EP2002906A1 - Horizontal accumulator for a metal band - Google Patents

Horizontal accumulator for a metal band Download PDF

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Publication number
EP2002906A1
EP2002906A1 EP07447037A EP07447037A EP2002906A1 EP 2002906 A1 EP2002906 A1 EP 2002906A1 EP 07447037 A EP07447037 A EP 07447037A EP 07447037 A EP07447037 A EP 07447037A EP 2002906 A1 EP2002906 A1 EP 2002906A1
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EP
European Patent Office
Prior art keywords
carriage
horizontal
accumulator
passage
door
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EP07447037A
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German (de)
French (fr)
Inventor
Jean-Claude Mont
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CMI SA
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CMI SA
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Priority to EP07447037A priority Critical patent/EP2002906A1/en
Publication of EP2002906A1 publication Critical patent/EP2002906A1/en
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    • 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
    • B21C49/00—Devices for temporarily accumulating material

Definitions

  • the present invention relates to a horizontal accumulator for a strip processing line, preferably a metal strip, comprising a looping carriage of the hairpin strip according to at least two superposed strands and fixed band support members comprising supporting arms of supporting rollers, eclipsable during the passage of the carriage.
  • a horizontal accumulator there is one or more carriages movable horizontally on a rail and ensuring a looping of the band generally according to several superposed strands and moving in opposite directions, with the return rollers.
  • the accumulation capacity is 400 meters.
  • the movement of the carriage is ensured by a pulling cable in one direction and by pulling the strip itself in the other direction.
  • the different superimposed strands must be supported, over the entire length of travel of the carriage, by arms or rollers mounted on gantries, which are themselves mounted fixed and preferably equidistant. These arms or rollers must of course be mounted removable, a mechanism allowing them on the one hand to open and slide off when the carriage passes and, on the other hand, to return to the support position after the passage of this one.
  • the document GB-A-2,023,549 discloses an accumulator for a tape processing line comprising a drum loop carriage moving horizontally between two positions as well as support gates in the carriage path.
  • Each gate comprises, on each side of the band, a pivoting element provided with arms or rollers which support the band.
  • the carriage is provided with two vertical rollers (“rollers") located on either side of the band that allow to rotate the arms of the gantry during the passage of the carriage.
  • the document FR-A-2,778,350 discloses an installation for accumulating a strip product comprising a looping carriage carrying at least one return member and intermediate support members each comprising at least one separating arm pivotally mounted and actuated, at the passage of the looping carriage, by a follower device cooperating with a cam device mounted on the looping carriage.
  • the rotation of each arm is controlled by a set of two levers connected by a connecting rod and having two stable angular positions which determine the holding of the arm, respectively in a remote position and in an engaged position, as long as the roller is not stressed by the passage in one direction or the other of the active surface of the cam device.
  • the document FR-A-2 703 605 discloses a horizontal strip accumulator consisting of a horizontal drum mounted on a carriage that moves horizontally and capable of accumulating a strip length in the form of a horizontal two-stranded loop and a series of rollers mounted on arms pivoting about vertical axes and supporting at least one of the strands of the loop, these rollers being eclipsed by rotation of said arms by a cam integral with the carriage and cooperating with rollers carried by said arms.
  • each cam is made in two parts arranged one behind the other but without connecting to each other and each arm carries two rollers, each roller being adapted to cooperate with one of the parts of the cam to pivot the arm on part of its path between its working position and its eclipsed position and vice versa.
  • the fixed support gantries are generally made in the form of frames, comprising a lower portion and an upper portion containing the bearings for the rotation of the rotatably mounted vertical beams which carry the eclipsable support arms.
  • the present invention aims to provide a solution that makes it possible to overcome the disadvantages of the state of the art.
  • the invention aims to provide a horizontal accumulator whose fixed support gantries of the band are devoid of upper frame, which implies a simplification of the installation, a weight saving and a less expensive embodiment.
  • the present invention relates to a horizontal strip accumulator comprising a carriage movable horizontally on a production line, Metallurgical preference, provided with one or more horizontal axis drums each for forming a horizontal parallel two-stranded hairpin loop, said carriage mechanically cooperating with a plurality of fixed, preferably equidistant, gates on the line, comprising beams vertical lines located on either side of the path of the strip and provided with removable horizontal arms for supporting said strands, such that each door opens by automatically spacing said support arms in a rotation in a horizontal plane to ensuring the passage of the carriage, characterized in that said vertical beams are rotatably mounted about their axis on a frame, only at their base and are not held at their upper end.
  • connection between the beams and said frame is made by ball thrust.
  • said doors are devoid of upper support structure, the two vertical beams can be connected in their upper part only by a holding tie.
  • the carriage comprises at each of its lateral sides a cam or slide with sigmoidal shape, in which is inserted and runs, at the time of the passage of the carriage, a roller secured to a support pivotally mounted about a vertical axis and articulated to a door opening control linkage.
  • the cam is configured to actuate a lever in the form of a horizontal lever arm articulated at a first end to the support of the roller and at a second end to the corresponding rotating vertical beam of the door, so as to trigger the opening of the door.
  • the accumulator according to the invention may also be advantageously provided with a spring device allowing the doors to remain open or closed after the passage of the carriage, according to the direction of passage, at the moment when the roller comes out of the cam.
  • the carriage is provided with traction means such as cables exerting a force opposite to that exerted by the band, which make it possible to advance it in the opposite direction to the band.
  • FIGS. 1A and 1B schematically represent perspective views of the support portal in the accumulator according to the present invention, in the closed position.
  • FIGS. 2A and 2B schematically represent perspective views of the support portal in the accumulator according to the present invention, in the open position.
  • FIG. 1A , 1B closed doors
  • 2A and 2B open doors
  • the accumulator comprises a mobile looping carriage, essentially as described in the state of the art, and a number of fixed doors or gates 1 for supporting the band.
  • Each door 1 comprises two vertical beams 2 rotatably mounted about their axis and each carrying a plurality of horizontal support half-arms 3 for the band, the number of arms corresponding to the number of strands of the accumulator.
  • each of the two vertical beams of door is mounted at its base, that is to say, on the ground, on a thrust ball 4.
  • This configuration makes it possible to dispense with a higher frame, as is the case in the prior art .
  • This thrust ball bearing 4 is intended to take up the vertical forces and the overturning torque.
  • the vertical rotating beams are mounted on bearings, located respectively at their lower end and their upper end (see for example FR-A-2,778,350 ).
  • an upper holding tie 5 can advantageously be provided to resume the play of the upper ends of the two vertical beams.
  • the opening and closing of the doors at the passage of the carriage is controlled mechanically at ground level by a system of two cams or sigmoidal-shaped slides (not shown), arranged on each side of the carriage.
  • the control linkage simplified, comprises a roller 6A on a support 6B pivotally mounted about a vertical axis, said roller 6A being articulated around a horizontal lever arm 7, itself articulated around the vertical axis of the corresponding beam 2.
  • the roller support 6B and the vertical door beam 2 can be mounted on a single frame or two separate frames.
  • the accumulator of the invention has the advantage of being very compact vertically and therefore of being easier to interpose in height on the line.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

