EP3106550B1 - Rotor de filature pour métier à filer à bout libre à haute vitesse de rotation - Google Patents

Rotor de filature pour métier à filer à bout libre à haute vitesse de rotation Download PDF

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Publication number
EP3106550B1
EP3106550B1 EP16001025.2A EP16001025A EP3106550B1 EP 3106550 B1 EP3106550 B1 EP 3106550B1 EP 16001025 A EP16001025 A EP 16001025A EP 3106550 B1 EP3106550 B1 EP 3106550B1
Authority
EP
European Patent Office
Prior art keywords
rotor
spinning
cup
support collar
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.)
Active
Application number
EP16001025.2A
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German (de)
English (en)
Other versions
EP3106550A1 (fr
Inventor
Lothar Winzen
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
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Saurer Spinning Solutions GmbH and Co KG
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Application filed by Saurer Spinning Solutions GmbH and Co KG filed Critical Saurer Spinning Solutions GmbH and Co KG
Publication of EP3106550A1 publication Critical patent/EP3106550A1/fr
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Publication of EP3106550B1 publication Critical patent/EP3106550B1/fr
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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
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • 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 a spinning rotor for a working with high rotor speeds open-end spinning device with a rotor cup having a rotor bottom and an opening and has a designed as a fiber sliding wall wall portion.
  • spinning rotors of open-end spinning devices usually have a rotor shaft for supporting and driving the spinning rotor and a rotor cup arranged on the rotor shaft for producing a yarn.
  • the spinning rotors are increasingly equipped with a single drive and, for example, magnetically supported.
  • the rotor shaft is usually formed in two parts, that is, the rotor shaft consists of a front part on which the rotor cup is fixed, and a rear part, which has the rotor-side components of the drive and the magnetic bearing of the spinning rotor ,
  • the two rotor shaft parts are connected to each other during the spinning operation via a coupling device and, if necessary, detachable from each other.
  • These known spinning rotors have rotor cups, which are each rotated from full material and have an aerodynamically advantageously formed outer surface.
  • the rotor cups of these spinning rotors have an annular wall portion, which is formed so that the thickness of the wall portion from the opening of the rotor cup in the direction of the rotor bottom constantly increases slightly.
  • the rotor bottom of these spinning rotors is designed so that the cross section of the rotor bottom increases from outside to inside. That is, such spinning rotors have their greatest thickness in the region of a central connecting collar, in which the front part of the rotor shaft is mounted.
  • Spinning rotors which can be operated with very high operating speeds and are characterized by a good economy, are also due to the DE 10 2005 021 920 A1 and the DE 10 2007 007 260 A1 known.
  • a first rotor shaft part has the rotor-side components of the spinning rotor drive and the spinning rotor bearing, while the rotor cup is fixed to a second rotor shaft part, which is replaceably mounted in the first rotor shaft part if necessary.
  • connection means which at least partially surround a connection element designed as a cast part become.
  • the casting then forms a positive connection between the front rotor shaft part and the rotor cup.
  • spinning rotors are known whose rotor cups are produced by chipless deformation.
  • these known spinning rotors serves as a starting material for the rotor cup a cold-rolled fine steel sheet, which is formed by means of appropriate tools to a rotor cup.
  • the reinforcement is formed either as a crimp arranged in the region of the rotor cup opening, or as a ring which is placed on the outer circumference of the rotor cup in the area of the rotor cup opening.
  • the present invention seeks to develop rotational speed fixed spinning rotors, that is, spinning rotors, with which high speeds> 150 000 min -1 can be realized easily and reliably.
  • a spinning rotor which is characterized in that the rotor cup in the transition region between the rotor bottom and the annular wall portion has a pointing away from the opening of the rotor cup support collar.
  • the annular wall section is thin-walled with a wall thickness of less than 1.5 mm.
  • the rotor bottom may preferably have a connection collar for fastening the rotor shaft.
  • the rotor bottom may be formed integrally with the rotor shaft.
  • the inventive design of spinning rotors has the advantage that with such spinning rotors easily and safely high rotor speeds of over 150 000 min -1 can be realized without dangerous material stresses occur in the spinning rotors.
  • the support collar is designed as a rotationally symmetrical ring. Such a design can ensure that during the operation of the spinning rotor by the support collar no unilaterally acting centrifugal forces are generated, which would lead to an additional material stress of the rotor cup.
  • the support collar has a substantially triangular cross-sectional area and is integrally formed on the back of the rotor bottom of the rotor cup.
  • the support collar has a depth which corresponds to less than one third of the length of the rotor cup. That is, in practice, the depth of the support collar is preferably between 2 and 5 mm.
  • FIG. 1 is an open-end spinning device 1 with a magnetically mounted and single motor driven spinning rotor 3 is shown.
  • Such open-end spinning devices 1 are known per se and for example in the EP 0 972 868 A2 described in relative detail.
  • 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 during spinning by a pivotally mounted cover element 8 and connected via a corresponding pneumatic line 10 to a vacuum source 11, which generates the spinning vacuum required in the rotor housing 2.
  • a so-called channel plate adapter 12 which has the yarn draw-off nozzle 13 and the mouth region of the fiber guide channel 14, is embedded in the cover element 8.
  • a thread withdrawal tube 15 At the thread take-off nozzle 13 is followed, as usual, a thread withdrawal tube 15 at.
  • the cover element 8 On the lid member 8, which is mounted rotatably limited about a pivot axis 16, also an opening cylinder housing 17 is fixed. Furthermore, 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 whorl 23 by a rotating, machine-long tangential belt 24, while the drive (not shown) of the sliver feed cylinder 22 is 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 spinning rotor 3 of the open-end spinning device 1 is driven by a single electric motor drive 18, the rotor-side component is designated by the reference numeral 33.
  • the rotor shaft 4 has, as shown in the embodiment, a rear rotor shaft part 4A equipped with the rotor-side magnetic bearing components of the front and rear bearings 27, 28 and a front rotor shaft part 4B to which the rotor cup 26 is fixed.
  • the rotor cup 26 of the spinning rotor 3 which is inextricably connected to the front rotor shaft portion 4A is, as in FIG. 2 represented connected via a generally designated by the reference numeral 29 coupling device with the rear rotor shaft portion 4B.
  • the coupling device 29 consists for example of a magnetic device 32 for the axial fixing of the components 4A, 4B and a mechanical anti-rotation 35, 36th
  • the trained as a relatively thin-walled construction rotor cup 26 has in the region of its rotor base 6 a connecting collar 7 with a bore 41 in which, preferably via a press fit, which is designed as a connecting bolt, front rotor shaft portion 4A is fixed.
  • the rotor shaft portion 4A 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 further defined, which has a rotatably mounted inner polygon 35 and a permanent magnet insert 32.
  • the rotor shaft portion 4B also has a cylindrical bore 37, which in the installed state corresponds to the guide portion 38 of the front rotor shaft portion 4A.
  • the rotor cup 26 as usual, a front-side opening 30, a beginning at the opening 30, diverging to the rear, acting as a fiber sliding wall section 31 and a rotor bottom 6 with a molded connection collar 7.
  • the rotor cup 26 is formed overall as a relatively thin-walled component and has in the region of the wall portion 31 has a nearly constant wall thickness, while in the region of the rotor bottom 6, the wall thickness increases from outside to inside.
  • a connecting collar 7 is integrally formed on the rotor bottom 6, which has a bore 41 for receiving the front rotor shaft portion 4B. That is, in the bore 41 of the connection collar 7, preferably via a press fit, designed as a connecting bolt, front rotor shaft portion 4B set.
  • the rotor cup 26 further has, in the connection region between the wall section 31 and the rotor bottom 6, a support collar 9 pointing away from the opening of the rotor cup and according to the invention.
  • This support collar 9 is advantageously designed as a rotationally symmetrical ring and has a substantially triangular cross-sectional area (Q).
  • the support collar 9 is integrally formed on the back 39 of the rotor base 6 of the rotor cup 26 and preferably has a depth (T SK ), which corresponds to less than one third of the length (L) of the rotor cup 26.
  • the depth (T SK ) of the support collar 9 is preferably between 2 and 5 mm.

