EP3429769A1 - Laminoir pour bande metallique - Google Patents
Laminoir pour bande metalliqueInfo
- Publication number
- EP3429769A1 EP3429769A1 EP17714872.3A EP17714872A EP3429769A1 EP 3429769 A1 EP3429769 A1 EP 3429769A1 EP 17714872 A EP17714872 A EP 17714872A EP 3429769 A1 EP3429769 A1 EP 3429769A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chocks
- holding cage
- chock
- cage
- movable member
- 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
- 238000005096 rolling process Methods 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 title claims abstract description 13
- 230000008878 coupling Effects 0.000 claims description 31
- 238000010168 coupling process Methods 0.000 claims description 31
- 238000005859 coupling reaction Methods 0.000 claims description 31
- 238000006073 displacement reaction Methods 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 13
- 230000000295 complement effect Effects 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
- B21B31/106—Vertical displacement of rolls or roll chocks during horizontal roll changing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/025—Quarto, four-high stands
Definitions
- the invention relates to a rolling mill comprising an improved clamping system of the working rolls.
- the field of the invention is that of Quarto cage mills which find particular application, for example in annealing lines, or galvanizing lines, or else, offline mills, reversible or non-reversible, for metal band .
- the mill according to the invention has a particular application, especially after annealing of the strip, to make a skin pass, often for the purpose of removing the elastic bearing from the metal strip to print a roughness and / or improve the brightness and / or improve the flatness.
- a Quarto cage mill has a holding cage comprising two pairs of uprights, at both ends of the cage between which are provided four cylinders with parallel axes, namely two working rolls, lower and upper, defining the air gap the strip to be rolled, as well as two support rolls, upper and lower, respectively bearing on the working rolls, on the opposite side to that of the air gap.
- the motorization of the cylinders is provided on one side of the cage, the other side, said operator side being the one where the maintenance operations are performed, in particular the cylinder change operations through the access window present between the two uprights of the cage on this operator side.
- each support or working cylinder is rotatably mounted at its ends on chocks, by means of bearings, for example bearings or hydrostatic bearings.
- These chocks are supports that can be moved in a direction parallel to the clamping plane, between the two amounts of the cage.
- a rolling mill of the Quarto type comprises means for applying a clamping force between the chocks of the support rolls, in the form of two hydraulic cylinders, often at the lower end of the cage, bearing respectively on the two chocks of one of the support cylinders, often inferior.
- these two hydraulic cylinders allow the opening of the cage, namely the spacing of the cylinders the upper cylinders (upper support roll and work roll) with respect to the lower rollers (lower support roll and lower work roll), and in a position where the latter can be extracted from the stand.
- the chocks of the working rolls, and the chocks of the support rollers are thus mounted sliding in a direction parallel to the clamping plane, so as to allow the opening of the cage or its closure, or facilitate maintenance operations and dismantling.
- each chock typically comprises two sliding plates, parallel and opposite, on either side of the axis of rotation of the cylinder, and cooperating with sliding plates secured to the uprights and parallel to the latter, at the two sides of the window.
- These sliding plates do not, however, ensure the blocking of the chocks (and their cylinder) along the axis of the supported cylinder.
- the system for clamping the chocks of the work rolls comprises, for each chock, two vertical grooves of the opposite chocks located on either side of the axis of rotation of the roll, as well as two associated locking members respectively secured to the uprights, movable horizontally.
- Each locking member can move from a locking position in which the locking member penetrates the vertical groove, to an unlocked position in which the locking member is retracted out of this groove.
- the locking member In the locking position, the locking member, secured to the upright, prevents the displacement of the chock along the axis of the cylinder, while allowing the sliding of chock along the vertical axis of the uprights, by moving the locking member along the vertical groove of the chock.
- the clamping system of the working rolls of the state of the art comprises actuators dedicated to this function, typically hydraulic cylinders, as well as limit switches with electrical contacts, in order to pass the locking member from its retracted position to its locking position, and vice versa.
