EP3276056B1 - Cleaning device for cleaning a rotor plate of a spinning rotor - Google Patents

Cleaning device for cleaning a rotor plate of a spinning rotor Download PDF

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Publication number
EP3276056B1
EP3276056B1 EP17182001.2A EP17182001A EP3276056B1 EP 3276056 B1 EP3276056 B1 EP 3276056B1 EP 17182001 A EP17182001 A EP 17182001A EP 3276056 B1 EP3276056 B1 EP 3276056B1
Authority
EP
European Patent Office
Prior art keywords
cleaning
cleaning head
rotor
spinning rotor
receptacle
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.)
Active
Application number
EP17182001.2A
Other languages
German (de)
French (fr)
Other versions
EP3276056A1 (en
Inventor
Frank Baier
Adalbert Stephan
Harald Widner
Christian Kettner
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP3276056A1 publication Critical patent/EP3276056A1/en
Application granted granted Critical
Publication of EP3276056B1 publication Critical patent/EP3276056B1/en
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Classifications

    • B08B1/165—
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H11/00—Arrangements for confining or removing dust, fly or the like
    • D01H11/005—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices
    • 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
    • D01H4/22—Cleaning of running surfaces
    • D01H4/24—Cleaning of running surfaces in rotor spinning
    • B08B1/20—
    • B08B1/30—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B08B5/023—Cleaning travelling work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • 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
    • D01H4/22—Cleaning of running surfaces

