EP3385011A1 - Method for marking a sheet and rolling mill for carrying out said method - Google Patents

Method for marking a sheet and rolling mill for carrying out said method Download PDF

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Publication number
EP3385011A1
EP3385011A1 EP18165623.2A EP18165623A EP3385011A1 EP 3385011 A1 EP3385011 A1 EP 3385011A1 EP 18165623 A EP18165623 A EP 18165623A EP 3385011 A1 EP3385011 A1 EP 3385011A1
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EP
European Patent Office
Prior art keywords
sheet
cylinder
marking
rolling mill
rolls
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Granted
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EP18165623.2A
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German (de)
French (fr)
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EP3385011B1 (en
Inventor
Steaven Richard
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Atelier Steaven Richard
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Atelier Steaven Richard
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Priority to PL18165623T priority Critical patent/PL3385011T3/en
Publication of EP3385011A1 publication Critical patent/EP3385011A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • B21C51/005—Marking devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H8/00—Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects, e.g. checkered sheets
    • B21H8/005—Embossing sheets or rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/0047—Machines or apparatus for embossing decorations or marks, e.g. embossing coins by rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/02—Dies; Accessories
    • B44B5/026—Dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/227—Surface roughening or texturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/10—Roughness of roll surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/18—Roll crown; roll profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/005—Rolls with a roughened or textured surface; Methods for making same

Definitions

  • the invention relates to a method for marking sheet metal by rolling. It also relates to a rolling mill implementing such a method.
  • the marking of a metal sheet can be achieved for a functional or decorative purpose. It serves for example to improve the adhesion on the surface of the sheet, or to modify the appearance of the surface by giving it a pattern or a texture. For this, we create on the surface reliefs and hollows more or less fine and more or less deep.
  • Such sheets for example metal, are used in the interior or exterior decoration, in the cabin trim of transport vehicles, whether it is automobile, maritime or air transport.
  • the document FR 2 958 192-A1 describes for example a raised aluminum sheet and whose reliefs are made from a smooth sheet by passing it between two cylinders, one of these cylinders being smooth, the other being etched with patterns complementary to those who will be marked on the sheet.
  • the marking cylinder can be etched by a technique of depositing a wax mask and chemical etching of the areas not protected by the wax. The areas attacked are then hollow, while the protected areas form the reliefs.
  • Another technique is known that uses wet etching, by the use of an ebonite master cylinder whose surface is etched and by rolling the wet master cylinder by an etching solution on the cylinder to be etched. Patterns are then drilled on the cylinder to be engraved by the reliefs of the master cylinder.
  • the invention relates to a method of marking a sheet by rolling wherein the sheet is passed between a smooth cylinder and a marking cylinder, characterized in that the rolling mill is of duo type, the marking cylinder has a straight profile and the smooth cylinder has a curved profile to compensate for the bending of the rolls in work.
  • duo type mill that is to say with exactly two cylinders, allows a simple production, even for small series.
  • the preparation of a job is limited to the mounting of the marking cylinder comprising the desired drawing and the adjustment of the spacing between the two cylinders.