- the axial stop of the chock of the lower working cylinder is provided by means of two supporting arms (14), extending horizontally and rigidly on both sides of the chock, symmetrically relative to the axis of the cylinder, which abut against the walls of two locking grooves ("locking groove” 19) located in grooves ("passage grooves" 12) of the two guide blocks secured to the amounts of the cage when the cylinder is in the high position, which corresponds to the working position (see Figure 1): thus obtaining the clamping of the lower working cylinder.
- the axial stop of the chock of the upper working cylinder is achieved by means of two locking pockets ("locking pockets” 18) of the referenced chord 5 which come to enclose two locking cams ("locking cams"). 17) corresponding to the chock of the lower work roll 4.
- the axial forces entered by the chock of the upper work roll are fully taken up by the chock of the working cylinder lower before being cashed by the frame through the guide blocks, which is not ideal in terms of recovery of mechanical forces.
- the device according to EP 0 738 546A1 ensures the locking of the chocks of the working rolls by means of two support pieces marked 6, 6 'arranged symmetrically on both sides of the frame of the rolling mill and integral therewith.
- the axial stop of the chock of the upper work roll is ensured by a holding portion marked 60b of the support piece marked 6 integral with the rolling mill frame which is housed in a recess marked 41 of the chock of the cylinder of identified upper work 4 which one of the walls abuts against the holding portion (60b).
- the axial stop of the chock of the lower work roll is done by means of the marked studs 70, 71 which extend from the respective upper or lower surfaces of the chocks and are housed in corresponding holes of the other chocker marked 46, 46 ', thus preventing the axial displacement of one chock relative to the other.
- the studs (70, 71) extend only over a distance "substantially equal to half of the maximum spacing", which corresponds to the maximum spacing in working position (see p.5, lines 26-34).
- the studs no longer penetrate the holes of the opposite chock and the axial stop of the lower chock (4 ') is no longer provided by the system described above.
- the document EP 0 738 546A1 has the following particularities: the system described above makes it possible to ensure the axial locking of the chocks of the upper work roll and the chocks of the lower work roll only for certain cage openings (in operation),
- the object of the present invention is to overcome the aforementioned drawbacks by proposing a rolling mill whose system of clamping the working rolls is improved.
- the object of the present invention is to provide a rolling mill for metal strip ensuring the clamping of the working rolls, lower and upper, without the use of a dedicated actuator, while ensuring a better recovery of the axial forces, and by comparison with the above-mentioned state of the art consisting of document US Pat. No. 3,861,189 (or EP 0 738 546A1).
- the invention relates to a rolling mill for metal strip comprising: - a holding cage,
- a set of superimposed cylinders with substantially parallel axes comprising two working rolls, lower and upper, defining the passage gap, and two respectively lower and upper support rolls for respectively bearing on the work rolls on the side. opposite to that of the air gap - each cylinder having two ends mounted rotatably, each on a bearing carried by a chock, guiding means between the chocks of the rolls and the holding cage, according to the clamping plane,
- means for applying a clamping force between the chocks of the support cylinders comprising hydraulic cylinders, a system for clamping the chocks of the work rolls, ensuring the locking of the chocks with respect to the holding cage , along the axis of the cylinder, while allowing the sliding of the chocks along the guide means, along the clamping plane.
- the clamping system of the working rolls comprises mechanical means that can pass from a first retracted position, allowing the withdrawal of their working rolls from their holding cage along their axis to a second locking position ensuring the blocking the chocks with respect to the holding cage, along the axis of the cylinder, said mechanical means using:
- the clamming and declaiming operations use the same actuators necessary for the opening and closing of the holding cage, namely the hydraulic cylinders of said means for applying a clamping force between the chocks of the cylinders. 'support.
- these clamping operations do not require actuators dedicated to these operations, or even dedicated electrical limit switches.
