EP2530192A1 - Métier à tisser à extrémité ouverte - Google Patents

Métier à tisser à extrémité ouverte Download PDF

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Publication number
EP2530192A1
EP2530192A1 EP12002804A EP12002804A EP2530192A1 EP 2530192 A1 EP2530192 A1 EP 2530192A1 EP 12002804 A EP12002804 A EP 12002804A EP 12002804 A EP12002804 A EP 12002804A EP 2530192 A1 EP2530192 A1 EP 2530192A1
Authority
EP
European Patent Office
Prior art keywords
open
end spinning
fiber
region
boundary layer
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
EP12002804A
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German (de)
English (en)
Other versions
EP2530192B1 (fr
Inventor
Detlef Schelter
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
Original Assignee
Oerlikon Textile GmbH and Co KG
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Publication of EP2530192A1 publication Critical patent/EP2530192A1/fr
Application granted granted Critical
Publication of EP2530192B1 publication Critical patent/EP2530192B1/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
    • D01H4/38—Channels for feeding fibres to the yarn forming region
    • 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
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers
    • 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
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/36—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls with means for taking away impurities

Definitions

  • the invention relates to an open-end spinning device according to the preamble of claim 1.
  • such open-end spinning devices have a spinning rotor revolving at high speed in a rotor housing that can be subjected to negative pressure, as well as a sliver-opening device whose combing roller rotates in an opening roller housing combing out a feed fiber ribbon into individual fibers.
  • the opening cylinder housing has two openings in the area of a peripheral wall which at least partially surrounds the opening roller, via which the original fiber tape is introduced into the opening cylinder housing, the dirt particles released from the original fiber tape are removed from the opening cylinder housing and the combed individual fibers are transferred into a fiber guide channel.
  • a sliver feed cylinder is arranged, which, in conjunction with an associated feed trough, ensures that the original fiber web is presented to the rotating opening roller and can be combed out of this into individual fibers.
  • dirt particles and the like are released in addition to individual fibers, which are entrained with the combed individual fibers through the opening roller or a rotary fluid circulating with the opening roller.
  • a fiber beard support arranged on the feed trough ensures that the first opening of the opening roller housing is subdivided into a sliver entry region and a somewhat spaced-apart, so-called dirty discharge region adjoining the sliver entry region.
  • Faserleitkanal is also the output connected to the sautellbeetzbare rotor housing of the open-end spinning device, with the result that within the Faserleitkanals a directed from the opening roller housing to the rotor housing transport air flow is given.
  • the fiber guide channel is preferably designed and arranged such that a wall of the fiber guide channel rests as a tangent to the circumferential wall of the opening roller housing which encloses the opening roller.
  • the single fibers fed into the spinning rotor are spun in the spinning rotor into a thread, which is subsequently drawn off via a thread withdrawal device and wound up into a cross-wound bobbin.
  • a sliver-opening device is described, which is modified from the sliver-opening devices described above in that it has in the region of the fiber guide channel via a special compressed-air blowing device.
  • the compressed air injection device is designed and arranged so that the transported in the fiber guide individual fibers are acted upon by a foreign air flow so that it prevents the individual fibers in the in the area of Channel wall approaching boundary layer and can be braked there.
  • the fiber transport channel bounded outwardly by the peripheral wall of the opening roller housing expands continuously outwards and the peripheral wall of the opening roller casing finally merges into a wall of a fiber guide channel.
  • a second embodiment it is provided to additionally equip the region of the extension of the fiber transport channel with a constriction and to install a vent opening in front of this constriction, which is connected to a vacuum source.
  • the bypass opening is arranged behind a deflection point of the fiber guide in the region of the generally fiber-free inner web of Faserleitkanals usually.
  • the DE 198 57 160 A1 concerns a further development of the DE 39 16 238 A1 known sliver-opening device.
