EP0353429A1 - Offenend-Spinnvorrichtung - Google Patents

Offenend-Spinnvorrichtung Download PDF

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Publication number
EP0353429A1
EP0353429A1 EP89110555A EP89110555A EP0353429A1 EP 0353429 A1 EP0353429 A1 EP 0353429A1 EP 89110555 A EP89110555 A EP 89110555A EP 89110555 A EP89110555 A EP 89110555A EP 0353429 A1 EP0353429 A1 EP 0353429A1
Authority
EP
European Patent Office
Prior art keywords
open
rotor
brake
spinning device
end spinning
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Withdrawn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
EP89110555A
Other languages
German (de)
English (en)
French (fr)
Inventor
Eberhard Grimm
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
Schubert und Salzer Maschinenfabrik 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
Application filed by Schubert und Salzer Maschinenfabrik AG filed Critical Schubert und Salzer Maschinenfabrik AG
Publication of EP0353429A1 publication Critical patent/EP0353429A1/de
Withdrawn legal-status Critical Current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
    • D01H4/12—Rotor bearings; Arrangements for driving or stopping

Definitions

  • the invention relates to an open-end spinning device with a spinning rotor rotating in a rotor housing, which has a collecting groove for receiving the fibers to be spun, is attached to a free end of the shaft and is mounted over the shaft in the open-end spinning device, and with braking means for stopping of the spinning rotor.
  • Open-end spinning devices with a rotating spinning rotor use two different bearing principles. These are the principle of direct storage, for example shown in DE-PS 2.405.499, and the principle of roll-off storage, for example shown in DE-AS 2.162.646, a combination of both principles also being shown in DE-OS 3.346.843 shown to be included.
  • the spinning rotor has a shaft which is guided through the rotor housing and over which it is mounted.
  • Drive and brake means also act via the shaft.
  • the usual arrangement of rotor housing, bearing and brake means that the shaft is relatively long, which is not always favorable in terms of vibrations and critical speed.
  • DE-OS 3,533,717 In another open-end spinning device, which is shown in DE-OS 3,533,717, the brake is arranged between the support disks below the belt. In this version, it is not possible to fix the rotor shaft when braking and at a standstill using the brake means. The installation space for the brake is also very narrow.
  • DE-OS 2,708,936 shows brakes for a rotor which are designed as eddy current brakes. These have the disadvantage that the rotor is not braked quickly and safely enough. Fixing the rotor in the braked state is therefore not possible to a sufficient extent.
  • the object of the invention is to find an arrangement of bearings and braking means which allows a constructive influence on the vibrations and critical speeds of the spinning rotor in a simple manner. It is also an object of the invention to brake the spinning rotor safely and quickly even at high speeds and to fix it in the braked state in particular in the case of a rolling bearing.
  • the braking means are designed as a mechanical friction brake and are arranged in the rotor housing.
  • the use of braking means that exert a braking effect on the spinning rotor by means of mechanical friction is quick Gentle and safe braking possible even at high rotor speeds.
  • the arrangement of the brake means in the rotor housing means that the distance between the two bearing points of the spinning rotor can be reduced in the case of a rolling position or a combination of both types of bearing.
  • the overhang of the rotor over the pair of support disks facing the rotor can also be reduced. This changes the vibration behavior of the spinning rotor at high speeds in a favorable manner.
  • Another advantage of both types of storage is that braking is carried out in the vicinity of the largest mass of the spinning rotor, which has a favorable influence on the vibration behavior during braking.
  • the braking means are easily accessible. This makes it easier to check and replace the brake means, with no impairment of the other spinning positions on the machine and the spinning process not having to be interrupted.
  • the brake means are arranged separately from the bearing, so that the bearing cannot be contaminated by the abrasion of the brake means. By suction of the rotor housing, the abrasion of the brake means is sucked off at the same time, so that bearing and thread are not impaired by the abrasion of the brake means.
  • the rotor housing be designed such that it extends as far as the pair of support disks facing the spinning rotor. This ensures that the entire area between the open end of the spinning rotor and the front pair of support disks is available for the arrangement of the braking means, as a result of which the rotor overhang can be made very short.
  • the braking means are exposed to an air flow for the purpose of cooling and removing the brake dust.
  • the braking means are encapsulated from their surroundings. This will surely prevent the brake dust from being deposited on other parts of the machine and causing negative effects there.
  • a hub arranged on the shaft, to which the braking means can be delivered, is particularly favorable for braking the spinning rotor. Braking on a larger diameter than that of the rotor shaft reduces the temperatures that occur during braking.
