EP0459869A1 - Procedure and device for the automatic control of straightening rollers - Google Patents

Procedure and device for the automatic control of straightening rollers Download PDF

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Publication number
EP0459869A1
EP0459869A1 EP91401318A EP91401318A EP0459869A1 EP 0459869 A1 EP0459869 A1 EP 0459869A1 EP 91401318 A EP91401318 A EP 91401318A EP 91401318 A EP91401318 A EP 91401318A EP 0459869 A1 EP0459869 A1 EP 0459869A1
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EP
European Patent Office
Prior art keywords
roller
diameter
product
dressing
rollers
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Granted
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EP91401318A
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German (de)
French (fr)
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EP0459869B1 (en
Inventor
Noel Carrere
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work

Definitions

  • roller dressers It is also known to produce such roller dressers with devices which make it possible to modify the position of at least some of the rollers in order to adapt the dresser to different products to be dressed.
  • the present invention relates to a method and a device which allow an automatic adjustment of the position of the rollers so as to constantly obtain a correct dressing of the product to be dressed.
  • the invention is particularly advantageous in the case where products are produced which have large variations in cross-sections, such as for example concrete steels, of which, as is well known, correct dressing is particularly difficult to implement. .
  • the subject of the present invention is a process for automatic adjustment of the position of at least one dresser roller of a roller dresser, with a view to obtaining the correct dressing of an elongated product which may have variations in sections, characterized by the fact that the diameter of the product to be dressed is measured in a plane perpendicular to the axes of the dressing rollers and that, as a function of the diameter thus determined, the positioning of at least one of the dressing rollers is caused, this positioning corresponding to the dressing correct of an elongated product whose diameter in the dressing plane is equal to the measured diameter.
  • the diameter of the elongated product is measured upstream of at least one group of rollers which participate in the dressing in the plane considered.
  • the response time of the device for positioning the roller (s) as a function of the diameter of the product to be straightened is determined so that it corresponds substantially to the duration of the path of the product to be straightened between the place where its diameter is measured and the place where the positioning of at least one dressing roller furthest downstream is carried out according to the invention.
  • each trainer must have an automatic adjustment operating according to the method of the invention.
  • the present invention also relates to an automatic device for adjusting the position of at least one dresser roller of a roller dresser to obtain the straightness of the product to be dressed despite the variations in diameter of the latter, device characterized by the fact that it comprises in combination: a feeler device for determining the diameter of the product to be dressed in the dressing plane; means for modifying the positioning of at least one of the dressing rollers; and a servo device making it possible to modify the position of the dressing roller (s) as a function of the diameter of the product to be dressing measured by the feeler device.
  • the feeler device is located upstream of the dresser, or between the dresser rollers but upstream of at least some dresser rollers whose position is automatically adjusted according to the invention.
  • the feeler member can be constituted by two rollers which bear on either side of the product to be straightened or else using a feeler roller which bears on the product to be straightened opposite a dressing roller.
  • a feeler roller which has a V-shaped section open at an angle of about 100 to 120 ° which generally corresponds to the profile of the dresser rollers.
  • the servo device which connects the feeler device to the dressing roller (s), the position of which can be modified, to carry out the presetting of the dresser for a product to be dressed having a given diameter and to determine the variations in the preset position of the positionable roller (s) as a function of the variation in diameter of the product to be dressed.
  • the response time of the servo-control as a function of the running speed of the product to be dressed, this response time possibly being advantageously substantially equal to the time that the elongated product takes to travel the distance between the feeler device and the most downstream roller (s), the position of which is adjusted in accordance with the invention.
  • the blocking roller (s) whose position is modified as a function of the diameter of the product to be straightened are located among the last three rollers arranged downstream of the straightener.
  • the position of all the dressing rollers is modified according to variations in the diameter of the product to be dressed.
  • the servo-control device between the feeler which determines the diameter of the wire and the dresser roller (s) which can be moved can be constituted by a purely mechanical means or preferably by a hydraulic, electric or hydro-electric system.
  • FIG. 1 shows a feeler device which makes it possible to determine the diameter of the product to be dressed 1 according to the dressing plane at a position situated for example upstream of the dresser or between two dresser rollers of the latter.
  • This feeler device consists of a support 2 articulated at 3 on a fixed axis and which supports an oscillating lever 4 articulated at 5.
  • the support 2 is provided with a feeler roller 6 while the lever 4 is provided with a feeler roller 7.
  • the rollers 6 and 7 are intended to be placed on either side of the product to be straightened 1 which may be by example consisting of concrete steel.
  • the feeler rollers 6 and 7 are provided with bi-conical grooves with an open angle of approximately 100 to 120 °.
  • a return spring 8 is disposed between the support 2 and the lever 4 so as to apply the rollers 6 and 7 against each other by pinching the product to be straightened 1.
  • a part 9 provided with an orifice and integral with the support 2 is held between two springs 10 and 11 which are threaded on a bolt 12 while being compressed by a nut 13.
  • the bolt 12 is supported by a part 14 integral with the frame of the blocker.
  • the feeler device is supported by the spring 10 which in cooperation with the spring 11 nevertheless allows a certain lateral movement of the product to be dressed 1.
  • An electronic sensor 15 for example of the inductive, capacitive, ultrasonic or incremental type, is articulated at 16 on the support 2 and at 17 on the lever 4.
  • This sensor 9 sends at 18 an electrical signal which is a function of the existing spacing between the two feeler rollers 6 and 7, that is to say as a function of the diameter of the product to be dressed 1 according to the dressing plane.
  • this electrical signal it is possible, for example by means of a hydraulic or electric device, to permanently modify the positioning of one or more dressing rollers in order to adapt the configuration of the dresser to the local diameter of the product to be dressed.
  • FIG. 2 shows another embodiment of the device according to the invention.
  • the product to be dressed 1 which is for example a concrete steel, is subjected to a dressing which takes place by alternating bending around a series of rollers 20, 21, 22, 23, 24, 25 staggered.
  • the straightening wire is drawn by known means to the left in the direction of arrow F.
  • a feeler roller 26 mounted on a support 27 oscillating around a fixed axis 28 is arranged opposite the dresser roller 21.
  • the feeler roller 26 is applied against the concrete steel 1 by a spring 8 whose upper end is supported on a fixed part 29 and whose lower end is supported on the shoulder 30 of a rod 31.
  • the force of the spring 8 is sufficient to constantly apply the feeler roller 26 against the concrete steel 1 so that the position of the rod 31 makes it possible to determine its diameter in the dressing plane.
  • the drawer 37 is controlled by a rod 38 provided with a roller at its end.
  • a lever 39 is articulated at its end at 40 on the rod 31 and at its other end, it rests by means of the knurled screw 40 on the end of the lever 38 which, as has been said, is provided a roulette.
  • the lever 39 is capable of tilting around a point 42 secured to a plate 43 which can be fixed in different positions parallel to the direction of the lever 39.
  • the knurled screw 41 allows, for a given position of the feeler roller 26 which corresponds to the nominal diameter of the product to be straightened, to position the drawer 37 so as to obtain the basic setting of the pressure roller 24 which allows a straight output of the product to draw up 1.
  • the feeler device is located upstream of the dresser roller 24 which is positioned in accordance with the invention.
  • the pressure losses in the hydraulic circuit are determined in such a way that the response time of the hydraulic cylinder 32 under the action of the distributor slide 37 corresponds to the time that it takes the product to be straightened 1 to cover the distance separating the feeler roller 26 from the dresser roller 24.
  • FIG. 3 shows another embodiment of the invention which uses a blocker of the type described in French patent application No. 90 05569 of May 3, 1990.
  • a blocker of this type shown in FIG. 3 comprises four plates A, B, C, D which are capable of being displaced in parallel with each other thanks to the fact that they are connected by connecting rods 44 to a lever 45 which is itself articulated on tray C. One of these trays is fixed.
  • the dresser rollers 20, 21, 22, 23, 24, 25 are integral with arms 46 articulated on a plate and connected by a link 47 to the neighboring plate.
  • the blocking rollers are fixed on the levers 46 at a quarter of the distance existing between the point of articulation of the levers 46 on their plate and their point of articulation on their link 47.
  • the distance between the plates is modified by acting on the lever 45 by means of the threaded rod 48 which engages in a nut 49 which is free to rotate but which is kept axially in position, this nut being driven by a motor, for example hydraulic 50, by means of a gear train 51.
  • any modification of the angular position of the lever 45 results in a displacement of the dressing rollers 20, 21, 22, 23, 24, 25 which remain equidistant from each other and which all approach or move apart in the same way of the axis of the product to be straightened 1.
  • lever 52 articulated on the lever 46 which supports the roller 23.
  • the lower end of this lever 52 carries a feeler roller 26 which is located in line with the dresser roller 23 against which it is pushed back by the action of the return spring 8 which joins the lever 52 to the plate D.
  • the plate D supports a hydraulic slide 37 which is connected by a rod 53 at a point on the upper end of the lever 52.
  • a flywheel 54 acting on two threads with opposite pitch makes it possible to modify the length of the rod 53 at will and to adapt the position of the feeler roller 26 so that for the nominal diameter of the product to be straightened and the corresponding position of the rollers dressers, the distributor drawer 37 is in a neutral position which does not modify the spacing between the plates A, B, C, D.
  • the upper end of the lever 52 has a series of orifices 55 to each of which it is possible to connect the left end of the rod 53 so as to modify the amount of displacement of the hydraulic slide 37 for a given variation. the diameter of the product to be straightened 1 as measured by the feeler roller 26.
  • the hydraulic distributor 37 is used to supply the hydraulic motor 50 shown diagrammatically in the drawing.
  • the feeler roller 26 detects an increase in the diameter of the product to be straightened 1
  • the lever 52 pushes the rod 53 to the right which, thanks to the hydraulic slide 37 causes the hydraulic motor 50 to rotate and via the gear train 51 the rotation of the nut 49 which moves the threaded rod 48 and the end of the lever 45 to the left.
  • the choice of one of the orifices 55 at the end of the lever 52 makes it possible to modify the amplification ratio of the movement of the hydraulic slide 37 as a function of the movements of the feeler roller 26.
  • the response time of the control of the position of the dresser rollers to that of the feeler roller 26 is substantially equal to the time taken by the product to be dressed to go from the feeler roller 26 to the exit from the trainer.
  • the motor 50, the gear train 51 and the nut 44 can be replaced by a hydraulic cylinder, for example.
  • the invention can be applied to different types of devices which allow the displacement of the dressing rollers to adapt them to the different diameters of the wire to be dressed.
  • the servo-control of the position of the dressing roller (s) relative to the wire diameter detector can be achieved by any mechanical, electrical or hydraulic means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Rehabilitation Tools (AREA)

