EP2401091A1 - Method for modifying the distance between the rollers of a levelling machine, levelling machine, and apparatus for implementing said method - Google Patents
Method for modifying the distance between the rollers of a levelling machine, levelling machine, and apparatus for implementing said methodInfo
- Publication number
- EP2401091A1 EP2401091A1 EP09776439A EP09776439A EP2401091A1 EP 2401091 A1 EP2401091 A1 EP 2401091A1 EP 09776439 A EP09776439 A EP 09776439A EP 09776439 A EP09776439 A EP 09776439A EP 2401091 A1 EP2401091 A1 EP 2401091A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- leveling
- planing
- rollers
- during
- new
- 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
Links
Classifications
-
- 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 invention relates to the field of flattening strips or thick metal plates. In particular, it relates to a method of modifying the distance between the rolls of planing crews installed in a leveling machine. It also relates to a leveling machine and an installation for implementing the method. 10
- planarization of the thick strips is obtained by a succession of alternating bends of decreasing amplitude without application of external traction upstream or downstream of the leveling machine.
- leveling machines comprise two leveling equipments each carrying a series of rollers with parallel axes placed
- rollers are offset longitudinally and vertically, so as to interlock by determining a corrugated path of the strip which is thus subjected to successive alternating bending effects.
- alternating flexures result in curvatures generating in
- the thickness fraction of the plasticized strip is usually expressed as a percentage of the total thickness referred to as the "plasticization ratio".
- the control of the planing operation depends on the control of the curvatures generated
- cops ⁇ DECo: irir.x ⁇ iCN the importance of "ceding" of the leveling machine under the effect of the separation forces between the lower and upper rollers, ceding which is taken into account in the application of clamping forces rollers.
- each leveling unit respectively lower or upper, comprises a plurality of rollers with parallel axes which normally have a reduced diameter and are therefore supported by at least two supporting rollers which can themselves bear on rows of rollers, all of these rollers and rollers being assembled on a frame.
- the lower leveling crew is supported on the fixed bed and the upper crew is supported on a pressure frame that can be moved vertically between the four columns by means of mechanical or hydraulic cylinders supported on the upper part of the frame, so as to adjust the spacing of the two planing crews and, therefore, the nesting of the rollers, by taking up the spacing forces due to the strength of the product.
- the leveling rollers are rotated about their axes in order to advance the web by friction at a determined speed, following a corrugated path between the lower and upper rollers.
- the variety of standardized formats of rolled strips placed on the market is such that a single installation can be made to produce and plan strips whose thickness can vary within very wide limits, for example from 5 to 50 mm or more. .
- the radius of curvature of a thick band is much smaller than that of a thinner band, and leads therefore at a much higher rate of plastification. Therefore, for a targeted rate of plasticization and all things being equal, the required nesting accuracy is necessarily higher for a thick band than for a thin band.
- the document JP 62-203616 describes a change of pitch of the upper and lower rollers of a planing machine by vertical retraction of every second roll.
- the upper rollers are retracted vertically upwards while the lower rollers are retracted vertically downwards.
- the lower planing unit is driven horizontally in the longitudinal direction of the strip.
- JP 50-57350 discloses a leveling machine in which the lower and upper crews are movable in the longitudinal direction of the strip.
- the device described in this document only allows a change of configuration between a given pitch and its double, without the possibility of intermediate values more appropriate and also does not allow the change of the diameter of the rollers.
- Publication EP 0 551 658 proposes to move certain rollers of a planing unit vertically so that they do not come into contact with the band and thus vary the pitch of the rollers.
- the method disclosed in this document is to move at least one pair of consecutive upper and lower rolls.
- spaces are created three steps between certain active rollers jointly or alternatively with spaces of a single step between other active rollers.
- Such an arrangement does not solve - in the case of thick strips - the problems of inaccuracy of the nesting of the rollers spaced apart by a single step and, on the other hand, does not make it possible to keep the isosceles triangular arrangements which allow a more precise modeling of curvatures.
- EP 1 584 384 proposes to have several types of upper and lower leveling crews carrying a different number of rollers of different diameters and, including gear distribution systems in order to go from a number of rolls to the next. other with the same engine.
- This arrangement has the major disadvantage of considerably increasing the size of the crews which include transmission shafts and gearboxes, which, for reasons of space available within said crews, can be considered only to transmit modest torques as indicated by the low strip thicknesses and small roll diameters cited in this document.
- the present invention proposes to solve the problems of the prior art by proposing a method, a machine and a planing installation comprising new means and new steps for modifying the relative position of the rollers of a planing crew so as to Continuous over a range of values, while maintaining the isosceles triangle arrangements that allow a more accurate modeling of curvatures. It is thus possible to adjust as precisely as possible the spacing between the leveling rollers according to the characteristics and in particular the thickness of the material to be hovered.
