EP0640412A1 - Device for cleaning a roll - Google Patents

Device for cleaning a roll Download PDF

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Publication number
EP0640412A1
EP0640412A1 EP94401572A EP94401572A EP0640412A1 EP 0640412 A1 EP0640412 A1 EP 0640412A1 EP 94401572 A EP94401572 A EP 94401572A EP 94401572 A EP94401572 A EP 94401572A EP 0640412 A1 EP0640412 A1 EP 0640412A1
Authority
EP
European Patent Office
Prior art keywords
roller
axis
cylinder
rotation
fixed
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
EP94401572A
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German (de)
French (fr)
Other versions
EP0640412B1 (en
Inventor
Bernard Dumas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KVAERNER CLECIM
Original Assignee
Clecim SAS
Kvaerner Clecim SA
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Publication of EP0640412A1 publication Critical patent/EP0640412A1/en
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Publication of EP0640412B1 publication Critical patent/EP0640412B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/16—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged
    • B24B5/167—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged for rolls with large curvature radius, e.g. mill rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/363—Single-purpose machines or devices for grinding surfaces of revolution in situ

Definitions

  • the invention relates to a device for cleaning or polishing a cylinder and applies, more particularly, to the cleaning of the rolls of a rolling mill.
  • This cleaning is carried out by means of a tool applied to the active surface of the cylinder to be cleaned and which can advantageously consist of a rotary brush in the form of a roller mounted to rotate around an axis parallel to the generatrices of the cylinder and associated with a drive member capable of applying a torque to at least one of its ends.
  • a rolling mill generally comprises two working rolls placed on either side of a passage plane of the product to be rolled and bearing, respectively, on the opposite side, on at least two supporting rolls between which is applied a clamping force.
  • the cleaning device To clean the working rolls which have a fairly small diameter, the cleaning device must be passed through a fairly tight space limited by the columns of the cage, the product being rolled and the support roll (s). This is why the cleaning member is generally mounted on a movable support, in said space, between a position for applying the roller to the cylinder and a spaced-apart position allowing the cylinders to be released, for example for maintenance operations. or when starting the rolling mill.
  • the roller is rotatably mounted on a support member comprising two parallel arms carrying, at their free ends, bearings for centering the roller, and mounted on a frame which can slide along a plane parallel to the axis of the roller between a position for applying the roller and a separated position.
  • the roller support member can advantageously pivot around a fixed axis to come to be placed in a rest position away from the rolls of the rolling mill (DE-A-1.959.806).
  • roller support member is mounted on a set of articulated arms forming a deformable parallelogram (DE-A-1,943,847).
  • the means for driving the roller in rotation must be provided to follow the movements of the support member.
  • the roller can be associated with at least one drive wheel fixed on one of its ends and connected by a chain to a rotation control wheel mounted on the support and moving with the latter (DE- A-1.959.806).
  • the engine torque must be transmitted, for example, via an extension provided with a universal joint, so as to follow the movements of the support (DE-A-1.959.806).
  • the rotation control member can also be fixed, but the kinematic chain which connects it to the shaft of the roller must have a variable length depending on the position of the latter.
  • One then uses a Galle chain associated with means making it possible to maintain its tension (DE-A-1,943,847).
  • the roller in order to ensure correct cleaning and to avoid the formation of scratches on the cylinder, the roller must also be driven by an alternating cutting movement, parallel to the axis of the cylinder, so as to distribute the l effect of the brush on the entire surface of the cylinder (FR-4-1.463.503).
  • the invention provides an optimal solution to all of these problems thanks to a cleaning device which is more efficient, simpler and less bulky than the devices known up to now.
  • the external ends of the two support arms are articulated, about a fixed axis y'y parallel to the axis of the cylinder, respectively, on two aligned bearings each carried by a fixed support and are associated with means for controlling the simultaneous pivoting of said arms for applying the cleaning roller to the cylinder, and the member for controlling the rotation of the driven end of the roller is carried by the bearing of the support arm for the latter and is centered on said pivot axis y'y, the entire kinematic chain of transmission of the engine torque being mounted on said support arm so as to pivot therewith around said axis of the rotation control member .
  • the support member for the roller consists simply of two arms of the same length rotating around two fixed spaced bearings defining a fixed pivot axis on which the rotation control member is centered.
  • the two arms can be independent of each other and may take slightly different orientations, the roller thus remaining applied to the cylinder, following any misalignments thereof.
  • the drive member and the rotation control member are constituted, respectively, by two toothed wheels kinematically connected and rotatably mounted, respectively, around the axis of rotation of the roller and the axis of pivoting of the support arms.
  • the kinematic chain comprises at least one pinion mounted idly on the support arm, in the central part of the latter and simultaneously meshing, on both sides, with the two toothed control wheels of rotation and drive of the roller.
  • the respective diameters of the two toothed wheels can be determined as a function of the distance between the pivot axis of the support arms and the axis of rotation of the roller so that said wheels mesh directly with each other.
  • the rotation control member is linked to the corresponding end of the roller by an axially sliding link capable of transmitting the torque to the roller with the possibility of axial displacement of said roller.
  • this sliding connection comprises a shaft centered on the axis of the roller and linked in rotation with the latter, at one end, by means of an articulated engagement means such as a toothed ball joint, said shaft being provided, on its periphery, with teeth which mesh with corresponding grooves formed on the internal face of a sheath provided, on its periphery, with a toothed part constituting the rotation control member.
  • an articulated engagement means such as a toothed ball joint
  • the sliding shaft is provided with a spherical part housed in a hollow spherical bearing formed in a clamp fixed on the end of the roller, said spherical part being provided with dogs. 'engaging in corresponding grooves of the plate for securing the two rotating parts with a possibility of universal articulation allowing misalignment of the axes of rotation of the control member and the roller.
  • the end of the roller opposite the driven end is carried, with the possibility of articulation, by a rod mounted to slide axially and without the possibility of rotation, on the end of the second support arm, said rod being provided , at its end facing the roller, of a swiveling bearing having an internal cage mounted on the rod and an external cage fixed on the corresponding end of the roller.
  • roller is associated with cutting means which, preferably, bear directly on one end of the roller, in the axis thereof, to determine an alternating movement parallel to its axis.
  • the end of the sliding rod facing the side opposite the roller forms a piston mounted to slide axially in a bushing forming the body of a jack fixed on the sheath and supplied with oil to control the axial movement of the roller by acting on the piston.
  • the invention makes it possible to considerably reduce the size of the cleaning and its rotation drive means and to simplify the disassembly of the roller by giving direct access to the cylinder without disassembling the drive members.
  • roller is used for cleaning an active rolling mill cylinder
  • the cleaning assembly according to the invention better resists deformation forces due to misalignments of the roller and makes it possible to reduce the wear of the bearings while allowing fine adjustment of the cutting movement.
  • the cleaning device can also be associated with means for adjusting the pressure exerted by the roller on the cylinder comprising, at each end of the roller, a cam rotatably mounted on the corresponding end of the support arm around the 'axis of the shaft, respectively of the rod, and having an eccentric profile relative to said axis, said cam bearing on a fixed stop which, in the case of a rolling mill, can be mounted on a corresponding part of a cylinder chock.
  • the support arm of the driven end of the roller has the form of a hollow box inside which are placed the drive member, the rotation control member and the kinematic chain.
  • the swivel connection between the rotation control shaft and the corresponding end of the roller may advantageously comprise a part spherical formed at the end of the shaft and housed in a hollow spherical bearing formed in a crapaudine fixed on the end of the roller, the spherical part being provided with dogs engaging in corresponding grooves of the crapaudine for the fixing of the two rotating parts with possibility of articulation.
  • the invention also covers a rolling mill comprising a frame in which are housed at least two rolling mill rolls, at least one of these rolls being provided with a cleaning device comprising the preceding characteristics.
  • Figure 1 shows, by way of example, a Quarto type rolling mill in section through the vertical plane passing through the axes of the rolls.
  • FIG. 2 is a diagram showing the essential elements of a brushing device according to the invention, in section along line II / II of FIG. 3.
  • Figure 3 is a side view of a chock carrying the brushing device according to the invention.
  • Figure 4 is a partial view along IV / IV of Figure 3.
  • Figure 5 is a detail view of the kinematic chain of rotation control.
  • Figure 6 is a detail view of the cutting device.
  • Figure 1 shows, in a vertical section, very schematically, the assembly of a rolling mill provided with cleaning devices, in particular, working rolls.
  • the rolling mill shown is, for example, of "Quarto" type, and therefore comprises, between the two uprights of a cage 1, two support cylinders 2, 2 ', and two working cylinders 4 carried, at their ends, by chocks, respectively 30, 3, which are mounted vertically sliding along guide parts provided on the uprights of the cage 1.
  • each working cylinder 4, 4 ′ is associated with a cleaning device consisting of a brush 41 in the form of a cylindrical roller, driven in rotation about its axis and applied to the corresponding cylinder.
  • a cleaning device consisting of a brush 41 in the form of a cylindrical roller, driven in rotation about its axis and applied to the corresponding cylinder.
  • two cleaning rollers placed symmetrically on either side of the cylinder clamping plane, as shown in FIG. 3.
  • FIGS. 2 and 3 represent the lower working cylinder.
  • each cleaning roller 41 is articulated on the ends of two support arms pivotally mounted, at their other ends, on fixed bearings which are advantageously carried by the chocks of the cylinder to be cleaned, in the case of a rolling mill.
  • Figure 2 shows, schematically, a cleaning device, in longitudinal section through a plane passing through the axis x'x of the brush and the axis y'y of pivoting of the support arms.
  • the rotary brush 41 is shown in abutment against the cylinder 4 to be cleaned and rotates around an axis 13 substantially parallel to the axis of rotation of the cylinder 4.
  • the brush support member 41 consists only of two substantially parallel arms 15, 16 which each extend between an internal end 15a, 16a, facing the cylinder 4, and an external end 15b, 16b, facing outside.
  • the rotary brush 41 is carried, at its ends, by two shafts 20, 23, rotating in bearings 21, 22, housed in the internal ends 15a, 16a, of the two support arms 15 and 16, the latter being pivotally mounted on two bearings 7, 7 ', which define the same pivot axis y'y and are carried by fixed supports constituted, respectively, in the case of a rolling mill, by the two chocks 3, 3', of the cylinder 4.
  • the brush 41 is driven in rotation at one of its ends 19 by a rotary drive member 25, centered on the corresponding shaft 20 and integral in rotation with the latter.
  • the torque is applied to a rotary control member 27 centered on the pivot axis y'y of the corresponding support arm 15 and is transmitted to the drive member 25 by a kinematic chain mounted on the arm 15 of way to rotate with this one.
  • the support arm 15 advantageously consists of a hollow box pivotally mounted, around the axis y'y, on the chock 3, by means of a hollow shaft 29 through which passes a control shaft 17 on which is applied the engine torque.
  • the kinematic chain which is mounted inside the box-shaped arm 15, is constituted, in the example shown, by two toothed wheels constituting respectively the control member 27 centered on the pivot axis y'y and the drive member 25 centered on the shaft 20 of the roller 41, and which mesh with an intermediate pinion 26 mounted idly on the box 15 between said toothed wheels 27, 25.
  • control torque is applied directly to the control shaft 17 by a motor 28 fixed on the support 3.
  • the rotation of the two arms 15, 16 can advantageously be controlled by two jacks 45 bearing on the supports 3, 3 ', and supplied in synchronism.
  • the drive shaft 20 On the side of the driven end 19 of the roller 41, that is to say on the left of Figure 2, the drive shaft 20 is provided with grooves which engage in corresponding internal grooves of a sleeve 21 which is provided with a toothed part constituting the drive wheel 25.
  • the shaft 20 can thus be rotated in an axially sliding manner.
  • the sleeve 21 is rotatably mounted, by means of two spaced apart bearings 40, 40 ′, in a tubular part 31 fixed on the internal end of the arm 15.
  • FIG. 5 shows, in detail, an exemplary embodiment.
  • the opposite end 19 'of the brush 41 is rotatably mounted on the end of a shaft 23 which can slide axially on the internal end of the second support arm 16.
  • the shaft 23 does not control the rotation of the roller 41, it can consist of a simple rod fixed in rotation and carrying the end 19 'of the roller 41 by means of a bearing with swiveling bearings 22
  • the rod 23 is grooved and slides axially in a sheath 24 internally grooved and fixed on the internal end 16a of the arm 16.
  • the shaft 20 and the rod 23 can slide axially with the roller 41, the drive shaft 20 remaining secured in rotation with the control member 27.
  • the latter is provided, at its end facing the roller, with a ball-shaped head 42 spherical housed in a piece forming a claw 43 which can be removably attached to the end 19 of the roller 41.
  • the ball 42 is provided with dogs 44 which engage in corresponding grooves of the clamp 43 of so as to allow the transmission of the torque without disturbing the joint.
  • the clamp 43 In the service position, the clamp 43 is fixed to the end 19 of the roller 41 and the shaft 20 can slide freely in the sleeve 21, following the cutting movement applied to the roller 41, while driving the latter.
  • the rod 23, which is connected to the roller 41 by a swiveling bearing 22, can slide without turning, parallel to a fixed direction, in the sheath 24 fixed on the arm 16 secured to the chock 3 '.
  • the cutting device 5 associated with the roller 41 can thus be considerably simplified, as indicated in FIG. 2 and, in more detail, in FIG. 6.
  • the rod 23 is provided, at its end opposite the roller 41, with a central rod 51 carrying a piston 52 which can slide inside a bushing 53 fixed by a base 54 on the end of the sheath 24.
  • the assembly thus constitutes a double-acting cylinder fed by conduits 55 drilled inside the sheath 24.
  • the engine torque can be applied to the shaft 17 in any suitable manner.
  • a motor 28 specific to the brushing device 11, which can be mounted on the chock 3 of the cylinder or else directly by the arm 15.
  • the shaft 17 can be fixed on a pinion connected to the cylinder 4 by a kinematic chain such as a gear or a belt.
  • the rotation control device is designed to drive the brush in one direction or the other depending on the constraints of the rolling.
  • each working cylinder 4, 4 ' can be associated with two rotary brushes 41 (41'), placed on either side of the clamping plane and applied to the cylinder 4 by jacks 45 articulated on the chock 3 and bearing on the free end of the arm of the support 15.
  • each rotary brush 41 can be associated with a support device making it possible to maintain the position of the roller relative to the cylinder 4 and, moreover, to adjust the pressure exerted.
  • Such a device shown in Figures 3 and 4, comprises, at each end of the roller 41, a cam 32, 32 ', bearing on a stop 33.
  • the cam 32 is fixed to a sleeve 32a rotating on the end 31 of the arm 15 and has a rounded profile, eccentric with respect to the axis 20a of the shaft 20 for controlling rotation.
  • the cam 32 ' has the same eccentric profile and rotates around the axis 23a of the rod 23 for cutting control.
  • each stop 33 advantageously consists of a sleeve rotating around an axis 33a which crosses the lateral face of the chock and whose profile is eccentric with respect to its axis of rotation.
  • This socket can be provided, at its opposite end, with an indexing member, not shown, which makes it possible to rotate the stop 33, and which can advantageously be provided with an appropriately calibrated graduation.
  • the cams 32, 32 ′ constitute a rough adjustment means which is positioned in the workshop so as to adjust the mean distance, at each end, between the axis of the brush and the axis of the cylinder and, consequently, the brush penetration.
  • the angular positions of the two cams 32, 32 ′ can then be varied, if necessary, for example to adjust the parallelism of the roller 41 with the cylinder 4.
  • the eccentric stops 33 on which the cams 32, 32 ′ rest thus constitute a means fine adjustment on which one can intervene during rolling, in particular to adjust the friction effect of the brush as a function of the surface condition of the cylinder 4.
  • the two support arms 15 and 16 can take slightly different orientations in order to properly apply against the cylinder 4 the roller 41 which can slide axially without interference with the control means of rotation, the engine torque being transmitted to the roller passing through the pivot axis 10 of the arms.
  • the use of telescopic cardan extensions is completely avoided and disassembly is facilitated.
  • the idler gear 26 could be eliminated, the diameters of the toothed wheels 25 and 27 being determined so that they mesh directly on each other.
  • the idler gear 26 could also be replaced by a Galle type transmission chain meshing with the toothed wheels 25 and 27.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Cleaning In General (AREA)
  • Coating Apparatus (AREA)
  • Spray Control Apparatus (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Cleaning Or Drying Semiconductors (AREA)

