EP0965394B1 - Procédé de commande de traction d'une machine d'étirage et machine d'étirage - Google Patents

Procédé de commande de traction d'une machine d'étirage et machine d'étirage Download PDF

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Publication number
EP0965394B1
EP0965394B1 EP98106352A EP98106352A EP0965394B1 EP 0965394 B1 EP0965394 B1 EP 0965394B1 EP 98106352 A EP98106352 A EP 98106352A EP 98106352 A EP98106352 A EP 98106352A EP 0965394 B1 EP0965394 B1 EP 0965394B1
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EP
European Patent Office
Prior art keywords
value
comparison value
speed
torque comparison
process according
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
EP98106352A
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German (de)
English (en)
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EP0965394A1 (fr
Inventor
Rainer Vockentanz
Ludwig Meggle
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.)
Maschinenfabrik Niehoff GmbH and Co KG
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Maschinenfabrik Niehoff GmbH and Co KG
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Publication date
Priority to DE59801770T priority Critical patent/DE59801770D1/de
Application filed by Maschinenfabrik Niehoff GmbH and Co KG filed Critical Maschinenfabrik Niehoff GmbH and Co KG
Priority to ES98106352T priority patent/ES2163822T3/es
Priority to EP98106352A priority patent/EP0965394B1/fr
Priority to PT98106352T priority patent/PT965394E/pt
Priority to US09/285,359 priority patent/US6116068A/en
Priority to JP11098170A priority patent/JP2000033413A/ja
Priority to BR9901598-6A priority patent/BR9901598A/pt
Publication of EP0965394A1 publication Critical patent/EP0965394A1/fr
Application granted granted Critical
Publication of EP0965394B1 publication Critical patent/EP0965394B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
    • B21C1/12—Regulating or controlling speed of drawing drums, e.g. to influence tension; Drives; Stop or relief mechanisms

