EP1161579A1 - Dispositif fausse torsion destine notamment a la fabrication de filaments spirales - Google Patents

Dispositif fausse torsion destine notamment a la fabrication de filaments spirales

Info

Publication number
EP1161579A1
EP1161579A1 EP00918812A EP00918812A EP1161579A1 EP 1161579 A1 EP1161579 A1 EP 1161579A1 EP 00918812 A EP00918812 A EP 00918812A EP 00918812 A EP00918812 A EP 00918812A EP 1161579 A1 EP1161579 A1 EP 1161579A1
Authority
EP
European Patent Office
Prior art keywords
filaments
twister
false twister
false
deflection roller
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
EP00918812A
Other languages
German (de)
English (en)
Other versions
EP1161579B1 (fr
Inventor
Bernd Heisel
Siegfried Doujak
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.)
Drahtcord Saar GmbH and Co KG
Original Assignee
Drahtcord Saar GmbH and Co KG
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 Drahtcord Saar GmbH and Co KG filed Critical Drahtcord Saar GmbH and Co KG
Publication of EP1161579A1 publication Critical patent/EP1161579A1/fr
Application granted granted Critical
Publication of EP1161579B1 publication Critical patent/EP1161579B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D02G1/08—Rollers or other friction causing elements
    • D02G1/082—Rollers or other friction causing elements with the periphery of at least one disc
    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02—Machine details; Auxiliary devices
    • D07B7/025—Preforming the wires or strands prior to closing

