EP2205369A1 - Device for inspecting a metal strip - Google Patents

Device for inspecting a metal strip

Info

Publication number
EP2205369A1
EP2205369A1 EP08837906A EP08837906A EP2205369A1 EP 2205369 A1 EP2205369 A1 EP 2205369A1 EP 08837906 A EP08837906 A EP 08837906A EP 08837906 A EP08837906 A EP 08837906A EP 2205369 A1 EP2205369 A1 EP 2205369A1
Authority
EP
European Patent Office
Prior art keywords
strip
winding
mandrel
sample
conveying
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.)
Granted
Application number
EP08837906A
Other languages
German (de)
French (fr)
Other versions
EP2205369B1 (en
Inventor
Stanislas Mauuary
Bernard Rossigneux
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.)
Clecim SAS
Original Assignee
Siemens VAI Metals Technologies SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens VAI Metals Technologies SAS filed Critical Siemens VAI Metals Technologies SAS
Publication of EP2205369A1 publication Critical patent/EP2205369A1/en
Application granted granted Critical
Publication of EP2205369B1 publication Critical patent/EP2205369B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • 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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
    • B21C47/245—Devices for the replacement of full reels by empty reels or vice versa, without considerable loss of time
    • 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
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/04—Lifting or lowering work for conveying purposes, e.g. tilting tables arranged immediately in front of or behind the pass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
    • B21B41/12—Arrangements of interest only with respect to provision for indicating or controlling operations

Definitions

  • the invention relates to a device for inspecting a metal strip at the output of an on-line processing facility.
  • a metal strip In an on-line processing plant, in particular a rolling mill, a metal strip must be wound in a reel, at the outlet of the processing section, so as to be easily transported to another part of the installation or any other place of use.
  • winding machines comprising a mandrel rotatably mounted on a frame around an axis orthogonal to the longitudinal axis of travel of the strip and on which a torque is applied to wind the strip with a force of traction necessary to the rolling process and also allowing to ensure the application of the turns on one another.
  • WO 2006/051239 describes an arrangement of this type.
  • the band is cut by a shear placed at the outlet of the treatment section to allow the evacuation of the wound coil and the head of the strip being processed can immediately be directed to the other mandrel already in the first winding start position.
  • a metal strip such as a sheet
  • flatness defects may occur.
  • a coil can be removed from the installation from time to time and placed on a reel to unroll the length of the strip necessary for the inspection.
  • Such devices are heavy and expensive. In addition, they allow to inspect only one side of the band.
  • JP-A-2000-254725 describes a device of this type comprising, at the exit of a rolling installation, a carousel type winder and an inspection table carrying several pairs of pinch rollers. which can rotate 180 ° simultaneously around a lateral axis. A shear placed downstream of the last cage thus makes it possible to cut a sample which is held between the different pairs of rollers so as to first inspect the upper face, the sample being then returned by rotation of 180 ° pinch rollers, to inspect the underside.
  • the document WO 2006/051239 describes another arrangement making it possible to avoid taking support on a table. In this case, in fact, the sample is stretched between two grippers respectively mounted on two rotating plates spaced longitudinally, and can rotate simultaneously about a longitudinal axis, to return the sample.
  • each winder must be equipped with a wrapper to facilitate the start of winding, and a switch for either directing the sample to the inspection device, or guide the tape head to the mandrel.
  • a carousel winder of the type described in document JP-A-2000-254725 makes it possible to use a single switch and a single wrapper for the two mandrels that successively come into the winding start position.
  • it must be directed accurately to the mandrel, by means of the switching device placed downstream of the shear. It is therefore necessary to exert a certain bending force on the strip to direct it towards the mandrel placed below the plane of travel. For this, we can pass the band between two rollers movable transversely, or push the tape head to the mandrel by means of a pusher roller actuated by a jack.
  • a guiding device comprising, in known manner, two inclined plates placed on either side of the strip and forming a guiding chute converging towards the mandrel. Furthermore, after engagement on the mandrel of the head of the strip, it is wound on a few turns then the rotation of the frame is controlled to bring the mandrel into its winding position, and replace it with the other mandrel in the winding start position.
  • the strip In this second position, diametrically opposed, the strip must be subjected to a relatively large tensile force and directed towards a deflector roll placed in the plane of travel, above the winder.
  • the subject of the invention is a new provision making it possible to solve all these problems while avoiding such drawbacks.
  • the invention therefore generally relates to a device for inspecting a metal strip at the outlet of a processing installation successively comprising, along a running direction of the strip, a processing section. , a shear, a carousel type winder having at least two winding mandrels mounted on a rotating frame, means for guiding the strip, after shearing, to the mandrel in the winding start position and a winding device.
  • inspection comprising means for conveying a sample taken by shearing the strip towards an inspection table extending downstream of the coiler in a substantially horizontal plane.
  • the mandrel in the winding start position is placed substantially at a plane of travel of the strip downstream of the shear, while the mandrel in the end winding position is placed at above said plane of travel so that the tensile force applied by the belt is always directed downwards, and the means for conveying the sample between the shear and the inspection table are formed on at least one guide table tilted upwards by an angle sufficient to pass over the coil at any moment of the winding and whatever the diameter of the coil.
  • the inspection table is placed above the plane of travel of the strip downstream of the shear, at a distance from said plane greater than the maximum radius of a coil at the end of winding, increased by distance between the axis of rotation of the mandrel and the plane of scrolling.
  • the conveying means are arranged along a lower face of the inclined guide table, facing towards the strip running plane and advantageously comprise means for applying the sample. on said lower face, with the possibility of longitudinal displacement.
  • these means of conveying the sample comprise an endless belt extending between two spaced apart rolls, between the upstream end and a downstream end of the guide table and provided, advantageously, magnetic means for applying the sample to the carpet.
  • the guide table carrying the sample conveying means is articulated, at an upstream end, about an axis orthogonal to the direction of travel and extends along an inclined plane passing above the coil in winding end position, to a downstream end placed substantially at the axis of said coil, above it.
  • the guide table may be provided, at its upstream end, with a baffle roll centered on the axis of articulation of the frame and on which the sample taken from the strip is applied, at the exit of the shears.
  • the guide table is articulated about an axis orthogonal to the direction of travel, and is supported on the coil in end winding position, by means of a roller.
  • the device comprises a transfer table provided with means for longitudinal conveying of the sample, and extending between a downstream end of the inclined guide table and an upstream end of the inspection table. the upstream end of this transfer table being placed at an intermediate level between the downstream end of the guide table and the coil in end winding position.
  • the switching device placed downstream of the shear comprises a plate hinged about an axis orthogonal to the running direction of the strip and means for orienting the plate between a substantially horizontal conveying position. of the strip towards the mandrel in the starting position and an upwardly inclined position, of connection with an upstream end of the means of conveying the sample.
  • this switching plate is articulated about an axis placed in its central part, substantially at the upstream end of the conveying means, so as to comprise, in the inclined position of the plate, a downstream portion which comes substantially in contact with said conveying means and an upstream portion which deviates downwards for the passage of the sample.
  • Figure 1 is a schematic overview of an inspection device placed at the output of a strip processing line, with a switch in the guiding position of the strip towards the mandrel of a carrousel winder.
  • Figure 2 is an overall view of the device with a switch in guiding position of the sample, and for a large diameter spool.
  • Figure 3 shows the entire device with a switch in the guide position of the sample, and for a small diameter coil.
  • FIG. 1 there is shown diagrammatically an inspection device placed at the outlet of an on-line processing plant of metal sheets, downstream from a treatment section A, not shown, for example a cold rolling plant. comprising several successive cages operating in tandem.
