EP1966421A1 - Rotor de filage a extremite ouverte pour machine textile qui fabrique des bobines croisees - Google Patents

Rotor de filage a extremite ouverte pour machine textile qui fabrique des bobines croisees

Info

Publication number
EP1966421A1
EP1966421A1 EP06792026A EP06792026A EP1966421A1 EP 1966421 A1 EP1966421 A1 EP 1966421A1 EP 06792026 A EP06792026 A EP 06792026A EP 06792026 A EP06792026 A EP 06792026A EP 1966421 A1 EP1966421 A1 EP 1966421A1
Authority
EP
European Patent Office
Prior art keywords
rotor
cup
groove
region
open
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06792026A
Other languages
German (de)
English (en)
Other versions
EP1966421B1 (fr
EP1966421B2 (fr
Inventor
Heinz-Georg Wassenhoven
Brigitte Riede
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.)
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37441830&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1966421(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP1966421A1 publication Critical patent/EP1966421A1/fr
Publication of EP1966421B1 publication Critical patent/EP1966421B1/fr
Application granted granted Critical
Publication of EP1966421B2 publication Critical patent/EP1966421B2/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • D01H4/10—Rotors

Definitions

  • the invention relates to an open-end spinning rotor for a cheese-producing textile machine with the features of the preamble of claim 1.
  • Such open-end spinning rotors are known for example from EP 1 156 142 Bl.
  • the spinning rotors with their rotor shafts are each supported in a magnetic bearing arrangement and driven by a single motor.
  • the magnetic bearing assemblies of these textile machines each consist of a front and a rear bearing, wherein the bearings in turn each have axially opposed permanent magnet rings.
  • One of these permanent magnet rings is fixed to the stator, while the other permanent magnet ring rotates with the rotor shaft of the spinning rotor.
  • the rotor cup is in each case releasably connected to the rotor shaft in these spinning rotors.
  • the rotor cup can be replaced if necessary, for example, during a wear or a lot change without the rotor shaft must be removed with it.
  • the releasable connection of the rotor cup to the rotor shaft is effected by means of a coupling device having a magnetic device for axially locking the rotor cup on the rotor shaft and a mechanical anti-rotation device.
  • the rotor cups of these known spinning rotors are designed so that they have different, relatively high wall thicknesses in their various areas, for example on the fiber sliding wall, on the rotor groove and on the rotor bottom.
  • the high wall thickness in the rotor bottom of the rotor cup causes these spinning rotors not only have a relatively large moment of inertia, but also to the fact that the center of gravity of these spinning rotors is relatively far forward, in the region of the front bearing of the magnetic bearing assembly.
  • open-end spinning devices are known from DE 199 10 277 A1 whose spinning rotors are each supported by a rotor shaft on a support disk bearing and whose rotor cups are characterized by a streamlined contour and a low weight.
  • the spinning rotor is, however, formed in one piece, that is, a separation of rotor cup and rotor shaft, without the rotor cup and / or the rotor shaft is damaged, hardly possible.
  • the present invention seeks to provide open-end spinning rotors, which are each supported in a magnetic bearing assembly and suitable for high speeds, as well as having a rotor shaft replaceable determinable rotor cup.
  • the inventive design of an open-end spinning rotor with a rotor cup which is manufactured as a thin-walled construction and designed so that the center of mass of the rotor cup is disposed in a region which is disposed behind the fiber slipper, has the advantage that on the one hand minimizes the moment of inertia of the spinning rotor and that on the other hand, the center of gravity of the rotor cup and thus also the center of gravity of the spinning rotor on the whole backward, that is, in a region between the bearings of the magnetic bearing assembly moves.
  • the center of mass of the magnetically supported spinning rotor according to the invention is positioned so that the front magnetic bearing point is slightly less stressed and thus the two bearing points of the magnetic bearing assemblies are loaded more evenly.
  • the rotor cup has a rotor groove with a round groove base and a short, radially arranged support in the region of the rotor base.
  • a mass distribution of the rotor cup can be achieved, which ensures in conjunction with the respective diameter of the rotor groove that the center of gravity of the rotor cup is always in a range spaced from the rotor groove at the level of the inner region of the rotor base or on Height of the connection Federal lies.
  • the distance to the stop edge of the rotor cup is advantageously, as described in claim 3, between 5.75 mm and 7.06 mm.
  • the center of gravity of the rotor cup lies in a region which starts at the rotor groove, at the height of the rotor base or at the rotor base is arranged at the level of the Ranbund.
  • the center of gravity of the rotor cup in the embodiment described in claim 4 the rotor cup from a stop edge of the rotor cup a distance between 5.88 mm and 7.51 mm.
  • the rotor cup in the area of the fiber sliding wall, the rotor groove and the rotor base a nearly constant wall thickness of, as set forth in claim 7, less than 1 mm.