Definitions

  • the present invention relates to a false twister, in particular for the production of spiral filaments, which has a rotatable drivable twister with at least one deflection roller wrapped around the filaments.
  • the invention further relates to a method for producing spiral filaments, in particular using such a false twister, in which at least two filaments are brought together and plastically deformed in a false twister with at least one deflection roller wrapped by the filaments.
  • filament is not to be considered restrictive, but is intended to include both single and multiple filaments and strands.
  • a false twister and a manufacturing method of the type mentioned at the outset are known from WO 97/1 2091 and WO 97/1 2092, which go back to the same applicant.
  • the basic structure and mode of operation of a false twister are also shown in JP-A 02-269885.
  • a false twister has a rotatable drivable twister with at least one deflection roller.
  • several filaments are combined by a suitable device, passed through the twist parallel to the axis of rotation of the twist and wrapped around the deflection roller of the twist.
  • a downstream puller is used to move the filaments through the false twister.
  • the twist causes the filaments to be plastically deformed. This plastic deformation already exists in the false twister.
  • the pull-out mechanism arranged downstream of the false twister applies great forces to the already plastically deformed filaments. This affects the plastic deformation and undesirable tensions are introduced into the filaments.
  • the object of the present invention is therefore to significantly reduce the forces acting on the filaments after the plastic deformation.
  • this object is provided in a false twister of the type mentioned for the solution, that at least one order ⁇ deflection roller can be driven.
  • the force required to move the filaments through the false twister is at least partially applied to the filaments in the false twister.
  • the filaments are wrapped around the deflection roller, so that forces can be transferred to the filaments by driving the deflection roller. From the entry into the false twister up to and including the wrapping of the deflection roller, the filaments are twisted around each other and thus support each other. In addition, very high tensions in the filaments are required in this area in order to wanted to create plastic deformation.
  • the spirally deformed filaments are separated from one another in the area from the deflection roller to the outlet from the false twister. The forces acting on the individual filaments are low, since the force required to move the filaments is introduced by the deflection roller which is wrapped around the filaments. Depending on the application, a pull-out mechanism can be dispensed with completely, so that the required installation space and the investment costs are also reduced.
  • the deflection roller can advantageously be driven by rotating the twister. This makes it possible to dispense with a separate drive for the deflection roller, so that the mass of the twister and the investment costs can be kept low.
  • the rotational speed of the driven deflection roller and the rotational speed of the twister can be adjusted with respect to one another. This enables an optimal adaptation to the respective boundary conditions and a targeted adjustment of the spiral shape of the filaments to be produced.
  • a gearbox attached to the twister is provided for driving the deflection roller.
  • This gear enables the deflection roller to be coupled to a separate drive element, so that the flexibility is increased.
  • the gear is in engagement with a gear wheel that is separate from the twister. This construction is simple, robust, durable and inexpensive.
  • the gear wheel is advantageously arranged upstream or downstream of the rotator. This arrangement enables the false twister according to the invention to be optimally adapted to different boundary conditions such as the mounting of the twister or the available installation space.
  • the gear is fixed.
  • a coupling between the rotation of the deflection roller and the rotation of the twister is automatically achieved.
  • a change in the speed of the twister is automatically transferred to the deflection roller, so that complex control or adjustment processes can be omitted. Fluctuations in the speed of the twister are automatically compensated.
  • the gear wheel is fastened to a perforated disk for bringing the filaments together.
  • an additional holder for the gear can be dispensed with, so that the investment costs are reduced.
  • the gear wheel can be rotatably driven.
  • the automatic coupling described above occurs between the speed of the twister and the speed of the deflection roller.
  • the speed of the deflection roller can be set independently of the speed of the twister by driving the gearwheel. This enables the production of different shapes of spiral filaments.
  • the flexibility of the false twister according to the invention is significantly increased.
  • the transmission advantageously has a shaft which is rotatably mounted on the rotator. This shaft makes it possible to dispense with large gears with correspondingly large moments of inertia.
  • the shaft is arranged essentially parallel to the axis of rotation of the twister. This reduces the space requirement in the radial direction.
  • the deflection roller is provided with radially projecting flanges for guiding the filaments. This prevents the filaments from slipping off the deflection roller.
  • the deflection roller is advantageously conical in the area between the flanges.
  • the conical design of the deflection roller always pushes the incoming filaments to the same flange. This reliably prevents tangling of the filaments in the area of the deflection roller.
  • the method according to the invention provides that the force required to move the filaments through the false twister is at least partially applied to the filaments in the false twister.
  • the force acting on the already plastically deformed filaments is significantly reduced. 10 to 100 percent, in particular more than 50 percent, more than 70 percent, more than 85 percent or more than 97 percent of the force required to move the filaments is advantageously applied to the filaments in the false twister (10) .
  • the exact proportion of the force applied to the filaments in the false twister depends on the individual case, in particular on the type of filaments, the diameter of the filaments, the material used and the desired spiral shape.
  • the method according to the invention enables an optimal adaptation to the different conditions of each individual case.
  • the wrap angle of the filaments around the deflection roller is set as a function of the force applied in the false twister.
  • the maximum force that can be transferred from the deflection roller to the filaments depends exponentially on the wrap angle.
  • a suitable adjustment of the wrap angle, in particular via the number of wraps, prevents inadmissible sliding of the filaments relative to the deflection roller.
  • the rotational speed of the deflection roller and the rotational speed of the twister are varied with respect to one another in order to change the spiral shape of the filaments.
  • the time required to produce a turn is calculated from the speed of the twister.
  • the speed of the deflection roller together with its diameter determines the speed of movement of the filaments by the twister. From the time for making a turn, the speed and the diameter of the deflection pulley can height of the spiral can be calculated.
  • the spiral filaments are wound directly onto spools after they emerge from the false twister.
  • a downstream pull-out unit can be dispensed with, so that the space requirement and the investment costs are reduced.