  • the curved cylinder can also be optionally changed so that the crown is adapted to the working conditions, depending on the design of the marking, the nature of the sheet and its section.
  • the bulge giving for example a profile in a circular arc or parabola symmetrical to the smooth cylinder, makes it possible to compensate the bending of the two rolls and to keep a spacing between the rolls constant along the contact zones between the rolls and the sheet during the marking work.
  • the marking cylinder is feasible with known techniques as described above. These techniques are commonly used on straight profile cylinders and are industrially controlled.
  • the invention also relates to a rolling mill for marking a sheet comprising a smooth cylinder and a marking cylinder between which the sheet is intended to pass, characterized in that the rolling mill is of duo type, in that the cylinder marking has a straight profile and the smooth cylinder has a curved profile to compensate for the bending of the cylinders in work.
  • the rolling mill comprises an upstream table and a downstream table on either side of the plane defined by the axes of the rolls for supporting the sheet during the rolling operation. It is thus easy to insert sheet metal manually by sliding the sheet on the upstream table. The sheet is also supported after passing between the cylinders.
  • the tables comprise removable guides for guiding the sheet metal towards the cylinders. This ensures the direction given to the sheet during its passage between the cylinders.
  • a rolling mill comprises a frame 1 in which two cylinders 2, 3 are rotatably mounted one above the other.
  • the rolling mill comprises drive means provided for driving the rolls 2, 3 in a contra-rotating manner.
  • the rolling mill also comprises adjusting means 4 for adjusting the spacing between the two cylinders 2, 3 by adjusting the position of the upper roll 2.
  • the rolling mill is of the duo type, that is to say that it comprises exactly two cylinders 2, 3.
  • the upper cylinder is a marking cylinder 2 having a straight profile.
  • the lower cylinder is a smooth cylinder 3 but curved, that is to say with a slightly larger diameter in the middle.
  • the rolling mill also comprises an upstream table 5 and a downstream table (hidden by the rolls on the figure 1 ) which extend in the plane of symmetry separating the two cylinders 2, 3.
  • Each table has a series of threaded holes 50 for fixing guides 51, 52 in the direction of the cylinders 2, 3.
  • the guides 51, 52 are placed parallel to each other with adjustable spacing.
  • the upper cylinder has been previously etched so that it has patterns with reliefs and hollows.
  • the sheet engages and is driven by the cylinders 2, 3 so that the upper cylinder prints the marking on one of the faces of the sheet.
  • the sheet is driven over the entire length and spring on the rear table 6.
  • the marking depth that is to say the distance between the relief and the marking hollows, is typically of the order of a few 1/10 e mm, for example 4/10 e .
  • the smooth cylinder 3 and curved, as shown on the figure 2 Has a diameter of 162 mm and has a median diameter DM upper 12/100 e the diameter D of the cylinder 301 at the ends of the working area 30. Apart from this difference in diameter, the marking cylinder 2 is consistent with the representation of the figure 2 .
  • Each cylinder 2, 3 is interchangeable so as to change the pattern made by the marking cylinder 2 or to adapt the crown to the working conditions. Indeed, depending on the width of the sheet, its nature and the design of the marking, the spacing forces between the cylinders 2, 3 will be variable. It is therefore useful to provide cylinders 2, 3 with different bulges to be able to adapt to these conditions. In the work effort, the two cylinders 2, 3 tend to flex away from each other. This results in a greater risk of spacing in the middle of the cylinders 2, 3 that on the edges. The bulge imparted to the smooth roll 3 makes it possible to anticipate this bending and to maintain a spacing between the rolls 2, 3 that is substantially constant over the entire width of the sheet being marked.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

