With Housing For Drive Or Support Patents (Class 57/406)
  • Patent number: 11028503
    Abstract: A method for operating a spinning device of a rotor spinning machine, and associated rotor spinning machine are provided in which a spinning rotor includes a rotor cup and a rotor shaft that is set into rotation with the aid of a drive situated in a drive housing. The drive is operatively connected to the rotor shaft, and the rotor shaft is supported in the drive housing by a bearing. The rotor cup is situated in a rotor housing to which vacuum is applied, and the rotor shaft extends between the drive housing and the rotor housing through a connection opening such that when a vacuum is drawn in the rotor housing during a spinning process, a vacuum is also drawn in the drive housing. Compressed air is feed into the drive housing via an air inlet at intervals to clean one or both of the drive housing and the bearing.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: June 8, 2021
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Markus Kuebler, Constantin Rieger
  • Publication number: 20150033695
    Abstract: In an open-end spinning rotor with a rotor cup, and with a rotor shaft, through which the spinning rotor is supported in a bearing, the rotor shaft and the rotor cup are detachably connected to each other through a coupling device. The coupling device includes a positive-locking connection for the transmission of the turning moment between the rotor cup and the rotor shaft, along with a magnetic device for the axial connection of the rotor shaft and the rotor cup. The rotor shaft features at least one projection with a one turning moment-transmitting area, which engages in a recess of the rotor cup with a turning moment-transmitting counter-area. A socket for a permanent magnet is arranged on the rotor cup.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Inventors: Bernd Loos, Hans Kustermann
  • Publication number: 20140283497
    Abstract: The invention relates to an opening roller (1) for an open-end spinning device with a base body (2) that is detachably connected to a mountings carrier (3) by means of a screw cap (8), whereas the mountings carrier (3) for connecting to the base body (2) in respect of this is rotatable around an axis of rotation (A) from a disengaged position into an engaged position and, from this, further into an end-layer locking position. In accordance with the invention, the screw cap (8) includes at least one securing element (23), which prevents the mountings carrier (3) from, during operation, moving in respect of the base body (2) from the engaged position into the disengaged position.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 25, 2014
    Applicant: Rieter Ingolstadt GmbH
    Inventors: Josef Schermer, Mathias Burchert
  • Publication number: 20130283754
    Abstract: An open-end spinning rotor (1), comprising a rotor shaft (4), a rotor cup (2) and a coupling device (3) releasably connecting the rotor shaft (4) and rotor cup (2). The coupling device (3) has locking bodies (6), arranged in a holding element (5) and lock the rotor cup (2) and the rotor shaft (4) in the axial direction under centrifugal force during operation of the open-end spinning rotor (1). A resilient element (7) is associated with the locking bodies (6) and cooperates with the locking bodies (6) such that the locking bodies (6) also lock the rotor cup (2) to the rotor shaft (4) in the axial direction at a standstill. The holding element (5) is configured as a pin which is formed such that it produces a positive shaft-hub connection between the rotor shaft (4) and rotor cup (2) in conjunction with a correspondingly formed hub (8).
    Type: Application
    Filed: April 8, 2013
    Publication date: October 31, 2013
    Applicant: OERLIKON TEXTILE GmbH & Co., KG.
    Inventor: Heinz-Georg Wassenhoven
  • Patent number: 7377095
    Abstract: The invention relates to an open end spinning device comprising a single-motor driven spinning rotor whose cup is rotationally actuated in the rotor housing which is negatively pressurized and closed by a cover element during a spinning process. According to said invention, the rotor house (2) is embodied in the form of a central element which is fixable to the frame of a textile machine and connects the control (3) of the spinning rotor (21) to the carrier (4) for the cover element (6) provided with a fibre band releasing device (23).
