EP0738546B1 - Walzwerk mit grosser Öffnung - Google Patents

Walzwerk mit grosser Öffnung Download PDF

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Publication number
EP0738546B1
EP0738546B1 EP19960400848 EP96400848A EP0738546B1 EP 0738546 B1 EP0738546 B1 EP 0738546B1 EP 19960400848 EP19960400848 EP 19960400848 EP 96400848 A EP96400848 A EP 96400848A EP 0738546 B1 EP0738546 B1 EP 0738546B1
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EP
European Patent Office
Prior art keywords
roll
working
chock
chocks
cylinders
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Expired - Lifetime
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EP19960400848
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English (en)
French (fr)
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EP0738546A1 (de
Inventor
Bernard Dumas
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Clecim SAS
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Kvaerner Metals Clecim SA
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Publication of EP0738546A1 publication Critical patent/EP0738546A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
    • 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
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B1/026—Rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B2003/001—Aluminium or its alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals

Definitions

  • the subject of the invention is a rolling mill in which the opening of the working cylinders can be adjusted to a large amplitude which can, for example, exceed 300mm for laminating product with very thick varied and applies in particular to roughing cages and to the rolling of aluminum or other metals not ferrous.
  • a rolling mill generally includes a cage fixed having two uprights spread between which are at least two working cylinders with axes substantially parallel and placed substantially in a clamping plane transverse to the direction of travel of the product and which generally constitutes a median plane from the cage.
  • the so-called quarto rolling mills include four superimposed cylinders, respectively two working rolls extending on either side of a passage plan of the product to be laminated and associated, respectively, with two support cylinders.
  • intermediate cylinders are interposed between each working cylinder and the corresponding support cylinder.
  • each working cylinder may be associated with several support cylinders arranged symmetrically on either side of the clamping plane.
  • Each cylinder is rotatably mounted around its axis, on bearings carried by two support chocks strung respectively in two windows arranged in the two amounts of the cage.
  • Clamping means such as screws or jacks, bearing on the cage, exert a vertical force of tightening of cylinders for rolling the product passing between the working cylinders. That is why the chocks of each cylinder are mounted sliding, parallel to the clamping plane, each between two flat guide faces provided respectively on either side of said clamping plane on both sides of the corresponding window of the cage. As the support cylinders have a large diameter, the corresponding guide faces are generally provided directly on the corresponding amount of the cage. On the other hand, the working cylinders having a smaller diameter, their chocks are smaller and the corresponding guide faces, which are more tightened, are generally arranged on two blocks side fixed on both sides of the window and which extend inwardly projecting therefrom.
  • cylinders are used for this purpose. hydraulics placed on either side of each chock and leaning in one direction on a lateral part forming a support ear for the chock and in the other, on the guide block resting on the fixed cage and in which are the camber cylinders with their hydraulic circuit, the guide blocks being called, for this reason, hydraulic blocks.
  • the clamping cylinders maintain working cylinder spacing corresponding to the thickness to be given to the product and the bending cylinders which act on the positions respective chocks are used simply to correct flatness defects.
  • the cylinders placed on the blocks hydraulics determine a so-called cambering effect positive, corresponding to a spacing of the chocks of the two working cylinders and other cylinders, taking support on the fixed cage or on the chocks of the cylinders of support determine a so-called negative cambering effect of working cylinders, corresponding to an approximation of their chocks.
  • Such a possibility of axial sliding is also useful for adjusting the distribution of effort rolling to the width of the product by axial displacement relative working cylinders or cylinders intermediates, in the case of a sexto rolling mill such as described, for example, by document EP-A-059.417, already cited.
  • the camber cylinders housed in the fixed hydraulic blocks rest on parts intermediates mounted vertically and on which support the chocks, with a possibility of horizontal sliding to allow axial displacement of the cylinder.
  • chocks must therefore be ensured, not only in the vertical direction, parallel to the plane of tightening, for adjusting the air gap, but also in the horizontal direction, parallel to the axes of the cylinders, to allow removal and placement, by axial sliding of the pair of working cylinders.
  • the chocks of the two working cylinders must be kept between the guide faces provided on the two blocks hydraulic.
