EP3552724B1 - Appareil d'avancement de fil doté d'un capteur permettant de déterminer la position de fil et procédé de fonctionnement d'un appareil d'avancement de fil - Google Patents

Appareil d'avancement de fil doté d'un capteur permettant de déterminer la position de fil et procédé de fonctionnement d'un appareil d'avancement de fil Download PDF

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Publication number
EP3552724B1
EP3552724B1 EP19168560.1A EP19168560A EP3552724B1 EP 3552724 B1 EP3552724 B1 EP 3552724B1 EP 19168560 A EP19168560 A EP 19168560A EP 3552724 B1 EP3552724 B1 EP 3552724B1
Authority
EP
European Patent Office
Prior art keywords
wire
guide element
speed
drawing machine
wire guide
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.)
Active
Application number
EP19168560.1A
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German (de)
English (en)
Other versions
EP3552724A1 (fr
Inventor
Christoph Wimmer
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.)
Jankowski & Co KG GmbH
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Jankowski & Co KG GmbH
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Publication date
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Publication of EP3552724A1 publication Critical patent/EP3552724A1/fr
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products 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

Definitions

  • a raw wire wound into a coil is usually used.
  • the cross-section of the raw wire has to be reduced to a target cross-section.
  • the cross section of the wire can have different geometric shapes and, for example, square, but is mostly round.
  • Wire drawing devices with which the cross section of a wire can be reduced in a deformable manner are known from the prior art. So the document discloses DE 10 2005 049 018 A1 a drawing disk of a wire drawing device and a method for reducing the cross section of a wire with a wire drawing device
  • U.S. 3,709,021 A which forms the basis for the preamble of claims 1 and 9, also shows a wire drawing device and a method of operating a wire drawing device.
  • the wire is usually fed directly from the wire drawing device to a downstream processing machine. It is important to adapt the processing speeds of the two machines to one another, i.e. to feed the wire out of the wire drawing device at the speed at which the wire is processed by the downstream processing machine.
  • the wire arch is guided from the wire drawing device via a pulley to the downstream processing machine.
  • the deflection roller is acted upon with a counterpressure and equipped with a position measuring system. If more wire is drawn in by the following processing machine than is provided by the wire drawing device, the mechanical tension of the wire between the wire drawing device and the following processing machine increases the pulley is shifted against the counter pressure, which is registered by the position measuring system.
  • the path measuring system then regulates the speed with which the wire drawing device provides wire via a frequency controller and increases the speed of the drawing disk of the wire drawing device.
  • the tension of the wire on the deflection roller is reduced and this moves following the counterpressure, which is also registered by the displacement measuring system.
  • the position measuring system then regulates the speed at which the wire drawing device makes wire available via the frequency controller and reduces the speed of the drawing disk of the wire drawing device.
  • the wire drawing device makes it possible that the wire, which is particularly sensitive in the loading direction transverse to its main direction of extension, is not kinked by the kickback force of a dancer arm. This is achieved by guiding the wire from the drawing disk in an arc essentially orthogonal to the direction of the wire guide element, typically along a plane parallel to the main extension plane of the drawing disk, through the wire guide element to the downstream processing machine and determining the position of the wire in the wire guide element without contact. If the following processing machine processes the same amount of wire as is provided by the wire drawing device, the position of the wire in the wire guide element remains stable. If the position of the wire in the wire guide element changes, this is detected and the speed of the drawing disk is automatically adjusted accordingly.
  • wire material is drawn in discontinuously, that is, in cycles, from the downstream processing machine, while the wire is continuously supplied from the drawing disk.
  • the wire material guided through the wire guide element therefore represents a material buffer in the area of the wire guide element.
  • the wire position in the wire guide element swings around a zero position. If the oscillation of the wire position is within a target range, the drawing disk supplies as much wire as is drawn in by the following processing machine on average over time.
  • the time average is understood here to mean that the time averaging takes place over a period of time which corresponds to an integral multiple of a cycle of the downstream processing machine.
  • the drawing pulley feeds more or less wire than the next
  • the processing machine moves in as averaged over time
  • the speed of the drawing disk is regulated based on the distance of the oscillation from the target range, so that the vibration returns to the target range and as much wire is supplied from the drawing disk as the subsequent processing machine draws in as averaged over time.
  • the wire control device is attached to a holding frame.