  • the braking means are delivered to the spinning rotor. This has the advantage that the greatest unbalance is braked and the spinning rotor can thereby be kept particularly quiet when braking.
  • Fig. 1 shows a spinning rotor 1, which is mounted with its shaft 11 in a wedge gap formed by pairs of support disks 2.
  • the spinning rotor 1 is driven via its shaft 11 by means of a tangential belt 3 in connection with a pressure roller 31.
  • Other types of drive, in particular also those with a drive roller, are however also possible.
  • the axial forces applied to the spinning rotor 1 in a known manner are absorbed by a ball 21 at one end thereof. With its open end 13 it projects with the hub 4, which adjoins it, into the rotor housing 6. This is under vacuum through the suction line 92. Air is supplied via the fiber feed channel 9 or the cleaning nozzle 91.
  • the distance between the pairs of support plates 2 is shown correspondingly reduced compared to known devices with brake means arranged between the pairs of support plates 2.
  • the braking means 7 are arranged in the rotor housing.
  • the distance between the support disks is thereby reduced in comparison to a conventional arrangement of the braking means between the support disks. Due to the action of the brake 7 on the hub 4, the overhang of the spinning rotor is particularly short.
  • FIG. 2 shows a brake arranged according to the invention in the rotor housing 6.
  • it is designed as a pneumatically controlled, centrally braking sleeve brake 7 and is preferably fastened in the rotor housing 6 by means of a press fit 8 (FIG. 1).
  • a rubber-like lining, the brake sleeve 72 is applied to the inside of a carrier ring 71.
  • the brake pads 73 are embedded therein, for example vulcanized, and protrude from the brake sleeve 72 in the direction of the ring axis. This eliminates the need for brackets and guides for the brake pads, which prevents problems with dirty guides.
  • the brake pads 73 are delivered to the part with which they work.
  • a medium preferably air
  • a medium is introduced into an intermediate space between the brake sleeve 72 and the carrier ring 71 that is present around the entire circumference. This leads to an annular bead that spreads in the direction of the central axis of the ring.
  • the inner diameter of the cuff brake 7 is thereby reduced and the brake pads 73 are delivered to the part to be braked.
  • the medium is introduced into the intermediate space through a supply air bore 74 in the carrier ring 71.
  • a liquid e.g. Oil can be used.
  • the brake pads which are mounted in guides, are delivered by means of a tubular annular channel consisting of a deformable, rubber-like material.
  • a tubular annular channel consisting of a deformable, rubber-like material.
  • FIG. 3 shows the space between the support ring 71 and the brake sleeve 72, formed as a groove 76 of the support ring 71, and a brake pad 73 embedded therein.
  • Fig. 4 shows an embodiment of the cuff brake 7 with a rim 75, through which an attachment e.g. by means of screws.
  • the groove 76 from FIG. 3 is replaced by an annular gap 77 in this embodiment. This is formed by the fact that brake sleeve 72 and carrier ring 71 are only not connected to one another in this area.
  • Fig. 2 also shows an advantageous arrangement of the brake pads 73, which are distributed at the same distance from one another on the circumference. Centric braking is made possible if more than two brake pads 73, advantageously three, are arranged on the circumference. A fixation of the spinning rotor 1 at a standstill can also be achieved.
  • Fig. 1 shows the connecting line 94. This is connected to the pneumatic supply line, via which the pneumatic rotor cleaning is supplied. The air is supplied to the cleaning nozzle 91 via the supply line 93. The braking and cleaning device are coupled to one another. After the spinning rotor has come to a standstill, the cleaning air flows further into the spinning rotor 1, which can thereby give off the absorbed braking heat to the surroundings. The extraction system remains in operation to extract brake abrasion.
  • FIG. 5 shows a brake actuated by means of a lever.
  • the illustration is a top view of the spinning rotor 1 projecting into a rotor housing 6.
  • a brake lever 78 is mounted on a pin 778 so that it can be rotated so that the brake pad 73 can be advanced to the rotor plate 12. This is done via a compressed air cylinder 95 with return spring 96, which is connected with a connecting line 94 to the supply line 93 of the compressed air rotor cleaning and is assigned in terms of control.
  • 5 as well as FIG. 6 can be arranged both inside the rotor housing and outside. In the latter case, the passage of the levers is then advantageously sealed, so that the vacuum inside the rotor housing can be maintained.
  • FIG. 6 shows an electromagnetically actuated brake with two levers 79 which are rotatably fastened at a common point 791.
  • the brake is held open by a spring 792.
  • both lever ends are pulled together by a double-acting electromagnet 793 for braking and the brake pads 73 are delivered to the rotor plate 12.
  • the brake pads 73 are, if they are delivered to the rotor plate as shown here, by a V-shaped groove, which is derived from the shape of the rotor plate 12 on the outer circumference, so that the spinning rotor 1 is also guided and held axially when braking.