- said at least one movable member is a separate element from the chocks of the work rolls, held in the vertical groove integral with the amount of the holding cage when the working rolls and their chocks are extracted from the holding cage; the locking end being intended to cooperate with a vertical groove of a chock of a work roll, upper or lower, the movable member having at its other end a coupling portion to the chock of the roll of work located on the other side of the plane of travel of the metal strip, said coaching chord, lower or higher, and cooperating with a complementary coupling portion of the driving chock and so as to synchronize the displacement the movable member with the driving chock during the opening or closing movements of the holding cage;
- the driving chocks rest on support rails extending, parallel between the uprights at both ends of the holding cage, transversely to the metal band, the part coupling the movable member and the complementary coupling portion of the driving chock, comprising a groove / rib system respectively belonging to the chock and the movable member, or conversely, the coupling portion of the movable member being positioned, at the end of the stroke, in said open position of the holding cage, in a position relative to the support rails so as to allow the coupling / uncoupling of the coupling portion of the movable member to the driving chock when loading / unloading the work roll along the support rails.
- the driving chocks are the chocks of the lower work roll, the movable member being positioned, in said open position of the holding cage, at the end of the low run under the effect of the gravity at a position relative to the support rails so as to allow the coupling / decoupling of the lower end of the movable member to the driving chock during loading / unloading of the lower work roll along the rails Support ;
- the driving chocks are the chocks of the upper work roll, the movable member being positioned in said open position of the holding cage, under the effect of an elastic means, at the end of stroke, in a position relative to the support rails so as to allow the coupling / decoupling of the upper end of the movable member to the driving chock during the loading / unloading of the upper work roll along support rails.
- said mechanical means of the clamping system comprise:
- the rolling mill may also comprise a system for clamping the chocks of the support cylinders, in particular manual cylinders, which can pass from a retracted state, allowing the withdrawal along their axis of the support cylinders out of the holding cage to a state of blocking ensuring the blocking of the chocks with respect to the cage, along the axis of the cylinder, while allowing the grout sowing chocks along the guide means, according to the clamping plane.
- a system for clamping the chocks of the support cylinders in particular manual cylinders, which can pass from a retracted state, allowing the withdrawal along their axis of the support cylinders out of the holding cage to a state of blocking ensuring the blocking of the chocks with respect to the cage, along the axis of the cylinder, while allowing the grout sowing chocks along the guide means, according to the clamping plane.
- FIG. 2 is a perspective view of the holding cage of the rolling mill according to FIG. 1;
- FIG. 3 is a detail view, in perspective, of two of the chocks respectively belonging to the upper work roll and the lower working roll, in the closed position of the holding cage and in the said locking position of the said clamping system. chocks of work rolls,
- - Figures 4 and 5 are respectively two views of said mechanical means of the clamping system respectively in said first retracted position and in said second locking position
- - Figure 6 is a partial view of a Quarto rolling mill according to the state of the technical, provided with clamping system of cylinders with dedicated cylinders.
- FIG. 7 is a detailed view of a dedicated jack clamping system, as known from the state of the art.
- a Quarto rolling mill as known from the state of the art and more particularly the clamping systems of the chocks of work rolls and support rollers in such a Quarto mill.
- Figure 6 is a view of such a rolling mill for which the holding cage 2 'and the lower bearing roll are shown, the other rolls being not shown.
- the clamping systems are dedicated hydraulic cylinders.
- FIG. 7 is a partial detail view of such a locking system which comprises a movable member 7 'slidably mounted in a direction perpendicular to the upright, under the action of a clamping jack Vcl' and able to pass from a first retracted position, to a second locking position in which the movable member 7 'simultaneously penetrates two coaxial vertical grooves respectively belonging to the chocks of the lower and upper working rolls (not shown).
- the movable member 7 ' is slidably mounted in a jumper 70' rigidly secured to the block of the bending cylinders, itself secured to the inner wall of an amount of the holding cage.
- the cylinder body of the clamping cylinder is articulated to a support 7 secured to the side wall of the upright, the piston rod of the clamping jack Vcl secured by means of a pivot connection to the movable member 7.
- the control end of travel of the movable member 7 also requires the use of electrical limit switches contacts (not shown).
- Such a clamping system is preferred in that it makes it possible to lock / unlock rapidly the axial displacement of the chocks of the working rolls, namely the rolls which are most often removed from the rolling mill for grinding.
