US3076360A - Clam shell cold rolling mill - Google Patents

Clam shell cold rolling mill Download PDF

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Publication number
US3076360A
US3076360A US756574A US75657458A US3076360A US 3076360 A US3076360 A US 3076360A US 756574 A US756574 A US 756574A US 75657458 A US75657458 A US 75657458A US 3076360 A US3076360 A US 3076360A
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Prior art keywords
mill
rolls
housing
beams
corner portions
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US756574A
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English (en)
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Sendzimir Tadeusz
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Individual
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Individual
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Priority to US756574A priority Critical patent/US3076360A/en
Priority to DES64431A priority patent/DE1187580B/de
Priority to GB2828/63A priority patent/GB988196A/en
Priority to CH96163A priority patent/CH425698A/fr
Priority to FR923099A priority patent/FR1361899A/fr
Priority to BE627714D priority patent/BE627714A/xx
Application granted granted Critical
Publication of US3076360A publication Critical patent/US3076360A/en
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    • 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
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/22—Hinged 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
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B21B31/04—Rolling stand frames or housings; Roll mountings ; Roll chocks with tie rods in frameless stands, e.g. prestressed tie rods
    • 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
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/26—Adjusting eccentrically-mounted roll bearings

Definitions

  • the mill housing ' (as can be seen in FIG. 8 of the above noted patent) is a solid casting, pierced in one horizontal direction by a passageway for the strip, and having an opening in the otherhorizontal direction, which contains the operating instrumentalities of ⁇ the mill.
  • This opening has to be very accurately machined all over its inside surfaces, the machining consisting for the most part in the precision boring of eight semi-circular trough-like conguratioris which, aside from being accurate "in diameter, must jbe parallel with each other with lextreme accuracy.
  • the interior construction of the mill is ⁇ complicated by the fact that ⁇ eccentric mountings for the so-called casters have to be provided for screwdown purposes.
  • a Vprimary.object of the invention is to provide a mill ofthe general type of that shown in Patent 2,776,586, which will V"have a housing substantially as accurate and rigid as the housing ofthe patented mill, and which will permit the use of working rolls of as small a diameter and as well supported, but which can be built at a substantially lessercost'. It is an object of theinvention to provide a mill in which the interior mechanism is more readily accessible for replacement or repair. It is an object vrof the invention to provide va mill in which a much wider rollopening can be attained. y
  • FIG. l is a side elevational view ofthe mill of this invention.
  • FIG..2a is an elevational view showing another mode of connecting the hydraulic cylinder to thelower housing member.
  • FIG. '2b is ⁇ a partial end elevation ofthe Vm'illtaken .from theleft side of FIG. 11.
  • FIG. 3 is a partial end View
  • FIG.4 a partial plan View of the table of a machinetool illustrating a mode 'of manufacture of the housing members ⁇ of the ⁇ mill Aof the present invention.
  • FIG. 5 is a longitudinal section :of the mill proper.
  • FIG. 6 is a transverse sectiontaken through'the mill proper along the section line 6-6 of FIG. 5.
  • the upper mill housing element 1 rests upon the lower housing element at one end by means of a hinge construetion indicated generally at 4.
  • This construction is termed a hinge because the upper mill housing element pivots on it for screwdown purposes; but it need not be such ahinge as would enable the top portion of the mill housing to be swung out of the way,'or through an angle of 90 or 180 on the hinge.
  • the hinge has an important function in maintaining the alignment of the upper housing portion of the mill with the lower housing portion.
  • the hinge as illustrated in FIG. 1 comprises two adjust# able block members 4a and 4b with approaching surfaces bearing cylindrical hollows indicated at 4c and 4d, ⁇ and a cylindrical member 4e engaged in these hollows.
  • ends willbe used to designate those portions which lie inthe direction of rolling, the face portionsof the mill which lie at 96 thereto being referred to as the .sidesf
  • a screwdown mechanism 5 is provided (see FIGS. 1 and 2b).
  • This construction together with the swivel connection 10, will permit 4a tilting of the upperv housing element 1 such as may be requiredfor ⁇ screwdown Patented Feb. 5, 17963v purposes.
  • the pintles may be removable, so that the entire upper portion of the mill, including the housing member 1, may be lifted off the lower portion and carried away, as by means of a crane.
  • tie rods, the hinge constructions, and the interengaging portions of the screwdown are located toward the sides of the mill, so as to permit passage of the strip 16 which is to be rolled.
