EP1344851B1 - Drive assembly for open-end spinning machines - Google Patents

Drive assembly for open-end spinning machines Download PDF

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Publication number
EP1344851B1
EP1344851B1 EP02025457A EP02025457A EP1344851B1 EP 1344851 B1 EP1344851 B1 EP 1344851B1 EP 02025457 A EP02025457 A EP 02025457A EP 02025457 A EP02025457 A EP 02025457A EP 1344851 B1 EP1344851 B1 EP 1344851B1
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EP
European Patent Office
Prior art keywords
brake
spinning
tension roller
rotor
locking lever
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
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EP02025457A
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German (de)
French (fr)
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EP1344851A3 (en
EP1344851A2 (en
Inventor
Heinz-Georg Wassenhoven
Michael Spitzer
Dieter Haaken
Harry Gatzke
Detlef Schelter
Elisabeth Klaczynski
Hans-Josef Schröder
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
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Oerlikon Textile GmbH and Co KG
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Publication of EP1344851A2 publication Critical patent/EP1344851A2/en
Publication of EP1344851A3 publication Critical patent/EP1344851A3/en
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Publication of EP1344851B1 publication Critical patent/EP1344851B1/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
    • D01H4/04—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

Definitions

  • the invention relates to a spinning device according to the preamble of claim 1.
  • Spinning machines for open-end rotor spinning machines are known by numerous publications.
  • an open-end spinning device is described with a spinning rotor, which is supported with its rotor shaft on a support disk bearing and rotates the rotor cup in a closable by a cover element, under horrbeaufschlagten rotor housing.
  • a similar spinning device is also in the DE 39 42 402 C2 described. Also in this known spinning device of the spinning rotor is rotatably mounted with its rotor shaft in two wedge-shaped gaps of a support disk bearing and the rotor shaft acted upon by a machine-tangential tangential. The tangential belt simultaneously drives all the spinning rotors on one side of the machine. On the opposite side of the wedge columns each rotor shaft is associated with a tension roller, which loads the tangential belt in the direction of the rotor shaft. The tension roller is freely rotatably mounted on an axis of a two-armed tension roller holder, which is pivotable about an axis parallel to the axis of rotation of the tension roller axis and loaded by a spring element. The tension roller holder is also equipped with a pressure linkage connected to an actuating lever, the application of which during the run-up of the spinning rotor leads to an increase of the pressing force of the tangential on the respective rotor shaft.
  • this known spinning device on a pliers-like rotor brake the gun arms are equipped end with brake pads.
  • the pliers arms are held by a bow spring or the like in the open state and can be applied via a brake linkage to the rotor shaft.
  • the rotor brake and the tension roller are connected to each other via a common operating mechanism such that when opening the spinning device, that is, when pivoting the lid member from the rotor housing, automatically lifted the tension roller against the action of the spring element resting from the tangential and the rotor brake is closed.
  • the spinning rotor is braked safely in this way to a standstill.
  • the spinners described above have proven themselves in practice and have long been in use in the textile industry in large quantities.
  • These internal forces can in rare cases lead to the spinning device is opened before the spinning rotor is, which is not dangerous for the operator.
  • the invention is therefore, starting from the above-described prior art, the object of the invention to provide a spinning device which is designed so that accidental opening of the spinning device is reliably prevented under all circumstances.
  • the embodiment of the invention has the particular advantage that a spinning device was created by a relatively minor modification of a proven in practice spinner, the cover element is positively locked, this lock can only be opened from the outside and is guaranteed after opening that the spinning rotor does not rotate anymore. That is, the inventive design ensures that even in case of incidents the spinning device is not opened unintentionally due to internal forces.
  • in the region of a cross-beam of the spin box housing means are provided by which the maximum pivot angle of the tension roller can be specified. That is, by such Wegbegrenzungsstoff prevents the tension roller in a fault above a predetermined level fold up and a lift bar and the brake and locking lever, the Spinning device positively fixed, can lift from its rest position. Furthermore, it is ensured by such Wegbegrenzungsstoff that a high-folding tensioner can not damage adjacent components of the spinning device or even itself.
  • a Wegbegrenzungsmittel can be realized in a simple manner that, as set forth in claim 3, arranged in a cross-beam of Spinnboxgeophuses LanglochausEnglishung is arranged and dimensioned so that the run in the slot recess Abhebebügel is minimized for actuating the tension roller with respect to its freedom of movement. Since the take-off bar is connected to the pivotally mounted tension pulley holder, the pivoting angle of the tension pulley can thereby be set relatively easily.
  • a limitation of the swivel angle can also be achieved in that, as described in claim 4, a special stop element is positioned in the region of the oblong hole recess.
  • a stop element is mounted for example on the connection axis of the lifting hoop / tension roller holder and summarizes with a guide pin in the slot recess. Even by such a stop element, the pivot angle of the tension roller can be effectively limited.
  • the lift-off is preferably formed in two parts and the two strap parts are connected via a non-positively acting coupling device.
  • the coupling device consists for example of a plastic part, which has resilient locking tongues.
  • the locking tongues correspond with corresponding sliding surfaces on one of the two bracket parts. Due to the shape and arrangement of the locking tongues and the associated sliding surfaces on the bracket part can be both fixed in a simple way, at which strength of a shock relative movement of the bracket parts takes place, as well as to ensure that the tensioning roller can be acted upon by the pressure increase lever.
  • a further embodiment provides that the brake and locking lever an additional lever is fixed, which has a detent for positive reception of the cover element arranged on the locking roller has (claim 11).
  • Such a design also provides a secure and simple positive locking of the cover element in its closed position.
  • FIG. 1 is shown schematically, in side view, an open-end spinning device 1.
  • the open-end spinning device 1 is shown in an operative state, that is, the rotor housing 2, in which the spinning cup 32 of a spinning rotor 4 rotates at high speed during the spinning operation, is closed by a lid member 11.
  • the rotor housing 2 is connected via a pneumatic line 3 to a (not shown) vacuum source which provides the vacuum required during spinning.
  • the spinning rotor 4 is mounted with its rotor shaft 5, as usual, in the wedge gaps of a support disk bearing 6 and is driven by a machine-long tangential belt 7, which in turn is acted upon in the region of the rotor shaft 5 by a tensioning roller 8.
  • a corresponding thrust bearing 9 for example, a permanent magnet bearing.
  • the rotor housing 2 and the storage facilities 6 and 9 are fixed to a spinning box housing 10, which in turn is attached to the base frame of the (not shown) textile machine.
  • the rotor housing 2 which in itself is open at the front, can be closed by a so-called channel plate, which is arranged in a pivotably mounted cover element 11. That is, the lid member 11 is connected via a pivot axis 12 with the spin box housing 10.
  • a sliver opening device is integrated, which, as is known, essentially consists of an opening roller circulating in an opening roller housing 13, a sliver feed cylinder 16 and an associated sliver compressor.
