EP1006224B2 - Method and device for manufacturing condensed yarn - Google Patents

Method and device for manufacturing condensed yarn Download PDF

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Publication number
EP1006224B2
EP1006224B2 EP99121016A EP99121016A EP1006224B2 EP 1006224 B2 EP1006224 B2 EP 1006224B2 EP 99121016 A EP99121016 A EP 99121016A EP 99121016 A EP99121016 A EP 99121016A EP 1006224 B2 EP1006224 B2 EP 1006224B2
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EP
European Patent Office
Prior art keywords
suction
air flow
air
monitored
condensing
Prior art date
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EP99121016A
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German (de)
French (fr)
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EP1006224A3 (en
EP1006224B1 (en
EP1006224A2 (en
Inventor
Andreas Dr. Olbrich
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Oerlikon Textile GmbH and Co KG
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Saurer GmbH and Co KG
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    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides

Definitions

  • the invention relates to a method and an apparatus for producing compressed Yarn in which after warping a roving this compressed by means of suction air flow and then is twisted.
  • the task is based, a method or a device to create, with which the device on the Presence of suction air flow is monitored, to ensure the yarn quality and full effectiveness the device for producing compressed Maintain yarn.
  • This object is achieved according to the invention solved that - directly or indirectly - the suction air flow in the suction-side discharge of a compression device monitored at least one suction point and in case of overriding deviation from one Setpoint is issued a message that an error and / or Shutdown signal triggers.
  • This can be done on everyone single suction point or measured at one point be at which the suction-side derivatives of two or more suction points already summarized are.
  • the air flow can over that with him in functional Related negative pressure or be measured directly.
  • When measuring the pressure can be the total pressure, the static pressure or the Dynamic pressure to be monitored.
  • the monitoring takes place in the flow technology usual measuring methods for measuring of pressures or flow velocities like Pressure probes, anemometers or similar probes.
  • a response of the measuring device can at Exceeding and / or falling below a fixed, adjustable Threshold or overdue deviation from at least one other suction point instantaneous prevailing value.
  • the device for producing compressed Yarn containing at least one drafting system for warping the roving, with at least one Suction device for compacting the roving by means of Saugluftströmung and with at least one twisting device equipped, can be designed so that at least one of the suction devices with a device provided for detecting the suction air flow which is via a comparison unit with an evaluation unit communicates.
  • This device for Detecting the suction air flow can be in the suction line be arranged the respective suction device.
  • the Evaluation unit can alarm and / or Abstell issued or designed as a display device.
  • FIG. 1 The schematically illustrated in Fig. 1 in side view Apparatus for producing compressed Yarn made of a roving 1 has e.g. a first pair of rollers 2 and a downstream second pair of rollers 3 on. Between both pairs of rollers 2 and 3 can the roving 1 experience a delay.
  • the Roller pair 3 can hereby be equipped with straps 4 and 5 be, wherein the Oberriemchen 4 by a not shown strapping cage cocked and the Unterriemchen 5 is guided over a support rail 6 can be. This rail 6 can simultaneously to Support the Oberriemchens 4 serve.
  • the second pair of rollers 3 is an output roller pair 8 downstream.
  • a fiber bundling zone 20 closes in which the emerging from the output roller pair 8 finished warped roving 1 across the transport device is summarized.
  • the fiber bundling zone 20 has a Suction device 12 with perforated strap 15 on, which around the top roller 10 'of a delivery roller pair 10 is guided.
  • the perforation of this strap 15 consists of a number in the direction of the roving 1 consecutive small openings, e.g. next to and / or behind each other.
  • the perforated strap 15 is around a Riemchenkafig 16 out, which via a suction line 22 with a suction unit, not shown communicates. With the help of the suction device 12 Thus, a suction air flow S is achieved, which for Compaction of the roving 1 is used.
  • a twisting device not shown twisted, for example by a ring spinning device.
  • the suction device 12 is erfmdungswash 2 and 3 with a device 25 and 25 'for Detecting the Saugluftströmung S provided.
  • This device 25 is a comparison unit 30 with a Evaluation unit 40 in conjunction.
  • the Device 25 for detecting the suction air flow S 2 a measuring tube 27 have, which directly leads into the housing of the Riemchen Wegfigs 16, the part the suction device 12 is.
  • a threshold falls below a message is issued, which is a fault and / or stop signal triggers.
  • This threshold can be set be, for example in the area of the comparison unit 30, to make an appropriate adjustment to the respective Yarn quality of the roving 1 make.
  • the evaluation unit shown only schematically 40 may as alarm and / or Abstell responded or as Display device to be formed.
  • Sensors can be the total pressure, the static Pressure and / or the dynamic pressure or the flow velocity be measured in the air.
  • the embodiment of a device for Making compressed yarns according to Fig. 4 differs from that of Fig. 1 in that at the second embodiment as a suction device 12 ' a perforated suction roll is used, which rotates.
  • This rotating, perforated suction roll works with two counter-rollers 13 and 14 together to the warped fiber rove 1 by means of suction air flow to compacted.
  • a first pair of rollers 2, a second pair of rollers 3 and a pair of output rollers 8 provided.
  • FIG. 5 Analogous to the embodiments of FIG. 2 and Fig. 3 is in the illustrations of Figs. 5 and 6 the possibility that a measuring tube 27 directly with the Suction element within the perforated suction roll, which serves as a suction device 12, is connected (Fig. 5).
  • Fig. 6 the flow velocity of Air with a, not shown, in the flow measurement common sensor, z. B. hot wire anemometer, measured.
  • the suction air flow is monitored, being below a threshold value via the comparison unit 30 and the evaluation unit 40 a message is issued, which is a fault and / or stop signal triggers.
  • the threshold adjustable, whereby at each suction point the total pressure, the static pressure or the back pressure measured becomes.
  • the evaluation unit 40 can alarm and / or Abstell recommended or as a display device be educated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren sowie eine Vorrichtung zum Herstellen von verdichtetem Garn, bei welchem nach Verziehen einer Faserlunte diese mittels Saugluftströmung verdichtet und anschließend verdreht wird.The invention relates to a method and an apparatus for producing compressed Yarn in which after warping a roving this compressed by means of suction air flow and then is twisted.

