EP0805224A2 - Rotor de filage à bout libre - Google Patents

Rotor de filage à bout libre Download PDF

Info

Publication number
EP0805224A2
EP0805224A2 EP97104251A EP97104251A EP0805224A2 EP 0805224 A2 EP0805224 A2 EP 0805224A2 EP 97104251 A EP97104251 A EP 97104251A EP 97104251 A EP97104251 A EP 97104251A EP 0805224 A2 EP0805224 A2 EP 0805224A2
Authority
EP
European Patent Office
Prior art keywords
rotor
pot
carrier part
open
coupling
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.)
Withdrawn
Application number
EP97104251A
Other languages
German (de)
English (en)
Other versions
EP0805224A3 (fr
Inventor
Helmut Baumgartner
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 DE1996118027 external-priority patent/DE19618027A1/de
Application filed by Rieter Ingolstadt Spinnereimaschinenbau AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP0805224A2 publication Critical patent/EP0805224A2/fr
Publication of EP0805224A3 publication Critical patent/EP0805224A3/fr
Withdrawn legal-status Critical Current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
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • D01H4/10—Rotors

Definitions

  • the present application relates to an open-end spinning rotor according to the preamble of claim 1.
  • a spinning rotor is known in which the rotor pot is connected to the rotor shaft via a coupling arrangement.
  • the coupling arrangement is designed either on the rotor pot or on the rotor shaft.
  • the coupling arrangement in which the coupling arrangement is fastened to the rotor shaft, it consists of two elastic hooks which engage in an undercut on the rotor pot when the rotor pot and rotor shaft are joined together. This undercut is in the form of an oblique surface.
  • the hooks press on these inclined surfaces due to the centrifugal force, as a result of which the pot of the spinning rotor is drawn in the direction of the rotor shaft, so that the connection between the rotor pot and the rotor shaft is intensive and secure even when the spinning rotor is in operation.
  • the clutch arrangement is attached to the rotor plate.
  • the object of the present application is to avoid the disadvantages of the prior art and to propose an open-end spinning device with a spinning rotor which is simpler in construction and less expensive to produce.
  • the present object is achieved by the features of patent claim 1.
  • the inventive design of an open-end spinning rotor ensures that both the carrier part and the rotor pot can be designed simply, so that they can be manufactured inexpensively, which is particularly necessary because both the rotor pot and the part of the carrier part are wear and replacement parts.
  • the coupling itself is subject to practically no wear and tear and can be used again and again. It can also be produced inexpensively and in particular in a simple manner, because it is not formed in one piece with a rotor pot or carrier part.
  • the design of the coupling is particularly advantageous if it is designed with locking bodies which become effective as a result of the centrifugal force during operation of the spinning rotor.
  • spherical locking bodies have the advantage that they offer favorable geometric conditions for interacting with the surfaces on the support part or rotor pot which cooperate with them.
  • At least one receptacle for the coupling in the form of a screw head which cooperates with the rotor pot in a form-fitting manner. This ensures that the rotor cup is securely fixed to the coupling. It when the rotor pot has a central bore through which the clutch is passed so that it with her screw-head-shaped part pulls the rotor base against the carrier part. It is particularly advantageous if the locking bodies cooperate with inclined surfaces, if these are inclined in such a way that pressing the locking bodies produces an axial force component as a result of the centrifugal force, as a result of which the rotor pot and carrier part are pressed against one another.