- the present invention has for its first object a machine for flattening a strip of material comprising: a fixed support frame comprising four uprights located on either side of the longitudinal axis of movement of the material joined to their part lower by a fixed bed and at their upper part by transverse beams, the assembly forming a closed frame, a lower leveling crew bearing on the fixed bed base and an upper leveling crew bearing on a pressure frame can be moved vertically between the four uprights, each leveling unit forming a cassette comprising a plurality of spaced rollers, rotatably mounted on a frame about axes perpendicular to the longitudinal axis of travel of the material, means for rotating the connected rollers at least some of the rollers by an extension, each extension having a first end driven by a and a second end provided with a removable coupling member with a drive end of the roller, said extensions being arranged on two levels, respectively a lower level of coupling with the rollers of the lower crew and a higher level coupling with the rollers of
- the means capable of moving the removable coupling members comprise a plurality of elements movable in translation, between two extreme positions, intended for the displacement of the removable coupling members
- the clamping locking means comprise:
- the intermediate cross member being located between the lower and upper crosspieces
- the movable elements each comprise a movable cradle adapted to slide on a sliding surface of the crossbar which carries them
- each cradle carrying at least one nip for pinching a removable coupling member each movable member comprises a nut secured to the cradle of the movable member, the nuts belonging to the same set movable elements being moved by the same screw, the screw being actuated by a rotary drive member, the screw comprises for each nut that it guides a drive threaded portion of predetermined length, each section comprising a step and an inclination such as two mobile cradles located equidistant from a point of the screw and on either side of this point move, approaching or moving away symmetrically with respect to this point during actuation of the screw, the pitch and the inclination of the threads are such that, during the rotation of the screw in one direction, the cradles of a set move away from each other while maintaining their relative relative spacing and, when the rotation of the screw in the other direction, the cradles of an assembly are closer to each other while maintaining their relative relative spacing, the upper and lower rails are guided in translation by two fixed
- each clamping crosspiece comprises a hollow portion forming a protective box for a portion of the movable elements that it supports, at least two clamping crosspieces comprise a fixed saddle located on a sliding surface of each of said clamping crosspieces in the middle of movable elements, each pinch seat being positioned to face another fixed pinch when pinch crosses are in the working position, the upper pinch crossbar and the lower pinch crossbar comprise each of their ends a hollow cylinder receiving fixed vertical axes serving as a guide in translation to the upper and lower crosspieces, the lower leveling equipment comprises at least four beams extending vertically from the lower chassis terminated at their upper part by spindles, the upper leveling crew has at least two spindle decks ge, each plate being pierced with at least one bore, the pins of the lower leveling crew being adapted to be
- the subject of the invention is also a method of modifying the distance between the rolls of planing crews installed in a leveling machine, the leveling machine comprising: a fixed support frame comprising four posts located on either side of the planing machine; longitudinal axis of travel of the material joined at their lower part by a fixed bed base and at their upper part by transverse beams, the assembly forming a closed frame, a lower leveling crew bearing on the fixed bed and a planing crew upper support a pressure frame that can be moved vertically between the four amounts, each leveling unit forming a cassette having a plurality of spaced rollers rotatably mounted on a frame about axes perpendicular to the longitudinal axis of travel of the material,
- each extension having a first end rotated and a second end provided with a removable coupling member with a drive end of a roll, said extensions being arranged on
- disassembly means each of the two planing crews in the form of cassettes by displacement, perpendicular to the axis of travel, between a working position inside the frame
- the method comprises: a step of clamping each detachable coupling member ensuring the transmission of the rotational torque to the rollers of
- the step of clamping the removable coupling members prior to the step of clamping the removable coupling members a step of stopping the rotational drive of the planing rollers is carried out, the step of clamping the removable coupling members has:
- step B a step B during which the upper crew rises from its working position to a high position and in which an intermediate clamping cross is brought from its rest position to a working position in which the cross intermediate pinching extends in a plane passing through two fixed vertical axes for translational guidance of the other cross members, "a step C during which a lower clamping beam of the leveling machine comes into contact with the removable coupling members lower and during which, the intermediate cross descends to come into contact with the same lower coupling members thus ensuring the clamping of the lower coupling members,
- the method comprises a step C prior to step D during which the lower leveling unit is moved in translation perpendicular to the direction of travel of the material, for example by extraction means, from its working position to an intermediate position in which pins of the lower leveling unit are opposite the upper planing crew bores, the step of extracting the former leveling crews out of the leveling machine comprises: step E1 during which locking devices are open thus disengaging the pressure frame and the upper leveling crew and during which, the pressure frame rises,
