suction channel and the associated edges can lead to disturbances in the air flow in the suction channel and the formation of dirt accumulations, for example the formation of fluff piles, entail.
Durch die Öffnungen wird Falschluft in den Saugkanal eingezogen, was zu einem Leistungsverlust der Saugvorrichtung führt .False air is drawn into the suction channel through the openings, which leads to a loss of performance of the suction device.
Der Abstand zwischen Sender und Empfänger ist mindestens so groß wie der Kanaldurchmesser. Dies macht eine aufwendigere Sensoreinrichtung erforderlich, wenn nicht Abstriche bei der Fadenerkennung in Kauf genommen werden sollen.The distance between the transmitter and receiver is at least as large as the channel diameter. This makes it more complex Sensor device required if you do not want to compromise on thread detection.
Es ist Aufgabe der Erfindung, die gattungsgemäße Vorrichtung zu verbessern.It is an object of the invention to improve the generic device.
Die Aufgabe wird erfindungsgemäß mit einer Vorrichtung mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst.The object is achieved with a device having the characterizing features of claim 1.
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche .Advantageous embodiments of the invention are the subject of the dependent claims.
Bei der erfindungsgemäßen Vorrichtung wird der Faden so geführt, daß er sich im Meßfeld beabstandet von der Wand des Saugrohres bewegt und gut im Meßfeld positionierbar ist. Durch seine „Flatterbewegung" quer zu seiner Laufrichtung lässt sich der Faden besonders leicht und sicher erkennen. Sender und Empfänger sind so angeordnet, daß die Vertiefung zwischen ihnen verläuft. Dadurch ist ein Abstand zwischen Sender und Empfänger realisierbar, der deutlich geringer ist als der Durchmesser des Saugrohres. Damit können Sender und Empfänger in einfacher, kostengünstiger Ausführung eingesetzt werden, wobei eine sichere Fadenerkennung gewährleistet bleibt.In the device according to the invention, the thread is guided in such a way that it moves at a distance from the wall of the suction tube in the measuring field and can be positioned well in the measuring field. The thread can be recognized particularly easily and reliably due to its "fluttering movement" transverse to its direction of travel. The transmitter and receiver are arranged in such a way that the recess runs between them. This makes it possible to achieve a distance between the transmitter and receiver that is significantly smaller than the diameter This enables the transmitter and receiver to be used in a simple, inexpensive design, with reliable thread detection being ensured.
Liegt das Meßfeld im wesentlichen außerhalb der Krümmung des Saugrohres, ist auf einfache Weise ein Abstand zwischen dem Faden und dem Grund des Saugrohres innerhalb des im Bereich der Vertiefung gelegenen Meßfeldes erzielbar. Auch wenn es im Rahmen der Erfindung möglich ist, daß das Meßfeld zwischen Sender und Empfänger durch zueinander fluchtende Bohrungen verläuft, die die Wand des Saugrohres durchbrechen, ist es von Vorteil, das Saugrohr im Bereich der Sensoreinrichtung so auszubilden, daß keine Störungen durch Durchbrüche in der Wand des Saugrohres erfolgen, an denen sich zudem Ablagerungen bilden können. Das Saugrohr ist dazu transparent. Eine kostengünstige Ausführung eines transparenten Saugrohres wird durch den Einsatz von Polypropylen als transparentes Material ermöglicht.If the measuring field lies essentially outside the curvature of the suction tube, a distance between the thread and the base of the suction tube can be easily achieved within the measuring field located in the region of the depression. Even if it is possible within the scope of the invention that the measuring field between the transmitter and receiver runs through mutually aligned bores which break through the wall of the suction pipe, it is advantageous to so the suction pipe in the area of the sensor device to train that there are no disturbances due to openings in the wall of the suction pipe, on which deposits can also form. The suction pipe is transparent. A cost-effective design of a transparent suction pipe is made possible by the use of polypropylene as a transparent material.