Landscapes

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

Claims (6)

  1. Rotor de filature (3) pour un dispositif de bobinage à bout libre (1) travaillant à des vitesses de rotation du rotor élevées de plus de 150 000 min-1, avec une cloche de rotor (26) présentant un fond de rotor (6) ainsi qu'une ouverture (30) et disposant d'une partie de paroi annulaire (31) formée en tant que toboggan de fibres,
    caractérisé en ce
    que la cloche de rotor (26) présente, dans la zone de transition entre le fond de rotor (6) et la partie de paroi annulaire (31), une collerette (9) s'éloignant de l'ouverture (30) de la cloche de rotor (26) et en ce que la partie de paroi présente une épaisseur de paroi de moins de 1,5 mm.
  2. Rotor de filature selon la revendication 1, caractérisé en ce que la collerette (9) est formée en tant qu'anneau à rotation asymétrique.
  3. Rotor de filature selon la revendication 1 ou 2, caractérisé en ce que la collerette (9) présente une surface de section transversale (Q) principalement triangulaire.
  4. Rotor de filature selon l'une des revendications précédentes, caractérisé en ce que la collerette (9) est formée en une pièce à l'arrière (39) du fond de rotor (6).
  5. Rotor de filature selon l'une des revendications précédentes, caractérisé en ce que la collerette (9) présente une profondeur (TSK) inférieure à un tiers de la longueur (L) de la partie de paroi (31) de la cloche de rotor (26).
  6. Rotor de filature selon la revendication 5, caractérisé en ce que la profondeur (TSK) de la collerette (9) est de 2 à 5 mm.
EP16001025.2A 2015-06-18 2016-05-06 Rotor de filature pour métier à filer à bout libre à haute vitesse de rotation Active EP3106550B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015007819.4A DE102015007819A1 (de) 2015-06-18 2015-06-18 Spinnrotor für eine mit hohen Rotordrehzahlen arbeitende Offenend-Spinnvorrichtung