  • the opening roller is driven by a tangential belt 15, which abuts the drive whip 18 of the opening roller, while the drive of the sliver feed cylinder 16 via a machine-length drive shaft 20 and a corresponding worm / Schneckenradanaku 19.
  • each rotor shaft 5 is assigned a tensioning roller 8 which acts on the tangential belt 7 in the immediate vicinity of the rotor shaft 4.
  • the tension roller 8 is freely rotatably mounted on an axle 38 of a tension roller holder 39 which is pivotable about an axis 40 extending parallel to the rotor shaft 5.
  • a spring element 41 acts, preferably a leaf spring, which presses the tension roller 8 against the tangential belt 7.
  • On the tension roller holder 39 is also an Abhebebügel 22 of a pressure rod 14 is articulated via an axis 37.
  • the connecting means 27 corresponds at the same time with a special arranged on the brake and locking lever 23 guide and transmission element.
  • This guide and transmission element which is arranged at the end of the brake and locking lever 23, can have different embodiments.
  • the guide and transmission element can either, as in the example FIGS. 1 and 2 shown to be formed as a slot guide 28.
  • Figure 1A has the brake and locking lever 23 at the end as a guide and transmission element on a downwardly open fork guide 30, in which the Anschlußm'ittel 27, which connects the Abhebebügel 22 with the pressure increasing lever 43, is guided.
  • FIG. 1B shows a brake and locking lever 23, wherein the guide and transmission element is designed as a web-like extension. This web 29 is located on top of the connecting means 27.
  • the connecting means 27 forms with the guide and transmission element on the brake and locking lever 23, a device 21 which prevents transmission of forces from the lift bar 22 on the brake and locking lever 23. This means that it is avoided by the device 21 that forces can be transmitted to the brake and locking lever 23 via the take-off bar 22, which can lead to a lifting of the brake and locking lever 23 and thus to a release of the locking roller 45 of the cover element 11 could lead.
  • the rotor shaft 5 of the spinning rotor 4 is also assigned, as usual, a rotor brake 46, which is arranged below the tangential belt 7.
  • the rotor brake 46 preferably has two pivotally mounted, two-armed pliers arms 47, 48, which are pressed apart by a spreading spring.
  • the pliers arms 47, 48 have in each case at the end a brake pad 51, 52 or on the opposite side a sliding surface.
  • a roller is mounted in the region of the converging sliding surfaces, between the legs of a U-shaped brake beam 33, which is vertically displaceable with respect to the sliding surfaces and the brake pads 51, 52 of the rotor brake 46 to the rotor shaft 5 hires.
  • the rotor brake 46 and the tension roller 8 are, as known, connected to each other via a common operating mechanism such that upon opening the spinning device, that is, when pivoting back the lid member 11, the tension roller 8 is lifted against the action of the spring element 41 from the tangential 7 and at the same time the brake pads 51, 52 are applied to the rotor shaft 5.
  • the brake and locking lever 23 has a locking recess 44, in which when the cover element 11 is closed, a locking element 45 arranged on the cover element 11 is fixed in a form-fitting manner.
  • FIGS. 1 and 2 an advantageous embodiment of the invention is shown in a perspective view. Although different spinning devices are shown in the two figures, these spinning device do not differ in principle, the components with the same reference numerals are identical in their function.
  • the brake and locking lever 23 has a locking recess 44, in which, when the spinning device is closed, a locking roller 45 arranged on the cover element 11 is fixed in a form-fitting manner.
  • the brake and locking lever 23 is pivotally mounted on an axis 35 and has, for example, a slot guide 28 on the end.
  • a connecting means 27 which connects the lift-off bar 22 with the pressure-increasing lever 43.
  • the slot guide 28 of the brake and locking lever 23 forms a kind of "idle device" 21st That is, the slot guide 28 is arranged and dimensioned so that on the one hand, as in FIG. 2 indicated when opening the spinning device, the tension roller 8 is lifted off the tang 19 on the take-off bar 22 and the rotor brake 46 is actuated, on the other hand from the tensioning roller 8 but no forces on the brake and locking lever 23 can be transmitted.
  • the Abhebebügel 22 is articulated via an axis 37 to the tension roller holder 39, which in turn is pivotally mounted about an axis 40 and carries on an axis 38, the freely rotatably mounted tension roller 8.
  • the Abhebebügel 22 also extends through a Langlochaus simplifiedung 24 in a cross-beam 25 of the Spinnboxrahmens 10.
  • the Langlochausnaturalung 24 is arranged and formed so that it forms a Wegbegrenzungsstoff 17, which prevents the tension roller 8 can be raised beyond a maximum pivot angle ⁇ addition.
  • This stop element 26 is as shown FIG. 5 can be seen supported on the axis 37 of the Abhebleggels 22 and slides with a guide pin 53 in the LanglochausEnglishung 24 of the crossbar 25.
  • a guide pin 53 By appropriate arrangement of the guide pin 53 is a limitation of the maximum pivot angle ⁇ of the tension roller 8 can be realized.
  • FIG. 3 Another embodiment of a device for preventing the transmission of internal forces to the brake and locking lever 23 is in the FIG. 3 shown.
  • a clutch device 31 is realized. That is, in a two-part Abhebebügel 22 coupling bracket 49 is turned on, which connects the bracket parts 22A and 22B frictionally.
  • the upper bracket portion 22A of the lift bar 22 which is connected via the axis 37 to the tension roller holder 39, two upwardly diverging sliding surfaces 36.
  • the sliding surfaces 36 of the bracket portion 22A correspond with two resilient locking tongues 50 on the coupling bracket 49 of the coupling device 31st
  • bracket parts 22A and 22B are connected via the coupling bracket 49 made of a plastic material, for example, such that at least impact-induced forces lead to a relative displacement of the bracket parts 22A and 22B and thus to a shortening of the lift-off bracket 22.
  • the Abhebegügels 22 forces at least abruptly initiated shocks, which are on the tension roller 8 on the take-off bar 22, absorbed, that is, it is prevented that these forces are transmitted to the brake and locking lever 23.
  • Fig. 5 a further advantageous embodiment of the device according to the invention is shown.
  • an additional lever 34 is fixed to the brake and locking lever 23, which has a locking recess 44 for the positive fixing of the lid member 11 arranged locking roller 45.
  • an automatically operating piecing unit a so-called piecing carriage, positions itself at the relevant spinning station.
  • the piecing opens spinning device and usually cleans at least the spinning rotor. That is, the piecing carriage raises the brake and lock lever 23 with a corresponding manipulator (not shown). In this case, the locking recess 44 of the brake and locking lever 23 is lifted by the locking roller 45 of the cover element 11 and acted on the connecting means 27 of the lift bar 22 of the pressure rod 14 of the tension roller 8 in the sense "lifting tension roller" 8.
  • lifting the brake and locking lever 23 and the brake beam 33 of the rotor brake 46 is applied simultaneously via a Switzerlandgestnature. This means. via the brake beam 33, the rotor brake 46 is actuated and the spinning rotor 4 decelerates to a standstill.
  • the lid member 11 By means of a arranged on the piecing, so-called ⁇ ffnerarmes, which engages in the ⁇ ffner Industries 54 of the cover member 11, then the lid member 11 can be pivoted about the pivot axis 12 and thus the spinning device can be opened.
  • the piecing carriage pressurizes the pressure increasing lever 43 with a corresponding device. That is, on the pressure increasing lever 43, a force is applied, which is transmitted via the connecting means 27 on the lift bar 22 and lifts it.
  • The, as in particular from FIG. 2 can be seen, via an axle 37 connected to the tension roller holder 39
  • Abhebebügel 22 transmits a torque on the pivotable about an axis 40 tension roller holder 39, resulting in a pressing of the tension roller 8 on the tangential 7 and thus to an increase in the friction between tangential 7 and Rotor shaft 5 during startup of the spinning rotor 4 leads.