Abstract

The subject of the invention is a device for cleaning or polishing a roll (4), mounted so as to rotate about an axis, comprising a cleaning roller (41) mounted so as to rotate on a support member which includes two parallel arms (15, 16) which extend respectively between an internal end (15a, 16a) and an external end (15b, 16b) and which can move between a position in which the roller (41) is applied against the roll (4) and a retracted position, and means for controlling the rotation of the roller (41) about its axis x'x. According to the invention, the external ends (15b, 16b) of the two support arms (15, 16) are articulated about an axis y'y parallel to the axis of the roll (4) respectively on two aligned fixed bearings (7, 7') and can pivot simultaneously about the said axis y'y, for applying the roller (41) against the roll (4), and the rotation of the roller is controlled by a rotary member (27) centred on the said pivoting axis y'y and is transmitted to a driven end (19) of the roller (41) via a kinematic chain (26) mounted on the corresponding support arm (15) so as to pivot with the latter about the axis y'y of the control member (27). <IMAGE>

Description

L'invention concerne un dispositif de nettoyage ou polissage d'un cylindre et s'applique, plus spécialement, au nettoyage des cylindres d'un laminoir.The invention relates to a device for cleaning or polishing a cylinder and applies, more particularly, to the cleaning of the rolls of a rolling mill.

Au cours du laminage d'une bande de métal, il est nécessaire de nettoyer la surface active des cylindres qui sont en contact direct ou indirect avec le produit laminé afin d'en garantir la qualité d'état de surface. C'est le cas, en particulier, pour le laminage à chaud de l'aluminium.During the rolling of a metal strip, it is necessary to clean the active surface of the rolls which are in direct or indirect contact with the rolled product in order to guarantee the quality of the surface finish. This is the case, in particular, for the hot rolling of aluminum.

Ce nettoyage est effectué au moyen d'un outil appliqué sur la surface active du cylindre à nettoyer et qui peut avantageusement être constitué d'une brosse rotative en forme de rouleau monté rotatif autour d'un axe parallèle aux génératrices du cylindre et associé à un organe d'entraînement susceptible d'appliquer un couple de rotation sur au moins l'une de ses extrémités.This cleaning is carried out by means of a tool applied to the active surface of the cylinder to be cleaned and which can advantageously consist of a rotary brush in the form of a roller mounted to rotate around an axis parallel to the generatrices of the cylinder and associated with a drive member capable of applying a torque to at least one of its ends.

Un laminoir comprend, généralement, deux cylindres de travail placés de part et d'autre d'un plan de passage du produit à laminer et prenant appui, respectivement, du côté opposé, sur au moins deux cylindres d'appui entre lesquels est appliqué un effort de serrage. Pour nettoyer les cylindres de travail qui ont un assez faible diamètre, il faut faire passer le dispositif de nettoyage dans un espace assez resserré limité par les colonnes de la cage, le produit en cours de laminage et le ou les cylindres d'appui. C'est pourquoi l'organe de nettoyage est généralement monté sur un support déplaçable, dans ledit espace, entre une position d'application du rouleau sur le cylindre et une position écartée permettant de dégager les cylindres, par exemple pour des opérations d'entretien ou lors de la mise en route du laminoir.A rolling mill generally comprises two working rolls placed on either side of a passage plane of the product to be rolled and bearing, respectively, on the opposite side, on at least two supporting rolls between which is applied a clamping force. To clean the working rolls which have a fairly small diameter, the cleaning device must be passed through a fairly tight space limited by the columns of the cage, the product being rolled and the support roll (s). This is why the cleaning member is generally mounted on a movable support, in said space, between a position for applying the roller to the cylinder and a spaced-apart position allowing the cylinders to be released, for example for maintenance operations. or when starting the rolling mill.

Divers dispositifs de nettoyage ont été proposés à cet effet.Various cleaning devices have been proposed for this purpose.

Souvent, le rouleau est monté rotatif sur un organe de support comprenant deux bras parallèles portant, à leurs extrémités libres, des paliers de centrage du rouleau, et montés sur un châssis qui peut coulisser suivant un plan parallèle à l'axe du rouleau entre une position d'application du rouleau et une position écartée. En outre, pour mieux dégager le cylindre, l'organe de support du rouleau peut avantageusement pivoter autour d'un axe fixe pour venir se placer dans une position de repos éloignée des cylindres du laminoir (DE-A-1.959.806).Often, the roller is rotatably mounted on a support member comprising two parallel arms carrying, at their free ends, bearings for centering the roller, and mounted on a frame which can slide along a plane parallel to the axis of the roller between a position for applying the roller and a separated position. In addition, to better clear the cylinder, the roller support member can advantageously pivot around a fixed axis to come to be placed in a rest position away from the rolls of the rolling mill (DE-A-1.959.806).

Dans une autre disposition connue, l'organe de support du rouleau est monté sur un ensemble de bras articulés formant un parallélogramme déformable (DE-A-1.943.847).In another known arrangement, the roller support member is mounted on a set of articulated arms forming a deformable parallelogram (DE-A-1,943,847).

