EP1664401A1 - Open-end spinning device - Google Patents

Open-end spinning device

Info

Publication number
EP1664401A1
EP1664401A1 EP04740670A EP04740670A EP1664401A1 EP 1664401 A1 EP1664401 A1 EP 1664401A1 EP 04740670 A EP04740670 A EP 04740670A EP 04740670 A EP04740670 A EP 04740670A EP 1664401 A1 EP1664401 A1 EP 1664401A1
Authority
EP
European Patent Office
Prior art keywords
rotor
open
spinning
rotor housing
housing
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
EP04740670A
Other languages
German (de)
French (fr)
Other versions
EP1664401B1 (en
Inventor
Heinz-Georg Wassenhoven
Georg Schmidt
Norbert Coenen
Friedhelm Mistler
Stephan Bühren
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Saurer GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP1664401A1 publication Critical patent/EP1664401A1/en
Application granted granted Critical
Publication of EP1664401B1 publication Critical patent/EP1664401B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • D01H4/04—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 imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • D01H4/12—Rotor bearings; Arrangements for driving or stopping
    • D01H4/14—Rotor driven by an electric motor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/16—Framework; Casings; Coverings ; Removal of heat; Means for generating overpressure of air against infiltration of dust; Ducts for electric cables

Definitions

  • the invention relates to an open-end spinning device according to the preamble of claim 1.
  • Open-end spinning devices of this type are known in various embodiments in connection with rotor spinning machines and are described in numerous patent applications.
  • Open-end spinning devices for example, have long been known, in which the various spinning components are arranged in a spinning box frame, which in turn is composed of several individual parts.
  • Open-end spinning devices described in DE 32 47 411 C2 have a spinning box frame which consists of at least two side parts which can be fixed to the machine base frame of a textile machine, at least two upper strut elements and at least one lower spacer.
  • the side parts and the strut elements are connected to one another via a large number of screw bolts, the individual components being aligned in a complex manner via a fitting bore / dowel pin connections.
  • a disadvantage of such open-end spinning devices is, among other things, the large number of fitting bores that are necessary in order to be able to fit the spinning box frame exactly.
  • Components are joined in the laser welding process.
  • a spinning box frame is in itself a relatively expensive component that only serves to separate the various spinning components of an open-end To store the spinning device exactly positioned and to fix it to the machine frame of a textile machine. It has therefore been attempted in the past to position the spinning components of an open-end spinning device on a textile machine without using a special spinning box frame.
  • DE 21 30 688 AI describes such an open-end spinning device.
  • the spinning components are, in part largely independent of one another, directly on a longitudinal member of the
  • Machine frame of a textile machine installed.
  • the rotor housing is fixed via lateral flanges on the upper leg of a U-shaped carrier and has a rear recess in which a spinning rotor driven by a single motor is mounted.
  • the front of the rotor housing can be closed by a cover, which in turn is pivotally attached to the rotor housing.
  • Rotor housing is functionally connected via a fiber guide channel.
  • the object of the invention is to develop an open-end spinning device which, on the one hand, can be produced cost-effectively, and on the other hand it is ensured that the various spinning components can be positioned exactly.
  • the embodiment according to the invention has the advantage that a complex spin box frame for positioning the various spinning components can be dispensed with entirely.
  • this forms, for example, detachably via fastening tabs
  • Machine frame of the textile machine can be fixed rotor housing the supporting backbone of the open-end
  • Thermal conductivity is manufactured, the single-motor drive for the spinning rotor is screwed on directly.
  • Dissolving device to the spinning rotor promotes and thereby
  • Rotor housing flows, at the same time the drive of the
  • Fibrous tape opening device having lid element are attached, provides the inventive design Overall, a cost-effective and extremely compact construction.
  • the design according to the invention also ensures that the spatial assignment of the individual spinning components is adhered to very precisely and, for example, can be reproduced at any time when individual spinning components are exchanged, which is extremely important in the interest of a good spinning result.
  • the rotor housing is manufactured as a cast part, aluminum being used, for example, as the preferred metallic material.
  • Such a manufacturing process makes it possible, in particular, to produce serial parts inexpensively and with a precise fit.