Definitions

  • the present invention relates to a method for drive control a drawing machine or device and a device for pulling metallic extrudates.
  • Drawing machines or devices for drawing extrudates have several drawing disks over which the continuous material, for example the wire in at least one, preferred several loops and is reduced its cross section through arranged between the drawing disks Drawing stones is pulled through.
  • the drives of the pulling disks are non-slip Wire drawing machines brakes provided to turn back of the drawing disks after switching off the drawing machine to prevent.
  • the present invention is therefore based on the object a method for slip-free drive control a Wet drawing machine without additional devices, such as dancers etc. with which all settings from the machine with their own regulation and the optimal operating condition can be adjusted.
  • the method especially for pulling wires and Profiles made of copper, copper alloys and other special materials, which are usually pulled wet are suitable whereby an improvement in the quality of the end product is achieved shall be.
  • the present invention is based on the object a device for pulling strand material of all Art, in particular also of copper, copper alloys and to create other special materials, which in slip-free Operation operated at a particularly high speed can be and which has a simple structure whereby neither touch devices, dancers or force transducers brakes are still needed.
  • the total torques on the drawing disks are dependent on a number of parameters, such as. B. Forming degree, friction between wire and drawing die, drawing agent properties, drawing die polishing and mechanical and hydraulic power loss dependent.
  • the total torques thus consist of the useful torques and the friction torques.
  • the speeds adjust the drawing disks always the process or drawing operation on. Every change on the drawing dies is like this corrected that the disk rotation speed always is identical to the wire speed.
  • the regulation of the method according to the invention is based on essential also that actual values of the torques with Reference values are compared. These reference values will be advantageously when starting the machine, which in Slip operation takes place, determined and stored. This can already after the first turns of the drawing disks take place, which is detected over the entire device Torque model to each other is saved as a machine model becomes. This machine model then serves as a reference value for slip-free operation. This ensures that the machine model remains unchanged, for what if necessary, a separate control loop is provided.
  • the frictional torque of each drawing disc is dependent on of speed and automatically detected. This investigation the frictional torque occurs once in an operation without Wire and that from the motor at different speed levels between minimum and maximum speed recorded moment is recorded and saved. A So-called “friction torque characteristic" is by interpolation between the individual measured values automatically from the drive calculated so that a value for the friction torque for each speed is present.
  • the present invention has a number of significant advantages compared to the prior art.
  • the device can be local Changes to a specific pulling disc that speed can be corrected and cross-system changes, that do not require speed control, differentiate.
  • the device or the method recognizes e.g. B. any change in deformation force due to changes in the size or quality of the incoming Wire.
  • the device learns to Then independently pull the changed measurement data and submit of the new material.
  • the flexibility can be increased significantly because by the control according to the invention, for example Skip drawing stages through simple self-regulating Adjusting the correct speed ratio of the successive Draw stages are carried out. This also leads to a significantly higher availability of the device, because in Repairs to a drawing stage do not affect the entire machine must be stopped.
  • the smooth operation according to the inventive method is achieved in an excellent manner in that the predetermined Value of slip in stationary operation of the Drawing machine is negative. This means that the corresponding In any case, the pulling disc does not move faster turns as the wire running around them, causing wear is significantly reduced.
  • the method according to the invention is outstandingly suitable Way of operating a wet drawing machine, being due the intended control different operating states from operation with slip to non-slip Operation are possible.
  • Electric motors are advantageously used as drives, and everybody starts when starting the device Drive fully energized. This happens for example in chronological order from the first to the last drawing disc, after which the device starts up.
  • the energization process takes place in a very short time, so that ensures is that the last pull washer first begins to turn and the preceding ones accordingly the scheme according to the invention also begin to rotate.
  • the energization of the motors is advantageous controlled in such a way that the material or extrudate when stopped the machine is relaxed. With that, no brakes or other clamping devices required.
  • the invention is based provided that the predetermined slip value at least for all drawing disks, the speed of which depends on the comparison value is regulated, is the same.
