EP1445359B1 - Conduit-plate adapter for an open-end spinning device - Google Patents

Conduit-plate adapter for an open-end spinning device Download PDF

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Publication number
EP1445359B1
EP1445359B1 EP04000300A EP04000300A EP1445359B1 EP 1445359 B1 EP1445359 B1 EP 1445359B1 EP 04000300 A EP04000300 A EP 04000300A EP 04000300 A EP04000300 A EP 04000300A EP 1445359 B1 EP1445359 B1 EP 1445359B1
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EP
European Patent Office
Prior art keywords
channel plate
plate adapter
clip
yarn withdrawal
withdrawal nozzle
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.)
Expired - Lifetime
Application number
EP04000300A
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German (de)
French (fr)
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EP1445359A3 (en
EP1445359A2 (en
Inventor
Heinz-Georg Wassenhoven
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Oerlikon Textile GmbH and Co KG
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Oerlikon Textile GmbH and Co KG
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Publication of EP1445359A2 publication Critical patent/EP1445359A2/en
Publication of EP1445359A3 publication Critical patent/EP1445359A3/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/40—Removing running yarn from the yarn forming region, e.g. using tubes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/38—Channels for feeding fibres to the yarn forming region

Definitions

  • the invention relates to a channel plate adapter for an open-end rotor spinning device according to the preamble of claim 1.
  • Open-end rotor spinning devices which are equipped in the region of their fiber channel plate with a replaceable channel plate adapter, are known and, for example in the DE 43 34 485 A1 described in detail.
  • a spinning rotor rotates at high speed in a vacuum-pressurized rotor housing during spinning operation.
  • the rotor housing is closed by a pivotally arranged cover, in which also the sliver disintegrating device of the spinning device is integrated. That is, on the front side of the rotor housing is a lip seal, which is arranged in an annular groove of a so-called fiber channel plate.
  • This fiber channel plate is either an integral part of the lid or is releasably fixed to the lid.
  • a channel plate adapter is interchangeably arranged, which has a part of a Faserleitkanals and in a central through-hole a yarn withdrawal nozzle.
  • the channel plate adapters are each tuned to a specific spinning rotor shape or size. In a lot change, which often also requires a spinning rotor change, therefore, the channel plate adapter is often replaced with.
  • channel plate adapter as in the DE 197 29 192 A1 are described.
  • These known channel plate adapter as seen in the installation direction, on a central extension with lateral fixing elements. By applying this approximately in the region of the central axis of the channel plate adapter arranged fixing by appropriate locking means of the channel plate adapter is fixed evenly in the recording of the fiber channel plate. That is, it is prevented that false air can enter the rotor housing.
  • Such channel plate adapter have a central through hole in which, usually interchangeable, a yarn withdrawal nozzle is arranged.
  • the DE 39 40 046 A1 describes, for example, a yarn withdrawal nozzle, which has a made of ceramic mouth funnel, which is fixed in a steel mouth support, preferably by gluing.
  • the mouth support in turn has an external thread which can be screwed into a corresponding internal thread in the region of the central through-bore of the channel plate adapter.
  • the present invention seeks to develop a cost-effective, replaceable channel plate adapter, which allows a simple and secure locking a replaceable yarn withdrawal nozzle.
  • the embodiment of a channel plate adapter according to the invention has the particular advantage that such a channel plate adapter is much cheaper to manufacture than all previously known channel plate adapter.
  • the clip closure according to the invention which is integrally formed on the plastic body of the channel plate adapter, not only ensures a reliable fixation of the thread take-off, but also ensures that the thread take-off can be easily replaced if necessary at any time.
  • a wear protection tube which is also arranged interchangeable in the through hole of the channel plate adapter.
  • the wear protection tube is on the one hand at a rear stop within the through hole and on the other hand locked by the clipped-thread take-off.
  • the wear protection tube is made of a highly wear-resistant material.
  • This highly wear-resistant material prevents the resulting thread running through the thread withdrawal nozzle from being able to work into the plastic body of the channel plate adapter.
  • Suitable highly wear-resistant materials are, for example, ceramic materials, alloyed steels, etc.
  • the yarn withdrawal nozzle is preferably made of such a highly wear-resistant material. That is, usually the thread take-off nozzle is made of a technical ceramic material.
  • FIG. 1 shows in side view an open-end rotor spinning device 1 with a vacuum-pressurized rotor housing 2, in which a spinning rotor 3 rotates at high speed.
  • the spinning rotor 3 is supported in a known manner via its rotor shaft 7 on a support disk bearing 4; while the axial positioning of the spinning rotor 3 takes place via a thrust bearing 33.
  • the drive of the spinning rotor 3 is effected, as known, by means of a machine-long tangential belt 5, which presses a pressure roller 6 against the rotor shaft 7.
  • the rotor housing 2 is connected via a vacuum line 8 to a (not shown) vacuum source.
  • the rotor housing 2 is closed on its front side 9 by a so-called fiber channel plate 10, which is part of a designed as a pivot housing 11 lid.
  • the fiber channel plate 10 is either a part of the pivot housing 11 or the fiber channel plate 10 is detachably attached to the pivot housing 11.
  • the pivot housing 11 which is pivotally mounted a pivot axis 12, further units of the open-end rotor spinning device 1, for example, a sliver disassembling device 13, installed. That is, via a, not shown here, Faserbandeinzugszylinder 14 is a template fiber tape in the Pulled opening device 13 and there disassembled by a sliver pick-up roller 15 in individual fibers.
  • the individual fibers are then conveyed via a Faserleitkanal 16 to the spinning rotor 3.
  • the sliver pick-up roller 15 is preferably driven by a tangential belt 17, while the drive of the sliver feed cylinder 14 via a machine-length drive shaft or an electric motor single drive 18 takes place.
  • a pneumatically acted upon dirt chamber 19 can be arranged for the incurred in the dissolution of the sliver dirt.
  • the dirt chamber 19 is connected in this case via a corresponding suction line to a central waste disposal device of the open-end rotor spinning machine.
  • the fiber channel plate 10 inserted into the swivel housing 11 has an annular recess 20 for positioning a lip sealing element 21 and a receptacle 22, which is open in the direction of the rotor housing 2, for an exchangeable channel plate adapter 24.
  • the lateral contact surface 23 of the receptacle 22 is preferably frusto-conical.
  • the channel plate adapter 24 is made of a plastic and has, as in particular from the Figures 2 and 3 can be seen, the mouth portion 34 of the fiber guide 16 and a central through hole 26 for a spinning rotor 3 opposite thread take-off nozzle 27 on.
  • the fiber guide channel 16 is formed by a wear-resistant insert 42, which is cast in the manufacture of the made of plastic channel plate adapter 24 firmly.
  • a wear protection tube 36 is arranged in the central through-bore 26 next to the yarn withdrawal nozzle 27, to which a thread withdrawal tube 28 is connected.
  • the thread withdrawal tube 28 thereby encompasses a bore in the extension 29 of an insert body 25 which has at least one fixing projection 31 at the end.
  • the fixing lug 31 extends substantially orthogonal to the longitudinal axis 30 of the extension 29 and is engaged behind by a locking means 32.
  • This type of attachment of a channel plate adapter is known and, for example in the DE 197 29 192 A1 described in detail.
  • the channel plate adapter 24 has in the region of its central through-bore 26 integrally formed on the plastic body of the channel plate adapter 24 clip closure 37.
  • This clip closure 37 for locking the Fadenabzugsdüse 27 has centering members 38 and clip members 39.
  • the centering members 38 are formed as circular segments 38A, 38B, 38C, etc., whose common inner diameter D inside is selected so that it is only slightly above the maximum Diameter D max of the edge contour 40 of the yarn draw-off nozzle 27 is located.
  • the clip elements 39 which are respectively arranged between the centering members 38, have a conical contact surface 41 on their inner side facing the yarn withdrawal nozzle 37, which corresponds to a correspondingly conical contact surface on the outside of the edge contour 40 of the yarn withdrawal nozzle 27. That is, the clip elements 39 partially overlap the outside of the edge contour 40 of the thread withdrawal nozzle 27.