  • the bypass opening is part of a channel plate adapter and arranged in the region of a channel plate adapter receptacle so that the bypass opening is positioned next to the fiber flow and facing against the fiber transport direction.
  • the invention has the object to develop an open-end spinning device which is designed so that the flow conditions in the region of the sliver-opening device, in particular in the region of the inlet opening of the fiber guide, are further improved and As a result, the detachment behavior of individual fibers from the opening roller and their entry into the fiber guide channel is improved.
  • the inventive design of an open-end spinning device with an input side of a Faserleitkanals arranged boundary layer suction device has the advantage that can be reliably prevented by such a device that arises in the fiber guide channel input a turbulent flow with Abl Harborwirbeln.
  • the individual fibers brought up by the opening roller or the rotary flow effective in the fiber transport channel of the opening roller housing can thereby be mounted on a considerably larger Align part of the Faserleitkanaleingangs in the direction of the fiber guide channel, which significantly improves the separation of individual fibers from the opening roller and the transfer of the individual fibers of the rotation flow in the Faserleitkanal.
  • the amount of air taken from the boundary layer suction device also leads to an increase in the mean flow velocity of the transport air flow in the input region of the fiber guide channel, which also has a positive effect on the individual fiber detachment.
  • the boundary layer suction device has suction openings which are installed in the region of the wall of the fiber guide channel, which is arranged tangentially to a peripheral wall of the opening roller housing which at least partially surrounds the opening roller.
  • the risk of clogging of the intake ports of the boundary layer suction device and the risk of unwanted separation of individual fibers, especially with proper metering of the boundary layer suction device relatively low because of the inertia of the opening roller at a speed between 25 and over 30m / s conveyed individual fibers in the range of action of the boundary layer suction device no individual fibers are to be expected.
  • the suction openings are connected in an advantageous embodiment via a vacuum channel to the rotor housing of the open-end spinning device.
  • Such, for example, flanged to the Auflöswalzengepur vacuum channel is not only a relatively simple and compact design, which also can be relatively easily integrated into an open-end spinning device, but is also inexpensive to maintain because of Operation of the boundary layer suction device according to the invention over the spinning machine in the rotor housing anyway existing, machine own spinning vacuum takes place.
  • the suction force effective in the region of the boundary layer suction device can be defined in a defined manner via the design and / or the number of suction openings. In this way, it is relatively easy to effectively eliminate the air turbulence occurring in the region of the boundary layer, that is to significantly improve the flow conditions in the input region of the fiber guide channel and thus the single fiber flow.
  • the boundary layer suction device can be designed in such a way (Anspr.5) that different suction forces are present in the area of the boundary layer suction device.
  • Such training may, for example, provide advantages in the processing of difficult yarn material.
  • the suction ports of the boundary layer suction device are preferably formed as a plurality of slots.
  • the slots may, as stated in claims 7-9, be oriented either in the flow direction, orthogonal to the flow direction or obliquely to the flow direction of the fiber flow.
  • the respective advantageous orientation of the slots may vary.
  • open-end spinning device carries the total number 1.
  • Such spinning devices 1 have, as is known, a rotor housing 2 in which the spinning cup 26 of a spinning rotor 3 rotates at high speed.
  • the spinning rotor 3 is supported with its rotor shaft 4 in the bearing gusset of a preferably axially thrust-free support disk bearing 5.
  • the spinning rotor 3 is driven by a machine-tangential belt 6, which is employed by a pressure roller 7 to the rotor shaft 4.
  • the axial positioning of the rotor shaft 4 in the bearing gusset of the support disk bearing 5 preferably takes place via a permanent magnetic thrust bearing 18.
  • 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 suction line 10 to a vacuum source 11, which generates the spinning vacuum required in the rotor housing 2 during the spinning process.
  • the cover element 8 has a channel plate 27 with a seal 9 preferably positioned in an annular groove.