Selon un procédé de marquage d'une tôle par laminage, on fait passer la tôle entre un cylindre lisse (3) et un cylindre de marquage (2). Le laminoir est de type duo, le cylindre de marquage (2) a un profil droit et le cylindre lisse (3) a un profil bombé pour compenser la flexion des cylindres (2, 3) en travail.According to a method of marking a sheet by rolling, the sheet is passed between a smooth cylinder (3) and a marking cylinder (2). The rolling mill is of duo type, the marking cylinder (2) has a straight profile and the smooth cylinder (3) has a curved profile to compensate for the bending of the rolls (2, 3) in work.

Description

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

L'invention concerne un procédé de marquage de tôle par laminage. Elle concerne également un laminoir mettant en oeuvre un tel procédé.The invention relates to a method for marking sheet metal by rolling. It also relates to a rolling mill implementing such a method.

ART ANTÉRIEURPRIOR ART

Le marquage d'une tôle métallique peut être réalisé pour un but fonctionnel ou décoratif. Il sert par exemple à améliorer l'adhérence sur la surface de la tôle, ou à modifier l'aspect de la surface en lui conférant un motif ou une texture. Pour cela, on crée sur la surface des reliefs et des creux plus ou moins fins et plus ou moins profonds. De telles tôles, par exemple métalliques, sont utilisées dans la décoration intérieur ou extérieure, dans l'habillage d'habitacle de véhicules de transport, que ce soit le transport automobile, maritime ou aérien. On trouve par exemple des tôles en acier inox imitant un aspect en cuir qui sont utilisées pour l'habillage intérieur des cabines d'ascenseur. Elles peuvent être utilisées également pour l'ameublement, en décoration de comptoir, ou pour la bijouterie, l'orfèvrerie, la haute couture ou la création d'emballages de luxe.The marking of a metal sheet can be achieved for a functional or decorative purpose. It serves for example to improve the adhesion on the surface of the sheet, or to modify the appearance of the surface by giving it a pattern or a texture. For this, we create on the surface reliefs and hollows more or less fine and more or less deep. Such sheets, for example metal, are used in the interior or exterior decoration, in the cabin trim of transport vehicles, whether it is automobile, maritime or air transport. For example, there are stainless steel sheets imitating a leather appearance that are used for the interior trim of the elevator cabins. They can also be used for furniture, counter decorations, jewelery, goldsmiths, haute couture or luxury packaging.

Le laminage est l'une des techniques utilisées pour la réalisation de ce marquage. Le document FR 2 958 192-A1 décrit par exemple une tôle à relief en aluminium et dont les reliefs sont réalisés à partir d'une tôle lisse en passant celle-ci entre deux cylindres, l'un de ces cylindres étant lisse, l'autre étant gravé avec des motifs complémentaires à ceux qui seront marqués sur la tôle.Rolling is one of the techniques used to carry out this marking. The document FR 2 958 192-A1 describes for example a raised aluminum sheet and whose reliefs are made from a smooth sheet by passing it between two cylinders, one of these cylinders being smooth, the other being etched with patterns complementary to those who will be marked on the sheet.

Le cylindre de marquage peut être gravé par une technique de dépôt d'un masque de cire et d'une attaque chimique des zones non protégées par la cire. Les zones attaquées sont alors en creux, alors que les zones protégées forment les reliefs. On connaît également une autre technique utilisant une attaque chimique humide, par l'usage d'un cylindre maître en ébonite dont la surface est gravée et en faisant rouler le cylindre maître mouillé par une solution d'attaque sur le cylindre à graver. Des motifs sont alors creusés sur le cylindre à graver par les reliefs du cylindre maître. Ces techniques sont utilisées sur des cylindres à profil droit,The marking cylinder can be etched by a technique of depositing a wax mask and chemical etching of the areas not protected by the wax. The areas attacked are then hollow, while the protected areas form the reliefs. Another technique is known that uses wet etching, by the use of an ebonite master cylinder whose surface is etched and by rolling the wet master cylinder by an etching solution on the cylinder to be etched. Patterns are then drilled on the cylinder to be engraved by the reliefs of the master cylinder. These techniques are used on cylinders with a straight profile,

Cependant, le laminage génère des forces importantes sur les cylindres, ce qui tend à les faire fléchir et ainsi à modifier les conditions de laminage. En général, les solutions pour éviter cette flexion sont de prévoir des cylindres supplémentaires venant en appui sur les cylindres de travail, aboutissant à des laminoirs à six, douze ou vingt cylindres, tels que les laminoirs Sendzimir.However, rolling generates large forces on the rolls, which tends to cause them to bend and thus to modify the rolling conditions. In general, the solutions to avoid this bending are to provide additional cylinders bearing on the work rolls, resulting in rolling mills with six, twelve or twenty cylinders, such as Sendzimir mills.

Il est également possible de bomber de manière symétrique les 2 cylindres de travail comme sur certains laminoirs quarto. Ces solutions sont inadaptées pour répondre aux critères de travail de marquage dans un contexte d'artisanat d'art, pour les raisons suivantes :

  • ▷ diamètre du cylindre de marquage trop petit ne permettant pas le développé d'un design de gravure long;
  • ▷ l'impossibilité de graver un cylindre de travail bombé avec les techniques de gravures industrielles connues;
  • ▷ dimensions et complexité des laminoirs trop importantes causant un problème de rentabilité dû au coût du laminoir et au temps de réglage.
It is also possible to symmetrically bend the 2 working rolls as on some quarto rolling mills. These solutions are unsuitable for meeting the criteria of marking work in a context of arts and crafts, for the following reasons:
  • ▷ diameter of the marking cylinder too small does not allow the development of a long engraving design;
  • ▷ the impossibility of engraving a curved work cylinder with known industrial engraving techniques;
  • ▷ dimensions and complexity of the rolling mills too important causing a problem of profitability due to the cost of the rolling mill and the adjustment time.