Definitions

  • the present invention relates to a cleaning device for cleaning a rotor plate of a spinning rotor.
  • the cleaning device has a cleaning head, which has at least one cleaning element for cleaning the spinning rotor, and a receptacle in which the cleaning head is mounted and which can be advanced to the spinning rotor for cleaning.
  • the cleaning head has at least one bearing area, the longitudinal direction of which defines an axial direction of the cleaning head.
  • the DE 37 15 934 A1 describes a cleaning device which has a cleaning head with an extendable scraper as a cleaning element.
  • the cleaning head is arranged on a movably mounted arm so that it can be fed to the spinning rotor. After the cleaning head has been brought to the spinning rotor, the scraper is then extended by means of a piston that can be acted upon by compressed air so that it can reach the rotor groove.
  • a cleaning device in which a blow head is provided in a cleaning head as the cleaning element. After the cleaning device has been fed to the spinning rotor, the blow head is extended by means of a piston and thereby positioned in relation to the rotor groove. After cleaning, the blow head is reset by means of spring force.
  • the EP 1 201 800 A1 a cleaning head which can be fed to a spinning rotor and on which a scraper is arranged such that it can be extended.
  • the scraper can be arranged axially displaceably on the cleaning head.
  • a stepper motor or another linear drive can be used to the Moving the scraper.
  • a cleaning device which has a cleaning head with a scraper as a cleaning element.
  • the cleaning head can be advanced to the spinning rotor by means of a feed unit, so that the cleaning element can get into the interior of the spinning rotor and can clean it on its inside. Since, in particular, the rotor groove of the spinning rotor requires intensive cleaning, it is always essential in such cleaning devices that they are positioned comparatively precisely in relation to the rotor groove during cleaning.
  • the cleaning head of the DE 103 14 936 A1 therefore has a stop element, by means of which the cleaning head makes contact with the spinning rotor during feed and is thereby positioned in the axial direction with respect to the spinning rotor. However, for various reasons, the cleaning head may be incorrectly positioned in relation to the spinning rotor.
  • the object of the present invention is therefore to propose a cleaning device which enables the cleaning device to be precisely positioned in relation to the spinning rotor in a simple manner.
  • the proposed cleaning device for cleaning a rotor plate of a spinning rotor has a cleaning head which has at least one cleaning element for cleaning the spinning rotor, and a receptacle in which the cleaning head is mounted and which can be delivered to the spinning rotor for cleaning.
  • the feed of the receptacle to the spinning rotor can take place by means of a feed unit which, for example, has a pneumatic cylinder, a linear drive or some other drive may have.
  • the cleaning head has at least one bearing area, in particular a cylindrical bearing area, the longitudinal direction of which defines an axial direction of the cleaning head.
  • the longitudinal direction of the storage area is understood to mean the direction of the greatest longitudinal extent of the storage area.
  • the longitudinal direction is understood to mean the direction of a longitudinal axis of the cylinder.
  • the cylindrical area can be designed as a circular cylinder or, in the sense of a mathematical definition of the term “cylinder”, be based on any other base area that was extruded along a guide curve.
  • the direction of the guide curve thus defines the longitudinal axis of the cylinder.
  • a floating bearing is understood to mean a bearing in which the cleaning head is freely movable in both axial directions and is therefore not fixed in the axial direction and also not acted upon in any other way, for example by spring force.
  • the cleaning head As a result of this freely floating mounting, it is now possible for the cleaning head to automatically and automatically adjust itself correctly in the axial direction with respect to the spinning rotor when the cleaning device is fed to the spinning rotor. In particular, this makes it possible to align the cleaning element exactly with respect to the rotor groove. Due to the free mobility in both axial directions, correct alignment or fine adjustment of the cleaning element or the cleaning head is possible both when the cleaning device or the receptacle is fed too close to the spinning rotor by means of the feed unit, and when the feed unit the Cleaning device positioned too far from the spinning rotor.
  • a play of the cleaning head in the axial direction is at least 2 mm, preferably at least 3 mm and particularly preferably at least 4 mm. It has been shown that play of this order of magnitude is sufficient to compensate for any inaccurate positioning of the receptacle by the feed unit or to achieve fine adjustment of the cleaning head by means of the free axial mobility.
  • the at least one cleaning element is a scraper, which can be extended, in particular pivoted about a scraper axis, and is mounted on the cleaning head.
  • the scraper can be extended, for example, by applying compressed air via a piston.
  • the cleaning head has an air supply and the at least one cleaning element can be actuated by means of compressed air.
  • the air duct or the compressed air for actuating the cleaning element can advantageously also serve to move the cleaning head relative to the receptacle.
  • the cleaning head By extending the at least one scraper, the cleaning head can be positioned in the axial direction in relation to a rotor groove of the spinning rotor to be cleaned.
  • the scraper first hits a certain point on the rotor base or the rotor slide wall due to the infeed by the infeed unit and slides by itself due to the incline of the rotor base or the rotor slide wall and due to the increasing diameter in the direction of the rotor groove during the further extension into the rotor groove.
  • the cleaning head has an air supply and the at least one cleaning element can be actuated by means of compressed air.
  • the at least one cleaning element is a blow hole to which compressed air can be applied via the air supply to the cleaning head.
  • both a scraper or some other mechanical cleaning element and a blow hole, possibly also several blow holes, are arranged on the cleaning head.
  • the cleaning head by applying compressed air to the blow hole, the cleaning head can be positioned in the axial direction with respect to the spinning rotor to be cleaned, in particular with respect to a rotor groove of the spinning rotor.
  • the cleaning head has a stop by means of which it can be positioned in the axial direction with respect to the spinning rotor to be cleaned, in particular with respect to a rotor groove of the spinning rotor to be cleaned.
  • a very precise alignment of the cleaning head with respect to the spinning rotor can thus also be achieved in this case.
  • the receptacle has an air chamber which is connected to the air supply through at least one overflow opening. Compressed air can be applied to the air chamber via the overflow opening, thereby moving the cleaning head in the axial direction.
  • the air chamber has an exhaust air opening to which a shut-off valve is preferably assigned.
  • the cleaning head can thus optionally be moved by means of compressed air be made possible or prevented.
  • preventing a movement of the cleaning head can be advantageous if a further cleaning element is to be used, which is positioned in a different way with respect to the spinning rotor or is delivered to it.
  • the further cleaning element can also be arranged on the cleaning head.
  • a lockable exhaust air opening can also be advantageous in order to be able to equip the cleaning device with different types of cleaning heads.
  • the cleaning head can have both one or more scrapers and one or more blower nozzles as cleaning elements.
  • Figure 1 shows a cleaning device 1 for cleaning a rotor disk 2, a spinning rotor 3.
  • the spinning rotor 3 has a rotor shaft 13 to which the rotor disk 2 is fixedly or detachably attached.
  • the soiling can vary depending on the fiber material used or the degree of cleaning of the fiber material and can also contain strong buildup on the inside of the spinning rotor 3.
  • the rotor groove 8 is subject to considerable contamination, which has a disadvantageous effect on the further spinning process.
  • the spinning rotors 3 must therefore be cleaned regularly, especially in the area of the rotor groove 8, for which the cleaning device 1 is provided.
  • the cleaning device 1 contains a receptacle 6 which can be fed to the spinning rotor 3 by means of a feed unit 9, which is only indicated here, and on which a cleaning head 4 for cleaning the spinning rotor 3 is arranged.
  • the cleaning device 1 can be arranged, for example, by means of the feed unit 9 on a maintenance device that can be moved along spinning positions of an open-end rotor spinning machine, wherein the feed unit 9 can contain a pneumatic cylinder, an electric linear drive or some other drive in order to accommodate the cleaning head 4 with the spinning rotor 3 to send.
  • the maintenance device like the open-end rotor spinning device, is not shown.
  • the receptacle of the present cleaning device surrounds the spinning rotor 3 in the shape of a pot and can contain a rotary drive by means of which the spinning rotor 3 can be driven during its cleaning.
  • the spinning rotor 3 it is likewise also possible for the spinning rotor 3 to be attached to the open-end rotor spinning device by means of one arranged drive is set in rotation.
  • the present cleaning head 4 has two scrapers 5 a as cleaning elements 5, which are mounted on the cleaning head 4 so as to be pivotable about a scraper axis SA.
  • the swiveling out of the scrapers 5a which can be actuated by means of a piston 14, for example, is indicated by a dot-dash line.
  • the piston 14 is moved to the right, as indicated by the arrow.
  • the piston 14 can be actuated pneumatically, for which the cleaning head 4 has an air supply 10 (see Fig. Figures 4-6 ) and can be pressurized with compressed air.
  • the extension of the scrapers 5a can also take place by means of a motor or in some other way.
  • the cleaning head 4 has at least one bearing area 7, which in the present case is cylindrical due to its outer diameter on the area facing the receptacle 6 and which defines an axial direction AR of the cleaning head 4 via its longitudinal axis, here the central longitudinal axis.
  • the cleaning head 4 can of course also have further or other cylindrical areas or bearing areas 7 which define the axial direction AR.
  • the cleaning head 4 is now floatingly mounted in the axial direction AR on the receptacle 6 and has axial play.
  • the cleaning head 4 is shown in a central position in which it has play in both axial directions AR with respect to the receptacle 6, as shown by the two distances x.
  • the cleaning head 4 itself to be mounted firmly, ie without play, on the receptacle 6 and for a distance x to be provided between the scraper or scrapers 5a and the cleaning head 4 .
  • Figure 2 shows the cleaning device 1 of FIG Figure 1 in a second position in which the cleaning head 4 has already been fed to the spinning rotor 3 by means of the receptacle 6 and the feed unit 9.
  • the problem often arises that, due to setting errors of the cleaning device 1 in relation to the delivery unit 9 or the movable maintenance device, due to positional deviations of the maintenance device in relation to the spinning station, due to play between the various components or due to other causes, the positioning of the cleaning device 1 cannot take place exactly in the axial direction with respect to the spinning rotor 3, so that the cleaning elements 5 often cannot reach the rotor groove 8 exactly. Reliable cleaning of the rotor groove 8 is then no longer possible.
  • the cleaning device 1 is positioned too far away from the spinning rotor 3 in the axial direction AR, for example.
  • the scrapers 5 a When the scrapers 5 a are extended, they therefore do not get into the rotor groove 8, but lie against the rotor slide wall 17 of the rotor disk 2.
  • the cleaning head 4 due to the further loading of the piston 14 or some other actuating element, for example a motor, and the increasing diameter in the direction of the rotor groove 8, the cleaning head 4 is now moved in the axial direction AR with respect to the receptacle 6, removing at least part of the axial play ( see arrows).
  • FIG 3 Another situation of the cleaning device 1 is shown, in which the cleaning device 1 has already been delivered to the spinning rotor 3 and the cleaning head 4 has already automatically positioned itself correctly in relation to the rotor groove 8.
  • the cleaning device 1 has been positioned too close to the spinning rotor 3, so that the scrapers 5a initially hit the rotor base 18 of the spinning rotor 3. Due to the further loading of the piston 14 or the actuating element of the scrapers 5a, the scrapers 5a slid along the incline of the rotor base 18 in the direction of the larger diameter of the rotor groove 8, with the play between the cleaning head 4 and the feed unit 6 on the one hand Side of the cleaning head 4 was at least partially canceled.
  • the cleaning head 4 is shown in its completely retracted position with respect to the receptacle 6, so that there is now a distance 2x between the cleaning head 4 and the receptacle 6 in the left-hand area of the figure.
  • the cleaning head 4 does not have to be displaced by the complete distance x or 2x, but various intermediate positions are also possible depending on the distance between the cleaning head 4 and the spinning rotor 3 after the infeed.
  • Figure 4 shows another embodiment of a cleaning device 1, in which the cleaning element 5 is not formed by a scraper 5a, but by a blow hole 5b.
  • the cleaning head 4 here has an air duct 10, via which compressed air can be supplied to the cleaning head 4 is. By means of the compressed air supplied via the air supply 10, the blow hole 5b is in turn acted upon with compressed air. Two blow holes 5b lying opposite one another are shown here.
  • the cleaning head 4 is positioned in the axial direction AR in relation to the spinning rotor 3 by the application of compressed air to the blow hole 5b. This takes place in that the cleaning device 1 or the receptacle 6 of the cleaning device 1 has an air chamber 12 which is connected to the air supply 10 via at least one overflow opening 15.
  • the overflow opening 15 is only formed by an annular gap existing between the housing 9 and the cleaning head 4, as symbolized by a small, curved arrow.
  • a defined overflow opening 15 can also be provided between the cleaning head 4 and the air chamber 12. If compressed air now reaches the air chamber 12 via the overflow opening 15, this results in the entire cleaning head 4 with the blow hole or bores 5b being displaced in the axial direction AR of the cleaning head 4, as symbolized here by the two small arrows near the cleaning head 4 .
  • the position of the cleaning head 4 relative to the spinning rotor 3 can be adjusted in this way.
  • the cleaning head 4 has a stop 11 for this purpose, which interacts with a corresponding stop of the receptacle 6.
  • the cleaning head 4 with the blow hole 5b can hereby be brought very close to the rotor groove 8 and thereby positioned opposite it. Since cleaning by means of a blow hole 5b does not require the cleaning element 5 to be aligned with respect to the rotor groove 8 as precisely as cleaning by means of a scraper 5a, the maximum possible extension of the cleaning head 4 out of the receptacle 6 already results in a good alignment of the blow hole 5b in relation take place on the spinning rotor 3. Alternatively or additionally, however, a stop 11 could also be provided which contacts the spinning rotor 3 and thereby enables an even more precise positioning relative to it, as in FIG Figures 5 and 6 shown.
  • Figure 5 shows a further embodiment of a cleaning device 1, which as cleaning element 5 has both two scrapers 5a and a blow hole 5b.
  • Compressed air can be fed to the cleaning head 4 via the air feed 10 and the piston 14 can be displaced, which in turn actuates the scraper 5a.
  • the game of the cleaning head 4 and the distances x are in the Figures 5 and 6 not labeled for the sake of clarity.
  • the air chamber 12 is assigned an exhaust air opening 16. If, when the piston 14 is pressurized or when the scraper 5a is actuated with compressed air, which is supplied via the air supply 10, compressed air reaches the air chamber 12 via the overflow opening 15, this can easily escape via the exhaust air opening 16.
  • the cleaning head 4 is thus, as in FIGS Figures 1 to 3 shown, floating in or on the receptacle 6, so that an automatic adjustment of the cleaning head 4 is possible in the axial direction and the rotor groove 8 can be cleaned by means of the scraper 5a.
  • the exhaust air opening 16 can be closed by means of a shut-off valve, not shown here, as in FIG Figure 6 symbolized by a line in the area of the exhaust air opening 16.
  • a stop 11 is arranged on the cleaning head 4 which contacts the spinning rotor 3 during axial displacement, so that the cleaning head 4 is automatically correctly positioned in relation to the spinning rotor 3, in particular in relation to the rotor groove 8 of the spinning rotor 3.
  • the stop 11 makes contact with the rotor base 18 of the spinning rotor 3.
  • the embodiment shown with a lockable exhaust air opening 16 is that the cleaning head 4 as in the Figures 1-3 shown can be stored floating freely within the receptacle 6 in order to position the scraper 5a automatically, and after the exhaust air opening 16 has been shut off, the air chamber 12 can be acted upon, which actively pushes the cleaning head out of the receptacle 6.
  • the one in the Figures 5 and 6 The cleaning head 4 shown or the cleaning device 1 can therefore be used in a particularly flexible manner. It is also conceivable, in the case of a cleaning device 1 with such a lockable air chamber 12, to design the cleaning head 4 in two or more parts, as is also shown in FIG Figures 5 and 6 is shown. Different cleaning elements 5 can thus be arranged interchangeably on the cleaning device 1 in a simple manner. Of course, such a two-part design of the cleaning head 4 could also be used in the cleaning devices 1 of the Figures 1 to 4 can be used advantageously.

Description

Die vorliegende Erfindung betrifft eine Reinigungsvorrichtung zur Reinigung eines Rotortellers eines Spinnrotors. Die Reinigungsvorrichtung weist einen Reinigungskopf auf, welcher zumindest ein Reinigungselement zum Reinigen des Spinnrotors aufweist, und eine Aufnahme, in welcher der Reinigungskopf gelagert ist und welche dem Spinnrotor zur Reinigung zustellbar ist. Der Reinigungskopf weist zumindest einen Lagerbereich auf, dessen Längsrichtung eine axiale Richtung des Reinigungskopfs definiert.The present invention relates to a cleaning device for cleaning a rotor plate of a spinning rotor. The cleaning device has a cleaning head, which has at least one cleaning element for cleaning the spinning rotor, and a receptacle in which the cleaning head is mounted and which can be advanced to the spinning rotor for cleaning. The cleaning head has at least one bearing area, the longitudinal direction of which defines an axial direction of the cleaning head.

