EP1880964A2 - Hochfrequenz Fadenführungsgerät zur Herstellung von Spulen mit moduliertem Durchlauf - Google Patents

Hochfrequenz Fadenführungsgerät zur Herstellung von Spulen mit moduliertem Durchlauf Download PDF

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Publication number
EP1880964A2
EP1880964A2 EP07111842A EP07111842A EP1880964A2 EP 1880964 A2 EP1880964 A2 EP 1880964A2 EP 07111842 A EP07111842 A EP 07111842A EP 07111842 A EP07111842 A EP 07111842A EP 1880964 A2 EP1880964 A2 EP 1880964A2
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EP
European Patent Office
Prior art keywords
thread
guide
collection
guide device
yarns
Prior art date
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Granted
Application number
EP07111842A
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English (en)
French (fr)
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EP1880964A3 (de
EP1880964B1 (de
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
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Savio Macchine Tessili SpA
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Application filed by Savio Macchine Tessili SpA filed Critical Savio Macchine Tessili SpA
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Publication of EP1880964A3 publication Critical patent/EP1880964A3/de
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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.
  • 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.
  • Said 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 only shown in figures 1A and 1B.
  • Figures 1A and 1B respectively illustrate in a front view and left-side cross-section, the idea of the most general solution of the present invention for activating a thread-guide in an alternating high-frequency movement.
  • FIGS 2A, 2B and 2C illustrate alternative embodiments of the scheme of figure 1, with particular reference to flexible thread-guide activating elements alternative to the toothed belt of figure 1.
  • Figures 3A and 3B illustrate an alternative embodiment to the scheme of figure 1, with the insertion of elastic elements for the energy accumulation to be restored in the inversion points of the movement.
  • Figure 3C illustrates an alternative embodiment of the scheme of figures 2A and 2B, with the insertion of elastic elements for the energy accumulation to be restored in the inversion points of the movement.
  • Figures 4 to 8 illustrate embodiments of the invention with a repulsing effect at the two ends of the thread-guide run.
  • Figure 9 shows for illustrative purposes, the trend of the magnetic field produced by a solenoid with respect to a point external to this, situated on its axis at a certain distance.
  • Figure 10 shows for illustrative purposes, the trend of the repulsion force F of the magnetic pole of a solenoid with respect to a point external to this, situated on its axis at a certain distance.
  • 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 idea of the solution can also be embodied by activating only one of the pulleys 20a, 20b with two motors.
  • 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.
  • Figure 2A shows an alternative embodiment in which the flexible element 19 consists of a closed cord, on which four balls 22 are positioned which, as they are inserted in suitable seats situated on the pulleys 20a and 20b, ensure that the elastic element 19 does not slide onto the pulleys, favouring their movement.
  • the closing of the elastic element 19 is effected by means of a closing clamp 23.
  • Figure 2B shows an embodiment in which the flexible element 19 consists of an open cord, at whose ends there are two balls 22, inserted in suitable seats situated on the driving pulleys 20a and 20b.
  • Two pulleys 24a, 24b are also coaxially housed on the driving pulleys 20a and 20b, on which the ends of a second open flexible element 29, for example a cord or belt, are hooked, by means of the balls 22.
  • Figure 2C shows an embodiment of the invention in which the driving pulleys 20a, 20b are positioned on a leaf-spring 32, which tends to curve opening up the interaxis and moving the driving pulleys 20a and 20b away from each other.
  • This expedient is necessary when a cord is used as flexible element 19, which with time tends to elongate, losing the necessary tensioning. Any elongation of the flexible element 19 does in fact automatically cause the pulleys 20a and 20b to move away from each other, re-establishing the necessary tension.
  • Figures 3A and 3B represent a further alternative 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 3B, 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 cord 19 and thread-guide 15.
  • figures 4 to 8 illustrate embodiment variants of the technical solution according to the invention with the insertion of repulsing elements of the run of the thread-guide 15 to provide the necessary torque for at least restarting the thread-guide 15 with a higher acceleration than that of each single motor with the respective pulleys.
  • Figures 4A, 4B and 4C illustrate a repulsing system which uses pairs of permanent magnets situated on both the moveable devices characterized by an alternating movement and on the fixed structure, causing the polarities having the same sign to move towards each other in correspondence with the run-end, which however have the tendency to repel each other, favouring braking and movement inversion.
  • Figures 4A, 4B and 4C show the configuration of the thread-guide device 18 with the thread-guide 15 in a central half-run position, in the left-end and right-end of its traversing run, respectively.
  • Permanent moveable magnets 30a, 30b are situated in the two driving pulleys 20a, 20b, for example their spokes, which follow their alternating angular movement, oscillating between two angular positions L and R, which move integrally with the thread-guide 15, inverting their angular movement when said thread-guide 15 is situated at the left or right end of its traversing run.
  • Two homologous fixed magnets 31a, 31b are assembled on the fixed structure of the machine, in a position corresponding to the two ends L and R so that, in correspondence with the inversion movement, one of the pairs of bodies 30a, 30b and 31a, 31b, having polarities of the same sign, N or S, are facing each other and therefore repelling each other with a force inversely proportional to the square of their distance.
  • a significant repulsing action between one of the two driving pulleys 20a, 20b and its corresponding fixed magnetic body 31a, 31b is thus exerted near the inversion point, which favours the braking and movement inversion, alternatingly in correspondence with the two run-ends of the thread-guide 15.
