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WO2010049596A1 - Method and device for honing metal strip of arbitrary width in continuous motion - Google Patents

Method and device for honing metal strip of arbitrary width in continuous motion Download PDF

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Publication number
WO2010049596A1
WO2010049596A1 PCT/FR2008/001512 FR2008001512W WO2010049596A1 WO 2010049596 A1 WO2010049596 A1 WO 2010049596A1 FR 2008001512 W FR2008001512 W FR 2008001512W WO 2010049596 A1 WO2010049596 A1 WO 2010049596A1
Authority
WO
WIPO (PCT)
Prior art keywords
abrasive element
strip
honing
displacement
band
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.)
Ceased
Application number
PCT/FR2008/001512
Other languages
French (fr)
Inventor
Gaël IMBERT
Jean-Pierre Rivollier
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
Priority to RU2011121358/02A priority Critical patent/RU2492039C2/en
Priority to BRPI0823205-9A priority patent/BRPI0823205A2/en
Priority to CN2008801316894A priority patent/CN102196885A/en
Priority to PCT/FR2008/001512 priority patent/WO2010049596A1/en
Priority to EP08875620A priority patent/EP2349641A1/en
Priority to US13/126,230 priority patent/US20110318991A1/en
Publication of WO2010049596A1 publication Critical patent/WO2010049596A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising

Definitions

  • the present invention relates to a method and a device for honing suspended metal strips, of arbitrary widths and in continuous scrolling, according to the preambles of claims 1 and 13.
  • the invention relates to an automated honing, based on a selective abrasion technique intended to highlight the surface defects of cold-rolled metal strips, the so-called honing being operated on suspended metal strips, in scrolling continuously, and being processed in a processing facility.
  • Processing facilities for rolled metal strips such as, for example, cold rolling mills or continuous coating lines, can generate defects on the surface of the belts leading to costly rejects or downgrades. These defects come mainly from rolling operations, even under slight reduction as in the case of a skin-pass lamination or indentations of foreign bodies when passing under tension on tensioning or deflecting rollers. In any case, the marks generated on the strip are cyclic and reproduce at each rolling cylinder or roll turn.
  • the said length is generally chosen depending on the step of the longest cycle, for example, the developed length of the working rolls of the first rolling stand multiplied by the reduction in thickness, or the developed length of the largest tensioner roll or deflector.
  • the technique of honing which consists in rubbing an abrasive stone on the surface of the strip, makes it possible to highlight discrete defects that are hardly detectable by visual examination even with a grazing light. Thanks to the honing, the most relief parts such as, for example, the ridges of corrugations, indentation burrs, or incrustations, undergo a slight abrasion which is sufficient, by contrast, to put them more easily in evidence. a vision inspection.
  • This honing operation is usually done manually by an operator who must move the entire width of the strip (which can reach nearly two meters wide) and the entire length of the sample (from 5 to 15 meters depending on the case ). These movements must be made with extreme care not to generate defects themselves, the operators proceed by moving on the hands and knees. Such an operation can be conceived only if the band portion to be inspected is stationary. It therefore remains of limited use to lines dedicated to inspection and samples inspected offline. On the other hand it requires that the tape is supported on a support such as a table or a conveyor which can, in some cases, create "false defects" due to the reaction of the support to honing the tape.
  • a device automating a honing inspection of a continuously moving steel strip surface has been proposed according to KR2003-0077104.
  • the said device comprises among others: a means of horizontal displacement, transverse to the running direction of the strip, of an abrasive element, the said means being capable of effecting an alternating displacement from one edge to the other of the strip of fixed width; allowing to apply a homogeneous pressure of the abrasive element on the metal strip supported by a system of rollers.
  • the present invention does not concern a honing operated for a metal strip of fixed width and supported by a roller system, but on the contrary, a honing for a band of arbitrary width applied to a portion of strip suspended between at least two modules a processing facility.
  • the device according to KR2003-0077104 is a facility dedicated to the inspection of metal strips after processing the strip, while the present invention applies to strips being processed in a processing facility.
  • An object of the present invention is to propose a method of free, artefact-free and automated honing, of at least one face of a metal strip in continuous scrolling, for which the said honing is performed on a portion of the strip in suspension for example between two metal rollers supporting the band.
  • Another object of the invention is to allow the said honing to operate on a maximum surface of a metal strip of arbitrary width during processing in a processing facility.
  • the method according to the invention comprises a variable adjustment of said pressure as a function of a longitudinal tension of the strip portion of arbitrary width in a state of suspension.
  • the method according to the invention is characterized in that the honing is operated for a predetermined duration for a band of arbitrary width being processed in a processing facility.
  • the honing time can advantageously be related to the time interval separating the appearances of a cyclic defect, in particular, this duration can be determined according to the roll or rollers having the lowest angular speed of the processing plant. , in order to appreciate defects that may come from any other roller having a higher angular velocity.
  • Another advantage relating to a control of the duration of honing is to be able to identify which element of the processing plant is at the origin of the defect using a deconvolution method based on the duration of honing and the position of the defect on the abraded strip portion.
  • the method according to the invention advantageously applies to metal strips of arbitrary widths.
  • the method according to the invention is characterized by a transverse displacement of the abrasive element adapted to the arbitrary width of the strip by means of edge detection of the strip in its transverse direction. Said detection makes it possible to set limits to the transverse displacement of the abrasive element. Said detection can take place continuously during the scrolling of the band being transformed, but also, simply, at the beginning of a honing cycle or the engagement of a new band. The bandwidth would thus be memorized (recording of the abscissas of the band edges) at the beginning of the honing operation and for its duration. At the end of a honing cycle, or at a new tape start, a new bandwidth measurement can be automatically performed.
  • the method according to the invention is further characterized in that the bringing into contact is operated from at least one rest position to at least one working position of the abrasive element.
  • Said rest position advantageously provides secure access to the abrasive element for an operator. In fact, it is an off-line position, outside the grip of the strip, which allows, for example, a visual check of the abrasive element, or the manual / automated quick change of the abrasive element. case of wear having exceeded a threshold value.
  • the working position of the abrasive element is above the web, characterized by at least one contacting state of the abrasive element with the web, as well as at least one non-contact state of the abrasive element. abrasive element above the band.
  • a horizontal transfer makes it possible to move the abrasive element from its rest position to its working position above the band, preferably in the median axis thereof.
  • a vertical transfer then makes it possible to go from an off-contact state to a state in contact with the abrasive element with the strip, the latter state being in contact allowing, strictly speaking, an abrasive work on the part of the abrasive element. contact with the band.
  • the method according to the invention is characterized in that the pressure is adjustable in the rest position and / or in the working position. This makes it possible, for example, to preset the honing operation for metal strips with known characteristics in the rest position, but also to adjust the pressure during honing in the working position when the band characteristics are new.
  • the method according to the invention is characterized by an adjustable pressure as a function of the longitudinal tension of the strip by adding at least one stress to a vertical degree of freedom of the abrasive element.
  • a simple example of stress would be in this case an addition of at least one mass to a mechanism allowing a vertical displacement of the abrasive element.
  • Another example would be a manual / automated preload adjustment of at least one spring having a role in applying the pressure of the abrasive element to the surface of the web.
  • the adjustment of this pressure would advantageously maintain a quality of contact with the surface of the band close to human practice, with a piercing force ideally varying between 5 and 50 N for a surface of 150x50mm.
  • the method according to the invention is characterized in that a correlation between a running speed of the strip and a transverse displacement speed of the abrasive element regulates the displacement of the abrasive element.
  • the transverse displacement speed of the abrasive element is defined as a function of a geometry of the contact zone, a geometry of the strip and the speed of travel of the strip.
  • the transverse displacement speed is set to a value equal to the quotient [Vb • ( lb-2r-lp)] / Lp, defined by a width (Ib) of the band, the running speed (Vb) of the band and a distance of withdrawal (r) of an edge of the band relative to at one edge, parallel and the nearest, of the abrasive element at each end of its transverse displacement.
  • This correlation advantageously makes it possible to pierce the entire surface of the strip included at a withdrawal distance (r) from the strip edges.
  • the method according to the invention advantageously comprises an adjustment of the running speed (Vb) of the strip in at least a portion of the conversion plant as a function of the transverse displacement speed of the abrasive element.
  • Vb running speed
  • the method according to the invention is characterized in that a commitment of the honing method and the duration of honing are configured according to an availability and a capacity of total or residual accumulation of at least one tape accumulator device located upstream of the abrasive element in the processing installation in the direction of travel of the tape. Indeed, in the case where, for example, the transverse movement speed of the honing tool would not sweep the entire width of the band at the rate of the tape speed in the processing plant, it would then be necessary to reduce the speed of the band in the honing zone via the accumulator device of bandaged.
  • a bidirectional exchange of information between at least one accumulator device, a control member of the installation and a control member of the honing device can advantageously allow manual configuration, even automatic, and / or manual adjustment, or even automated, parameters aiming at a performing and functional honing operation.
  • the method according to the invention is characterized in that an exceeding of a wear threshold of the abrasive element is detected, reported and capable of causing the interruption of honing.
  • the abrasive element is transferred vertically out of contact with the belt, then horizontally in its rest position, a position in which for example an operator could safely check the state of wear. abrasive element, and if necessary, replace it.
  • the replacement of the abrasive element could be automated and, in particular, coupled to the tape accumulator device to slow down the movement of the tape being processed during the replacement. worn abrasive element.
  • the underlying advantage of the method is firstly not to interrupt the transformation of the strip during the replacement of the abrasive element, and also, secondly, to minimize the uncured surface by slowing down the abrasive element. the speed of travel of the web when coupled with a tape accumulator device.
  • the method according to the invention is further characterized in that the honing is performed upstream of an inspection station by vision.
  • This may be for example a purely visual inspection, or a visual inspection aided by video scanning.
  • the assessment, or even the result, of the said inspection may, for example, be directly This is reflected in the operation of the processing plant, requiring, for example, an interruption of the transformation of the tape, or its slowing down (via accumulation of the tape in an accumulator device), or again the verification of a part of elements of the processing plant in direct contact with the belt, in order to determine the cause of the tape defects observed during the inspection and to remedy them.
  • a honing device of at least one face of a continuous-moving metal strip comprising:
  • the device according to the invention is characterized in that said first means allows to apply a homogeneous pressure on a suspended portion of band of arbitrary width and scrolling, and is coupled to a second means for adjusting said pressure as a function of the longitudinal tension of the suspended band portion.
  • the device according to the invention is characterized in that the said honing device can be integrated into an installation for transforming metal strips of arbitrary widths in order to carry out the said honing for a determined duration on a strip being processed. - tion.
  • the honing device makes it possible to avoid congestion due to an additional installation dedicated specifically to the inspection (by honing) of converted metal strips.
  • the device performing a real-time honing on a strip being processed, has the advantage of reducing the reaction time before the observation of defects in a metal strip, thus allowing, for example, a decrease in the amount of strip waste not meeting the rolling tolerances, cost and material savings.
  • the device according to the invention is characterized in that the said horizontal displacement means makes it possible to move the abrasive element from at least one rest position to at least one working position, the said rest position. located outside the belt's grip to allow safe maintenance of the abrasive element for an operator, and said working position at the top of the belt and having at least one state in contact with the abrasive element with the band, as well as at least one non-contact state of the abrasive element with the band.
  • the off-line rest position of the abrasive element allows an operator to safely check its condition, but also to control at least part of the horizontal moving means.
  • the device according to the invention is characterized in that said horizontal displacement means comprises at least one horizontal carriage adapted to move transversely to the strip over a distance greater than the width thereof and including said positions. rest and work.
  • Said vertical positioning means carries at least one vertical transfer member disposed between the carriage and a tool support, said tool support having a fixed vertical position during honing and supporting the first and second pressure means.
  • the vertical transfer member comprises at least one jack actuating a set of links arranged in deformable parallelogram.
  • the device according to the invention is particularly characterized in that said first pressure means comprises at least one tool plate supporting the honing element and secured to said tool support by means of at least one vertical slide in which the tool plate can slide freely.
  • the first pressure means makes it possible to bring the abrasive element into contact with the strip, while the second pressure means makes it possible to adjust said pressure to the longitudinal tension of the strip portion.
  • This honing device is thus characterized by an adjustable pressure capable of being supported by the single tension of the strip passing for example between at least two devices having the capacity to support the strip, such as for example a tensioning device or deflector upstream of the honing and a retractor device downstream.
  • the advantage of such a device is to avoid artefacts due to honing carried out on a strip resting on a support such as a table, a conveyor or rollers. Indeed, the support of the band on a support during honing generally creates false defects due to the reaction of the support to the honing of the band. In addition, automatic honing is less painful for the operator who can then focus on the quality of processing of the tape.
  • the device according to the invention is characterized in that a detection system detects the edges of the strip and transmits a signal relating said detection to the horizontal displacement means in order to advantageously adapt said displacement of the abrasive element to the arbitrary width of the strip.
  • the horizontal displacement is limited to a stroke of a value equal to (Lb) - ((Ip) + (2r)), defined by a difference between the bandwidth (Lb) and the sum of a width ( Ip) of the abrasive element with a distance (2r) equal to twice a distance of withdrawal (r) of an edge of the strip relative to a edge, parallel and the nearest, of the abrasive element to each end of its transverse displacement.
  • the detection system can measure the width of the strip continuously on a strip being processed, but also at the beginning of a honing cycle of a determined duration, or at the beginning of a band or, on request, following the decision of an operator.
  • said detection system comprises at least one detector, in particular a contact-free remote sensor capable of detecting the edges of the strip during transverse displacement of the abrasive element, said detector being integral with an element having a fixed vertical position during honing and belonging to the vertical positioning means.
  • said element having a fixed vertical position may be the tool support.
  • the device according to the invention is characterized in that the second pressure means comprises at least one detector, in particular a distance detector, free of contact, able to detect the horizontal level of the abrasive element, says detector being secured to an element having a fixed vertical position during honing, ideally belonging to the vertical positioning means. Said detection makes it possible in particular to control in a simple manner a wear of the abrasive element by comparing the measured horizontal level with a threshold value characterizing a reference level. Ideally, a detection system will detect and equal to a wear of the abrasive element approaching the threshold value, and, if necessary, interrupts the honing when said threshold value is exceeded. In particular, in case of interruption of honing due to wear of the abrasive element, said abrasive element returns to its rest position where it will be exchanged for a new abrasive element, either manually by an operator, or automated way.
  • the second pressure means comprises at least one detector, in particular a distance detector, free of contact, able
  • the device according to the invention is characterized in that an adjustment system correlates a running speed of the strip at a transverse displacement speed of the abrasive element in order to (automatically) adjust the speed of the abrasive element. moving the band to the honing capabilities of the honing device in at least a portion of the processing plant.
  • said adjustment is characterized by at least one exchange of at least one adjustment signal between a control system of the installation and said honing device.
  • the adjustment system would for example make it possible to reduce the speed of the strip by using a tape accumulator device upstream of the honing to allow a detailed visual inspection of the strip or the change of a worn abrasive element. .
  • Figure 1 embodiment example of piercing device performed on a suspended band of arbitrary width.
  • FIG. 1 shows a device (7) for honing at least one face of a metal strip (1) suspended in continuous movement and comprising: means (73) for vertical positioning of an abrasive element (71) on the surface of said strip,
  • first means (72) for applying a homogeneous pressure of the abrasive element on the metal strip characterized in that said first means (72) makes it possible to apply a homogeneous pressure to a suspended portion of the strip; in movement and is coupled to a second means (75) for adjusting said pressure as a function of the longitudinal tension of the suspended portion of tape.
  • the means (74) of horizontal displacement comprises a horizontal carriage adapted to move transversely to the strip over a distance greater than the width thereof and including a rest position and work.
  • the vertical positioning means (73) comprises a vertical transfer member (732) disposed between the carriage and a tool support (731), said tool support having a fixed vertical position during honing and supporting the first one.
  • the first pressure means (72) comprises a tool plate (721) supporting the honing element and secured to said tool support (731) by means of at least one vertical slide (722) in which the plate tool holder can slide freely.
  • a working position in contact with the abrasive element on the surface is illustrated by the honing device (7), while the honing device (8) illustrates a working position of the abrasive element out of the contact of the strip.

