EP1344852B1 - Reinigungsvorrichtung mit Schaberelement zur Reinigung von Spinnrotoren - Google Patents

Reinigungsvorrichtung mit Schaberelement zur Reinigung von Spinnrotoren Download PDF

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Publication number
EP1344852B1
EP1344852B1 EP03002855A EP03002855A EP1344852B1 EP 1344852 B1 EP1344852 B1 EP 1344852B1 EP 03002855 A EP03002855 A EP 03002855A EP 03002855 A EP03002855 A EP 03002855A EP 1344852 B1 EP1344852 B1 EP 1344852B1
Authority
EP
European Patent Office
Prior art keywords
scraper
foregoing
rotor
cleaning apparatus
scraper elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03002855A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1344852A2 (de
EP1344852A3 (de
Inventor
Adalbert Stephan
Ralf Limmer
Gerd Stahlecker
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.)
Rieter Ingolstadt Spinnereimaschinenbau AG
Original Assignee
Rieter Ingolstadt Spinnereimaschinenbau AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE10231484A external-priority patent/DE10231484A1/de
Application filed by Rieter Ingolstadt Spinnereimaschinenbau AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP1344852A2 publication Critical patent/EP1344852A2/de
Publication of EP1344852A3 publication Critical patent/EP1344852A3/de
Application granted granted Critical
Publication of EP1344852B1 publication Critical patent/EP1344852B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/22—Cleaning of running surfaces
    • D01H4/24—Cleaning of running surfaces in rotor spinning

