EP2186766A2 - Workplace of a spooling machine with a gripper tube loaded with suction air - Google Patents

Workplace of a spooling machine with a gripper tube loaded with suction air Download PDF

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Publication number
EP2186766A2
EP2186766A2 EP09012492A EP09012492A EP2186766A2 EP 2186766 A2 EP2186766 A2 EP 2186766A2 EP 09012492 A EP09012492 A EP 09012492A EP 09012492 A EP09012492 A EP 09012492A EP 2186766 A2 EP2186766 A2 EP 2186766A2
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EP
European Patent Office
Prior art keywords
thread
gripper tube
gripper
flap
tube
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
EP09012492A
Other languages
German (de)
French (fr)
Other versions
EP2186766B1 (en
EP2186766A3 (en
Inventor
Manfred Mund
Michael Reimann
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP2186766A2 publication Critical patent/EP2186766A2/en
Publication of EP2186766A3 publication Critical patent/EP2186766A3/en
Application granted granted Critical
Publication of EP2186766B1 publication Critical patent/EP2186766B1/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
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/702—Arrangements for confining or removing dust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/003—Arrangements for threading or unthreading the guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/02—Stationary rods or plates
    • 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
    • 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
    • B65H67/083—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement handling the yarn-end of the new supply 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
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • B65H69/06—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing
    • B65H69/061—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing using pneumatic means
    • 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 connecting device, in particular a splicing device for pneumatically connecting thread ends, and an intake air-loaded gripper tube which is pivotally mounted and formed for functionally correct positioning of its associated thread in the thread connecting device, said end a gripper tube flap is arranged for closing the thread-side opening of the gripper tube, and wherein the gripper tube flap has a control cam, via its engagement in a stationary shift gate, the open position of the gripper tube flap is controllable.
  • Such winder transfer a thread from a delivery reel on a package.
  • spin creels produced on a ring spinning machine come into question as a delivery reel.
  • the winder makes it cross-cheeks ago, which are better suited for further processing of the wound thread.
  • Such fully automatic, cross-wound producing spooling machines are also referred to as cross-spooling machines.
  • a thread automatic connection and, if necessary, a cop change mechanism are activated. That is, first, a suction nozzle is placed on the surface of the slowly rotating bobbin against the winding direction. After detecting the upper thread end, the suction nozzle pivots to its original position, in the suction nozzle opening is positioned below the splicer back, thereby inserting the upper thread in the splicer.
  • a gripper tube Almost simultaneously with the suction nozzle pivots a gripper tube from its zero position, which it occupies during normal winding operation, first in a lower position, then pivots in an upper working position and brings a hitherto held in a thread tensioner or in a clamping device, from the drain spool withdrawn bobbin thread with.
  • the gripper tube has at its end a gripper tube flap, which is opened when pivoting in the lower position by means of a shift gate. The negative pressure sucks the thread into the gripper tube.
  • the gripper tube flap is closed again and clamps the thread, so that it can be safely transferred to the splicer.
  • the DE 195 10 171 A1 discloses a generic winding machine.
  • the gripper tube is parked in a zero position in front of the normal threadline. In this position, the gripper tube has such a large distance from the running thread, that after a cleaner cut or a thread break the falling thread should not wrap around the gripper tube or the gripper tube flap, but falls past the gripper tube.
  • the thread after a break or cut often does not remain in its regular course, but can move uncontrollably due to the thread tension, which is suddenly relieved. The distance from the regular yarn path therefore does not provide sufficient protection against wraps of the gripper tube or the gripper tube flap.
  • the subsequent processes are adversely affected by these wraps. It can then no secure detection of the lower thread and thus no secure splice connection are guaranteed. In extreme cases, the wrap leads to a shutdown of the winding unit. Then an operator intervention is required and the thread must be removed manually.
  • the invention is therefore based on the object to remedy the aforementioned disadvantages or at least significantly reduce the likelihood of Fadenumschlingung the gripper tube or the hook tube flap.
  • the gripper tube is positioned during normal winding operation below a Fadenleitbleches arranged in the yarn path that the thread-side end of the gripper tube is completely covered by the gripper tube flap of the Fadenleitblech. In this way, the gripper tube is shielded by the yarn guide. A falling thread remains more likely to lie on the baffle than to wrap around the hook tube and the hook tube flap.
  • Fadenleitbleche are already available for threading and holding the thread in a given yarn path on winding machines.
  • the Fadenleitbleche are positioned above a clamping device. For the implementation of the method according to the invention therefore usually no mechanical changes are required.
  • the gripper tube is positioned during the normal winding operation so that the control cam touches the shift gate. In this way, a position of the gripper tube is realized close to the thread and thus positioned the opening of the gripper tube below the Fadenleitbleches.
  • the gripper tube flap can be opened very quickly.
  • the gripper tube during normal winding operation is positioned with respect to the shift gate, that the gripper tube flap is at least partially open. This positioning brings despite the compressed air loss described above, considerable advantages. Due to the continuous suction air, a falling thread can be caught directly. Furthermore, the gripper tube thus exerts a de-dusting function, so that in wind-up machines customary separate dedusting devices can optionally be omitted.
  • the gripper tube during normal winding operation is positioned so that the distance between the center of the thread-side opening cross section of the gripper tube and the yarn path is less than 40 mm.
  • this distance can be achieved on the one hand, that in many common winding machines, the thread-side end of the gripper tube is arranged under an already existing thread guide plate.
  • On the other hand is achieved by positioning with a distance of less than 40mm between the yarn path and the center of the opening cross section that the suction port of the gripper tube already arranged before the occurrence of a thread break or cleaner cut close to the thread and not only have to perform a long pivoting when the Threadline is interrupted. This shortens the time for the pivoting down of the gripper tube and the opening of the gripper tube flap in a thread break or cleaner cut.
  • a quick suction of the thread through the gripper tube also reduces the likelihood of looping.
  • the inventive position of the gripper tube during the normal winding process can also serve as a zero position and are always taken when the gripper tube receives no thread or transferred to the splicer. But it is also possible that the gripper tube a zero position in a larger Distance from the regular thread run can take and is pivoted closer to the thread only at the beginning of the winding operation.
  • a workstation of a winder with a thread connecting device and a suction gripper tube which is pivotally mounted and formed for functionally correct positioning of its associated thread in the thread connecting device, and end has a gripper tube flap for closing the thread-side opening of the gripper tube, the gripper tube flap a control cam, by the engagement in a stationary shift gate, the open position of the hook tube flap is controllable.
  • the gripper tube is automatically positioned by means of a control device.
  • a yarn guide is arranged in the yarn path.
  • the control device is adapted to automatically position the gripper tube during the normal winding operation such that the thread-side end of the gripper tube with the gripper tube flap is completely covered by the thread guide plate.
  • Fig. 1 shows in side view a job 10 of a cheese winder 1.
  • Such cheese machines have a variety of such juxtaposed jobs 10 on which feed bobbins 12, preferably spinning cops, are rewound to large-volume cheeses 14.
  • the spinning cops 12 arrive via a transport device 16 to the individual workstations 10, which, as known per se, includes a plurality of unspecified transport routes on which, plugged on transport plates 20, spin cops 12 and empty tubes 18 are conveyed.
  • a thread 22 is withdrawn from a spinning cop 12 arranged in a winding position 61, which initially passes on its way to the cheese 14 a lower thread sensor 28, which is connected via a signal line 30 to a workstation computer 32.
  • this lower thread sensor 28 for example, after a yarn break or a controlled thread cut, before initiating the Oberfadensuche determined whether at all a bobbin thread is present.
  • a device 36 which allows the clamping and clamping of the thread 22, is arranged above the lower thread sensor 28, a device 36, which allows the clamping and clamping of the thread 22, is arranged above the lower thread sensor 28, a device 36, which allows the clamping and clamping of the thread 22, is arranged.
  • the tensioning / clamping device 36 is also connected via a control line 38 to the workstation computer 32.
  • a yarn guide plate 63 is arranged above the tensioning / clamping device 36.
  • a thread cleaner 44 is arranged to detect yarn defects.
  • the quality of the running thread is constantly monitored, wherein the signals of the thread cleaner 44 are supplied to the Hästellenrechner32 for evaluation via a signal line 48.
  • the thread cleaner 44 may also have its own evaluation unit for quality control.
  • a yarn tension sensor 54 and a paraffining device 46 are still arranged.
  • the yarn tensile force sensor 54 is also connected via a signal line 56 to the workstation computer 32.
  • On the waxing device 46 follows in the direction of yarn finally a yarn guide 58, through which the thread 22 runs, for example, on a so-called yarn guide drum 60, which ensures a crosswise laying of the thread 22 according to the winding type "wild winding".
  • the cross-wound bobbin 14 is rotatably supported by a sleeve, not shown in a pivotally mounted creel 6 and lies with its outer periphery on the motor driven individually driven yarn guide drum 60, which carries the cross-wound bobbin 14 via frictional engagement.
  • a yarn splicing device 40 is also arranged, which is also connected via a signal line 42 to the workstation computer 32.
  • the suction nozzle 7 serves to receive an accumulated on the cheese 14 upper thread.
  • the gripper tube 8 serves to grasp the lower thread originating from the spinning cop 12 which is clamped in the tensioning / clamping device 36 in the case of a controlled thread cleaner cut or in the event of a yarn break above the tensioning / clamping device 36.
  • the gripper tube is pivotally mounted and has a motor drive, which is controlled by the workstation computer 32 via the control line 62.
  • FIG. 2 shows a section of the side view of the job.
  • the FIGS. 3 and 4 show for the same arrangement respectively a front view and a top view.
  • the gripper tube 8 has at its end a gripper tube flap 64 with a control cam 66.
  • Fig. 2 is the hidden by the hook tube flap 64 thread-side opening 67 indicated by a dashed line.
  • the yarn path shown in the figures corresponds to the yarn path during normal winding operation.
  • a shift gate 65 is arranged, the control tube 66 aufêtt the hook tube flap 64 in a downward pivoting of the gripper tube 8 in the direction of the thread 22.
  • the clamping / clamping device 36 and arranged above this device yarn guide plate 63 is shown.
  • the yarn guide plate 63 holds the thread 22 in the threadline provided, in particular, the thread 22 is guided through the thread guide plate 63 along the tensioning / clamping device 36, so that at a cleaner cut or a thread break above the tensioning / clamping device 36 of the thread 22 also clamped securely becomes.
  • the yarn guide plate 63 is formed for threading the thread 22 in the yarn path, in particular when the gripper tube 8 inserts the lower thread in the Fadensl alonevorraum 40.
  • the center 68 of the cross section of the thread-side opening 67 of the gripper tube 8 has a distance d from the regular yarn path. According to the invention, this distance d is less than 40 mm in the normal winding operation.
  • the control cam 66 of the hook tube flap 64 touches the control link 65 or in other words the control link 65 forms a tangent to the circular control cam 66. Due to this arrangement, further pivoting of the hook tube 8 in the direction of the thread 22 immediately leads to opening of the Gripper tube flap 64.
  • the gripper tube 8 may also be positioned further in the direction of the thread 22 during the normal winding operation.
  • the hook tube flap 64 is partially opened during the winding operation, so that the hook tube 8 operates as a catching nozzle and at the same time serves for dedusting.
  • the respective position is automatically taken by the gripper tube 8 by driving the workstation 32, as soon as the winding unit is in winding operation.
  • the hook tube 8 is positioned in front of the thread during winding so that the yarn guide plate 63 completely covers the thread-side end of the hook tube 8 with the hook tube flap 64.