Abstract

The invention relates to a method and to a device for automatically adjusting the position of at least one straightening roller of a roller straightener with a view to obtaining the correct straightening of an elongate product which has variations in cross-section. The diameter of the product to be straightened (1) is measured (21, 2; 23, 26) in a plane perpendicular to the axes of the straightening rollers (20, 21, 22, 23, 24, 25) and as a function of the diameter thus determined, the positioning of at least one of the straightening rollers (20, 21, 22, 23, 24, 25) is caused, this positioning corresponding to the correct straightening of an elongate product whose diameter in the straightening plane is equal to the measured diameter. <IMAGE>

Description

On sait que l'on procède au dressage des produits métalliques allongés tels que les fils ou les barres en les faisant passer entre des successions de galets qui leur imposent des flexions alternées d'importances décroissantes, et ceci dans plusieurs plans.We know that we proceed to the dressing of elongated metal products such as wires or bars by passing them between successions of rollers which impose alternate bending of decreasing importance, and this in several planes.

Il est également connu de réaliser de tels dresseurs à galets avec des dispositifs qui permettent de modifier la position d'au moins certains des galets pour adapter le dresseur à différents produits à dresser.It is also known to produce such roller dressers with devices which make it possible to modify the position of at least some of the rollers in order to adapt the dresser to different products to be dressed.

La présente invention a pour objet un procédé et un dispositif qui permettent un réglage automatique de la position des galets de manière à obtenir constamment un dressage correct du produit à dresser.The present invention relates to a method and a device which allow an automatic adjustment of the position of the rollers so as to constantly obtain a correct dressing of the product to be dressed.

L'invention est particulièrement intéressante dans le cas où l'on dresse des produits qui connaissent d'importantes variations de sections, comme par exemple les aciers à béton dont, comme cela est bien connu, un dressage correct est particulièrement difficile à mettre en oeuvre.The invention is particularly advantageous in the case where products are produced which have large variations in cross-sections, such as for example concrete steels, of which, as is well known, correct dressing is particularly difficult to implement. .

La présente invention a pour objet un procédé de réglage automatique de la position d'au moins un galet dresseur d'un dresseur à galets, en vue d'obtenir le dressage correct d'un produit allongé qui peut présenter des variations de sections, caractérisé par le fait que l'on mesure le diamètre du produit à dresser dans un plan perpendiculaire aux axes des galets dresseurs et qu'en fonction du diamètre ainsi déterminé on provoque le positionnement d'au moins un des galets dresseurs, ce positionnement correspondant au dressage correct d'un produit allongé dont le diamètre dans le plan de dressage est égal au diamètre mesuré.The subject of the present invention is a process for automatic adjustment of the position of at least one dresser roller of a roller dresser, with a view to obtaining the correct dressing of an elongated product which may have variations in sections, characterized by the fact that the diameter of the product to be dressed is measured in a plane perpendicular to the axes of the dressing rollers and that, as a function of the diameter thus determined, the positioning of at least one of the dressing rollers is caused, this positioning corresponding to the dressing correct of an elongated product whose diameter in the dressing plane is equal to the measured diameter.

