EP0446130A1 - Installation for straightening - Google Patents

Installation for straightening Download PDF

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Publication number
EP0446130A1
EP0446130A1 EP91400615A EP91400615A EP0446130A1 EP 0446130 A1 EP0446130 A1 EP 0446130A1 EP 91400615 A EP91400615 A EP 91400615A EP 91400615 A EP91400615 A EP 91400615A EP 0446130 A1 EP0446130 A1 EP 0446130A1
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EP
European Patent Office
Prior art keywords
unit
chassis
bending unit
frame
bending
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91400615A
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German (de)
French (fr)
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EP0446130B1 (en
Inventor
Jean Baptiste Peyron
Marc Pierre Furgerol
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Clecim SAS
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Clecim SAS
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Publication date
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Publication of EP0446130A1 publication Critical patent/EP0446130A1/en
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Publication of EP0446130B1 publication Critical patent/EP0446130B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/05—Stretching combined with rolling

Definitions

  • the subject of the invention is a leveling installation under tension of a metal strip and, more specifically, improvements facilitating the maintenance of such an installation.
  • the invention relates particularly to planing machines used in the various sectors of metallurgy in order to improve the mechanical characteristics and the flatness of the metal strips produced in a rolling installation.
  • Each flexure unit comprises a frame extending between two ends placed on either side of the strip and carrying a working cylinder mounted to rotate around an axis transverse to the direction of travel.
  • the working cylinder is of small diameter, in particular in the leveling units, and is supported on two rows spaced apart from support rollers or else on two intermediate cylinders which are themselves supported on three rows of rollers, l 'assembly forming a "leveling crew". But if the proportions allow it, for example for the hanger correction, the cylinder can only be supported and / or maintained at its ends.
  • a dismantling device integrated into the machine and comprising a support mounted to slide transversely in the frame of the machine, actuated manually or using an actuator such as a jack, and which removes the flexion unit requiring maintenance to spread it laterally on one side of the machine, the metal strip being able to remain in the machine, either at a standstill or during running.
  • the different control means are placed on the same side of the strip, the operator being placed, with his control console, on the other side and it is on the operator side that can be separated the bending units in the disassembly position.
  • the corresponding flexion unit (s) are removed from the operator side using the disassembly device and the cylinder (s) are replaced by hand or using handling means, the bending unit then being replaced inside the machine by the dismantling device.
  • the invention relates to improvements to the provisions usually used to facilitate maintenance and, in particular, the disassembly of the cylinder or cylinders of an upper bending unit.
  • the chassis of the upper bending unit is rotatably mounted on two aligned pins rotating respectively in two support members placed respectively at the two ends of the chassis and defining a horizontal axis of rotation around which the whole of the the upper bending unit can rotate between a working position for which the working cylinder is turned down and a maintenance and disassembly position for which the working cylinder is turned upwards, resting, if necessary, on the intermediate cylinders and on the support rollers.
  • each bending unit is mounted movable transversely to the direction of travel, between a working position for which the chassis of the bending unit is placed inside the frame of the machine and is removably fixed on corresponding means for controlling vertical movements, and a disassembly and maintenance position for which the chassis of the flexion unit has been spread laterally on one side of the frame of the machine and is supported on two members support placed at its two opposite ends, the machine being associated with means for selective control of the transverse movement of each bending unit between the working position and the disassembly position.
  • the means for controlling the transverse movement of the flexion units advantageously comprise a transfer carriage movable transversely between a position for taking over at least one flexion unit and the disassembly position.
  • the transfer carriage comprises at least one supporting part of the chassis of at least one bending unit, comprising a means for detachably fixing the support member from the end of the chassis turned to the side dismantling, and the machine frame is provided with rails and bearings extending transversely over its entire width and on which the support member of the opposite end of the chassis of the bending unit is supported, by l '' of rollers.
  • the support member of the chassis of each upper flexion unit placed on the disassembly side comprises a pin centered on the horizontal axis of rotation and rotating in a bearing mounted in an annular piece forming a bearing body and the removable fixing means of said support member comprises a jack mounted on the corresponding support piece of the transfer carriage and whose rod is provided with a stud capable of engaging in a corresponding housing of the bearing body, this the latter being able to rest on a support plate associated with said stud.
  • the support member for the chassis of the bending unit placed on the side opposite to the dismantling side, comprises a pin centered on the horizontal axis of rotation of the assembly and rotating in a bearing mounted in a flange support bearing on two corresponding running rails by means of two rollers.
  • the two support rollers of the support flange are each mounted at a free end of an arm, the opposite end of which is mounted pivoting about a horizontal axis on the support flange, the length of which is greater than the difference in height between the rest position and the extreme working position of the bending unit, the two arms being associated with an elastic means of return to the rest position.
  • Figure 1 shows the whole leveling machine, seen from the operator side.
  • Figure 2 is a cross-sectional view along line II-II of Figure 1.
  • Figure 3 is a detail view of a bending unit.
  • Figure 4 is an end view along arrow IV of Figure 3.
  • Figure 5 is a detail view, in cross section to the axis of rotation, of the support member on the disassembly side.
  • Figure 1 shows, in side view, a fairly complete leveling machine equipped with four bending units for leveling, two upper units A1, A2 and two lower units B1, B2, a bending unit C for tile correction and a bending unit D for the hanger correction.
  • the metal strip M driven by unrepresented means of travel control and tensioning passes between the different bending units along a mean travel plane P, defined by deflection rollers E, placed at the two ends of the machine.
  • Other deflector rollers F can be associated with the different bending units between which the strip follows an undulating path, the amplitude of which depends on the respective positions of the different bending units.
  • the whole machine is placed inside a rigid frame 1 comprising in particular two sides 10 and a base 11, and with which is associated a carriage 2 for dismantling the different bending units.
  • each bending unit such as the upper unit 3 comprises an elongated frame consisting of a beam 30 extending between two end pieces 31, 31 ′ and carrying a working cylinder 4 which rests on two intermediate cylinders 41.
  • the working cylinder 4 and the intermediate cylinders 41 are rotatably mounted around parallel axes 40 between stops 32 carried by the end pieces 31.
  • the two intermediate cylinders 41 bear on three rows of rollers 42 mounted to rotate on the beam 30 around axes of rotation 43 parallel to the axes 40 of the cylinders.
  • Each flexion unit 3, 3 ′ is mounted to slide vertically in the frame along parallel guide faces 39 cooperating with corresponding faces 16 formed on the uprights 10 of the frame, and is associated with means 12, 12 ′ for controlling the vertical movements allowing each flexion unit 3, 3 ′ to pass from a rest position separated from the strip M to a working position the level of which is fixed by stops.
  • the means 12 for moving the upper unit 3 are generally double-acting hydraulic cylinders to which the chassis 30 is attached.
  • the means 12 ′ for moving the lower unit 3 ′ can be simple mechanical jacks on which the unit 3 ′ is placed and which also make it possible to adjust the position thereof, returning to the rest position by gravity.
  • the chassis 3 of the upper bending unit is rotatably mounted on two support members 5 and 6, by means of two pins 33, 34 placed respectively at its two ends and centered on a horizontal axis 35 parallel to the axis 40 of the working cylinder 4.
  • the support member 5 placed on the dismantling side that is to say on the operator side, comprises an annular part 51 constituting a bearing body in which the pin 33 is rotatably mounted.
  • the support member 6 placed on the opposite side that is to say on the control side, itself comprises a flange 61 carrying a bearing body 62 in which the pin 34 is rotatably mounted.
  • the beam 3 is provided with suspension members 36 which can be removably engaged on jacks 12 fixed on the sides 10 of the frame and constituting the means for controlling the vertical movement of the bending unit 3.
  • the rod of each cylinder 12 can be provided with an enlarged head 13 which can slide into a mortise 37 formed on the corresponding suspension part 36 of the chassis 30.
  • the frame 30 of the upper flexion unit 3 is therefore fixed by the parts 36 to the rods 13 of the two support cylinders 12 which allow to place the flexion unit 3, either in a raised rest position for which the working cylinder 4 is moved away from the passage plane P of the strip, or in a lowered position, for which the working cylinder 4 is at a working level adjusted by stops and allowing to apply a determined flexion to the strip M.
  • the bending unit 3 can be detached from the jacks 12 by simple horizontal displacement parallel to the axes 40 of the cylinders.
  • the carriage 2 comprises a horizontal frame 21 bearing on the floor 15 by means of rollers 22 and being able to move horizontally and in a direction transverse to the longitudinal direction of travel under the action of a jack 23 whose body is articulated on the frame 10 of the machine and whose rod is articulated on the chassis 21 of the carriage 2.
  • the latter can thus take two positions, respectively a position of support for which the frame 21 is threaded into the base 11 of the frame 10 of the machine and a disassembly position, shown in Figure 2, for which the frame 21 is spaced laterally on the operator side.
  • the transfer carriage 2 further comprises support pieces 24, 25 in the form of an easel, integral with the horizontal frame 21 and extending vertically on different levels corresponding respectively to the different bending units.
  • the easel 24 for supporting the upper bending unit 3 extends to a level slightly lower than that of the axis of rotation 35 and is provided a removable fixing member of the support member 5, placed on the operator side, and which may be constituted by a jack 7.
  • the jack 7 comprises a body 71 mounted on the easel 24 optionally by means of shims of adjustable thicknesses and a rod 72 which is provided with a support plate 73 and a stud 74.
  • the bridge 24 When the transfer carriage 2 is placed in the support position, the bridge 24 is aligned with the support member 5 and, by actuating the jack 7, the plate 73 comes to bear on the bearing body 51 which is provided with a housing 52 in which the stud 74 engages.
  • the support member 6 placed at the opposite end of the chassis 30 of the flexion unit 3 bears itself, by means of rolling rollers 63, on horizontal rails 14 extending transversely between the two 10 sides of the frame.
  • each roller 63 is mounted at the free end of an arm 64, the other end of which is articulated, around a horizontal axis 65, on the flange 61 of the member support 6.
  • Springs 66 stretched between each arm 64 and an attachment piece 67 secured to the flange 61 keep the frame 30 in the raised position shown in Figure 2 and for which the suspension pieces 36 are at heads 13 of the control cylinders 12.
  • Screws 68 make it possible to adjust the upper position in which the chassis 30 is returned under the action of the springs 66 so that, in this position, the mortises 37 are located exactly at the desired level.
  • the upper unit 3 When the upper unit 3 is in the disassembly position shown in Figure 2, it is possible to rotate it, for example manually, around the horizontal axis 35 defined by the pins 33 and 34, the assembly being able to be balanced to facilitate turning.
  • the unit 3 is locked in the inverted position by suitable means which will be described later.
  • the working cylinder 4 is turned upwards by resting on the intermediate cylinders 41 and it is therefore easy to intervene on the cylinders, for example to clean, repair or replace them.
  • the unit 3 can in fact be transported in its inverted position by means of hooks 48 placed at the level of the cylinders, or else of bars passing through holes 49 made in the chassis 30. In this way, it is avoided having to turn over unit 3 in the workshop, this operation being made more easily on site thanks to the arrangements according to the invention.
  • a means for locking the chassis 30 in the position reversed is shown in detail, by way of example, in Figure 5.
  • the support member 5 is provided with a fixing device 53 comprising a finger 54 which can engage in a bore 55 diametrically passing through the pin 33.
  • the support member 6, placed on the opposite side is fitted with a similar fixing device.
  • the chassis 30 is thus fixed in the inverted position shown in FIG. 3. In this position, each working cylinder 4 is turned upwards and simply rests on the intermediate cylinders 31, the latter resting themselves on the three rows of rollers 42.
  • the de-camber cylinder must have a larger diameter and can possibly resist bending alone by resting on its bearings 32, the support rollers 42 then being deleted.
  • the invention therefore makes it possible to intervene very easily on the bending unit 3 to maintain or replace one or the other of the cylinders 4 and 41 as well as the support rollers 42, if necessary. Then, it suffices to remove the two pins 54 and to rotate the frame 30 to bring it back to the working position for which the working rolls are turned downwards.
  • the pins 54 do not have to undergo a significant effort to maintain the flexion unit in one either of the two positions.
  • the support members 5 and 6 and, consequently, the pins 54 do not have to undergo any force, the chassis 30 being guided by plane faces 39 sliding along corresponding faces 16 formed on the uprights 10 of the machine frame.
  • each lower bending unit 3 ′ will be mounted in a simpler manner, the support members being eliminated.
  • the end plate 311 turned on the operator side is provided with a simple console portion 350 which can rest on a jack 75 mounted on the bridge 25 and whose rod is provided, as before, with a stud. coming to engage in a corresponding housing of the console 350 so that the chassis 30 ′ is driven by the transfer carriage 2 for disassembly.
  • the opposite plate 312 bears directly on rails 14 ′ by means of rollers 63 ′.
  • the chassis 30 ′ can be provided with hooking members 37 ′ which engage on the actuator rods 12 ′ for controlling the movement which, in the example shown, are mechanical jacks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Paper (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Floor Finish (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Wire Processing (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Crushing And Grinding (AREA)

