EP3108978B1 - Cage de laminoir et procédé de laminage - Google Patents

Cage de laminoir et procédé de laminage Download PDF

Info

Publication number
EP3108978B1
EP3108978B1 EP16175233.2A EP16175233A EP3108978B1 EP 3108978 B1 EP3108978 B1 EP 3108978B1 EP 16175233 A EP16175233 A EP 16175233A EP 3108978 B1 EP3108978 B1 EP 3108978B1
Authority
EP
European Patent Office
Prior art keywords
chocks
roll
interposition element
linear actuators
rolling stand
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.)
Active
Application number
EP16175233.2A
Other languages
German (de)
English (en)
Other versions
EP3108978A1 (fr
Inventor
Andrea Dorigo
Massimo Ferro
Luca Sandrin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danieli and C Officine Meccaniche SpA
Original Assignee
Danieli and C Officine Meccaniche SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Danieli and C Officine Meccaniche SpA filed Critical Danieli and C Officine Meccaniche SpA
Publication of EP3108978A1 publication Critical patent/EP3108978A1/fr
Application granted granted Critical
Publication of EP3108978B1 publication Critical patent/EP3108978B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • 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
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
    • 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
    • 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
    • B21B2013/028—Sixto, six-high stands

Definitions

  • the present invention concerns a rolling stand, usable for example in apparatuses for hot rolling flat products, such as metal strip or sheet.
  • the rolling stands to which the present invention is applied can be the traditional or reversing type, without restricting the present invention.
  • a rolling stand and a rolling method according to the preamble of claim 1 and claim 12 respectively is e.g. known from US-A-3596490 .
  • Rolling stands are known, used in apparatuses for hot rolling flat products, which comprise at least two rolls between which a metal strip or sheet transits and is rolled as it advances.
  • Rolling stands are also known comprising four rolls, that is, a top work roll, a bottom work roll, a top back-up roll and a bottom back-up roll.
  • the rolls are supported at their respective ends by respective chocks installed sliding in an orthogonal direction with respect to the axial development of the rolls, on support structures or shoulders.
  • top back-up roll rests against the top work roll and the bottom back-up roll rests against the bottom work roll.
  • the top back-up roll and/or the bottom back-up roll are moved against the top work roll and/or the bottom work roll so as to define a predetermined and desired flexion of the latter, such as to contrast the deformation induced by the rolling force.
  • the predetermined movement of the top back-up roll and/or the bottom back-up roll is usually controlled by a linear actuator.
  • Reversing rolling stands are known for example, which have big apertures between the rolls, wherein the linear actuator is, as commonly called in the field, a hydraulic cap positioned in a lower part of a window of the shoulder, and which adjusts the position of the bottom back-up roll, whereas in the upper part of the window of the shoulder a screw-type mechanical adjustment can be positioned, which adjusts the position of the top back-up roll. Solutions are also known in which the position of the top back-up roll is also adjusted by a linear actuator or hydraulic cap.
  • Linear actuators can be the simple-effect or double-effect type.
  • the bottom back-up roll can be supported at the ends by first chocks 40.
  • the first chocks 40 are rested on the respective support structures, or shoulders 22.
  • Each shoulder 22 is also configured to allow a movement of the first chocks 40 in a direction orthogonal to the axis of the bottom back-up roll 24.
  • the linear actuators 30 are installed on the shoulders 22, and provide to support, and possibly move the first chocks 40 along the shoulders 22 in a direction orthogonal to the axis of the bottom back-up roll 24. To this purpose, the linear actuators 30 are disposed with their actuation axis orthogonal to the axis of the bottom back-up roll 24.
  • linear actuators 30 can each comprise a support plate 12 attached in its upper part and on which one of the first chocks 40 rests.
  • thrust plates 14 are attached to the first chocks 40, situated in their lower part and which are positioned resting on the support plate 12.
  • One typical disadvantage of known rolling stands 10 is due to the fact that, during the rolling steps, a distributed load acts on the bottom back-up roll 24 which causes a thrust and leads it to bend downward.
  • the distributed load acting on the bottom back-up roll 24 is in turn transferred as a stress acting on the linear actuators 30.