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

Description

Die Erfindung betrifft eine Spinnvorrichtung gemäß dem Oberbegriff des Anspruches 1.The invention relates to a spinning device according to the preamble of claim 1.

Spinnvorrichtungen für Offenend-Rotorspinnmaschinen sind durch zahlreiche Veröffentlichungen bekannt.
In der DE 197 08 944 A1 ist beispielsweise eine Offenend-Spinnvorrichtung mit einem Spinnrotor beschrieben, der mit seinem Rotorschaft auf einer Stützscheibenlagerung abgestützt ist und dessen Rotortasse in einem durch ein Deckelelement verschließbaren, unterdruckbeaufschlagten Rotorgehäuse rotiert.Spinning machines for open-end rotor spinning machines are known by numerous publications.
In the DE 197 08 944 A1 For example, an open-end spinning device is described with a spinning rotor, which is supported with its rotor shaft on a support disk bearing and rotates the rotor cup in a closable by a cover element, underdruckbeaufschlagten rotor housing.

Eine ähnliche Spinnvorrichtung ist auch in der DE 39 42 402 C2 beschrieben.
Auch bei dieser bekannten Spinnvorrichtung ist der Spinnrotor mit seinem Rotorschaft in zwei Keilspalten einer Stützscheibenlagerung rotierbar gelagert und der Rotorschaft durch einen maschinenlangen Tangentialriemen beaufschlagt.
Der Tangentialriemen treibt dabei gleichzeitig alle Spinnrotoren einer Maschinenseite an.
Auf der den Keilspalten gegenüberliegenden Seite ist jedem Rotorschaft eine Spannrolle zugeordnet, die den Tangentialriemen in Richtung des Rotorschaftes belastet.
Die Spannrolle ist frei drehbar auf einer Achse eines zweiarmigen Spannrollenhalters gelagert, der um eine parallel zur Rotationsachse der Spannrolle verlaufende Achse verschwenkbar und durch ein Federelement belastet ist. Der Spannrollenhalter ist außerdem über ein Druckgestänge mit einem Betätigungshebel verbunden, dessen Beaufschlagung während des Hochlaufes des Spinnrotors zu einer Erhöhung der Andrückkraft des Tangentialriemens am jeweiligen Rotorschaft führt.A similar spinning device is also in the DE 39 42 402 C2 described.
Also in this known spinning device of the spinning rotor is rotatably mounted with its rotor shaft in two wedge-shaped gaps of a support disk bearing and the rotor shaft acted upon by a machine-tangential tangential.
The tangential belt simultaneously drives all the spinning rotors on one side of the machine.
On the opposite side of the wedge columns each rotor shaft is associated with a tension roller, which loads the tangential belt in the direction of the rotor shaft.
The tension roller is freely rotatably mounted on an axis of a two-armed tension roller holder, which is pivotable about an axis parallel to the axis of rotation of the tension roller axis and loaded by a spring element. The tension roller holder is also equipped with a pressure linkage connected to an actuating lever, the application of which during the run-up of the spinning rotor leads to an increase of the pressing force of the tangential on the respective rotor shaft.

Des weiteren weist diese bekannte Spinnvorrichtung eine zangenartige Rotorbremse auf, deren Zangenarme endseitig mit Bremsbelägen ausgestattet sind. Die Zangenarme werden durch eine Bügelfeder oder dergleichen im geöffneten Zustand gehalten und können über ein Bremsgestänge an den Rotorschaft angelegt werden.
Die Rotorbremse und die Spannrolle sind dabei über einen gemeinsamen Betätigungsmechanismus derart miteinander verbunden, daß beim Öffnen der Spinnvorrichtung, das heißt, beim Abschwenken des Deckelelementes vom Rotorgehäuse, automatisch die Spannrolle gegen die Wirkung des aufliegenden Federelementes vom Tangentialriemen abgehoben und die Rotorbremse geschlossen wird.
Der Spinnrotor wird auf diese Weise sicher in den Stillstand abgebremst.Furthermore, this known spinning device on a pliers-like rotor brake, the gun arms are equipped end with brake pads. The pliers arms are held by a bow spring or the like in the open state and can be applied via a brake linkage to the rotor shaft.
The rotor brake and the tension roller are connected to each other via a common operating mechanism such that when opening the spinning device, that is, when pivoting the lid member from the rotor housing, automatically lifted the tension roller against the action of the spring element resting from the tangential and the rotor brake is closed.
The spinning rotor is braked safely in this way to a standstill.

Die vorbeschriebenen Spinnvorrichtungen haben sich in der Praxis bewährt und sind in der Textilindustrie seit langem in großer Stückzahl im Einsatz.
In seltenen Ausnahmefällen, zum Beispiel bei einem Defekt des Tangentialriemens oder eines unrund laufenden Spinnrotors, kann es allerdings vorkommen, daß die Spinnvorrichtung durch innere Kräfte, die beispielsweise zu einem schlagartigen Hochschnellen der Spannrolle führen, belastet wird.
Diese inneren Kräfte können in seltenen Fällen dazu führen, daß die Spinnvorrichtung geöffnet wird, bevor der Spinnrotor steht, was für das Bedienpersonal nicht ungefährlich ist.The spinners described above have proven themselves in practice and have long been in use in the textile industry in large quantities.
In rare exceptional cases, for example in the case of a defect of the tangential belt or of a non-circular spinning rotor, it may happen, however, that the spinning device is loaded by internal forces which, for example, lead to a sudden rocking of the tensioning roller.
These internal forces can in rare cases lead to the spinning device is opened before the spinning rotor is, which is not dangerous for the operator.

Der Erfindung liegt daher, ausgehend vom vorbeschriebenen Stand der Technik die Aufgabe zugrunde, eine Spinnvorrichtung zu schaffen, die so ausgebildet ist, daß ein unbeabsichtigtes Öffnen der Spinnvorrichtung unter allen Umständen zuverlässig verhindert wird.The invention is therefore, starting from the above-described prior art, the object of the invention to provide a spinning device which is designed so that accidental opening of the spinning device is reliably prevented under all circumstances.

Diese Aufgabe wird erfindungsgemäß durch eine Spinnvorrichtung gelöst, wie sie im Anspruch 1 beschrieben ist.This object is achieved by a 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.

Die erfindungsgemäße Ausbildung hat insbesondere den Vorteil, daß durch eine relativ geringfügige Modifikation einer in der Praxis an sich bewährten Spinnvorrichtung eine Spinnvorrichtung geschaffen wurde, deren Deckelelement formschlüssig verriegelt ist, wobei diese Verriegelung nur von außen geöffnet werden kann und nach dem Öffnen gewährleistet ist, daß der Spinnrotor nicht mehr rotiert.
Das heißt, durch die erfindungsgemäße Ausbildung ist sichergestellt, daß auch bei eventuellen Störfällen die Spinnvorrichtung nicht aufgrund innerer Kräfte ungewollt geöffnet wird.The embodiment of the invention has the particular advantage that a spinning device was created by a relatively minor modification of a proven in practice spinner, the cover element is positively locked, this lock can only be opened from the outside and is guaranteed after opening that the spinning rotor does not rotate anymore.
That is, the inventive design ensures that even in case of incidents the spinning device is not opened unintentionally due to internal forces.

In vorteilhafter Ausführungsform ist dabei beispielsweise, wie im Anspruch 2 beschrieben, im Bereich einer Quertraverse des Spinnboxgehäuses eine Einrichtung vorhanden, durch die der maximale Schwenkwinkel der Spannrolle vorgegeben werden kann. Das heißt, durch ein solches Wegbegrenzungsmittel wird verhindert, daß die Spannrolle bei einem Störfall über ein vorgegebenes Maß hochklappen und dabei über einen Abhebebügel auch den Brems- und Verriegelungshebel, der die Spinnvorrichtung formschlüssig fixiert, aus seiner Raststellung heben kann.
Des weiteren ist durch ein solches Wegbegrenzungsmittel sichergestellt, daß eine hochklappende Spannrolle weder angrenzende Bauteile der Spinnvorrichtung noch sich selbst beschädigen kann.In an advantageous embodiment, for example, as described in claim 2, in the region of a cross-beam of the spin box housing means are provided by which the maximum pivot angle of the tension roller can be specified. That is, by such Wegbegrenzungsmittel prevents the tension roller in a fault above a predetermined level fold up and a lift bar and the brake and locking lever, the Spinning device positively fixed, can lift from its rest position.
Furthermore, it is ensured by such Wegbegrenzungsmittel that a high-folding tensioner can not damage adjacent components of the spinning device or even itself.

Ein Wegbegrenzungsmittel läßt sich in einfacher Weise dadurch realisieren, daß, wie im Anspruch 3 dargelegt, eine in einer Quertraverse des Spinnboxgehäuses angeordnete Langlochausnehmung so angeordnet und dimensioniert wird, daß der in der Langlochausnehmung geführte Abhebebügel zur Betätigung der Spannrolle bezüglich seiner Bewegungsfreiheit minimiert ist. Da der Abhebebügel an den schwenkbar gelagerten Spannrollenhalter angeschlossen ist, kann dadurch relativ einfach der Schwenkwinkel der Spannrolle vorgegeben werden.A Wegbegrenzungsmittel can be realized in a simple manner that, as set forth in claim 3, arranged in a cross-beam of Spinnboxgehäuses Langlochausnehmung is arranged and dimensioned so that the run in the slot recess Abhebebügel is minimized for actuating the tension roller with respect to its freedom of movement. Since the take-off bar is connected to the pivotally mounted tension pulley holder, the pivoting angle of the tension pulley can thereby be set relatively easily.