  • the object of the invention is to solve these problems thanks to a new assembly of chocks which allows to guide them over a long race without complicating the arrangement of the cambering means and hydraulic circuits.
  • the arrangement according to the invention makes it possible to limit parasitic friction and keep a simple window geometry with reduced width and, therefore, without weighing down the columns of the cage.
  • the invention therefore generally applies to any rolling mill of known type including, inside of a cage having two uprights apart, at least two working cylinders with substantially parallel axes, defining an air gap for the product to be laminated along a substantially horizontal passage plane and rotatably mounted around their axis, each in two chocks strung in windows respectively corresponding in the two amounts of the cage, said chocks being slidably mounted each between two plane guide faces parallel to a clamping plane passing substantially through the axes of the working cylinders, and arranged on both sides of the corresponding window.
  • Such a rolling mill is also associated with means for bending at least one of the cylinders of work including, for each chock, at least two hydraulic cylinders placed on either side and each other of the chock, each in a support piece attached to the corresponding side of the window and forming a hydraulic block, each hydraulic cylinder having a body formed in said support piece and a piston associated with a rod, slidably mounted in the body, parallel to the clamping plane and supported by a lateral support part of the chock.
  • the support piece of at least one cylinder bending of at least one of the working cylinders includes a portion for holding the rod of said cylinder which engages in a corresponding recess provided on the side of the chock of said cylinder to a bottom forming the support part of the jack, and said side of the slab is limited, on either side of said recess, by two plane sliding faces capable of slide along two mating guide faces formed on the corresponding side of the window, on either side of said part holding part of support.
  • each side of the chock is provided with a U-shaped sliding face open on the plane side passage of the product and comprising a central part spanning the width of the chock at the bottom of the recess, and two lateral branches between which engage the rod holding part of the cylinder.
  • the level of one of the cylinders work is substantially constant
  • the level of the other cylinder can vary for the adjustment of the air gap
  • the rod of each adjustable cylinder camber cylinder is sliding mounted in the support piece on a height at least equal to the adjustment amplitude of the air gap and said support piece comprises a part sliding support of the cylinder rod, engaging, on the adjustment height, in a chock recess of the adjustable cylinder and a part forming the body of the cylinder, placed at the level of the chock of the fixed cylinder.
  • each support piece of at least one bending cylinder advantageously comprises two parts extending respectively on either side of the plane of passage of the product, respectively a narrow part of sliding support of the rod or cylinders cambering, which engages in a recess of the chock corresponding to a first working cylinder and a large part in which the body of the bending cylinders and which is laterally limited by a sliding guide face of the chock second working cylinder, the latter being associated with camber cylinders housed in said wide part of the support piece.
  • the two working cylinders are associated with cylinders positive camber determining the spacing of their chocks and arranged in pairs of two opposite cylinders, the inside of two support pieces placed respectively on either side of the clamping plane passing substantially through the axes of the cylinders.
  • each support piece can be provided with at least one common bore forming the body two opposite cylinders whose rods are supported respectively, in opposite directions, on the chocks of the two working cylinders.
  • a single room can be placed between the two pistons of the two opposite cylinders and supplied with oil for the simultaneous actuation of said cylinders.
  • the bore common to the two cylinders can also be separated by a partition into two supplied chambers separately for the individual actuation of each of the two opposite cylinders.
  • the opening of working cylinders can be adjusted to a large race for the passage of very thick products different, the holding part of the support piece extending over a height at least equal to the stroke maximum opening to ensure sliding support in any position the working cylinders of the bending cylinders over the entire opening stroke.
  • the working cylinder associated with the part of holding the support piece can advantageously be away from the product passage plane to a position maximum lift for which the recesses side of the chocks are entirely clear of corresponding holding parts of the two pieces of support, said working cylinder being removable from the cage by displacement parallel to its axis in said maximum lifting position.
  • the chocks from the working cylinder can rest on the chocks of the lower working cylinder, for simultaneous removal of the two cylinders by axial sliding, for example, by means of two support pads placed on the side and on the other side of the clamping plane and projecting towards the bottom in the space between the chocks, each chock of the lower working cylinder being provided with two conjugate studs extending upwards.