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

Description

Die Erfindung betrifft einen Kanalplattenadapter für eine Offenend-Rotorspinnvorrichtung gemäß dem Oberbegriff des Anspruches 1.The invention relates to a channel plate adapter for an open-end rotor spinning device according to the preamble of claim 1.

Offenend-Rotorspinnvorrichtungen, die im Bereich ihrer Faserkanalplatte mit einem auswechselbaren Kanalplattenadapter ausgestattet sind, sind bekannt und beispielsweise in der DE 43 34 485 A1 ausführlich beschrieben.Open-end rotor spinning devices, which are equipped in the region of their fiber channel plate with a replaceable channel plate adapter, are known and, for example in the DE 43 34 485 A1 described in detail.

Bei derartigen Offenend-Rotorspinnvorrichtungen läuft während des Spinnbetriebes ein Spinnrotor mit hoher Drehzahl in einem unterdruckbeaufschlagten Rotorgehäuses um.
Das Rotorgehäuse ist dabei durch einen schwenkbar angeordneten Deckel verschlossen, in den außerdem die Faserbandauflöseeinrichtung der Spinnvorrichtung integriert ist.
Das heißt, an der Frontseite des Rotorgehäuses liegt eine Lippendichtung an, die in einer Ringnut einer sogenannten Faserkanalplatte angeordnet ist.
Diese Faserkanalplatte ist dabei entweder ein integraler Bestandteil des Deckels oder ist lösbar am Deckel festgelegt. In einer zentrischen Aufnahme der Faserkanalplatte ist außerdem auswechselbar ein Kanalplattenadapter angeordnet, der einen Teil eines Faserleitkanals sowie in einer zentrischen Durchgangsbohrung eine Fadenabzugsdüse aufweist.In such open-end rotor spinning devices, a spinning rotor rotates at high speed in a vacuum-pressurized rotor housing during spinning operation.
The rotor housing is closed by a pivotally arranged cover, in which also the sliver disintegrating device of the spinning device is integrated.
That is, on the front side of the rotor housing is a lip seal, which is arranged in an annular groove of a so-called fiber channel plate.
This fiber channel plate is either an integral part of the lid or is releasably fixed to the lid. In a centric recording of the fiber channel plate also a channel plate adapter is interchangeably arranged, which has a part of a Faserleitkanals and in a central through-hole a yarn withdrawal nozzle.