Durch eine Ausbildung des Saugrohres gemäß Anspruch 5 lassen sich zudem Störungen der Luftströmung minimieren oder vermeiden.By designing the suction pipe according to claim 5, disturbances in the air flow can also be minimized or avoided.
Ist die Vertiefung schmal ausgebildet, ist nicht nur ein geringer Abstand zwischen Sender und Empfänger einstellbar, sondern die Wand des Saugrohres wird durch die Bewegung des Fadens gereinigt und so der Ablagerung von Schmutz entgegengewirkt .If the recess is narrow, not only can a small distance be set between the transmitter and receiver, but the wall of the suction pipe is cleaned by the movement of the thread and thus counteracts the deposition of dirt.
Weitere Einzelheiten der Erfindung sind den Figuren entnehmbar.Further details of the invention can be found in the figures.
Es zeigen:Show it:
Fig. 1 eine vereinfachte Darstellung einer Spulstelle mit einer vor der Auflaufspule positionierten Saugdüse,1 is a simplified illustration of a winding unit with a suction nozzle positioned in front of the package,
Fig. 2 einen Schnitt durch ein luftdurchströmtes Saugrohr im Bereich einer Saugrohrkrümmung mit Sensoreinrichtung und Vertiefung,2 shows a section through an intake pipe through which air flows, in the area of an intake pipe bend with sensor device and recess,
Fig. 3 einen Querschnitt A-A durch das Saugrohr der Figur 2. Figur 1 zeigt eine Spulstelle einer Kreuzspulen herstellenden Textilmaschine. Figur 1 stellt eine Situation an der Spulstelle 1 dar, in der der Fadenlauf nach einem Fadenschnitt aufgrund eines Garnfehlers unterbrochen worden ist und Maßnahmen zur Entfernung des Garnfehlers, eine sogenannte Ausreinigung, eingeleitet worden sind. Der Fadenlauf während des Betriebes der Spulstelle 1 ist durch die gestrichelte Linie 2 kenntlich gemacht worden. Im Betrieb der Spulstelle 1 wird der Faden von einer nicht dargestellten Fadenquelle abgezogen. Die Fadenquelle kann eine Ablaufspule oder eine Spinnvorrichtung sein.3 shows a cross section AA through the intake manifold of FIG. 2. FIG. 1 shows a winding station of a textile machine producing cross-wound bobbins. FIG. 1 shows a situation at the winding unit 1 in which the thread run has been interrupted after a thread cut due to a thread defect and measures for removing the thread defect, a so-called cleaning, have been initiated. The thread path during the operation of the winding unit 1 is indicated by the dashed line 2. During operation of the winding unit 1, the thread is drawn off from a thread source, not shown. The thread source can be a pay-off spool or a spinning device.
Der Faden wird auf eine als Auflaufspule dienende Kreuzspule 3 aufgewickelt. Zur Ausreinigung muß das fehlerbehaftete Fadenstück, das auf die Kreuzspule 3 aufgelaufen ist, so vollständig von dieser abgewickelt werden, dass sich bei einem Schnitt des Fadens der Garnfehler im abgeschnittenen Fadenteil befindet. Die Kreuzspule 3 ist in der Darstellung der Figur 1 bereits wieder auf die Wickelwalze 4 abgesenkt worden. Die Kreuzspule 3 wird von einem Spulenhalter 5 gehaltert, der in einem Drehgelenk 6 im hier nur angedeuteten Maschinengestell 7 gelagert ist. Die Betätigung des hier nicht dargestellten Antriebs des Spulenhalters 5 wird von der Steuereinrichtung 8 über die Leitung 9 gesteuert. Die Wickelwalze 4 wird durch einen hier nicht dargestellten Antrieb angetrieben, der über die Leitung 10 ebenfalls mit der Steuereinrichtung 8 verbunden ist. Um das fehlerbehaftete Fadenstück abzuwickeln, wird die Wickelwalze 4 entgegen der Spulrichtung, entsprechend dem Pfeil 11, angetrieben und treibt die mit ihrer Umfangsfläche 12 aufliegende Kreuzspule 3 in Abwickelrichtung 13 an. Vor der Umfangsfläche 12 der Kreuzspule 3 hat sich eine Saugdüse 14 mit ihrer Mündung 15 positioniert. Die Saugdüse 14 ist im Drehgelenk 16 im Maschinengestell 7 gelagert, wobei im Drehgelenk 16 über ein Saugrohr 17 der Anschluß an den zentralen Saugkanal 18 der Unterdruckversorgung der Textilmaschine erfolgt. Die Schwenkbewegung der Saugdüse 14 erfolgt durch einen hier nicht dargestellten Antrieb, der über eine Leitung 19 mit der Steuereinrichtung 8 verbunden ist. Von der Steuereinrichtung 8 wird auch ein hier nicht dargestelltes Ventil angesteuert, wodurch das Saugrohr 17 vom Saugkanal 18 