  • the curvature to which the bottom back-up roll 24 is subjected causes the stresses acting on the linear actuators 30 to be discomposed into a stress acting axially to the linear actuator 30 and a stress acting transversely to the axis of the linear actuator 30, that is, tangential forces indicated by T in fig. 1 .
  • the overturning moment that acts on the linear actuators 30 can be discharged onto the sealing and guide elements 38 of the linear actuators 30, such as for example seals and guide bands, determining a premature wear and/or damage thereof, which compromises the hydraulic seal of the linear actuators 30, leading to oozing or leakages of oil.
  • the overturning moment acting on the linear actuators 30 can also be discharged on the elements that make up the linear actuators 30, such as for example pistons 34 and jackets 32, damaging and/or deforming them, even permanently.
  • documents US-A-3.596.490 and DE-A-38.26.544 describe a solution in which, between each linear actuator and each support chock of the bottom back-up rolls, a plate is interposed, selectively movable along a wedge-type profile to adjust the positioning height of the chock.
  • the wedge-type profiles are integrally associated with the linear actuators and therefore stresses acting on the plate are directly discharged onto the linear actuators since the wedge-type profiles do not allow a reciprocal sliding of the surfaces.
  • Another purpose of the present invention is to obtain a rolling stand that requires fewer maintenance interventions compared with known solutions.
  • one purpose of the present invention is to obtain a rolling stand that allows to reduce or even eliminate the tangential forces that generate overturning moments on the linear actuators.
  • Another purpose of the present invention is to obtain a rolling stand that is practical and efficient.
  • Another purpose of the present invention is to obtain a rolling stand that is reliable and long-lasting.
  • one purpose of the present invention is to obtain a rolling stand that is simple and economical.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
  • a rolling stand for a rolling apparatus comprises a support structure and a roll supported at the opposite ends by respective chocks.
  • the chocks are installed sliding on the support structure at least in a direction orthogonal to the axial development of the roll.
  • At least two linear actuators are associated to the support structure each of which is configured to move a respective chock on the support structure in said direction.
  • the rolling stand comprises at least one interposition element, conformed as a plate that extends between both the linear actuators and both the chocks. Furthermore, the interposition element is interposed, in contact, between the linear actuators and the chocks.
  • the interposition element extends between both the linear actuators and both the chocks, the tangential stresses that are discharged through the chocks are completely absorbed by the interposition element and are not transferred onto the linear actuators, damaging them.
  • the single interposition element associated with the chocks of a roll is in fact able to absorb the tangential stresses generated by the two opposite chocks, which are the same entity but have different senses, and is able to reciprocally cancel them.
  • the interposition element is a separate element, independent from the linear actuator and the chock, and is not mechanically constrained thereto with mechanical connection means.
  • the rolling stand comprises at least one interposition element positioned resting on the at least one linear actuator. Moreover, the at least one chock is in turn positioned resting on the at least one interposition element.
  • the interposition element is an element that is not firmly clamped to the components that interface with it.
  • connection elements could be provided, so as to constrain the interposition element, in said direction of movement of the chocks, to one or another of either the linear actuator or the chock, without compromising the efficiency thereof, since they do not alter the degrees of freedom required for a correct functioning.
  • the interposition element is positioned resting on the chock and the linear actuator is configured to thrust the interposition element.
  • the present invention also concerns a rolling method according to claim 12.
  • the stress acting on the roll is transferred from the chocks to at least one interposition element interposed between the linear actuators and the chocks. Furthermore, the stress components parallel to said direction are absorbed by the linear actuators, while the stress components orthogonal to said direction are absorbed by the interposition element.
  • Fig. 2 is used to describe example embodiments of a rolling stand 10, used in a rolling apparatus to hot roll flat products 19, such as metal strip or sheet advancing between two rolling stands 10 in a direction of advance R according to the arrow in fig. 2 .