Abstract

The method involves positioning of a gripping pipe (8) below a thread guiding plate (63) during the spooling operation. The thread guiding device is arranged in a grain. The thread side end of the gripping pipe with a gripping tube flap (64) is covered completely by the thread guiding plate. An independent claim is included for a working position of a spooling machine with a thread connecting unit and a controlling device.

Description

Die Erfindung betrifft ein Verfahren zum Betreiben einer Arbeitsstelle einer Spulmaschine mit einer Fadenverbindungseinrichtung, insbesondere einer Spleißeinrichtung zum pneumatischen Verbinden von Fadenenden, und einem saugluftbeaufschlagten Greiferrohr, das schwenkbar gelagert und zum funktionsgerechten Positionieren des ihm zugeordneten Fadens in die Fadenverbindungseinrichtung ausgebildet ist, wobei endseitig eine Greiferrohrklappe zum Verschließen der fadenseitigen Öffnung des Greiferrohres angeordnet ist, und wobei die Greiferrohrklappe einen Steuernocken aufweist, über dessen Eingriff in eine stationäre Schaltkulisse die Öffnungsstellung der Greiferrohrklappe steuerbar ist.The invention relates to a method for operating a workstation of a winding machine with a thread connecting device, in particular a splicing device for pneumatically connecting thread ends, and an intake air-loaded gripper tube which is pivotally mounted and formed for functionally correct positioning of its associated thread in the thread connecting device, said end a gripper tube flap is arranged for closing the thread-side opening of the gripper tube, and wherein the gripper tube flap has a control cam, via its engagement in a stationary shift gate, the open position of the gripper tube flap is controllable.

