EP2567918B1 - Method and device for traversing of yarn on textile machines - Google Patents

Method and device for traversing of yarn on textile machines Download PDF

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Publication number
EP2567918B1
EP2567918B1 EP12183041.8A EP12183041A EP2567918B1 EP 2567918 B1 EP2567918 B1 EP 2567918B1 EP 12183041 A EP12183041 A EP 12183041A EP 2567918 B1 EP2567918 B1 EP 2567918B1
Authority
EP
European Patent Office
Prior art keywords
traversing rod
traversing
magnets
rod
textile machine
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.)
Not-in-force
Application number
EP12183041.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2567918A2 (en
EP2567918A3 (en
Inventor
Jaroslav Beran
Jan Valtera
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.)
Technicka Univerzita v Liberci
Rieter CZ sro
Original Assignee
Technicka Univerzita v Liberci
Rieter CZ sro
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 Technicka Univerzita v Liberci, Rieter CZ sro filed Critical Technicka Univerzita v Liberci
Publication of EP2567918A2 publication Critical patent/EP2567918A2/en
Publication of EP2567918A3 publication Critical patent/EP2567918A3/en
Application granted granted Critical
Publication of EP2567918B1 publication Critical patent/EP2567918B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2818—Traversing devices driven by rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2881—Traversing devices with a plurality of guides for winding on a plurality of bobbins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/38—Arrangements for preventing ribbon winding ; Arrangements for preventing irregular edge forming, e.g. edge raising or yarn falling from the edge
    • B65H54/385—Preventing edge raising, e.g. creeping arrangements
    • B65H54/386—Preventing edge raising, e.g. creeping arrangements with energy storing means for recovering the kinetic energy at the end of the traversing stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • a method for traversing of a yarn upon its winding on a bobbin mounted in a winding mechanism of an operating unit of a textile machine at which traversing motion of the yarn is generated through a straight-line reciprocating motion of a traversing rod being common for a row of operating units, whereas before the dead centre of the traversing rod its kinetic energy is transformed to potential energy, which contributes to deceleration in motion of the traversing rod, behind the dead centre the potential energy of the traversing rod changes to kinetic energy, which contributes to acceleration in motion of the traversing rod.
  • Winding of cylindric or taper cross-wound bobbins on textile machines with a row of side by side arranged operating units, for example on open-end spinning machines, winding machines or two-for-one twisters is commonly performed by means of a continuous traversing rod passing along one side of operating units of the machine.
  • the bobbins being wound during winding roll by their surface being wound on a cylindrical surface of the driving roller, while their rotation axis is parallel with an axis of the traversing rod and the traversing rod upon winding of the bobbin performs a straight-line reciprocating motion.
  • the stroke of the traversing rod corresponds to the length of a surface line of the package of the bobbin being wound.
  • the speed of the yarn being delivered to the bobbin being wound is high, which requires also a high frequency of straight-line reciprocating motion of the traversing rod.
  • the traversing rod has e.g. a length of 30 metres, thus having a considerable weight.
  • the device according to CZ 1997-2323 A3 derives motion of the traversing rod through a cam mechanism.
  • springs which absorb its dynamic forces and they speed it up retroactively.
  • the position of the springs with respect to the machine frame is a constant one, or it can be displaced according to displacement of the outer dead centres of the traversing rod upon overlapping of edges on the bobbin.
  • CZ 300588 B6 proposes to connect to the traversing rod rotationally an end of a drawbar, whose second end is rotationally connected with a rotationally mounted main crank. This crank creates an output means of a rotational electronically controlled drive coupled with a driving mechanism.
  • the main crank together with the electronically controlled drive is connected with a frame of the textile machine through a displaceable coupling to ensure overlapping of the yarn package in dead centres, so called blurring.
  • Angular speed of the main crank is continuously decreased or increased by means of the rotational electronically controlled drive controlled with a controlling mechanism upon motion of the traversing element from one dead centre to the second dead centre. This happens in linear relation on the required magnitude of angle of yarn crossing on the bobbin being wound and/or in linear relation on position of the traversing element, through which the required angle of yarn crossing on the bobbin being wound and/or the required course for speed of motion of the traversing element is achieved.
  • Function of such a device may satisfactorily meet requirements for a quality arrangement of package, at the same time it may also contribute to solving problems of inertia forces generated by a reciprocating motion of the traversing rod.