  • the housing of the electromagnetic drive of the spinning rotor which also has the rear magnetic bearing point for the spinning rotor, is via bolts that secure the rear wall of the
  • Grip the rotor housing from the front can be fixed to the rotor housing.
  • the front magnetic bearing point integrated in the rotor housing also forms a centering lug on which the housing the drive of the spinning rotor can be positioned exactly (claim 5).
  • a housing for the control electronics of the spinning rotor drive is further provided.
  • This housing is directly connected to the housing of the spinning rotor drive.
  • This arrangement also supports the overall very compact design of the open-end spinning device according to the invention.
  • the carriers on which the cover element having the fiber sliver opening device is rotatably and removably supported to a limited extent, as set out in claim 7, are likewise produced as castings.
  • the carriers that can be fixed on the rotor housing also preferably consist of a metallic material, for example
  • the separately manufactured supports with fitting bores can be fixed precisely on the rotor housing using corresponding centering pins and screw bolts and then form a quasi one-piece component with the rotor housing with a pivot axis for the cover element that is exactly positioned with respect to the spinning rotor axis.
  • the spinning components arranged in the cover element can therefore also always be positioned exactly with respect to the spinning rotor.
  • the sliding bushes arranged in corresponding bearing locations of the carrier correspond, as is known, with adjustable pins on the cover element and enable the cover element to be swung open and closed easily and, if required, to quickly and easily replace this component.
  • FIG. 1 is a side view of an open-end spinning device according to the invention
  • FIG. 2 is a side view of the opposite side of the open-end spinning device shown in Figure 1,
  • Fig. 4 shows the rotor housing of the open-end spinning device according to the invention with flanged bearing arms.
  • FIG. 1 shows the left side in viewing direction X
  • FIG. 2 shows the right side in viewing direction X
  • FIG. 3 shows the rear of the open-end spinning device 1.
  • the open-end spinning device 1 has, as a central, load-bearing component, a rotor housing 2 made of a highly thermally conductive metal, for example aluminum, on which Carrier 4 are precisely fitted via dowel pins 16 or screw bolts 17.
  • the cover element 6, which closes the rotor housing 2 during spinning operation has an annular seal 22 which bears against the front wall of the rotor housing 2.
  • a sliver opening device 23 is integrated in the cover element 6 and, as indicated schematically, has a opening roller 7, preferably driven by a single motor, and a sliver drawing cylinder 8, also driven by a single motor.
  • Rotor cup rotates in the rotor housing 2 which can be pressurized.
  • the single-motor driven spinning rotor 21 is over
  • Magnetic bearings 24, 25 supported without contact.
  • a housing 14 is connected to the housing of the spinning rotor drive 3 and receives the control electronics 15 for the drive 3.
  • the control electronics 15 ensure that the spinning rotor 21 always rotates at the prescribed speed.
  • the rotor housing 2 is also, as usual, via a pneumatic line 10 to a (not shown) Vacuum source connected, which provides the vacuum required in the spinning process.
  • the spinning rotor drive 3 is arranged on the rear wall 26 of the rotor housing 2 and, as can be seen in particular from detail Y in FIG. 1, includes a centering projection 29 in the region of the rear wall 26 of the rotor housing 2 Centering approach 29, the front magnetic bearing 24 is also integrated for the contactlessly mounted spinning rotor 21.
  • the thread (not shown) produced during the spinning process in the open-end spinning device 1 is drawn off from the open-end spinning device 1 via a thread take-off tube 9 and then, as is known, wound up into a cheese by means of a known (not shown) winding device.
  • a sliver compactor 19 is also arranged on the cover element 6, as usual, via which the sliver (not shown) is fed to the sliver opening device 23.
  • this view schematically shows the drive 18 for the fiber ribbon feed cylinder 8 and the bearing bracket 20 for the opening roller 7.
  • FIG. 3 shows a rear view of the open-end spinning device 1 according to the invention.
  • carrier 4 are flanged to the rotor housing 2 via dowel pins 16 and screw bolts 17.
  • the end of the carrier 5 has a pivot axis 5 for the cover element 6, which is the rotor housing 2 which can be pressurized closes during the spinning operation.
  • the drive 3 for the spinning rotor 21 can also be seen, which in turn is connected to the housing 14 for the control electronics 15.
  • FIG. 4 shows a perspective illustration of a rotor housing 2 which is designed as a central, load-bearing component and is preferably made of aluminum.
  • bores are also made in the rear wall 26 of the rotor housing 2 in the region of the centering projection 29, in which bores 27 can be fixed, which lock the drive 3 of the spinning rotor 21 on the rotor housing 2.