Beim Herstellen von verdichtetem Garn erfolgt das Verdichten durch Saugluftströmung (DE 39 27 936 C2). Mit der Saugluftströmung werden bei diesen bekannten Verfahren Spinnfasern und in seltenen Fällen auch Ansammlungen von Spinnfasern abgesaugt. Dabei kann der Nachteil entstehen, dass die die Saugluft führenden Elemente ganz oder teilweise verstopfen. In diesem Fall lässt die Saugwirkung nach oder sie kommt sogar ganz zum Erliegen, wodurch die Garnqualität negativ beeinflusst wird.When producing compressed yarn takes place the compression by suction air flow (DE 39 27 936 C2). With the suction air flow are known in these Procedure staple fibers and in rare cases also aspirated accumulations of staple fibers. there The disadvantage can arise that the suction air block all or part of the leading elements. In In this case, the suction decreases or comes even to a halt, which makes the yarn quality negative being affected.

Entsprechend liegt dervorliegenden Erfindung die Aufgabe zugrunde, ein Verfahren bzw. eine Einrichtung zu schaffen, mit welcher die Vorrichtung auf das Vorhandensein der Saugluftströmung überwacht wird, um die Garnqualität sicherzustellen und die volle Effektivität der Vorrichtung zum Herstellen von verdichtetem Garn beizubehalten.Accordingly, the present invention the task is based, a method or a device to create, with which the device on the Presence of suction air flow is monitored, to ensure the yarn quality and full effectiveness the device for producing compressed Maintain yarn.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass - direkt oder indirekt - die Saugluftströmung in der saugseitigen Ableitung einer Verdichtungsvorrichtung an mindestens einer Saugstelle überwacht und bei überzufälliger Abweichung von einem Sollwert eine Meldung abgegeben wird, die ein Fehlerund/oder Abstellsignal auslöst. Hierbei kann an jeder einzelnen Saugstelle oder aber an einer Stelle gemessen werden, an der die saugseitigen Ableitungen zweier oder mehrerer Saugstellen bereits zusammengefasst sind. Der Luftdurchsatz kann über den mit ihm in funktionalem Zusammenhang stehenden Unterdruck oder direkt gemessen werden. Beim Messen des Druckes kann der Gesamtdruck, der statische Druck oder der Staudruck überwacht werden.This object is achieved according to the invention solved that - directly or indirectly - the suction air flow in the suction-side discharge of a compression device monitored at least one suction point and in case of overriding deviation from one Setpoint is issued a message that an error and / or Shutdown signal triggers. This can be done on everyone single suction point or measured at one point be at which the suction-side derivatives of two or more suction points already summarized are. The air flow can over that with him in functional Related negative pressure or be measured directly. When measuring the pressure can be the total pressure, the static pressure or the Dynamic pressure to be monitored.