  • the direction of the wire guide element is preferably horizontal, particularly preferably the direction of the wire guide element is horizontal and, in the horizontal plane, aligned in a line with the drawing disk and the downstream processing machine.
  • the wire control device has a control unit with which the speed of the drawing disk can be regulated via a frequency controller of the drive of the drawing disk.
  • the control unit has a PID controller with which a control characteristic can be set. In particular, overshoots in the speed control can be avoided in this way.
  • the wire control device has a housing, the housing having an upper side part and a lower side part. It is conceivable that the housing also has a right side part and a left side part. This makes it possible to protect the measuring area and in particular the sensor device from mechanical damage or from contamination. Furthermore, the housing allows a stable and stable mounting on a holding frame and thus an improvement of the measurement results and thus the regulation of the speed of the drawing pulley.
  • the means for leading the wire through are each a gap along the direction of the wire guide element in the upper side part and in the lower side part.
  • a shaft consisting of two columns, preferably a vertical shaft, for the passage of the wire is implemented in an advantageously stable manner. It is also possible to prevent uncontrolled movements of the wire, for example transversely to the direction of the wire guide element, to stabilize the guidance of the wire and thus to protect the surroundings of the wire drawing device from uncontrolled movements and deflections of the wire.
  • the measuring light barrier should be described as the first option (sensor device at least one light grid along the direction of the wire guide element)
  • Light grid consists of a pair of measuring light barriers, which are arranged parallel, opposite.
  • the sensor device has an optical Distance sensor, preferably a light barrier, particularly preferably a distance-measuring light barrier.
  • Optical distance sensors of excellent quality can be obtained inexpensively as a standard component and are outstandingly suitable as sensors of the sensor device of the present invention.
  • Optical distance sensors, in particular light barriers, are sufficiently robust and have a long service life.
  • the sensor device has at least one optical distance sensor at one end of the wire guide element, a measuring section of the optical distance sensor being aligned along the direction of the wire guide element.
  • the sensor device has at least one light grid along the direction of the wire guide element.
  • the sensor device has a plurality of light barriers, the light barriers of the plurality of light barriers being arranged next to one another along the direction of the wire guide element, measuring sections of the light barriers of the plurality of light barriers being essentially orthogonal to Direction of the wire guide element and are arranged essentially orthogonal to the wire in the wire guide element.
  • the sensor device has an inductive displacement sensor.
  • Inductive displacement sensors like optical distance sensors, are standard components that have found widespread use in industry.
  • the sensor device has a capacitive displacement sensor.
  • the sensor device has an ultrasonic sensor or a sensor for measuring a phase shift, such as a laser interferometer, for example.
  • the sensor device has at least one of the named sensors at one end of the wire guide element, a measuring section of the named sensor being aligned along the direction of the wire guide element.
  • the sensor device has a plurality of said sensors along the direction of the wire guide element.
  • the opposite ends of the means for guiding the wire in the direction of the wire guide element each have an emergency switch. This advantageously enables the wire drawing device and / or the downstream processing machine to be switched off in an emergency or, in particular, also a second possibility of speed control as redundancy in the event of the failure of the sensor device.
  • the emergency switches are light barriers. Photoelectric barriers are ideally suited as emergency switches of the present invention. In order to fulfill the function as an emergency switch, a signal only needs to be output when the wire arrives at a certain position, here at the opposite ends of the shaft in the direction of the wire guide element. This can be done inexpensively and without wear with light barriers.
  • the emergency switches are mechanical switches. This enables the emergency switch to be switched safely without the risk of false tripping or incorrectly omitted tripping due to the occurrence of light reflections.
  • Another object of the present invention for solving the object formulated at the beginning is the method of claim 9 for operating a wire drawing device.
  • the method according to the invention enables the material properties of the wire not to be negatively influenced by the kickback force of a dancer arm and, in particular, not to be kinked. This is achieved by guiding the wire from the drawing disk in an arc essentially orthogonal to the direction of the wire guide element and typically within a plane which is parallel to the main extension plane of the drawing disk, through the wire guide element of the wire control device to the downstream processing machine and the position of the wire in the wire guide element is determined without contact.