Selon un mode de mise en oeuvre préféré du procédé selon l'invention, le diamètre du produit allongé est mesuré en amont d'au moins un groupe de galets qui participent au dressage dans le plan considéré.According to a preferred embodiment of the method according to the invention, the diameter of the elongated product is measured upstream of at least one group of rollers which participate in the dressing in the plane considered.

Selon un mode de mise en oeuvre préféré de l'invention, le temps de réponse du dispositif de positionnement du ou des galets en fonction du diamètre du produit à dresser est déterminé de manière à ce qu'il corresponde sensiblement à la durée du trajet du produit à dresser entre l'endroit où son diamètre est mesuré et l'endroit où le positionnement d'au moins un galet dresseur le plus en aval est effectué selon l'invention.According to a preferred embodiment of the invention, the response time of the device for positioning the roller (s) as a function of the diameter of the product to be straightened is determined so that it corresponds substantially to the duration of the path of the product to be straightened between the place where its diameter is measured and the place where the positioning of at least one dressing roller furthest downstream is carried out according to the invention.

Comme cela est connu, il est nécessaire pour obtenir un dressage complet d'un produit allongé de le faire passer dans au moins deux dresseurs à galets orientés selon des angles différents. Conformément à l'invention chaque dresseur doit disposer d'un réglage automatique fonctionnant selon le procédé de l'invention.As is known, it is necessary to obtain a complete dressing of an elongated product to pass it through at least two dressers with rollers oriented at different angles. According to the invention each trainer must have an automatic adjustment operating according to the method of the invention.

La présente invention a également pour objet un dispositif de réglage automatique de la position d'au moins un galet dresseur d'un dresseur à galets pour obtenir la rectitude du produit à dresser malgré les variations de diamètre de ce dernier, dispositif caractérisé par le fait qu'il comporte en combinaison : un dispositif palpeur pour déterminer le diamètre du produit à dresser dans le plan de dressage; un moyen pour modifier le positionnement d'au moins un des galets dresseurs; et un dispositif d'asservissement permettant de modifier la position du ou des galets dresseurs en fonction du diamètre du produit à dresser mesuré par le dispositif palpeur.The present invention also relates to an automatic device for adjusting the position of at least one dresser roller of a roller dresser to obtain the straightness of the product to be dressed despite the variations in diameter of the latter, device characterized by the fact that it comprises in combination: a feeler device for determining the diameter of the product to be dressed in the dressing plane; means for modifying the positioning of at least one of the dressing rollers; and a servo device making it possible to modify the position of the dressing roller (s) as a function of the diameter of the product to be dressing measured by the feeler device.

Selon un mode de réalisation préféré de l'invention, le dispositif palpeur est situé en amont du dresseur, ou entre les galets dresseurs mais en amont d'au moins certains galets dresseurs dont la position est automatiquement réglée selon l'invention.According to a preferred embodiment of the invention, the feeler device is located upstream of the dresser, or between the dresser rollers but upstream of at least some dresser rollers whose position is automatically adjusted according to the invention.

Conformément à l'invention l'organe de palpage peut être constitué par deux galets qui prennent appui de part et d'autre du produit à dresser ou encore à l'aide d'un galet palpeur qui prend appui sur le produit à dresser en face d'un galet de dressage.In accordance with the invention, the feeler member can be constituted by two rollers which bear on either side of the product to be straightened or else using a feeler roller which bears on the product to be straightened opposite a dressing roller.

Conformément à l'invention il est avantageux d'utiliser un galet palpeur qui a une section en V ouverte selon un angle d'environ 100 à 120° qui correspond généralement au profil des galets dresseurs.According to the invention it is advantageous to use a feeler roller which has a V-shaped section open at an angle of about 100 to 120 ° which generally corresponds to the profile of the dresser rollers.

Conformément à l'invention il est possible en agissant sur le dispositif d'asservissement qui relie le dispositif palpeur au(x) galet(s) de dressage dont la position est modifiable, de procéder au préréglage du dresseur pour un produit à dresser ayant un diamètre donné et de déterminer les variations de la position de préréglage du ou des galets positionnables en fonction de la variation de diamètre du produit à dresser.In accordance with the invention, it is possible, by acting on the servo device which connects the feeler device to the dressing roller (s), the position of which can be modified, to carry out the presetting of the dresser for a product to be dressed having a given diameter and to determine the variations in the preset position of the positionable roller (s) as a function of the variation in diameter of the product to be dressed.

On peut ainsi grâce au dispositif selon l'invention, disposer d'un moyen de commande simple qui permet de modifier le réglage de base lors, par exemple, d'un changement de type de produit à dresser.It is thus possible, thanks to the device according to the invention, to have a simple control means which makes it possible to modify the basic setting during, for example, a change in the type of product to be dressed.

Conformément à l'invention il est avantageux de régler le temps de réponse de l'asservissement en fonction de la vitesse de défilement du produit à dresser, ce temps de réponse pouvant être avantageusement sensiblement égal au temps que met le produit allongé pour parcourir la distance entre le dispositif palpeur et le ou les galets les plus en aval dont la position est réglée conformément à l'invention.In accordance with the invention, it is advantageous to adjust the response time of the servo-control as a function of the running speed of the product to be dressed, this response time possibly being advantageously substantially equal to the time that the elongated product takes to travel the distance between the feeler device and the most downstream roller (s), the position of which is adjusted in accordance with the invention.

Selon un mode de réalisation particulier de l'invention, le ou les galets dresseurs dont la position est modifiée en fonction du diamètre du produit à dresser se situent parmi les trois derniers galets disposés en aval du dresseur.According to a particular embodiment of the invention, the blocking roller (s) whose position is modified as a function of the diameter of the product to be straightened are located among the last three rollers arranged downstream of the straightener.

Selon un autre mode de réalisation particulier, la position de tous les galets dresseurs est modifiée en fonction des variations du diamètre du produit à dresser.According to another particular embodiment, the position of all the dressing rollers is modified according to variations in the diameter of the product to be dressed.

Le dispositif d'asservissement entre le palpeur qui détermine le diamètre du fil et le ou les galets dresseurs qui sont déplaçables peut être constitué par un moyen purement mécanique ou de préférence par un système hydraulique, électrique ou hydro-électrique.The servo-control device between the feeler which determines the diameter of the wire and the dresser roller (s) which can be moved can be constituted by a purely mechanical means or preferably by a hydraulic, electric or hydro-electric system.