Definitions

  • the invention relates to a cleaning device for cleaning a spinning rotor of a spinning station in a rotor spinning machine, with a deliverable to the spinning rotor cleaning head are arranged on the at least two scraper elements.
  • US Pat. No. 4,339,914 shows a cleaning device which is arranged on a movable maintenance device and can be delivered to a spinning rotor of a rotor spinning machine for cleaning purposes.
  • a scraper is arranged, which is retracted by means of a pneumatic cylinder in the rotor groove of the spinning rotor.
  • the spinning rotor rotates.
  • the scraper must be pressed with a sufficient contact force into the rotor groove.
  • the spinning rotor is loaded asymmetrically, which in particular leads to tilting of the spinning rotor in the camps and due to the need for rotation of the rotor has a unilateral, non-operational load on the spinning rotor result.
  • rotor bearings in particular aerolar bearings and magnetic bearings, the bearings are more sensitive to non-typical loads.
  • DE 26 29 161 shows various embodiments of cleaning devices with different placement of cleaning elements, such as scrapers, brushes and compressed air nozzles.
  • cleaning elements such as scrapers, brushes and compressed air nozzles.
  • two opposing scraper elements of the rotor groove are deliverable, the scraper elements are attached at one end to leaf springs whose another end is in turn on a rotation axis.
  • the leaf springs are biased in the direction of the axis of rotation, so that the scrapers are inserted through the opening of the rotor cup. After insertion, the axis of rotation is rotated and the leaf springs are pulled apart by the centrifugal force of the scrapers until the scrapers lie in the rotor groove.
  • the contact force of the scraper elements on the rotor groove is determined essentially by the centrifugal force. Due to the elastic support, the scraper elements can begin to jump within the rotor groove, so that the cleaning effect is uneven. The adjustment of the contact force by changing the centrifugal force is very limited possible and ensuring the alignment of the cleaning elements to the rotor groove is not guaranteed safe
  • EP 1 201 800 A1 describes a cleaning device for a spinning rotor with a rotary drive for the spinning rotor during cleaning.
  • a cleaning device for a spinning rotor with a rotary drive for the spinning rotor during cleaning.
  • the scrapers are simultaneously pivotable by a scissors joint, wherein the scissors joint is actuated by means of a stepping motor or a linear magnetic drive.
  • the construction of the cleaning device is thereby comparatively expensive, at the same time the replacement of the scraper elements is difficult.
  • a cleaning device for cleaning a spinning rotor is provided with at least two pneumatically extendable scraper elements with which the inner walls, in particular the rotor groove of the spinning rotor pot are scraped.
  • the cleaning head is rotated by a motor or the spinning rotor is rotated, while the cleaning head is held torsionally rigid with the scraper elements.
  • the cleaning head is rotated since, e.g. when the spin box is open, the released parking brake for the rotor does not have to be loosened again separately in order to turn the rotor.
  • the pneumatically extendable scraper elements are spread like a claw after retraction of the cleaning head in the rotor pot.
  • the size of the rotor head when retracting very low so that the cleaning head can be retracted in rotor cup with very small opening widths, and on the other spreader the extended scraper elements within the rotor cup and the stable rotor cup absorbs the forces almost completely on, without that a tilting moment or the like is transmitted to the rotor shaft.
  • the rotor head is mounted floating in the radial direction to the spinning rotor, so that when the scraper on the rotor pot a self-centering takes place.
  • the rotor head on one Deployment arranged, which in turn is arranged on a deliverable to the spinning unit maintenance device.
  • the scraper elements can be arranged at different positions along the circumference of the cleaning head, so that the resulting force is canceled completely or almost completely.
  • an arrangement below 180 ° may be mentioned, in which the scraper elements lie opposite one another on the rotor inner wall.
  • three scraper elements are at 120 ° to each other, so that their force on the rotor plate also compensated again.
  • the force components of the contact force of a plurality of scraper elements in interaction with the spinning rotor pot compensate each other.
  • the pneumatics for delivering at least one scraping element is integrated in a compact manner in the extendable cleaning head. Both aspects can be realized individually or advantageously in combination.
  • the compact construction with pneumatic integrated in the cleaning head is shown below as an embodiment, but is also applicable to a cleaning head with at least one scraper.
  • the at least two scraper elements are extended by a common, pressurized piston.
  • a pneumatically actuated element is required to actuate all the scraper elements and a very compact construction of the cleaning head is made possible.
  • the piston is displaced in the axial direction with respect to the spinning rotor in order to extend the at least one scraper element, while the at least one scraper element predominantly performs a radial outward movement.
  • the depth of the cleaning head shortens and allows an even more compact Construction.
  • the at least two scraper elements are pivotally mounted on the cleaning head. Due to the pivotable mounting of the scraper elements very large swivels are achieved and thus an adaptation to different types of rotors with very different rotor diameters.
  • the retraction into the rotor groove is facilitated if the rotor teller bottom is particularly flat or the fiber treads are particularly long or inclined.