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  • Engineering & Computer Science (AREA)
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Abstract

The present invention describes a method and device for honing a metal strip of arbitrary width in continuous motion, allowing honing that is free of artefacts and automated of a suspended portion of at least one side of a metal strip. The said device comprises: a means of vertically positioning an abrasive element at the surface of the said strip, a means of horizontally moving the abrasive element transversely to the motion of the said strip, the said means being couplable to the vertical-positioning means and able to move back and forth from one edge of the strip to the other, a first means allowing uniform pressure to be applied to press the abrasive element against the metal strip, and is characterized in that the said first means allows a uniform pressure to be applied to a suspended portion of strip in motion and can be coupled to a second means that allows the said pressure to be adjusted according to the longitudinal tension of the suspended portion of strip.

Description

Description Description

Méthode et dispositif de pierrage de bandes métalliques de largeurs arbitraires en défilement continu.Method and device for honing metal strips of arbitrary widths in continuous scrolling.

La présente invention concerne une méthode et un dispositif de pierrage de bandes métalliques suspendues, de largeurs arbitraires et en défilement continu, selon les préambules des revendications 1 et 13.The present invention relates to a method and a device for honing suspended metal strips, of arbitrary widths and in continuous scrolling, according to the preambles of claims 1 and 13.

En particulier, l'invention se rapporte à un pierrage automatisé, basé sur une technique d'abrasion sélective destinée à mettre en évidence les défauts de surface de bandes métalliques laminées à froid, le dit pierrage étant opéré sur des bandes métalliques suspendues, en défilement continu, et en cours de transformation dans une installation de transformation.In particular, the invention relates to an automated honing, based on a selective abrasion technique intended to highlight the surface defects of cold-rolled metal strips, the so-called honing being operated on suspended metal strips, in scrolling continuously, and being processed in a processing facility.

Les installations de transformation des bandes métalliques laminées telles que, par exemple, les laminoirs à froid ou les lignes continues de revêtement, peuvent générer à la surface des bandes des défauts conduisant à des rebuts ou des déclassements coûteux. Ces défauts proviennent essentiellement des opérations de laminage, même sous faible réduction comme dans le cas d'un laminage skin-pass ou d' indentations de corps étrangers au passage sous traction sur des rouleaux tensionneurs ou déflecteurs. Dans tous les cas, les marques générées sur la bande ont un caractère cyclique et se reproduisent à chaque tour de cylindre de laminage ou de rouleau.Processing facilities for rolled metal strips such as, for example, cold rolling mills or continuous coating lines, can generate defects on the surface of the belts leading to costly rejects or downgrades. These defects come mainly from rolling operations, even under slight reduction as in the case of a skin-pass lamination or indentations of foreign bodies when passing under tension on tensioning or deflecting rollers. In any case, the marks generated on the strip are cyclic and reproduce at each rolling cylinder or roll turn.

Afin de pouvoir détecter et apprécier rapidement de tels défauts et remédier à leurs causes, il est d'usage de pratiquer une inspection visuelle d'une ou des deux faces d'une portion de bande de longueur suffisante pour présenter d'éventuels défauts cycliques. La dite longueur est généralement choisie en fonction du pas du cycle le plus long, par exemple, la longueur développée des cylindres de travail de la première cage de laminage multipliée par la réduction d'épaisseur, ou encore, la longueur développée du plus gros rouleau tension- neur ou déflecteur.In order to quickly detect and assess such defects and remedy their causes, it is customary to perform a visual inspection of one or both sides of a strip portion of sufficient length to present possible cyclic faults. The said length is generally chosen depending on the step of the longest cycle, for example, the developed length of the working rolls of the first rolling stand multiplied by the reduction in thickness, or the developed length of the largest tensioner roll or deflector.