- each detachable coupling member comprises a step EO of moving a plurality of movable elements belonging to each of the clamping crosspieces, each movable element receiving a removable coupling member, the displacement of each movable element being effected, from a position corresponding to the coupling position of the removable coupling member with one of the rollers of former planing equipments, to a new coupling position of the removable coupling member with one of the rollers of the new planing crews the step of introducing the new leveling crews into the leveling machine comp Porte:
- a transfer cylinder pushes a set composed of two transfer devices respectively carrying planing crews, used or not adapted to the planing of a strip of material leaving the leveling machine and, new leveling crew, on rails until the transfer device carrying the new leveling crews is in the extension of the fixed bed of the leveling machine,
- step E4 during which the new upper and lower planing crews are pulled by a means of extraction from a storage position to a working position on the fixed bed of the leveling machine, until the drive ends of the new leveling rollers are introduced into the removable coupling members,
- B a step E5 during which the pressure frame goes down and during which, the new upper leveling unit is secured to the pressure frame through the locking devices, the step of releasing the removable coupling members comprises: B a step F during which the upper cross pinch up in the rest position and releases the upper coupling members and during which the new upper crew back also driven by the pressure frame,
- a step H during which the lower cross pinch down to its rest position and during which the new upper leveling crew down to their working position, the introduction stage of the new crews planing in the planing machine comprises:
- a transfer cylinder pushes a set composed of two devices of transfer respectively carrying used or non-adapted planing crews leaving the leveling machine and new leveling crew on rails until the transfer device carrying the new leveling crews is in the extension of the fixed bed of the leveling machine
- a step E4 ' during which new upper and lower planing machines, stitched together, are pushed onto the fixed base of the leveling machine until the insertion ends of the upper leveling rollers into the bodies removable coupling,
- a step E5 'during which the pressure frame descends and during which a new upper leveling unit is secured to the pressure frame by means of the locking devices, the step of releasing the removable coupling members comprises:
- step F “during which the new lower planing unit is moved in translation perpendicular to the running direction of the band from its disassembly position until the introduction of the lower planing rollers drive ends in the lower removable coupling members, • a step G during which the intermediate pinch cross back to its rest position and then pivots about its axis of rotation,
- the invention also relates to a leveling installation comprising a leveling machine as defined above, the leveling installation comprises: a first transfer device intended to receive planing crews used or inappropriate to planing the next material (M) coming from the leveling machine,
- a jack in contact with the transfer device able to move all of the two transfer devices from a position in which the first transfer device is installed in the extension of the fixed bed on
- FIG. 1 is a schematic side view of a planing machine
- FIG. 2 is a schematic front view of a machine of
- FIG. 3 is a diagrammatic view of the device for rotating the planing rollers
- FIG. 4 is a front view of the clamping crosspieces and of the displacement of the removable drive members of the rollers;
- FIG. 5 is a sectional view of one of the clamping crosspieces of FIG. 4
- FIG. 6 is a diagrammatic view of the steps for modifying the distance between the rolls of leveling crews installed in a leveling machine
- FIGS. 7A to 7D are diagrammatic views of the steps of disassembly of leveling equipments
- FIGS. 8A. 8D are schematic views of the steps of use of planing crew transfer devices according to the invention
- Figures 9A to 9C are schematic views of an embodiment of planing crews according to the invention.
- FIGS. 1 and 2 show diagrammatically in side and front view the assembly of a multiple roller planer 15 comprising two leveling equipments 28 and 30 placed on either side of a horizontal axis P. running a material M, inside a support frame 20 having four uprights 22 (only two of which are visible in FIG. 1) fixed at their base by a fixed bed base 24 resting on the foundation block and connected to their upper part by transverse beams 26.
- the upper crew 30 carries a plurality of leveling rollers 34 with parallel axes, spaced from each other, and each bearing at least on a support roller 25, the rollers 34 being rotatably mounted about their respective axes, on a frame 40 which is supported on a pressure frame 32 and is connected thereto, removably, by fastening means (not shown in Figure 1).
- the level of the pressure frame 32 and consequently of the upper leveling assembly 30 can be regulated by cylinders 27, mechanical or hydraulic, bearing on the transverse beams 26.
- the lower assembly 28 comprises a plurality of planing rollers 36 resting on support rollers 29, said rollers being rotatably mounted around their parallel axes on a support frame 38 which bears on the bed base 24.
- the upper planing rollers 34 and lower 36 are offset in the direction of travel of the material M so as to provide a corrugated path to the material M, their nesting being adjustable by the cylinders 27.