  • the provision of the at least two extended scraper elements after reduction of the air pressure of the pneumatic delivery is effected by a single O-ring, so that not a separate provision must be made for each scraper element. If the securing and resetting of at least one replaceably mounted scraper element by means of an O-ring, then an exchange of worn scraper elements by simply removing the O-ring, the use of new scraper elements and the reassignment of the O-ring. It is therefore not necessary to use tools or parts of the cleaning head - with the exception of the O-ring - dismantle. This results in a very fast maintenance of the cleaning device on the one hand and on the other hand, special, adapted to the new spinning rotor type scraper elements can be used when changing the spinning rotor type.
  • the contaminant residues dissolved by the scraper elements are advantageously blown out of the rotor pot.
  • a control surface for the piston for moving the scraper element about an axis of rotation is advantageously provided on the scraper elements.
  • the scraper element is thereby very easy to control in the installed state and particularly advantageous in terms of the applied and applied forces.
  • By driving the scraper element is tilted about the axis of rotation and pivoted into the rotor.
  • the scraper surface the scraper element moves in the direction of the rotor groove and is thereby positioned so that in a relative movement between the scraper surface and rotor, the rotor groove is cleaned.
  • the applicable torques and forces are very advantageous due to the arrangement of the axis of rotation, drive surface and scraper surface on the scraper element. It can be a metered but also strong pressure of the scraper surface to the rotor groove, whereby the cleaning effect can be influenced very targeted.
  • the scraper elements are arc-shaped or claw-like.
  • the rotor edge is embraced particularly advantageous when pivoting the scraper element and the cleaning of the rotor groove is very easily effected by the tilting movement of the scraper element about the axis of rotation.
  • the axis of rotation of the scraper element is remote from the rotor axis, a central control of a plurality of scraper elements with a piston is possible.
  • the control takes place near the rotor axis, at which several scraper elements are closest.
  • the axis of rotation of the scraper element is arranged in this case at a location at which sufficient space for the attachment of the scraper element is present. If the scraper has an abutment surface between the axis of rotation and the actuation surface, a defined positioning of the scraper in its rest position is possible. This is advantageous in order to avoid a collision of the cleaning device when entering the spinning rotor.
  • control surface of the scraper element and / or the abutment surface is substantially flat.
  • a further drive surface of the scraper element in order to be able to retrieve the scraper element from the working position into the rest position is advantageously arranged on a concave inner side of the scraper. While the first drive surface of the scraper element is adapted to bring the scraper element from the rest position to the working position, this second drive surface is provided to move the scraper element from the working position back to the rest position.
  • the control surface can thereby interact, for example, with an O-ring, which exerts a spring force on the scraper element in the direction of the rest position.
  • the device 1 shown in Figures 1 and 2 is used to clean a stationary, preferably not shown with braking means held spinning rotor 2.
  • braking means held spinning rotor 2 In particular, it is a spinning rotor 2 with today usual small diameter of preferably less than 30 mm.
  • the device 1 contains a cleaning head 3, which is preferably part of a movable maintenance device, not shown.
  • This cleaning head 3 is in the case of maintenance according to the adjustment B and C adjustable and can be introduced through the open front 4 in the interior 5 of the spinning rotor 2, if necessary, see the dash-dotted line position 3 '.
  • the cleaning head 3 serves, in particular, for the purpose of cleaning the fiber collecting groove 6 located in the interior 5 of the spinning rotor 2, in which yarn formation takes place, at specific time intervals during an interruption of the spinning process.
  • the cleaning head 3 has a plurality of preferably designed as a scraper mechanical cleaning elements 7 and additionally a plurality of compressed air nozzles 8.
  • the mechanical cleaning elements 7 can be delivered according to the dash-dotted line position 7 'of the fiber collecting groove 6, while the compressed air nozzles 8 either stationary arranged on the cleaning head 3 or also to a certain degree of the fiber collecting groove 6 can be approximated.
  • a compressed air connection 9 is provided as a bore, via which the required compressed air in a manner to be described can be supplied for the cleaning of the spinning rotor 2. Because the spinning rotor 2, as already mentioned, stands still during the cleaning process, the cleaning head 3 is connected to an only indicated rotary drive A, so that the entire circumference of the fiber collecting groove 6 can be achieved by the cleaning elements 7 and 8.
  • the spinning rotor 2 is arranged in a rotor housing 10, which encloses a vacuum chamber 11, which is sealed tight during operation of the open-end spinning unit. With D, the suction of the installed negative pressure is specified, which serves in the operation of the open-end spinning unit primarily the purpose of supplying the fiber collecting groove 6 to be presented, to be spun fiber material pneumatically.
  • the spinning rotor 2 is associated with a shaft 12 which penetrates the rear wall of the rotor housing 10 is sealed and stored and driven in a manner not shown outside of the rotor housing 10.
  • the cleaning head 3 is exactly aligned with respect to the fiber collecting groove 6 when inserted into the interior 5 of the spinning rotor 2.