Die DE 37 15 934 A1 beschreibt eine Reinigungsvorrichtung, welche einen Reinigungskopf mit einem ausfahrbaren Schaber als Reinigungselement aufweist. Der Reinigungskopf ist an einem beweglich gelagerten Arm angeordnet, um dem Spinnrotor zugestellt werden zu können. Nach dem Zustellen des Reinigungskopfes an den Spinnrotor wird dann der Schaber mittels eines druckluftbeaufschlagbaren Kolbens ausgefahren, damit dieser die Rotorrille erreichen kann.the DE 37 15 934 A1 describes a cleaning device which has a cleaning head with an extendable scraper as a cleaning element. The cleaning head is arranged on a movably mounted arm so that it can be fed to the spinning rotor. After the cleaning head has been brought to the spinning rotor, the scraper is then extended by means of a piston that can be acted upon by compressed air so that it can reach the rotor groove.

Aus der EP 0 071 893 B1 ist eine Reinigungsvorrichtung bekannt, bei der als Reinigungselement ein Blaskopf in einem Reinigungskopf vorgesehen ist. Nachdem die Reinigungsvorrichtung dem Spinnrotor zugestellt ist, wird der Blaskopf mittels eines Kolbens ausgefahren und hierdurch in Bezug auf die Rotorrille positioniert. Das Rückstellen des Blaskopfes nach erfolgter Reinigung erfolgt dann mittels Federkraft.From the EP 0 071 893 B1 a cleaning device is known in which a blow head is provided in a cleaning head as the cleaning element. After the cleaning device has been fed to the spinning rotor, the blow head is extended by means of a piston and thereby positioned in relation to the rotor groove. After cleaning, the blow head is reset by means of spring force.

Weiterhin beschreibt die EP 1 201 800 A1 einen einem Spinnrotor zustellbaren Reinigungskopf, an welchem ein Schaber ausfahrbar angeordnet ist. Um eine Feinjustierung des Schabers in Bezug auf den Spinnrotor unabhängig von der Position des gesamten Reinigungskopfes zu ermöglichen, kann der Schaber axial verschiebbar an dem Reinigungskopf angeordnet sein. Zum Verschieben des Schabers kann ein Schrittmotor oder ein anderer Linearantrieb eingesetzt werden.Furthermore describes the EP 1 201 800 A1 a cleaning head which can be fed to a spinning rotor and on which a scraper is arranged such that it can be extended. In order to enable fine adjustment of the scraper in relation to the spinning rotor independently of the position of the entire cleaning head, the scraper can be arranged axially displaceably on the cleaning head. To the Moving the scraper, a stepper motor or another linear drive can be used.

Aus der DE 103 14 936 A1 ist eine Reinigungsvorrichtung bekannt, die einen Reinigungskopf mit einem Schaber als Reinigungselement aufweist. Der Reinigungskopf ist dabei dem Spinnrotor mittels einer Zustelleinheit zustellbar, so dass das Reinigungselement in das Innere des Spinnrotors gelangen kann und diesen auf seiner Innenseite reinigen kann. Da insbesondere die Rotorrille des Spinnrotors einer intensiven Reinigung bedarf, ist es bei solchen Reinigungsvorrichtungen stets wesentlich, dass diese während der Reinigung vergleichsweise genau in Bezug auf die Rotorrille positioniert sind. Der Reinigungskopf der DE 103 14 936 A1 weist daher ein Anschlagelement auf, mittels welchem der Reinigungskopf beim Zustellen den Spinnrotor kontaktiert und hierdurch in axialer Richtung in Bezug auf den Spinnrotor positioniert wird. Dennoch kann es aufgrund verschiedener Ursachen zu einer nicht korrekten Positionierung des Reinigungskopfes in Bezug auf den Spinnrotor kommen.From the DE 103 14 936 A1 a cleaning device is known which has a cleaning head with a scraper as a cleaning element. The cleaning head can be advanced to the spinning rotor by means of a feed unit, so that the cleaning element can get into the interior of the spinning rotor and can clean it on its inside. Since, in particular, the rotor groove of the spinning rotor requires intensive cleaning, it is always essential in such cleaning devices that they are positioned comparatively precisely in relation to the rotor groove during cleaning. The cleaning head of the DE 103 14 936 A1 therefore has a stop element, by means of which the cleaning head makes contact with the spinning rotor during feed and is thereby positioned in the axial direction with respect to the spinning rotor. However, for various reasons, the cleaning head may be incorrectly positioned in relation to the spinning rotor.

Aufgabe der vorliegenden Erfindung ist es daher, eine Reinigungsvorrichtung vorzuschlagen, welche in einfacher Weise eine genaue Positionierung der Reinigungsvorrichtung in Bezug auf den Spinnrotor ermöglicht.The object of the present invention is therefore to propose a cleaning device which enables the cleaning device to be precisely positioned in relation to the spinning rotor in a simple manner.

Die Aufgabe wird gelöst durch eine Reinigungsvorrichtung mit den Merkmalen der unabhängigen Patentansprüche.The object is achieved by a cleaning device with the features of the independent patent claims.

Die vorgeschlagene Reinigungsvorrichtung zur Reinigung eines Rotortellers eines Spinnrotors weist einen Reinigungskopf auf, welcher zumindest ein Reinigungselement zum Reinigen des Spinnrotors aufweist, und eine Aufnahme, in welcher der Reinigungskopf gelagert ist und welche dem Spinnrotor zur Reinigung zustellbar ist. Die Zustellung der Aufnahme an den Spinnrotor kann dabei mittels einer Zustelleinheit erfolgen, die beispielsweise einen Pneumatikzylinder, einen Linearantrieb oder auch sonstigen Antrieb aufweisen kann. Der Reinigungskopf weist zumindest einen Lagerbereich, insbesondere einen zylindrischen Lagerbereich auf, dessen Längsrichtung eine axiale Richtung des Reinigungskopfs definiert. Unter der Längsrichtung des Lagerbereichs wird dabei die Richtung der größten Längsausdehnung des Lagerbereichs verstanden. Ist der Lagerbereich ein zylindrischer Lagerbereich, so wird unter der Längsrichtung die Richtung einer Längsachse des Zylinders verstanden. Der zylindrische Bereich kann dabei kreiszylindrisch ausgeführt sein oder, im Sinne einer mathematischen Definition des Begriffs "Zylinder", auf einer beliebigen anderen Grundfläche beruhen, die entlang einer Leitkurve extrudiert wurde. Die Richtung der Leitkurve definiert somit die Längsachse des Zylinders.The proposed cleaning device for cleaning a rotor plate of a spinning rotor has a cleaning head which has at least one cleaning element for cleaning the spinning rotor, and a receptacle in which the cleaning head is mounted and which can be delivered to the spinning rotor for cleaning. The feed of the receptacle to the spinning rotor can take place by means of a feed unit which, for example, has a pneumatic cylinder, a linear drive or some other drive may have. The cleaning head has at least one bearing area, in particular a cylindrical bearing area, the longitudinal direction of which defines an axial direction of the cleaning head. The longitudinal direction of the storage area is understood to mean the direction of the greatest longitudinal extent of the storage area. If the bearing area is a cylindrical bearing area, the longitudinal direction is understood to mean the direction of a longitudinal axis of the cylinder. The cylindrical area can be designed as a circular cylinder or, in the sense of a mathematical definition of the term “cylinder”, be based on any other base area that was extruded along a guide curve. The direction of the guide curve thus defines the longitudinal axis of the cylinder.

Es ist nun vorgesehen, dass der Reinigungskopf in axialer Richtung des Reinigungskopfes frei schwimmend an der Aufnahme gelagert ist. Unter einer schwimmenden Lagerung wird dabei eine Lagerung verstanden, in welcher der Reinigungskopf in beiden axialen Richtungen frei beweglich gelagert ist und somit in axialer Richtung nicht fixiert und auch nicht in anderer Weise, bspw. durch Federkraft, beaufschlagt ist.Provision is now made for the cleaning head to be mounted on the receptacle in a freely floating manner in the axial direction of the cleaning head. A floating bearing is understood to mean a bearing in which the cleaning head is freely movable in both axial directions and is therefore not fixed in the axial direction and also not acted upon in any other way, for example by spring force.

Durch diese frei schwimmende Lagerung ist es dem Reinigungskopf nun möglich, sich bei der Zustellung der Reinigungsvorrichtung an den Spinnrotor automatisch und selbsttätig korrekt in axialer Richtung in Bezug auf den Spinnrotor einzustellen. Insbesondere ist es hierdurch möglich, das Reinigungselement exakt in Bezug auf die Rotorrille auszurichten. Dabei ist aufgrund der freien Beweglichkeit in beiden axialen Richtungen eine korrekte Ausrichtung bzw. Feineinstellung des Reinigungselements bzw. des Reinigungskopfes sowohl möglich, wenn die Reinigungsvorrichtung bzw. die Aufnahme mittels der Zustelleinheit zu nahe an den Spinnrotor zugestellt wird, als auch, wenn die Zustelleinheit die Reinigungsvorrichtung zu weit entfernt von dem Spinnrotor positioniert.As a result of this freely floating mounting, it is now possible for the cleaning head to automatically and automatically adjust itself correctly in the axial direction with respect to the spinning rotor when the cleaning device is fed to the spinning rotor. In particular, this makes it possible to align the cleaning element exactly with respect to the rotor groove. Due to the free mobility in both axial directions, correct alignment or fine adjustment of the cleaning element or the cleaning head is possible both when the cleaning device or the receptacle is fed too close to the spinning rotor by means of the feed unit, and when the feed unit the Cleaning device positioned too far from the spinning rotor.