  • the studs upper and lower are also offset axially relative to each other by a certain distance, in the working position of the cylinders and everyone commits, in this position, to accommodation formed on the opposite side of the other chock to allow the approximation of chocks during adjustment of the opening stroke while in the position maximum opening, said pads are likely to lean on each other after axial shift of one of the cylinders relative to the other by the distance between the studs, to allow simultaneous removal of two cylinders resting on each other.
  • Figure 1 which is a partial side view, shows the cylinder arrangement of a rolling mill type quarto comprising, inside a cage 1, two working rolls 2, 2 'placed on either side of a horizontal plane P1 of passage of a product to be laminated A and taking support respectively, on the side opposite the product, each on a support cylinder 3, 3 '.
  • each cylinder is provided, at its ends, of journals 21, 31 mounted to rotate, of as shown in Figures 4 and 5, in bearings 22 housed in support chocks, respectively 4, 4 'of the working cylinders 2, 2' and 5, 5 'of the support cylinders 3, 3'.
  • These are mounted sliding inside windows 10 provided respectively in the two uprights 1 of the cage.
  • Cylinders 12 mechanical or hydraulic, are mounted at the top of the two uprights 1 of the cage and bear, respectively, on the chocks 5 of the upper support cylinder 3, to apply a clamping force which determines the rolling of the product between the working rolls 2, 2 ', the chocks 5' of the lower support cylinder 3 bearing, in the direction opposite, on fixed shims of adjustable height, not shown in Figure 1.
  • the lower working cylinder 2 ' has a substantially constant level corresponding to the plane of passage of product A, the jacks 12 acting in the two directions on the upper support chocks 5 for adjust the width of the air gap between the cylinders work 2, 2 'depending on the thickness of product A and the desired thickness reduction.
  • chocks 4, 4 ′ of the two cylinders are associated with positive camber cylinders 61 placed in hydraulic blocks 6 and susceptible to determine a relative spacing of each pair chocks 4, 4 'for bending the cylinders of work 2, 2 '.
  • each hydraulic block is consisting of a support piece 6 fixed on the two sides 11, 11 'of window 10 and in which are formed bores 60 with vertical axis constituting the body of positive cambering cylinders 61.
  • the part also includes supply and return circuits oil, not shown in the figure.
  • the jacks 6 are at single effect, the negative cambering being ensured, so also known, by cylinders 52, 52 'housed in bores 53 arranged in the support chocks 5, 5 'and bearing respectively on chocks 4, 4 'of working cylinders in the negative direction of approximation of said chocks.
  • the lower working cylinder 2 ' whose level does not vary, generally, only slightly, rose from the usual way, its 4 'chocks having faces side 44 'which can slide along faces of guide 63 provided on the lower part of the parts support 6, 6 'and parallel to the clamping plane P2 passing through the axes of the cylinders.
  • each lower chock 4 ' is provided with parts widened 45 'forming support ears which extend below the hydraulic blocks 6 and 6 'and on which are supported, in the direction of the spacing of the plane P1, cylinders 62 for positive cambering of the lower cylinder 2 ', respectively housed at the bottom of each bore 60, opposite cylinders 61.
  • the camber cylinders upper 61 have a very large stroke allowing adapt to a large air gap width, so that the thickness of product A can vary over a large amplitude.
  • the bore 60 b which constitutes the body of the jack 61 upper camber extends over a longer length large than the top 6b so that in retracted position, the piston 61a of the cylinder 61 is placed at the below the P1 plane, that is to say inside the lower part 6a of the hydraulic block 6, for example substantially at the axis of the working cylinder lower 2 '.
  • the rod 61b of the actuator upper arch 61 can have a great length, much greater than the adjustment range of the air gap, and it is perfectly guided at its bottom by piston 61a and at its upper part by a seal annular 64b which seals the end bore 60b.
  • the guide faces 63 of the 4 'lower working chocks are provided, classic way on the lower parts 6a of the blocks hydraulic 6.
  • the chocks 4 of the cylinder working top 2 are slidably mounted along guide faces 13, 13 ′ formed directly on the lateral sides 11, 11 'of the corresponding window 10 of the amount 1 of the cage.