  • Shortcoming of such control means is their complexity thus also the price, at the same time such complexity brings increase of failure rate.
  • CZ 2007-214 A3 utilises two couples of magnets positioned by identical poles against each other, out of which always one is mounted adjustably on a machine frame, the second in a fixed manner on a traversing rod, while they are mutually adjacent with the same poles.
  • This solution brings an efficient damping of straight-line reciprocating motion of the traversing rod in area of dead centres, while energy of inertia mass of the rod in time before the dead centre is accumulated and then this energy is consumed which contributes to starting run of the traversing rod behind dead centre.
  • the goal of bumper is to stop motion of the magnet on a short track and to prevent damage of magnets during undesired hard bottoming of magnets on each other.
  • the goal of the invention is to remove or at least substantially reduce shortcomings of the background art and to bring good possibilities when setting position of dead centres of a traversing rod, at the same time to achieve a high level of accumulation of energy of the traversing rod being stopped and its backward expenditure.
  • the goal of the invention has been achieved by a method for traversing of yarn upon its winding on a bobbin mounted in a winding mechanism of an operating unit of a textile machine, whose principle consists in that, before dead centre of the traversing rod in the first phase of its deceleration kinetic energy of the traversing rod transforms to potential energy of a magnetic field, and in the second phase of deceleration to potential energy of a field of elastic forces, which contributes to deceleration in motion of the traversing rod, whereas, subsequently behind the dead centre of the traversing rod in the first phase of acceleration of the traversing rod the potential energy of the field of elastic forces transforms to kinetic energy of the traversing rod, and in the second phase of its acceleration the potential energy of the magnetic field transforms to kinetic energy of the traversing rod, which contributes to acceleration in motion of the traversing rod.
  • an advantage of the invention is in that it is without beats.
  • the advantage is a flat characteristics in the second phase of deceleration, which secures a minimum change in force during the blurring cycle, this without necessity of an additional controlled motion of stationary magnet towards the machine frame as it is in CZ-2007-214 A3 .
  • the goal of the invention has also been achieved by a textile machine with a device for yarn traversing being wound on a winding bobbin mounted in a winding mechanism of an operating unit of the textile machine, whose principle consists in that, magnetic couples are formed of at least one moving magnet mounted on the traversing rod and two stationary magnets, which are on the machine frame mounted by means of at least one elastically deformable means in a prestressed status, while prestress of elastically deformable means is lower than mutual detachment force of magnetic couple at mutual contact of their identical poles.
  • the device comprises two stationary magnets, out of which each is coupled with one independent elastically deformable means.
  • Each of stationary magnets is mounted in an independent bushing, while between it and bottom of the bushing there is inserted elastically deformable means, preferably a compression spiral spring.
  • the device is relatively cheap, easily adjustable.
  • the device comprises two stationary magnets coupled with one common elastically deformable means.
  • the magnets are mounted displaceably in cavity of a common bushing in a fixed manner connected with the machine frame and arranged axially with the traversing rod, while the elastically deformable means is arranged between the stationary magnets, while the moving magnets are attached to the traversing rod outside the bushing so that the bushing is to be found between the moving magnets, at the same time the difference in distance of mutually adjacent faces of moving magnets and the distance of mutually averted faces of stationary magnets in a prestressed status of an elastically deformable means equals to a basic stroke of the traversing rod which is lower than a real stroke of the traversing rod.
  • each stationary magnet is mounted displaceably in cavity of one of two independent bushings in a fixed manner connected with machine frame and arranged axially with the traversing rod, while the elastically deformable means is always arranged between the bushing bottom and the stationary magnet, while the moving magnets or moving magnet is attached on the traversing rod in area between the bushings, at the same time the difference in distance of mutually adjacent faces of the stationary magnets in a prestressed status of the elastically deformable means and the distance of mutually averted faces of the moving magnets or faces of the moving magnet equals to a basic stroke of the traversing rod which is lower than a real stroke of the traversing rod.
  • the moving magnets on the traversing rod are attached so that they can be re-adjusted. This enables to modify length of packages.
  • the magnets themselves, it is advantageous if the magnets are arranged symmetrically to the longitudinal axis of the traversing rod which enables to create them as rings, with whose face side a mating surfaces of elastically deformable means are in contact.
