Abstract: In order to provide an adjustment of the roll gap under load with high positioning accuracy and regulation accuracy, a cross-rolling unit for adjusting rolls operating under load with, disposed on a force-absorbing roll stand, a mechanical setting unit for a first cross-roll setting and a hydraulic setting unit for a second cross-roll setting, wherein the mechanical setting unit includes two mutually displaceable mechanical subassemblies having a common axis of symmetry and the hydraulic setting unit includes at least two mutually displaceable hydraulic subassemblies having respectively one central axis, has the mechanical setting unit and the hydraulic setting unit disposed in the force-absorbing roll stand as a common subassembly. The axis of symmetry of at least one of the mutually displaceable mechanical subassemblies and the central axes of each of the mutually displaceable hydraulic subassemblies are the same.

Abstract: A method of controlling a roll gap between first and second work rolls (102, 104) that includes defining a plurality of work surface locations spaced apart along the first work roll (102) in the longitudinal direction; obtaining a radius of the work surface (102a) of the first work roll (102) at each of the work surface locations; based on the radii of the work surface locations, obtaining a longitudinal profile of the work surface (102a); based on the longitudinal profile, tilting the first work roll (102) relative to the second work roll (104) in the common plane in order to reduce a difference in the average size of the gap either side of a centerline (CL), which bisects the longitudinal axes of the first and second work rolls (102, 104).

Abstract: In order to provide an adjustment of the roll gap under load with high positioning accuracy and regulation accuracy, a cross-rolling unit for adjusting rolls operating under load with, disposed on a force-absorbing roll stand, a mechanical setting unit for a first cross-roll setting and a hydraulic setting unit for a second cross-roll setting, wherein the mechanical setting unit includes two mutually displaceable mechanical subassemblies having a common axis of symmetry and the hydraulic setting unit includes at least two mutually displaceable hydraulic subassemblies having respectively one central axis, has the mechanical setting unit and the hydraulic setting unit disposed in the force-absorbing roll stand as a common subassembly. The axis of symmetry of at least one of the mutually displaceable mechanical subassemblies and the central axes of each of the mutually displaceable hydraulic subassemblies are the same.

Abstract: Provided is a plate material feeding device that can achieve reduced power consumption, improve durability, and supply plate material with high precision. A plate material feeding device is provided with a housing, a lower roll, an upper roll, a lower roll support member for supporting the lower roll, an upper roll support member for supporting the upper roll, and a slider movable in the horizontal direction along the upper roll support member, and can feed plate material clamped by the lower roll and the upper roll. A hole is provided in the slider, and a rod is provided in the upper roll support member. By inserting at least part of the rod in the hole in a slidable manner, the upper roll support member can move in the vertical direction when the slider moves in the horizontal direction.

Abstract: A system and method for removing flatness faults from a metal flat product, in particular a metal sheet or a strip, having multiple straightening rollers arranged on opposite sides of the flat product. In order to simplify and to enable more cost-efficient removal of flatness faults from a metal flat product, at least two cooperating straightening rollers arranged on opposite sides of the flat product each have at least three individually-adjustable partial rollers arranged axially adjacent to one another.

Abstract: A retention system for a bearing member includes a sleeve member and a retention member. The retention system includes an inner shoulder adapted to limit movement of the bearing member in at least one of a first axial direction and a second axial direction relative to the bore. The retention system includes an outer shoulder adapted to limit movement of at least one of the sleeve member and the retention member in at least one of the first axial direction and the second axial direction relative to the bore. The retention system includes a plurality of fasteners adapted to limit movement of each of the sleeve member and the retention member in at least one of the first axial direction and the second axial direction relative to the bore. Each of the sleeve member and the retention member is adapted to limit contact of the bearing member with the bore.

Abstract: A roller assembly is provided for spreading and chilling a web in a printing press. The roller assembly includes a roller for chilling and spreading a web and a trolley roller contacting the roller, the trolley roller configured and arranged to impart a deflection in the roller. Also provided is a roller assembly for counteracting web loading on a roller in a printing press. This roller assembly includes a roller for transporting a web, the roller having an axis; a web wrapped partially around the roller and applying a load on the roller transverse to the axis; and a trolley roller contacting the roller, the trolley roller configured and arranged to impart a sufficient force on the roller to keep the axis of the roller linear under said load.