  • the upper part 6b of the piece of support 6 used to hold the rod 61b of each cylinder 61 can engage in a recess 41 formed on each lateral side of the chock 4 and extending up to a bottom 42 placed at a certain distance from the face upper 43 of the chock.
  • each top chock 4 which slides along the guide faces 13, 13 ′ of the window have each an inverted U shape, open on the plane side passage P1 and comprising a central part 44a (figure 3) extending over the entire width of the chock above from the bottom 42 of the recess 41, and two lateral branches 44b limiting the two sides of the recess 41 and between which engage the upper part 6b of the part support 6 used to hold the rod of each cylinder 61.
  • the upper part 6b of the same part 6 should only show resistance simply sufficient for sliding support of the rods cylinders 61. Consequently, the width a of the part upper support 6b, depends only on the number and the section of the camber cylinders and the thickness of metal required and can therefore be substantially less than the width b of the chock 4 so that the two branches 44b of the sliding face 44 cover sufficient area to guide pestle it without undue hardship.
  • the upper part 45 of the chore 4 passing to the above the bottom 42 of the recess 41 therefore constitutes a support lug for positive camber cylinders 61 on which can lean in the opposite direction, the negative cambering cylinders 52 housed in the chock upper support 5.
  • the width of the recess 41 is a little greater than the width a of the upper part 6b of the hydraulic block 6, so that leave a slight clearance between the side faces of it and the internal faces of the two branches 44b.
  • this nesting can usefully be used to keep the working cylinder 2 centered in the clamping plane P2.
  • the provision which has just been described does not provide any discomfort when removing working cylinders for maintenance or replacement.
  • the chocks 4 'of the working cylinder 2' are, in service, supported by 52 'camber cylinders negative.
  • the rolling mill comprises means 7 for maintenance of the relative spacing of the chocks of the working rolls 2, 2 'in a position of maximum lifting of the upper cylinder 2 for which the chocks 4 of it pass over the parts holding the hydraulic blocks 6b 6.
  • each top working chock 4 of the movable cylinder 2 is provided with two pads 70, 70 'placed on either side of the clamping plane P2 and which extend down into the space between the two cylinders, over a distance substantially equal to the half the maximum spacing.
  • Matching studs 71, 71 'placed on the lower working chocks 4 ' extend in the opposite direction, over the distance complementary.
  • the upper studs 70 and lower studs 71 are offset axially and can penetrate into recesses correspondents 46 ', 46 arranged respectively, in the opposite chocks 4 ', 4. In this way, as shown in the Figure 1, the pads 70, 71 do not interfere, in service, the adjustment of the air gap and the camber of the cylinders in one way or the other.
  • Figure 2 shows the cylinders in withdrawal position, the camber cylinders upper tucked in and upper chocks 4 bearing on the lower chocks 4 'by through the superimposed studs 70, 71.
  • the lower stud 70 is provided with a stud 72 which enters a corresponding blind hole in the end of the upper stud 70. This is why the cylinders 61 must lift the working cylinder higher 2 to a level slightly higher than the one indicated in figure 2 and for which it is possible to move the lower cylinder axially 2 'by a distance c corresponding to the offset of the studs 70, 71.
  • each lower stud 71 is exactly in the extension of a corresponding upper stud 70.
  • the chock upper 4 slightly lower the chock upper 4 so that the upper studs 70 come rest on the lower studs 71.
  • the upper camber cylinders 61 can then have returned and we are in the position shown in Figures 2 and 6.
  • each chock 4 of the cylinders of upper work 2 is provided with two studs 70, 70 ' placed symmetrically on either side of the plane of P2 clamping and which come to bear on the studs corresponding 71, 71 'of the working chocks 4'.
  • the upper working cylinder 2 thus rests on the lower working cylinder 2 'and can therefore be removed with it by axial displacement, the assembly resting on the rollers 14 which roll on the rails 15.
  • the positive camber cylinders are operated in reverse from a single pressure chamber 65 placed between the two pistons 61a, 62a. It would however be possible to place in the bore 60 a partition allowing limit two chambers supplied under pressure different so as to adjust asymmetrically the bending of the two working cylinders 2, 2 '.