  • the elastically deformable means is formed of the spring, preferably of a compression spiral spring. This is an affordable part, it can be easily adjusted and may be produced in narrow production tolerances from the point of view of their force characteristics.
  • Exemplary embodiments of the device according to the invention are schematically represented in drawings, where shows Fig. 1 a view to a part of means of a couple of mutually neighbouring operating units of textile machine in embodiment with one spring, Fig. 2 a detail of mutual position of the traversing rod with guide of yarn being wound, magnets and spring in area of dead centre of reciprocating motion of the traversing rod, Fig. 3 dependence of a course of detachment force of the magnets and force of the compression spring before attaining the dead centre of reciprocating motion of the traversing rod, Fig. 4 . view to a section of means of a couple of mutually neighbouring operating units of the textile machine in embodiment with two springs and Fig. 5 detail of mutual position of the traversing rod with guide of yarn being wound, magnets and spring in area of dead centre of reciprocating motion of the traversing rod for embodiment with two springs.
  • a device on which there are two neighbouring operating units of a spinning frame.
  • a continuous traversing rod 2 mounted slidably in a slide-way 11 and connected to a known not represented driving mechanism, through which it is brought into a controlled straight-line reciprocating motion and through which the position of dead centers of the traversing rod 2 is controlled.
  • a traverse guide 21 of yarn for operating unit represented on the LH side
  • 22 for operating unit represented on the RH side
  • a cylindrical bushing 4 is attached, in detail represented in the Fig. 2 .
  • the continuous traversing rod 2 thus passes through the bushing 4 .
  • Two cylindrical guidance 43 are slidably mounted in an inner cylindric cavity of the bushing 4 between its collars 41 , 42 , in whose cavity a compression spiral spring 44 is mounted.
  • the collar 42 to the body of bushing 4 is attached in a dismountable manner e.g. by means of a screw 45 . This enables to insert the guidance 43 and the spring 44 into a body of the bushing 4 .
  • ring permanent stationary magnets 5 , 6 which are mutually adjacent e.g. with opposite poles.
  • the inner diameter of the ring stationary magnets 5 , 6 is greater than the outer diameter of the traversing rod 2 .
  • the elastically deformable means need not to be only the compression spiral spring 44 . It can be of course superseded by another elastically deformable means, e.g. other type of metal spring, possibly a pneumatic spring.
  • Mutual arrangement of the magnets 5 , 210 , and 6 , 220 is such that the difference of distance vp 1 of mutually adjacent faces of the moving magnets 210 , 220 and distance vo 1 of mutually averted faces of the stationary magnets 5 , 6 is a length of basic stroke of the traversing rod 2 , at which the spring 44 is permanently constantly prestressed without compression in area of dead centers of the traversing rod 2 .
  • Real stroke of the traversing rod 2 is greater than the basic stroke.
  • the difference of the real stroke and of the basic stroke equals to a maximum on machine adjustable stroke of blurring of edges in package. Upon motion of the traversing rod this difference in lengths causes compression of the spring 44 in dead centers of motion of the traversing rod.
  • Compression rate of the spring 44 is variable and corresponds to actual dead centre during blurring cycle.
  • the moving magnets 210 , 220 with respect to the traversing rod 2 may be attached displaceably. This is at a greater number of units according to the invention arranged along one traversing rod 2 less advantageous from the point of view of machine adjustment, but it enables to change the length of the basic stroke of the traversing rod 2 at the same time preserving a size and course of detachment forces before the dead centers of the traversing rod 2 .
  • a continuous driving shaft 7 of an winding mechanism mounted rotatably in bearings 12 and connected to a known not represented drive.
  • a driving roller 71 is attached, with whose friction circumference a surface of a bobbin 72 being wound is in contact during yarn 3 winding.
  • the bobbin 72 being wound has a cylindrical shape, its rotation axis is parallel with rotation axis of the driving shaft 7 .
  • the shown exemplary embodiment does not specify number of bushings for a whole one side of the spinning machine.
  • the bushing 4 with the stationary magnets 5 , 6 and to it corresponding couple of the moving magnets 210 , 220 need not to be arranged in each section of the operating units, or vice versa there can be a greater number of them than it corresponds to number of sections.
  • a space may be utilised, that is usually available between the neighbouring sections of the machine. This enables an additional installation of the device according to the invention on spinning machines being already in operation. It is obvious that in cases when a greater number of the bushings 4 positioned on one traversing rod 2 is utilised, some bushing 4 may be positioned at an end of the traversing rod 2 .