Nach einer vorteilhaften Ausführung der Erfindung beträgt ein Spiel des Reinigungskopfs in axialer Richtung wenigstens 2 mm, vorzugsweise wenigstens 3 mm und besonders bevorzugt wenigstens 4 mm. Es hat sich gezeigt, dass ein Spiel in dieser Größenordnung ausreichend ist, um eine eventuell ungenaue Positionierung der Aufnahme durch die Zustelleinheit auszugleichen bzw. mittels der freien axialen Beweglichkeit noch eine Feineinstellung des Reinigungskopfes zu erreichen.According to an advantageous embodiment of the invention, a play of the cleaning head in the axial direction is at least 2 mm, preferably at least 3 mm and particularly preferably at least 4 mm. It has been shown that play of this order of magnitude is sufficient to compensate for any inaccurate positioning of the receptacle by the feed unit or to achieve fine adjustment of the cleaning head by means of the free axial mobility.

Nach einer ersten Ausführung der Erfindung ist das wenigstens eine Reinigungselement ein Schaber, welcher ausfahrbar, insbesondere um eine Schaberachse schwenkbar, an dem Reinigungskopf gelagert ist. Der Schaber kann beispielsweise mittels Druckluftbeaufschlagung über einen Kolben ausgefahren werden. Denkbar ist jedoch ebenso ein Ausfahren des oder der Schaber mittels eines Motors, wobei natürlich auch ein lineares Ausfahren des Schabers möglich wäre.According to a first embodiment of the invention, the at least one cleaning element is a scraper, which can be extended, in particular pivoted about a scraper axis, and is mounted on the cleaning head. The scraper can be extended, for example, by applying compressed air via a piston. However, it is also conceivable to extend the scraper or scrapers by means of a motor, whereby a linear extension of the scraper would of course also be possible.

Vorteilhaft ist es bei der ersten Ausführung, wenn der Reinigungskopf eine Luftzuführung aufweist und das wenigstens eine Reinigungselement mittels Druckluft betätigbar ist. Die Luftführung bzw. die Druckluft zur Betätigung des Reinigungselements kann dabei in vorteilhafter Weise auch dazu dienen, den Reinigungskopf gegenüber der Aufnahme zu bewegen.It is advantageous in the first embodiment if the cleaning head has an air supply and the at least one cleaning element can be actuated by means of compressed air. The air duct or the compressed air for actuating the cleaning element can advantageously also serve to move the cleaning head relative to the receptacle.

Durch das Ausfahren des wenigstens einen Schabers ist dabei der Reinigungskopf in axialer Richtung in Bezug auf eine Rotorrille des zu reinigenden Spinnrotors positionierbar. Beim Ausfahren trifft der Schaber aufgrund der Zustellung durch die Zustelleinheit zunächst an einer bestimmten Stelle an dem Rotorboden oder der Rotorrutschwand auf und gleitet aufgrund der Schräge des Rotorbodens oder der Rotorrutschwand sowie aufgrund des in Richtung der Rotorrille hin zunehmenden Durchmessers während des weiteren Ausfahrens von selbst bis in die Rotorrille.By extending the at least one scraper, the cleaning head can be positioned in the axial direction in relation to a rotor groove of the spinning rotor to be cleaned. When extending, the scraper first hits a certain point on the rotor base or the rotor slide wall due to the infeed by the infeed unit and slides by itself due to the incline of the rotor base or the rotor slide wall and due to the increasing diameter in the direction of the rotor groove during the further extension into the rotor groove.

Nach einer zweiten Ausführung der Erfindung weist der Reinigungskopf eine Luftzuführung auf und das wenigstens eine Reinigungselement ist mittels Druckluft betätigbar. Das wenigstens eine Reinigungselement ist eine Blasbohrung, welche über die Luftzuführung des Reinigungskopfs mit Druckluft beaufschlagbar ist.According to a second embodiment of the invention, the cleaning head has an air supply and the at least one cleaning element can be actuated by means of compressed air. The at least one cleaning element is a blow hole to which compressed air can be applied via the air supply to the cleaning head.

Denkbar ist es bei beiden Ausführungen der Erfindung aber auch, dass sowohl ein Schaber oder ein sonstiges mechanisches Reinigungselement als auch eine Blasbohrung, ggf. auch mehrere Blasbohrungen, an dem Reinigungskopf angeordnet sind.In both embodiments of the invention, however, it is also conceivable that both a scraper or some other mechanical cleaning element and a blow hole, possibly also several blow holes, are arranged on the cleaning head.

Bei der zweiten Ausführung ist durch das Beaufschlagen der Blasbohrung mit Druckluft der Reinigungskopf in axialer Richtung in Bezug auf den zu reinigenden Spinnrotor, insbesondere in Bezug auf eine Rotorrille des Spinnrotors, positionierbar.In the second embodiment, by applying compressed air to the blow hole, the cleaning head can be positioned in the axial direction with respect to the spinning rotor to be cleaned, in particular with respect to a rotor groove of the spinning rotor.

Nach einer vorteilhaften Weiterbildung der Reinigungsvorrichtung weist dabei der Reinigungskopf einen Anschlag auf, mittels welchem er in axialer Richtung in Bezug auf den zu reinigenden Spinnrotor, insbesondere in Bezug auf eine Rotorrille des zu reinigenden Spinnrotors, positionierbar ist. Es kann somit auch in diesem Fall eine sehr genaue Ausrichtung des Reinigungskopfes in Bezug auf den Spinnrotor erreicht werden.According to an advantageous development of the cleaning device, the cleaning head has a stop by means of which it can be positioned in the axial direction with respect to the spinning rotor to be cleaned, in particular with respect to a rotor groove of the spinning rotor to be cleaned. A very precise alignment of the cleaning head with respect to the spinning rotor can thus also be achieved in this case.

Die Aufnahme weist eine Luftkammer auf, welche durch wenigstens eine Überströmöffnung mit der Luftzuführung in Verbindung steht. Über die Überströmöffnung kann die Luftkammer mit Druckluft beaufschlagt werden und dadurch der Reinigungskopf in axialer Richtung bewegt werden.The receptacle has an air chamber which is connected to the air supply through at least one overflow opening. Compressed air can be applied to the air chamber via the overflow opening, thereby moving the cleaning head in the axial direction.

Dabei ist es wiederum besonders vorteilhaft, wenn die Luftkammer eine Abluftöffnung aufweist, welcher vorzugsweise ein Absperrventil zugeordnet ist. Es kann somit wahlweise ein Bewegen des Reinigungskopfes durch Druckluft ermöglicht werden oder verhindert werden. Beispielsweise kann das Verhindern einer Bewegung des Reinigungskopfes vorteilhaft sein, wenn ein weiteres Reinigungselement zum Einsatz kommen soll, das in anderer Weise gegenüber dem Spinnrotor positioniert wird oder diesem zugestellt wird. Das weitere Reinigungselement kann dabei ebenfalls an dem Reinigungskopf angeordnet sein. Ebenso kann eine absperrbare Abluftöffnung vorteilhaft sein, um die Reinigungsvorrichtung wahlweise mit verschiedenartigen Reinigungsköpfen bestücken zu können.It is particularly advantageous if the air chamber has an exhaust air opening to which a shut-off valve is preferably assigned. The cleaning head can thus optionally be moved by means of compressed air be made possible or prevented. For example, preventing a movement of the cleaning head can be advantageous if a further cleaning element is to be used, which is positioned in a different way with respect to the spinning rotor or is delivered to it. The further cleaning element can also be arranged on the cleaning head. A lockable exhaust air opening can also be advantageous in order to be able to equip the cleaning device with different types of cleaning heads.

Der Reinigungskopf kann in vorteilhafter Ausführung sowohl einen oder mehrere Schaber als auch eine oder mehrere Blasdüsen als Reinigungselemente aufweisen.In an advantageous embodiment, the cleaning head can have both one or more scrapers and one or more blower nozzles as cleaning elements.

Weitere Vorteile der Erfindung sind in den nachfolgenden Ausführungsbeispielen beschrieben. Es zeigen:

Figur 1
eine schematische, geschnittene Darstellung einer Reinigungsvorrichtung sowie eines Spinnrotors in einer ersten Stellung,
Figur 2
die Reinigungsvorrichtung der Figur 1 in einer zweiten Stellung, in welcher sie dem Spinnrotor zugestellt ist,
Figur 3
die Reinigungsvorrichtung der Figur 1 in einer weiteren Stellung, in welcher sie dem Spinnrotor zugestellt ist,
Figur 4
eine schematische, geschnittene Darstellung einer Reinigungsvorrichtung nach einer anderen Ausführung,
Figur 5
eine schematische, geschnittene Darstellung einer Reinigungsvorrichtung nach einer weiteren Ausführung, wobei die Reinigungsvorrichtung einem Spinnrotor zugestellt ist, sowie
Figur 6
die Reinigungsvorrichtung der Figur 5 in einer weiteren Stellung, in welcher ein weiteres Reinigungselement zum Einsatz kommt.
Further advantages of the invention are described in the following exemplary embodiments. Show it:
Figure 1
a schematic, sectional representation of a cleaning device and a spinning rotor in a first position,
Figure 2
the cleaning device of the Figure 1 in a second position, in which it is fed to the spinning rotor,
Figure 3
the cleaning device of the Figure 1 in a further position in which it is fed to the spinning rotor,
Figure 4
a schematic, sectional representation of a cleaning device according to another embodiment,
Figure 5
a schematic, sectioned illustration of a cleaning device according to a further embodiment, wherein the cleaning device is fed to a spinning rotor, and
Figure 6
the cleaning device of the Figure 5 in a further position in which a further cleaning element is used.