  • the rolling stand 10 is provided with a support structure 25 comprising one or more shoulders 22, for example two shoulders 22, opposite each other.
  • a rolling stand 10 can comprise at least two opposite rolls between which the flat product 19 is compressed during its advance in the direction of advance R, to be rolled.
  • Each roll is installed with its opposite ends on one of the shoulders 22 of the support structure 25 by connection and support means, also called chocks.
  • the chocks are configured to support the rolls rotatably around their axis of rotation.
  • the chocks are each configured to support the ends of the rolls on the support structure 25, so as to dispose their axes of rotation X all substantially parallel to each other and possibly lying on a common lying plane.
  • each shoulder 22 of a rolling stand 10 defines a window 23 in which the chocks can be installed.
  • the rolling stand 10 comprises a bottom work roll 28 and a top work roll 29 disposed respectively below and above the plane identified by the flat product 19.
  • the rolling stand 10 can comprise a bottom back-up roll 24 and a top back-up roll 26, disposed respectively below and above the plane identified by the flat product 19.
  • the bottom work roll 28 and the top work roll 29 can be disposed between the bottom back-up roll 24 and the top back-up roll 26, so that the top back-up roll 26 rests on the top work roll 29, the latter resting on the bottom work roll 28 and this, in turn, resting on the bottom back-up roll 24.
  • the bottom work roll 28, the top work roll 29, the bottom back-up roll 24 and the top back-up roll 26 are cylindrical in shape with an oblong development in a direction parallel to their respective axes of rotation X.
  • the bottom work roll 28, the top work roll 29, the bottom back-up roll 24 and the top back-up roll 26 are installed on the support structure 25 so as to dispose their axes of rotation X parallel and all lying on a common lying plane Z.
  • the lying plane Z is located transversely, in this case orthogonal to the direction of advance R of the flat product 19.
  • the axes of rotation X of the bottom work roll 28, the top work roll 29, the bottom back-up roll 24 and the top back-up roll 26 can be installed on the support structure 25 disposing their axes of rotation distanced from each other and not lying on a common lying plane, to define a rolling stand 10 also called, in technical terms, crossing rolling stand.
  • the bottom back-up roll 24, the top back-up roll 26, the bottom work roll 28 and the top work roll 29 are supported at their respective ends by chocks, that is, respectively by first chocks 40, second chocks 41, third chocks 48 and fourth chocks 49.
  • the chocks or at least some of the first chocks 40, second chocks 41, third chocks 48 and fourth chocks 49 are installed on the support structure 25, for example in correspondence with the shoulders 22.
  • the chocks or at least some of the first chocks 40, second chocks 41, third chocks 48 and fourth chocks 49 are installed slidingly in a direction D orthogonal to the axis of rotation X of the rolls and to the direction of advance R, that is, in a direction parallel to the lying plane Z.
  • first chocks 40, second chocks 41, third chocks 48 and fourth chocks 49 can comprise at least first support elements 42, such as by way of example hydraulic bearings, configured to support the respective rolls rotatingly around their axis of rotation X.
  • first chocks 40, second chocks 41, third chocks 48 and fourth chocks 49 can also comprise second support elements 44, possibly cooperating with the first support elements 42, and which are configured to allow the rolls to rotate around their respective axes of rotation X and to contain the axial stresses that can occur on the latter.
  • second support elements 44 can be thrust bearings.
  • the first support elements 42 and the second support elements 44 can allow the bottom back-up roll 24 and the top back-up roll 26 to rotate around their respective axis of rotation X.
  • At least two linear actuators 30 are associated with the support structure 25, each configured to move a respective chock of at least one of the rolls in a direction D orthogonal to the axial development of the latter and orthogonal to the direction of advance R of the flat product 19.
  • two linear actuators 30 are provided, associated on two opposite sides of the support structure 25 and each of which is configured to at least move, and possibly support, one of the support chocks of the respective roll on the support structure 25 in said direction D.
  • a rolling stand 10 comprising two linear actuators 30 associated on two opposite sides of the support structure 25 and each of which is configured to support and move one of the two first support chocks 40 of the bottom back-up roll 24.
  • the linear actuators 30 are associated on two opposite sides of the support structure 25 and each of them is configured to move the two second support chocks 41 of the top back-up roll 26.
