EP0765196B1 - Planeuse a rouleaux imbriques et procede de mise en uvre d'une telle planeuse - Google Patents
Planeuse a rouleaux imbriques et procede de mise en uvre d'une telle planeuse Download PDFInfo
- Publication number
- EP0765196B1 EP0765196B1 EP96913592A EP96913592A EP0765196B1 EP 0765196 B1 EP0765196 B1 EP 0765196B1 EP 96913592 A EP96913592 A EP 96913592A EP 96913592 A EP96913592 A EP 96913592A EP 0765196 B1 EP0765196 B1 EP 0765196B1
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- EP
- European Patent Office
- Prior art keywords
- rolls
- girder
- levelling
- jacks
- roll
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
Definitions
- the subject of the invention is a leveler with nested rollers. for a strip product according to the preamble of claim 1, more specificaly of metal strips and a method for adjusting the leveling effect performed on a strip using such a leveler according to the preamble of claim 16.
- multi-roller leveler For leveling flat products and, in in particular, metal strips such as laminated sheets, we often use a machine called multi-roller leveler comprising two series of rollers with parallel axes, respectively forming two leveling crews between which we do scroll the strip to be leveled in one direction longitudinal perpendicular to the rollers. These are offset longitudinally and vertically by so as to overlap by determining a wavy path of the tape which is thus subjected to the effects of traction-bending in alternating directions on both sides and others of an average plan of scrolling substantially horizontal.
- the whole is placed in a support cage fixed with two uprights apart and is associated with adjustment means making it possible to modify the nesting of the rollers to adjust the efficiency of the leveling according to needs and characteristics of the strip, in particular its dimensions and the nature of the metal.
- each leveling crew placed, respectively, on each side of the passage plane of the strip is generally supported on a cross member resistant forming a box spring and extending over all the grip of the leveling crew.
- the cross member constituting the upper box spring is mounted sliding vertically between the uprights of the support cage, its position being adjustable by mechanical or hydraulic actuators mounted at angles of the cage and allowing to adjust the level of the upper box spring and adjustable crew relative to the fixed lower crew. If needed, the actuators can be adjusted differently, from way to determine a forward or backward tilt or a swaying of one of the crews compared to the other, for example to reduce the overlapping of rollers in the direction of travel of the strip.
- each active roller is applied, through its rollers support, on an individual crosspiece taking support directly on the amounts of the cage.
- the bending of each cross member can be compensated for by means of an adjustable thickness shim inserted between each cross member and the support rollers, and consisting of two dishes with inclined faces forming corner, whose thickness can be increased, in the central part, by means of an eccentric, so as to maintain the straightness of the corresponding active roller.
- each roll of leveling is supported by a system with adjustable thickness corners, on a frame of support which supports itself on the angles of the bed base by fixed wedges placed in the axis of the four leveling cylinders for the level of the bed base.
- Two rows of flat cylinders distributed between said fixed wedges are interposed between the box spring and the chassis of each leveling crew, respectively on the entry and exit side of this one, the distribution of pressures between said flat cylinders being adjusted to compensate for the bending of the bed base under the effect of the applied forces to maintain the straightness of the support frame and, therefore leveling rollers which take support on it.
- This adjustment can be carried out under load and is therefore possible to maintain the flatness of the chassis and, therefore, the degree of nesting of the rollers, by adapting to variations in applied forces during operation.
- the inventor had the idea that would be desirable to have the possibility not only to take account of foreseeable deformations of the machine but also to distribute the load the leveling effect to correct the defects of flatness detected on the tape. Now in the machines used so far, it is simply intended to compensate for cedings to maintain parallelism rollers and the degree of nesting that is set to advance.
- the invention therefore aims to solve all the problems that have just been exposed thanks to simple and robust devices, likely to resist leveling forces extremely important, for example for leveling cold metal sheets and not allowing only to compensate for all cedings, but also to act precisely on the distribution of leveling stresses applied to the strip at level of each of the active rollers, this distribution can be changed even during tape scrolling.
- a leveler with nested rollers for a strip product moving next a longitudinal direction of travel including, inside a fixed cage, two roller leveling crews separated parallels, placed on either side of the strip with offset rollers defining a wavy path on either side of a mean plane of tape running, each leveling crew comprising a plurality of rotating rollers planing with parallel axes, each associated with at least a row of support rollers distributed over the whole its length, the assembly being mounted in a chassis of support and applied, on the side opposite the strip, on a resistant box spring resting on the fixed cage, characterized by the fact that the support frame at least one of the leveling crews comprises a frame-shaped part inside which are arranged, one next to the other, a plurality of transverse beams in number equal to that of leveling rollers, slidably mounted in said frame, independently of each other, each along a clamping plane passing through the axis of the corresponding leveling roller, each active roller leveling bearing
- each leveling roller is rotatably mounted at its ends on two bearings centering connected respectively to the ends correspondents of the associated beam, in a way allowing a limited relative displacement of said roller bearings in relation to the beam under the action of said hydraulic cylinders.
- the leveler includes means for adjusting the position of each of the cylinders interposed between the box spring and each cross beam for individual adjustment level profile of at least some of the rollers leveling assets relative to the mean plane of tape scrolling.
- the cylinders can also be set simultaneously, either to determine individually the level of each of the rollers active, or to act globally on nesting rollers.
- the machine includes means for adjusting the pressure of each of the cylinders interposed between the box spring and each cross beam for individual adjustment of the clamping force supported by at least some leveling rollers.
- each transverse beam has a width at most equal to the distance between the axes of the leveling rollers and the support cylinders of each beam on the bed base each have a elongated section, each cylinder having a piston whose width across the beam does not not significantly exceed the width thereof and whose length is determined to define a useful section of the cylinder chamber compatible with the support effort to exercise taking into account the number of cylinders acting on each beam.