  • Rotary machines manufactured and not only, as already mentioned above, characterized in that they are relatively easy to accelerate and decelerate due to their low moment of inertia and have a relatively far back and thus advantageous center of mass, they also have an extremely precise concentricity.
  • FIG. 1 is a side view of an open-end spinning device with a spinning rotor according to the invention, which is supported with its rotor shaft in a magnetic bearing assembly and driven by a single motor, wherein the rotor cup of the spinning rotor is connected via a coupling device easily releasably connected to the rotor shaft, Fig. 2, the spinning rotor according to the invention in perspective
  • FIG. 3 shows a first embodiment of a rotor cup with a connection bolt fixed in the connection collar of the rotor cup
  • FIG. 4 shows a further embodiment of a rotor cup, likewise with a connection bolt fixed in the connection collar of the rotor cup.
  • Figure 1 is an open-end spinning device 1 with a magnetically mounted and driven by a single motor
  • Such open-end spinning devices 1 each have a
  • Rotor housing 2 in which rotates the rotor cup 26 of a spinning rotor 3 at high speed.
  • the spinning rotor 3 is preferably driven by an electromotive single drive 18 and is supported with its rotor shaft 4 in the front 27 and rear 28 bearings a magnetic bearing assembly 5, which position the spinning rotor 3 both in the radial and in the axial direction.
  • the rotor housing 2 which is open towards the front, is closed by a pivotably mounted cover element 8 during the spinning operation and via a corresponding pneumatic line 10 a negative pressure source 11 is connected, which generates the necessary spin pressure in the rotor housing 2.
  • a so-called channel plate adapter 12 is inserted, which has the thread withdrawal nozzle 13 and the mouth region of the fiber guide 14.
  • a thread withdrawal tube 15 At the thread take-off nozzle 13 is followed, as usual, a thread withdrawal tube 15 at.
  • an opening cylinder housing 17 is fixed on the lid member 8, which is mounted rotatably limited about a pivot axis 16, also an opening cylinder housing 17 is fixed.
  • the cover element 8 has rear bearing brackets 19, 20 for mounting an opening roller 21 or a sliver feed cylinder 22.
  • the opening roller 21 is thereby driven in the region of its host blade 23 by a rotating, machine-long tangential belt 24, while the drive (not shown) of the sliver feed cylinder 22 preferably via a worm gear arrangement, which is connected to a machine-length drive shaft 25.
  • the opening roller 21 and / or the sliver feed cylinder 22 can of course also each be driven by a single drive, for example a stepping motor.
  • the rotor cup 26 of the spinning rotor 3 is connected to the rotor shaft 4 of the spinning rotor 3 via a coupling device designated overall by the reference numeral 29, which can be easily detached as required.
  • the coupling device 29 consists for example of a magnetic device for axial fixation of the components and a mechanical rotation.
  • Rotor cup 26 has in the region of its rotor bottom 6 a Terminal collar 7 with a bore 41 in which, preferably via a press fit, a connecting pin 9 is fixed.
  • the connecting bolt 9 is preferably made at least in its end region of a ferromagnetic material and divided into two sections of approximately equal length, preferably a cylindrical guide portion 38 and formed as an external polygon 36 section.
  • a receiving sleeve 34 is in the tubular rotor shaft 4, preferably also via a press fit, which in addition to the rotor-side permanent magnet ring 39 of the front bearing 27 of the magnetic bearing assembly 5 also has a rotatably mounted inner polygon 35 and a permanent magnet insert 32.
  • the receiving sleeve 34 further has a cylindrical bore 37, which corresponds in the installed state with the guide portion 38 of the connecting bolt 9.
  • the rotor cups 26 of the spinning rotor 3 shown in FIGS. 3 and 4 have, as usual, a rotor opening 30 arranged at the front, a rearwardly diverging fiber sliding wall 31 beginning at the rotor opening 30, a rotor groove 33A or 33B and a rotor bottom 6 with an integrally formed rotor opening Connection collar 7.
  • connection collar 7 In a bore 41 of the connection collar 7 is, preferably via a press fit, a connecting pin 9 can be fixed.
  • the rotor cups 26 are formed as thin-walled components, which has a nearly constant wall thickness WS in the region of
  • the rotor cup 26 of Figure 3 differs from the
  • Rotor cup 26 substantially by the shape of its rotor groove 33A and 33B. That is, the rotor cup 26 shown in FIG. 4, a so-called T-rotor, has a pointed rotor groove 33B with a relatively long, radially arranged support 40B in the region of the rotor bottom 6.
  • Such trained rotor cups 26 are relatively insensitive to dirt deposits.
  • can be 26 produce yarns with such rotor cups, which are ring yarn similar in yarn structure and yarn volume.
  • the center of gravity of such rotor cups 26, depending on the respective rotor diameter D, starting at the rotor groove 33B, lies at the level of the rotor base 6 in the region of the portion 5OD.
  • the distance d or di of the center of mass of the rotor cup 26 from the stop edge 60 of the rotor cup 26 is preferably between 5.88 mm and 7.51 mm in these rotors.
  • G-rotor has a less pointed than a T-rotor
  • Rotor groove 33A which also has only a relatively short radially disposed support 4OA.
  • Rotor diameter D slightly spaced from the rotor groove 33A
  • Rotor cup at a distance b or bi from a stop edge of the rotor cup, which is between 5.75 mm and 7.06 mm.