  • a substantially symmetrical structure is defined of the rolling stand 10, with respect to the flat product 19 and what is shown in fig. 2 .
  • the first chocks 40 of the bottom back-up roll 24 are disposed resting on the support structure 25.
  • the rolling stand 10 comprises only the bottom work roll 28 and the top work roll 29, and not the top and bottom back-up rolls described above.
  • the two linear actuators 30, associated on the two opposite sides of the support structure 25, are each configured to support and move one of the two third chocks 48 of the bottom work rolls 28.
  • the two linear actuators 30 are associated on two opposite sides of the support structure 25 and are configured to move the two fourth support chocks 49 of the top work rolls 29.
  • the rolling stand 10 comprises not only the bottom work roll 28 and the top work roll 29, but also two or more top back-up rolls and/or two or more bottom back-up rolls.
  • a solution can be provided, for example, in which two bottom back-up rolls act on the bottom work roll and two top back-up rolls act on the top work roll.
  • the at least one linear actuator 30, in this case both, are installed on the support structure 25 so as to dispose their axes of actuation substantially orthogonal to the direction of advance R of the flat product 19 and to the axes of rotation X of the rolls.
  • the linear actuators 30 can comprise a jacket 32, a piston 34 and a flange or head 36.
  • the piston 34 is provided to slide inside the jacket 32.
  • the flange 36 closes the jacket 32 by attachment elements, with the effect of containing inside it the fluid for driving the piston 34.
  • the piston 34 can comprise sealing elements 38 such as elastic bands which surround it circumferentially and which rest against the internal cavity of the jacket 32, obtaining a hydraulic seal.
  • At least one support plate 12 can be attached to the upper part of each linear actuator 30.
  • At least one thrust plate 14 can be attached to the lower part of each first chock 40.
  • the rolling stand 10 comprises at least one interposition element 20 which extends between both the linear actuators 30 associated with a roll, in this case shown with the bottom back-up roll 24.
  • the interposition element 20 is positioned resting on both the linear actuators 30.
  • both the first chocks 40 are positioned resting on the interposition element 20.
  • the interposition element 20 is interposed between the linear actuators 30 and the first chocks 40 but is not constrained to them, that is, it is not attached to the linear actuators 30 or the first chocks 40, but is only put in contact therewith.
  • the interposition element 20 is conformed as a plate.
  • the interposition element 20 extends continuously above the linear actuators 30, covering at least the distance that separates them.
  • the interposition element 20 has a main development in a direction parallel to the direction identified by the axes of rotation X of the rolls.
  • the contact zone of the linear actuators 30 and the chocks with the interposition element 20 is of limited size, and smaller than the overall surface development of the interposition element 20. This solution allows to reduce the friction forces acting between the interposition element 20, the linear actuators 30 and the chocks.
  • the first chocks 40 are positioned in contact with, in this case resting on, the interposition element 20 with the thrust plates 14.
  • the thrust plates have a contact surface with the interposition element 20 that has a smaller extension in size than the interposition element 20.
  • the interposition element 20 can comprise a central body 21 provided with a central segment 11 and expansions 15, greater in thickness than the central segment 11, provided at the ends of the central segment 11 and in correspondence with which the first chocks 40 are disposed resting.
  • the expansions 15 thicken the contact zone between the first chocks 40 and the interposition element 20 and between the linear actuators 30 and the interposition element 20, to supply a reinforcement that increases the mechanical resistance to stresses to which the latter is subjected.
  • one or more first contact elements 16 can be attached to the interposition element 20, which during use face toward and are positioned in contact with, in this case resting on, the linear actuators 30, for example on the support plate 12.
  • one or more second contact elements 18 can be attached to the interposition element 20, positioned in contact in this case, on which the first chocks 40 rest, for example with their thrust plate 14.
