EP0863233B1 - Dispositif d'étirage à double manchon - Google Patents

Dispositif d'étirage à double manchon Download PDF

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Publication number
EP0863233B1
EP0863233B1 EP98102622A EP98102622A EP0863233B1 EP 0863233 B1 EP0863233 B1 EP 0863233B1 EP 98102622 A EP98102622 A EP 98102622A EP 98102622 A EP98102622 A EP 98102622A EP 0863233 B1 EP0863233 B1 EP 0863233B1
Authority
EP
European Patent Office
Prior art keywords
apron
holes
suction
groove
perforation
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.)
Expired - Lifetime
Application number
EP98102622A
Other languages
German (de)
English (en)
Other versions
EP0863233A3 (fr
EP0863233A2 (fr
Inventor
Peter Dr. Ing. Artzt
Holger Dipl.-Ing. Zoudlik
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.)
Deutsche Institute fuer Textil und Faserforschung Denkendorf DITF
Original Assignee
Deutsche Institute fuer Textil und Faserforschung Denkendorf DITF
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27217189&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0863233(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19722528A external-priority patent/DE19722528C2/de
Application filed by Deutsche Institute fuer Textil und Faserforschung Denkendorf DITF filed Critical Deutsche Institute fuer Textil und Faserforschung Denkendorf DITF
Priority to EP01129186A priority Critical patent/EP1191136B1/fr
Priority to EP01129185A priority patent/EP1191135B1/fr
Priority to EP01129184A priority patent/EP1191134B1/fr
Publication of EP0863233A2 publication Critical patent/EP0863233A2/fr
Publication of EP0863233A3 publication Critical patent/EP0863233A3/fr
Application granted granted Critical
Publication of EP0863233B1 publication Critical patent/EP0863233B1/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
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/60—Arrangements maintaining drafting elements free of fibre accumulations
    • D01H5/62—Non-rotary cleaning pads or plates; Scrapers
    • D01H5/625—Non-rotary cleaning pads or plates; Scrapers in cooperation with suction or blowing means
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements

Definitions

  • the invention relates to a double apron drafting system for spinning machines with a fiber bundling zone that corresponds to the Output roller pair of the main drafting field connects and the the delivery roller pair follows according to the preamble of the claim 1.
  • a drafting system of this type is described in DE 43 23 472. It is between the pair of output rollers and the A pneumatic compacting device, which has a perforated strap and a suction device has that facing away from the fiber structure Side of the strap stretches and through the fiber structure sucks air through.
  • an apron is used without fabric insert, around the delivery cylinder fibers, the ends of which have been sucked into the perforation, release.
  • These straps without a fabric insert have a lower one Lifespan.
  • the object of the present invention is the described Avoid disadvantages and reduce suction power to improve the compression effect of the known device.
  • the invention is based on the knowledge that for bundling the fiber structure only requires a relatively short distance is independent of the staple length of the fibers.
  • a double apron drafting system for spinning machines with one Fiber bundling zone which is the output roller pair of Main warping field and the delivery roller pair 5 follows, is in its entirety already in DE 43 23 472 described, so that only the invention Improvements to this drafting system are explained.
  • FIG. 1 shows the apron 6 of the pneumatic compression device, which perforation breakthroughs 61, in the following Called compression holes 61, through a groove 62 are connected to each other.
  • the groove 62 is strong drawn enlarged. Its width is based on the mass matched the fibers, which are summarized by the compression holes 61 become.
  • the combined fibers lay in the groove 62, which is dimensioned so that it has a certain Clamping effect on the fibers. This will make the bundled Fibers up to the clamping line of the delivery cylinder 5 mechanically held so that the suction air flow only on bundling immediately after leaving the pair of exit rollers the drafting system needs to be turned off.
  • a single groove 62 would be closed wide and would not have a clamping effect, on the other hand would be too narrow a groove 62 will not be able to make the mass of coarser To catch yarn.
  • the fiber mass With several grooves 62, for example three, for fine yarns, the fiber mass only lies in the middle groove. The outer grooves remain free. But with that always achieved sufficient clamping.
  • the grooves 62 are also arranged symmetrically to the region of the compression holes 61.
  • FIGs 3 and 4 straps 60, 600 are shown, in which in addition to the compression holes 61 perforations 63 are shown, their extent transverse to the fiber transport direction is larger than in the fiber transport direction.
  • Cross holes 63 is the compression device in capable of coarse compaction with particularly wide fiber dressings to effect.
  • the fibers are still bundled even when they are traversed the position of the fiber structure changes.
  • the transverse extent this cross holes 63 therefore suitably corresponds about the traversing stroke or the changed position of the Fiber dressing opposite the straps 6.
  • Cross holes 63 and Compression holes 61 are arranged in alternation.
  • the strap 60 in Fig. 3 is between two compression holes a transverse hole arranged. Cheaper for that However, air consumption is when the number of cross holes 63 is less than the number of compression holes 61. For example 4 is in each case in the strap 600 Transverse hole 63 arranged following two compression holes 61. This way, with low air consumption and traversing of the fiber structure achieved good compaction.
  • Fig. 6 shows an embodiment in which the groove 41 in the strappy cage 4 are only less than half the length of strappy cage 4 extends.
  • the to the suction line 42nd connected groove 41 lies in the delivery cylinder 5 facing away Part of the strappy cage 4 and is to the output cylinder of the drafting system open.
  • the length of this suction zone is about 10 to 25 mm. In this short area is the fiber structure already fully summarized.
  • the suction zone can therefore be as short as possible to save suction air performance be held, i.e. it is only as long as it is for the summary of the fibers is absolutely necessary.
  • the distance between the cylinder clamping lines is corresponding the stack length larger. Even then, the suction zone does not have to be larger his. Following the suction zone, gffs then take over. the grooves 62 in the straps 6 the cohesion or the clamping the combined fibers as already described above.
  • Additional densification can also take place between the suction zone defined by the groove 41 and the clamping line of the delivery cylinder 5.
  • a channel 43 is provided for this purpose, which the groove 41 with the post-compression area before Delivery cylinder 5 connects.
  • 11 and 12 is an alternative embodiment of the compression device shown at which two perforations 61 and 61 'and 63 and 63' are provided.
  • the perforation 61 ', 63' also include the perforation holes Grooves 62 connected.
  • 3 and 4 are here summarized, however, is due to the asymmetrical arrangement the groove 410 in the strappy cage 40 always only one of the rows of perforations in operation.
  • the groove 410 is via a suction line 420 connected to the suction, not shown.
  • This version has the advantage that by reversing the Strappy 660 the compacting device in a simple manner adapted to different sliver strengths and material requirements can be.
  • the strap 660 can thus be used more flexibly as a strap with only one row of perforations.
  • FIGS. 9 and 10 show an embodiment in which a cleaning device for the compression device is provided.
  • a blown air line 45 with a connecting piece 44 opens into the groove 41 opposite in the strappy cage 4 the mouth of the suction air line 42. Should cleaning take place, so this compressed air line 45 compressed air initiated, but at the same time the negative pressure via the suction line 42 maintained. It has been shown that the Impurities that are mostly in the groove 41 and especially start at the mouth of the suction line 42, on this Way can be successfully eliminated.
  • the compressed air is fed to the connecting piece 44. This can be done by hand, however also done by a walking machine.
  • the suction effect can also be reduced if that the perforation is clogged by dust deposits. Also can cause ridges on the edges of the perforation to become Hang the fibers on it.
  • burr-free perforation is problem-free works even with very dirty material without clogging.
  • Such a burr-free perforation is caused by breaking the edges conveniently achieved by the usual punching process usually have a burr.

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

Claims (25)