Um eine optimale Fasereinspeisung sowie einen guten Fadenabzug zu gewährleisten, sind die Kanalplattenadapter jeweils auf eine bestimmte Spinnrotorform bzw. -größe abgestimmt. Bei einem Partiewechsel, der oft auch einen Spinnrotorwechsel bedingt, wird deshalb häufig auch der Kanalplattenadapter mit ausgewechselt.In order to ensure optimum fiber feed and a good thread take-off, the channel plate adapters are each tuned to a specific spinning rotor shape or size. In a lot change, which often also requires a spinning rotor change, therefore, the channel plate adapter is often replaced with.

Im Zusammenhang mit der Befestigung derartiger, auswechselbarer Kanalplattenadapter sind verschiedene Ausführungsformen bekannt.
In der DE 43 34 485 A1 ist beispielsweise ein Kanalplattenadapter beschrieben, der mittels die Rückwand der Aufnahme durchfassender Schrauben luftdicht in der Aufnahme der Faserkanalplatte festgelegt werden kann.
Eine solche Befestigungsart erfordert allerdings den Einsatz eines Werkzeuges.Various embodiments are known in connection with the attachment of such replaceable channel plate adapter.
In the DE 43 34 485 A1 For example, a channel plate adapter is described, which can be airtightly fixed in the receptacle of the fiber channel plate by means of the rear wall of receiving comprehensive screws.
However, such a method of attachment requires the use of a tool.

Ohne Werkzeuge auswechselbar sind dagegen Kanalplattenadapter, wie sie in der DE 197 29 192 A1 beschrieben sind.
Diese bekannten Kanalplattenadapter weisen, in Einbaurichtung gesehen, einen zentralen Fortsatz mit seitlichen Fixierelementen auf.
Durch Beaufschlagung dieser etwa im Bereich der Mittelachse des Kanalplattenadapters angeordneten Fixierelemente durch entsprechende Arretierungsmittel wird der Kanalplattenadapter gleichmäßig in der Aufnahme der Faserkanalplatte fixiert.
Das heißt, es wird verhindert, daß Falschluft in das Rotorgehäuse eintreten kann.Can be replaced without tools, however, channel plate adapter, as in the DE 197 29 192 A1 are described.
These known channel plate adapter, as seen in the installation direction, on a central extension with lateral fixing elements.
By applying this approximately in the region of the central axis of the channel plate adapter arranged fixing by appropriate locking means of the channel plate adapter is fixed evenly in the recording of the fiber channel plate.
That is, it is prevented that false air can enter the rotor housing.

Derartige Kanalplattenadapter weisen eine zentrale Durchgangsbohrung auf, in der, in der Regel auswechselbar, eine Fadenabzugsdüse angeordnet ist.Such channel plate adapter have a central through hole in which, usually interchangeable, a yarn withdrawal nozzle is arranged.

Auch bezüglich der lösbaren Befestigung derartiger Fadenabzugsdüsen gibt es verschiedene Ausführungsformen.Also with regard to the releasable attachment of such yarn withdrawal nozzles, there are various embodiments.

Die DE 39 40 046 A1 beschreibt beispielsweise eine Fadenabzugsdüse, die einen aus Keramik gefertigten Mündungstrichter aufweist, der in einem stählernen Mündungsträger, vorzugsweise durch Kleben, festgelegt ist.
Der Mündungsträger weist seinerseits ein Außengewinde auf, das in ein entsprechendes Innengewinde im Bereich der zentralen Durchgangsbohrung des Kanalplattenadapters einschraubbar ist.The DE 39 40 046 A1 describes, for example, a yarn withdrawal nozzle, which has a made of ceramic mouth funnel, which is fixed in a steel mouth support, preferably by gluing.
The mouth support in turn has an external thread which can be screwed into a corresponding internal thread in the region of the central through-bore of the channel plate adapter.

In der DE 195 02 917 C2 ist eine Fadenabzugsdüse beschrieben, bei der der keramische Mündungstrichter auf seiner Rückseite mit einer ferromagnetischen Anlagefläche versehen ist.
Diese ferromagnetische Anlagefläche korrespondiert mit Permanentmagneten, die fest in den Kanalplattenadapter eingelassen sind.In the DE 195 02 917 C2 a thread take-off nozzle is described in which the ceramic mouth funnel is provided on its back with a ferromagnetic contact surface.
This ferromagnetic contact surface corresponds to permanent magnets, which are firmly embedded in the channel plate adapter.