  • an axial stop 13 is provided in the interior 5 of the spinning rotor 2, against which the cleaning head 3 is supported and at the same time also serves for the radial centering of the cleaning head 3.
  • the axial stop 13 is slightly conical, with a corresponding conically shaped stop surface 14 of the cleaning head 3 can create centering on the axial stop 13.
  • the cleaning head 3 is suitably employed resiliently in a manner not shown and is then aligned exactly with respect to both the axis of the spinning rotor 2 and with respect to the plane of the fiber collecting groove 6.
  • a movable valve stem 15 is mounted, which then, when the stop surface 14 of the cleaning head 3 against the axial stop 13 of the spinning rotor 2 applies, in the direction of pressure E something is pressed into the cleaning head 3, see the indented Position 15 '.
  • a valve closure 16 releases a passage of the compressed air connection 9, see the released position 16 'in the interior 5 of the spinning rotor 2.
  • both the mechanical cleaning elements 7 and the compressed-air nozzles 8 are connected to the compressed-air connection 9.
  • the compressed air nozzles 8 are provided with the compressed air required for the cleaning, while the mechanical cleaning elements 7 are delivered to the fiber collecting groove 6 by means of this compressed air.
  • both the mechanical cleaning elements 7 and the compressed-air nozzles 8 are each equipped with a piston adjustable in a pneumatic cylinder.
  • a cover 17 is still provided in a manner not shown, which applies to the action of the cleaning head 3 to the front of the rotor housing 10, so that the effective inside 5 of the spinning rotor 2 negative pressure can suck the dissolved during cleaning contaminants.
  • an apparatus for cleaning a stationary open-end spinning rotor with a centrally insertable into the interior of the spinning rotor, connected to a rotary cleaning head having at least one of the fiber collecting groove of the spinning rotor undellable mechanical cleaning element and at least one directed against the fiber collecting groove compressed air nozzle, the with a located in the region of the axis of the cleaning head compressed air connection is provided, wherein for the cleaning head 3 located on the spinning rotor 2 axial stop 13 is provided, when it comes to both the at least one compressed air nozzle 8 and the at least one mechanical cleaning element 7 with the compressed air connection. 9 connected and at least the mechanical cleaning element 7 are delivered by means of compressed air of the fiber collecting groove 6.
  • the axial stop 13 is located in the interior 5 of the spinning rotor 2. Also, the at least one compressed-air nozzle 8 may be deliverable to the fiber collecting groove 6.
  • the axial stop 13 serves at the same time the radial centering of the cleaning head. 3
  • FIG. 3A-3F show in sequence a perspective view, a front view, a cross-sectional view of retracted scrapers, a cross-sectional view of extended scrapers, a side view, and another cross-sectional view of a second embodiment of a cleaning head 20.
  • the cleaning head 20 is replaceable on a deployment device stored and is connected by means of a coupling piece 22 with a drive motor.
  • a drive motor Such a take-out unit with a drive motor is known, for example, from DE 102 05 666.8, whose contents relating to an extension and infeed unit are hereby incorporated by reference.
  • two pneumatically extendable scrapers 21 are pivotally mounted.
  • Fig. 3A shows the scrapers 21 in a partially extended state.
  • the coupling piece 22 has a central compressed-air connection 23 and centering holes 34. After insertion of the coupling piece 22 in a receptacle with compressed air connection (the not shown here Ausfticianerinheit) The coupling piece is held and aligned by means of locking screws which enter into the centering holes 34.
  • a compressed air passage 27 (Fig. 3F) is provided which supplies compressed air to a front compressed air nozzle 25 at the leading edge of the side member and two rear compressed air nozzles 26 at the side member 24 side (Fig. 3A).
  • a corresponding channel 27 and nozzles 25, 26 can be symmetrically provided in both side parts 24.
  • the extension unit not shown here has a position sensor or switch, which signals a control device that the extension unit has extended and has reached the desired position. By this position message is detected that the cleaning head is retracted into the rotor bowl, so that then the compressed air for extending the scraper 21 is applied via an electromagnetic valve.
  • an actuating device 15, 16 as shown in Fig. 1 is provided instead of the position sensor or in addition to the position sensor.
  • an axial alignment of the cleaning head is ensured, while in one embodiment with a position sensor a stop of the cleaning head on the rotor tray bottom is not required and thus axial forces, for example, on an aerolayer are avoided.
  • the take-out unit may have a radially acting for spinning rotor, floating support for the cleaning head, so that after the extension of the scraper or when cleaning a radial self-centering between the rotor and cleaning head.
  • the front compressed air nozzle 25 blows compressed air into the rotor groove of the rotor cup, while the rear compressed air nozzles 26 each have an air flow on the fiber slide wall of the Rotortellers judge.
  • the side parts 24 are seated on a base plate 28, which in turn is followed by the coupling piece 22.
  • a longitudinal groove 35 is formed, in which rest the lower sides of the scraper 21 in the retracted state.
  • two pivot axes 30 are formed transversely thereto, on which the scrapers 21 are pivotally mounted.
  • the axles 30 are cylindrical center portions of a cylinder head bolt screwed into the base plate 28.
  • a U-shaped groove 31 of the scraper 21 encloses the axis 30 only partially, so that the scraper 21 can be removed after swiveling out by about 90 ° from the axis 30 and replaced. This is a very simple and quick replacement of worn scrapers 21 or exchange with other scraper shapes possible.
  • a cylinder bore which also partially extends from the rear into the side parts 24 (FIG. 3D).