  1. Dispositif d'étirage à double manchon pour métiers à filer comportant une zone liant les fibres qui est disposée à la suite de la paire de cylindres de sortie du champ d'étirage principal, et qui est suivie d'un dispositif de livraison, une installation de compression pneumatique étant disposée entre la paire de cylindres de sortie et le dispositif de livraison qui comporte un manchon perforé et un dispositif d'aspiration s'étendant sur la face du manchon détournée de l'assemblage de fibres et aspirant de l'air à travers l'assemblage de fibres, caractérisé en ce que la zone d'aspiration commence à proximité de la paire de cylindres de sortie et qu'elle s'étend sur une partie d'un domaine recouvert par le manchon (6 ; 60 ; 600), situé entre la paire de cylindres de sortie et le dispositif (5) de livraison, et qui présente une longueur juste suffisante pour lier les fibres.
  2. Dispositif selon la revendication 1, caractérisé en ce que la zone d'aspiration de l'installation de compression pneumatique est constituée par une gorge (41) dans la cage (4) à manchon, conçue comme carter, gorge qui est reliée à un conduit d'aspiration (42) et dont la longueur s'étend sur à peu près la moitié de la partie de la cage (4) à manchon détourné du cylindre (5) de livraison.
  3. Dispositif selon l'une ou plusieurs des revendications 1 ou 2, caractérisé en ce que la longueur de la zone d'aspiration s'élève à 10 à 25 mm.
  4. Dispositif selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce qu'après la zone de compression définie par la gorge (41), il y a une recompression dans le domaine du cylindre de livraison (5).
  5. Dispositif selon la revendication 4, caractérisé en ce qu'un canal (43) est prévu reliant la gorge (41) avec la zone de recompression avant le cylindre de livraison (5).
  6. Dispositif d'étirage à double manchon selon l'une ou plusieurs des revendications 1 à 5, caractérisé en ce que les passages perforés (61) du manchon pratiqués dans le domaine de la gorge (41) sont reliés, en sens du transport des fibres, par une rainure (62).
  7. Dispositif selon la revendication 6, caractérisé en ce que plusieurs rainures (62) sont disposées parallèlement, l'une par rapport aux autres, dans le domaines des passages perforés (61).
  8. Dispositif selon l'une des revendications 6 ou 7, caractérisé en ce que la largeur des rainures (62) et/ou leur nombre est adapté(e) à la masse de fibres.
  9. Dispositif selon la revendication 8, caractérisé en ce que trois rainures sont disposées de façon parallèle, l'une par rapport aux autres.
  10. Dispositif selon l'une des revendications 8 où 9, caractérisé en ce que les rainures (62) sont disposées de façon symétrique par rapport au domaine de ces trous (61) de compression.
  11. Dispositif d'étirage à double manchon selon l'une ou plusieurs des revendications 1 à 10, caractérisé en ce que le manchon (60 ; 600) présente des passages perforés (63) dont l'étendue en sens transversal par rapport au sens de transport des fibres est plus grande qu'en sens de transport des fibres.
  12. Dispositif selon la revendication 11, caractérisé en ce que l'étendue transversale de ces trous transversaux (63) correspond à peu près à la course du mouvement de va-et-vient.
  13. Dispositif selon l'une ou plusieurs des revendications 11 ou 12, caractérisé en ce que les trous transversaux (63) et les trous de compression (61) sont disposées avec une alternance régulière.
  14. Dispositif selon la revendication 13, caractérisé en ce que le nombre des trous transversaux (63) est plus petit que le nombre des trous de compression (61).
  15. Dispositif selon la revendication 14, caractérisé en ce que respectivement deux trous de compression (61) sont suivis d'un trou transversal (63).
  16. Dispositif selon l'une ou plusieurs des revendications 11 à 15, caractérisé en ce que immédiatement après la ligne de pincement du cylindre (5) de livraison une barrette (2) est disposée par-dessus laquelle le manchon (6 ; 60 ; 600) tourne.
  17. Dispositif selon la revendication 16, caractérisé en ce que la barrette (2) est réglable.
  18. Dispositif d'étirage à double manchon selon l'une ou plusieurs des revendications 1 à 17, caractérisé en ce qu'en face de l'embouchure du conduit d'air aspiré (42, 42') dans la cage à manchon (4) conçue comme carter il débouche un conduit (45) d'air de soufflage.
  19. Dispositif selon la revendication 18, caractérisé en ce qu'à travers le conduit (45) d'air de soufflage de l'air de soufflage est alimenté pendant que l'aspiration est en marche.
  20. Dispositif selon la revendication 18 ou 19, caractérisé en ce que pour l'alimentation de l'air de soufflage il est prévu un raccord (44, 44') à chaque poste de filage.
  21. Dispositif selon l'une ou plusieurs des revendications 18 à 20 caractérisé en ce qu'à chaque poste de filage le raccord (44, 44') est disposé respectivement de façon identique par rapport au poste de filage.
  22. Dispositif selon l'une ou plusieurs des revendications 1 à 21, caractérisé en ce que la gorge (410) dans la cage à manchon (40) est disposée de façon asymétrique et que le manchon (660) présente deux rangées de perforations (61, 61' ; 63, 63'), susceptibles d'être affectées alternativement à la gorge (410).
  23. Dispositif d'étirage à double manchon selon l'une ou plusieurs des revendications 1 à 22, caractérisé en ce que la perforation de l'installation de compression est exempte de bavures.
  24. Dispositif selon la revendication 23, caractérisé en ce que la perforation présente des arêtes adoucies.
  25. Dispositif selon l'une des revendications 23 ou 24, caractérisé en ce que la perforation est effectuée par laser.
EP98102622A 1997-03-08 1998-02-16 Dispositif d'étirage à double manchon Expired - Lifetime EP0863233B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP01129186A EP1191136B1 (fr) 1997-03-08 1998-02-16 Courroies pour banc à étirer à courroies doublées
EP01129185A EP1191135B1 (fr) 1997-03-08 1998-02-16 Courroies pour banc à étirer à courroies doublées
EP01129184A EP1191134B1 (fr) 1997-03-08 1998-02-16 Courroies pour bancs à étirer à courroies doublées