- the latter In order to achieve the desired tensile-bending effects on the product M 1, the latter must pass longitudinally between the rollers and, for this purpose, is driven by friction by at least some of the leveling rollers 34, 36 which are driven in rotation by a motorized assembly comprising, for example, as shown diagrammatically in FIG. 3, one or more motors 47 driving one or more speed reducers 43 which actuate at the required speed one or more gear boxes 45 distributing the rotational torques to the different upper and lower work rollers 34 and 36 via upper extensions 44 and lower 46 having two ends respectively connected by gimbal connections 51, 55, on one side to the end journals 52, 53 of the rollers leveling 34, 36 and the other at the outputs of the gear box 45.
- a motorized assembly comprising, for example, as shown diagrammatically in FIG. 3, one or more motors 47 driving one or more speed reducers 43 which actuate at the required speed one or more gear boxes 45 distributing the rotational torques to the different upper and lower work rollers 34 and 36 via upper extensions
- planing machines for sheets or thick strips have, depending on the case, seven to eleven planing rollers.
- the upper crew 30 can carry five rollers 34 and the lower crew 28 six rollers 36.
- Such machines applied to the wide and thick strips and plates can to reach a mass of more than 300 tons for a height greater than 10 meters, a leveling crew that may have, by itself, a mass of several tens of tons.
- rollers are subjected to high surface pressure stresses and abrasion phenomena that require their repair, for example machining by grinding their active surfaces, in a maintenance workshop.
- each universal joint 51, 55 placed at the end of an extension 44, 46 is connected to the journals 52, 53 of the working roll 34, 36 by a compression member.
- removable coupling 48, 50 which, in the example shown, may be an internally grooved sleeve, in which engages, by axial sliding, the pin 52, 53 of the roller 34, 36 provided with corresponding grooves.
- each planing unit, respectively top 30 or lower 28 forms a cassette which can be slidably mounted on transverse rails (not shown) formed on the support frame 20 so as to be laterally spaced on the operator side after uncoupling. from with the extensions 44,46.
- each lower cassette 28 or greater 30 is brought back to the leveling position inside the cage 20 and it is then necessary to restore the coupling between each leveling roller and the corresponding extension.
- the axes of the upper rollers 34 are placed at an altitude H2 and the coupling members 48 are centered on the axes of rollers at the same altitude H2 .
- the axes of the lower rollers 36 are placed at an altitude H1 and the coupling members 50 are centered on the axes of the lower rollers 36 at the same altitude H1.
- the coupling members 48,50 must remain at altitude respectively. H2 or H1 when reassembling new casings new, rectified or more adapted to the characteristics of the material to be hovered.
- the leveling machine comprises means 101, 102, 103 for blocking each removable coupling member 48, 50 at a predetermined altitude H2, H1 during the crew change phases. This blocking being, in the embodiment of the figures achieved by clamping each removable coupling member 48,50.
- the locking means 101, 102, 103 further comprise means for moving the coupling members removable in translation, along the horizontal axis P of the strip of material M.
- FIG. 4 shows an embodiment of the locking means 101, 102, 103 of each removable coupling member comprising means for translational movement of the removable coupling members in the direction of travel of the material M, in both directions. defined by this direction.
- the displacement means are able to move in the same direction as the strip or in the opposite direction by driving the removable drive members.
- each removable coupling member 48, 50 comprise three horizontal cross members, an upper cross member 101 for clamping, a lower cross member 102 for clamping and an intermediate cross member 103 located between the upper and lower cross members.
- the upper and lower crosspieces 101 extend longitudinally between two vertical fixed columns 104, 124 having at each of their ends supports 105, 125, 135, 145 intended to be fixed to two of the uprights 22 of the leveling machine 15.
- the upper and lower crosspieces 101 comprise, at each of their respective ends, a hollow cylinder 110, 111, 112 113 in which are inserted the fixed vertical axes 104, 124 which thus serve as translational guides to the crosspieces 101 and 102.
- Each hollow cylinder 110, 111, 112, 113 is integral with a cylinder support portion 110A, 111A, 112A, 113A which receives an end of a jack
- the intermediate cross member 103 is articulated in horizontal rotation, for example under the action of a jack (not shown), around one of the axes 124 for guiding the other cross members between, a working position (as shown in FIG. 3) in which extends in an imaginary plane passing through the fixed vertical axes 104, 124 and a rest position in which it extends out of the imaginary plane passing through the fixed vertical axes 104, 124.
- the intermediate nip 103 comprises its pivoting end a hollow cylindrical portion 1003A in which is inserted the vertical column 124 serving as an axis of rotation. Each end of the cylindrical portion 1003A is in contact with a C-shaped translational guide 140 slidable along the column 124.
- the translation guide 140 is inserted between the hollow cylindrical portion 113 of the upper clamping cross member 101 and the hollow cylindrical portion 112 of the lower clamping crosspiece 102 and is in annular contact with each of these cylindrical portions.