OBJECTIFS DE L'INVENTIONOBJECTIVES OF THE INVENTION

Pour résoudre ces problèmes l'invention vise à fournir un procédé de laminage qui réponde aux exigences suivantes :

  • ▷ simplicité d'utilisation et de réglage pour permettre de rentabiliser des productions de petite et moyenne série;
  • ▷ diamètre du cylindre de marquage suffisamment important pour permettre la réalisation de design de texture complexe, varié et long;
  • ▷ utilisation de techniques connues pour la réalisation du cylindre de marquage;
  • ▷ de permettre d'utiliser la largeur maximum du cylindre de marquage.
To solve these problems the invention aims to provide a rolling method that meets the following requirements:
  • ▷ simplicity of use and adjustment to make profitable productions of small and medium series;
  • ▷ diameter of the marking cylinder large enough to allow the realization of complex, varied and long texture design;
  • Use of known techniques for producing the marking cylinder;
  • Permettre allow the maximum width of the marking cylinder to be used.

Elle vise également à fournir un laminoir apte à mettre en oeuvre un tel procédé.It also aims to provide a rolling mill capable of implementing such a method.

DESCRIPTION DE L'INVENTIONDESCRIPTION OF THE INVENTION

Avec ces objectifs en vue, l'invention a pour objet un procédé de marquage d'une tôle par laminage selon lequel on fait passer la tôle entre un cylindre lisse et un cylindre de marquage, caractérisé en ce que le laminoir est de type duo, le cylindre de marquage a un profil droit et le cylindre lisse a un profil bombé pour compenser la flexion des cylindres en travail.With these objectives in view, the invention relates to a method of marking a sheet by rolling wherein the sheet is passed between a smooth cylinder and a marking cylinder, characterized in that the rolling mill is of duo type, the marking cylinder has a straight profile and the smooth cylinder has a curved profile to compensate for the bending of the rolls in work.

L'utilisation d'un laminoir de type duo, c'est-à-dire avec exactement deux cylindres, permet une production simple, même pour de petites séries. La préparation d'un travail se résume au montage du cylindre de marquage comportant le dessin souhaité et au réglage de l'écartement entre les deux cylindres. Le cylindre bombé peut aussi être éventuellement changé pour que le bombé soit adapté aux conditions de travail, en fonction du dessin du marquage, de la nature de la tôle et de sa section.The use of a duo type mill, that is to say with exactly two cylinders, allows a simple production, even for small series. The preparation of a job is limited to the mounting of the marking cylinder comprising the desired drawing and the adjustment of the spacing between the two cylinders. The curved cylinder can also be optionally changed so that the crown is adapted to the working conditions, depending on the design of the marking, the nature of the sheet and its section.

Le bombé, donnant par exemple un profil en arc de cercle ou en parabole symétrique au cylindre lisse, permet de compenser la flexion des deux cylindres et de garder un espacement entre les cylindres constant le long des zones de contact entre les cylindres et la tôle pendant le travail de marquage.The bulge, giving for example a profile in a circular arc or parabola symmetrical to the smooth cylinder, makes it possible to compensate the bending of the two rolls and to keep a spacing between the rolls constant along the contact zones between the rolls and the sheet during the marking work.

Le cylindre de marquage est réalisable avec des techniques connues telles que décrites précédemment. Ces techniques sont couramment utilisées sur des cylindres à profil droit et sont maîtrisées de manière industrielle.The marking cylinder is feasible with known techniques as described above. These techniques are commonly used on straight profile cylinders and are industrially controlled.