La technique de pierrage, qui consiste à frotter une pierre abrasive sur la surface de la bande, permet de mettre en évidence des défauts discrets qui sont difficilement détectables à l'examen visuel même avec un éclairage rasant. Grâce au pierrage, les parties les plus en relief tel que, par exemple, les crêtes d'ondulations, les bavures d' indentations, ou les incrustations, subissent une légère abrasion qui suffit, par contraste, à les mettre plus facilement en évidence lors d'une inspection par vision.The technique of honing, which consists in rubbing an abrasive stone on the surface of the strip, makes it possible to highlight discrete defects that are hardly detectable by visual examination even with a grazing light. Thanks to the honing, the most relief parts such as, for example, the ridges of corrugations, indentation burrs, or incrustations, undergo a slight abrasion which is sufficient, by contrast, to put them more easily in evidence. a vision inspection.

Cette opération de pierrage est généralement réalisée manuellement par un opérateur qui doit se déplacer sur toute la largeur de la bande (qui peut atteindre près de deux mètres de large) et toute la longueur de l'échantillon (de 5 à 15 mètres selon les cas) . Ces déplacements devant être faits avec les plus extrêmes précautions pour ne pas générer soi- même des défauts, les opérateurs procèdent en se déplaçant sur les mains et les genoux. Une telle opération ne peut se concevoir que si la portion de bande à inspecter est immobile. Elle reste donc d'un usage limité aux lignes dédiées à une inspection et aux échantillons inspectés hors ligne. D'autre part elle exige que la bande soit en appui sur un support comme une table ou un convoyeur ce qui peut, dans certains cas, créer de « faux défauts » dus à la réaction du support au pierrage de la bande.This honing operation is usually done manually by an operator who must move the entire width of the strip (which can reach nearly two meters wide) and the entire length of the sample (from 5 to 15 meters depending on the case ). These movements must be made with extreme care not to generate defects themselves, the operators proceed by moving on the hands and knees. Such an operation can be conceived only if the band portion to be inspected is stationary. It therefore remains of limited use to lines dedicated to inspection and samples inspected offline. On the other hand it requires that the tape is supported on a support such as a table or a conveyor which can, in some cases, create "false defects" due to the reaction of the support to honing the tape.

Un dispositif automatisant une inspection par pierrage d'une surface de bande d'acier en défilement continu a été proposé selon KR2003-0077104. Le dit dispositif comporte entre autre: - un moyen de déplacement horizontal, transversal au sens de défilement de la bande, d'un élément abrasif, le dit moyen étant apte à effectuer un déplacement alternatif d'un bord à l'autre de la bande de largeur fixe, - un moyen permettant d'appliquer une pression homogène de l'élément abrasif sur la bande métallique supportée par un système de rouleaux.A device automating a honing inspection of a continuously moving steel strip surface has been proposed according to KR2003-0077104. The said device comprises among others: a means of horizontal displacement, transverse to the running direction of the strip, of an abrasive element, the said means being capable of effecting an alternating displacement from one edge to the other of the strip of fixed width; allowing to apply a homogeneous pressure of the abrasive element on the metal strip supported by a system of rollers.

Toutefois, la présente invention ne concerne pas un pierrage opéré pour une bande métallique de largeur fixe et supportée par un système de rouleaux, mais au contraire, un pierrage pour une bande de largeur arbitraire appliqué à une portion de bande suspendue entre au moins deux modules d'une installation de transformation. En outre, le dispositif selon KR2003-0077104 est une installation dédiée à l'inspection de bandes métalliques après transformation de la bande, alors que la présente invention s'applique à des bandes en cours de transformation dans une installation de transformation.However, the present invention does not concern a honing operated for a metal strip of fixed width and supported by a roller system, but on the contrary, a honing for a band of arbitrary width applied to a portion of strip suspended between at least two modules a processing facility. In addition, the device according to KR2003-0077104 is a facility dedicated to the inspection of metal strips after processing the strip, while the present invention applies to strips being processed in a processing facility.

Un but de la présente invention est de proposer une méthode de pierrage, libre d'artefacts et automatisée, d'au moins une face d'une bande métallique en défilement continu, pour laquelle le dit pierrage est effectué sur une portion de bande en suspension, par exemple entre deux rouleaux métalliques supportant la bande.An object of the present invention is to propose a method of free, artefact-free and automated honing, of at least one face of a metal strip in continuous scrolling, for which the said honing is performed on a portion of the strip in suspension for example between two metal rollers supporting the band.

Un autre but de l'invention est de permettre au dit pierrage de s'opérer sur une surface maximale d'une bande métallique de largeur arbitraire en cours de transformation dans une installation de transformation.Another object of the invention is to allow the said honing to operate on a maximum surface of a metal strip of arbitrary width during processing in a processing facility.

Afin de pourvoir mettre en œuvre la méthode selon l'invention, il sera également prévu de proposer un dispositif de pierrage. Dans ce but, un dispositif et une méthode sont proposés par le contenu des revendications 1 et 13.In order to implement the method according to the invention, it will also be provided to provide a honing device. For this purpose, a device and a method are provided by the contents of claims 1 and 13.

A partir d'une méthode de pierrage d'au moins une face d'une bande métallique en défilement continu, le dit pierrage étant adapté à augmenter une rugosité dans une zone de contact définie par un contact d'un élément abrasif avec la bande, et comportant les étapes suivantes :From a method of honing at least one face of a metal strip in continuous scrolling, said honing being adapted to increase a roughness in a contact zone defined by a contact of an abrasive element with the strip, and having the following steps:

- une mise en contact avec la bande métallique de l'élément abrasif,a contact with the metal strip of the abrasive element,

- un déplacement transversal alternatif motorisé de l'élément abrasif en contact avec la bande, le dit déplacement transversal étant perpendiculaire par rapport au sens de défilement de la bande et fixe par rapport au défilement de la bande,a motorized transverse reciprocating displacement of the abrasive element in contact with the strip, said transverse displacement being perpendicular with respect to the running direction of the strip and fixed with respect to the running of the strip,

- une pression de l'élément abrasif limitée à une portion de défilement de la bande, la méthode selon l'invention comporte un ajustement variable de la dite pression en fonction d'une tension longitudinale de la portion de bande de largeur arbitraire en état de suspension.a pressure of the abrasive element limited to a running portion of the strip, the method according to the invention comprises a variable adjustment of said pressure as a function of a longitudinal tension of the strip portion of arbitrary width in a state of suspension.

En particulier, la méthode selon l'invention est caractérisée en ce que le pierrage est opéré pour une durée déterminée pour une bande d'une largeur arbitraire en cours de transformation dans une installation de transformation. La durée de pierrage peut avantageusement être liée à l'intervalle de temps séparant les apparitions d'un défaut cyclique, en particulier, cette durée peut être déterminée en fonction du ou des rouleaux ayant la vitesse angulaire la plus faible de l'installation de transformation, afin d'apprécier des défauts pouvant provenir de tout autre rouleau ayant une vitesse angulaire supérieure. Un autre avantage relatif à un contrôle de la durée de pierrage est de pouvoir repérer quel élément de l'installation de transformation est à l'origine du défaut en utilisant un procédé de déconvolution basé sur la durée du pierrage et la position du défaut sur la portion de bande abrasée.In particular, the method according to the invention is characterized in that the honing is operated for a predetermined duration for a band of arbitrary width being processed in a processing facility. The honing time can advantageously be related to the time interval separating the appearances of a cyclic defect, in particular, this duration can be determined according to the roll or rollers having the lowest angular speed of the processing plant. , in order to appreciate defects that may come from any other roller having a higher angular velocity. Another advantage relating to a control of the duration of honing is to be able to identify which element of the processing plant is at the origin of the defect using a deconvolution method based on the duration of honing and the position of the defect on the abraded strip portion.

D'autre part, la méthode selon l'invention s'applique avantageusement à des bandes métalliques de largeurs arbitraires. En effet, la méthode selon l'invention est caractérisée par un déplacement transversal de l'élément abrasif adapté à la largeur arbitraire de la bande au moyen d'une détection de bords de la bande dans sa direction transverse. La dite détection permet de fixer des limites au déplacement transversal de l'élément abrasif. La dite détection peut avoir lieu en continu lors du défilement de la bande en cours de transformation, mais aussi, simplement, au commencement d'un cycle de pierrage ou à l'engagement d'une nouvelle bande. La largeur de bande serait ainsi mémorisée (enregistrement des abscisses des bords de bande) au début de l'opération de pierrage et pour toute sa durée. A la fin d'un cycle de pierrage, ou à une amorce de nouvelle bande, une nouvelle mesure de la largeur de bande peut automatiquement être effectuée.On the other hand, the method according to the invention advantageously applies to metal strips of arbitrary widths. Indeed, the method according to the invention is characterized by a transverse displacement of the abrasive element adapted to the arbitrary width of the strip by means of edge detection of the strip in its transverse direction. Said detection makes it possible to set limits to the transverse displacement of the abrasive element. Said detection can take place continuously during the scrolling of the band being transformed, but also, simply, at the beginning of a honing cycle or the engagement of a new band. The bandwidth would thus be memorized (recording of the abscissas of the band edges) at the beginning of the honing operation and for its duration. At the end of a honing cycle, or at a new tape start, a new bandwidth measurement can be automatically performed.

