EP1561845A2 - Method for monitoring the core element during production of core-garn - Google Patents

Method for monitoring the core element during production of core-garn Download PDF

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Publication number
EP1561845A2
EP1561845A2 EP05002084A EP05002084A EP1561845A2 EP 1561845 A2 EP1561845 A2 EP 1561845A2 EP 05002084 A EP05002084 A EP 05002084A EP 05002084 A EP05002084 A EP 05002084A EP 1561845 A2 EP1561845 A2 EP 1561845A2
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EP
European Patent Office
Prior art keywords
core
roller
core thread
roving
thread
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
EP05002084A
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German (de)
French (fr)
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EP1561845A3 (en
EP1561845B1 (en
Inventor
Robert Nägeli
Stefan Zimmermann
Stefania Massieri
Hans-Peter Schatzmann
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP1561845A2 publication Critical patent/EP1561845A2/en
Publication of EP1561845A3 publication Critical patent/EP1561845A3/en
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Publication of EP1561845B1 publication Critical patent/EP1561845B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/1616—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material characterised by the detector
    • D01H13/1633—Electronic actuators
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D02G3/367—Cored or coated yarns or threads using a drawing frame

Definitions

  • the invention relates to a method for producing core yarn, wherein a core thread a roving is fed before the roving is solidified by rotation, and a device for this.
  • core yarn is produced by stretching a wire Sliver and its consolidation by turning a Corefaden in the roving inserted and wrapped by sheath fibers, so that the core thread as possible is no longer visible. In this way, for example, an elastic yarn produced.
  • the core thread significantly determines the strength and elongation of the produced core yarns, while the sheath fibers especially the handle and the Determine the appearance of the yarn.
  • As a corefade therefore serve as a rule synthetic threads, while as sheath fibers mostly staple fibers, such as cotton and / or wool are used.
  • core yarn is described for example in DE 195 01 163 C1 or also DE 198 15 054 C1.
  • the present invention is based on the object of producing core yarns to improve and accelerate.
  • This monitoring quickly detects if a core thread is broken, This can also be done very quickly an intervention in the spinning process, the Thread breakage corrects and as soon as possible to another proper Manufacturing process of the core yarn leads.
  • the monitoring can be done in any way. It is thought of one mechanical monitoring, which senses the presence of Vorfadens on optical devices that consider the core thread or capacitive or inductive monitoring. However, there are other options, including the Invention should be included. It is essential that a thread break as possible should be recognized quickly.
  • the Corefaden certain specifications For example, the defaults may be on his Take shape. If the diameter of the core thread falls below a desired limit this can also be detected by the monitoring device. This applies Also, if, for example, the core thread has a certain coating, the can be recognized in color.
  • the present invention includes all conceivable Possibilities of surveillance.
  • a role is assigned to the core thread, which rotates with the core thread.
  • the rotation of this roller is observed.
  • this can be done optically by For example, a corresponding photo sensor as a receiver reflected light from Parts of the wheel, for example, spokes, webs or the hub recognizes.
  • a transmitter is assigned to the photosensor, which emits light, which is reflected. If this light reaches the receiver in a pulsating manner, this means that the reel is rotating, i.e. no thread break has occurred. But the receiver gives a continuous signal to a monitoring unit, this means that the role is and the core thread is broken.
  • the roller is located on a pivot arm, in which the entire Testing device for the rotation of the roller is included. This is especially true for the above mentioned light source and the receiver, wherein, as also mentioned above, also other testing equipment can be used.
  • a roving 1 is passed through a drafting 2 and there in a known Manner stretched or refined.
  • the drafting 2 consists essentially of known upper rollers 3.1 to 3.3 and lower rollers 4.1 to 4.3, wherein upper roller 3.2 and lower roller 4.2 still with also known 5.1 and 5.2 straps interact.
  • the Corefaden as described for example in DE 198 15 054 C1, with the Filled roving 1. Both leave as a core yarn the drafting 2 in the direction Garnhülse 9. Before running onto the yarn tube 9, the core yarn 8 still passes a yarn guide (Sauschwänzle) 10 and a ring traveler 11th
  • a Monitoring device 12 assigned between drafting 2 and Corefaden arrived 7 is the core thread 6 .
  • This has a housing-fixed arm 13, which is connected via a hinge 14 with a pivot arm 15. At the free end of the pivot arm 15 is seated a roller 16, partially from the core thread. 6 is entwined and driven by this.
  • FIG. 15 Parts of the pivot arm 15 are shown in FIG. At one point, the swivel arm 15 a joint sleeve 17, which is part of the joint 14 with the support arm 13.
  • a print 19 is mounted on a Schwenkarmgephinuse 18, on which a not shown in detail electronics for controlling the monitoring of Corefadens 6 is arranged.
  • This also includes a switch 20, with which the electronics, be turned off, for example, in a pivoting of the pivot arm 15 can.
  • the electronics also includes a transmitter 21 and a next arranged, not shown receiver for example, an optical signal.
  • Transmitter 21 and receiver are inserted into corresponding receptacles 22 and 23 in the Schwenkarmgephinuse 18 and can look at spokes 16 of the role 16.
  • the role 16 still has one Running groove 25 for the core thread 6.
  • the core thread 6 is subtracted from the Corefaden appointed 7 and the roving. 1 fed. Before the union with the roving 1 of the core thread 6 rotates the role 16. In this case, the core thread 6 rotates the roller 16, wherein the rotation is observed.
  • the transmitter 21 emits a light, which from the spokes 24 for Receiver is reflected. If the received light is pulsating, then there is no Thread break before. On the other hand, if the received light is steady, there is a thread break since either constantly light from a spoke 24 or no light is reflected.

