EP1220959B1 - Procede d'utilisation d'un ourdissoir conique et ourdissoir conique - Google Patents

Procede d'utilisation d'un ourdissoir conique et ourdissoir conique Download PDF

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Publication number
EP1220959B1
EP1220959B1 EP00963847A EP00963847A EP1220959B1 EP 1220959 B1 EP1220959 B1 EP 1220959B1 EP 00963847 A EP00963847 A EP 00963847A EP 00963847 A EP00963847 A EP 00963847A EP 1220959 B1 EP1220959 B1 EP 1220959B1
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EP
European Patent Office
Prior art keywords
warping
drum
warp
growth
revolution
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.)
Expired - Lifetime
Application number
EP00963847A
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German (de)
English (en)
Other versions
EP1220959A2 (fr
Inventor
Manfred Bollen
Horst Ulbrich
Hans-Peter Zeller
Stefan Häne
Riccardo Marchi
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.)
Karl Mayer Textilmaschinen AG
Original Assignee
Benninger AG
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Publication date
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Publication of EP1220959A2 publication Critical patent/EP1220959A2/fr
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Publication of EP1220959B1 publication Critical patent/EP1220959B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H3/00—Warping machines
    • D02H3/02—Sectional warpers

Definitions

  • the invention relates to a method for operating a cone warping machine according to the preamble of claim 1.
  • a group of threads is withdrawn from a creel in a predetermined Kettfadenrapport and wound as warp or section on the warping drum with constant winding tension.
  • the warping drum has a cylindrical portion and a frusto-conical portion, each Schrbandwickel is wound for stability reasons in the inclination of the truncated cone angle.
  • the warp strip is guided for this purpose via a co-rotating guide roller, which is arranged on a sharpening slide. This carriage performs during the winding process a movement axially and radially to the longitudinal axis of the warping drum.
  • a genus comparable comparable cone warping and a Schwarzr vide are for example in the CH A 679 935 described.
  • the winding diameter diameter increase must be determined and Accordingly, the sharpening feed can be specified axially and radially.
  • the use of precision probes requires that the sharpening process be stopped each time a measuring operation is performed.
  • a pressing roller which acts as a measuring means for the winding, leads in particular at low nominal yarn thicknesses to considerable Measurement errors.
  • Such measurement errors can also occur when using laser measuring devices, for example, because it is concluded because of the hairiness of a yarn on a false twine or because the color of the yarn or the optical environment of the establishment affect the measurement result. Since the laser device is mounted on the sharpening carriage, the mentioned optical measuring errors accumulate with those which are caused by the sharpening carriage movement or by unavoidable manufacturing tolerances.
  • the diameter of the warping drum and the guide roller, and the cone ratio at the frustoconical portion are constant and plant-specific variables, can be surprisingly simple way to determine the effective diameter of the roll after each warping drum rotation with maximum precision and without interrupting the winding process continuously. Since the winding diameter increase over the ratio of the revolutions of the guide roller and the warping drum known at any time is, the axial feed of the warping carriage can be controlled so that the winding follows regardless of any changes in diameter exactly the cone angle.
  • the ratio of the revolutions of the warping drum and the guide roller is determined with one of the warping drum associated first encoder and one of the guide roller associated second encoder in a programmable computer.
  • a correction factor for the length measured values is determined from the ratio of the known basic circumference of the warping drum and the winding length measured via the deflecting roller.
  • the computer serves as a comparison device and as a memory for the winding lengths and the calculated winding diameter.
  • the initial feed for the axial and radial warping slide displacement is determined when the axial and radial warping feed is subsequently controlled for each revolution on account of the current measured values until the winding diameter increase for each revolution is constant and then when the Schrschlittenvorschub the Schwarzittenvorschub is kept constant until the completion of the Schwarzrbandwickels.
  • the leveling roller leads to a more uniform winding structure, with different disturbances such. different thread volume, change in humidity and so on are compensated. So far, it has been customary to manually specify the effective distance of the leveling roller with a material-dependent compression factor. It is particularly advantageous if the effective distance of the leveling roller is also controlled or regulated as a function of the calculated winding diameter increase with the goal of a compact and cylindrical winding.
  • the winding structure can run differently in this starting phase. In connection with the leveling roller, it is expedient if this is only switched on when the measurement phase is completed.
  • the initial position (effective distance) of the leveling roller from the Kompressiosn the previous windings (behavior of the winding structure) is calculated in advance by a correlation.
  • the behavior of the winding diameter increase (winding structure) can be re-detected after the connection of the leveling roller to correlate a new value for the Schwarzrschlittenvorschub and the effective distance of the leveling roller.
  • the rotation-related data of the winding diameter are stored for the first warp wound on the warper drum and if the revolution-related winding diameter of the follower belts due to the stored data to those of the first warp band, possibly by changing the effective distance of the leveling roller, especially at can be adapted to larger material-specific volume changes.
  • the winding diameter can be kept constant over the entire warping width are without a change in the Schrbandzuges is required. In this case, the sharpening feed, which was detected at the first warp band, copied at the following Shurb skilledn.
  • the invention also relates to a cone warping machine, which operates according to the inventive method and which is characterized by the features in claim 13. Further constructive embodiments emerge from the claims 14 to 16.
  • the cone warper has a warping drum 3 with a cylindrical portion 31 and a shoulder formed as a frusto-conical portion 30, which adjoins the cylindrical portion at its smallest diameter.