Eine Begrenzung des Schwenkwinkels läßt sich in vorteilhafter Ausführungsform allerdings auch dadurch erreichen, daß, wie im Anspruch 4 beschrieben, im Bereich der Langlochausnehmung ein spezielles Anschlagelement positioniert wird.
Ein solches Anschlagelement ist beispielsweise auf der Anschlußachse des Anhebebügels/Spannrollenhalters gelagert und faßt mit einem Führungszapfen in die Langlochausnehmung.
Auch durch ein solches Anschlagelement kann der Schwenkwinkel der Spannrolle wirkungsvoll begrenzt werde.However, in an advantageous embodiment, a limitation of the swivel angle can also be achieved in that, as described in claim 4, a special stop element is positioned in the region of the oblong hole recess.
Such a stop element is mounted for example on the connection axis of the lifting hoop / tension roller holder and summarizes with a guide pin in the slot recess.
Even by such a stop element, the pivot angle of the tension roller can be effectively limited.

Die im Anspruch 5 beschriebene, vorteilhafte Einrichtung ermöglicht im Bedarfsfall einerseits eine sichere Ansteuerung der Spannrolle, stellt aber andererseits sicher, daß die Spinnvorrichtung nicht durch innere Kräfte geöffnet werden kann.The described in claim 5, advantageous device allows, if necessary, on the one hand a reliable control of the tension pulley, but on the other hand, ensures that the spinning device can not be opened by internal forces.

Das heißt, beim Hochlaufen des Spinnrotors im Zuge des Wiederanspinnens der Spinnvorrichtung ist es über den Druckerhöhungshebel einerseits möglich, die Anpreßkraft des Tangentialriemens an den Rotorschaft zu steigern, andererseits verhindert die beschriebene Einrichtung, daß, zum Beispiel im Falle eines Rotor- und Tangentialriemenschadens, die Spinnvorrichtung von innen her entriegelt und bei laufendem Rotor geöffnet werden kann.That is, during startup of the spinning rotor in the course of spinning the spinning device on the one hand, it is possible to increase the contact pressure of the tangential to the rotor shaft on the one hand, on the other hand prevents the device described that, for example in the case of a rotor and tangential belt damage, the Spinning device unlocked from the inside and can be opened while the rotor is running.

Eine solche Aussage trifft auch auf die in den Ansprüchen 6 und 7 aufgeführten, alternativen Ausführungsformen der vorstehend beschriebenen Einrichtung zu, wobei insbesondere die Ausführungsform gemäß Anspruch 7 hinsichtlich ihrer Fertigung sehr einfach ist.Such a statement also applies to the alternative embodiments of the device described above in claims 6 and 7, wherein in particular the embodiment according to claim 7 is very simple in terms of their production.

Anstelle der in den Ansprüchen 5 bis 7 beschriebenen Einrichtungen, die eine spezielle Ausbildung des Anlenkbereiches Druckerhöhungshebel/Brems- und Verriegelungshebel/Abhebebügel betreffen, ist auch eine Einrichtung vorstellbar, die Stöße, die zum Beispiel beim Hochschnellen einer Spannrolle auf den zugehörigen Abhebebügel kommen, absorbiert.Instead of the devices described in claims 5 to 7, which relate to a special design of the articulation pressure booster lever / brake and locking lever / lift bar, a device is also conceivable, the shocks that come, for example, when a speed of a tensioner on the associated lift bar, absorbed ,

Eine solche, wenigsten stoßartig auftretende Kräfte absorbierende und damit deren Weiterleitung auf den Brems- und Verriegelungshebel verhindernde Einrichtung ist in den Ansprüchen 8-10 beschrieben.Such, at least jerking forces absorbing and thus their forwarding to the brake and lock lever preventing device is described in the claims 8-10.

Wie aus den Ansprüchen 9 und 10 ersichtlich, ist der Abhebebügel dabei vorzugsweise zweiteilig ausgebildet und die beiden Bügelteile sind über eine kraftschlüssig arbeitende Kupplungseinrichtung verbunden.As can be seen from the claims 9 and 10, the lift-off is preferably formed in two parts and the two strap parts are connected via a non-positively acting coupling device.

Das heißt, bei stoßartig auftretenden Kräften kommt es zu einer Verkürzung des Abhebebügels, ohne daß dabei Kräfte auf den Brems- und Verriegelungshebel übertragen werden können.That is, when jerky forces occur, there is a shortening of the lift bar, without that forces can be transferred to the brake and lock lever.

Wie im Anspruch 10 dargelegt, besteht die Kupplungseinrichtung beispielsweise aus einem Kunststoffteil, das federelastische Arretierungszungen aufweist. Die Arretierungszungen korrespondieren mit entsprechenden Gleitflächen an einem der beiden Bügelteile.
Durch die Form und Anordnung der Arretierungszungen sowie der zugehörigen Gleitflächen am Bügelteil kann dabei auf einfache Weise sowohl festgesetzt werden, bei welcher Stärke eines Stoßes eine Relativbewegung der Bügelteile stattfindet, als auch sichergestellt werden, das über den Druckerhöhungshebel die Spannrolle beaufschlagt werden kann.As set forth in claim 10, the coupling device consists for example of a plastic part, which has resilient locking tongues. The locking tongues correspond with corresponding sliding surfaces on one of the two bracket parts.
Due to the shape and arrangement of the locking tongues and the associated sliding surfaces on the bracket part can be both fixed in a simple way, at which strength of a shock relative movement of the bracket parts takes place, as well as to ensure that the tensioning roller can be acted upon by the pressure increase lever.

Eine weitere Ausführungsform sieht vor, daß am Brems- und Verriegelungshebel ein Zusatzhebel festgelegt ist, der eine Rastung zur formschlüssigen Aufnahme der am Deckelelement angeordneten Verriegelungsrolle besitzt (Anspruch 11).
Auch eine solche Ausbildung stellt eine sichere und einfache formschlüssige Arretierung des Deckelelementes in seiner Schließstellung dar.A further embodiment provides that the brake and locking lever an additional lever is fixed, which has a detent for positive reception of the cover element arranged on the locking roller has (claim 11).
Such a design also provides a secure and simple positive locking of the cover element in its closed position.

Weitere Einzelheiten der Erfindung sind nachfolgend anhand von Ausführungsbeispielen erläutert.Further details of the invention are explained below with reference to embodiments.

Es zeigt:

Fig. 1
in Seitenansicht eine Offenend-Rotorspinnvorrichtung, wobei in das Druckgestänge für die Spannrolle eine Einrichtung eingeschaltet ist, die verhindert, daß über einen Abhebebügel Kräfte auf einen Brems- und Verriegelungshebel übertragen werden,
Fig. 1A
eine zweite Ausführungsform der in das Druckgestänge eingeschalteten Einrichtung,
Fig. 1B
eine weitere Ausführungsform der in das Druckgestänge eingeschalteten, im Verbindungsbereich Abhebebügel/Druckerhöhungshebel/Brems- und Verriegelungshebel angeordneten Einrichtung,
Fig. 2
schematisch, in perspektivischer Ansicht, eine geöffnete Offenend-Rotorspinnvorrichtung, mit einer in ein vergleichbares Druckgestänge eingeschalteten Einrichtung zum Absorbieren innerer Kräfte,
Fig. 3
eine alternative Ausführungsform einer solchen in das Druckgestänge einer Spannrolle, insbesondere den Abhebebügel, eingeschalteten Einrichtung,
Fig. 4
die Einrichtung gemäß Figur 3 im Detail,
Fig. 5
eine weitere alternative Ausführungsform der Erfindung.
It shows:
Fig. 1
in side view, an open-end rotor spinning device, wherein in the pressure rod for the tension roller means is turned on, which prevents forces are transmitted to a brake and locking lever via a lift-off,
Fig. 1A
A second embodiment of the device connected in the pressure rod,
Fig. 1B
a further embodiment of the device in the pressure linkage, arranged in the connection area lift lever / pressure booster lever / brake and lock lever means
Fig. 2
schematically, in perspective view, an open open-end rotor spinning device, with a switched-on in a comparable pressure rod means for absorbing internal forces,
Fig. 3
an alternative embodiment of such in the pressure rod of a tensioner, in particular the lift bar, switched-on device,
Fig. 4
the device according to FIG. 3 in detail,
Fig. 5
another alternative embodiment of the invention.