Les moyens d'entraînement en rotation du rouleau doivent être prévus pour suivre les mouvements de l'organe de support. Par exemple, le rouleau peut être associé à au moins une roue d'entraînement calée sur l'une de ses extrémités et reliée par une chaîne à une roue de commande de rotation montée sur le support et se déplaçant avec celui-ci (DE-A-1.959.806). Dans ce cas, le couple moteur doit être transmis, par exemple, par l'intermédiaire d'une allonge munie d'une articulation universelle, de façon à suivre les mouvements du support (DE-A-1.959.806). L'organe de commande de rotation peut aussi être fixe mais la chaîne cinématique qui le relie à l'arbre du rouleau doit avoir une longueur variable en fonction de la position de celui-ci. On utilise alors une chaîne Galle associée à des moyens permettant de maintenir sa tension (DE-A-1.943.847).The means for driving the roller in rotation must be provided to follow the movements of the support member. For example, the roller can be associated with at least one drive wheel fixed on one of its ends and connected by a chain to a rotation control wheel mounted on the support and moving with the latter (DE- A-1.959.806). In this case, the engine torque must be transmitted, for example, via an extension provided with a universal joint, so as to follow the movements of the support (DE-A-1.959.806). The rotation control member can also be fixed, but the kinematic chain which connects it to the shaft of the roller must have a variable length depending on the position of the latter. One then uses a Galle chain associated with means making it possible to maintain its tension (DE-A-1,943,847).

Par ailleurs, afin d'assurer un nettoyage correct et d'éviter la formation de rayures sur le cylindre, le rouleau doit aussi être animé d'un mouvement alternatif de trancanage, parallèle à l'axe du cylindre, de façon à bien répartir l'effet de la brosse sur toute la surface du cylindre (FR-4-1.463.503).Furthermore, in order to ensure correct cleaning and to avoid the formation of scratches on the cylinder, the roller must also be driven by an alternating cutting movement, parallel to the axis of the cylinder, so as to distribute the l effect of the brush on the entire surface of the cylinder (FR-4-1.463.503).

En raison de tous les problèmes à résoudre, les dispositfs connus jusqu'à présent étaient assez complexes et encombrants.Because of all the problems to be solved, the devices known so far were quite complex and cumbersome.

Or, il est souvent nécessaire de démonter la brosse ou le cylindre et la complexité mécanique des ensembles de nettoyage implique de nombreuses opérations de démontage assez longues et coûteuses.However, it is often necessary to dismantle the brush or the cylinder and the mechanical complexity of the cleaning assemblies implies numerous dismantling operations which are quite long and costly.

De plus, l'évolution des techniques du laminage conduit à associer au laminoir tout un ensemble de dispositifs annexes, par exemple pour compenser les déformations et régler la répartition des contraintes appliquées sur le produit, et qui réduisent l'espace disponible pour placer le dispositif de nettoyage.In addition, the evolution of rolling techniques has led to associating with the rolling mill a whole set of ancillary devices, for example to compensate for deformations and adjust the distribution of stresses applied to the product, and which reduce the space available for placing the device. of cleaning.

L'invention apporte une solution optimale à l'ensemble de ces problèmes grâce à un dispositif de nettoyage plus efficace, plus simple et moins encombrant que les dispositifs connus jusqu'à présent.The invention provides an optimal solution to all of these problems thanks to a cleaning device which is more efficient, simpler and less bulky than the devices known up to now.

L'invention concerne donc, d'une façon générale, un dispositif de nettoyage ou polissage d'un cylindre, monté rotatif autour d'un axe, et comprenant :

  • un organe de support articulé autour d'un axe fixe y'y écarté du cylindre à nettoyer et parallèle à l'axe de celui-ci, et comportant deux bras parallèles s'étendant respectivement entre une extrémité interne dirigée vers le cylindre et une extrémité externe dirigée vers l'extérieur,
  • un outil de nettoyage en forme de rouleau cylindrique monté rotatif, à ses extrémités, sur deux paliers portés respectivement par les extrémités internes desdits bras de support et définissant un axe de rotation du rouleau sensiblement parallèle à l'axe du cylindre,
  • des moyens de commande du déplacement de l'organe de support entre une position d'application du rouleau sur le cylindre et une position écartée, et
  • des moyens de commande de la rotation du rouleau autour de son axe x'x, comportant un organe rotatif de commande sur lequel est appliqué un couple moteur et des moyens de transmission dudit couple formant une chaîne cinématique entre ledit organe rotatif de commande et au moins un organe d'entraînement calé sur au moins une extrémité entraînée du rouleau.
The invention therefore relates, in general, to a device for cleaning or polishing a cylinder, rotatably mounted around an axis, and comprising:
  • a support member articulated around a fixed axis y'y spaced from the cylinder to be cleaned and parallel to the axis thereof, and comprising two parallel arms extending respectively between an internal end directed towards the cylinder and one end externally directed outwards,
  • a cleaning tool in the form of a cylindrical roller rotatably mounted, at its ends, on two bearings carried respectively by the internal ends of said support arms and defining an axis of rotation of the roller substantially parallel to the axis of the cylinder,
  • means for controlling the movement of the support member between a position for applying the roller to the cylinder and a separated position, and
  • means for controlling the rotation of the roller around its axis x'x, comprising a rotary control member to which a motor torque is applied and means for transmitting said torque forming a kinematic chain between said rotary control member and at least one drive member wedged on at least a driven end of the roller.

Conformément à l'invention, les extrémités externes des deux bras de support sont articulées, autour d'un axe fixe y'y parallèle à l'axe du cylindre, respectivement, sur deux paliers alignés portés chacun par un support fixe et sont associés à des moyens de commande du pivotement simultané desdits bras pour l'application du rouleau de nettoyage sur le cylindre, et l'organe de commande de la rotation de l'extrémité entraînée du rouleau est porté par le palier du bras de support de celle-ci et est centré sur ledit axe de pivotement y'y, l'ensemble de la chaîne cinématique de transmission du couple moteur étant monté sur ledit bras de support de façon à pivoter avec celui-ci autour dudit axe de l'organe de commande de rotation.According to the invention, the external ends of the two support arms are articulated, about a fixed axis y'y parallel to the axis of the cylinder, respectively, on two aligned bearings each carried by a fixed support and are associated with means for controlling the simultaneous pivoting of said arms for applying the cleaning roller to the cylinder, and the member for controlling the rotation of the driven end of the roller is carried by the bearing of the support arm for the latter and is centered on said pivot axis y'y, the entire kinematic chain of transmission of the engine torque being mounted on said support arm so as to pivot therewith around said axis of the rotation control member .

On voit que, d'une manière générale, l'organe de support du rouleau est constitué simplement de deux bras de même longueur tournant autour de deux paliers fixes écartés définissant un axe de pivotement fixe sur lequel est centré l'organe de commande de rotation.It can be seen that, in general, the support member for the roller consists simply of two arms of the same length rotating around two fixed spaced bearings defining a fixed pivot axis on which the rotation control member is centered. .

En outre, comme l'ensemble de la chaîne cinématique est porté par l'un des deux bras et pivote avec celui-ci pour l'application du rouleau sur le cylindre, les deux bras peuvent être indépendants l'un de l'autre et peuvent prendre des orientations légèrement différentes, le rouleau restant ainsi appliqué sur le cylindre en suivant les désalignements éventuels de celui-ci.In addition, as the entire kinematic chain is carried by one of the two arms and pivots with it for the application of the roller on the cylinder, the two arms can be independent of each other and may take slightly different orientations, the roller thus remaining applied to the cylinder, following any misalignments thereof.

De la sorte, pour transmettre le couple de rotation au rouleau, il n'est plus nécessaire d'utiliser, comme dans les dispositions connues, des systèmes compliqués tels que des allonges à cardans, pour suivre les déplacements du rouleau entre sa position écartée et sa position d'application sur le cylindre.In this way, to transmit the torque to the roller, it is no longer necessary to use, as in the known arrangements, complicated systems such as cardan extensions, to follow the movements of the roller between its separated position and its position of application on the cylinder.

De préférence, l'organe d'entraînement et l'organe de commande de la rotation sont constitués, respectivement, par deux roues dentées reliées cinématiquement et montées rotatives, respectivement, autour de l'axe de rotation du rouleau et de l'axe de pivotement des bras de support.Preferably, the drive member and the rotation control member are constituted, respectively, by two toothed wheels kinematically connected and rotatably mounted, respectively, around the axis of rotation of the roller and the axis of pivoting of the support arms.

Dans un premier mode de réalisation, la chaîne cinématique comprend au moins un pignon monté fou sur le bras de support, dans la partie centrale de celui-ci et engrenant simultanément, de part et d'autre, avec les deux roues dentées de commande de la rotation et d'entraînement du rouleau.In a first embodiment, the kinematic chain comprises at least one pinion mounted idly on the support arm, in the central part of the latter and simultaneously meshing, on both sides, with the two toothed control wheels of rotation and drive of the roller.

Cependant, les diamètres respectifs des deux roues dentées peuvent être déterminés en fonction de la distance entre l'axe de pivotement des bras de support et l'axe de rotation du rouleau de telle sorte que lesdites roues engrènent directement l'une sur l'autre.However, the respective diameters of the two toothed wheels can be determined as a function of the distance between the pivot axis of the support arms and the axis of rotation of the roller so that said wheels mesh directly with each other. .

D'autre part, il est possible de remplacer le pignon fou intermédiaire par une chaîne de transmission du type Galle engrénant sur les deux roues dentées.On the other hand, it is possible to replace the idler intermediate gear by a Galle type transmission chain meshing on the two toothed wheels.

Selon une autre caractéristique très avantageuse, l'organe de commande de rotation est lié à l'extrémité correspondante du rouleau par une liaison axialement coulissante susceptible de transmettre au rouleau le couple de rotation avec possibilité de déplacement axial dudit rouleau.According to another very advantageous characteristic, the rotation control member is linked to the corresponding end of the roller by an axially sliding link capable of transmitting the torque to the roller with the possibility of axial displacement of said roller.

De préférence, cette liaison coulissante comprend un arbre centré sur l'axe du rouleau et lié en rotation avec celui-ci, à une extrémité, par l'intermédiaire d'un moyen d'engrènement articulé tel qu'une rotule dentée, ledit arbre étant muni, sur sa périphérie, de dents qui engrènent avec des rainures correspondantes ménagées sur la face interne d'un fourreau muni, sur sa périphérie, d'une partie dentée constituant l'organe de commande de rotation.Preferably, this sliding connection comprises a shaft centered on the axis of the roller and linked in rotation with the latter, at one end, by means of an articulated engagement means such as a toothed ball joint, said shaft being provided, on its periphery, with teeth which mesh with corresponding grooves formed on the internal face of a sheath provided, on its periphery, with a toothed part constituting the rotation control member.

Pour assurer une liaison rotulante avec l'extrémité correspondante du rouleau, l'arbre coulissant est muni d'une partie sphérique logée dans un coussinet sphérique creux ménagé dans une crapaudine fixée sur l'extrémité du rouleau, ladite partie sphérique étant munie de crabots s'engageant dans des rainures correspondantes de la crapaudine pour la solidarisation des deux pièces en rotation avec une possibilité d'articulation universelle permettant les désalignements des axes de rotation de l'organe de commande et du rouleau.To ensure a ball-and-socket connection with the corresponding end of the roller, the sliding shaft is provided with a spherical part housed in a hollow spherical bearing formed in a clamp fixed on the end of the roller, said spherical part being provided with dogs. 'engaging in corresponding grooves of the plate for securing the two rotating parts with a possibility of universal articulation allowing misalignment of the axes of rotation of the control member and the roller.