The accumulator has a carriage with drums at horizontal axis to form a hairpin loop having two parallel horizontal strands. The carriage cooperates mechanically with fixed doors (1) having vertical beams (2) situated on both sides of a trajectory of band. The doors have removable horizontal arms (3) for supporting the strands so that each door is opened by automatic separation of the arms in a horizontal plane to permit passage of carriage. The beams are mounted in a rotating manner around their axis on a chassis (8), only at base and not maintained at upper end of the beams.

Description

Objet de l'inventionObject of the invention

La présente invention se rapporte à un accumulateur horizontal pour ligne de traitement d'une bande, de préférence métallique, comportant un chariot de bouclage de la bande en épingle à cheveux selon au moins deux brins superposés et des organes de support de bande fixes comportant des bras porteurs de rouleaux de soutien, éclipsables lors du passage du chariot.The present invention relates to a horizontal accumulator for a strip processing line, preferably a metal strip, comprising a looping carriage of the hairpin strip according to at least two superposed strands and fixed band support members comprising supporting arms of supporting rollers, eclipsable during the passage of the carriage.

Etat de la techniqueState of the art

Il est connu d'utiliser, dans les installations de traitement en continu de bandes d'acier, en particulier les installations de traitement à froid (laminage, recuit, décapage, revêtement au trempé, etc.), des dispositifs à l'entrée et à la sortie des lignes, appelés accumulateurs. Ceux-ci entrent en action lorsque la vitesse d'entrée ou de sortie est différente de la vitesse du procédé sur la ligne et permettent en particulier le remplacement ou le raboutage des bobines sans interruption.It is known to use, in the continuous treatment plants for steel strips, in particular the cold treatment plants (rolling, annealing, pickling, dip coating, etc.), devices at the entrance and at the exit of the lines, called accumulators. These come into action when the input or output speed is different from the process speed on the line and allow in particular the replacement or splicing of the coils without interruption.