Landscapes

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

Abstract

L'invention concerne un rotor de filage à extrémité ouverte pour une machine textile qui fabrique des bobines croisées. Le rotor présente une tige de rotor (4) montée à rotation à l'aide d'un système à palier magnétique ainsi qu'une cuvette de rotor (26) qui présente une ouverture frontale de rotor, une paroi (31) de glissement de fibres qui part de l'ouverture du rotor, une rainure (33a) dite de rotor ainsi qu'un fond de rotor (6) sur lequel est formé un collet de raccordement (7). La cuvette de rotor (3) peut être reliée à rotation solidaire et si nécessaire de manière aisément libérable à la tige de rotor (4) par l'intermédiaire d'un raccord (9) qui peut être fixé dans le collet de raccordement (7). L'invention propose de fabriquer et de configurer la cuvette de rotor (26) comme structure à paroi mince de telle sorte que le centre de masse de la cuvette de rotor (26) soit situé dans une zone (50B, 50D) située en arrière de la paroi (31) de glissement des fibres lorsqu'elle est vue depuis l'ouverture (30) du rotor.
EP06792026.4A 2005-12-23 2006-09-13 Rotor de filage a extremite ouverte pour machine textile qui fabrique des bobines croisees Active EP1966421B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005062196A DE102005062196A1 (de) 2005-12-23 2005-12-23 Offenend-Spinnrotor für eine Kreuzspulen herstellende Textilmaschine
PCT/EP2006/008907 WO2007079794A1 (fr) 2005-12-23 2006-09-13 Rotor de filage a extremite ouverte pour machine textile qui fabrique des bobines croisees

Publications (3)

Publication Number Publication Date
EP1966421A1 true EP1966421A1 (fr) 2008-09-10
EP1966421B1 EP1966421B1 (fr) 2012-08-22
EP1966421B2 EP1966421B2 (fr) 2020-07-29