mit Unterdruck beaufschlagt wird. Durch die an der Mündung 15 der in Figur 1 geschnitten dargestellten Saugdüse 14 anliegende Saugströmung, deren Richtung durch den Pfeil 20 angedeutet ist, wird das auf der Umfangsfläche 12 der Kreuzspule 3 liegende Fadenende 21 in die Saugdüse 14 eingesaugt.The thread is wound on a package 3 serving as a package. For cleaning, the defective piece of thread, which has run onto the cheese 3, must be completely unwound from it so that when the thread is cut, the thread defect is in the cut thread part. The cheese 3 has already been lowered back onto the winding roller 4 in the illustration in FIG. 1. The cross-wound bobbin 3 is held by a bobbin holder 5 which is mounted in a rotary joint 6 in the machine frame 7, which is only indicated here. The actuation of the drive of the coil holder 5, not shown here, is controlled by the control device 8 via the line 9. The winding roller 4 is driven by a drive, not shown here, which is also connected to the control device 8 via the line 10. In order to unwind the defective thread piece, the winding roller 4 is driven counter to the winding direction, corresponding to the arrow 11, and drives the cross-wound bobbin 3 with its peripheral surface 12 in the unwinding direction 13. A suction nozzle 14 with its mouth 15 has been positioned in front of the peripheral surface 12 of the cheese 3. The suction nozzle 14 is mounted in the swivel joint 16 in the machine frame 7, the connection to the central suction duct 18 of the vacuum supply of the textile machine being made in the swivel joint 16 via a suction pipe 17. The swiveling movement of the suction nozzle 14 is carried out by a drive, not shown here, which is connected to the control device 8 via a line 19. The control device 8 also controls a valve (not shown here), as a result of which the suction pipe 17 is subjected to a vacuum from the suction channel 18. Through the suction flow at the mouth 15 of the suction nozzle 14 shown in FIG. 1, the direction of which is indicated by the arrow 20, the thread end 21 lying on the peripheral surface 12 of the cheese 3 is sucked into the suction nozzle 14.
In der Darstellung der Figur 1 hat das Fadenende 21 eine im Saugrohr 17 angeordnete Sensoreinrichtung 22 erreicht. Die Anwesenheit des Fadenendes 21 im Saugrohr 17 wird von der Sensoreinrichtung 22 detektiert und über die Leitung 23 an die Steuereinrichtung 8 gemeldet. Wenn das Fadenende 21 die Sensoreinrichtung 22 erreicht hat, wird überprüft, ob zu diesem Zeitpunkt das Fadenende 21 bereits so weit von der Auflaufspule abgewickelt worden ist, daß der vom Reiniger 24 festgestellte Fehler bereits von der Kreuzspule 3 wieder abgewickelt worden ist. Ist dies der Fall, wird das Abwickeln und Absaugen des Fadenendes 21 gestoppt. Das Fadenende 21 wird durch den Unterdruck in der Saugdüse 14 gehalten. Beim Herunterschwenken der Saugdüse 14 vollführt die Kreuzspule 3 eine bestimmte Drehung in Richtung des Pfeils 13, mittels der eine solche Länge des aufgewickelten Fadens wieder von der Kreuzspule 3 abgewickelt wird, daß das Fadenende 21 seine Position in der Saugdüse 14 beibehalten kann. Weitere Erläuterungen zu derartigen Spulstellen sind zum Beispiel der DE 196 40 184 AI oder deren paralleler Anmeldung US 5,862,660 zu entnehmen.In the illustration in FIG. 1, the thread end 21 has reached a sensor device 22 arranged in the suction pipe 17. The presence of the thread end 21 in the suction pipe 17 is detected by the sensor device 22 and reported to the control device 8 via the line 23. When the thread end 21 has reached the sensor device 22, it is checked whether the thread end 21 has already been unwound from the package so far at this point in time that the error detected by the cleaner 24 has already been unwound by the cheese 3. If this is the case, the unwinding and suctioning of the thread end 21 is stopped. The thread end 21 is held in the suction nozzle 14 by the negative pressure. When the suction nozzle 14 is swiveled down, the cheese 3 performs a certain rotation in the direction of the arrow 13, by means of which such a length of the wound thread again from the Cross-wound bobbin 3 is wound that the thread end 21 can maintain its position in the suction nozzle 14. Further explanations of such winding units can be found, for example, in DE 196 40 184 AI or their parallel application US 5,862,660.