Il existe des accumulateurs verticaux et horizontaux.There are vertical and horizontal accumulators.

Dans un accumulateur horizontal, on trouve un ou plusieurs chariots déplaçables horizontalement sur un rail et assurant un bouclage de la bande généralement selon plusieurs brins superposés et défilant en sens opposé, grâce à des rouleaux de renvoi.In a horizontal accumulator, there is one or more carriages movable horizontally on a rail and ensuring a looping of the band generally according to several superposed strands and moving in opposite directions, with the return rollers.

Par exemple, si le chariot tire une bande selon quatre brins parallèles sur une distance de 100 mètres, la capacité d'accumulation est de 400 mètres. Le mouvement du chariot est assuré par une traction par câble dans un sens et par la traction de la bande elle-même dans l'autre sens.For example, if the truck pulls a strip along four parallel lines over a distance of 100 meters, the accumulation capacity is 400 meters. The movement of the carriage is ensured by a pulling cable in one direction and by pulling the strip itself in the other direction.

Cependant, les différents brins superposés doivent être supportés, sur toute la longueur de déplacement du chariot, par des bras ou des rouleaux montés sur des portiques, qui sont eux-mêmes montés fixes et de préférence équidistants. Ces bras ou rouleaux doivent bien entendu être montés amovibles, un mécanisme leur permettant d'une part de s'ouvrir et s'éclipser lors du passage du chariot et, d'autre part, de se remettre en position de soutien après le passage de celui-ci.However, the different superimposed strands must be supported, over the entire length of travel of the carriage, by arms or rollers mounted on gantries, which are themselves mounted fixed and preferably equidistant. These arms or rollers must of course be mounted removable, a mechanism allowing them on the one hand to open and slide off when the carriage passes and, on the other hand, to return to the support position after the passage of this one.

Le document GB-A-2 023 549 décrit un accumulateur pour une ligne de traitement de bande comprenant un chariot de bouclage à tambour se déplaçant horizontalement entre deux positions ainsi que des portails de support se trouvant sur le trajet du chariot. Chaque portail comprend, de chaque côté de la bande, un élément pivotant muni de bras ou rouleaux qui soutiennent la bande. Le chariot est muni de deux rouleaux verticaux (« rollers ») situés de part et d'autre de la bande qui permettent de faire pivoter les bras du portique lors du passage du chariot.The document GB-A-2,023,549 discloses an accumulator for a tape processing line comprising a drum loop carriage moving horizontally between two positions as well as support gates in the carriage path. Each gate comprises, on each side of the band, a pivoting element provided with arms or rollers which support the band. The carriage is provided with two vertical rollers ("rollers") located on either side of the band that allow to rotate the arms of the gantry during the passage of the carriage.

Le document FR-A-2 778 350 décrit une installation d'accumulation d'un produit en bande comprenant un chariot de bouclage portant au moins un organe de renvoi et des organes de support intermédiaires comportant chacun au moins un bras séparateur monté pivotant et actionné, au passage du chariot de bouclage, par un dispositif suiveur coopérant avec un dispositif à came monté sur le chariot de bouclage. La rotation de chaque bras est commandée par un ensemble de deux leviers reliés par une bielle et ayant deux positions angulaire stables qui déterminent le maintien du bras, respectivement dans une position écartée et dans une position engagée, tant que le galet n'est pas sollicité par le passage dans un sens ou dans l'autre de la surface active du dispositif à came.The document FR-A-2,778,350 discloses an installation for accumulating a strip product comprising a looping carriage carrying at least one return member and intermediate support members each comprising at least one separating arm pivotally mounted and actuated, at the passage of the looping carriage, by a follower device cooperating with a cam device mounted on the looping carriage. The rotation of each arm is controlled by a set of two levers connected by a connecting rod and having two stable angular positions which determine the holding of the arm, respectively in a remote position and in an engaged position, as long as the roller is not stressed by the passage in one direction or the other of the active surface of the cam device.