Selon d'autres caractéristiques :

  • ▷ la largeur de la tôle est comprise entre 50 et 300 mm, de préférence entre 150 et 270 mm.
  • ▷ la profondeur de gravure du cylindre de marquage est comprise entre 50 et 500 µm, de préférence entre 100 et 400 µm.
  • ▷ l'épaisseur de la tôle est supérieure à 1 mm, de préférence supérieure à 1,5 mm.
  • ▷ la tôle est dans un matériau choisi dans un groupe comprenant l'acier, le cuivre, le laiton, le bronze, le zinc, l'étain, l'aluminium et leurs alliages ou leurs composites.
According to other characteristics:
  • Largeur the width of the sheet is between 50 and 300 mm, preferably between 150 and 270 mm.
  • Profondeur the engraving depth of the marking cylinder is between 50 and 500 μm, preferably between 100 and 400 μm.
  • Épaisseur the thickness of the sheet is greater than 1 mm, preferably greater than 1.5 mm.
  • The sheet is made of a material chosen from a group comprising steel, copper, brass, bronze, zinc, tin, aluminum and their alloys or their composites.

L'invention a aussi pour objet un laminoir pour le marquage d'une tôle comportant un cylindre lisse et un cylindre de marquage entre lesquels la tôle est destinée à passer, caractérisé en ce que le laminoir est de type duo, en ce que le cylindre de marquage a un profil droit et le cylindre lisse a un profil bombé pour compenser la flexion des cylindres en travail.The invention also relates to a rolling mill for marking a sheet comprising a smooth cylinder and a marking cylinder between which the sheet is intended to pass, characterized in that the rolling mill is of duo type, in that the cylinder marking has a straight profile and the smooth cylinder has a curved profile to compensate for the bending of the cylinders in work.

Selon d'autres caractéristiques :

  • ▷ les cylindres ont une largeur comprise entre 200 et 400 mm, de préférence entre 250 et 350 mm.
  • ▷ les cylindres ont un diamètre compris entre 80 et 250 mm, de préférence entre 120 et 200 mm.
  • ▷ le cylindre lisse a un bombé au diamètre inférieur à 1 mm.
According to other characteristics:
  • Cylind the rolls have a width of between 200 and 400 mm, preferably between 250 and 350 mm.
  • Cylind the rolls have a diameter of between 80 and 250 mm, preferably between 120 and 200 mm.
  • ▷ the smooth cylinder has a curvature with a diameter of less than 1 mm.

Selon une caractéristique complémentaire, le laminoir comporte une table amont et une table aval de part et d'autre du plan défini par les axes des cylindres pour supporter la tôle pendant l'opération de laminage. On peut ainsi procéder facilement à l'insertion de tôle manuellement en faisant glisser la tôle sur la table amont. La tôle est également soutenue après son passage entre les cylindres.According to a complementary feature, the rolling mill comprises an upstream table and a downstream table on either side of the plane defined by the axes of the rolls for supporting the sheet during the rolling operation. It is thus easy to insert sheet metal manually by sliding the sheet on the upstream table. The sheet is also supported after passing between the cylinders.

Selon un perfectionnement, les tables comportent des guides amovibles pour guider la tôle en direction des cylindres. On s'assure ainsi de la direction donnée à la tôle pendant son passage entre les cylindres.According to an improvement, the tables comprise removable guides for guiding the sheet metal towards the cylinders. This ensures the direction given to the sheet during its passage between the cylinders.

BRÈVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

L'invention sera mieux comprise et d'autres caractéristiques et avantages apparaîtront au vu de la description détaillée de l'invention qui va suivre en lien avec les dessins parmi lesquels :

  • ▷ la figure 1 est une vue en perspective d'un laminoir conforme à l'invention ;
  • ▷ la figure 2 est une vue de face d'un cylindre bombé du laminoir de la figure 1.
The invention will be better understood and other features and advantages will become apparent from the detailed description of the invention which follows in connection with the drawings among which:
  • ▷ figure 1 is a perspective view of a rolling mill according to the invention;
  • ▷ figure 2 is a front view of a curved cylinder of the rolling mill of the figure 1 .