  • the support plate 12, the thrust plate 14, the first contact element 16 and the second contact element 18 can be made of anti-wear materials, that is, with very hard materials, to allow to resist the wear to which they are subjected during use. Moreover, the support plate 12, the thrust plate 14, the first contact element 16 and the second contact element 18 are removably attached to the first chocks 40, to the interposition element 20 and to the linear actuator 30, to allow them to be replaced.
  • the expansion 15 can also be suitable to supply a solid base on which to constrain the first contact element 16.
  • expansion 15 can also be suitable to supply a solid base on which to constrain the second contact element 18.
  • the interposition element 20 can also comprise a covering end 17, attached to or made in a single body on a plane substantially transverse to that identified by the central body 21.
  • the covering end 17 is attached on the perimeter of the interposition element 20.
  • the distributed load L acting on the bottom back-up roll 24, determines a flexion of the latter, which tends to bend.
  • the effect of the curvature also affects the first chocks 40 that support the bottom back-up roll 24.
  • the bottom back-up roll 24 tends to incline the first chocks 40, taking the vertical axis of the first chocks 40, that is, the axis along which the first chocks 40 are moved, to rotate by an angle ⁇ on the lying plane Z ( fig. 4 ).
  • the interposition of the interposition element 20 between the first chocks 40 and the linear actuators 30 allows to discharge the tangential forces T, preventing the linear actuators 30 from being loaded with forces and generating an overturning moment.
  • the tangential forces T that act on a first chock 40 are substantially equal and in the opposite sense compared with the tangential stresses acting on the first chock 40 provided to support the opposite end of the bottom back-up roll 24. This causes a reciprocal cancellation of the tangential forces T that are completely absorbed by the interposition element 20. This condition occurs even more if the distributed load L acts on the bottom back-up roll 24 substantially symmetrically with respect to the center line of the axial length of the bottom back-up roll 24. This condition of stress avoids having to associate lateral containing means with the interposition element 20 to prevent the tangential forces T that arise from displacing the interposition element 20 transversely, in a direction parallel to the axis of rotation X.
  • the interposition element 20 is not allowed to make translation movements in a direction parallel to the axis of rotation X, but is allowed to make only vertical movements in the direction of the vertical axis, in order to allow to discharge the stresses acting axially on the linear actuators 30, that is, parallel to said direction D.
  • the interposition element 20 is provided with lateral containing elements to contain possible lateral movements of the interposition element 20 to which it may be subjected due to the tangential stresses.
  • the interposition element 20 can be associated with containing and guide elements 46 which allow to move the interposition element 20 only in a direction parallel to said direction D and instead block its movement in a direction parallel to the axis of rotation X or in directions different from said direction D.
  • the containing and guide elements 46 can be installed on the support structure 25 and therefore allow to discharge the tangential forces T to which the interposition element 20 is possibly subjected.
  • the containing and guide elements 46 comprise at least a guide pin 50 and a guide cavity 51 in which the guide pin 50 is slidingly positioned, guided and controlled.
  • the guide pin 50 and guide cavity 51 are provided on the interposition element 20 and respectively on a fixed part of the rolling stand 10, for example in correspondence with the support structure 25, or vice versa to define a substantially dual guide configuration.
  • the guide pin 50 is attached to the interposition element 20 protruding cantilevered with respect to the latter, for example in correspondence with a perimeter edge thereof.
  • the guide cavity 51 is made on a support bracket 52, attachable to the support structure 25, in this case to the shoulder 22.
  • the guide pin 50 slides guidedly in the guide cavity 51, constrained to remain substantially parallel to the vertical axis Z.
  • the guide pin 50 can also be configured to prevent a movement of the interposition element 20 in a direction other than that defined by the vertical axis Z, that is, other than said direction D.
  • interposition element 20 has been described as associated with the bottom back-up roll 24, that is, to the chocks 40 and the linear actuators 30 associated with the bottom back-up roll 24, it is not excluded that the interposition element 20 can be associated with one or the other or a combination of the top back-up roll 26, the bottom work roll 28 or the top work roll 29, or the respective chocks and actuators associated with them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Metal Rolling (AREA)