  • the bores 721 for cooling the braking surface by means of compressed air.
  • the bores 721 are laid through the brake sleeve 72 into the gap 77 or, in another embodiment of the sleeve brake 72, into the groove 76.
  • the same air is used for cooling that is also used for expanding the brake boot 72 when braking.
  • Groove 76 or gap 77 must be designed in accordance with the air losses of the bore 721, or a plurality of bores 721, in such a way that sufficient pressure is still available to deform the brake sleeve 72.
  • the bores 721 can be designed in such a way that the exiting air sweeps the cooling surface radially to tangentially.
  • Fig. 7 is part of a spinning device with separate spaces for spin material, these are essentially rotor plate 12 and cleaning nozzle 91 (Fig. 1), and braking means, for example the sleeve tenbremse 7 (Fig. 1) shown.
  • the brake housing 61 is fastened to the rotor housing 6 with the aid of fastening means, not shown.
  • the distance between the rotor plate 12 and the support disk 211 closest to it is shown substantially enlarged.
  • the opening 5 of the rotor housing 6 for the shaft 11 of the spinning rotor 1 is closed by means of a sealing disk 62, so that no brake wear can penetrate into the rotor housing 6.
  • a vacuum line 921 projects into the brake fluid chamber 611, via which the brake abrasion and, when the shaft 11 is air-cooled, the cooling air is disposed of.
  • the shaft 1 is cooled by the air emerging from the brake sleeve 72 via the bores 721.
  • an extra ventilation line can be provided to bring in the cooling air. It is then blown and cooled directly or indirectly via a nozzle, the point of shaft 1 or hub 4 which cooperates with the braking means 7.
  • the brake dust is removed through the vacuum line 291.
  • the brake fluid chamber 611 is sealed with a one-sided sealing unit 63, so that air can be sucked into the brake fluid chamber 611, but can only leave it again via the vacuum line 92.
  • the cuff brake 7 works together with the shaft 11 and is supplied with compressed air via the connecting line 94 to the supply line 93.
  • the cuff brake 7 is fixed in the brake medium housing 61 by means of a clamping device, not shown. To remove the cuff brake 7, the entire brake medium housing 61 can be removed, if necessary, without dismantling the rotor housing 6, only the relevant spinning position having to be stopped.
  • the spinning rotor 1 can be operated both via an air stream cooling the outer circumference of the spinning rotor 1 and also being cooled by an air stream cooling the interior of the spinning rotor 1.
  • the cleaning nozzle 91 can be used for the spinning rotor 1.
  • the pneumatic rotor cleaning is already started during braking and is used for cooling before the cleaning process. This can be done, for example, via a common control. However, it is also possible to assign special nozzles for cooling the rotor on its outer circumference.
  • the brake dust is removed, for example, via a suction line 92 of the rotor housing 6.
  • a change in diameter is also to be understood to mean, for example, a sudden change in the diameter as it occurs at the transition from the shaft to the hub.
  • a prerequisite for axial guidance is, however, that the smaller diameter is arranged on the side facing away from the free end of the shaft, and that a second axial guidance, for example ball 21, is present.
  • a profiled brake pad 73 as shown in FIG. 10, cooperates with the groove 732 in FIG. 8. The brake pad 73 brakes on its entire side facing the hub 4, as a result of which there is even wear and the profile 731 is retained.
  • Soft transitions ensure that the spinning rotor 1 can be removed even when the brake is set with little air. This is guaranteed by the trough-shaped design of the groove 732 and the elasticity of the brake sleeve 72.
  • a change in diameter is also to be understood as a reduction in diameter, for example, which is not compensated for by a second change in diameter, as in the case of a groove becomes. In such a case, too, axial guidance can be achieved, even if only on one side. This would suffice, for example, for the bearing design shown in FIG. 1, since the spinning rotor 1 would be fixed axially on the one hand by the ball 21 and on the other hand by the brake.
  • the hub 4 can be both a part placed on the shaft 11, a part of the shaft 11 and also a part of the spinning rotor 1.
  • Fig. 9 shows a spinning rotor, which has a collar 12 on its largest diameter, with which the brake pads 73 cooperate axially.
  • 10 shows an associated brake pad 73 with a groove-shaped profile. Corresponding changes in diameter, e.g. a groove or a collar can be arranged according to the invention both on the hub 4 and spinning rotor 1 and on the shaft 11.
  • the invention can also be used advantageously according to the invention with direct storage.
  • the invention can also be advantageously used in the case of indirect storage, in which the axial guidance of the shaft is brought about by the bearing and drive disks which cooperate with the shaft.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP89110555A 1988-08-02 1989-06-10 Offenend-Spinnvorrichtung Withdrawn EP0353429A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3826177A DE3826177C2 (de) 1988-08-02 1988-08-02 Offenend-Spinnvorrichtung
DE3826177 1988-08-02