  • the output section 1 of the installation may comprise successively, in the direction of travel of the band M, that is to say from right to left on the figure, a deflector roll 11 for guiding the band M to a shear shear 12, means for driving the band, for example a pair of nip rollers 13 mounted on a frame 12 and rotated, a Flying shear 14 of known type for cutting the band parade and a winder 2 for winding in the coil of the band M after rolling or other treatment.
  • this winder 2 is advantageously of the carousel type comprising two diametrically opposite mandrels 21, 21 'carried by a not shown frame, drum-shaped, rotatably mounted on a support frame 22, about a horizontal axis 20, orthogonal to the running direction of the strip M.
  • Each mandrel 21, 21 ' is provided, in a known manner, with not shown means for engaging and clamping the tape head and can be rotated around its head.
  • the winder 2 is equipped with a single wrapper 25 comprising at least two guide arms 26, 26 'determining a bending of the band for winding the first turns on the mandrel and this wrapper is mounted on a frame movable between the engagement position shown in the drawings, for which said guide arms 24, 24 'surround the mandrel 21, and a spaced apart position for rotating the frame rotating about its axis 20.
  • the band M (indicated in phantom) is driven by the nip rolls 13 and its head is engaged on a first mandrel placed in its first position E1 winding start.
  • the frame is rotated so as to bring the first mandrel into a second position E2 diametrically opposite, the second mandrel then coming into the first position E1.
  • the winding of the strip continues in this second position E2, until a coil 3 having a diameter d is obtained.
  • the band is subjected to a tangential force T.
  • the band M is cut by the shear 14 and the spool 3 can be lowered on a handling trolley 24, in order to to be evacuated.
  • Articulated arms 31 make it possible to maintain the wound strip before it is taken over by the carriage 24.
  • the head of the new strip has been directed towards the mandrel 21 located in the first position E1 of the beginning of 'winding.
  • the carousel winder is placed in a pit, below the strip travel plane and it is therefore necessary to apply a bending force on the head of the machine to precisely direct it towards the mandrel of the winder.
  • the mandrel 21 in the winding start position is placed substantially at the level of the horizontal plane P of the strip downstream of the shear 14, the axis 20 of rotation of the rotating frame of the winder being placed above this plane.
  • an essential advantage of the invention lies in the fact that, after cutting, the head of the new band, driven by the nip rollers 13, naturally moves towards the mandrel 21 which is substantially at the level of the scroll plane, and can therefore easily engage in the clamping means provided on the mandrel 21. It is therefore sufficient, to direct the strip towards the mandrel 21, to place, between the latter and the shear 14, a substantially horizontal guide plate 4 , consisting, for example of a belt conveyor comprising an endless belt 41 stretched between two rollers 42, 42 '.
  • the second mandrel 21 'placed in the second diametrically opposed position of the end of winding E2 is at a relatively high height above In this way, during the rotation of the rotating frame for the passage of the mandrel in this position E2 and until the end of the winding of the coil 3, the strip follows an inclined path of a angle (a) relative to the scroll plane P and the tensile force T applied to the strip is directed permanently downwards.
  • the inspection table 5 on which a sample of the strip to be inspected is to be placed is placed clearly above the scroll plane P and not, as before, substantially at this plane. . Therefore, to convey the strip sample from the shear 14 to the inspection table 16, according to the invention, conveying means 6 are used passing over the coil 3.
  • these conveying means 6 comprise a guide table 61 forming a plate inclined upwards so as to pass over the coil 3 at the end of winding and carrying an endless belt 62 stretched between two rollers apart, respectively an upstream roller 63 placed a little above the plane P scrolling of the strip and a downstream roll 63 'placed a little downstream of the vertical plane Q passing through the axis 23' of the mandrel 21 'in the end winding position E2.
  • this endless belt 62 is of the magnetic type comprising a series of magnets 64 interposed between the two strands of the endless belt 62 and this latter is formed on the lower face of the guide table 61, turned towards the plane scroll P and the winder 2.
  • the plate 6 is articulated, at its lower end, about an axis 60 orthogonal to the direction of travel and is supported, at its upper end, on the outer face 32 of the coil 3, by means of a roller 65.
  • this roller is coated with a material that does not risk deteriorating the surface quality of the band and used, conventionally, for the various deflector rollers for guiding the band.
  • the weight of the plate carrying the guide belt 6 is compensated by a jack 67 articulated on the frame C of the installation.
  • the guide table 6 is provided with a baffle roller 66 rotatably mounted about the hinge axis 60 of the plate 61.
  • the device 4 for guiding the band between the shear 14 and the mandrel 21 is used to apply the band sample to the magnetic belt 62, 64 in order to direct it to the inspection table 5.
  • the endless belt 41 is mounted on a tray-shaped frame hinged about an axis 40 and can be oriented by means of a jack 43 whose body bears on the foundation block 15 and whose rod is articulated, about an axis 44, on a support piece secured to the orientable plate 4.
  • the tail of the previous strip is wound on the coil 3 which can be evacuated.
  • the cylinder 43 then rotates the guide plate 4 upwards, in the intermediate position shown in FIG. 2, so that, as soon as the first section of the sample is cut, the head thereof is directed towards the magnetic belt 62 who can then take care of the sample.
  • the plate 4 continues its pivoting until it comes into alignment with the belt 62 in the position shown in FIG. 3 and the shear 14 makes a second cut to separate the sample M1. This is pushed by the pinch rollers 13 and applied to the magnetic belt 62, so as to be driven by it to the inspection table 5, passing over the coil 3.
  • the sample leaving the belt 62 can simply be deposited on the inspection table 5.
  • This is usually made of an endless belt and it is preferable that the upstream end 51 thereof is spaced from the winder 2 and connected to the downstream end 63 'of the guide table 6 by a transfer table 7 also comprising an endless belt 71 mounted on a not shown frame, in the form of a plate and stretched between two separated rollers, respectively an upstream roll 72 placed below the downstream roll 63 'of the guide table 6 and a downstream roll 72' placed next to the upstream roll 51 of the inspection table 5.
  • the guide table 6 bears directly, by the roller 65, on the spool 3, in order to follow the variations in diameter thereof.
  • the coil-wound tape length and, therefore, the maximum diameter thereof may vary because, in continuous rolling, it is possible successively to treat sheets of different types and sizes.
  • FIGS. 1 and 2 show a coil 3 of maximum diameter while FIG. 3 shows the arrangement corresponding to a coil 3 of small diameter. It is therefore necessary that the transfer table 7 also follow these variations in diameter.
  • the transfer table 7 is articulated, at its downstream end, about a horizontal axis corresponding, preferably to the axis of rotation of the downstream roller 72 'placed near the upstream roller 51 of the inspection table 5.
  • the transfer table 7 can be oriented by means of a jack 73 so that its upstream end 74 is always placed at an intermediate level between the coil 3 at the end of winding and the downstream end of the table. 6, that is to say the downstream roll 63 'of the magnetic belt 62.
  • the upstream end of the transfer table 7 may be provided with a tapered portion 73 forming a spout. guidance extending below the lower run of the guide table 6 to facilitate passage of the sample to the transfer table 7.
  • the head of the strip is directed directly to the mandrel 21 while remaining in its scroll plane P.
  • the axis of rotation 23 of the mandrel 21 is placed substantially in this plane P, one of the arm 25 of the wrapper extends above the mandrel 21 forming, with the latter, a guide space which is gradually tightened and in which the head of the band naturally engages.
  • the frame of the winder can rotate to bring the mandrel to its position E2, the jack 67 can move the guide table 6 to allow this rotation of the coil during winding.
  • the guide table 7 is lowered until the roller 65 comes into contact with the outer face of the coil.
  • the strip is inclined upwardly at an angle (a) from the baffle roller 66, the tensile force T being directed downwards.
  • the hinge axis 40 thereof is placed in its central part and shifted downwards. as shown in the figures.
  • the endless belt constituting the switching table 4 rotates about its point of tangency with the deflector roller 66 and the upstream roller 42 moves downwards to let the head of the sample M1 which is applied on the underside of the endless belt 61 by the upward movement of the downstream end 42 'of the switch mat 4, as shown in FIG. 3.
  • the sample M1 is thus successively guided by the table 4, the guide table 6 and the transfer table 7 to the inspection table 5, passing over the coiler 2.
  • the raised position thereof eliminates the pit in which it is usually placed, all devices can be placed on the same foundation floor 15. In addition, the evacuation coiled coils 3 'is facilitated.
  • raising the inspection table 5 to a relatively large height above the foundation floor 15 facilitates the establishment of turning mechanisms as described, for example, in WO 2006/051239 or JP 2000 254725, cited above.
  • mandrel 21 is placed in position E1 winding start at a certain height above the floor 15, it is easier to arrange around the mandrel wrappers of any type known to facilitate the engagement of the tape head and the beginning of winding.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

