EP1205587A2 - Procédé et dispositif pour filer un fil en filaments déchirables - Google Patents

Procédé et dispositif pour filer un fil en filaments déchirables Download PDF

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Publication number
EP1205587A2
EP1205587A2 EP01126468A EP01126468A EP1205587A2 EP 1205587 A2 EP1205587 A2 EP 1205587A2 EP 01126468 A EP01126468 A EP 01126468A EP 01126468 A EP01126468 A EP 01126468A EP 1205587 A2 EP1205587 A2 EP 1205587A2
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EP
European Patent Office
Prior art keywords
spinning
yarn
fibers
staple fiber
fiber
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Withdrawn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
EP01126468A
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German (de)
English (en)
Other versions
EP1205587A3 (fr
Inventor
Peter Anderegg
Christian Grieshammer
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter 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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP1205587A2 publication Critical patent/EP1205587A2/fr
Publication of EP1205587A3 publication Critical patent/EP1205587A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • D01H5/30—Drafting machines or arrangements without fallers or like pinned bars incorporating arrangements for severing continuous filaments, e.g. in direct spinning
    • 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
    • D01H4/02—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 a fluid, e.g. air vortex
    • 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

Definitions

  • the invention contemplates a spinning process for producing a staple fiber yarn the processing of a tearable filament bundle, taking from the filaments Staple fiber and a spun fuse is formed from this staple fiber.
  • the fuse is in one Continuous process processed.
  • the fuse should be by means of a one Real twist producing spinning device with a delivery speed higher than 50 m / min. to be spun into a yarn.
  • the invention also provides a corresponding spinning device for producing a Staple fiber yarn by processing a tearable filament bundle.
  • the device preferably comprises a separating device for forming staple fibers and means for delivering the staple fiber in the form of a spun sliver.
  • a Spinning device which is suitable for uniting in at least some of the fibers To create real twist, thereby forming a yarn and this yarn with a Delivery speed higher than 50 m / min. to pass on is preferably such provided that the fuse from the named delivery means directly to this Spinning device is released and converted into a yarn by the device.
  • the spool 1 On the spool 1 is a bundle of endless, artificial fibers, e.g. uncut Cellulose, rayon, or a bundle of long natural fibers wound up.
  • the Fibers get into the through a thread guide 2 via a spreading device 3 Rip drafting unit A with pairs of cylinders 4.5 and 6.7.
  • a condenser 8 follows the fibers are transferred to the drafting device B, from which the yarn e.g. on a Ring spindle C arrives.
  • a spreader 3 which As shown in Fig. 3, has an arcuate curved surface, spread it out, so that the individual fibers lying more or less side by side (Fig. 2) in the Rip drafting unit A This spreader could also be comb-like be trained.
  • the drafting system A has corrugated pairs of cylinders 4.5 or 6.7 on, which ensures a secure clamping of the individual fibers.
  • the top cylinder of the drafting system can be made of an elastic material have. The pressure between the rollers of the individual pairs of cylinders remains within moderate limits and excessive cylinder wear will be avoided.
  • the Pair of cylinders 6.7 runs faster than cylinders 4.5 and at the same time is a safe one Clamping takes place between the cylinder pairs mentioned, the tear continuous fibers after the elongation limit has been exceeded. Instead of one A cutting device could also be provided for the tearing device.
  • the length of the short fibers thus produced from endless fibers depends on the Distance between the cylinder pairs 4.5 and 6.7 as well as between them Delay set roller pairs.
  • the condenser 8 then takes the fibers again to form a bundle, from which the subsequent drafting system in known manner pulls out all the fibers that the front cylinder pair 9,10 detects, while the feed cylinders 11, 12 clamp the rear fibers.
  • the Slip roller 13 monitors together with the belt 14 only that Sliding of the fibers floating between the clamping points.
  • the yarn is formed at the spindle input 24 and the yarn 25 is then through Hollow spindle withdrawn.
  • the yarn formation apparently follows a principle that was proposed in CH 642403 (in particular Fig. 23).