Figur 1 zeigt eine Reinigungsvorrichtung 1 zur Reinigung eines Rotortellers 2 eine Spinnrotors 3. Der Spinnrotor 3 weist neben dem Rotorteller 2 einen Rotorschaft 13 auf, an welchem der Rotorteller 2 fest oder auch lösbar befestigt ist. Beim Verspinnen von Fasermaterial kommt es im Betrieb von Offenend-Rotorspinnvorrichtungen stets zu einer Verschmutzung insbesondere der Innenseite des Spinnrotors. Die Verschmutzungen können dabei je nach verwendetem Fasermaterial oder Reinigungsgrad des Fasermaterials unterschiedlich ausfallen und können auch starke Anhaftungen auf der Innenseite des Spinnrotors 3 beinhalten. Insbesondere die Rotorrille 8 ist dabei einer erheblichen Verschmutzung unterworfen, welche sich nachteilig auf den weiteren Spinnprozess auswirkt. Die Spinnrotoren 3 müssen daher insbesondere im Bereich der Rotorrille 8 regelmäßig gereinigt werden, wofür die Reinigungsvorrichtung 1 vorgesehen ist. Figure 1 shows a cleaning device 1 for cleaning a rotor disk 2, a spinning rotor 3. In addition to the rotor disk 2, the spinning rotor 3 has a rotor shaft 13 to which the rotor disk 2 is fixedly or detachably attached. When spinning fiber material, when open-end rotor spinning devices are in operation, there is always contamination, in particular the inside of the spinning rotor. The soiling can vary depending on the fiber material used or the degree of cleaning of the fiber material and can also contain strong buildup on the inside of the spinning rotor 3. In particular, the rotor groove 8 is subject to considerable contamination, which has a disadvantageous effect on the further spinning process. The spinning rotors 3 must therefore be cleaned regularly, especially in the area of the rotor groove 8, for which the cleaning device 1 is provided.

Die Reinigungsvorrichtung 1 beinhaltet eine Aufnahme 6, welche mittels einer Zustelleinheit 9, die hier nur angedeutet ist, dem Spinnrotor 3 zugestellt werden kann und an welcher ein Reinigungskopf 4 zur Reinigung des Spinnrotors 3 angeordnet ist. Die Reinigungsvorrichtung 1 kann beispielsweise mittels der Zustelleinheit 9 an einer entlang von Spinnstellen einer Offenend-Rotorspinnmaschine verfahrbaren Wartungseinrichtung angeordnet sein, wobei die Zustelleinheit 9 einen Pneumatikzylinder, einen elektrischen Linearantrieb oder einen sonstigen Antrieb beinhalten kann, um die Aufnahme mit dem Reinigungskopf 4 dem Spinnrotor 3 zuzustellen. Die Wartungseinrichtung ist ebenso wie die Offenend-Rotorspinnvorrichtung nicht dargestellt. Die Aufnahme der vorliegenden Reinigungsvorrichtung umgibt den Spinnrotor 3 topfförmig und kann einen Drehantrieb beinhalten, mittels welchem der Spinnrotor 3 während seiner Reinigung antreibbar ist. Ebenso ist es jedoch auch möglich, dass der Spinnrotor 3 mittels eines an der Offenend-Rotorspinnvorrichtung angeordneten Antriebs in Drehung versetzt wird. Daneben ist es natürlich auch denkbar, eine Reinigung des Spinnrotors 3 ohne eine Drehbewegung vorzunehmen.The cleaning device 1 contains a receptacle 6 which can be fed to the spinning rotor 3 by means of a feed unit 9, which is only indicated here, and on which a cleaning head 4 for cleaning the spinning rotor 3 is arranged. The cleaning device 1 can be arranged, for example, by means of the feed unit 9 on a maintenance device that can be moved along spinning positions of an open-end rotor spinning machine, wherein the feed unit 9 can contain a pneumatic cylinder, an electric linear drive or some other drive in order to accommodate the cleaning head 4 with the spinning rotor 3 to send. The maintenance device, like the open-end rotor spinning device, is not shown. The receptacle of the present cleaning device surrounds the spinning rotor 3 in the shape of a pot and can contain a rotary drive by means of which the spinning rotor 3 can be driven during its cleaning. However, it is likewise also possible for the spinning rotor 3 to be attached to the open-end rotor spinning device by means of one arranged drive is set in rotation. In addition, it is of course also conceivable to clean the spinning rotor 3 without a rotary movement.

Zur Reinigung des Spinnrotors 3 bzw. der Rotorrille 8 weist der vorliegende Reinigungskopf 4 als Reinigungselemente 5 zwei Schaber 5a auf, welche um eine Schaberachse SA schwenkbar an dem Reinigungskopf 4 gelagert sind. Das Ausschwenken der Schaber 5a, die beispielsweise mittels eines Kolbens 14 betätigt werden können, ist dabei durch eine strichpunktierte Linie angedeutet. Der Kolben 14 wird dabei, wie durch den Pfeil angedeutet, nach rechts bewegt. Der Kolben 14 kann pneumatisch betätigt werden, wofür der Reinigungskopf 4 eine Luftzuführung 10 (s. Fig. 4 - 6) aufweist und mit Druckluft beaufschlagt werden kann. Ebenso kann das Ausfahren der Schaber 5a jedoch auch mittels eines Motors oder in anderer Weise erfolgen. Die vorliegende Darstellung ist daher lediglich beispielhaft zu verstehen. Der Reinigungskopf 4 weist zumindest einen Lagerbereich 7 auf, der vorliegend durch seinen Außendurchmesser an dem der Aufnahme 6 zugewandten Bereich zylindrisch ausgebildet ist und welcher durch seine Längsachse, hier die Mittellängsachse, eine axiale Richtung AR des Reinigungskopfs 4 definiert. Der Reinigungskopf 4 kann aber natürlich noch weitere oder andere zylindrische Bereiche bzw. Lagerbereiche 7 aufweisen, welche die axiale Richtung AR definieren.To clean the spinning rotor 3 or the rotor groove 8, the present cleaning head 4 has two scrapers 5 a as cleaning elements 5, which are mounted on the cleaning head 4 so as to be pivotable about a scraper axis SA. The swiveling out of the scrapers 5a, which can be actuated by means of a piston 14, for example, is indicated by a dot-dash line. The piston 14 is moved to the right, as indicated by the arrow. The piston 14 can be actuated pneumatically, for which the cleaning head 4 has an air supply 10 (see Fig. Figures 4-6 ) and can be pressurized with compressed air. However, the extension of the scrapers 5a can also take place by means of a motor or in some other way. The present representation is therefore to be understood only as an example. The cleaning head 4 has at least one bearing area 7, which in the present case is cylindrical due to its outer diameter on the area facing the receptacle 6 and which defines an axial direction AR of the cleaning head 4 via its longitudinal axis, here the central longitudinal axis. The cleaning head 4 can of course also have further or other cylindrical areas or bearing areas 7 which define the axial direction AR.

Bei der dargestellten Reinigungsvorrichtung 1 ist nun der Reinigungskopf 4 in axialer Richtung AR schwimmend an der Aufnahme 6 gelagert und weist ein axiales Spiel auf. Vorliegend ist der Reinigungskopf 4 in einer Mittelstellung gezeigt, in welcher er in beiden axialen Richtungen AR ein Spiel gegenüber der Aufnahme 6 aufweist, wie durch die beiden Abstände x dargestellt. Alternativ zu der gezeigten Darstellung wäre es jedoch auch möglich, gemäß einer nicht beanspruchten Ausführungsform, dass der Reinigungskopf 4 selbst fest, d. h. ohne Spiel, an der Aufnahme 6 gelagert ist und ein Abstand x zwischen dem oder den Schabern 5a und dem Reinigungskopf 4 vorgesehen ist.In the illustrated cleaning device 1, the cleaning head 4 is now floatingly mounted in the axial direction AR on the receptacle 6 and has axial play. In the present case, the cleaning head 4 is shown in a central position in which it has play in both axial directions AR with respect to the receptacle 6, as shown by the two distances x. As an alternative to the illustration shown, however, it would also be possible, according to an embodiment not claimed, for the cleaning head 4 itself to be mounted firmly, ie without play, on the receptacle 6 and for a distance x to be provided between the scraper or scrapers 5a and the cleaning head 4 .

Bei den nachfolgenden Beschreibungen der Figuren 2 bis 6 werden für Merkmale, die im Vergleich zu der in Figur 1 dargestellten Ausführung bzw. der in Figur 1 dargestellten Stellung der Reinigungsvorrichtung 1 identisch oder zumindest vergleichbar sind, gleiche Bezugszeichen verwendet. Sofern diese nicht nochmals detailliert erläutert werden, entspricht deren Ausgestaltung und/oder Wirkweise der Ausgestaltung und Wirkungsweise der vorstehend bereits beschriebenen Merkmale. Es wird somit im Folgenden vor allem auf die Unterschiede zur Figur 1 eingegangen.In the following descriptions of the Figures 2 to 6 are used for features that are different from that in Figure 1 version shown or the one in Figure 1 The illustrated position of the cleaning device 1 are identical or at least comparable, the same reference numerals are used. Unless these are explained again in detail, their design and / or mode of action corresponds to the design and mode of action of the features already described above. In the following, the differences to the Figure 1 received.