Derartige Spulmaschinen überführen einen Faden von einer Ablaufspule auf eine Auflaufspule. Als Ablaufspule kommen zum Beispiel auf einer Ringspinnmaschine hergestellte Spinnkopse in Frage. Die Spulmaschine stellt daraus Kreuzspulen her, die zur Weiterverarbeitung des aufgespulten Fadens besser geeignet sind. Solche vollautomatisch arbeitenden, Kreuzspulen herstellenden Spulmaschinen werden auch als Kreuzspulautomaten bezeichnet.Such winder transfer a thread from a delivery reel on a package. For example, spin creels produced on a ring spinning machine come into question as a delivery reel. The winder makes it cross-cheeks ago, which are better suited for further processing of the wound thread. Such fully automatic, cross-wound producing spooling machines are also referred to as cross-spooling machines.

Bei Spulmaschinen werden im Falle eines Fadenbruchs, nach Ausreinigung eines Fehlers oder bei einem Ablaufspulenwechsel eine Fadenverbindungsautomatik und gegebenenfalls eine Kopswechselautomatik aktiviert. Das heißt, zunächst wird eine Saugdüse an die Oberfläche der langsam gegen die Wickelrichtung drehenden Auflaufspule gelegt. Nach dem Erfassen des Oberfadenendes schwenkt die Saugdüse in ihre Ausgangslage, in der die Saugdüsenöffnung unterhalb der Spleißvorrichtung positioniert ist, zurück und legt dabei den Oberfaden in die Spleißvorrichtung ein. Nahezu gleichzeitig mit der Saugdüse schwenkt ein Greiferrohr aus seiner Nullposition, die es während des normalen Spulbetriebes einnimmt, zunächst in eine untere Position, schwenkt dann in eine obere Arbeitsposition und bringt dabei einen bis dahin in einem Fadenspanner oder in einer Klemmvorrichtung gehaltenen, von der Ablaufspule abgezogenen Unterfaden mit. Beim Einschwenken des Greiferrohres in seine obere Arbeitsstellung wird auch der Unterfaden in der Spleißvorrichtung positioniert. Das Greiferrohr weist endseitig eine Greiferrohrklappe auf, die beim Schwenken in die untere Position mittels einer Schaltkulisse geöffnet wird. Der Unterdruck saugt den Faden in das Greiferrohr. Beim Verlassen der unteren Position des Greiferrohres wird die Greiferrohrklappe wieder geschlossen und klemmt den Faden, so dass er sicher in die Spleißeinrichtung überführt werden kann.In winding machines, in the case of a thread breakage, after clearing an error or during a change of reel, a thread automatic connection and, if necessary, a cop change mechanism are activated. That is, first, a suction nozzle is placed on the surface of the slowly rotating bobbin against the winding direction. After detecting the upper thread end, the suction nozzle pivots to its original position, in the suction nozzle opening is positioned below the splicer back, thereby inserting the upper thread in the splicer. Almost simultaneously with the suction nozzle pivots a gripper tube from its zero position, which it occupies during normal winding operation, first in a lower position, then pivots in an upper working position and brings a hitherto held in a thread tensioner or in a clamping device, from the drain spool withdrawn bobbin thread with. When swinging the gripper tube in its upper working position and the lower thread is positioned in the splicer. The gripper tube has at its end a gripper tube flap, which is opened when pivoting in the lower position by means of a shift gate. The negative pressure sucks the thread into the gripper tube. When leaving the lower position of the gripper tube, the gripper tube flap is closed again and clamps the thread, so that it can be safely transferred to the splicer.

Die DE 195 10 171 A1 offenbart eine gattungsgemäße Spulmaschine. Während des normalen Spulbetriebes wird das Greiferrohr in einer Nullposition vor dem normalen Fadenlauf geparkt. In dieser Position hat das Greiferrohr einen so großen Abstand von dem laufenden Faden, dass sich nach einem Reinigerschnitt oder einem Fadenbruch der herab fallende Faden nicht um das Greiferrohr oder die Greiferrohrklappe wickeln soll, sondern an dem Greiferrohr vorbei fällt. Es hat sich jedoch gezeigt, dass der Faden nach einem Bruch oder Schnitt häufig nicht in seinem regulären Lauf verbleibt, sondern sich aufgrund der Fadenspannung, die schlagartig entlastet wird, unkontrolliert bewegen kann. Der Abstand vom regulären Fadenlauf bietet demnach keinen ausreichenden Schutz vor Umschlingungen des Greiferrohres oder der Greiferrohrklappe. Die nachfolgenden Prozesse werden durch diese Umschlingungen negativ beeinflusst. Es kann dann keine sichere Erfassung des Unterfadens und damit auch keine sichere Spleißverbindung garantiert werden. Im Extremfall führt die Umschlingung zu einer Stillsetzung der Spulstelle. Dann ist ein Bedienereingriff erforderlich und der Faden muss manuell entfernt werden.The DE 195 10 171 A1 discloses a generic winding machine. During normal winding operation, the gripper tube is parked in a zero position in front of the normal threadline. In this position, the gripper tube has such a large distance from the running thread, that after a cleaner cut or a thread break the falling thread should not wrap around the gripper tube or the gripper tube flap, but falls past the gripper tube. However, it has been shown that the thread after a break or cut often does not remain in its regular course, but can move uncontrollably due to the thread tension, which is suddenly relieved. The distance from the regular yarn path therefore does not provide sufficient protection against wraps of the gripper tube or the gripper tube flap. The subsequent processes are adversely affected by these wraps. It can then no secure detection of the lower thread and thus no secure splice connection are guaranteed. In extreme cases, the wrap leads to a shutdown of the winding unit. Then an operator intervention is required and the thread must be removed manually.

Der Erfindung liegt damit die Aufgabe zugrunde, die vorgenannten Nachteile zu beheben oder zumindest die Wahrscheinlichkeit einer Fadenumschlingung des Greiferrohres oder der Greiferrohrklappe deutlich zu reduzieren.The invention is therefore based on the object to remedy the aforementioned disadvantages or at least significantly reduce the likelihood of Fadenumschlingung the gripper tube or the hook tube flap.

Die Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Verfahrensanspruches 1 sowie des Vorrichtungsanspruches 5 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 5. Advantageous developments of the invention are the subject of the dependent claims.