  • From the incoming Fiber dressing 27 forms a cladding layer from real twisted fiber ends are wound around the yarn core. This coat layer gives the yarn 25 its Firmness and appearance.
  • the fibers of the cladding layer are each at the spindle input 24 anchored to the inside of the yarn with one end, the majority 26 of each such fiber (only a fiber part 26 is indicated in Fig. 4 as an example) but is around the spindle end handled.
  • the yarn 25 is drawn off, the winding takes place turned-over fiber ends around the yarn core by the fast rotating Air vortices generated by the nozzles 23.
  • Spinning unit C in Fig. 1 by the spinning unit shown in Figure 4 (or a spinning unit that works according to the same spinning principle).
  • the yarn guide between the drafting system B and the Spinning unit C according to FIG. 1 is omitted.
  • Spinning units following the same Working principle and can also join the drafting system B are e.g. in DE-A-4105108 (US 5146740), DE-A-4131059 (US 5211001) or DE-A-19603291 Find.
  • Another spinning unit, which is also connected to the B can be used is in CH patent application 1845/00 dated September 22nd To find in 2000.
  • the drafting system B in FIG. 1 could therefore also be in the Related to the use of a newer spinning process.
  • An example of such a spinning device is in CH patent application 753/00 dated April 14, 2000, the fiber feed shown therein using a Opening roller takes place.
  • the use of this type of fiber feeding is in Connection with rotor spinning is well known and will be briefly explained below 5 are explained.
  • the corresponding spinning principle is well known today. From the front end of a Sliver (not shown) which passes through the hopper 35 by means of the feed roller 33 and Trough 34 is drawn, individual fibers through the clothing 36 of the Opening roller 32 combed and via the feed channel 37 in the rotating Rotor 30 forwarded. These fibers become a yarn in the rotor groove 38 formed, which is removed from the interior of the rotor via the discharge nozzle 39.
  • the function the opening roller is e.g. in the article "Analysis of the resolution of the sliver at the OE rotor spinning machine "in Melliand Textile Reports 4/1995, page 219ff.
  • the application of the rotor spinning process for processing chemical fibers is e.g.
  • a Spin aggregate according to Figure 5 in one Direct spinning process according to FIG. 1 can be used by drawing frame B by the feed / dissolving unit 32, 33, 34, 35 and the ring spindle C by the rotor 30 be replaced.
  • the funnel 35 (Fig. 5) can e.g. instead of the condenser 8 (FIG. 1) be provided.
  • these spinning processes either work with a fiber feed a drafting system or from an opening roller.
  • the feed unit Take fibers from the drawing unit of the direct spinning process and for spinning Recycle.
  • the higher performance of these newer spinning processes enables the economical use of a drawing unit per spin station (spinning unit).
  • FIG. 6 shows schematically a high drafting system 40 with a pneumatic Compression device according to DE-A-19514408.
  • the compression device comprises the lower outlet roller 41 of the drafting system 40, which is compared to a conventional outlet roller has a larger diameter and than Hollow roller with a perforation (not specifically shown) is executed.
  • the interior the roller 41 is subjected to a negative pressure in operation, most of the The outer surface of the roller is shielded from this negative pressure by means of a screen 42 becomes.
  • the screen 42 has an interruption 45, so that the outer surface of the roller in zone 43 is suctioned off from the inside. It are thus suction air flows 44 through the perforated surface in the Interior of the roller 41 generated.
  • the interruption 45 can be done in this way (e.g. in the form a slot) that are formed under the effect of the suction air currents Width of the fiber structure emerging from the drafting device 40 in the zone 43 is reduced.
  • a blowing nozzle 46 can also be provided in order to To intensify compression flows by means of blown air.
  • DE-A-19514408 shows the device shown for use in a Ring spinning machine provided. There is therefore also a pinch roller 47 on Outlet of the compression zone attached, which together with the roller 41 Swirl stop forms.
  • DE-A-19514408 describes the one emerging from the device Fiber dressing 48 in the form of a ring yarn, which of course is related to of the present invention is not desirable.