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: May 27, 2008
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Heinz-Georg Wassenhoven, Georg Schmidt, Norbert Coenen, Friedhelm Mistler, Stephan Bühren
  • Patent number: 7200983
    Abstract: A supporting disc for a supporting disc bearing of open-end spinning rotors has a disc-like base body, on whose outer circumference a tire-like covering is applied. On a front side of the supporting disc facing the operator's side of the spinning aggregate, a cylinder-shaped permanent magnet for non-contact speed monitoring is arranged at a distance from the axis of the supporting disc. For the purpose of the correction of mass imbalances, the permanent magnet is inserted into a through bore hole, which is filled out by the permanent magnet only up to a gradation of diameters which serves as a stopping surface. As the permanent magnet is arranged in the transition area between the base body and the tire-like covering, the part of the through bore hole not filled out by the permanent magnet can be filled out by the covering.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: April 10, 2007
    Assignee: Maschinenfabrik Rieter AG
    Inventor: Werner Zott
  • Patent number: 7159382
    Abstract: The invention relates to an open-end spinning machine with a plurality of spinnboxes and rotors (2) arranged in them, in which each spinnbox comprises, among other things, a cover (1) arranged on a front side of the particular associated rotor (2). At least one limitation device (7) for limiting the rotor movement in the direction of the longitudinal axis of the rotor onto the cover (1) is provided, which limitation device (7) covers a circular segment of a possible circular contact area between rotor (2) and cover (1).
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: January 9, 2007
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Edmund Schuller, Josef Schermer, Johann Schmidt
  • Patent number: 6826899
    Abstract: A rotor shaft of an open-end spinning rotor is provided with a peg-like shaft end having a reduced diameter. The shaft end has a front-end supporting surface which can be arranged to a step bearing, said supporting surface being provided with a wear-resistant insert. The reduced diameter of the peg-like shaft end is at least 0.68 times the diameter of the rotor shaft. In addition, the reduced diameter of the shaft end measures at least 0.82 times the length of the peg-like shaft end.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: December 7, 2004
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Mathias Burchert, Friedbert Schmid
  • Publication number: 20040093847
    Abstract: A rotor shaft of an open-end spinning rotor is provided with a peg-like shaft end having a reduced diameter. The shaft end has a front-end supporting surface which can be arranged to a step bearing, said supporting surface being provided with a wear-resistant insert. The reduced diameter of the peg-like shaft end is at least 0.68 times the diameter of the rotor shaft. In addition, the reduced diameter of the shaft end measures at least 0.82 times the length of the peg-like shaft end.
    Type: Application
    Filed: July 8, 2003
    Publication date: May 20, 2004
    Inventors: Mathias Burchert, Friedbert Schmid
  • Patent number: 6729767
    Abstract: To improve the known step bearings for the support of open-end spinning rotors, it is proposed to design the bearing body with a machine-side support and a rest for the spinning rotor. According to the invention, a flat bearing surface constituting one end of the bearing body is provided as the rest for the spinning rotor. The flat bearing surface is preferably designed as a bearing plate of an aerostatic step bearing capable of being subjected to compressed air.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: May 4, 2004
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Edmund Schuller, Manfred Knabel
  • Patent number: 6695479
    Abstract: The invention concerns an open-end spinning apparatus with a spin-rotor, the shaft of which is supported by an aerostatic, radial bearing with an air gap between the bearing assembly and the shaft. The construction material for the bearing surface of the spin-rotor and/or the bearing surface of the radial bearing is polyimide or aramid.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: February 24, 2004
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Romeo Pohn, Bernhard Stand
  • Patent number: 6688775
    Abstract: Proposed is a support disk bearing for an open-end spinning rotor. The support disk possesses a body, which, on its circumferential surface, is designed to receive a cover layer. The cover layer is comprised of rubber, in particular nitrile rubber (NBR). In an advantageously favorable formulation, the cover layer contains an additive for the reduction of its electrical resistance.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: February 10, 2004
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Edmund Schuller, Manfred Knabel
  • Publication number: 20040021383
    Abstract: A godet roll for guiding, heating and conveying yam on the circumference of a hollow-cylindrical godet roll casing. The godet roll casing is seated on a projecting support by at least one magnetic bearing having bearing pole windings, and a heating device with heating pole windings is arranged on the support. Some bearing pole windings and at least one heating pole winding are arranged together in one bearing plane, so that the bearing areas can be heated. Sensors provided for detecting the position of the godet roll casing are arranged outside of an annular chamber formed between the godet roll casing and the support in order to prevent a thermal overload of the sensors.