Die Überwachung erfolgt mit in der Strömungstechnik üblichen Messverfahren zum Messen von Drücken oder Strömungsgeschwindigkeiten wie Drucksonden, Anemometern oder ähnlichen Messfühlern. Ein Ansprechen der Messvorrichtung kann bei Über- und/oder Unterschreiten eines festen, einstellbaren Schwellenwertes oder beim überzufälligen Abweichen von dem an mindestens einer anderen Saugstelle augenblicklich herrschenden Wert folgen.The monitoring takes place in the flow technology usual measuring methods for measuring of pressures or flow velocities like Pressure probes, anemometers or similar probes. A response of the measuring device can at Exceeding and / or falling below a fixed, adjustable Threshold or overdue deviation from at least one other suction point instantaneous prevailing value.

Außer den geschilderten Verstopfungen sind auch andere Fehlfunktionen bei der Sauglufteinrichtung und deren Leitungen möglich, z. B. undichte Leitungen, nachlassende Leistung des Sauggebläses usw. Es kann daher aus Kostengründen sinnvoll sein, den Unterdruck nur an dem Saugelement zu messen, welches am weitesten vom Sauggebläse entfernt ist.Except the described blockages are also other malfunctions in the suction air device and their lines possible, for. Leaky pipes, decreasing power of suction fan, etc. It can therefore be useful for cost reasons, the negative pressure only to measure on the suction element, which farthest from the suction fan.

Die Vorrichtung zum Herstellen von verdichtetem Garn, welche mit mindestens einem Streckwerk zum Verziehen der Faserlunte, mit mindestens einer Saugvorrichtung zum Verdichten der Faserlunte mittels Saugluftströmung und mit mindestens einer Verdrehvorrichtung ausgestattet ist, kann so gestaltet sein, dass mindestens eine der Saugvorrichtungen mit einer Einrichtung zum Erfassen-der Saugluftströmung versehen ist, welche über eine Vergleichseinheit mit einer Auswerteeinheit in Verbindung steht. Diese Einrichtung zum Erfassen der Saugluftströmung kann in der Saugleitung der jeweiligen Saugvorrichtung angeordnet sein. Die Auswerteeinheit kann als Alarm- und/oder Abstelleinrichtung oder als Anzeigevorrichtung gestaltet sein.The device for producing compressed Yarn containing at least one drafting system for warping the roving, with at least one Suction device for compacting the roving by means of Saugluftströmung and with at least one twisting device equipped, can be designed so that at least one of the suction devices with a device provided for detecting the suction air flow which is via a comparison unit with an evaluation unit communicates. This device for Detecting the suction air flow can be in the suction line be arranged the respective suction device. The Evaluation unit can alarm and / or Abstelleinrichtung or designed as a display device.

Die Erfindung wird nachfolgend anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher beschrieben. In der Zeichnung zeigen:

Fig. 1
eine schematische Seitenansicht einer Vorrichtung zum Herstellen von verdichtetem Garn mit feststehendem Saugeelement;
Fig. 2 und 3
zwei Ausführungsmöglichkeiten der erfindungsgemäßen Einrichtung zum Erfassen der Saugluftströmung für die Ausführungsform nach Fig. 1;
Fig. 4
eine andere Ausführungsmöglichkeit einer Vorrichtung zum Herstellen von verdichtetem Garn mit perforierter Saugwalze, in schematischer Seitenansicht;
Fig. 5 und 6
zwei verschiedene Ausführungsmöglichkeiten der Ausgestaltung der Einrichtung zum Erfassen der Saugluftströmung für die Ausführungsform nach Fig. 4.
The invention will be described in more detail with reference to embodiments shown in the drawing. In the drawing show:
Fig. 1
a schematic side view of an apparatus for producing compressed yarn with a fixed suction element;
FIGS. 2 and 3
two embodiments of the inventive device for detecting the Saugluftströmung for the embodiment of FIG. 1;
Fig. 4
another embodiment of an apparatus for producing compressed yarn with perforated suction roller, in a schematic side view;
FIGS. 5 and 6
two different embodiments of the embodiment of the device for detecting the Saugluftströmung for the embodiment of FIG .. 4

