EP1880964B1 - Dispositif de guide-fil haute fréquence pour la production de bobines avec déplacement modulé - Google Patents

Dispositif de guide-fil haute fréquence pour la production de bobines avec déplacement modulé Download PDF

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Publication number
EP1880964B1
EP1880964B1 EP07111842A EP07111842A EP1880964B1 EP 1880964 B1 EP1880964 B1 EP 1880964B1 EP 07111842 A EP07111842 A EP 07111842A EP 07111842 A EP07111842 A EP 07111842A EP 1880964 B1 EP1880964 B1 EP 1880964B1
Authority
EP
European Patent Office
Prior art keywords
thread
guide
bobbin
motors
movement
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
EP07111842A
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German (de)
English (en)
Other versions
EP1880964A3 (fr
EP1880964A2 (fr
Inventor
Armando D'agnolo
Luciano Bertoli
Mauro Gobbato
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.)
Savio Macchine Tessili SpA
Original Assignee
Savio Macchine Tessili SpA
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
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Application filed by Savio Macchine Tessili SpA filed Critical Savio Macchine Tessili SpA
Publication of EP1880964A2 publication Critical patent/EP1880964A2/fr
Publication of EP1880964A3 publication Critical patent/EP1880964A3/fr
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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
    • B65H54/2821—Traversing devices driven by belts or chains
    • 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
    • B65H54/32—Traversing devices; Package-shaping arrangements with thread guides reciprocating or oscillating with variable 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
    • 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
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • B65H2555/13—Actuating means linear magnetic, e.g. induction motors
    • 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