Abstract

In the production of a core yarn (8), a core filament (6) is introduced into a fiber roving (1) before it is twisted and fixed. The core filament passes over a roller (16) on a swing arm (15), which also carries a filament monitor using a mechanical, optical, capacitative or inductive system.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen von Core-Garn, wobei ein Corefaden einer Faserlunte zugeführt wird, bevor die Faserlunte durch Drehung verfestigt wird, sowie eine Vorrichtung hierfür.The invention relates to a method for producing core yarn, wherein a core thread a roving is fed before the roving is solidified by rotation, and a device for this.

STAND DER TECHNIKSTATE OF THE ART

Bekanntermassen wird Core-Garn dadurch hergestellt, dass beim Verstrecken einer Faserlunte und deren Verfestigung durch Drehen ein Corefaden in die Faserlunte eingelegt und von Mantelfasern umsponnen wird, so dass der Corefaden möglichst nicht mehr sichtbar ist. Auf diese Weise wird beispielsweise ein elastisches Garn hergestellt. Der Corefaden bestimmt wesentlich die Festigkeit und die Dehnung des erzeugten Core-Garns, während die Mantelfasern vor allem den Griff und das Erscheinungsbild des Garns bestimmen. Als Corefaden dienen daher in aller Regel synthetische Fäden, während als Mantelfasern meist Stapelfasern, wie Baumwolle und/oder Wolle eingesetzt werden.It is known that core yarn is produced by stretching a wire Sliver and its consolidation by turning a Corefaden in the roving inserted and wrapped by sheath fibers, so that the core thread as possible is no longer visible. In this way, for example, an elastic yarn produced. The core thread significantly determines the strength and elongation of the produced core yarns, while the sheath fibers especially the handle and the Determine the appearance of the yarn. As a corefade therefore serve as a rule synthetic threads, while as sheath fibers mostly staple fibers, such as cotton and / or wool are used.

Die Herstellung von Core-Garn wird beispielsweise in der DE 195 01 163 C1 oder auch der DE 198 15 054 C1 beschrieben.The production of core yarn is described for example in DE 195 01 163 C1 or also DE 198 15 054 C1.

AUFGABETASK

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die Herstellung von Core-Garnen zu verbessern und zu beschleunigen.The present invention is based on the object of producing core yarns to improve and accelerate.

LÖSUNG DER AUFGABESOLUTION OF THE TASK

Zur Lösung dieser Aufgabe führt, dass der Core-Faden vor der Vereinigung mit der Faserlunte insbesondere auf Bruch überwacht wird.To solve this task leads that the core thread before the union with the Filled roving is monitored especially for breakage.