Figur 2 zeigt eine Krümmung 25 des Saugrohres 17 mit der Sensoreinrichtung 22. Das Meßfeld 26 der Sensoreinrichtung 22 ist in der Nähe des kleineren Radius der Krümmung 25 des Saugrohres 17 angeordnet. Das Saugrohr 17 weist eine in Laufrichtung ausgerichtete Vertiefung 27 auf. Das Fadenende 21 wird durch die in Richtung des Pfeils 28 fließende Luftströmung erfaßt und im Bereich der Vertiefung 27 gestrafft.FIG. 2 shows a curvature 25 of the suction pipe 17 with the sensor device 22. The measuring field 26 of the sensor device 22 is arranged in the vicinity of the smaller radius of the curvature 25 of the suction pipe 17. The suction pipe 17 has a recess 27 oriented in the running direction. The thread end 21 is detected by the air flow flowing in the direction of arrow 28 and tightened in the region of the recess 27.
Das Fadenende 21 liegt dabei an dem zum kleineren Radius gelegenen Teil der Wand 29 des Saugrohres 17 an, während es in dem gestrafften Zustand vom Grund 30 der Vertiefung 27 beabstandet ist. Die Vertiefung 27 beginnt inThe thread end 21 lies against the part of the wall 29 of the suction pipe 17 which is located at the smaller radius, while in the tightened state it is spaced from the base 30 of the depression 27. The recess 27 begins in
Strömungsrichtung ganz allmählich im Verlauf der Krümmung 25, wodurch die Luftströmung nicht oder nur unwesentlich gestört ist. Im Bereich der Vertiefung 27 kann das Fadenende 21 durch die Luftströmung in Schwingungen versetzt werden. Durch eine solche „Flatterbewegung" läßt sich das Fadenende sicher und auf einfache Weise erkennen, wobei die Sensoreinrichtung als Bewegungsmelder ausgebildet ist.Flow direction very gradually in the course of the curvature 25, whereby the air flow is not or only slightly disturbed. In the area of the depression 27, the thread end 21 can be set in vibration by the air flow. Such a "fluttering movement" enables the thread end to be recognized safely and easily, the sensor device being designed as a motion detector.
Figur 3 zeigt das Saugrohr 17 und die Sensoreinrichtung 22 in der Ansicht A-A der Figur 2. Im Saugrohr 17 ist die Vertiefung 27 schmal ausgebildet. Die Sensoreinrichtung 22 weist einen Sender 31 und einen Empfänger 32 sowie zwei Haltearme 33 auf. Der Sender 31 ist als Lichtquelle und der Empfänger 32 als Fotosensor ausgebildet. Die Haltearme 33 sind mindestens teilweise elastisch ausgebildet. Eine derartige Ausführung der Sensoreinrichtung 22 läßt sich durch einfaches Aufstecken auf das Saugrohr 17 schnell positionieren.Figure 3 shows the suction pipe 17 and the sensor device 22 in the view AA of Figure 2. In the suction pipe 17, the recess 27 is narrow. The sensor device 22 has a transmitter 31 and a receiver 32 and two holding arms 33. The transmitter 31 is the light source and the Receiver 32 designed as a photo sensor. The holding arms 33 are at least partially elastic. Such an embodiment of the sensor device 22 can be quickly positioned by simply plugging it onto the suction pipe 17.
Die Sensoreinrichtung 22 ist in der Darstellung der Figur 3 so positioniert, daß sich die Vertiefung 27 im Meßfeld 26 zwischen Sender 31 und Empfänger 32 befindet. In der Vertiefung 27 verläuft das Fadenende 21. Der Abstand zwischen Sender 31 und Empfänger 32 ist wesentlich kleiner als der Durchmesser des Saugrohres 17. Durch die Nähe von Sender 31 und Empfänger 32 ist stets eine sichere Erkennung des Fadenendes gewährleistet. In der Vertiefung 27 kann die Luftströmung das Fadenende 21 quer zur Laufrichtung bewegen. Diese Bewegung macht sich eine alternative Ausführung der Sensoreinrichtung 22 zunutze, bei der die Sensoreinrichtung 22 als Bewegungsmelder ausgebildet ist.In the illustration in FIG. 3, the sensor device 22 is positioned such that the depression 27 is located in the measuring field 26 between the transmitter 31 and the receiver 32. The thread end 21 runs in the recess 27. The distance between the transmitter 31 and the receiver 32 is substantially smaller than the diameter of the suction tube 17. The proximity of the transmitter 31 and receiver 32 always ensures reliable detection of the thread end. In the depression 27, the air flow can move the thread end 21 transversely to the running direction. This movement makes use of an alternative embodiment of the sensor device 22, in which the sensor device 22 is designed as a motion detector.