In der DE 37 29 425 A1 ist vorgeschlagen worden, die Fadenabzugsdüse mittels spezieller, zusätzlicher Klippverschlüsse auswechselbar an einer Faserkanalplatte festzulegen. Die Klippverschlüsse sind dabei entweder an der Faserkanalplatte befestigt und rasten in entsprechende Ansätze an der Fadenabzugsdüse ein oder die Klippverschlüsse sind Bestandteil der Fadenabzugsdüse und korrespondieren dann mit entsprechenden Einrichtungen an der Faserkanalplatte.In the DE 37 29 425 A1 It has been proposed to set the yarn withdrawal nozzle interchangeable by means of special, additional clip closures on a fiber channel plate. The clip closures are either attached to the fiber channel plate and snap into corresponding lugs on the thread take-off or the clip closures are part of the Fadenabzugsdüse and then correspond with appropriate facilities on the fiber channel plate.

Die vorbeschriebenen Einrichtungen zum auswechselbaren Festlegen einer Fadenabzugsdüse weisen jeweils verschiedene Nachteile auf.The above-described means for interchangeably fixing a yarn withdrawal nozzle each have various disadvantages.

Die durch die DE 37 29 425 A1 bekannte Einrichtung ist beispielsweise aufgrund ihrer verschiedenen Einzelteile etwas aufwendig.
Das heißt, die Herstellungskosten derartig ausgebildeter Kanalplattenadapter sind relativ hoch.The by the DE 37 29 425 A1 known device is somewhat expensive, for example, due to their various items.
That is, the manufacturing costs of such trained channel plate adapter are relatively high.

Des weiteren ist durch die DE 196 03 730 A1 eine Offenend-Spinnvorrichtung bekannt, bei der der auswechselbar in einer Aufnahme der Faserkanalplatte angeordnete Kanalplattenadapter kostengünstig aus einem Kunststoff gefertigt ist.
In den Kanalplattenadapter ist dabei ein aus einem abriebfesten Material gefertigter Faserleitkanal mit eiengegossen.Furthermore, by the DE 196 03 730 A1 an open-end spinning device known in which the interchangeable arranged in a receptacle of the fiber channel plate channel plate adapter is made inexpensively from a plastic.
In the channel plate adapter while a made of an abrasion resistant material Faserleitkanal is cast with eien.

Ausgehend vom vorgenannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, einen kostengünstigen, auswechselbaren Kanalplattenadapter zu entwickeln, der eine einfache und sichere Arretierung einer auswechselbaren Fadenabzugsdüse ermöglicht.Based on the aforementioned prior art, the present invention seeks to develop a cost-effective, replaceable channel plate adapter, which allows a simple and secure locking a replaceable yarn withdrawal nozzle.

Diese Aufgabe wird erfindungsgemäß durch einen Kanalplattenadapter gelöst, der die im Anspruch 1 beschriebenen Merkmale aufweist.This object is achieved by a channel plate adapter having the features described in claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.

Die erfindungsgemäße Ausführungsform eines Kanalplattenadapters hat insbesondere den Vorteil, daß ein solcher Kanalplattenadapter ungleich kostengünstiger zu fertigen ist, als alle bislang bekannten Kanalplattenadapter.The embodiment of a channel plate adapter according to the invention has the particular advantage that such a channel plate adapter is much cheaper to manufacture than all previously known channel plate adapter.

Insbesondere der erfindungsgemäße Klippverschluß, der einstückig an den Kunststoffkörper des Kanalplattenadapters angeformt ist, gewährleistet dabei nicht nur eine zuverlässige Fixierung der Fadenabzugsdüse, sondern stellt auch sicher, daß die Fadenabzugsdüse bei Bedarf jederzeit leicht ausgewechselt werden kann.In particular, the clip closure according to the invention, which is integrally formed on the plastic body of the channel plate adapter, not only ensures a reliable fixation of the thread take-off, but also ensures that the thread take-off can be easily replaced if necessary at any time.

Durch die in den Ansprüchen 2 bis 5 beschriebene vorteilhafte Ausbildung eines solchen Klippverschlusses wird dabei neben einer einwandfreie Arretierung auch eine exakte Zentrierung der Fadenabzugsdüse erreicht.
Das heißt, die kreissegmentförmig ausgebildeten Zentrierglieder des Klippverschlusses liegen mit ihrem Innendurchmesser unmittelbar am maximalen Außendurchmesser der Fadenabzugsdüse an und zentrieren die Fadenabzugsdüse dadurch exakt.
Da gleichzeitig die Klippelemente des Klippverschlusses die Randkontur der Fadenabzugsdüse, zumindest teilweise, überfassen, ist die Fadenabzugsdüse außerdem sofort sicher gehalten.Due to the advantageous embodiment of such a clip closure described in claims 2 to 5 is achieved in addition to a perfect locking and an exact centering of the thread take-off.
That is, the circular segment-shaped centering of the Klippverschlusses lie with its inner diameter directly to the maximum outer diameter of the yarn take-off and center the Fadenabzugsdüse thereby exactly.
At the same time, since the clip elements of the clip closure, at least partially, the edge contour of the thread take-off nozzle, the Fadenabzugsdüse is also held securely.