Die in Fig. 1 in Seitenansicht schematisch dargestellte Vorrichtung zum Herstellen von verdichtetem Garn aus einer Faserlunte 1 weist z.B. ein erstes Walzenpaar 2 und ein nachgeschaltetes zweites Walzenpaar 3 auf. Zwischen beiden Walzenpaaren 2 und 3 kann die Faserlunte 1 einen Vorverzug erfahren. Das Walzenpaar 3 kann hierbei mit Riemchen 4 und 5 ausgestattet sein, wobei das Oberriemchen 4 durch einen nicht näher dargestellten Riemchenkäfig gespannt und das Unterriemchen 5 über eine Abstützschiene 6 geführt sein kann. Diese Schiene 6 kann gleichzeitig zur Abstützung des Oberriemchens 4 dienen.The schematically illustrated in Fig. 1 in side view Apparatus for producing compressed Yarn made of a roving 1 has e.g. a first pair of rollers 2 and a downstream second pair of rollers 3 on. Between both pairs of rollers 2 and 3 can the roving 1 experience a delay. The Roller pair 3 can hereby be equipped with straps 4 and 5 be, wherein the Oberriemchen 4 by a not shown strapping cage cocked and the Unterriemchen 5 is guided over a support rail 6 can be. This rail 6 can simultaneously to Support the Oberriemchens 4 serve.

Dem zweiten Walzenpaar 3 ist ein Ausgangswalzenpaar 8 nachgeschaltet. An dieses Ausgangswalzenpaar 8 schließt sich eine Faserbündelungszone 20 an, in welcher die aus dem Ausgangswalzenpaar 8 austretende fertig verzogene Faserlunte 1 quer zur Transportvorrichtung zusammengefasst wird.The second pair of rollers 3 is an output roller pair 8 downstream. To this pair of outfeed rollers 8, a fiber bundling zone 20 closes in which the emerging from the output roller pair 8 finished warped roving 1 across the transport device is summarized.

Die Faserbündelungszone 20 weist eine Saugvorrichtung 12 mit perforiertem Riemchen 15 auf, welches um die Oberwalze 10' eines Lieferwalzenpaares 10 geführt ist. Die Perforierung dieses Riemchens 15 besteht aus einer Anzahl in Laufrichtung der Faserlunte 1 hintereinander liegender kleinen Öffnungen, z.B. neben- und/oder hintereinander.The fiber bundling zone 20 has a Suction device 12 with perforated strap 15 on, which around the top roller 10 'of a delivery roller pair 10 is guided. The perforation of this strap 15 consists of a number in the direction of the roving 1 consecutive small openings, e.g. next to and / or behind each other.

Das perforierte Riemchen 15 ist um einen Riemchenkäfig 16 geführt, welcher über eine Saugleitung 22 mit einer nicht näher dargestellten Saugeinheit in Verbindung steht. Mit Hilfe der Saugvorrichtung 12 wird damit eine Saugluftströmung S erzielt, welcher zur Verdichtung der Faserlunte 1 dient. Nach Verlassen des Lieferwalzenpaares 10 wird die so bearbeitete Faserlunte 1 durch eine nicht näher dargestellte Verdreheinrichtung verdreht, beispielsweise durch eine Ringspinneinrichtung.The perforated strap 15 is around a Riemchenkäfig 16 out, which via a suction line 22 with a suction unit, not shown communicates. With the help of the suction device 12 Thus, a suction air flow S is achieved, which for Compaction of the roving 1 is used. After leaving the Delivery roller pair 10 is the so-treated roving 1 by a twisting device, not shown twisted, for example by a ring spinning device.

Die Saugvorrichtung 12 ist erfmdungsgemäß nach Fig. 2 bzw. 3 mit einer Einrichtung 25 bzw. 25' zum Erfassen der Saugluftströmung S versehen. Diese Einrichtung 25 steht über eine Vergleichseinheit 30 mit einer Auswerteeinheit 40 in Verbindung. Hierbei kann die Vorrichtung 25 zum Erfassen der Saugluftströmung S nach Fig. 2 ein Messrohr 27 aufweisen, welches direkt in das Gehäuse des Riemchenkäfigs 16 führt, der Teil der Saugvorrichtung 12 ist.The suction device 12 is erfmdungsgemäß 2 and 3 with a device 25 and 25 'for Detecting the Saugluftströmung S provided. This device 25 is a comparison unit 30 with a Evaluation unit 40 in conjunction. Here, the Device 25 for detecting the suction air flow S 2, a measuring tube 27 have, which directly leads into the housing of the Riemchenkäfigs 16, the part the suction device 12 is.