The invention relates to a device for inspecting a metal strip (M), that successively comprises a processing section (A), shears (14), a coiler (2) with at least two coiling mandrels (21, 21') rotating about an axis (20) orthogonal to the running direction in order to alternatively shift each mandrel (21, 21') from a coiling start position (E1) to a coiling end position (E2), a means (4) for guiding the strip (M) after shearing towards the mandrel in the coiling start position (E1), and an inspection device (5) including means for conveying a sample (M1) collected on the strip (M) towards an inspection table (5), characterised in that, when in the coiling start position (E1), the mandrel (21) is located substantially at the level of a running plane (P) of the strip (M) downstream from the shears (14) while, when in the coiling end position (E2), the mandrel (21') is located above said running plane (P) so that the traction force (T) applied by the strip (M) is always directed downwards, and in that the sample conveying means (6) are arranged to pass above the coil (3) at any moment during the winding and independently from the diameter thereof.

Description

8 000877 8000877
L'invention a pour objet un dispositif d'inspection d'une bande métallique à la sortie d'une installation de traitement en ligne.The invention relates to a device for inspecting a metal strip at the output of an on-line processing facility.
Dans une installation de traitement en ligne, en particulier de laminage, d'une bande métallique, celle-ci doit être enroulée en bobine, à la sortie de la section de traitement, pour être facilement transportée vers une autre partie de l'installation ou tout autre lieu d'utilisation.In an on-line processing plant, in particular a rolling mill, a metal strip must be wound in a reel, at the outlet of the processing section, so as to be easily transported to another part of the installation or any other place of use.
On utilise à cet effet des bobineuses comprenant un mandrin monté rotatif sur un châssis autour d'un axe orthogonal à l'axe longitudinal de défilement de la bande et sur lequel est appliqué un couple de rotation permettant d'enrouler la bande avec un effort de traction nécessaire au processus de laminage et permettant, en outre, d'assurer l'application des spires l'une sur l'autre.For this purpose, winding machines comprising a mandrel rotatably mounted on a frame around an axis orthogonal to the longitudinal axis of travel of the strip and on which a torque is applied to wind the strip with a force of traction necessary to the rolling process and also allowing to ensure the application of the turns on one another.
Depuis un certain temps, pour augmenter les capacités de production, de telles installations travaillent en flux continu, la queue d'une bobine en fin de déroulement étant soudée sur la tête de la bobine suivante.For some time, to increase the production capacity, such facilities work in continuous flow, the tail of a coil at the end of unwinding being welded to the head of the next coil.
Pour maintenir la continuité du défilement de la bande dans l'installation de traitement, celle-ci est équipée habituellement, à sa sortie, de deux mandrins d'enroulement qui fonctionnent alternativement.In order to maintain the continuity of the running of the strip in the treatment plant, it is usually equipped, at its output, with two winding mandrels which operate alternately.
De façon classique, on utilise deux bobineuses placées l'une après l'autre dans une fosse ménagée dans le massif de fondation, au-dessous du plan de défilement de la bande.Conventionally, using two winders placed one after the other in a pit formed in the foundation, below the band scrolling plane.
Le document WO 2006/051239, par exemple, décrit une disposition de ce type.WO 2006/051239, for example, describes an arrangement of this type.
Cependant, pour réduire le temps nécessaire au changement de bobine tout en diminuant les frais d'infrastructure et d'équipement, il est avantageux d'utiliser une bobineuse dite «à carrousel» comportant deux mandrins d'enroulement montés sur un châssis en forme de tambour tournant autour d'un axe orthogonal à la direction de défilement afin de placer chaque mandrin, successivement, dans une première position de début d'enroulement puis, par rotation du châssis, dans une seconde position de fin d'enroulement pour laquelle l'autre mandrin vient, à son tour, dans la première position. De la sorte, lorsque la bobine enroulée sur le mandrin placé dans la seconde position a atteint le diamètre maximal voulu, la bande est coupée par une cisaille placée à la sortie de la section de traitement afin de permettre l'évacuation de la bobine enroulée et la tête de la bande en cours de traitement peut immédiatement être dirigée vers l'autre mandrin se trouvant déjà dans la première position de début d'enroulement.However, to reduce the time required for the reel change while reducing the costs of infrastructure and equipment, it is advantageous to use a so-called "carousel" winder with two winding mandrels mounted on a frame in the form of drum rotating about an axis orthogonal to the running direction to place each mandrel, successively, in a first winding start position and then, by rotation of the frame, in a second end winding position for which the another mandrel comes, in turn, in the first position. In this way, when the coil wound on the mandrel placed in the second position has reached the maximum desired diameter, the band is cut by a shear placed at the outlet of the treatment section to allow the evacuation of the wound coil and the head of the strip being processed can immediately be directed to the other mandrel already in the first winding start position.
Par ailleurs, au cours du laminage d'une bande métallique, telle qu'une tôle, des défauts de planéité peuvent apparaître. De même, il peut se produire un marquage de l'une ou l'autre face de la bande, par exemple au contact des cylindres de laminage et ce marquage se répète périodiquement au cours du laminage et se retrouve donc tout au long de la bobine après enroulement de la bande.Moreover, during the rolling of a metal strip, such as a sheet, flatness defects may occur. Similarly, there may be a marking of one or the other face of the strip, for example in contact with the rolling rolls, and this marking repeats periodically during rolling and is therefore found throughout the coil after winding the tape.
Il est donc nécessaire, pour détecter d'éventuels défauts géométriques ou de qualité de surface du produit, d'inspecter régulièrement les tôles qui sortent d'un laminoir, au moins sur une longueur correspondant à la période de répétition du marquage. On peut réaliser une simple inspection visuelle pour les défauts apparents. Actuellement, cependant, on utilise de préférence un procédé dit de pierrage qui consiste à passer sur la tôle posée sur une table horizontale, une pierre spéciale faisant apparaître les défauts.It is therefore necessary, in order to detect any geometrical or surface quality defects of the product, to regularly inspect the sheets coming out of a rolling mill, at least over a length corresponding to the repetition period of the marking. A simple visual inspection can be performed for apparent defects. Currently, however, it is preferred to use a so-called honing process which consists in passing on the sheet placed on a horizontal table, a special stone showing the defects.
Pour réaliser cette inspection, on peut prélever de temps en temps une bobine à la sortie de l'installation et la placer sur une dérouleuse afin de dérouler la longueur de la bande nécessaire pour l'inspection. De tels dispositifs sont lourds et coûteux. De plus, ils ne permettent d'inspecter qu'une seule face de la bande.To carry out this inspection, a coil can be removed from the installation from time to time and placed on a reel to unroll the length of the strip necessary for the inspection. Such devices are heavy and expensive. In addition, they allow to inspect only one side of the band.
On a aussi proposé d'utiliser des dispositifs d'inspection en ligne permettant de contrôler une certaine longueur de tôle prélevée sur la bande et formant un échantillon qui est posé sur une table d'inspection, et que l'on peut ensuite retourner afin d'inspecter l'autre face.It has also been proposed to use in-line inspection devices to control a certain length of sheet metal taken from the web and forming a sample which is placed on an inspection table, and which can then be returned for further processing. inspect the other side.
Le document JP-A-2000-254 725, par exemple, décrit un dispositif de ce type comportant, à la sortie d'une installation de laminage, une bobineuse du type à carrousel et une table d'inspection portant plusieurs paires de rouleaux pinceurs pouvant tourner simultanément de 180° autour d'un axe latéral. Une cisaille placée en aval de la dernière cage permet, ainsi, de couper un échantillon qui est maintenu entre les différentes paires de rouleaux afin d'inspecter tout d'abord la face supérieure, l'échantillon étant, ensuite, retourné par rotation de 180° des rouleaux pinceurs, afin d'inspecter la face inférieure. Le document WO 2006/051239 décrit une autre disposition permettant d'éviter de prendre appui sur une table. Dans ce cas, en effet, l'échantillon est tendu entre deux pinces de serrage montées respectivement sur deux plateaux rotatifs écartés longitudinalement, et pouvant tourner simultanément autour d'un axe longitudinal, afin de retourner l'échantillon.JP-A-2000-254725, for example, describes a device of this type comprising, at the exit of a rolling installation, a carousel type winder and an inspection table carrying several pairs of pinch rollers. which can rotate 180 ° simultaneously around a lateral axis. A shear placed downstream of the last cage thus makes it possible to cut a sample which is held between the different pairs of rollers so as to first inspect the upper face, the sample being then returned by rotation of 180 ° pinch rollers, to inspect the underside. The document WO 2006/051239 describes another arrangement making it possible to avoid taking support on a table. In this case, in fact, the sample is stretched between two grippers respectively mounted on two rotating plates spaced longitudinally, and can rotate simultaneously about a longitudinal axis, to return the sample.
Dans cette disposition, comme indiqué plus haut, on utilise deux bobineuses successives placées dans une fosse. Chaque bobineuse doit donc être équipée d'un enveloppeur pour faciliter le début d'enroulement, et d'un aiguillage permettant, soit de diriger l'échantillon vers le dispositif d'inspection, soit de guider la tête de bande vers le mandrin.In this arrangement, as indicated above, two successive coils are used placed in a pit. Each winder must be equipped with a wrapper to facilitate the start of winding, and a switch for either directing the sample to the inspection device, or guide the tape head to the mandrel.