Abstract

The subject of the invention is an installation for straightening, under traction, metal strip, comprising, on the inside of a frame (10), at least two bending units (3, 3') which are longitudinally offset and placed respectively above and below the strip, carrying at least one working cylinder (4) mounted so as to rotate about a transverse axis (40). <??>According to the invention, the chassis (30) of at least one upper bending unit (3) is mounted so as to rotate on two aligned journals (33, 34), about which the bending unit (3) assembly may rotate between a working position for which the working cylinder (4) faces downwards and into a reverse position for which the working cylinder (4) faces upwards and may thus be easily maintained or replaced. <??>The invention relates especially to the manufacture and the finishing of metal strip and may be applied not only to the so-called planishers but also to any device acting by bending-traction, for example for the correction of tiles or of arches, or else for breaking off oxides in the descaling line. <IMAGE>

Description

L'invention a pour objet une installation de planage sous traction d'une bande métallique et, plus précisément, des perfectionnements facilitant l'entretien d'une telle installation.The subject of the invention is a leveling installation under tension of a metal strip and, more specifically, improvements facilitating the maintenance of such an installation.

L'invention se rapporte spécialement aux machines à planer utilisées dans les différents secteurs de la métallurgie en vue d'améliorer les caractéristiques mécaniques et la planéité des bandes de métal produites dans une installation de laminage.The invention relates particularly to planing machines used in the various sectors of metallurgy in order to improve the mechanical characteristics and the flatness of the metal strips produced in a rolling installation.

D'une façon générale, une machine de planage comprend un certain nombre de rouleaux définissant un trajet ondulé et lesquels la bande défile et subit sous traction des déformations permettant le planage. A cet effet, la machine comporte, à l'intérieur d'un bâti, au moins deux unités de flexion décalées longitudinalement, respectivement une unité supérieure et une unité inférieure, placées respectivement au-dessus et en dessous de la bande et des moyens de commande séparés de déplacements verticaux de chaque unité de flexion, transversalement au plan de défilement de la bande, entre une position réglable de planage et une position de repos écartée de la bande. Généralement, une telle machine comprend un certain nombre d'unités de flexion successives telles que :

  • un ou plusieurs ensembles de planage proprement dit, constitués chacun d'une unité de flexion supérieure et d'une unité de flexion inférieure, réglables verticalement par des systèmes mécaniques ou hydrauliques ;
  • une unité de flexion portant un rouleau "correcteur de tuile" réglable verticalement par un système mécanique ;
  • une unité de flexion portant un rouleau "correcteur de cintre" ou de "décambrage" réglable verticalement par un système mécanique.
In general, a leveling machine comprises a number of rollers defining an undulating path and which the strip passes and undergoes under tension deformations allowing leveling. For this purpose, the machine comprises, inside a frame, at least two flexion units offset longitudinally, respectively an upper unit and a lower unit, placed respectively above and below the strip and means of separate control of vertical displacements of each bending unit, transverse to the running plane of the strip, between an adjustable leveling position and a rest position separated from the strip. Generally, such a machine comprises a number of successive bending units such as:
  • one or more leveling units proper, each consisting of an upper bending unit and a lower bending unit, adjustable vertically by mechanical or hydraulic systems;
  • a bending unit carrying a roller "tile corrector" adjustable vertically by a mechanical system;
  • a bending unit carrying a "hanger corrector" or "reaming" roller adjustable vertically by a mechanical system.

Différentes configurations de machines peuvent être utilisées selon le domaine d'application.Different machine configurations can be used depending on the area of application.

Chaque unité de flexion comprend un châssis s'étendant entre deux extrémités placées de part et d'autre de la bande et portant un cylindre de travail monté rotatif autour d'un axe transversal à la direction de défilement. Généralement le cylindre de travail est de faible diamètre, en particulier dans les unités de planage, et prend appui sur deux rangées écartées de galets d'appui ou bien sur deux cylindres intermédiaires qui sont eux-mêmes en appui sur trois rangées de galets, l'ensemble formant un "équipage de planage". Mais si les proportions le permettent, par exemple pour la correction de cintre, le cylindre peut n'être supporté et/ou maintenu qu'à ses extrémités.Each flexure unit comprises a frame extending between two ends placed on either side of the strip and carrying a working cylinder mounted to rotate around an axis transverse to the direction of travel. Generally the working cylinder is of small diameter, in particular in the leveling units, and is supported on two rows spaced apart from support rollers or else on two intermediate cylinders which are themselves supported on three rows of rollers, l 'assembly forming a "leveling crew". But if the proportions allow it, for example for the hanger correction, the cylinder can only be supported and / or maintained at its ends.