  • the fluid pressure cylinder 7 is connected through suitable valve controls to an hydraulic system (not shown). So long as the force exerted by the cylinder 7 is greater than the roll separating force encountered during the rolling operation, pressure will be exerted on the hinge constructions 4 and on the screwdown constructions 5. Under these circumstances, the mill housing portions 1 and 2 will be accurately positioned because the preload eliminates all chances of play and of misalignment. Also, they will act in a more rigid manner, as hereinafter explained.
  • the two housing portions 1 and 2 will part slightly either at the hinge construction 4 or at the screwdown device 5, or both, thereby relieving the working and supporting rolls as well as the bearing elements of the mill from overload, and preventing damage to the mill.
  • the mill of this invention having as has been described separable housing elements 1 and 2, has certain inherent characteristics of rigidity in the side-to-side direction.
  • lf the upper housing element 1 as a result of rollseparating forces in the mill, should tend to deflect as a beam, its side portions 17 and 18 (as indicated in those figures) would tend to rotate counterclockwise and clockwise through minute angles corresponding to the deflection of the beam.
  • the line indicated at a represents a horizontal plane through the end portion 17 of FIG. 2b.
  • FIG. 2c represents a horizontal plane through the side portion 1S.
  • the dotted line b illustrates in an exaggerated fashion the counterclockwise rotation of the side portion 18 that would be caused by such a beam deflection.
  • Such rotation will be opposed by the action of the elements 4 and 5 because these elements are under pressure, and the pressures would be concentrated toward the outer portions of these elements.
  • the roll separating forces are transmitted to the four vertical columns of the mill housing in the form of tensional stresses.
  • the condition is one of compression.
  • the tie rods 11 to 13 exert a downward pull on the upper housing element 1 which is greater than the normal roll separating force.
  • the tie rods can all be elements of high tensile strength material and rather highly loaded, because their own elongation under tension is of no consequence, so far as the accuracy of the mill is concerned.
  • the cylinder 7, which exerts the pressure on the lower platen 9 by which the tensional forces are transmitted to the tie rods 11 to 13 inclusive, is affixed to the center of the lower housing element 2. Thus, it will tend to deflect the lower housing element 2 in directions opposite to those in which the roll separating forces tend to deflect it.
  • a deflection of the upper housing mem ber produced by the roll separating forces can be accomplished for by a deliberately produced deflection of the lower housing element 2 produced in the way just described.
  • this compensation can be controlled. In the first place, the forces exerted by the fluid pressure cylinder 7 can be increased or diminished, so long as their value continues to be greater than that of the roll separating forces.
  • the ability of the lower housing portion 2 to deflect under any given stresses can be controlled in the design of the mill by increasing or diminishing the cross section of the lower housing. It will be noted in the drawings hereto appended that the upper mill housing element 1 has been given a large cross sectional area so as to minimize transverse deflection, while the lower mill housing element 2 has a lesser cross sectional area to permit a compensating dellection produced by the cylinder 7.
  • the general relationship between the effective area of the cylinder 7 and the relative rigidity of the lower housing element 2 will be such that counterdeflection of the lower mill housing element will suffice as a corrective measure, making the mill much easier to operate, particularly in the selection and development of appropriate profiles in the strip material being rolled.
  • the deflection of the lower mill housing element 2 can be increased under any given pressure exerted by the fluid cylinder 7 by slightly crowning that base of the cylinder assembly which is aflixed to the flatly machined bottom of the housing element 2.
  • FIGURE 2a One way of doing this is illustrated in FIGURE 2a.
  • the hydraulic cylinder 7 does not bear directly against the lower mill housing 2, but upon thecentral por Vtion' of a beam 79 extending parallel with the work rolls,
  • the beam having near each end ⁇ abut-,ment screws 80 and 81 which contact the lower mill housing at spacedpoints ⁇ and transmit the pressure of thev cylinder thereto.
  • the distance between these abutment screws is preferably less than one-third of maximum width of strip accommodated by the mill; and of course they should be symmetrically disposed.
  • this ⁇ invention provides for the first time a controlled rigidity in a beambacked mill having a housing made in separable parts. It also provides means for compensating for deection in such a mill. With these provisions, it becomes feasible to construct the mill housing in two parts, and hence to take advantage of a mode of machining the interior surfaces of themill which involves a great lowering of cost.
  • This mode of manufacture is illustrated in FIGS. 3 and 4. In this mode of manufacture, both portions of the mill housing 1 and 2 are clamped on the table 20 of a precision machine tool. If the two housing portions are of the same eiective thickness, their machined backs may rest directly on the table.
  • one housing element If one housing element is thinner than the other, it will rest on the table through the intermediary of a suitable machined block ⁇ for the purpose of equalizing the heights.
  • the clamping ⁇ will be done in such a way that the positions of the four trough-shaped configurations of each mill housing section will be disposed in alignment as continuations of each other.