Wie im Anspruch 6 dargelegt, fixiert die in ihrer Betriebsstellung festgelegte Fadenabzugsdüse gleichzeitig auch ein Verschleißschutzröhrchen, das ebenfalls auswechselbar in der Durchgangsbohrung des Kanalplattenadapters angeordnet ist. Das Verschleißschutzröhrchen liegt dabei einerseits an einem hinteren Anschlag innerhalb der Durchgangsbohrung und wird andererseits durch die eingeklippste Fadenabzugsdüse arretiert.As set forth in claim 6, fixed in its operating position yarn draw simultaneously fixes a wear protection tube, which is also arranged interchangeable in the through hole of the channel plate adapter. The wear protection tube is on the one hand at a rear stop within the through hole and on the other hand locked by the clipped-thread take-off.

In vorteilhafter Ausführungsform ist dabei, wie im Anspruch 7 dargelegt, das Verschleißschutzröhrchen aus einem hochverschleißfesten Material gefertigt.
Dieses hochverschleißfeste Material verhindert, daß sich der entstehende und durch die Fadenabzugsdüse ablaufende Faden in den Kunststoffkörper des Kanalplattenadapters einarbeiten kann.
Geeignete hochverschleißfeste Werkstoffe sind beispielsweise Keramikwerkstoffe, legierte Stähle, etc.In an advantageous embodiment, as set forth in claim 7, the wear protection tube is made of a highly wear-resistant material.
This highly wear-resistant material prevents the resulting thread running through the thread withdrawal nozzle from being able to work into the plastic body of the channel plate adapter.
Suitable highly wear-resistant materials are, for example, ceramic materials, alloyed steels, etc.

Auch die Fadenabzugsdüse besteht vorzugsweise aus einem solchen hochverschleißfesten Material.
Das heißt, in der Regel ist die Fadenabzugsdüse aus einem technischen Keramikwerkstoff gefertigt.The yarn withdrawal nozzle is preferably made of such a highly wear-resistant material.
That is, usually the thread take-off nozzle is made of a technical ceramic material.

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

Es zeigt:

Fig. 1
eine Offenend-Rotorspinnvorrichtung mit einem in einem Rotorgehäuse umlaufenden Spinnrotor, wobei das Rotorgehäuse durch einen Deckel, in den eine Faserkanalplatte integriert ist, verschlossen ist, und die Faserkanalplatte eine Aufnahme zur Positionierung eines erfindungsgemäßen, auswechselbaren, Kanalplattenadapters aufweist,
Fig. 2
den erfindungsgemäßen Kanalplattenadapter in Seitenansicht, teilweise im Schnitt,
Fig. 3
eine perspektivische Ansicht des erfindungsgemäßen Kanalplattenadapters mit einer in einer zentralen Durchgangsbohrung festlegbaren Fadenabzugsdüse sowie einem nachgeschalteten Verschleißschutzröhrchen.
It shows:
Fig. 1
an open-end rotor spinning device with a spinning rotor revolving in a rotor housing, wherein the rotor housing is closed by a cover, in which a fiber channel plate is integrated, and the fiber channel plate has a receptacle for positioning a replaceable, channel plate adapter according to the invention,
Fig. 2
the channel plate adapter according to the invention in side view, partly in section,
Fig. 3
a perspective view of the channel plate adapter according to the invention with a fixable in a central through-hole yarn withdrawal nozzle and a downstream wear protection tube.

Die Figur 1 zeigt in Seitenansicht eine Offenend-Rotorspinnvorrichtung 1 mit einem unterdruckbeaufschlagten Rotorgehäuse 2, in dem ein Spinnrotor 3 mit hoher Drehzahl rotiert. Der Spinnrotor 3 ist dabei in bekannter Weise über seinen Rotorschaft 7 auf einer Stützscheibenlagerung 4 abgestützt; während die axiale Positionierung des Spinnrotors 3 über ein Axiallager 33 erfolgt.
Der Antrieb des Spinnrotors 3 erfolgt, wie bekannt, mittels eines maschinenlangen Tangentialriemens 5, den eine Andrückrolle 6 gegen den Rotorschaft 7 drückt.
Zur Erzeugung des notwendigen Spinnunterdruckes ist das Rotorgehäuse 2 über eine Unterdruckleitung 8 an eine (nicht dargestellte) Unterdruckquelle angeschlossen.The FIG. 1 shows in side view an open-end rotor spinning device 1 with a vacuum-pressurized rotor housing 2, in which a spinning rotor 3 rotates at high speed. The spinning rotor 3 is supported in a known manner via its rotor shaft 7 on a support disk bearing 4; while the axial positioning of the spinning rotor 3 takes place via a thrust bearing 33.
The drive of the spinning rotor 3 is effected, as known, by means of a machine-long tangential belt 5, which presses a pressure roller 6 against the rotor shaft 7.
To generate the necessary spinning negative pressure, the rotor housing 2 is connected via a vacuum line 8 to a (not shown) vacuum source.