Bei der Ausführungsform Fig. 3 wird die Strömungsgeschwindigkeit der Luft mit einem nicht dargestellten, in der Strömungstechnik gebräuchlichen Messfühler, z. B. Hitzdrahtanemometer, gemessen.In the embodiment of FIG. 3, the flow velocity the air with a not shown, common in fluid mechanics Sensor, z. B. hot wire anemometer, measured.

Mit Hilfe der Einrichtung 25 zum Erfassen der Saugluftströmung S wird dieser überwacht, wobei bei Unterschreiten eines Schwellenwertes eine Meldung abgegeben wird, welche ein Fehler- und/oder Abstellsignal auslöst. Dieser Schwellenwert kann einstellbar sein, beispielsweise im Bereich der Vergleichseinheit 30, um eine entsprechende Anpassung an die jeweilige Garnqualität der Faserlunte 1 vornehmen zu können. Die lediglich schematisch dargestellte Auswerteeinheit 40 kann als Alarm- und/oder Abstelleinrichtung oder als Anzeigevorrichtung ausgebildet sein.With the aid of the device 25 for detecting the Suction air flow S is monitored this, with at If a threshold falls below a message is issued, which is a fault and / or stop signal triggers. This threshold can be set be, for example in the area of the comparison unit 30, to make an appropriate adjustment to the respective Yarn quality of the roving 1 make. The evaluation unit shown only schematically 40 may as alarm and / or Abstelleinrichtung or as Display device to be formed.

Mit Hilfe des Messrohres 27 und nicht dargestellter Messfühler können der Gesamtdruck, der statische Druck und/oder der Staudruck oder die Strömungsgeschwindigkeit der Luft gemessen werden.With the help of the measuring tube 27 and not shown Sensors can be the total pressure, the static Pressure and / or the dynamic pressure or the flow velocity be measured in the air.

Die Ausführungsform einer Vorrichtung zum Herstellen von verdichteten Garnen nach Fig. 4 unterscheidet sich von jener nach Fig. 1 dadurch, dass bei der zweiten Ausführungsform als Saugvorrichtung 12' eine perforierte Saugwalze eingesetzt wird, welche rotiert. Diese rotierende, perforierte Saugwalze arbeitet mit zwei Gegenwalzen 13 und 14 zusammen, um die verzogene Faserlunte 1 mittels Saugluftströmung zu verdichten. Wiederum sind ein erstes Walzenpaar 2, ein zweites Walzenpaar 3 sowie ein Ausgangswalzenpaar 8 vorgesehen.The embodiment of a device for Making compressed yarns according to Fig. 4 differs from that of Fig. 1 in that at the second embodiment as a suction device 12 ' a perforated suction roll is used, which rotates. This rotating, perforated suction roll works with two counter-rollers 13 and 14 together to the warped fiber rove 1 by means of suction air flow to compacted. Again, a first pair of rollers 2, a second pair of rollers 3 and a pair of output rollers 8 provided.

Analog den Ausführungsformen nach Fig. 2 und 3 besteht bei den Darstellungen nach Fig. 5 und 6 die Möglichkeit, dass ein Messrohr 27 direkt mit dem Saugelement innerhalb der perforierten Saugwalze, welche als Saugvorrichtung 12 dient, verbunden ist (Fig. 5). Nach Fig. 6 wird die Strömungsgeschwindigkeit der Luft mit einem nicht dargestellten, in der Strömungsmesstechnik gebräuchlichen Messfühler, z. B. Hitzedrahtanemometer, gemessen.Analogous to the embodiments of FIG. 2 and Fig. 3 is in the illustrations of Figs. 5 and 6 the possibility that a measuring tube 27 directly with the Suction element within the perforated suction roll, which serves as a suction device 12, is connected (Fig. 5). According to Fig. 6, the flow velocity of Air with a, not shown, in the flow measurement common sensor, z. B. hot wire anemometer, measured.

Auch bei dieser Ausführungsform nach Fig. 4 und 5 bzw. 4 und 6 wird die Saugluftströmung überwacht, wobei bei Unterschreiten eines Schwellenwertes über die Vergleichseinheit 30 und die Auswerteeinheit 40 eine Meldung abgegeben wird, welche ein Fehler- und/oder Abstellsignal auslöst. Auch hier ist der Schwellenwert einstellbar, wobei an jeder Saugstelle der Gesamtdruck, der statische Druck oder der Staudruck gemessen wird.Also in this embodiment of FIG. 4th and 5 or 4 and 6, the suction air flow is monitored, being below a threshold value via the comparison unit 30 and the evaluation unit 40 a message is issued, which is a fault and / or stop signal triggers. Again, the threshold adjustable, whereby at each suction point the total pressure, the static pressure or the back pressure measured becomes.