  • a template may be positioned on the table to guide the cutting.
  • the four trough-shaped configurations are indicated in FIG. 3 at 22, 23, 24 and 25.
  • the machine tool may be any suitably accurate ltype of planer-miller, a milling machine, or even a precision planing machine having an accurately guided table.
  • a tool is used which is centered at the end of each stroke on the surface of the template 21, and metal may be removed from both housing sections 1 and 2 in a concurrent operation with perfect assurance of parallelism of the trough-shaped configurations.
  • each hinge element comprises an upper block 28 and a lower block 29, these blocks having on their rear surfacesa vseries of machined serrations mating with the serrations 26 hereinabove de,- scribed.
  • the blocks are held to the housing members 1 and 2 by a series of bolts 30 and 31 which pass through slots in the blocks.
  • the approaching ends of the blocks are somewhat reduced as shown, and are recessed to receive the actual hinging element or pintle 4.
  • the ser.- rated structure which has been described permits the blocks 23 and 29 to be fastened to the housing members 1 and 2 in adjusted positions.
  • the construction is also of value in compensatingfor Iwear; and for changes in diameter of rolls, as where rolls are dressed or exchanged.
  • the screwdown hereinafter described takes care of the actual roll separation during the operation of the mill; but the mill is conveniently adjusted for overall thicknesses by means of the hinging construction.
  • the hinge ldesign permits the use of blocks and pins, both of which are made of relatively hard materials; and the diameter of the pintle 4 may be relatively small so'that its pivoting action, when opening and closing the roll bite of the mill, can be relatively frictionless.
  • the hinge construction preserves the alignment of the'mill housings in the direction of rolling so long as there is pressure between the'two housing elements. Lateral alignment of the two parts of the housingY can be accomplished in various ways.
  • These shafts are each provided with eccentric portions 3S and39, located near the sides ofthe mill, and out of theopath of the strip 16 whichris being rolled.
  • the eccentrics are preferably made in one piece with the shafts 32 and- ⁇ 33.
  • FIG. 3 there is shown alever arm splined to the Shaft 33.
  • This lever arm is pivoted to the piston rod 4d of anthydraulic cylinder 42, the opposite end of which is connected to the mill housing as at 43.
  • actuation ofthe cylinder 42 l will. rock the, Yshaft 33, actuating the eccentric portion thereof, and forcibly separating the shafts 32 and 33.
  • the shaft 33 is preferably provided with an hydraulic actuator at each side of the mill.
  • y f' l The treatment of the upper shaft 32 may be similar, in ⁇ that it may be provided with its own lever arms and hydraulic actuators attached tothe upper half of the mill housing. However, there lare otherfway's of treating the upper shaft. In FIG. 2 the left half.
  • the screwdown arrangement which has been described is negative in the sense that when actuated it ⁇ forces the housing members 1 and 2 apart at one end, these parts ao'faseo pivoting on the pintles 4 at the other end.
  • This type of screwdown is possible so long as the mill housings are under pressure from the hydraulic cylinder 7.
  • the screwdoiwn effect is attained with great accuracy and simplicity; and cost is saved in the interior of the mill because it is not necessary to provide eccentricity in connection with the saddles for screwdown purposes.
  • FIGS. 5 and 6 An exemplary internal arrangement for a mill of the present invention is indicated in FIGS. 5 and 6.
  • the two halves of the mill are the same, so that they can be described in common.
  • the working rolls 46 are of very small diameter, and they rest each against a pair of intermediate rolls 47. -For convenience herein, these rolls are called the first intermediate rolls. They rest against a series of three larger second intermediate rolls 48.
  • the second intermediate rolls in each half of the mill are backed by a set of four casters.
  • the supporting portions of these casters may be in the form of very heavy outer races 49 of roller bearings mounted on shafts 50.
  • the casters on each shaft are spaced lengthwise of the shaft, as most clearly shown in FIG. 6.
  • the shafts 50 are supported by saddle members 51, which saddles in turn bear -on the surfaces of the semi-circular machined troughs of the housing members heretofore described and designated by the index numerals 22 to 25.
  • the casters are grouped in assembly, each caster being disposed between two of the saddle members 51. All of the saddle members and the inner races of the caster bearings are held axially compressed on the shafts 50, as by nuts threaded on the ends of the shafts.
  • the saddle members have portions shaped to fit the semi-circular troughs, and other portions shaped to abut against or to clear saddle members in adjacent troughs.
  • all of the saddles 51 can be oriented in the same manner, and so located that they do not interfere with neighboring assemblies.