Landscapes

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

Abstract

The invention relates to an open end spinning device comprising a single-motor driven spinning rotor whose cup is rotationally actuated in the rotor housing which is negatively pressurised and closed by a cover element during a spinning process. According to said invention, the rotor housing (2) is embodied in the form of a central element which is fixable to the frame of a textile machine and connects the control (3) of the spinning rotor (21) to the carrier (4) for the cover element (6) provided with a fibre band releasing device (23).

Description

Beschreibung: Description:
Offenend-SpinnvorriehtungOpen-Spinnvorriehtung
Die Erfindung betrifft eine Offenend-Spinnvorrichtung gemäß dem Oberbegriff des Anspruches 1.The invention relates to an open-end spinning device according to the preamble of claim 1.
Derartige Offenend-Spinnvorrichtungen sind im Zusammenhang mit Rotorspinnmaschinen in verschiedenen Ausführungsformen bekannt und in zahlreichen Schutzrechtsanmeldungen beschrieben.Open-end spinning devices of this type are known in various embodiments in connection with rotor spinning machines and are described in numerous patent applications.
Seit langem sind beispielsweise Offenend-Spinnvorrichtungen bekannt, bei denen die verschiedenen Spinnkomponenten in einem Spinnboxrahmen angeordnet sind, der seinerseits aus mehreren Einzelteilen zusammengesetzt ist.Open-end spinning devices, for example, have long been known, in which the various spinning components are arranged in a spinning box frame, which in turn is composed of several individual parts.
Diese bekannten, z.B. in der DE 32 47 411 C2 beschriebenen Offenend-Spinnvorrichtungen weisen einen Spinnboxrahmen auf, der aus wenigstens zwei am Maschinengrundgestell einer Textilmaschine festlegbaren Seitenteilen, wenigstens zwei oberen Verstrebungselementen sowie mindestens einem unteren Abstandshalter besteht.These known, e.g. Open-end spinning devices described in DE 32 47 411 C2 have a spinning box frame which consists of at least two side parts which can be fixed to the machine base frame of a textile machine, at least two upper strut elements and at least one lower spacer.
Die Seitenteile und die Verstrebungselemente sind dabei über eine Vielzahl von Schraubenbolzen miteinander verbunden, wobei die einzelnen Bauteile über Paßbohrung/Paßstift-Verbindungen aufwendig ausgerichtet sind.The side parts and the strut elements are connected to one another via a large number of screw bolts, the individual components being aligned in a complex manner via a fitting bore / dowel pin connections.
Nachteilig bei derartigen Offenend-Spinnvorrichtungen ist unter anderem die große Anzahl von Paßbohrungen, die notwendig sind, um den Spinnboxrahmen exakt fügen zu können.A disadvantage of such open-end spinning devices is, among other things, the large number of fitting bores that are necessary in order to be able to fit the spinning box frame exactly.
Außerdem besteht bei Schraubverbindungen stets die Gefahr, daß sie sich aufgrund der Erschütterungen beim Lauf derIn addition, there is always the risk of screw connections that they are due to the vibrations when running
Textilmaschine mit der Zeit lockern.Loosen the textile machine over time.
Das heißt, mit solchen Schraubverbindungen ist auf Dauer keine ausreichende Steifigkeit eines Spinnboxrahmens zu gewährleisten, der neben der Spinnrotorlagerung das Rotorgehäuse, die Faserbandauflöseeinrichtung sowie ein Deckelelement zum Verschließen des Rotorgehäuses während des Spinnbetriebes aufnehmen muß.This means that such a screw connection does not provide sufficient stiffness for a spin box frame in the long term ensure that, in addition to the spinning rotor bearing, the rotor housing, the sliver opening device and a cover element for closing the rotor housing must be accommodated during the spinning operation.
Um die vorbeschriebenen Nachteile zu vermeiden, ist man deshalb dazu übergegangen, die verschiedenen Bauteile derartiger Spinnboxrahmen durch Elektroschweißen unlösbar zu verbinden.In order to avoid the disadvantages described above, it has therefore been decided to inseparably connect the various components of such spin box frames by means of electric welding.
Beim Elektroschweißen besteht allerdings die Gefahr, daß es aufgrund großflächiger Erwärmung der zu verschweißenden Teile zu wär espannungsbedingten Verzügen der einzelnen Bauteile kommt. Die Bauteile müssen daher nach dem Schweißen zunächst gerichtet werden, bevor die Bohrungen zur paßgenauen Positionierung der verschiedenen Spinnkomponente eingearbeitet werden können.With electric welding, however, there is a risk that warping of the individual components due to the large-scale heating of the parts to be welded will result in warping. The components must therefore first be straightened after welding before the holes can be machined for the precise positioning of the various spinning components.
Zur Vermeidung solcher wär espannungsbedingter Verzüge ist deshalb bereits vorgeschlagen worden, die Einzelteile desIn order to avoid such warp-related delays, the individual parts of the
Spinnboxrahmens durch Laserschweißen zu verbinden.Connect the spinning box frame by laser welding.
Die DE 197 17 737 AI beschreibt solche Spinnboxrahmen, derenDE 197 17 737 AI describes such spin box frames, their
Bauteile im Laserschweißverfahren gefügt sind.Components are joined in the laser welding process.
Da bei diesem Fügeverfahren die eingesetzte Energie exakt dosiert und der Bereich der Wärmezufuhr durch Fokussierung desSince the energy used in this joining process is precisely metered and the area of heat supply is focused by focusing on the