  • the present invention relates to the collection of the thread produced or processed by textile machines for winding onto bobbins.
  • thread collection onto a bobbin is effected on tubes supported by a bobbin-holder arm and resting on a rotating roll, by pulling the thread to be wound onto it.
  • the rotating roll can be activated by a motor, transmitting the rotation movement to the tube onto which the thread is wound, or, in an alternative solution, the roll is idle and is entrained by the bobbin in formation which in turn is driven by a motor.
  • the function of the roll is to ensure the pressure necessary for forming a sufficiently compact bobbin and with a correct shape.
  • the thread is spirally wound onto the rotating bobbin as the collecting unit is equipped with a thread-guide device which distributes the thread onto the outer surface of the bobbin, with an axial back-and-forth movement, according to a pre-determined cross angle.
  • the bobbins can have a conical-truncated or cylindrical shape with substantially flat bases, except in some particular cases in which the bobbins are shaped with a marked flaring in the terminal parts.
  • the most widely-used device for distributing the yarn onto the surface of the bobbin with an axial back-and-forth, i.e. traversing, movement consists in a spiral groove situated on the surface of the rotating roll which allows the yarn to effect an axial excursion of a prefixed length, for a preestablished number of revs of the roll itself and with a prefixed trend of the cross angle of the yarn being wound.
  • the thread winding and yarn distribution organs operate according to a fixed velocity ratio.
  • the thread distribution device on the bobbin must be produced with an autonomous thread-guide device which is independent of the movement of the winding organs.
  • the thread-distribution device of the yarn on the bobbin must therefore be moved by its own activation organ, with which the frequency of the back-and-forth movement, its run, the length of the spiral wound and the winding cross angle, etc. can be modulated each time and according to necessity.
  • Patent EP 311,827 describes an individual thread-guide system for a thread collection unit which envisages moving the thread-guide with a closed toothed transmission belt moved with a step-by-step motor controlled by a microprocessor in the traversing movement.
  • the control of the step-by-step motor with a microprocessor allows the desired winding to be effected, with respect to the cross angle, run and traversing frequency.
  • Patent EP 1,209,114 describes belt-tensioner devices for this type of individual thread-guide.
  • Patent Application DE 199 63 232 A1 describes a thread-guide attached to a reciprocating belt actuated by two motors driving two pulleys around which the belt is wound.
  • the thread-guide In the intermediate part of its back-and-forth run, the thread-guide is easily activated at the desired velocity, whether said velocity be constant, as in the case of cylindrical bobbins, or when said velocity is variable, as in the case of conical bobbins.
  • the inertia of the thread-guide complex makes it necessary to operate with a lower average speed, with respect to the intermediate excursion section.
  • the greater density at the ends of the bobbin can be reduced by alternating complete traversing runs with shortened traversing runs, or with fixed traversing runs, but with continuous staggering at the two ends.
  • Patent EP 311,784 envisages accumulating kinetic energy with mechanical activation systems of the thread-guide during the intermediate part of its run and transferring it to the thread-guide in the movement inversion phases.
  • Patent EP 453,622 describes a method and a thread-guide device - again activated with constraint to a flexible ring-closed element and driven by a motor piloted with an alternating movement by a control unit - which controls the position of the thread-guide and applies the step-by-step motor with an overcurrent close to its inversion points, to guarantee the braking and acceleration time values.
  • This document also envisages further increasing the power transmitted in the movement inversion phases with an elastic system which is engaged and disengaged during the thread-guide run.
  • Patent application EP 1,498,378 describes an analogous thread-guide with an oscillating finger with an energy accumulator having a repulsing effect obtained by positioning permanent magnets in correspondence with the run-end of the oscillating finger, which repel magnets having the same polarity.
  • Patent application EP 1,159,217 describes a thread-guide with an oscillating finger of the previous type, again activated by an electric motor piloted in an alternating clockwise/anticlockwise movement, in which a torsion screw is used as energy accumulator, in particular a propeller screw, or two springs, with opposing winding directions.
  • An objective of the present invention is to produce an individual distribution device of the yarn on the winding bobbin which overcomes the restrictions and drawbacks of the thread-guide devices available in the state of the art and allows extremely high accelerations of the thread-guide in correspondence with the inversion points and consequently to obtain the highest-quality bobbins.
  • the present invention therefore proposes a thread-guide device for the collection of yarns onto a bobbin, wherein the moving parts are not activated by a single motor which provides the necessary torque, but by at least two motors having smaller dimensions, arranged to as to assist each other in providing the same torque necessary for the moving parts, with an overall lower inertia.
  • the device is also equipped with elastic means which coadjuvate the motors supplying additional energy in correspondence with the inversion points of the movement.
  • the device according to the invention is defined, in its essential components, in the first claim, whereas its variants and preferred embodiments are specified and defined in the dependent claims.
  • the figures refer to an embodiment of the thread-guide device according to the invention, suitable for distributing yarn onto the winding bobbin in a yarn collection unit, of which the further fundamental components: yarn, bobbin, driving roll and mandrels of the bobbin-holder arm with respect to the actual thread-guide, are shown in figures 1A and 1B , with the insertion of elastic elements for the energy accumulation to be restored in the inversion points of the movement, whereas figure 1C shows, in the left-side cross section, the relationship between the thread-guide device according to the present invention and the winding station.
  • the bobbin 10 being wound is supported by the mandrels 11 of a bobbin-holder arm, for rotating around its axis due to the effect of the contact created by resting on its activation roll 12.
  • the yarn F comes from below diverted by the distance rod 14 and is wound onto the bobbin 10, distributed onto the surface of the bobbin by the thread-guide 15 which moves with a back-and-forth movement parallel to the axis of the roll 12 and along two guide-rods 16.
  • the thread-guide 15 is shown with a continuous line in its central position and with a dashed line in its end positions in which the traversing movement is inverted.
  • the thread-guide device 18 envisages that the back-and-forth movement be activated with a closed flexible element 19, which can have a toothed belt, as shown in the figures - or an equivalent known element, for example smooth belts, cords, chains and so forth - to which the thread-guide 15 is fixed with a fixing organ which runs along the guide-rods 16.
  • index "a” indicates the element on the left and the index "b” the element on the right, the right and left elements being symmetrical and specularly equal to each other.
  • the flexible element 19 is typically moved between two driving pulleys 20a, 20b activated in an alternating clockwise/anticlockwise movement according to the arrows, each with its own electric motor 21a, 21b, both of said motors being piloted by a control unit, not shown in the figure for the sake of simplicity, which coordinates the movement of the two motors 21a, 21b of the device 18, in a known way, to create the desired traversing movement.
  • These motors, driven to move with an alternating movement with a piloted angular excursion, are known in the art.
  • synchronous motors 21a, 21b are used, of the so-called brushless or step-by step type, coordinatingly piloted by a control unit of the yarn winding station.
  • the flexible element 19 is wound onto two driving pulleys 20a, 20b in a closed circuit and kept tense, with two parallel sections, one upper and the other lower.
  • the functioning of the device 18 is effected as follows. In its right-to-left movement, the movement of the thread-guide 15 is determined both by the pulling of the upper part of the flexible element 19 towards the left, exerted by the left driving pulley 20a activated in an anticlockwise direction with respect to the motor 21a, and also by the pulling of the lower part of the flexible element 19 towards the right, exerted by the right driving pulley 20b activated in an anticlockwise direction with respect to the motor 21b.
  • the synchronous motors 21a, 21b are controlled by means of position detectors, currently called encoders, which allow the control unit of the winding unit to reveal the angular position of the motor: on the basis of the indications of the encoder, the control unit controls and drives the two motors 21a, 21b with the relative activations, currently called inverters.
  • Figures 1A and 1B represent an embodiment, with a torsion spring with cylindrical winding and with a thread having a round section, applied on the rear side of each motor.
  • a torsion spring with cylindrical winding and with a thread having a round section applied on the rear side of each motor.
  • Completely similar and equally functional solutions are in any case possible, for example with springs with a thread having a rectangular section, and/or with spiral winding, and/or applied on the front side of the respective motor, said alternative forms being completely equivalent to that shown.
  • Torsion springs 25a, 25b are inserted between the driving pulley 20a, 20b and the fixed structure of the relative motor 21a, 21b, which, as illustrated in the left-side view of figure 1B , have one of the ends 26a, 26b constrained to the rear extension of the driving shaft 28a, 28b and the other end 27a, 27b constrained to the structure of the motor itself 21a, 21b.
  • the spring 25a untwists unloading its torsion and increasing the leftwards pull of the cord 19 and thus assisting the action of the motors, especially during the inversion of the movement.
  • the system is operating in an anticlockwise direction loading the spring 25b which increases its torsion and accumulates elastic energy which is released in the subsequent run from left to right of the flexible element 19 and thread-guide 15.
  • the use of separate motors for the two driving pulleys also allows the inertia of the parts moved by the motors to be subdivided, and at the same time to distribute the points in which the torque is supplied, subjecting the system as a whole to less stress.
  • the action of the elastic means which, when present, assist the motors providing their additional energy in correspondence with the movement inversion points, has the fundamental role of assisting the motors when these are subjected to most stress.
  • the device is consequently able to give the thread-guide greater acceleration, providing the further advantage of obtaining higher production rates.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Chemical Vapour Deposition (AREA)
  • Adornments (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)