In Figur 1 ist schematisch, in Seitenansicht, eine Offenend-Spinnvorrichtung 1 dargestellt.
Die Offenend-Spinnvorrichtung 1 ist dabei in einem betriebsbereiten Zustand gezeigt, das heißt, das Rotorgehäuse 2, in dem die Spinntasse 32 eines Spinnrotors 4 während des Spinnbetriebes mit hoher Drehzahl umläuft, ist durch ein Deckelelement 11 verschlossen.
Wie bekannt, ist das Rotorgehäuse 2 dabei über eine Pneumatikleitung 3 an eine (nicht dargestellte) Unterdruckquelle angeschlossen, die den beim Spinnen benötigten Unterdruck bereitstellt.In FIG. 1 is shown schematically, in side view, an open-end spinning device 1.
The open-end spinning device 1 is shown in an operative state, that is, the rotor housing 2, in which the spinning cup 32 of a spinning rotor 4 rotates at high speed during the spinning operation, is closed by a lid member 11.
As is known, the rotor housing 2 is connected via a pneumatic line 3 to a (not shown) vacuum source which provides the vacuum required during spinning.

Der Spinnrotor 4 ist mit seinem Rotorschaft 5, wie üblich, in den Keilspalten einer Stützscheibenlagerung 6 gelagert und wird durch einen maschinenlangen Tangentialriemen 7 angetrieben, der seinerseits im Bereich des Rotorschaftes 5 durch eine Spannrolle 8 beaufschlagt wird.The spinning rotor 4 is mounted with its rotor shaft 5, as usual, in the wedge gaps of a support disk bearing 6 and is driven by a machine-long tangential belt 7, which in turn is acted upon in the region of the rotor shaft 5 by a tensioning roller 8.

In axialer Richtung ist der Spinnrotor 4 außerdem durch ein entsprechendes Axiallager 9, beispielsweise ein Permanentmagnetlager, abgestützt.
Das Rotorgehäuse 2 sowie die Lagereinrichtungen 6 und 9 sind dabei an einem Spinnboxgehäuse 10 festgelegt, das seinerseits am Grundrahmen der (nicht dargestellten) Textilmaschine befestigt ist.In the axial direction of the spinning rotor 4 is also supported by a corresponding thrust bearing 9, for example, a permanent magnet bearing.
The rotor housing 2 and the storage facilities 6 and 9 are fixed to a spinning box housing 10, which in turn is attached to the base frame of the (not shown) textile machine.

Das an sich nach vorne offene Rotorgehäuse 2 ist, wie vorstehend bereits erwähnt, durch eine sogenannte Kanalplatte, die in einem schwenkbar gelagerten Deckelelement 11 angeordnet ist, verschließbar.
Das heißt, das Deckelelement 11 ist über eine Schwenkachse 12 mit dem Spinnboxgehäuse 10 verbunden. In das Deckelelement 11 ist außerdem eine Faserbandauflöseeinrichtung integriert, die, wie bekannt, im wesentlichen aus einer in einem Auflösewalzengehäuse 13 umlaufenden Auflösewalze, einem Faserbandeinzugszylinder 16 sowie einem zugehörigen Faserbandverdichter besteht.
Wie angedeutet, wird die Auflösewalze dabei durch einen Tangentialriemen 15 angetrieben, der am Antriebswirtel 18 der Auflösewalze anliegt, während der Antrieb des Faserbandeinzugszylinders 16 über eine maschinenlange Antriebswelle 20 beziehungsweise eine entsprechende Schnecke/Schneckenradanordnung 19 erfolgt.As already mentioned above, the rotor housing 2, which in itself is open at the front, can be closed by a so-called channel plate, which is arranged in a pivotably mounted cover element 11.
That is, the lid member 11 is connected via a pivot axis 12 with the spin box housing 10. In the lid member 11th In addition, a sliver opening device is integrated, which, as is known, essentially consists of an opening roller circulating in an opening roller housing 13, a sliver feed cylinder 16 and an associated sliver compressor.
As indicated, the opening roller is driven by a tangential belt 15, which abuts the drive whip 18 of the opening roller, while the drive of the sliver feed cylinder 16 via a machine-length drive shaft 20 and a corresponding worm / Schneckenradanordnung 19.

Wie aus den Figuren weiter ersichtlich und vorstehend bereits kurz angedeutet, ist jedem Rotorschaft 5 eine Spannrolle 8 zugeordnet, die den Tangentialriemen 7 in unmittelbarer Nähe des Rotorschaftes 4 beaufschlagt.
Die Spannrolle 8 ist dabei frei drehbar auf einer Achse 38 eines Spannrollenhalters 39 gelagert, der um eine parallel zum Rotorschaft 5 verlaufende Achse 40 schwenkbar ist. Auf den Spannrollenhalter 39 wirkt ein Federelement 41, vorzugsweise eine Blattfeder, welche die Spannrolle 8 gegen den Tangentialriemen 7 drückt.
An den Spannrollenhalter 39 ist über eine Achse 37 außerdem ein Abhebebügel 22 eines Druckgestänges 14 angelenkt.
Der Abhebebügel 22, der wie in den Figuren angedeutet unterschiedliche Ausführungsformen aufweisen kann, durchgreift dabei eine Langlochausnehmung 24 in einer Quertraverse 25 des Spinnboxgehäuses 10 und ist auf seiner gegenüber liegenden Seite über ein Anschlußmittel 27 an einen sogenannten Druckerhöhungshebel 43 angeschlossen.As is further apparent from the figures and already briefly indicated above, each rotor shaft 5 is assigned a tensioning roller 8 which acts on the tangential belt 7 in the immediate vicinity of the rotor shaft 4.
The tension roller 8 is freely rotatably mounted on an axle 38 of a tension roller holder 39 which is pivotable about an axis 40 extending parallel to the rotor shaft 5. On the tension roller holder 39, a spring element 41 acts, preferably a leaf spring, which presses the tension roller 8 against the tangential belt 7.
On the tension roller holder 39 is also an Abhebebügel 22 of a pressure rod 14 is articulated via an axis 37.
The take-off bar 22, which may have different embodiments as indicated in the figures, passes through a slot recess 24 in a cross-beam 25 of the spin box housing 10 and is connected on its opposite side via a connecting means 27 to a so-called pressure increasing lever 43.

Das Anschlußmittel 27 korrespondiert dabei gleichzeitig mit einem speziellen am Brems- und Verriegelungshebel 23 angeordneten Führungs-und Übertragungselement.
Dieses Führungs-und Übertragungselement, das endseitig des Brems- und Verriegelungshebels 23 angeordnet ist, kann dabei verschiedene Ausführungsformen aufweisen.The connecting means 27 corresponds at the same time with a special arranged on the brake and locking lever 23 guide and transmission element.
This guide and transmission element, which is arranged at the end of the brake and locking lever 23, can have different embodiments.

Das heißt, das Führungs-und Übertragungselement kann entweder, wie beispielsweise in den Figuren 1 und 2 dargestellt, als Langlochführung 28 ausgebildet sein.That is, the guide and transmission element can either, as in the example FIGS. 1 and 2 shown to be formed as a slot guide 28.

Gemäß Figur 1A weist der Brems- und Verriegelungshebel 23 endseitig als Führungs-und Übertragungselement eine nach unten offene Gabelführung 30 auf, in der das Anschlußm'ittel 27, das den Abhebebügel 22 mit dem Druckerhöhungshebel 43 verbindet, geführt ist.According to Figure 1A has the brake and locking lever 23 at the end as a guide and transmission element on a downwardly open fork guide 30, in which the Anschlußm'ittel 27, which connects the Abhebebügel 22 with the pressure increasing lever 43, is guided.

