EP3455398A1 - Rotor de filage pour un dispositif de filage à sortie ouverte, pourvu d'un revêtement à coefficient de frottement augmenté d'un matériau élastomère et dispositif de filage à sortie ouverte - Google Patents

Rotor de filage pour un dispositif de filage à sortie ouverte, pourvu d'un revêtement à coefficient de frottement augmenté d'un matériau élastomère et dispositif de filage à sortie ouverte

Info

Publication number
EP3455398A1
EP3455398A1 EP17721698.3A EP17721698A EP3455398A1 EP 3455398 A1 EP3455398 A1 EP 3455398A1 EP 17721698 A EP17721698 A EP 17721698A EP 3455398 A1 EP3455398 A1 EP 3455398A1
Authority
EP
European Patent Office
Prior art keywords
rotor
spinning
belt
spinning rotor
rotor shaft
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Withdrawn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
EP17721698.3A
Other languages
German (de)
English (en)
Inventor
Dietmar Greis
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 GmbH
Original Assignee
Rieter Ingolstadt GmbH
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
Application filed by Rieter Ingolstadt GmbH filed Critical Rieter Ingolstadt GmbH
Publication of EP3455398A1 publication Critical patent/EP3455398A1/fr
Withdrawn legal-status Critical Current

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
    • D01H4/12—Rotor bearings; Arrangements for driving or stopping
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/24—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles
    • D01H1/241—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles driven by belt
    • 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 invention relates to a spinning rotor for an open-end spinning device with a rotor shaft, via which the spinning rotor by means of a belt, in particular a tangential belt, is drivable.
  • the rotor shaft has a contact area for the belt.
  • spinning rotors of open-end spinning machines it has long been customary to drive them by means of a tangential belt which rests on the shaft of the spinning rotor.
  • the spinning rotors are usually on
  • the belt is pressed onto the rotor shaft with an additional drive roller in order to reduce the slip between the belt and the rotor shaft. It can also be provided to change the contact pressure of the pressure roller to allow, for example, a faster run-up of the spinning rotors or to allow adaptation to different spinning materials or the like.
  • Such an open-end spinning device with a pressure roller which can be acted upon with a different contact pressure is shown, for example, in DE 101 07 254 A1. Due to the slippage between the belt and the rotor shaft, however, both the belt and the spinning rotor may wear despite the pressure roller.
  • Object of the present invention is therefore to propose a spinning rotor and an open-end spinning device, which are operable with a low power consumption.
  • a spinning rotor for an open-end spinning device has a rotor shaft, via which the spinning rotor can be driven by means of a belt, in particular a tangential belt.
  • the rotor shaft has a contact area for the belt.
  • the abutment region of the spinning rotor is provided with a friction-increasing lining of an elastomeric material.
  • An "elastomeric material” in the context of the present invention is understood to mean an elastically deformable material based on plastics or rubber.
  • Elastic deformable is a material with a modulus of elasticity of less than 1000 MPa.
  • the contact pressure of the pressure roller can be reduced, nevertheless achieving good force transmission between the belt and the spinning rotor.
  • the load of the spinning rotor between see the two bearings can be reduced thereby, so that the flexing work in the support disks and thus the energy consumption of the spinning device can be reduced. It is also particularly advantageous in this case that the radial position load of the support disk bearing is thereby reduced and thus the life of the bearing can be extended.
  • the Reibwerter Ecknde pad consists of an elastomeric material having a particularly favorable coefficient of friction with respect to the driving belt, the slippage between the belt and the rotor shaft and thus the energy consumption and wear of the belt can be reduced to a particularly high degree.
  • such materials have favorable damping properties and the manufacture of the spinning rotor can be carried out in a particularly cost-effective manner in comparison to a coating with other friction-increasing materials.
  • the covering has an overall width which is less than the width of the belt provided for driving the spinning rotor. This ensures that the lateral edge regions of the belt do not rest on the lining, but on the base material of the rotor shaft, whereby the lining is protected from damage by the belt.
  • the covering may be applied continuously throughout the entire width of the covering according to a first embodiment of the invention. According to another embodiment, however, it is also conceivable that the covering in the form of a plurality of spaced apart with respect to the axial direction of the rotor shaft juxtaposed strip is applied to the rotor shaft. It is advantageous in this case that the rotor shaft experiences less weakening in such an embodiment.
  • the coating has a coating thickness of not more than 1 mm, preferably of max. 0.75 mm and more preferably from Max. 0.5 mm.
  • the at least one recess is formed as at least one circumferential groove.
  • the circumferential groove can be formed in the simplest variant as a rectangular groove, in which the plastic material is introduced in particular by vulcanization.
  • the covering is thus subject to only a small amount of wear.
  • the lining thickness is not more than 1 mm, preferably max. 0.75 mm and more preferably max. 0.5 mm. The depth of the recess can thereby be limited and a weakening of the spinning rotor, which would reduce its natural frequency and would lead to undesirable vibrations during operation, can be avoided thereby.
  • the covering can also be applied in this embodiment throughout the covering width or in the form of spaced strips or rings.
  • the rotor shaft is ground with the introduced coating.
  • the power transmission between the belt and the rotor shaft can thereby be improved and wear of both the belt and the rotor shaft can be reduced.
  • the covering consists of nitrile rubber or of hydrogenated acrylonitrile-butadiene rubber. This not only has favorable friction and damping properties for the operation of the spinning rotor, but is also antistatic, so that dirt deposits in the region of the lining can be avoided. A rich resting of the belt on the rotor shaft and thus a good power transmission between the belt and the rotor are thereby further promoted.