  • the nuts on the ends of the shafts 50 compress the inner races of the casters 49 so that they will not rotate by themselves; but during the course of the use of any mill, these inner races may be rotated from time to time, usually by about one-third of a revolution so as to get the full life out of the structures.
  • the shaft-holding portions of the saddles are all ground to the same inside diameters, and that the saddles themselves have the same outside diameters. Hence, they provide a spaced backing (with accurately machined casters) for the second intermediate rolls, and ultimately for the working rolls. Since screwdown is not accomplished in this mill by means of eccentric saddles or eccentric saddle shafts, the construction of the saddle and caster assemblies is substantially simplified and cheapened.
  • an adjusting means may be provided as indicated in FIG. 5.
  • This adjusting means comprises screws such as the screw 52, threaded in the housing, and bearing against a saddle member 53.
  • Each such screw may be fitted with a sliding head 54 which has precision marks to show its angular position.
  • Means are provided whereby each such screw can be engaged by a wrench or other turning device; and the screws are preferably provided with locking means (not shown) to inhibit accidental changes of rotative position.
  • One such screw is provided for each saddle in an outer saddle assembly of at least one housing assembly ofthe mill.
  • the screws 52 are disposed approximately in the line of greatest pressure of the saddles against the trough surface of the beam in which they are housed, which line of pressure in the outer saddle assemblies of the exemplary mill herein illustrated, lies very nearly in the horizontal plane.
  • the screws 52 are employed to adjust or control the crown or shape of the mill. In operation, the screws are not intended to lift the respective saddles entirely off their seats, but only slightly to relieve the pressure of the saddles against the seats, within the elastic limits of the parts. Turning any of the screws 52 inwardly will result in putting more pressure on the saddle contacted by that screw than on neighboring saddles, which is the way in which the crown or shape of the mill is adjusted, whenever such adjustment is necessary.
  • more elaborate and expensive beambacked mills more elaborate means have been devised for mill adjustment; but in the relatively inexpensive mill of this invention, the adjustment means above described has been found adequate.
  • the plates 6,1 and 62 carry vthe thrust bearings 55 and 56 for the rolls in each second intermediate series.
  • the same effect is accomplished in .the mill of this invention in a much simplified manner.
  • the simplification is based on the discovery, after long experimen tation, that it was not detrimental to the rolling operation to shift the ⁇ working rolls 46 along with the rs-t series intermediate rolls 47 in an axial or longitudinal direction.
  • the simplification is effected by placing the working roll and its adjacent supporting rolls of the first intermediate series in each half of the mill in a common drawen
  • the drawer elements are indicated at 65, 66, 67 ⁇ and 68 in FIG. 5. They comprise not only theillusltrated elements extending across the mill in spaces between the supporting rolls and the work piece, but also end elements indicated in FIG. 6 ⁇ at 69, 70, 71 and 72.
  • the intermediate rolls of the first series and the work rolls are either journaled in or have a thrust bearing against these end elements, the drawers thus constituting frames which are capable of being moved transversely of ⁇ the mill.
  • Bracket elements 73 and 74 are lattached respectively to the end mill plate 61 ⁇ and 62; and these ⁇ brackets bear threaded shafts 75 and 76,.
  • the end elements 71 and 72 of the respective drawers are provided with ⁇ fittings 77 and 78 (FIG. 6), each including a nut portion which is threaded -on one of the shafts 75 or ⁇ ,76. By turning either of these threaded shafts, its entire drawerincluding the working roll and the two intermediate rolls of the first series may be moved laterally of the mill.
  • At least one of the supporting rolls ⁇ of the first series in the upper half of the mill will have a taper relief near one of Vits ends, ⁇ and that at least one of the supporting rolls of the rst intermediateseries in the lower half of the mill will ⁇ have a taper ⁇ relief adjacent its other end.
  • the positions of ⁇ these tapered reliefs can be adjusted by turning the threaded ⁇ shafts 75 and 76 so as to bring the tapered reliefs into coincidence with the edges of material being rolled, ⁇ when the width of these materials is changed.
  • the threaded shafts arein a position of convenient access on ⁇ .the -operators side of the mill which makes it possible to observe the exact axial position of each drawer.
  • the -ttings ⁇ "I7 and 78 may conveniently carry pointers mov- ⁇ ing over ⁇ scales to indicate -the exact positions in the mill of the taper reliefs.
  • Those portions of the drawers which extend across the mill and are generally indicated at 65, 66, 67 and 68 in FIG. 5 may be shaped or enlarged in such fashion as to be disposed in a floating position on the first intermediate rolls 47 and the outer ones of the second intermediate rolls 48.
  • These portions of the drawers are preferably lined with ⁇ an anti-friction, usually plastic, material. They may be urgedslightly against the rolls aforesaid by any suitable spring elements.