  • both the first receptacle of the clutch, which grips the rotor pot is formed with locking bodies, and the second receptacle, which grips the carrier part. It is then particularly favorable to design both counter surfaces, both on the rotor pot and on the carrier part, as the surface inclined against the axis of rotation of the rotor pot, in such a way that a force component by the locking bodies on these surfaces causes the rotor pot and carrier part to be pressed against one another . This ensures a secure connection between the two parts, especially at high speeds. In a favorable embodiment of the coupling, this has a handle or an attachment for a tool, for. B.
  • a coupling point for coupling a trigger device so that the clutch can be easily removed to disassemble the spinning rotor into its components or to separate the clutch from the rotor pot.
  • This advantageously allows disassembly of the coupling and thus also of the rotor pot, in which there is no load on the carrier part.
  • a pulling device used, for example, can be supported on the rotor pot when the clutch is removed. This is particularly advantageous in the case of open-end spinning devices in which the carrier part cannot be removed easily from the storage of the spinning rotor, e.g. B. in storage in which the shaft of the spinning rotor is mounted by means of ball bearings.
  • the coupling connects the rotor pot and the support part to one another in such a way that a positive connection between the coupling to the rotor pot and the support part is produced.
  • This advantageously ensures that there is no relative movement in the circumferential direction between the carrier part and the rotor pot. This is particularly important when accelerating the spinning rotor and braking it to a standstill.
  • the positive connection is made via the coupling, for which purpose it is connected to both the rotor pot and the carrier part in a positive manner in the circumferential direction of the spinning rotor.
  • the spinning rotor it is designed to achieve the same purpose so that the The rotor pot is designed in relation to the carrier part in the circumferential direction so that the two cannot twist with respect to one another.
  • FIG. 1 shows an open-end spinning rotor 1 designed according to the invention, consisting of a rotor pot 11, a carrier part 12 and a coupling 2.
  • the rotor pot 11 and carrier part 12 are connected to one another via the coupling 2.
  • the clutch 2 is guided through a bore 111 in the rotor cup 11 into the carrier part 12.
  • the coupling With its first receptacle 21, which is designed like a screw head, the coupling is supported on the bottom 110 of the rotor pot 11.
  • the second receptacle 22 of the coupling 2 detects the carrier part 12 via two locking bodies 25 which are designed as balls.
  • the locking bodies 25 are pressed outwards via the elastic element 26, viewed in relation to the axis of rotation of the spinning rotor, as a result of which they are pressed against the inclined surface 3 of the carrier part 12.
  • the inclined surface 3 is the outer surface of a conically enlarged bore 121 of the carrier part 12.
  • the elastic element 26 is designed in the form of a rubber block, which is arranged between the locking bodies 25. in the 1, the elastic element 26 is under pressure and presses the locking body 25 outwards onto the inclined surface 3, as a result of which the coupling 2 pulls the rotor pot 11 in the direction of the carrier part 12 via the first receptacle 21.
  • the coupling is removed from the carrier part 12 together with the rotor pot 11.
  • the locking bodies 25 are pressed inwards against the elastic element 26 and the coupling is pulled out of the bore 121 of the carrier part 12.
  • it then only needs to be pushed through the bore 111 in the rotor pot 11.
  • the spinning rotor 1 is in operation, it is set in rotation, as a result of which the locking bodies 25 are pressed radially outward against the inclined surface 3 as a result of the centrifugal force and bring about a secure locking between the rotor pot and the carrier part.
  • the rotor pot 11 has a centering surface 13 which corresponds to the wall of the bore 110.
  • the carrier part 12 likewise has a centering surface 14 which corresponds to the wall of the bore 121 in its cylindrical part.