Abstract: A power transmission member that transmits rotation of an output shaft to a movable mechanism achieves a simpler structure and increased productivity compared to when a conventional flexible cable is employed. Out of plural output portions 30 of a clutch unit 2, power transmission members that transmit rotation of an output shaft 31 to a movable mechanism are configured by a conventional torque cable in a second output portion 30B and a third output portion 30C. However in a first output portion 30A, the power transmission member is configured by a gearbox 3 including a worm 71 that is coaxially and integrally formed with an output shaft 31A.

Abstract: A method of rolling a strip is provided. The method includes determining a value representative of the lateral position of the strip along a line transverse to a run direction downstream of each stand and calculating algebraic differences between the lateral positions and a reference position. A value of additional tilt is calculated from the algebraic differences to bring the algebraic differences below a predetermined threshold. Calculating the additional tilt values includes multiplying the algebraic differences by a gain matrix K that is determined by modeling relationships linking the algebraic differences and the tilts of the stand rolls. The additional tilt value is transmitted to each of the stands. The steps are repeated at predetermined time intervals until the strip is no longer gripped in the nip of the last stand of the rolling mill. A device for adjusting the lateral position of a strip is also provided.

Abstract: Rolling unit including at least two adjacent rolling stands, each having a pair of rolling rolls mounted on respective motorized shafts. The rolls of one rolling stand are disposed orthogonal and close to those of the adjacent rolling stand. The shafts are eccentrically supported in respective support elements, which are selectively rotatable around their axis and are each provided with rotation means to cooperate mechanically with an adjustment member suitable to make the support elements selectively rotate to determine an adjustment of the gap between the rolls. The rotation means of one pair of the support elements are directly connected kinematically to each other. The adjustment member is disposed, with respect to the rolling stands, so that the center of its gear lies very close to the line joining the centers of the support elements, so that a substantial part is contained in the bulk defined by the rolling stand.

Abstract: A closing element for a machine frame of a rolling press, that sits on the end of a frame element as a hasp. The closing element includes and element enabling a pendular motion on the frame element. In this way, a floating mounting of the closing element is achieved. This enables a very fast dismounting that facilitates the replacement of the rolls, and leads to an optimum arrangement of the closing elements on corresponding end pieces of the machine frame.

Abstract: The invention relates to a device for introducing a thread into a workpiece having a cylindrical outer surface by means of thread rolling, comprising a profiling tool (7) having a profile without pitch, wherein the axis of the profiling tool is at an angle or parallel to the axis of the workpiece, wherein the profiling tool (7) is formed by a circular disk (9) rotatably mounted about the axis (8) of the disk, on the outer edge of which disk two annular, coaxial profiles (10) without pitch protrude, wherein said profiles form an annular space therebetween that corresponds in shape and dimensions to the thread profile of the thread to be created.

Abstract: The present invention provides a Cluster mill which utilizes a Cluster mill gauge control system, has a high mill stiffness, a large work roll gap for threading, a rapid work roll gap opening, accurate roll force computation, side to side tilting, and utilizes work rolls over a much wider diameter range.

Abstract: Disclosed is a milling device for inline-rolling a steel band which is produced especially by means of a twin-roll continuous casting process. Said milling device comprises at least two rolling units (20, 30) with working rolls (21, 31) that mill the steel band (11) and support rolls (22, 32) which support said working rolls. The working rolls and support rolls are rotatably mounted in bearing housings (23, 24, 33, 34). At least two rolling units (20, 30) are disposed successively in a monolithic or multipiece frame structure (15) such that the rolling temperatures between the rolling units differ only slightly while a simple and inexpensive design is created.

Abstract: The present invention provides a Cluster mill which utilizes a Cluster mill gauge control system, has a high mill stiffness, a large work roll gap for threading, a rapid work roll gap opening, accurate roll force computation, side to side tilting, and utilizes work rolls over a much wider diameter range.