Figur 2 zeigt die Reinigungsvorrichtung 1 der Figur 1 in einer zweiten Stellung, in welcher der Reinigungskopf 4 mittels der Aufnahme 6 und der Zustelleinheit 9 dem Spinnrotor 3 bereits zugestellt wurde. Dabei tritt häufig das Problem auf, dass aufgrund von Einstellfehlern der Reinigungsvorrichtung 1 in Bezug auf die Zustelleinheit 9 oder die verfahrbare Wartungseinrichtung, aufgrund von Positionsabweichungen der Wartungseinrichtung gegenüber der Spinnstelle, aufgrund eines Spiels zwischen den verschiedenen Bauteilen oder aufgrund anderer Ursachen die Positionierung der Reinigungsvorrichtung 1 in axialer Richtung gegenüber dem Spinnrotor 3 nicht exakt erfolgen kann, so dass die Reinigungselemente 5 oftmals die Rotorrille 8 nicht exakt erreichen können. Eine zuverlässige Reinigung der Rotorrille 8 ist dann nicht mehr möglich. Figure 2 shows the cleaning device 1 of FIG Figure 1 in a second position in which the cleaning head 4 has already been fed to the spinning rotor 3 by means of the receptacle 6 and the feed unit 9. The problem often arises that, due to setting errors of the cleaning device 1 in relation to the delivery unit 9 or the movable maintenance device, due to positional deviations of the maintenance device in relation to the spinning station, due to play between the various components or due to other causes, the positioning of the cleaning device 1 cannot take place exactly in the axial direction with respect to the spinning rotor 3, so that the cleaning elements 5 often cannot reach the rotor groove 8 exactly. Reliable cleaning of the rotor groove 8 is then no longer possible.

In dem in Figur 2 gezeigten Beispiel ist die Reinigungsvorrichtung 1 beispielsweise in axialer Richtung AR zu weit entfernt von dem Spinnrotor 3 positioniert. Beim Ausfahren der Schaber 5a gelangen diese daher nicht in die Rotorrille 8, sondern liegen an der Rotorrutschwand 17 des Rotortellers 2 an. Aufgrund der weiteren Beaufschlagung des Kolbens 14 oder eines sonstigen Betätigungselements, beispielsweise eines Motors, und des in Richtung der Rotorrille 8 hin zunehmenden Durchmessers wird nun jedoch der Reinigungskopf 4 unter Aufhebung zumindest eines Teiles des axialen Spiels in axialer Richtung AR gegenüber der Aufnahme 6 bewegt (s. Pfeile). Dabei gleiten die Schaber 5a entlang der Schräge der Rotorrutschwand 17 bis in die Rotorrille 8 und sind nun korrekt gegenüber dieser platziert, wie durch die strichpunktierte Linie angedeutet. Aufgrund des im Bereich des Rotorbodens 18 wieder abnehmenden Durchmessers des Rotortellers 2 wäre zum weiteren axialen Verschieben des Reinigungskopfes 4 ein erhöhter Kraftaufwand erforderlich, so dass keine weitere Bewegung des Reinigungskopfes 4 erfolgt.In the in Figure 2 In the example shown, the cleaning device 1 is positioned too far away from the spinning rotor 3 in the axial direction AR, for example. When the scrapers 5 a are extended, they therefore do not get into the rotor groove 8, but lie against the rotor slide wall 17 of the rotor disk 2. However, due to the further loading of the piston 14 or some other actuating element, for example a motor, and the increasing diameter in the direction of the rotor groove 8, the cleaning head 4 is now moved in the axial direction AR with respect to the receptacle 6, removing at least part of the axial play ( see arrows). Included the scrapers 5a slide along the incline of the rotor slide wall 17 into the rotor groove 8 and are now correctly positioned opposite this, as indicated by the dash-dotted line. Due to the diameter of the rotor plate 2 decreasing again in the area of the rotor base 18, an increased expenditure of force would be required for further axial displacement of the cleaning head 4, so that no further movement of the cleaning head 4 takes place.

In Figur 3 ist eine andere Situation der Reinigungsvorrichtung 1 gezeigt, in welcher die Reinigungsvorrichtung 1 bereits dem Spinnrotor 3 zugestellt wurde und der Reinigungskopf 4 sich bereits selbsttätig korrekt in Bezug auf die Rotorrille 8 positioniert hat. In dem in Figur 3 gezeigtem Beispiel ist dabei die Reinigungsvorrichtung 1 zu nahe an dem Spinnrotor 3 positioniert worden, so dass die Schaber 5a zunächst auf dem Rotorboden 18 des Spinnrotors 3 aufgetroffen sind. Aufgrund der weiteren Beaufschlagung des Kolbens 14 bzw. des Betätigungselements der Schaber 5a sind die Schaber 5a dabei entlang der Schräge des Rotorbodens 18 in Richtung des größeren Durchmessers der Rotorrille 8 geglitten, wobei wiederum das Spiel zwischen dem Reinigungskopf 4 und der Zustelleinheit 6 auf der einen Seite des Reinigungskopfes 4 zumindest zum Teil aufgehoben wurde. Vorliegend ist der Reinigungskopf 4 in seiner gegenüber der Aufnahme 6 vollständig eingefahrenen Stellung gezeigt, so dass sich nun im linken Bereich der Figur ein Abstand 2x zwischen dem Reinigungskopf 4 und der Aufnahme 6 ergibt. Selbstverständlich muss der Reinigungskopf 4 nicht um den vollständigen Abstand x oder 2x verschoben werden, sondern es sind je nach dem Abstand des Reinigungskopfes 4 von dem Spinnrotor 3 nach dem Zustellen auch verschiedene Zwischenstellungen möglich.In Figure 3 Another situation of the cleaning device 1 is shown, in which the cleaning device 1 has already been delivered to the spinning rotor 3 and the cleaning head 4 has already automatically positioned itself correctly in relation to the rotor groove 8. In the in Figure 3 In the example shown, the cleaning device 1 has been positioned too close to the spinning rotor 3, so that the scrapers 5a initially hit the rotor base 18 of the spinning rotor 3. Due to the further loading of the piston 14 or the actuating element of the scrapers 5a, the scrapers 5a slid along the incline of the rotor base 18 in the direction of the larger diameter of the rotor groove 8, with the play between the cleaning head 4 and the feed unit 6 on the one hand Side of the cleaning head 4 was at least partially canceled. In the present case, the cleaning head 4 is shown in its completely retracted position with respect to the receptacle 6, so that there is now a distance 2x between the cleaning head 4 and the receptacle 6 in the left-hand area of the figure. Of course, the cleaning head 4 does not have to be displaced by the complete distance x or 2x, but various intermediate positions are also possible depending on the distance between the cleaning head 4 and the spinning rotor 3 after the infeed.

Figur 4 zeigt eine andere Ausführung einer Reinigungsvorrichtung 1, bei welcher das Reinigungselement 5 nicht durch einen Schaber 5a, sondern durch eine Blasbohrung 5b gebildet ist. Der Reinigungskopf 4 weist hierbei eine Luftführung 10 auf, über welche dem Reinigungskopf 4 Druckluft zuführbar ist. Mittels der über die Luftzuführung 10 zugeführten Druckluft wird wiederum die Blasbohrung 5b mit Druckluft beaufschlagt. Vorliegend sind zwei einander gegenüberliegende Blasbohrungen 5b gezeigt. Dabei wird wiederum durch das Beaufschlagen der Blasbohrung 5b mit Druckluft der Reinigungskopf 4 in axialer Richtung AR in Bezug auf den Spinnrotor 3 positioniert. Dies erfolgt dadurch, dass die Reinigungsvorrichtung 1 bzw. die Aufnahme 6 der Reinigungsvorrichtung 1 eine Luftkammer 12 aufweist, die über wenigstens eine Überströmöffnung 15 mit der Luftzuführung 10 in Verbindung steht. Figure 4 shows another embodiment of a cleaning device 1, in which the cleaning element 5 is not formed by a scraper 5a, but by a blow hole 5b. The cleaning head 4 here has an air duct 10, via which compressed air can be supplied to the cleaning head 4 is. By means of the compressed air supplied via the air supply 10, the blow hole 5b is in turn acted upon with compressed air. Two blow holes 5b lying opposite one another are shown here. The cleaning head 4 is positioned in the axial direction AR in relation to the spinning rotor 3 by the application of compressed air to the blow hole 5b. This takes place in that the cleaning device 1 or the receptacle 6 of the cleaning device 1 has an air chamber 12 which is connected to the air supply 10 via at least one overflow opening 15.