  • the negative slip value at least -0.1%. With this Value ensures that between the pulling washer and Wire no slip occurs and stable regulation of the slip-free operation is made possible.
  • the first drive in the pulling direction is particularly advantageous exempt from the regulation. This in turn leads to a stabilization of the operation because of possible fluctuations e.g. B. due to a changed diameter or changed Strength of the inlet material is therefore not taken into account stay.
  • the moment the first drive changes the second drive is also determined with regard to the load balancing scheme, as is done by the Torque difference processing takes place, switched off. The change continues, due to a different Break-in resistance from the first drive to the second and via the slave drives, the control pulls the Conclusion that the changes are material, and the Speeds therefore do not need to be corrected. In order to However, it is also ensured that material changes when Welding without influencing the control of the pulling device are.
  • the method according to the invention achieves that the device is self-learning, whereby a Self-optimization takes place within predetermined limits and thus an adaptation to each new inlet material takes place.
  • the first torque comparison value is formed from the difference between two torques of adjacent drawing disks.
  • the device according to the invention is first described below described for drawing extrudate and then the Operation of the device or the inventive Procedure described.
  • Figure 1 is a device 1 for pulling wire in Side view shown.
  • the device 1 has three modules constructed drawing machine sections 3, which in Drawing direction of a wire 5 are built one behind the other.
  • the advantage of the modular sections 3 of the On the one hand, device 1 is both easier to transport of the individual sections 3 as well as the possibility fewer or more than three sections for an inventive To provide device 1.
  • Each module-like section 3 has four drawing disks 7 on, between which dies 9 are arranged. On one respective drawing die 9 is still a guide roller 11 arranged.
  • the drawing discs 7 are, as shown in Figure 1, in Turned clockwise as indicated by the arrows.
  • the wire 5 is an insertion device 13 in the first Drawing die 14 added. After that, the wire is around the first Drawing disc 7 correspondingly wrapped around once or several times and passed through the other drawing die 9.
  • Discharge device or station 15 At the end of the module-like sections 3 there is one Discharge device or station 15 in which a pulling disc 17 is provided as the last disc.
  • the device 1 shown is a Wet drawing machine, the modular sections 3 corresponding are encapsulated to seal the injected from the outside Absorb coolant and lubricant.
  • the puller disk 17 is separate because it runs dry arranged.
  • the puller disk 17 is driven by a motor 19, the connection between the motor 19 and the extractor shaft the puller 17 by means of a belt drive 21 takes place.
  • FIG. 2 is a top view to the device 1 according to the invention from FIG. 1 shows.
  • each drawing disk 7 has one own drive or drive device 25 , each drive device 25 having a pulling disk 7 drives directly.
  • the drive device 25 comprises one Electric motor and possibly an additional transmission gear.
  • Each drive device 25 and also the drive device 19 of the puller plate 17 has a connecting line 27 on which the signals detected by the drive device transmitted to the control device 23. Furthermore is for each drive device 25 or the motor 19 a connecting line 29 provided by the control device 23 for the drive device in question Transmits signals to this.
  • control device 23 the entire control and Regulation of the device 1 according to the invention, in Figure 3, the flow diagram of a control device element shown between two adjacent drawing disks is. The method according to the invention is also illustrated in FIG described.
  • FIG. 3 is a block diagram 31 of a first embodiment the control device 23, which control device modules are shown 33, the number of the number the drawing discs 7 corresponds.
  • Control module 33 shown for the control between the last pulling disk 7 and the pulling disk 17 are provided is.
  • the torque of the puller disk 17, designated Md17, is supplied to an adder 37 via the data line 35.
  • the engine torque is transmitted via a data line 39 Md7 of the drawing disk 7 is also fed to the adder 37 and in this adder 37 from the value of Md17 deducted.
  • the resultant first torque difference value .DELTA.M 1 is fed to a second adder 43 according to 41 (since it is a digital drive that only works by means of software, physical data lines no longer exist from this point).
  • a stored reference value ⁇ M L present in a memory 45 is compared with the value ⁇ M 1 in the adder 43. This results in a second torque difference value ⁇ M 2 .
  • This is passed on appropriately filtered via a dead-range element 47 and, according to 49, meets a further addition element 51.
  • the value ⁇ M 2 is compared with at least one further value, and then passed on via 53 as the drive setpoint AS.
  • the drive setpoint AS is then given to a master frequency LF via further elements, which will be described later, and passed on to the drive A7 of the drawing disk 7.