En cours de fonctionnement, la production peut nécessiter le remplacement des cylindres de travail et/ou des cylindres intermédiaires ou même de l'ensemble d'une unité de flexion complète, pour nettoyage, entretien, ou mise en place de cylindres de diamètre différent. A cet effet, il est intéressant d'utiliser un dispositif de démontage intégré à la machine et comportant un support monté coulissant transversalement dans le bâti de la machine, actionné manuellement ou à l'aide d'un actionneur tel qu'un vérin, et qui permet d'enlever l'unité de flexion nécessitant un entretien pour l'écarter latéralement sur un côté de la machine, la bande métallique pouvant rester dans la machine, soit à l'arrêt, soit en cours de défilement. Généralement, dans une telle installation, les différents moyens de commande sont placés sur un même côté de la bande, l'opérateur étant placé, avec son pupitre de commande, sur l'autre côté et c'est du côté opérateur que peuvent être écartées les unités de flexion en position de démontage.During operation, production may require the replacement of working cylinders and / or intermediate cylinders or even the whole of a complete bending unit, for cleaning, maintenance, or installation of cylinders of different diameter. To this end, it is advantageous to use a dismantling device integrated into the machine and comprising a support mounted to slide transversely in the frame of the machine, actuated manually or using an actuator such as a jack, and which removes the flexion unit requiring maintenance to spread it laterally on one side of the machine, the metal strip being able to remain in the machine, either at a standstill or during running. Generally, in such an installation, the different control means are placed on the same side of the strip, the operator being placed, with his control console, on the other side and it is on the operator side that can be separated the bending units in the disassembly position.

On peut être amené à effectuer le démontage d'une seule unité de flexion ou de plusieurs unités en même temps. Lorsque l'on veut remplacer une unité de flexion complète ou bien plusieurs unités, on les retire du côté opérateur grâce au dispositif de démontage puis on effectue leur remplacement à l'aide d'un moyen de manutention extérieur tel qu'un pont roulant. La ou les nouvelles unités de flexion sont alors remises en place par le dispositif de démontage à l'intérieur de la machine, en position de travail.It may be necessary to carry out the dismantling of a single bending unit or of several units at the same time. When you want to replace a complete bending unit or several units, they are removed from the operator side using the dismantling device and then they are replaced using an external handling means such as an overhead crane. The new bending unit (s) are then replaced by the dismantling device inside the machine, in the working position.

Lorsque l'on veut remplacer seulement un ou plusieurs cylindres, la ou les unités de flexion correspondantes sont retirées du côté opérateur à l'aide du dispositif de démontage et l'on remplace le ou les cylindres à la main ou à l'aide d'un moyen de manutention, l'unité de flexion étant remise en place ensuite à l'intérieur de la machine par le dispositif de démontage.When it is desired to replace only one or more cylinders, the corresponding flexion unit (s) are removed from the operator side using the disassembly device and the cylinder (s) are replaced by hand or using handling means, the bending unit then being replaced inside the machine by the dismantling device.

L'invention a pour objet des perfectionnements aux dispositions utilisées habituellement permettant de faciliter l'entretien et, en particulier, le démontage du ou des cylindres d'une unité de flexion supérieure.The invention relates to improvements to the provisions usually used to facilitate maintenance and, in particular, the disassembly of the cylinder or cylinders of an upper bending unit.

Conformément à l'invention, le châssis de l'unité de flexion supérieure est monté rotatif sur deux tourillons alignés tournant respectivement dans deux organes de support placés respectivement aux deux extrémités du châssis et définissant un axe horizontal de rotation autour duquel l'ensemble de l'unité de flexion supérieure peut tourner entre une position de travail pour laquelle le cylindre de travail est tourné vers le bas et une position d'entretien et de démontage pour laquelle le cylindre de travail est tourné vers le haut en reposant, le cas échéant, sur les cylindres intermédiaires et sur les galets d'appui.According to the invention, the chassis of the upper bending unit is rotatably mounted on two aligned pins rotating respectively in two support members placed respectively at the two ends of the chassis and defining a horizontal axis of rotation around which the whole of the the upper bending unit can rotate between a working position for which the working cylinder is turned down and a maintenance and disassembly position for which the working cylinder is turned upwards, resting, if necessary, on the intermediate cylinders and on the support rollers.

De préférence, chaque unité de flexion est montée déplaçable transversalement à la direction de défilement, entre une position de travail pour laquelle le châssis de l'unité de flexion est placé à l'intérieur du bâti de la machine et est fixé de façon amovible sur des moyens correspondants de commande de déplacements verticaux, et une position de démontage et d'entretien pour laquelle le châssis de l'unité de flexion a été écarté latéralement sur un côté du bâti de la machine et prend appui sur deux organes de support placés à ses deux extrémités opposées, la machine étant associée à des moyens de commande sélective du déplacement transversal de chaque unité de flexion entre la position de travail et la position de démontage.Preferably, each bending unit is mounted movable transversely to the direction of travel, between a working position for which the chassis of the bending unit is placed inside the frame of the machine and is removably fixed on corresponding means for controlling vertical movements, and a disassembly and maintenance position for which the chassis of the flexion unit has been spread laterally on one side of the frame of the machine and is supported on two members support placed at its two opposite ends, the machine being associated with means for selective control of the transverse movement of each bending unit between the working position and the disassembly position.

Les moyens de commande du déplacement transversal des unités de flexion comprennent avantageusement un chariot de transfert mobile transversalement entre une position de prise en charge d'au moins une unité de flexion et la position de démontage. De façon particulièrement avantageuse, le chariot de transfert comprend au moins une pièce d'appui du châssis d'au moins une unité de flexion, comprenant un moyen de fixation amovible de l'organe de support de l'extrémité du châssis tourné vers le côté de démontage, et le bâti de la machine est muni de rails et de roulements s'étendant transversalement sur toute sa largeur et sur lesquels prend appui l'organe de support de l'extrémité opposée du châssis de l'unité de flexion, par l'intermédiaire de galets de roulement.The means for controlling the transverse movement of the flexion units advantageously comprise a transfer carriage movable transversely between a position for taking over at least one flexion unit and the disassembly position. In a particularly advantageous manner, the transfer carriage comprises at least one supporting part of the chassis of at least one bending unit, comprising a means for detachably fixing the support member from the end of the chassis turned to the side dismantling, and the machine frame is provided with rails and bearings extending transversely over its entire width and on which the support member of the opposite end of the chassis of the bending unit is supported, by l '' of rollers.

Dans un mode de réalisation préférentiel, l'organe de support du châssis de chaque unité de flexion supérieure placé du côté du démontage comprend un tourillon centré sur l'axe de rotation horizontal et tournant dans un palier monté dans une pièce annulaire formant corps de palier et le moyen de fixation amovible dudit organe de support comprend un vérin monté sur la pièce d'appui correspondante du chariot de transfert et dont la tige est munie d'un téton susceptible de s'engager dans un logement correspondant du corps de palier, ce dernier pouvant reposer sur une plaque d'appui associée audit téton.In a preferred embodiment, the support member of the chassis of each upper flexion unit placed on the disassembly side comprises a pin centered on the horizontal axis of rotation and rotating in a bearing mounted in an annular piece forming a bearing body and the removable fixing means of said support member comprises a jack mounted on the corresponding support piece of the transfer carriage and whose rod is provided with a stud capable of engaging in a corresponding housing of the bearing body, this the latter being able to rest on a support plate associated with said stud.

Par ailleurs, l'organe de support du châssis de l'unité de flexion, placé du côté opposé au côté de démontage, comprend un tourillon centré sur l'axe de rotation horizontal de l'ensemble et tournant dans un palier monté dans un flasque de support prenant appui sur deux rails de roulement correspondants par l'intermédiaire de deux galets. Pour permettre les déplacements de l'unité de flexion supérieure entre sa position de repos et la position de travail, les deux galets d'appui du flasque de support sont montés chacun à une extrémité libre d'un bras dont l'extrémité opposée est montée pivotante autour d'un axe horizontal sur le flasque de support dont la longueur est supérieure à la différence de hauteur entre la position de repos et la position extrême de travail de l'unité de flexion, les deux bras étant associés à un moyen élastique de rappel dans la position de repos.Furthermore, the support member for the chassis of the bending unit, placed on the side opposite to the dismantling side, comprises a pin centered on the horizontal axis of rotation of the assembly and rotating in a bearing mounted in a flange support bearing on two corresponding running rails by means of two rollers. To allow the upper flexion unit to move between its rest position and the working position, the two support rollers of the support flange are each mounted at a free end of an arm, the opposite end of which is mounted pivoting about a horizontal axis on the support flange, the length of which is greater than the difference in height between the rest position and the extreme working position of the bending unit, the two arms being associated with an elastic means of return to the rest position.