Le document FR-A-2 703 605 décrit un accumulateur horizontal de bande constitué par un tambour horizontal monté sur un chariot qui se déplace horizontalement et capable d'accumuler une longueur de bande sous forme d'une boucle à deux brins horizontaux et une série de rouleaux montés sur des bras pivotant autour d'axes verticaux et soutenant au moins l'un des brins de la boucle, ces rouleaux pouvant être éclipsés par rotation desdits bras par une came solidaire du chariot et coopérant avec des galets portés par lesdits bras. Pour réduire l'encombrement en largeur des cames et optimiser leur profil, chaque came est réalisée en deux parties disposées l'une derrière l'autre mais sans se raccorder l'une à l'autre et chaque bras porte deux galets, chaque galet étant apte à coopérer avec l'une des parties de la came pour faire pivoter le bras sur une partie de son trajet entre sa position de travail et sa position éclipsée et inversement.The document FR-A-2 703 605 discloses a horizontal strip accumulator consisting of a horizontal drum mounted on a carriage that moves horizontally and capable of accumulating a strip length in the form of a horizontal two-stranded loop and a series of rollers mounted on arms pivoting about vertical axes and supporting at least one of the strands of the loop, these rollers being eclipsed by rotation of said arms by a cam integral with the carriage and cooperating with rollers carried by said arms. To reduce the overall width of the cams and optimize their profile, each cam is made in two parts arranged one behind the other but without connecting to each other and each arm carries two rollers, each roller being adapted to cooperate with one of the parts of the cam to pivot the arm on part of its path between its working position and its eclipsed position and vice versa.

Le document FR-A-2 698 803 décrit un accumulateur horizontal de bande à chariot de bouclage comme décrit ci-dessus, mais comportant en outre plusieurs chariots portant des rouleaux soutenant la bande. Pour assurer un meilleur support de la bande en toutes positions, on prévoit le long de la voie de ces chariots des paires de butées qui définissent les positions d'arrêt des chariots et qui comprennent chacun une butée fixe et une butée éclipsable apte à être commandée par une came prévue sur les chariots, et chaque chariot peut être relié au chariot voisin par un système d'attelage comprenant un crochet, apte à être commandé par une came fixe, et un organe d'accrochage. Ce système présente un certain nombre d'inconvénients :

  • les chariots peuvent se décrocher ;
  • les chariots étant tirés par des câbles et la longueur de ceux-ci étant fixe, cela induit des limitations de mouvement et donc de capacité d'accumulation ;
  • les chariots munis de rouleaux présentant un certain encombrement, on perd en longueur de course et donc en accumulation.
The document FR-A-2,698,803 discloses a horizontal loop belt stack accumulator as described above, but further comprising a plurality of trolleys carrying rollers supporting the web. To ensure better support of the belt in all positions, there are provided along the track of these carriages pairs of stops which define the stop positions of the carriages and which each comprise a fixed stop and a retractable stop that can be controlled by a cam provided on the carriages, and each carriage can be connected to the adjacent carriage by a coupling system comprising a hook, adapted to be controlled by a fixed cam, and a fastening member. This system has a number of disadvantages:
  • the trolleys can be unhooked;
  • the carriages being pulled by cables and the length of these being fixed, this induces movement limitations and therefore accumulation capacity;
  • the trolleys provided with rollers having a certain size, one loses in stroke length and therefore in accumulation.

Les portiques de soutien fixes sont généralement réalisés sous formes de charpentes, comprenant une partie inférieure et une partie supérieure contenant les roulements pour la rotation des poutres verticales montées rotatives qui portent les bras de soutien éclipsables.The fixed support gantries are generally made in the form of frames, comprising a lower portion and an upper portion containing the bearings for the rotation of the rotatably mounted vertical beams which carry the eclipsable support arms.

Buts de l'inventionGoals of the invention

La présente invention vise à fournir une solution qui permette de s'affranchir des inconvénients de l'état de la technique.The present invention aims to provide a solution that makes it possible to overcome the disadvantages of the state of the art.

En particulier, l'invention vise à fournir un accumulateur horizontal dont les portiques de soutien fixes de la bande sont dépourvus de charpente supérieure, ce qui implique une simplification de l'installation, un gain de poids et une réalisation moins coûteuse.In particular, the invention aims to provide a horizontal accumulator whose fixed support gantries of the band are devoid of upper frame, which implies a simplification of the installation, a weight saving and a less expensive embodiment.