La méthode selon l'invention est en outre caractérisée en ce que la mise en contact est opérée à partir d'au moins une position de repos vers au moins une position de travail de l'élément abrasif. La dite position de repos assure avantageusement un accès sécurisé à l'élément abrasif pour un opérateur. En effet, c'est une position hors ligne, en dehors de l'emprise de la bande, qui permet par exemple un contrôle visuel de l'élément abrasif, ou encore le changement rapide ma- nuel/automatisé de l'élément abrasif en cas d'usure ayant dépassé une valeur seuil. La position de travail de l'élément abrasif se trouve quant à elle au-dessus de la bande, caractérisée par au moins un état en contact de l'élément abrasif avec la bande, ainsi qu'au moins un état hors contact de l'élément abrasif au-dessus de la bande. Idéalement, un transfert horizontal permet de déplacer l'élément abrasif de sa position de repos à sa position de travail au-dessus de la bande, préférentiellement dans l'axe médian de cette dernière. Un transfert vertical permet ensuite de passer d'un état hors contact à un état en contact de l'élément abrasif avec la bande, ce dernier état en contact permettant à proprement parler un travail d'abrasion de la part de l'élément abrasif en contact avec la bande.The method according to the invention is further characterized in that the bringing into contact is operated from at least one rest position to at least one working position of the abrasive element. Said rest position advantageously provides secure access to the abrasive element for an operator. In fact, it is an off-line position, outside the grip of the strip, which allows, for example, a visual check of the abrasive element, or the manual / automated quick change of the abrasive element. case of wear having exceeded a threshold value. The working position of the abrasive element is above the web, characterized by at least one contacting state of the abrasive element with the web, as well as at least one non-contact state of the abrasive element. abrasive element above the band. Ideally, a horizontal transfer makes it possible to move the abrasive element from its rest position to its working position above the band, preferably in the median axis thereof. A vertical transfer then makes it possible to go from an off-contact state to a state in contact with the abrasive element with the strip, the latter state being in contact allowing, strictly speaking, an abrasive work on the part of the abrasive element. contact with the band.

Dans ce cadre, la méthode selon l'invention est caractérisée en ce que la pression est ajustable en position de repos ou/et en position de travail. Cela permet par exemple de prérégler l'opération de pierrage pour des bandes métalliques aux caractéristiques connues en position de repos, mais aussi d'ajuster la pression en cours de pierrage en position de travail lorsque les caractéristiques de bandes sont nouvelles. En particulier, la méthode selon l'invention est caractérisée par une pression ajustable en fonction de la tension longitudinale de la bande par ajout d'au moins une contrainte à un degré de liberté vertical de l'élément abrasif. Un exemple simple de contrainte serait dans ce cas une adjonction d'au moins une masse à un mécanisme permettant un déplacement vertical de l'élément abrasif. Un autre exemple serait un réglage manuel/automatisé en précontrainte d'au moins un res- sort jouant un rôle dans l'application de la pression de l'élément abrasif sur la surface de la bande. L'ajustement de cette pression permettrait avantageusement de conserver une qualité de contact avec la surface de la bande proche de la pratique humaine, avec une force de pierrage variant idéale- ment entre 5 et 50 N pour une surface de 150x50mm.In this context, the method according to the invention is characterized in that the pressure is adjustable in the rest position and / or in the working position. This makes it possible, for example, to preset the honing operation for metal strips with known characteristics in the rest position, but also to adjust the pressure during honing in the working position when the band characteristics are new. In particular, the method according to the invention is characterized by an adjustable pressure as a function of the longitudinal tension of the strip by adding at least one stress to a vertical degree of freedom of the abrasive element. A simple example of stress would be in this case an addition of at least one mass to a mechanism allowing a vertical displacement of the abrasive element. Another example would be a manual / automated preload adjustment of at least one spring having a role in applying the pressure of the abrasive element to the surface of the web. The adjustment of this pressure would advantageously maintain a quality of contact with the surface of the band close to human practice, with a piercing force ideally varying between 5 and 50 N for a surface of 150x50mm.

Egalement, la méthode selon l'invention est caractérisée en ce qu'une corrélation entre une vitesse de défilement de la bande et une vitesse de déplacement transversal de l'élément abrasif régule le déplacement de l'élément abrasif. En parti- culier, la vitesse de déplacement transversal de l'élément abrasif est définie en fonction d'une géométrie de la zone de contact, d'une géométrie de la bande et de la vitesse de défilement de la bande. Idéalement, dans le cas d'un élément abrasif de forme rectangulaire de longueur (Lp) dans le sens de défilement de la bande et de largeur (Ip) , la vitesse de déplacement transversal est fixée à une valeur égale au quotient [Vb • (lb-2r-lp) ] /Lp, défini par une largeur (Ib) de la bande, la vitesse de défilement (Vb) de la bande et une dis- tance de retrait (r) d'un bord de la bande par rapport à un bord, parallèle et le plus proche, de l'élément abrasif à chaque extrémité de son déplacement transversal. Cette corrélation permet avantageusement de pierrer toute la surface de la bande comprise à une distance de retrait (r) des bords de bande. De plus, la méthode selon l'invention comporte avantageusement un réglage de la vitesse de défilement (Vb) de la bande dans au moins une partie de l'installation de transformation en fonction de la vitesse de déplacement transversal de l'élément abrasif. Cette caractéristique permet d'adapter la vitesse de défilement de la bande aux capacités du dispositif de pierrage et/ou inversement.Also, the method according to the invention is characterized in that a correlation between a running speed of the strip and a transverse displacement speed of the abrasive element regulates the displacement of the abrasive element. In part- In particular, the transverse displacement speed of the abrasive element is defined as a function of a geometry of the contact zone, a geometry of the strip and the speed of travel of the strip. Ideally, in the case of an abrasive element having a rectangular shape of length (Lp) in the running direction of the belt and width (Ip), the transverse displacement speed is set to a value equal to the quotient [Vb • ( lb-2r-lp)] / Lp, defined by a width (Ib) of the band, the running speed (Vb) of the band and a distance of withdrawal (r) of an edge of the band relative to at one edge, parallel and the nearest, of the abrasive element at each end of its transverse displacement. This correlation advantageously makes it possible to pierce the entire surface of the strip included at a withdrawal distance (r) from the strip edges. In addition, the method according to the invention advantageously comprises an adjustment of the running speed (Vb) of the strip in at least a portion of the conversion plant as a function of the transverse displacement speed of the abrasive element. This characteristic makes it possible to adapt the running speed of the band to the capabilities of the honing device and / or vice versa.

Dans ce cadre, la méthode selon l'invention est en particulier caractérisée en ce qu'un engagement de la méthode de pierrage et la durée de pierrage soient configurés en fonction d'une disponibilité et d'une capacité d'accumulation totale ou résiduelle d'au moins un dispositif accumulateur de bande situé en amont de l'élément abrasif dans l'installation de transformation selon le sens de défilement de la bande. En effet, dans le cas où, par exemple, la vitesse de déplacement transversal de l'outil de pierrage ne permettrait pas de balayer toute la largeur de la bande au rythme de la vitesse de défilement de la bande dans l'installation de transformation, il serait alors nécessaire de réduire la vitesse de la bande dans la zone de pierrage via le dispositif accumulateur de bande. Un échange bidirectionnel d'informations entre au moins un dispositif accumulateur, un organe de contrôle de l'installation et un organe de contrôle du dispositif de pierrage peut avantageusement permettre une configuration ma- nuelle, voire automatique, et/ou un réglage manuel, voire automatisé, des paramètres visant à une opération de pierrage performante et fonctionnelle.In this context, the method according to the invention is characterized in that a commitment of the honing method and the duration of honing are configured according to an availability and a capacity of total or residual accumulation of at least one tape accumulator device located upstream of the abrasive element in the processing installation in the direction of travel of the tape. Indeed, in the case where, for example, the transverse movement speed of the honing tool would not sweep the entire width of the band at the rate of the tape speed in the processing plant, it would then be necessary to reduce the speed of the band in the honing zone via the accumulator device of bandaged. A bidirectional exchange of information between at least one accumulator device, a control member of the installation and a control member of the honing device can advantageously allow manual configuration, even automatic, and / or manual adjustment, or even automated, parameters aiming at a performing and functional honing operation.

En particulier, la méthode selon l'invention est caractérisée en ce qu'un dépassement d'un seuil d'usure de l'élément abrasif est détecté, signalé et apte à entraîner l'interruption du pierrage. Idéalement, lors de la dite interruption, l'élément abrasif est transféré verticalement hors du contact avec la bande, puis horizontalement dans sa position de re- pos, position dans laquelle par exemple un opérateur pourrait vérifier en toute sécurité l'état d'usure de l'élément abrasif, et le cas échéant, le remplacer. Dans le cas d'une automatisation complète de la méthode de pierrage, le remplacement de l'élément abrasif pourrait être automatisé et, en particulier, couplé au dispositif accumulateur de bande afin de ralentir le défilement de la bande en cours de transformation lors du remplacement de l'élément abrasif usé. L'avantage sous jacent de la méthode est d'une part de ne pas interrompre la transformation de la bande lors du remplace- ment de l'élément abrasif, et aussi, d'autre part, de minimiser la surface non pierrée par ralentissement de la vitesse de défilement de la bande lors d'un couplage avec un dispositif accumulateur de bande.In particular, the method according to the invention is characterized in that an exceeding of a wear threshold of the abrasive element is detected, reported and capable of causing the interruption of honing. Ideally, during said interruption, the abrasive element is transferred vertically out of contact with the belt, then horizontally in its rest position, a position in which for example an operator could safely check the state of wear. abrasive element, and if necessary, replace it. In the case of complete automation of the honing method, the replacement of the abrasive element could be automated and, in particular, coupled to the tape accumulator device to slow down the movement of the tape being processed during the replacement. worn abrasive element. The underlying advantage of the method is firstly not to interrupt the transformation of the strip during the replacement of the abrasive element, and also, secondly, to minimize the uncured surface by slowing down the abrasive element. the speed of travel of the web when coupled with a tape accumulator device.

