EP0407732A1 - Métier à filer à bout libre - Google Patents

Métier à filer à bout libre Download PDF

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Publication number
EP0407732A1
EP0407732A1 EP90110554A EP90110554A EP0407732A1 EP 0407732 A1 EP0407732 A1 EP 0407732A1 EP 90110554 A EP90110554 A EP 90110554A EP 90110554 A EP90110554 A EP 90110554A EP 0407732 A1 EP0407732 A1 EP 0407732A1
Authority
EP
European Patent Office
Prior art keywords
housing
insert
seal
subchannel
radial surface
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
EP90110554A
Other languages
German (de)
English (en)
Other versions
EP0407732B1 (fr
Inventor
Johann Pohn
Romeo Pohn
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 Spinnereimaschinenbau AG
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 Rieter Ingolstadt Spinnereimaschinenbau AG, Schubert und Salzer Maschinenfabrik AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP0407732A1 publication Critical patent/EP0407732A1/fr
Application granted granted Critical
Publication of EP0407732B1 publication Critical patent/EP0407732B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D01H4/38—Channels for feeding fibres to the yarn forming region

Definitions

  • the present invention relates to an open-end spinning device with a spinning element, a housing for a rotatable opening roller and a fiber feed channel which extends from the housing to the spinning element and which consists of two partial channels which can be moved relative to one another and brought into alignment with one another.
  • an elastic seal is arranged in one of the two facing end faces (DE 3,512,592 A1). Because of its elasticity, this seal ensures that tolerances in the movement of the second subchannel relative to the first subchannel are accommodated, this ring seal ensuring a seal regardless of these path tolerances.
  • this ring seal holds the mutually facing end faces of the two sub-channels at a distance from each other, so that a gap is formed between the two sub-channels, into which fibers enter in order to settle here. This danger is increased by the static charge that occurs. These fibers are detached from time to time and come into the spinning element as fiber clusters, where they lead to a malfunction in the form of thick spots in the thread or to thread breaks.
  • an insert is axially movably guided in the housing, which is held in contact with the first subchannel and when subchannels are in alignment by an elastic element in contact with the second subchannel and at its end facing the interior of the housing - in relation on the direction of rotation of the opening roller - is covered at least downstream by an aperture.
  • the two subchannels are brought into mutual contact so that no gap is formed between them. As a result, no fibers can get stuck here. Irregularities in the thread produced and / or thread breaks are avoided in this way.
  • the mutual contact of the two subchannels is brought about by the elastic element, which presses the insert against the second subchannel.
  • the insert is guided in the opening roller housing so as to be movable only in the axial direction. If, however, larger tolerances are to be expected, then according to a further advantageous embodiment of the subject matter of the invention, the insert is not only guided in the opening roller housing in the axial direction, but also in a radially movable manner, the seal being designed as a radial seal. In this way, the insert can perform slight tilting movements in the opening roller housing and thus adapt to the second channel part.
  • Such a mounting of the insert in the housing is preferably effected in that both the insert and the housing have cylindrical guide surfaces through which the insert is guided with play, the seal being arranged between these cylindrical guide surfaces.
  • the insert outside the housing has a radial surface facing the housing and the elastic element is designed as a spring ring which between the radial surface of the insert and a radial surface of the housing is arranged.
  • the axial elastic support of the insert can be achieved by differently designed elastic elements. According to a preferred embodiment it is provided that the insert has a support surface for the elastic element at its end furthest from the second subchannel.
  • the insert outside the housing has a radial surface facing the housing and the elastic element is formed by the seal which is arranged between the radial surface of the insert and a radial surface of the housing.
  • the housing has an anti-rotation lock for the insert.
  • the screen for covering the end of the insert facing the opening roller can be designed differently.
  • the diaphragm is designed as a lining covering at least part of the inner wall of the housing. Another advantageous embodiment of the diaphragm provides that it is formed by a part of the housing which extends into the insert.
  • the device according to the invention is simple in construction and enables the insert to be replaced quickly if it becomes unusable due to wear.