Mais l'invention sera mieux comprise par la description suivante d'un mode de réalisation préférentiel, donné à titre d'exemple et représenté sur les dessins annexés.However, the invention will be better understood from the following description of a preferred embodiment, given by way of example and shown in the accompanying drawings.

La Figure 1 montre l'ensemble de la machine de planage, vu du côté opérateur.Figure 1 shows the whole leveling machine, seen from the operator side.

La Figure 2 est une vue en coupe transversale selon la ligne II-II de la figure 1.Figure 2 is a cross-sectional view along line II-II of Figure 1.

La Figure 3 est une vue de détail d'une unité de flexion.Figure 3 is a detail view of a bending unit.

La Figure 4 est une vue de bout selon la flêche IV de la Figure 3.Figure 4 is an end view along arrow IV of Figure 3.

La Figure 5 est une vue de détail, en coupe transversale à l'axe de rotation, de l'organe de support du côté de démontage.Figure 5 is a detail view, in cross section to the axis of rotation, of the support member on the disassembly side.

La Figure 1 montre, en vue de côté, une machine de planage assez complète équipée de quatre unités de flexion pour planage, deux unités supérieures A1, A2 et deux unités inférieures B1, B2, une unité de flexion C pour la correction de tuile et une unité de flexion D pour la correction de cintre. La bande métallique M, entraînée par des moyens non représentés de commande de défilement et de mise sous traction passe entre les différentes unités de flexion suivant un plan moyen de défilement P, défini par des rouleaux déflecteurs E, placés aux deux extrémités de la machine. D'autres rouleaux déflecteurs F peuvent être associés aux différentes unités de flexion entre lesquelles la bande suit un trajet ondulé dont l'amplitude dépend des positions respectives des différentes unités de flexion.Figure 1 shows, in side view, a fairly complete leveling machine equipped with four bending units for leveling, two upper units A1, A2 and two lower units B1, B2, a bending unit C for tile correction and a bending unit D for the hanger correction. The metal strip M, driven by unrepresented means of travel control and tensioning passes between the different bending units along a mean travel plane P, defined by deflection rollers E, placed at the two ends of the machine. Other deflector rollers F can be associated with the different bending units between which the strip follows an undulating path, the amplitude of which depends on the respective positions of the different bending units.

L'ensemble de la machine est placé à l'intérieur d'un bâti rigide 1 comportant notamment deux côtés 10 et une base 11, et auquel est associé un chariot 2 de démontage des différentes unités de flexion.The whole machine is placed inside a rigid frame 1 comprising in particular two sides 10 and a base 11, and with which is associated a carriage 2 for dismantling the different bending units.

Pour fixer les idées, la description qui va suivre se réfère aux unités de flexion pour planage telles que A₁, A₂, B₁, B₂ mais les dispositions décrites seraient directement applicables aux autres unités de flexion C et D.To fix the ideas, the description which follows refers to the bending units for leveling such as A₁, A₂, B₁, B₂ but the provisions described would be directly applicable to the other bending units C and D.

Sur la Figure 2, on a représenté à titre d'exemple, et en position de démontage, deux unités de flexion, respectivement une unité supérieure 3 et une unité inférieure 3′. Comme on le voit plus en détail sur les Figures 3 et 4, chaque unité de flexion telle que l'unité supérieure 3 comprend un châssis allongé constitué d'une poutre 30 s'étendant entre deux pièces d'extrémité 31, 31′ et portant un cylindre de travail 4 qui prend appui sur deux cylindres intermédiaires 41. Le cylindre de travail 4 ainsi que les cylindres intermédiaires 41 sont montés rotatifs autour d'axes parallèles 40 entre des butées 32 portées par les pièces d'extrémité 31. Par ailleurs, les deux cylindres intermédiaires 41 prennent appui sur trois rangées de galets 42 montés rotatifs sur la poutre 30 autour d'axes de rotation 43 parallèles aux axes 40 des cylindres.In Figure 2, there is shown by way of example, and in the disassembly position, two bending units, respectively an upper unit 3 and a lower unit 3 ′. As seen in more detail in Figures 3 and 4, each bending unit such as the upper unit 3 comprises an elongated frame consisting of a beam 30 extending between two end pieces 31, 31 ′ and carrying a working cylinder 4 which rests on two intermediate cylinders 41. The working cylinder 4 and the intermediate cylinders 41 are rotatably mounted around parallel axes 40 between stops 32 carried by the end pieces 31. Furthermore, the two intermediate cylinders 41 bear on three rows of rollers 42 mounted to rotate on the beam 30 around axes of rotation 43 parallel to the axes 40 of the cylinders.

Chaque unité de flexion 3, 3′ est montée coulissant verticalement dans le bâti le long de faces de guidage parallèles 39 coopérant avec des faces correspondantes 16 ménagées sur les montants 10 du bâti, et est associée à des moyens 12, 12′ de commande des déplacements verticaux permettant de faire passer chaque unité de flexion 3, 3′ d'une position de repos écartée de la bande M à une position de travail dont le niveau est fixé par des butées.Each flexion unit 3, 3 ′ is mounted to slide vertically in the frame along parallel guide faces 39 cooperating with corresponding faces 16 formed on the uprights 10 of the frame, and is associated with means 12, 12 ′ for controlling the vertical movements allowing each flexion unit 3, 3 ′ to pass from a rest position separated from the strip M to a working position the level of which is fixed by stops.

De façon connue, les moyens 12 de déplacement de l'unité supérieure 3 sont généralement des vérins hydrauliques à double effet auxquels le châssis 30 est accroché. En revanche, les moyens 12′ de déplacement de l'unité inférieure 3′ peuvent être de simples vérins mécaniques sur lesquels est posée l'unité 3′ et qui permettent aussi de régler la position de celle-ci, le retour en position de repos s'effectuant par gravité.In known manner, the means 12 for moving the upper unit 3 are generally double-acting hydraulic cylinders to which the chassis 30 is attached. On the other hand, the means 12 ′ for moving the lower unit 3 ′ can be simple mechanical jacks on which the unit 3 ′ is placed and which also make it possible to adjust the position thereof, returning to the rest position by gravity.

Selon la caractéristique essentielle de l'invention, le châssis 3 de l'unité de flexion supérieure est monté rotatif sur deux organes de support 5 et 6, par l'intermédiaire de deux tourillons 33, 34 placés respectivement à ses deux extrémités et centrés sur un axe horizontal 35 parallèle à l'axe 40 du cylindre de travail 4.According to the essential characteristic of the invention, the chassis 3 of the upper bending unit is rotatably mounted on two support members 5 and 6, by means of two pins 33, 34 placed respectively at its two ends and centered on a horizontal axis 35 parallel to the axis 40 of the working cylinder 4.

L'organe de support 5 placé du côté du démontage, c'est-à-dire du côté opérateur, comprend une pièce annulaire 51 constituant un corps de palier dans lequel est monté rotatif le tourillon 33.The support member 5 placed on the dismantling side, that is to say on the operator side, comprises an annular part 51 constituting a bearing body in which the pin 33 is rotatably mounted.

L'organe de support 6 placé du côté opposé, c'est-à-dire du côté de la commande, comporte lui-même un flasque 61 portant un corps de palier 62 dans lequel est monté rotatif le tourillon 34.The support member 6 placed on the opposite side, that is to say on the control side, itself comprises a flange 61 carrying a bearing body 62 in which the pin 34 is rotatably mounted.

Par ailleurs, la poutre 3 est munie d'organes de suspension 36 qui peuvent s'engager de façon amovible sur des vérins 12 fixés sur les côtés 10 du bâti et constituant les moyens de commande du déplacement vertical de l'unité de flexion 3. Comme on le voit notamment sur les Figures 2, 3 et 4, la tige de chaque vérin 12 peut être munie d'une tête élargie 13 qui peut s'engager par coulissement dans une mortaise 37 ménagée sur la pièce de suspension 36 correspondante du châssis 30.Furthermore, the beam 3 is provided with suspension members 36 which can be removably engaged on jacks 12 fixed on the sides 10 of the frame and constituting the means for controlling the vertical movement of the bending unit 3. As seen in particular in Figures 2, 3 and 4, the rod of each cylinder 12 can be provided with an enlarged head 13 which can slide into a mortise 37 formed on the corresponding suspension part 36 of the chassis 30.

Dans la position de travail représentée sur la Figure 1, le châssis 30 de l'unité de flexion supérieure 3 est donc fixé par les pièces 36 aux tiges 13 des deux vérins d'appui 12 qui permettent de placer l'unité de flexion 3, soit dans une position de repos relevée pour laquelle le cylindre de travail 4 est écarté du plan de passage P de la bande, soit dans une position abaissée, pour laquelle le cylindre de travail 4 se trouve à un niveau de travail réglé par des butées et permettant d'appliquer une flexion déterminée à la bande M.In the working position shown in Figure 1, the frame 30 of the upper flexion unit 3 is therefore fixed by the parts 36 to the rods 13 of the two support cylinders 12 which allow to place the flexion unit 3, either in a raised rest position for which the working cylinder 4 is moved away from the passage plane P of the strip, or in a lowered position, for which the working cylinder 4 is at a working level adjusted by stops and allowing to apply a determined flexion to the strip M.

