EP1880964B1 - Hochfrequenz Fadenführungsgerät zur Herstellung von Spulen mit moduliertem Durchlauf - Google Patents
Hochfrequenz Fadenführungsgerät zur Herstellung von Spulen mit moduliertem Durchlauf Download PDFInfo
- 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
Links
Images
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)
- Einzelnes Fadenführungsgerät (18) zum Sammeln von Garnen auf einer Spule (10), bei dem das Garn (F) auf der Oberfläche der Spule von einem Fadenführer (15) verteilt wird, der sich mit einer Hin- und Herbewegung parallel zur Achse der Stützrolle (12) der Spule (10) bewegt, und wobei das Fadenführungsgerät (18) mit einer Hin- und Herbewegung durch ein flexibles Element (19) angetrieben wird, an dem der Fadenführer (15) befestigt ist, wobei das flexible Element (19) zwischen zwei Antriebsscheiben (20a, 20b) bewegt wird, die sich durch die Aktivierung eines von einer Steuereinheit gesteuerten Elektromotors mit einer alternierenden Bewegung im und entgegen dem Uhrzeigersinn bewegen, wobei die flexiblen Elemente (19) einen geschlossenen Kreis bilden, wobei die Scheiben (20a, 20b) durch mindestens zwei Elektromotoren (21a, 21b) in Gang gesetzt werden, wobei jede Scheibe (20a, 20b) durch ihren eigenen Elektromotor (21a, 21b) in Gang gesetzt wird, wobei die Motoren (21a, 21b) durch mindestens einen Positionsdetektor überwacht und durch die besagte Steuereinheit gesteuert werden, welche die Steuerung der Motoren (21a, 21b) koordiniert, um die gewünschte Durchlaufbewegung zu erzeugen, dadurch gekennzeichnet, dass elastische Elemente für die Speicherung von an den Bewegungsumkehrpunkten zurückzugebender elastischer Energie zwischen das unbewegliche Gehäuse jedes Motors (21a, 21b) und die entsprechenden beweglichen Teile des Motors eingesetzt sind, und dass die besagten elastischen Elemente Torsionsfedern (25a, 25b) sind, von denen jede mit einem ihrer Enden (26a, 26b) in die Antriebswelle (28a, 28b) und mit dem anderen Ende (27a, 27b) in das unbewegliche Gehäuse des Motors (21a, 21b) eingespannt ist.
- Fadenführungsgerät zum Sammeln von Garnen auf einer Spule nach Anspruch 1, dadurch gekennzeichnet, dass die Motoren (21a, 21b) Synchronmotoren vom Typ bürstenloser Motor oder Schrittmotor sind.
- Fadenführungsgerät zum Sammeln von Garnen auf einer Spule nach Anspruch 1, dadurch gekennzeichnet, dass die Scheiben (20a, 20b) Zahnriemenscheiben sind und das flexible Element (19) aus einem geschlossenen Zahnriemen besteht.
- Fadenführungsgerät zum Sammeln von Garnen auf einer Spule nach Anspruch 1, dadurch gekennzeichnet, dass das flexible Element (19) aus einem Seil besteht, das um die zwei Scheiben (20a, 20b) gewunden ist, an denen es mit Einspannungen physisch befestigt ist.
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 (de) | 2008-01-23 |
EP1880964A3 EP1880964A3 (de) | 2008-02-06 |
EP1880964B1 true EP1880964B1 (de) | 2010-11-24 |
Family
ID=38694830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07111842A Not-in-force EP1880964B1 (de) | 2006-07-12 | 2007-07-05 | Hochfrequenz Fadenführungsgerät zur Herstellung von Spulen mit moduliertem Durchlauf |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080011891A1 (de) |
EP (1) | EP1880964B1 (de) |
CN (1) | CN101104487B (de) |
AT (1) | ATE489320T1 (de) |
DE (1) | DE602007010695D1 (de) |
IT (1) | ITMI20061354A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009022061A1 (de) | 2009-05-20 | 2010-11-25 | Oerlikon Textile Gmbh & Co. Kg | Changiereinrichtung |
CZ201380A3 (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 |
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 |
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 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE3886468D1 (de) * | 1987-08-04 | 1994-02-03 | Schubert & Salzer Maschinen | Vorrichtung zur Fadenverlegung auf einer Kreuzspule. |
EP0311784B1 (de) * | 1987-09-16 | 1992-03-11 | Barmag Ag | 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 |
WO1999031000A1 (de) * | 1997-12-17 | 1999-06-24 | Barmag Ag | Changiereinrichtung zum verlegen eines fadens |
EP1004532A1 (de) * | 1998-11-23 | 2000-05-31 | Schärer Schweiter Mettler AG | Energiespeicher für eine Vorrichtung zum Aufwickeln eines Fadens |
DE19960024A1 (de) | 1998-12-18 | 2000-06-21 | Schlafhorst & Co W | Fadenführer zum traversierenden Zuführen eines Fadens zu einer rotierend angetriebenen Auflaufspule |
DE19858548A1 (de) * | 1998-12-18 | 2000-06-21 | Schlafhorst & Co W | Fadenführer zum traversierenden Zuführen eines Fadens zu einer rotierend angetriebenen Auflaufspule |
DE29904699U1 (de) * | 1999-03-15 | 2000-09-28 | Münnekehoff, Gerd, Dipl.-Ing., 42857 Remscheid | Changiereinrichtung |
DE19963232A1 (de) * | 1999-12-27 | 2001-07-05 | Volkmann Gmbh | Vorrichtung zum Aufwickeln eines Fadens auf eine Spule |
TR200402351T4 (tr) | 2000-11-16 | 2004-12-21 | Sch�Rer Schweiter Mettler Ag | İpliğin bobine sarılması için iplik katı yerleştirme düzeneği. |
DE10332399A1 (de) | 2003-07-17 | 2005-02-03 | Saurer Gmbh & Co. Kg | Energiespeicher für einen Fingerfadenführer einer Kreuzspulen herstellenden Textilmaschine |
-
2006
- 2006-07-12 IT IT001354A patent/ITMI20061354A1/it unknown
-
2007
- 2007-07-05 EP EP07111842A patent/EP1880964B1/de not_active Not-in-force
- 2007-07-05 AT AT07111842T patent/ATE489320T1/de not_active IP Right Cessation
- 2007-07-05 DE DE602007010695T patent/DE602007010695D1/de active Active
- 2007-07-11 US US11/827,286 patent/US20080011891A1/en not_active Abandoned
- 2007-07-12 CN CN2007101287865A patent/CN101104487B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN101104487A (zh) | 2008-01-16 |
ATE489320T1 (de) | 2010-12-15 |
US20080011891A1 (en) | 2008-01-17 |
CN101104487B (zh) | 2012-08-29 |
EP1880964A3 (de) | 2008-02-06 |
EP1880964A2 (de) | 2008-01-23 |
DE602007010695D1 (de) | 2011-01-05 |
ITMI20061354A1 (it) | 2008-01-13 |
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