    Type: Application
    Filed: July 30, 2003
    Publication date: February 5, 2004
    Applicant: Neumag GmbH & Co. KG
    Inventors: Heiner Kudrus, Dietmar Von Zwehl
  • Publication number: 20040000133
    Abstract: A spinning device comprising a spinning box housing; a spinning rotor having a spinning cup on a rotor shaft; a cover element; a traveling belt acting tangentially on the rotor shaft; a rotor brake; a pivotable expander roller moveable within a maximum pivot angle via a pressure lever system connected to the brake gear of the rotor brake between an operative position when the spinning box is closed in an inoperative position wherein the expander roller is automatically lifted off the tangential belt and the rotor brake is applied to the rotor shaft when the spinning box is opened; a brake and locking lever having a locking recess in contact with an arresting roller arranged on the cover element; and an arrangement in the pressure lever system for absorbing shock-like forces acting on the expander roller and for preventing the forces from being transmitted to the brake and locking lever.
    Type: Application
    Filed: March 14, 2003
    Publication date: January 1, 2004
    Applicant: W. Schlafhorst AG & Co.
    Inventors: Heinz-Georg Wassenhoven, Michael Spitzer, Dieter Haaken, Harry Gatzke, Detlef Schelter, Elisabeth Klaczynski, Hans-Josef Schroder
  • Patent number: 6662543
    Abstract: The present invention concerns a procedure for the reworking of a open-end spinning apparatus for a spin rotor, which is carried in the V-notch between support disks and is supported by a ball axial thrust bearing. Where the reworking is concerned, the bearing block of the open-end spinning apparatus is dismounted, the ball axial thrust bearing is removed from the bearing block and in accord with the invention, is replaced by an aerostatic bearing in the bearing block.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: December 16, 2003
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Edmund Schuller, Manfred Knabel
  • Publication number: 20030136100
    Abstract: The present invention concerns a procedure for the reworking of a open-end spinning apparatus for a spin rotor, which is carried in the V-notch between support disks and is supported by a ball axial thrust bearing. Where the reworking is concerned, the bearing block of the open-end spinning apparatus is dismounted, the ball axial thrust bearing is removed from the bearing block and in accord with the invention, is replaced by an aerostatic bearing in the bearing block.
    Type: Application
    Filed: August 22, 2001
    Publication date: July 24, 2003
    Inventors: Edmund Schuller, Manfred Knabel
  • Patent number: 6584758
    Abstract: A supporting disk for supporting a rotor, in particular the rotor in open-end spinning rotors, having a hub ring and a supporting ring positioned on the outer circumference of the hub ring, having a bearing surface for the rotor, the outer circumference of the hub ring and the inner circumference of the supporting ring being connected to each other with form locking; the supporting ring (3), in cross-section, being formed from a running part (4) provided with bearing surface (10) for the rotor and at least two anchor legs (7, 8) extending from running part (4) and directed radially inwardly as well as axially outwardly.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: July 1, 2003
    Assignee: Firma Carl Freudenberg
    Inventor: Roland Fietz
  • Patent number: 6573628
    Abstract: A spinning device of a rotor spinning machine has a spinning rotor made of magnetically hard material, seated for rotation in an air chamber connected with an underpressure source. A stator includes at least two electromagnetic coils is arranged around the outer circumferential surface of the spinning rotor. The spinning rotor is made as a ring consisting of magnetically hard material and magnetized normal to the plane passing through the axis of the spinning rotor.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: June 3, 2003
    Assignee: Rieter Elitex A.S.
    Inventors: Ji{haeck over (r)}í Sloupenský, Josef Ludvícek, Milo{haeck over (s)} Mládek
  • Publication number: 20030093986
    Abstract: An arrangement for an open-end rotor spinning comprises a spinning rotor which is radially supported with a rotatable shaft in a wedge-shaped gap of two supporting disc pairs and axially in a step bearing housing. The shaft can be pulled out from its support from the operator's side of the arrangement and inserted again into the support. For the purpose of cleaning the gap between the back supporting disc pair and the front face side of the step bearing housing, a tube is provided having an entry opening at the operator's side of the arrangement and leading to the area of the step bearing housing and aligned against the shaft with an opening.
    Type: Application
    Filed: November 21, 2002
    Publication date: May 22, 2003
    Inventor: Gerd Stachlecker
  • Patent number: 6530206
    Abstract: Supporting disk for supporting a rotor of an open-end spinning machine, including a hub ring (1) and a supporting ring made of polymeric material secured to its outer circumference (2). The hub ring (1) is formed as a composite part, and is made of at least two different materials.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: March 11, 2003
    Assignee: Firma Carl Freudenberg
    Inventor: Roland Fietz
  • Patent number: 6516601
    Abstract: A method of operating an open-end spinning device (1) whose spinning rotor (3) is supported with its rotor shaft (4) radially and axially positioned via a magnetic bearing arrangement (5) which comprises two magnetic bearings with spaced permanent magnet pairs (33, 34 and 43, 44), a central position control device (50) with actor coils (32, 42), and a rotor position sensor (51). An output signal (ASLS) of the position sensor (51) is processed in the central position control device (50) such that a coil current (i) initiated by a controller (53) is initially regulated toward zero by negative feedback of an integrator (55).