Abstract: The invention relates to an adjusting roll for the rapid adjustment of rolls in rolling frames, among others vertical upset forging frames, comprising at least one respective piston, which acts on both sides of a working roll to adjust the latter, by means of assembled parts of at least one working roll or an interposed support roll. The inventive adjusting roll has been improved by the provision of a piston (KO), which is equipped with two piston rods (ST1, ST2) that point in opposite directions and the piston or pistons (KO) are inserted into a respective cavity in the roll base (ZB) or roll cover (ZD), said base and cover comprising coaxial bores for conducting the piston rods (ST1, ST2).

Abstract: The invention relates to a roll bending device for the control of profile and flatness in the rolling of metal plates or strips. In particular the invention relates to the well known principle of roll bending by using hydraulic cylinders to modify the load distribution between rolls of a rolling mill stand and a rolled stock e.g. a metal plate or a strip in order to control the profile and flatness of the metal plate or strip. A special design to allow safe roll bending even at large roll gauges is presented. The new design allows safe operation even at large roll gauges and high side loads.

Abstract: The invention provides a rolling method for a flat-rolled metal material and a rolling apparatus for the method each capable of stably producing a flat-rolled metal material free from camber or having an extremely light camber. The method is a rolling method of a flat-rolled metal material executed by using a rolling mill including at least work rolls and backup rolls. The apparatus is a rolling mill for this method. A rolling direction force acting on roll chocks on the operator side and the driving, side of the work roll is measured, the difference of the rolling direction force between the operator side and the driving side is calculated and a left-right swivelling component of roll gap of the rolling mill is controlled on the basis of this difference.

Abstract: The invention relates to a roll stand for hot-rolling or cold-rolling metallic strips. The roll stand comprises back-up rolls and work rolls (2, 3; 4, 5) which are respectively positioned in chocks (6; 7) in a rotating manner. Each chock (6; 7) can be displaced on two sides in guiding devices (8) of the column frame (9) for adjusting the roll gap (10) and can be additionally displaced on at least one side for adjusting the play, by means of horizontal piston cylinder units (11) arranged in the column frame (9). The aim of the invention is to completely eliminate the play in the vertical guiding device (8) of the work roll chocks (6; 7) during the rolling.

Abstract: An auxiliary adjusting device for a rolling mill stand includes a adjusting shaft, a cylindrical member forming an adjusting spindle and having a first outer thread cooperating with the inner thread of a support sleeve fixedly connected to the cross-beam, and a central recess provided with longitudinal teeth, a carrier secured to a bottom of the cross-beam, projecting into the central recess of the cylindrical member, and carrying, at its end side, a tooth gear that functions as a planet gear that cooperates, on one hand, with a tooth gear secured at an end of the adjusting shaft which extends through the carrier, and serving as a sun gear, and, on another hand, with the longitudinal teeth of the central recess of the cylindrical member, and an adjusting pressure sleeve connected with the support sleeve for longitudinal displacement relative thereto but without a possibility of rotation relative thereto.

Abstract: A rolling mill roll stand comprises parallel roll shafts rotatably supported by axially spaced first and second bearings contained in parallel eccentric sleeves. The eccentric sleeves are rotatably supported in a housing and the roll shafts have cantilevered ends that project externally from one side of the housing and that are adapted to carry work rolls. Third oil film bearings are contained by the eccentric sleeves and are arranged to rotatably support the roll shafts at intermediate locations between and spaced axially from both the first and second bearings.

Abstract: A pinch roll unit for either propelling or retarding a product moving along the pass line of a rolling mill comprises a pair of levers mounted for rotation about parallel first axes. Roll shafts are carried by the levers with each roll shaft being journalled for rotation about a second axis parallel to the first axis of its respective lever. Pinch rolls are carried by the roll shafts and are positioned to define a gap therebetween for receiving the product. An electrically powered first motor operates via a linkage to rotate the levers about the first axes and to move the pinch rolls between open positions spaced from the product, and closed positions contacting and gripping the product therebetween. An electrically powered second motor rotatably drives the pinch rolls.