Das Rotorgehäuse 2 wird auf seiner Frontseite 9 von einer sogenannten Faserkanalplatte 10 verschlossen, die Teil eines als Schwenkgehäuse 11 ausgebildeten Deckels ist.
Die Faserkanalplatte 10 ist dabei entweder ein Bestandteil des Schwenkgehäuses 11 oder die Faserkanalplatte 10 ist lösbar am Schwenkgehäuse 11 befestigt.
Wie in Figur 1 weiter angedeutet, sind in das Schwenkgehäuse 11, das eine Schwenkachse 12 schwenkbar gelagert ist, weitere Aggregate der Offenend-Rotorspinnvorrichtung 1, beispielsweise eine Faserbandauflöseeinrichtung 13, eingebaut.
Das heißt, über einen, hier nicht näher dargestellten, Faserbandeinzugszylinder 14 wird ein Vorlagefaserband in die Auflöseeinrichtung 13 eingezogen und dort durch eine Faserbandauflösewalze 15 in Einzelfasern zerlegt.
Die Einzelfasern werden anschließend über einen Faserleitkanal 16 zum Spinnrotor 3 befördert.
Die Faserbandauflösewalze 15 wird dabei vorzugsweise durch einen Tangentialriemen 17 angetrieben, während der Antrieb des Faserbandeinzugszylinders 14 über eine maschinenlange Antriebswelle oder einen elektromotorischen Einzelantrieb 18 erfolgt.
Im Schwenkgehäuse 11 kann des weiteren, unterhalb der Faserbandauflösewalze 15, eine pneumatisch beaufschlagbare Schmutzkammer 19 für den bei der Auflösung des Faserbandes anfallenden Schmutz angeordnet sein.
Die Schmutzkammer 19 ist in diesem Fall über eine entsprechende Absaugleitung an eine zentrale Schmutzentsorgungseinrichtung der Offenend-Rotorspinnmaschine angeschlossen.The rotor housing 2 is closed on its front side 9 by a so-called fiber channel plate 10, which is part of a designed as a pivot housing 11 lid.
The fiber channel plate 10 is either a part of the pivot housing 11 or the fiber channel plate 10 is detachably attached to the pivot housing 11.
As in FIG. 1 further indicated, in the pivot housing 11, which is pivotally mounted a pivot axis 12, further units of the open-end rotor spinning device 1, for example, a sliver disassembling device 13, installed.
That is, via a, not shown here, Faserbandeinzugszylinder 14 is a template fiber tape in the Pulled opening device 13 and there disassembled by a sliver pick-up roller 15 in individual fibers.
The individual fibers are then conveyed via a Faserleitkanal 16 to the spinning rotor 3.
The sliver pick-up roller 15 is preferably driven by a tangential belt 17, while the drive of the sliver feed cylinder 14 via a machine-length drive shaft or an electric motor single drive 18 takes place.
In the pivot housing 11 can further, below the sliver opening roller 15, a pneumatically acted upon dirt chamber 19 can be arranged for the incurred in the dissolution of the sliver dirt.
The dirt chamber 19 is connected in this case via a corresponding suction line to a central waste disposal device of the open-end rotor spinning machine.

Die in das Schwenkgehäuse 11 eingesetzte Faserkanalplatte 10 weist eine ringförmige Ausnehmung 20 zum Positionieren eines Lippendichtelementes 21 sowie eine in Richtung des Rotorgehäuses 2 hin offene Aufnahme 22 für einen auswechselbaren Kanalplattenadapter 24 auf.
Die seitliche Anlagefläche 23 der Aufnahme 22 ist vorzugsweise kegelstumpfförmig ausgebildet. Durch eine solche Ausbildung kann sichergestellt werden, das der winkelgenau ausgerichtete Kanalplattenadapter 24 mit seinem Einsatzkörper 25 luftdicht in der Aufnahme 22 der Faserkanalplatte 10 positioniert ist. Das heißt, durch eine solche Ausbildung wird vermieden, daß beim Einsetzen des Kanalplattenadapters 24 Undichtigkeiten aufgrund von Passungsfehlern auftreten können.The fiber channel plate 10 inserted into the swivel housing 11 has an annular recess 20 for positioning a lip sealing element 21 and a receptacle 22, which is open in the direction of the rotor housing 2, for an exchangeable channel plate adapter 24.
The lateral contact surface 23 of the receptacle 22 is preferably frusto-conical. Such a design can ensure that the accurately aligned channel plate adapter 24 with its insert body 25 is airtightly positioned in the receptacle 22 of the fiber channel plate 10. That is, by such a configuration it is avoided that 24 leaks due to mating errors may occur when inserting the channel plate adapter.