En revanche, une bobineuse à carrousel du type décrit dans le document JP-A-2000-254725, permet d'utiliser un seul aiguillage et un seul enveloppeur pour les deux mandrins qui viennent successivement dans la position de début d'enroulement. Cependant, pour faciliter l'engagement de la tête de la bande, celle-ci doit être dirigée avec précision vers le mandrin, au moyen du dispositif d'aiguillage placé en aval de la cisaille. Il faut donc exercer un certain effort de flexion sur la bande pour diriger celle-ci vers le mandrin placé en-dessous du plan de défilement. Pour cela, on peut faire passer la bande entre deux rouleaux déplaçables transversalement, ou bien repousser la tête de bande vers le mandrin au moyen d'un rouleau-pousseur actionné par un vérin. On peut aussi utiliser un dispositif de guidage comportant, de façon connue deux plateaux inclinés placés de part et d'autre de la bande et formant une goulotte de guidage convergeant vers le mandrin. Par ailleurs, après engagement sur le mandrin de la tête de la bande, celle-ci est enroulée sur quelques spires puis l'on commande la rotation du châssis pour amener le mandrin dans sa position de bobinage, et le remplacer par l'autre mandrin dans la position de début d'enroulement.On the other hand, a carousel winder of the type described in document JP-A-2000-254725 makes it possible to use a single switch and a single wrapper for the two mandrels that successively come into the winding start position. However, to facilitate the engagement of the head of the strip, it must be directed accurately to the mandrel, by means of the switching device placed downstream of the shear. It is therefore necessary to exert a certain bending force on the strip to direct it towards the mandrel placed below the plane of travel. For this, we can pass the band between two rollers movable transversely, or push the tape head to the mandrel by means of a pusher roller actuated by a jack. It is also possible to use a guiding device comprising, in known manner, two inclined plates placed on either side of the strip and forming a guiding chute converging towards the mandrel. Furthermore, after engagement on the mandrel of the head of the strip, it is wound on a few turns then the rotation of the frame is controlled to bring the mandrel into its winding position, and replace it with the other mandrel in the winding start position.
Dans cette seconde position, diamétralement opposée, la bande doit être soumise à un effort de traction relativement important et dirigé vers un rouleau déflecteur placé dans le plan de défilement, au-dessus de la bobineuse.In this second position, diametrically opposed, the strip must be subjected to a relatively large tensile force and directed towards a deflector roll placed in the plane of travel, above the winder.
Or, on a observé que cet effort de traction dirigé vers le haut avait tendance à soulever le tambour rotatif portant les mandrins, en exerçant un effort sur ses paliers de centrage et sur les moyens de fixation du bâti de support sur le massif de fondation ce qui, à la longue, peut avoir un effet' néfaste sur la tenue du matériel et la qualité de l'enroulement.However, it has been observed that this upward pulling force has a tendency to lift the rotary drum carrying the mandrels, by exerting a force on its centering bearings and on the fixing means of the frame. support on the foundation block which, over time, can affect 'adversely on holding the equipment and the quality of the winding.
L'invention a pour objet une nouvelle disposition permettant de résoudre l'ensemble de ces problèmes en évitant de tels inconvénients. L'invention concerne donc, d'une façon générale, un dispositif d'inspection d'une bande métallique à la sortie d'une installation de traitement comportant successivement, le long d'une direction de défilement de la bande, une section de traitement, une cisaille, une bobineuse du type à carrousel comportant au moins deux mandrins d'enroulement montés sur un châssis tournant, des moyens de guidage de la bande, après cisaillement, vers le mandrin en position de début d'enroulement et un dispositif d'inspection comportant des moyens de convoyage d'un échantillon prélevé par cisaillement de la bande vers une table d'inspection s'étendant en aval de la bobineuse suivant un plan sensiblement horizontal. Conformément à l'invention, le mandrin en position de début d'enroulement est placé sensiblement au niveau d'un plan de défilement de la bande en aval de la cisaille, alors que le mandrin en position de fin d'enroulement est placé au-dessus dudit plan de défilement afin que l'effort de traction appliqué par la bande soit toujours dirigé vers le bas, et les moyens de convoyage de l'échantillon entre la cisaille et la table d'inspection sont ménagés sur au moins une table de guidage inclinée vers le haut d'un angle suffisant pour passer au-dessus de la bobine à tout moment de l'enroulement et quelque soit le diamètre de la bobine.The subject of the invention is a new provision making it possible to solve all these problems while avoiding such drawbacks. The invention therefore generally relates to a device for inspecting a metal strip at the outlet of a processing installation successively comprising, along a running direction of the strip, a processing section. , a shear, a carousel type winder having at least two winding mandrels mounted on a rotating frame, means for guiding the strip, after shearing, to the mandrel in the winding start position and a winding device. inspection comprising means for conveying a sample taken by shearing the strip towards an inspection table extending downstream of the coiler in a substantially horizontal plane. According to the invention, the mandrel in the winding start position is placed substantially at a plane of travel of the strip downstream of the shear, while the mandrel in the end winding position is placed at above said plane of travel so that the tensile force applied by the belt is always directed downwards, and the means for conveying the sample between the shear and the inspection table are formed on at least one guide table tilted upwards by an angle sufficient to pass over the coil at any moment of the winding and whatever the diameter of the coil.
D'autre part, la table d'inspection est placée au-dessus du plan de défilement de la bande en aval de la cisaille, à une distance dudit plan supérieure au rayon maximal d'une bobine en fin d'enroulement, augmenté de la distance entre l'axe de rotation du mandrin et le plan de défilement.On the other hand, the inspection table is placed above the plane of travel of the strip downstream of the shear, at a distance from said plane greater than the maximum radius of a coil at the end of winding, increased by distance between the axis of rotation of the mandrel and the plane of scrolling.
Dans un mode de réalisation préférentiel, les moyens de convoyage sont ménagés le long d'une face inférieure de la table de guidage inclinée, tournée vers le plan de défilement de la bande et comportent, avantageusement, des moyens d'application de l'échantillon sur ladite face inférieure, avec possibilité de déplacement longitudinal.In a preferred embodiment, the conveying means are arranged along a lower face of the inclined guide table, facing towards the strip running plane and advantageously comprise means for applying the sample. on said lower face, with the possibility of longitudinal displacement.
De préférence, ces moyens de convoyage de l'échantillon comportent un tapis sans fin s'étendant entre deux rouleaux écartés, entre l'extrémité amont et une extrémité aval de la table de guidage et muni, avantageusement, de moyens magnétiques d'application de l'échantillon sur le tapis.Preferably, these means of conveying the sample comprise an endless belt extending between two spaced apart rolls, between the upstream end and a downstream end of the guide table and provided, advantageously, magnetic means for applying the sample to the carpet.
Selon une autre caractéristique particulièrement avantageuse, la table de guidage portant les moyens de convoyage de l'échantillon est articulée, à une extrémité amont, autour d'un axe orthogonal à la direction de défilement et s'étend suivant un plan incliné passant au-dessus de la bobine en position de fin d'enroulement, jusqu'à une extrémité aval placée sensiblement au niveau de l'axe de ladite bobine, au-dessus de celle-ci. En outre, la table de guidage peut être munie, à son extrémité amont, d'un rouleau déflecteur centré sur l'axe d'articulation du châssis et sur lequel vient s'appliquer l'échantillon prélevé sur la bande, à la sortie de la cisaille.According to another particularly advantageous characteristic, the guide table carrying the sample conveying means is articulated, at an upstream end, about an axis orthogonal to the direction of travel and extends along an inclined plane passing above the coil in winding end position, to a downstream end placed substantially at the axis of said coil, above it. In addition, the guide table may be provided, at its upstream end, with a baffle roll centered on the axis of articulation of the frame and on which the sample taken from the strip is applied, at the exit of the shears.
De préférence, la table de guidage est articulée autour d'un axe orthogonal à la direction de défilement, et prend appui sur la bobine en position de fin d'enroulement, par l'intermédiaire d'un rouleau. Selon une autre caractéristique préférentielle, le dispositif comprend une table de transfert munie de moyens de convoyage longitudinal de l'échantillon, et s'étendant entre une extrémité aval de la table de guidage inclinée et une extrémité amont de la table d'inspection, l'extrémité amont de cette table de transfert étant placée à un niveau intermédiaire entre l'extrémité aval de la table de guidage et la bobine en position de fin d'enroulement.Preferably, the guide table is articulated about an axis orthogonal to the direction of travel, and is supported on the coil in end winding position, by means of a roller. According to another preferred feature, the device comprises a transfer table provided with means for longitudinal conveying of the sample, and extending between a downstream end of the inclined guide table and an upstream end of the inspection table. the upstream end of this transfer table being placed at an intermediate level between the downstream end of the guide table and the coil in end winding position.