Die Figur 1B zeigt einen Brems- und Verriegelungshebel 23, bei dem das Führungs-und Übertragungselement als stegartige Verlängerung ausgebildet ist. Dieser Steg 29 liegt von oben auf dem Anschlußmittel 27 auf.The FIG. 1B shows a brake and locking lever 23, wherein the guide and transmission element is designed as a web-like extension. This web 29 is located on top of the connecting means 27.

Das Anschlußmittel 27 bildet mit dem Führungs-und Übertragungselement am Brems- und Verriegelungshebel 23 eine Einrichtung 21, die eine Übertragung von Kräften vom Abhebebügel 22 auf den am Brems- und Verriegelungshebel 23 verhindert.
Das bedeutet, durch die Einrichtung 21 wird vermieden, daß über den Abhebebügel 22 Kräfte auf den Brems- und Verriegelungshebel 23 übertragen werden können, die zu einem Anheben des Brems- und Verriegelungshebels 23 und damit zu einer Freigabe der Arretierungsrolle 45 des Deckelelementes 11 führen könnten.The connecting means 27 forms with the guide and transmission element on the brake and locking lever 23, a device 21 which prevents transmission of forces from the lift bar 22 on the brake and locking lever 23.
This means that it is avoided by the device 21 that forces can be transmitted to the brake and locking lever 23 via the take-off bar 22, which can lead to a lifting of the brake and locking lever 23 and thus to a release of the locking roller 45 of the cover element 11 could lead.

Dem Rotorschaft 5 des Spinnrotors 4 ist außerdem, wie üblich, eine Rotorbremse 46 zugeordnet, die unterhalb des Tangentialriemens 7 angeordnet ist. Die Rotorbremse 46 verfügt vorzugsweise über zwei schwenkbar gelagerte, jeweils zweiarmige Zangenarme 47, 48, die über eine Spreizfeder auseinander gedrückt werden.
Die Zangenarme 47, 48 weisen dabei endseitig jeweils einen Bremsbelag 51, 52 beziehungsweise auf der gegenüberliegenden Seite eine Gleitfläche auf.
Wie bekannt und daher nicht näher dargestellt, ist im Bereich der konvergierend angeordneten Gleitflächen, zwischen den Schenkeln eines U-förmigen Bremsbalkens 33, eine Rolle gelagert, die bezüglich der Gleitflächen vertikal verlagerbar ist und dabei die Bremsbeläge 51, 52 der Rotorbremse 46 an den Rotorschaft 5 anstellt.The rotor shaft 5 of the spinning rotor 4 is also assigned, as usual, a rotor brake 46, which is arranged below the tangential belt 7. The rotor brake 46 preferably has two pivotally mounted, two-armed pliers arms 47, 48, which are pressed apart by a spreading spring.
The pliers arms 47, 48 have in each case at the end a brake pad 51, 52 or on the opposite side a sliding surface.
As is known and therefore not shown in detail, a roller is mounted in the region of the converging sliding surfaces, between the legs of a U-shaped brake beam 33, which is vertically displaceable with respect to the sliding surfaces and the brake pads 51, 52 of the rotor brake 46 to the rotor shaft 5 hires.

Die Rotorbremse 46 und die Spannrolle 8 sind, wie bekannt, über einen gemeinsamen Betätigungsmechanismus derart miteinander verbunden, daß beim Öffnen der Spinnvorrichtung, das heißt, beim Zurückschwenken des Deckelelementes 11 die Spannrolle 8 gegen die Wirkung des Federelementes 41 vom Tangentialriemen 7 abgehoben wird und gleichzeitig die Bremsbeläge 51, 52 an den Rotorschaft 5 angelegt werden.The rotor brake 46 and the tension roller 8 are, as known, connected to each other via a common operating mechanism such that upon opening the spinning device, that is, when pivoting back the lid member 11, the tension roller 8 is lifted against the action of the spring element 41 from the tangential 7 and at the same time the brake pads 51, 52 are applied to the rotor shaft 5.

Wie aus den Figuren 1-3 ersichtlich, verfügt der Brems- und Verriegelungshebel 23 über eine Riegelausnehmung 44, in der bei geschlossenem Deckelelement 11 eine am Deckelelement 11 angeordnete Arretierungsrolle 45 formschlüssig fixiert ist.Like from the Figures 1-3 can be seen, the brake and locking lever 23 has a locking recess 44, in which when the cover element 11 is closed, a locking element 45 arranged on the cover element 11 is fixed in a form-fitting manner.

In den Figuren 1 und 2 ist eine vorteilhafte Ausführungsform der Erfindung in perspektivischer Ansicht dargestellt. Wenngleich in den beiden Figuren unterschiedliche Spinnvorrichtungen dargestellt sind, unterscheiden sich diese Spinnvorrichtung vom Prinzip her nicht, das Bauteile mit gleichen Bezugszahlen sind in ihrer Funktion identisch.In the FIGS. 1 and 2 an advantageous embodiment of the invention is shown in a perspective view. Although different spinning devices are shown in the two figures, these spinning device do not differ in principle, the components with the same reference numerals are identical in their function.

Wie ersichtlich, weist der Brems- und Verriegelungshebel 23 eine Riegelausnehmung 44 auf, in der bei geschlossener Spinnvorrichtung formschlüssig eine am Deckelelement 11 angeordnete Arretierungsrolle 45 fixiert ist.
Der Brems- und Verriegelungshebel 23 ist auf einer Achse 35 schwenkbar gelagert und weist endseitig beispielsweise eine Langlochführung 28 auf.
In der Langlochführung 28 gleitet, wie vorstehend bereits kurz erwähnt, ein Anschlußmittel 27, das den Abhebebügel 22 mit dem Druckerhöhungshebel 43 verbindet.
Die Langlochführung 28 des Brems- und Verriegelungshebels 23 bildet dabei eine Art "Leerlauf-Einrichtung" 21.
Das heißt, die Langlochführung 28 ist so angeordnet und dimensioniert, daß einerseits, wie in Figur 2 angedeutet, beim Öffnen der Spinnvorrichtung die Spannrolle 8 über den Abhebebügel 22 zuverlässig vom Tangentialriemen 7 abgehoben und die Rotorbremse 46 betätigt wird, andererseits von der Spannrolle 8 aus jedoch keine Kräfte auf den Brems- und Verriegelungshebel 23 übertragen werden können.As can be seen, the brake and locking lever 23 has a locking recess 44, in which, when the spinning device is closed, a locking roller 45 arranged on the cover element 11 is fixed in a form-fitting manner.
The brake and locking lever 23 is pivotally mounted on an axis 35 and has, for example, a slot guide 28 on the end.
In the slot guide 28 slides, as already briefly mentioned above, a connecting means 27 which connects the lift-off bar 22 with the pressure-increasing lever 43.
The slot guide 28 of the brake and locking lever 23 forms a kind of "idle device" 21st
That is, the slot guide 28 is arranged and dimensioned so that on the one hand, as in FIG. 2 indicated when opening the spinning device, the tension roller 8 is lifted off the tang 19 on the take-off bar 22 and the rotor brake 46 is actuated, on the other hand from the tensioning roller 8 but no forces on the brake and locking lever 23 can be transmitted.

Wie ersichtlich, ist der Abhebebügel 22 über eine Achse 37 an den Spannrollenhalter 39 angelenkt, der seinerseits um eine Achse 40 schwenkbeweglich gelagert ist und auf einer Achse 38 die frei drehbar gelagerte Spannrolle 8 trägt.As can be seen, the Abhebebügel 22 is articulated via an axis 37 to the tension roller holder 39, which in turn is pivotally mounted about an axis 40 and carries on an axis 38, the freely rotatably mounted tension roller 8.

Der Abhebebügel 22 durchfaßt außerdem eine Langlochausnehmung 24 in einer Quertraverse 25 des Spinnboxrahmens 10. Die Langlochausnehmung 24 ist dabei so angeordnet und ausgebildet, daß sie ein Wegbegrenzungsmittel 17 bildet, das verhindert, daß die Spannrolle 8 über einen maximalen Schwenkwinkel α hinaus angehoben werden kann.The Abhebebügel 22 also extends through a Langlochausnehmung 24 in a cross-beam 25 of the Spinnboxrahmens 10. The Langlochausnehmung 24 is arranged and formed so that it forms a Wegbegrenzungsmittel 17, which prevents the tension roller 8 can be raised beyond a maximum pivot angle α addition.