Der Kanalplattenadapter 24 ist dabei aus einem Kunststoff gefertigt und weist, wie insbesondere aus den Figuren 2 und 3 ersichtlich, den Mündungsbereich 34 des Faserleitkanals 16 sowie eine zentrale Durchgangsbohrung 26 für eine dem Spinnrotor 3 gegenüberliegende Fadenabzugsdüse 27 auf. Innerhalb des Kanalplattenadapter 24 wird der Faserleitkanal 16 dabei durch einen verschleißfesten Einsatz 42 gebildet, der bei der Herstellung des aus Kunststoff gefertigten Kanalplattenadapters 24 fest mit eingegossen wird.
Im Betriebszustand ist in der zentralen Durchgangsbohrung 26 neben der Fadenabzugsdüse 27 noch ein Verschleißschutzröhrchen 36 angeordnet, an das sich ein Fadenabzugsröhrchen 28 anschließt.
Das Fadenabzugsröhrchen 28 durchfaßt dabei eine Bohrung im Fortsatz 29 eines Einsatzkörpers 25, der endseitig wenigstens einen Fixieransatz 31 aufweist.
Der Fixieransatz 31 erstreckt sich im wesentlichen orthogonal zur Längsachse 30 des Fortsatzes 29 und wird von einem Arretierungsmittel 32 hintergriffen.
Diese Art der Befestigung eines Kanalplattenadapters ist bekannt und beispielsweise in der DE 197 29 192 A1 ausführlich beschrieben.The channel plate adapter 24 is made of a plastic and has, as in particular from the Figures 2 and 3 can be seen, the mouth portion 34 of the fiber guide 16 and a central through hole 26 for a spinning rotor 3 opposite thread take-off nozzle 27 on. Within the channel plate adapter 24, the fiber guide channel 16 is formed by a wear-resistant insert 42, which is cast in the manufacture of the made of plastic channel plate adapter 24 firmly.
In the operating state, a wear protection tube 36 is arranged in the central through-bore 26 next to the yarn withdrawal nozzle 27, to which a thread withdrawal tube 28 is connected.
The thread withdrawal tube 28 thereby encompasses a bore in the extension 29 of an insert body 25 which has at least one fixing projection 31 at the end.
The fixing lug 31 extends substantially orthogonal to the longitudinal axis 30 of the extension 29 and is engaged behind by a locking means 32.
This type of attachment of a channel plate adapter is known and, for example in the DE 197 29 192 A1 described in detail.

Der erfindungsgemäße Kanalplattenadapter 24 weist im Bereich seiner zentralen Durchgangsbohrung 26 einen einstückig an den Kunststoffkörper des Kanalplattenadapters 24 angeformten Klippverschluß 37 auf.
Dieser Klippverschluß 37 zum Arretieren der Fadenabzugsdüse 27 verfügt über Zentrierglieder 38 und über Klippelemente 39. Die Zentrierglieder 38 sind dabei als Kreissegmente 38A, 38B, 38C, etc. ausgebildet, deren gemeinsamer Innendurchmesser Dinnen so gewählt ist, daß er nur geringfügig über dem maximalen Durchmesser Dmax der Randkontur 40 der Fadenabzugsdüse 27 liegt.
Die Klippelemente 39, die jeweils zwischen den Zentriergliedern 38 angeordnet sind, weisen auf ihrer der Fadenabzugsdüse 37 zugewandten Innenseite jeweils eine konische Anlagefläche 41 auf, die mit einer entsprechend konisch ausgebildeten Anlagefläche auf der Außenseite der Randkontur 40 der Fadenabzugsdüse 27 korrespondiert.
Das heißt, die Klippelemente 39 überfassen teilweise die Außenseite der Randkontur 40 der Fadenabzugsdüse 27.The channel plate adapter 24 according to the invention has in the region of its central through-bore 26 integrally formed on the plastic body of the channel plate adapter 24 clip closure 37.
This clip closure 37 for locking the Fadenabzugsdüse 27 has centering members 38 and clip members 39. The centering members 38 are formed as circular segments 38A, 38B, 38C, etc., whose common inner diameter D inside is selected so that it is only slightly above the maximum Diameter D max of the edge contour 40 of the yarn draw-off nozzle 27 is located.
The clip elements 39, which are respectively arranged between the centering members 38, have a conical contact surface 41 on their inner side facing the yarn withdrawal nozzle 37, which corresponds to a correspondingly conical contact surface on the outside of the edge contour 40 of the yarn withdrawal nozzle 27.
That is, the clip elements 39 partially overlap the outside of the edge contour 40 of the thread withdrawal nozzle 27.

Im Betriebszustand ist durch den Klippverschluß 37 nicht nur die Fadenabzugsdüse 27, sicher und leicht auswechselbar festgelegt, sondern auch das in der zentralen Durchgangsbohrung 26 positionierte Verschleißschutzröhrchen 36.In the operating state is determined by the clip closure 37 not only the thread withdrawal nozzle 27, safe and easily replaceable, but also in the central through hole 26 positioned wear protection tube 36th

Claims (8)