Selon une autre caractéristique préférentielle, le dispositif d'aiguillage placé en aval de la cisaille comprend un plateau articulé autour d'un axe orthogonal à la direction de défilement de la bande et des moyens d'orientation du plateau entre une position sensiblement horizontale de convoyage de la bande vers le mandrin en position de démarrage et une position inclinée vers le haut, de raccordement avec une extrémité amont des moyens de convoyage de l'échantillon.According to another preferred feature, the switching device placed downstream of the shear comprises a plate hinged about an axis orthogonal to the running direction of the strip and means for orienting the plate between a substantially horizontal conveying position. of the strip towards the mandrel in the starting position and an upwardly inclined position, of connection with an upstream end of the means of conveying the sample.
Avantageusement, ce plateau d'aiguillage est articulé autour d'un axe placé dans sa partie centrale, sensiblement au niveau de l'extrémité amont du moyen de convoyage, de façon à comporter, dans la position inclinée du plateau, une partie aval qui vient sensiblement au contact desdits moyens de convoyage et une partie amont qui s'écarte vers le bas pour le passage de l'échantillon. D'autres caractéristiques avantageuses apparaîtront dans la description qui va suivre d'un mode de réalisation particulier, donné à titre d'exemple et représenté sur les dessins annexés.Advantageously, this switching plate is articulated about an axis placed in its central part, substantially at the upstream end of the conveying means, so as to comprise, in the inclined position of the plate, a downstream portion which comes substantially in contact with said conveying means and an upstream portion which deviates downwards for the passage of the sample. Other advantageous features will appear in the following description of a particular embodiment, given by way of example and shown in the accompanying drawings.
La figure 1 est une vue d'ensemble schématique d'un dispositif d'inspection placé à la sortie d'une ligne de traitement de bande, avec un aiguillage en position de guidage de la bande vers le mandrin d'une bobineuse à carrrousel.Figure 1 is a schematic overview of an inspection device placed at the output of a strip processing line, with a switch in the guiding position of the strip towards the mandrel of a carrousel winder.
La figure 2 est une vue d'ensemble du dispositif avec un aiguillage en position de guidage de l'échantillon, et pour une bobine de grand diamètre. La figure 3 montre l'ensemble du dispositif avec un aiguillage en position de guidage de l'échantillon, et pour une bobine de petit diamètre.Figure 2 is an overall view of the device with a switch in guiding position of the sample, and for a large diameter spool. Figure 3 shows the entire device with a switch in the guide position of the sample, and for a small diameter coil.
Sur les dessins, on a représenté schématiquement un dispositif d'inspection placé à la sortie d'une installation de traitement en ligne de tôles métalliques, en aval d'une section de traitement A non représentée, par exemple, une installation de laminage à froid comportant plusieurs cages successives fonctionnant en tandem.In the drawings, there is shown diagrammatically an inspection device placed at the outlet of an on-line processing plant of metal sheets, downstream from a treatment section A, not shown, for example a cold rolling plant. comprising several successive cages operating in tandem.
Par exemple, dans le mode de réalisation représenté sur les dessins, la section de sortie 1 de l'installation peut comporter successivement, dans le sens de défilement de la bande M, c'est-à-dire de la droite vers la gauche sur la figure, un rouleau déflecteur 11 pour le guidage de la bande M vers une cisaille de rive 12, des moyens d'entraînement de la bande, par exemple une paire de rouleaux-pinceurs 13 montés sur un châssis 12 et entraînés en rotation, une cisaille volante 14 de type connu permettant de couper la bande au défilé et une bobineuse 2 pour l'enroulement en bobine de la bande M après laminage ou autre traitement.For example, in the embodiment shown in the drawings, the output section 1 of the installation may comprise successively, in the direction of travel of the band M, that is to say from right to left on the figure, a deflector roll 11 for guiding the band M to a shear shear 12, means for driving the band, for example a pair of nip rollers 13 mounted on a frame 12 and rotated, a Flying shear 14 of known type for cutting the band parade and a winder 2 for winding in the coil of the band M after rolling or other treatment.
Comme indiqué plus haut, cette bobineuse 2 est avantageusement du type à carrousel comportant deux mandrins diamétralement opposés 21 , 21' portés par un châssis non représenté, en forme de tambour, monté rotatif sur un bâti de support 22, autour d'un axe horizontal 20, orthogonal à la direction de défilement de la bande M. Chaque mandrin 21, 21 ' est muni, de façon connue, de moyens non représentés d'engagement et de pinçage de la tête de bande et peut être entraîné en rotation autour de son axe 23, 23' avec un couple d'entraînement permettant d'appliquer sur la bande un effort de traction T nécessaire, d'une part, au laminage et, d'autre part, suffisant pour assurer un enroulement de la bande en spires jointives. Par ailleurs, de façon connue, la bobineuse 2 est équipée d'un enveloppeur unique 25 comportant au moins deux bras de guidage 26, 26' déterminant un cintrage de la bande pour l'enroulement des premières spires sur le mandrin et cet enveloppeur est monté sur un châssis déplaçable entre la position d'engagement représentée sur les dessins, pour laquelle lesdits bras de guidage 24, 24' entourent le mandrin 21 , et une position écartée permettant la rotation du châssis tournant autour de son axe 20.As indicated above, this winder 2 is advantageously of the carousel type comprising two diametrically opposite mandrels 21, 21 'carried by a not shown frame, drum-shaped, rotatably mounted on a support frame 22, about a horizontal axis 20, orthogonal to the running direction of the strip M. Each mandrel 21, 21 'is provided, in a known manner, with not shown means for engaging and clamping the tape head and can be rotated around its head. 23, 23 'axis with a driving torque for applying to the strip a tensile force T required, on the one hand, rolling and, secondly, sufficient to ensure a winding of the band in contiguous turns . Moreover, in known manner, the winder 2 is equipped with a single wrapper 25 comprising at least two guide arms 26, 26 'determining a bending of the band for winding the first turns on the mandrel and this wrapper is mounted on a frame movable between the engagement position shown in the drawings, for which said guide arms 24, 24 'surround the mandrel 21, and a spaced apart position for rotating the frame rotating about its axis 20.
Au début d'une passe de laminage, la bande M (indiquée en trait mixte) est entraînée par les rouleaux pinceurs 13 et sa tête vient s'engager sur un premier mandrin placé dans sa première position E1 de début d'enroulement. Après engagement de la tête de la bande sur le mandrin et enroulement de quelques spires, on fait tourner le châssis de façon à amener le premier mandrin dans une seconde position E2 diamétralement opposée, le second mandrin venant alors dans la première position E1. L'enroulement de la bande se poursuit dans cette seconde position E2, jusqu'à obtention d'une bobine 3 ayant un diamètre d.At the beginning of a rolling pass, the band M (indicated in phantom) is driven by the nip rolls 13 and its head is engaged on a first mandrel placed in its first position E1 winding start. After engagement of the head of the strip on the mandrel and winding a few turns, the frame is rotated so as to bring the first mandrel into a second position E2 diametrically opposite, the second mandrel then coming into the first position E1. The winding of the strip continues in this second position E2, until a coil 3 having a diameter d is obtained.
Comme indiqué plus haut, pendant tout l'enroulement, la bande est soumise à un effort tangentiel T.As indicated above, during all the winding, the band is subjected to a tangential force T.
Après enroulement sur le mandrin 21 ' de la longueur de bande souhaitée correspondant à un diamètre maximal d de la bobine 3, la bande M est coupée par la cisaille 14 et la bobine 3 peut être descendue sur un chariot de manutention 24, afin d'être évacuée. Des bras articulés 31 permettent de maintenir la bande enroulée avant sa prise en charge par le chariot 24. Cependant, immédiatement après la coupe, la tête de la nouvelle bande a été dirigée vers le mandrin 21 se trouvant dans la première position E1 de début d'enroulement. Comme indiqué plus haut, dans la disposition habituelle décrite, par exemple, dans le document JP-A-2000 254725, la bobineuse à carrousel est placée dans une fosse, au-dessous du plan de défilement de la bande et il est donc nécessaire d'appliquer sur la tête de celle-ci un effort de flexion afin de la diriger avec précision vers le mandrin de la bobineuse.After winding on the mandrel 21 'of the desired strip length corresponding to a maximum diameter d of the spool 3, the band M is cut by the shear 14 and the spool 3 can be lowered on a handling trolley 24, in order to to be evacuated. Articulated arms 31 make it possible to maintain the wound strip before it is taken over by the carriage 24. However, immediately after cutting, the head of the new strip has been directed towards the mandrel 21 located in the first position E1 of the beginning of 'winding. As indicated above, in the usual arrangement described, for example, in JP-A-2000 254725, the carousel winder is placed in a pit, below the strip travel plane and it is therefore necessary to apply a bending force on the head of the machine to precisely direct it towards the mandrel of the winder.
En revanche, dans la disposition selon l'invention, représentée sur les dessins, le mandrin 21 en position de début d'enroulement se trouve placé sensiblement au niveau du plan horizontal P de défilement de la bande en aval de la cisaille 14, l'axe 20 de rotation du châssis tournant de la bobineuse étant placé au-dessus de ce plan.On the other hand, in the arrangement according to the invention, represented in the drawings, the mandrel 21 in the winding start position is placed substantially at the level of the horizontal plane P of the strip downstream of the shear 14, the axis 20 of rotation of the rotating frame of the winder being placed above this plane.
De ce fait, il n'est plus nécessaire de réaliser une fosse dans le massif de fondation 15 sur lequel sont fixés les différents appareillages de l'installation, afin d'y placer la bobineuse 2.Therefore, it is no longer necessary to make a pit in the foundation block 15 on which are fixed the various apparatus of the installation, in order to place the winder 2.