  • the longitudinally extending drawer portions, or members attached to them, may be ⁇ Prforated or made hollow for the delivery of lubricant to the mill. They lare provided with suitable perforations to form jets of the lubricant, which is also a coolant.
  • Lubricant may be directed against the working rolls as theycontact the piece being rolled, and it may alsorbe injected between the casters into the space between the vari-ous supporting rolls so as to work -t-oward the workingrolls.
  • the locationV of the jets 4and the introduction of lubricant is important since this constitutes a means for maintaining the wheat balance of the mill, and of avoiding undue cXpansion of any of the mill elements from an unequal rise of temperature.
  • the discharge of cooling lubricant should be greater toward the cen-ter of ⁇ the rolls than near the edges of the strip being rolled; but
  • the exact number of jet-forming holes and their positions will depend on the type of mill, its size, the material being rolled, and other factors.
  • the lubricant normally issues from the mill at the level of the strip being rolled, .and may be filtered ⁇ and recirculated in any suitable fashion. Oil issuing from themill may be arranged -to be caught in the foundation box 3.
  • the interior portions of the mill of this invention are unusually accessible.
  • the hydraulic cylinder 7 may be so constructed and operated that it will lift the upper half of the mill to any desired height.
  • the hinge construction and the screwdown construction are separable vertically since they are required to sustain only compressive forces.
  • a lifting 'of the upper half of the mill by means of the hydraulic cylinder 7, the lower platen 9 and the tie rods 11 to 13 is suicient for all ordinary jobs of replacement and repair; but as indicated above, by disconnecting the tie rods, the entire upper housing member together with its appurtenances may be removed from the mill ⁇ and transported elsewhere.
  • a gbeambacked mill for rolling flat products, ⁇ comprising two separable beams, each having rotatable inner elements adapted to back a working roll throughout its working length, said beams having corner portions extending beyond the working length of the said working rolls, means interposed between the corner portions of the two beams at one side of said working rolls for maintaining said corner portions apart by a desired distance, said means acting as hinges for said beams, adjustable separators interposed between the corner portions of the two smesso beams at the opposite side of said working rolls, and pressure means for urging the two beams toward each other with a force in excess of the roll-separating force encountered in reducing a work piece between said working rolls, whereby the means interposed between the respective corners of said beams may be maintained under compression during a rolling operation.
  • a beambacked mill comprising two symmetrically disposed and substantially identical backing structures, each comprising a one-piece beam with parallel cavities in which cavities casters are supported for transferring rollseparating forces encountered by working rolls to said beams, said beams having corner portions located laterally of the path of travel of a strip of metal to be rolled between said working rolls, means interposed between the respective corner portions of the two beams for maintaining said beams in separated position, and means urging said beams together with a force greater than the rollseparating force encountered by said working rolls in reducing said strip, whereby to maintain the means interposed between said corner portions under compression.
  • a beambacked mill having two separable parts, each part comprising a beam generally rectangular in plan and having corner portions, a working roll, at least one set of intermediate rolls backing said working rolls, casters journaled in saddles and backing said intermediate rolls, said saddles being mounted in hollows extending from side to side in said beams, said mill parts being disposed in opposition to each other with said work rolls in alignment, an hydraulic cylinder and piston means engaging the outer central portion of the beam of one of said mill parts and the central portion of a platen, said platen having corner portions connected respectively by rods with corner portions of the beam of the other of said mill parts, said hydraulic cylinder and piston means being capable of exerting a force urging said mill parts together and greater than the roll separating forces exerted on said Working rolls during a rolling operation, separable abutment means interposed between the corner portions of said beams at one end of the mill and negative, continuously adjustable screwdown means interposed between the corner portions of said beams at the other end of said mill.
  • the said negative screwdown means comprises at least one eccentrically mounted shaft on each corner portion of an end of at least one of said beams and bearing on members attached to the corresponding corner portions of the other of said beams and means for adjusting and fixing the rotative portions of said shafts whereby to effect a negative screwdown.
  • abutment means connecting the corners of said beams at the opposite end of said mill each comprise abutment means 12 adjustably attached respectively to the ⁇ corner portions of said beams, said abutment means having approaching surfaces bearing cylindrical hollows, and a cylindrical member engaged in the hollows of approaching ones of said abutment members to provide a hinging action.
  • lever arms non-rotatably affixed to said eccentrically mounted shafts and hydraulic cylinder and piston means connected to said lever arms and to a support whereby said lever arms may be rocked and held in adjusted position.
  • each mill part has a first set of two intermediate rolls and a second set of three intermediate rolls, and wherein the mill drive is applied to the central roll of the second set of intermediate rolls in each mill part.
