EP0128863B1 - Verfahren und Vorrichtung zum Herstellen eines Umwindegarnes - Google Patents

Verfahren und Vorrichtung zum Herstellen eines Umwindegarnes Download PDF

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Publication number
EP0128863B1
EP0128863B1 EP84810240A EP84810240A EP0128863B1 EP 0128863 B1 EP0128863 B1 EP 0128863B1 EP 84810240 A EP84810240 A EP 84810240A EP 84810240 A EP84810240 A EP 84810240A EP 0128863 B1 EP0128863 B1 EP 0128863B1
Authority
EP
European Patent Office
Prior art keywords
retention surface
fiber
fiber retention
core thread
fibers
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
Application number
EP84810240A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0128863A1 (de
Inventor
Louis Vignon
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
Heberlein Hispano SA
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 Heberlein Hispano SA filed Critical Heberlein Hispano SA
Priority to AT84810240T priority Critical patent/ATE27621T1/de
Publication of EP0128863A1 publication Critical patent/EP0128863A1/de
Application granted granted Critical
Publication of EP0128863B1 publication Critical patent/EP0128863B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D02G3/367—Cored or coated yarns or threads using a drawing frame

Definitions

  • a thread or fiber composite e.g. DE-A-2613263, DE-A-2656787, DE-A-2806991, GB-A-1231198.
  • a core thread can also be introduced coaxially into the thread formation line between the surfaces, around which the fibers are then wound around by the surfaces.
  • a core consisting of a stretched fiber sliver which passes through a swirl generator formed by two rotating sieve drums is oriented and parallelized in the twister in the form of a stretched fiber sliver.
  • the fibers should be fed in transversely to the direction of the core so that the fibers fed in are wound onto the core with the smallest possible slope. This is the best way to prevent the twist of the soul from dissolving after the twist.
  • the smallest possible slope of the fibers wound on the core has the consequence that these fibers only make a comparatively small contribution to the tensile strength in the finished winding yarn.
  • the object of the invention is therefore to design the method for producing a winding yarn specified in the preamble of patent claim 1 such that the fibers fed in parallel to the core are still largely stretched and parallelized in the finished yarn and have a large pitch in order to achieve the highest possible To ensure the strength of the yarn.
  • the object is achieved according to the invention in that the fibers held on the fiber holding surface of the core are fed in their axial direction of movement in front of the swirl generator in a direction which forms an acute angle of at most 60 ° with the axial direction of movement of the core, which is based on the Core winding fibers are retained by the fiber holding surface, and that the first drawn fiber sliver is fed directly coming from a second drafting system, the rollers of which lie on the same axes as the rollers of the first-mentioned drafting system.
  • the process according to the invention thus differs from the process known from AT-A-361814 and AT-A-354906 in that fibers are fed to the rotating core in front of the swirl device, that is to say on a fiber holding surface separated from the swirl device, the movement speed of which is different from that
  • the peripheral speed of the core is independent and is selected so that the fibers that wind on the core are retained by the fiber holding surface.
  • the fibers therefore remain taut and maintain their parallel layers.
  • the fibers on the fiber holding surface are fed to the core in a direction which forms an acute angle with the axial direction of movement of the core.
  • the fibers fed are therefore wound onto the core with a large pitch and also have a large pitch in the finished winding yarn, so that they can make a significant contribution to the strength of the yarn.
  • the coaxial arrangement of the two drafting systems also distinguishes the invention in an advantageous manner from the unpublished EP-A-0085635, in which fibers also coming from a drafting system are fed to a fiber holding surface before their point of contact with a core, the core being in certain embodiments one of a second, separate drafting device coming fiber sliver can be used.
  • the fibers are retained on the fiber holding surface with a suitable force that does not prevent the transfer, but creates the desired tension of the fibers.
  • the force for holding the fibers on the fiber holding surface can expediently be generated in such a way that an air-permeable fiber holding surface is used and a negative pressure is maintained on the rear side thereof.
  • other forces could also be used instead, for example electrostatic attractive forces.
  • a device for carrying out the method according to the invention which parallelized a swirl sensor, a delivery device for feeding a core to the swirl sensor, which delivery device contains a drafting device for a fiber sliver, a movable fiber-holding surface touching the core and a second drafting device for the supply of oriented
  • fibers to the fiber holding surface at a point lying in the direction of movement thereof in front of the point of contact with the core are characterized in that the fiber holding surface is separate from the swirl sensor and can be moved independently of it and the point of contact of the fiber holding surface with the core in the direction of movement of the latter in front of the swirl device lies that at the point of contact between the fiber holding surface and the core, the direction of movement of the fiber holding surface forms an acute angle of at most 60 ° with the axial direction of movement of the core and that the rollers of the second drafting device ks lie on the same axes as the rollers of the former drafting system.
  • the devices shown in FIGS. 1 and 3 each contain a delivery device for a thread core 1, which delivery device has the form of a drafting device 2 for a fiber sliver 3 (or possibly also two or three fiber slabs).
  • the core 1 can also contain a finished core thread, preferably an endless filament, in addition to the fiber sliver 3.
  • the core 1 delivered by the drafting unit 2 runs to a swirl generator 4 or 4 ', which in the example shown consists of two mutually opposite, approximately parallel discs 5, 6 and 5', 6 ', which rotate in opposite directions and touch the thread at a circumferential point a and set it in rotation.