Claims (4)

  1. Dispositif de guide-fil individuel (18) pour collecter des fils sur une bobine (10), dans lequel le fil (F) est distribué sur la surface de la bobine par un guide-fil (15) qui se déplace avec un mouvement d'aller et retour parallèle à l'axe du rouleau de support (12) de la bobine (10) et le dispositif de guide-fil (18) est entraîné avec un mouvement d'aller et retour au moyen d'un élément flexible (19), auquel est fixé le guide-fil (15), l'élément flexible (19) étant déplacé entre deux poulies motrices (20a, 20b) qui se déplacent avec un mouvement alternatif dans le sens horaire/antihoraire par l'activation d'un moteur électrique piloté par une unité de commande, les éléments flexibles (19) formant un circuit fermé, les poulies (20a, 20b) étant actionnées par au moins deux moteurs électriques (21a, 21b), chaque poulie (20a, 20b) étant actionnée chacune par son propre moteur électrique (21a, 21b), les moteurs (21a, 21b) étant commandés par au moins un détecteur de position et pilotés par ladite unité de commande, laquelle coordonne le pilotage desdits moteurs (21a, 21b) pour produire le mouvement transversal désiré, caractérisé en ce que des éléments électriques pour l'accumulation d'énergie élastique, destinée à être retournée dans les points d'inversion de mouvement, sont insérés entre la structure fixe de chaque moteur (21a, 21b) et les parties mobiles correspondantes du moteur lui-même, et en ce que lesdits éléments élastiques sont des ressors de torsion (25a, 25b), chacun desquels est sollicité à l'une de ses extrémités (26a, 26b) par l'arbre d'entraînement (28a, 28b) et à l'autre extrémité (27a, 27b) par la structure fixe du moteur lui-même (21a, 21b).
  2. Dispositif de guide-fil pour collecter des fils sur une bobine selon la revendication 1, caractérisé en ce que les moteurs (21a, 21b) sont des moteurs synchrones du type sans balai ou pas à pas.
  3. Dispositif de guide-fil pour collecter des fils sur une bobine selon la revendication 1, caractérisé en ce que les poulies (20a, 20b) sont des poulies dentées et l'élément flexible (19) consiste en une courroie dentée en boucle fermée.
  4. Dispositif de guide-fil pour collecter des fils sur une bobine selon la revendication 1, caractérisé en ce que l'élément flexible (19) consiste en une corde, qui est enroulée sur deux poulies (20a, 20b), auxquelles elle est fixée physiquement avec contraintes.
EP07111842A 2006-07-12 2007-07-05 Dispositif de guide-fil haute fréquence pour la production de bobines avec déplacement modulé Not-in-force EP1880964B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001354A ITMI20061354A1 (it) 2006-07-12 2006-07-12 Dispositivo guadafilo ad alta frequenza per la produzione di rocche a zettatura modulata