- Clamming systems of the same type are used to lock the chocks of the support rollers, which, however, require less frequent maintenance than the working rolls.
- the aim of the invention is to improve such systems for clamping the chocks of work rolls, which function automatically, in particular with a view to reducing costs.
- the invention arose from the finding of the inventor that, in such Quarto rolling mills, the automatic clamoring systems of the state of the art use hydraulic cylinders Dedicated, associated with electric contact stroke purposes, for locking or unlocking the axial displacement of the chocks of the work rolls and the support rolls.
- the invention arose from the desire of the inventor to design a clamping system of the working rolls that do not require dedicated cylinders for its operation, nor dedicated electric limit switches.
- the invention relates to a rolling mill 1, in particular of the Quarto type, for metal strip comprising a holding cage 2, comprising two pairs of uprights, at the two ends of the cage between which are provided a set of superimposed rolls, with substantially axes. parallel, comprising two working rolls 3,4, lower and upper, defining the passage gap, and two bearing cylinders 5,6 respectively lower and upper, intended to respectively bear on the working rolls of the opposite side to that of the passing gap.
- Each working or bearing cylinder has two ends, typically called journals, rotatably mounted, each on a bearing carried by a chock 30, 40, 50, 60.
- the rolling mill further comprises guide means between the chocks 30, 40, 50, 60 of the cylinders and the holding cage 2, according to the clamping plane. These guide means may comprise sliding surfaces between the chocks and the frame (in particular the uprights) of the holding cage 2.
- each chock 30 of the upper working cylinder 3 has two sliding plates 31, parallel and opposite, distributed on either side of the axis of rotation of the working roll 3, cooperating with two sliding plates 27 , respectively rigidly secured to the uprights of the same pair at one end of the holding cage
- each chock 40 of the lower working cylinder 4 has two sliding plates 41, parallel and opposite, distributed on either side of the axis of rotation of the working roll 4, cooperating with the sliding plates 27, respectively rigidly secured to the uprights of the same pair at one end of the holding cage.
- the two sliding plates 27 are respectively secured on the internal walls of two blocks of the camber cylinders Vc3, Vc4, themselves respectively secured by their outer wall to the two inner walls of the amounts of the same pair of studs. the cage.
- each chock 50 of the upper support cylinder 5 may have two sliding plates 51, parallel and opposite, distributed on either side of the axis of rotation of the support cylinder 5, cooperating with sliding plates 25 rigidly secured to the uprights of the same pair at one end of the holding cage, and - each chock 60 of the lower support cylinder 6 may have two sliding plates 61, parallel and opposite, distributed on either side the axis of rotation of the support cylinder 6, cooperating with sliding plates 26 rigidly secured to the uprights of the same pair at one end of the holding cage.
- the rolling mill also comprises means for applying a clamping force between the chocks of the support rolls, typically comprising hydraulic cylinders Vs.
- hydraulic cylinders Vs which can be two in number, can be arranged in the lower part of the support cage. maintaining and taking support respectively on the two chocks 60 of the lower support cylinder 6, as shown for information in Figure 1. According to an embodiment not shown, these hydraulic cylinders Vs can still be provided in the upper part of the cage 2 and support respectively on the chocks of the upper support cylinder.
- the rolling mill further comprises a system for clamping the chocks 30, 40 of the working rolls 3 and 5, or even a system for clamping the chocks 50, 60 of the support rollers 5, 6.
- the invention is concerned here more particularly with the clamping system of the working rolls, which is a system with automatic operation, in that it is the rolls of the rolling mill which are most frequently removed from the mill for grinding.
- the clamping system of the support cylinders 5 and 6, which require less frequent maintenance, may be of the manual locking / unlocking type.
- the clamping system of the working rolls comprises mechanical means that can pass from a first retracted position PI, allowing the removal of the working cylinders 3.4 from their axis on their axis from the holding cage 2 towards a second blocking position P2 ensuring the blocking of the chocks 30, 40 relative to the holding cage, along the axis of the cylinder.
- said mechanical means use:
- said mechanical means comprise at least one movable member 7, sliding along an amount of the holding cage 2, under the action of the opening or closing movements of the holding cage 2.