  • the wire is continuously supplied from the drawing pulley. If the following processing machine now draws in wire discontinuously, the wire position in the wire guide element swings around a zero position. If the oscillation of the wire position is within a target range, the drawing disk supplies as much wire as is drawn in by the following processing machine on average over time. If the oscillation leaves the target range, the drawing pulley conveys more or less wire than the following processing machine on average over time draws in, the speed of the drawing pulley is regulated based on the distance between the vibration and the target range, so that the vibration returns to the target range and as much wire is supplied from the drawing pulley as the following processing machine draws in over time.
  • the direction of the wire guide element is preferably horizontal, particularly preferably the direction of the wire guide element is aligned horizontally and in the horizontal plane in a line with the drawing disk and the downstream processing machine.
  • the wire drawing device is a wire drawing device according to one of Claims 1 to 8.
  • a frequency regulator is controlled to adjust the speed of the drawing disk, which in turn controls the drive of the drawing disk.
  • the speed is increased and if the wire position deviates from the target range in a second direction along the direction of the wire guide element , the speed is reduced, the second direction being opposite to the first direction.
  • the first direction is preferably directed essentially towards the drawing disk and the second direction is oriented essentially away from the drawing disk. If the drawing disk conveys the wire on its side facing the downstream processing machine, the first direction is preferably directed essentially away from the drawing disk and the second direction is oriented essentially toward the drawing disk.
  • a control loop for regulating the speed of the wire is thus defined in an advantageous manner.
  • the wire position is determined with an optical distance sensor, preferably with a light barrier, particularly preferably with a distance-measuring light barrier.
  • the wire position is determined by the optical distance sensor, the light barrier or the distance-measuring light barrier from one end of the wire guide element along the direction of the wire guide element.
  • the wire position is determined by a light grid or a plurality of light barriers along the direction of the wire guide element.
  • drawing pulley and / or the downstream processing machine are stopped if a first emergency switch determines that the wire position corresponds to a minimum wire position or if a second emergency switch determines that the wire position corresponds to a maximum wire position.
  • the strength of the acceleration or deceleration when regulating the speed based on the distance of the wire position from Target range is regulated. This enables a further improvement and refinement of the speed setting and thus protects the wire and the machines. It is also possible to avoid overshoots in the control.
  • Figure 1 is a schematic view of a wire drawing device according to an exemplary embodiment of the present invention and a subsequent processing machine 12 shown.
  • the drawing die 13 reduces the cross section of the wire 10.
  • the wire 10 is conveyed at a speed in an arc to the downstream processing machine 12 via the drawing disk 11.
  • the subsequent processing machine 12 removes the wire 10 at a further speed.
  • the speed at which the pulley 11 pulls the wire 10 conveys and the further speed at which the downstream processing machine 12 picks up the wire is of different magnitude, so if there is a difference, the speed at which the drawing disk 11 conveys the wire 10 must be adapted.
  • the wire 10 is guided through the wire control device 1. In the wire control device 1, the wire position is measured without contact.
  • the length of the archwire is greater and the wire position shifts to the right in the drawing. If the speed at which the drawing disk 11 conveys the wire 10 is less than the further speed at which the subsequent processing machine 12 picks up the wire, the length of the archwire is shorter and the wire position shifts to the left in the drawing.
  • a wire control device 1 according to an exemplary embodiment of the present invention is shown schematically.
  • the wire control device 1 has the housing 4 with the upper side part 4 ′, the lower side part, the right side part and the left side part, which is fastened to the holder 6.
  • the wire 10 is guided through the means 3 for passing the wire 10 through from the bottom to the top between the first emergency switch 5 and the second emergency switch 5 in the drawing.
  • the wire position along the direction of the wire guide element 2 is determined by a distance-measuring light barrier (not shown).
  • the difference between the speed at which the drawing disk 11 (not shown here) conveys the wire 10 and the further speed at which the downstream processing machine 12 (not shown here) conveys the wire 10 takes up determined and the speed of the drawing disk 11 is adjusted so that the difference is zero.
  • the setting of the speed of the drawing pulley 11 takes place via an electrical connection via the cable 7 from the wire control device 1 to the frequency controller of the drive of the drawing pulley 11.
  • One of the two emergency switches 5 registers that the wire position corresponds to a minimum wire position or a maximum wire position and thus If the target value of the wire position deviates very much, the drawing disk 11 and the subsequent processing machine 12 are stopped or the speed of the drawing disk 11 is readjusted accordingly.