Dans le but de mieux faire comprendre l'invention on va en décrire à titre d'illustration plusieurs modes de réalisations donnés à titre d'exemples non limitatifs et représentés sur le dessin annexé dans lequel :

  • la figure 1 est une vue en coupe partielle d'un premier mode de réalisation du dispositif palpeur selon l'invention.
  • la figure 2 est une vue schématique en élévation d'un premier mode de réalisation de l'invention, et
  • la figure 3 est une vue en élévation d'un second mode de réalisation de l'invention.
In order to better understand the invention we will describe by way of illustration several embodiments given by way of non-limiting examples and shown in the accompanying drawing in which:
  • Figure 1 is a partial sectional view of a first embodiment of the feeler device according to the invention.
  • FIG. 2 is a schematic elevation view of a first embodiment of the invention, and
  • Figure 3 is an elevational view of a second embodiment of the invention.

On a représenté sur la figure 1 un dispositif palpeur qui permet de déterminer le diamètre du produit à dresser 1 selon le plan de dressage à une position située par exemple en amont du dresseur ou entre deux galets dresseurs de ce dernier.FIG. 1 shows a feeler device which makes it possible to determine the diameter of the product to be dressed 1 according to the dressing plane at a position situated for example upstream of the dresser or between two dresser rollers of the latter.

Ce dispositif palpeur est constitué par un support 2 articulé en 3 sur un axe fixe et qui supporte un levier oscillant 4 articulé en 5.This feeler device consists of a support 2 articulated at 3 on a fixed axis and which supports an oscillating lever 4 articulated at 5.

Le support 2 est muni d'un galet palpeur 6 alors que le levier 4 est muni d'un galet palpeur 7. Les galets 6 et 7 sont destinés à se placer de part et d'autre du produit à dresser 1 qui peut être par exemple constitué par un acier à béton.The support 2 is provided with a feeler roller 6 while the lever 4 is provided with a feeler roller 7. The rollers 6 and 7 are intended to be placed on either side of the product to be straightened 1 which may be by example consisting of concrete steel.

Les galets palpeurs 6 et 7 sont munis de gorges bi-coniques avec un angle ouvert d'environ 100 à 120°.The feeler rollers 6 and 7 are provided with bi-conical grooves with an open angle of approximately 100 to 120 °.

Un ressort de rappel 8 est disposé entre le support 2 et le levier 4 de manière à appliquer les galets 6 et 7 l'un contre l'autre en pinçant le produit à dresser 1.A return spring 8 is disposed between the support 2 and the lever 4 so as to apply the rollers 6 and 7 against each other by pinching the product to be straightened 1.

Pour maintenir les deux galets 6 et 7 symétriquement par rapport à l'axe du produit à dresser 1 qui est susceptible de se déplacer légèrement parallèlement à lui-même, et ceci sans que le produit à dresser 1 ait à subir le poids du support 2 et des organes qui sont fixés sur ce dernier, une pièce 9 munie d'un orifice et solidaire du support 2 se trouve maintenue entre deux ressorts 10 et 11 qui sont enfilés sur un boulon 12 en étant comprimés par un écrou 13. Le boulon 12 est supporté par une pièce 14 solidaire du bâti du dresseur.To maintain the two rollers 6 and 7 symmetrically with respect to the axis of the dressing product 1 which is capable of moving slightly parallel to itself, and this without the dressing product 1 having to undergo the weight of the support 2 and organs which are fixed on the latter, a part 9 provided with an orifice and integral with the support 2 is held between two springs 10 and 11 which are threaded on a bolt 12 while being compressed by a nut 13. The bolt 12 is supported by a part 14 integral with the frame of the blocker.

De cette manière le dispositif palpeur est supporté par le ressort 10 qui en coopération avec le ressort 11 permet néanmoins un certain déplacement latéral du produit à dresser 1.In this way the feeler device is supported by the spring 10 which in cooperation with the spring 11 nevertheless allows a certain lateral movement of the product to be dressed 1.

Un capteur électronique 15 par exemple de type inductif, capacitif, à ultrasons ou incrémental, est articulé en 16 sur le support 2 et en 17 sur le levier 4. Ce capteur 9 envoie en 18 un signal électrique qui est fonction de l'écartement existant entre les deux galets palpeurs 6 et 7, c'est-à-dire fonction du diamètre du produit à dresser 1 selon le plan de dressage.An electronic sensor 15, for example of the inductive, capacitive, ultrasonic or incremental type, is articulated at 16 on the support 2 and at 17 on the lever 4. This sensor 9 sends at 18 an electrical signal which is a function of the existing spacing between the two feeler rollers 6 and 7, that is to say as a function of the diameter of the product to be dressed 1 according to the dressing plane.

Grâce à ce signal électrique, il est possible, par exemple grâce à un dispositif hydraulique ou électrique, de modifier en permanence le positionnement d'un ou plusieurs galets de dressage pour adapter la configuration du dresseur au diamètre local du produit à dresser.Thanks to this electrical signal, it is possible, for example by means of a hydraulic or electric device, to permanently modify the positioning of one or more dressing rollers in order to adapt the configuration of the dresser to the local diameter of the product to be dressed.

On a représenté sur la figure 2 un autre mode de réalisation du dispositif selon l'invention.FIG. 2 shows another embodiment of the device according to the invention.

Dans ce mode de réalisation le produit à dresser 1, qui est par exemple un acier à béton, est soumis à un dressage qui s'effectue par flexions alternées autour d'une série de galets 20, 21, 22, 23, 24, 25 disposés en quinconce.In this embodiment, the product to be dressed 1, which is for example a concrete steel, is subjected to a dressing which takes place by alternating bending around a series of rollers 20, 21, 22, 23, 24, 25 staggered.

Le fil à dresser est entraîné par un moyen connu vers la gauche dans le sens de la flèche F.The straightening wire is drawn by known means to the left in the direction of arrow F.

Conformément à l'invention un galet palpeur 26 monté sur un support 27 oscillant autour d'un axe fixe 28 est disposé en vis-à-vis du galet dresseur 21. Le galet palpeur 26 est appliqué contre l'acier à béton 1 par un ressort 8 dont l'extrémité supérieure s'appuie sur une partie fixe 29 et dont l'extrémité inférieure s'appuie sur l'épaulement 30 d'une tige 31.In accordance with the invention, a feeler roller 26 mounted on a support 27 oscillating around a fixed axis 28 is arranged opposite the dresser roller 21. The feeler roller 26 is applied against the concrete steel 1 by a spring 8 whose upper end is supported on a fixed part 29 and whose lower end is supported on the shoulder 30 of a rod 31.

La force du ressort 8 est suffisante pour appliquer constamment le galet palpeur 26 contre l'acier à béton 1 de sorte que la position de la tige 31 permet de déterminer son diamètre dans le plan de dressage.The force of the spring 8 is sufficient to constantly apply the feeler roller 26 against the concrete steel 1 so that the position of the rod 31 makes it possible to determine its diameter in the dressing plane.