- each transverse beam takes support on the box spring via three cylinders, respectively a central cylinder and two cylinders lateral, said jacks being associated with a means of adjusting the position of the central cylinder for the nesting adjustment of the corresponding roller and means for correcting the relative positions of the two other cylinders to control the roll profile and its variation under the effect of the applied forces.
- the support cylinders are provided in at least one piece of intermediate support interposed between the box spring and the set of transverse beams, and in which are housed the cylinders, the latter being arranged in several rows parallel to the beams transverse.
- the cylinder bodies placed at the same level on the different cross beams are gathered in a single piece spanning all of the beams and in which recesses are provided constituting the chambers of the jacks and in which sliding pistons are supported on the corresponding beam.
- the support frame includes a rectangular frame surrounding all of the rollers and associated with a plurality of guide partitions separated one of the other so as to limit flat spaces in which are housed the transverse beams, each being provided, at its two ends, with means of support on the frame with possibility of sliding.
- the entire support frame is closed, on the side opposite the roller, by a plate covering the set of transverse beams so as to form a housing, said plate being provided, at the right of each beam, of a plurality of passage orifices pistons of the cylinders interposed between each beam and the box spring. The whole thus forms a cassette which can be removed from the leveler by translation in a direction parallel to the axes of the rollers.
- a method of adjusting the leveling effect carried out on a strip using a roller leveler nested according to the invention is defined in claim 16.
- the position is adjusted of one of the box springs relative to the other for determine a baseline of the set of the leveling crew relative to each other and, each leveling roller being mounted, with its rollers support, on a transverse beam mounted sliding perpendicular to the passage plane of the band and bearing on the corresponding box spring through at least two cylinders hydraulic levels are precisely determined relative of at least one group of leveling rollers relative to the reference level, by setting individual positions of the support cylinders corresponding to each of the rollers, so that define a specific degree of nesting of each of the rollers of said group, the pressures applied to each of said cylinders being limited to a value of safety corresponding to a maximum leveling effort cashed by each of the leveling rollers.
- each support beam of a leveling roller is associated with at least three support cylinders, respectively a central cylinder and two side cylinders.
- the leveler includes an odd number n of nested rollers, respectively (1, 3, 5 .... n) on one of the crews and (2, 4, 6 ... n-1) on the other crew, we adjust position the cylinders corresponding to at least two rolls, respectively (p) and (q) of each of the two crews, placed respectively above and in below the strip and the pressure is adjusted cylinders corresponding to the two pairs of rollers, respectively (p-1, p + 1) and (q-1, q + 1) which frame each of said rollers (p, q) adjusted in position so as to determine at least two curvatures in directions reverse on said rollers (p and q), the locations of these in each of the two crews and their relative levels compared to reference level, as well as the pressures applied to the rollers that frame them, being determined based on the characteristics of the strip to be leveled so as to achieve the leveling effect wish.
- Figure 1 is a general view of an embodiment of a leveler according to the invention, in partial section along a plane transverse to the direction of travel.
- FIG. 2 is an enlarged view, of the leveler, in longitudinal section, along a plane median parallel to the direction of travel.
- Figure 3 is a detailed diagram, in perspective, with partial snatch.
- Figure 4 is an overall circuit diagram actuator control.
- Figure 5 shows schematically an arrangement especially leveling rollers.
- FIGs 1 and 2 there is shown the whole of a leveler comprising a fixed cage 1 consisting of two spaced apart uprights 11, 11 'connected by spacers 12 and fixed to their base 13 on a foundation block 14.
- the lower cross-member 3 ' is fixed and rests directly on the base 13 of the cage 1.
- the upper crosspiece 3 is adjustable in height and can slide vertically under the action of four hydraulic cylinders or mechanical 15 provided at the upper part of the uprights 11, 11 '.
- Each of the crosspieces 3, 3 ' is made so particularly rigid and forms a resistant box spring defining a substantially planar bearing face 32, 32 '.
- two box springs 3, 3 ' are arranged two planing crews, respectively upper 2 and lower 2 ', placed on either side of a plane P of passage of the strip to be leveled A and bearing on the opposite side, on the bearing faces 32, 32 ' respectively of the upper box spring 3 and the box spring lower 3 '.
- Each leveling crew 2, 2 ′ comprises a plurality of active rollers 21 spaced from each other others and whose axes are perpendicular to the direction x'-x of movement of the product to be leveled.
- Each active roller 21 is rotatably mounted at its two ends, on two bearings 23 defining an axis of rotation 20 of the roller and rests on rollers or support rollers 22, the assembly being mounted in a support frame which is applied against the box spring 3.
- the upper crew 2 includes four active rollers 21 each associated with two rows of support rollers 22 centered respectively on two axes symmetrically spaced on either side of a vertical plane of symmetry P1 passing through the axis of the corresponding active roller 21.
- the lower 2 'unit includes five rollers active 21 'each associated with two rows of rollers support 22 'and whose axes are placed in vertical planes of symmetry P'1 which are offset by one half step with respect to the P1 planes of symmetry upper rollers 21, so that, so known, a metal strip passing along the longitudinal direction x'-x follows a wavy path, from on either side of a mean plane of travel P between the two rows of rollers 21, 21 ', the amplitude of the undulations depending on the degree of nesting of rollers 21, 21 '.
- the support chassis 4 of each crew of leveling is constituted by a hollow piece 40 in the form frame in which several beams are housed transverse 5 arranged one beside the other at inside the frame 40 and each supporting one of the active rollers 21 and its support rollers 22.