On voit que l'unité de flexion 3 peut être décrochée des vérins 12 par simple déplacement horizontal parallèle aux axes 40 des cylindres.It can be seen that the bending unit 3 can be detached from the jacks 12 by simple horizontal displacement parallel to the axes 40 of the cylinders.

A cet effet, on utilise le chariot de démontage 2 représenté sur les Figures 1 et 2.For this purpose, use is made of the dismantling carriage 2 shown in FIGS. 1 and 2.

Comme on le voit notamment sur la Figure 2, le chariot 2 comprend un châssis horizontal 21 prenant appui sur le plancher 15 par l'intermédiaire de galets de roulement 22 et pouvant se déplacer horizontalement et suivant une direction transversale à la direction longitudinale de défilement sous l'action d'un vérin 23 dont le corps est articulé sur le bâti 10 de la machine et dont la tige est articulée sur le châssis 21 du chariot 2. Ce dernier peut ainsi prendre deux positions, respectivement une position de prise en charge pour laquelle le châssis 21 est enfilé dans la base 11 du bâti 10 de la machine et une position de démontage, représentée sur la Figure 2, pour laquelle le châssis 21 est écarté latéralement du côté opérateur.As seen in particular in Figure 2, the carriage 2 comprises a horizontal frame 21 bearing on the floor 15 by means of rollers 22 and being able to move horizontally and in a direction transverse to the longitudinal direction of travel under the action of a jack 23 whose body is articulated on the frame 10 of the machine and whose rod is articulated on the chassis 21 of the carriage 2. The latter can thus take two positions, respectively a position of support for which the frame 21 is threaded into the base 11 of the frame 10 of the machine and a disassembly position, shown in Figure 2, for which the frame 21 is spaced laterally on the operator side.

Le chariot de transfert 2 comprend d'autre part des pièces d'appui 24, 25 en forme de chevalet, solidaires du châssis horizontal 21 et s'étendant verticalement sur différents niveaux correspondant respectivement aux différentes unités de flexion. En particulier, comme on le voit sur les Figures 2 et 3, le chevalet 24 de support de l'unité de flexion supérieure 3 s'étend jusqu'à un niveau un peu inférieur à celui de l'axe de rotation 35 et est muni d'un organe de fixation amovible de l'organe de support 5, placé du côté opérateur, et qui peut être constitué par un vérin 7. Comme on l'a représenté en détail sur la figure 5, le vérin 7 comprend un corps 71 monté sur le chevalet 24 éventuellement par l'intermédiaire de cales d'épaisseurs réglables et une tige 72 qui est munie d'une plaque d'appui 73 et d'un téton 74.The transfer carriage 2 further comprises support pieces 24, 25 in the form of an easel, integral with the horizontal frame 21 and extending vertically on different levels corresponding respectively to the different bending units. In particular, as can be seen in FIGS. 2 and 3, the easel 24 for supporting the upper bending unit 3 extends to a level slightly lower than that of the axis of rotation 35 and is provided a removable fixing member of the support member 5, placed on the operator side, and which may be constituted by a jack 7. As shown in detail in FIG. 5, the jack 7 comprises a body 71 mounted on the easel 24 optionally by means of shims of adjustable thicknesses and a rod 72 which is provided with a support plate 73 and a stud 74.

Lorsque le chariot de transfert 2 est placé en position de prise en charge, le chevalet 24 se trouve aligné avec l'organe de support 5 et, en actionnant le vérin 7, la plaque 73 vient s'appuyer sur le corps de palier 51 qui est muni d'un logement 52 dans lequel s'engage le téton 74.When the transfer carriage 2 is placed in the support position, the bridge 24 is aligned with the support member 5 and, by actuating the jack 7, the plate 73 comes to bear on the bearing body 51 which is provided with a housing 52 in which the stud 74 engages.

L'organe de support 6 placé à l'extrémité opposée du châssis 30 de l'unité de flexion 3 prend appui lui-même, par l'intermédiaire de galets de roulement 63, sur des rails horizontaux 14 s'étendant transversalement entre les deux côtés 10 du bâti. Pour permettre les déplacement verticaux du châssis 30, chaque galet de roulement 63 est monté à l'extrémité libre d'un bras 64 dont l'autre extrémité est articulée, autour d'un axe horizontal 65, sur le flasque 61 de l'organe de support 6. Des ressorts 66 tendus entre chaque bras 64 et une pièce d'attache 67 solidaire du flasque 61 permettent de maintenir le châssis 30 dans la position relevée représentée sur la Figure 2 et pour laquelle les pièces de suspension 36 se trouvent au niveau des têtes 13 des vérins de commande 12. Des vis 68 permettent de régler la position supérieure dans laquelle est rappelé le châssis 30 sous l'action des ressorts 66 de façon que, dans cette position, les mortaises 37 se trouvent exactement au niveau souhaité.The support member 6 placed at the opposite end of the chassis 30 of the flexion unit 3 bears itself, by means of rolling rollers 63, on horizontal rails 14 extending transversely between the two 10 sides of the frame. To allow vertical movement of the chassis 30, each roller 63 is mounted at the free end of an arm 64, the other end of which is articulated, around a horizontal axis 65, on the flange 61 of the member support 6. Springs 66 stretched between each arm 64 and an attachment piece 67 secured to the flange 61 keep the frame 30 in the raised position shown in Figure 2 and for which the suspension pieces 36 are at heads 13 of the control cylinders 12. Screws 68 make it possible to adjust the upper position in which the chassis 30 is returned under the action of the springs 66 so that, in this position, the mortises 37 are located exactly at the desired level.

On voit donc que, lorsque le chariot de transfert 2 est enfilé dans le bâti 10 en position de prise en charge et que l'on a actionné le vérin 7, l'unité de flexion 3 est portée, du côté opérateur, par le chevalet 24 et le vérin 7, et du côté opposé par les galets 63. Si l'on écarte alors latéralement le chariot de transfert 2 au moyen du vérin 23, l'organe de support 5, lié au chevalet 24 par le téton 74, entraîne en déplacement l'unité de flexion 3 dont l'autre extrémité roule sur les rails 14 par l'intermédiaire des galets 63.It can therefore be seen that, when the transfer carriage 2 is threaded into the frame 10 in the supported position and the actuator 7 has been actuated, the flexion unit 3 is carried, on the operator side, by the easel 24 and the jack 7, and on the opposite side by the rollers 63. If the transfer carriage 2 is then moved aside laterally by means of the jack 23, the support member 5, linked to the bridge 24 by the stud 74, drives moving the bending unit 3 of which the other end rolls on the rails 14 via the rollers 63.

Inversement, si l'on ramène le chariot 2 portant l'unité de flexion 3 à l'intérieur du bâti 1, les pièces de suspension 36 s'engagent sur les têtes 13 des vérins 12 qui prennent en charge l'unité de flexion 3. Le châssis de transfert 2 est alors écarté et l'unité de flexion 3 peut être abaissée. Les bras 64, qui peuvent tourner autour de leurs axes 65 avec simple mise en tension des ressorts 66, ne s'opposent pas au déplacement vertical de l'unité 3.Conversely, if the carriage 2 carrying the bending unit 3 is brought back inside the frame 1, the suspension parts 36 engage on the heads 13 of the jacks 12 which support the bending unit 3 The transfer frame 2 is then moved aside and the bending unit 3 can be lowered. The arms 64, which can rotate around their axes 65 with simple tensioning of the springs 66, do not oppose the vertical displacement of the unit 3.

Lorsque l'unité supérieure 3 se trouve dans la position de démontage représentée sur la Figure 2, il est possible de la faire tourner, par exemple manuellement, autour de l'axe horizontal 35 défini par les tourillons 33 et 34, l'ensemble pouvant être équilibré de façon à faciliter le retournement. De préférence, l'unité 3 est bloquée en position retournée par des moyens adéquats qui seront décrits plus loin.When the upper unit 3 is in the disassembly position shown in Figure 2, it is possible to rotate it, for example manually, around the horizontal axis 35 defined by the pins 33 and 34, the assembly being able to be balanced to facilitate turning. Preferably, the unit 3 is locked in the inverted position by suitable means which will be described later.

Dans cette position renversée, le cylindre de travail 4 est tourné vers le haut en reposant sur les cylindres intermédiaires 41 et l'on peut donc intervenir facilement sur les cylindres, par exemple pour les nettoyer, les réparer ou les remplacer.In this inverted position, the working cylinder 4 is turned upwards by resting on the intermediate cylinders 41 and it is therefore easy to intervene on the cylinders, for example to clean, repair or replace them.