  • the warping drum is from a only in FIG. 4 symbolically shown electric motor 32 is rotated at a predetermined winding speed about the longitudinal axis aa.
  • a warp strip M consisting of several threads is wound on the warping drum as warp wraps w, x, y, and z, the wraps being deposited in the cone angle of the frusto-conical section.
  • the individual threads of a warp band are subtracted from a creel C shown schematically by individual thread bobbins, wherein the threads are acted upon by means of thread brakes FF with a braking force.
  • the warp strip is guided over a deflection roller 1, which is freely rotatably mounted.
  • the deflection roller is thus caused to rotate as a result of the belt friction caused by the warp band, the speed obviously being dependent on the winding speed, which is usually kept constant over the entire warp chain.
  • the surface of the guide roller consists for example of hard anodized, high-strength aluminum.
  • the deflecting roller 1 is mounted on a sharpening slide 11 and indeed rotatable about a longitudinal axis b-b, which extends axially to the longitudinal axis a-a of the warping drum.
  • the warping carriage in turn is axially and radially displaceable to the longitudinal axis a-a.
  • the axial displacement takes place with a longitudinal motor 12 via a threaded spindle 120 and a spindle nut 121.
  • the radial displacement takes place via a transverse motor 13 and a threaded spindle 130.
  • the warping drum 3 is provided with a first encoder 4, which is able to deliver at least one pulse at each revolution of the warping drum.
  • the guide roller 1 is connected to a second encoder 2, which can also generate rotation-dependent pulses, for example, a predetermined number of pulses of 20,000 for each full revolution of the guide roller.
  • the first and second transducers, as well as the already mentioned drive motor 32 for the warping drum are in operative connection with a programmable computer UE ( FIG. 4 ).
  • a leveling roller 14 is arranged, which is pressed against the warping drum 3 and against the building up winding.
  • the leveling roller 14 is acted upon by a pressing device 15, wherein the effective distance of the leveling roller exerts a corresponding contact force on the Schwarzrwickel.
  • the effective distance of the leveling roller 14 can be controlled by various means. It may, for example, be a pressure medium cylinder or an electromagnetic linear drive. Since the leveling roller 14 must follow the axial displacement of the winding structure, it is associated with the sharpening carriage 11.
  • FIG. 3 are more constructive details of the guide roller 1 can be seen.
  • This is mounted on a shaft 10 which is mounted in 5 'end bearings. These are preferably rolling bearings.
  • the end bearing 5 acts on at least one force sensor 6, by means of which the warp tension acting on the deflection roller 1 can be determined.
  • the force sensor 6 is also connected to the programmable computer UE, where the determined voltage actual value of the strip tension is comparable to a predetermined tension setpoint of the strip tension.
  • the electromechanical thread brakes FF are actuated, that is to say, each time according to the sign of the deviation, either burdened or relieved.
  • a magnetic brake 7 or similar means arranged, which is controllable via the programmable computer UE and which is activated for example in a sudden deceleration of the winding speed at the warping drum 3 or at a stop.
  • the second encoder 2 is fixedly arranged on the sharpening carriage 11 and connected to the shaft 10 preferably via a coupling 8.
  • the encoder 2 is non-contact with the shaft 10 in operative connection, for example via an optical incremental encoder or the like.
  • FIG. 1 finally the geometrical relations of a warp band to the warping drum are visible.
  • the frusto-conical portion 30 has a shoulder height A and a length B relative to the cylindrical portion 31.
  • the two masses determine the cone ratio and the cone angle ⁇ , respectively.
  • the individual windings w, x, y, and z are stored in sequence at the same angle on the warping drum 3.
  • the layer thickness U of a single warp strip M determines which Mass S must be offset from the underlying layer to comply with the cone angle ⁇ .
  • the cone mass A to B as the winding layer mass U to S.
  • the second encoder 2 determines the number of pulses in the interval between two successive pulses of the first Encoder 4 are issued.
  • a correction factor d f for the length measured values is determined from the ratio of the known basic circumference of the warping drum and the jack length measured via the deflecting roller.
  • layer thickness U of the Schwarzene apparently corresponds to half the difference between the inner diameter and the outer diameter of a layer. Since the lengths of the successive layers are known from the above-mentioned calculation, the difference in length between two layers can be deduced by dividing by the number Pi on the diameter difference.
  • each coil it is possible in the construction of each coil to move the sharpening carriage 11 by a dimension S at each revolution of the warping drum 3, which corresponds to the effective diameter increase of the coil taking into account the given cone ratio. Therefore, each wound on the warper drum winding in its entirety has a conical Side surface whose angle inclination corresponds exactly to the cone angle ⁇ .
  • the warping carriage 11 is retracted by the transverse motor 13 radially to the longitudinal axis a-a by a measure that the layer thickness U corresponds to each revolution of the warping drum.
  • FIGS. 5a to 5c and in FIG. 6 It is shown that the winding diameter increase at least in the starting phase not linear behavior. This depends on the yarn quality or on the compressibility of the material.
  • FIG. 5a shows a first Schrbandwickel W, which abuts the cone portion 30 of the warping drum.
  • Reference numeral 18 represents a total of five hypothetical layers S1 to S5 of non-compressible material. The winding diameter increase would be approximately in accordance with the curve 16 in FIG. 6 linear behavior, z. B if the material were steel wire.
  • the hatched material with the reference numeral 19 according to FIG. 5b symbolizes a compressible textile material.
  • three layers of this material are shown. It can be seen that the real diameter Dr in the third layer S3 is already smaller than the hypothetical diameter Dh. The yarn layers are forced into each other, with the behavior evidently changing with increasing distance from the hard cylindrical section 31.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
  • Cable Accessories (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Forging (AREA)
  • Gas Separation By Absorption (AREA)
  • Water Treatment By Sorption (AREA)
  • Separation Of Particles Using Liquids (AREA)