Publications (1)

Publication Number Publication Date
EP0353429A1 true EP0353429A1 (de) 1990-02-07

Family

ID=6360056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89110555A Withdrawn EP0353429A1 (de) 1988-08-02 1989-06-10 Offenend-Spinnvorrichtung

Country Status (6)

Country Link
US (1) US4932199A (cs)
EP (1) EP0353429A1 (cs)
JP (1) JPH0274631A (cs)
BR (1) BR8903815A (cs)
CS (1) CS440489A2 (cs)
DE (1) DE3826177C2 (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107699998A (zh) * 2017-10-18 2018-02-16 苏州多道自动化科技有限公司 一种用于转杯纺纱机的带散热的一体式轴承座

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002034975A1 (de) * 2000-10-27 2002-05-02 Holding für Industriebeteiligungen AG Verfahren zur temperaturstabilisierung eines spinnrotors und spinnrotor für eine rotorspinnmaschine
US7492077B2 (en) * 2005-05-13 2009-02-17 Xinetics, Inc. Actuator for deformable optical component
EP3489397A1 (en) * 2017-11-27 2019-05-29 Savio Macchine Tessili S.p.A. Open end spinning machine with improved braking system of the rotor shaft
DE102018118269A1 (de) * 2018-07-27 2020-01-30 Maschinenfabrik Rieter Ag Reinigungsvorrichtung zur Reinigung eines Rotortellers eines Spinnrotors mit einem Reinigungskopf