Abstract: An auxiliary adjusting device for a rolling mill stand includes a adjusting shaft, a cylindrical member forming an adjusting spindle and having a first outer thread cooperating with the inner thread of a support sleeve fixedly connected to the cross-beam, and a central recess provided with longitudinal teeth, a carrier secured to a bottom of the cross-beam, projecting into the central recess of the cylindrical member, and carrying, at its end side, a tooth gear that functions as a planet gear that cooperates, on one hand, with a tooth gear secured at an end of the adjusting shaft which extends through the carrier, and serving as a sun gear, and, on another hand, with the longitudinal teeth of the central recess of the cylindrical member, and an adjusting pressure sleeve connected with the support sleeve for longitudinal displacement relative thereto but without a possibility of rotation relative thereto.

Abstract: A drive assembly for a dual coacting roller machine having a driven sprocket mounted onto a first roller shaft, a drive sprocket mounted onto a second roller shaft, and a pair of idler sprockets connected by a belt to the driven sprocket and drive sprocket, wherein one of the idler sprockets is mounted onto a mounting bracket connected to the driven sprocket, such that repositioning of the driven sprocket relative to the drive sprocket produces a corresponding repositioning of the mounting bracket and idler sprocket, such that the tension on the belt remains essentially the same.

Abstract: A rolling stand has a frame and a pair of support shafts centered on respective parallel shaft axes and each having an outer end projecting past the frame, inner and outer axially spaced bearing portions in the frame, and a gear between the respective inner and outer bearing portions. Each outer bearing portion lies between the respective inner bearing portion and the respective outer end. Respective rolls are carried on the outer ends outside the frame and respective eccentric sleeves rotatable in the frame about the axes engage the shafts at the bearing portions so that a spacing of the axes can be varied by rotating the sleeves in the frame. Respective pressure sleeves surround the shafts between the respective inner and outer bearing portions and are connected to a controller that pressurizes the sleeves and thereby bends the shafts in the frame between the inner and outer bearing portions.

Abstract: Work rolls opposed to each other have shafts rotatably supported by upper and lower work roll chocks of a housing, a screw down device for applying a predetermined pressure to the upper work roll is provided in an upper portion of the housing, screw mechanisms capable of thrusting the work roll chocks in a horizontal direction are provided on an entry side or a delivery side of the housing, hydraulic cylinder mechanisms capable of thrusting the work roll chocks in the horizontal direction are provided on the other side, and contraction portions are provided in hydraulic supply and discharge pipes of the hydraulic cylinder mechanisms.

Abstract: In a rolling method applied to a multi-roll strip rolling mill composed of not less than four rolls, one of the zero point of the roll positioning devices and the deformation characteristic of the strip rolling mill or alternatively both the zero point of the roll positioning devices and the deformation characteristic of the strip rolling mill are found from a measured value of the thrust counterforces in the axial direction of the roll acting on at least all the rolls except for the backup rolls in the kiss-roll tightening state and also from a measured value of the roll forces of the backup roll acting on the backup roll chocks of the top and the bottom backup roll in the vertival direction. According to the thus obtained zero point of the roll positioning devices or the deformation characteristic of the strip rolling mill, the setting and control of the roll forces is executed when rolling is carried out.

Abstract: The invention refers to a straightener for rolled ferrous products, of the type in which a framework (11) comprises a pair of opposed shoulders (12, 13) which support two sets of rolls, a top set (14) and a bottom set (15), which define between them a straightening path for straightening said rolled products. According to the invention, said opposed shoulders (12, 13) may be translated horizontally between a closed, operative, position of containment and support of said rolls (14, 15), and an open, non-operative, position, in which said sets of rolls (14, 15) may be removed for replacement with other sets of different rolls. Moreover provided are supporting and transporting means, which are independent of the aforesaid framework (11), for supporting said sets of rolls (14, 15) in said open, non-operative, position of the shoulders (12, 13).

Abstract: A roller die apparatus for supporting pairs of roller dies in predetermined clearances for processing a web workpiece, and for varying the clearances between the dies to accommodate variations in the thickness of a web workpiece and having first and second roller dies rotatably mounted on respective roller die bearings, one of the first and second roller dies being moveable both upwardly and downwardly transversely to its axis of rotation, and being moveable axially along its axis of rotation, thereby achieving adjusting of the die clearance between the first and second roller dies in two planes. The two adjustments take place simultaneously so as to cause an adjustment movement in a diagonal direction, as between one die and the other in each pair.