- the translation guide 140 also comprises a plate-shaped portion 182 extending in the opposite direction to that of the intermediate clamping cross member 103 when the latter is in its working position as shown in FIG. 182 serves to support two jacks 118 and 119 for moving the clamping crosspieces 101 and 103.
- the intermediate clamping cross 103 has a free end 103B which, in the working position, is received and locked between the two ends of a second C-shaped translation guide 141 able to slide along the column 104.
- translation guide 141 is inserted between the hollow cylindrical portion 110 of the upper clamping cross member 102 and the hollow cylindrical portion 111 of the lower clamping crosspiece 102 and is in annular contact with each of these cylindrical portions.
- the translation guide 141 also comprises a plate-shaped portion 181 extending in the opposite direction to that of the intermediate clamping cross member 103 when the latter is in its working position as shown in FIG. 181 serves to support two jacks 106 and 116 for moving the clamping crosspieces 101 and 103.
- the lower cross member 102 rests on two mechanical cylinders 107, 117 each mounted on a support fixed to a fixed element of the leveling machine 13, for example to the bed base 24.
- the two jacks 107, 117 are actuated in synchronism by an extension system 144 driven by a motor.
- the lower crossbar 102 is thus guided vertically by the rods of the two cylinders 107, 117 and can be raised to support five members or coupling sleeves 50 of the lower extensions 46 in the position shown in Figure 4.
- the intermediate crosspiece 103 is placed substantially at the axis P of the product, between the two levels of the journals 53, 52 on which the extensions 44, 46 engage. It can be moved horizontally between two positions, respectively a closed locking position for which the intermediate crosspiece extends transversely to the axes of the rollers, between the coupling sleeves 48, 50 of the two sets of extensions 44, 46 and an open position, laterally spaced, allowing the vertical displacements of the rollers higher
- Each pair 106/116 and 118/119 cylinder is mounted head to tail between a cylinder support portion 110A, 111A, 112A, 113A and a plate portion 181 or 182 of one of the translation guides 140 or 141, the base of each of the cylinders being in this embodiment attached to the plates 181 or 182 of the guides 141 or 140.
- FIG. 5 is a longitudinal sectional view of a clamping cross member 102 showing in detail an embodiment of the displacement means of the removable coupling members.
- the other sleepers also comprise displacement means similar to those which will now be described.
- each mobile element 130 comprises at least one support cradle 108A to 108D.
- Each support cradle 108A to 108D is free to slide in horizontal translation on the sliding surface guided by a slot which acts as a rail.
- Each support cradle 108A to 108D may take the form of a substantially rectangular plate.
- Each cradle 108A to 108D carries on its upper face at least one wheel 109A, 109B, 109D 109E 1 clamp intended to cooperate with a removable coupling member 48,50.
- the surface of each saddle 109A, 109B, 109D, 109E opposite the sliding surface 1010 has a curved shape complementary to that of the coupling member 48, 50 which it is intended to grip.
- each movable member 130 therefore comprises at least one cradle and a saddle.
- Each support cradle 108A to 108D is secured to a nut 1012A to 108D actuated by a screw 1013 itself animated by a rotational actuating member 1014. All the integral nuts of the same set of cradles 108 are actuated by a single screw 1013. The nuts 1012A to 1012D and the screw 1013 are inserted into the protective box formed by the central portion 102A of the
- Crossbar 102 which prevents fouling of these cradle drive means 108A to 108D and which also saves space.
- the screw 1013 comprises a plurality of guide sections of each nut whose threading characteristics differ.
- the screw 1013 comprises for each nut 1012A, 1012B, 1012C or 1012D, that it guides a threaded portion 1013A, 1013B, 1013C or 1013D of the drive.
- each section 1013A, 1013AB, 1013C, 1013D comprising
- the cross member 102 comprises a fixed central saddle 109C fixed without moving cradle.
- the mobile cradles 108A to 108C then move symmetrically with respect to this fixed saddle 109C.
- the pitch and inclination of the thread sections 1013B and 1013C of the screw ensure a symmetrical movement of the support cradles 108A / 108D and 108A / 108C around the fixed position of the seat 109C.
- the pitch and inclination of the thread of the screws are such that the distance traveled during the actuation of the screw by the support cradles 108A and 108D is double the distance traveled by the support cradles 108B and 108C.
- the two sections 1013B and 1013C are of inverse thread tilt, as are the inclinations of the two sections 1013A and 1013D.
- the pitch of the sections 1013B and 1013C may be two millimeters, the support cradles 108B and 108C approaching or moving away from the central saddle 109C, according to the directions of rotation of the screw, by a distance two millimeters per turn of screw.
- the two cradles 108A and 108D must move towards or away from the saddle 109C, according to the direction of rotation of the screw, by a distance of four millimeters per revolution. quote.