On voit également sur la figure 2 comment le galet dresseur 24 est monté sur un cylindre hydraulique 32 supporté par une biellette 33 qui est articulée en un point fixe 34, le piston de ce cylindre 32 étant solidaire d'une tige 35 articulée elle-même en un point fixe 36.We also see in Figure 2 how the dresser roller 24 is mounted on a hydraulic cylinder 32 supported by a link 33 which is articulated at a fixed point 34, the piston of this cylinder 32 being integral with a rod 35 articulated itself at a fixed point 36.

On a schématiquement représenté sur la figure 2 un tiroir hydraulique 37 qui par envoi de fluide hydraulique de part et d'autre du piston du cylindre 32 provoque le déplacement de ce dernier.Schematically shown in Figure 2 a hydraulic slide 37 which by sending hydraulic fluid on either side of the piston of the cylinder 32 causes the displacement of the latter.

Le tiroir 37 est commandé par une tige 38 munie d'une roulette à son extrémité.The drawer 37 is controlled by a rod 38 provided with a roller at its end.

Un levier 39 est articulé à son extrémité en 40 sur la tige 31 et à son autre extrémité, il repose par l'intermédiaire de la vis à tête moletée 40 sur l'extrémité du levier 38 qui, comme cela a été dit, est muni d'une roulette.A lever 39 is articulated at its end at 40 on the rod 31 and at its other end, it rests by means of the knurled screw 40 on the end of the lever 38 which, as has been said, is provided a roulette.

Le levier 39 est susceptible de basculer autour d'un point 42 solidaire d'une platine 43 que l'on peut fixer dans des positions différentes parallèlement à la direction du levier 39.The lever 39 is capable of tilting around a point 42 secured to a plate 43 which can be fixed in different positions parallel to the direction of the lever 39.

Grâce au réglage de la platine 43 il est donc possible de faire varier le rapport des bras de levier entre le point d'articulation 42 du levier 39 et ses extrémités 40 solidaire du galet palpeur 26 et 41 solidaire du tiroir 37.By adjusting the plate 43 it is therefore possible to vary the ratio of the lever arms between the articulation point 42 of the lever 39 and its ends 40 secured to the feeler roller 26 and 41 secured to the drawer 37.

On voit que conformément à l'invention, lorsque le palpeur 26 détecte une plus grande épaisseur de l'acier à béton 1, le tiroir 37 se trouve déplacé vers le bas, ce qui provoque l'envoi de fluide hydraulique au-dessus du piston, de telle sorte que le cylindre 32 se soulève, ce qui entraîne un soulèvement correspondant du galet dresseur 24.It can be seen that, according to the invention, when the probe 26 detects a greater thickness of the concrete steel 1, the slide 37 is moved downwards, which causes the hydraulic fluid to be sent above the piston , so that the cylinder 32 is raised, which causes a corresponding lifting of the dressing roller 24.

Il en va inversement lorsque le galet palpeur 26 se déplace vers le bas à la suite d'une diminution du diamètre de l'acier à béton.The reverse is true when the feeler roller 26 moves downwards following a reduction in the diameter of the concrete steel.

La vis à tête moletée 41 permet pour une position donnée du galet palpeur 26 qui correspond au diamètre nominal du produit à dresser, de positionner le tiroir 37 de manière à obtenir le réglage de base du galet presseur 24 qui permet une sortie rectiligne du produit à dresser 1.The knurled screw 41 allows, for a given position of the feeler roller 26 which corresponds to the nominal diameter of the product to be straightened, to position the drawer 37 so as to obtain the basic setting of the pressure roller 24 which allows a straight output of the product to draw up 1.

On comprend également qu'en déplaçant latéralement la platine 43 on modifie la longueur des bras de leviers qui relient le tiroir hydraulique 37 au galet palpeur 26 et en conséquence le rapport des déplacements du tiroir 37 et du galet palpeur 26.It is also understood that by moving the plate 43 laterally, the length of the lever arms which connect the hydraulic slide 37 to the feeler roller 26 is modified, and consequently the ratio of movements of the drawer 37 and the feeler roller 26.

On peut de cette manière faire en sorte que malgré les variations de diamètre du produit à dresser 1 on obtienne un dressage satisfaisant par le déplacement adéquat du galet dresseur 24.In this way, it is possible to ensure that, despite variations in the diameter of the product to be dressed 1, a satisfactory dressing is obtained by the adequate movement of the dressing roller 24.

Conformément à un mode de réalisation préféré de l'invention, le dispositif palpeur se trouve situé en amont du galet dresseur 24 qui est positionné conformément à l'invention.According to a preferred embodiment of the invention, the feeler device is located upstream of the dresser roller 24 which is positioned in accordance with the invention.

De même, conformément à un mode de réalisation préféré de l'invention, les pertes de charge dans le circuit hydraulique sont déterminées de telle manière que le temps de réponse du cylindre hydraulique 32 sous l'action du tiroir distributeur 37 corresponde au temps que met le produit à dresser 1 pour parcourir la distance séparant le galet palpeur 26 du galet dresseur 24.Similarly, in accordance with a preferred embodiment of the invention, the pressure losses in the hydraulic circuit are determined in such a way that the response time of the hydraulic cylinder 32 under the action of the distributor slide 37 corresponds to the time that it takes the product to be straightened 1 to cover the distance separating the feeler roller 26 from the dresser roller 24.

Grâce à cette caractéristique de l'invention, on peut réaliser un dressage parfait de produits tels que les aciers à béton qui présentent des profils laminés et qui connaissent de ce fait des variations de diamètre qui sont à la fois rapides et importantes.Thanks to this characteristic of the invention, it is possible to achieve a perfect dressing of products such as concrete steels which have rolled profiles and which therefore experience variations in diameter which are both rapid and significant.

Grâce aux caractéristiques de l'invention qui viennent d'être décrites ci-dessus, l'on obtient un dressage parfait du fait que la position du galet dresseur 24 correspond toujours au diamètre du fil qui est situé en fin de dressage entre les galets 23, 24 et 25.Thanks to the characteristics of the invention which have just been described above, a perfect dressing is obtained because the position of the dressing roller 24 always corresponds to the diameter of the wire which is located at the end of dressing between the rollers 23 , 24 and 25.

On a représenté sur la figure 3 un autre mode de réalisation de l'invention qui fait appel à un dresseur du type décrit dans la demande de brevet français N° 90 05569 du 3 Mai 1990.FIG. 3 shows another embodiment of the invention which uses a blocker of the type described in French patent application No. 90 05569 of May 3, 1990.

Un dresseur de ce type représenté sur la figure 3 comporte quatre plateaux A, B, C, D qui sont susceptibles d'être déplacés parallèlement entre eux grâce au fait qu'ils sont reliés par des biellettes 44 à un levier 45 lui-même articulé sur le plateau C. Un de ces plateaux est fixe.A blocker of this type shown in FIG. 3 comprises four plates A, B, C, D which are capable of being displaced in parallel with each other thanks to the fact that they are connected by connecting rods 44 to a lever 45 which is itself articulated on tray C. One of these trays is fixed.