Une telle intervention peut être faite, soit sur place, soit en atelier. L'unité 3 peut en effet être transportée dans sa position renversée au moyen de crochets 48 placés au niveau des cylindres, ou bien de barres passant dans des trous 49 ménagés dans le châssis 30. De la sorte, on évite d'avoir à retourner l'unité 3 en atelier, cette opération étant faite plus facilement sur place grâce aux dispositions selon l'invention.Such an intervention can be carried out either on site or in the workshop. The unit 3 can in fact be transported in its inverted position by means of hooks 48 placed at the level of the cylinders, or else of bars passing through holes 49 made in the chassis 30. In this way, it is avoided having to turn over unit 3 in the workshop, this operation being made more easily on site thanks to the arrangements according to the invention.

Bien entendu, on peut aussi transporter l'unité supérieure 3 dans sa position normale, au moyen de crochets 38 fixés sur le châssis 30 du côté opposé aux cylindres.Of course, it is also possible to transport the upper unit 3 in its normal position, by means of hooks 38 fixed to the chassis 30 on the side opposite to the cylinders.

Un moyen de blocage du châssis 30 dans la position renversée est représenté en détail, à titre d'exemple, sur la figure 5.A means for locking the chassis 30 in the position reversed is shown in detail, by way of example, in Figure 5.

Comme on le voit, l'organe de support 5 est muni d'un dispositif de fixation 53 comprenant un doigt 54 qui peut s'engager dans un alésage 55 traversant diamétralement le tourillon 33. L'organe de support 6, placé du côté opposé, est muni d'un dispositif de fixation analogue. Le châssis 30 est ainsi fixé dans la position inversée présentée sur la Figure 3. Dans cette position, chaque cylindre de travail 4 est tourné vers le haut et repose simplement sur les cylindres intermédiaires 31, ces derniers reposant eux-mêmes sur les trois rangées de galets 42.As can be seen, the support member 5 is provided with a fixing device 53 comprising a finger 54 which can engage in a bore 55 diametrically passing through the pin 33. The support member 6, placed on the opposite side , is fitted with a similar fixing device. The chassis 30 is thus fixed in the inverted position shown in FIG. 3. In this position, each working cylinder 4 is turned upwards and simply rests on the intermediate cylinders 31, the latter resting themselves on the three rows of rollers 42.

Les mêmes dispositions peuvent être appliquées à l'unité de décambrage D. Dans ce cas, le cylindre du décambreur doit avoir un plus gros diamètre et peut éventuellement résister seul à la flexion en prenant appui sur ses paliers 32, les galets d'appui 42 étant alors supprimés.The same provisions can be applied to the de-cambering unit D. In this case, the de-camber cylinder must have a larger diameter and can possibly resist bending alone by resting on its bearings 32, the support rollers 42 then being deleted.

L'invention permet donc d'intervenir très facilement sur l'unité de flexion 3 pour entretenir ou remplacer l'un ou l'autre des cylindres 4 et 41 ainsi que les galets d'appui 42, le cas échéant. Ensuite, il suffit de retirer les deux tétons 54 et de faire tourner le châssis 30 pour le ramener dans la position de travail pour laquelle les cylindres de travail sont tournés vers le bas.The invention therefore makes it possible to intervene very easily on the bending unit 3 to maintain or replace one or the other of the cylinders 4 and 41 as well as the support rollers 42, if necessary. Then, it suffices to remove the two pins 54 and to rotate the frame 30 to bring it back to the working position for which the working rolls are turned downwards.

On notera que, si l'ensemble de l'unité de flexion 3 est bien équilibré autour de l'axe 35, les tétons 54 n'ont pas à subir un effort important pour le maintien de l'unité de flexion dans l'une ou l'autre des deux positions. En service, les organes de support 5 et 6 et, par conséquent, les tétons 54, n'ont à subir aucun effort, le châssis 30 étant guidé par des faces planes 39 coulissant le long de faces correspondantes 16 ménagées sur les montants 10 du bâti de la machine.It will be noted that, if the whole of the flexion unit 3 is well balanced around the axis 35, the pins 54 do not have to undergo a significant effort to maintain the flexion unit in one either of the two positions. In service, the support members 5 and 6 and, consequently, the pins 54, do not have to undergo any force, the chassis 30 being guided by plane faces 39 sliding along corresponding faces 16 formed on the uprights 10 of the machine frame.

Les dispositions qui viennent d'être décrites pourront être appliquées à toutes les unités de flexion supérieures, c'est-à-dire, dans le cas de la Figure 1, les unités A1 et A2 ainsi que l'unité D de correction de cintre ou de décambrage. En revanche, les unités inférieures telles que B1 et B2 ainsi que l'unité de correction de tuile C n'ont pas besoin d'être montées pivotantes puisque les cylindres de travail sont dirigés vers le haut. En outre, le rappel de l'unité de flexion intérieure en position de repos peut se faire sous l'action de son propre poids. C'est pourquoi, comme on le voit sur la Figure 2, chaque unité de flexion inférieure 3′ sera montée de façon plus simple, les organes de support étant supprimés.The provisions which have just been described may be applied to all the flexion units higher, that is to say, in the case of FIG. 1, the units A1 and A2 as well as the unit D for bending or bending. On the other hand, the lower units such as B1 and B2 as well as the tile correction unit C do not need to be pivotally mounted since the working rolls are directed upwards. In addition, the internal flexion unit can be returned to the rest position under the action of its own weight. This is why, as can be seen in FIG. 2, each lower bending unit 3 ′ will be mounted in a simpler manner, the support members being eliminated.

De ce fait, la plaque d'extrémité 311 tournée du côté opérateur est munie d'une simple partie en console 350 qui peut reposer sur un vérin 75 monté sur le chevalet 25 et dont la tige est munie, comme précédemment, d'un téton venant s'engager dans un logement correspondant de la console 350 pour que le châssis 30′ soit entraîné par le chariot de transfert 2 pour le démontage.Therefore, the end plate 311 turned on the operator side is provided with a simple console portion 350 which can rest on a jack 75 mounted on the bridge 25 and whose rod is provided, as before, with a stud. coming to engage in a corresponding housing of the console 350 so that the chassis 30 ′ is driven by the transfer carriage 2 for disassembly.

A l'autre extrémité du châssis 30′, la plaque 312 opposée prend appui directement sur des rails 14′ par l'intermédiaire de galets 63′.At the other end of the chassis 30 ′, the opposite plate 312 bears directly on rails 14 ′ by means of rollers 63 ′.

Dans sa partie inférieure, le châssis 30′ peut être muni d'organes d'accrochage 37′ qui viennent s'engager sur les tiges de vérin 12′ de commande du déplacement qui, dans l'exemple représenté, sont des vérins mécaniques.In its lower part, the chassis 30 ′ can be provided with hooking members 37 ′ which engage on the actuator rods 12 ′ for controlling the movement which, in the example shown, are mechanical jacks.

Bien entendu, l'invention ne se limite pas aux détails du mode de réalisation qui vient d'être décrit à titre d'exemple, les dispositions prévues pour le démontage ou le retournement des unités de flexion pouvant être modifiées sans s'écarter du cadre de protection défini par les revendications, notamment pour s'adapter à d'autres modes de réalisation des unités de flexion ou bien à d'autres types de machines de planage.Of course, the invention is not limited to the details of the embodiment which has just been described by way of example, the arrangements provided for dismantling or turning over the bending units can be modified without departing from the scope. protection defined by the claims, in particular to adapt to other embodiments of the bending units or to other types of leveling machines.

En particulier, les dispositions décrites en se référant à une unité de planage supérieure telle que A₁ ou A₂, s'appliquent également à toute autre unité de flexion comme par exemple, sur la Figure 1, l'unité de décambrage D.In particular, the arrangements described with reference to an upper leveling unit such as A₁ or A₂, also apply to any other bending unit such as, for example, in Figure 1, the decambrage unit D.

Par ailleurs, on a décrit une installation classique dans laquelle l'équipage anti-tuile C est au-dessous du produit et l'équipage de décambrage D, au-dessus. Par commodité de construction ou par nécessité de process, cette disposition pourrait, cependant, être inversée, l'équipage anti-tuile étant placé dans la partie supérieure. Les dispositions décrites pour les unités de planage supérieures pourraient alors avantageusement être appliquées à une unité de flexion anti-tuile ainsi placée.Furthermore, a conventional installation has been described in which the anti-tile crew C is below the product and the stripping crew D, above. For convenience of construction or process necessity, this arrangement could, however, be reversed, the anti-tile crew being placed in the upper part. The arrangements described for the upper leveling units could then advantageously be applied to an anti-tile bending unit thus placed.