Als Wegbegrenzungsmittel 17 kann auch ein Anschlagelement 26 vorgesehen werden. Dieses Anschlagelement 26 ist, wie aus Figur 5 ersichtlich, auf der Achse 37 des Abhebebügels 22 gelagert und gleitet mit einem Führungszapfen 53 in der Langlochausnehmung 24 der Quertraverse 25. Durch entsprechende Anordnung des Führungszapfens 53 ist auch hier eine Begrenzung des maximalen Schwenkwinkels α der Spannrolle 8 realisierbar.As a travel limiting means 17 and a stop element 26 may be provided. This stop element 26 is as shown FIG. 5 can be seen supported on the axis 37 of the Abhebleggels 22 and slides with a guide pin 53 in the Langlochausnehmung 24 of the crossbar 25. By appropriate arrangement of the guide pin 53 is a limitation of the maximum pivot angle α of the tension roller 8 can be realized.

Eine weitere Ausführungsform einer Einrichtung zur Verhinderung der Übertragung innerer Kräfte auf den Brems- und Verriegelungshebel 23 ist in der Figur 3 dargestellt.
Hier ist anstelle einer "Leerlauf-Einrichtung" 21 eine Kupplungseinrichtung 31 verwirklicht.
Das heißt, in einen zweiteiligen Abhebebügel 22 ist Kupplungsklammer 49 eingeschaltet, die die Bügelteile 22A und 22B kraftschlüssig verbindet.Another embodiment of a device for preventing the transmission of internal forces to the brake and locking lever 23 is in the FIG. 3 shown.
Here, instead of an "idle device" 21, a clutch device 31 is realized.
That is, in a two-part Abhebebügel 22 coupling bracket 49 is turned on, which connects the bracket parts 22A and 22B frictionally.

Wie insbesondere aus Figur 4 ersichtlich, weist das obere Bügelteil 22A des Abhebebügels 22, das über die Achse 37 an den Spannrollenhalter 39 angeschlossen ist, zwei nach oben divergierend verlaufende Gleitflächen 36 auf.
Die Gleitflächen 36 des Bügelteils 22A korrespondieren mit zwei federelastische Arretierungszungen 50 an der Kupplungsklammer 49 der Kupplungseinrichtung 31.As in particular from FIG. 4 can be seen, the upper bracket portion 22A of the lift bar 22, which is connected via the axis 37 to the tension roller holder 39, two upwardly diverging sliding surfaces 36.
The sliding surfaces 36 of the bracket portion 22A correspond with two resilient locking tongues 50 on the coupling bracket 49 of the coupling device 31st

Das heißt, die Bügelteile 22A und 22B sind über die zum Beispiel aus einem Kunststoffmaterial gefertigte Kupplungsklammer 49 derart verbunden, daß zumindest stoßartig eingeleitete Kräfte zu einer Relativverschiebung der Bügelteile 22A und 22B und damit zu einem Verkürzen des Abhebebügels 22 führen.
Durch dieses Verkürzen des Abhebebügels 22 werden Kräfte, zumindest schlagartig eingeleitete Stöße, die über die Spannrolle 8 auf den Abhebebügel 22 gelangt sind, absorbiert, das heißt, es wird verhindert, daß diese Kräfte auf den Bremsund Verriegelungshebel 23 übertragen werden.That is, the bracket parts 22A and 22B are connected via the coupling bracket 49 made of a plastic material, for example, such that at least impact-induced forces lead to a relative displacement of the bracket parts 22A and 22B and thus to a shortening of the lift-off bracket 22.
By this shortening of the Abhebegügels 22 forces, at least abruptly initiated shocks, which are on the tension roller 8 on the take-off bar 22, absorbed, that is, it is prevented that these forces are transmitted to the brake and locking lever 23.

In Fig. 5 ist eine weitere vorteilhafte Ausführungsform der erfindungsgemäßen Einrichtung dargestellt.
Bei dieser Ausführungsform ist am Brems- und Verriegelungshebel 23 ein Zusatzhebel 34 festgelegt, der eine Riegelausnehmung 44 zum formschlüssigen Fixieren der am Deckelelement 11 angeordneten Arretierungsrolle 45 aufweist.In Fig. 5 a further advantageous embodiment of the device according to the invention is shown.
In this embodiment, an additional lever 34 is fixed to the brake and locking lever 23, which has a locking recess 44 for the positive fixing of the lid member 11 arranged locking roller 45.

Funktion der erfindungsgemäßen Einrichtung: (Erläutert am Ausführungsbeispiel gemäß Figur 1 und 2)Function of the device according to the invention: (Explains the embodiment according to FIGS. 1 and 2)

Wenn es während des Spinnprozesses an einer der Offenend-Spinnvorrichtungen zu einer Spinnunterbrechung, beispielsweise in Folge eines Fadenbruches, kommt, positioniert sich ein selbsttätig arbeitendes Anspinnaggregat, ein sogenannter Anspinnwagen, an der betreffenden Spinnstelle.If, during the spinning process at one of the open-end spinning devices, a spinning interruption occurs, for example as a result of a thread break, an automatically operating piecing unit, a so-called piecing carriage, positions itself at the relevant spinning station.

Der Anspinnwagen öffnet Spinnvorrichtung und reinigt in der Regel zumindest den Spinnrotor.
Das heißt, der Anspinnwagen hebt mit einem entsprechenden (nicht dargestellten) Manipulator den Brems- und Verriegelungshebel 23 an. Dabei wird die Riegelausnehmung 44 des Brems- und Verriegelungshebels 23 von der Arretierungsrolle 45 des Deckelelementes 11 gehoben und über das Anschlußmittel 27 der Abhebebügel 22 des Druckgestänges 14 der Spannrolle 8 im Sinne "Abheben Spannrolle" 8 beaufschlagt. Beim Anheben des Brems- und Verriegelungshebels 23 wird gleichzeitig über ein Zuggestänge auch der Bremsbalken 33 der Rotorbremse 46 beaufschlagt.
Das heißt. über den Bremsbalken 33 wird die Rotorbremse 46 betätigt und der Spinnrotor 4 in den Stillstand abbremst.The piecing opens spinning device and usually cleans at least the spinning rotor.
That is, the piecing carriage raises the brake and lock lever 23 with a corresponding manipulator (not shown). In this case, the locking recess 44 of the brake and locking lever 23 is lifted by the locking roller 45 of the cover element 11 and acted on the connecting means 27 of the lift bar 22 of the pressure rod 14 of the tension roller 8 in the sense "lifting tension roller" 8. When lifting the brake and locking lever 23 and the brake beam 33 of the rotor brake 46 is applied simultaneously via a Zuggestänge.
This means. via the brake beam 33, the rotor brake 46 is actuated and the spinning rotor 4 decelerates to a standstill.

Mittels eines am Anspinnwagen angeordneten, sogenannten Öffnerarmes, der in das Öffnerstück 54 des Deckelelementes 11 eingreift, kann dann das Deckelelement 11 um die Schwenkachse 12 geschwenkt und damit die Spinnvorrichtung geöffnet werden.By means of a arranged on the piecing, so-called Öffnerarmes, which engages in the Öffnerstück 54 of the cover member 11, then the lid member 11 can be pivoted about the pivot axis 12 and thus the spinning device can be opened.