  • the figures show an example of usual embodiment in which two jacks are used placed side by side for positive or negative bending but we could also use more cylinders by increasing the width a of the part of holding 6b or, on the contrary, a single cylinder centered in a median plan of the chock.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Claims (12)

  1. Walzwerk, bestehend innen in einem Walzgerüst mit zwei im Abstand angeordneten Walzständer (1), aus mindestens zwei Arbeitswalzen (2, 2') mit im wesentlichen parallelen Achsen, die ein Walzspalt zum Durchlauf des zu walzenden Walzgutes (A) gemäss einer wesentlich horizontalen Durchlaufebene P1 definieren und drehbeweglich um deren Achse montiert sind, und zwar jede auf in zwei entsprechende Fenster (10) der beiden Walzgerüstständer (1) eingeführten Einbaustücke (4, 4'), und diese Einbaustücke (4, 4') parallel zu einer im wesentlichen durch die Achsen der Arbeitswalzen (2, 2') verlaufende Anstellungsebene P2, und zwar jedes zwischen zwei ebenen beiderseits dieser Anstellungsebene P2 angeordneten Führungsflächen an beiden Seiten (11, 11') des entsprechenden Fensters (10) des Walzgerüstes (1) gleitend angeordnet sind, wobei dem Walzwerk Biegemittel mindestens je einer der Arbeitswalzen zugeordnet sind, die für jedes Einbaustück (4, 4') aus mindestens zwei jeweils beiderseits des Einbaustückes (4) angeordneten Hydraulikzylinder (61, 61'), jeder in einem auf der entsprechenden Seite (11, 11') des Fensters (10) befestigten, einen Hydraulikblock bildendes Abstützungsmittel (6), wobei jeder Hydraulikzylinder (61) ein in diesem Abstützungsmittel (6) angeordnetes Gehäuse (60) sowie einen Kolben (61a) mit einer Stange (61b) aufweist, der in dem Gehäuse (60) parallel zur Anstellungsebene gleitend montiert ist und ein seitliches Auflageteil (45, 45') des Einbaustückes (4, 4') beaufschlagt, dadurch gekennzeichnet, dass an jeder Seite der Anstellungsebene P2 das Abstützungsmittel (6) mindestens eines Biegezylinders (61) mindestens einer der Arbeitswalzen (2) ein Halteteil (6b) der Stange (61b) dieses Zylinders aufweist, das in eine entsprechende an der Seite (44) des Einbaustückes (4) dieser Arbeitswalze ausgebildete Aussparung bis zu einem Auflageteil (45) desselben eingreift, und dass diese Seite (44) des Einbaustückes beiderseits dieser Aussparung (41) durch zwei ebene Gleitflächen (44b) begrenzt ist, die entlang zusammengehörender Führungsflächen gleitbar sind, welche auf der entsprechenden Seite des Fensters (10), beiderseits dieses Halteteils (6b) des Abstützungsmittels (6) angeordnet sind. entsprechenden Seite des Fensters (10), beiderseits dieses Halteteils (6b) des Abstützungsmittels (6) angeordnet sind.
  2. Walzwerk nach Anspruch 1, dadurch gekennzeichnet, dass jede Seite (44) des Einbaustückes (4) der den Biegezylinder (61) zugeordnete Arbeitswalze (2) eine U-förmige zur Seite der Walzgut-Durchlaufebene hin geöffnete Gleitfläche aufweist und ein über die Breite des Einbaustückes (4) bei dem Auflageteil (45) sich erstreckendes Mittelteil (44a) und zwei Seitenschenkel (44b) umfasst, welche die Aussparung (41) zur Aufnahme des Halteteils (6b) der Stange (61b) des Zylinders (61) begrenzen.
  3. Walzwerk nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass, bei einem aus einer im wesentlichen in einer konstanten Höhe feststehenden Arbeitswalze (2') und einer einstellbaren Arbeitswalze (2), dessen Niveau über eine gewisse Einstellhöhe des Walzspaltes veränderbar ist, bestehenden Walzwerk, der Kolben (61a) und die Stange (61b) von jedem Biegezylinder der einstellbaren Arbeitswalze (2) in dem Abstützungsmittel (6) über eine mindestens der Einstellgrösse des Walzspaltes entsprechende Höhe gleitend montiert sind, und dass dieses Abstützungsmittel (6) ein gleitendes Halteteil (6b) der Zylinderstange, welches über die Einstellhöhe in eine Aussparung (41) des Einbaustückes der einstellbaren Arbeitswalze (2) eingreift und ein das Gehäuse des Zylinders (61) bildendes bei dem Einbaustück (4') der feststehenden Arbeitswalze (2') angeordnetes Teil (6a) aufweist.