- the movable member 7 extends in length, following an amount of the holding cage 2, for example received in a groove depth of the inner wall of a post, the movable member 7 being able to slide in a race limited in this groove.
- This movable member 7 comprises a locking end 71, which in said second locking position P2 mechanical means simultaneously enters a vertical groove 32 of one of the chocks 30 of a working cylinder 3 and in a vertical groove 28 secured to of the amount of the holding cage 2: the locking end 71 received simultaneously in these two grooves 28, 32 opposite thus ensures the locking of the chock with respect to the holding cage 2, along the axis of the working roll.
- the locking end 71 is retracted out of the groove 32 of the chock 30 thus releasing the axial displacement of the cylinder and to allow the removal of the cylinder out of the holding cage .
- the movable member 7 may have at its other longitudinal end, a coupling portion 72 to the chock 40 of the working roll 4 located on the other side of the scroll plane of the metal strip, said coaching chord, lower or greater, and cooperating with a complementary coupling portion of the driving chock. This coupling of the movable member 7 makes it possible to synchronize the vertical displacement of the movable member 7 with the driving chock during the opening or closing movements of the holding cage 2.
- Figure 4 illustrates by way of non-limiting example, the presence of two movable members 7, respectively mounted to slide internally along the two amounts of the holding cage.
- These two movable members 7 are, in their first retracted position PI, at the end of low stroke in said open position of the holding cage for which the chock 30 of the upper working cylinder is spaced from the chock 40 of the cylinder lower work piece, the upper chock 30 resting by two protruding side portions of the chock on two support rails R3 of the holding cage, the lower chock 40 resting by two protruding side portions of the chock on two other rails R4 support of the support cage.
- the locking end 71, in the upper part of the movable member 7 is disengaged from the groove 32 (left or right) of the chock 30 of the upper work roll 3.
- the upper work roll 3 and its chocks 30 can be taken out of the rolling mill, by sliding the chocks 30 along the support rails R3, in particular by means of an extraction system and known carriages. in itself by the skilled person.
- the coupling portion 72 of the movable member 7, at its lower end is detachably secured to the chock 40 of the lower work roll 4.
- the lower work roll 4 and his chocks 40 may be removed from the rolling mill, by sliding the chocks 40 along the support rails R4 by means of an extraction system and trolleys known per se to those skilled in the art
- the coupling portion 72 of the movable member 7 and the complementary coupling portion of the driving chock can thus comprise a groove / rib system respectively belonging to the chock 40 and the movable member 7, or vice versa.
- This coupling portion 72 of the movable member is positioned, at the end of the stroke, in said open position of the holding cage, in a position relative to the support rails R4 so as to allow the coupling / decoupling of the lower end of the movable member to the driving chock during the loading / unloading of the work roll along the support rails.
- the driving chocks are the chocks 40 of the lower working roll 4, the moving member 7 being positioned, in the said open position of the holding cage 2, end of the low stroke under the effect of gravity at a position relative to the support rails R4 so as to allow the coupling / uncoupling of the lower end of the movable member 7 to the driving chock during loading / unloading the work roll along the support rails R4.
- Said mechanical means of the clamping system thus comprise, for the clamming / declaiming of the chocks 30 of the upper work roll 3, one or preferably several movable members 7 whose locking ends 71 secure the chocks of said work roll.
- Said mechanical means of the clamping system may also comprise, for the clamping / declaiming of the chocks 40 of the other working cylinder 4, lower, protruding portions 8, rigidly secured to the uprights of the holding cage and the lateral portions 42 of the chock 40, which in said second locking position P2 mechanical means, in the closed position of the holding cage, are overlapped so as to block the axial displacement of the working roll 4.
- these parts 8 and 42 are disengaged (one above the other) and so as to release the axial displacement of the working cylinder 4, in the open position of the holding cage.
- said projecting portions 8 which extend from the uprights, are seen towards the inside of the window. These projections 8 are located above the two projecting lateral portions 42 of the chock 40 of the lower working cylinder 4, in said open position of the holding cage.