Durch diese Überwachung wird sehr schnell erkannt, ob ein Corefaden gebrochen ist, damit auch sehr schnell ein Eingriff in den Spinnvorgang erfolgen kann, der den Fadenbruch behebt und möglichst schnell zu einem weiteren ordnungsgemässen Herstellvorgang des Core-Garns führt. This monitoring quickly detects if a core thread is broken, This can also be done very quickly an intervention in the spinning process, the Thread breakage corrects and as soon as possible to another proper Manufacturing process of the core yarn leads.

Die Überwachung kann auf beliebige Art und Weise erfolgen. Gedacht ist an eine mechanische Überwachung, welche das Vorhandensein des Vorfadens ertastet, an optische Einrichtungen, welche den Corefaden betrachten oder auch an kapazitive oder induktive Überwachung. Es gibt jedoch noch weitere Möglichkeiten, die auch von der Erfindung umfasst sein sollen. Wesentlich ist allein, dass ein Fadenbruch möglichst rasch erkannt werden soll.The monitoring can be done in any way. It is thought of one mechanical monitoring, which senses the presence of Vorfadens on optical devices that consider the core thread or capacitive or inductive monitoring. However, there are other options, including the Invention should be included. It is essential that a thread break as possible should be recognized quickly.

Ausser einem Fadenbruch ist aber auch eine Feststellung möglich, ob der Corefaden bestimmten Vorgaben entspricht. Die Vorgaben können sich beispielsweise auf seine Form beziehen. Nimmt der Durchmesser des Corefadens unter ein gewünschtes Limit ab, so kann dies ebenfalls von der Überwachungseinrichtung erkannt werden. Dies gilt auch, wenn beispielsweise der Corefaden eine bestimmte Beschichtung aufweist, die farblich zu erkennen ist. Die vorliegende Erfindung umfasst alle denkbaren Möglichkeiten der Überwachung.Except a thread break but also a statement is possible, whether the Corefaden certain specifications. For example, the defaults may be on his Take shape. If the diameter of the core thread falls below a desired limit this can also be detected by the monitoring device. this applies Also, if, for example, the core thread has a certain coating, the can be recognized in color. The present invention includes all conceivable Possibilities of surveillance.

In einem bevorzugten Ausführungsbeispiel ist dem Corefaden eine Rolle zugeordnet, welche mit dem Corefaden dreht. Die Drehung dieser Rolle wird beobachtet. In einem einfachen Ausführungsbeispiel kann dies auf optischem Wege erfolgen, indem beispielsweise ein entsprechender Fotosensor als Empfänger reflektiertes Licht von Teilen des Rades, beispielsweise von Speichen, Stegen oder der Nabe, erkennt. In diesem Fall ist dem Fotosensor ein Sender zugeordnet, der Licht ausstrahlt, welches reflektiert wird. Gelangt dieses Licht pulsierend zum Empfänger, so bedeutet dies, dass die Rolle dreht, d.h., dass kein Fadenbruch stattgefunden hat. Gibt der Empfänger aber ein Dauersignal an eine Überwachungseinheit ab, so bedeutet dies, dass die Rolle steht und der Corefaden gebrochen ist.In a preferred embodiment, a role is assigned to the core thread, which rotates with the core thread. The rotation of this roller is observed. In one simple embodiment, this can be done optically by For example, a corresponding photo sensor as a receiver reflected light from Parts of the wheel, for example, spokes, webs or the hub recognizes. In In this case, a transmitter is assigned to the photosensor, which emits light, which is reflected. If this light reaches the receiver in a pulsating manner, this means that the reel is rotating, i.e. no thread break has occurred. But the receiver gives a continuous signal to a monitoring unit, this means that the role is and the core thread is broken.

Damit bereits erkannt wird, dass ein Fadenbruch stattgefunden hat, obwohl eine sehr leichtgängige Rolle immer noch dreht, kann in der Steuerung auch ein Grenzwert eingegeben sein, so dass bei Unterschreitung eines bestimmten Pulsrythmus bereits ein Alarmsignal abgegeben wird. So that it is already recognized that a thread break has taken place, although a very smooth-running roller still rotates, can also be in the control of a limit be entered so that when falling below a certain pulse rhythm already an alarm signal is emitted.