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19709580 1997-03-08
DE19709580 1997-03-08
DE19719773 1997-05-10
DE19719773 1997-05-10
DE19722528A DE19722528C2 (de) 1997-03-08 1997-05-30 Doppelriemchen-Streckwerk
DE19722528 1997-05-30

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP01129185A Division EP1191135B1 (fr) 1997-03-08 1998-02-16 Courroies pour banc à étirer à courroies doublées
EP01129184A Division EP1191134B1 (fr) 1997-03-08 1998-02-16 Courroies pour bancs à étirer à courroies doublées
EP01129186A Division EP1191136B1 (fr) 1997-03-08 1998-02-16 Courroies pour banc à étirer à courroies doublées

Publications (3)

Publication Number Publication Date
EP0863233A2 EP0863233A2 (fr) 1998-09-09
EP0863233A3 EP0863233A3 (fr) 1999-05-12
EP0863233B1 true EP0863233B1 (fr) 2003-05-07

Family

ID=27217189

Family Applications (4)

Application Number Title Priority Date Filing Date
EP01129184A Expired - Lifetime EP1191134B1 (fr) 1997-03-08 1998-02-16 Courroies pour bancs à étirer à courroies doublées
EP98102622A Expired - Lifetime EP0863233B1 (fr) 1997-03-08 1998-02-16 Dispositif d'étirage à double manchon
EP01129186A Expired - Lifetime EP1191136B1 (fr) 1997-03-08 1998-02-16 Courroies pour banc à étirer à courroies doublées
EP01129185A Expired - Lifetime EP1191135B1 (fr) 1997-03-08 1998-02-16 Courroies pour banc à étirer à courroies doublées

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP01129184A Expired - Lifetime EP1191134B1 (fr) 1997-03-08 1998-02-16 Courroies pour bancs à étirer à courroies doublées

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP01129186A Expired - Lifetime EP1191136B1 (fr) 1997-03-08 1998-02-16 Courroies pour banc à étirer à courroies doublées
EP01129185A Expired - Lifetime EP1191135B1 (fr) 1997-03-08 1998-02-16 Courroies pour banc à étirer à courroies doublées

Country Status (8)

Country Link
US (2) US6112509A (fr)
EP (4) EP1191134B1 (fr)
JP (3) JP4212008B2 (fr)
CN (2) CN1082574C (fr)
BR (1) BR9807481A (fr)
DE (7) DE19758757C2 (fr)
ES (4) ES2227050T3 (fr)
TR (1) TR199800394A2 (fr)

Families Citing this family (7)

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DE19914201A1 (de) * 1999-03-29 2000-10-05 Zinser Textilmaschinen Gmbh Verfahren und Vorrichtung zum Bündeln eines in einem Streckwerk einer Spinnereimaschine verzogenen Faserverbundes
JP2005023430A (ja) * 2001-04-11 2005-01-27 Toyota Industries Corp 繊維束集束装置
DE102007003525A1 (de) * 2007-01-19 2008-07-31 Spindelfabrik Suessen Gmbh Saugkanal für eine Faserbündelungseinrichtung
DE102007042658A1 (de) * 2007-09-10 2009-03-12 Cetex Institut für Textil- und Verarbeitungsmaschinen gemeinnützige GmbH Verfahren und Vorrichtung zur Bearbeitung von Riemchen für Spinnereimaschinenstreckwerke mit Verdichtungseinrichtung
CN102449212B (zh) * 2009-03-31 2015-03-18 奥斯德立克家用纺织品工业及贸易有限公司 纤维牵伸机构和其方法
JP5627137B2 (ja) * 2010-03-19 2014-11-19 新日鉄住金化学株式会社 金属微粒子複合体
DE102018006100A1 (de) * 2018-08-03 2020-02-06 Saurer Spinning Solutions Gmbh & Co. Kg Streckwerkeinheit und Streckwerk für eine Spinnmaschine