Laserstrahles sehr genau lokalisierbar ist, ist eine großflächige Wärmebeeinflussung der beteiligten Bauteile nicht gegeben. Ein Verzug der Bauteile des Spinnboxrahmens tritt bei diesem Fügeverfahren nicht auf.Laser beam is very precisely localized, there is no large-scale heat influence of the components involved. A warping of the components of the spinning box frame does not occur with this joining process.
Ein Spinnboxrahmen stellt allerdings an sich bereits ein relativ kostspieliges Bauteil dar, das lediglich dazu dient, die verschiedenen Spinnkomponenten einer Offenend- Spinnvorrichtung exakt positioniert zu lagern und am Maschinenrahmen einer Textilmaschine festzulegen. Es ist daher in der Vergangenheit bereits versucht worden, die Spinnkomponenten einer Offenend-Spinnvorrichtung an einer Textilmaschine zu positionieren, ohne daß dabei ein spezieller Spinnboxrahmen zum Einsatz kommt. Die DE 21 30 688 AI beschreibt eine solche Offenend- Spinnvorrichtung . Bei dieser bekannten Offenend-Spinnvorrichtung sind die Spinnkomponenten, zum Teil weitestgehend unabhängig voneinander, direkt auf einen Längsträger desHowever, a spinning box frame is in itself a relatively expensive component that only serves to separate the various spinning components of an open-end To store the spinning device exactly positioned and to fix it to the machine frame of a textile machine. It has therefore been attempted in the past to position the spinning components of an open-end spinning device on a textile machine without using a special spinning box frame. DE 21 30 688 AI describes such an open-end spinning device. In this known open-end spinning device, the spinning components are, in part largely independent of one another, directly on a longitudinal member of the
Maschinengrundrahmens einer Textilmaschine montiert. Das Rotorgehäuse ist dabei über seitliche Flansche auf dem oberen Schenkel eines U-förmigen Trägers festgelegt und weist eine rückwärtige Ausnehmung auf, in der ein einzelmotorisch angetriebener Spinnrotor gelagert ist.Machine frame of a textile machine installed. The rotor housing is fixed via lateral flanges on the upper leg of a U-shaped carrier and has a rear recess in which a spinning rotor driven by a single motor is mounted.
Die Frontseite des Rotorgehäuses ist über einen Deckel verschließbar, der seinerseits schwenkbar am Rotorgehäuse festgelegt ist.The front of the rotor housing can be closed by a cover, which in turn is pivotally attached to the rotor housing.
Beabstandet zum Rotorgehäuse ist an der Stirnseite des unterenSpaced to the rotor housing is on the front of the lower one
Schenkels des U-förmigen Trägers eineU-shaped beam one leg
Faserbandauflöseeinrichtung befestigt, die mit demFastener sliver attached to the
Rotorgehäuse funktioneil über einen Faserleitkanal verbunden ist.Rotor housing is functionally connected via a fiber guide channel.
Die gewählte getrennte Anordnung der Spinnkomponenten hat sich während des Spinnbetriebes allerdings als wenig vorteilhaft erwiesen, so daß sich diese bekannten Offenend- Spinnvorrichtungen in der Praxis nie durchsetzen konnten.The selected separate arrangement of the spinning components has proven to be of little advantage during the spinning operation, however, so that these known open-end spinning devices could never prevail in practice.
Ausgehend vom vorgenannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Offenend-Spinnvorrichtung zu entwickeln, die einerseits kostengünstig herstellbar ist, und bei der andererseits gewährleistet ist, daß die verschiedenen Spinnkomponenten exakt positionierbar sind.Starting from the aforementioned prior art, the object of the invention is to develop an open-end spinning device which, on the one hand, can be produced cost-effectively, and on the other hand it is ensured that the various spinning components can be positioned exactly.
Diese Aufgabe wird erfindungsgemäß durch eine Offenend- Spinnvorrichtung gelöst, wie sie im Anspruch 1 beschrieben is .This object is achieved by an open-end spinning device as described in claim 1.
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche .Advantageous embodiments of the invention are the subject of the dependent claims.
Durch die Ausbildung des Rotorgehäuses als zentrales, tragendes Bauteil hat die erfindungsgemäße Ausführungsform den Vorteil, daß auf einen komplexen Spinnboxrahmen zum Positionieren der verschiedenen Spinnkomponenten völlig verzichtet werden kann.By designing the rotor housing as a central, load-bearing component, the embodiment according to the invention has the advantage that a complex spin box frame for positioning the various spinning components can be dispensed with entirely.
Das heißt, gemäß vorliegender Erfindung bildet das beispielsweise über Befestigungslaschen lösbar amThat is, according to the present invention, this forms, for example, detachably via fastening tabs
Maschinenrahmen der Textilmaschine festlegbare Rotorgehäuse das tragende Rückgrat der erfindungsgemäßen Offenend-Machine frame of the textile machine can be fixed rotor housing the supporting backbone of the open-end
Spinnvorrichtung, an dem die anderen Spinnkomponenten angebracht sind.Spinning device on which the other spinning components are attached.
An das Rotorgehäuse, das wie im Anspruch 2 beschrieben, vorzugsweise aus einem metallischen Werkstoff mit guterTo the rotor housing, as described in claim 2, preferably made of a metallic material with good