Bevorzugt befindet sich die Rolle an einem Schwenkarm, in dem auch die gesamte Prüfeinrichtung für die Drehung der Rolle beinhaltet ist. Dies gilt vor allem für die oben erwähnte Lichtquelle und den Empfänger, wobei, wie ebenfalls oben erwähnt, auch andere Prüfeinrichtungen Anwendung finden können.Preferably, the roller is located on a pivot arm, in which the entire Testing device for the rotation of the roller is included. This is especially true for the above mentioned light source and the receiver, wherein, as also mentioned above, also other testing equipment can be used.

Bevorzugt befindet sich am Schwenkarm selbst noch ein Schalter, mit dem die Prüfeinrichtung ausgeschaltet werden kann, wenn sie im Augenblick nicht mehr benötigt wird. Preferably, there is still a switch on the swivel arm, with which the Checking device can be turned off when it is no longer needed at the moment becomes.

FIGURENBESCHREIBUNGDESCRIPTION OF THE FIGURES

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt in

Figur 1
eine schematische Seitenansicht eines Streckwerksbereiches mit Corefaden, Zuführung und dessen erfindungsgemässer Überwachungseinrichtung sowie einer Spindelreihe;
Figur 2
eine vergrössert dargestellte Explosionsdarstellung der Überwachungseinrichtung für das Corefaden gemäss Figur 1.
Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing; this shows in
FIG. 1
a schematic side view of a drafting area with Corefaden, feed and its inventive monitoring device and a spindle row;
FIG. 2
an enlarged exploded view of the monitoring device for the core thread according to Figure 1.

In Figur 1 wird eine Faserlunte 1 durch ein Streckwerk 2 geführt und dort in bekannter Weise verstreckt bzw. verfeinert. Das Streckwerk 2 besteht im wesentlichen aus bekannten Oberwalzen 3.1 bis 3.3 und Unterwalzen 4.1 bis 4.3, wobei Oberwalze 3.2 und Unterwalze 4.2 noch mit ebenfalls bekannten Riemchen 5.1 und 5.2 zusammenwirken.In Figure 1, a roving 1 is passed through a drafting 2 and there in a known Manner stretched or refined. The drafting 2 consists essentially of known upper rollers 3.1 to 3.3 and lower rollers 4.1 to 4.3, wherein upper roller 3.2 and lower roller 4.2 still with also known 5.1 and 5.2 straps interact.

Vor der Oberwalze 3.3 und der Unterwalze 4.3 wird der Faserlunte 1 ein Corefaden 6 zugeführt, welcher von einem Corefadenspeicher 7 kommt.Before the upper roll 3.3 and the lower roll 4.3 of the roving 1 is a Corefaden. 6 supplied, which comes from a Corefadenspeicher 7.

Der Corefaden wird, wie beispielsweise in der DE 198 15 054 C1 beschrieben, mit der Faserlunte 1 vereinigt. Beide verlassen als Core-Garn das Streckwerk 2 in Richtung Garnhülse 9. Vor dem Auflaufen auf die Garnhülse 9 durchquert das Core-Garn 8 noch einen Fadenführer (Sauschwänzle) 10 und einen Ringläufer 11.The Corefaden, as described for example in DE 198 15 054 C1, with the Filled roving 1. Both leave as a core yarn the drafting 2 in the direction Garnhülse 9. Before running onto the yarn tube 9, the core yarn 8 still passes a yarn guide (Sauschwänzle) 10 and a ring traveler 11th

Zwischen Streckwerk 2 und Corefadenspeicher 7 ist dem Corefaden 6 eine Überwachungseinrichtung 12 zugeordnet. Diese besitzt einen gehäusefesten Tragarm 13, der über ein Gelenk 14 mit einem Schwenkarm 15 verbunden ist. Am freien Ende des Schwenkarms 15 sitzt eine Rolle 16, die teilweise von dem Corefaden 6 umschlungen und von diesem angetrieben wird. Between drafting 2 and Corefadenspeicher 7 is the core thread 6 a Monitoring device 12 assigned. This has a housing-fixed arm 13, which is connected via a hinge 14 with a pivot arm 15. At the free end of the pivot arm 15 is seated a roller 16, partially from the core thread. 6 is entwined and driven by this.