De façon analogue, l'extrémité du rouleau opposée à l'extrémité entraînée est portée, avec possibilité d'articulation, par une tige montée coulissante axialement et sans possibilité de rotation, sur l'extrémité du second bras de support, ladite tige étant munie, à son extrémité tournée vers le rouleau, d'un roulement rotulant ayant une cage interne montée sur la tige et une cage externe fixée sur l'extrémité correspondante du rouleau.Similarly, the end of the roller opposite the driven end is carried, with the possibility of articulation, by a rod mounted to slide axially and without the possibility of rotation, on the end of the second support arm, said rod being provided , at its end facing the roller, of a swiveling bearing having an internal cage mounted on the rod and an external cage fixed on the corresponding end of the roller.

En outre, le rouleau est associé à des moyens de trancanage qui, de préférence, prennent appui directement sur une extrémité du rouleau, dans l'axe de celui-ci, pour déterminer un déplacement alternatif parallèlement à son axe.In addition, the roller is associated with cutting means which, preferably, bear directly on one end of the roller, in the axis thereof, to determine an alternating movement parallel to its axis.

De façon avantageuse, l'extrémité de la tige coulissante tournée du côté opposé au rouleau forme un piston monté coulissant axialement dans une douille formant le corps d'un vérin fixé sur le fourreau et alimenté en huile pour commander le déplacement axial du rouleau en agissant sur le piston.Advantageously, the end of the sliding rod facing the side opposite the roller forms a piston mounted to slide axially in a bushing forming the body of a jack fixed on the sheath and supplied with oil to control the axial movement of the roller by acting on the piston.

Grâce à ces dispositions, l'invention permet de réduire considérablement l'encombrement du dispositif de nettoyage et de ses moyens d'entraînement en rotation et de simplifier le démontage du rouleau en donnant un accès direct au cylindre sans démonter les organes d'entraînement.Thanks to these provisions, the invention makes it possible to considerably reduce the size of the cleaning and its rotation drive means and to simplify the disassembly of the roller by giving direct access to the cylinder without disassembling the drive members.

En outre, dans le cas où le rouleau sert au nettoyage d'un cylindre actif de laminoir, il est particulièrement avantageux de monter les paliers de pivotement des bras de support du rouleau, directement sur les empoises du cylindre.In addition, in the case where the roller is used for cleaning an active rolling mill cylinder, it is particularly advantageous to mount the pivot bearings of the roller support arms, directly on the chocks of the cylinder.

On notera que les dispositions selon l'invention simplifient considérablement les opérations de maintenance ou de réparation.It will be noted that the arrangements according to the invention considerably simplify maintenance or repair operations.

De plus, l'ensemble de nettoyage selon l'invention résiste mieux aux efforts de déformation dûs aux désalignements du rouleau et permet de réduire l'usure des paliers tout en autorisant un réglage fin du mouvement de trancanage.In addition, the cleaning assembly according to the invention better resists deformation forces due to misalignments of the roller and makes it possible to reduce the wear of the bearings while allowing fine adjustment of the cutting movement.

En outre, le dispositif de nettoyage peut également être associé à des moyens de réglage de la pression exercée par le rouleau sur le cylindre comportant, à chaque extrémité du rouleau, une came montée rotative sur l'extrémité correspondante du bras de support autour de l'axe de l'arbre, respectivement de la tige, et ayant un profil excentré par rapport audit axe, ladite came prenant appui sur une butée fixe qui, dans le cas d'un laminoir, peut être montée sur une partie correspondante d'une empoise du cylindre.In addition, the cleaning device can also be associated with means for adjusting the pressure exerted by the roller on the cylinder comprising, at each end of the roller, a cam rotatably mounted on the corresponding end of the support arm around the 'axis of the shaft, respectively of the rod, and having an eccentric profile relative to said axis, said cam bearing on a fixed stop which, in the case of a rolling mill, can be mounted on a corresponding part of a cylinder chock.

Dans un mode de réalisation préférentiel, le bras de support de l'extrémité entraînée du rouleau a la forme d'un caisson creux à l'intérieur duquel sont placés l'organe d'entraînement, l'organe de commande de la rotation et la chaîne cinématique.In a preferred embodiment, the support arm of the driven end of the roller has the form of a hollow box inside which are placed the drive member, the rotation control member and the kinematic chain.

De plus, la liaison rotulante entre l'arbre de commande de rotation et l'extrémité correspondante du rouleau peut avantageusement comprendre une partie sphérique ménagée à l'extrémité de l'arbre et logée dans un coussinet sphérique creux ménagé dans une crapaudine fixée sur l'extrémité du rouleau, la partie sphérique étant munie de crabots s'engageant dans des rainures correspondantes de la crapaudine pour la solidarisation des deux pièces en rotation avec possibilité d'articulation.In addition, the swivel connection between the rotation control shaft and the corresponding end of the roller may advantageously comprise a part spherical formed at the end of the shaft and housed in a hollow spherical bearing formed in a crapaudine fixed on the end of the roller, the spherical part being provided with dogs engaging in corresponding grooves of the crapaudine for the fixing of the two rotating parts with possibility of articulation.

L'invention couvre également un laminoir comprenant un bâti dans lequel sont logés au moins deux cylindres de laminoir, au moins l'un de ces cylindres étant muni d'un dispositif de nettoyage comportant les caractéristiques précédentes.The invention also covers a rolling mill comprising a frame in which are housed at least two rolling mill rolls, at least one of these rolls being provided with a cleaning device comprising the preceding characteristics.

La description suivante de certains exemples de réalisation, illustrée par les dessins annexés, permettra de mieux comprendre l'invention et de faire apparaître d'autres caractéristiques et avantages de celle-ci.The following description of certain exemplary embodiments, illustrated by the appended drawings, will make it possible to better understand the invention and to reveal other characteristics and advantages of it.

La Figure 1 montre, à titre d'exemple, un laminoir de type Quarto en coupe par le plan vertical passant par les axes des cylindres.Figure 1 shows, by way of example, a Quarto type rolling mill in section through the vertical plane passing through the axes of the rolls.

La Figure 2 est un schéma montrant les éléments essentiels d'un dispositif de brossage selon l'invention, en coupe suivant la ligne II/II de la Figure 3.FIG. 2 is a diagram showing the essential elements of a brushing device according to the invention, in section along line II / II of FIG. 3.

La Figure 3 est une vue de côté d'une empoise portant le dispositif de brossage selon l'invention.Figure 3 is a side view of a chock carrying the brushing device according to the invention.

La Figure 4 est une vue partielle selon IV/IV de la Figure 3.Figure 4 is a partial view along IV / IV of Figure 3.

La Figure 5 est une vue de détail de la chaîne cinématique de commande de la rotation.Figure 5 is a detail view of the kinematic chain of rotation control.

La Figure 6 est une vue de détail du dispositif de trancanage.Figure 6 is a detail view of the cutting device.

La Figure 1 montre, en une coupe verticale, de façon très schématisée, l'ensemble d'un laminoir muni de dispositifs de nettoyage, notamment, des cylindres de travail.Figure 1 shows, in a vertical section, very schematically, the assembly of a rolling mill provided with cleaning devices, in particular, working rolls.

Le laminoir représenté est, à titre d'exemple, de type "Quarto", et comprend donc, entre les deux montants d'une cage 1, deux cylindres d'appui 2, 2', et deux cylindres de travail 4 portés, à leurs extrémités, par des empoises, respectivement 30, 3, qui sont montées de façon verticalement coulissante le long de parties de guidage ménagées sur les montants de la cage 1.The rolling mill shown is, for example, of "Quarto" type, and therefore comprises, between the two uprights of a cage 1, two support cylinders 2, 2 ', and two working cylinders 4 carried, at their ends, by chocks, respectively 30, 3, which are mounted vertically sliding along guide parts provided on the uprights of the cage 1.

Dans l'exemple représenté, chaque cylindre de travail 4, 4', est associé à un dispositif de nettoyage constitué d'une brosse 41 en forme de rouleau cylindrique, entraînée en rotation autour de son axe et appliquée sur le cylindre correspondant. Cependant, on pourrait avantageusement utiliser deux rouleaux de nettoyage placés symétriquement de part et d'autre du plan de serrage des cylindres, comme on l'a représenté sur la Figure 3.In the example shown, each working cylinder 4, 4 ′ is associated with a cleaning device consisting of a brush 41 in the form of a cylindrical roller, driven in rotation about its axis and applied to the corresponding cylinder. However, one could advantageously use two cleaning rollers placed symmetrically on either side of the cylinder clamping plane, as shown in FIG. 3.

Tous ces dispositifs sont identiques, la description qui suit étant faite en se référant aux Figures 2 et 3 qui représentent le cylindre de travail inférieur.All these devices are identical, the description which follows being made with reference to FIGS. 2 and 3 which represent the lower working cylinder.

De même, pour des raisons de clarté, on n'a pas décrit les diverses pièces ou éléments communément nécessaires au bon fonctionnement d'un laminoir qui sont connus de l'homme du métier.Similarly, for reasons of clarity, the various parts or elements commonly necessary for the proper functioning of a rolling mill which have been known to those skilled in the art have not been described.

Selon une caractéristique essentielle de l'invention, chaque rouleau de nettoyage 41 est articulé sur les extrémités de deux bras de support montés pivotants, à leurs autres extrémités, sur des paliers fixes qui sont avantageusement portés par les empoises du cylindre à nettoyer, dans le cas d'un laminoir.According to an essential characteristic of the invention, each cleaning roller 41 is articulated on the ends of two support arms pivotally mounted, at their other ends, on fixed bearings which are advantageously carried by the chocks of the cylinder to be cleaned, in the case of a rolling mill.

La Figure 2 montre, schématiquement, un dispositif de nettoyage, en coupe longitudinale par un plan passant par l'axe x'x de la brosse et l'axe y'y de pivotement des bras de support.Figure 2 shows, schematically, a cleaning device, in longitudinal section through a plane passing through the axis x'x of the brush and the axis y'y of pivoting of the support arms.

La brosse rotative 41 est représentée en appui contre le cylindre 4 à nettoyer et tourne autour d'un axe 13 sensiblement parallèle à l'axe de rotation du cylindre 4.The rotary brush 41 is shown in abutment against the cylinder 4 to be cleaned and rotates around an axis 13 substantially parallel to the axis of rotation of the cylinder 4.

L'organe de support de la brosse 41 est constitué uniquement de deux bras 15, 16, sensiblement parallèles qui s'étendent chacun entre une extrémité interne 15a, 16a, tournée vers le cylindre 4, et une extrémité externe 15b, 16b, tournée vers l'extérieur.The brush support member 41 consists only of two substantially parallel arms 15, 16 which each extend between an internal end 15a, 16a, facing the cylinder 4, and an external end 15b, 16b, facing outside.

La brosse rotative 41 est portée, à ses extrémités, par deux arbres 20, 23, tournant dans des paliers 21, 22, logés dans les extrémités internes 15a, 16a, des deux bras de support 15 et 16, ces derniers étant montés pivotants sur deux paliers 7, 7', qui définissent un même axe de pivotement y'y et sont portés par des supports fixes constitués, respectivement, dans le cas d'un laminoir, par les deux empoises 3, 3', du cylindre 4.The rotary brush 41 is carried, at its ends, by two shafts 20, 23, rotating in bearings 21, 22, housed in the internal ends 15a, 16a, of the two support arms 15 and 16, the latter being pivotally mounted on two bearings 7, 7 ', which define the same pivot axis y'y and are carried by fixed supports constituted, respectively, in the case of a rolling mill, by the two chocks 3, 3', of the cylinder 4.