  • a channel plate adapter 12 is arranged, which has the mouth region of a Faserleitkanals 14.
  • channel plate adapter 12 is equipped with a yarn draw-off nozzle 13 and on the output side with a yarn draw-off tube 15.
  • Fig.1 is further shown on the lid member 8, which is mounted rotatably limited about a pivot axis 16, an opening roller housing 17 and the opening roller housing 17 is integrated into the lid member 8, the rear bearing brackets 19, 20 for supporting an opening roller 21 and a sliver feed cylinder 22 has.
  • the opening roller 21 is thereby driven in the area of its whorl 23 by a rotating, machine-long tangential belt 24, while the drive (not shown) of the sliver feed cylinder 22 preferably via a worm gear arrangement, which is connected to a machine-length drive shaft 25.
  • the Fig.2 shows on a larger scale, partly in section, a front view of an open-end spinning device 1 designed according to the invention.
  • an opening roller 21 is rotatably mounted, which rotates during spinning in the direction of arrow R and on its outer periphery a so-called Auflensewalzengarnitur 35 for combing out a master fiber belt 36 ,
  • roller housing 17 In or on the opening roller housing 17 also rotatable in the direction of arrow Z sliver picking cylinder 22 and an associated feed trough 38 are mounted.
  • the original fiber tape 36 which is usually stored in a (not shown) spinning pot, passed through a sliver compressor 37 in a clamping zone, which is formed by the feed trough 38 and the sliver feed cylinder 22.
  • the feed trough 38 is acted upon by a (not shown) spring element in the direction of the sliver feed cylinder 22 and presses the original fiber ribbon 36 to the circulating in the direction of arrow Z Faserbandeinzugszylinder 22nd
  • the rotating Faserbandeinzugszylinder 22 promotes the original fiber ribbon 36 in the region of the rotating in the direction of arrow R opening roller 21, the Auflensewalzengarnitur 35 combs the original fiber ribbon 36 in individual fibers 40, which entrained by the opening roller assembly 35, that is, accelerated.
  • dirt discharge area 41 dirt particles 39, which has exposed the opening roller 21 when combing the individual fibers 40, excreted. That is, the relatively heavy dirt particles 39 become, as in Fig.2 shown, while the single fibers 40, stabilized by an incoming suction air stream 42, on the opening rollers set 35 of the opening roller 21 or remain in the rotational flow.
  • the individual fibers 40 are conveyed by the opening roller 21 to the inlet region 43 of a fiber guide 14 where they dissolve under the influence of a force acting in the fiber guide 14 vacuum flow and the force acting on the individual fibers 40 centrifugal force of the opening roller assembly 35 of the opening roller 21 and on the Faserleitkanal 14 the spinning rotor 3 are fed.
  • a boundary layer suction device 28 is installed in the inlet region 43 of the fiber guide channel 14. That is, in the input region of the wall 30 of the fiber guide 14, which is arranged tangentially to the opening roller 21 at least partially surrounding peripheral wall 31, suction openings 29 are arranged, which are connected via a vacuum channel 32 to the vacuum-pressurized rotor housing 2.
  • the negative pressure prevailing in the rotor housing 2 during the spinning operation ensures that a suction air flow 44 is produced in the vacuum passage 32, which causes the inlet openings 29 to be given an air pressure which is slightly below the air pressure prevailing in the inlet region 43 of the fiber guide channel 14.
  • the Figure 3 schematically shows the flow conditions in the inlet region 43 of a Faserleitkanals 14, when in this Area no inventive boundary layer suction device 28 is installed.
  • the fiber guide channel 14 has in its entry region 43 an entry depth designated by the reference numeral 50, that is to say a region in which the individual fibers 40 can enter into the fiber guide channel 14.
  • the entry depth 50 of the fiber guide channel 14 is significantly reduced by the prevailing flow conditions.
  • a flow separation 48 generally forms in the entry region of the wall 30 of the fiber guide channel 14, which, even in conjunction with a counterflow effective in the region of the opposite fiber guide channel wall 47, considerably limits the entry depth, as indicated by the reference numeral 51.
  • boundary layer suction device 28 makes it possible to prevent the occurrence of such a flow separation 48 and thus a significant reduction in the entry depth 50 of the fiber guide channel 14 in the region of the wall 30 of the fiber guide channel 14.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP20120002804 2011-05-31 2012-04-21 Métier à tisser à extrémité ouverte Active EP2530192B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011102883A DE102011102883A1 (de) 2011-05-31 2011-05-31 Offenend-Spinnvorrichtung