Abstract: A roll stand for a rolling mill, comprising: a support structure adapted to be fixed at a selected location along a mill center line. First and second work rolls are configured and arranged to roll products directed therebetween. The first work roll has roll necks journalled for rotation in bearings contained in first chocks, and the second work roll likewise has roll necks journalled for rotation in bearings contained in second chocks, with the first and second chocks of the work rolls being arranged in pairs located on opposite sides of the mill center line. The first and second chocks of each pair are connected to the support structure for pivotal movement respectively about parallel first and second connecting axes which extend in parallel relationship with respect to the axes of the rolls and orthogonally with respect to the mill center line.

Abstract: A device with a stepped adjustment for adapting the vertical position of the rolls of a roll stand to the rolling line, wherein the rolls are supported on both sides in chocks and arranged so as to be raisable and lowerable in roll housings, particularly in a four-high skin pass stand or sizing stand operated with low rolling force. The chocks of one of the rolls have on their sides facing the roll housings a toothed segment and complementary toothed rails are arranged in the roll housings opposite the toothed segments and are movable toward and away from the toothed segments.

Abstract: A description is given of a device for continuously rolling a sheet-metal strip into a profile with profile limbs of straight cross section, in particular for producing longitudinally welded rectangular tubes specifically with the aid of former rolls (13) which are arranged on both sides of a central plane (2) running in the longitudinal direction of the strip and are mounted in a separate frame (11, 12) in each case together with counter-rolls (14) which are aligned perpendicular to the central plane (2) and can be adjusted perpendicular to the central plane (2). In order to create advantageous design conditions, it is proposed that the frames (11, 12) are arranged on each side of the central plane (2) with the associated counter-rolls (14) respectively opposite the neighbouring frames (12, 11) on the opposite side of the central plane (2) in a fashion offset in the longitudinal direction of the strip.

Abstract: A housingless rolling mill having an upper and lower work roll, upper bearing blocks and lower bearing blocks for supporting the upper and lower work rolls, and screw-down cylinders for pulling the upper and lower bearing blocks vertically toward each other. The screw-down cylinder is tiltable with the use of upper and lower spherical. Legs of the lower bearing block are turnable in a roll cross direction. Lower cross cylinders are provided at the lower bearing block, and upper cross cylinders are provided at the upper bearing block to enable the work rolls to cross at an angle .theta.. Thus, a strip material is rolled to a satisfactory shape and thickness with the upper work roll and the lower work roll crossing each other.

Abstract: A device for withdrawing a strand, especially a metal strand, from a continuous casting mold, includes drivable rollers that are located on opposite sides of the strand and are rotatably mounted on both sides in chocks. For adjustment to the strand cross-section, the rollers, with their chocks, can be moved toward and away from each other in a housing frame, and can be pressed against the strand surface in a force-operated or pressure-medium-operated fashion. Each chock of the first roller is connected via a tension member to a positioning device run in the guide of a clamping unit. Drives of the positioning unit are connected to chocks of the second roller to move the second roller toward or away from the first roller, the second roller being arranged between the positioning device and the first roller.

Abstract: Disclosed is a rolling unit (10) consisting of two roll stands (12, 14). The roll stands (12, 14) each have pairs of openings (24a) defined through a housing (24) to locate on each side of the pass line (PL), and a pair of eccentric members (26) each having an eccentric opening (26a) are rotatably inserted in these openings (24a), respectively, with a predetermined space being secured axially therebetween. A pair of roll shafts (28), on which rolls (13, 15) are fitted to be rotatable integrally therewith, respectively, are rotatably inserted through these eccentric openings (26a). A pair of adjusting shafts (32) are rotatably disposed in the housing (24). A pair of worms (34), which engage with toothed portions (26b) are fitted on each adjusting shaft (32) to be rotatable integrally therewith. A gear, which is engaged commonly with the adjusting shaft (32). The positions of the rolls (13) can be varied by rotating the adjusting gear via the eccentric members (26).