  • this quick and easy interchangeability also enables adaptation to different fiber feed channels, which could possibly be necessary by exchanging a spinning element.
  • fibers can get stuck in the fiber feed channel on their way between the opening roller housing and the spinning element, so that the risk of fiber accumulations caused by this no longer exists. Irregularities in the thread or thread breaks due to such fiber accumulations are thus avoided. Nevertheless, a perfect seal of the fiber feed channel from the outside air is ensured, so that the fiber transport is not impaired.
  • the invention is explained below using the example of a spinning device 1 which has a spinning rotor 10 as the spinning element, but it can also be used in other open-end spinning devices, e.g. Use friction spinning devices.
  • the spinning rotor 10 is rotatably arranged in a housing 11 according to FIG. 1. This can be covered by a cover 20, which is supported by a pivotable cover 2, which covers the individual elements of the spinning device 1.
  • the cover 2 is pivotally mounted on a pivot axis 22 so that the cover 20 can be pivoted away from the housing 11.
  • the cover 20 receives a thread take-off tube 21 and part of a fiber feed channel 3, which will be described in more detail below.
  • the fiber feed channel 3 is divided into two subchannels and 31, of which the first subchannel 30 is arranged in an insert 32 and the second subchannel 31 in the cover 20.
  • the insert 32 is guided in an axially movable manner in a housing 4 which receives a drivable opening roller 40.
  • the opening roller 40 is connected upstream of a delivery device 41, which in the exemplary embodiment shown has a drivable delivery roller 410 in the usual way, with which an elastically loaded feed trough 411 cooperates.
  • the facing end faces of the parts receiving the two sub-channels 30 and 31, i.e. the facing end faces of the insert 32 and the cover 20 are designed as continuous smooth and flat sealing surfaces 200 and 323, so that when they are in mutual contact, no fibers 50 can get between these sealing surfaces 200 and 323.
  • the inlet mouth 310 of the sub-channel 31 is also larger in the usual way than the outlet mouth 300 of the sub-channel 30, so that there is also no edge protruding into the fiber feed channel 3, on which fibers 50 could get caught.
  • the insert 32 has a cylindrical outer contour, which is designed as a guide surface 322, and is mounted in the housing 4 with radial play.
  • the housing 4 has a cylindrical recess which is designed as a guide surface 42 for the insert 32.
  • the housing 4 is provided with a panel 43, which covers the entire inner surface of the housing 4 and only leaves an opening 430 in the area of the delivery device 41 and an opening 431 in the area of the fiber feed channel 3.
  • the opening 430 enables a sliver 5 to be fed to the opening roller 40, while the opening 431 allows fibers 50 to exit from the interior of the housing 4 into the fiber feed channel 3.
  • This lining 43 covers the end of the insert 32 facing the opening roller 40 on its downstream side (with reference to the arrow P).
  • the subchannel 30 becomes flat on the upstream side if something overlaps and thus separates a recess 44 from the interior 45, in which the opening roller 40 is located.
  • This recess 44 receives a support surface 325, which is located at the end of the insert 32 which is the most distant from the subchannel 31, and an elastic element, for example in the form of a compression spring 440, which is supported on this support surface 325 and a wall of the recess 44 .
  • the sliver 5 is presented through an opening 23 in the cover 2 of the delivery device 41, which feeds the sliver 5 to the opening roller 40.
  • the opening roller 40 rotating in the direction of the arrow P combs fibers 50 out of the leading end of the fiber sliver 5, which fibers 50 enter the fiber feed channel 3 and from there into the spinning rotor 10, where they are deposited in a fiber collecting groove and form a fiber ring 51 there.
  • the end of a thread 52 is in contact with the fiber ring 51, which is continuously drawn off by a pull-off device (not shown) and thereby integrates the fiber ring 51 into its end for the continuous formation of the thread 52.
  • the cover 2 is folded away from the housing 11.
  • the spinning rotor 10 becomes accessible.
  • the subchannel 31 located in the cover 20 releases the end of the subchannel 30 facing away from the opening roller 40.
  • the piecing is carried out ganges brought the cover 2 in a known manner back into its working position shown in the figure.
  • the cover 20 rests with its sealing surface 200 on the sealing surface 323 of the insert 32.
  • the two subchannels 30 and 31 are again in alignment with one another, the insert 32 with the subchannel being held in contact with the cover 20 with the subchannel 31 by the elastic element (compression spring 440).