  • the centering surfaces 13 and 14 work together with the centering surface 27 of the clutch 2.
  • the centering surface 27 of the coupling 2 corresponds to its cylindrical outer surface.
  • the carrier part 12 of the spinning rotor 1 of Figure 1 is composed of several parts. In particular, the part of the carrier part 12 facing away from the rotor pot 11 serves to mount and drive the spinning rotor 1 in a known manner.
  • Figure 2 shows a spinning rotor 1, which is mounted by means of a shaft 10.
  • the storage can be carried out in a known manner by support disks, which are arranged, for example, in two pairs or by direct mounting of the shaft 10 via roller bearings or air bearings.
  • the storage of the spinning rotor is not important in view of the present invention.
  • the shaft 10 of the spinning rotor 1 from FIG. 2 merges into the carrier part 12, the design of which is like that of the carrier part from FIG. 1.
  • the receptacle 21 of the clutch 2 has two holes 210, into which two mandrels of a trigger device, not shown, can engage in order to pull the clutch 2 out of the carrier part 12.
  • the holes 210 form a coupling point for the trigger device, which is supported when the coupling is pulled out against the bottom of the rotor pot 11, so that the removal of the Coupling without a load on the bearing of the spinning rotor, such as. B. also tensile or compressive forces is possible.
  • FIG. 3 shows a shaftless spinning rotor similar to that of FIG. 1.
  • the clutch 2 has a second receptacle 22, which, like that of FIG. 1, is designed with locking bodies 25 and cooperates with the latter via an inclined surface 3 of the carrier part 12.
  • the first receptacle 21 is designed similar to a screw head of a countersunk screw. This has the advantage that the bottom 110 of the rotor pot 11 forms a flat surface, which can be advantageous under certain circumstances for the spinning operation of the spinning rotor 1.
  • the elastic element 26 here, unlike that of Figure 1, consist of a spring-loaded ball 260, which is pressed by the loading spring 261 in the direction of the locking body 25, so that they also apply to the inclined surface 3 when the spinning rotor is at a standstill and for ensure a locking of the spinning rotor and rotor pot.
  • the centering of the rotor pot on the carrier part in FIG. 3 takes place via part of a conical lateral surface 270 of the carrier part, with which a corresponding centering surface 271 of the rotor pot 11 cooperates.
  • the clutch 2 of Figure 3 is shown enlarged in Figure 4.
  • the locking elements 25 are guided in transverse bores 250 and, as a result, project radially out of the coupling 2 due to the pressure of the elastic element 26.
  • the lower edge 251 of the transverse bores is so reduced in diameter that the locking bodies 25 cannot completely come out radially from the coupling 2. This prevents the locking elements from falling out of the coupling.
  • the elastic element 26 sits in an axial bore 260, which is closed at its open end with a closure body 261, so that neither the elastic element 26 nor the locking body 25 can fall out of the coupling 2.
  • the locking bodies 25 are designed as balls in the representations of FIGS. 1 to 4, but can also be designed as cylinders or geometrically acting bodies.
  • the coupling 2 can also be designed as a non-rotationally symmetrical part, for example with a square cross section.
  • the openings in the rotor cup and support part are then trained accordingly.
  • the same effect can also be achieved in that the contact surfaces between the rotor pot 11 and the support part 12 are designed such that a rotational movement relative to one another is not possible.
  • the carrier part can equally well have one or more pins (not shown) inserted in the axial direction, which engage axially in the rotor pot in order to prevent twisting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP97104251A 1996-05-04 1997-03-13 Rotor de filage à bout libre Withdrawn EP0805224A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19618027 1996-05-04
DE1996118027 DE19618027A1 (de) 1996-05-04 1996-05-04 Offenend-Spinnrotor
DE19620121 1996-05-18
DE19620121 1996-05-18