La méthode selon l'invention est en outre caractérisée en ce que le pierrage est effectué en amont d'une station d'inspection par vision. Il peut s'agir par exemple d'une inspection purement visuelle, ou encore d'une inspection visuelle aidée par scrutation vidéo. L'appréciation, voire le résultat, de la dite inspection peut par exemple être direc- teitient répercuté au fonctionnement de l'installation de transformation, requérant par exemple une interruption de la transformation de la bande, ou son ralentissement (via accumulation de la bande dans un dispositif accumulateur) , ou en- core, la vérification d'une partie des éléments de l'installation de transformation en contact direct avec la bande, afin de déterminer la cause des défauts de bande observés lors de l'inspection et d'y remédier.The method according to the invention is further characterized in that the honing is performed upstream of an inspection station by vision. This may be for example a purely visual inspection, or a visual inspection aided by video scanning. The assessment, or even the result, of the said inspection may, for example, be directly This is reflected in the operation of the processing plant, requiring, for example, an interruption of the transformation of the tape, or its slowing down (via accumulation of the tape in an accumulator device), or again the verification of a part of elements of the processing plant in direct contact with the belt, in order to determine the cause of the tape defects observed during the inspection and to remedy them.

A partir d'un dispositif de pierrage d'au moins une face d'une bande métallique en défilement continu comportant:From a honing device of at least one face of a continuous-moving metal strip comprising:

- un moyen de positionnement vertical d'un élément abrasif en surface de ladite bande, - un moyen de déplacement horizontal de l'élément abrasif transversalement au défilement de ladite bande, le dit moyen étant accouplable au moyen de positionnement vertical et apte à effectuer un déplacement alternatif d'un bord à l'autre de la bande, - un premier moyen permettant d'appliquer une pression homogène de l'élément abrasif sur la bande métallique, le dispositif selon l'invention est caractérisé en ce que le dit premier moyen permet d'appliquer une pression homogène sur une portion suspendue de bande de largeur arbitraire et en défilement, et est accouplable à un deuxième moyen permettant d'ajuster ladite pression en fonction de la tension longitudinale de la portion suspendue de bande.a means for vertically positioning an abrasive element on the surface of said strip, means for horizontally moving the abrasive element transversely to the running of said strip, said means being connectable to the vertical positioning means and capable of performing a alternating movement from one edge to the other of the strip, - a first means for applying a homogeneous pressure of the abrasive element on the metal strip, the device according to the invention is characterized in that said first means allows to apply a homogeneous pressure on a suspended portion of band of arbitrary width and scrolling, and is coupled to a second means for adjusting said pressure as a function of the longitudinal tension of the suspended band portion.

En particulier, le dispositif selon l'invention est caractérisé en ce que le dit dispositif de pierrage est intégrable à une installation de transformation de bandes métalliques de largeurs arbitraires afin d'effectuer le dit pierrage pour une durée déterminée sur une bande en cours de transforma- tion. Combiné à une station d'inspection visuelle, par exem- pie une observation des défauts de la bande par un opérateur, avec ou sans l'aidé de moyens de scrutation vidéo, le dispositif de pierrage permet d'éviter un encombrement dû à une installation annexe dédiée spécialement à l'inspection (par pierrage) de bandes métalliques transformées. De plus, le dispositif, effectuant un pierrage en temps réel sur une bande en cours de transformation, a l'avantage de réduire le temps de réaction avant l'observation de défauts dans une bande métallique, permettant ainsi, par exemple, une diminu- tion de la quantité de déchets de bande non conforme aux tolérances de laminage, des économies de coût et de matériel.In particular, the device according to the invention is characterized in that the said honing device can be integrated into an installation for transforming metal strips of arbitrary widths in order to carry out the said honing for a determined duration on a strip being processed. - tion. Combined with a visual inspection station, for example If an operator obtains an observation of the defects of the tape, with or without the aid of video scanning means, the honing device makes it possible to avoid congestion due to an additional installation dedicated specifically to the inspection (by honing) of converted metal strips. In addition, the device, performing a real-time honing on a strip being processed, has the advantage of reducing the reaction time before the observation of defects in a metal strip, thus allowing, for example, a decrease in the amount of strip waste not meeting the rolling tolerances, cost and material savings.

En outre, le dispositif selon l'invention est caractérisé en ce que le dit moyen de déplacement horizontal permet de dé- placer l'élément abrasif d'au moins une position de repos à au moins une position de travail, la dite position de repos se trouvant en dehors de l'emprise de la bande afin de permettre un entretien sécurisé de l'élément abrasif pour un opérateur, et la dite position de travail se trouvant au des- sus de la bande et comportant au moins un état en contact de l'élément abrasif avec la bande, ainsi qu'au moins un état hors contact de l'élément abrasif avec la bande. La position de repos, hors ligne, de l'élément abrasif permet à un opérateur de vérifier en toute sécurité son état, mais aussi, de contrôler une partie au moins du moyen de déplacement horizontal. Ces opérations, vérification et/ou contrôle, ont l'avantage d'être réalisées en ne perturbant pas le processus de transformation de la bande.In addition, the device according to the invention is characterized in that the said horizontal displacement means makes it possible to move the abrasive element from at least one rest position to at least one working position, the said rest position. located outside the belt's grip to allow safe maintenance of the abrasive element for an operator, and said working position at the top of the belt and having at least one state in contact with the abrasive element with the band, as well as at least one non-contact state of the abrasive element with the band. The off-line rest position of the abrasive element allows an operator to safely check its condition, but also to control at least part of the horizontal moving means. These operations, verification and / or control, have the advantage of being realized by not disturbing the process of transformation of the band.

En particulier, le dispositif selon l'invention est caractérisé en ce que le dit moyen de déplacement horizontal comporte au moins un chariot horizontal apte à se déplacer transversalement à la bande sur une distance supérieure à la largeur de celle-ci et incluant les dites positions de repos et de travail. Le dit moyen de positionnement vertical corn- porte au moins un organe de transfert vertical disposé entre le chariot et un support d'outil, le dit support d'outil ayant une position verticale fixe durant le pierrage et supportant le premier et deuxième moyen de pression. Idéalement, l'organe de transfert vertical comporte au moins un vérin actionnant un ensemble de biellettes disposées en parallélogramme déformable.In particular, the device according to the invention is characterized in that said horizontal displacement means comprises at least one horizontal carriage adapted to move transversely to the strip over a distance greater than the width thereof and including said positions. rest and work. Said vertical positioning means carries at least one vertical transfer member disposed between the carriage and a tool support, said tool support having a fixed vertical position during honing and supporting the first and second pressure means. Ideally, the vertical transfer member comprises at least one jack actuating a set of links arranged in deformable parallelogram.

Le dispositif selon l'invention est en particulier caractéri- se en ce que le dit premier moyen de pression comporte au moins une platine porte-outil supportant l'élément de pierrage et solidarisée au dit support d'outil au moyen d'au moins une glissière verticale dans laquelle la platine porte- outil peut coulisser librement. Le premier moyen de pression permet la mise en contact de l'élément abrasif avec la bande, tandis que le deuxième moyen de pression permet d'ajuster la dite pression à la tension longitudinale de la portion de bande. Ce dispositif de pierrage se caractérise donc par une pression ajustable apte à être supportée par la seule tension de la bande défilant par exemple entre au moins deux dispositifs ayant la capacité de supporter la bande, comme par exemple un dispositif tensionneur ou déflecteur en amont du pierrage et un dispositif enrouleur en aval. L'avantage d'un tel dispositif est d'éviter des artefacts dus à un pierrage ré- alise sur une bande en appui sur un support comme une table, un convoyeur ou des rouleaux. En effet, l'appui de la bande sur un support lors du pierrage crée généralement de faux défauts dus à la réaction du support au pierrage de la bande. De plus, le pierrage automatique est moins pénible pour l'opérateur qui peut alors se concentrer sur la qualité de transformation de la bande.The device according to the invention is particularly characterized in that said first pressure means comprises at least one tool plate supporting the honing element and secured to said tool support by means of at least one vertical slide in which the tool plate can slide freely. The first pressure means makes it possible to bring the abrasive element into contact with the strip, while the second pressure means makes it possible to adjust said pressure to the longitudinal tension of the strip portion. This honing device is thus characterized by an adjustable pressure capable of being supported by the single tension of the strip passing for example between at least two devices having the capacity to support the strip, such as for example a tensioning device or deflector upstream of the honing and a retractor device downstream. The advantage of such a device is to avoid artefacts due to honing carried out on a strip resting on a support such as a table, a conveyor or rollers. Indeed, the support of the band on a support during honing generally creates false defects due to the reaction of the support to the honing of the band. In addition, automatic honing is less painful for the operator who can then focus on the quality of processing of the tape.

En particulier, le dispositif selon l'invention est caractérisé en ce qu'un système de détection détecte les bords de la bande et transmet un signal relatant la dite détection au moyen de déplacement horizontal afin d'adapter avantageusement le dit déplacement de l'élément abrasif à la largeur arbitraire de la bande. Idéalement, le déplacement horizontal est limité à une course d'une valeur égale à (Lb) -((Ip) + (2r) ) , définie par une différence entre la largeur de bande (Lb) et la somme d'une largeur (Ip) de l'élément abrasif avec une distance (2r) égale au double d'une distance de retrait (r) d'un bord de la bande par rapport à un bord, parallèle et le plus proche, de l'élément abrasif à chague extrémité de son déplacement transversal. Le système de détection peut en particulier effectuer la mesure de la largeur de la bande en continu sur une bande en cours de transformation, mais aussi au commencement d'un cycle de pierrage d'une durée déterminée, ou à l'amorce d'une bande, ou encore, sur demande suite à la décision d'un opérateur. Idéalement, le dit système de détection comporte au moins un détecteur, en particulier, un détecteur à distance, libre de contact, apte à détecter les bords de la bande lors du déplacement transversal de l'élément abrasif, le dit détecteur étant solidaire d'un élé- ment ayant une position verticale fixe durant le pierrage et appartenant au moyen de positionnement vertical. Avantageusement, le dit élément ayant une position verticale fixe peut être le support d'outil.In particular, the device according to the invention is characterized in that a detection system detects the edges of the strip and transmits a signal relating said detection to the horizontal displacement means in order to advantageously adapt said displacement of the abrasive element to the arbitrary width of the strip. Ideally, the horizontal displacement is limited to a stroke of a value equal to (Lb) - ((Ip) + (2r)), defined by a difference between the bandwidth (Lb) and the sum of a width ( Ip) of the abrasive element with a distance (2r) equal to twice a distance of withdrawal (r) of an edge of the strip relative to a edge, parallel and the nearest, of the abrasive element to each end of its transverse displacement. In particular, the detection system can measure the width of the strip continuously on a strip being processed, but also at the beginning of a honing cycle of a determined duration, or at the beginning of a band or, on request, following the decision of an operator. Ideally, said detection system comprises at least one detector, in particular a contact-free remote sensor capable of detecting the edges of the strip during transverse displacement of the abrasive element, said detector being integral with an element having a fixed vertical position during honing and belonging to the vertical positioning means. Advantageously, said element having a fixed vertical position may be the tool support.