Teile des Schwenkarmes 15 sind in Figur 2 dargestellt. Einends weist der Schwenkarm 15 eine Gelenkhülse 17 auf, die Teil des Gelenkes 14 mit dem Tragarm 13 darstellt.Parts of the pivot arm 15 are shown in FIG. At one point, the swivel arm 15 a joint sleeve 17, which is part of the joint 14 with the support arm 13.

Andernends ist auf ein Schwenkarmgehäuse 18 ein Prints 19 aufgesetzt, auf dem eine nicht in den Einzelheiten gezeigte Elektronik zur Steuerung der Überwachung des Corefadens 6 angeordnet ist. Dazu gehört auch ein Schalter 20, mit dem die Elektronik, beispielsweise bei einem Verschwenken des Schwenkarmes 15 ausgeschaltet werden kann.At the other end, a print 19 is mounted on a Schwenkarmgehäuse 18, on which a not shown in detail electronics for controlling the monitoring of Corefadens 6 is arranged. This also includes a switch 20, with which the electronics, be turned off, for example, in a pivoting of the pivot arm 15 can.

Zur Elektronik gehört auch ein Sender 21 und ein daneben angeordneter, nicht gezeigter Empfänger für beispielsweise ein optisches Signal. Sender 21 und Empfänger werden in entsprechende Aufnahmen 22 und 23 im Schwenkarmgehäuse 18 eingesetzt und können Speichen 24 der Rolle 16 betrachten. Die Rolle 16 besitzt noch eine Laufrille 25 für den Corefaden 6.The electronics also includes a transmitter 21 and a next arranged, not shown receiver for example, an optical signal. Transmitter 21 and receiver are inserted into corresponding receptacles 22 and 23 in the Schwenkarmgehäuse 18 and can look at spokes 16 of the role 16. The role 16 still has one Running groove 25 for the core thread 6.

Die Funktionsweise der vorliegenden Erfindung ist folgende:The operation of the present invention is as follows:

Der Corefaden 6 wird vom Corefadenspeicher 7 abgezogen und der Faserlunte 1 zugeführt. Vor der Vereinigung mit der Faserlunte 1 umläuft der Corefaden 6 die Rolle 16. Dabei dreht der Corefaden 6 die Rolle 16, wobei die Drehung beobachtet wird. Hierzu sendet der Sender 21 ein Licht aus, welches von den Speichen 24 zum Empfänger reflektiert wird. Ist das empfangene Licht pulsierend, so liegt kein Fadenbruch vor. Ist das empfangene Licht dagegen stetig, liegt ein Fadenbruch vor, da entweder dauernd Licht von einer Speiche 24 oder gar kein Licht reflektiert wird.The core thread 6 is subtracted from the Corefadenspeicher 7 and the roving. 1 fed. Before the union with the roving 1 of the core thread 6 rotates the role 16. In this case, the core thread 6 rotates the roller 16, wherein the rotation is observed. For this purpose, the transmitter 21 emits a light, which from the spokes 24 for Receiver is reflected. If the received light is pulsating, then there is no Thread break before. On the other hand, if the received light is steady, there is a thread break since either constantly light from a spoke 24 or no light is reflected.

Wird der Schwenkarm 15 zur Inspektion oder zur Neuorientierung eines Corefadens 6 angehoben, so wird die Elektronik durch Betätigung des Schalters 20 ausgeschaltet. If the pivot arm 15 for inspection or reorientation of a Corefadens. 6 raised, the electronics is turned off by operation of the switch 20.

PositionszahlenlistePosition Number List

11 Faserlunteroving 3434 6767 22 Streckwerkdrafting system 3535 6868 33 Oberwalzentop rollers 3636 6969 44 Unterwalzenbottom rollers 3737 7070 55 RiemchenStrappy 3838 7171 66 CorefadenCore thread 3939 7272 77 CorefadenspeicherCore yarn storage 4040 7373 88th Core-GarnCore yarn 4141 7474 99 Garnhülseyarn tube 4242 7575 1010 Fadenführerthread guides 4343 7676 1111 Ringläuferring rotor 4444 7777 1212 Überwachungseinricht ungMonitoring device 4545 7878 1313 TragarmBeam 4646 7979 1414 Gelenkjoint 4747 1515 Schwenkarmswivel arm 4848 1616 Rollerole 4949 1717 Gelenkhülsejoint sleeve 5050 1818 Schwenkarmgehäuseswivel arm 5151 1919 PrintPrint 5252 2020 Schalterswitch 5353 2121 Sendertransmitter 5454 2222 Aufnahmeadmission 5555 2323 Aufnahmeadmission 5656 2424 Speichespoke 5757 2525 Laufrillegroove 5858 2626 5959 2727 6060 2828 61 61 2929 6262 3030 6363 3131 6464 3232 6565 3333 6666