DESCRIPTION DÉTAILLÉEDETAILED DESCRIPTION

Un laminoir conforme à un mode de réalisation de l'invention comporte un bâti 1 dans lequel deux cylindres 2, 3 sont montés rotatifs l'un au-dessus de l'autre. Le laminoir comporte des moyens d'entraînement prévu pour entraîner les cylindres 2, 3 de manière contrarotative. Le laminoir comporte également des moyens de réglage 4 pour ajuster l'écartement entre les deux cylindres 2, 3 par un réglage de la position du cylindre supérieur 2. Le laminoir est du type duo c'est-à-dire qu'il comporte exactement deux cylindres 2, 3.A rolling mill according to one embodiment of the invention comprises a frame 1 in which two cylinders 2, 3 are rotatably mounted one above the other. The rolling mill comprises drive means provided for driving the rolls 2, 3 in a contra-rotating manner. The rolling mill also comprises adjusting means 4 for adjusting the spacing between the two cylinders 2, 3 by adjusting the position of the upper roll 2. The rolling mill is of the duo type, that is to say that it comprises exactly two cylinders 2, 3.

Conformément à l'invention le cylindre supérieur est un cylindre de marquage 2 ayant un profil droit. Le cylindre inférieur est un cylindre lisse 3 mais bombé, c'est-à-dire avec un diamètre légèrement supérieur en son milieu. Le laminoir comporte également une table amont 5 et une table aval (masquée par les cylindres sur la figure 1) qui s'étendent dans le plan de symétrie séparant les deux cylindres 2, 3. Chaque table comporte une série de trous taraudés 50 permettant de fixer des guides 51, 52 en direction des cylindres 2, 3. Ainsi les guides 51, 52 sont placés parallèlement l'un à l'autre avec un écartement réglable.According to the invention the upper cylinder is a marking cylinder 2 having a straight profile. The lower cylinder is a smooth cylinder 3 but curved, that is to say with a slightly larger diameter in the middle. The rolling mill also comprises an upstream table 5 and a downstream table (hidden by the rolls on the figure 1 ) which extend in the plane of symmetry separating the two cylinders 2, 3. Each table has a series of threaded holes 50 for fixing guides 51, 52 in the direction of the cylinders 2, 3. Thus the guides 51, 52 are placed parallel to each other with adjustable spacing.

Le cylindre supérieur a été préalablement gravé de telle sorte qu'il comporte des motifs avec des reliefs et des creux. En fonctionnement, on introduit une tôle, non représentée, sur la table avant 5 entre les guides 51, 52 et en la poussant dans l'espace entre les deux cylindres 2, 3, selon la direction de la flèche F1. Ainsi la tôle s'engage et est entraînée par les cylindres 2, 3 de telle sorte que le cylindre supérieur imprime le marquage sur l'une des faces de la tôle. La tôle est entraînée sur toute la longueur et ressort sur la table arrière 6.The upper cylinder has been previously etched so that it has patterns with reliefs and hollows. In operation, we introduce a sheet, not shown, on the front table 5 between the guides 51, 52 and pushing it in the space between the two cylinders 2, 3, in the direction of the arrow F1. Thus the sheet engages and is driven by the cylinders 2, 3 so that the upper cylinder prints the marking on one of the faces of the sheet. The sheet is driven over the entire length and spring on the rear table 6.

La profondeur de marquage, c'est-à-dire la distance entre le relief et les creux de marquage, est typiquement de l'ordre de quelques 1/10e mm, par exemple de 4/10e. Le cylindre lisse 3 et bombé, tel que montré sur la figure 2, a un diamètre de 162 mm et présente un diamètre médian DM supérieur de 12/100e au diamètre D du cylindre aux extrémités 301 de la zone de travail 30. Hormis cette différence de diamètre, le cylindre de marquage 2 est conforme à la représentation de la figure 2.The marking depth, that is to say the distance between the relief and the marking hollows, is typically of the order of a few 1/10 e mm, for example 4/10 e . The smooth cylinder 3 and curved, as shown on the figure 2 , Has a diameter of 162 mm and has a median diameter DM upper 12/100 e the diameter D of the cylinder 301 at the ends of the working area 30. Apart from this difference in diameter, the marking cylinder 2 is consistent with the representation of the figure 2 .