  • the covering consists of a polyurethane elastomer or a natural rubber. These also have a favorable coefficient of friction on the drive belt and thus enable energy-saving and low-wear operation of the open-end spinning device.
  • the rotor shaft consists of a metal, in particular of an aluminum material or a steel material.
  • the dissipation of the heat, which still arises in the covering due to the flexing work between the belt and the covering, can thereby be derived in a particularly favorable manner.
  • Such a spinning rotor with a rotor shaft which is provided in its contact area with a Reibwerter (2014), can be used particularly advantageous for energy-saving and low-maintenance operation of an open-end spinning device. It is therefore also claimed protection for an open-end spinning device with such a spinning rotor.
  • FIG. 1 shows an overview of an open-end spinning device with a rotor shaft and a belt for driving the rotor shaft in a schematic plan view
  • FIG. 2 shows a detailed representation of a spinning rotor with a contact area for a belt
  • Figure 3 is a partially sectioned view of another embodiment of a spinning rotor with a reibwerter Ecknder in coating
  • FIG. 4 is a partially sectioned view of another, alternative embodiment of a spinning rotor.
  • 1 shows an open-end spinning device 4 with a spinning rotor 1 and a belt 3 for driving the spinning rotor 1 in a schematic plan view.
  • the spinning rotor 1 consists usually of the rotor shaft 2 and a rotor cup 6, which may be both detachable, as well as firmly connected to the rotor shaft 2.
  • the spinning device 4 includes in a conventional manner a bearing device for the spinning rotor 1, which is designed in the present case in the form of a support disk bearing. In this case, two support disk bearings 13 are accommodated in a bearing block 12 for the radial bearing of the spinning rotor, in which in each case a respective shaft 14 is mounted.
  • Each of the two shafts 14 carries at its two ends in each case a support disk 10.
  • the two shafts 14 with the support disks 10 are now arranged such that between each two support disks 10, a wedge gap 9 is formed in which the spinning rotor 1 with its rotor shaft 2 received can be.
  • the drive of the spinning rotor 1 takes place by means of the belt 3, which, as in the present case, tangentially contacts the rotor shaft 2 or surrounds it with only slight wrap around.
  • the spinning rotor 1 rotates at speeds of 170,000 rpm and higher.
  • a belt drive as described while considerable contact forces are required to press the belt 3 on the rotor shaft 2 of the spinning rotor 1 and thereby to transmit the movement of the belt 3 to the spinning rotor 1 and to be able to accelerate the spinning rotor 1 to the required speed.
  • the spinning rotor 1 is pushed deeper into the wedge gap 9 of the support disks 10, so that with increasing contact forces and the deformation work in the tread of the support disks 10 increases to a considerable extent. This leads to an undesirably high temperature development in the lining of the support disks 10, which favors a restless running of the spinning rotor and wear of the support disks 10.
  • FIG. 2 shows such a spinning rotor 1, which is provided with such a friction-increasing lining 8 in the contact region 7, that is to say the effective region of the drive belt 3.
  • the coefficient of friction between the belt 3 and the rotor shaft 2 can be considerably improved or even doubled compared to a conventional contact area, so that substantially lower contact pressures on the pressure roller (not shown) are required to reliably move the belt 3 towards the rotor shaft 2 transfer.
  • the total width b of the covering 8 is chosen to be smaller than the width B of the belt 3 (see Fig. 1) according to the present example.
  • the belt 3 can hereby on the one hand form a very favorable pair of friction coefficients with the lining 8, but does not lie with its lateral edges 15 (see FIGS. 3 and 4) more on the pad 8, but on the surrounding cylindrical surface of the rotor shaft 2 on. Premature wear of the coating 8 by the abrasive edges 15 of the belt 3 can be avoided, so that the duration of the spinning rotor 1 can be improved. Nevertheless, the covering 8 can be renewed in the case of wear in a comparatively simple and cost-effective manner.
  • the lining thickness d in the present case is comparatively thin, preferably designed with a lining thickness d of at most 0.3 mm in order to avoid unfavorable flexing work in the lining 8.
  • FIG. 3 shows a further spinning rotor 2, in which the lining 8 is introduced in the form of an insert into a recess 5 of the rotor shaft 2, in a partially sectioned representation.
  • the covering 8 is introduced in such a way that the recess 5 forms a smooth surface with the surrounding cylindrical surface of the rotor shaft 2.
  • the smooth, even surface of the rotor shaft 2 in the region of the lining 8 and in particular at the transitions between the lining 8 and the cylindrical surface of the rotor shaft 2 can be produced for example by grinding.
  • the pad 8 is also protected in this embodiment in a particularly favorable manner from excessive wear by the edges 15 of the belt 3. Nevertheless, a renewal of the coating 8 in a simple and cost-effective manner is also possible here.
  • the lining thickness d or the depth of the recess 5 should also be rather low, in particular in a range of less than 1 mm, chosen to avoid unfavorable influences on the natural frequency of the spinning rotor 1 and thus undesirable vibrations.
  • FIG. 4 shows a further embodiment of a spinning rotor 1, in which the covering 8 is not applied continuously over the entire width b of the covering, but in the form of spaced-apart lining rings which together provide the total width b of the lining 8.
  • the rotor shaft 2 is for this purpose provided with a plurality of spaced apart recesses 5, here in the form of circumferential grooves, in each of which a lining ring is introduced.
  • the coating 8 is designed with a very small coating thickness d.
  • a lining thickness d of less than 1 mm or preferably only a few tenths of a millimeter, for example of a maximum of 0.3 mm.
  • the described coating 8 not only considerable energy savings and a reduction of wear can be achieved. Due to the improved transmission of the movement of the belt 3 on the rotor shaft 2, the acceleration times for the spinning rotor 1 during piecing can also be significantly shortened, so that thereby the machine efficiency effect is improved. Likewise, the operating speeds of the spinning rotor 1 can be achieved faster and safer and kept constant.
  • the improved design of the spinning rotor 2 with a friction-increasing coating therefore also contributes to the production of a higher-quality yarn.