- the pitch of sections 1013D and 1013A is therefore four millimeters.
- the screw 1013 of the clamping cross member 102 is actuated by remote-controlled rotation actuators 1014 which provide for the movement of the cradles 108A to
- the rotation actuator 1014 of the screws can be an electric or hydraulic motor or a servomotor.
- screw systems 1013 / nuts 1012A through 1012D may be ball screw / nut systems.
- the upper crossbar 101 for clamping bears on its lower horizontal face 101.
- the lower crossbar 102 for clamping bears on its horizontal face 102A a top second set of movable elements 130 and the intermediate clamping cross 130 carries on its upper horizontal face 103A a third set of movable elements 130 and carries on its lower horizontal surface 103B a fourth set of movable elements 130.
- Each movable element 130 of the third set of movable members 130 is positioned to face a movable member 130 of the first set of movable members and each movable member of the fourth set of movable members 130 is positioned to be screwed.
- the intermediate cross member 103 bears on its underside a fixed saddle 109c which, in the working position of the intermediate cross member 103, faces another fixed saddle 109C. by the lower crossbar 102.
- the rotary drive member 1014 of each screw 1013 is controlled so that the movable elements 130 placed directly vis-à-vis move simultaneously the same distance and in the same direction to drive in translation a removable coupling member 48 or 50, as a function of a set distance of the planing rollers.
- FIG. 6 represent the displacements of the different elements of the planing machine seen from the driving face of the leveling machine while the diagrams of FIGS. 2 and 7A to 7D represent the displacements of the elements of the planing machine.
- FIGS. 8A to 8D show the steps of evacuation of the planing crews used or inappropriate for the planing of a new strip of material and the steps of replenishing the machine with new crews.
- the upper planing 30 and lower 28 crews are clamped in the working position.
- the upper sleepers 101 and lower 102 pinch are in the rest position away from the organs Coupling 48.50 of the planing rollers.
- the upper crossbar 101 is in the fully raised position, the lower cross 102 in the fully lowered position and the intermediate cross 103 in the retracted position.
- the upper leveling equipment 30 is secured to the leveling machine 15 by four locking devices 13.
- a transfer device 17 is in the waiting position of the leveling equipments 28, 30 used or unsuitable for planing the machine. next material. During this stage, the driving of the leveling rollers 28, 30 is stopped.
- the upper planing unit 30 rises under the action of the cylinders 27 which lift the pressure frame 32 leaving enough space for the intermediate clamping cross member 103 to be brought from its position. rest position at its working position.
- step D in FIG. 6 the upper crew 30 goes down to: allow the upper coupling members 48 to come into contact with the intermediate clamping crosspiece 103 and then the upper clamping cross member 101 descends to to come into contact with the same upper coupling members 48 thus ensuring the clamping of these upper coupling members 48.
- the position of the different elements of the planing machine at the end of step D is also represented at the Figure 7B. 30
- the step of clamping the removable coupling members 48, 50 ensuring the transmission of the rotational torque to the planing rollers for maintaining them at a predetermined altitude H1 or H2 comprises the steps B, C and D previously described. .
- the support cradles 108 of the movable elements 130 are spaced apart or brought together by controlling the actuators 1014 of each of the screws 1013 of the three crosspieces 101, 102, 103 in order to increase or decrease the no planing rollers.
- each detachable coupling member 48, 50 clamped between two movable members 130 is moved from a position corresponding to its coupling position with the old roll 34, 36 to a new coupling position with a new roller roller of a new crew 28 ', 30'. 10
- step EO a succession of steps relating to the actual replacement of planing crews are performed, these steps will now be described with reference to Figures 7C, 7D and 8A to 8D.
- the locking devices 13 are open thus disengaging the pressure frame 32 and the upper leveling crew 30, and then the pressure frame 32 rises, released from the crew In this position, the upper leveling equipment 30 is based on
- step E2 shown in FIG. 7D the upper 30 and lower 30 leveling crews are pushed by an extraction means 11 to the transfer device 17, this causes the extraction of the drive journals 52, 53 of
- steps E1 and E2 form the step of extracting the former planing crews out of the leveling machine.
- FIGS. 8A to 8D are diagrammatic top views of a leveling installation showing the various steps and the various means allowing a rapid change of planing equipments 28 and 30. In the views of FIG. displacements of planing crews were represented.
- FIG. 8A a set of upper and lower planing crews 30 is still installed on the fixed bed 24 of the leveling machine 15, the upper leveling crew 30 being placed on the lower leveling crew.
- a first transfer device 17 is installed in the extension of the fixed bed, ready to receive the planing crews 28 and 30 used or inappropriate to planing the next material M.
- Upper and lower planing 28 ', 30' is attached to the transfer device 17 via a hitch 123.