Principaux éléments caractéristiques de l'inventionMain characteristic elements of the invention

La présente invention se rapporte à un accumulateur horizontal de bande comprenant un chariot mobile horizontalement sur une ligne de fabrication, de préférence métallurgique, muni d'un ou plusieurs tambours à axe horizontal permettant chacun de former une boucle en épingle à cheveux à deux brins parallèles horizontaux, ledit chariot coopérant mécaniquement avec une pluralité de portes fixes, de préférence équidistantes sur la ligne, comprenant des poutres verticales situées de part et d'autre de la trajectoire de la bande et munies de bras horizontaux amovibles pour le soutien desdits brins, de manière telle que chaque porte s'ouvre par écartement automatique desdits bras de soutien selon une rotation dans un plan horizontal pour assurer le passage du chariot, caractérisé en ce que lesdites poutres verticales sont montées rotatives autour de leur axe sur un châssis, uniquement à leur base et ne sont pas maintenues à leur extrémité supérieure.The present invention relates to a horizontal strip accumulator comprising a carriage movable horizontally on a production line, Metallurgical preference, provided with one or more horizontal axis drums each for forming a horizontal parallel two-stranded hairpin loop, said carriage mechanically cooperating with a plurality of fixed, preferably equidistant, gates on the line, comprising beams vertical lines located on either side of the path of the strip and provided with removable horizontal arms for supporting said strands, such that each door opens by automatically spacing said support arms in a rotation in a horizontal plane to ensuring the passage of the carriage, characterized in that said vertical beams are rotatably mounted about their axis on a frame, only at their base and are not held at their upper end.

Selon l'invention, la connexion entre les poutres et ledit châssis est réalisée par butée à billes.According to the invention, the connection between the beams and said frame is made by ball thrust.

Toujours selon l'invention, lesdites portes sont dépourvues de charpente de soutien supérieure, les deux poutres verticales pouvant être reliées dans leur partie supérieure uniquement par un tirant de maintien.Still according to the invention, said doors are devoid of upper support structure, the two vertical beams can be connected in their upper part only by a holding tie.

Avantageusement, le chariot comporte à chacun de ses cotés latéraux une came ou glissière à forme sigmoïdale, dans laquelle vient s'insérer et chemine, au moment du passage du chariot, un galet solidaire d'un support monté pivotant autour d'un axe vertical et articulé à une tringlerie de commande d'ouverture des portes.Advantageously, the carriage comprises at each of its lateral sides a cam or slide with sigmoidal shape, in which is inserted and runs, at the time of the passage of the carriage, a roller secured to a support pivotally mounted about a vertical axis and articulated to a door opening control linkage.

De préférence, la came est configurée pour actionner un poussant sous forme de bras de levier horizontal articulé à une première extrémité au support du galet et à une seconde extrémité à la poutre verticale rotative correspondante de la porte, de manière à déclencher l'ouverture de la porte.Preferably, the cam is configured to actuate a lever in the form of a horizontal lever arm articulated at a first end to the support of the roller and at a second end to the corresponding rotating vertical beam of the door, so as to trigger the opening of the door.

L'accumulateur selon l'invention peut encore être avantageusement pourvu d'un dispositif à ressorts permettant aux portes de rester ouvertes ou fermées après le passage du chariot, selon le sens de passage, au moment où le galet sort de la came.The accumulator according to the invention may also be advantageously provided with a spring device allowing the doors to remain open or closed after the passage of the carriage, according to the direction of passage, at the moment when the roller comes out of the cam.

Toujours avantageusement, le chariot est muni de moyens de traction tels que des câbles exerçant une force opposée à celle exercée par la bande, qui permettent de le faire avancer dans le sens opposé à la bande.Still advantageously, the carriage is provided with traction means such as cables exerting a force opposite to that exerted by the band, which make it possible to advance it in the opposite direction to the band.

Brève description des figuresBrief description of the figures

Les figures 1A et 1B représentent schématiquement des vues en perspective du portail de soutien dans l'accumulateur selon la présente invention, en position fermée.The Figures 1A and 1B schematically represent perspective views of the support portal in the accumulator according to the present invention, in the closed position.

Les figures 2A et 2B représentent schématiquement des vues en perspective du portail de soutien dans l'accumulateur selon la présente invention, en position ouverte.The Figures 2A and 2B schematically represent perspective views of the support portal in the accumulator according to the present invention, in the open position.

Description d'une forme d'exécution préférée de l'inventionDescription of a preferred embodiment of the invention

Une forme d'exécution préférée de la présente invention est représentée sur les figures 1A, 1B (portes fermées) et 2A et 2B (portes ouvertes).A preferred embodiment of the present invention is shown on the Figures 1A , 1B (closed doors) and 2A and 2B (open doors).