Landscapes

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

Abstract

La présente invention concerne un rotor de filage (1) pour un dispositif de filage à sortie ouverte (4), comprenant un arbre de rotor (2) sur lequel le rotor de filage (1) peut être entraîné au moyen d'une courroie (3), en particulier d'une courroie tangentielle. L'arbre de rotor (2) comporte une zone d'appui (7) pour la courroie (3). Dans la zone d'appui (7), l'arbre de rotor (2) comprend un revêtement à coefficient de frottement augmenté (8) d'un matériau élastomère. Dans un dispositif de filage à sortie ouverte (4), doté d'un rotor de filage (1) et d'une courroie (3), en particulier d'une courroie tangentielle, le rotor de filage (1) pourvu d'un revêtement à coefficient de frottement augmenté (8) en matériau élastomère est destiné à entraîner le rotor de filage (1).
EP17721698.3A 2016-05-13 2017-05-08 Rotor de filage pour un dispositif de filage à sortie ouverte, pourvu d'un revêtement à coefficient de frottement augmenté d'un matériau élastomère et dispositif de filage à sortie ouverte Withdrawn EP3455398A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016108859.5A DE102016108859A1 (de) 2016-05-13 2016-05-13 Spinnrotor für eine Offenend-Spinnvorrichtung mit einem reibwerterhöhenden Belag und Offenend-Spinnvorrichtung
PCT/EP2017/060856 WO2017194433A1 (fr) 2016-05-13 2017-05-08 Rotor de filage pour un dispositif de filage à sortie ouverte, pourvu d'un revêtement à coefficient de frottement augmenté d'un matériau élastomère et dispositif de filage à sortie ouverte

Publications (1)

Publication Number Publication Date
EP3455398A1 true EP3455398A1 (fr) 2019-03-20

Family

ID=58671691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17721698.3A Withdrawn EP3455398A1 (fr) 2016-05-13 2017-05-08 Rotor de filage pour un dispositif de filage à sortie ouverte, pourvu d'un revêtement à coefficient de frottement augmenté d'un matériau élastomère et dispositif de filage à sortie ouverte