- the leveling installation further comprises a jack 124 in contact with the transfer device 17 '.
- FIG. 8B the upper and lower planing crew assembly 28 is pushed by the extraction means 11 (not shown in FIG. 8) to the transfer device 17, the leveling crew assembly 28,30 being guided by a rail 12 extending longitudinally in the bed base 24 and extending below the transfer device 17.
- This view corresponds to the position shown in Figure 7D and E2 step previously described.
- the method according to the invention comprises a step E3 represented in FIG. 8C during which the transfer jack 124 pushes the set of two transfer devices 17 and 17 'onto rails 125 until the device of FIG. transfer 17 'carrying the new planing crews 28', 30 'is in the extension of the fixed bed 24 of the leveling machine 15.
- Step E4 shown in FIG. 8D the new set of upper planing crews 30 'and lower 28' is drawn, for example by the extraction means 11, from a storage position to a working position on the fixed bed of the leveling machine 15 until the drive journals 52, 53 of the new leveling rollers 28 ', 30' are introduced into the detachable coupling members 48, 50.
- the leveling machine 15 is equipped with new leveling equipments 28 ', 30', the rollers of which are spaced apart in such a way as to optimally plan a material having new features.
- Steps E3 and E4 constitute in the present embodiment the step of introducing the new crews 28 ', 30' of planing into the leveling machine 15. It is found in the position marked EO in Figure 6.
- the intermediate clamping cross 103 rises to its rest position and then pivots about its axis of rotation 124.
- Steps F, G and H constitute in the present embodiment the step of releasing the removable coupling members.
- step I the pressure frame 32 goes down again by driving the new 30 'planing crew to obtain the desired nesting between the new leveling crews for the planing of the new material. Then, the drive motor 47 of the planing rollers is restarted.
- the leveling machine is again in the working position and can glide a new material by having new planing rollers 48 'and 50' having a spacing and a diameter adapted to the characteristics of the new material M to be hovered.
- FIGS. 9A to 9C show a particular embodiment of lower leveling crews 28 and upper 30 allowing secure securement of the upper crew to the lower crew during the extraction, introduction and transfer phases. planing crews. This embodiment makes it possible to avoid any relative movement of one crew relative to the other.
- FIGS. 9A-9C For better understanding, only planing crews 28 and 30 are shown in FIGS. 9A-9C.
- each leveling crew has a
- the lower planing assembly 28 comprises at least four beams 41 extending vertically from the frame 38 and terminated in their upper part by two pins 42.
- the upper leveling crew 30
- FIG. 9A the two upper and lower planing crews 30 are shown in the working position.
- the upper planing unit is first raised so that the underside of its plates 43 is higher than the upper end of the pins 42, then it is translated in order to match the pins 42 and the bores 44. It is also possible that it is the lower leveling crew 28 that is moved for example by translation so that the upper end of its pins 42 come opposite bores 44.
- the upper leveling crew is then placed on the lower leveling crew, the two crews being stitched together by the introduction of the pins 42 into the bores 44.
- the method according to the invention comprises an additional step C being performed between step C and step D previously described and steps E4 ', E5', F 'and F "carried out in place of steps E4, E5 and F already described.
- the lower removable coupling members 50 are located at the height H1 clamps between the intermediate clamping cross member 103 and the lower clamping cross member 102.
- step D the upper crew 30 goes down to
- step D is then carried out.
- step E4 ' new bottom planing units 28' and upper 30 'stitched together according to the embodiment of FIG. 9C are pushed onto the fixed bed of the planing machine 15 until the introduction 53 of the upper planing rollers in the upper extension couplings 48.
- This is in the configuration of FIG. in that the new planishing lower planing means 28 'and planing upper leveling 30' are stitched together according to the embodiment of FIG. 9C.
- step E5 the pressure frame 32 goes down and the new upper leveling unit 30' is secured to the pressure frame 32 by means of the locking devices 13.
- step F ' the upper clamping cross member 101 rises to the rest position 10 and thus releases the upper coupling members 48, and then the new Upper crew 30 'also rises, driven by the pressure frame 32.
- step F the new lower leveling unit 28 'is moved in translation perpendicular to the running direction of the strip from its disassembly position until the introduction of the planing rollers 52 of the planing rollers. in lower end couplings 50.