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DE882066C (de) 1947-11-01 1953-07-06 Warner Swasey Co Streckwerk
BE511546A (fr) * 1951-10-23
US2774995A (en) 1951-10-26 1956-12-25 Warner Swasey Co High reduction fiber drafting
FR1117278A (fr) * 1954-12-22 1956-05-22 Machines pour procédé d'étirage à grand coefficient
US3122794A (en) * 1961-02-14 1964-03-03 Deering Milliken Res Corp Drafting and scavenging apparatus
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GB997845A (en) * 1963-03-08 1965-07-07 Maremont Corp Improvements in or relating to textile fibre processing apparatus
CH417420A (fr) * 1963-08-14 1966-07-15 Deering Milliken Res Corp Appareil pour l'étirage de fibres textiles
US3438094A (en) * 1966-09-02 1969-04-15 Du Pont High speed drafting process
US4290170A (en) * 1980-03-27 1981-09-22 Union Carbide Corporation Device for aligning the attenuating fiber mats
DE3016409A1 (de) * 1980-04-29 1981-11-05 W. Schlafhorst & Co, 4050 Mönchengladbach Walzenstreckwerk mit einer faserfuehrungsvorrichtung im hauptverzugsfeld
DE3839413A1 (de) * 1988-11-22 1990-05-23 Rieter Ag Maschf Trichteranordnung am ausgang einer karde
DE3927739A1 (de) * 1989-08-23 1991-02-28 Fritz Stahlecker Verfahren und vorrichtung zum falschdrallspinnen
US5243813A (en) * 1989-10-04 1993-09-14 Fritz Stahlecker Process and an arrangement for false-twist spinning
DE3939776A1 (de) * 1989-12-01 1991-06-06 Fritz Stahlecker Vorrichtung zum falschdrallspinnen
DE3939777A1 (de) * 1989-12-01 1991-06-06 Fritz Stahlecker Vorrichtung zum falschdrallspinnen
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Also Published As

Publication number Publication date
ES2196411T3 (es) 2003-12-16
EP1191136A3 (fr) 2002-11-20
DE19758757C2 (de) 2003-07-17
EP1191135A3 (fr) 2002-11-13
EP1191136A2 (fr) 2002-03-27
DE59811969D1 (de) 2004-10-21
EP1191134A2 (fr) 2002-03-27
CN1252331C (zh) 2006-04-19
EP1191135A2 (fr) 2002-03-27
DE59810641D1 (de) 2004-02-26
DE19758759B4 (de) 2006-03-16
EP1191134A3 (fr) 2002-11-20
EP1191136B1 (fr) 2004-09-15
JP2005089961A (ja) 2005-04-07
EP1191134B1 (fr) 2004-01-21
ES2215104T3 (es) 2004-10-01
ES2212789T3 (es) 2004-08-01
JPH111831A (ja) 1999-01-06
CN1196409A (zh) 1998-10-21
JP4212054B2 (ja) 2009-01-21
EP1191135B1 (fr) 2003-12-10
BR9807481A (pt) 2002-07-16
JP4212008B2 (ja) 2009-01-21
JP2005042297A (ja) 2005-02-17
TR199800394A3 (tr) 1998-11-23
ES2227050T3 (es) 2005-04-01
EP0863233A3 (fr) 1999-05-12
US6370737B1 (en) 2002-04-16
CN1370870A (zh) 2002-09-25
TR199800394A2 (xx) 1998-11-23
US6112509A (en) 2000-09-05
DE19758758C2 (de) 2003-07-17
EP0863233A2 (fr) 1998-09-09
CN1082574C (zh) 2002-04-10
DE59808211D1 (de) 2003-06-12
DE59810426D1 (de) 2004-01-22

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