Les galets dresseurs 20, 21, 22, 23, 24, 25 sont solidaires de bras 46 articulés sur un plateau et reliés par une biellette 47 au plateau voisin.The dresser rollers 20, 21, 22, 23, 24, 25 are integral with arms 46 articulated on a plate and connected by a link 47 to the neighboring plate.

Les galets dresseurs sont fixés sur les leviers 46 au quart de la distance existant entre le point d'articulation des leviers 46 sur leur plateau et leur point d'articulation sur leur biellette 47.The blocking rollers are fixed on the levers 46 at a quarter of the distance existing between the point of articulation of the levers 46 on their plate and their point of articulation on their link 47.

On modifie la distance entre les plateaux en agissant sur le levier 45 grâce à la tige filetée 48 qui s'engage dans un écrou 49 libre en rotation mais maintenu axialement en position, cet écrou étant entraîné par un moteur, par exemple hydraulique 50, par l'intermédiaire d'un train d'engrenage 51.The distance between the plates is modified by acting on the lever 45 by means of the threaded rod 48 which engages in a nut 49 which is free to rotate but which is kept axially in position, this nut being driven by a motor, for example hydraulic 50, by means of a gear train 51.

Conformément à cette disposition des galets dresseurs, toute modification de la position angulaire du levier 45 entraîne un déplacement des galets dresseurs 20, 21, 22, 23, 24, 25 qui restent équidistants entre-eux et qui s'approchent ou s'écartent tous de la même manière de l'axe du produit à dresser 1.In accordance with this arrangement of the dressing rollers, any modification of the angular position of the lever 45 results in a displacement of the dressing rollers 20, 21, 22, 23, 24, 25 which remain equidistant from each other and which all approach or move apart in the same way of the axis of the product to be straightened 1.

Conformément à l'invention, on dispose un levier 52 articulé sur le levier 46 qui supporte le galet 23. L'extrémité inférieure de ce levier 52 porte un galet palpeur 26 qui est situé au droit du galet dresseur 23 contre lequel il est repoussé par l'action du ressort de rappel 8 qui réunit le levier 52 au plateau D.According to the invention, there is a lever 52 articulated on the lever 46 which supports the roller 23. The lower end of this lever 52 carries a feeler roller 26 which is located in line with the dresser roller 23 against which it is pushed back by the action of the return spring 8 which joins the lever 52 to the plate D.

Le plateau D supporte un tiroir hydraulique 37 qui est relié par une tige 53 en un point de l'extrémité supérieure du levier 52.The plate D supports a hydraulic slide 37 which is connected by a rod 53 at a point on the upper end of the lever 52.

Un volant 54 agissant sur deux filetages à pas opposés permet de modifier à volonté la longueur de la tige 53 et d'adapter la position du galet palpeur 26 de manière à ce que pour le diamètre nominal du produit à dresser et la position correspondante des galets dresseurs, le tiroir distributeur 37 soit dans une position neutre quine modifie pas l'écartement entre les plateaux A, B, C, D.A flywheel 54 acting on two threads with opposite pitch makes it possible to modify the length of the rod 53 at will and to adapt the position of the feeler roller 26 so that for the nominal diameter of the product to be straightened and the corresponding position of the rollers dressers, the distributor drawer 37 is in a neutral position which does not modify the spacing between the plates A, B, C, D.

Par ailleurs, l'extrémité supérieure du levier 52 comporte une série d'orifices 55 à chacun desquels il est possible de raccorder l'extrémité gauche de la tige 53 de manière à modifier l'importance du déplacement du tiroir hydraulique 37 pour une variation donnée du diamètre du produit à dresser 1 tel que mesuré par le galet palpeur 26.Furthermore, the upper end of the lever 52 has a series of orifices 55 to each of which it is possible to connect the left end of the rod 53 so as to modify the amount of displacement of the hydraulic slide 37 for a given variation. the diameter of the product to be straightened 1 as measured by the feeler roller 26.

Comme on l'a compris, le distributeur hydraulique 37 est utilisé pour alimenter le moteur hydraulique 50 représenté schématiquement sur le dessin.As will be understood, the hydraulic distributor 37 is used to supply the hydraulic motor 50 shown diagrammatically in the drawing.

Lorsque le galet palpeur 26 détecte une augmentation du diamètre du produit à dresser 1, le levier 52 repousse vers la droite la tige 53 qui, grâce au tiroir hydraulique 37 provoque la rotation du moteur hydraulique 50 et par l'intermédiaire du train d'engrenages 51 la rotation de l'écrou 49 qui déplace vers la gauche la tige filetée 48 et l'extrémité du levier 45.When the feeler roller 26 detects an increase in the diameter of the product to be straightened 1, the lever 52 pushes the rod 53 to the right which, thanks to the hydraulic slide 37 causes the hydraulic motor 50 to rotate and via the gear train 51 the rotation of the nut 49 which moves the threaded rod 48 and the end of the lever 45 to the left.

Il en résulte que l'ensemble des galets dresseurs 20, 21, 22, 23, 24, 25 s'écartent de l'axe du produit à dresser en se rapprochant les uns des autres pour prendre une position optimale compte tenu du diamètre du produit à dresser mesuré par le galet palpeur 26.As a result, all of the dressing rollers 20, 21, 22, 23, 24, 25 deviate from the axis of the product to be dressed by moving towards each other to take an optimal position taking into account the diameter of the product. to be measured measured by the feeler roller 26.

Comme dans le mode de réalisation de la figure 2 il est possible de modifier le réglage initial pour un diamètre nominal de produit à dresser en agissant sur le volant 54 qui permet de racourcir ou d'allonger la tige 53.As in the embodiment of FIG. 2, it is possible to modify the initial setting for a nominal diameter of product to be dressed by acting on the hand wheel 54 which makes it possible to shorten or lengthen the rod 53.

De même, le choix d'un des orifices 55 à l'extrémité du levier 52 permet de modifier le rapport d'amplification du déplacement du tiroir hydraulique 37 en fonction des déplacements du galet palpeur 26.Similarly, the choice of one of the orifices 55 at the end of the lever 52 makes it possible to modify the amplification ratio of the movement of the hydraulic slide 37 as a function of the movements of the feeler roller 26.

Conformément à un mode de réalisation préféré de l'invention le temps de réponse de l'asservissement de la position des galets dresseurs à celle du galet palpeur 26 est sensiblement égal au temps mis par le produit à dresser pour aller du galet palpeur 26 à la sortie du dresseur.In accordance with a preferred embodiment of the invention, the response time of the control of the position of the dresser rollers to that of the feeler roller 26 is substantially equal to the time taken by the product to be dressed to go from the feeler roller 26 to the exit from the trainer.