  • Figure 1 is a schematic representation of the manufacturing process using a false twister according to the invention
  • Figure 2 is a schematic drive diagram of the false twister with driven deflection roller
  • Figure 3 shows a longitudinal section through an inventive
  • FIG. 4 shows an enlarged detail from FIG. 3
  • FIG. 5 shows a schematic illustration of the section V-V from FIG. 4.
  • Figure 1 schematically shows the Heinrichsabiauf for spiral Fi ⁇ lamente 1 1 '.
  • the filaments 1 1 are drawn off from bobbins 1 2 and guided over feed rollers 1 3 through a perforated disc 1 4 in the direction of arrow 32 through a false twister 1 0 and looped around deflection rollers 1 8 of the false twister 1 0.
  • the fish twist 1 0 is like indicated by the table, rotatably driven, so that the individual filaments 1 1 are twisted around one another and plastically deformed.
  • Both single and multiple filaments and strands in spiral form can be produced with the false twister according to the invention.
  • the false twister according to the invention.
  • not only two filaments, but optionally three or more filaments can also be guided through the false twister 10 at the same time and plastically deformed.
  • FIG. 2 shows a schematic diagram of the false twister 1 0 with driven deflection roller 1 8.
  • the false twister 1 0 has a rotator 17, which is rotatably driven in the arrow direction 29 about an axis of rotation 15 by a motor 33 and a drive means 34.
  • the filaments 1 1 are inserted parallel to the axis of rotation 1 5 in the twister 1 7 and looped around the deflection roller 1 8.
  • the deflection roller 1 8 is mounted on a shaft 1 9, which is rotatably mounted on the rotator 1 7 via bearings 20, 21.
  • a gear 23, 24, 25, 26 attached to the twister 1 7 is provided to drive the deflection roller 1 8, a gear 23, 24, 25, 26 attached to the twister 1 7 is provided.
  • the transmission comprises a gear 23 which is connected in a rotationally fixed manner to a further gear 24 via a shaft 26. This gear 24 meshes with a gear 25 on the shaft 1 9 for the pulley.
  • the shaft 26 is arranged on bearings 27, 28 rotatably on the twister 1 7 substantially parallel to its axis of rotation 1 5.
  • the gear 23, 24, 25, 26 is in engagement with a further gear 22, which is separate from the twister.
  • the gear wheel 22 is arranged downstream of the rotator 17.
  • the gear wheel 22 can be stationary or can be driven rotatably in the direction of arrow 43.
  • This transmission ratio i is independent of the actual speed of the twist 17.
  • the deflection roller 1 8 can be driven in this way by rotating the twister 17, the speed of the deflection roller 18 being calculated from the speed of the twister 17 via the transmission ratio i leaves.
  • the gear wheel 22 can be rotatably driven, as indicated schematically by the direction of the arrow 43.
  • the speed of the driven pulley 1 8 and the speed of the twister 1 7 are adjustable with respect to each other. If the gear 22 in the same ben direction of rotation as the twist 1 7 is driven, the speed of the deflection roller 1 8 is reduced. With a drive in the opposite direction, the speed of the deflection roller 1 8 is increased. As a result, different spiral shapes of the filaments 1 1 'can be set. The time for producing a turn can be calculated from the speed of the twister 1 7. The speed of the deflecting roller 1 8 together with its diameter defines the speed of movement of the filaments 1 1 in the direction of arrow 32 by the twister 1 7. The pitch or lay length of the spiral filaments 11 'can thus be adjusted by varying the speed of the deflection roller 18.
  • the driven deflection roller 1 8 causes the force required for moving the filaments 1 1 by the false twister 1 0 to be applied directly in the false twister 1 0.
  • the proportion of the force generated by the deflection roller 1 8 depends on the individual case.
  • the speed of the deflection roller 1 8 the speed of movement of the filaments 1 1 is determined by the twister 10. This speed of movement can be selected to be somewhat lower than the winding speed of the spools 16 in FIG. 1. In this case, the plastically deformed filaments 1 1 'downstream of the false twister 10 are subjected to low voltages.
  • the speed of the deflection roller 1 8 can be precisely matched to the winding speed of the reels 1 6.
  • FIGS. 3 to 5 show a constructional embodiment of a false twister 1 0 according to the invention.
  • the same and functionally identical components as in FIG. 2 have been given the same reference numerals. For explanation, reference is made to the above statements.
  • the false twister 1 0 has a shaft 35 which is rotatably mounted about the axis 1 5 by means of bearings 36, 37.
  • a groove 38 is provided for the drive, in which the drive means 34 engages.
  • the filaments 11 are introduced in the direction of arrow 32 into the twister 17, looped around the deflection roller 18 and then passed through an inner bore of the shaft 35 to the coils 160.
  • the deflection roller 1 8 has two flanges 39, 40 spaced apart from one another for guiding the filaments 1 1. In the area 41 between the flanges 39, 40, the deflection roller 18 is conical. In this way, the filaments are always pushed towards the flange 39. A tangling or entangling of the filaments 1 1 in the region of the deflection roller 1 8 is reliably avoided.
  • the shaft 1 9 and the bearings 20, 21, the twister 1 7 is provided with a removable cover 42. The diameter of the cover 42 is larger than the outer diameter of the flanges 39, 40 of the deflection roller 1 8.
  • the gear wheel 22 is arranged in a fixed manner and fixed upstream of the rotator 17 to the perforated disk 14 for bringing the filaments 11 together.
  • an additional holder for the gear 22 can be dispensed with.
  • the filaments 1 1 are inserted in the arrow direction 32 through the perforated disc 1 4 into the twister 1 7.
  • the twister 1 7 they are looped once or several times around the deflection roller 1 8.
  • the deflection roller 1 8 is driven in the direction of arrow 31, so that at least part of the force required for moving the filaments 1 1 by the false twister 1 0 is applied to the filaments 1 1 in the false twister 1 0.
  • the wrap angle of the filaments 1 1 around the deflection roller 1 8, in particular the number of wraps, is set as a function of the force applied in the false twister. If only one deflection roller 1 8 is used, the number of wraps can be changed. When using several deflection rollers 1 8, one or more of which are rotatably driven, the wrap angle can be changed by the mutual arrangement and the diameter of the deflection rollers 1 8. In this way, an inadmissible sliding of the filaments 1 1 on the deflection roller 1 8 is prevented for each application.
  • the spiral filaments 1 1 ' can be wound onto the bobbins 1 6 directly after exiting the false twister 1 0 without using a puller. Dispensing with a downstream pull-out unit reduces investment costs and space requirements.
  • the present invention achieves a substantial reduction in the forces acting on the spiral filaments 11 ′ after the plastic deformation.
  • different spiral shapes can be men of the filaments 11 'are produced, so that the flexibility of the false twister 10 according to the invention is significantly increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Ropes Or Cables (AREA)
  • Wire Processing (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP00918812A 1999-03-18 2000-03-17 Dispositif fausse torsion destine notamment a la fabrication de filaments spirales Expired - Lifetime EP1161579B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19912192A DE19912192C2 (de) 1999-03-18 1999-03-18 Falschdraller und Verfahren insbesondere zum Herstellen von spiralförmigen Filamenten
DE19912192 1999-03-18
PCT/EP2000/002420 WO2000056961A1 (fr) 1999-03-18 2000-03-17 Dispositif fausse torsion destine notamment a la fabrication de filaments spirales