  1. Channel plate adapter (24) for an open-end rotor spinning device, which comprises a spinning rotor (3) which rotates at high speed inside a rotor housing which can be placed under vacuum, wherein the channel plate adapter (24) made of plastic, which comprises the orifice area (34) of a fibre guide conduit (16) and a central through-bore for a yarn withdrawal nozzle (27), is arranged replaceably in a mount (22) of a fibre channel plate (10), which closes the rotor housing during the spinning operation,
    characterised in that
    the channel plate adapter (24) has a one-piece clip-on closure (37) in the inlet area of the through-bore (26) for centring and fixing the yarn withdrawal nozzle (27).
  2. Channel plate adapter according to claim 1, characterised in that the clip-on closure (37) consists of rigid centring elements (38) corresponding to the edge contour (40) of the yarn withdrawal nozzle (27) and elastic clip-on elements (39).
  3. Channel plate adapter according to claim 2, characterised in that the clip-on closure (37) comprises at least two centring elements (38A, 39B) arranged spaced apart from one another, between which at least one clip-on element (39) is positioned, which extends at least partially over the edge contour of the yarn withdrawal nozzle (27).
  4. Channel plate adapter according to claim 3, characterised in that the centring elements (38A, 38B, etc.) are designed in the form an arcuate segment and are arranged so that the yarn withdrawal nozzle (27) with its maximum external diameter (Dmax) bears against the joint internal diameter (Dint) of the centring elements (38A, 38B, etc.).
  5. Channel plate adapter according to claim 3, characterised in that each clip-on element (39) has a conically extending interior contact face (41), which corresponds to a conical exterior face of the edge contour (40) of the yarn withdrawal nozzle (27).
  6. Channel plate adapter according to claim 3, characterised in that a wear protection tube (36) is arranged in the through-bore (26) of the channel plate adapter (24), on a stop (24), which wear protection tube (36) is fixed in place by the yarn withdrawal nozzle (27) when fixed in its operating position by the clip-on closure (37).
  7. Channel plate adapter according to claim 6, characterised in that the wear protection tube (36) is made from a wear-resistant material, for example steel, technical ceramics etc.
  8. Channel plate adapter according to claim 6, characterised in that the yarn withdrawal nozzle (27) is made from a technical ceramic material.
EP04000300A 2003-02-08 2004-01-09 Conduit-plate adapter for an open-end spinning device Expired - Lifetime EP1445359B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10305279 2003-02-08
DE10305279A DE10305279A1 (en) 2003-02-08 2003-02-08 Channel plate adapter for an open-end rotor spinning device

Publications (3)

Publication Number Publication Date
EP1445359A2 EP1445359A2 (en) 2004-08-11
EP1445359A3 EP1445359A3 (en) 2005-04-13
EP1445359B1 true EP1445359B1 (en) 2010-10-13

Family

ID=32603217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04000300A Expired - Lifetime EP1445359B1 (en) 2003-02-08 2004-01-09 Conduit-plate adapter for an open-end spinning device

Country Status (4)

Country Link
US (1) US7036301B2 (en)
EP (1) EP1445359B1 (en)
CN (1) CN100526526C (en)
DE (2) DE10305279A1 (en)

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DE102016109687A1 (en) 2016-05-25 2017-11-30 Rieter Ingolstadt Gmbh Thread take-off nozzle for an open-end spinning device

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DE102004029020A1 (en) * 2004-06-16 2005-12-29 Saurer Gmbh & Co. Kg Method and apparatus for operating an open-end rotor spinning device
DE102006040003B4 (en) * 2005-12-06 2018-01-25 Rieter Ingolstadt Gmbh Open-end spinning device with exchangeable twist-blocking element
DE102006001449B4 (en) * 2006-01-10 2017-02-23 Rieter Ingolstadt Gmbh Open-end spinning device with a driven spinning rotor
DE102011010925A1 (en) * 2011-02-11 2012-08-16 Oerlikon Textile Gmbh & Co. Kg Faserleitkanaleinrichtung for an open-end spinning device
US8643244B2 (en) 2011-07-25 2014-02-04 Hamilton Sundstrand Corporation Strength cast rotor for an induction motor
DE102011120106A1 (en) 2011-12-02 2013-06-06 Oerlikon Textile Gmbh & Co. Kg Cover element of an open-end spinning device for closing an evacuated, forwardly open rotor housing
CN103774305B (en) * 2014-01-07 2016-01-20 太仓市世博纺织配件有限公司 The quick-change mechanism of twist arrester on a kind of elasticizer
CN103774303B (en) * 2014-01-07 2016-01-20 太仓市世博纺织配件有限公司 The quick change method of twist arrester on elasticizer
DE102015115912A1 (en) * 2015-09-21 2017-03-23 Maschinenfabrik Rieter Ag Channel plate adapter and open-end spinning device with a channel plate adapter
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DE102016109687A1 (en) 2016-05-25 2017-11-30 Rieter Ingolstadt Gmbh Thread take-off nozzle for an open-end spinning device
EP3257980A1 (en) 2016-05-25 2017-12-20 Rieter Ingolstadt GmbH Thread drawing nozzle for an open end spinning machine
US10544522B2 (en) 2016-05-25 2020-01-28 Rieter Ingolstadt Gmbh Thread draw-off nozzle for an open-end spinning device

Also Published As

Publication number Publication date
CN100526526C (en) 2009-08-12
EP1445359A3 (en) 2005-04-13
DE10305279A1 (en) 2004-08-19
US7036301B2 (en) 2006-05-02
EP1445359A2 (en) 2004-08-11
US20040154280A1 (en) 2004-08-12
CN1519405A (en) 2004-08-11
DE502004011763D1 (en) 2010-11-25

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