- the hollow part 40 therefore forms a section frame rectangular surrounding all the beams transverse 5 which can slide individually inside the frame 40, with the rollers and the pebbles.
- the chassis 4 constitutes a form box rectangular bounded by two long sides 42 parallel to the planes of symmetry P1 and two small sides 43 perpendicular to said planes, and between which extend from the intermediate partitions 41 which limit, inside the frame 40, several elongated housings 45 in which are threaded, respectively, the transverse beams 5.
- Each beam 5 is centered on a vertical plane of symmetry P1 passing through the axis of the corresponding active roller 21 and is provided at its two ends with projection 53, 53 'in which are housed, respectively, the two bearings 23, 23 'of the roller active 21.
- each beam 5 is supported, at each of its two ends, by jacks 52, bearing on corresponding bearing parts on each lateral side 43 of the frame 4.
- each active roller 21 is supported on two rows of support rollers 22a, 22b which are mounted rotating on intermediate supports 54 fixed on the lower part of the beam 5, around axes alternately discarded on either side of the plane vertical symmetry P1 of the beam.
- each beam 5 has a rectangular cross section whose width is of the same order as the diameter of the roller 21 corresponding to and at most equal to the center distance of rollers and whose height is at least equal to the width and preferably much greater than this one.
- each beam 5 forms, with the corresponding active roller 21 and its rollers support 22a, 22b, a relatively rigid assembly, suspended from frame 4 by jacks 52, 52 'and which can slide vertically inside its housing 45, along the plane of symmetry P1 which therefore constitutes a clamping plane of the active roller 21.
- each beam 5 with its active roller and its support rollers can slide individually in its housing without interference with the movement of sliding neighboring beams.
- each support beam 5 takes support on the bed base 3 independently of the beams neighbors through a row of several cylinders 6 which are interposed between each beam 5 and the application face 32 of the bed base 3 and distributed over the entire length of the beam 5.
- the jacks 6 are housed in a room 33 in mechanically welded construction, which covers the entire face application 32 of the bed base 3 and in which the cylinders 6 are arranged in several rows corresponding respectively to each of the beams transverse 5, each cylinder 6 comprising a piston 62 and a body 61 housed in the intermediate part 33.
- each cylinder 6 preferably uses cylinders with a cross-section elongated, the piston 62 of each cylinder 6 having a width slightly less than that of beam 5, but covering, in the longitudinal direction of the beam 5, a much greater length.
- the piston and the chamber corresponding 64 have an elongated section having, from preferably circular rounded ends of so as to have an oblong shape, as we have shown schematically in Figure 3.
- each cylinder we can thus considerably increase the useful section of each cylinder and obtain a force sufficient using only a reduced number of cylinders per beam, the length of each cylinder being determined to define a useful section of the cylinder chamber compatible with the bearing force at exercise given the number of cylinders acting on each beam.
- each beam 5 can be associated with only three cylinders, respectively a central cylinder 6a centered in the plane median of the leveler and two lateral cylinders 6b and 6c.
- the bodies 61 of all the jacks placed respectively on the same level on each of the beams parallels 5 can be grouped in one room single 61 ', which spans the entire width of the box spring 3 in the same groove-shaped recess 34.
- this room 61 ' are arranged several bores centered respectively in the median planes P1 of the different beams 5 and each constituting the chamber 64 of a jack whose piston 62 is supported on the upper face 55 of the beam 5 corresponding.
- circuits oil supply and outlet are arranged in the room 61 '.
- each cylinder 6 is associated with a sensor. position 63 housed in room 61 '.
- the support beams 5 of the active rollers 21 may have a height significantly greater than their width, which gives them relatively high rigidity and allows distribution over the entire length of the active roller, the effects of adjustment cylinders, without hindering the sliding of all.
- Each beam 5 is indeed, perfectly laterally held in the housing 45 corresponding to frame 4 and resists elastically and without risk of buckling to the actions exerted by the cylinders 6, the effects of which on active rollers 21 can therefore be extremely precise.
- the lower leveling crew 2 'taking support on the lower base 3 ' is made in a way completely analogous, but is normally fixed in height while the general level of the box spring upper 3 with upper leveling crew 2 can be adjusted in height, by means of jacks 15.
- the frame 4 is closed, at its part upper, by a plate 43 which covers the assembly beams 5 and in which are provided, at right of each beam 5, rows of orifices 44 of passage of pistons 62.
- the frame 4 forms a housing containing all the beams 5 with the rollers 21 and their support rollers 22 which can advantageously constitute a removable cassette.
- This is applied and removably attached against the box spring 3 by clamps 35 actuated by jacks 36 bearing on the base 3, the upper plate 43 bearing on the face application 32 of the bed base 3, through the parts 61 'constituting the bodies of the jacks 6.
- each beam 5 is supported at its two ends on the sides 43 of the frame 4 by means of jacks 52, 52 '. These the latter are adjusted so as to support the weight of the beam 5 with the support rollers 22 and the active roller 21 corresponding and maintain the beam 5 applied against the corresponding cylinders 6, without opposing the sliding of the beam under the effect of said cylinders.
- Each cassette constituted by frame 4, and the set of beams 5 and rollers 21 and rollers 22 associates, can be removed from the machine by a displacement parallel to the axes of the rollers and beams.
- the lower cassette 4 ' is provided rollers 45 which can roll on rails 16 of adjustable height (figure 2).
- the two leveling crews can be removed at the same time, the upper crew 2 resting on the crew lower 2 'by means of stops not represented.
- the invention provides two means of adjusting the spacing of the crews of leveling and nesting of rollers.
- the four jacks 15 allow define a reference level for the upper bed base 3 and the upper leveling crew 2 with respect to a lower level of the leveling crew 2 'defined by the lower base 3'.