Wärmeleitfähigkeit gefertigt ist, ist direkt der einzelmotorische Antrieb für den Spinnrotor angeschraubt.Thermal conductivity is manufactured, the single-motor drive for the spinning rotor is screwed on directly.
Ein solche Anordnung hat außerdem den Vorteil, daß dieSuch an arrangement also has the advantage that
Transportluft, die pneumatisch die Fasern von derTransport air that pneumatically removes the fibers from the
Auflöseeinrichtung zum Spinnrotor fördert und dabei durch dasDissolving device to the spinning rotor promotes and thereby
Rotorgehäuse strömt, gleichzeitig auch den Antrieb desRotor housing flows, at the same time the drive of the
Spinnrotors kühlt.Spinning rotor cools.
Da am Rotorgehäuse außerdem die Träger für ein eineSince on the rotor housing also the carrier for one
Faserbandauflöseeinrichtung aufweisendes Deckelelement befestigt sind, stellt die erfindungsgemäße Ausbildung insgesamt eine kostengünstige und äußerst kompakte Konstruktion dar. Die erfindungsgemäße Ausbildung gewährleistet außerdem, daß die räumliche Zuordnung der einzelnen Spinnkomponenten auf das Genaueste eingehalten wird und beispielsweise bei einem Austausch einzelner Spinnkomponenten jederzeit reproduzierbar ist, was im Interesse eines guten Spinnergebnisses äußerst wichtig ist.Fibrous tape opening device having lid element are attached, provides the inventive design Overall, a cost-effective and extremely compact construction. The design according to the invention also ensures that the spatial assignment of the individual spinning components is adhered to very precisely and, for example, can be reproduced at any time when individual spinning components are exchanged, which is extremely important in the interest of a good spinning result.
Wie im Anspruch 3 dargelegt und vorstehend bereits angedeutet, ist das Rotorgehäuse in vorteilhafter Ausführungsform als Gußteil gefertigt, wobei als bevorzugter metallischer Werkstoff beispielsweise Aluminium Verwendung findet. Ein solches Fertigungsverfahren ermöglicht es, insbesondere Serienteile kostengünstig und paßgenau herzustellen.As set out in claim 3 and already indicated above, in an advantageous embodiment the rotor housing is manufactured as a cast part, aluminum being used, for example, as the preferred metallic material. Such a manufacturing process makes it possible, in particular, to produce serial parts inexpensively and with a precise fit.
Die im Anspruch 4 beschriebene Ausführungsform, mit einer in das Rotorgehäuse integrierten Magnetlagerstelle für den berührungslos gelagerten Spinnrotor, hat sich als äußerst vorteilhaft erwiesen.The embodiment described in claim 4, with a magnetic bearing point integrated in the rotor housing for the contactlessly mounted spinning rotor, has proven to be extremely advantageous.
Mit einer solchen Anordnung wird auf einfache Weise sichergestellt, daß der Spinnrotor bezüglich des Rotorgehäuses stets eine exakt definierte Position einnimmt.Such an arrangement ensures in a simple manner that the spinning rotor always assumes an exactly defined position with respect to the rotor housing.
Irgendwelche Justierarbeiten oder dergleichen sind bei Einbau des Spinnrotors dabei nicht notwendig.Any adjustment work or the like is not necessary when installing the spinning rotor.
Das Gehäuse des elektromagnetischen Antriebes des Spinnrotors, das auch die hintere Magnetlagerstelle für den Spinnrotor aufweist, ist über Schraubenbolzen, die die Rückwand desThe housing of the electromagnetic drive of the spinning rotor, which also has the rear magnetic bearing point for the spinning rotor, is via bolts that secure the rear wall of the
Rotorgehäuses von vorne durchfassen, am Rotorgehäuses festlegbar.Grip the rotor housing from the front, can be fixed to the rotor housing.
Die in das Rotorgehäuse integrierte vordere Magnetlagerstelle bildet gleichzeitig einen Zentrieransatz, auf dem das Gehäuse des Antriebes des Spinnrotors exakt positionierbar ist (Anspruch 5) .The front magnetic bearing point integrated in the rotor housing also forms a centering lug on which the housing the drive of the spinning rotor can be positioned exactly (claim 5).
Wie im Anspruch 6 dargelegt, ist des weiteren ein Gehäuse für die Steuerelektronik des Spinnrotorantriebes vorgesehen. Dieses Gehäuse ist mit dem Gehäuse des Spinnrotorantriebes direkt verbunden. Auch durch diese Anordnung wird die insgesamt sehr kompakte Bauweise der erfindungsgemäßen Offenend-Spinnvorrichtung unterstützt .As stated in claim 6, a housing for the control electronics of the spinning rotor drive is further provided. This housing is directly connected to the housing of the spinning rotor drive. This arrangement also supports the overall very compact design of the open-end spinning device according to the invention.
In vorteilhafter Ausführungsform sind die Träger, an denen das die Faserbandauflöseeinrichtung aufweisende Deckelelement begrenzt drehbar und abnehmbar gelagert ist, wie im Anspruch 7 dargelegt, ebenfalls als Gußteile gefertigt.In an advantageous embodiment, the carriers on which the cover element having the fiber sliver opening device is rotatably and removably supported to a limited extent, as set out in claim 7, are likewise produced as castings.
Wie vorstehend bereits im Zusammenhang mit dem Rotorgehäuse beschrieben, bietet ein solches Fertigungsverfahren dieAs already described above in connection with the rotor housing, such a manufacturing method offers the
Möglichkeit, Serienteile paßgenau und kostengünstig herzustellen.Possibility to manufacture serial parts precisely and inexpensively.
Auch die am Rotorgehäuse festlegbaren Träger bestehen vorzugsweise aus einem metallischen Werkstoff, beispielsweiseThe carriers that can be fixed on the rotor housing also preferably consist of a metallic material, for example