On voit donc que, à part le rouleau 41 qui s'étend entre les extrémités internes des deux bras 15, 16, ces derniers sont totalement indépendants l'un de l'autre.It can therefore be seen that, apart from the roller 41 which extends between the internal ends of the two arms 15, 16, the latter are completely independent of one another.

Sur la Figure 2, qui est une vue schématique, seules les parties correspondantes des empoises 3, 3', ont été représentées.In Figure 2, which is a schematic view, only the corresponding parts of chocks 3, 3 ', have been shown.

Dans l'exemple représenté, la brosse 41 est entraînée en rotation à l'une de ses extrémités 19 par un organe rotatif d'entraînement 25, centré sur l'arbre correspondant 20 et solidaire en rotation de celui-ci.In the example shown, the brush 41 is driven in rotation at one of its ends 19 by a rotary drive member 25, centered on the corresponding shaft 20 and integral in rotation with the latter.

Le couple de rotation est appliqué sur un organe rotatif de commande 27 centré sur l'axe de pivotement y'y du bras de support correspondant 15 et est transmis à l'organe d'entraînement 25 par une chaîne cinématique montée sur le bras 15 de façon à tourner avec celui-ci.The torque is applied to a rotary control member 27 centered on the pivot axis y'y of the corresponding support arm 15 and is transmitted to the drive member 25 by a kinematic chain mounted on the arm 15 of way to rotate with this one.

Comme on l'a représenté en détail sur la Figure 5, le bras de support 15 est constitué avantageusement d'un caisson creux monté pivotant, autour de l'axe y'y, sur l'empoise 3, par l'intermédiaire d'un arbre creux 29 dans lequel passe un arbre de commande 17 sur lequel est appliqué le couple moteur.As shown in detail in FIG. 5, the support arm 15 advantageously consists of a hollow box pivotally mounted, around the axis y'y, on the chock 3, by means of a hollow shaft 29 through which passes a control shaft 17 on which is applied the engine torque.

La chaîne cinématique, qui est montée à l'intérieur du bras en forme de caisson 15, est constituée, dans l'exemple représenté, par deux roues dentées constituant respectivement l'organe de commande 27 centré sur l'axe de pivotement y'y et l'organe d'entraînement 25 centré sur l'arbre 20 du rouleau 41, et qui engrènent avec un pignon intermédiaire 26 monté fou sur le caisson 15 entre lesdites roues dentées 27, 25.The kinematic chain, which is mounted inside the box-shaped arm 15, is constituted, in the example shown, by two toothed wheels constituting respectively the control member 27 centered on the pivot axis y'y and the drive member 25 centered on the shaft 20 of the roller 41, and which mesh with an intermediate pinion 26 mounted idly on the box 15 between said toothed wheels 27, 25.

De façon particulièrement avantageuse, le couple de commande est appliqué directement sur l'arbre de commande 17 par un moteur 28 fixé sur le support 3.In a particularly advantageous manner, the control torque is applied directly to the control shaft 17 by a motor 28 fixed on the support 3.

On voit que, de la sorte, tous les moyens de commande de rotation du rouleau 41 tournent avec le bras 15 autour de l'axe y'y lorsque le rouleau 41 passe de la position écartée à la position d'application sur le cylindre 4.It can be seen that, in this way, all of the means for controlling the rotation of the roller 41 rotate with the arm 15 around the axis y'y when the roller 41 passes from the separated position to the position of application on the cylinder 4 .

La rotation des deux bras 15, 16, peut avantageusement être commandée par deux vérins 45 prenant appui sur les supports 3, 3', et alimentés en synchronisme.The rotation of the two arms 15, 16 can advantageously be controlled by two jacks 45 bearing on the supports 3, 3 ', and supplied in synchronism.

Il faut noter que la commande individuelle de la rotation des deux bras 15 et 16 permet d'absorber des désalignements éventuels entre l'axe du cylindre 4 et l'axe du rouleau 41 et c'est pourquoi les deux arbres 20, 23, du rouleau sont reliés, respectivement, aux deux extrémités de celui-ci par des organes 19, 19', permettant de légers désalignements qui seront décrits plus loin.It should be noted that the individual control of the rotation of the two arms 15 and 16 makes it possible to absorb any misalignments between the axis of the cylinder 4 and the axis of the roller 41 and this is why the two shafts 20, 23, of the roller are connected, respectively, to the two ends of the latter by members 19, 19 ′, allowing slight misalignments which will be described later.

Par ailleurs, il est utile, comme on l'a indiqué, de commander un déplacement de trancanage du rouleau parallèlement à son axe et les deux arbres 20, 23, peuvent donc se déplacer axialement par rapport aux bras de support 15, 16.Furthermore, it is useful, as indicated, to control a cutting movement of the roller parallel to its axis and the two shafts 20, 23, can therefore move axially relative to the support arms 15, 16.

Du côté de l'extrémité entraînée 19 du rouleau 41, c'est-à-dire sur la gauche de la Figure 2, l'arbre d'entraînement 20 est muni de cannelures qui s'engagent dans des rainures internes correspondantes d'un fourreau 21 qui est muni d'une partie dentée constituant la roue d'entraînement 25. L'arbre 20 peut ainsi être entraîné en rotation d'une façon axialement coulissante.On the side of the driven end 19 of the roller 41, that is to say on the left of Figure 2, the drive shaft 20 is provided with grooves which engage in corresponding internal grooves of a sleeve 21 which is provided with a toothed part constituting the drive wheel 25. The shaft 20 can thus be rotated in an axially sliding manner.

Le fourreau 21 est monté rotatif, par l'intermédiaire de deux roulements écartés 40, 40', dans une pièce tubulaire 31 fixée sur l'extrémité interne du bras 15. La Figure 5 montre, de façon détaillée, un exemple de réalisation.The sleeve 21 is rotatably mounted, by means of two spaced apart bearings 40, 40 ′, in a tubular part 31 fixed on the internal end of the arm 15. FIG. 5 shows, in detail, an exemplary embodiment.

De façon comparable, l'extrémité opposée 19' de la brosse 41 est montée rotative sur l'extrémité d'un arbre 23 pouvant coulisser axialement sur l'extrémité interne du second bras de support 16.Similarly, the opposite end 19 'of the brush 41 is rotatably mounted on the end of a shaft 23 which can slide axially on the internal end of the second support arm 16.

Etant donné que l'arbre 23 ne commande pas la rotation du rouleau 41, il peut être constitué d'une simple tige fixe en rotation et portant l'extrémité 19' du rouleau 41 par l'intermédiaire d'un palier à roulements rotulants 22. La tige 23 est rainurée et coulisse axialement dans un fourreau 24 rainuré intérieurement et fixé sur l'extrémité interne 16a du bras 16.Since the shaft 23 does not control the rotation of the roller 41, it can consist of a simple rod fixed in rotation and carrying the end 19 'of the roller 41 by means of a bearing with swiveling bearings 22 The rod 23 is grooved and slides axially in a sheath 24 internally grooved and fixed on the internal end 16a of the arm 16.

Grâce au rainurage intérieur des fourreaux 21 et 24, l'arbre 20 et la tige 23 peuvent coulisser axialement avec le rouleau 41, l'arbre d'entraînement 20 restant solidarisé en rotation avec l'organe de commande 27.Thanks to the internal grooving of the sleeves 21 and 24, the shaft 20 and the rod 23 can slide axially with the roller 41, the drive shaft 20 remaining secured in rotation with the control member 27.

Pour permettre des désalignements éventuels entre l'axe x'x du rouleau et l'axe de l'arbre d'entraînement 20, celui-ci est muni, à son extrémité tournée vers le rouleau, d'une tête 42 en forme de rotule sphérique logée dans une pièce formant crapaudine 43 qui peut être fixée de façon amovible sur l'extrémité 19 du rouleau 41.To allow possible misalignments between the axis x'x of the roller and the axis of the drive shaft 20, the latter is provided, at its end facing the roller, with a ball-shaped head 42 spherical housed in a piece forming a claw 43 which can be removably attached to the end 19 of the roller 41.

La rotule 42 est munie de crabots 44 qui s'engagent dans des rainures correspondantes de la crapaudine 43 de façon à permettre la transmission du couple de rotation sans gêner l'articulation.The ball 42 is provided with dogs 44 which engage in corresponding grooves of the clamp 43 of so as to allow the transmission of the torque without disturbing the joint.

En position de service, la crapaudine 43 est fixée sur l'extrémité 19 du rouleau 41 et l'arbre 20 peut coulisser librement dans le fourreau 21, en suivant le mouvement de trancanage appliqué sur le rouleau 41, tout en entraînant ce dernier.In the service position, the clamp 43 is fixed to the end 19 of the roller 41 and the shaft 20 can slide freely in the sleeve 21, following the cutting movement applied to the roller 41, while driving the latter.

Comme on l'a indiqué plus haut, la tige 23, qui est reliée au rouleau 41 par un roulement rotulant 22, peut coulisser sans tourner, parallèlement à une direction fixe, dans le fourreau 24 fixé sur le bras 16 solidaire de l'empoise 3'. Le dispositif de trancanage 5 associé au rouleau 41 peut ainsi être considérablement simplifié, comme on l'a indiqué sur la Figure 2 et, plus en détail, sur la Figure 6.As indicated above, the rod 23, which is connected to the roller 41 by a swiveling bearing 22, can slide without turning, parallel to a fixed direction, in the sheath 24 fixed on the arm 16 secured to the chock 3 '. The cutting device 5 associated with the roller 41 can thus be considerably simplified, as indicated in FIG. 2 and, in more detail, in FIG. 6.

En effet, la tige 23 est munie, à son extrémité opposée au rouleau 41, d'une tige centrale 51 portant un piston 52 qui peut coulisser à l'intérieur d'une douille 53 fixée par une base 54 sur l'extrémité du fourreau 24. L'ensemble constitue ainsi un vérin à double effet alimenté par des conduits 55 percés à l'intérieur du fourreau 24.Indeed, the rod 23 is provided, at its end opposite the roller 41, with a central rod 51 carrying a piston 52 which can slide inside a bushing 53 fixed by a base 54 on the end of the sheath 24. The assembly thus constitutes a double-acting cylinder fed by conduits 55 drilled inside the sheath 24.

Grâce à ces dispositions qui permettent de loger intégralement les dispositifs de commande de rotation et de trancanage, respectivement dans les deux bras de support 15 et 16, le démontage de l'ensemble est considérablement facilité.Thanks to these arrangements which make it possible to fully house the rotation control and cutting devices, respectively in the two support arms 15 and 16, the disassembly of the assembly is considerably facilitated.

En effet, la crapaudine 43 ainsi que la cage externe du roulement rotulant 22 sont simplement fixées par des vis sur les extrémités correspondantes 19, 19' de la brosse 41.In fact, the clamp 43 and the outer cage of the swiveling bearing 22 are simply fixed by screws on the corresponding ends 19, 19 'of the brush 41.