- each cylinder 6 is associated with a position sensor 63 and it is possible, first of all, to adjust in the same way and simultaneously all the cylinders corresponding to a support beam 5 to control the level of the corresponding active roller 21, for example, for vary the nesting rate and the amplitude of ripples, from the entry to the exit of the leveler.
- Each cylinder 6 being associated with a position 63, it is possible, from the information given by the mathematical model, from adjust the respective cylinder positions so that correct the bending of the corresponding roller 21.
- the position adjustment of the side cylinders 6b, 6c used to determine the level 21 corresponding active roller means and model mathematics determines, according to the efforts applied and all the parameters of installation, foreseeable transfer of the part corresponding to the box spring 3 and, consequently, the position of the central cylinder 6a enabling the straightness of the corresponding roller 21.
- FIG. 4 there is shown diagrammatically, the command and control circuits of a machine leveling allowing such adjustments.
- Each leveling roller being associated with three oblong cylinders 6, the machine therefore comprises in total twenty-seven cylinders that are powered by a circuit hydraulic 7 comprising, conventionally, a pump 70, a tank 71 and twenty-seven servo valves 72 each associated with one of the jacks 6.
- the four support cylinders 15 of the upper box spring 3 are also supplied with oil, each via a servo valve 73.
- figure 4 represents only two leveling rollers, respectively upper 21 and lower 21 ', each associated with a support beam 5, 5 'resting on the bed base correspondent 3, 3 'through a series of three cylinders 6, 6 ', only the servo valves 72, 72' corresponding to these six cylinders being represented with the corresponding circuits.
- the hydraulic circuits which have been represented only very schematically, have all the usual organs for a normal operation, including limiters pressure mounted on the circuits corresponding to each row of cylinders. Therefore, the effort of leveling collected by each of the rollers, which corresponds to the sum of the pressures applied to the matching cylinders can be limited to a value of security, which avoids all risks of deterioration of the machine due, for example, to too uneven distribution of efforts between rollers.
- Position control and of the pressure of each of the twenty-seven cylinders 6, 6 ' is ensured by an automatic regulation system 8 conventionally connected by a network of communication 9, to various control devices and such as a sequential controller 91 of control of successive planer operations, a auxiliary controller 92, and various interface elements 93, 94, allowing, in particular to the operator to determine or modify possibly the machine setting parameters and monitor the operation of it and the regulation system to intervene in the event of need.
- Each support cylinder 6 of a beam 5 is associated, as we have seen, with a position sensor 63 and to a pressure sensor 65 which emits signals representative of the position of the piston 62 and of the pressure in the chamber 64 of the jack 6. These signals are applied to the corresponding inputs of the regulation system 8. This also receives signals corresponding, respectively, to the position and pressure of each support cylinder 15 of the box spring which are supplied by sensors of position 18 and pressure sensors 18 'associated with each of the cylinders 15.
- the system regulator 8 After processing this information, the system regulator 8 issues correction orders which are applied to the control solenoids servo valves 72, 72 'and 73.
- the regulation system 8 comprises a number of control units and regulation and, in particular, an automatic transfer compensation 81 comprising two parts 81a, 81b assigned, respectively, to the upper box springs 3 and below 3 ', a servo controller of position 82, a profile servo controller straight 83 and a control machine of horizontality 84, which are associated with each of the 5, 5 'beams.
- an automatic transfer compensation 81 comprising two parts 81a, 81b assigned, respectively, to the upper box springs 3 and below 3 ', a servo controller of position 82, a profile servo controller straight 83 and a control machine of horizontality 84, which are associated with each of the 5, 5 'beams.
- Figure 4 shows only the cylinder control loops of a beam 5 for supporting an upper cylinder 21 but the same circuits are associated with the cylinders corresponding to all the other rollers.
- the regulatory system has to maintain the central position of each roller to its set value and control horizontality and straightness of the generator active on contact with the strip to be leveled.
- horizontality you have to hear the basic level defined by the fixed bottom base 3 ', which may not not be strictly horizontal, due to cedings and possible deformations of the different supports.
- the basic level therefore corresponds, empty, to the travel plane P defined by the rollers 21 'of the lower leveling crew 2 '.
- the position of bed base 3 adjusted by means of the jacks 15 makes it possible to define a higher crew reference level 2 strictly parallel to the basic level of the lower crew 2 'and in relation to which will be made the nesting adjustments of the rollers the objective being to make a sheet metal perfectly rectangular section maintaining the straightness and parallelism of active generators rolls of the two crews, respectively upper and lower.
- the sensors 63 of each of the cylinders 6 make it possible to know, at all times, the position of the piston 62 relative to the body 61 of the cylinder but, due to the elastic deformations of the mechanical elements under the action of the different forces, the measured values do not do not directly represent the position of the active generators of the corresponding leveling roller 21 and must therefore be corrected by the yielding compensation machine 81, taking account of the width L of the product in the elasticity matrix 810.
- the machine compensation 81 multiplies the leveling force measurement vector F, corresponding to the sum of the pressures of the three jacks measured by the sensors 64, by the elasticity matrix 810 of the mechanical assembly to obtain the correction to be made to the desired position X 0 , corresponding to the leveling force at the level of the roller considered, which is determined by the mathematical model of the regulation system 8.
- the controller 81a thus forms a signal corresponding to the effective position X of the active generator of the roller in question, which is displayed on the regulator 82.
- the latter determines the difference between the effective position X to be ensured and the position measured by the corresponding sensor 63 and emits a signal for correcting the position setpoint of the central cylinder 6a which is displayed on the corresponding servo-valve 72a so as to obtain the correct position X of the roller 21 at the center of the latter.