Aluminium.Aluminum.
Die separat gefertigten und mit Paßbohrungen versehenen Träger sind dabei über entsprechende Zentrierstifte sowie Schraubenbolzen paßgenau am Rotorgehäuse festlegbar und bilden dann mit dem Rotorgehäuse ein quasi einteiliges Bauteil mit einer bezüglich der Spinnrotorachse exakt positionierten Schwenkachse für das Deckelelement (Anspruch 8). Die im Deckelelement angeordneten Spinnkomponenten sind daher bezüglich des Spinnrotors ebenfalls stets exakt positionierbar. Die in entsprechenden Lagerstellen der Träger angeordneten Gleitbuchsen (Anspruch 9) korrespondieren, wie bekannt, mit verstellbaren Zapfen am Deckelelement und ermöglichen sowohl ein leichtes Auf- und Zuschwenken des Deckelelementes als auch bei Bedarf jederzeit ein schnelles und problemloses Auswechseln dieses Bauteils.The separately manufactured supports with fitting bores can be fixed precisely on the rotor housing using corresponding centering pins and screw bolts and then form a quasi one-piece component with the rotor housing with a pivot axis for the cover element that is exactly positioned with respect to the spinning rotor axis. The spinning components arranged in the cover element can therefore also always be positioned exactly with respect to the spinning rotor. The sliding bushes arranged in corresponding bearing locations of the carrier (claim 9) correspond, as is known, with adjustable pins on the cover element and enable the cover element to be swung open and closed easily and, if required, to quickly and easily replace this component.
Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert.The invention is explained in more detail below with reference to an embodiment shown in the drawings.
Es zeigt:It shows:
Fig. 1 eine Seitenansicht einer erfindungsgemäßen Offenend- Spinnvorrichtung,1 is a side view of an open-end spinning device according to the invention,
Fig. 2 eine Seitenansicht der gegenüberliegenden Seite der in Figur 1 dargestellten Offenend-Spinnvorrichtung,2 is a side view of the opposite side of the open-end spinning device shown in Figure 1,
Fig. 3 eine Rückansicht der Offenend-Spinnvorrichtung,3 is a rear view of the open-end spinning device,
Fig. 4 das Rotorgehäuse der erfindungsgemäßen Offenend- Spinnvorrichtung mit angeflanschten Lagerarmen.Fig. 4 shows the rotor housing of the open-end spinning device according to the invention with flanged bearing arms.
In den Figuren 1 bis 3 ist die erfindungsgemäße Offenend- Spinnvorrichtung 1 in verschiedenen Ansichten dargestellt. Die Figur 1 zeigt dabei in Blickrichtung X die linke Seite, Figur 2 in Blickrichtung X die rechte Seite und die Figur 3 die Rückseite der Offenend-Spinnvorrichtung 1.1 to 3, the open-end spinning device 1 according to the invention is shown in different views. FIG. 1 shows the left side in viewing direction X, FIG. 2 shows the right side in viewing direction X, and FIG. 3 shows the rear of the open-end spinning device 1.
Die Offenend-Spinnvorrichtung 1 weist als zentrales, tragendes Bauteil ein aus einem gut wärmeleitfähigen Metall, zum Beispiel Aluminium, gefertigtes Rotorgehäuse 2 auf, an dem über Paßstifte 16 beziehungsweise Schraubenbolzen 17 paßgenau Träger 4 festgelegt sind. Diese beispielsweise als Lagerarme ausgebildeten Träger 4 weisen endseitig jeweils eine mit Gleitbuchsen 28 ausgestattete Lagerstelle auf, die eine Schwenkachse 5 ein Deckelelement 6 bilden. Das Deckelelement 6, das das Rotorgehäuse 2 während des Spinnbetriebes verschließt, weist zu diesem Zweck eine Ringdichtung 22 auf, die an der Vorderwand des Rotorgehäuses 2 anliegt . In das Deckelelement 6 ist außerdem eine Faserbandauflöseeinrichtung 23 integriert, die, wie schematisch angedeutet, über eine vorzugsweise einzelmotorisch angetriebene Auflösewalze 7 sowie einen ebenfalls einzelmotorisch angetriebenen Faserbandeinzugszylinder 8 verfügt .The open-end spinning device 1 has, as a central, load-bearing component, a rotor housing 2 made of a highly thermally conductive metal, for example aluminum, on which Carrier 4 are precisely fitted via dowel pins 16 or screw bolts 17. These supports 4, for example designed as bearing arms, each have at the end a bearing point equipped with sliding bushes 28, which form a pivot axis 5 and a cover element 6. For this purpose, the cover element 6, which closes the rotor housing 2 during spinning operation, has an annular seal 22 which bears against the front wall of the rotor housing 2. In addition, a sliver opening device 23 is integrated in the cover element 6 and, as indicated schematically, has a opening roller 7, preferably driven by a single motor, and a sliver drawing cylinder 8, also driven by a single motor.
An der Rückseite 26 des Rotorgehäuses 2 ist außerdem dasOn the back 26 of the rotor housing 2 is also that
Gehäuse eines Antriebes 3 für den Spinnrotor 21, dessenHousing of a drive 3 for the spinning rotor 21, the
Rotortasse im unterdruckbeaufschlagbaren Rotorgehäuse 2 umläuft, festgelegt.Rotor cup rotates in the rotor housing 2 which can be pressurized.
Der einzelmotorisch angetriebene Spinnrotor 21 ist dabei überThe single-motor driven spinning rotor 21 is over
Magnetlagern 24, 25 berührungslos abgestützt.Magnetic bearings 24, 25 supported without contact.
Derartig angetriebene und gelagerte Spinnrotoren sind imSuch driven and mounted spinning rotors are in the
Prinzip bekannt und beispielsweise in der EP 0 972 868 A2 relativ ausführlich beschrieben.Known principle and described, for example, in EP 0 972 868 A2 in a relatively detailed manner.