Claims (16)

  1. Procédé pour faire fonctionner un ourdissoir conique comprenant un tambour d'ourdissoir (3), qui présente une portion cylindrique (31) et une portion de forme tronconique (30), une bande d'ourdissoir (M) étant déviée par le biais d'un rouleau déflecteur (1) et étant enroulée sur le tambour d'ourdissoir (3), et le rouleau déflecteur disposé sur un chariot d'ourdissoir (11) étant déplacé avec un moteur (12) parallèlement à l'axe longitudinal (a-a) du tambour d'ourdissoir, la longueur d'enroulement de la bande d'ourdissoir étant détectée en fonction des rotations et l'augmentation du diamètre d'enroulement étant calculée à partir de celle-ci au niveau de la couche d'enroulement actuelle, et le déplacement du chariot d'ourdissoir parallèlement à l'axe longitudinal s'effectuant en fonction de l'augmentation de diamètre d'enroulement ainsi détectée en tenant compte du rapport de conicité connu au niveau de la portion tronconique,
    caractérisé en ce que
    - le chariot d'ourdissoir (11) est déplacé avec un autre moteur (13) radialement par rapport à l'axe longitudinal (a-a) du tambour d'ourdissoir,
    - et en ce que le déplacement du chariot d'ourdissoir s'effectue en tenant compte en outre du comportement de tassement détecté, dépendant de la capacité de compression du matériau.
  2. Procédé selon la revendication 1, caractérisé en ce que le rapport des rotations du tambour d'ourdissoir (3) et du rouleau déflecteur (1) est déterminé et l'on calcule à partir de celui-ci l'augmentation du diamètre d'enroulement sur le tambour d'ourdissoir par le biais de la longueur de la bande d'ourdissoir enroulée pour chaque rotation du tambour d'ourdissoir.
  3. Procédé selon la revendication 1, caractérisé en ce que lors de la première rotation du tambour d'ourdissoir, on détermine, à partir du rapport de la périphérie de base connue du tambour d'ourdissoir et de la longueur d'enroulement mesurée sur le rouleau déflecteur, un facteur de correction pour les valeurs de mesure de longueur.
  4. Procédé selon la revendication 1, caractérisé en ce que le rapport des rotations du tambour d'ourdissoir et du rouleau déflecteur est déterminé avec un premier capteur de mesure (4) associé au tambour d'ourdissoir et avec un deuxième capteur de mesure (2) associé au rouleau déflecteur et l'on calcule à partir de celui-ci, dans un ordinateur programmable l'avance du chariot d'ourdissoir.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'après la première rotation du tambour d'ourdissoir pour une bande d'ourdissoir, on détermine l'avance initiale pour le déplacement axial et radial du chariot d'ourdissoir, en ce qu'on régule ensuite l'avance axiale et radiale du chariot d'ourdissoir sur la base des valeurs de mesure courantes pour chaque rotation pendant une phase de démarrage, jusqu'à ce que l'augmentation du diamètre d'enroulement pour chaque rotation soit constante, et que l'on maintient ensuite constante l'avance du chariot d'ourdissoir jusqu'à l'achèvement de l'enroulement de la bande d'ourdissoir ou jusqu'à ce que l'on constate un écart de l'augmentation du diamètre d'enroulement.
  6. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'après la première rotation du tambour d'ourdissoir pour une bande d'ourdissoir, on détermine l'avance initiale pour le déplacement axial du chariot d'ourdissoir et en ce qu'on régule ensuite l'avance axiale du chariot d'ourdissoir sur la base des valeurs de mesure courantes pour chaque rotation jusqu'à l'achèvement de l'enroulement de la bande d'ourdissoir.
  7. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'au moins dans une phase de démarrage, on détecte le comportement de l'augmentation du diamètre d'enroulement et en ce qu' à partir de celui-ci on calcule au préalable, par corrélation, le comportement pour des rotations futures du tambour d'ourdissoir, et que l'on commande en conséquence l'avance du chariot d'ourdissoir.
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la bande d'ourdissoir est pressée contre le tambour d'ourdissoir (3) avec un rouleau d'égalisation (14), et en ce que la distance d'action est commandée ou régulée en fonction de l'augmentation du diamètre d'enroulement déterminée en fonction de, ou indépendamment de l'avance radiale du chariot d'ourdissoir.