  4. Walzwerk nach Anspruch 3, dadurch gekennzeichnet, dass jedes Abstützungsmittel (6) mindestens eines Biegezylinders (61) zwei sich beiderseits der Durchlaufebene P1 des Walzgutes (A) erstreckende Teile, und zwar ein schmales gleitendes Halteteil (6b) der Stange (61b) des bzw der Biegezylinder (61), das in eine Aussparung (41) des entsprechenden Einbaustückes (4) einer ersten Arbeitswalze (2) eingreift, und ein breites Teil (6a), in dessen inneren das Gehäuse des bzw der Biegezylinder (61) untergebracht ist und das seitlich durch eine gleitende Führungsfläche (63) des entsprechenden Einbaustückes (4') der zweiten Arbeitswalze (2') begrenzt ist, umfasst, wobei letztere in diesem breite Teil (6a) des Abstützungsmittels (6) untergebrachten Biegezylindern (62) zugeordnet ist.
  5. Walzwerk nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass den beiden Arbeitswalzen (2, 2') positive Biegezylinder zugeordnet sind, welche den Abstand der Einbaustücke (4, 4') bestimmen und als zwei entgegengesetzte Zylinder (61, 62) paarweise angeordnet sind, die sich innen in zwei beiderseits der im wesentlichen durch die Walzenachsen verlaufende Anstellungsebene P2 angeordneten Abstützungsmittel (6, 6') befinden.
  6. Walzwerk nach Anspruch 5, dadurch gekennzeichnet, dass jedes Abstützungsmittel (6) mindestens eine gemeinsame Bohrung (60) aufweist, die das Gehäuse zweier entgegengesetzter Zylinder (61, 62) bildet, wobei deren Stangen (61b, 62b) sich gegensinnig auf den Einbaustücken (4, 4') der beiden Arbeitswalzen (2, 2') abstützen.
  7. Walzwerk nach Anspruch 6, dadurch gekennzeichnet, dass jedes Abstützungsmittel (6) eine einzige zwischen den beiden Kolben (61, 62) der beiden entgegengesetzten Zylinder angeordnete Kammer (65) aufweist, die zur gleichzeitigen Betätigung dieser Zylinder (61, 62) mit Öl versorgt wird.
  8. Walzwerk nach Anspruch 6, dadurch gekennzeichnet, dass jede gemeinsame Bohrung (60) durch eine Wand in zwei Kammern getrennt ist, die zur individuellen Betätigung jedes der beiden entgegengesetzten Zylinder (61, 62) getrennt eingespeist werden.
  9. Walzwerk nach einem der vorangehenden Ansprüche, bei dem die Öffnung der Arbeitswalzen über einen weiten Hub zum Durchlauf von Walzgut mit sehr unterschiedlichen Stärken einstellbar ist, dadurch gekennzeichnet, dass das Halteteil (6b) des Abstützungsmittels (6) sich über eine mindestens dem maximalen Öffnungshub entsprechende Höhe erstreckt, um das gleitende Halten in jeglicher Stellung der Arbeitswalzen (2, 2') des bzw der Biegezylinder über den ganzen Öffnungshub zu gewährleisten.
  10. Walzwerk nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die dem Haltemittel (6b) des Abstützungsmittels (6) zugeordnete Arbeitswalze (2) von der Durchlaufebene P1 des Walzgutes bis zu einer maximalen Anhebungslage verfahrbar ist, in welcher die seitlichen Aussparungen (41) der Einbaustücke (4) von den entsprechenden Haltemittel (6b) der beiden Abstützungsmittel (6, 6') vollkommen freigesetzt sind, wobei die Arbeitswalze (2) in dieser maximalen Anhebungslage durch Verfahren parallel zu ihrer Achse aus dem Walzgerüst (1) herausnehmbar ist.