Chaque cylindre 2, 3 est interchangeable de manière à pouvoir changer le motif réalisé par le cylindre de marquage 2 ou à adapter le bombé aux conditions de travail. En effet, selon la largeur de la tôle, sa nature et le dessin du marquage, les efforts d'écartement entre les cylindres 2, 3 seront variables. Il est donc utile de prévoir des cylindres 2, 3 avec différents bombés pour pouvoir s'adapter à ces conditions. Dans l'effort de travail, les deux cylindres 2, 3 tendent à fléchir en s'écartant l'un de l'autre. Il en résulte un risque d'écartement plus important au milieu des cylindres 2, 3 que sur les bords. Le bombé conféré au cylindre lisse 3 permet d'anticiper cette flexion et de conserver un espacement entre les cylindres 2, 3 sensiblement constant sur toute la largeur de la tôle en cours de marquage.Each cylinder 2, 3 is interchangeable so as to change the pattern made by the marking cylinder 2 or to adapt the crown to the working conditions. Indeed, depending on the width of the sheet, its nature and the design of the marking, the spacing forces between the cylinders 2, 3 will be variable. It is therefore useful to provide cylinders 2, 3 with different bulges to be able to adapt to these conditions. In the work effort, the two cylinders 2, 3 tend to flex away from each other. This results in a greater risk of spacing in the middle of the cylinders 2, 3 that on the edges. The bulge imparted to the smooth roll 3 makes it possible to anticipate this bending and to maintain a spacing between the rolls 2, 3 that is substantially constant over the entire width of the sheet being marked.

Claims (11)

Procédé de marquage d'une tôle par laminage selon lequel on fait passer la tôle entre un cylindre lisse (3) et un cylindre de marquage (2), caractérisé en ce que le laminoir est de type duo, le cylindre de marquage (2) a un profil droit et le cylindre lisse (3) a un profil bombé pour compenser la flexion des cylindres (2, 3) en travail.Process for marking a sheet by rolling, in which the sheet is passed between a smooth cylinder (3) and a marking cylinder (2), characterized in that the rolling mill is of the duo type, the marking cylinder (2) has a straight profile and the smooth cylinder (3) has a curved profile to compensate for the bending of the cylinders (2, 3) in work. Procédé selon la revendication 1, dans lequel la largeur de la tôle est comprise entre 50 et 300 mm, de préférence entre 150 et 270 mm.The method of claim 1, wherein the width of the sheet is between 50 and 300 mm, preferably between 150 and 270 mm. Procédé selon la revendication 1 ou 2, selon lequel la profondeur de gravure du cylindre de marquage (2) est comprise entre 50 et 500 µm, de préférence entre 100 et 400 µm.Method according to claim 1 or 2, wherein the engraving depth of the marking cylinder (2) is between 50 and 500 μm, preferably between 100 and 400 μm. Procédé selon l'une des revendications précédentes, selon lequel l'épaisseur de la tôle est supérieure à 1 mm, de préférence supérieure à 1,5 mm.Method according to one of the preceding claims, wherein the thickness of the sheet is greater than 1 mm, preferably greater than 1.5 mm. Procédé selon l'une des revendications précédentes, selon lequel la tôle est dans un matériau choisi dans un groupe comprenant l'acier, le cuivre, le laiton, le bronze, le zinc, l'étain, l'aluminium et leurs alliages.Method according to one of the preceding claims, wherein the sheet is made of a material selected from a group consisting of steel, copper, brass, bronze, zinc, tin, aluminum and their alloys. Laminoir pour le marquage d'une tôle comportant un cylindre lisse (3) et un cylindre de marquage (2) entre lesquels la tôle est destinée à passer, caractérisé en ce que le laminoir est de type duo, en ce que le cylindre de marquage (2) a un profil droit et le cylindre lisse (3) a un profil bombé pour compenser la flexion des cylindres (2, 3) en travail.Rolling mill for marking a metal sheet having a smooth cylinder (3) and a marking cylinder (2) between which the sheet is intended to pass, characterized in that the rolling mill is of duo type, in that the marking cylinder (2) has a straight profile and the smooth cylinder (3) has a curved profile to compensate for the bending of the rolls (2, 3) in work. Laminoir selon la revendication 6, dans lequel les cylindres (2, 3) ont une largeur comprise entre 200 et 400 mm, de préférence entre 250 et 350 mm.Rolling mill according to Claim 6, in which the rolls (2, 3) have a width of between 200 and 400 mm, preferably between 250 and 350 mm. Laminoir selon l'une des revendications précédentes, dans lequel les cylindres (2, 3) ont un diamètre compris entre 80 et 250 mm, de préférence entre 120 et 200 mm.Rolling mill according to one of the preceding claims, in which the rolls (2, 3) have a diameter of between 80 and 250 mm, preferably between 120 and 200 mm. Laminoir selon la revendication 7 ou 8, dans lequel le cylindre lisse (3) a un bombé au diamètre inférieur à 1 mm.Rolling mill according to Claim 7 or 8, in which the smooth roll (3) has a curvature with a diameter of less than 1 mm. Laminoir selon l'une des revendications précédentes, caractérisé en ce qu'il comporte une table amont (5) et une table aval (6) de part et d'autre du plan défini par les axes des cylindres (2, 3) pour supporter la tôle pendant l'opération de laminage.Rolling mill according to one of the preceding claims, characterized in that it comprises an upstream table (5) and a downstream table (6) on either side of the plane defined by the axes of the rolls (2, 3) for supporting the sheet during the rolling operation. Laminoir selon la revendication 10, selon lequel les tables (5, 6) comportent des guides (51, 52) amovibles pour guider la tôle en direction des cylindres (2, 3).Rolling mill according to Claim 10, in which the tables (5, 6) comprise removable guides (51, 52) for guiding the sheet metal towards the rolls (2, 3).
EP18165623.2A 2017-04-05 2018-04-04 Method for marking a sheet and rolling mill for carrying out said method Active EP3385011B1 (en)