Die Überströmöffnung 15 ist vorliegend lediglich durch einen zwischen dem Gehäuse 9 und dem Reinigungskopf 4 bestehenden Ringspalt gebildet, wie durch einen kleinen, geschwungenen Pfeil symbolisiert. Es kann aber auch eine definierte Überströmöffnung 15 zwischen dem Reinigungskopf 4 und der Luftkammer 12 vorgesehen sein. Gelangt nun über die Überströmöffnung 15 Druckluft in die Luftkammer 12, so führt dies dazu, dass der gesamte Reinigungskopf 4 mit der oder den Blasbohrungen 5b in axialer Richtung AR des Reinigungskopfes 4 verschoben wird, wie vorliegend durch die zwei kleinen Pfeile nahe des Reinigungskopfes 4 symbolisiert. Die Position des Reinigungskopfes 4 gegenüber dem Spinnrotor 3 kann hierdurch eingestellt werden. Nach vorliegendem Beispiel weist dazu der Reinigungskopf 4 einen Anschlag 11 auf, welcher mit einem korrespondierenden Anschlag der Aufnahme 6 zusammenwirkt. Der Reinigungskopf 4 mit der Blasbohrung 5b kann hierdurch sehr nahe an die Rotorrille 8 herangebracht werden und dadurch gegenüber dieser positioniert werden. Da die Reinigung mittels einer Blasbohrung 5b keine derart exakte Ausrichtung des Reinigungselements 5 gegenüber der Rotorrille 8 erfordert, wie die Reinigung mittels eines Schabers 5a, kann durch das weitest mögliche Ausfahren des Reinigungskopfes 4 aus der Aufnahme 6 bereits eine gute Ausrichtung der Blasbohrung 5b in Bezug auf den Spinnrotor 3 erfolgen. Alternativ oder zusätzlich könnte jedoch auch ein Anschlag 11 vorgesehen sein, welcher den Spinnrotor 3 kontaktiert und dadurch eine noch genauere Positionierung gegenüber diesem ermöglicht, wie in Fig. 5 und 6 dargestellt.In the present case, the overflow opening 15 is only formed by an annular gap existing between the housing 9 and the cleaning head 4, as symbolized by a small, curved arrow. However, a defined overflow opening 15 can also be provided between the cleaning head 4 and the air chamber 12. If compressed air now reaches the air chamber 12 via the overflow opening 15, this results in the entire cleaning head 4 with the blow hole or bores 5b being displaced in the axial direction AR of the cleaning head 4, as symbolized here by the two small arrows near the cleaning head 4 . The position of the cleaning head 4 relative to the spinning rotor 3 can be adjusted in this way. According to the present example, the cleaning head 4 has a stop 11 for this purpose, which interacts with a corresponding stop of the receptacle 6. The cleaning head 4 with the blow hole 5b can hereby be brought very close to the rotor groove 8 and thereby positioned opposite it. Since cleaning by means of a blow hole 5b does not require the cleaning element 5 to be aligned with respect to the rotor groove 8 as precisely as cleaning by means of a scraper 5a, the maximum possible extension of the cleaning head 4 out of the receptacle 6 already results in a good alignment of the blow hole 5b in relation take place on the spinning rotor 3. Alternatively or additionally, however, a stop 11 could also be provided which contacts the spinning rotor 3 and thereby enables an even more precise positioning relative to it, as in FIG Figures 5 and 6 shown.

Figur 5 zeigt eine weitere Ausführung einer Reinigungsvorrichtung 1, die als Reinigungselement 5 sowohl zwei Schaber 5a, als auch eine Blasbohrung 5b aufweist. Über die Luftzuführung 10 kann dabei dem Reinigungskopf 4 Druckluft zugeführt werden und der Kolben 14 verschoben werden, welcher wiederum die Schaber 5a betätigt. Das Spiel des Reinigungskopfes 4 bzw. die Abstände x sind in den Figuren 5 und 6 aus Gründen der Übersichtlichkeit nicht bezeichnet. Der Luftkammer 12 ist dabei eine Abluftöffnung 16 zugeordnet. Gelangt nun beim Beaufschlagen des Kolbens 14 bzw. beim Betätigen der Schaber 5a mit Druckluft, welche über die Luftzuführung 10 zugeführt wird, Druckluft über die Überströmöffnung 15 in die Luftkammer 12, so kann diese über die Abluftöffnung 16 problemlos entweichen. Der Reinigungskopf 4 ist somit, wie in den Figuren 1 bis 3 gezeigt, schwimmend in bzw. an der Aufnahme 6 gelagert, so dass eine selbsttätige Einstellung des Reinigungskopfes 4 in axialer Richtung möglich ist und die Rotorrille 8 mittels der Schaber 5a gereinigt werden kann. Figure 5 shows a further embodiment of a cleaning device 1, which as cleaning element 5 has both two scrapers 5a and a blow hole 5b. Compressed air can be fed to the cleaning head 4 via the air feed 10 and the piston 14 can be displaced, which in turn actuates the scraper 5a. The game of the cleaning head 4 and the distances x are in the Figures 5 and 6 not labeled for the sake of clarity. The air chamber 12 is assigned an exhaust air opening 16. If, when the piston 14 is pressurized or when the scraper 5a is actuated with compressed air, which is supplied via the air supply 10, compressed air reaches the air chamber 12 via the overflow opening 15, this can easily escape via the exhaust air opening 16. The cleaning head 4 is thus, as in FIGS Figures 1 to 3 shown, floating in or on the receptacle 6, so that an automatic adjustment of the cleaning head 4 is possible in the axial direction and the rotor groove 8 can be cleaned by means of the scraper 5a.

Ist es jedoch gewünscht, die Rotorrille 8 oder auch einen anderen Bereich des Spinnrotors 3 nicht mittels der Schaber 5a, sondern mittels der Blasbohrung 5b zu reinigen, so kann die Abluftöffnung 16 mittels eines hier nicht dargestellten Absperrventils verschlossen werden, wie in Figur 6 mittels eines Strichs im Bereich der Abluftöffnung 16 symbolisiert. Hierdurch gelangt nun beim Beaufschlagen des Reinigungskopfes 4 mit Druckluft wie zu Figur 4 beschrieben über die Überströmöffnung 15 auch Druckluft in die Luftkammer 12, so dass der Reinigungskopf 4 in axialer Richtung AR vorliegend nach rechts verschoben wird (s. Pfeil). Vorliegend ist an dem Reinigungskopf 4 ein Anschlag 11 angeordnet, der den Spinnrotor 3 beim axialen Verschieben kontaktiert, so dass der Reinigungskopf 4 automatisch korrekt in Bezug auf den Spinnrotor 3, insbesondere in Bezug auf die Rotorrille 8 des Spinnrotors 3, positioniert wird. Vorliegend kontaktiert der Anschlag 11 den Rotorboden 18 des Spinnrotors 3.However, if it is desired to clean the rotor groove 8 or another area of the spinning rotor 3 not by means of the scraper 5a but by means of the blow hole 5b, the exhaust air opening 16 can be closed by means of a shut-off valve, not shown here, as in FIG Figure 6 symbolized by a line in the area of the exhaust air opening 16. As a result, when the cleaning head 4 is pressurized with compressed air, such as to Figure 4 described also compressed air into the air chamber 12 via the overflow opening 15, so that the cleaning head 4 is displaced in the present case to the right in the axial direction AR (see arrow). In the present case, a stop 11 is arranged on the cleaning head 4 which contacts the spinning rotor 3 during axial displacement, so that the cleaning head 4 is automatically correctly positioned in relation to the spinning rotor 3, in particular in relation to the rotor groove 8 of the spinning rotor 3. In the present case, the stop 11 makes contact with the rotor base 18 of the spinning rotor 3.

Vorteilhaft bei der in Figur 2 und 3 gezeigten Ausführung mit einer absperrbaren Abluftöffnung 16 ist es, dass der Reinigungskopf 4 wie in den Figuren 1-3 gezeigt frei schwimmend innerhalb der Aufnahme 6 gelagert werden kann, um die Schaber 5a selbsttätig zu positionieren, als auch nach Absperren der Abluftöffnung 16 eine Beaufschlagung der Luftkammer 12 ermöglicht wird, welche den Reinigungskopf aktiv aus der Aufnahme 6 herausschiebt. Der in den Figuren 5 und 6 gezeigte Reinigungskopf 4 bzw. die Reinigungsvorrichtung 1 kann daher in besonders flexibler Weise eingesetzt werden. Ebenso ist es auch denkbar, bei einer Reinigungsvorrichtung 1 mit einer solchen absperrbaren Luftkammer 12 den Reinigungskopf 4 zwei- oder mehrteilig auszugestalten, wie es auch in den Figuren 5 und 6 gezeigt ist. Es können somit in einfacher Weise verschiedene Reinigungselemente 5 austauschbar an der Reinigungsvorrichtung 1 angeordnet werden. Natürlich könnte eine solche zweiteilige Ausführung des Reinigungskopfes 4 auch bei den Reinigungsvorrichtungen 1 der Figuren 1 bis 4 vorteilhaft zum Einsatz kommen.Advantageous with the in Figure 2 and 3 The embodiment shown with a lockable exhaust air opening 16 is that the cleaning head 4 as in the Figures 1-3 shown can be stored floating freely within the receptacle 6 in order to position the scraper 5a automatically, and after the exhaust air opening 16 has been shut off, the air chamber 12 can be acted upon, which actively pushes the cleaning head out of the receptacle 6. The one in the Figures 5 and 6 The cleaning head 4 shown or the cleaning device 1 can therefore be used in a particularly flexible manner. It is also conceivable, in the case of a cleaning device 1 with such a lockable air chamber 12, to design the cleaning head 4 in two or more parts, as is also shown in FIG Figures 5 and 6 is shown. Different cleaning elements 5 can thus be arranged interchangeably on the cleaning device 1 in a simple manner. Of course, such a two-part design of the cleaning head 4 could also be used in the cleaning devices 1 of the Figures 1 to 4 can be used advantageously.