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: February 11, 2003
    Assignee: W. Schlafhorst AG & Co.
    Inventor: Norbert Coenen
  • Patent number: 6497089
    Abstract: The rotor cover (2) of an open-end spinning machine possesses a projecting cover cap (3) with a side recess (4), which, on its end remote from the rotor cover is bordered by a collar (40). This possesses both in the partial zone of its circumferential area containing the collar (40), and in the remaining circumferential zone, essentially the same outer contour. The recess (4) begins, relative to the direction of rotation (f) of the spin rotor 1, between 30° and 130° after the discharge opening (50) of the fiber feed conduit (5) and ends at a section of the of the wall (51) protruding from the radial surface (20) of the rotor cover (2). The recess (4) extends to a radial surface (20) of the rotor cover (2) which radial surface (20) covers the open side of the spin rotor.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: December 24, 2002
    Assignee: Rieter Ingolstadt Spinnereimaschinenbauag
    Inventors: Kurt Lovas, Josef Schermer, Frank Baier
  • Publication number: 20020046558
    Abstract: The rotor cover (2) of an open-end spinning machine possesses a projecting cover cap (3) with a side recess (4), which, on its end remote from the rotor cover is bordered by a collar (40). This possesses both in the partial zone of its circumferential area containing the collar (40), and in the remaining circumferential zone, essentially the same outer contour. The recess (4) begins, relative to the direction of rotation (f) of the spin rotor 1, between 30° and 130° after the discharge opening (50) of the fiber feed conduit (5) and ends at a section of the of the wall (51) protruding from the radial surface (20) of the rotor cover (2). The recess (4) extends to a radial surface (20) of the rotor cover (2) which radial surface (20) covers the open side of the spin rotor.
    Type: Application
    Filed: August 1, 2001
    Publication date: April 25, 2002
    Inventors: Kurt Lovas, Josef Schermer, Baier Frank
  • Publication number: 20020046559
    Abstract: A supporting disk for supporting a rotor, in particular the rotor in open-end spinning rotors, having a hub ring and a supporting ring positioned on the outer circumference of the hub ring, having a bearing surface for the rotor, the outer circumference of the hub ring and the inner circumference of the supporting ring being connected to each other with form locking; the supporting ring (3), in cross-section, being formed from a running part (4) provided with bearing surface (10) for the rotor and at least two anchor legs (7, 8) extending from running part (4) and directed radially inwardly as well as axially outwardly.
    Type: Application
    Filed: August 6, 2001
    Publication date: April 25, 2002
    Inventor: Roland Fietz
  • Patent number: 6367237
    Abstract: Play-free and centering tube coupling for the spindle of a textile machine, which includes at least three driving elements which are centrically arranged to bear against an inner wall of the tube in a tube receptacle connected nonpositively to the spindle shank. The tube receptacle includes a basic body having a thrust piece arranged axially moveably therein and an end piece fixedly connected to the basic body. The driving elements are designed as driving elements and arranged so as to be movable predominantly radially between the basic body and the thrust piece. Guide slopes are in contact with the driving elements and are in the form of a conically designed collar are arranged on the thrust piece, and detaining centrifugal elements displaceable predominantly radially are arranged between the thrust piece and the end piece. At least one of the faces of the thrust piece and of the end piece which are in contact with the detaining centrifugal elements is designed as a guide slope.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: April 9, 2002
    Assignee: Spindelfabrik Neudorf GmbH
    Inventor: Dieter Huss
  • Publication number: 20020033013
    Abstract: An open-end spinning arrangement (1) comprises a stationary spinning box housing (2) arranged on a base frame of a textile machine for seating a high speed spinning rotor (7) in a vacuum-charged rotor housing (8), a sliver opening unit (4) connected to the spinning box housing (2) via a linear guide (3), and a cover element (23) for closing the rotor housing (8). The sliver opening unit (4) is releasably connected to a connecting bracket (30) of the linear guide (3), and an opening roller (12) driven by an individual motor and a sliver draw-in cylinder (14) driven by a step motor (15) are arranged inside the sliver opening unit (4).