  • the axes 5a and 6a of the two friction disks are preferably offset from one another perpendicular to the axis of the thread (perpendicular to the plane of the drawing), so that they also exert a force in the conveying direction on the thread at the contact point a.
  • the two friction disks 5 and 6 are practically rigid disks that can carry friction linings made of, for example, polyurethane plastic on their mutually facing sides (not shown).
  • the disc 5 ' is a resilient, flexible disc which e.g. consists of polyurethane plastic and which is pressed in the area of the thread contact point a by one or more spring-loaded rollers 15 with adjustable force against the other friction disc 6.
  • the freely axially moving and rotating core 1 oriented, parallelized fibers F are fed which, while they come into contact with the core and are captured by it are held back so that they are wound up by the rotating soul.
  • the fibers are fed in by means of a rotating feed element, which is shown as a hollow disk 8 or 8 ′ which can be rotated with a shaft 7.
  • the hollow disk 8 in FIG. 1 has an annular, conical fiber holding surface 9 coaxial with the shaft 7, and it is arranged and inclined so that the peripheral surface of the core 1 at point C touches this fiber holding surface 9.
  • the fiber holding surface 9 is air permeable, e.g. B. perforated, and a negative pressure is maintained inside the hollow disc 8, on the back of the surface 9, which holds the fibers F on the surface 9 until they are caught and wound up by the rotating core 1.
  • the shaft 7 of the hollow disk 8 can be mounted in a rear end body 17 which is attached to a fixed support 18.
  • An air outlet opens into the cavity 19 surrounding the shaft bearing 16 between the closing body 17 and the disk 8
  • Suction hose 20 which is connected to a vacuum source (not shown), which maintains a vacuum on the back of the perforated fiber holding surface 9.
  • a vacuum source not shown
  • the end body 17 can have a surface which has a smaller distance in the area of the fiber transfer point C from the rear side of the perforated fiber holding surface 9 than in other areas.
  • Such a surface of the end body 17 can also be arranged inclined, as shown at 21, such that by rotating the end body 17 about the axis of the shaft 7 at a given point on the circumference, the distance between the surface 21 and the back of the fiber holding surface 9 - and thus the strength of the suction effect on the relevant area of the surface 9 - can be changed.
  • the end body 17 In order to enable the end body 17 to be rotated, it is fastened to the carrier 18 with a screw 22, the head of which lies in a groove 23 in the end body that is curved in an arc around the axis of the shaft bearing 16.
  • the hollow disk 8 'in FIG. 3 can also have a similar construction. This also has an annular fiber holding surface 9 ', which, however, is cylindrical and lies on the circumference of the disk 8'. The fiber holding surface 9 ′ also affects the peripheral surface of the core 1 at point C.
  • the direction of movement R of the surface 9 forms an acute angle a, z. B. about 45 ° or between 30 ° and 60 °.
  • the angle between the direction of movement of the surface 9 'and the axial direction of movement of the core 1 can be even smaller and for example between 5 and 10 °.
  • the speed of movement of the surface 9 or 9 ' should be slightly lower than the peripheral speed of the rotating core 1 at the contact point C, e.g. about 10 to 20% smaller, so that the supplied fibers F are not pushed onto the core, but instead have to be pulled off from the surface 9 or 9 '.
  • the core 1 is preferably rotated in such a direction that its peripheral speed on the side contacting the surface 9 or 9 ′ is opposite to the component of the direction R perpendicular to the axis of the core 1.
  • R is the direction of movement of the surface 9 or 9 'at the contact point C or the direction of the tangential feed of the fibers F to the core 1.
  • the fibers fed are not clamped between the core 1 and the surface 9, but by the rotating core pulled upwards away from the surface 9 or 9 '.
  • rotation of core 1 and surface 9 or 9 'in the same direction is also possible.
  • the oriented, parallelized fibers F which are transported to the core 1 on the surface 9 or 9 ', are fed to this surface 9 or 9' directly from a drafting system 10 which is fed with a fiber sliver 11.
  • This transfer of the fibers F from the drafting system 10 to the surface 9 or 9 ' should also take place under tension so that the fibers remain stretched and do not lose their orientation.
  • the delivery speed of the drafting system 10 should therefore be lower than the speed of movement of the annular surface 9 or 9 ', e.g. about 10 to 20% smaller.
  • the drafting units 2 and 10 in parallel or coaxially with one another.
  • the corresponding rollers or roller sections of the two drafting systems, with which the core 1 and the fibers F to be fed to it are produced simultaneously from a fiber sliver 3 or 11, can thus, as shown, each lie on the same axis, so that for the two drafting systems only one drive device is required.
  • the fiber slivers 3 and 11 are advantageously fed in parallel coming from the same direction.
  • the core 1 with the fibers F wound around it runs as a thread 12 through the swirl sensor 4 or 4 'and to a take-off device 13.
  • This can consist in the usual way of a driven metal roller and a rubber roller pressed against it.
  • the thread 12 can then be wound up in a conventional manner (not shown).
  • a spun thread 12 of high strength is therefore obtained in the manner described, although the soul 1 is fed as a stretched fiber sliver.
  • core 1 can also be incorporated into core 1, preferably an endless filament with high tensile strength. Thanks to the drawn fiber sliver, which is also fed into the core, there is only a slight risk, despite the smooth surface of the continuous filament, that the wound fibers F move axially in the finished thread 12.
  • enveloping fibers F are applied to the core 1 at only one point C by means of only one fiber feed element 8 or 8 '; Of course, one could also use two or more similar rotating feeders to feed oriented, parallelized fibers to the running core at several points in succession. Fibers of various types could also be added.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP84810240A 1983-05-18 1984-05-15 Verfahren und Vorrichtung zum Herstellen eines Umwindegarnes Expired EP0128863B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84810240T ATE27621T1 (de) 1983-05-18 1984-05-15 Verfahren und vorrichtung zum herstellen eines umwindegarnes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH269783 1983-05-18
CH2697/83 1983-05-18