Die vorliegende Erfindung ist nicht auf die dargestellten und beschriebenen Ausführungsbeispiele beschränkt. Abwandlungen im Rahmen der Patentansprüche sind ebenso möglich wie eine Kombination der Merkmale, auch wenn diese in unterschiedlichen Ausführungsbeispielen dargestellt und beschrieben sind.The present invention is not limited to the illustrated and described exemplary embodiments. Modifications within the scope of the patent claims are just as possible as a combination of the features, even if these are shown and described in different exemplary embodiments.

BezugszeichenlisteList of reference symbols

11
ReinigungsvorrichtungCleaning device
22
RotortellerRotor plate
33
SpinnrotorSpinning rotor
44th
ReinigungskopfCleaning head
55
ReinigungselementCleaning element
5a5a
Schaberscraper
5b5b
BlasbohrungBlow hole
66th
Aufnahmerecording
77th
Lagerbereichstorage area
88th
RotorrilleRotor groove
99
ZustelleinheitDelivery unit
1010
LuftzuführungAir supply
1111
Anschlagattack
1212th
LuftkammerAir chamber
1313th
RotorschaftRotor shaft
1414th
KolbenPistons
1515th
ÜberströmöffnungOverflow opening
1616
AbluftöffnungExhaust vent
1717th
RutschwandSlide wall
1818th
RotorbodenRotor bottom
ARAR
axiale Richtungaxial direction
SASA
SchaberachseScraper axis
XX
Abstanddistance

Claims (7)

  1. Cleaning device (1) for cleaning a rotor disk (2) of a spinning rotor (3) with a cleaning head (4), which features at least one cleaning element (5a, 5b) for cleaning the spinning rotor (3), whereas the at least one cleaning element (5a, 5b) is a scraper (5a), which is mounted on the cleaning head (4) such that it can be extended and with a receptacle (6), on which the cleaning head (4) is mounted and which can be fed to the spinning rotor (3) for cleaning, whereas the cleaning head (4) features at least one bearing area (7), in particular a cylindrical bearing area (7), by means of which it is mounted on the receptacle (6), whereas a longitudinal direction of the bearing area (7), in particular a longitudinal axis of the cylindrical bearing area (7), defines an axial direction (AR) of the cleaning head (4), characterized in that the cleaning head (4) is mounted in an axial direction (AR) in a floating manner, namely freely movable in both axial directions, on the receptacle (6) and that, by extending the at least one scraper (5a), the cleaning head (4) can be positioned in the axial direction (AR) with respect to a rotor groove of the spinning rotor (3) to be cleaned.
  2. Cleaning device according to claims 1, characterized in that the receptacle (6) features an air chamber (12), which is in connection with the air supply (10) through at least one overflow opening (15).
  3. Cleaning device according to one of the previous claims, characterized in that the at least one scraper (5a), is mounted on the cleaning head (4) in a pivotable manner around a scraper axis (SA).
  4. Cleaning device (1) for cleaning a rotor disk (2) of a spinning rotor (3) with a cleaning head (4), which features at least one cleaning element (5a, 5b) for cleaning the spinning rotor (3), whereas the cleaning head (4) features an air supply (10) and that the at least one cleaning element (5a, 5b) can be actuated by means of compressed air and whereas the at least one cleaning element (5a, 5b) is a blow hole (5b), which can be subjected to compressed air through the air supply (10) of the cleaning head (4) and with a receptacle (6), on which the cleaning head (4) is mounted and which can be fed to the spinning rotor (3) for cleaning, whereas the cleaning head (4) features at least one bearing area (7), in particular a cylindrical bearing area (7), by means of which it is mounted on the receptacle (6), whereas a longitudinal direction of the bearing area (7), in particular a longitudinal axis of the cylindrical bearing area (7), defines an axial direction (AR) of the cleaning head (4),, characterized in that the receptacle (6) features an air chamber (12), which is in connection with the air supply (10) through at least one overflow opening (15) and the cleaning head (4) is mounted in an axial direction (AR) in a floating manner, namely freely movable in both axial directions, on the receptacle (6) and that through the subjecting of the blow hole (5b) with compressed air, the cleaning head (4) can be positioned in the axial direction (AR) with respect to the spinning rotor (3) to be cleaned.
  5. Cleaning device according to one of the previous claims, characterized in that a backlash of the cleaning head (4) in the axial direction, amounts to at least 2 mm, preferably at least 3 mm, and more preferably at least 4 mm.
  6. Cleaning device according to claim 1, 2 or 4, characterized in that the cleaning head (4) features a stop (11), by means of which it can be positioned in the axial direction (AR) with respect to the spinning rotor (3) to be cleaned, in particular with respect to a rotor groove (8) of the spinning rotor to be cleaned (3).
  7. Cleaning device according to one of the claims 2 to 6, characterized in that the air chamber (12) features an exhaust opening (16), which is allocated to a shut-off valve.
EP17182001.2A 2016-07-29 2017-07-19 Cleaning device for cleaning a rotor plate of a spinning rotor Active EP3276056B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016114082.1A DE102016114082A1 (en) 2016-07-29 2016-07-29 Cleaning device for cleaning a rotor cup of a spinning rotor

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EP3276056A1 EP3276056A1 (en) 2018-01-31
EP3276056B1 true EP3276056B1 (en) 2021-09-01

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US (1) US11035057B2 (en)
EP (1) EP3276056B1 (en)
CN (1) CN107661869B (en)
DE (1) DE102016114082A1 (en)

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Publication number Priority date Publication date Assignee Title
CN108754695A (en) * 2018-07-16 2018-11-06 安徽日发纺织机械有限公司 A kind of rotor spinning machine joint trolley automated cleaning revolving cup device
DE102018133367A1 (en) * 2018-12-21 2020-06-25 Maschinenfabrik Rieter Ag Work place of a rotor spinning machine with a cleaning unit and method for operating such a device
CN111974714B (en) * 2020-08-28 2022-05-27 闰大建筑幕墙(湖北)有限公司 Curtain wall veneer cleaning device
CN114635205A (en) * 2022-03-21 2022-06-17 浙江奥佳纺织有限公司 Automatic dust removal device for rotor spinning cup and working method
CN115026063A (en) * 2022-05-05 2022-09-09 安徽同佳电子科技有限公司 Air blowing cleaning device for cleaning rotor

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US4125991A (en) * 1976-06-29 1978-11-21 Hans Stahlecker Mobile servicing device for an open end spinning frame
EP0071893B1 (en) * 1981-08-11 1985-05-15 Maschinenfabrik Rieter Ag Method and device for cleaning open-end spinning rotors
US4480433A (en) * 1983-02-25 1984-11-06 Platt Saco Lowell Corporation Rotor cleaning
CS240753B1 (en) * 1983-06-13 1986-02-13 Oldrich Kase Spinning unit's rotor cleaning device
DE3715934C2 (en) * 1987-05-13 1996-07-18 Schlafhorst & Co W Scraper on a cleaning device of an open-end spinning machine
DE3911946A1 (en) * 1989-04-12 1990-10-18 Schlafhorst & Co W CLEANING DEVICE FOR A ROTOR OF AN OPEN-END SPINNING MACHINE
DE10052672A1 (en) * 2000-10-24 2002-05-02 Schlafhorst & Co W Rotary drive for a spinning rotor during its cleaning
DE10204108B4 (en) * 2002-01-09 2011-05-05 Rieter Ingolstadt Gmbh Cleaning device for a rotor spinning unit
DE50209764D1 (en) * 2002-01-09 2007-05-03 Rieter Ingolstadt Spinnerei Cleaning device for a rotor spinning unit
EP1344852B1 (en) * 2002-03-13 2006-12-20 Rieter Ingolstadt Spinnereimaschinenbau AG Cleaning device comprising scraper elements for cleaning spinning rotors
DE10231484A1 (en) * 2002-03-13 2003-09-25 Rieter Ingolstadt Spinnerei Cleaning device for cleaning a spinning rotor
DE10314936A1 (en) 2002-08-03 2004-02-12 Rieter Ingolstadt Spinnereimaschinenbau Ag Cleaning head for open-end spinning rotor includes spacer that abuts against rotor ledge to ensure axial alignment with rotor groove
DE10347691A1 (en) 2003-10-14 2005-05-19 Sohler-Neuenhauser Gmbh & Co. Kg Cleaning device for textile machines
DE102012005390A1 (en) 2012-03-16 2013-09-19 Oerlikon Textile Gmbh & Co. Kg Spinning device for use in rotor spinning machine i.e. open end rotor spinning machine, has aperture dimensioned with filter, so that spinning low pressure does not fall below during actuation of housing with low pressure

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US11035057B2 (en) 2021-06-15
CN107661869B (en) 2022-08-12
DE102016114082A1 (en) 2018-02-01
US20180030625A1 (en) 2018-02-01
CN107661869A (en) 2018-02-06
EP3276056A1 (en) 2018-01-31

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