Egalement, le dispositif selon l'invention est caractérisé en ce que le deuxième moyen de pression comporte au moins un détecteur, en particulier, un détecteur à distance, libre de contact, apte à détecter le niveau horizontal de l'élément abrasif, le dit détecteur étant solidaire d'un élément ayant une position verticale fixe durant le pierrage, idéalement appartenant au moyen de positionnement vertical. La dite détection permet en particulier de contrôler d'une manière simple une usure de l'élément abrasif en comparant le niveau horizontal mesuré à une valeur seuil caractérisant un niveau de référence. Idéalement, un système de détection détecte et si- gnale une usure de l'élément abrasif approchant de la valeur seuil, et, le cas échéant, interrompt le pierrage lorsque la dite valeur seuil est dépassée. En particulier, en cas d'interruption du pierrage dû à une usure de l'élément abra- sif, le dit élément abrasif retourne à sa position de repos où il sera échangé pour un nouvel élément abrasif, soit manuellement par un opérateur, soit de manière automatisée.Also, the device according to the invention is characterized in that the second pressure means comprises at least one detector, in particular a distance detector, free of contact, able to detect the horizontal level of the abrasive element, says detector being secured to an element having a fixed vertical position during honing, ideally belonging to the vertical positioning means. Said detection makes it possible in particular to control in a simple manner a wear of the abrasive element by comparing the measured horizontal level with a threshold value characterizing a reference level. Ideally, a detection system will detect and equal to a wear of the abrasive element approaching the threshold value, and, if necessary, interrupts the honing when said threshold value is exceeded. In particular, in case of interruption of honing due to wear of the abrasive element, said abrasive element returns to its rest position where it will be exchanged for a new abrasive element, either manually by an operator, or automated way.

En particulier, le dispositif selon l'invention est caracté- risé en ce qu'un système de réglage corrèle une vitesse de défilement de la bande à une vitesse de déplacement transversal de l'élément abrasif afin d'adapter (automatiquement) la vitesse de défilement de la bande aux capacités de pierrage du dispositif de pierrage dans au moins une partie de l'installation de transformation. Idéalement, le dit réglage est caractérisé par au moins un échange d'au moins un signal de réglage entre un système de contrôle de l'installation et ledit dispositif de pierrage. Avantageusement, le système de réglage permettrait par exemple de diminuer la vitesse de dé- filement de la bande en utilisant un dispositif accumulateur de bande en amont du pierrage afin de permettre une inspection visuelle détaillée de la bande ou le changement d'un élément abrasif usé.In particular, the device according to the invention is characterized in that an adjustment system correlates a running speed of the strip at a transverse displacement speed of the abrasive element in order to (automatically) adjust the speed of the abrasive element. moving the band to the honing capabilities of the honing device in at least a portion of the processing plant. Ideally, said adjustment is characterized by at least one exchange of at least one adjustment signal between a control system of the installation and said honing device. Advantageously, the adjustment system would for example make it possible to reduce the speed of the strip by using a tape accumulator device upstream of the honing to allow a detailed visual inspection of the strip or the change of a worn abrasive element. .

Finalement, un exemple de réalisation et d'application est fourni à l'aide de:Finally, an exemplary embodiment and application is provided using:

Figure 1 exemple de réalisation de dispositif de pier- rage effectué sur une bande suspendue de largeur arbitraire.Figure 1 embodiment example of piercing device performed on a suspended band of arbitrary width.

A titre d'exemple, la figure 1 montre un dispositif (7) de pierrage d'au moins une face d'une bande métallique (1) sus- pendue, en défilement continu et comportant: - un moyen (73) de positionnement vertical d'un élément , abrasif (71) en surface de ladite bande,By way of example, FIG. 1 shows a device (7) for honing at least one face of a metal strip (1) suspended in continuous movement and comprising: means (73) for vertical positioning of an abrasive element (71) on the surface of said strip,

- un moyen (74) de déplacement horizontal de l'élément abrasif (71) transversalement au défilement de ladite bande, le dit moyen (74) étant accouplable au moyen- means (74) for horizontal displacement of the abrasive element (71) transversely to the running of said strip, said means (74) being coupled to the means

(73) de positionnement vertical et apte à effectuer un déplacement alternatif d'un bord à l'autre de la bande,(73) vertical positioning and adapted to perform an alternating movement from one edge to another of the strip,

- un premier moyen (72) permettant d'appliquer une pression homogène de l'élément abrasif sur la bande métal- lique, caractérisé en ce que le dit premier moyen (72) permet d'appliquer une pression homogène sur une portion suspendue de bande en défilement et est accouplable à un deuxième moyen (75) permettant d'ajuster ladite pression en fonction de la tension longitudinale de la portion suspendue de bande.first means (72) for applying a homogeneous pressure of the abrasive element on the metal strip, characterized in that said first means (72) makes it possible to apply a homogeneous pressure to a suspended portion of the strip; in movement and is coupled to a second means (75) for adjusting said pressure as a function of the longitudinal tension of the suspended portion of tape.

En particulier, le moyen (74) de déplacement horizontal comporte un chariot horizontal apte à se déplacer transversalement à la bande sur une distance supérieure à la largeur de celle-ci et incluant une position de repos et de travail. Le moyen (73) de positionnement vertical comporte un organe (732) de transfert vertical disposé entre le chariot et un support (731) d'outil, le dit support d'outil ayant une position verticale fixe durant le pierrage et supportant le pre- mier (72) et deuxième (75) moyen de pression. Le premier moyen (72) de pression comporte une platine porte-outil (721) supportant l'élément de pierrage et solidarisée au dit support (731) d'outil au moyen d'au moins une glissière verticale (722) dans laquelle la platine porte-outil peut coulis- ser librement. Une position de travail en contact de l'élément abrasif sur la surface est illustrée par le dispositif (7) de pierrage, alors que le dispositif (8) de pierrage illustre une position de travail de l'élément abrasif hors du contact de la bande. En résumé, la méthode et le dispositif selon l'invention présentent plusieurs avantages par rapport aux méthodes et dispositifs existant en ce que:In particular, the means (74) of horizontal displacement comprises a horizontal carriage adapted to move transversely to the strip over a distance greater than the width thereof and including a rest position and work. The vertical positioning means (73) comprises a vertical transfer member (732) disposed between the carriage and a tool support (731), said tool support having a fixed vertical position during honing and supporting the first one. first (72) and second (75) pressure means. The first pressure means (72) comprises a tool plate (721) supporting the honing element and secured to said tool support (731) by means of at least one vertical slide (722) in which the plate tool holder can slide freely. A working position in contact with the abrasive element on the surface is illustrated by the honing device (7), while the honing device (8) illustrates a working position of the abrasive element out of the contact of the strip. . In summary, the method and the device according to the invention have several advantages over existing methods and devices in that:

- ils assurent un pierrage automatisé, absent d'artefacts provenant d'un support de bande positionné en dessous de l'élément abrasif,they provide automated honing, absent artifacts from a tape support positioned below the abrasive element,

- ils assurent un pierrage sur une portion de bande en état de suspension sous l'élément abrasif, la dite por- tion de bande étant tendue entre au moins un module en amont et un module en aval de l'élément abrasif,they perform a honing on a portion of the strip in a state of suspension under the abrasive element, said strip portion being stretched between at least one module upstream and a module downstream of the abrasive element,

- ils assurent un faible encombrement du fait qu'aucune autre installation n'est nécessaire afin de dérouler/enrouler une bande dans une station d' inspection par pierrage annexe,they provide a small footprint because no other installation is necessary in order to unroll / wind up a strip in an inspection station by means of additional coring,

- ils permettent un ajustement de la pression de l'élément abrasif sur la surface de la bande en fonction de la tension longitudinale de la portion de bande suspendue,they allow an adjustment of the pressure of the abrasive element on the surface of the strip as a function of the longitudinal tension of the suspended band portion,

- ils permettent un contrôle sécurisé pour un opérateur de l'état de l'élément abrasif,they allow a secure control for an operator of the state of the abrasive element,

- ils permettent un pierrage réalisé sur une bande en cours de transformation, ainsi qu'un contrôle ou une maintenance d'au moins une partie du dispositif de pierrage réalisés lorsque la bande abrasée est en cours de transformation, perturbant ainsi au minimum le défilement de la bande,- They allow honing performed on a strip during processing, and a check or maintenance of at least a portion of the honing device made when the abraded strip is being processed, thereby disrupting at least the scrolling of the band,

- ils permettent d'adapter le déplacement transversal de l'élément abrasif à des largeurs de bande arbitraires,they make it possible to adapt the transverse displacement of the abrasive element to arbitrary bandwidths,

- ils permettent d'adapter, dans au moins une partie de l'installation de transformation, la vitesse de défilement de la bande aux capacités de pierrage du dispositif de pierrage, en particulier, de corréler la vitesse de défilement de la bande et la vitesse de déplacement transversal de l'élément abrasif, afin de réaliser, par exemple, un pierrage permettant une inspection fiable des défauts de la bande,- They allow to adapt, in at least a portion of the processing facility, the running speed of the band to the honing capabilities of the honing device, in particular, to correlate the tape speed and speed transverse displacement of the abrasive element, in order to achieve, by for example, honing for reliable inspection of tape defects,