Dans une variante le moteur 50, le train d'engrenage 51 et l'acrou 44 peuvent être remplacés par un vérin par exemple hydraulique.In a variant, the motor 50, the gear train 51 and the nut 44 can be replaced by a hydraulic cylinder, for example.

Le mode de réalisation représenté sur la figure 3 permet de réaliser un dressage parfait de produits tels que les aciers à béton malgré leurs irrégularités et leurs brusques et fréquents changements de diamètre.The embodiment shown in Figure 3 allows for a perfect dressing of products such as concrete steels despite their irregularities and their abrupt and frequent changes in diameter.

Il est bien entendu que les modes de réalisation de l'invention qui ont été décrits pourront recevoir toutes modifications désirables sans sortir pour cela du cadre de l'invention.It is understood that the embodiments of the invention which have been described may receive any desirable modifications without departing from the scope of the invention.

En particulier il est clair que l'invention peut s'appliquer à différents types de dispositifs qui permettent le déplacement des galets dresseurs pour les adpater aux différents diamètres du fil à dresser.In particular, it is clear that the invention can be applied to different types of devices which allow the displacement of the dressing rollers to adapt them to the different diameters of the wire to be dressed.

De même, il va de soi que l'asservissement de la position du ou des galets dresseurs par rapport à l'organe détecteur du diamètre du fil peut être réalisé par tout moyen mécanique, électrique ou hydraulique.Likewise, it goes without saying that the servo-control of the position of the dressing roller (s) relative to the wire diameter detector can be achieved by any mechanical, electrical or hydraulic means.

Claims (15)

Procédé de réglage automatique de la position d'au moins un galet dresseur d'un dresseur à galets en vue d'obtenir le dressage correct d'un produit allongé qui présente des variations de sections, caractérisé par le fait que l'on mesure (6, 7 ; 21, 26 ; 23,26) le diamètre du produit à dresser (1) dans un plan perpendiculaire aux axes des galets dresseurs (20, 21, 22, 23, 24, 25) et qu'en fonction du diamètre ainsi déterminé on provoque le positionnement d'au moins un des galets dresseurs (24 ; 20, 21, 22, 23, 24, 25), ce positionnement correspondant au dressage correct d'un produit allongé dont le diamètre dans le plan de dressage est égal au diamètre mesuré.Method for automatically adjusting the position of at least one dresser roller of a roller dresser in order to obtain the correct dressing of an elongated product which has variations in sections, characterized in that one measures ( 6, 7; 21, 26; 23.26) the diameter of the product to be dressed (1) in a plane perpendicular to the axes of the dressing rollers (20, 21, 22, 23, 24, 25) and that depending on the diameter thus determined, the positioning of at least one of the dressing rollers (24; 20, 21, 22, 23, 24, 25) is caused, this positioning corresponding to the correct dressing of an elongated product whose diameter in the dressing plane is equal to the measured diameter. Procédé selon la revendication 1, caractérisé par le fait que l'on mesure le diamètre du produit allongé (1) en amont d'au moins un groupe de galets qui participent au dressage dans le plan considéré.Method according to claim 1, characterized in that the diameter of the elongated product (1) is measured upstream of at least one group of rollers which participate in the dressing in the plane considered. Procédé selon l'une quelconque des revendications précédentes, caractérisé par le fait que l'on détermine le temps de réponse du dispositif de positionnement du ou des galets en fonction du diamètre du produit à dresser, de manière à ce que ce temps de réponse corresponde sensiblement à la durée du trajet du produit à dresser entre l'endroit où son diamètre est mesuré et l'endroit où le positionnement du galet dresseur le plus en aval est effectué selon l'invention.Method according to any one of the preceding claims, characterized in that the response time of the positioning device of the roller (s) is determined as a function of the diameter of the product to be dressed, so that this response time corresponds approximately the duration of the journey of the product to be dressed between the place where its diameter is measured and the place where the positioning of the dressing roller most downstream is carried out according to the invention. Dispositif de réglage automatique de la position d'au moins un galet dresseur d'un dresseur à galets pour obtenir la rectitude du produit à dresser malgré les variations du diamètre de ce dernier, dispositif caractérisé par le fait qu'il comporte en combinaison : un dispositif palpeur (6, 7; 21,26 ; 23,26) pour déterminer le diamètre du produit à dresser (1) dans le plan de dressage; un moyen (32 ; 44, 45) pour modifier le positionnement d'au moins un des galets dresseurs; et un dispositif d'asservissement (31, 39, 38, 37, 32; 52, 53, 37, 50, 51, 49, 45, 44) permettant de modifier la position du ou des galets dresseurs en fonction du diamètre du produit à dresser mesuré par le dispositif palpeur.Device for automatically adjusting the position of at least one dresser roller of a roller dresser to obtain the straightness of the product to be dressed despite variations in the diameter of the latter, device characterized in that it comprises in combination: a feeler device (6, 7; 21.26; 23.26) for determining the diameter of the product to be dressed (1) in the dressing plane; means (32; 44, 45) for modifying the positioning of at least one of the dressing rollers; and a servo device (31, 39, 38, 37, 32; 52, 53, 37, 50, 51, 49, 45, 44) allowing the position of the dressing roller (s) to be modified as a function of the diameter of the product to be straightening measured by the feeler device. Dispositif selon la revendication 4 caractérisé par le fait que le dispositif palpeur est situé en amont du dresseur.Device according to Claim 4, characterized in that the feeler device is located upstream of the dresser. Dispositif selon la revendication 4, caractérisé par le fait que le dispositif palpeur est disposé entre les galets dresseurs, mais en amont d'au moins un des galets dresseurs dont la position est automatiquement réglée selon l'invention.Device according to claim 4, characterized in that the feeler device is arranged between the dressing rollers, but upstream of at least one of the dressing rollers whose position is automatically adjusted according to the invention. Dispositif selon l'une quelconque des revendications 4 à 6, caractérisé par le fait que l'organe de palpage est constitué par deux galets (6, 7) qui prennent appui de part et d'autre du produit à dresser.Device according to any one of Claims 4 to 6, characterized in that the feeler member consists of two rollers (6, 7) which bear on either side of the product to be dressed. Dispositif selon l'une quelconque des revendications 4 à 6, caractérisé par le fait que le galet palpeur (26) prend appui sur le produit à dresser en face d'un galet dresseur (21, 23).Device according to any one of Claims 4 to 6, characterized in that the feeler roller (26) bears on the product to be dressed in front of a dresser roller (21, 23). Dispositif selon l'une quelconque des revendications 7 et 8, caractérisé par le fait que le galet palpeur a une section en V ouverte selon un angle d'environ 100 à 120°.Device according to either of Claims 7 and 8, characterized in that the feeler roller has a V-shaped section open at an angle of approximately 100 to 120 °. Dispositif selon l'une quelconque des revendications précédentes, caractérisé par le fait qu'il permet le préréglage du dresseur pour un produit à dresser ayant un diamètre donné, en agissant sur le réglage du dispositif d'asservissement qui relie le dispositif palpeur au(x) galet(s) de dressage dont la position est modifiable.Device according to any one of the preceding claims, characterized in that it allows the presetting of the dresser for a dressing product having a given diameter, by acting on the adjustment of the servo device which connects the feeler device to (x ) dressing roller (s) whose position can be changed. Dispositif selon l'une quelconque des revendications 4 à 10, caractérisé par le fait qu'il permet de déterminer les variations de la position de préréglage du ou des galets règlables en fonction de la variation de diamètre du produit à dresser en agissant sur le réglage du dispositif d'asservissement.Device according to any one of Claims 4 to 10, characterized in that it makes it possible to determine the variations in the preset position of the adjustable roller (s) as a function of the variation in diameter of the product to be dressed by acting on the adjustment of the servo device. Dispositif selon l'une quelconque des revendications 4 à 11, caractérisé par le fait que le temps de réponse du positionnement du ou des galets dresseurs à la position de l'organe palpeur est sensiblement égale au temps que met le produit à dresser pour parcourir la distance entre le dispositif palpeur et le galet le plus en aval dont la position est réglée conformément à l'invention.Device according to any one of Claims 4 to 11, characterized in that the response time of the positioning of the dressing roller (s) to the position of the feeler member is substantially equal to the time that the product to be dressed takes to cover the distance between the feeler device and the most downstream roller, the position of which is adjusted in accordance with the invention. Dispositif selon l'une quelconque des revendications 4 à 12, caractérisé par le fait que le ou les galets dont la position est modifiée en fonction de la position du diamètre du produit à dresser se situent parmi les trois derniers galets disposés en aval du dresseur.Device according to any one of Claims 4 to 12, characterized in that the roller or rollers, the position of which is modified as a function of the position of the diameter of the product to be straightened, are located among the last three rollers disposed downstream of the straightener. Dispositif selon l'une quelconque des revendications 4 à 12, caractérisé par le fait que la totalité des galets du dresseur sont positionnés en fonction du diamètre du fil à dresser.Device according to any one of Claims 4 to 12, characterized in that the totality of the rollers of the straightener are positioned as a function of the diameter of the wire to be straightened. Dispositif selon l'une quelconque des revendications 4 à 14, caractérisé par le fait que le dispositif d'asservissement entre le palpeur qui détermine le diamètre du fil et le ou les galets dresseurs qui sont déplaçables comprend un moyen hydraulique.Device according to any one of Claims 4 to 14, characterized in that the servo-device between the probe which determines the diameter of the wire and the one or more rollers which are displaceable comprises hydraulic means.
EP91401318A 1990-05-22 1991-05-22 Procedure and device for the automatic control of straightening rollers Expired - Lifetime EP0459869B1 (en)