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
DE102011102883 Previously-Filed-Application 2011-05-31

Publications (2)

Publication Number Publication Date
EP2530192A1 true EP2530192A1 (fr) 2012-12-05
EP2530192B1 EP2530192B1 (fr) 2014-01-29

Family

ID=46045688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120002804 Active EP2530192B1 (fr) 2011-05-31 2012-04-21 Métier à tisser à extrémité ouverte

Country Status (3)

Country Link
EP (1) EP2530192B1 (fr)
CN (1) CN102808248B (fr)
DE (1) DE102011102883A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103305930B (zh) * 2013-07-05 2015-12-23 河北金纺机械制造有限公司 一种双气流转杯纺纱机
CN107190374B (zh) * 2017-07-13 2023-10-20 浙江理工大学 一种用于转杯纺纱机的排杂分梳装置
DE102018105075A1 (de) * 2018-03-06 2019-09-12 Saurer Spinning Solutions Gmbh & Co. Kg Faserleitkanaleinrichtung für eine Offenend-Spinnvorrichtung mit einer Rastverbindung
CN109306525B (zh) * 2018-11-03 2020-09-11 广东五源新材料科技集团有限公司 一种液体疏解机及其工作方法
DE102019110575A1 (de) * 2019-04-24 2020-10-29 Saurer Spinning Solutions Gmbh & Co. Kg Offenend-Spinnvorrichtung
CN113652783B (zh) * 2020-12-30 2023-02-28 苏州多道自动化科技有限公司 结合电荷平衡的转杯纺纱机双排杂分梳装置及应用
CN113652780B (zh) * 2020-12-30 2022-12-23 苏州多道自动化科技有限公司 基于吸气辅助的转杯纺纱机排杂分梳方法及装置
DE102023100520A1 (de) 2023-01-11 2024-07-11 Maschinenfabrik Rieter Ag Offenendspinnvorrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1925999A1 (de) 1968-05-24 1969-12-04 Krause Hans Walter Verfahren und Vorrichtung zum Parallelisieren von Stapelfasern im Speisekanal einer Spinnkammer einer Offenend-Spinnvorrichtung
DE2131270A1 (de) 1970-06-25 1972-01-05 Vyzk Ustav Bavlnarsky Faserauskaemmvorrichtung fuer ringlose Feinspinnstellen von Spinnmaschinen
DE3916238A1 (de) 1989-05-18 1990-12-06 Fritz Stahlecker Vorrichtung zum oe-rotorspinnen
DE4227885C2 (de) 1992-08-22 1994-11-17 Rieter Ingolstadt Spinnerei Vorrichtung zum pneumatischen Zuführen von Fasern zu der Fasersammelfläche eines Offenend-Spinnelementes
EP0887448A2 (fr) * 1997-06-28 1998-12-30 Zinser Textilmaschinen GmbH Procédé et appareil pour la fabrication d'un fil textile
DE19857160A1 (de) 1998-12-11 2000-06-15 Fritz Stahlecker Vorrichtung zum Offenend-Spinnen
DE102006033971A1 (de) 2006-07-22 2008-01-24 Oerlikon Textile Gmbh & Co. Kg Faserbandauflöseeinrichtung für eine Offenend-Spinnvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1922743A1 (de) * 1969-05-03 1970-11-05 Skf Kugellagerfabriken Gmbh Spinneinheit zum Verspinnen eines Faserbandes
DE4227099C2 (de) * 1992-08-17 1996-01-25 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zum Offenend-Spinnen
DE10348710A1 (de) * 2003-10-16 2005-05-12 Saurer Gmbh & Co Kg Faserleitkanal
DE102004040875A1 (de) * 2004-08-24 2006-03-02 Saurer Gmbh & Co. Kg Faserleitkanal für eine Offenend-Spinnvorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1925999A1 (de) 1968-05-24 1969-12-04 Krause Hans Walter Verfahren und Vorrichtung zum Parallelisieren von Stapelfasern im Speisekanal einer Spinnkammer einer Offenend-Spinnvorrichtung
DE2131270A1 (de) 1970-06-25 1972-01-05 Vyzk Ustav Bavlnarsky Faserauskaemmvorrichtung fuer ringlose Feinspinnstellen von Spinnmaschinen
DE3916238A1 (de) 1989-05-18 1990-12-06 Fritz Stahlecker Vorrichtung zum oe-rotorspinnen
DE4227885C2 (de) 1992-08-22 1994-11-17 Rieter Ingolstadt Spinnerei Vorrichtung zum pneumatischen Zuführen von Fasern zu der Fasersammelfläche eines Offenend-Spinnelementes
EP0887448A2 (fr) * 1997-06-28 1998-12-30 Zinser Textilmaschinen GmbH Procédé et appareil pour la fabrication d'un fil textile
DE19857160A1 (de) 1998-12-11 2000-06-15 Fritz Stahlecker Vorrichtung zum Offenend-Spinnen
DE102006033971A1 (de) 2006-07-22 2008-01-24 Oerlikon Textile Gmbh & Co. Kg Faserbandauflöseeinrichtung für eine Offenend-Spinnvorrichtung

Also Published As

Publication number Publication date
CN102808248A (zh) 2012-12-05
DE102011102883A1 (de) 2012-12-06
EP2530192B1 (fr) 2014-01-29
CN102808248B (zh) 2015-05-13

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