  11. Walzwerk nach Anspruch 10, dadurch gekennzeichnet, dass es zur gleichzeitigen Herausnahme durch axiales Gleiten der beiden Arbeitswalzen (2, 2') Abstützungsmittel (7) der Einbaustücke (4) der oberen Arbeitswalze (2) auf den Einbaustücken (4') der unteren Arbeitswalze (2') umfasst.
  12. Walzwerk nach Anspruch 11, dadurch gekennzeichnet, dass jedes Einbaustück der oberen Arbeitswalze (2) zwei Stützelemente (70, 70') aufweist, die beiderseits der Anstellungsebene P2 angeordnet sind und sich nach unten vorspringend in dem zwischen den Einbaustücken gebildeten Raum erstrecken, und dass jedes Einbaustück (4') der unteren Arbeitswalze (2') zwei zusammengehörende sich nach oben erstreckende Stützelemente (71, 71') umfasst, wobei diese oberen (70) bzw. unteren (71) Stützelemente in der Arbeitsstellung der Walzen in einem gewissen Abstand (c) axial zueinander versetzt sind und jede in dieser Lage in eine auf der gegenüberliegenden Fläche des anderen Einbaustückes (4', 4) angeordnete Aufnahme (46', 46) eingreift, um das Zusammenrücken der Einbaustücke beim Einstellen des Öffnungshubes zu ermöglichen, und dass diese Stützelemente in der Position maximaler Öffnung zur gleichzeitigen Herausnahme der beiden aufeinander liegenden Walzen in der Lage sind, sich nach dem axialen Versetzen einer der Walzen gegenüber der anderen um den Abstand (c) zwischen den Stützelementen (70, 71) gegenseitig abzustützen.
EP19960400848 1995-04-19 1996-04-19 Walzwerk mit grosser Öffnung Expired - Lifetime EP0738546B1 (de)

Applications Claiming Priority (2)

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FR9504665A FR2733171B1 (fr) 1995-04-19 1995-04-19 Laminoir a grande ouverture
FR9504665 1995-04-19

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EP0738546A1 EP0738546A1 (de) 1996-10-23
EP0738546B1 true EP0738546B1 (de) 1999-06-16

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Publication number Priority date Publication date Assignee Title
WO2012049183A1 (de) 2010-10-12 2012-04-19 Sms Siemag Ag Walzgerüst
FR3048899B1 (fr) * 2016-03-17 2019-05-31 Fives Dms Laminoir pour bande metallique
CN116274350B (zh) * 2022-12-09 2023-10-10 诸暨雅言科技有限公司 一种铜棒的辊轧成型设备及方法
CN117067748B (zh) * 2023-08-28 2026-02-27 深圳市博硕科技股份有限公司 一种精密铜箔泡棉组件的自动化制造装置
CN117123620A (zh) * 2023-09-07 2023-11-28 中冶京诚工程技术有限公司 工作辊平衡弯辊装置以及轧机系统
CN117066329B (zh) * 2023-10-17 2023-12-26 山东宏泰电器有限公司 冰柜门板加工用辊轧折边机

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Publication number Priority date Publication date Assignee Title
EP0059417B1 (de) * 1981-02-28 1985-01-02 Sms Schloemann-Siemag Aktiengesellschaft Walzgerüst
DE3627692A1 (de) * 1986-08-14 1988-02-25 Schloemann Siemag Ag Biege- und ausbalanciervorrichtung fuer axial verschiebbare arbeitswalzen eines quartowalzgeruestes
DE3815454A1 (de) * 1988-05-06 1989-11-16 Schloemann Siemag Ag Biege- und ausbalanciervorrichtung fuer axial verschiebbare walzen eines walzgeruestes
DE4314472A1 (de) * 1993-05-03 1994-11-10 Schloemann Siemag Ag Biegeblock zum Biegen der Walzen von Mehrwalzen-Walzgerüsten

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FR2733171A1 (fr) 1996-10-25
DE69602878D1 (de) 1999-07-22
DE69602878T2 (de) 2000-01-27
FR2733171B1 (fr) 1997-07-04
EP0738546A1 (de) 1996-10-23

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