    Type: Application
    Filed: September 17, 2001
    Publication date: March 21, 2002
    Inventor: Heinz-Georg Wassenhoven
  • Patent number: 6337525
    Abstract: The present invention relates to a bearing for an open-end spinning rotor. The latter is driven at its rotor shaft by means of a tangential belt in a predetermined direction and is supported in a nip which is formed by at least two bearing disks capable of being driven by the rotor shaft. A bearing disk (at least one) leads in relation to the drive direction of the tangential belt rotating into the nip, and another bearing disk (at least one) trails in relation to the drive direction of the tangential belt rotating out of the nip. The axis of the bearing disk (at least one) rotating into the nip is at a specified distance from the plane which goes through the rotor shafts of the spinning rotors of several adjoining open-end spinning devices. This distance is being smaller than the distance between the axis of the bearing disk (at least one) rotating out of the nip and the rotor shaft plane.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: January 8, 2002
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Erich Bock, Eberhard Grimm, Eugen Hini, Edmund Schuller
  • Patent number: 6298649
    Abstract: An open-end spinning frame (1) having a spinning rotor (3), whose rotor shaft (4) is supported, free of axial thrust, in the bearing wedge of a support disk bearing arrangement (5) and is fixed in place by means of a magnetic axial bearing (18). The axial bearing (18) has a stationary magnetic bearing component (27) fixed on the bearing housing (26), and a rotating magnetic bearing component (44) arranged at the end of the rotor shaft and having at least two annular shoulders (46) defined by recesses (47) in the rotor shaft (4). The sharpness of the annular shoulders (46) is reduced in the area between their outer circumference (58) and the adjoining radial faces (50) of each annular shoulder, e.g., via curved or beveled surfaces in such area, and the base surfaces (49) of the recesses (47) are each connected via rounded sections (51) with the radial faces (50) of the adjoining annular shoulders (46).
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: October 9, 2001
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Heinz-Georg Wassenhoven, Claus-Dieter Landolt
  • Patent number: 6295800
    Abstract: In the case of an apparatus for open-end spinning, a fiber feed channel is arranged between an opening roller and a spinning rotor, which fiber feed channel tapers in a transport direction and which comprises a deflecting zone on its transport path. Immediately after the beginning of the deflecting zone, a bypass opening is provided, through which opening a part of the suction airflow transporting the fibers to the spinning rotor is drawn off. In the area of the opening roller, a bypass air inlet opening is provided additionally to support the suction airflow.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: October 2, 2001
    Inventor: Fritz Stahlecker
  • Patent number: 6289663
    Abstract: A conduit plate adapter (10) for an open-end spinning device (1) which device comprises a vacuum-loadable rotor housing (2) which can be sealed by a cover element (5) and which device comprises a spinning rotor (3) rotating at high speed in the rotor housing (2). The replaceable conduit plate adapter (10) is arranged in a receptacle (7) of the cover element (5) and comprises, as is customary, the mouth area (32) of a fiber guide conduit (12) as well as a yarn withdrawal nozzle (11). The fiber guide conduit section running inside the conduit plate adapter (10) has an entrance opening (28) with a non-circular cross section in the area of the conical contact surface (19) of the conduit plate adapter (10).
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: September 18, 2001
    Assignee: W. Schlafhorst AG & Co.
    Inventor: Hans-Josef Schroder
  • Patent number: 6269622
    Abstract: In rotor spinning devices whose rotors are mounted in a support-disk bearing and in which a support disk (1) has openings (5, 9) serving for the contactless measurement of speed for an optical control of a spinning-start carriage, deposits of dirt, especially fine dust, can build up in said openings (5, 9). This impairs the detection of signals. The portion of the inner surface (19) of the openings (6, 9) of a support disk (1) which is located in the direction of the outer edge of the support disk (1) forms such an angle (&agr;) with a line parallel to the axis of rotation (27) that the buildup of deposits of dirt is prevented.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: August 7, 2001
    Assignee: W. Schlafhorst AG & Co.