Zur Lösung der Aufgabe wird das Greiferrohr während des normalen Spulbetriebes so unterhalb eines im Fadenlauf angeordneten Fadenleitbleches positioniert, dass das fadenseitige Ende des Greiferrohres mit der Greiferrohrklappe vollständig von dem Fadenleitblech überdeckt wird. Auf diese Weise wird das Greiferrohr von dem Fadenleitblech abgeschirmt. Ein herab fallender Faden bleibt dabei eher auf dem Leitblech liegen als das Greiferrohr und die Greiferrohrklappe zu umschlingen. Solche Fadenleitbleche sind zum Einfädeln und Halten des Fadens in einem vorgegebenen Fadenlauf an Spulmaschinen bereits vorhanden. Die Fadenleitbleche sind dabei oberhalb einer Klemmvorrichtung positioniert. Zur Durchführung des erfindungsgemäßen Verfahrens sind also in der Regel keine mechanischen Änderungen erforderlich. Es ist allerdings denkbar, in den Fällen, in denen das Greiferohr nicht so positioniert werden kann, dass das bereits vorhandene Fadenleitblech eine Abschirmung der Greiferrohröffnung bewirkt, ein Fadenleitblech entsprechend auszubilden beziehungsweise zu verlängern. Diese Möglichkeit ist jedoch begrenzt, da das Fadenleitblech dann den Schwenkweg des Greiferrohres versperrt.To solve the problem, the gripper tube is positioned during normal winding operation below a Fadenleitbleches arranged in the yarn path that the thread-side end of the gripper tube is completely covered by the gripper tube flap of the Fadenleitblech. In this way, the gripper tube is shielded by the yarn guide. A falling thread remains more likely to lie on the baffle than to wrap around the hook tube and the hook tube flap. Such Fadenleitbleche are already available for threading and holding the thread in a given yarn path on winding machines. The Fadenleitbleche are positioned above a clamping device. For the implementation of the method according to the invention therefore usually no mechanical changes are required. However, it is conceivable in cases where the gripper tube can not be positioned so that the already existing Fadenleitblech causes a shielding of the gripper tube opening to form a Fadenleitblech accordingly or extend. This possibility is However, limited because the yarn guide then blocks the pivoting path of the hook tube.

Gemäß einer vorteilhaften Ausführungsform wird das Greiferrohr während des normalen Spulbetriebes so positioniert, dass der Steuernocken die Schaltkulisse berührt. Auf diese Weise wird eine Position des Greiferrohres nahe am Faden realisiert und damit die Öffnung des Greiferrohres unterhalb des Fadenleitbleches positioniert.According to an advantageous embodiment, the gripper tube is positioned during the normal winding operation so that the control cam touches the shift gate. In this way, a position of the gripper tube is realized close to the thread and thus positioned the opening of the gripper tube below the Fadenleitbleches.

Wenn man das Greiferrohr so anordnet, dass der Steuernocken die Schaltkulisse berührt, führt ein weiteres Schwenken des Greiferrohres in Richtung des Fadenlaufs sofort zu einem Öffnen der Greiferrohrklappe. Durch diese Positionierung wird der geringste Abstand zum Faden erreicht, bei dem die Klappe noch vollständig geschlossenen ist. Dadurch wird ein dauernder Druckluftverlust im Unterdrucksystem der Spulmaschine verhindert.If one arranges the gripper tube so that the control cam touches the shift gate, further pivoting of the gripper tube in the direction of the yarn path immediately leads to an opening of the gripper tube flap. This positioning achieves the smallest distance to the thread in which the flap is still completely closed. As a result, a permanent loss of compressed air in the vacuum system of the winder is prevented.

Sobald die Greiferrohrklappe geöffnet ist und der Faden von dem Greiferrohr angesaugt wird, sinkt die Wahrscheinlichkeit, dass er sich um das Greiferrohr oder die Greiferrohrklappe wickelt, deutlich. Damit der auf dem Fadenleitblech liegengebliebene Faden eingesaugt werden kann, wird die Klemmvorrichtung, die den Faden bis dahin gehalten hat, mit dem Öffnen der Greiferrohrklappe gelöst. Wenn das Greiferrohr so positioniert wird, dass der Steuernocken der Greiferrohrklappe die Schaltkulisse berührt, kann die Greiferrohrklappe besonders schnell geöffnet werden.As soon as the hook tube flap is opened and the thread is sucked in by the hook tube, the likelihood that it will wrap around the hook tube or the hook tube flap drops significantly. So that the thread remaining on the thread guide plate can be sucked in, the clamping device which has held the thread until then is released with the opening of the hook tube flap. If the gripper tube is positioned so that the control cam of the gripper tube flap touches the shift gate, the gripper tube flap can be opened very quickly.

In einer anderen Ausführungsform der Erfindung wird das Greiferrohr während des normalen Spulbetriebes so in Bezug auf die Schaltkulisse positioniert, dass die Greiferrohrklappe zumindest teilweise geöffnet ist. Diese Positionierung bringt trotz des oben beschriebenen Druckluftverlustes erhebliche Vorteile mit sich. Durch die dauernd anstehende Saugluft kann ein herunterfallender Faden direkt eingefangen werden. Weiterhin übt das Greiferrohr damit eine Entstaubungsfunktion aus, so dass in Spulmaschinen übliche separate Entstaubungseinrichtungen gegebenenfalls entfallen können.In another embodiment of the invention, the gripper tube during normal winding operation is positioned with respect to the shift gate, that the gripper tube flap is at least partially open. This positioning brings despite the compressed air loss described above, considerable advantages. Due to the continuous suction air, a falling thread can be caught directly. Furthermore, the gripper tube thus exerts a de-dusting function, so that in wind-up machines customary separate dedusting devices can optionally be omitted.

Gemäß einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens wird das Greiferrohr während des normalen Spulbetriebes so positioniert, dass der Abstand zwischen dem Mittelpunkt des fadenseitigen Öffnungsquerschnittes des Greiferrohres und dem Fadenlauf weniger als 40 mm beträgt. Durch die Unterschreitung dieses Abstandes kann zum einen erreicht werden, dass bei vielen gängigen Spulmaschinen das fadenseitige Ende des Greiferrohres unter einem ohnehin vorhandenen Fadenleitblech angeordnet ist. Zum anderen wird durch eine Positionierung mit einem Abstand von weniger als 40mm zwischen dem Fadenlauf und dem Mittelpunkt des Öffnungsquerschnittes erreicht, dass die Saugöffnung des Greiferrohres bereits vor Auftreten eines Fadenbruches oder Reinigerschnittes nahe am Faden angeordnet und nicht erst einen langen Schwenkweg vollziehen muss, wenn der Fadenlauf unterbrochen wird. Dadurch verkürzt sich bei einen Fadenbruch oder Reinigerschnitt die Zeit für das Herabschwenken des Greiferrohres und das Öffnen der Greiferrohrklappe. Wie oben bereits erläutert, reduziert ein schnelles Ansaugen des Fadens durch das Greiferrohr ebenfalls die Wahrscheinlichkeit einer Umschlingung.According to a preferred embodiment of the method according to the invention, the gripper tube during normal winding operation is positioned so that the distance between the center of the thread-side opening cross section of the gripper tube and the yarn path is less than 40 mm. By falling below this distance can be achieved on the one hand, that in many common winding machines, the thread-side end of the gripper tube is arranged under an already existing thread guide plate. On the other hand is achieved by positioning with a distance of less than 40mm between the yarn path and the center of the opening cross section that the suction port of the gripper tube already arranged before the occurrence of a thread break or cleaner cut close to the thread and not only have to perform a long pivoting when the Threadline is interrupted. This shortens the time for the pivoting down of the gripper tube and the opening of the gripper tube flap in a thread break or cleaner cut. As already explained above, a quick suction of the thread through the gripper tube also reduces the likelihood of looping.