  • first intermediate rolls together with a working roll in each of the mill parts are provided with thrust bearings in a member slidable transversely of the mill, at least one of the first intermediate rolls of one mill pa-rt having a taper relief near its end and at least one of the first intermediate rolls of the other mill part having a taper relief near its opposite end, and means for moving said sliding members adjustably, whereby to bring said taper reliefs into coincidence with opposite side edges of varying widths of pieces being rolled.
  • a beambacked mill of the type having working rolls, intermediate rolls, casters, and saddles mounted in hollows extending from side to side of beam members extending across the mill, beam members which are separable from each other and which have corner portions, means at the respective corners 0f said beams for holding them apart by a desired distance determinative of screwdown, and means for urging said beams toward each other with a force greater than the roll separating force during a rolling operation, said last mentioned means comprising force exerting means for a reaction against the central portion of one of' the said beams and against the corner portions of the other of said beams whereby defiection in one vof said beams is compensated for at least in part by a sacrediection of the other of said beams in the same direction.
  • a mill of the type having working rolls, intermediate rolls, casters, and saddles respectively located in hollows in a pair of beams extending in the direction of the length of said working rolls, an elevated platform, said beams being generally rectangular in plan and having corner portions, one of said beams being mounted on said platform by means of its corner portions, an hydraulic 13 cylinder and piston means attached to the center portion of said beam and extending below said platform through a perforation therein, a platen engaging the lower end of said hydraulic cylinder and piston means and rods connesting corner portions of said platen with corner portions of the other of said beams, said last mentioned beam being located above the beam which is attached to said platiiorm, and abutment means located between the respective corners of said beams, the abutment means between the said corner portions at one end of said mill being adjustable for screwdown purposes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
US756574A 1958-08-22 1958-08-22 Clam shell cold rolling mill Expired - Lifetime US3076360A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US756574A US3076360A (en) 1958-08-22 1958-08-22 Clam shell cold rolling mill
DES64431A DE1187580B (de) 1958-08-22 1959-08-13 Mehrwalzen-Bandwalzwerk
GB2828/63A GB988196A (en) 1958-08-22 1963-01-23 Beam-backed cold rolling mills
CH96163A CH425698A (fr) 1958-08-22 1963-01-26 Laminoir
FR923099A FR1361899A (fr) 1958-08-22 1963-01-29 Laminoir à froid en deux parties
BE627714D BE627714A (fr) 1958-08-22 1963-01-29

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US756574A US3076360A (en) 1958-08-22 1958-08-22 Clam shell cold rolling mill
GB2828/63A GB988196A (en) 1958-08-22 1963-01-23 Beam-backed cold rolling mills
CH96163A CH425698A (fr) 1958-08-22 1963-01-26 Laminoir
FR923099A FR1361899A (fr) 1958-08-22 1963-01-29 Laminoir à froid en deux parties
BE627714 1963-01-29

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US3076360A true US3076360A (en) 1963-02-05

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US756574A Expired - Lifetime US3076360A (en) 1958-08-22 1958-08-22 Clam shell cold rolling mill

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US (1) US3076360A (fr)
BE (1) BE627714A (fr)
CH (1) CH425698A (fr)
DE (1) DE1187580B (fr)
FR (1) FR1361899A (fr)