- the raising of the lower work roll ensures the positioning of the two projecting portions 8 in overlap with said lateral portions 42 of the chock 40 of the lower work roll 4, and as illustrated in FIG. FIG. 5 blocks the possibility of displacement of the lower work roll 4, along the axis of the roll, the projecting portions 8 constituting physical stops for the chock 40, along the axis of the lower work roll 4.
- the there may be two projections 8 per upright, one blocking the chock in one direction, the other blocking the chock in the opposite direction.
- the illustrated embodiment is a rolling mill whose hydraulic cylinders Vs (of said means for applying a clamping force between the chocks of the support rolls) are located at the lower end of the feed cage. maintenance.
- the rolling mill comprises means for applying vertical bending forces to the work rolls 3,4, comprising two sets of hydraulic cylinders Vc3, Vc4 which may be double acting cylinders, and each having a fixing end intended to be threaded into a groove complementary to the chock of a working cylinder.
- Each chock 30 or 40 comprises two fixing grooves, arranged on either side of the axis of the cylinder 6 or 4, parallel to the axis of the cylinder, and machined at two projecting lateral parts of the chock
- the fixing end not only allows the jack Vc3 or Vc4 to exert a thrust force on the chock 30 or 40, but also a tensile force thanks to the shape of the complementary groove which prohibits the withdrawal of the enlarged end of the cylinder rod by the groove inlet.
- the piston cylinder of the hydraulic cylinder Vc3 cambering the upper chock 30 and the piston cylinder of the hydraulic cylinder Vc4 bending the lower chock 40 can be machined in the same block.
- One of the walls of the block is attached laterally to an inner wall of a post, and the other wall can be the support of the sliding plate 27, for vertical guidance of the upper chock 30 and the chock lower 40
- the groove slidably receiving the movable member 7 may be provided, in depth of the upright, between the upright and this block, the locking end 71, and the coupling portion 72 at the other distal end of the organ mobile 7 being respectively above and below this block.
- the rolling mill comprises a clamping system 9 of the chocks of the support cylinders can pass from a retracted state, allowing the withdrawal along their axis of the support rolls out of the holding cage to a state of blocking ensuring the locking of the chocks with respect to the cage, along the axis of the cylinder, while allowing the sliding of the chocks along the guide means, along the clamping plane.
- This clamping system 9 may comprise vertical grooves of the chocks 50, 60 of the upper support rollers 5 and the lower support roll 6, as well as locking members 90, mounted sliding horizontally. Each locking member can move from a position where it enters the vertical groove of the chocks 50 or 60, blocking the axial displacement of the support cylinder, to a retracted position where the axial displacement is released. Given the maintenance frequency of the support cylinders, the clamping system can be manual, the passage from the retracted position to the locking position is manual being obtained by actuating a handle 91.
- R.3, R4, R6 Support rail. Upper Work Cylinder, Upper Work Cylinder, and Lower Support Cylinder.