- the steps G and following are then performed.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09776439A EP2401091B1 (en) | 2009-02-25 | 2009-03-13 | Method for modifying the distance between the rollers of a levelling machine, levelling machine, and apparatus for implementing said method |
PL09776439T PL2401091T3 (en) | 2009-02-25 | 2009-03-13 | Method for modifying the distance between the rollers of a levelling machine, levelling machine, and apparatus for implementing said method |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09290133 | 2009-02-25 | ||
PCT/EP2009/001871 WO2010097100A1 (en) | 2009-02-25 | 2009-03-13 | Method for modifying the distance between the rollers of a levelling machine, levelling machine, and apparatus for implementing said method |
EP09776439A EP2401091B1 (en) | 2009-02-25 | 2009-03-13 | Method for modifying the distance between the rollers of a levelling machine, levelling machine, and apparatus for implementing said method |
Publications (2)
Publication Number | Publication Date |
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EP2401091A1 true EP2401091A1 (en) | 2012-01-04 |
EP2401091B1 EP2401091B1 (en) | 2012-12-26 |
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Application Number | Title | Priority Date | Filing Date |
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EP09776439A Active EP2401091B1 (en) | 2009-02-25 | 2009-03-13 | Method for modifying the distance between the rollers of a levelling machine, levelling machine, and apparatus for implementing said method |
Country Status (9)
Country | Link |
---|---|
US (1) | US9162270B2 (en) |
EP (1) | EP2401091B1 (en) |
JP (1) | JP2012518543A (en) |
CN (1) | CN102333601B (en) |
BR (1) | BRPI0924259B1 (en) |
ES (1) | ES2401978T3 (en) |
PL (1) | PL2401091T3 (en) |
UA (1) | UA102140C2 (en) |
WO (1) | WO2010097100A1 (en) |
Cited By (1)
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---|---|---|---|---|
CN105563285A (en) * | 2015-12-15 | 2016-05-11 | 新昌县中瑞轴承厂 | Leveler with automatic cleaning function |
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WO2014084144A1 (en) * | 2012-11-29 | 2014-06-05 | スチールプランテック株式会社 | Leveler equipment and correction method for plate material |
CN103331342A (en) * | 2013-07-02 | 2013-10-02 | 海安瑞英锻压设备有限公司 | Novel veneer reeling machine special for vehicle |
CN103406393A (en) * | 2013-08-16 | 2013-11-27 | 济南二机床集团有限公司 | Leveling machine |
US9802232B2 (en) * | 2014-04-07 | 2017-10-31 | Butech Bliss | Positioning drive shaft support for roller leveler |
EP3300809A1 (en) | 2016-09-28 | 2018-04-04 | Primetals Technologies France SAS | Facility and method for levelling a metal product |
US10010918B2 (en) * | 2016-10-05 | 2018-07-03 | Allor Manufacturing Inc. | Device and method for leveling a metal plate |
CN107838229A (en) * | 2017-11-24 | 2018-03-27 | 鹤山市顺亿达铜业制品有限公司 | A kind of copper coin flat unit |
CN110883094B (en) * | 2019-12-17 | 2021-08-17 | 聊城景昊铝业有限公司 | Aluminum alloy plate blank aluminum-clad continuous binding device |
CN113714400B (en) * | 2021-06-02 | 2023-04-28 | 河南金彭车业有限公司 | Operation method of automatic feeding and forming production line for flat iron coil stock |
CN114011906B (en) * | 2021-11-25 | 2023-04-25 | 贵溪奥泰铜业有限公司 | Leveling device for copper strip production |
CN116944364B (en) * | 2023-09-20 | 2024-03-08 | 常州钢劲型钢股份有限公司 | Rotating device and method for curve power transmission tower steel structure machining straightening machine |
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- 2009-03-13 ES ES09776439T patent/ES2401978T3/en active Active
- 2009-03-13 US US13/203,251 patent/US9162270B2/en active Active
- 2009-03-13 JP JP2011551410A patent/JP2012518543A/en active Pending
- 2009-03-13 UA UAA201110344A patent/UA102140C2/en unknown
- 2009-03-13 EP EP09776439A patent/EP2401091B1/en active Active
- 2009-03-13 BR BRPI0924259-7A patent/BRPI0924259B1/en active IP Right Grant
- 2009-03-13 WO PCT/EP2009/001871 patent/WO2010097100A1/en active Application Filing
- 2009-03-13 CN CN200980157513.0A patent/CN102333601B/en active Active
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Also Published As
Publication number | Publication date |
---|---|
WO2010097100A1 (en) | 2010-09-02 |
US9162270B2 (en) | 2015-10-20 |
EP2401091B1 (en) | 2012-12-26 |
ES2401978T3 (en) | 2013-04-25 |
UA102140C2 (en) | 2013-06-10 |
US20120055220A1 (en) | 2012-03-08 |
CN102333601A (en) | 2012-01-25 |
JP2012518543A (en) | 2012-08-16 |
CN102333601B (en) | 2014-07-16 |
BRPI0924259B1 (en) | 2020-03-24 |
PL2401091T3 (en) | 2013-05-31 |
BRPI0924259A2 (en) | 2016-01-26 |
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