Selon l'invention, l'accumulateur comporte un chariot mobile de bouclage, essentiellement comme décrit dans l'état de la technique, et un certain nombre de portes ou portails fixes 1 de support de la bande. Chaque porte 1 comprend deux poutres verticales 2 montées rotatives autour de leur axe et portant chacune une pluralité de demi-bras 3 de support horizontaux pour la bande, le nombre de bras correspondant au nombre de brins de l'accumulateur.According to the invention, the accumulator comprises a mobile looping carriage, essentially as described in the state of the art, and a number of fixed doors or gates 1 for supporting the band. Each door 1 comprises two vertical beams 2 rotatably mounted about their axis and each carrying a plurality of horizontal support half-arms 3 for the band, the number of arms corresponding to the number of strands of the accumulator.

Une caractéristique essentielle de l'invention est que chacune des deux poutres verticales de porte est montée à sa base, c'est-à-dire au sol, sur une butée à billes 4. Cette configuration permet de s'affranchir d'une charpente supérieure, comme c'est le cas dans l'état de la technique. Cette butée à billes 4 est destinée à reprendre les efforts verticaux et le couple de renversement. Dans l'état de la technique, les poutres verticales rotatives sont montées sur des roulements, situés respectivement au niveau de leur extrémité inférieure et de leur extrémité supérieure (voir par exemple FR-A-2 778 350 ).An essential feature of the invention is that each of the two vertical beams of door is mounted at its base, that is to say, on the ground, on a thrust ball 4. This configuration makes it possible to dispense with a higher frame, as is the case in the prior art . This thrust ball bearing 4 is intended to take up the vertical forces and the overturning torque. In the state of the art, the vertical rotating beams are mounted on bearings, located respectively at their lower end and their upper end (see for example FR-A-2,778,350 ).

Toujours selon l'invention, un tirant de maintien supérieur 5 peut avantageusement être prévu pour reprendre le jeu des extrémités supérieures des deux poutres verticales.Still according to the invention, an upper holding tie 5 can advantageously be provided to resume the play of the upper ends of the two vertical beams.

L'ouverture et la fermeture des portes au passage du chariot est commandée mécaniquement au niveau du sol par un système de deux cames ou glissières à forme sigmoïdale (non représentées), disposées de chaque côté du chariot. La tringlerie de commande, simplifiée, comporte un galet 6A sur un support 6B monté pivotant autour d'un axe vertical, ledit galet 6A étant articulé autour d'un bras de levier horizontal 7, lui-même articulé autour de l'axe vertical de la poutre 2 correspondante. Ainsi, au passage du chariot, lorsque le galet 6A s'engage dans la came, la pièce de support 6B du galet 6A pivote et le bras de levier articulé 7 tire ou pousse la poutre verticale 2, en son point d'articulation à celle-ci, ce qui fait tourner cette poutre dans un sens permettant aux demi-bras de support 3 de s'escamoter ou de se refermer, selon le cas. L'opération permettant l'ouverture/la fermeture simultanée des deux poutres permet le passage du chariot. Lorsque le chariot a franchi la porte, le galet sort de la came et les deux poutres restent dans la position escamotée ou fermée, sous l'effet d'un ressort de rappel (non représenté).The opening and closing of the doors at the passage of the carriage is controlled mechanically at ground level by a system of two cams or sigmoidal-shaped slides (not shown), arranged on each side of the carriage. The control linkage, simplified, comprises a roller 6A on a support 6B pivotally mounted about a vertical axis, said roller 6A being articulated around a horizontal lever arm 7, itself articulated around the vertical axis of the corresponding beam 2. Thus, when the carriage passes, when the roller 6A engages in the cam, the support part 6B of the roller 6A pivots and the articulated lever arm 7 pulls or pushes the vertical beam 2, at its point of articulation to that This causes this beam to rotate in a direction allowing the support half-arms 3 to retract or close, as the case may be. The operation allowing the simultaneous opening / closing of the two beams allows the passage of the carriage. When the carriage has passed the door, the roller comes out of the cam and the two beams remain in the retracted or closed position, under the effect of a return spring (not shown).