Die Auswerteeinheit 40 kann als Alarm- und/oder Abstelleinrichtung oder als Anzeigevorrichtung ausgebildet sein.The evaluation unit 40 can alarm and / or Abstelleinrichtung or as a display device be educated.

Insgesamt ergibt sich durch die vorliegende Erfindung, dass auf einfache Weise die Saugluftströmung überwacht wird, um in jedem Fall die Garnqualität sicherzustellen.Overall, results from the present Invention that in a simple way the Saugluftströmung is monitored, in any case, the yarn quality sure.

Claims (8)

  1. Method for the production of condensed yam, in which, after the drawing of a fibre slubbing (1), the latter is condensed by means of a suction-air flow (S) in the area of a condensing zone and is subsequently twisted, characterized in that the suction-air flow is monitored at at least one suction point of the condensing zone, for example, via the static pressure, the dynamic pressure or the flow velocity of the air, and, in the event of the undershooting of a threshold value, a message is transmitted which triggers a fault and/or stop signal.
  2. Method according to claim 1, characterized in that the suction-air flow is monitored in the suction-side discharge line of a condensing device, and the message is transmitted in the event of an over-coincidental deviation from a desired value.
  3. Method according to claim 1 or 2, in which the suction-air flow (S) is generated at a plurality of suction points, characterized in that the air throughput of the suction-air flow (S) is monitored at each suction point.
  4. Method according to claims 1, 2 or 3, characterized in that the threshold value is adjustable.
  5. Device for the production of condensed yam, with at least one drawframe (2, 3, 8, 10) for drawing the fibre slubbing (1), with at least one suction device (12, 12') in the area of a condensing zone for condensing the fibre slubbing (1) by means of a suction-air flow (S), and with at least one twisting device, characterized in that at least one of the suction devices (12, 12') of the condensing zone is provided with a means (25) for detecting the suction-air flow (S), for example, via the static pressure, the suction pressure or the flow velocity of the air, the said means being connected via a comparison unit (30) to an evaluation unit (40) which is designed as an alarm and/or stop means or as an indicator device.
  6. Device according to claim 5, characterized in that the means (25) for detecting the suction-air flow (S) is arranged in the suction line (22) of the respective suction device (12, 12').
  7. Device according to claim 5 or 6, characterized in that the evaluation unit (40) is designed as an alarm means and/or as a stop means.
  8. Device according to claim 7, characterized in that the evaluation unit (40) is designed as an indicator device.
EP99121016A 1998-12-04 1999-10-21 Method and device for manufacturing condensed yarn Expired - Lifetime EP1006224B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19856121 1998-12-04
DE19856121A DE19856121C2 (en) 1998-12-04 1998-12-04 Method and device for the production of compacted yarn

Publications (4)

Publication Number Publication Date
EP1006224A2 EP1006224A2 (en) 2000-06-07
EP1006224A3 EP1006224A3 (en) 2000-11-15
EP1006224B1 EP1006224B1 (en) 2003-07-09
EP1006224B2 true EP1006224B2 (en) 2005-11-30

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EP99121016A Expired - Lifetime EP1006224B2 (en) 1998-12-04 1999-10-21 Method and device for manufacturing condensed yarn

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US (1) US6134872A (en)
EP (1) EP1006224B2 (en)
JP (1) JP2000170043A (en)
DE (2) DE19856121C2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19914201A1 (en) * 1999-03-29 2000-10-05 Zinser Textilmaschinen Gmbh Method and device for bundling a fiber composite warped in a drafting system of a spinning machine
DE10008610A1 (en) * 2000-02-24 2001-08-30 Zinser Textilmaschinen Gmbh Sliver drawing unit has a condensing stage with a profiled shrouding facing the suction unit in a mounting with easy adjustment and which reduces the energy for the required suction to condense the sliver
EP1134309B1 (en) * 2000-03-08 2003-12-17 Zinser Textilmaschinen GmbH Drawing frame with following condensing zone for a spinning machine
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JP2000170043A (en) 2000-06-20
EP1006224A3 (en) 2000-11-15
EP1006224B1 (en) 2003-07-09
US6134872A (en) 2000-10-24
DE19856121C2 (en) 2003-12-18
DE59906252D1 (en) 2003-08-14
DE19856121A1 (en) 2000-06-08
EP1006224A2 (en) 2000-06-07

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