  • Fig. 3 represents dependence of a course of detachment force F of the magnets 5 and 210 , and a force of the compression spring 44 on position x of the traversing rod 2 in area of dead centre of its straight-line reciprocating motion.
  • This position is given by setting of a regulation mechanism which in a known manner controls a change in position of the dead centers of the traversing rod 2 upon winding the yarn 3 , through which overlapping of package in dead centres i.e. blurring is achieved.
  • the spring 44 is mounted in the bushing 4 with prestress F 1 .
  • the spring 44 has a flat linear characteristics, the magnets 5 , 210 do not practically approach mutually, but owing to the weak spring 44 in the second phase of motion of the traversing rod 2 on the LH side situated guidance 43 upon compression of the spring 44 is being displaced with respect to the body of of the bushing 4 to the right.
  • Detachment force increases on the track d 12 , from the value F 1 in position x 1 to value F 2 in position x 2 in linear manner and gradually.
  • the distance d m between the magnets at prestress F 1 is given by equilibrium of forces between the magnet and the magnet with spring. During compression of the spring the force increases only at minimum and so the resultant gap d m between the magnets also decreases slightly, it does not change practically.
  • Fig. 4 and detailed Fig. 5 represent an alternative embodiment of the device according to the invention, which comprises two bushings 8 attached to the frame 1 of the machine axially with the traversing rod 2 and mutually in a mirror view to the left and to the right in neighbourhood of the traverse guide 21 of the yarn 3 of the operating unit represented on the LH side.
  • the bushings 8 on mutually averted sides have fixed faces 81 and on mutually adjacent sides they have collars 82 .
  • a cylindrical guidance 83 In the bushings 8 from the side of the collar 82 always is slidably mounted a cylindrical guidance 83 , in whose cavity the compression spiral spring 84 is mounted, whose second side leans against the fixed face 81 of the bushing 8.
  • the collar 82 to a body of the bushing 8 is attached in a dismountable manner e.g. by means of a screw 85 . This enables to insert the guidance 83 and the spring 84 into the body of the bushing 8 .
  • the ring permanent stationary magnets 5 , 6 In an external face recesses 831 of the guidance 83 of the first and the second bushing 8 are attached the ring permanent stationary magnets 5 , 6 . Inner diameter of the ring stationary magnets 5 , 6 is greater than outer diameter of the traversing rod 2 .
  • a longer ring moving magnet 200 represented schematically under axis of the traversing rod 2 .
  • a longer ring moving magnet 200 represented schematically under axis of the traversing rod 2 .
  • two ring moving magnets 210 , 220 are attached on the traversing rod 2 .
  • the moving magnet 200 , or the moving magnets 210, 220 to the respective stationary magnets 5 , 6 are adjacent by the identical poles, through which practically create cooperating couples of mutually repelling magnets, similarly as it is at embodiment represented in Fig. 1 .
  • Mutual arrangement of magnets 5 , 6 , 200 (possibly 210 , 220 ) is such, that a difference in distance vp 2 of mutually adjacent faces of stationary magnets 5 , 6 and a distance vo 2 of averted faces of the moving magnet 220 (possibly of mutually averted faces of the moving magnets 210 , 220 ) represents length of the basic stroke of the traversing rod 2 , at which the springs 84 are permanently constantly prestressed without compression in area of the dead centres of the traversing rod 2 .
  • the real stroke of the traversing rod 2 is greater than the basic stroke.
  • the difference of the real stroke and of the basic stroke equals to the maximum on the machine adjustable stroke of blurring of the edges in package.
  • the principle advantage of the solution according to this invention is ability of accumulation of energy without impulses and flat characteristics of the spring 44 , 84 in the last section of track of the traversing rod 2 .
  • the size and course of detachment forces of the magnets 5 , 210 in combination with the flat characteristics of the spring 44 , 84 enable to achieve a high degree of energy accumulation on the short track d 02 before the dead centre of the traversing rod 2 , with low difference of final forces F 1 , F 2 at variable track d 02 in stroke of the traversing rod 2 .
  • Positioning of accumulators along the whole traversing rod enables to eliminate impact of longitudinal oscillation of the traversing rod, thus enables to achieve highly accurate positions in the dead centers of guides attached to the traversing rod 2 and the ideal blurring, thus the quality of package being formed.
  • the device according to the invention is simple in its structure. This fact enables to install them on more places along the traversing rod 2 .
  • the exemplary embodiments are cited with the goal to explain perfectly the method and the device according to the invention, at the same time their meaning is not a limiting one.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Winding Filamentary Materials (AREA)
EP12183041.8A 2011-09-06 2012-09-05 Method and device for traversing of yarn on textile machines Not-in-force EP2567918B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ20110553A CZ303167B6 (cs) 2011-09-06 2011-09-06 Zpusob a zarízení k rozvádení príze na textilních strojích