  • the insert 32 is mounted in the housing 4 such that it can move axially and the second subchannel 31 is acted upon by the elastic element (compression spring 440) in the direction of the cover 20.
  • the front end of the insert 32 facing the opening roller 40 is - as mentioned - at least on its downstream side (see arrow P marked transport direction) covered by the aperture 43, so that even if the insert 32 is somewhat removed from the opening roller 40 , no fibers 50 can get into the gap 324 between insert 32 and aperture 43.
  • the compression spring 440 is also shielded by the aperture 43, so that no fibers 50 can get stuck here either.
  • the insert 32 can adjust its position to the cover 20 in such a way that the sealing surfaces 200 and 323 of the insert 32 receiving the sub-channel 30 and the cover 20 receiving the sub-channel 31 face one another in a sealing manner invest.
  • the sealing surfaces 200 and 323 can be designed in different ways; there must simply be no gap between them in the region of the transition from subchannel 30 to subchannel 31.
  • sealing surfaces 200 and 323 can also be different, e.g. be designed as a labyrinth seal, but here too a gap on its radially inner side must be avoided.
  • the elastic element is designed as a compression spring 440 and is arranged at the end of the insert 32 which is furthest away from the second subchannel 31.
  • the insert 32 has a radial surface 320 outside the housing 4, which faces the housing 4.
  • the housing has a similar radial surface 46 which is opposite the radial surface 320 of the insert 32.
  • a spring ring 460 is located between these two radial surfaces.
  • a seal designed as a sealing ring 6 is provided between the cylindrical guide surfaces 322 and 42 and is axially secured in the usual way by a groove 422.
  • the sealing ring 6 can of course also be arranged in a circumferential groove of the insert 32 (not shown) instead.
  • the sealing ring 6 forming a radial seal can possibly be supplemented by a further sealing ring (not shown), the insert 32 being able to carry out only an extremely slight radial movement.
  • FIG. 3 shows a further modification of the device according to the invention, the insert 32 again having a radial surface 320 and the housing 4 having a radial surface 46.
  • a seal 60 is provided, which on the one hand brings about a radial seal between the housing 4 and 32 and, on the other hand, is designed at the same time as an elastic element, through which the insert 32 is acted upon in the axial direction and is pressed in the direction of the subchannel 31.
  • this construction results in the same function as in the embodiments previously described with the aid of FIGS. 1 and 2.
  • the insert 32 is guided in the housing 4 so that the risk of adjustment by turning is largely prevented. This is particularly the case when the sealing surfaces 200 and 323 are oriented vertically to the longitudinal axis of the insert 32, since this ensures the sealing effect in the same way in every rotational position of the insert 32.
  • the insert 32 can be assigned a rotation lock 7.
  • the rotation lock 7 can e.g. are formed in that the insert 32 and the housing 4 have cooperating guide surfaces which deviate from the circular shape.
  • the anti-rotation device 7 is formed by the cooperating surfaces of insert 32 and lining 43.
  • An axial groove may also be provided, into which a radially projecting nose protrudes, so that it is guided in this axial groove (not shown), although it does not matter in principle whether the axial groove is in the housing and the nose is on the insert or whether the order is reversed. However, care must be taken to ensure that the sealing effect is not impaired by this. If the insert 32 is secured against rotation, then it always assumes its optimal position with respect to the cover 20 with the subchannel 31, which ensures a perfect seal at the transition from the subchannel 30 to the subchannel 31.
  • the aperture 43 does not necessarily have to be designed as a housing lining which extends over the entire inner circumference of the housing 4. It is sufficient if it only extends over the endangered area of the insert 32. Depending on the design of the insert 32, the orifice 43 upstream of the feed channel 3 need not or only partially cover the insert 32.
  • this housing piece extends into the insert 32. This ends on its end facing the opening roller 40 in an annular groove 47, from which a pipe socket 470 protrudes into the interior of the insert 32, which in this way forms the diaphragm and fulfills its function.
  • the insert 32 on the opening roller side can have a conical widening 321 on its inside and the pipe socket 470 on the insert side on its outer circumference have a conical taper 471.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP90110554A 1989-07-13 1990-06-01 Métier à filer à bout libre Expired - Lifetime EP0407732B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3923060A DE3923060A1 (de) 1989-07-13 1989-07-13 Offenend-spinnvorrichtung
DE3923060 1989-07-13