  9. Procédé selon la revendication 8, caractérisé en ce que le rouleau d'égalisation est commuté seulement après une phase de mesure avec quelques rotations du tambour d'ourdissoir, la position de départ du rouleau d'égalisation étant calculée au préalable par une corrélation de l'augmentation du diamètre d'enroulement.
  10. Procédé selon la revendication 9, caractérisé en ce que le comportement de l'augmentation du diamètre d'enroulement après la commutation du rouleau d'égalisation est détecté à nouveau et l'on effectue à partir de celui-ci une corrélation d'une nouvelle valeur pour l'avance du chariot d'ourdissoir et pour la distance d'action du rouleau d'égalisation.
  11. Procédé selon l'une quelconque des revendications 8 à 10, caractérisé en ce que les données relatives aux rotations, de l'augmentation du diamètre d'enroulement, pour la première bande d'ourdissoir enroulée sur le tambour d'ourdissoir sont mémorisées et en ce que l'augmentation du diamètre d'enroulement des bandes suivantes est adaptée à celle de la première bande en copiant les données mémorisées avec le rouleau d'égalisation.
  12. Procédé selon l'une quelconque des revendications 8 à 11, caractérisé en ce que pour différents comportements de charge de la structure d'enroulement, par adaptation de la distance d'action du rouleau d'égalisation sans modification de l'avance du chariot d'ourdissoir dans les bandes d'ourdissoir en maintenant constante la traction de la bande d'ourdissoir, on maintient l'enroulement cylindrique sur toute la largeur de l'ourdissoir.
  13. Ourdissoir conique comprenant un tambour d'ourdissoir (3) qui présente une portion cylindrique (31) et une portion tronconique (30) et qui peut être entraîné en rotation autour de son axe longitudinal (a-a), et comprenant aussi un rouleau déflecteur (1) pour dévier une bande d'ourdissoir avant l'enroulement sur le tambour d'ourdissoir, le rouleau déflecteur étant disposé sur un chariot d'ourdissoir (11) et pouvant être déplacé sur celui-ci avec un moteur respectif (12, 13) parallèlement et radialement à l'axe longitudinal (a-a) du tambour d'ourdissoir, et
    - des moyens étant prévus pour détecter, en fonction des rotations, la longueur d'enroulement de la bande d'ourdissoir,
    - lesquels sont en liaison fonctionnelle avec un ordinateur programmable, avec lequel on peut calculer l'augmentation du diamètre d'enroulement,
    - les moteurs (12, 13) pouvant être commandés pour l'avance axiale et radiale du chariot d'ourdissoir en fonction de l'augmentation du diamètre d'enroulement calculée et du rapport de conicité mémorisé de la portion tronconique (30).
  14. Ourdissoir conique selon la revendication 13, caractérisé en ce que les moyens pour détecter la longueur d'enroulement de la bande d'ourdissoir en fonction des rotations présentent un premier capteur de mesure (4) sur le tambour d'ourdissoir (3) et un deuxième capteur de mesure (2) sur le rouleau déflecteur (1), les deux capteurs de mesure permettant de produire un signal dépendant des rotations.
  15. Ourdissoir conique selon la revendication 14, caractérisé en ce que la connexion entre le deuxième capteur de mesure (2) et le rouleau déflecteur s'effectue par le biais d'un arbre (10) et en ce qu'on dispose sur l'arbre entre le deuxième capteur de mesure et le rouleau déflecteur au moins un capteur de force (6) pour déterminer la force de traction de la bande d'ourdissoir.
  16. Ourdissoir conique selon l'une quelconque des revendications 13 à 15, caractérisé en ce que l'on dispose dans la région d'enroulement du tambour d'ourdissoir un rouleau d'égalisation (14) qui peut être pressé au moyen d'un dispositif de pressage ajustable (15) contre le tambour d'ourdissoir (3) et en ce que le dispositif de pressage peut être commandé par l'ordinateur (UE), la distance d'action pouvant être ajustée en fonction de l'augmentation du diamètre d'enroulement déterminée.
EP00963847A 1999-10-13 2000-10-09 Procede d'utilisation d'un ourdissoir conique et ourdissoir conique Expired - Lifetime EP1220959B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITFI990206 1999-10-13
IT1999FI000206A IT1307802B1 (it) 1999-10-13 1999-10-13 Metodo ed apparecchiatura per la formazione dell'ordito su orditoisezionali.
PCT/CH2000/000548 WO2001027367A2 (fr) 1999-10-13 2000-10-09 Procede d'utilisation d'un ourdissoir conique et ourdissoir conique