Die erfindungsgemäße Position des Greiferrohres während des normalen Spulprozesses, kann auch als Nullposition dienen und immer dann eingenommen werden, wenn das Greiferrohr keinen Faden aufnimmt oder in die Spleißeinrichtung überführt. Es ist aber auch möglich, dass das Greiferrohr eine Nullposition in größerem Abstand vom regulären Fadenlauf einnehmen kann und erst mit Beginn des Spulbetriebes näher zum Faden geschwenkt wird.The inventive position of the gripper tube during the normal winding process, can also serve as a zero position and are always taken when the gripper tube receives no thread or transferred to the splicer. But it is also possible that the gripper tube a zero position in a larger Distance from the regular thread run can take and is pivoted closer to the thread only at the beginning of the winding operation.

Die Aufgabe wird weiterhin durch eine Arbeitsstelle einer Spulmaschine mit einer Fadenverbindungseinrichtung und einem saugluftbeaufschlagten Greiferrohr gelöst, das schwenkbar gelagert und zum funktionsgerechten Positionieren des ihm zugeordneten Fadens in der Fadenverbindungseinrichtung ausgebildet ist, und endseitig eine Greiferrohrklappe zum Verschließen der fadenseitigen Öffnung des Greiferrohres besitzt, die Greiferrohrklappe einen Steuernocken aufweist, durch dessen Eingriff in eine stationäre Schaltkulisse die Öffnungsstellung der Greiferrohrklappe steuerbar ist. Dabei ist das Greiferrohr mittels einer Steuervorrichtung automatisch positionierbar. Weiterhin ist im Fadenlauf ein Fadenleitblech angeordnet. Erfindungsgemäß ist die Steuervorrichtung dazu eingerichtet, das Greiferrohr während des normalen Spulbetriebes automatisch so zu positionieren, dass das fadenseitige Ende des Greiferrohres mit der Greiferrohrklappe vollständig von dem Fadenleitblech überdeckt wird.The object is further achieved by a workstation of a winder with a thread connecting device and a suction gripper tube, which is pivotally mounted and formed for functionally correct positioning of its associated thread in the thread connecting device, and end has a gripper tube flap for closing the thread-side opening of the gripper tube, the gripper tube flap a control cam, by the engagement in a stationary shift gate, the open position of the hook tube flap is controllable. In this case, the gripper tube is automatically positioned by means of a control device. Furthermore, a yarn guide is arranged in the yarn path. According to the invention, the control device is adapted to automatically position the gripper tube during the normal winding operation such that the thread-side end of the gripper tube with the gripper tube flap is completely covered by the thread guide plate.

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

Es zeigen:

Fig. 1
eine Seitenansicht einer Arbeitsstelle eines Kreuzspulautomaten;
Fig. 2
einen Ausschnitt der Seitenansicht im Bereich des Greiferrohres;
Fig. 3
eine Vorderansicht von Fig. 2;
Fig. 4
eine Draufsicht von Fig. 2.
Show it:
Fig. 1
a side view of a job of a cheese winder;
Fig. 2
a section of the side view in the region of the gripper tube;
Fig. 3
a front view of Fig. 2 ;
Fig. 4
a top view of Fig. 2 ,

Fig. 1 zeigt in Seitenansicht eine Arbeitsstelle 10 eines Kreuzspulautomaten 1. Derartige Kreuzspulautomaten verfügen über eine Vielzahl solcher nebeneinander angeordneter Arbeitsstellen 10, auf denen Vorlagespulen 12, vorzugsweise Spinnkopse, zu großvolumigen Kreuzspulen 14 umgespult werden. Fig. 1 shows in side view a job 10 of a cheese winder 1. Such cheese machines have a variety of such juxtaposed jobs 10 on which feed bobbins 12, preferably spinning cops, are rewound to large-volume cheeses 14.

Die Spinnkopse 12 gelangen dabei über eine Transporteinrichtung 16 zu den einzelnen Arbeitsstellen 10, die, wie an sich bekannt, eine Vielzahl, im einzelnen nicht näher bezeichneter Transportstrecken umfasst, auf denen, auf Transporttellern 20 aufgesteckt, Spinnkopse 12 bzw. Leerhülsen 18 befördert werden. Wie in Fig. 1 angedeutet, wird von einem in einer Spulposition 61 angeordneten Spinnkops 12 ein Faden 22 abgezogen, der auf seinem Weg zur Kreuzspule 14 zunächst einen Unterfadensensor 28, der über eine Signalleitung 30 mit einem Arbeitsstellenrechner 32 verbunden ist, passiert. Mittels dieses Unterfadensensors 28 wird zum Beispiel nach einem Fadenbruch oder einem kontrollierten Fadenschnitt, vor Einleitung der Oberfadensuche, festgestellt, ob überhaupt ein Unterfaden vorhanden ist. Oberhalb des Unterfadensensors 28 ist eine Vorrichtung 36, die das Spannen und Klemmen des Fadens 22 ermöglicht, angeordnet. Die Spann-/Klemmvorrichtung 36 ist über eine Steuerleitung 38 ebenfalls mit dem Arbeitsstellenrechner 32 verbunden. Oberhalb der Spann-/Klemmvorrichtung 36 ist ein Fadenleitblech 63 angeordnet.The spinning cops 12 arrive via a transport device 16 to the individual workstations 10, which, as known per se, includes a plurality of unspecified transport routes on which, plugged on transport plates 20, spin cops 12 and empty tubes 18 are conveyed. As in Fig. 1 indicated, a thread 22 is withdrawn from a spinning cop 12 arranged in a winding position 61, which initially passes on its way to the cheese 14 a lower thread sensor 28, which is connected via a signal line 30 to a workstation computer 32. By means of this lower thread sensor 28, for example, after a yarn break or a controlled thread cut, before initiating the Oberfadensuche determined whether at all a bobbin thread is present. Above the lower thread sensor 28, a device 36, which allows the clamping and clamping of the thread 22, is arranged. The tensioning / clamping device 36 is also connected via a control line 38 to the workstation computer 32. Above the tensioning / clamping device 36, a yarn guide plate 63 is arranged.