  • Figures 5A, 5B and 5C illustrate a further perfected embodiment of the thread-guide activation device according to the scheme of figure 4.
  • figures 5 also respectively show the configuration of the thread-guide device 18 with the thread-guide 15 in a central half-run position as in figure 5A, in the left-end of its traversing run as in figure 5B and in the right-end as in figure 5C.
  • permanent magnets 30a, 30b are situated on the two driving pulleys 20a, 20b, which oscillate between two angular positions L and R, in correspondence with the thread-guide 15 completely to the left and completely to the right, respectively.
  • a pair of fixed magnetic bodies 41a, 41b for example permanent magnets, are assembled on the fixed structure of the motor chassis, in a position corresponding to the two ends L and R so that, in correspondence with the movement inversion points, both of the moveable magnetic bodies 30a, 30b are facing the corresponding fixed magnetic body 41a, 41b, having polarities of the same sign, N or S, and therefore repelling each other with a force inversely proportional to the square of their distance.
  • both of the pairs of magnetic bodies 30a, 30b and 41a, 41b face each other to act as a repellent, no longer alternatingly but jointly, therefore exerting a double action with respect to the embodiment of the technical solution of figures 4.
  • the variation in the traversing run can be effected by coherently providing the motors 21a, 21b with a piloting command for limited run or inversion point values.
  • Figures 6A and 6B show a further embodiment of the invention, respectively illustrating the configuration of the thread-guide device 18 with the thread-guide 15 in a central half-run position, indicated with a continuous line, whereas the end positions of the thread-guide to the left and right of its traversing run, are indicated with a dashed line.
  • a permanent moveable magnet 30 is situated on the body of the thread-guide 15, which integrally follows the alternating movement of the thread-guide 15 as far as the inversion positions to the left and right.
  • two fixed permanent magnets 31a, 31b are assembled on the fixed structure of the machine, in a position corresponding to the two ends of the traversing run so that, in correspondence with the movement inversion, the magnetic body 30 is facing one of the fixed magnetic bodies, having polarities of the same sign, N or S, and therefore repelling each other with a force inversely proportional to the square of their distance.
  • the fixed magnetic bodies on the other hand, consist of bobbins 42a, 42b stimulated by two feeding lines 43a, 43b. This type of embodiment allows the repulsion force exerted in correspondence with the run-end, to be regulated with the feeding of the bobbin 42a, 42b, the bobbin 42a, 42b acting as a solenoid.
  • a solenoid is a cylindrically-shaped bobbin consisting of a series of circular coils very close to each other and produced with a single wire of conductor material.
  • a magnetic field is created, both inside and outside the solenoid, directly proportional to the total number of coils, at the current intensity and with magnetic permeability and inversely proportional to the length of the solenoid.
  • the magnetic field produced by a solenoid can be schematized as if it were obtained by a continuous distribution of coils, through which the same current passes.
  • the trend of the magnetic field B with respect to x is shown in figure 9 (in which the distance x is indicated on the axis of the abscissa and the value of the magnetic field B is indicated on the ordinate).
  • F(x,i) indicates the force of the solenoid in relation to the current i and distance x
  • ⁇ indicates the magnetic dipole moment (calculated as a ratio between the intensity of the magnetic field of the magnet on the thread-guide and the volume of the magnet on the thread-guide)
  • g indicates the gravity acceleration (9.8 m/s 2 )
  • B o (x,i) indicates the magnetic field on the axis of the solenoid.
  • the trend of the repulsion force F with respect to x is shown in figure 10 (in which the distance x is indicated on the axis of the abscissa and the value of the repulsion force F is indicated on the ordinate).
  • the repulsion force is considerably high, close to the outer coil, and drops significantly after a few millimetres.
  • the repulsion force of the solenoid can be varied, within certain values.
  • the graph of figure 10 shows two force trends with two different current values. Analogously, in order to vary the discarding, i.e. reduce the inversion space, it is sufficient to stimulate the bobbin or solenoid with a different current.
  • the variation can be effected by modifying the positions of the fixed magnetic bodies 31a, 31b or 42a, 42b, as shown in figure 7.
  • the axial position of the two fixed magnetic bodies 31a, 31b is regulated by assembling these bodies on a fixed guide in an axial direction and moving them axially with a worm screw 35a, 35b moved in rotation in a clockwise/anticlockwise direction with a motorization 36, to move the two magnetic bodies 31a, 31b towards or away from each other, respectively.
  • the scheme of figures 6A and 6B is modified by inserting, instead of fixed magnetic bodies, mechanical shock absorber elements 45a, 45b in a position corresponding to the two ends of the traversing run of the thread-guide 15 so that, in correspondence with the inversion of the movement, the thread-guide 15 discharges its kinetic energy by coming into contact with a repelling element 45a, 45b, which in turn accumulates it and returns it after the movement inversion.
  • This repelling element can be a gas, hydraulic, spring decelerator, positioned at the two ends of the traversing run.
  • This pair of repelling elements 45a, 45b can come into contact directly with the thread-guide 15 or with elements fixed to the flexible element 19 on the two parts of the thread-guide 15, so that the stress exerted by the repellents does not damage the thread-guide itself or its connection to the flexible element.
  • 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.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Adornments (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Chemical Vapour Deposition (AREA)
EP07111842A 2006-07-12 2007-07-05 Hochfrequenz Fadenführungsgerät zur Herstellung von Spulen mit moduliertem Durchlauf Not-in-force EP1880964B1 (de)