Mais un avantage essentiel de l'invention réside dans le fait que, après la coupe, la tête de la nouvelle bande, entraînée par les rouleaux pinceurs 13, se dirige naturellement vers le mandrin 21 qui se trouve sensiblement au niveau du plan de défilement, et peut donc s'engager facilement dans les moyens de pinçage ménagés sur le mandrin 21. Il suffit donc, pour diriger la bande vers le mandrin 21 , de placer, entre celui-ci et la cisaille 14, un plateau de guidage 4 sensiblement horizontal, constitué, par exemple d'un transporteur à bande comportant une bande sans fin 41 tendue entre deux rouleaux 42, 42'. Par ailleurs, l'axe de rotation 20 du châssis tournant étant placé au- dessus du mandrin 21, le second mandrin 21' placé dans la seconde position E2 de fin d'enroulement, diamétralement opposée, se trouve à une hauteur relativement importante au-dessus du plan de défilement P. De la sorte, pendant la rotation du châssis tournant pour le passage du mandrin dans cette position E2 et jusqu'à la fin de l'enroulement de la bobine 3, la bande suit un trajet incliné d'un angle (a) par rapport au plan de défilement P et l'effort de traction T appliqué sur la bande est dirigé en permanence vers le bas. Ainsi, alors que, dans la disposition classique, cet effort de traction avait tendance à soulever la bobineuse, dans l'invention, au contraire, l'effort de traction appliqué sur la bande et transmis par le mandrin, a tendance à appliquer le bâti 22 de la bobineuse sur le massif de fondation 15.But an essential advantage of the invention lies in the fact that, after cutting, the head of the new band, driven by the nip rollers 13, naturally moves towards the mandrel 21 which is substantially at the level of the scroll plane, and can therefore easily engage in the clamping means provided on the mandrel 21. It is therefore sufficient, to direct the strip towards the mandrel 21, to place, between the latter and the shear 14, a substantially horizontal guide plate 4 , consisting, for example of a belt conveyor comprising an endless belt 41 stretched between two rollers 42, 42 '. Furthermore, since the axis of rotation 20 of the rotating chassis is placed above the mandrel 21, the second mandrel 21 'placed in the second diametrically opposed position of the end of winding E2 is at a relatively high height above In this way, during the rotation of the rotating frame for the passage of the mandrel in this position E2 and until the end of the winding of the coil 3, the strip follows an inclined path of a angle (a) relative to the scroll plane P and the tensile force T applied to the strip is directed permanently downwards. Thus, while in the conventional arrangement, this tensile force tends to lift the winder, in the invention, on the contrary, the tensile force applied to the belt and transmitted by the mandrel, tends to apply the frame 22 of the winder on the foundation 15.
Il résulte de cette disposition de la bobineuse que la table d'inspection 5 sur laquelle doit être posé un échantillon de bande à inspecter est placée nettement au-dessus du plan de défilement P et non pas, comme auparavant, sensiblement au niveau de ce plan. De ce fait, pour acheminer l'échantillon de bande depuis la cisaille 14 jusqu'à la table d'inspection 16, on utilise, selon l'invention, des moyens de convoyage 6 passant au-dessus de la bobine 3.As a result of this arrangement of the winding machine, the inspection table 5 on which a sample of the strip to be inspected is to be placed is placed clearly above the scroll plane P and not, as before, substantially at this plane. . Therefore, to convey the strip sample from the shear 14 to the inspection table 16, according to the invention, conveying means 6 are used passing over the coil 3.
Dans le mode de réalisation préférentiel représenté sur les dessins, ces moyens de convoyage 6 comportent une table de guidage 61 formant un plateau incliné vers le haut de façon à passer au-dessus de la bobine 3 en fin d'enroulement et portant un tapis sans fin 62 tendu entre deux rouleaux écartés, respectivement un rouleau amont 63 placé un peu au-dessus du plan P de défilement de la bande et un rouleau aval 63' placé un peu en aval du plan vertical Q passant par l'axe 23' du mandrin 21' dans la position E2 de fin d'enroulement.In the preferred embodiment shown in the drawings, these conveying means 6 comprise a guide table 61 forming a plate inclined upwards so as to pass over the coil 3 at the end of winding and carrying an endless belt 62 stretched between two rollers apart, respectively an upstream roller 63 placed a little above the plane P scrolling of the strip and a downstream roll 63 'placed a little downstream of the vertical plane Q passing through the axis 23' of the mandrel 21 'in the end winding position E2.
De préférence, ce tapis sans fin 62 est du type magnétique comportant une série d'aimants 64 interposés entre les deux brins du tapis sans fin 62 et celui-ci est ménagé sur la face inférieure de la table de guidage 61 , tournée vers le plan de défilement P et la bobineuse 2.Preferably, this endless belt 62 is of the magnetic type comprising a series of magnets 64 interposed between the two strands of the endless belt 62 and this latter is formed on the lower face of the guide table 61, turned towards the plane scroll P and the winder 2.
Par ailleurs, pour maintenir la table de guidage 6 à une distance minimale au-dessus de la bande en cours d'enroulement, le plateau 6 est articulé, à son extrémité inférieure, autour d'un axe 60 orthogonal à la direction de défilement et prend appui, à son extrémité supérieure, sur la face externe 32 de la bobine 3, par l'intermédiaire d'un rouleau 65. De préférence, ce rouleau est revêtu d'une matière ne risquant pas de détériorer \a qualité de surface de la bande et utilisée, de façon classique, pour les divers rouleaux déflecteurs servant au guidage de la bande.Furthermore, to maintain the guide table 6 at a minimum distance above the strip during winding, the plate 6 is articulated, at its lower end, about an axis 60 orthogonal to the direction of travel and is supported, at its upper end, on the outer face 32 of the coil 3, by means of a roller 65. Preferably, this roller is coated with a material that does not risk deteriorating the surface quality of the band and used, conventionally, for the various deflector rollers for guiding the band.
Par ailleurs, pour réduire l'effort appliqué par le rouleau 65 sur la bobine, le poids du plateau portant le tapis de guidage 6, est compensé par un vérin 67 articulé sur la charpente C de l'installation.Furthermore, to reduce the force applied by the roller 65 on the coil, the weight of the plate carrying the guide belt 6 is compensated by a jack 67 articulated on the frame C of the installation.
D'autre part, à son extrémité amont dans le sens de défilement de la bande, la table de guidage 6 est munie d'un rouleau déflecteur 66 monté rotatif autour de l'axe 60 d'articulation du plateau 61. Selon une autre disposition préférentielle, le dispositif 4 de guidage de la bande entre la cisaille 14 et le mandrin 21 est utilisé pour appliquer l'échantillon de bande sur le tapis magnétique 62, 64 afin de le diriger vers la table d'inspection 5.On the other hand, at its upstream end in the running direction of the strip, the guide table 6 is provided with a baffle roller 66 rotatably mounted about the hinge axis 60 of the plate 61. According to another arrangement Preferably, the device 4 for guiding the band between the shear 14 and the mandrel 21 is used to apply the band sample to the magnetic belt 62, 64 in order to direct it to the inspection table 5.
A cet effet, le tapis sans fin 41 est monté sur un châssis en forme de plateau articulé autour d'un axe 40 et pouvant être orienté au moyen d'un vérin 43 dont le corps prend appui sur le massif de fondation 15 et dont la tige est articulée, autour d'un axe 44, sur une pièce d'appui solidaire du plateau orientable 4. 00877For this purpose, the endless belt 41 is mounted on a tray-shaped frame hinged about an axis 40 and can be oriented by means of a jack 43 whose body bears on the foundation block 15 and whose rod is articulated, about an axis 44, on a support piece secured to the orientable plate 4. 00877
1010
Pour réaliser l'inspection de la bande, on effectue sur celle-ci, au moyen de la cisaille 14, deux coupes séparées correspondant à la longueur d'inspection souhaitée.To carry out the inspection of the strip, two separate cuts corresponding to the desired length of inspection are carried out on it by means of the shear 14.
Après la première coupe, la queue de la bande précédente est enroulée sur la bobine 3 qui peut être évacuée. Le vérin 43 fait alors pivoter vers le haut le plateau de guidage 4, dans la position intermédiaire représentée sur la figure 2, afin que, dès la première coupe de l'échantillon, la tête de celui-ci soit dirigée vers le tapis magnétique 62 qui peut alors prendre en charge l'échantillon. Le plateau 4 continue son pivotement jusqu'à venir dans l'alignement du tapis 62, dans la position représentée sur la figure 3 et la cisaille 14 effectue une deuxième coupe pour séparer l'échantillon M1. Celui ci- est poussé par les rouleaux pinceurs 13 et appliqué sur le tapis magnétique 62, de façon à être entraîné par celui-ci vers la table d'inspection 5, en passant au-dessus de la bobine 3. Du fait que le tapis magnétique 62 est disposé sur la face inférieure du plateau 61, l'échantillon quittant le tapis 62 peut simplement être déposé sur la table d'inspection 5. Celle-ci est constituée, habituellement, d'un tapis sans fin et il est préférable que l'extrémité amont 51 de celui-ci soit écartée de la bobineuse 2 et reliée à l'extrémité aval 63' de la table de guidage 6 par une table de transfert 7 comportant également un tapis sans fin 71 monté sur un châssis non représenté, en forme de plateau et tendu entre deux rouleaux écartés, respectivement un rouleau amont 72 placé au-dessous du rouleau aval 63' de la table de guidage 6 et un rouleau aval 72' placé à côté du rouleau amont 51 de la table d'inspection 5. De la sorte, l'échantillon M1 appliqué sur la face inférieure du tapis magnétique 62 et entraîné par celui-ci se décolle du tapis 62 à partir du rouleau aval 63' et se dépose sur le brin supérieur du tapis sans fin 71 de la table de transfert 7 qui l'entraîne à son tour vers l'aval jusqu'à la table d'inspection 5 dont seule la partie amont a été représentée, cette table 5 étant constituée également d'un tapis sans fin ayant, de façon connue, une longueur correspondant à la longueur souhaitée de l'échantillon.After the first cut, the tail of the previous strip is wound on the