- ils permettent d'effectuer un pierrage d'une durée et d'une pression déterminées pour une bande en cours de transformation,they allow to perform a honing of a determined duration and pressure for a band being processed,

- ils diminuent les déclassements coûteux de bandes en permettant une correction rapide des défauts de bande,they reduce the costly downgrading of belts by allowing rapid correction of the tape defects,

- ils assurent séquentiellement, le déplacement horizontal motorisé de l'élément de pierrage d'une position de re- pos à une position de travail au-dessus de la bande, le déplacement vertical motorisé de l'élément de pierrage de sa position de travail au-dessus de la bande à sa position de travail en contact avec la bande, un déplacement transversal alternatif de l'élément abrasif d'un bord à l'autre de la bande pour une durée déterminée et entre deux limites de course fixées par un système de détection de bords de bande, un déplacement vertical de l'élément abrasif hors du contact de la bande par exemple en fin de la durée de pierrage, et finalement, un retour de l'élément abrasif à sa position de repos par déplacement horizontal depuis sa position de travail au- dessus de la bande. they sequentially provide the motorized horizontal movement of the honing element from a rest position to a working position above the belt, the motorized vertical movement of the honing element from its working position. above the web at its working position in contact with the web, a reciprocating transversal displacement of the abrasive element from one edge to the other of the web for a specified time and between two stroke limits set by a web strip edge detection system, a vertical displacement of the abrasive element out of the contact of the strip for example at the end of the honing time, and finally, a return of the abrasive element to its rest position by horizontal displacement from his working position above the band.

Claims

Revendications claims 1. Méthode de pierrage d'au moins une face d'une bande métallique (1) en défilement continu, le dit pierrage étant adapté à augmenter une rugosité dans une zone de contact définie par un contact d'un élément abrasif (71) avec la bande, et comportant les étapes suivantes :A method of honing at least one face of a metal strip (1) in continuous scrolling, said honing being adapted to increase a roughness in a contact zone defined by a contact of an abrasive element (71) with the tape, and comprising the following steps: - une mise en contact avec la bande métallique de l'élément abrasif, - un déplacement transversal alternatif motorisé de l'élément abrasif en contact avec la bande, le dit déplacement transversal étant perpendiculaire par rapport au sens de défilement de la bande et fixe par rapport au défilement de la bande, - une pression de l'élément abrasif limitée à une portion de défilement de la bande, caractérisée parcontact with the metal strip of the abrasive element; motorized transverse displacement of the abrasive element in contact with the strip, said transverse displacement being perpendicular to the running direction of the strip and fixed by relative to the running of the strip, - a pressure of the abrasive element limited to a running portion of the strip, characterized by - un ajustement variable de la dite pression en fonction d'une tension longitudinale de la portion de bande en état de suspension.a variable adjustment of the said pressure as a function of a longitudinal tension of the portion of the strip in the state of suspension. 2. Méthode selon revendication 1, caractérisée en ce que le pierrage est opéré pour une durée déterminée pour une bande d'une largeur arbitraire en cours de transforma- tion dans une installation de transformation.2. Method according to claim 1, characterized in that the honing is carried out for a predetermined duration for a band of arbitrary width being processed in a processing plant. 3. Méthode selon une des revendications 1 ou 2, caractérisée en ce que le déplacement transversal de l'élément abrasif est adapté à la largeur arbitraire de la bande au moyen d'une détection de bords de la bande dans sa direction transverse, la dite détection permettant de fixer des limites au déplacement transversal, et s 'effectuant idéalement à un commencement d'un cycle de pierrage. 3. Method according to one of claims 1 or 2, characterized in that the transverse displacement of the abrasive element is adapted to the arbitrary width of the strip by means of a detection of edges of the strip in its transverse direction, the said detection to set limits to the transverse displacement, and ideally performed at the beginning of a honing cycle. 4. Méthode selon une des revendications 1 à 3, caractérisée en ce que la mise en contact est opérée à partir d'au moins une position de repos vers au moins une position de travail de l'élément abrasif, la dite position de re- pos assurant un accès sécurisé à l'élément abrasif pour un opérateur, et la dite position de travail assurant au moins un état en contact de l'élément abrasif avec la bande, ainsi qu'au moins un état hors contact de l'élément abrasif au-dessus de la bande.4. Method according to one of claims 1 to 3, characterized in that the contacting is carried out from at least one rest position to at least one working position of the abrasive element, said recess position being pos ensuring secure access to the abrasive element for an operator, and said working position ensuring at least one state in contact with the abrasive element with the belt, and at least one non-contact state of the abrasive element above the band. 5. Méthode selon revendication 4, caractérisée en ce que la pression est ajustable en position de repos ou/et en position de travail.5. Method according to claim 4, characterized in that the pressure is adjustable in the rest position and / or in the working position. 6. Méthode selon une des revendications 1 à 5, caractérisée en ce que la pression est ajustable en fonction de la tension lonqitudinale de la bande par ajout d'au moins une contrainte à un degré de liberté vertical de l'élément abrasif, idéalement en ce que la dite contrainte corresponde à une adjonction d'au moins une masse à un mécanisme permettant un déplacement vertical de l'élément abrasif.6. Method according to one of claims 1 to 5, characterized in that the pressure is adjustable as a function of the longitudinal tension of the strip by adding at least one stress to a vertical degree of freedom of the abrasive element, ideally in what the said stress corresponds to an addition of at least one mass to a mechanism allowing a vertical displacement of the abrasive element. 7. Méthode selon une des revendications 1 à 6, caractérisée en ce qu'une corrélation entre une vitesse de défilement de la bande et une vitesse de déplacement transversal de l'élément abrasif régule le déplacement de l'élément abrasif.7. Method according to one of claims 1 to 6, characterized in that a correlation between a running speed of the strip and a transverse speed of displacement of the abrasive element regulates the displacement of the abrasive element. 8. Méthode selon une des revendications 1 à 7, caractérisée en ce que la vitesse de déplacement transversal de l'élément abrasif est définie en fonction d'une géométrie de la zone de contact, d'une géométrie de la bande et de la vitesse de défilement de la bande, en particu- lier en ce que la vitesse de déplacement transversal d'un élément abrasif de forme rectangulaire de longueur (Lp) dans le sens de défilement de la bande et de largeur (Ip) est fixée à une valeur égale au quotient [Vb • (lb-2r-lp) ] /Lp, défini par une largeur (Ib) de la bande, la vitesse de défilement (Vb) de la bande et une distance de retrait (r) d'un bord de la bande par rapport à un bord, parallèle et le plus proche, de l'élément abrasif à chaque extrémité de son déplacement transversal.8. Method according to one of claims 1 to 7, characterized in that the transverse displacement speed of the abrasive element is defined as a function of a geometry of the contact zone, a geometry of the band and the speed of the web, in particular in that the speed of transverse displacement of an abrasive element of rectangular shape of length (Lp) in the running direction of the band and width (Ip) is set to a value equal to the quotient [Vb • (Ib-2r-lp)] / Lp, defined by a width (Ib) of the band, the running speed (Vb) of the band and a withdrawal distance (r) of an edge of the band with respect to an edge, parallel and the nearest, of the abrasive element at each end of its transverse displacement. 9. Méthode selon une des revendications 1 à 8, caractérisée par un réglage de la vitesse de défilement (Vb) de la bande dans au moins une partie de l'installation de transformation en fonction de la vitesse de déplacement transversal de l'élément abrasif.9. Method according to one of claims 1 to 8, characterized by an adjustment of the running speed (Vb) of the strip in at least a portion of the conversion plant according to the transverse speed of displacement of the abrasive element. . 10. Méthode selon une des revendications 1 à 9, caractérisée en ce qu'un engagement de la méthode de pierrage et la durée de pierrage soient configurés en fonction d'une disponibilité et d'une capacité d'accumulation d'au moins un dispositif accumulateur de bande situé en amont de l'élément abrasif dans l'installation de transformation selon le sens de défilement de la bande.10. Method according to one of claims 1 to 9, characterized in that a commitment of the honing method and the honing time are configured according to an availability and a capacity of accumulation of at least one device tape accumulator located upstream of the abrasive element in the processing plant in the direction of travel of the web. 11. Méthode selon une des revendications 1 à 10, caractéri- sée en ce qu'un dépassement d'un seuil d'usure de l'élément abrasif est détecté, signalé et apte à entrai- ner l'interruption du pierrage.11. Method according to one of claims 1 to 10, characterized in that an exceeding of a wear threshold of the abrasive element is detected, reported and able to cause the interruption of honing. 12. Méthode selon une des revendications 1 à 11, caractéri- sée en ce que le pierrage est effectué en amont d'une station d'inspection par vision.12. Method according to one of claims 1 to 11, characterized in that the honing is performed upstream of a viewing inspection station. 13. Dispositif (7) de pierrage d'au moins une face d'une bande métallique (1) en défilement continu comportant: - un moyen (73) de positionnement vertical d'un élément abrasif (71) en surface de ladite bande,13. Device (7) for honing at least one face of a metal strip (1) in continuous scrolling comprising: means (73) for vertical positioning of an abrasive element (71) on the surface of said strip, - un moyen (74) de déplacement horizontal de l'élément abrasif (71) transversalement au défilement de ladite bande, le dit moyen (74) étant accouplable au moyen (73) de positionnement vertical et apte à effectuer un déplacement alternatif d'un bord à l'autre de la bande,- means (74) for horizontal displacement of the abrasive element (71) transversely to the running of said strip, said means (74) being coupled to the means (73) of vertical positioning and adapted to perform an alternating movement of a edge to another of the band, - un premier moyen (72) permettant d'appliquer une pression homogène de l'élément abrasif sur la bande métallique, caractérisé en ce que- first means (72) for applying a homogeneous pressure of the abrasive element on the metal strip, characterized in that - le dit premier moyen (72) permet d'appliquer une pression homogène sur une portion suspendue de bande en défilement et est accouplable à un deuxième moyen (75) permettant d'ajuster ladite pression en fonction de la tension longitudinale de la portion suspendue de bande .said first means (72) makes it possible to apply a homogeneous pressure to a suspended portion of moving strip and is connectable to a second means (75) making it possible to adjust said pressure as a function of the longitudinal tension of the suspended portion of bandaged . 14. Dispositif selon revendication 13, caractérisé en ce que le dit dispositif de pierrage est intégrable à une installation de transformation de bandes métalliques de largeurs arbitraires afin d' effectuer le dit pierrage pour une durée déterminée sur une bande en cours de transformation.14. Device according to claim 13, characterized in that said honing device is integrable to an installation for converting metal strips of arbitrary widths in order to carry out said honing for a fixed period of time on a strip being processed. 15. Dispositif selon revendication 13 ou 14, caractérisé en ce que le dit moyen (74) de déplacement horizontal permet de déplacer l'élément abrasif d'au moins une posi- tion de repos à au moins une position de travail, la dite position de repos se trouvant en dehors de l'emprise de la bande afin de permettre un entretien sécurisé de l'élément abrasif pour un opérateur, et la dite position de travail se trouvant au dessus de la bande et comportant au moins un état en contact de l'élément abrasif avec la bande, ainsi qu'au moins un état hors contact de l'élément abrasif au-dessus de la bande .15. Device according to claim 13 or 14, characterized in that said means (74) for horizontal displacement makes it possible to move the abrasive element of at least one rest position to at least one working position, the said position resting position outside the belt grip for safe maintenance of the abrasive element for an operator, and said working position at the top of the belt and having at least one state in contact with the the abrasive element with the web, as well as at least one non-contacting state of the abrasive element above the web. 16. Dispositif selon une des revendications 13 à 15, caractérisé en ce que le dit moyen (74) de déplacement horizontal comporte au moins un chariot horizontal apte à se déplacer transversalement à la bande sur une distance supérieure à la largeur de celle-ci et incluant les di- tes positions de repos et de travail, le dit moyen (73) de positionnement vertical comporte au moins un organe (732) de transfert vertical disposé entre le dit chariot et un support (731) d'outil, le dit support d'outil ayant une position verticale fixe durant le pierrage et supportant le premier (72) et deuxième (75) moyen de pression.16. Device according to one of claims 13 to 15, characterized in that said means (74) of horizontal displacement comprises at least one horizontal carriage adapted to move transversely to the strip over a distance greater than the width thereof and including the said rest and working positions, the said vertical positioning means (73) comprises at least one vertical transfer member (732) disposed between the said carriage and a tool support (731), the said support tool having a fixed vertical position during honing and supporting the first (72) and second (75) pressure means. 17. Dispositif selon revendication 16, caractérisé en ce que l'organe (732) de transfert vertical comporte au moins un vérin actionnant un ensemble de biellettes disposées en parallélogramme déformable.17. Device according to claim 16, characterized in that the member (732) for vertical transfer comprises at least one jack actuating a set of links arranged in deformable parallelogram. 18. Dispositif selon une des revendications 13 à 17, caractérisé en ce que le dit premier moyen (72) de pression comporte au moins une platine porte-outil (721) supportant l'élément de pierrage et solidarisée au dit support (731) d'outil au moyen d'au moins une glissière verticale (722) dans laquelle la platine porte-outil peut coulisser librement.18. Device according to one of claims 13 to 17, characterized in that said first means (72) of pressure comprises at least one tool plate (721) supporting the honing element and secured to said support (731) d tool by means of at least one vertical slide (722) in which the tool plate can slide freely. 19. Dispositif selon une des revendications 13 à 18, caractérisé en ce qu'un système de détection détecte les bords de la bande et transmet un signal relatant la dite détection au moyen (74) de déplacement horizontal afin d'adapter le dit déplacement de l'élément abrasif à la largeur arbitraire de la bande, le dit déplacement horizontal étant idéalement limité à une course d'une valeur égale à (Lb) -((Ip) + (2r) ) , définie par une différence entre la largeur de bande (Lb) et la somme d'une largeur (Ip) de l'élément abrasif avec une distance (2r) égale au double d'une distance de retrait (r) d'un bord de la bande par rapport à un bord, parallèle et le plus proche, de l'élément abrasif à chaque extrémité de son déplacement transversal.19. Device according to one of claims 13 to 18, characterized in that a detection system detects the edges of the strip and transmits a signal relating said detection means (74) of horizontal displacement to adapt said displacement of the abrasive element at the arbitrary width of the band, said horizontal displacement being ideally limited to a stroke of a value equal to (Lb) - ((Ip) + (2r)), defined by a difference between the bandwidth (Lb) and the sum of a width (Ip) of the abrasive element with a distance (2r) equal to twice a withdrawal distance (r) of an edge of the strip with respect to an edge, parallel and the nearest, of the abrasive element at each end of its transverse displacement. 20. Dispositif selon revendication 19, caractérisé en ce que le dit système de détection comporte au moins un détecteur apte à détecter les bords de la bande lors du déplacement transversal de l'élément abrasif, le dit dé- tecteur étant solidaire d'un élément ayant une position verticale fixe durant le pierrage et appartenant au moyen (73) de positionnement vertical.20. Device according to claim 19, characterized in that said detection system comprises at least one detector capable of detecting the edges of the strip during the transverse displacement of the abrasive element, said detector being integral with an element. having a fixed vertical position during honing and belonging to the means (73) for vertical positioning. 21. Dispositif selon une des revendications 13 à 20, carac- térisé en ce que le dit deuxième moyen (75) de pression comporte au moins un détecteur apte à détecter le niveau horizontal de l'élément abrasif, le dit détecteur étant solidaire d'un élément ayant une position verticale fixe durant le pierrage.21. Device according to one of claims 13 to 20, characterized in that said second means (75) of pressure comprises at least one detector capable of detecting the horizontal level of the abrasive element, said detector being integral with an element having a fixed vertical position during honing. 22. Dispositif selon une des revendications 13 à 21, caractérisé en ce qu'un système de détection détecte et signale une usure de l'élément abrasif approchant une valeur seuil, et interrompt le pierrage en cas de dépasse- ment de la dite valeur seuil.22. Device according to one of claims 13 to 21, characterized in that a detection system detects and reports a wear of the abrasive element approaching a threshold value, and interrupts the honing if exceeding said threshold value . 23. Dispositif selon revendication 13 à 22, caractérisé en ce qu'un système de réglage corrèle une vitesse de défilement de la bande à une vitesse de déplacement trans- versai de l'élément abrasif afin d'adapter la vitesse de défilement de la bande aux capacités de pierrage du dispositif de pierrage dans au moins une partie de l'installation de transformation. 23. Device according to claims 13 to 22, characterized in that a control system correlates a running speed of the web at a transverse speed of displacement of the abrasive element in order to adapt the speed of the abrasive element. moving the band to the honing capabilities of the honing device in at least a portion of the processing plant.
PCT/FR2008/001512 2008-10-27 2008-10-27 Method and device for honing metal strip of arbitrary width in continuous motion Ceased WO2010049596A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
RU2011121358/02A RU2492039C2 (en) 2008-10-27 2008-10-27 Method and device for honing arbitrary-width continuously moving metal strips
BRPI0823205-9A BRPI0823205A2 (en) 2008-10-27 2008-10-27 Method and device for polishing stone with arbitrary widths of continuous displacement
CN2008801316894A CN102196885A (en) 2008-10-27 2008-10-27 Method and device for honing metal strip of arbitrary width in continuous motion
PCT/FR2008/001512 WO2010049596A1 (en) 2008-10-27 2008-10-27 Method and device for honing metal strip of arbitrary width in continuous motion
EP08875620A EP2349641A1 (en) 2008-10-27 2008-10-27 Method and device for honing metal strip of arbitrary width in continuous motion
US13/126,230 US20110318991A1 (en) 2008-10-27 2008-10-27 Method and device for honing metal strips of arbitrary width in continuous motion