Publications (2)

Publication Number Publication Date
EP1220959A2 EP1220959A2 (fr) 2002-07-10
EP1220959B1 true EP1220959B1 (fr) 2009-01-07

Family

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EP00963847A Expired - Lifetime EP1220959B1 (fr) 1999-10-13 2000-10-09 Procede d'utilisation d'un ourdissoir conique et ourdissoir conique

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EP (1) EP1220959B1 (fr)
AT (1) ATE420229T1 (fr)
DE (1) DE50015520D1 (fr)
ES (1) ES2319612T3 (fr)
IT (1) IT1307802B1 (fr)
WO (1) WO2001027367A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005033524A1 (de) * 2005-06-22 2006-12-28 H.K.O. Isolier- Und Textiltechnik Gmbh Bandscheranlage und Verfahren zur Kettbaumherstellung
EP2169098A1 (fr) 2008-09-25 2010-03-31 Benninger AG Procédé destiné au fonctionnement d'une machine de coupe conique et machine de coupe conique
EP3178978A1 (fr) * 2015-12-09 2017-06-14 Karl Mayer Textilmaschinenfabrik GmbH Ourdissoirs et procédé de production d'une chaîne

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3301195A1 (de) * 1983-01-15 1984-07-26 W. Schlafhorst & Co, 4050 Mönchengladbach Verfahren und vorrichtung zum schaeren eines schaerbandes auf einer konusschaermaschine
DE3301196A1 (de) * 1983-01-15 1984-07-26 W. Schlafhorst & Co, 4050 Mönchengladbach Konusschaermaschine
CH669409A5 (fr) * 1986-02-27 1989-03-15 Benninger Ag Maschf
CH675598A5 (fr) * 1986-04-02 1990-10-15 Benninger Ag Maschf
CH679935A5 (fr) * 1989-10-09 1992-05-15 Benninger Ag Maschf

Also Published As

Publication number Publication date
EP1220959A2 (fr) 2002-07-10
IT1307802B1 (it) 2001-11-19
WO2001027367A3 (fr) 2001-10-18
WO2001027367A2 (fr) 2001-04-19
ITFI990206A0 (it) 1999-10-13
ATE420229T1 (de) 2009-01-15
DE50015520D1 (de) 2009-02-26
ES2319612T3 (es) 2009-05-11
ITFI990206A1 (it) 2001-04-13

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