Im weiteren Lauf des Fadens ist zur Feststellung von Garnfehlern ein Fadenreiniger 44 angeordnet. Mittels dieses Fadenreinigers 44 wird ständig die Qualität des laufenden Fadens überwacht, wobei die Signale des Fadenreinigers 44 zur Auswertung über eine Signalleitung 48 dem Arbeitsstellenrechner32 zugeführt werden. Beim Auftreten eines Garnfehlers kann vom Arbeitsstellenrechner 32 über eine Steuerleitung 50 eine Fadenschneideinrichtung 52 betätigt und der Faden 22 getrennt werden. Alternativ kann der Fadenreiniger 44 auch eine eigene Auswerteeinheit zur Qualitätsüberwachung aufweisen.In the further course of the thread, a thread cleaner 44 is arranged to detect yarn defects. By means of this thread cleaner 44, the quality of the running thread is constantly monitored, wherein the signals of the thread cleaner 44 are supplied to the Arbeitsstellenrechner32 for evaluation via a signal line 48. When a yarn fault occurs can be operated by the workstation 32 via a control line 50, a thread cutting device 52 and the thread 22 are separated. Alternatively, the thread cleaner 44 may also have its own evaluation unit for quality control.

In Fadenlaufrichtung nach dem Fadenreiniger 44 sind noch ein Fadenzugkraftsensor 54 sowie eine Paraffiniereinrichtung 46 angeordnet. Der Fadenzugkraftsensor 54 ist dabei über eine Signalleitung 56 ebenfalls mit dem Arbeitsstellenrechner 32 verbunden. Auf die Paraffiniereinrichtung 46 folgt in Fadenlaufrichtung schließlich ein Fadenführer 58, durch den der Faden 22 beispielsweise auf eine sogenannte Fadenführungstrommel 60 aufläuft, die für eine kreuzweise Verlegung des Fadens 22 nach der Wicklungsart "wilde Wicklung" sorgt. Die Kreuzspule 14 ist über eine nicht näher dargestellte Hülse in einem schwenkbar gelagerten Spulenrahmen 6 drehbar gelagert und liegt dabei mit ihrem Außenumfang an der einzelmotorisch angetriebenen Fadenführungstrommel 60 auf, die die Kreuzspule 14 über Reibschluss mitnimmt.In the thread running direction after the thread cleaner 44, a yarn tension sensor 54 and a paraffining device 46 are still arranged. The yarn tensile force sensor 54 is also connected via a signal line 56 to the workstation computer 32. On the waxing device 46 follows in the direction of yarn finally a yarn guide 58, through which the thread 22 runs, for example, on a so-called yarn guide drum 60, which ensures a crosswise laying of the thread 22 according to the winding type "wild winding". The cross-wound bobbin 14 is rotatably supported by a sleeve, not shown in a pivotally mounted creel 6 and lies with its outer periphery on the motor driven individually driven yarn guide drum 60, which carries the cross-wound bobbin 14 via frictional engagement.

Außerhalb des regulären Fadenlaufweges ist außerdem eine Fadenspleißvorrichtung 40 angeordnet, die über eine Signalleitung 42 ebenfalls mit dem Arbeitsstellenrechner 32 verbunden ist. Die Saugdüse 7 dient zum Aufnehmen eines auf die Kreuzspule 14 aufgelaufenen Oberfadens.Outside of the regular yarn path, a yarn splicing device 40 is also arranged, which is also connected via a signal line 42 to the workstation computer 32. The suction nozzle 7 serves to receive an accumulated on the cheese 14 upper thread.

Das Greiferrohr 8 dient zum Ergreifen des vom Spinnkops 12 stammenden Unterfadens, der bei einem kontrollierten Fadenreinigerschnitt oder bei einem Fadenbruch oberhalb der Spann-/Klemmvorrichtung 36 in der Spann-/Klemmvorrichtung 36 festgeklemmt wird. Das Greiferrohr ist schwenkbar gelagert und weist eine motorischen Antrieb auf, der über die Steuerleitung 62 vom Arbeitsstellenrechner 32 angesteuert wird.The gripper tube 8 serves to grasp the lower thread originating from the spinning cop 12 which is clamped in the tensioning / clamping device 36 in the case of a controlled thread cleaner cut or in the event of a yarn break above the tensioning / clamping device 36. The gripper tube is pivotally mounted and has a motor drive, which is controlled by the workstation computer 32 via the control line 62.

Fig. 2 zeigt einen Ausschnitt der Seitenansicht der Arbeitsstelle. Die Figuren 3 und 4 zeigen zu der gleichen Anordnung jeweils eine Vorderansicht und eine Draufsicht. Fig. 2 shows a section of the side view of the job. The FIGS. 3 and 4 show for the same arrangement respectively a front view and a top view.

Das Greiferrohr 8 weist endseitig eine Greiferrohrklappe 64 mit einem Steuernocken 66 auf. In Fig. 2 ist die durch die Greiferrohrklappe 64 verdeckte fadenseitige Öffnung 67 durch eine gestrichelte Linie angedeutet. Der in den Figuren dargestellte Fadenlauf entspricht dem Fadenlauf während des normalen Spulbetriebes. Im Schwenkbereich des Greiferrohres 8 ist eine Schaltkulisse 65 angeordnet, die bei einem Herabschwenken des Greiferrohres 8 in Richtung des Fadens 22 über den Steuernocken 66 die Greiferrohrklappe 64 aufsteuert. Weiterhin ist die Spann-/Klemmvorrichtung 36 und das oberhalb dieser Vorrichtung angeordnete Fadenleitblech 63 dargestellt.The gripper tube 8 has at its end a gripper tube flap 64 with a control cam 66. In Fig. 2 is the hidden by the hook tube flap 64 thread-side opening 67 indicated by a dashed line. The yarn path shown in the figures corresponds to the yarn path during normal winding operation. In the swivel range of the gripper tube 8, a shift gate 65 is arranged, the control tube 66 aufsteuert the hook tube flap 64 in a downward pivoting of the gripper tube 8 in the direction of the thread 22. Furthermore, the clamping / clamping device 36 and arranged above this device yarn guide plate 63 is shown.