- the horizontality control machine 84 includes a comparator 86 which receives, on its two inputs 84b, 84c the signals emitted by the sensors of position 63b, 63c, corresponding to the positions of the two cylinders 6b, 6c relative to the reference level defined by the upper base 3.
- the gap between these two signals is sent in addition or in less on orders for servo valves 72b, 72c associated respectively with the two lateral jacks 6b, 6c so as to permanently reduce this difference to zero.
- Signals representative of pressures in the three cylinders 6a, 6b, 6c measured by the sensors 65 correspondents are displayed at the entry of the rectilinear profile servo controller 83 which includes a regulator 87 of type P.I.D. associated to 88 comparators to ensure the distribution between the pressures of the three cylinders such that in the event that the force of metal reaction is uniform across the width, the active generator of the roller 21 is rectilinear.
- the relationship between the force at the center and the forces side is a function of the width L of the sheet glided.
- the difference between the sum of the lateral forces and the corresponding setpoint is formatted by the P.I.D. 87 which emits a correction signal acting simultaneously on the lateral servo valves 72b, 72c and, in the opposite direction on the servo valve central 72a, so as to cancel this difference.
- control in position and in pressure of the support cylinders of each of the rollers allows to determine an optimal wavy profile by making the bends necessary for good leveling operation.
- the cylinders corresponding to all rollers can be adjusted in position so as to define, on the rollers successive, decreasing curvatures from entry to the exit of the leveler, the pressures in the cylinders being adjusted so as to limit the effort supported by each of the rollers.
- rollers having, for example, a position fixed determined by adjustment in position of their cylinders while other rollers can adapt to the undulations defined by the fixed rollers in exerting on the sheet an effort determined by simple pressure adjustment of the corresponding cylinders.
- Figure 5 shows schematically a nine roller leveler in which only the cylinders corresponding to the rollers R1, R2, R5, R8 and R9 are set in position, the cylinders of the other rollers R3, R4, R6, R7 being simply adjusted in pressure so as to apply to sheet metal a determined effort but without fixing the position of the corresponding roller.
- each of the rollers R2, R5, R8 of fixed position is framed by two rollers placed the other side of the band and set only in pressure in order to exert on the band, on the part and on the other side of the fixed roller, forces which determine a certain curvature depending on the characteristics tape and applied pressures.
- Each group of three rollers determines a curvature, one way or the other, on the roller fixed corresponding and this results in a ripple at three alternating curvatures whose profile depends on the web stiffness, fixed roller positions R2, R5, R8 and pressures applied by others rollers.
- the transition from a curvature to the next depends on the characteristics of the tape and it note that the curvatures are not necessarily centered on the fixed rollers.
- the mathematical model can, in function of the different parameters and in particular the nature of the metal and the dimensions of the strip, define an optimal wave profile which is not necessarily related to the number of rollers and their the regulatory system determining the positions and pressures to be assigned to the different rolls according to the rank of each of them for get the desired profile.
- An essential advantage of the invention therefore lies in the fact that the profile of the undulations can be freely modified by simply adjusting the levels and the pressures applied to all the rollers.
- each beam could be associated with only two cylinders allowing to adjust the level and possible inclination of the roller corresponding asset. Conversely, we could use more cylinders, especially if gives them a circular section.
- section cylinders elongated, especially oblong has the advantage essential to obtain the largest active surface and therefore the maximum effort for a number minimum of cylinders distributed over the entire surface of the beam facing the box spring.
- the invention is, moreover, applicable to all types of multi-roller levelers, crews leveling may include a number more or less large of rollers. Besides, these should not necessarily be associated each with a beam of support and adjustment cylinders, some of rollers can be fixed. Such a solution is not covered by the claims.
- the installation can be adapted to formats and characteristics of the sheets, and able to perform all necessary corrections.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Advancing Webs (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
Claims (20)
- Planeuse à rouleaux imbriqués pour un produit en bande se déplaçant suivant une direction longitudinale de défilement (x' x), comprenant, à l'intérieur d'une cage fixe (1), deux équipages de planage (2, 2') à rouleaux parallèles écartés, placés de part et d'autre de la bande avec un décalage des rouleaux définissant un trajet ondulé de part et d'autre d'un plan moyen de défilement de la bande, chaque équipage de planage (2) comprenant une pluralité de rouleaux rotatifs de planage (21) à axes parallèles, associés, chacun à des rouleaux de soutien (22) répartis en au moins une rangée sur toute sa longueur, l'ensemble étant monté dans un châssis de support (4) et appliqué, du côté opposé à la bande, sur un sommier résistant (3) prenant appui sur la cage fixe (1), caractérisée par le fait que le châssis (4) de support d'au moins l'un des équipages de planage (2) comprend une pièce (40) en forme de cadre à l'intérieur duquel sont disposées, l'une à côté de l'autre, une pluralité de poutres transversales (5) en nombre égal à celui des rouleaux de planage (21), montées coulissantes dans ledit cadre (40), indépendamment l'une de l'autre, chacune suivant un plan de serrage (P1) passant par l'axe du rouleau de planage (21) correspondant, chaque rouleau actif de planage (21) prenant appui, sur toute sa longueur, sur ladite poutre par l'intermédiaire de ses rouleaux de soutien (22) et chaque poutre (5) prenant appui individuellement sur le sommier (3), par l'intermédiaire d'au moins deux vérins hydrauliques(6) interposés entre le sommier (3) et la poutre (5) et répartis sur la longueur de celle-ci.
- Planeuse à rouleaux selon la revendications 1, caractérisée par le fait que chaque rouleau de planage (21) est monté rotatif, à ses extrémités, sur deux paliers de centrage (23) reliés respectivement aux extrémités, correspondantes de la poutre associée (5) d'une façon permettant un déplacement relatif limité desdits paliers (23) du rouleau (21) par rapport à la poutre (5) sous l'action desdits vérins hydrauliques (6).