Da die Vertiefung 27 schmal ausgebildet ist, kann das Fadenende 21 durch seine Bewegungen quer zur Laufrichtung die Seitenwände der Vertiefung 27 streifen oder ihnen so nahe kommen, daß eine Reinigung der Oberfläche des Saugrohres 17 in diesem Bereich erfolgt. Dadurch wird einer Verschmutzung der Oberfläche im Meßfeld 26 entgegengewirkt.Since the recess 27 is narrow, the thread end 21 can graze the side walls of the recess 27 by its movements transversely to the running direction or come so close to them that the surface of the suction pipe 17 is cleaned in this area. This counteracts soiling of the surface in the measuring field 26.
Das Saugrohr 17 kann beispielsweise so ausgebildet sein, daß es einen Außendurchmesser von 50 mm sowie eine Wandstärke von 2 mm aufweist, wobei der Abstand zwischen den Seitenwänden der Vertiefung 27 mit 6 mm ausgeführt sein kann. Besonders kostengünstig läßt sich das erfindungsgemäße Saugrohr 17 aus durchsichtigem Polypropylen herstellen. Das Saugrohr 17 kann weiterhin so ausgebildet sein, daß der Querschnitt des Saugrohres 17 im Rohrabschnitt, der die Vertiefung 27 aufweist, gegenüber den Rohrabschnitten mit kreisförmigem Querschnitt weitgehend gleich gehalten wird. Liegt im Verlauf der Luftströmung im Saugrohr 17 eine Stelle mit kleinerem beziehungsweise dem engsten Querschnitt stromab vom Meßfeld 26, wird das Fadenende 21 im Meßfeld 26 besonders gut mit Fadenspannung beaufschlagt.The suction pipe 17 can, for example, be designed such that it has an outer diameter of 50 mm and a wall thickness of 2 mm, the distance between the side walls of the depression 27 being 6 mm. The suction pipe 17 according to the invention can be produced from transparent polypropylene in a particularly cost-effective manner. The suction pipe 17 can also be designed such that the cross section of the suction pipe 17 in the pipe section which has the depression 27 is kept largely the same as that of the pipe sections with a circular cross section. If, in the course of the air flow in the intake manifold 17, there is a point with a smaller or the narrowest cross section downstream of the measuring field 26, the thread end 21 in the measuring field 26 is subjected to thread tension particularly well.
Die Vertiefung 27 kann bereits weit vor dem Meßfeld 26 im Saugrohr 17 beginnen und weit nach dem Meßfeld 26 enden, um eine ganz allmähliche Veränderung der Querschnittsform des Saugrohres 17 zu erleichtern. Bei einer allmählichen Veränderung der Querschnittsform wird die Luftströmung nicht oder kaum noch gestört.The recess 27 can begin well before the measuring field 26 in the suction pipe 17 and end far after the measuring field 26 in order to facilitate a very gradual change in the cross-sectional shape of the suction pipe 17. With a gradual change in the cross-sectional shape, the air flow is not or hardly disturbed.
Die Erkennung des Fadenendes 21 wird mittels der erfindungsgemäßen Vorrichtung verbessert. Dies trägt zu einer höheren Produktivität der Textilmaschine bei, denn je schneller und sicherer die Erkennung des Fadenendes 21 erfolgen kann, desto eher können die beispielsweise für einen Anspinnvorgang folgenden Phasen des Vorgangs gestartet werden und desto geringer ist die Gefahr, den gesamten Anspinnvorgang wiederholen zu müssen, weil das Fadenende 21 nicht oder nur unzureichend von der Saugdüse 14 erfaßt wurde.The detection of the thread end 21 is improved by means of the device according to the invention. This contributes to a higher productivity of the textile machine, because the faster and more reliably the detection of the thread end 21 can take place, the sooner the phases of the process following, for example, a piecing process can be started and the less the risk of having to repeat the entire piecing process , because the thread end 21 was not or only insufficiently detected by the suction nozzle 14.
Der Begriff "Fadenende" umfaßt den von der Kreuzspule 3 wieder abgezogenen Abschnitt des Fadens. The term “thread end” encompasses the section of the thread which has been pulled off the cheese 3.