Claims (11)

Installation de planage sous traction d'une bande métallique comprenant des moyens de commande du déplacement de la bande suivant une direction longitudinale avec maintien sous traction et une machine de planage (1) comprenant à l'intérieur d'un bâti (10), au moins deux unités de flexion (3, 3′) décalées longitudinalement, respectivement une unité supérieure (3) et une unité inférieure (3′) placées respectivement au dessus et en dessous de la bande et des moyens (12, 12′) de commande séparée de déplacement verticaux de chaque unité de flexion (3, 3′) transversalement au plan de défilement de la bande, entre une position de travail et une position de repos écartée de la bande, chaque unité de flexion (3, 3′) comprenant un châssis (30) s'étendant entre deux extrémités (31) placées de part et d'autre de la bande et portant au moins un cylindre de travail (4) monté rotatif autour d'un axe transversal (40), caractérisée par le fait que le châssis (30) d'au moins une unité de flexion supérieure (3) est monté rotatif sur deux tourillons (33, 34) alignés tournant respectivement dans deux organes de support (5, 6) placés respectivement aux deux extrémité du châssis (30) et définissant un axe horizontal de rotation (35) autour duquel l'ensemble de l'unité de flexion supérieure (3) peut tourner entre une position de travail pour laquelle le cylindre de travail (4) est tourné vers le bas et une position renversée d'entretien et de démontage pour laquelle le cylindre de travail (4) est tourné vers le haut.Installation for leveling under tension of a metal strip comprising means for controlling the movement of the strip in a longitudinal direction with holding under tension and a leveling machine (1) comprising inside a frame (10), at at least two bending units (3, 3 ′) offset longitudinally, respectively an upper unit (3) and a lower unit (3 ′) placed respectively above and below the strip and control means (12, 12 ′) separated from the vertical displacement of each bending unit (3, 3 ′) transversely to the running plane of the strip, between a working position and a rest position separated from the strip, each bending unit (3, 3 ′) comprising a frame (30) extending between two ends (31) placed on either side of the strip and carrying at least one working cylinder (4) rotatably mounted around a transverse axis (40), characterized by the makes the chassis (30) at least one upper bending unit (3) is rotatably mounted on two aligned pins (33, 34) rotating respectively in two support members (5, 6) placed respectively at the two ends of the frame (30) and defining an axis horizontal rotation (35) around which the whole of the upper bending unit (3) can rotate between a working position for which the working cylinder (4) is turned down and an inverted maintenance position and disassembly for which the working cylinder (4) is turned upwards. Installation de planage selon la revendication 1, caractérisée en ce que chaque unité de flexion (3, 3′) est montée déplacable transversalement à la direction de défilement entre une position de travail pour laquelle le châssis (30, 30′) de l'unité de flexion est placé à l'intérieur du bâti (10) de la machine (1) et est fixé de façon amovible sur des moyens correspondants (12, 12′) de commande de déplacements verticaux, et une position de démontage et d'entretien pour laquelle le châssis (30, 30′) est écarté latéralement sur un côté du bâti (10) de la machine (1) et prend appui sur les deux organes de support (5, 6) placés à ses deux extrémités opposées, la machine (1) étant associée à des moyens (2) de commande sélective du déplacement transversal de chaque unité de flexion (3, 3′) entre la position de travail et la position de démontage.Leveling installation according to claim 1, characterized in that each bending unit (3, 3 ′) is mounted movable transversely to the direction of travel between a working position for which the frame (30, 30 ′) of the unit of bending is placed inside the frame (10) of the machine (1) and is removably fixed on corresponding means (12, 12 ′) of control of vertical displacements, and a disassembly and maintenance position for which the chassis (30, 30 ′) is spread laterally on one side of the frame (10) of the machine (1) and is supported on the two support members ( 5, 6) placed at its two opposite ends, the machine (1) being associated with means (2) for selective control of the transverse movement of each bending unit (3, 3 ′) between the working position and the position of disassembly. Installation de planage selon la revendication 2, caractérisé par le fait que les moyens (2) de commande du déplacement transversal des unités de flexion comprennent un chariot de transfert (2) mobile transversalement entre une position de prise en charge d'au moins une unité de flexion (3) et la position de démontage et sur lequel est montée au moins une pièce d'appui (24) du châssis (30) d'au moins une unité de flexion (3) comprenant un moyen (7) de fixation amovible de l'organe de support (5) de l'extrémité dudit châssis (30), tournée vers le côté de démontage, le bâti (10) de la machine étant muni d'au moins un rail de roulement (14) s'étendant transversalement sur toute sa largeur et sur lequel prend appui l'organe de support (6) de l'extrémité opposée du châssis (30) et de l'unité de flexion (3) par l'intermédiaire de galets de roulement (63).Leveling installation according to claim 2, characterized in that the means (2) for controlling the transverse movement of the bending units comprise a transfer carriage (2) movable transversely between a position for taking over at least one unit bending (3) and the disassembly position and on which is mounted at least one support piece (24) of the frame (30) of at least one bending unit (3) comprising a means (7) for removable fixing the support member (5) of the end of said chassis (30), facing the dismantling side, the frame (10) of the machine being provided with at least one running rail (14) extending transversely over its entire width and on which the support member (6) bears on the opposite end of the chassis (30) and of the bending unit (3) by means of rollers (63). Installation de planage selon la revendication 3, caractérisée par le fait que les galets de roulement (63) placés à l'extrémité (31) du châssis (30) de l'unité de flexion supérieure (3) oppposée au côté de démontage sont reliés à l'organe de support (6) par une pièce de liaison (64) mobile entre une position relevée et une position abaissée à un niveau réglable pour lesquelles l'unité de flexion supérieure (3) se trouve respectivement en position de repos et en position de travail.Leveling installation according to claim 3, characterized in that the rollers (63) placed at the end (31) of the frame (30) of the upper bending unit (3) opposite the dismantling side are connected to the support member (6) by a connecting piece (64) movable between a raised position and a position lowered to an adjustable level for which the upper bending unit (3) is respectively in the rest position and in working position. Machine de planage selon la revendication 3, caractérisée par le fait que l'organe de support (5) du côté démontage du châssis (30) de chaque unité de flexion (3) comprend une pièce annulaire (51) formant un corps de palier dans lequel est monté rotatif un tourillon (33) solidaire de l'extrémité (31) du châssis (30) et centré sur l'axe horizontal de rotation (35) et que le moyen (7) de fixation amovible dudit organe de support (5) comprend un vérin (71) monté sur la pièce d'appui (24) correspondante du chariot de tansfert (2) et dont la tige (72) est munie d'un téton (74) susceptible de s'engager dans un logement correspondant (52) du corps de palier (51), ce dernier pouvant reposer sur une plaque d'appui (73) associée audit téton (74).Leveling machine according to claim 3, characterized in that the support member (5) on the dismantling side of the chassis (30) of each bending unit (3) comprises an annular part (51) forming a bearing body in which is rotatably mounted a pin (33) integral with the end (31) of the frame (30) and centered on the horizontal axis of rotation (35) and that the means (7) for removable fixing of said support member (5) comprises a jack (71) mounted on the corresponding support piece (24) of the transfer trolley (2) and the rod (72) of which is provided with a stud (74) capable of engaging in a corresponding housing (52) of the bearing body (51), the latter being able to rest on a support plate (73) associated with said stud (74). Installation de planage selon la revendication 3, caractérisée par le fait que l'organe de support (6) du châssis (30) de l'unité de flexion supérieure (3) placé du côté opposé au côté de démontage, comprend un flasque (61) portant un corps de palier (67) dans lequel est monté rotatif un tourillon (34) solidaire de l'extrémité (31) du châssis (30) et centré sur l'axe horizontal de rotation (35), ledit flasque (61) prenant appui sur les deux rails de roulement (14) corresppondants par l'intermédiaire de deux galets (63).Leveling installation according to claim 3, characterized in that the support member (6) of the chassis (30) of the upper bending unit (3) placed on the side opposite to the dismantling side, comprises a flange (61 ) carrying a bearing body (67) in which is rotatably mounted a pin (34) integral with the end (31) of the frame (30) and centered on the horizontal axis of rotation (35), said flange (61) bearing on the two corresponding running rails (14) by means of two rollers (63). Installation de planage selon la revendication 6, caractérisé par le fait que les deux galets (63) d'appui du flasque de support (61) sont montés chacun à une extrémité libre d'un bras (64) dont l'extrémité opposée est montée pivotante autour d'un axe horizontal (65) sur le flasque de support (61) et dont la longueur est supérieure à la différence de hauteur entre la position de repos et la position extrême de travail de l'unité de flexion (3), les deux bras (64) étant associés à un moyen élastique (66) de rappel du châssis (30) dans sa position de repos.Leveling installation according to claim 6, characterized in that the two support rollers (63) of the support flange (61) are each mounted at a free end of an arm (64) whose opposite end is mounted pivoting about a horizontal axis (65) on the support flange (61) and whose length is greater than the difference in height between the rest position and the extreme working position of the bending unit (3), the two arms (64) being associated with an elastic means (66) for returning the chassis (30) to its rest position. Installation de planage selon l'une des revendications précédentes, caractérisée par le fait que au moins l'un des deux organes de support (5, 6) est muni d'un organe (54) de verrouillage du châssis (30) de l'unité de flexion (3) au moins dans la position renversée.Leveling installation according to one of the preceding claims, characterized in that at least one of the two support members (5, 6) is provided with a member (54) for locking the chassis (30) of the bending unit (3) at least in the inverted position. Installation de planage selon la revendication 8, caractérisée par le fait que l'organe de verrouillage du châssis (30) comprend un téton (54) monté coulissant sur l'organe de support (5, 6) transversalement au tourillon (33),(34) et s'engageant de façon amovible dans un alésage (55) ménagé dans ledit tourillon (33), (34).Leveling installation according to claim 8, characterized in that the chassis locking member (30) comprises a stud (54) slidably mounted on the support member (5, 6) transversely to the pin (33), ( 34) and engaging in a removable manner in a bore (55) formed in said pin (33), (34). Installation de planage selon la revendication 9, caractérisée par le fait que l'alésage (55) dans lequel s'engage le téton de verrouillage (54) traverse diamètralement le tourillon (33) (34) de façon à ménager deux positions de verrouillage du châssis (30), respectivement en position de travail et en position renversée d'entretien.Leveling installation according to Claim 9, characterized in that the bore (55) in which the locking pin (54) engages diametrically passes through the pin (33) (34) so as to provide two locking positions for the chassis (30), respectively in the working position and in the reverse maintenance position. Installation de planage selon l'une des revendications précédentes, caractérisée par le fait que le châssis (30) de l'unité de flexion supérieure (3) est muni de moyens d'accrochage (48, 49) pour le transport de l'unité (3) en position renversée.Leveling installation according to one of the preceding claims, characterized in that the chassis (30) of the upper bending unit (3) is provided with hooking means (48, 49) for transporting the unit (3) in the inverted position.
EP91400615A 1990-03-09 1991-03-06 Installation for straightening Expired - Lifetime EP0446130B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9003058A FR2659254B1 (en) 1990-03-09 1990-03-09 SHEET FLOORING INSTALLATION.
FR9003058 1990-03-09