Publications (2)

Publication Number Publication Date
EP1161579A1 true EP1161579A1 (fr) 2001-12-12
EP1161579B1 EP1161579B1 (fr) 2004-08-18

Family

ID=7901503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00918812A Expired - Lifetime EP1161579B1 (fr) 1999-03-18 2000-03-17 Dispositif fausse torsion destine notamment a la fabrication de filaments spirales

Country Status (15)

Country Link
US (1) US6681555B1 (fr)
EP (1) EP1161579B1 (fr)
JP (1) JP4575598B2 (fr)
KR (1) KR100591707B1 (fr)
CN (1) CN1109143C (fr)
AT (1) ATE274082T1 (fr)
AU (1) AU3962800A (fr)
BR (1) BR0009095B1 (fr)
CZ (1) CZ299927B6 (fr)
DE (2) DE19912192C2 (fr)
ES (1) ES2228495T3 (fr)
PL (1) PL202373B1 (fr)
RU (1) RU2220238C2 (fr)
SK (1) SK286113B6 (fr)
WO (2) WO2000055405A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4597400B2 (ja) * 2001-02-28 2010-12-15 金井 宏彰 単線スチールコードの製造方法及びその装置
DE10349030B4 (de) * 2003-10-13 2005-10-20 Gkn Driveline Int Gmbh Axialverstellvorrichtung
FR3028872B1 (fr) * 2014-11-25 2017-05-19 Michelin & Cie Procede de fractionnement
FR3028873B1 (fr) * 2014-11-25 2016-12-23 Michelin & Cie Installation de fractionnement
CN106195139A (zh) * 2016-07-26 2016-12-07 贵州钢绳股份有限公司 一种成、股绳机多级变速装置
FR3099192A1 (fr) * 2019-07-25 2021-01-29 Compagnie Generale Des Etablissements Michelin Procédé de fractionnement et de réassemblage d’un assemblage à deux couches
FR3099191A1 (fr) 2019-07-25 2021-01-29 Compagnie Generale Des Etablissements Michelin Câble ouvert renforçant à haute compressibilité
FR3099189A1 (fr) * 2019-07-25 2021-01-29 Compagnie Generale Des Etablissements Michelin Procédé de fractionnement et de réassemblage