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

Claims (13)

  1. Appareil à pré-tréfiler destiné à réduire la section transversale d'un fil métallique (10), l'appareil à pré-tréfiler présentant un disque d'étirage (11), l'appareil à pré-tréfiler présentant un dispositif de commande de fil (1), le dispositif de commande de fil (1) présentant un élément de guidage de fil (2) s'étendant en longueur le long d'une direction et étant doté de moyens (3) pour faire passer le fil métallique (10),
    dans lequel l'appareil à pré-tréfiler est conçu de telle sorte que le fil métallique (10) peut être guidé du disque d'étirage (11) suivant un arc de manière substantiellement orthogonale à la direction de l'élément de guidage de fil (2) à travers l'élément de guidage de fil (2) jusqu'à une machine de traitement (12) en aval,
    caractérisé en ce que le dispositif de commande de fil (1) présente un dispositif de capteur pour la détermination sans contact d'une position de fil le long de la direction de l'élément de guidage de fil (2) .
  2. Appareil à pré-tréfiler selon la revendication précédente, dans lequel le dispositif de commande de fil (1) présente un boîtier (4), le boîtier (4) présentant une partie latérale supérieure (4') et une partie latérale inférieure.
  3. Appareil à pré-tréfiler selon l'une quelconque des revendications précédentes, dans lequel les moyens (3) pour faire passer le fil métallique (10) sont une fente le long de la direction de l'élément de guidage de fil (2) dans la partie latérale supérieure (4') et dans la partie latérale inférieure, respectivement.
  4. Appareil à pré-tréfiler selon l'une quelconque des revendications précédentes, dans lequel le dispositif de capteur présente un capteur de distance optique, de préférence une barrière lumineuse, de manière particulièrement préférée une barrière lumineuse mesurant la distance.
  5. Appareil à pré-tréfiler selon l'une quelconque des revendications précédentes, dans lequel le dispositif de capteur présente un capteur de déplacement inductif.
  6. Appareil à pré-tréfiler selon l'une quelconque des revendications précédentes, dans lequel les extrémités, opposées en direction de l'élément de guidage de fil (2), des moyens (3) pour faire passer le fil métallique (10) présentent un interrupteur d'arrêt d'urgence (5), respectivement.
  7. Appareil à pré-tréfiler selon la revendication 6, dans lequel les interrupteurs d'arrêt d'urgence (5) sont des barrières lumineuses.
  8. Appareil à pré-tréfiler selon la revendication 6, dans lequel les interrupteurs d'arrêt d'urgence (5) sont des interrupteurs mécaniques.
  9. Procédé d'exploitation d'un appareil à pré-tréfiler, dans lequel un fil métallique (10) est guidé à une certaine vitesse d'un disque d'étirage (11) de l'appareil à pré-tréfiler jusqu'à une machine de traitement (12) en aval, le fil métallique (10) étant guidé à travers un élément de guidage de fil (2) s'étendant en longueur le long d'une direction,
    dans lequel le fil métallique (10) est guidé du disque d'étirage (11) suivant un arc de manière substantiellement orthogonale à la direction de l'élément de guidage de fil (2) à travers l'élément de guidage de fil (2) jusqu'à la machine de traitement (12) en aval, la vitesse étant régulée à l'aide d'une position de fil en direction de l'élément de guidage de fil (2) lors du passage du fil métallique (10) à travers l'élément de guidage de fil (2),
    caractérisé en ce que la position de fil est déterminée sans contact.
  10. Procédé selon la revendication 9, dans lequel la vitesse est augmentée si la position de fil s'écarte d'une plage de consigne dans une première direction le long de la direction de l'élément de guidage de fil (2), et la vitesse est diminuée si la position de fil s'écarte de la plage de consigne dans une deuxième direction le long de la direction de l'élément de guidage de fil (2), la deuxième direction étant opposée à la première direction.
  11. Procédé selon l'une quelconque des revendications 9 à 10, dans lequel la position de fil est déterminée par un capteur de distance optique, de préférence par une barrière lumineuse, de manière particulièrement préférée par une barrière lumineuse mesurant la distance.
  12. Procédé selon l'une quelconque des revendications 9 à 11, dans lequel la vitesse est augmentée si un premier interrupteur d'arrêt d'urgence (5) détermine que la position de fil correspond à une position de fil minimale, et la vitesse est diminuée si un deuxième interrupteur d'arrêt d'urgence (5) détermine que la position de fil correspond à une position de fil maximale.
  13. Procédé selon l'une quelconque des revendications 9 à 12, dans lequel le degré de l'accélération ou de la décélération lors de la régulation de la vitesse est régulé à l'aide de la distance de la position de fil par rapport à la plage de consigne.
EP19168560.1A 2018-04-11 2019-04-11 Appareil d'avancement de fil doté d'un capteur permettant de déterminer la position de fil et procédé de fonctionnement d'un appareil d'avancement de fil Active EP3552724B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018108600.8A DE102018108600B4 (de) 2018-04-11 2018-04-11 Drahtvorziehgerät mit einer Sensoreinrichtung zur Bestimmung der Drahtposition und Verfahren zum Betrieb eines Drahtvorziehgerätes