Publications (2)

Publication Number Publication Date
EP0407732A1 true EP0407732A1 (fr) 1991-01-16
EP0407732B1 EP0407732B1 (fr) 1993-12-22

Family

ID=6384890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110554A Expired - Lifetime EP0407732B1 (fr) 1989-07-13 1990-06-01 Métier à filer à bout libre

Country Status (3)

Country Link
US (1) US5111651A (fr)
EP (1) EP0407732B1 (fr)
DE (2) DE3923060A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994001605A1 (fr) * 1992-07-01 1994-01-20 Rieter Ingolstadt Spinnereimaschinenbau Aktiengesellschaft Procede et dispositif de filage a fibre liberee
EP0926274A3 (fr) * 1997-12-23 2000-08-23 Maschinenfabrik Rieter Ag Auge élastique d'alimentation
CZ298763B6 (cs) * 1998-08-10 2008-01-23 W. Schlafhorst Ag & Co. Dopřádací zařízení
CN112095187A (zh) * 2019-06-18 2020-12-18 里特机械公司 转杯纺纱机的纺纱转杯的安装和用于封闭再润滑纺纱转杯的双列滚珠轴承开口的带销的盖

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4227016C2 (de) * 1992-08-14 1995-09-28 Rieter Ingolstadt Spinnerei Offenend-Spinnvorrichtung
DE4309704C1 (de) * 1993-03-25 1994-07-21 Rieter Ingolstadt Spinnerei Offenend-Spinnvorrichtung
DE4416977C2 (de) * 1994-05-13 1996-12-19 Rieter Ingolstadt Spinnerei Offenend-Spinnvorrichtung
DE4441087A1 (de) * 1994-11-18 1996-05-23 Rieter Ingolstadt Spinnerei Offenend-Spinnvorrichtung
DE19511084A1 (de) * 1995-03-25 1996-09-26 Schlafhorst & Co W Offenend-Spinnvorrichtung
US5913806A (en) * 1997-11-08 1999-06-22 Rieter Ingolstadt Spinnereimaschinenbau Ag Device to convey fibers to the collection surface of a spinning rotor
DE19712881B4 (de) * 1997-03-27 2005-12-22 Saurer Gmbh & Co. Kg Offenend-Spinnvorrichtung
DE19742498A1 (de) * 1997-09-26 1999-04-01 Friedrich Legrom Faserzuführelement einer Rotorspinnmaschine
EP0955397B1 (fr) * 1998-05-04 2004-04-21 Saurer GmbH & Co. KG Métier à filer à bout libre
CZ299259B6 (cs) * 2001-10-01 2008-05-28 Rieter Cz A.S. Oddelovací teleso ojednocených vláken pro rotorový doprádací stroj
DE102004017700A1 (de) * 2004-04-10 2005-10-27 Saurer Gmbh & Co. Kg Offenend-Rotorspinnvorrichtung
DE102005050102B4 (de) * 2005-10-18 2018-04-05 Rieter Ingolstadt Gmbh Offenend-Spinnvorrichtung mit einem Faserkanal aus mehreren Kanalbauteilen
DE102009012045A1 (de) 2009-03-06 2010-09-09 Oerlikon Textile Gmbh & Co. Kg Offenend-Rotorspinnvorrichtung
DE102010044181A1 (de) * 2010-11-19 2012-05-24 Maschinenfabrik Rieter Ag Faserkanaleinsatz
DE102015115912A1 (de) * 2015-09-21 2017-03-23 Maschinenfabrik Rieter Ag Kanalplattenadapter und Offenendspinnvorrichtung mit einem Kanalplattenadapter