    Inventor: Karsten Simon
  • Patent number: 6263657
    Abstract: A supporting plate for the support of a rotor, in particular of an open-end spinning rotor, having a hub ring and a support ring arranged on the exterior periphery of the hub ring. The support ring has a contact surface for the rotor, the exterior periphery of the hub ring and the interior periphery of the support ring are joined to each other with positive locking. The support ring has a cramp-like shape in cross-section and is formed from a bridge part, provided with the contact surface for the rotor, the bridge part having two lateral clamping anchors emerging from the respective ends of the bridge part and oriented to the inside both radially as well as axially.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: July 24, 2001
    Inventor: Roland Fietz
  • Patent number: 6240717
    Abstract: An open-end spinning device (1) with a forwardly-opening vacuum-loaded rotor housing (2), a high speed spinning rotor (3) rotating in the rotor housing and with a fiber conduit plate (4) for closing the rotor housing. The fiber conduit plate (4) has a replaceable conduit-plate adapter (10) forming the mouth area of a fiber guide conduit and a yarn withdrawal jet. The conduit plate adapter (10) is detachably fixed in a receptacle (7) of the fiber conduit plate (4) only in a frictionally connected manner by means of a magnetic coupling (15) which can be easily and rapidly detached when necessary yet is reliable and exact during operation and assembly.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: June 5, 2001
    Assignee: W. Schlafhorst AG & Co.
    Inventor: Brigitte Riede
  • Patent number: 6220761
    Abstract: For a bearing arrangement of an open-end spin rotor, which is rotatably set in the “V” between circumferential rims of support disks, one or more of the support disks (14), which bear the open-end spin rotor, has a circumferential cleaning groove (3). The cleaning groove (3) can be a self closing, endless groove, which runs over the contact surface of the support disk (14), wherein it generally does not run parallel to the edges of the support disk (14). Such a meandering groove formulation of the support disk circumference assures that no deposits of impurities can accumulate on the rotor shaft.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: April 24, 2001
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Erich Bock, Manfred Knabel, Edmund Schuller
  • Patent number: 6220009
    Abstract: A damping device for the spinning rotor (3) of an open-end spinning device (1). The spinning rotor (3) is fixed radially and axially via a magnet support arrangement (43), supported in a galvanically separated manner as regards the housing of the spinning device (1) and rotates with a high rotary frequency. The damping device (42) converts oscillations occurring especially during the acceleration phase and when passing through the natural frequency range directly into friction losses.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: April 24, 2001
    Assignee: W. Schlafhorst AG & Co.
    Inventor: Norbert Coenen
  • Patent number: 6216430
    Abstract: A spinning machine in a plurality of sections has its electrical loads, especially motors, yarn feeders, stretching and heating devices supplied with electrical energy through cable segments stretching the length of the respective machine section and having plug-and-jack connectors at opposite ends. From one of these connectors a section conductor can run to all of the loads of a given type in the respective section. The cable segments are connected together upon assembly of the spinning machine from its sections.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: April 17, 2001
    Assignee: Zinser Textilmaschinen GmbH
    Inventor: Ingo Oppermann
  • Patent number: 6212868
    Abstract: The spinning rotors of open-end spinning aggregates are supported on supporting discs. For the purposes of non-contact revolution counting, a front side of a supporting disc is provided with at least one permanent magnet. A signal receiver of a maintenance device selectively arrangeable at the spinning aggregates is arranged at the permanent magnet. The distance between the permanent magnet and the signal receiver is bridged by a ferromagnetic information transmitter, which is preferably arranged on a swivelling housing section of the spinning aggregate.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: April 10, 2001
    Inventor: Hans Braxmeier
  • Patent number: 6116012
    Abstract: A supporting disk for a rotor of an open-end spinning machine comprising a hub ring made of metallic material and a support ring made of polymer material affixed to the outer circumferential surface of the hub ring, the outer circumferential surface of the hub ring engaging the inner circumferential surface of the support ring. The support ring extends beyond the hub ring in the axial direction on both sides with an equal projecting length.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: September 12, 2000
    Assignee: Firma Carl Freudenberg
    Inventor: Otmar Braun
  • Patent number: 6116011
    Abstract: An open-end spinning machine (1) with a plurality of adjacent open-end spinning units (2) each having a sliver opening device (4) with impurity-discharge openings (10). An impurity-removal device (11) is installed below the impurity-discharge openings (10) and comprises an impurity-removal belt (12) which can be driven in a reciprocating manner. A cleaning carriage (16) is arranged on the impurity-removal belt (12) and is connected by frictional engagement to the impurity-removal belt (12). The cleaning carriage (16) has a cleaning lip (18) which mechanically cleans the areas of the sliver opening devices (4) especially endangered by contamination. The cleaning carriage (12) can be shifted as required relative to the impurity-removal belt (12).