Publications (3)

Publication Number Publication Date
EP1880964A2 EP1880964A2 (fr) 2008-01-23
EP1880964A3 EP1880964A3 (fr) 2008-02-06
EP1880964B1 true EP1880964B1 (fr) 2010-11-24

Family

ID=38694830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07111842A Not-in-force EP1880964B1 (fr) 2006-07-12 2007-07-05 Dispositif de guide-fil haute fréquence pour la production de bobines avec déplacement modulé

Country Status (6)

Country Link
US (1) US20080011891A1 (fr)
EP (1) EP1880964B1 (fr)
CN (1) CN101104487B (fr)
AT (1) ATE489320T1 (fr)
DE (1) DE602007010695D1 (fr)
IT (1) ITMI20061354A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009022061A1 (de) 2009-05-20 2010-11-25 Oerlikon Textile Gmbh & Co. Kg Changiereinrichtung
CZ304677B6 (cs) * 2013-02-07 2014-08-27 Rieter Cz S.R.O. Způsob rozvádění navíjené příze a zařízení k jeho provádění
CN103290540A (zh) * 2013-06-18 2013-09-11 海宁市盛祥线业有限公司 一种包覆丝机上卷收筒的调节装置
CN104674395B (zh) * 2013-10-31 2018-12-28 舍弗勒技术股份两合公司 驱动传送带的驱动装置、传送装置、导纱器
CN104649076B (zh) * 2013-11-19 2019-06-07 舍弗勒技术股份两合公司 导纱器及纱线卷绕机
CZ304685B6 (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
CN105712126B (zh) * 2014-12-05 2019-09-10 舍弗勒技术股份两合公司 纺织机、自动绕线器及纱线引导机构
ITUB20155420A1 (it) * 2015-11-10 2017-05-10 Savio Macch Tessili Spa Dispositivo guidafilo di roccatrice e relativa roccatrice
CN108569591B (zh) * 2018-05-16 2023-07-21 安徽埃克森科技集团有限公司 一种可精确控制的电缆收卷装置

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US3940078A (en) * 1974-08-12 1976-02-24 Leesona Corporation Belt traverse and guide mechanism
US4595081A (en) * 1984-09-10 1986-06-17 Barber-Colman Company Reversible rotary actuator with spring return
EP0302461B1 (fr) * 1987-08-04 1993-12-22 Rieter Ingolstadt Spinnereimaschinenbau AG Dispositif de bobinage de fil pour former une bobine croisée
DE3869043D1 (de) * 1987-09-16 1992-04-16 Barmag Barmer Maschf Spulapparat.
DE3734478A1 (de) 1987-10-12 1989-04-27 Schubert & Salzer Maschinen Verfahren und vorrichtung zum fuehren, halten und trennen eines fadens beim spulenwechsel
DE59008484D1 (de) * 1990-04-23 1995-03-23 Ssm Ag Verfahren und Vorrichtung zum Aufwickeln eines Fadens auf eine Spule.
DE59609889D1 (de) 1996-10-28 2003-01-02 Ssm Ag Vorrichtung zum Aufwickeln eines Fadens auf eine Spule
DE19881906D2 (de) * 1997-12-17 2000-11-30 Barmag Barmer Maschf Changiereinrichtung zum Verlegen eines Fadens
EP1004532A1 (fr) * 1998-11-23 2000-05-31 Schärer Schweiter Mettler AG Accumulateur d'énergie pour un dispositif de bobinage d'un fil
DE19960024A1 (de) 1998-12-18 2000-06-21 Schlafhorst & Co W Fadenführer zum traversierenden Zuführen eines Fadens zu einer rotierend angetriebenen Auflaufspule
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DE29904699U1 (de) * 1999-03-15 2000-09-28 Muennekehoff Gerd Changiereinrichtung
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ATE276192T1 (de) 2000-11-16 2004-10-15 Ssm Ag Vorrichtung zur fadenverlegung beim aufwickeln eines fadens auf eine spule
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Also Published As

Publication number Publication date
EP1880964A3 (fr) 2008-02-06
ATE489320T1 (de) 2010-12-15
CN101104487A (zh) 2008-01-16
CN101104487B (zh) 2012-08-29
US20080011891A1 (en) 2008-01-17
EP1880964A2 (fr) 2008-01-23
ITMI20061354A1 (it) 2008-01-13
DE602007010695D1 (de) 2011-01-05

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