Comme on l'a indiqué en coupe partielle sur les Figures 5 et 6, il suffit donc de desserrer les vis de fixation et de faire coulisser dans leurs fourreaux 21, 24, les arbres 20, 23, pour écarter la crapaudine 43 et le roulement 22 en libérant le rouleau 41. Les dispositifs d'entraînement et de trancanage fixés aux extrémités des bras 15 et 16 restent ainsi solidaires, respectivement, des empoises 3, 3', qui peuvent être démontées normalement.As indicated in partial section in FIGS. 5 and 6, it is therefore sufficient to loosen the fixing screws and to slide in their sleeves 21, 24, the shafts 20, 23, in order to spread the basket 43 and the bearing 22 by releasing the roller 41. The drive and cutting devices fixed to the ends of the arms 15 and 16 thus remain integral, respectively, with chocks 3, 3 ', which can be disassembled normally.

Le couple moteur peut être appliqué sur l'arbre 17 de toute façon adéquate. Cependant, dans le cas d'un laminoir, il est particulièrement intéressant d'utiliser un moteur 28 propre au dispositif de brossage 11, qui peut être monté sur l'empoise 3 du cylindre ou bien directement par le bras 15.The engine torque can be applied to the shaft 17 in any suitable manner. However, in the case of a rolling mill, it is particularly advantageous to use a motor 28 specific to the brushing device 11, which can be mounted on the chock 3 of the cylinder or else directly by the arm 15.

D'autres moyens pourraient cependant être employés pour commander l'entraînement des brosses, par exemple, un dispositif commun à tous les dispositifs de brossage du laminoir.Other means could however be used to control the drive of the brushes, for example, a device common to all the brushing devices of the rolling mill.

Dans une autre variante de réalisation de l'invention, l'arbre 17 peut être calé sur un pignon relié au cylindre 4 par une chaîne cinématique telle qu'un engrenage ou une courroie.In another alternative embodiment of the invention, the shaft 17 can be fixed on a pinion connected to the cylinder 4 by a kinematic chain such as a gear or a belt.

Le dispositif de commande de rotation est prévu pour entraîner la brosse dans un sens ou dans l'autre en fonction des contraintes du laminage.The rotation control device is designed to drive the brush in one direction or the other depending on the constraints of the rolling.

Comme on l'a indiqué sur la Figure 3, chaque cylindre de travail 4, 4', peut être associé à deux brosses rotatives 41 (41'), placées de part et d'autre du plan de serrage et appliquées sur le cylindre 4 par des vérins 45 articulés sur l'empoise 3 et prenant appui sur l'extrémité libre du bras du support 15.As indicated in Figure 3, each working cylinder 4, 4 ', can be associated with two rotary brushes 41 (41'), placed on either side of the clamping plane and applied to the cylinder 4 by jacks 45 articulated on the chock 3 and bearing on the free end of the arm of the support 15.

Par ailleurs, selon une autre caractéristique avantageuse de l'invention, chaque brosse rotative 41 peut être associée à un dispositif d'appui permettant de maintenir la position du rouleau par rapport au cylindre 4 et, en outre, de régler la pression exercée.Furthermore, according to another advantageous characteristic of the invention, each rotary brush 41 can be associated with a support device making it possible to maintain the position of the roller relative to the cylinder 4 and, moreover, to adjust the pressure exerted.

Un tel dispositif, représenté sur les Figures 3 et 4, comporte, à chaque extrémité du rouleau 41, une came 32, 32', prenant appui sur une butée 33.Such a device, shown in Figures 3 and 4, comprises, at each end of the roller 41, a cam 32, 32 ', bearing on a stop 33.

Comme indiqué sur la Figure 2, la came 32 est fixée sur une douille 32a tournant sur l'extrémité 31 du bras 15 et présente un profil arrondi, excentré par rapport à l'axe 20a de l'arbre 20 de commande de rotation. La came 32' présente le même profil excentré et tourne autour de l'axe 23a de la tige 23 de commande de trancanage.As shown in Figure 2, the cam 32 is fixed to a sleeve 32a rotating on the end 31 of the arm 15 and has a rounded profile, eccentric with respect to the axis 20a of the shaft 20 for controlling rotation. The cam 32 'has the same eccentric profile and rotates around the axis 23a of the rod 23 for cutting control.

Lorsque le rouleau 41 est appliqué contre le cylindre 4, par les vérins 45, les deux cames 32, 32', montées aux extrémités des bras 15, 16, prennent appui sur deux butées 33 fixées respectivement sur les faces latérales correspondantes de l'empoise 3. De la sorte, le rouleau 41 est maintenu dans une position fixe par rapport au cylindre 4, l'écartement de leurs axes étant constant. Les cames 32, 32', permettent de régler le parallélisme des axes et la pression du rouleau.When the roller 41 is applied against the cylinder 4, by the jacks 45, the two cams 32, 32 ', mounted at the ends of the arms 15, 16, bear on two stops 33 fixed respectively on the corresponding lateral faces of the chock 3. In this way, the roller 41 is held in a fixed position relative to the cylinder 4, the spacing of their axes being constant. The cams 32, 32 ′ make it possible to adjust the parallelism of the axes and the pressure of the roller.

En outre, chaque butée 33 est avantageusement constituée d'une douille tournant autour d'un axe 33a qui traverse la face latérale de l'empoise et dont le profil est excentré par rapport à son axe de rotation. Cette douille peut être munie, à son extrémité opposée, d'un organe d'indexage non représenté qui permet de faire tourner la butée 33, et qui peut avantageusement être muni d'une graduation étalonnée de façon appropriée.In addition, each stop 33 advantageously consists of a sleeve rotating around an axis 33a which crosses the lateral face of the chock and whose profile is eccentric with respect to its axis of rotation. This socket can be provided, at its opposite end, with an indexing member, not shown, which makes it possible to rotate the stop 33, and which can advantageously be provided with an appropriately calibrated graduation.

Les cames 32, 32', constituent un moyen de réglage grossier qui est positionné en atelier de façon à régler l'écart moyen, à chaque extrémité, entre l'axe de la brosse et l'axe du cylindre et, par conséquent, la pénétration de la brosse.The cams 32, 32 ′ constitute a rough adjustment means which is positioned in the workshop so as to adjust the mean distance, at each end, between the axis of the brush and the axis of the cylinder and, consequently, the brush penetration.

On peut ensuite faire varier, le cas échéant, les positions angulaires des deux cames 32, 32', par exemple pour régler le parallélisme du rouleau 41 avec le cylindre 4.The angular positions of the two cams 32, 32 ′ can then be varied, if necessary, for example to adjust the parallelism of the roller 41 with the cylinder 4.

Les butées à excentrique 33 sur lesquelles s'appuient les cames 32, 32', constituent ainsi un moyen de réglage fin sur lequel on peut intervenir en cours de laminage, notamment pour régler l'effet de frottement de la brosse en fonction de l'état de surface du cylindre 4.The eccentric stops 33 on which the cams 32, 32 ′ rest, thus constitute a means fine adjustment on which one can intervene during rolling, in particular to adjust the friction effect of the brush as a function of the surface condition of the cylinder 4.

Il est aussi possible de réaliser une valeur de réglage différente entre le côté moteur et le côté trancanage, les deux butées 33, 33' étant indépendantes.It is also possible to produce a different setting value between the motor side and the cutting side, the two stops 33, 33 ′ being independent.

On voit donc que, grâce aux dispositions qui viennent d'être décrites, les deux bras de support 15 et 16 peuvent prendre des orientations légèrement différentes pour bien appliquer contre le cylindre 4 le rouleau 41 qui peut coulisser axialement sans interférence avec les moyens de commande de rotation, le couple moteur étant transmis au rouleau en passant par l'axe 10 de pivotement des bras. Ainsi, on évite complètement l'utilisation d'allonges télescopiques à cardans et le démontage est facilité.It can therefore be seen that, thanks to the arrangements which have just been described, the two support arms 15 and 16 can take slightly different orientations in order to properly apply against the cylinder 4 the roller 41 which can slide axially without interference with the control means of rotation, the engine torque being transmitted to the roller passing through the pivot axis 10 of the arms. Thus, the use of telescopic cardan extensions is completely avoided and disassembly is facilitated.

L'invention ne se limite, cependant, pas aux seules dispositions qui viennent d'être décrites en détail, à titre d'exemple, et qui pourraient faire l'objet de variantes restant dans le cadre de protection des revendications.The invention is not limited, however, to only the provisions which have just been described in detail, by way of example, and which could be the subject of variants remaining within the scope of protection of the claims.

Par exemple, si la distance entre l'axe de pivotement 10 des bras 15 et 16 et l'axe de rotation de l'outil est assez réduite, on pourrait supprimer le pignon fou 26, les diamètres des roues dentées 25 et 27 étant déterminés de façon que celles-ci engrènent directement l'une sur l'autre.For example, if the distance between the pivot axis 10 of the arms 15 and 16 and the axis of rotation of the tool is sufficiently reduced, the idler gear 26 could be eliminated, the diameters of the toothed wheels 25 and 27 being determined so that they mesh directly on each other.

Mais le pignon fou 26 pourrait aussi être remplacé par une chaîne de transmission du type Galle engrenant sur les roues dentées 25 et 27.However, the idler gear 26 could also be replaced by a Galle type transmission chain meshing with the toothed wheels 25 and 27.

Par ailleurs, il est avantageux, comme on vient de l'indiquer, de placer sur l'une des empoises 3 les moyens de commande de la rotation et sur l'autre empoise 3' les moyens de trancanage.Furthermore, it is advantageous, as has just been indicated, to place on one of the chocks 3 the means for controlling the rotation and on the other chock 3 'the cutting means.

Cependant, il serait possible, également, selon une variante, de regrouper sur la même empoise l'ensemble des moyens de commande, le vérin de trancanage étant monté sur la pièce tubulaire 31, du côté opposé au rouleau 41, et prenant appui de l'arbre 20 par l'intermédiaire d'une butée tournante.However, it would also be possible, according to a variant, to group on the same chock all of the control means, the cutting cylinder being mounted on the tubular part 31, on the side opposite to the roller 41, and bearing on the shaft 20 by means of a rotary stop.

Par ailleurs, on a décrit un dispositif de nettoyage appliqué à un cylindre de travail, mais il est bien évident que des dispositifs analogues pourraient être associés aux cylindres d'appui.Furthermore, a cleaning device applied to a working cylinder has been described, but it is obvious that similar devices could be associated with the support cylinders.

Les signes de référence, insérés après les caractéristiques techniques mentionnées dans les revendications, ont pour seul but de faciliter la compréhension de ces dernières et n'en limitent aucunement la portée.The reference signs, inserted after the technical characteristics mentioned in the claims, have the sole purpose of facilitating the understanding of the latter and in no way limit their scope.