- Vs. Hydraulic cylinders (means for applying a clamping force between the chocks of the support rolls),
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Jigs For Machine Tools (AREA)
- Machine Tool Units (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1652265A FR3048899B1 (fr) | 2016-03-17 | 2016-03-17 | Laminoir pour bande metallique |
PCT/FR2017/050620 WO2017158306A1 (fr) | 2016-03-17 | 2017-03-17 | Laminoir pour bande metallique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3429769A1 true EP3429769A1 (fr) | 2019-01-23 |
EP3429769B1 EP3429769B1 (fr) | 2020-04-29 |
Family
ID=55808747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17714872.3A Active EP3429769B1 (fr) | 2016-03-17 | 2017-03-17 | Laminoir pour bande metallique |
Country Status (6)
Country | Link |
---|---|
US (1) | US10882089B2 (fr) |
EP (1) | EP3429769B1 (fr) |
CN (1) | CN108778541B (fr) |
ES (1) | ES2808001T3 (fr) |
FR (1) | FR3048899B1 (fr) |
WO (1) | WO2017158306A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109760872B (zh) * | 2019-03-28 | 2023-12-05 | 江苏星基智能装备有限公司 | 电线卷自动扎带机 |
EP4163027A1 (fr) | 2021-10-05 | 2023-04-12 | Primetals Technologies Limited | Cage de laminoir et procédé de changement d'un ensemble rouleau de travail correspondant |
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DE2254735A1 (de) * | 1972-11-09 | 1974-05-22 | Krupp Gmbh | Quartowalzgeruest |
DE2554486A1 (de) * | 1975-12-04 | 1977-06-08 | Schloemann Siemag Ag | Walzgeruest mit einem fuer den walzenwechsel vorgesehenen ausfahrschlitten |
GB1589299A (en) * | 1976-11-02 | 1981-05-13 | Loewy Robertson Eng Co Ltd | Rolling mill stand |
EP0059417B1 (fr) * | 1981-02-28 | 1985-01-02 | Sms Schloemann-Siemag Aktiengesellschaft | Cage de laminoir |
JPS5954402A (ja) * | 1982-09-22 | 1984-03-29 | Mitsubishi Heavy Ind Ltd | 多段式圧延機 |
JPH05293521A (ja) * | 1992-03-24 | 1993-11-09 | Marotta Scient Controls Inc | 圧延機 |
FR2733171B1 (fr) * | 1995-04-19 | 1997-07-04 | Clecim Sa | Laminoir a grande ouverture |
US6408667B1 (en) * | 2000-10-26 | 2002-06-25 | Bethlehem Steel Corporation | Four-high mill stand roll change device, a method of retrofit, and a roll change device therefrom |
CN1358452A (zh) * | 2000-12-13 | 2002-07-17 | 谭振平 | 内调味豆制品 |
JP3330371B1 (ja) * | 2002-03-12 | 2002-09-30 | 有限会社大野設計事務所 | 圧延機用ロール組替装置 |
DE10223000A1 (de) * | 2002-05-24 | 2003-12-04 | Sms Demag Ag | Verfahren und Vorrichtung zum Wechseln von Arbeitswalzenpaaren und/oder Stützwalzenpaaren an Walzgerüsten |
FR2851942B1 (fr) * | 2003-03-05 | 2006-04-28 | Procede de changement de configuration d'un laminoir et laminoir perfectionne pour la mise en oeuvre du procede | |
DE102009037665A1 (de) * | 2009-08-14 | 2011-02-17 | Sms Siemag Ag | Vorrichtung zum Handhaben und/oder Transportieren von Walzen eines Walzgerüsts |
TR201906213T4 (tr) * | 2010-12-02 | 2019-05-21 | Primetals Tech France Sas | Bir hadde tezgahının silindirlerinin ve/veya takımlarının değiştirilmesi için ekipman ve usul; bir kilitleme ve sıkıştırma sistemini içeren bir hadde tezgahı. |
CN104438347A (zh) * | 2014-11-08 | 2015-03-25 | 马钢(集团)控股有限公司 | 一种四辊轧机换辊标高调整装置快速更换方法 |
-
2016
- 2016-03-17 FR FR1652265A patent/FR3048899B1/fr not_active Expired - Fee Related
-
2017
- 2017-03-17 US US16/084,990 patent/US10882089B2/en active Active
- 2017-03-17 CN CN201780018074.XA patent/CN108778541B/zh active Active
- 2017-03-17 ES ES17714872T patent/ES2808001T3/es active Active
- 2017-03-17 EP EP17714872.3A patent/EP3429769B1/fr active Active
- 2017-03-17 WO PCT/FR2017/050620 patent/WO2017158306A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
ES2808001T3 (es) | 2021-02-25 |
US20190022722A1 (en) | 2019-01-24 |
US10882089B2 (en) | 2021-01-05 |
CN108778541A (zh) | 2018-11-09 |
WO2017158306A1 (fr) | 2017-09-21 |
FR3048899A1 (fr) | 2017-09-22 |
CN108778541B (zh) | 2020-05-01 |
FR3048899B1 (fr) | 2019-05-31 |
EP3429769B1 (fr) | 2020-04-29 |
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