  • the value AS essentially depends on two influencing variables from.
  • a value S is stored which corresponds to the predetermined one Corresponds to the slip value after the start-up phase.
  • This Value S becomes the adder according to 57 and a switch 59 51 fed.
  • block 61 is a time-dependent Slip function curve SFK deposited and a corresponding Value becomes according to 63 and via switch 59 the adder 51, as shown in Figure 3, the Switch 59 just the connection between block 61 and adder 51 ago. The device is thus in the Start-up operation.
  • the signal AS output from the adder 51 is in an integrator 65 processed.
  • the activation of the Integrator member 65 only occurs when the switch 59 in the right position, not shown in FIG. 3 57 where it is connected to block 55 according to FIG is.
  • the signal output from the integrator element 65 is in accordance with 67 passed to a multiplier 69.
  • the multiplier 69 is the incoming value AS with the master frequency value LF (over 71) multiplied and another Adder 73 supplied. In this adder which results from multiplying the value AS by the value LF resulting value added to the corresponding LF value.
  • the value calculated in the adder 73 is tapped (according to 75) and via a multiplier block 77 with the predetermined Speed ratio value (speed increase due to Cross-section reduction and gear ratio) multiplied and then output to the drive A7 of the drawing disk 7.
  • the new conductance LF1 output by the adder 73 will be available again to the neighboring control loop posed.
  • the value Md17 tapped on the data line 35 and over a data line 81 is fed to a switch 83.
  • the Switch 83 serves to interrupt the data flow of the Torque value Md17 to the next front reference value.
  • the value of the readjustment is displayed in block 85, whereby the possibility of limiting the readjustment is provided can be.
  • FIG. 3 The method according to the invention is illustrated in FIG. 3 described below. In particular, this is how it works from the start of the start-up and the start of the regulation specified until the pulling device is fully stationary.
  • the switch 59 When starting the pulling device, the switch 59 is like shown in Figure 3 set. Due to the curve SFK in Block 61 is started at after all drawing disks have been started a large slip, for example of the order of magnitude started from 50%, but according to the curve SFK quickly is shut down.
  • the detected torque difference values ⁇ M 1 are stored in the memory 45 as reference values ⁇ M L.
  • the dead zone element 47 which contains a threshold function. Only when the second torque difference value ⁇ M 2 exceeds or falls below a predetermined positive or negative threshold value is the value passed on via 49.
  • the integration element 65 also serves to stabilize the control loop and is only switched when switch 59 activated to connect to block 55.
  • control device will continue both the actual data extension between two neighboring ones Drawing disks 7, as well as the exact final diameter of the continuous material or wire of the drawing machine.
  • This is particularly advantageous Disadvantage avoided that a larger diameter is made is because the last drawing die has a corresponding wear was subject.
  • This exact determination of the final diameter the drawn wire can thus be substantial Saving costs, as only the ordered preset is regularly ordered Diameter is paid and for larger diameters and same length of wire on the spool of excess material at the expense of the wire puller.
  • FIG. 4 shows a preferred alternative embodiment the control device shown.
  • the main difference of the control device module 34 shown there is in the upper area of Fig. 4.
  • the rest are same parts or components with the same reference numbers Mistake.
  • the torque value Md17 is tapped from the data line 35 and fed to a quotient block 36.
  • the quotient block 36 is supplied with the torque value Md7 via a data line 38.
  • the signals are then processed in the quotient block 36 as follows: Md17x100% / Md7.
  • the present invention thus provides both a method for the drive control of a drawing machine as well Device for pulling continuous material, in particular Wire created with the wire of all kinds in particular also copper wires, wires made of copper alloys or special materials can be edited. Doing so compared to previous slip-free wire drawing processes reached higher wire drawing speed, and because of the achievable exact operating conditions through the slip-free Pull achieved a blatant product improvement. This is expressed not only in the material consistency but also also in the corresponding surface quality, whereby for the puller additionally the advantage of an exact diameter determination of the finished wire, and thus unpaid larger diameters can be avoided.
  • the method according to the invention is particularly advantageous an automatic one carried out by the device itself regulated slip-free mode of operation ensured, the intervention of an operator is unnecessary makes.
  • To set the machine are only the respective ones Enter drawing die parameters, after which, based on the perfect control and automatic tracking of the Drives the pulling device operated completely automatically can be. Elaborate additional devices, such as dancers, tracer rollers, brakes, etc. are eliminated, which much less effort is required.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)