  • the compression principle which in one 6 is used, but can also in one Direct spinning processes can be applied according to this invention, in particular for Adjust the width of the fiber structure at a certain point in the Processing line must be passed on for further processing. Such Compression could e.g. instead of the funnel 8 (Fig.
  • the pneumatic compression between the Fiber delivery unit (drafting system or opening roller) and the spinning unit used is, in this case also a swirl stop function in the compression device becomes superfluous if the twist returning from the spinning unit otherwise before Compression zone is blocked.
  • mechanical Compression between the drawing unit A and the drafting unit B e.g. a Funnel 8, Fig. 1
  • a requirement for using a mechanical compressor is that the fibers of the dressing to be compacted have sufficient cohesive forces with each other to increase the tensile stress resist the bandage pulling through the thickener and thus the source of the compaction forces. Such cohesive forces are usually only with A coarse (not completely warped) sliver is to be found.
  • the invention is not based on the use of pneumatic compression according to DE-A- 19514408 restricted.
  • An alternative solution (without “fleece angle") is in EP-A-903430 shown.
  • Other alternatives are e.g. in DE-A-19903113; DE-A-19837180; EP-A-635 590 and EP-A-947616.
  • FIG. 7 schematically shows a drawing plant A, fiber delivery plant B and spinning unit C, the together form a device according to this invention.
  • the individual assemblies can be designed according to the explanations already explained.
  • each Module A, B, C has its own controllable drive assigned to it - for the Assembly A, drive AA; for assembly B, drive AB and for assembly C, AC drive.
  • Controllable drives for drafting systems are e.g. known from EP-A-411379, In this context, under "controllable drive AC" is also e.g. an air supply to understand an air spinning device.
  • the AA, AB or AC drives lead into the respective assemblies A, B, C the energy required to process the fibers is required.
  • the incoming filament bundle is indicated by the reference number 50, with the Reference numeral 52, the staple fiber tape forwarded after the tearing, with the Reference numeral 53 the spun fuse and with the reference numeral 54 the yarn. It are also corresponding quality sensors SF for the filament bundle 50, SB for the Sliver 52, SL indicated for the sliver 53 and SG for the yarn 54. This Sensors preferably respond to the fiber mass per unit length, whereby other quality parameters can be measured.
  • the output signals of the Sensors 50 to 54 are forwarded to a computer controller 55 and therein evaluated (see e.g. EP-A-678601).
  • At least one drive AA, AB, AC can be controlled by the computer 55 in order to Behavior of the processing system between the entry of the filament bundle 50 and adapt the runout of the yarn 54 to the results of the signal evaluation.
  • sensors SF, SB, SL and SG are also a simplified system with only advantages over a system using a single sensor at a predetermined location can offer without sensors.
  • a sensor whose Output signal Information regarding any periodic fluctuations in the Fiber mass per unit length addresses after tearing, this Fluctuations are preferably found in the sliver 52 and / or in the sliver 53 become.
  • the distortion of module B can be adjusted accordingly to the Compensate for fluctuations at least partially. But it could be the behavior of the Tear unit changed depending on information obtained in the computer become.
  • the system can thus be designed to be self-correcting.
  • the construction of the drawing station A according to FIG. 1 is in no way restrictive understand.
  • Various rice works are e.g. from US 2649623 (with a heater, see. DE 1006766); US 2721440 (also with a heater); US 2688160; US 2672654; US 2641804; US 2640228; US 2598086; US 2596306; US 2573717; US 2523854 (with compaction in the drawing plant); US 2464882; US 2249083; US 2221869; US 2197857; US 2160178; US 2132524; US 2033979; US 2031647 and US 2003400 known.
  • the filament bundle can e.g. Filaments (also called fibrils) made of polyamide, Polyester, polypropylene, polyethylene, polyacrylic, lyocell, viscose, modal or polylactide (or mixtures of these polymers).
  • the filament or fibril fineness is preferably up to 5 dtex, the finer titer ( ⁇ 1 dtex, e.g. microfiber) to be favoured.
  • the template bundle can have a fineness in the range 10 tex to 200 ktex, whereby the fineness range from 1 ktex to 50 ktex (e.g. 10 to 40 ktex) is appropriate.
EP01126468A 2000-11-10 2001-11-09 Procédé et dispositif pour filer un fil en filaments déchirables Withdrawn EP1205587A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH218800 2000-11-10
CH21882000 2000-11-10