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PL18165623T PL3385011T3 (en) 2017-04-05 2018-04-04 Method for marking a sheet and rolling mill for carrying out said method

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FR1770344A FR3064933B1 (en) 2017-04-05 2017-04-05 METHOD OF MARKING A SHEET AND A ROLLER USING THE SAME

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EP3385011B1 EP3385011B1 (en) 2020-06-03

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FR (1) FR3064933B1 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111136632A (en) * 2020-02-28 2020-05-12 曹旭 Semicircle iron sheet scribing device

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH03297504A (en) * 1990-04-18 1991-12-27 Nkk Corp Manufacture of steel sheet with different roughness on front surface and rear
DE10111025A1 (en) * 2001-03-07 2002-09-12 A & E Ungricht Gmbh & Co Kg Embossing or coining roll gap adjustment uses markings on roll surface and endface clear or within die engravure so rolls can be turned to register markings and give required roll contact-free gap.
EP1287851A1 (en) * 2001-08-28 2003-03-05 Mark L. Robinson Method of producing textured surfaces on medical implants
WO2016124447A1 (en) * 2015-02-04 2016-08-11 Hydro Aluminium Rolled Products Gmbh Method and device for the embossment rolling of a strip

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03297504A (en) * 1990-04-18 1991-12-27 Nkk Corp Manufacture of steel sheet with different roughness on front surface and rear
DE10111025A1 (en) * 2001-03-07 2002-09-12 A & E Ungricht Gmbh & Co Kg Embossing or coining roll gap adjustment uses markings on roll surface and endface clear or within die engravure so rolls can be turned to register markings and give required roll contact-free gap.
EP1287851A1 (en) * 2001-08-28 2003-03-05 Mark L. Robinson Method of producing textured surfaces on medical implants
WO2016124447A1 (en) * 2015-02-04 2016-08-11 Hydro Aluminium Rolled Products Gmbh Method and device for the embossment rolling of a strip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111136632A (en) * 2020-02-28 2020-05-12 曹旭 Semicircle iron sheet scribing device

Also Published As

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PT3385011T (en) 2020-08-14
EP3385011B1 (en) 2020-06-03
PL3385011T3 (en) 2021-02-08
FR3064933A1 (en) 2018-10-12
FR3064933B1 (en) 2019-05-03

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