  • a piston 32 which is pushed when applying compressed air to the compressed air connection 23 to the front.
  • the pivotally mounted scrapers 21 are pivoted about the axis 30.
  • Fig. 3C shows the basic position of the piston and the scraper 21 in the compressed air-free state
  • Fig. 3D shows the position of the piston 32 and the scraper 21 after application of compressed air to the compressed air port 23, wherein the piston 32 is partially offset to the front and the scrapers 21 have been partially pivoted about the axis 30.
  • an unillustrated stop is provided which limits the adjustment of the piston 32, so that on the one hand, the piston is not pushed out of the bore 33 and on the other hand, the side wall of the piston 32 does not slide between the two scrapers 21.
  • the claw-like extension of the scraper 21 by the displacement of the piston 32 takes place over a wide pivoting range, so that a cleaning head 20 can be used with the same scrapers 21 for different rotor diameters.
  • the adjustment of the air pressure acting on the piston, the leverage and thus the contact force of the doctor blades on the rotor groove over a wide range adjustable.
  • FIG. 4A and 4B show a cross-sectional view and a front view of a third embodiment of a cleaning head 40.
  • Two scrapers 41 are laterally extendable in a linear guide by a piston 48.
  • a spinning rotor 42 is also schematically shown in the cleaning head 40 is retracted before the scrapers 41 were extended.
  • the cleaning head 40 has corresponding to the cleaning head 20 on a coupling piece 43 with central compressed air connection.
  • Through the coupling piece 43 through a base plate 44 and partially between side members 45 extends a cylinder guide for a piston 48.
  • the stroke of the piston 48 is limited by projections on the side members 45, so that the piston 48 is not pushed out of the guide when pressurized.
  • a groove 46 is formed in the side parts 45, into which guide projections 47 arranged on both sides of the scrapers 41 engage.
  • the side parts 45 serve to guide and secure the scrapers 41.
  • An O-ring 49 is stretched around the scraper 41 around, so that in the pressure-free state of the O-ring 49, the scraper pushes back into the basic position shown in Fig. 4A, so that when not spread scrapers, the scraper through the opening width of the rotor cup in this can be retracted.
  • the inclined sliding surfaces on the tip of the piston 48 and on the rear sides of the scrapers 41 slide on each other and convert the forward and backward movement of the piston 48 into a lateral movement of the scrapers 41.
  • the O-ring 49 is removed and the scraper pulled out of the grooves 46 to the side. For a quick replacement or change of the scraper 41 is possible.
  • FIG. 5 shows a perspective view of a scraper element 21.
  • the scraper element 21 has a first leg 37 and a second leg 38.
  • the two legs 37 and 38 are connected together at one end, so that a hook or claws or claw-like shaped component is formed.
  • the groove 31 is arranged, with which the scraper element 21 in the cleaning head 20 of Figure 3 can be fastened.
  • the free end of the second leg 38 has a scraper surface 39 which is inserted and swung out during the cleaning of the spinning rotor in the spinning rotor and performs a scraping movement in the rotor groove by a relative movement to the spinning rotor.
  • the scraper element 21 consists of an inner wall, which is surrounded by a rib 51. As a result, a particularly high stability of the scraper element 21 is achieved.
  • a drive surface 52 is arranged at the ends of the legs 37 and 38.
  • the scraper element 21 is pivoted about the axis 30 of Figure 3.
  • the axis 30 corresponds to the axis of rotation 55 of the scraper element 21.
  • a stop surface 53 is disposed at the first end 37. At the stop surface 53, the rest position of the scraper element 21 is defined. The scraper element 21 strikes against the stop surface 53 on a fixed component of the cleaning head 20 and holds the scraper element 21 in its rest position so as to be able to enter the rotor pot.
  • FIG. 6 shows a side view of the scraper element 21 from FIGS. 5 and 3.
  • the scraper element 21 consists of the two legs 37 and 38, which are connected to one another at one end. On the leg 38, the scraper surface 39 is arranged at an angle. Such an arrangement of the scraper surface 39 facilitates engagement in a rotor groove.
  • the abutment surface 53 is disposed between the groove 31 and the drive surface 52 of the leg 37.
  • the control surface 52 is arranged on the groove 31 facing away from the end of the leg 37.
  • the axis of rotation 55 of the scraper element 21 extends through the groove 31, the replacement of the scraper element 21 is very easily possible.
  • the scraper element 21 only has to be clipped into the axis 30 (FIG.
  • the end of the leg 37 is rounded concentrically to the axis of rotation 55.
  • a further drive surface 50 of the scraper element 21 is arranged on the concave inner side of the scraper element 21. While the first drive surface 52 of the scraper element 21 suitable for it is to bring the scraper element 21 from the rest position to the working position, this second control surface 50 is provided to move the scraper element 21 from the working position back to the rest position. The mode of operation is explained in more detail in FIG.
  • control surface 50 Due to the curved design of the control surface 50, it can cooperate, for example, with a resilient O-ring, which exerts a spring force on the scraper element 21 in the direction of the rest position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Cleaning In General (AREA)
EP03002855A 2002-03-13 2003-02-08 Reinigungsvorrichtung mit Schaberelement zur Reinigung von Spinnrotoren Expired - Lifetime EP1344852B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10212351 2002-03-13
DE10212351 2002-03-13
DE10231484A DE10231484A1 (de) 2002-03-13 2002-07-12 Reinigungsvorrichtung zur Reinigung eines Spinnrotors
DE10231484 2002-07-12