Claims (8)

Verfahren zum Herstellen von Core-Garn (8), wobei ein Corefaden (6) einer Faserlunte (1) zugeführt wird, bevor die Faserlunte (1) durch Drehung verfestigt wird,
dadurch gekennzeichnet, dass der Corefaden (6) vor der Vereinigung mit der Faserlunte (1), insbesondere auf Bruch überwacht wird.Method for producing core yarn (8), wherein a core thread (6) is fed to a roving (1) before the roving (1) is solidified by rotation,
characterized in that the core thread (6) is monitored prior to the union with the roving (1), in particular for breakage. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Überwachung mechanisch, optisch, kapazitiv oder induktiv erfolgt.A method according to claim 1, characterized in that the monitoring takes place mechanically, optically, capacitively or inductively. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass dem Corefaden (6) eine Rolle (16) zugeordnet ist, welche mit dem Corefaden (6) dreht.Apparatus for carrying out the method according to claim 1 or 2, characterized in that the core thread (6) is associated with a roller (16) which rotates with the core thread (6). Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Rolle (16) an einem Schwenkarm (15) angeordnet ist.Apparatus according to claim 3, characterized in that the roller (16) on a pivot arm (15) is arranged. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass zumindest ein Teil des Schwenkarmes (15) eine Prüfeinrichtung für die Drehung der Rolle (16) aufnimmt.Apparatus according to claim 2, characterized in that at least a part of the pivot arm (15) receives a test device for the rotation of the roller (16). Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass einer Lichtquelle (21) in dem Schwenkarm (15) ein Empfänger zugeordnet ist.Apparatus according to claim 5, characterized in that a light source (21) in the pivot arm (15) is associated with a receiver. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Empfänger für von Speichen (24) od. dgl. der Rolle (16) reflektiertes Licht neben der Lichtquelle (21) angeordnet ist.Device according to claim 6, characterized in that the receiver is arranged next to the light source (21) for light reflected from spokes (24) or the like of the roller (16). Vorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass am Schwenkarm (15) ein Schalter (20) vorgesehen ist.Device according to one of claims 4 to 7, characterized in that the swivel arm (15) has a switch (20) is provided.
EP20050002084 2004-02-04 2005-02-02 Method and device for monitoring the core element during production of core-garn Not-in-force EP1561845B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004005635 2004-02-04
DE200410005635 DE102004005635A1 (en) 2004-02-04 2004-02-04 Process for making core yarn

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EP1561845A2 true EP1561845A2 (en) 2005-08-10
EP1561845A3 EP1561845A3 (en) 2006-12-20
EP1561845B1 EP1561845B1 (en) 2013-04-03

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CN (1) CN1651623B (en)
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EP3178975A1 (en) 2015-11-11 2017-06-14 Maschinenfabrik Rieter Ag Method for producing elastic core yarn with a ring spinning machine

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JP4367647B2 (en) * 2005-05-16 2009-11-18 村田機械株式会社 Core yarn detection method and apparatus in core yarn spinning
CH699218A2 (en) * 2008-07-17 2010-01-29 Amsler Tex Ag Apparatus and method for monitoring for the production of core yarn.
CN102534896B (en) * 2012-01-13 2014-06-04 顾金华 Yarn twisting broken end detecting method for spinning machine

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EP3178975A1 (en) 2015-11-11 2017-06-14 Maschinenfabrik Rieter Ag Method for producing elastic core yarn with a ring spinning machine

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EP1561845A3 (en) 2006-12-20
CN1651623B (en) 2012-03-21
CN1651623A (en) 2005-08-10
EP1561845B1 (en) 2013-04-03
DE102004005635A1 (en) 2005-08-25

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