Claims (23)

Dispositif de nettoyage ou polissage d'un cylindre (4), monté rotatif autour d'un axe, comprenant : - un organe de support articulé autour d'un axe fixe y'y écarté du cylindre (4) et parallèle à l'axe de celui-ci, et comportant deux bras parallèles (15, 16) s'étendant respectivement entre une extrémité interne (15a, 16a) dirigée vers le cylindre (4) et une extrémité externe (15b, 16b) dirigée vers l'extérieur, - un outil de nettoyage (41) en forme de rouleau cylindrique monté rotatif, à ses extrémités, sur deux paliers portés respectivement par les extrémités internes (15a, 16a) desdits bras de support (15, 16) et définissant un axe de rotation x'x du rouleau (41) sensiblement parallèle à l'axe du cylindre (4), - des moyens (45) de commande du déplacement de l'organe de support (10) entre une position d'application du rouleau (41) sur le cylindre (4) et une position écartée, et - des moyens de commande de la rotation du rouleau (41) autour de son axe x'x, comportant au moins un organe rotatif de commande (27) sur lequel est appliqué un couple moteur et des moyens (26) de transmission dudit couple formant une chaîne cinématique entre ledit organe de commande (27) et au moins un organe rotatif d'entraînement (25) calé sur au moins une extrémité entraînée (19) du rouleau (41),
   caractérisé par le fait : - que les extrémités externes (15b, 16b) des deux bras de support (15, 16) sont articulées autour d'un axe y'y parallèle à l'axe du cylindre à nettoyer, respectivement sur deux paliers alignés (7, 7') portés chacun par un support fixe (3) et sont associés à des moyens (45) de commande du pivotement simultané desdits bras (15, 16) pour l'application du rouleau (41) sur le cylindre (4), - que l'organe rotatif de commande (27) de l'extrémité entraînée (19) du rouleau (41) est porté par le palier (7) du bras (15) de support de celle-ci et est centré sur ledit axe de pivotement y'y - et que l'ensemble de la chaîne cinématique de transmission (26) du couple moteur est monté sur ledit bras de support (15) de façon à pivoter avec celui-ci autour de l'axe y'y de l'organe de commande de rotation (27). Device for cleaning or polishing a cylinder (4), rotatably mounted about an axis, comprising: - a support member articulated around a fixed axis y'y spaced from the cylinder (4) and parallel to the axis thereof, and comprising two parallel arms (15, 16) extending respectively between an internal end (15a, 16a) directed towards the cylinder (4) and an external end (15b, 16b) directed towards the outside, a cleaning tool (41) in the form of a cylindrical roller mounted to rotate, at its ends, on two bearings carried respectively by the internal ends (15a, 16a) of said support arms (15, 16) and defining an axis of rotation x 'x of the roller (41) substantially parallel to the axis of the cylinder (4), means (45) for controlling the movement of the support member (10) between a position for applying the roller (41) to the cylinder (4) and a separated position, and - means for controlling the rotation of the roller (41) about its axis x'x, comprising at least one rotary control member (27) to which a motor torque is applied and means (26) for transmitting said torque forming a kinematic chain between said control member (27) and at least one rotary drive member (25) wedged on at least one driven end (19) of the roller (41),
characterized by the fact: - that the external ends (15b, 16b) of the two support arms (15, 16) are articulated around an axis y'y parallel to the axis of the cylinder to be cleaned, respectively on two aligned bearings (7, 7 ' ) each carried by a fixed support (3) and are associated with means (45) for controlling the simultaneous pivoting of said arms (15, 16) for applying the roller (41) to the cylinder (4), - That the rotary control member (27) of the driven end (19) of the roller (41) is carried by the bearing (7) of the arm (15) for supporting the latter and is centered on said axis of pivot y'y - And that the entire kinematic chain of transmission (26) of the engine torque is mounted on said support arm (15) so as to pivot with the latter around the axis y'y of the control member of rotation (27). Dispositif selon la revendication 1, caractérisé par le fait que l'organe rotatif d'entraînement (25) et l'organe rotatif de commande (27) sont constitués, respectivement, par deux roues dentées reliées cinématiquement et montées rotatives, respectivement, autour de l'axe x'x de rotation du rouleau (41) et l'axe y'y de pivotement du bras de support (15).Device according to claim 1, characterized in that the rotary drive member (25) and the rotary control member (27) consist, respectively, of two toothed wheels kinematically connected and rotatably mounted, respectively, around the axis x'x of rotation of the roller (41) and the axis y'y of pivoting of the support arm (15). Dispositif selon la revendication 2, caractérisé par le fait que les diamètres respectifs des deux roues dentées, respectivement, de commande (27) et d'entraînement (25), sont déterminés en fonction de la distance entre l'axe de pivotement y'y des bras (15, 16) et l'axe de rotation x'x du rouleau (41), de telle sorte que lesdites roues dentées (25, 27) engrènent directement l'une sur l'autre.Device according to claim 2, characterized in that the respective diameters of the two toothed wheels, respectively, for control (27) and drive (25), are determined as a function of the distance between the pivot axis y'y arms (15, 16) and the axis of rotation x'x of the roller (41), so that said toothed wheels (25, 27) mesh directly on each other. Dispositif selon la revendication 2, caractérisé par le fait que la roue dentée (25) d'entraînement en rotation du rouleau (41) est reliée à la roue dentée de commande (27) sur laquelle est appliqué le couple moteur, par une chaîne de transmission, notamment du type Galle.Device according to Claim 2, characterized in that the toothed wheel (25) for driving the roller in rotation (41) is connected to the control toothed wheel (27) on which the engine torque is applied, by a chain of transmission, especially of the Galle type. Dispositif selon la revendication 2, caractérisé par le fait qu'au moins un pignon (26) est monté fou sur le bras (15) entre les deux roues dentées (25, 27) de façon à engrener simultanément avec celles-ci.Device according to claim 2, characterized in that at least one pinion (26) is mounted idly on the arm (15) between the two toothed wheels (25, 27) so as to mesh simultaneously with these. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que le bras de support (15) de l'extrémité entraînée (19) du rouleau (41) a la forme d'un caisson creux à l'intérieur duquel sont placés l'organe de commande (27), l'organe d'entraînement (25) et les moyens de transmission (26).Device according to one of the claims above, characterized in that the support arm (15) of the driven end (19) of the roller (41) has the form of a hollow box inside which the control member (27) is placed , the drive member (25) and the transmission means (26). Dispositif selon l'une des revendications précédentes, caractérisé par le fait que l'organe rotatif d'entraînement (25) est fixé sur l'extrémité d'entraînement (19) du rouleau (41) par l'intermédiaire d'une liaison axialement coulissante susceptible de transmettre au rouleau (41) le couple de rotation avec possibilité de déplacement axial relatif dudit rouleau (41) par rapport au bras de support (15) portant l'organe d'entraînement (25).Device according to one of the preceding claims, characterized in that the rotary drive member (25) is fixed to the drive end (19) of the roller (41) via an axially connected link sliding capable of transmitting to the roller (41) the torque with possibility of relative axial displacement of said roller (41) relative to the support arm (15) carrying the drive member (25). Dispositif selon la revendication 7, caractérisé par le fait que la liaison coulissante comprend un arbre (20) centré sur l'axe du rouleau et lié en rotation avec celui-ci, à une extrémité (19), ledit arbre (20) étant muni, sur sa périphérie, de dents qui engrènent avec des rainures correspondantes ménagées sur la face interne d'un fourreau tubulaire (21) muni, sur sa périphérie, d'une partie dentée constituant l'organe d'entraînement en rotation (25).Device according to claim 7, characterized in that the sliding connection comprises a shaft (20) centered on the axis of the roller and linked in rotation with the latter, at one end (19), said shaft (20) being provided , on its periphery, of teeth which mesh with corresponding grooves formed on the internal face of a tubular sheath (21) provided, on its periphery, with a toothed part constituting the rotary drive member (25). Dispositif selon l'une des revendications précédentes, caractérisé par le fait que l'organe rotatif d'entraînement (25) est lié à l'extrémité correspondante du rouleau (41) par une liaison rotulante susceptible de transmettre au rouleau (41) le couple de rotation avec possibilité de désalignement des axes de rotation de l'organe d'entraînement (25) et du rouleau (41).Device according to one of the preceding claims, characterized in that the rotary drive member (25) is linked to the corresponding end of the roller (41) by a swiveling connection capable of transmitting the torque to the roller (41) rotation with possibility of misalignment of the axes of rotation of the drive member (25) and the roller (41). Dispositif selon la revendication 8, caractérisé par le fait que l'arbre (20) est relié à l'extrémité correspondante (19) du rouleau (41) par un moyen d'engrènement articulé comportant une partie sphérique (42) ménagée à l'extrémité de l'arbre (20) et logée dans un coussinet sphérique creux ménagé dans une crapaudine (43) fixée sur l'extrémité (19) du rouleau (41), la partie sphérique (42) étant munie de crabots (44) s'engageant dans des rainures correspondantes de la crapaudine (43) pour la solidarisation des deux pièces en rotation avec possibilité d'articulation.Device according to claim 8, characterized in that the shaft (20) is connected to the corresponding end (19) of the roller (41) by an articulated engagement means comprising a spherical part (42) formed at the end of the shaft (20) and housed in a hollow spherical bearing formed in a caudaudine (43) fixed on the end (19) of the roller (41), the spherical part (42) being provided with dogs (44) engaging in corresponding grooves of the crapaudine (43) for securing the two rotating parts with the possibility of articulation. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que l'extrémité (19') du rouleau (41), opposée à l'extrémité entraînée (19), est portée, avec possibilité d'articulation, par une tige (23) montée coulissante axialement sur l'extrémité (24) du second bras de support (16).Device according to one of the preceding claims, characterized in that the end (19 ') of the roller (41), opposite the driven end (19), is carried, with the possibility of articulation, by a rod ( 23) axially sliding mounted on the end (24) of the second support arm (16). Dispositif selon la revendication 11, caractérisé par le fait que la tige (23) est montée coulissante, sans possibilité de rotation, à l'intérieur d'un fourreau (24) fixé sur l'extrémité libre du second bras de support (16), et est munie, à son extrémité tournée vers le rouleau (41), d'un roulement rotulant (22) ayant une cage interne montée sur la tige (23) et une cage externe fixée sur l'extrémité correspondante (19') du rouleau (41).Device according to claim 11, characterized in that the rod (23) is slidably mounted, without the possibility of rotation, inside a sheath (24) fixed on the free end of the second support arm (16) , and is provided, at its end facing the roller (41), with a swiveling bearing (22) having an internal cage mounted on the rod (23) and an external cage fixed on the corresponding end (19 ') of the roller (41). Dispositif selon la revendication 10, caractérisé par le fait que la crapaudine (43) formant la partie externe de la liaison rotulante est fixée de façon amovible sur l'extrémité correspondante (19) du rouleau (41) de façon à pouvoir être libérée et écartée vers l'extérieur par coulissement de l'arbre (20) pour permettre le démontage du rouleau (41).Device according to claim 10, characterized in that the basket (43) forming the external part of the ball joint is detachably fixed on the corresponding end (19) of the roller (41) so that it can be released and spread apart outward by sliding the shaft (20) to allow disassembly of the roller (41). Dispositif selon la revendication 12, caractérisé par le fait que la cage externe du roulement rotulant (22) est fixée de façon amovible sur l'extrémité correspondante (19') du rouleau (41) de façon à pouvoir être libérée et écartée vers l'extérieur par coulissement de la tige (23) pour permettre le démontage du rouleau (41).Device according to claim 12, characterized in that the outer cage of the swivel bearing (22) is removably fixed on the corresponding end (19 ') of the roller (41) so that it can be released and spread towards the outside by sliding the rod (23) to allow disassembly of the roller (41). Dispositif selon l'une des revendications précédentes, caractérisé par le fait que le rouleau (41) est associé à des moyens de trancanage (52, 53) prenant appui directement sur une extrémité du rouleau (41), dans l'axe de celui-ci pour déterminer un déplacement alternatif du rouleau (41) parallèlement à son axe.Device according to one of the preceding claims, characterized in that the roller (41) is associated with cutting means (52, 53) bearing directly on one end of the roller (41), in the axis thereof. ci to determine an alternative movement of the roller (41) parallel to its axis. Dispositif selon l'une des revendications 11 et 12, caractérisé par le fait que l'extrémité de la tige (23) tournée du côté opposé au rouleau (41) forme un piston (52) monté coulissant axialement dans une douille (53) formant le corps d'un vérin fixé sur le fourreau (24) et alimenté en huile pour commander le déplacement axial du rouleau (41) en agissant sur le piston (52).Device according to one of claims 11 and 12, characterized in that the end of the rod (23) turned on the side opposite the roller (41) forms a piston (52) mounted to slide axially in a bushing (53) forming the body of a jack fixed on the sheath (24) and supplied with oil to control the axial movement of the roller (41) by acting on the piston (52). Dispositif selon l'une des revendications précédentes, caractérisé par le fait qu'il comprend des moyens de réglage de la distance entre l'axe x'x du rouleau (41) et l'axe du cylindre (4) dans la position d'application du rouleau (41).Device according to one of the preceding claims, characterized in that it comprises means for adjusting the distance between the axis x'x of the roller (41) and the axis of the cylinder (4) in the position of application of the roller (41). Dispositif selon la revendication 16, caractérisé par le fait que les moyens de réglage de la position d'application du rouleau (41) comprennent, à chaque extrémité du rouleau (41), une came (32) montée rotative sur l'extrémité correspondante du bras de support (15), respectivement (16), autour de l'axe de l'arbre (20), respectivement de la tige (23), et ayant un profil excentré par rapport audit axe, ladite came (32) prenant appui sur une butée (33) montée sur une partie correspondante de l'empoise (7), respectivement (7').Device according to Claim 16, characterized in that the means for adjusting the position of application of the roller (41) comprise, at each end of the roller (41), a cam (32) rotatably mounted on the corresponding end of the support arm (15), respectively (16), around the axis of the shaft (20), respectively of the rod (23), and having an eccentric profile relative to said axis, said cam (32) bearing on a stop (33) mounted on a corresponding part of the chock (7), respectively (7 '). Dispositif selon la revendication 18, caractérisé par le fait que la butée (33) est montée rotative autour d'un axe et présente un profil excentré par rapport à ce dernier de façon à permettre un réglage fin par rotation autour dudit axe.Device according to claim 18, characterized in that the stop (33) is rotatably mounted about an axis and has an eccentric profile relative to the latter so as to allow fine adjustment by rotation around said axis. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que le couple moteur est appliqué sur l'organe de commande (27) par un organe moteur (28) propre au dispositif et porté par l'organe fixe (3) de support du palier (7) du bras correspondant (15).Device according to one of the preceding claims, characterized in that the engine torque is applied to the control member (27) by a motor member (28) specific to the device and carried by the fixed member (3) supporting the bearing (7) of the corresponding arm (15). Laminoir comprenant un bâti en forme de cage ayant deux montants (1) entre lesquels sont logés au moins deux cylindres (4, 4') de laminage, au moins un (4) de ces cylindres étant muni d'un dispositif de nettoyage (11) selon l'une quelconque des revendications précédentes.Rolling mill comprising a cage-shaped frame having two uprights (1) between which are housed at least two rolling rolls (4, 4 '), at least one (4) of these rolls being provided with a cleaning device (11 ) according to any one of the preceding claims. Laminoir selon la revendication 21, caractérisé par le fait que, chaque cylindre de laminage (4, 4') étant porté, à ses extrémités, par une paire d'empoises (10) montées coulissantes, respectivement, dans les deux montants (1) de la cage, les paliers (7, 7') de pivotement des deux bras (15, 16) de support du rouleau (41) associé à un cylindre (4) sont fixés, respectivement, sur les deux empoises (10) dudit cylindre (4).Rolling mill according to claim 21, characterized in that, each rolling cylinder (4, 4 ') being carried, at its ends, by a pair of chocks (10) mounted to slide, respectively, in the two uprights (1) of the cage, the bearings (7, 7 ') for pivoting the two arms (15, 16) for supporting the roller (41) associated with a cylinder (4) are fixed, respectively, on the two chocks (10) of said cylinder (4). Laminoir selon l'une des revendications 21 et 22, caractérisé par le fait que le couple moteur de commande de la rotation de chaque rouleau de nettoyage (41) est appliqué à partir de chaque cylindre (4) à nettoyer, ce dernier étant relié cinématiquement à l'organe de commande (27) de la rotation dudit rouleau (41).Rolling mill according to one of claims 21 and 22, characterized in that the motor torque controlling the rotation of each cleaning roller (41) is applied from each cylinder (4) to be cleaned, the latter being kinematically connected to the control member (27) for the rotation of said roller (41).
EP94401572A 1993-07-28 1994-07-07 Device for cleaning a roll Expired - Lifetime EP0640412B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9309306 1993-07-28
FR9309306A FR2708218B1 (en) 1993-07-28 1993-07-28 Cylinder cleaning device.