Publications (2)

Publication Number Publication Date
EP0446130A1 true EP0446130A1 (en) 1991-09-11
EP0446130B1 EP0446130B1 (en) 1994-05-18

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EP91400615A Expired - Lifetime EP0446130B1 (en) 1990-03-09 1991-03-06 Installation for straightening

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US (1) US5127249A (en)
EP (1) EP0446130B1 (en)
JP (1) JP3105559B2 (en)
AT (1) ATE105746T1 (en)
DE (1) DE69101995T2 (en)
FR (1) FR2659254B1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4238628A1 (en) * 1992-11-16 1994-07-28 Agfa Gevaert Ag Photographic material with poly:thiophene antistatic coat
WO1995006529A1 (en) * 1992-06-10 1995-03-09 The Monarch Machine Tool Company Tension leveler roll cleaning system
EP0767014B1 (en) * 1995-10-06 2000-06-21 Vai Clecim Straightening machine with parallel cylinders
EP1162008A2 (en) * 2000-06-07 2001-12-12 SMS Demag AG Apparatus for straightening metallic strips
EP1918036A1 (en) 2006-11-03 2008-05-07 Siemens VAI Metals Technologies SAS Device for straightening a metal strip
FR2912073A1 (en) * 2007-02-02 2008-08-08 Siemens Vai Metals Tech Sas METHOD AND APPARATUS FOR DISASSEMBLING WORK EQUIPMENT IN MULTI-ROLL PLANER
WO2008145355A1 (en) * 2007-05-30 2008-12-04 Arku Maschinenbau Gmbh Straightening machine having a straightening roller rapid-change system, and a method for rapidly changing straightening rollers of a straightening machine
WO2011032890A1 (en) * 2009-09-18 2011-03-24 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Method and device for continuously stretch-bend-leveling metal strips

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6769279B1 (en) * 2002-10-16 2004-08-03 Machine Concepts, Inc. Multiroll precision leveler with automatic shape control
US8363356B2 (en) * 2008-07-28 2013-01-29 Hgst, Netherlands B.V. High bandwidth and mechanical strength between a disk drive flexible circuit and a read write head suspension
KR101545042B1 (en) † 2009-03-20 2015-08-17 지멘스 바이 메탈스 테크놀로지 에스에이에스 Device for turning over a flattening element, and flattening element engaging with said device
CN102513356B (en) * 2011-12-10 2015-11-18 襄阳博亚精工机器有限公司 The thermal straightening machine roller box that backing roll can directly be installed separately
WO2013105941A1 (en) 2012-01-11 2013-07-18 Intel Corporation File vault and cloud based document notary service

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2134405A1 (en) * 1971-07-09 1973-01-18 Bwg Bergwerk Walzwerk METHOD AND DEVICE FOR DEFORMING SHEET METAL STRIPS IN STRIP LINES
US4745788A (en) * 1985-10-07 1988-05-24 Mitsubishi Jukogyo Kabushiki Kaisha Roll rearranging apparatus
EP0298852A2 (en) * 1987-07-08 1989-01-11 Clecim Method and apparatus for levelling a metal band

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592948A (en) * 1947-11-26 1952-04-15 Birdsboro Steel Foundry & Mach Roller leveler
US3453852A (en) * 1967-06-01 1969-07-08 Manco Mfg Co Straightening apparatus for tubes,rods and the like
JPH06102223B2 (en) * 1986-12-12 1994-12-14 石川島播磨重工業株式会社 Tension leveler
JPS6444214A (en) * 1987-08-13 1989-02-16 Nippon Steel Corp Roll recombining device of shape straightening machine of metal strip
US4974435A (en) * 1989-10-20 1990-12-04 Jacky Vandenbroucke Roll formed with quick automated tool changer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2134405A1 (en) * 1971-07-09 1973-01-18 Bwg Bergwerk Walzwerk METHOD AND DEVICE FOR DEFORMING SHEET METAL STRIPS IN STRIP LINES
US4745788A (en) * 1985-10-07 1988-05-24 Mitsubishi Jukogyo Kabushiki Kaisha Roll rearranging apparatus
EP0298852A2 (en) * 1987-07-08 1989-01-11 Clecim Method and apparatus for levelling a metal band

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995006529A1 (en) * 1992-06-10 1995-03-09 The Monarch Machine Tool Company Tension leveler roll cleaning system
DE4238628A1 (en) * 1992-11-16 1994-07-28 Agfa Gevaert Ag Photographic material with poly:thiophene antistatic coat
EP0767014B1 (en) * 1995-10-06 2000-06-21 Vai Clecim Straightening machine with parallel cylinders
EP1162008A2 (en) * 2000-06-07 2001-12-12 SMS Demag AG Apparatus for straightening metallic strips
EP1162008A3 (en) * 2000-06-07 2003-05-02 SMS Demag AG Apparatus for straightening metallic strips
EP1918036A1 (en) 2006-11-03 2008-05-07 Siemens VAI Metals Technologies SAS Device for straightening a metal strip
FR2908060A1 (en) * 2006-11-03 2008-05-09 Vai Clecim Soc Par Actions Sim MACHINE FOR PLANTING A METAL STRIP
FR2912073A1 (en) * 2007-02-02 2008-08-08 Siemens Vai Metals Tech Sas METHOD AND APPARATUS FOR DISASSEMBLING WORK EQUIPMENT IN MULTI-ROLL PLANER
WO2008099126A2 (en) * 2007-02-02 2008-08-21 Siemens Vai Metals Technologies Sas Method and device for dismantling the straightening assemblies of a multiroll straightener
WO2008099126A3 (en) * 2007-02-02 2008-11-06 Siemens Vai Metals Tech Sas Method and device for dismantling the straightening assemblies of a multiroll straightener
WO2008145355A1 (en) * 2007-05-30 2008-12-04 Arku Maschinenbau Gmbh Straightening machine having a straightening roller rapid-change system, and a method for rapidly changing straightening rollers of a straightening machine
WO2011032890A1 (en) * 2009-09-18 2011-03-24 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Method and device for continuously stretch-bend-leveling metal strips

Also Published As

Publication number Publication date
EP0446130B1 (en) 1994-05-18
DE69101995T2 (en) 1994-12-22
JP3105559B2 (en) 2000-11-06
FR2659254B1 (en) 1992-07-10
FR2659254A1 (en) 1991-09-13
DE69101995D1 (en) 1994-06-23
JPH04224018A (en) 1992-08-13
ATE105746T1 (en) 1994-06-15
US5127249A (en) 1992-07-07

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