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2055405A (en) * 1979-02-27 1981-03-04 Tsnii Sherstya Promysh Device for removing the rotor for spindleless spinning machine into nonworking position
DE3613843A1 (de) * 1986-04-24 1987-10-29 Stahlecker Fritz Bremse fuer einen oe-spinnrotor

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151206B (de) * 1961-09-02 1963-07-04 Zinser Textilmaschinen Gmbh Backenbremse fuer Spindeln von Spinn- und Zwirnmaschinen
DE2112913B2 (de) * 1971-03-17 1975-02-27 Wilhelm Stahlecker Gmbh, 7341 Reichenbach Lagerung der Spinnturbine eines Offen-End-Spinnaggregates
DE2123231B2 (de) * 1971-05-11 1977-01-13 Wilhelm Stahlecker Gmbh, 7341 Reichenbach Offenend-rotorspinnmaschine mit mehreren spinnstellen
DE2162646B2 (de) * 1971-12-17 1977-02-24 Lagerung fuer den spinnrotor von offenend-spinnmaschinen
GB1461942A (en) * 1973-02-05 1977-01-19 Toyoda Automatic Loom Works Open-end spinning unit
DE2555059C2 (de) * 1975-12-06 1984-07-12 Fritz 7347 Bad Überkingen Stahlecker Offenend-Spinnaggregat mit einem Spinnrotor
DE2658477A1 (de) * 1976-12-23 1978-06-29 Teldix Gmbh Vorrichtung zur ueberwachung von ungleichmaessigkeiten und/oder strukturaenderungen des fadens einer oe-spinnturbine
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
JPS5720606U (cs) * 1980-07-10 1982-02-02
JPS5727212A (en) * 1980-07-25 1982-02-13 Canon Inc Manufacture of color filter
DE3417705A1 (de) * 1983-04-16 1985-11-14 Fritz 7347 Bad Überkingen Stahlecker Oe-rotorspinnmaschine mit einer vielzahl von spinnaggregaten
DE3346843A1 (de) * 1983-12-23 1985-07-11 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Offenend-rotorspinnvorrichtung
DE3424511A1 (de) * 1984-07-04 1986-01-09 Fritz 7347 Bad Überkingen Stahlecker Oe-spinnmaschine mit einer vielzahl von spinnaggregaten und einer verfahrbaren wartungsvorrichtung
JPS6135288A (ja) * 1984-07-27 1986-02-19 Fuji Photo Film Co Ltd レ−ザ−記録材料
DE3533717A1 (de) * 1985-09-21 1987-03-26 Stahlecker Fritz Lagerung und antrieb fuer einen horizontal angeordneten oe-spinnrotor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2055405A (en) * 1979-02-27 1981-03-04 Tsnii Sherstya Promysh Device for removing the rotor for spindleless spinning machine into nonworking position
DE3613843A1 (de) * 1986-04-24 1987-10-29 Stahlecker Fritz Bremse fuer einen oe-spinnrotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 277 (C-199)(1422) 09 Dezember 1983, & JP-A-58 156035 (TOYODA JIDO SHOKKI SEISAKUSHO K.K.) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107699998A (zh) * 2017-10-18 2018-02-16 苏州多道自动化科技有限公司 一种用于转杯纺纱机的带散热的一体式轴承座

Also Published As

Publication number Publication date
DE3826177C2 (de) 1993-10-21
CS440489A2 (en) 1991-10-15
DE3826177A1 (de) 1990-02-08
BR8903815A (pt) 1990-03-20
US4932199A (en) 1990-06-12
JPH0274631A (ja) 1990-03-14

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