Claims (12)

  1. Cage de laminoir comprenant une structure de support (25) et au moins un cylindre (24 ; 28) supporté aux extrémités opposées par des empoises respectives (40), lesdites empoises (40) étant installées coulissant sur ladite structure de support (25) dans au moins une direction (D) orthogonale au développement axial dudit cylindre (24), et deux actionneurs linéaires (30) étant associés sur deux côtés opposés de ladite structure de support (25), et chacun desdits actionneurs linéaires (30) étant configuré pour se déplacer l'une desdites empoises (40) sur ladite structure de support (25) dans ladite direction (D), caractérisée en ce qu'elle comprend un premier élément d'interposition (20) conçu sous la forme d'une plaque et qui s'étend à la fois entre lesdits actionneurs linéaires (30) et lesdites empoises (40), ledit premier élément d'interposition (20) étant interposé, en contact, entre lesdits actionneurs linéaires (30) et lesdites empoises (40).
  2. Cage de laminoir selon la revendication 1, caractérisée en ce que ledit premier élément d'interposition (20) est positionné en appui sur lesdits actionneurs linéaires (30), et en ce que lesdites empoises (40) sont positionnées en appui sur ledit premier élément d'interposition (20).
  3. Cage de laminoir selon la revendication 1, caractérisée en ce que ledit élément d'interposition (20) est positionné en appui sur lesdites empoises (40) et en ce que lesdits actionneurs linéaires (30) sont configurés pour pousser ledit élément d'interposition (20).
  4. Cage de laminoir selon l'une quelconque des revendications précédentes, caractérisée en ce que ledit élément d'interposition (20) est mobile uniquement dans ladite direction (D) et est contraint dans son déplacement dans une direction parallèle à l'axe de rotation (X) dudit cylindre (24).
  5. Cage de laminoir selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une plaque de poussée respective (14), positionnée en contact avec ledit élément d'interposition (20), est fixée à chacune desdites empoises (40).
  6. Cage de laminoir selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un ou plusieurs premiers éléments de contact (16) sont fixés audit élément d'interposition (20) et font face, en utilisation, aux actionneurs linéaires (30) et sont en contact avec ceux-ci.
  7. Cage de laminoir selon la revendication 6, caractérisée en ce qu'un ou plusieurs seconds éléments de contact (18) sont fixés audit élément d'interposition (20) et positionnés en contact avec les premières empoises (40).
  8. Cage de laminoir selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comprend un cylindre de travail inférieur (28) et un cylindre de travail supérieur (29) supportés aux extrémités par des empoises respectives (48, 49) et entre lesquels, en utilisation, passe un produit plat (19) devant être laminé.
  9. Cage de laminoir selon la revendication 8, caractérisée en ce qu'un actionneur linéaire respectif (30) est associé à au moins les empoises de support (48) dudit cylindre de travail inférieur (28), et en ce que ledit au moins un élément d'interposition (20) est interposé entre lesdites empoises (48) et ledit actionneur linéaire (30).
  10. Cage de laminoir selon la revendication 8, caractérisée en ce qu'elle comprend un cylindre d'appui inférieur (24) et un cylindre d'appui supérieur (26) entre lesquels sont disposés le cylindre de travail inférieur (28) et le cylindre de travail supérieur (29) et supportés aux extrémités par des empoises respectives (40, 41), en ce qu'un actionneur linéaire respectif (30) est associé au moins aux empoises de support (40) dudit cylindre de support inférieur (24), et en ce que ledit au moins un élément d'interposition (20) est interposé entre lesdites empoises (40) et ledit actionneur linéaire (30).
  11. Cage de laminoir selon l'une quelconque des revendications précédentes, caractérisée en ce que des éléments de confinement et de guidage (46) sont associés audit au moins un élément d'interposition (20) et sont configurés pour permettre un déplacement dudit élément d'interposition (20) uniquement dans une direction parallèle à ladite direction (D), lesdits éléments de confinement et de guidage (46) comprenant au moins une broche de guidage (50) et une cavité de guidage (51) dans laquelle la broche de guidage (50) est positionnée, guidée et commandée de manière coulissante, ladite broche de guidage (50) et ladite cavité de guidage (51) étant prévues sur ledit élément d'interposition (20) et respectivement sur une partie fixe de la cage de laminoir (10), ou inversement.
  12. Méthode de laminage d'un produit plat (19) avec au moins un cylindre (24 ; 28) qui fournit un support aux extrémités opposées dudit cylindre (24 ; 28), avec des empoises respectives (40) sur une structure de support (25) et pour déplacer sélectivement lesdites empoises (40) sur ladite structure de support (25), avec des actionneurs linéaires respectifs (30) dans une direction (D) orthogonale au développement axial dudit cylindre (24), lesdits actionneurs linéaires (30) étant associés sur deux côtés opposés de ladite structure de support (25), caractérisée en ce que la contrainte agissant sur ledit cylindre (24 ; 28) est transférée desdites empoises (40) vers au moins un élément d'interposition (20) interposé entre lesdits actionneurs linéaires (30) et lesdites empoises (40), conçu sous la forme d'une plaque et s'étendant entre les deux actionneurs linéaires (30) et lesdites empoises (40), et en ce que les composants de ladite contrainte parallèles à ladite direction (D) sont absorbés par lesdits actionneurs linéaires (30), tandis que les composantes de ladite contrainte orthogonale à ladite direction (D) sont absorbées par ledit élément d'interposition (20).
EP16175233.2A 2015-06-26 2016-06-20 Cage de laminoir et procédé de laminage Active EP3108978B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUB20151719 2015-06-26