Claims

Patentansprüche : Claims:
1. Vorrichtung zum Erkennen eines Fadens bei der Erfassung von Fadenenden in einem luftdurchströmten Saugrohr mit einer einen Sender und einen Empfänger umfassenden Sensoreinrichtung, wobei zwischen Sender und Empfänger ein Meßfeld gebildet ist und das Saugrohr im Bereich des Meßfeldes eine Krümmung aufweist, dadurch gekennzeichnet, daß das Meßfeld (26) zumindest in der Nähe des kleineren Radius' des Saugrohres (17) angeordnet ist, daß zur Ausbildung des Meßfeldes (26) eine in Laufrichtung des Saugrohres (17) ausgerichtete Vertiefung (27) vorhanden ist, daß stromauf und stromab zum Meßfeld (26) das Saugrohr (17) so gekrümmt ist, daß der erfaßte Faden innerhalb der Vertiefung (27) so gespannt ist, daß er im Meßfeld (26) zumindest partiell vom Grund (30) der Vertiefung (27) beabstandet ist.1. Apparatus for recognizing a thread in the detection of thread ends in an air-flowed intake manifold with a sensor device comprising a transmitter and a receiver, a measuring field being formed between the transmitter and receiver and the suction tube having a curvature in the region of the measuring field, characterized in that the measuring field (26) is arranged at least in the vicinity of the smaller radius of the suction pipe (17), that for the formation of the measuring field (26) there is a recess (27) oriented in the running direction of the suction pipe (17) that upstream and downstream of the Measuring field (26), the suction pipe (17) is curved so that the detected thread within the recess (27) is so tensioned that it is at least partially spaced from the base (30) of the recess (27) in the measuring field (26).
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Meßfeld (26) im wesentlichen außerhalb der Krümmung liegt.2. Device according to claim 1, characterized in that the measuring field (26) lies substantially outside the curvature.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Saugrohr (17) transparent ist.3. Apparatus according to claim 1 or 2, characterized in that the suction pipe (17) is transparent.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß als transparentes Material Polypropylen eingesetzt ist. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Vertiefung (27) in Strömungsrichtung so allmählich beginnt, daß die Luftströmung nicht oder nur unwesentlich gestört ist.4. The device according to claim 3, characterized in that polypropylene is used as the transparent material. Device according to one of claims 1 to 4, characterized in that the recess (27) begins so gradually in the direction of flow that the air flow is not or only slightly disturbed.
Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Vertiefung (27) so schmal ausgebildet ist, daß die Bewegung des Fadens eine Reinigung der Wand des Saugrohres (17) im Meßfeld (26) bewirkt. Device according to one of claims 1 to 5, characterized in that the recess (27) is so narrow that the movement of the thread causes cleaning of the wall of the suction tube (17) in the measuring field (26).
EP04804371A 2004-01-22 2004-12-29 Device for detecting a thread Active EP1708947B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004003174A DE102004003174A1 (en) 2004-01-22 2004-01-22 Device for detecting a thread
PCT/EP2004/014785 WO2005070800A1 (en) 2004-01-22 2004-12-29 Device for detecting a thread