Family

ID=37441830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06792026.4A Active EP1966421B2 (fr) 2005-12-23 2006-09-13 Rotor de filage a extremite ouverte pour machine textile qui fabrique des bobines croisees

Country Status (4)

Country Link
EP (1) EP1966421B2 (fr)
CN (1) CN101316957B (fr)
DE (1) DE102005062196A1 (fr)
WO (1) WO2007079794A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2012590A3 (cs) * 2012-08-30 2014-03-12 Rieter Cz S.R.O. Spřádací rotor pro uložení v elektromagnetickém ložiskovém a hnacím systému pracovního místa rotorového dopřádacího stroje a způsob jeho výroby
DE102012022092A1 (de) * 2012-11-10 2014-05-15 Saurer Germany Gmbh & Co. Kg Offenend-Spinnrotor
DE102015007819A1 (de) * 2015-06-18 2016-12-22 Saurer Germany Gmbh & Co. Kg Spinnrotor für eine mit hohen Rotordrehzahlen arbeitende Offenend-Spinnvorrichtung
CH711652A1 (de) * 2015-10-16 2017-04-28 Rieter Ag Maschf Spindelunterteil für Spindeln einer Ringspinnmaschine.
DE102016109509A1 (de) 2016-05-24 2017-11-30 Rieter Ingolstadt Gmbh Rotorschaft für einen in einer Magnetlageranordnung berührungslos gelagerten Spinnrotor und Spinnrotor
DE102016122595A1 (de) * 2016-11-23 2018-05-24 Maschinenfabrik Rieter Ag Rotortasse und Offenend-Spinnrotor mit einer Rotortasse
CN108360097B (zh) * 2018-03-27 2023-08-04 杭州三相科技有限公司 电机前置的独立直驱式超高速转杯结构及其集群控制系统
DE102018112081A1 (de) * 2018-05-18 2019-11-21 Rieter Ingolstadt Gmbh Verfahren zum Einstellen einer axialen Position eines Rotorantriebs, Rotorspinnvorrichtung, Spinnmaschine sowie Einstelllehre und Sensor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1028197B (it) * 1974-01-30 1979-01-30 Teldix Gmbh Apparato con un motore in rapida rotazione
DE3324129A1 (de) * 1983-07-05 1985-01-17 Fritz 7347 Bad Überkingen Stahlecker Lagerung und antrieb fuer einen spinnrotor einer offenend-spinnvorrichtung
DE3734545A1 (de) * 1987-10-13 1989-05-03 Schubert & Salzer Maschinen Offenend-rotorspinnmaschine
DE3844563A1 (de) * 1988-03-12 1989-11-23 Kernforschungsanlage Juelich Magnetische lagerung mit permanentmagneten zur aufnahme der radialen lagerkraefte
CS271434B1 (en) * 1988-07-28 1990-09-12 Karel Jindra Spinning unit for spindleless spinning frame
DE4020518A1 (de) * 1990-06-28 1992-01-02 Schubert & Salzer Maschinen Offenend-spinnrotor
DE4441087A1 (de) † 1994-11-18 1996-05-23 Rieter Ingolstadt Spinnerei Offenend-Spinnvorrichtung
DE19910277B4 (de) * 1999-03-09 2010-11-04 Oerlikon Textile Gmbh & Co. Kg Spinnrotor für Offenend-Spinnmaschinen
DE10024020A1 (de) † 2000-05-16 2001-11-22 Schlafhorst & Co W Offenend-Spinnrotor
DE10254271A1 (de) * 2002-11-21 2004-06-03 Saurer Gmbh & Co. Kg Offenend-Spinnvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007079794A1 *

Also Published As

Publication number Publication date
EP1966421B1 (fr) 2012-08-22
EP1966421B2 (fr) 2020-07-29
DE102005062196A1 (de) 2007-06-28
CN101316957A (zh) 2008-12-03
WO2007079794A1 (fr) 2007-07-19
CN101316957B (zh) 2011-01-12

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