Claims (25)

  1. Procédé de commande de traction pour le fonctionnement sans glissement d'une machine d'étirage multiple et/ou d'un dispositif d'étirage (1), qui présente une multiplicité de disques d'étirage (7, 17) pour l'étirage d'un produit extrudé, en particulier d'un fil (5), dont chacun est entraínable par un entraínement associé (25, 19) qui peut être commandé séparément, et des filières (9), qui servent à réduire la section transversale et ainsi à allonger le matériau étiré, pouvant être prévues entre les disques d'étirage, des paramètres donnés, tels que couples, vitesses de rotation et grandeurs correctives, étant reçues et/ou enregistrées sur chaque entraínement, caractérisé par les phases suivantes :
    a) détermination automatique des couples utiles requis pour l'opération de déformation aux niveaux d'étirage individuels, à chaque opération de démarrage et à une faible vitesse et constante en mode glissement, une valeur comparative des couples de référence (ΔML) étant formée à partir des couples utiles de respectivement deux disques d'étirage adjacents,
    b) enregistrement des couples utiles aux niveaux d'étirage en régime de production sans glissement et formation d'une comparaison de respectivement deux disques d'étirage adjacents pour la formation de respectivement une première valeur comparative de couples (ΔM1),
    c) comparaison de la première valeur comparative de couples enregistrée (ΔM1) avec la valeur comparative des couples de référence prédéfinie (ΔML), et
    d) en présence d'écarts entre la première valeur comparative de couples actuelle (ΔM1) et la valeur comparative de couples de référence (ΔML), superposition de la régulation de vitesse de rotation des entraínements, de sorte que l'entraínement respectif le plus lent modifie la vitesse de rotation du disque d'étirage correspondant, jusqu'à ce que l'écart entre les valeurs comparatives de couples se réduise essentiellement à 0.
  2. Procédé suivant la revendication 1, caractérisé en ce que la valeur prédéfinie du glissement est négative en régime stationnaire de la machine d'étirage.
  3. Procédé suivant l'une des revendications 1 et 2,
    caractérisé en ce que la régulation de la vitesse de rotation des disques d'étirage est assurée à partir de la vitesse de rotation (valeur de consigne directrice) du dernier disque d'étirage (disque d'enlèvement 17), et la vitesse de rotation du disque d'étirage respectif dépend de la valeur de consigne directrice.
  4. Procédé suivant l'une des revendications 1 à 3,
    caractérisé en ce qu'il est mis en oeuvre sur une machine d'étirage par voie humide.
  5. Procédé suivant l'une des revendications 1 à 4,
    caractérisé en ce que les entraínements des disques d'étirage (7, 17) sont des moteurs électriques (25, 19), et en ce que chaque entraínement est totalement alimenté en courant au démarrage de la machine d'étirage et/ou du dispositif d'étirage (1).
  6. Procédé suivant la revendication 5, caractérisé en ce que l'alimentation en courant des moteurs (25, 19) est commandée de sorte que le produit extrudé (fil 5) est mis hors tension à l'arrêt de la machine d'étirage.
  7. Procédé suivant l'une des revendications 1 à 6,
    caractérisé en ce qu'un net glissement, qui est rapidement fortement réduit (bloc 61), est prévu au démarrage, une faible vitesse linéaire du produit extrudé étant prévue, qui se situe de préférence au-dessous de 5% de la vitesse maximale.
  8. Procédé suivant l'une des revendications 1 à 7,
    caractérisé en ce que le démarrage de la machine est assuré sans glissement de la faible vitesse linéaire jusqu'à la vitesse de fonctionnement.
  9. Procédé suivant l'une des revendications 1 à 8,
    caractérisé en ce que la valeur de glissement prédéfinie est égale au moins pour tous les disques d'étirage, dont la vitesse de rotation est réglée en fonction de la valeur comparative.
  10. Procédé suivant l'une des revendications 1 à 9,
    caractérisé en ce que la valeur de glissement négative (S) est de préférence au moins égale à -0,1%.
  11. Procédé suivant l'une des revendications 1 à 10,
    caractérisé en ce que le premier entraínement dans le sens d'étirage est exclu de la commande.
  12. Procédé suivant l'une des revendications 1 à 11,
    caractérisé en ce que les caractéristiques de friction, telles que frottement mécanique (moteur, transmission, joints) et frottement hydraulique (pertes par barbotage en fonctionnement par voie humide) sont déterminées automatiquement en marche à vide et sont mémorisées comme valeurs correctives.
  13. Procédé suivant l'une des revendications 1 à 12,
    caractérisé en ce que la première valeur comparative des couples (ΔM1) est formée à partir de la différence de deux couples de disques d'étirage adjacents.
  14. Procédé suivant l'une des revendications 1 à 12,
    caractérisé en ce que la première valeur comparative des couples (ΔM1) est formée à partir du quotient de deux couples de disques d'étirage adjacents.
  15. Procédé suivant la revendication 14, caractérisé en ce que la valeur de quotient est normalisée à une valeur de pourcentage ((Mi x 100% / Mi-1) - 100%).
  16. Dispositif (1) d'étirage de produit extrudé métallique (5), en particulier de fil rond, de fil profilé etc..., avec
    une multiplicité de disques d'étirage (7, 17), entraínés individuellement au moyen de dispositifs d'entraínement (25, 19), et autour desquels le produit extrudé (5) est guidé en cours de service,