GB (1) GB988196A (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355924A (en) * 1963-07-10 1967-12-05 Sendzimir Inc T Control of deflection in rolling mills and the like
US3373590A (en) * 1964-06-23 1968-03-19 Schloemann Ag Multi-roll stands for the cold-rolling of thin, hard strips
US3461704A (en) * 1966-12-29 1969-08-19 Textron Inc Cluster arrangement
US3466913A (en) * 1967-08-29 1969-09-16 Mckay Machine Co Strip working apparatus
US3818743A (en) * 1971-02-15 1974-06-25 Hitachi Ltd Rolling mills
US3857268A (en) * 1971-12-10 1974-12-31 Hitachi Ltd Rolling mill and rolling method
US3858424A (en) * 1972-01-28 1975-01-07 Hitachi Ltd Split type multistage rolling mill
US3902345A (en) * 1972-07-07 1975-09-02 Hitachi Ltd Control device for rolling mill
US3943742A (en) * 1973-08-24 1976-03-16 Hitachi, Ltd. Rolling mill
US3946587A (en) * 1973-12-06 1976-03-30 Davy-Loewy Ltd. Rolling mills
US4162627A (en) * 1972-07-17 1979-07-31 Hitachi, Ltd. Rolling mill
US4194382A (en) * 1976-11-26 1980-03-25 Hitachi, Ltd. Rolling mill
US4270377A (en) * 1978-05-19 1981-06-02 T. Sendzimir, Inc. Eighteen high rolling mill
US4487050A (en) * 1981-05-21 1984-12-11 Mitsubishi Jokogyo Kabushiki Kaisha Rolling mill
US5133205A (en) * 1990-11-13 1992-07-28 Mannesmann Aktiengesellschaft System and process for forming thin flat hot rolled steel strip
US5142896A (en) * 1989-11-25 1992-09-01 Sundwiger Eisenhutte Maschinenfabrik Cluster mill with hydraulic screw-down
US20090158802A1 (en) * 2007-12-20 2009-06-25 Remn-Min Guo Prestressed Rolling Mill Housing Assembley With Improved Operational Features
CN110202104A (zh) * 2019-05-27 2019-09-06 北京首钢国际工程技术有限公司 一种2+8辊组合式厚板坯大压下铸轧机气雾冷却装置
CN114728316A (zh) * 2020-01-22 2022-07-08 日本森吉米尔公司 多辊轧机
CN117066329A (zh) * 2023-10-17 2023-11-17 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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US1636057A (en) * 1926-04-21 1927-07-19 Jones Lloyd Rolling mill
US1787558A (en) * 1927-11-07 1931-01-06 Tinsman John De Witt Rolling mill
US1824211A (en) * 1928-05-02 1931-09-22 August F Jobke Rolling mill
US2027283A (en) * 1934-05-21 1936-01-07 William G Mcfadden Hydraulic roll adjuster mechanism
DE634346C (de) * 1934-03-20 1936-08-25 Robert Holdinghausen Richtmaschine mit auswechselbar angeordneten Richt- und Stuetzrollen
GB456721A (en) * 1935-04-11 1936-11-11 John Clubley Armstrong Improvements in connection with hydraulic presses
US2085449A (en) * 1934-08-23 1937-06-29 Rohn Wilhelm Multihigh rolling mill
FR832393A (fr) * 1937-02-10 1938-09-26 Krupp Fried Grusonwerk Ag Laminoir à plusieurs cylindres
US2169711A (en) * 1935-07-16 1939-08-15 American Rolling Mill Co Rolling mill adjustment
US2170732A (en) * 1934-08-30 1939-08-22 American Rolling Mill Co Rolling mill
US2237794A (en) * 1937-05-12 1941-04-08 American Rolling Mill Co Device for reducing sheet metal
US2368030A (en) * 1941-10-11 1945-01-23 Larsson Sven Multiple roll mill
US2479974A (en) * 1943-05-05 1949-08-23 Armzen Company Design and construction of rolling mills
US2566679A (en) * 1943-02-25 1951-09-04 Armzen Company Rolling mill and lubrication method and means therefor
US2680881A (en) * 1951-10-11 1954-06-15 Stanley G Mock Compression molding device
US2688891A (en) * 1949-10-25 1954-09-14 William R J Ballard Rolling mill
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DE645167C (de) * 1934-08-24 1937-05-22 Heraeus Vacuumschmelze Akt Ges Anstellvorrichtung
GB487759A (en) * 1937-02-10 1938-06-24 Krupp Fried Grusonwerk Ag A multiple rolling mill
DE945839C (de) * 1952-05-10 1956-07-19 Mannesmann Meer Ag Einrichtung zum Abstuetzen der Oberwalze mit einer Walzendrucksicherung in einem Kaltpilgerwalzwerk
DE1746531U (de) * 1956-01-25 1957-06-13 Demag Ag Sicherungseinrichtung fuer walzwerke, insbesondere kaltwalzwerke.