- Planeuse à rouleaux selon l'une des revendications 1 et 2, caractérisée par le fait qu'elle comprend des moyens de réglage en position de chacun des vérins (6) interposés entre le sommier (3) et chaque poutre transversale (5), pour le réglage individuel du profil et du niveau d'au moins certains des rouleaux de planage (4) par rapport au plan moyen de défilement de la bande.
- Planeuse à rouleaux selon l'une des revendications 1, 2 et 3, caractérisée par le fait qu'elle comprend des moyens de réglage en pression de chacun des vérins (6) interposés entre le sommier (3) et chaque poutre transversale (5) pour le réglage individuel de l'effort de serrage supporté par au moins certains des rouleaux de planage (4).
- Planeuse à rouleaux selon l'une des revendications précédentes, caractérisée par le fait que chaque poutre transversale (5) présente une largeur au plus égale à la distance entre les axes des rouleaux de planage (21) et que les vérins d'appui (6) de chaque poutre (5) sur le sommier (3) présentent chacun une section allongée, chaque vérin (6) ayant un piston (62) dont la largeur, dans le sens transversal à la poutre (5), ne dépasse pas sensiblement la largeur de celle-ci, et dont la longueur est déterminée pour définir une section utile de la chambre (64) du vérin (6) compatible avec l'effort d'appui à exercer compte-tenu du nombre de vérins associés à la poutre (5).
- Planeuse à rouleaux selon la revendication 5, caractérisée par le fait que les vérins (6) présentent une section oblongue à extrémités arrondies.
- Planeuse à rouleaux selon l'une des revendications 5 et 6, caractérisée par le fait que chaque poutre transversale (5) prend appui sur le sommier (3) par l'intermédiaire d'au moins trois vérins (6), à section allongée respectivement un vérin central et deux vérins latéraux répartis sur la longueur de la poutre.
- Planeuse à rouleaux selon l'une des revendications précédentes, caractérisée par le fait que les vérins d'appui (6) sont montés dans au moins une pièce de support intermédiaire (33) interposée entre le sommier (3) et les poutres transversales (5).
- Planeuse à rouleaux selon la revendication 8, caractérisée par le fait que la pièce (33) de support des vérins (6) s'étend sur toute la surface de l'équipage de planage (2) et est munie de plusieurs rangées d'évidements (34) correspondant chacune à une poutre transversale (5), et limitant chacun un corps (61) de vérin (6) dans lequel est monté coulissant un piston (62) prenant appui sur la poutre transversale (5).
- Planeuse à rouleaux selon la revendication 9, caractérisée par le fait que les corps (61) des vérins (6) placés au même niveau sur les différentes poutres transversales (5) sont rassemblées dans une pièce unique (61') s'étendant sur l'ensemble des poutres (5) et dans laquelle est ménagée une série d'évidements (34) centrés respectivement sur lesdites poutres (5) et constituant chacun le corps (61) d'un vérin (6) dont le piston (62) prend appui sur la poutre correspondante (5).
- Planeuse à rouleaux selon l'une des revendications précédentes, caractérisée par le fait que le châssis de support (4) comprend un cadre rectangulaire (40) entourant l'ensemble des rouleaux (21, 22) et associé à une pluralité de cloisons transversales de guidage (41) parallèles aux axes des rouleaux (21) et écartées l'une de l'autre de façon à limiter des évidements allongés (45) en nombre égal à celui des rouleaux et dans lesquels sont logées les poutres transversales (5), chacune étant munie, à ses deux extrémités, de moyens (52, 52') d'appui sur le cadre avec possibilité de coulissement.
- Planeuse à rouleaux selon la revendication 11, caractérisée par le fait que chaque poutre transversale (5) a une section droite rectangulaire ayant une hauteur au moins égale à sa largeur, de façon à présenter une inertie suffisante pour que ladite poutre (5) constitue, avec le rouleau actif (21) et les rouleaux de soutien correspondants, un ensemble semi-rigide susceptible de se déformer en fonction de la répartition des efforts appliqués sur la longueur du rouleau actif (21) associé, avec possibilité de coulissement à l'intérieur de l'évidement (45) correspondant.
- Planeuse à rouleaux selon l'une des revendications précédentes, caractérisée par le fait que le châssis de support (4) est fermé, du côté opposé aux rouleaux, par une plaque (43) recouvrant l'ensemble des poutres transversales (5) et reliant les côtés du cadre (40) de façon à former un boítier, ladite plaque (43) étant munie, au droit de chaque poutre (5), d'une pluralité d'orifices (44) de passage des pistons (62) des vérins (6) interposés entre chaque poutre (5) et le sommier (3).
- Planeuse à rouleaux selon l'une des revendications précédentes, caractérisée par le fait que l'ensemble formé par la pièce creuse formant cadre (40) et les poutres transversales (5) avec les rouleaux actifs (21) et les rouleaux de soutien (22) associés, forme une cassette qui peut être retirée de la planeuse par déplacement parallèlement aux axes des rouleaux (21).
- Planeuse à rouleaux selon la revendication 14, caractérisée par le fait que chaque cassette est appliquée, en position de travail, sur le sommier (3) correspondant, par des organes amovibles de clamage (36) prenant appui sur ledit sommier (3).