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: September 12, 2000
    Assignee: W. Schalfhorst AG & Co.
    Inventors: Willi Wassen, Ralf Stewert, Lothar Uedinger
  • Patent number: 6105355
    Abstract: An open-end spinning device (1) with a spinning rotor (3) whose rotor cup rotates at a high speed in a vacuum-loaded rotor housing (2) closable by a conduit plate (27). The spinning rotor (3) is supported with its rotor shaft (4) in the bearing nip of a support-disk bearing (5) free of axial thrust and positioned in axial direction by a magnet bearing (18). The direction of rotation (S, Z) of the spinning rotor (3) can be selectively set via the direction of the rotor drive (V or R). The conduit plate (27) comprises a receptacle (34) in which exchangeable conduit-plate adapters (12.sub.S or 12.sub.Z) can be fixed in coordination with the particular direction of rotation (S or Z) of the spinning rotor (3).
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: August 22, 2000
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Lothar Winzen, Wolfgang Radermacher, Hans-Joseph Schroder
  • Patent number: 6095529
    Abstract: An arrangement is provided for sealing the opening of a rotor housing under a low pressure, through which opening a shaft for a spinning rotor extends, which shaft is supported outside of the rotor housing. This arrangement comprises a sealing disk, which is supported floating relative to the opening and which is pressed against a bearing surface by means of a spring element. The floating sealing disk comprises a through bore hole having a narrow tolerance relative to the shaft. The spring element presses against the effect of the low pressure.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: August 1, 2000
    Assignee: Novibra GmbH
    Inventor: Gerd Stahlecker
  • Patent number: 6092357
    Abstract: A support disk bearing (1) for an open-end spinning rotor (9) with support disks (4, 5) arranged in pairs, each of which has a hub body (14) made of a metallic material and a bearing ring (15) made of a polymeric material. On its circumference, the hub body (14) has a radial circumferentially extending profiling (20), between whose V-shaped center structure (21) and lateral ribs (22, 23) the free flanks (24, 25) of an M-shaped bearing ring (15) can be fixed, and which has a thickness (D) which is almost constant in cross section.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: July 25, 2000
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Heinz-Georg Wassenhoven, Claus-Dieter Landolt, Bert Schlomer, Andreas Riese, Arndt Hamann
  • Patent number: 6082091
    Abstract: An open-end spinning device (1) with a spinning rotor (17) which is mounted with its rotor shaft (8) in the V-slots of a support-disk bearing (5) and whose spinning cup (17) rotates at a high speed in a rotor housing (6) which is open to the front and can be loaded by suction. The rotor housing (6) can be closed by a pivotably mounted cover element (10) which comprises a sliver opening device and is arranged so that it can be disengaged if required. The cover element (10) can be attached to the spinning box (2) via a mounting device (20) comprising fork-shaped connecting brackets (22) and pivot bolts (30) rotatably seated in the housing wall (38) of the open-end spinning device (1). If required, the cover element (10) can be easily removed after securing means (32), which are easily accessible, have been loosened.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: July 4, 2000
    Assignee: W. Schlafhrost AG & Co.
    Inventor: Hans Josef Schroder
  • Patent number: 6082090
    Abstract: A method for producing a spinning box frame for an open-end spinning machine wherein lateral elements (2, 3) of a spinning box frame (1) are connected with interposed bracing elements (4, 5, 6) by means of a welding process which substantially prevents the occurrence of heat distortion tensions. The bracing elements (4, 5, 6) are joined by means of a laser welding process, preferably with a CO.sub.2 laser, squarely on the interior wall (20) of the lateral elements (2, 3). The components (2 to 6) of the spinning box frame (1) are fixed in place in a welding device (26), which permits the exact positioning of the individual components during the laser welding process.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: July 4, 2000
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Heinz-Georg Wassenhoven, Claus-Dieter Landolt, Jochen Dressen, Dieter Haaken
  • Patent number: 6067786
    Abstract: An opening device for an open-end spinning aggregate has a housing which takes up an opening roller. The housing includes a base plate arranged perpendicular to the axis of the opening roller. The base plate is covered by a flat metal sheet, which is provided with an anti-adhesive coating. The anti-adhesive coating is preferably a ceramic layer shot through with PTFE.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: May 30, 2000
    Assignee: Wilhelm Stahlecker, GmbH
    Inventor: Friedbert Schmid
  • Patent number: 6067787
    Abstract: An open-end spinning device (1) with a spinning rotor (17) which is mounted with its rotor shaft (8) in the V-slots of a support-disk bearing (5) and whose spinning cup (17) rotates at a high speed in a rotor housing (6) which is open to the front and can be loaded by suction. The rotor housing (6) can be closed by a pivotably mounted cover element (10) which comprises a sliver opening device and is arranged so that it can be disengaged if required. The cover element (10) comprises a locking and unlocking device (20) with locking bolts (23) which can be controlled in a defined manner and which are movably mounted in bearing brackets (22) of the cover element (10). The locking bolts (23) engage during spinning operation in bearing locations (34) on the spinning box frame (2). The cover element (10) can be readily taken off the spinning box frame (2), if required, by appropriately actuating the locking and unlocking device (20).