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Application Number Priority Date Filing Date Title
PCT/FR2008/001512 WO2010049596A1 (en) 2008-10-27 2008-10-27 Method and device for honing metal strip of arbitrary width in continuous motion

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WO2010049596A1 true WO2010049596A1 (en) 2010-05-06

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EP (1) EP2349641A1 (en)
CN (1) CN102196885A (en)
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WO2017063932A1 (en) 2015-10-14 2017-04-20 Cockerill Maintenance & Ingenierie S.A. Device for detection of defects in strips
EP3208596A1 (en) 2016-02-22 2017-08-23 Cockerill Maintenance & Ingenierie S.A. Device for detection of defects in strips

Families Citing this family (2)

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CN113523907A (en) * 2020-04-14 2021-10-22 上海宝信软件股份有限公司 Automatic polishing device and polishing method for cold-rolled strip steel
CN117655903A (en) * 2023-12-25 2024-03-08 苏州长城精工科技股份有限公司 A new type of CBN oil stone and its processing and use methods

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GB736217A (en) * 1952-02-22 1955-09-07 Osborn Mfg Co Improvements relating to the cleaning, removal of scale and conditioning of metal surfaces
JPS5921426A (en) * 1982-04-23 1984-02-03 Nippon Kokan Kk <Nkk> Descaling method for hot rolled steel
JPH05208209A (en) * 1992-01-31 1993-08-20 Nkk Corp Plate thickness variation control method in coil grinding line
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017063932A1 (en) 2015-10-14 2017-04-20 Cockerill Maintenance & Ingenierie S.A. Device for detection of defects in strips
EP3208596A1 (en) 2016-02-22 2017-08-23 Cockerill Maintenance & Ingenierie S.A. Device for detection of defects in strips

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RU2492039C2 (en) 2013-09-10
CN102196885A (en) 2011-09-21
RU2011121358A (en) 2012-12-10
US20110318991A1 (en) 2011-12-29
EP2349641A1 (en) 2011-08-03
BRPI0823205A2 (en) 2015-06-30

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