Publications (3)

Publication Number Publication Date
EP2567918A2 EP2567918A2 (en) 2013-03-13
EP2567918A3 EP2567918A3 (en) 2013-11-13
EP2567918B1 true EP2567918B1 (en) 2018-01-31

Family

ID=46021929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12183041.8A Not-in-force EP2567918B1 (en) 2011-09-06 2012-09-05 Method and device for traversing of yarn on textile machines

Country Status (2)

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EP (1) EP2567918B1 (cs)
CZ (1) CZ303167B6 (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103586308A (zh) * 2013-11-13 2014-02-19 贵州钢绳股份有限公司 一种热处理收线防缠绕的装置
CZ20131023A3 (cs) * 2013-12-18 2014-08-27 Technická univerzita v Liberci Způsob rozvádění příze při jejím navíjení na cívku uloženou v navíjecím ústrojí pracovního místa textilního stroje a zařízení k jeho provádění
CN108217321A (zh) * 2018-03-05 2018-06-29 广东理工学院 弹射式导线咀总承及导线咀系统

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CZ232397A3 (cs) * 1997-07-21 1999-02-17 Václav Ing. Šafář Zařízení pro navíjení příze na bezvřetenových dopřádacích strojích
DE19881906D2 (de) * 1997-12-17 2000-11-30 Barmag Barmer Maschf Changiereinrichtung zum Verlegen eines Fadens
DE29909105U1 (de) * 1999-05-25 1999-07-22 Textilma Ag, Hergiswil Fadenfördervorrichtung
DE10133604A1 (de) * 2001-07-13 2003-02-06 Zinser Textilmaschinen Gmbh Verfahren und Vorrichtung zum Hin- und Herbewegen von Luntenführern
CN2591002Y (zh) * 2002-12-04 2003-12-10 陆峻峰 槽筒式络筒机断纱自停及定长装置
DE10332399A1 (de) * 2003-07-17 2005-02-03 Saurer Gmbh & Co. Kg Energiespeicher für einen Fingerfadenführer einer Kreuzspulen herstellenden Textilmaschine
CZ20033278A3 (cs) * 2003-12-02 2005-02-16 Jindřich Strmiska Způsob navíjení kuželového křížem soukaného návinu cívky zejména na bezvřetenovém dopřádacím stroji nebo skacím stroji a zařízení k provádění tohoto způsobu
CZ300588B6 (cs) * 2006-05-22 2009-06-24 Technická univerzita v Liberci Zpusob rozvádení príze pri navíjení príze na cívku a zarízení k provádení tohoto zpusobu
DE102006053135A1 (de) * 2006-11-11 2008-05-15 Oerlikon Textile Gmbh & Co. Kg Fadenchangiervorrichtung für eine Kreuzspulen herstellende Textilmaschine
CZ302884B6 (cs) * 2007-03-22 2012-01-04 Rieter Cz S.R.O. Zarízení k rozvádení príze na textilních strojích
DE102008000601A1 (de) * 2007-03-22 2008-09-25 Rieter Cz A.S. Garnchangiereinrichtung auf den Textilmaschinen

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
EP2567918A2 (en) 2013-03-13
EP2567918A3 (en) 2013-11-13
CZ2011553A3 (cs) 2012-05-09
CZ303167B6 (cs) 2012-05-09

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