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US385437A (en) * 1888-07-03 baldwin
US1636057A (en) * 1926-04-21 1927-07-19 Jones Lloyd Rolling mill
US1787558A (en) * 1927-11-07 1931-01-06 Tinsman John De Witt Rolling mill
US1824211A (en) * 1928-05-02 1931-09-22 August F Jobke Rolling mill
DE634346C (de) * 1934-03-20 1936-08-25 Robert Holdinghausen Richtmaschine mit auswechselbar angeordneten Richt- und Stuetzrollen
US2027283A (en) * 1934-05-21 1936-01-07 William G Mcfadden Hydraulic roll adjuster mechanism
US2085449A (en) * 1934-08-23 1937-06-29 Rohn Wilhelm Multihigh rolling mill
US2170732A (en) * 1934-08-30 1939-08-22 American Rolling Mill Co Rolling mill
GB456721A (en) * 1935-04-11 1936-11-11 John Clubley Armstrong Improvements in connection with hydraulic presses
US2169711A (en) * 1935-07-16 1939-08-15 American Rolling Mill Co Rolling mill adjustment
FR832393A (fr) * 1937-02-10 1938-09-26 Krupp Fried Grusonwerk Ag Laminoir à plusieurs cylindres
US2237794A (en) * 1937-05-12 1941-04-08 American Rolling Mill Co Device for reducing sheet metal
US2368030A (en) * 1941-10-11 1945-01-23 Larsson Sven Multiple roll mill
US2566679A (en) * 1943-02-25 1951-09-04 Armzen Company Rolling mill and lubrication method and means therefor
US2479974A (en) * 1943-05-05 1949-08-23 Armzen Company Design and construction of rolling mills
US2776586A (en) * 1948-06-10 1957-01-08 Armzen Company Construction and control of cold rolling mills
US2688891A (en) * 1949-10-25 1954-09-14 William R J Ballard Rolling mill
US2680881A (en) * 1951-10-11 1954-06-15 Stanley G Mock Compression molding device

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355924A (en) * 1963-07-10 1967-12-05 Sendzimir Inc T Control of deflection in rolling mills and the like
US3373590A (en) * 1964-06-23 1968-03-19 Schloemann Ag Multi-roll stands for the cold-rolling of thin, hard strips
US3461704A (en) * 1966-12-29 1969-08-19 Textron Inc Cluster arrangement
US3466913A (en) * 1967-08-29 1969-09-16 Mckay Machine Co Strip working apparatus
US3818743A (en) * 1971-02-15 1974-06-25 Hitachi Ltd Rolling mills
US3857268A (en) * 1971-12-10 1974-12-31 Hitachi Ltd Rolling mill and rolling method
US3858424A (en) * 1972-01-28 1975-01-07 Hitachi Ltd Split type multistage rolling mill
US3902345A (en) * 1972-07-07 1975-09-02 Hitachi Ltd Control device for rolling mill
US4162627A (en) * 1972-07-17 1979-07-31 Hitachi, Ltd. Rolling mill
US3943742A (en) * 1973-08-24 1976-03-16 Hitachi, Ltd. Rolling mill
US3946587A (en) * 1973-12-06 1976-03-30 Davy-Loewy Ltd. Rolling mills
US4194382A (en) * 1976-11-26 1980-03-25 Hitachi, Ltd. Rolling mill
US4270377A (en) * 1978-05-19 1981-06-02 T. Sendzimir, Inc. Eighteen high rolling mill
US4487050A (en) * 1981-05-21 1984-12-11 Mitsubishi Jokogyo Kabushiki Kaisha Rolling mill
US5142896A (en) * 1989-11-25 1992-09-01 Sundwiger Eisenhutte Maschinenfabrik Cluster mill with hydraulic screw-down
US5133205A (en) * 1990-11-13 1992-07-28 Mannesmann Aktiengesellschaft System and process for forming thin flat hot rolled steel strip
US8127584B2 (en) 2007-12-20 2012-03-06 I2S, Llc Prestressed rolling mill housing assembly with improved operational features
US7765844B2 (en) * 2007-12-20 2010-08-03 Intergrated Industrial Systems, Inc. Prestressed rolling mill housing assembly with improved operational features
US20100251793A1 (en) * 2007-12-20 2010-10-07 Remn-Min Guo Prestressed Rolling Mill Housing Assembly With Improved Operational Features
US20090158802A1 (en) * 2007-12-20 2009-06-25 Remn-Min Guo Prestressed Rolling Mill Housing Assembley With Improved Operational Features
CN110202104A (zh) * 2019-05-27 2019-09-06 北京首钢国际工程技术有限公司 一种2+8辊组合式厚板坯大压下铸轧机气雾冷却装置
CN110202104B (zh) * 2019-05-27 2024-02-09 北京首钢国际工程技术有限公司 一种2+8辊组合式厚板坯大压下铸轧机气雾冷却装置
CN114728316A (zh) * 2020-01-22 2022-07-08 日本森吉米尔公司 多辊轧机
US20220379358A1 (en) * 2020-01-22 2022-12-01 Sendzimir Japan, Ltd. Multistage rolling mill
US12030098B2 (en) * 2020-01-22 2024-07-09 Sendzimir Japan, Ltd. Multistage rolling mill
CN117066329A (zh) * 2023-10-17 2023-11-17 山东宏泰电器有限公司 冰柜门板加工用辊轧折边机
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

Also Published As

Publication number Publication date
BE627714A (fr) 1963-05-16
FR1361899A (fr) 1964-05-29
DE1187580B (de) 1965-02-25
CH425698A (fr) 1966-12-15
GB988196A (en) 1965-04-07

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