- Procédé de réglage de l'effet de planage effectué sur une bande se déplaçant suivant une direction longitudinale de défilement x'x dans une planeuse à rouleaux imbriqués selon l'une des revendications précédentes, caractérisé par le fait que l'on règle la position de l'un des sommiers (3) par rapport à l'autre (3') pour déterminer un niveau de référence de l'ensemble de l'équipage de planage (2) par rapport à l'autre (2') et que, chaque rouleau de planage (21) étant monté, avec ses rouleaux d'appui (22), sur une poutre transversale (5) montée coulissable perpendiculairement au plan de passage de la bande et prenant appui sur le sommier (3) correspondant par l'intermédiaire d'au moins deux vérins hydrauliques (6a, 6b), on détermine avec précision les niveaux relatifs d'au moins un groupe de rouleaux de planage par rapport au niveau de référence, par réglage individuel des positions des vérins d'appui (6) des rangées de vérins correspondant, respectivement, aux rouleaux (R1, R2...) dudit groupe, de façon à adapter individuellement le niveau et le degré d'imbrication de chacun desdits rouleaux (R1, R2...), à une répartition déterminée de l'effort de planage sur la bande, les pressions appliquées sur chacun desdits vérins (6) étant limitées à une valeur de sécurité correspondant à un effort maximal de planage encaissé par chacun des rouleaux de planage (21).
- Procédé selon la revendication 16, caractérisé par le fait que l'on définit un profil d'ondulation comprenant une suite de courbures alternées de façon à réaliser un effet de planage souhaité, compte tenu des caractéristiques physiques et dimensionnelles de la bande et que l'on adapte individuellement les niveaux d'au moins certains des rouleaux de planage des deux équipages (R1, R2, R5...), par réglage des positions des vérins d'appui (6) correspondants, de telle sorte que les génératrices actives desdits rouleaux (R1, R2, R5...) encadrent le trajet de la bande en définissant le profil d'ondulation préalablement défini.
- Procédé selon l'une des revendications 16 et 17, caractérisé par le fait que, chaque poutre (5) étant associée à au moins trois vérins d'appui (6), respectivement un vérin central (6a) et deux vérins latéraux (6b, 6c), on contrôle le niveau de chaque rouleau de planage (21) correspondant à un degré d'imbrication déterminé par réglage en position du vérin central (6a) de la poutre (5) correspondante, en fonction des cédages prévisibles des différentes parties de la cage, compte tenu des efforts appliqués, on détermine l'écart entre les positions mesurées des deux vérins latéraux (6b, 6c) d'appui de ladite poutre (5) et l'on corrige les dites positions pour ramener l'écart mesuré à un écart de référence correspondant au parallélisme du rouleau de planage (21) avec le niveau de référence.
- Procédé selon la revendication 18, caractérisé par le fait que l'on répartit les pressions entre les trois vérins (6a, 6b, 6c) de chaque poutre (5) en tenant compte de leurs positions relatives, de façon que la génératrice active du rouleau de planage (21) considéré, se trouvant au contact du produit, soit maintenue rectiligne.
- Procédé selon l'une des revendications 16 à 19, caractérisé en ce que, la planeuse comprenant un nombre (n) impair de rouleaux imbriqués, respectivement (1, 3, 5....n) sur l'un des équipages (2') et (2, 4, 6...n-1) sur l'autre équipage (2), on règle en position les vérins correspondant à au moins deux rouleaux, respectivement (p) et (q) de chacun des deux équipages (2, 2'), placés respectivement au dessus et en dessous de la bande et l'on règle au moins en pression les vérins correspondant aux deux paires de rouleaux, respectivement (p-1, p+1) et (q-1, q+1) qui encadrent chacun desdits rouleaux (p) et (q) réglés en position de façon à déterminer au moins deux courbures en des sens inverses sur lesdits rouleaux (p et q), les emplacements de ces derniers dans chacun des deux équipages (2,2') et leurs niveaux relatifs par rapport au niveau de référence, ainsi que les pressions appliquées sur les rouleaux qui les encadrent, étant déterminés en fonction des caractéristiques de la bande à planer de façon à réaliser l'effet de planage souhaité.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9504557 | 1995-04-14 | ||
FR9504557A FR2732912A1 (fr) | 1995-04-14 | 1995-04-14 | Planeuse a rouleaux imbriques |
PCT/FR1996/000573 WO1996032212A1 (fr) | 1995-04-14 | 1996-04-15 | Planeuse a rouleaux imbriques et procede de mise en ×uvre d'une telle planeuse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0765196A1 EP0765196A1 (fr) | 1997-04-02 |
EP0765196B1 true EP0765196B1 (fr) | 2001-11-07 |
Family
ID=9478161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96913592A Expired - Lifetime EP0765196B1 (fr) | 1995-04-14 | 1996-04-15 | Planeuse a rouleaux imbriques et procede de mise en uvre d'une telle planeuse |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0765196B1 (fr) |