An das Gehäuse des Spinnrotorantriebes 3 ist ein Gehäuse 14 angeschlossen, das die Steuerelektronik 15 für den Antrieb 3 aufnimmt. Die Steuerelektronik 15 sorgt dabei dafür, daß der Spinnrotor 21 stets mit vorgeschriebener Drehzahl rotiert. Das Rotorgehäuse 2 ist außerdem, wie üblich, über eine Pneumatikleitung 10 an eine (nicht dargestellte) Unterdruckquelle angeschlossen, die den beim Spinnprozeß benötigten Unterdruck bereitstellt.A housing 14 is connected to the housing of the spinning rotor drive 3 and receives the control electronics 15 for the drive 3. The control electronics 15 ensure that the spinning rotor 21 always rotates at the prescribed speed. The rotor housing 2 is also, as usual, via a pneumatic line 10 to a (not shown) Vacuum source connected, which provides the vacuum required in the spinning process.
Wie in den Figuren 2 und 3 angedeutet, ist der Spinnrotorantrieb 3 an der Rückwand 26 des Rotorgehäuses 2 angeordnet und überfaßt, wie insbesondere anhand der Einzelheit Y der Fig. 1 ersichtlich, einen Zentrieransatz 29 im Bereich der Rückwand 26 des Rotorgehäuses 2. In diesen Zentrieransatz 29 ist außerdem die vordere Magnetlagerstelle 24 für den berührungslos gelagerten Spinnrotor 21 integriert.As indicated in FIGS. 2 and 3, the spinning rotor drive 3 is arranged on the rear wall 26 of the rotor housing 2 and, as can be seen in particular from detail Y in FIG. 1, includes a centering projection 29 in the region of the rear wall 26 of the rotor housing 2 Centering approach 29, the front magnetic bearing 24 is also integrated for the contactlessly mounted spinning rotor 21.
Der während des Spinnprozesses in der Offenend- Spinnvorrichtung 1 hergestellte (nicht dargestellte) Faden wird über ein Fadenabzugsröhrchen 9 aus der Offenend- Spinnvorrichtung 1 abgezogen und anschließend, wie bekannt, mittels einer bekannten (nicht dargestellten Spulvorrichtung zu einer Kreuzspule aufgewickelt.The thread (not shown) produced during the spinning process in the open-end spinning device 1 is drawn off from the open-end spinning device 1 via a thread take-off tube 9 and then, as is known, wound up into a cheese by means of a known (not shown) winding device.
Wie aus Figur 2 weiter ersichtlich, ist am Deckelelement 6 außerdem, wie üblich, ein Faserbandverdichter 19 angeordnet, über den das (nicht dargestellte) Faserband der Faserbandauflöseeinrichtung 23 zugeführt wird.As can further be seen from FIG. 2, a sliver compactor 19 is also arranged on the cover element 6, as usual, via which the sliver (not shown) is fed to the sliver opening device 23.
Des weiteren sind in dieser Ansicht schematisch der Antrieb 18 für den Faserbandeinzugszylinder 8 sowie die Lagerkonsole 20 für die Auflösewalze 7 erkennbar.Furthermore, this view schematically shows the drive 18 for the fiber ribbon feed cylinder 8 and the bearing bracket 20 for the opening roller 7.
In Figur 3 ist eine Rückansicht der erfindungsgemäßen Offenend-Spinnvorrichtung 1 dargestellt.FIG. 3 shows a rear view of the open-end spinning device 1 according to the invention.
Wie angedeutet und vorstehend bereits erwähnt, sind an das Rotorgehäuse 2 über Paßstifte 16 und Schraubenbolzen 17 Träger 4 angeflanscht. Die Träger 5 weisen endseitig eine Schwenkachse 5 für das Deckelelement 6 auf, das das unterdruckbeaufschlagbare Rotorgehäuse 2 während des Spinnbetriebes verschließt.As indicated and already mentioned above, carrier 4 are flanged to the rotor housing 2 via dowel pins 16 and screw bolts 17. The end of the carrier 5 has a pivot axis 5 for the cover element 6, which is the rotor housing 2 which can be pressurized closes during the spinning operation.
An der Rückwand 26 des Rotorgehäuses 2 ist außerdem der Antrieb 3 für den Spinnrotor 21 erkennbar, der seinerseits mit dem Gehäuse 14 für die Steuerelektronik 15 verbunden ist.On the rear wall 26 of the rotor housing 2, the drive 3 for the spinning rotor 21 can also be seen, which in turn is connected to the housing 14 for the control electronics 15.
Unterhalb des Antriebes 3 ist die Rückwand des Deckelelementes 6 sichtbar.The rear wall of the cover element 6 is visible below the drive 3.
An dieser Rückwand des Deckelelementes 6 sind der Einzelantrieb 18 für den Faserbandeinzugszylinder 8 sowie die Lagerkonsole 20 für die als Außenläufer ausgebildete Auflösewalze 7 angeordnet.On this rear wall of the cover element 6, the individual drive 18 for the fiber ribbon feed cylinder 8 and the bearing bracket 20 for the opening roller 7 designed as an external rotor are arranged.
Die Figur 4 zeigt eine perspektivische Darstellung eines als zentrales, tragendes Bauteil ausgebildeten, vorzugsweise aus Aluminium gefertigten Rotorgehäuses 2.FIG. 4 shows a perspective illustration of a rotor housing 2 which is designed as a central, load-bearing component and is preferably made of aluminum.
Wie ersichtlich, sind an der Rückseite des Rotorgehäuse 2 in dessen Außenbereich über Paßstifte 16 beziehungsweise Schraubenbolzen 17 Träger 4 paßgenau festgelegt.As can be seen, on the rear side of the rotor housing 2, in the outer region of the support 4 are fixed by means of dowel pins 16 or screw bolts 17.
Wie weiter angedeutet, sind in die Rückwand 26 des Rotorgehäuses 2 im Bereich des Zentrieransatzes 29 außerdem Bohrungen eingelassen, in denen Schraubenbolzen 27 festlegbar sind, die den Antrieb 3 des Spinnrotors 21 am Rotorgehäuse 2 arretieren . As further indicated, bores are also made in the rear wall 26 of the rotor housing 2 in the region of the centering projection 29, in which bores 27 can be fixed, which lock the drive 3 of the spinning rotor 21 on the rotor housing 2.