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DE292331C (fr) * 1914-02-20 1916-06-07
US3782090A (en) * 1971-12-08 1974-01-01 Chadbourn Inc Method and apparatus for producing textured yarn
DE2552078C3 (de) * 1975-11-20 1981-10-29 Felten & Guilleaume Carlswerk AG, 5000 Köln Verseilkopf
DE7608694U1 (de) * 1976-03-20 1980-07-24 Drahtcord Saar Gmbh & Co Kg, 6640 Merzig Vorrichtung zum verdrillen von faeden
JPS6017856B2 (ja) * 1976-05-25 1985-05-07 貞彰 高木 立体カ−ルフイラメントの形成方法とその装置
DE2724419C2 (de) * 1977-05-28 1983-03-24 Fried. Krupp Gmbh, 4300 Essen Rohrverseilmaschine
US4385486A (en) * 1979-10-22 1983-05-31 Tokusen Kogyo Kabushiki Kaisha Apparatus for manufacturing open cord
US4397141A (en) * 1981-04-15 1983-08-09 National-Standard Company Method and apparatus for making balanced metallic strand
JPH02269885A (ja) * 1989-04-10 1990-11-05 Sumitomo Electric Ind Ltd スチールコードの製造方法
JP3070260B2 (ja) * 1991-06-21 2000-07-31 住友電気工業株式会社 ゴム物品補強用金属コードの製造装置及び製造方法
US5487262A (en) * 1993-04-20 1996-01-30 N.V. Bekaert S.A. Method and device for overtwisting and undertwisting a steel cord
EP0627521B1 (fr) * 1993-04-20 1997-11-19 N.V. Bekaert S.A. Traitement d'un câble d'acier
DE19535598A1 (de) * 1995-09-25 1997-03-27 Drahtcord Saar Gmbh & Co Kg Verfahren zur Herstellung eines Stahlcords
DE19535595C2 (de) * 1995-09-25 2000-12-07 Drahtcord Saar Gmbh & Co Kg Verfahren zur Herstellung eines spiralförmigen Drahtfilament, insbesondere zur Verstärkung von Gummi- oder Kunststoffartikeln, Vorrichtung zur Durchführung des Verfahrens und nach dem Verfahren herstelltes Drahtfilament

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See references of WO0056961A1 *

Also Published As

Publication number Publication date
KR100591707B1 (ko) 2006-07-03
JP4575598B2 (ja) 2010-11-04
EP1161579B1 (fr) 2004-08-18
KR20010112345A (ko) 2001-12-20
BR0009095B1 (pt) 2011-01-25
DE19912192C2 (de) 2001-03-08
DE50007483D1 (de) 2004-09-23
AU3962800A (en) 2000-10-09
ES2228495T3 (es) 2005-04-16
BR0009095A (pt) 2001-12-26
CN1109143C (zh) 2003-05-21
SK286113B6 (sk) 2008-03-05
US6681555B1 (en) 2004-01-27
PL202373B1 (pl) 2009-06-30
DE19912192A1 (de) 2000-09-28
CZ20013236A3 (cs) 2002-10-16
PL350624A1 (en) 2003-01-27
ATE274082T1 (de) 2004-09-15
WO2000055405A2 (fr) 2000-09-21
SK12922001A3 (sk) 2002-11-06
CZ299927B6 (cs) 2008-12-29
RU2220238C2 (ru) 2003-12-27
WO2000056961A1 (fr) 2000-09-28
CN1344338A (zh) 2002-04-10
JP2002540304A (ja) 2002-11-26

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