Publications (2)

Publication Number Publication Date
EP0128863A1 EP0128863A1 (de) 1984-12-19
EP0128863B1 true EP0128863B1 (de) 1987-06-03

Family

ID=4239556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84810240A Expired EP0128863B1 (de) 1983-05-18 1984-05-15 Verfahren und Vorrichtung zum Herstellen eines Umwindegarnes

Country Status (13)

Country Link
US (1) US4583355A (cs)
EP (1) EP0128863B1 (cs)
JP (1) JPS59223324A (cs)
AT (1) ATE27621T1 (cs)
AU (1) AU566834B2 (cs)
CA (1) CA1226182A (cs)
CH (1) CH664773A5 (cs)
CZ (1) CZ376684A3 (cs)
DD (1) DD218401A5 (cs)
DE (1) DE3464067D1 (cs)
ES (1) ES532636A0 (cs)
SU (1) SU1314957A3 (cs)
WO (1) WO1984004550A1 (cs)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH665854A5 (de) * 1985-01-17 1988-06-15 Heberlein Hispano Sa Vorrichtung zum herstellen eines umwindegarnes.
JPS62117830A (ja) * 1985-11-15 1987-05-29 Murata Mach Ltd 紡績糸の製造装置
DE3742779A1 (de) * 1987-01-16 1988-07-28 Barmag Barmer Maschf Verfahren zur herstellung eines effektgarnes
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
US5228281A (en) * 1989-11-04 1993-07-20 Fritz Stahlecker Arrangement and method for false-twist spinning
JP2626571B2 (ja) * 1994-07-15 1997-07-02 村田機械株式会社 紡績装置
DE19815051A1 (de) * 1998-04-03 1999-10-14 Zinser Textilmaschinen Gmbh Spinnmaschine mit einem einen Saugrotor aufweisenden Streckwerk
DE19815054C5 (de) * 1998-04-03 2007-06-14 Saurer Gmbh & Co. Kg Verfahren und Spinnmaschine zum Herstellen von Coregarn
CN117512829A (zh) * 2023-11-02 2024-02-06 恒天嘉华非织造有限公司 一种多种纤维混纺设备