Das Fadenleitblech 63 hält den Faden 22 im vorgesehen Fadenlauf, insbesondere wird der Faden 22 durch das Fadenleitblech 63 entlang der Spann-/Klemmvorrichtung 36 geführt, so dass bei einem Reinigerschnitt oder einem Fadenbruch oberhalb der Spann-/Klemmvorrichtung 36 der Faden 22 auch sicher geklemmt wird. Außerdem ist das Fadenleitblech 63 zum Einfädeln des Fadens 22 in den Fadenlauf ausgebildet, insbesondere wenn das Greiferrohr 8 den Unterfaden in die Fadenspleißvorrichtung 40 einlegt.The yarn guide plate 63 holds the thread 22 in the threadline provided, in particular, the thread 22 is guided through the thread guide plate 63 along the tensioning / clamping device 36, so that at a cleaner cut or a thread break above the tensioning / clamping device 36 of the thread 22 also clamped securely becomes. In addition, the yarn guide plate 63 is formed for threading the thread 22 in the yarn path, in particular when the gripper tube 8 inserts the lower thread in the Fadensleißvorrichtung 40.

Der Mittelpunkt 68 des Querschnitts der fadenseitigen Öffnung 67 des Greiferrohres 8 weist einem Abstand d vom regulären Fadenlauf auf. Erfindungsgemäß beträgt dieser Abstand d im normalen Spulbetrieb weniger als 40mm. In den Figuren berührt der Steuernocken 66 der Greiferrohrklappe 64 die Steuerkulisse 65 oder anders ausgedrückt die Steuerkulisse 65 bildet eine Tangente an den runden Steuernocken 66. Aufgrund dieser Anordnung führt ein weiteres Schwenken des Greiferrohres 8 in Richtung des Fadens 22 sofort zu einem Öffnen der Greiferrohrklappe 64. Alternativ kann das Greiferrohr 8 während des normalen Spulbetriebes auch weiter in Richtung des Fadens 22 positioniert sein. Dadurch ist die Greiferrohrklappe 64 während des Spulbetriebes teilweise geöffnet, so dass das Greiferrohr 8 als Fangdüse arbeitet und gleichzeitig der Entstaubung dient. Die jeweilige Position wird vom Greiferrohr 8 durch Ansteuerung des Arbeitsstellenrechners 32 automatisch eingenommen, sobald sich die Spulstelle im Spulbetrieb befindet.The center 68 of the cross section of the thread-side opening 67 of the gripper tube 8 has a distance d from the regular yarn path. According to the invention, this distance d is less than 40 mm in the normal winding operation. In the figures, the control cam 66 of the hook tube flap 64 touches the control link 65 or in other words the control link 65 forms a tangent to the circular control cam 66. Due to this arrangement, further pivoting of the hook tube 8 in the direction of the thread 22 immediately leads to opening of the Gripper tube flap 64. Alternatively, the gripper tube 8 may also be positioned further in the direction of the thread 22 during the normal winding operation. As a result, the hook tube flap 64 is partially opened during the winding operation, so that the hook tube 8 operates as a catching nozzle and at the same time serves for dedusting. The respective position is automatically taken by the gripper tube 8 by driving the workstation 32, as soon as the winding unit is in winding operation.

Das Greiferrohr 8 wird erfindungsgemäß während des Spulens so vor dem Faden positioniert, dass das Fadenleitblech 63 das fadenseitige Ende des Greiferrohres 8 mit der Greiferrohrklappe 64 vollständig überdeckt.According to the invention, the hook tube 8 is positioned in front of the thread during winding so that the yarn guide plate 63 completely covers the thread-side end of the hook tube 8 with the hook tube flap 64.

Claims (5)

Verfahren zum Betreiben einer Arbeitsstelle (10) einer Spulmaschine (1) mit einer Fadenverbindungseinrichtung (40), insbesondere einer Spleißeinrichtung zum pneumatischen Verbinden von Fadenenden, und einem saugluftbeaufschlagten Greiferrohr (8), das schwenkbar gelagert und zum funktionsgerechten Positionieren des ihm zugeordneten Fadens (22) in der Fadenverbindungseinrichtung (40) ausgebildet ist, und endseitig eine Greiferrohrklappe (64) zum Verschließen der fadenseitigen Öffnung (67) des Greiferrohres (8) besitzt, wobei die Greiferrohrklappe (64) einen Steuernocken (66) aufweist, über dessen Eingriff in eine stationäre Schaltkulisse (65) die Öffnungsstellung der Greiferrohrklappe (64) steuerbar ist, dadurch gekennzeichnet, dass das Greiferrohr (8) während des normalen Spulbetriebes so unterhalb eines im Fadenlauf angeordneten Fadenleitbleches (63) positioniert wird, dass das fadenseitige Ende des Greiferrohres (8) mit der Greiferrohrklappe (64) vollständig von dem Fadenleitblech (63) überdeckt wird.Method for operating a workstation (10) of a winding machine (1) having a thread connecting device (40), in particular a splicing device for pneumatically connecting thread ends, and a gripper tube (8) loaded with suction air, which is mounted pivotably and positioned for functionally correct positioning of the thread (22 ) in the thread connecting means (40) is formed, and at the end a gripper tube flap (64) for closing the thread side opening (67) of the gripper tube (8), wherein the gripper tube flap (64) has a control cam (66) via its engagement in a stationary shift gate (65) the opening position of the gripper tube flap (64) is controllable, characterized in that the gripper tube (8) during normal winding operation is positioned below a yarn guide plate (63) arranged in the thread run that the thread-side end of the gripper tube (8) with the hook tube flap (64) completely from the Fadenleitb lech (63) is covered. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Greiferrohr (8) während des normalen Spulbetriebes so positioniert wird, dass der Steuernocken (66) die Schaltkulisse (65) berührt.A method according to claim 1, characterized in that the gripper tube (8) during normal winding operation is positioned so that the control cam (66) touches the shift gate (65). Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Greiferrohr (8) während des normalen Spulbetriebes so in Bezug auf die Schaltkulisse (65) positioniert wird, dass die Greiferrohrklappe (64) zumindest teilweise geöffnet ist.A method according to claim 1, characterized in that the gripper tube (8) during normal winding operation is positioned in relation to the shift gate (65) so that the gripper tube flap (64) is at least partially opened. Verfahren nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Greiferrohr (8) während des normalen Spulbetriebes so positioniert wird, dass der Abstand (d) zwischen dem Mittelpunkt (68) des Querschnitts der fadenseitigen Öffnung (67) des Greiferrohres (8) und dem Fadenlauf weniger als 40 mm beträgt.Method according to one of the preceding claims, characterized in that the gripper tube (8) during normal winding operation is positioned so that the distance (d) between the center (68) of the cross-section of the thread-side opening (67) of the gripper tube (8) and the yarn path is less than 40 mm. Arbeitsstelle (10) einer Spulmaschine (1) mit einer Fadenverbindungseinrichtung (40), insbesondere einer Spleißeinrichtung zum pneumatischen Verbinden von Fadenenden, und einem saugluftbeaufschlagten Greiferrohr (8), das schwenkbar gelagert und zum funktionsgerechten Positionieren des ihm zugeordneten Fadens (22) in der Fadenverbindungseinrichtung (40) ausgebildet ist, und endseitig eine Greiferrohrklappe (64) zum Verschließen der fadenseitigen Öffnung (67) des Greiferrohres (8) besitzt, wobei die Greiferrohrklappe (64) einen Steuernocken (66) aufweist, durch dessen Eingriff in eine stationäre Schaltkulisse (65) die Öffnungsstellung der Greiferrohrklappe (64) steuerbar ist, und wobei das Greiferrohr (8) mittels einer Steuervorrichtung (32) automatisch positionierbar ist, dadurch gekennzeichnet, dass im Fadenlauf ein Fadenleitblech (63) angeordnet ist und dass die Steuervorrichtung (32) dazu eingerichtet ist, das Greiferrohr (8) während des normalen Spulbetriebes automatisch so zu positionieren, dass das fadenseitige Ende des Greiferrohres (8) mit der Greiferrohrklappe (64) vollständig von dem Fadenleitblech (63) überdeckt wird.Workstation (10) of a winding machine (1) with a thread connecting device (40), in particular a splicing device for pneumatically connecting thread ends, and an intake air-loaded gripper tube (8) pivotally mounted and for functionally correct positioning of its associated thread (22) in the thread connecting device (40) is formed, and at the end a gripper tube flap (64) for closing the thread-side opening (67) of the gripper tube (8), wherein the gripper tube flap (64) has a control cam (66) by its engagement in a stationary shift gate (65 ), the opening position of the gripper tube flap (64) is controllable, and wherein the gripper tube (8) by means of a control device (32) is automatically positioned, characterized in that a yarn guide plate (63) is arranged in the yarn path and that the control device (32) set up is, the gripper tube (8) during normal winding operation automatically so position that the thread-side end of the gripper tube (8) with the gripper tube flap (64) is completely covered by the thread guide plate (63).
EP20090012492 2008-11-14 2009-10-02 Workplace of a spooling machine with a gripper tube loaded with suction air Active EP2186766B1 (en)