    une multiplicité de filières (9), disposées entre les disques d'étirage (7) et servant à réduire la section transversale et à allonger en conséquence le produit extrudé,
    caractérisé en ce que le dispositif de commande (23)
    a) détermine automatiquement les couples utiles requis pour l'opération de déformation aux niveaux d'étirage individuels, à chaque opération de démarrage et à une faible vitesse et constante en mode glissement, en formant une valeur comparative des couples de référence (ΔML) à partir des couples utiles de respectivement deux disques d'étirage adjacents,
    b) enregistre les couples utiles aux niveaux d'étirage en régime de production sans glissement et compare les couples utiles de respectivement deux disques d'étirage adjacents pour la formation de respectivement une première valeur comparative de couples (ΔM1),
    c) compare la première valeur comparative de couples enregistrée (ΔM1) avec la valeur comparative de couples de référence prédéfinie (ΔML), et
    d) en présence d'écarts entre la première valeur comparative de couples actuelle (ΔM1) et la valeur comparative de couples de référence (ΔML), superpose la régulation de vitesse de rotation des entraínements, de sorte que l'entraínement respectif le plus lent modifie la vitesse de rotation du disque d'étirage correspondant, jusqu'à ce que l'écart entre les valeurs comparatives de couples se réduise essentiellement à 0.
  17. Dispositif suivant la revendication 16, caractérisé en ce qu'il est réalisé sous forme de machine d'étirage par voie humide.
  18. Dispositif suivant l'une des revendications 16 et 17, caractérisé en ce que les entraínements des disques d'étirage présentent des moteurs électriques (25, 19), et en ce qu'une alimentation totale en courant de chaque entraínement est assurée pour le démarrage du dispositif.
  19. Dispositif suivant l'une des revendications 16 à 18, caractérisé en ce qu'un net glissement, qui se réduit très fortement, règne entre le produit extrudé et le disque d'étirage au début du démarrage, une vitesse de démarrage régnant alors, de préférence inférieure à 5% de la vitesse maximale.
  20. Dispositif suivant l'une des revendications 16 à 19, caractérisé en ce qu'il réalise la poussée à la vitesse de fonctionnement maximale en régime sans glissement.
  21. Dispositif suivant l'une des revendications 16 à 20, caractérisé en ce que la valeur de glissement prédéfinie est égale pour tous les disques d'étirage, dont la vitesse de rotation est réglée en fonction de la valeur comparative.
  22. Dispositif suivant l'une des revendications 16 à 21, caractérisé en ce que la valeur de glissement négative (S) est de préférence égale à au moins -0,1%.
  23. Dispositif suivant l'une des revendications 16 à 22, caractérisé en ce que le premier entraínement dans le sens d'étirage n'est soumis à aucune commande.
  24. Dispositif suivant l'une des revendications 16 à 23, caractérisé en ce que le dispositif de commande (23) enregistre en marche à vide dans le dispositif (1) les caractéristiques de friction, telles que frottement mécanique (moteur, transmission, joints) et frottement hydraulique (pertes par barbotage en fonctionnement par voie humide).
  25. Dispositif suivant l'une des revendications 16 à 24,
    caractérisé en ce que le dispositif de commande (23) détermine de nouveau de façon autonome les valeurs comparatives des couples, et adapte automatiquement les entraínements au matériau d'entrée modifié.
EP98106352A 1998-04-07 1998-04-07 Procédé de commande de traction d'une machine d'étirage et machine d'étirage Expired - Lifetime EP0965394B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES98106352T ES2163822T3 (es) 1998-04-07 1998-04-07 Procedimiento para la regulacion del accionamiento de una trefiladora y dispositivo de trefilado.
EP98106352A EP0965394B1 (fr) 1998-04-07 1998-04-07 Procédé de commande de traction d'une machine d'étirage et machine d'étirage
PT98106352T PT965394E (pt) 1998-04-07 1998-04-07 Processo para o controlo do accionamento de uma maquina estiradora e dispositivo estirador
DE59801770T DE59801770D1 (de) 1998-04-07 1998-04-07 Verfahren zur Antriebsregelung einer Ziehmaschine und Ziehvorrichtung
US09/285,359 US6116068A (en) 1998-04-07 1999-04-02 Method of regulating the drive of a drawing machine, and drawing device
JP11098170A JP2000033413A (ja) 1998-04-07 1999-04-05 延伸装置の駆動調整方法ならびに延伸装置
BR9901598-6A BR9901598A (pt) 1998-04-07 1999-04-07 Método para regulagem do acionamento de uma máquina de estirar, e dispositivo para estirar.

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Application Number Priority Date Filing Date Title
EP98106352A EP0965394B1 (fr) 1998-04-07 1998-04-07 Procédé de commande de traction d'une machine d'étirage et machine d'étirage

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Publication Number Publication Date
EP0965394A1 EP0965394A1 (fr) 1999-12-22
EP0965394B1 true EP0965394B1 (fr) 2001-10-17

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US (1) US6116068A (fr)
EP (1) EP0965394B1 (fr)
JP (1) JP2000033413A (fr)
BR (1) BR9901598A (fr)
DE (1) DE59801770D1 (fr)
ES (1) ES2163822T3 (fr)
PT (1) PT965394E (fr)

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JP2000033413A (ja) 2000-02-02
BR9901598A (pt) 2000-02-22
ES2163822T3 (es) 2002-02-01
DE59801770D1 (de) 2001-11-22

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