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FR9006371A FR2662379B1 (en) 1990-05-22 1990-05-22 METHOD AND DEVICE FOR AUTOMATIC ADJUSTMENT OF ROLLER DRESSERS.
FR9006371 1990-05-22

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EP0459869A1 true EP0459869A1 (en) 1991-12-04
EP0459869B1 EP0459869B1 (en) 1995-01-11

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AT (1) ATE116879T1 (en)
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CN105537463B (en) * 2016-01-25 2017-12-26 宁波新州焊接设备有限公司 A kind of bar straightening drum apparatus
CN109014768A (en) * 2018-08-01 2018-12-18 成都飞机工业（集团）有限责任公司 For the length direction not means for correcting of uniform thickness constitutional detail and its bearing calibration

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DE2319170A1 (en) * 1972-04-19 1973-10-31 Kunzewskij Igolno Plastinnyj S DEVICE FOR ALIGNMENT OF COMPONENT PRODUCTS WITH VARIABLE CROSS-SECTION PROFILES
US4719781A (en) * 1986-08-07 1988-01-19 Jean Cloup Device for straightening metal wires by means of a plurality of rollers

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DE1752406A1 (en) * 1968-05-21 1971-09-02 Masch Und Bohrgeraete Fabrik Method and device for straightening material on a roller straightening machine
DE2319170A1 (en) * 1972-04-19 1973-10-31 Kunzewskij Igolno Plastinnyj S DEVICE FOR ALIGNMENT OF COMPONENT PRODUCTS WITH VARIABLE CROSS-SECTION PROFILES
US4719781A (en) * 1986-08-07 1988-01-19 Jean Cloup Device for straightening metal wires by means of a plurality of rollers

Cited By (14)

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Publication number Priority date Publication date Assignee Title
EP0636433A1 (en) * 1993-07-29 1995-02-01 MEYER, ROTH &amp; PASTOR Maschinenfabrik GmbH Straightening machine for rod- or striplike material
CN100374226C (en) * 2003-09-25 2008-03-12 张光伟 Method for straightening hot rolled reinforcing steel bar having ribs and deflecting roller
US8136215B2 (en) 2006-06-19 2012-03-20 Siemens Aktiengesellschaft Uncoiling device
WO2007147721A1 (en) * 2006-06-19 2007-12-27 Siemens Aktiengesellschaft Unwinding device
ITBO20100083A1 (en) * 2010-02-17 2011-08-18 Schnell Spa METHOD AND EQUIPMENT FOR STRAIGHTENING IRON AND SIMILAR ROUNDS
WO2011101763A2 (en) 2010-02-17 2011-08-25 Schnell S.P.A. Method and apparatus for straightening iron rods and the like
WO2011101763A3 (en) * 2010-02-17 2013-03-07 Schnell S.P.A. Method and apparatus for straightening iron rods and the like
WO2012016998A1 (en) 2010-08-04 2012-02-09 Schnell S.P.A. Method and apparatus for correcting twist stresses in metal rods
US11072009B2 (en) 2016-04-22 2021-07-27 Schnell S.P.A. Method for automatically adjusting the straightening of metal elements of elongated shape and apparatus for straightening the same elements
JP2019217550A (en) * 2018-06-14 2019-12-26 建科機械（天津）股▲フン▼有限公司 Correction device
CN112912187A (en) * 2018-10-31 2021-06-04 施洛伊尼格股份公司 Straightening device for a cable processing machine and method for operating a straightening mechanism
CN114556727A (en) * 2019-10-11 2022-05-27 新明和工业株式会社 Wire correction device, wire processing device provided with same, and wire correction method
CN114556727B (en) * 2019-10-11 2024-02-09 新明和工业株式会社 Wire straightening device, wire processing device provided with same, and wire straightening method
CN112475118A (en) * 2020-11-27 2021-03-12 安徽迪那通电线有限公司 Automatic straightening machine for wire production

Also Published As

Publication number Publication date
ATE116879T1 (en) 1995-01-15
EP0459869B1 (en) 1995-01-11
FR2662379A1 (en) 1991-11-29
FR2662379B1 (en) 1992-09-04
DE69106591D1 (en) 1995-02-23

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