Applications Claiming Priority (1)

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DE102008057321A DE102008057321A1 (en) 2008-11-14 2008-11-14 Workstation of a winder with a suction-loaded gripper tube

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EP2186766A2 true EP2186766A2 (en) 2010-05-19
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107161800A (en) * 2016-03-08 2017-09-15 索若德国两合股份有限公司 Produce the Yarn twisting device of the station of the weaving loom of cross winding bobbin
CN107585631A (en) * 2017-09-15 2018-01-16 青岛宏大纺织机械有限责任公司 The device and method of tail yarn on a kind of removal cop
CN111747233A (en) * 2019-03-26 2020-10-09 卓郎纺织解决方案两合股份有限公司 Method for producing a piecing connection at a textile machine station and textile machine station
CH718214A1 (en) * 2020-12-23 2022-06-30 Rieter Ag Maschf Guide element and work station of a ring spinning machine equipped therewith.
EP4151576A1 (en) * 2021-09-15 2023-03-22 Rieter Automatic Winder GmbH Thread transfer device

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* Cited by examiner, † Cited by third party
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510171A1 (en) 1994-07-07 1996-01-25 Schlafhorst & Co W Thread connecting device for textile machines producing cross-wound bobbins

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE923415C (en) * 1951-09-07 1955-02-10 Reiners Walter Dr Ing Method and device for feeding thread ends to be connected to one another to a device for connecting the thread ends on winding machines
DE1267155B (en) * 1961-06-19 1968-04-25 Reiners Walter Dr Ing Device for avoiding double threads in the knotter of an automatic winding machine
GB2016547B (en) * 1978-03-13 1982-06-03 Reiners Verwaltungs Gmbh Correcting threads in winding machines
DE4331308A1 (en) * 1993-09-15 1995-03-16 Schlafhorst & Co W Unwinding station of an automatic winding machine
DE19650933A1 (en) * 1996-12-07 1998-06-10 Schlafhorst & Co W Winding unit of a textile machine producing cross-wound bobbins
DE19938432A1 (en) * 1999-08-13 2001-02-15 Schlafhorst & Co W Thread connecting device for a textile machine producing cross-wound bobbins
JP4277227B2 (en) * 2006-05-15 2009-06-10 村田機械株式会社 Method for extracting winding package in automatic winder and automatic winder
DE102006044980A1 (en) * 2006-09-23 2008-04-03 Oerlikon Textile Gmbh & Co. Kg Cross wound bobbin manufacturing textile machine, has components, which are arranged at common support for thread guide and thread control, and support of arrangement of components is provided at working places
ITMI20070133A1 (en) * 2007-01-29 2008-07-30 Savio Macchine Tessili Spa SUCTION SYSTEM FOR ROCKERS

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510171A1 (en) 1994-07-07 1996-01-25 Schlafhorst & Co W Thread connecting device for textile machines producing cross-wound bobbins

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107161800A (en) * 2016-03-08 2017-09-15 索若德国两合股份有限公司 Produce the Yarn twisting device of the station of the weaving loom of cross winding bobbin
CN107161800B (en) * 2016-03-08 2019-08-20 索若德国两合股份有限公司 Produce the Yarn twisting device of the station of the weaving loom of cross winding bobbin
CN107585631A (en) * 2017-09-15 2018-01-16 青岛宏大纺织机械有限责任公司 The device and method of tail yarn on a kind of removal cop
CN111747233A (en) * 2019-03-26 2020-10-09 卓郎纺织解决方案两合股份有限公司 Method for producing a piecing connection at a textile machine station and textile machine station
CH718214A1 (en) * 2020-12-23 2022-06-30 Rieter Ag Maschf Guide element and work station of a ring spinning machine equipped therewith.
EP4151576A1 (en) * 2021-09-15 2023-03-22 Rieter Automatic Winder GmbH Thread transfer device

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EP2186766B1 (en) 2012-06-20
DE102008057321A1 (en) 2010-05-20
CN101734519A (en) 2010-06-16
EP2186766A3 (en) 2011-01-19
CN101734519B (en) 2012-11-14

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