Publications (2)

Publication Number Publication Date
EP1708947A1 true EP1708947A1 (en) 2006-10-11
EP1708947B1 EP1708947B1 (en) 2007-11-14

Family

ID=34744976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04804371A Active EP1708947B1 (en) 2004-01-22 2004-12-29 Device for detecting a thread

Country Status (5)

Country Link
US (1) US7504617B2 (en)
EP (1) EP1708947B1 (en)
CN (1) CN100542924C (en)
DE (2) DE102004003174A1 (en)
WO (1) WO2005070800A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012005988A1 (en) 2012-03-23 2013-09-26 Oerlikon Textile Gmbh & Co. Kg Method for operating workstation of textile machine, for producing cross-wound bobbins, involves deciding the change of setting parameters, for optimizing the following thread take-and-overpass operations, based on a comparison result
WO2015029275A1 (en) * 2013-08-29 2015-03-05 村田機械株式会社 Thread pickup device, thread takeup device, and thread splicing method
JP2015148035A (en) * 2014-02-10 2015-08-20 村田機械株式会社 Yarn capture device and yarn winder
DE102014009203A1 (en) * 2014-06-20 2015-12-24 Saurer Germany Gmbh & Co. Kg Workplace of a cheese-producing textile machine
DE102014012419A1 (en) * 2014-08-21 2016-02-25 Saurer Germany Gmbh & Co. Kg Workplace of a cheese-producing textile machine
JP2017141107A (en) * 2016-02-12 2017-08-17 村田機械株式会社 Yarn monitoring device
JP2017141106A (en) * 2016-02-12 2017-08-17 村田機械株式会社 Yarn monitoring device
DE102016112641A1 (en) * 2016-07-11 2018-01-11 Rieter Ingolstadt Gmbh Winding unit with a movable cover unit
DE102016115731A1 (en) * 2016-08-24 2018-03-01 Saurer Germany Gmbh & Co. Kg Suction device for sucking a thread end of a wound up on a package spool thread and method for sensory monitoring a Saugkanalabschnitts the suction device
DE102017122851A1 (en) * 2017-10-02 2019-04-04 Maschinenfabrik Rieter Ag Device for applying a thread to a workstation of a textile machine with a suction nozzle and with a feeder element
DE102018125327A1 (en) * 2018-10-12 2020-04-16 Saurer Spinning Solutions Gmbh & Co. Kg Thread tube for a textile machine producing winding packages

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147156B (en) * 1959-05-15 1963-04-11 Schweiter Ag Maschf Suction nozzle for locating and capturing thread ends on a winding machine
DE1276523B (en) * 1961-12-11 1968-08-29 Reiners Walter Dr Ing Pneumatic device for finding and pulling off the beginning of the thread of a textile bobbin
US3728550A (en) * 1971-10-20 1973-04-17 Maremont Corp Device and method for detecting and withdrawing a predetermined length of yarn
DE2531044C2 (en) * 1975-07-11 1986-04-30 W. Schlafhorst & Co, 4050 Mönchengladbach Device for searching for a thread end on a bobbin
DE3833258A1 (en) * 1988-09-30 1990-04-05 Schlafhorst & Co W METHOD AND DEVICE FOR PREPARING COPS FOR A DISHWASHER
DE4308058A1 (en) * 1993-03-13 1994-09-15 Schlafhorst & Co W Device for recognising a thread in a channel through which air flows
DE4424462A1 (en) * 1994-07-12 1996-01-18 Schlafhorst & Co W Prepn. of yarn end at a wound cops
DE19640184B4 (en) * 1996-09-30 2005-10-13 Saurer Gmbh & Co. Kg Method for cleaning out yarn defects at a winding station of a winding machine
JP4756411B2 (en) * 1998-03-25 2011-08-24 ウステル・テヒノロジーズ・アクチエンゲゼルシヤフト A device for measuring the characteristics of a test product moving in the longitudinal direction
DE10123834A1 (en) * 2001-05-16 2002-11-21 Schlafhorst & Co W Thread winder with break recovery mechanism, includes device momentarily treating thread end to reduce adherence to spool surface