JP (1) | JPH10501470A (fr) |
KR (1) | KR970703823A (fr) |
CN (1) | CN1068534C (fr) |
CA (1) | CA2192828C (fr) |
CZ (1) | CZ292110B6 (fr) |
DE (1) | DE69616716T2 (fr) |
FR (1) | FR2732912A1 (fr) |
WO (1) | WO1996032212A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013135688A1 (fr) | 2012-03-15 | 2013-09-19 | Sms Siemag Ag | Dispositif servant à redresser une bande métallique |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19705457B4 (de) * | 1997-02-13 | 2006-01-12 | Sms Demag Ag | Blechrichtmaschine |
FR2851943B1 (fr) * | 2003-03-07 | 2005-04-08 | Dispositif et procede de calibrage d'une planeuse a rouleaux par barre instrumentee | |
FR2860738B1 (fr) * | 2003-10-13 | 2006-02-03 | Vai Clecim | Procede d'augmentation de la precision du controle de la trajectoire du produit dans une machine a planer a rouleaux imbriques et installation de planage permettant la mise en oeuvre du procede. |
DE102004041732A1 (de) | 2004-08-28 | 2006-03-02 | Sms Demag Ag | Verfahren zum Richten eines Metallbandes und Richtmaschine |
CN100446883C (zh) * | 2005-03-28 | 2008-12-31 | 宝山钢铁股份有限公司 | 带钢的平整工艺 |
CN101804428A (zh) * | 2010-04-28 | 2010-08-18 | 周锋 | 矫平机 |
CN101856680B (zh) * | 2010-06-21 | 2011-09-28 | 长治钢铁(集团)锻压机械制造有限公司 | 校平机 |
CN103084435B (zh) * | 2013-01-25 | 2015-05-13 | 大连三高集团有限公司 | 钢板矫平机辊缝调整装置 |
CN104148303B (zh) * | 2014-06-19 | 2016-01-20 | 宁波宝新不锈钢有限公司 | 一种平整机擦拭器的擦拭布和抛光网的安装方法 |
DE102015216387A1 (de) * | 2015-08-27 | 2017-03-02 | Sms Group Gmbh | Richtmaschine mit modular aufgebautem Wechselkassettensystem |
KR101888892B1 (ko) * | 2016-04-04 | 2018-08-16 | 주식회사 테크녹스 | 엠보싱 패턴 제조 장치 |
CN106238509A (zh) * | 2016-08-24 | 2016-12-21 | 南通恒鼎重型机床有限公司 | 矫平机的矫平辊结构 |
CN110402172B (zh) * | 2017-03-13 | 2022-02-25 | Sms集团有限公司 | 用于运行辊式矫直机的方法和辊式矫直机 |
RU2741438C1 (ru) | 2017-07-21 | 2021-01-26 | Новелис Инк. | Системы и способы управления текстурированием поверхности металлической подложки при прокатке с малым давлением |
CN107774742A (zh) * | 2017-12-07 | 2018-03-09 | 中国重型机械研究院股份公司 | 一种新型变辊距板材矫直机 |
CN111957763A (zh) * | 2019-05-20 | 2020-11-20 | 张挺锋 | 工作辊及支承梁变形量测量装置 |
CN116713347B (zh) * | 2023-08-10 | 2023-11-03 | 太原科技大学 | 用于拉伸弯曲矫直工艺的金属极薄带材可变包角压紧装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2747331C2 (de) * | 1977-10-21 | 1982-07-22 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | Vorrichtung zum Verstellen von Stützrollen |
DE3437777A1 (de) * | 1984-10-16 | 1986-04-24 | Fr. W. Schnutz GmbH & Co, 5900 Siegen | Stuetzwalzenverstellung fuer richtmaschinen |
SU1378978A1 (ru) * | 1985-11-04 | 1988-03-07 | Колпинское отделение Всесоюзного научно-исследовательского и проектно-конструкторского института металлургического машиностроения им.А.И.Целикова | Листоправильна машина |
DE3700555A1 (de) * | 1987-01-10 | 1988-07-21 | Schloemann Siemag Ag | Richtmaschine fuer bleche und baender |
SU1496862A1 (ru) * | 1987-03-24 | 1989-07-30 | Ю.И.Фролов, В.А.Самойлов и , и А.И.Дерев нченко | Устройство дл правки полосы |
SU1500407A1 (ru) * | 1987-12-29 | 1989-08-15 | Колпинское отделение Всесоюзного научно-исследовательского и проектно-конструкторского института металлургического машиностроения им.А.И.Целикова | Листоправильна машина |
DE4216686A1 (de) * | 1992-05-21 | 1993-11-25 | Schloemann Siemag Ag | Verfahren und Richtmaschine zum Richten von Blechen und Bändern |
FR2718661B1 (fr) * | 1994-04-15 | 1996-07-12 | Clecim Sa | Installation de planage d'une bande métallique. |
-
1995
- 1995-04-14 FR FR9504557A patent/FR2732912A1/fr active Pending
-
1996
- 1996-04-15 JP JP8530787A patent/JPH10501470A/ja active Pending
- 1996-04-15 CA CA002192828A patent/CA2192828C/fr not_active Expired - Fee Related
- 1996-04-15 CZ CZ19963673A patent/CZ292110B6/cs not_active IP Right Cessation
- 1996-04-15 KR KR1019960707102A patent/KR970703823A/ko not_active Application Discontinuation
- 1996-04-15 DE DE69616716T patent/DE69616716T2/de not_active Expired - Lifetime
- 1996-04-15 CN CN96190587A patent/CN1068534C/zh not_active Expired - Fee Related
- 1996-04-15 EP EP96913592A patent/EP0765196B1/fr not_active Expired - Lifetime
- 1996-04-15 WO PCT/FR1996/000573 patent/WO1996032212A1/fr active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013135688A1 (fr) | 2012-03-15 | 2013-09-19 | Sms Siemag Ag | Dispositif servant à redresser une bande métallique |
Also Published As
Publication number | Publication date |
---|---|
WO1996032212A1 (fr) | 1996-10-17 |
FR2732912A1 (fr) | 1996-10-18 |
CA2192828A1 (fr) | 1996-10-17 |
CZ292110B6 (cs) | 2003-07-16 |
CN1068534C (zh) | 2001-07-18 |
EP0765196A1 (fr) | 1997-04-02 |
CN1155855A (zh) | 1997-07-30 |
CZ367396A3 (en) | 1997-12-17 |
DE69616716D1 (de) | 2001-12-13 |
KR970703823A (ko) | 1997-08-09 |
CA2192828C (fr) | 2006-06-06 |
JPH10501470A (ja) | 1998-02-10 |
DE69616716T2 (de) | 2002-06-13 |
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