Comme le bras de levier 7 de la tringlerie précitée a une certaine longueur, le support de galet 6B et la poutre verticale 2 de porte peuvent être montés sur un seul châssis ou deux châssis séparés.As the lever arm 7 of the aforementioned linkage has a certain length, the roller support 6B and the vertical door beam 2 can be mounted on a single frame or two separate frames.

Vu l'absence de charpente supérieure, outre l'avantage de coût, l'accumulateur de l'invention présente l'avantage d'être très compact verticalement et donc d'être plus facile à intercaler en hauteur sur la ligne.Considering the absence of upper framework, in addition to the cost advantage, the accumulator of the invention has the advantage of being very compact vertically and therefore of being easier to interpose in height on the line.

Des caractéristiques techniques typiques pour un tel accumulateur peuvent être les suivantes:

  • longueur d'accumulation: 240 mètres;
  • nombre de brins de bande: 4-6 ;
  • largeur de bande: 600 à 1200 mm;
  • épaisseur de bande : 1 à 6 mm ;
  • vitesse de chariot maximale: 35 à 60 m/min.
Typical technical characteristics for such an accumulator may be the following:
  • accumulation length: 240 meters;
  • number of strands of tape: 4-6;
  • bandwidth: 600 to 1200 mm;
  • band thickness: 1 to 6 mm;
  • maximum trolley speed: 35 to 60 m / min.

Claims (7)

Accumulateur horizontal de bande comprenant un chariot mobile horizontalement sur une ligne de fabrication, de préférence métallurgique, muni d'un ou plusieurs tambours à axe horizontal permettant chacun de former une boucle en épingle à cheveux à deux brins parallèles horizontaux, ledit chariot coopérant mécaniquement avec une pluralité de portes fixes (1), de préférence équidistantes sur la ligne, comprenant des poutres verticales (2) situées de part et d'autre de la trajectoire de la bande et munies de bras horizontaux amovibles (3) pour le soutien desdits brins, de manière telle que chaque porte (1) s'ouvre par écartement automatique desdits bras de soutien (3) selon une rotation dans un plan horizontal pour assurer le passage du chariot, caractérisé en ce que lesdites poutres verticales (2) sont montées rotatives autour de leur axe sur un châssis (8), uniquement à leur base et ne sont pas maintenues à leur extrémité supérieure.Horizontal strip accumulator comprising a carriage movable horizontally on a manufacturing line, preferably metallurgical, provided with one or more horizontal axis drums each making it possible to form a horizontal parallel two-stranded hairpin loop, said carriage cooperating mechanically with a plurality of fixed doors (1), preferably equidistant on the line, comprising vertical beams (2) located on either side of the path of the strip and provided with removable horizontal arms (3) for supporting said strands , such that each door (1) opens by automatically spacing said support arms (3) in a rotation in a horizontal plane to ensure the passage of the carriage, characterized in that said vertical beams (2) are rotatably mounted around their axis on a frame (8), only at their base and are not held at their upper end. Accumulateur selon la revendication 1, caractérisé en ce que la connexion entre les poutres (2) et ledit châssis (8) est réalisée par butée à billes (4).Accumulator according to claim 1, characterized in that the connection between the beams (2) and said frame (8) is made by ball thrust (4). Accumulateur selon la revendication 1 ou 2, caractérisé en ce que lesdites portes (1) sont dépourvues de charpente de soutien supérieure, les deux poutres verticales (2) pouvant être reliées dans leur partie supérieure uniquement par un tirant de maintien (5).Accumulator according to claim 1 or 2, characterized in that said doors (1) are devoid of upper support structure, the two vertical beams (2) can be connected in their upper part only by a holding tie (5). Accumulateur selon la revendication 1, caractérisée en ce que le chariot comporte à chacun de ses cotés latéraux une came ou glissière à forme sigmoïdale, dans laquelle vient s'insérer et chemine, au moment du passage du chariot, un galet (6A) solidaire d'un support (6B) monté pivotant autour d'un axe vertical et articulé à une tringlerie de commande d'ouverture des portes (1).Accumulator according to claim 1, characterized in that the carriage comprises at each of its lateral sides a sigmoidal cam or slide, in which is inserted and runs, at the time of passage of the carriage, a roller (6A) integral with a support (6B) pivotally mounted about a vertical axis and hinged to a door opening control linkage (1). Accumulateur selon la revendication 4, caractérisée en ce que la came est configurée pour actionner un poussant (7) sous forme de bras de levier horizontal articulé à une première extrémité au support du galet (6A) et à une seconde extrémité à la poutre verticale rotative (2) correspondante de la porte (1), de manière à déclencher l'ouverture de la porte (1).Accumulator according to claim 4, characterized in that the cam is configured to actuate a lever (7) in the form of a horizontal lever arm articulated at a first end to the support of the roller (6A) and at a second end to the vertical rotating beam (2) corresponding to the door (1), so as to trigger the opening of the door (1). Accumulateur selon la revendication 1, caractérisée en ce qu'il est pourvu d'un dispositif à ressorts permettant aux portes (1) de rester ouvertes ou fermées après le passage du chariot, selon le sens de passage, au moment où le galet (6A) sort de la came.Accumulator according to claim 1, characterized in that it is provided with a spring device allowing the doors (1) to remain open or closed after the passage of the carriage, according to the direction of passage, at the moment when the roller (6A ) comes out of the cam. Accumulateur selon la revendication 1, caractérisée en ce que le chariot est muni de moyens de traction tels que des câbles exerçant une force opposée à celle exercée par la bande, qui permettent de le faire avancer dans le sens opposé à la bande.Accumulator according to claim 1, characterized in that the carriage is provided with traction means such as cables exerting a force opposite to that exerted by the band, which make it possible to advance it in the opposite direction to the band.
EP07447037A 2007-06-15 2007-06-15 Horizontal accumulator for a metal band Withdrawn EP2002906A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07447037A EP2002906A1 (en) 2007-06-15 2007-06-15 Horizontal accumulator for a metal band