coil 3 which can be evacuated. The cylinder 43 then rotates the guide plate 4 upwards, in the intermediate position shown in FIG. 2, so that, as soon as the first section of the sample is cut, the head thereof is directed towards the magnetic belt 62 who can then take care of the sample. The plate 4 continues its pivoting until it comes into alignment with the belt 62 in the position shown in FIG. 3 and the shear 14 makes a second cut to separate the sample M1. This is pushed by the pinch rollers 13 and applied to the magnetic belt 62, so as to be driven by it to the inspection table 5, passing over the coil 3. Because the carpet magnetic 62 is disposed on the underside of the plate 61, the sample leaving the belt 62 can simply be deposited on the inspection table 5. This is usually made of an endless belt and it is preferable that the upstream end 51 thereof is spaced from the winder 2 and connected to the downstream end 63 'of the guide table 6 by a transfer table 7 also comprising an endless belt 71 mounted on a not shown frame, in the form of a plate and stretched between two separated rollers, respectively an upstream roll 72 placed below the downstream roll 63 'of the guide table 6 and a downstream roll 72' placed next to the upstream roll 51 of the inspection table 5. In this way, the sample M1 appl it is detached from the belt 62 from the downstream roller 63 'and is deposited on the upper end of the endless belt 71 of the transfer table 7 which causes it to its turn downstream to the inspection table 5 of which only the upstream part has been shown, this table 5 being also constituted by an endless belt having, in known manner, a length corresponding to the desired length of the sample.
Comme indiqué plus haut, la table de guidage 6 prend appui directement, par le rouleau 65, sur la bobine 3, afin de suivre les variations de diamètre de celle-ci. Cependant, la longueur de bande enroulée en bobine et, par conséquent, le diamètre maximal de celle-ci peut varier car, en laminage continu, on peut traiter successivement des tôles de nature et de dimensions différentes. A titre d'exemple, les figures 1 et 2 montrent une bobine 3 de diamètre maximal alors que la figure 3 montre la disposition correspondant à une bobine 3 de faible diamètre. II faut donc que la table de transfert 7 suive également ces variations de diamètre.As indicated above, the guide table 6 bears directly, by the roller 65, on the spool 3, in order to follow the variations in diameter thereof. However, the coil-wound tape length and, therefore, the maximum diameter thereof may vary because, in continuous rolling, it is possible successively to treat sheets of different types and sizes. By way of example, FIGS. 1 and 2 show a coil 3 of maximum diameter while FIG. 3 shows the arrangement corresponding to a coil 3 of small diameter. It is therefore necessary that the transfer table 7 also follow these variations in diameter.
Pour cela, la table de transfert 7 est articulée, à son extrémité aval, autour d'un axe horizontal correspondant, de préférence à l'axe de rotation du rouleau aval 72' placé à proximité du rouleau amont 51 de la table d'inspection 5. La table de transfert 7 peut être orientée au moyen d'un vérin 73 de façon que son extrémité amont 74 se trouve toujours placée à un niveau intermédiaire entre la bobine 3 en fin d'enroulement et l'extrémité aval de la table de guidage 6, c'est-à-dire le rouleau aval 63' du tapis magnétique 62. Comme indiqué, sur les dessins, l'extrémité amont de la table de transfert 7 peut être munie d'une partie effilée 73 formant un bec de guidage s'étendant au-dessous du brin inférieur de la table de guidage 6 pour faciliter le passage de l'échantillon vers la table de transfert 7.For this, the transfer table 7 is articulated, at its downstream end, about a horizontal axis corresponding, preferably to the axis of rotation of the downstream roller 72 'placed near the upstream roller 51 of the inspection table 5. The transfer table 7 can be oriented by means of a jack 73 so that its upstream end 74 is always placed at an intermediate level between the coil 3 at the end of winding and the downstream end of the table. 6, that is to say the downstream roll 63 'of the magnetic belt 62. As indicated, in the drawings, the upstream end of the transfer table 7 may be provided with a tapered portion 73 forming a spout. guidance extending below the lower run of the guide table 6 to facilitate passage of the sample to the transfer table 7.
Grâce à ces dispositions, au début de l'enroulement la tête de la bande est dirigée directement vers le mandrin 21 en restant dans son plan de défilement P. Etant donné que, selon l'invention, l'axe de rotation 23 du mandrin 21 est placé sensiblement dans ce plan P, l'un des bras 25 de l'enveloppeur s'étend au-dessus du mandrin 21 en formant, avec celui-ci, un espace de guidage qui se resserre progressivement et dans lequel la tête de la bande s'engage naturellement.Thanks to these arrangements, at the beginning of the winding the head of the strip is directed directly to the mandrel 21 while remaining in its scroll plane P. Given that, according to the invention, the axis of rotation 23 of the mandrel 21 is placed substantially in this plane P, one of the arm 25 of the wrapper extends above the mandrel 21 forming, with the latter, a guide space which is gradually tightened and in which the head of the band naturally engages.
Après enroulement des premières spires, le châssis de la bobineuse peut tourner de façon à amener le mandrin dans sa position E2, le vérin 67 pouvant écarter la table de guidage 6 pour permettre cette rotation de la bobine en cours d'enroulement. Lorsque la bobine se trouve dans la position E2, la table de guidage 7 est abaissée jusqu'à ce que le rouleau 65 vienne au contact de la face externe de la spire. Comme indiqué plus haut, pendant l'enroulement, la bande est inclinée vers la haut d'un angle (a) à partir du rouleau déflecteur 66, l'effort de traction T étant dirigé vers le bas.After winding the first turns, the frame of the winder can rotate to bring the mandrel to its position E2, the jack 67 can move the guide table 6 to allow this rotation of the coil during winding. When the coil is in the position E2, the guide table 7 is lowered until the roller 65 comes into contact with the outer face of the coil. As noted above, during winding, the strip is inclined upwardly at an angle (a) from the baffle roller 66, the tensile force T being directed downwards.
A la fin de l'enroulement en bobine de la longueur de bande souhaitée, celle-ci est coupée afin de réaliser la tête de l'échantillon M1 qui 8 000877At the end of the coil winding of the desired strip length, it is cut in order to make the head of the sample M1 which 8000877
1212
est dirigée vers la table de guidage 6 par rotation de la table d'aiguillage 4. Il y a lieu de noter que, avantageusement, l'axe d'articulation 40 de celle-ci est placé dans sa partie centrale et décalé vers le bas de la façon représentée sur les figures. De la sorte, le tapis sans fin constituant la table d'aiguillage 4 tourne autour de son point de tangence avec le rouleau déflecteur 66 et le rouleau amont 42 s'écarte vers le bas pour laisser passer la tête de l'échantillon M1 qui est appliquée sur la face inférieure du tapis sans fin 61 par le mouvement vers le haut de l'extrémité aval 42' du tapis d'aiguillage 4, de la façon représentée sur la figure 3. L'échantillon M1 est ainsi guidé successivement par la table d'aiguillage 4, la table de guidage 6 et la table de transfert 7 jusqu'à la table d'inspection 5, en passant au-dessus de la bobineuse 2.is directed towards the guide table 6 by rotation of the switch table 4. It should be noted that, advantageously, the hinge axis 40 thereof is placed in its central part and shifted downwards. as shown in the figures. In this way, the endless belt constituting the switching table 4 rotates about its point of tangency with the deflector roller 66 and the upstream roller 42 moves downwards to let the head of the sample M1 which is applied on the underside of the endless belt 61 by the upward movement of the downstream end 42 'of the switch mat 4, as shown in FIG. 3. The sample M1 is thus successively guided by the table 4, the guide table 6 and the transfer table 7 to the inspection table 5, passing over the coiler 2.
La position relevée de celle-ci permet de supprimer la fosse dans laquelle elle est placée habituellement, tous les appareillages pouvant être placés sur un même plancher de fondation 15. En outre, l'évacuation des bobines enroulées 3' est facilitée.The raised position thereof eliminates the pit in which it is usually placed, all devices can be placed on the same foundation floor 15. In addition, the evacuation coiled coils 3 'is facilitated.
De même, le relevage de la table d'inspection 5 à une hauteur relativement importante au-dessus du plancher de fondation 15 facilite la mise en place de mécanismes de retournement tels que décrits, par exemple, dans les documents WO 2006/051239 ou JP 2000 254725, cités plus haut.Similarly, raising the inspection table 5 to a relatively large height above the foundation floor 15 facilitates the establishment of turning mechanisms as described, for example, in WO 2006/051239 or JP 2000 254725, cited above.
Cependant, l'invention ne se limite évidemment pas aux détails du mode de réalisation préférentiel qui vient d'être décrit à titre de simple exemple. En particulier, il est avantageux de faire passer l'échantillon sur une suite de tapis sans fin 4, 6, 7, 5 mais d'autres moyens de convoyage pourraient être utilisés.However, the invention is obviously not limited to the details of the preferred embodiment which has just been described as a simple example. In particular, it is advantageous to pass the sample over a succession of endless mats 4, 6, 7, 5 but other conveying means could be used.
De même, on a décrit, comme habituellement une bobineuse à carrousel comportant deux mandrins diamétralement opposés mais on pourrait aussi utiliser, par exemple des bobineuses à trois mandrins.Similarly, it has been described, as usually a carousel winder with two diametrically opposed mandrels but could also be used, for example three-mandrel winders.
Par ailleurs, du fait que le mandrin 21 est placé, en position E1 de début d'enroulement à une certaine hauteur au-dessus du plancher 15, il est plus facile de disposer autour du mandrin des enveloppeurs de tout type connu pour faciliter l'engagement de la tête de bande et le début d'enroulement. Moreover, because the mandrel 21 is placed in position E1 winding start at a certain height above the floor 15, it is easier to arrange around the mandrel wrappers of any type known to facilitate the engagement of the tape head and the beginning of winding.