Publications (2)

Publication Number Publication Date
EP0640412A1 true EP0640412A1 (en) 1995-03-01
EP0640412B1 EP0640412B1 (en) 1997-06-04

Family

ID=9449727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401572A Expired - Lifetime EP0640412B1 (en) 1993-07-28 1994-07-07 Device for cleaning a roll

Country Status (9)

Country Link
US (1) US5618224A (en)
EP (1) EP0640412B1 (en)
JP (1) JPH0780519A (en)
CN (1) CN1048432C (en)
CA (1) CA2128564C (en)
DE (1) DE69403586T2 (en)
ES (1) ES2104304T3 (en)
FR (1) FR2708218B1 (en)
GR (1) GR3024398T3 (en)

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EP0672470A1 (en) * 1994-03-18 1995-09-20 Sms Schloemann-Siemag Aktiengesellschaft Device for machining rolls during rolling
WO2002096581A1 (en) * 2001-05-28 2002-12-05 Abb Ab An apparatus and a method for cleaning a folding roller
US7788762B2 (en) * 2003-07-22 2010-09-07 Sms Siemag Aktiengesellschaft Method for shaping a roll cleaning brush, and a cleaning brush shaped according to the method
CN105057362A (en) * 2015-07-29 2015-11-18 山东钢铁股份有限公司 Online roller lateral wall polishing device for hot rolling of forklift frame channel steel
CN113670607A (en) * 2021-08-17 2021-11-19 宁波川原精工机械有限公司 Automobile power-assisted bearing inner ring detection equipment

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US5853318A (en) * 1996-10-31 1998-12-29 Consolidated Process Machinery, Inc. Roll surface grinder
US6234885B1 (en) * 1997-11-27 2001-05-22 Waldrich Siegen Werkzeugmaschinenfabrik Gmbh Roll grinding machine
JP3502000B2 (en) * 2000-01-25 2004-03-02 株式会社日立製作所 Online roll grinding method
KR100825643B1 (en) * 2001-07-31 2008-04-25 주식회사 포스코 Multipurpose worktable for roll
WO2008124914A1 (en) * 2007-04-12 2008-10-23 Superior Industrial Services Roll cleaning apparatus and method
CN103658073B (en) * 2011-12-13 2015-11-18 万向电动汽车有限公司 Lithium battery pole slice roller pressure roller cleaning mechanism
CN103357603B (en) * 2013-06-28 2015-03-25 首钢总公司 Roller scraping device for roller surface used in rolling technology of cold rolling strips
CN103386418A (en) * 2013-07-29 2013-11-13 江苏亨特宏业重工有限公司 Rear brush roll device for cold rolling mill
US9919399B2 (en) * 2013-09-17 2018-03-20 Nucor Corporation Roll polisher apparatus and method
CN104816211A (en) * 2015-04-03 2015-08-05 奇瑞汽车股份有限公司 Automatic deburring machine for oil passage holes of engine cylinder body
EP3108977B1 (en) * 2015-06-26 2018-03-28 DANIELI & C. OFFICINE MECCANICHE S.p.A. Rolling stand and corresponding method
CN104998839B (en) * 2015-06-29 2017-02-01 江苏大学 Wiping device for roller of solar back plate film
CN111014112B (en) * 2018-10-22 2022-07-12 苏州东研工业自动化设备有限公司 Oxide skin slag scraping control method used after cold roll processing
CN110722413B (en) * 2019-09-10 2021-04-06 广州佳优华信息科技有限公司 Bearing surface equipment of polishing for bearing processing
CN113305629B (en) * 2021-04-19 2022-07-29 滕州市冠球机械制造有限公司 Quick cleaning device of digit control machine tool bearing
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0672470A1 (en) * 1994-03-18 1995-09-20 Sms Schloemann-Siemag Aktiengesellschaft Device for machining rolls during rolling
US5738570A (en) * 1994-03-18 1998-04-14 Sms Schloemann-Siemag Aktiengesellschaft Arrangement for machining rolls during the rolling operation
WO2002096581A1 (en) * 2001-05-28 2002-12-05 Abb Ab An apparatus and a method for cleaning a folding roller
US7788762B2 (en) * 2003-07-22 2010-09-07 Sms Siemag Aktiengesellschaft Method for shaping a roll cleaning brush, and a cleaning brush shaped according to the method
CN105057362A (en) * 2015-07-29 2015-11-18 山东钢铁股份有限公司 Online roller lateral wall polishing device for hot rolling of forklift frame channel steel
CN113670607A (en) * 2021-08-17 2021-11-19 宁波川原精工机械有限公司 Automobile power-assisted bearing inner ring detection equipment
CN113670607B (en) * 2021-08-17 2023-11-21 宁波川原精工机械有限公司 Automobile booster bearing inner ring detection equipment

Also Published As

Publication number Publication date
DE69403586T2 (en) 1997-11-27
CA2128564A1 (en) 1995-01-29
JPH0780519A (en) 1995-03-28
ES2104304T3 (en) 1997-10-01
CN1048432C (en) 2000-01-19
GR3024398T3 (en) 1997-11-28
DE69403586D1 (en) 1997-07-10
FR2708218A1 (en) 1995-02-03
CN1102602A (en) 1995-05-17
US5618224A (en) 1997-04-08
EP0640412B1 (en) 1997-06-04
CA2128564C (en) 2004-12-21
FR2708218B1 (en) 1995-10-20

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