Country Status (5)

Country Link
US (1) US20190145025A1 (fr)
EP (1) EP3455398A1 (fr)
CN (1) CN109072494A (fr)
DE (1) DE102016108859A1 (fr)
WO (1) WO2017194433A1 (fr)

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764409A (en) * 1953-06-18 1956-09-25 Bombard Leon E La Method and apparatus for friction feeding of sheets
DE1755343U (de) * 1957-08-16 1957-10-31 Barmag Barmer Maschf Geraeuschminderungsmittel an spinn-, zwirn- und spulmaschinen.
GB1046003A (fr) * 1963-05-02 1966-10-19
US3533482A (en) * 1967-11-20 1970-10-13 Tucker Martin Circumferentially loaded and snubbered hubless wheel surface locomotion apparatus
US3651703A (en) * 1970-07-22 1972-03-28 Andrew T Kornylak Belt and pulley power transmission
DE2902820A1 (de) * 1979-01-25 1980-08-07 Fritz Stahlecker Lagerung fuer einen offenend-spinnrotor
US4602779A (en) * 1980-08-05 1986-07-29 Ajax Enterprises Corporation Exercise treadmill
DE3434311A1 (de) * 1984-09-19 1986-03-27 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Antriebsaggregat einer spinn- oder zwirnmaschine
DE3734545A1 (de) * 1987-10-13 1989-05-03 Schubert & Salzer Maschinen Offenend-rotorspinnmaschine
DE4336312C2 (de) * 1993-10-25 2003-09-25 Schlafhorst & Co W Vorrichtung zum Wickeln von Garnkörpern
DE19836073A1 (de) * 1998-08-10 2000-02-17 Schlafhorst & Co W Faserkanalplatte für eine Offenend-Spinnvorrichtung
DE10018440A1 (de) * 2000-04-13 2001-10-18 Rieter Ingolstadt Spinnerei Stützscheibe für eine Stützscheibenlagerung für Spinnrotoren
DE10027036C2 (de) * 2000-06-02 2003-10-23 Emil Broell Gmbh & Co Stützscheibe einer OE-Rotorspinneinrichtung
DE10107254A1 (de) 2001-02-16 2002-08-22 Rieter Ingolstadt Spinnerei Andrückvorrichtung bzw.Spannvorrichtung in einer Spinnmaschine
US6954606B2 (en) * 2003-04-18 2005-10-11 Lexmark International, Inc. Polyurethane coatings and drive rollers including the same
DE102005021920A1 (de) * 2005-05-12 2006-11-16 Saurer Gmbh & Co. Kg Spinnrotor
JP2008165102A (ja) * 2007-01-04 2008-07-17 Konica Minolta Business Technologies Inc 定着装置および画像形成装置
IT1393534B1 (it) * 2009-03-26 2012-04-27 Savio Macchine Tessili Spa Dispositivo di azionamento individuale del rotore di filatura open-end
DE102012005390A1 (de) * 2012-03-16 2013-09-19 Oerlikon Textile Gmbh & Co. Kg Spinnvorrichtung
DE102012008693A1 (de) * 2012-04-28 2013-10-31 Oerlikon Textile Gmbh & Co. Kg Offenend-Spinnrotor
DE102013108199A1 (de) * 2013-07-31 2015-02-05 Maschinenfabrik Rieter Ag Offenend-Spinnrotor mit einer Rotortasse, einem Rotorschaft sowie einer Kupplungsvorrichtung
DE102014011572A1 (de) * 2013-10-25 2015-04-30 Saurer Germany Gmbh & Co. Kg Offenend-Spinnvorrichtung
US20180068608A1 (en) * 2014-02-14 2018-03-08 Rufus Butler Seder Coded Image Display and Animation System
DE102015104491A1 (de) * 2015-03-25 2016-09-29 Rieter Ingolstadt Gmbh Spinnrotor mit einem Laufbelag, Stützscheibe zur Lagerung eines Spinnrotors sowie Offenendspinnvorrichtung mit einem Spinnrotor und einer Lagervorrichtung mit Stützscheiben
CN105218909B (zh) * 2015-10-11 2017-09-26 宁波伏龙同步带有限公司 一种同步带及其制造方法

Also Published As

Publication number Publication date
WO2017194433A1 (fr) 2017-11-16
CN109072494A (zh) 2018-12-21
US20190145025A1 (en) 2019-05-16
DE102016108859A1 (de) 2017-11-16

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