Publications (3)

Publication Number Publication Date
EP1344852A2 EP1344852A2 (de) 2003-09-17
EP1344852A3 EP1344852A3 (de) 2004-03-31
EP1344852B1 true EP1344852B1 (de) 2006-12-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03002855A Expired - Lifetime EP1344852B1 (de) 2002-03-13 2003-02-08 Reinigungsvorrichtung mit Schaberelement zur Reinigung von Spinnrotoren

Country Status (4)

Country Link
US (1) US6910326B2 (zh)
EP (1) EP1344852B1 (zh)
CN (1) CN100487174C (zh)
DE (1) DE50306007D1 (zh)

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DE102005025786A1 (de) * 2005-06-04 2006-12-07 Rieter Ingolstadt Spinnereimaschinenbau Ag Textilmaschine mit Reinigungsvorrichtung
TWI414340B (zh) 2011-05-04 2013-11-11 Ind Tech Res Inst 高壓萃取設備及其萃取方法
DE102015101590A1 (de) * 2015-02-04 2016-08-04 Rieter Ingolstadt Gmbh Reinigungskopf sowie Reinigungsvorrichtung zum Reinigen eines Spinnrotors sowie Verfahren zum Reinigen eines Spinnrotors
DE102016009275A1 (de) * 2016-07-29 2018-02-01 Saurer Germany Gmbh & Co. Kg Reinigungsvorrichtung für einen Spinnrotor
DE102016114082A1 (de) * 2016-07-29 2018-02-01 Maschinenfabrik Rieter Ag Reinigungsvorrichtung zur Reinigung eines Rotortellers eines Spinnrotors
IT201700061110A1 (it) * 2017-06-05 2018-12-05 Savio Macch Tessili Spa Dispositivo di pulizia rotore di un apparato di filatura di tipo open-end, carrello ausiliario di apparato di filatura di tipo open-end e relativo apparato di filatura di tipo open-end
DE102018133367A1 (de) * 2018-12-21 2020-06-25 Maschinenfabrik Rieter Ag Arbeitsstelle einer Rotorspinnmaschine mit einer Reinigungseinheit sowie Verfahren zum Betrieb einer solchen Vorrichtung

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Publication number Publication date
CN1450214A (zh) 2003-10-22
EP1344852A2 (de) 2003-09-17
US6910326B2 (en) 2005-06-28
EP1344852A3 (de) 2004-03-31
DE50306007D1 (de) 2007-02-01
US20040079068A1 (en) 2004-04-29
CN100487174C (zh) 2009-05-13

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