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522332A (en) * 1945-08-24 1950-09-12 Abbott Machine Co Textile drafting apparatus
US2523338A (en) * 1948-03-24 1950-09-26 Gilbert H Snider Yarn or thread twister
US2620517A (en) * 1950-06-02 1952-12-09 Whitin Machine Works False twister
GB1231198A (cs) * 1967-09-11 1971-05-12
DE2065441A1 (de) * 1970-08-26 1973-08-23 Schubert & Salzer Maschinen Herstellungsverfahren eines stapelfasergarnes unter zufuehrung von vereinzelten fasern
US3772873A (en) * 1970-12-24 1973-11-20 Teijin Ltd Process for false-twisting a yarn
US3768243A (en) * 1971-04-12 1973-10-30 Us Agriculture Yarn twist control apparatus for electrostatic spinner
JPS594770B2 (ja) * 1974-05-01 1984-01-31 セイコーエプソン株式会社 磁気記録媒体
FR2345541A1 (fr) * 1976-03-27 1977-10-21 Barmag Barmer Maschf Procede pour la filature de fibres en un faisceau de fibres
ATA169077A (de) * 1976-03-27 1990-09-15 Schlafhorst & Co W Verfahren zum spinnen von fasern zu einem faserverbund
DE2656787C2 (de) * 1976-12-15 1986-01-23 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Vorrichtung zum Offenend-Spinnen von Fasern zu einem Faserverbund
DE2613263B2 (de) * 1976-03-27 1978-07-27 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verfahren zum Spinnen von Fasern und Vorrichtung zur Ausführung des Verfahrens
AT345701B (de) * 1977-04-27 1978-10-10 Fehrer Ernst Vorrichtung zum spinnen textiler fasern
CS196916B1 (en) * 1977-12-29 1980-04-30 Stanislav Didek Frictional yarn spinning apparatus
AT361814B (de) * 1978-05-12 1981-04-10 Fehrer Ernst Vorrichtung zum herstellen eines garnes
DE2909615C2 (de) * 1978-05-26 1982-03-18 Ernst Dr. 4020 Linz Fehrer Vorrichtung zum Herstellen eines Garnes
DE2830669C2 (de) * 1978-07-12 1981-03-26 Peter 83236 Übersee Lippmann Verfahren und Vorrichtung zum Umspinnen eines Spinnträgers mit Fasermaterial
AT354906B (de) * 1978-08-16 1980-02-11 Fehrer Ernst Vorrichtung zum herstellen eines garnes
CH615554B (de) * 1978-09-05 Heberlein Hispano Sa Verfahren zur herstellung eines kern-mantel-garnes.
DE3023936A1 (de) * 1979-07-27 1981-02-19 Ernst Dr Fehrer Vorrichtung zum herstellen eines garnes
DE3047987C2 (de) * 1980-01-28 1986-01-23 Ernst Dr. Linz Fehrer Vorrichtung zum Herstellen eines Garnes
US4489540A (en) * 1982-01-26 1984-12-25 Asa S.A. Process and device for obtaining a spun yarn of fibres comprising an internal core and novel types of spun yarns thus made
FR2529234A1 (fr) * 1982-06-29 1983-12-30 Asa Sa Procede et dispositif pour la realisation de files de fibres comportant une ame

Also Published As

Publication number Publication date
CA1226182A (en) 1987-09-01
US4583355A (en) 1986-04-22
CH664773A5 (de) 1988-03-31
CZ376684A3 (en) 1993-04-14
EP0128863A1 (de) 1984-12-19
AU2861884A (en) 1984-12-04
ES8504280A1 (es) 1985-04-01
ATE27621T1 (de) 1987-06-15
DD218401A5 (de) 1985-02-06
AU566834B2 (en) 1987-10-29
WO1984004550A1 (fr) 1984-11-22
DE3464067D1 (en) 1987-07-09
ES532636A0 (es) 1985-04-01
JPS59223324A (ja) 1984-12-15
SU1314957A3 (ru) 1987-05-30

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