Publications (2)

Publication Number Publication Date
EP3106550A1 EP3106550A1 (fr) 2016-12-21
EP3106550B1 true EP3106550B1 (fr) 2019-07-10

Family

ID=55919571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16001025.2A Active EP3106550B1 (fr) 2015-06-18 2016-05-06 Rotor de filature pour métier à filer à bout libre à haute vitesse de rotation

Country Status (6)

Country Link
US (1) US10023980B2 (fr)
EP (1) EP3106550B1 (fr)
CN (1) CN106256934B (fr)
BR (1) BR102016012392A2 (fr)
DE (1) DE102015007819A1 (fr)
MX (1) MX2016007937A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017113029A1 (de) * 2017-06-13 2018-12-13 Maschinenfabrik Rieter Ag Verfahren zur Herstellung einer Rotortasse für einen Offenend-Spinnrotor sowie Rotortasse für einen Offenend-Spinnrotor
DE102018112594A1 (de) * 2018-05-25 2019-11-28 Maschinenfabrik Rieter Ag Verfahren zum Vorbereiten eines Garns zum Anspinnen an einer Rotorspinnvorrichtung einer Rotorspinnmaschine sowie Rotorspinnmaschine
CN109554785A (zh) * 2019-01-21 2019-04-02 杭州三相科技有限公司 一种直驱式转杯及具有该直驱式转杯的转杯集群控制系统

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FR2189546B1 (fr) * 1972-06-23 1974-10-25 Mulhouse Alsac Const Mec
DE2234422B1 (de) * 1972-07-13 1973-11-08 SKF Kugellagerfabnken GmbH, 8720 Schweinfurt Spinnvorrichtung zum offen-endspinnen
CH593356A5 (fr) * 1975-04-11 1977-11-30 Rieter Ag Maschf
DE2528976A1 (de) * 1975-06-28 1976-12-30 Krupp Gmbh Spinnrotor fuer offen-end-spinneinheiten
DE2544503A1 (de) * 1975-10-04 1977-04-07 Schubert & Salzer Maschinen Offen-end-spinnvorrichtung
DE2550971A1 (de) * 1975-11-13 1977-05-18 Krupp Gmbh Spinnrotor fuer offen-end-spinneinheiten
DE2708936C2 (de) * 1977-03-02 1993-07-29 Fritz 7347 Bad Überkingen Stahlecker Verfahren und Vorrichtung zum Anspinnen eines Fadens an Spinnaggregaten einer Offenend-Spinnmaschine
JPS54125735A (en) * 1978-03-20 1979-09-29 Toyoda Automatic Loom Works Rotary spinning chamber in opennend spinning frame
FR2425484A1 (fr) * 1978-05-09 1979-12-07 Alsacienne Constr Meca Perfectionnement aux rotors de dispositifs de filature de fibres liberees
JPS55164375U (fr) * 1979-05-14 1980-11-26
CS238202B1 (en) * 1982-05-31 1985-11-13 Zdenek Rajsigl High-speed rotor resilient mounting
DE3227479C2 (de) * 1982-07-22 1985-07-18 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Spanlos geformter Offenend-Spinnrotor sowie Verfahren zur Herstellung eines solchen Offenend-Spinnrotors
DE3326405C2 (de) * 1983-07-22 1986-04-10 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Offenend-Rotorspinnvorrichtung
US5718110A (en) * 1993-02-12 1998-02-17 Novibra Gmbh Arrangement for open-end rotor spinning
DE4409992A1 (de) * 1994-03-23 1995-09-28 Skf Textilmasch Komponenten Einzelmotorischer Antrieb eines schaftlosen Spinnrotors einer Offenend-Spinnmaschine
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Also Published As

Publication number Publication date
BR102016012392A2 (pt) 2016-12-27
EP3106550A1 (fr) 2016-12-21
MX2016007937A (es) 2016-12-19
CN106256934A (zh) 2016-12-28
DE102015007819A1 (de) 2016-12-22
US10023980B2 (en) 2018-07-17
US20160369429A1 (en) 2016-12-22
CN106256934B (zh) 2019-02-19

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