Claims

Patentansprüche : Claims:
1. Offenend-Spinnvorrichtung mit einem einzelmotorisch antreibbaren Spinnrotor, dessen Rotortasse in einem unterdruckbeaufschlagbaren Rotorgehäuse umläuft, das während des Spinnprozesses durch ein Deckelelement verschließbar ist, dadurch gekennzeichnet, daß das Rotorgehäuse (2) als zentrales, am Maschinenrahmen einer Textilmaschine festlegbares Bauteil ausgebildet ist, an das sowohl der Antrieb (3) des Spinnrotors (21) als auch Träger (4) für ein eine Faserbandauflöseeinrichtung (23) aufweisendes Deckelelement (6) anschließbar sind.1.Open-end spinning device with a single-motor-driven spinning rotor, the rotor cup of which rotates in a rotor housing which can be pressurized and which can be closed by a cover element during the spinning process, characterized in that the rotor housing (2) is designed as a central component which can be fixed on the machine frame of a textile machine, to which both the drive (3) of the spinning rotor (21) and the carrier (4) for a cover element (6) having a sliver opening device (23) can be connected.
2. Offenend-Spinnvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Rotorgehäuse (2) aus einem metallischen Werkstoff mit guter Wärmeleitfähigkeit besteht.2. Open-end spinning device according to claim 1, characterized in that the rotor housing (2) consists of a metallic material with good thermal conductivity.
3. Offenend-Spinnvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Rotorgehäuse (2) als Gußteil gefertigt ist.3. Open-end spinning device according to claim 1, characterized in that the rotor housing (2) is made as a casting.
4. Offenend-Spinnvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Spinnrotor (21) berührungslos gelagert ist und eine der Magnetlagerstellen (24, 25) in das Rotorgehäuse (2) integriert ist. 4. Open-end spinning device according to claim 1, characterized in that the spinning rotor (21) is mounted without contact and one of the magnetic bearing points (24, 25) is integrated in the rotor housing (2).
5. Offenend-Spinnvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Antrieb (3) für den Spinnrotor (21) an der Rückwand (26) des Rotorgehäuses (2) festgelegt und durch Schraubenbolzen (27) gesichert ist, die durch das geöffnete Rotorgehäuse (2) zugängig sind.5. Open-end spinning device according to claim 1, characterized in that the drive (3) for the spinning rotor (21) on the rear wall (26) of the rotor housing (2) is fixed and secured by bolts (27) through the open rotor housing (2) are accessible.
6. Offenend-Spinnvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Gehäuse des Antriebes (3) des Spinnrotors (21) mechanisch mit einem Gehäuse (14) verbunden ist, das die Steuerelektronik (15) für den Antrieb (3) aufweist.6. Open-end spinning device according to claim 1, characterized in that the housing of the drive (3) of the spinning rotor (21) is mechanically connected to a housing (14) which has the control electronics (15) for the drive (3).
7. Offenend-Spinnvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Lagerarme (4) für das Deckelelement (6) als Gußteile gefertigt sind.7. Open-end spinning device according to claim 1, characterized in that the bearing arms (4) for the cover element (6) are made as castings.
8. Offenend-Spinnvorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Lagerarme (4) über Zentrierstifte (16) sowie Schraubenbolzen (17) paßgenau am Rotorgehäuse (2) festlegbar sind.8. Open-end spinning device according to claim 7, characterized in that the bearing arms (4) via centering pins (16) and screw bolts (17) can be fixed with a precise fit on the rotor housing (2).
9. Offenend-Spinnvorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß in den Lagerarmen (4) endseitig Gleitbuchsen (28) angeordnet sind, die eine Schwenkachse (5) für das lösbar angeordnete Deckelelement (6) bilden. 9. Open-end spinning device according to claim 7, characterized in that in the bearing arms (4) slide bushes (28) are arranged at the ends, which form a pivot axis (5) for the detachably arranged cover element (6).
EP04740670A 2003-09-04 2004-07-06 Open-end spinning device Expired - Lifetime EP1664401B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10340657A DE10340657A1 (en) 2003-09-04 2003-09-04 Open-end spinning device
PCT/EP2004/007341 WO2005033385A1 (en) 2003-09-04 2004-07-06 Open-end spinning device

Publications (2)

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EP1664401A1 true EP1664401A1 (en) 2006-06-07
EP1664401B1 EP1664401B1 (en) 2010-04-28

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US (1) US7377095B2 (en)
EP (1) EP1664401B1 (en)
CN (1) CN1846020B (en)
BR (1) BRPI0413874A (en)
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WO (1) WO2005033385A1 (en)

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DE102007039868B4 (en) * 2007-08-23 2020-11-05 Rieter Ingolstadt Gmbh Open-end spinning device with hinged cover element and stop component for it
DE102008042163A1 (en) 2007-09-26 2009-04-02 Rieter Ingolstadt Gmbh Open end-spinning device has rotor housing with spin rotor and bearing of motor shaft is arranged partially at side of contact surfaces assigned to feed roller
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CN115467056B (en) * 2021-06-10 2023-10-27 卓郎（江苏）纺织机械有限公司 Spinning box for open-end rotor spinning device
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Also Published As

Publication number Publication date
US7377095B2 (en) 2008-05-27
CN1846020B (en) 2011-06-29
US20070130908A1 (en) 2007-06-14
WO2005033385A1 (en) 2005-04-14
BRPI0413874A (en) 2006-10-24
CN1846020A (en) 2006-10-11
DE502004011109D1 (en) 2010-06-10
DE10340657A1 (en) 2005-03-31
EP1664401B1 (en) 2010-04-28

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