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005070800A1 *

Also Published As

Publication number Publication date
US7504617B2 (en) 2009-03-17
WO2005070800A1 (en) 2005-08-04
DE102004003174A1 (en) 2005-08-11
US20080217462A1 (en) 2008-09-11
CN100542924C (en) 2009-09-23
EP1708947B1 (en) 2007-11-14
CN1902115A (en) 2007-01-24
DE502004005542D1 (en) 2007-12-27

Similar Documents

Publication Publication Date Title
EP2444347B1 (en) Workstation of a textile machine for creating cross-wound spools
EP2957532B1 (en) Workstation of a textile machine for creating cross-wound spools
EP1708947A1 (en) Device for detecting a thread
EP2338818B1 (en) Procedure for operating a workstation of a winding machine and workstation of a winding machine
EP2831319A1 (en) Slubbing machine with an arrangement for detecting and removing yarn flaws
DE4434610B4 (en) Method and device for winding a thread
DE2242151A1 (en) METHOD AND DEVICE FOR CONTINUOUS SPINNING AND REELING OF YARN, IN PARTICULAR OF STAPLE FIBER YARN, ON SPINNING MACHINES
EP1995200B2 (en) Method and device for operating a winding device of a textile machine which produces crosswound bobbins
DE3918788C2 (en)
DE4004028A1 (en) Bobbin yarn reserve - uses unwound preset length drawn into a store by the doffer and then rewound at the head end of the bobbin
DE102017116893A1 (en) Yarn guiding unit, open-end spinning machine and method for operating a spinning station
DE10201533B4 (en) Open-end rotor spinning machine
DE4241992A1 (en) Method and device for sucking a thread start of a payout spool
CH671242A5 (en)
EP2311765B1 (en) Winding device
DE102008003711A1 (en) Method for operating a workstation of a semi-automatic open-end spinning machine or workstation for carrying out the method
DE102008013108A1 (en) Workplace for cross coil automats for cross coil manufacturing textile machine, has coiling device for producing cross-coil, and suction nozzle for adjusting upper thread accumulating at surface of cross-coil
DE2705660B2 (en) Open-end spinning machine with a device for winding cheeses
EP3241794B1 (en) Method for handling a yarn end and winding station
CH706573A2 (en) Spinning machine.
DE102018125327A1 (en) Thread tube for a textile machine producing winding packages
EP0352539B1 (en) Device and method for storing a yarn
DE102016122490A1 (en) Workplace of a cheese-producing textile machine
EP0170972A2 (en) Piecing method and device for a friction open-end spinning machine
DE2265481C3 (en) Device for open-end spinning

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060822

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CZ DE IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RBV Designated contracting states (corrected)

Designated state(s): CZ DE IT

DAX Request for extension of the european patent (deleted)
GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OERLIKON TEXTILE GMBH & CO. KG

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CZ DE IT

REF Corresponds to:

Ref document number: 502004005542

Country of ref document: DE

Date of ref document: 20071227

Kind code of ref document: P

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: OERLIKON TEXTILE GMBH & CO. KG

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20080815

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502004005542

Country of ref document: DE

Owner name: SAURER GERMANY GMBH & CO. KG, DE

Free format text: FORMER OWNER: OERLIKON TEXTILE GMBH & CO. KG, 42897 REMSCHEID, DE

Effective date: 20130918

Ref country code: DE

Ref legal event code: R081

Ref document number: 502004005542

Country of ref document: DE

Owner name: SAURER SPINNING SOLUTIONS GMBH & CO. KG, DE

Free format text: FORMER OWNER: OERLIKON TEXTILE GMBH & CO. KG, 42897 REMSCHEID, DE

Effective date: 20130918

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502004005542

Country of ref document: DE

Owner name: SAURER SPINNING SOLUTIONS GMBH & CO. KG, DE

Free format text: FORMER OWNER: SAURER GERMANY GMBH & CO. KG, 42897 REMSCHEID, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20221129

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20221230

Year of fee payment: 19

Ref country code: DE

Payment date: 20221229

Year of fee payment: 19