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: May 30, 2000
    Assignee: W. Schlafhorst AG & Co.
    Inventor: Heinz-Georg Wassenhoven
  • Patent number: 6055801
    Abstract: An open-end spinning machine comprises a plurality of adjacently arranged spinning aggregates. Each spinning aggregate consists essentially of a rotor unit comprising a spinning rotor, and an opening unit for opening a fed sliver into single fibers. The opening unit and the rotor unit each comprise a plurality of components. In order to modernize the open-end spinning machine, at least one of the above mentioned components is replaced by at least one modernized component in such a way that the efficiency of the spinning aggregate is improved.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: May 2, 2000
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 6052985
    Abstract: A device for producing a twisted yarn in a combined spinning and twisting process has two open end spinning rotors positioned in a stationary protective pot, a hollow spindle axle into which the spun yarns produced by the spinning rotors are introduced, and a yarn guide channel extending radially from the spindle axle and driven in rotation about the spindle axis for guiding the yarn formed by the spun yarns. The yarn exits from the yarn guide channel and is guided external to the protective pot counter to the guiding direction within the spindle axle to a centering point positioned on an extension of the spindle axle. A device for supplying a dissolved fiber material to the two open end spinning rotors is provided. Two slide bearings for supporting the spinning rotor shafts, an electric motor with a drive member resting at the spinning rotor shafts, and for each spinning rotor two guide rollers are arranged within the protective pot.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: April 25, 2000
    Assignee: Volkmann GmbH & Co.
    Inventors: Ulrich Ballhausen, Guido Spix
  • Patent number: 6047535
    Abstract: In a method for a contact-free energy and signal transmission for a textile machine between a first stationary part and a second stationary part separated by an air gap, wherein at least one component consisting of an electrically non-conducting material is moved through the air gap, wherein an alternating current signal of a frequency of at least 10 kHz is inductively transmitted by a transformer, having a primary side arranged at the first stationary part and a secondary side arranged at the second stationary part, wherein the primary side and the secondary side are separated by the air gap, a transformer is employed having only one coil pair. Energy and signals are transmitted via the one coil pair by a common carrier signal. The carrier signal provides energy transmission. The signals to be transmitted are imprinted onto the carrier signal as a frequency modulation such that the carrier signal jumps between two frequency values having a fixed spacing.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: April 11, 2000
    Assignee: Volkmann GmbH & Co.
    Inventors: Paul Schroers, Guido Spix, Stefan Kross
  • Patent number: RE42383
    Abstract: An open-end spinning frame (1) having a spinning rotor (3), whose rotor shaft (4) is supported, free of axial thrust, in the bearing wedge of a support disk bearing arrangement (5) and is fixed in place by means of a magnetic axial bearing (18). The axial bearing (18) has a stationary magnetic bearing component (27) fixed on the bearing housing (26), and a rotating magnetic bearing component (44) arranged at the end of the rotor shaft and having at least two annular shoulders (46) defined by recesses (47) in the rotor shaft (4). The sharpness of the annular shoulders (46) is reduced in the area between their outer circumference (58) and the adjoining radial faces (50) of each annular shoulder, e.g., via curved or beveled surfaces in such area, and the base surfaces (49) of the recesses (47) are each connected via rounded sections (51) with the radial faces (50) of the adjoining annular shoulders (46).
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: May 24, 2011
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Heinz-Georg Wassenhoven, Claus-Dieter Landolt