Publications (2)

Publication Number Publication Date
EP3108978A1 EP3108978A1 (fr) 2016-12-28
EP3108978B1 true EP3108978B1 (fr) 2019-02-20

Family

ID=54251631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16175233.2A Active EP3108978B1 (fr) 2015-06-26 2016-06-20 Cage de laminoir et procédé de laminage

Country Status (2)

Country Link
EP (1) EP3108978B1 (fr)
CN (1) CN106269875B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016219723A1 (de) * 2016-10-11 2018-04-12 Sms Group Gmbh Schrägwalzwerk
CN112845588A (zh) * 2019-11-27 2021-05-28 林秉谕 辗压设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1602176A1 (de) 1967-09-13 1970-04-02 Schloemann Ag Walzgeruest,insbesondere zum Auswalzen von Blechen oder Baendern,bestehend aus einer Grobanstellung sowie einer Feinanstellung der Walzen unter Walzdruck
GB1521570A (en) 1976-11-24 1978-08-16 Ch Poli I Im Lenin Komsomol Automatic adjustment of the roll gap in a mill stand
DE3826544A1 (de) 1988-08-04 1990-02-15 Schloemann Siemag Ag Vorrichtung zum anstellen der in einbaustuecken gelagerten walzen von walzgeruesten
DE19831663A1 (de) 1998-07-15 2000-01-20 Schloemann Siemag Ag Vorrichtung und Verfahren zur Ermittlung und Festlegung von Gerüstmitte und Anstellpositionen an Walzgerüsten
DE10037004B4 (de) * 2000-07-29 2004-01-15 Sms Demag Ag Walzgerüst für bandkantenorientiertes Verschieben der Zwischenwalzen in einem 6-Walzen-Gerüst
US8413476B2 (en) * 2006-06-14 2013-04-09 Siemens Vai Metals Technologies Gmbh Rolling mill stand for the production of rolled strip or sheet metal
DE102009050710B4 (de) * 2009-10-26 2016-08-04 Sms Group Gmbh Drahtwalzgerüst mit Einzelantrieb

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN106269875A (zh) 2017-01-04
EP3108978A1 (fr) 2016-12-28
CN106269875B (zh) 2019-05-31

Similar Documents

Publication Publication Date Title
EP3108978B1 (fr) Cage de laminoir et procédé de laminage
KR101421978B1 (ko) 스트립 압연기용 가이드 장치
EP0067040B1 (fr) Laminoir
CN102164686B (zh) 轧制装置
US7913350B2 (en) Device for setting a brush onto a roll
AU737102B2 (en) Method to eliminate the play between chocks and relative support blocks in four-high rolling stands and relative device
CA2463075C (fr) Dispositif de laminage
US3398564A (en) Arrangement for counter-balancing the working rollers of a roller stand
JP2003534135A (ja) 金属、特に鋼材料のための連続鋳造設備内において、１つまたは多数のローラセグメントの圧接調節のための方法および装置
US9433985B2 (en) Feed roll assembly
US4676085A (en) Rolling mill for controlling the contour of a workpiece
KR100813481B1 (ko) 금속 스트립 재료의 열간 압연 또는 냉간 압연용 롤 스탠드
EP1943031B1 (fr) Dispositif de cintrage par rouleau
KR101151248B1 (ko) 롤 스탠드
JP4732752B2 (ja) 多重式ロールスタンド内における低摩擦撓みシステム
JP2013505139A (ja) モジュール的な案内装置
JP7352746B2 (ja) 圧延装置
JP2006500225A5 (fr)
GB1588247A (en) Driving apparatus for use in a strip rolling mill
JP7189346B2 (ja) 圧延装置
US20090064750A1 (en) Device for Adapting Working Rolls to a Rolling Line
RU2584099C1 (ru) Встроенное устройство изгиба и балансировки валков для клетей прокатного стана
CN110621421B (zh) 用于轧制金属物料的轧机机架
EP3108977B1 (fr) Cage de laminoir et procédé correspondant
JP3385413B2 (ja) 圧延設備のサイドガイド装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20160620

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180824

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016010022

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1097507

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190620

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190520

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190521

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190520

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190620

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016010022

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20191121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190630

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190630

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190630

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20160620

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230516

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230626

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20230601

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230620

Year of fee payment: 8