DE102018105075A1 (de) * 2018-03-06 2019-09-12 Saurer Spinning Solutions Gmbh & Co. Kg Faserleitkanaleinrichtung für eine Offenend-Spinnvorrichtung mit einer Rastverbindung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2426275A1 (de) * 1974-05-29 1975-12-11 Pensensky Ni Ex K I Pryadilnyc Einrichtung zum ringlosen faserspinnen
EP0197405A2 (fr) * 1985-04-06 1986-10-15 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Dispositif de filature open-end
EP0311988A1 (fr) * 1987-10-13 1989-04-19 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Métier à filer à bout libre et procédé de fabrication dudit métier à filer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS163843B1 (fr) * 1971-03-26 1975-11-07 Elitex Zavody Textilniho
DE2356180C2 (de) * 1973-11-09 1984-02-02 Stahlecker, Fritz, 7347 Bad Überkingen Vorrichtung zum Abscheiden von Verunreinigungen aus Fasermaterial
US3901013A (en) * 1974-06-04 1975-08-26 Alexandr Alexeevi Sharychenkov Device for non-ring spinning of fibers
DE2524093C2 (de) * 1975-05-30 1986-04-24 Fritz 7347 Bad Überkingen Stahlecker Zuführ- und Auflöseeinrichtung für ein Spinnaggregat einer Offenend-Spinnmaschine
US4479348A (en) * 1981-10-27 1984-10-30 Kabushiki Kaisha Toyoda Jidoshokki Apparatus for spinning fasciated yarn
DE3335065A1 (de) * 1983-09-28 1985-04-04 Stahlecker, Fritz, 7347 Bad Überkingen Vorrichtung zum oe-friktionsspinnen
DE3443901A1 (de) * 1984-12-01 1986-06-05 Fritz 7347 Bad Überkingen Stahlecker Vorrichtung zum oe-friktionsspinnen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2426275A1 (de) * 1974-05-29 1975-12-11 Pensensky Ni Ex K I Pryadilnyc Einrichtung zum ringlosen faserspinnen
EP0197405A2 (fr) * 1985-04-06 1986-10-15 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Dispositif de filature open-end
EP0311988A1 (fr) * 1987-10-13 1989-04-19 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Métier à filer à bout libre et procédé de fabrication dudit métier à filer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 289 (C-202)(1434) 23 Dezember 1983, & JP-A-58 169526 (NORIAKI_MIYAMOTO) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994001605A1 (fr) * 1992-07-01 1994-01-20 Rieter Ingolstadt Spinnereimaschinenbau Aktiengesellschaft Procede et dispositif de filage a fibre liberee
EP0926274A3 (fr) * 1997-12-23 2000-08-23 Maschinenfabrik Rieter Ag Auge élastique d'alimentation
CZ298763B6 (cs) * 1998-08-10 2008-01-23 W. Schlafhorst Ag & Co. Dopřádací zařízení
CN112095187A (zh) * 2019-06-18 2020-12-18 里特机械公司 转杯纺纱机的纺纱转杯的安装和用于封闭再润滑纺纱转杯的双列滚珠轴承开口的带销的盖

Also Published As

Publication number Publication date
EP0407732B1 (fr) 1993-12-22
US5111651A (en) 1992-05-12
DE3923060A1 (de) 1991-01-24
DE59003942D1 (de) 1994-02-03

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