Claims

REVENDICATIONS
1. Dispositif d'inspection d'une bande métallique (M) à la sortie d'une installation de traitement en ligne comportant successivement, le long d'une direction de défilement de la bande (M), une section de traitement (A) au moins, une cisaille (14), une bobineuse (2) du type à carrousel pour l'enroulement sous traction de la bande (M), comportant au moins deux mandrins d'enroulement (21, 21') montés sur un châssis tournant autour d'un axe (20) orthogonal à la direction de défilement, de façon à faire passer alternativement chaque mandrin (21, 21') d'une position (E1) de début d'enroulement à une position (E2) de fin d'enroulement, des moyens (4) de guidage de la bande (M), après cisaillement, vers le mandrin (21) en position (E 1) de début d'enroulement et un dispositif d'inspection (5) comportant des moyens de convoyage d'un échantillon (M1) prélevé sur la bande (M) vers une table d'inspection (5) s'étendant en aval de la bobineuse (2), caractérisé par le fait que, dans sa position (E1 ) de début d'enroulement, le mandrin (21 ) est placé sensiblement au niveau d'un plan (P) de défilement de la bande (M) en aval de la cisaille (14) alors que, dans la position (E2) de fin d'enroulement, le mandrin (21') est placé au-dessus dudit plan de défilement P de telle sorte que l'effort de traction (T) appliqué par la bande (M) soit toujours dirigé vers le bas, et que les moyens (6) de convoyage de l'échantillon entre la cisaille (14) et la table d'inspection (5) sont ménagés sur au moins une table de guidage (61) inclinée vers le haut de façon à passer au-dessus de la bobine (3) à tout moment de l'enroulement et quelque soit le diamètre de celle-ci.1. Apparatus for inspecting a metal strip (M) at the outlet of an on-line processing installation comprising successively, along a running direction of the strip (M), a processing section (A) at least one shear (14), a carousel type winder (2) for tensioning the web (M), comprising at least two winding mandrels (21, 21 ') mounted on a rotating frame around an axis (20) orthogonal to the running direction, so as to pass each mandrel (21, 21 ') alternately from a winding start position (E1) to an end position (E2) of winding, means (4) for guiding the strip (M), after shearing, towards the mandrel (21) in position (E 1) at the beginning of winding and an inspection device (5) comprising means for conveying a sample (M1) taken from the belt (M) to an inspection table (5) extending downstream of the winder (2), characterized in that, in its position (E1) winding start, the mandrel (21) is placed substantially at a plane (P) of travel of the strip (M) downstream of the shear (14) while in the winding end position (E2), the mandrel (21 ') is placed above said running plane P so that the tensile force (T) applied by the strip (M) is always directed towards the low, and that means (6) for conveying the sample between the shear (14) and the inspection table (5) are provided on at least one guide table (61) inclined upwards so as to pass above the coil (3) at any time of the winding and whatever the diameter thereof.
2. Dispositif d'inspection selon la revendication 1 , caractérisé par le fait que la table d'inspection (5) est placée au-dessus du plan (P) de défilement de la bande en aval de la cisaille (14), à une distance dudit plan supérieure au rayon maximal d'une bobine (3) en fin d'enroulement, augmenté de la distance entre les axes de rotation (23) du mandrin (21) et (20) du châssis tournant.2. Inspection device according to claim 1, characterized in that the inspection table (5) is placed above the plane (P) of travel of the strip downstream of the shear (14), at a distance of distance from said upper plane to the maximum radius of a coil (3) at the end of winding, plus the distance between the axes of rotation (23) of the mandrel (21) and (20) of the rotating frame.
3. Dispositif d'inspection selon l'une des revendications 1 et 2, caractérisé par le fait que les moyens (6) de convoyage de l'échantillon (M1 ) sont ménagés le long d'une face inférieure de la table de guidage inclinée (61), tournée vers le plan (P) de défilement de la bande. 3. Inspection device according to one of claims 1 and 2, characterized in that the means (6) for conveying the sample (M1) are formed along a lower face of the inclined guide table (61), facing the plane (P) of the tape.
4. Dispositif d'inspection selon la revendication 3, caractérisé par le fait que les moyens de convoyage (6) comportent des moyens d'application de l'échantillon (M1) sur la face inférieure de la table de guidage (61), avec possibilité de déplacement longitudinal. 4. Inspection device according to claim 3, characterized in that the conveying means (6) comprise means for applying the sample (M1) to the underside of the guide table (61), with possibility of longitudinal displacement.
5. Dispositif d'inspection selon l'une des revendications précédentes, caractérisé par le fait que les moyens (6) de convoyage de l'échantillon comportent un tapis sans fin (62) s'étendant entre deux rouleaux écartés (63, 63'), entre une extrémité amont et une extrémité aval de la table de guidage (61). 5. Inspection device according to one of the preceding claims, characterized in that the means (6) for conveying the sample comprise an endless belt (62) extending between two spaced rollers (63, 63 '). ), between an upstream end and a downstream end of the guide table (61).
6. Dispositif d'inspection selon l'une des revendications précédentes, caractérisé par le fait que la table de guidage (6) portant les moyens (62) de convoyage de l'échantillon (M1) est articulée, à une extrémité amont (63), autour d'un axe (60) orthogonal à la direction de défilement et s'étend suivant un plan incliné passant au-dessus de la bobine (3) en position (E2) de fin d'enroulement, jusqu'à une extrémité aval (63') placée sensiblement au niveau du plan vertical Q passant par l'axe de ladite bobine (3), au-dessus de celle-ci.6. Inspection device according to one of the preceding claims, characterized in that the guide table (6) carrying the means (62) for conveying the sample (M1) is articulated at an upstream end (63). ), about an axis (60) orthogonal to the running direction and extends along an inclined plane passing above the coil (3) in end winding position (E2), to one end downstream (63 ') placed substantially at the vertical plane Q passing through the axis of said coil (3), above it.
7. Dispositif d'inspection selon la revendication 6, caractérisé par le fait que le châssis (61) de la table de guidage (6) est muni, à son extrémité amont, d'un rouleau déflecteur (66) centré sur l'axe (60) d'articulation dudit châssis (61) et sur lequel vient s'appliquer l'échantillon (M1) prélevé sur la bande (M), à la sortie de la cisaille (14).7. Inspection device according to claim 6, characterized in that the frame (61) of the guide table (6) is provided at its upstream end with a deflector roller (66) centered on the axis (60) of articulation of said frame (61) and on which is applied the sample (M1) taken from the strip (M) at the exit of the shear (14).
8. Dispositif d'inspection selon l'une des revendications 2 à 7, caractérisé par le fait que la table de guidage (6) prend appui sur la bobine (3) en position de fin d'enroulement (E2), par l'intermédiaire d'un rouleau (65) tournant autour d'un axe orthogonal à la direction de défilement.8. Inspection device according to one of claims 2 to 7, characterized in that the guide table (6) bears on the coil (3) in end winding position (E2), by the intermediate roller (65) rotating about an axis orthogonal to the direction of travel.
9. Dispositif d'inspection selon l'une des revendications 2 à 8, caractérisé par le fait qu'il comprend une table de transfert (7) munie de moyens (71) de convoyage longitudinal de l'échantillon (M1), et s'étendant entre une extrémité aval (63') de la table de guidage inclinée (6) et une extrémité amont (51) de la table d'inspection (5).9. Inspection device according to one of claims 2 to 8, characterized in that it comprises a transfer table (7) provided with means (71) for longitudinal conveying of the sample (M1), and extending between a downstream end (63 ') of the inclined guide table (6) and an upstream end (51) of the inspection table (5).
10. Dispositif d'inspection selon la revendication 9, caractérisé par le fait que l'extrémité amont (72) de la table de transfert (7) est placée à un niveau intermédiaire entre l'extrémité aval (63') de la table de guidage (6) et la bobine (3) en position de fin d'enroulement (E2). 008/00087710. An inspection device according to claim 9, characterized in that the upstream end (72) of the transfer table (7) is placed at an intermediate level between the downstream end (63 ') of the table guide (6) and the coil (3) in the winding end position (E2). 008/000877
1515
11. Dispositif d'inspection selon l'une des revendications précédentes, caractérisé par le fait qu'il comporte un dispositif d'aiguillage (4) placé en aval de la cisaille (14) et comprenant un plateau (4) articulé autour d'un axe (40) orthogonal à la direction de défilement de la bande (M) et des moyens (43) d'orientation du plateau (4) entre une position sensiblement horizontale de convoyage de la bande (M) vers le mandrin (21) en position (E1) de démarrage et une position inclinée vers le haut, de raccordement avec une extrémité amont (63) des moyens (6) de convoyage de l'échantillon (M1).11. Inspection device according to one of the preceding claims, characterized in that it comprises a switching device (4) placed downstream of the shear (14) and comprising a plate (4) articulated around an axis (40) orthogonal to the running direction of the web (M) and means (43) for orienting the plate (4) between a substantially horizontal conveying position of the web (M) towards the mandrel (21) in the starting position (E1) and an upwardly inclined position, connecting with an upstream end (63) of the means (6) for conveying the sample (M1).
12. Dispositif d'inspection selon la revendication 11 , caractérisé par le fait que le plateau d'aiguillage (4) est articulé autour d'un axe (40) placé dans sa partie centrale, sensiblement au niveau de l'extrémité amont (66) du moyen de convoyage (6), de façon à comporter, dans la position inclinée du plateau (4), une partie amont (42) qui s'écarte vers le bas pour le passage de l'échantillon (M1) et une partie aval (42') qui vient sensiblement au contact desdits moyens de convoyage (6). 12. Inspection device according to claim 11, characterized in that the switch plate (4) is articulated about an axis (40) placed in its central portion, substantially at the upstream end (66). ) of the conveying means (6), so as to comprise, in the inclined position of the plate (4), an upstream part (42) which deviates downwards for the passage of the sample (M1) and a part downstream (42 ') which comes into substantially contact with said conveying means (6).
EP08837906A 2007-10-08 2008-06-20 Device for inspecting a metal strip Not-in-force EP2205369B1 (en)

Applications Claiming Priority (2)

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FR0758151A FR2921852B1 (en) 2007-10-08 2007-10-08 DEVICE FOR INSPECTING A METAL STRIP
PCT/FR2008/000877 WO2009047395A1 (en) 2007-10-08 2008-06-20 Device for inspecting a metal strip

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EP2205369A1 true EP2205369A1 (en) 2010-07-14
EP2205369B1 EP2205369B1 (en) 2012-12-26

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CN (1) CN101821029B (en)
ES (1) ES2401973T3 (en)
FR (1) FR2921852B1 (en)
WO (1) WO2009047395A1 (en)

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IT1397452B1 (en) * 2009-12-30 2013-01-10 Danieli E C Ohg S P A DEVICE AND PROCEDURE FOR WINDING / CARRYING OUT A METAL PRODUCT IN A ROLLING LINE
DE102011077461A1 (en) 2011-02-23 2012-08-23 Sms Siemag Ag Apparatus and method for taking a sample from a coil
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Also Published As

Publication number Publication date
CN101821029A (en) 2010-09-01
FR2921852B1 (en) 2010-02-26
WO2009047395A1 (en) 2009-04-16
CN101821029B (en) 2012-06-20
ES2401973T3 (en) 2013-04-25
EP2205369B1 (en) 2012-12-26
FR2921852A1 (en) 2009-04-10

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