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 true EP1880964A2 (de) 2008-01-23
EP1880964A3 EP1880964A3 (de) 2008-02-06
EP1880964B1 EP1880964B1 (de) 2010-11-24

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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)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102009022061A1 (de) 2009-05-20 2010-11-25 Oerlikon Textile Gmbh & Co. Kg Changiereinrichtung

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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

Citations (7)

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Publication number Priority date Publication date Assignee Title
EP0311784A1 (de) 1987-09-16 1989-04-19 Barmag Ag Spulapparat
EP0311827A2 (de) 1987-10-12 1989-04-19 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Verfahren und Vorrichtung zum Führen, Halten und Trennen eines Fadens beim Spulenwechsel
EP0453622A1 (de) 1990-04-23 1991-10-30 Ssm Schärer Schweiter Mettler Ag Verfahren und Vorrichtung zum Aufwickeln eines Fadens auf eine Spule
EP0838422A1 (de) 1996-10-28 1998-04-29 Ssm Schärer Schweiter Mettler Ag Vorrichtung zum Aufwickeln eines Fadens auf eine Spule
EP1159217A1 (de) 1998-12-18 2001-12-05 W. SCHLAFHORST AG & CO. Fadenführer zum traversierenden zuführen eines fadens zu einer rotierend angetriebenen auflaufspule
EP1209114A1 (de) 2000-11-16 2002-05-29 Schärer Schweiter Mettler AG Fadenverlegung für eine Vorrichtung zum Aufwickeln eines Fadens auf eine Spule
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ATE489320T1 (de) 2010-12-15
EP1880964A3 (de) 2008-02-06
CN101104487A (zh) 2008-01-16
EP1880964B1 (de) 2010-11-24
CN101104487B (zh) 2012-08-29
US20080011891A1 (en) 2008-01-17
DE602007010695D1 (de) 2011-01-05
ITMI20061354A1 (it) 2008-01-13

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