Publications (2)

Publication Number Publication Date
EP0805224A2 true EP0805224A2 (fr) 1997-11-05
EP0805224A3 EP0805224A3 (fr) 1997-11-19

Family

ID=26025417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104251A Withdrawn EP0805224A3 (fr) 1996-05-04 1997-03-13 Rotor de filage à bout libre

Country Status (4)

Country Link
US (1) US5832711A (fr)
EP (1) EP0805224A3 (fr)
CZ (1) CZ288200B6 (fr)
SK (1) SK53097A3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004111320A1 (fr) * 2003-06-14 2004-12-23 Saurer Gmbh & Co. Kg Rotor pour un dispositif de filature a rotor a fibres liberees
EP2657379A3 (fr) * 2012-04-28 2014-04-16 Saurer Germany GmbH & Co. KG Rotor de tissage à extrémité ouverte
EP2730686A1 (fr) * 2012-11-10 2014-05-14 Saurer Germany GmbH & Co. KG Rotor de filage à extrémité ouverte

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013108199A1 (de) 2013-07-31 2015-02-05 Maschinenfabrik Rieter Ag Offenend-Spinnrotor mit einer Rotortasse, einem Rotorschaft sowie einer Kupplungsvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639763A1 (de) * 1976-09-03 1978-03-16 Fritz Stahlecker Lagerung fuer einen offenend-spinnrotor
DE2745195A1 (de) * 1976-10-19 1978-04-27 Vyzk Ustav Bavlnarsky Spinneinheit fuer eine offen-end- spinnmaschine
DE3815182A1 (de) * 1988-05-04 1989-11-16 Wolfgang Grahamer Spinnrotor
US5634326A (en) * 1994-11-29 1997-06-03 Wanger; Gerhard Spindle for gas bearing of a rapidly rotating tool, in particular for aerostatic bearing of an open-end spinning rotor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU311541A1 (ru) * 1969-08-18 1979-08-30 Центральный научно-исследовательский институт хлопчатобумажной промышленности Приспособление дл зажима скручиваемой волокнистой мычки к устройству дл бескольцевого пр дени
DE2939326C2 (de) * 1979-09-28 1982-05-19 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Offenend-Spinnrotor
DE3212785C3 (de) * 1982-04-06 1987-08-20 Schubert & Salzer Maschinen Offenend-spinnrotor
DE4009374A1 (de) * 1990-03-23 1991-09-26 Schlafhorst & Co W Spinnrotor fuer eine offen-end-spinnvorrichtung
DE4020518A1 (de) * 1990-06-28 1992-01-02 Schubert & Salzer Maschinen Offenend-spinnrotor
DE4312365A1 (de) * 1993-04-16 1994-10-20 Rieter Ingolstadt Spinnerei Offenend-Spinnrotor
DE4342539A1 (de) * 1993-12-14 1995-06-22 Skf Textilmasch Komponenten Schaftloser Spinnrotor einer Offenend-Spinnmaschine
DE9319151U1 (de) * 1993-12-14 1994-03-03 Skf Textilmasch Komponenten Schaftloser Spinnrotor einer Offenend-Spinnmaschine
DE4344012A1 (de) * 1993-12-23 1995-06-29 Rieter Ingolstadt Spinnerei Offenend-Spinnrotor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639763A1 (de) * 1976-09-03 1978-03-16 Fritz Stahlecker Lagerung fuer einen offenend-spinnrotor
DE2745195A1 (de) * 1976-10-19 1978-04-27 Vyzk Ustav Bavlnarsky Spinneinheit fuer eine offen-end- spinnmaschine
DE3815182A1 (de) * 1988-05-04 1989-11-16 Wolfgang Grahamer Spinnrotor
US5634326A (en) * 1994-11-29 1997-06-03 Wanger; Gerhard Spindle for gas bearing of a rapidly rotating tool, in particular for aerostatic bearing of an open-end spinning rotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch, Week 8015 Derwent Publications Ltd., London, GB; Class F01, AN 80-26682C XP002041087 & SU 311 541 A (CELLULOSE PAPER IND RES) , 30.August 1979 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004111320A1 (fr) * 2003-06-14 2004-12-23 Saurer Gmbh & Co. Kg Rotor pour un dispositif de filature a rotor a fibres liberees
EP2657379A3 (fr) * 2012-04-28 2014-04-16 Saurer Germany GmbH & Co. KG Rotor de tissage à extrémité ouverte
EP2730686A1 (fr) * 2012-11-10 2014-05-14 Saurer Germany GmbH & Co. KG Rotor de filage à extrémité ouverte
CN103806144B (zh) * 2012-11-10 2017-04-26 索若德国两合股份有限公司 自由端纺纱转子

Also Published As

Publication number Publication date
US5832711A (en) 1998-11-10
EP0805224A3 (fr) 1997-11-19
SK53097A3 (en) 1997-11-05
CZ288200B6 (en) 2001-05-16
CZ117197A3 (en) 1997-11-12

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