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07447037A EP2002906A1 (en) 2007-06-15 2007-06-15 Horizontal accumulator for a metal band

Publications (1)

Publication Number Publication Date
EP2002906A1 true EP2002906A1 (en) 2008-12-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101829707A (en) * 2010-05-29 2010-09-15 无锡亚新通用机械有限公司 Strip blank storage device for rolling mill
EP2468428A1 (en) 2010-12-23 2012-06-27 Cockerill Maintenance & Ingéniérie Horizontal strip accumulator with telescoping of strip support roll carriages and passive location systems thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2023549A (en) * 1978-06-23 1980-01-03 Loewy Robertson Eng Co Ltd Web Accumulators
JPS61293606A (en) * 1985-06-20 1986-12-24 Mitsubishi Heavy Ind Ltd Device for supporting traveling strip
FR2698803A1 (en) * 1992-12-08 1994-06-10 Dujardin Montbard Somenor Horizontal accumulator for drum-wound strip or cord materials - comprises set of trolleys carrying winding drum and material supports, connected by releasable hooks actuated by track-mounted cams and stops
FR2703605A1 (en) * 1993-04-05 1994-10-14 Dujardin Montbard Somenor Horizontal belt accumulator (web storage device)
FR2778350A1 (en) * 1998-05-05 1999-11-12 Kvaerner Metals Clecim Banding station for goods on conveyor belt

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2023549A (en) * 1978-06-23 1980-01-03 Loewy Robertson Eng Co Ltd Web Accumulators
JPS61293606A (en) * 1985-06-20 1986-12-24 Mitsubishi Heavy Ind Ltd Device for supporting traveling strip
FR2698803A1 (en) * 1992-12-08 1994-06-10 Dujardin Montbard Somenor Horizontal accumulator for drum-wound strip or cord materials - comprises set of trolleys carrying winding drum and material supports, connected by releasable hooks actuated by track-mounted cams and stops
FR2703605A1 (en) * 1993-04-05 1994-10-14 Dujardin Montbard Somenor Horizontal belt accumulator (web storage device)
FR2778350A1 (en) * 1998-05-05 1999-11-12 Kvaerner Metals Clecim Banding station for goods on conveyor belt

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101829707A (en) * 2010-05-29 2010-09-15 无锡亚新通用机械有限公司 Strip blank storage device for rolling mill
EP2468428A1 (en) 2010-12-23 2012-06-27 Cockerill Maintenance & Ingéniérie Horizontal strip accumulator with telescoping of strip support roll carriages and passive location systems thereof
WO2012084913A1 (en) 2010-12-23 2012-06-28 Cockerill Maintenance & Ingenierie Horizontal strip accumulator with telescoping of strip support roll carriages and passive location systems thereof
US9371206B2 (en) 2010-12-23 2016-06-21 Cockerill Maintenance & Ingénierie S.A. Horizontal strip accumulator with telescoping of strip support roll carriages and passive location systems thereof

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