Publications (2)

Publication Number Publication Date
EP3552724A1 EP3552724A1 (fr) 2019-10-16
EP3552724B1 true EP3552724B1 (fr) 2021-03-10

Family

ID=66105136

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19168560.1A Active EP3552724B1 (fr) 2018-04-11 2019-04-11 Appareil d'avancement de fil doté d'un capteur permettant de déterminer la position de fil et procédé de fonctionnement d'un appareil d'avancement de fil

Country Status (2)

Country Link
EP (1) EP3552724B1 (fr)
DE (1) DE102018108600B4 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709021A (en) * 1970-06-25 1973-01-09 Jackman Conlin Ass Inc Strand processing apparatus
JPS6139729Y2 (fr) * 1980-08-23 1986-11-13
DE3235217A1 (de) * 1982-09-23 1984-03-29 Ferdinand Dipl.-Ing. 4006 Erkrath Liekmeier Drahtabzugseinrichtung fuer intermittierenden betrieb und hohe ungleichfoermigkeitsgrade
US5256873A (en) * 1992-09-03 1993-10-26 Eaton Corporation Multiple station through beam photoelectric sensor
JP2553551Y2 (ja) * 1993-02-12 1997-11-05 住友軽金属工業株式会社 線管材の取出制御装置におけるループ検出装置およびこれを用いた抽伸機
JP3373449B2 (ja) * 1999-05-28 2003-02-04 住友軽金属工業株式会社 線管材のループ位置制御方法及び装置
DE102005049018A1 (de) 2005-10-11 2007-04-12 Jankowski Gmbh & Co. Kg Ziehscheibe für eine Drahtziehvorrichtung, Drahtziehvorrichtung und Verfahren
DE102006026994B4 (de) * 2006-06-08 2008-05-29 Jankowski Gmbh & Co. Kg Anordnung und Verfahren zur Bearbeitung von Draht

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3552724A1 (fr) 2019-10-16
DE102018108600A1 (de) 2019-10-17
DE102018108600B4 (de) 2020-02-20

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