Wenn nach dem Anspinnprozeß, der bekannt ist und daher nicht näher erläutert wird, die Spinnstelle wieder auf Betriebsdrehzahl hochbeschleunigt werden soll, beaufschlagt der Anspinnwagen mit einer entsprechenden Einrichtung den Druckerhöhungshebel 43.
Das heißt, auf den Druckerhöhungshebel 43 wird eine Kraft ausgeübt, die über das Anschlußmittel 27 auf den Abhebebügel 22 übertragen wird und diesen anhebt.
Der, wie insbesondere aus Figur 2 ersichtlich, über eine Achse 37 an den Spannrollenhalter 39 angeschlossene Abhebebügel 22 überträgt dabei ein Drehmoment auf den um eine Achse 40 schwenkbar gelagerten Spannrollenhalter 39, was zu einem Anpressen der Spannrolle 8 auf den Tangentialriemen 7 und damit zu einer Erhöhung der Reibung zwischen Tangentialriemen 7 und Rotorschaft 5 während des Hochlaufens des Spinnrotors 4 führt.If, after the piecing process, which is known and therefore not explained in more detail, the spinning unit is to be accelerated back up to operating speed, the piecing carriage pressurizes the pressure increasing lever 43 with a corresponding device.
That is, on the pressure increasing lever 43, a force is applied, which is transmitted via the connecting means 27 on the lift bar 22 and lifts it.
The, as in particular from FIG. 2 can be seen, via an axle 37 connected to the tension roller holder 39 Abhebebügel 22 transmits a torque on the pivotable about an axis 40 tension roller holder 39, resulting in a pressing of the tension roller 8 on the tangential 7 and thus to an increase in the friction between tangential 7 and Rotor shaft 5 during startup of the spinning rotor 4 leads.

Sollte es während des Spinnprozesses zu einem gravierenden Störfall kommen, insbesondere zu einem Ereignis, das dazu führt, daß die Spannrolle 8 schlagartig nach oben beschleunigt wird, verhindern die Einrichtung 17, 21, 31 daß Kräfte auf den Brems- und Verriegelungshebel 23 übertragen werden können.
Das heißt, durch die erfindungsgemäße Einrichtung 17, 21, 31 ist sichergestellt, daß das Deckelelementes 11 der Spinnvorrichtung 1 unter allen Umständen formschlüssig verriegelt bleibt und nicht durch innere Kräfte geöffnet werden kann.Should it come to a serious accident during the spinning process, in particular to an event that causes the tension roller 8 is accelerated abruptly up, prevent the device 17, 21, 31 that forces on the brake and locking lever 23 can be transmitted ,
That is, by means of the device 17, 21, 31 according to the invention it is ensured that the cover element 11 of the spinning device 1 remains positively locked under all circumstances and can not be opened by internal forces.

Claims (11)

  1. A spinning device comprising a spinning box housing which can be secured to a base frame of a textile machine, a spinning rotor (4), the spinning cup (32) of which rotates during the spinning process at high speed in a rotor housing that can be closed by a cover element (11) and is under vacuum pressure, and the rotor shaft (5) of which is supported in bearing nips of a support disc bearing (6), a rotating tangential belt (7) acting on the rotor shaft (5), a pivotably mounted tension roller (8) pressurised by a push rod, and a rotor brake (46) controllable by a brake rod, wherein the push rod of the tension roller (8) and the brake rod of the rotor brake (46) are connected so that upon opening the spinning box the tension roller is lifted from the tangential belt automatically and the rotor brake is applied to the rotor shaft,
    characterised in that
    in the region of a braking and locking lever (23) a locking recess (44) is arranged which corresponds with a locking roller (45) arranged on the cover element (11), and in that in the region of the push rod (14) a device (17, 21, 31) is provided, which is designed so that at least shock-like forces acting on the tension roller (8) are absorbed and are thus prevented from transferring to the braking and locking lever (23).
  2. The spinning device according to claim 1, characterised in that in the region of a cross arm of (25) of the spinning box housing (10) a travel limitation means (17) is provided, which limits the maximum pivot angle (a) of the tension roller (8).
  3. The spinning device according to claim 2, characterised in that the travel limitation means (17) is formed by an elongated hole recess (24) arranged in the cross arm (25), the arrangement and length of which are selected so that by means of a lifting stirrup (22) of the tension roller (8) guided in the elongated hole recess (24) the pivot angle (a) of the tension roller is limited.
  4. The spinning device according to claim 2, characterised in that the travel limitation means (17) is formed by a detent element (26) mounted on a shaft (37) of the lifting stirrup (22) and is guided by a guide pin (52) in the elongated hole recess (24) of the cross arm (25) to limit the pivot angle (a) of the tension roller (8).
  5. The spinning device according to claim 1, characterised in that the lifting stirrup (22) of the tension roller (8), joined via a connecting means (27) to a pressure increasing lever (43), is connected via a device (21) having an elongated hole guide (28) to the brake and locking lever (23), wherein the arrangement and length of the elongated hole guide (28) arranged on the brake and locking lever (23) is selected so that no forces are transmitted to the brake and locking lever (23) from the tension roller (8).
  6. The spinning device according to claim 1, characterised in that the device (21) comprises a fork-like guide (30) which is open at the bottom and arranged on the brake and locking lever (23), in which the connecting means (27) are guided.
  7. The spinning device according to claim 1, characterised in that the device (21) comprises a web (29) arranged on the back of the brake and locking lever (23) which lies on the connecting means (27).
  8. The spinning device according to claim 1, characterised in that a device (31) is inserted into the lifting stirrup (22) allowing pressure to be applied to the tension roller (8) via the pressure increasing lever (43), but compensating in opposite direction the transmission at least of shock-like forces to the brake and locking lever (23).
  9. The spinning device according to claim 7, characterised in that the lifting stirrup (22) consists of two stirrup elements (22A, 22B) connected via a non-positively operating coupling device (31) so that a shortening of the lifting stirrup (22) is possible.
  10. The spinning device according to claim 8, characterised in that the coupling device (31) comprises at least one resilient arresting tongue (50), which corresponds with a corresponding sliding face (49) on one of the stirrup elements (22A or 22B).
  11. The spinning device according to claim 1, characterised in that an additional lever (34) with a locking recess (44) for mounting the locking roller (45) arranged on the cover element (11) in a form-closed manner is fixed onto the brake and locking lever (23).
EP02025457A 2002-03-16 2002-11-15 Drive assembly for open-end spinning machines Expired - Lifetime EP1344851B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10211817A DE10211817A1 (en) 2002-03-16 2002-03-16 spinning device
DE10211817 2002-03-16

Publications (3)

Publication Number Publication Date
EP1344851A2 EP1344851A2 (en) 2003-09-17
EP1344851A3 EP1344851A3 (en) 2004-01-14
EP1344851B1 true EP1344851B1 (en) 2008-04-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02025457A Expired - Lifetime EP1344851B1 (en) 2002-03-16 2002-11-15 Drive assembly for open-end spinning machines

Country Status (4)

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US (1) US6854256B2 (en)
EP (1) EP1344851B1 (en)
CN (1) CN1445395A (en)
DE (2) DE10211817A1 (en)

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DE10141967B4 (en) * 2001-08-21 2011-06-22 Rieter Ingolstadt GmbH, 85055 Apparatus for open-end rotor spinning
SG121818A1 (en) * 2002-11-12 2006-05-26 Asml Netherlands Bv Lithographic apparatus and device manufacturing method
DE102004029020A1 (en) * 2004-06-16 2005-12-29 Saurer Gmbh & Co. Kg Method and apparatus for operating an open-end rotor spinning device
CN101191259B (en) * 2006-11-29 2011-05-11 立达英戈尔斯塔特纺织机制造公司 Open type spinning equipment
IT1393534B1 (en) * 2009-03-26 2012-04-27 Savio Macchine Tessili Spa OPEN-END SPIN ROTOR INDIVIDUAL OPERATION DEVICE
CN101899731B (en) * 2009-05-27 2012-03-21 浙江日发纺织机械有限公司 Control mechanism for delay start of spinning device rotor
CH704443A1 (en) * 2011-02-01 2012-08-15 Rieter Ag Maschf Device for fastening a flexible clothing.
CN108588916B (en) * 2018-05-16 2021-04-27 东华大学 Negative pressure air port yarn suction operation device of rotor spinning machine
CN114436059B (en) * 2021-12-31 2023-08-29 山东宏业纺织股份有限公司 Full-automatic tail yarn processing apparatus

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Also Published As

Publication number Publication date
CN1445395A (en) 2003-10-01
US6854256B2 (en) 2005-02-15
DE50212063D1 (en) 2008-05-21
EP1344851A3 (en) 2004-01-14
US20040000133A1 (en) 2004-01-01
EP1344851A2 (en) 2003-09-17
DE10211817A1 (en) 2003-09-25

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