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EP1205587A2 true EP1205587A2 (fr) 2002-05-15
EP1205587A3 EP1205587A3 (fr) 2002-12-11

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1522614A1 (fr) * 2003-10-06 2005-04-13 Schärer Schweiter Mettler AG Dispositif pour produire des filés de fibres synthétiques
EP1522613A1 (fr) * 2003-10-06 2005-04-13 Schärer Schweiter Mettler AG Dispositif pour produire des filés de fibres synthétiques
WO2006020404A1 (fr) * 2004-08-06 2006-02-23 Stowe-Pharr Mills, Inc. File de fibres haute resistance produit a partir de filaments continus de module eleve, et procede de fabrication de ce file
WO2007059510A2 (fr) 2005-11-16 2007-05-24 Ladama, Llc Compositions ignifuges et procedes et appareils de preparation afferents
CN103526352A (zh) * 2012-07-06 2014-01-22 索若德国两合股份有限公司 纺纱机的牵伸装置
EP1963039A4 (fr) * 2005-11-16 2015-04-29 Ladama Llc Compositions ignifuges et procedes et appareils de preparation afferents
CN114481395A (zh) * 2020-10-28 2022-05-13 浙江华孚色纺有限公司 一种残雪纱及其生产方法和由其形成的面料

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH256210A (de) * 1947-06-20 1948-08-15 Rieter Joh Jacob & Cie Ag Verfahren zur Herstellung eines aus kurzen Fasern bestehenden Garnes und Einrichtung zur Ausführung des Verfahrens.
DE2302594A1 (de) * 1972-01-22 1973-07-26 Gardella Spa Adriano Verfahren zur herstellung von gesponnenen faeden od. dgl. aus kontinuierlichen, vielfaserigen kunststoffstraengen
DE2418359A1 (de) * 1973-04-19 1974-11-07 Pierre Mueller Verfahren zum spinnen von kuenstlichen oder synthetischen textilfasern und nach diesem verfahren hergestellte garne
DE3717263A1 (de) * 1986-05-29 1987-12-10 Gentex Corp Mischgarn sowie verfahren und vorrichtung zum herstellen desselben
EP0678601A2 (fr) * 1990-06-25 1995-10-25 Maschinenfabrik Rieter Ag Banc d'étirage contrôlé

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH256210A (de) * 1947-06-20 1948-08-15 Rieter Joh Jacob & Cie Ag Verfahren zur Herstellung eines aus kurzen Fasern bestehenden Garnes und Einrichtung zur Ausführung des Verfahrens.
DE2302594A1 (de) * 1972-01-22 1973-07-26 Gardella Spa Adriano Verfahren zur herstellung von gesponnenen faeden od. dgl. aus kontinuierlichen, vielfaserigen kunststoffstraengen
DE2418359A1 (de) * 1973-04-19 1974-11-07 Pierre Mueller Verfahren zum spinnen von kuenstlichen oder synthetischen textilfasern und nach diesem verfahren hergestellte garne
DE3717263A1 (de) * 1986-05-29 1987-12-10 Gentex Corp Mischgarn sowie verfahren und vorrichtung zum herstellen desselben
EP0678601A2 (fr) * 1990-06-25 1995-10-25 Maschinenfabrik Rieter Ag Banc d'étirage contrôlé

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1522614A1 (fr) * 2003-10-06 2005-04-13 Schärer Schweiter Mettler AG Dispositif pour produire des filés de fibres synthétiques
EP1522613A1 (fr) * 2003-10-06 2005-04-13 Schärer Schweiter Mettler AG Dispositif pour produire des filés de fibres synthétiques
WO2006020404A1 (fr) * 2004-08-06 2006-02-23 Stowe-Pharr Mills, Inc. File de fibres haute resistance produit a partir de filaments continus de module eleve, et procede de fabrication de ce file
US7188462B2 (en) 2004-08-06 2007-03-13 Stowe-Pharr Mills, Inc. High-strength spun yarn produced from continuous high-modulus filaments, and process for making same
KR100870194B1 (ko) * 2004-08-06 2008-11-24 스토우-파 밀즈, 인코포레이티드 고탄성률 연속 필라멘트로부터 제조된 고강도 방적사, 및그의 제조 방법
WO2007059510A2 (fr) 2005-11-16 2007-05-24 Ladama, Llc Compositions ignifuges et procedes et appareils de preparation afferents
EP1963039A4 (fr) * 2005-11-16 2015-04-29 Ladama Llc Compositions ignifuges et procedes et appareils de preparation afferents
CN103526352A (zh) * 2012-07-06 2014-01-22 索若德国两合股份有限公司 纺纱机的牵伸装置
EP2682509A3 (fr) * 2012-07-06 2015-05-06 Saurer Germany GmbH & Co. KG Banc d'étirage pour un métier à tisser
CN114481395A (zh) * 2020-10-28 2022-05-13 浙江华孚色纺有限公司 一种残雪纱及其生产方法和由其形成的面料

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