Abstract: A rolling mill having a plurality of roll units, a rolling-reduction adjusting device of an eccentric-cartridge type, and a roll-alignment adjusting device, all mounted on its housing. The housing is split into freely separable and joinable first and second housing segments. The housing segments have semicircular bearing-holder segments formed in their joint surfaces. The shafts of the roll units are held between the first and second housing segments by being journaled in eccentric cartridges which are fitted in the bearing holders consisting of the semicircular bearing-holder segments. The roll-alignment adjusting device includes adjusting mechanisms and chucks to connect the shaft ends of the roll units to the adjusting rods of the adjusting mechanisms.

Abstract: A rolling apparatus has a frame and a first eccentric journal sleeve mounted on the frame, defining a first axis, and having axially inner and outer ends. A first shaft journaled in the sleeve has respective inner and outer ends at the first-sleeve inner and outer ends. The first-shaft outer end projects axially from the frame and carries a workpiece-deforming first roller. A rocker is displaceable transversely of the axis on the frame and carries a second eccentric journal sleeve defining a second axis generally parallel to the first axis and having axially inner and outer ends. A second shaft journaled in the second sleeve has respective inner and outer ends at the second-sleeve inner and outer ends. The second-shaft outer end also projects axially from the frame and carries a workpiece deforming second roller forming with the first roller a workpiece-receiving nip.

Abstract: Successive roll stands in a rolling mill are driven at selectively different drive speed ratios by a transmission system having a pair of drive shafts and a least one idler shaft journalled for rotation about parallel axes. First and second gear trains each include intermeshed drive gears freely rotatable on the drive shafts, and a pair of idler gears on the idler shaft; each being in meshed engagement with at least one of the drive gears of each drive train. Clutches operated to selectively couple the drive gears of the first and second drive trains with their respective drive shafts.

Abstract: The invention relates to an electrically heated metal strip rolling mill comprising: front and back reels for supporting a metal strip; electric power suppliers; a roll stand having a base, a roll support frame having upper and lower casings being fastened with studs, at least two pairs of supporting rolls rotatably fixed in said support frame, at least one pair of working rolls rotatably fixed in said roll support frame and disposed between the support rolls, and a roll drive mechanism for driving the support rolls; a means for applying electricity directly to the surface of one roll of the pair of working rolls from the electric power suppliers and conducting the electricity to the outside directly from another roll of the pair of working rolls; and a strip cooler disposed after said roll stand for cooling said metal strip.

Abstract: A process for the cold rolling of a metal strip between rollers of rolling stands arranged sequentially is provided, along with a plant for its implementation, wherein the process involves:analyzing, as a function of frequency, a signal from an inter-stand tension measurement sensor corresponding to a level of tension of the metal strip to determine periodic variations in the signal having frequencies corresponding to a speed of rotation of the pair of rollers in a downstream rolling stand and proportional to out-of-roundness defects present in the rollers of the downstream rolling stand; andcompensating for the out-of-roundness defects in the rollers in the downstream rolling stand by adjusting the clamping setting of the rollers in the downstream rolling stand in accordance with a compensation signal, produced by the means for compensating, that is proportional to the periodic variations.

Abstract: A method for adjusting the roll gap in strip rolling mills including a roll stand equipped with hydraulic adjusting devices on the drive side as well as on the operator side, wherein the positions of the rolls in a roll stand are adjustable by means of the hydraulic adjusting devices. Prior to the beginning of rolling, the stand is calibrated in a reproducible state. For any changes of the stand geometry and/or the force proportions in the stand, position changes of the adjusting devices corresponding to and resulting from these changes are determined. Changes in the stand geometry and/or the force proportions adjusted or occurring during the rolling operation are regulated by utilizing the difference between the determined corresponding adjusting positions on the drive side and the operator side and by controlling the adjustment toward zero.

Abstract: A roll stand for a rolling mill has a housing with a through opening. The housing rotatably supports a pair of roll shafts, at least one of which is journalled for rotation in the eccentric bores of interconnected sleeves. The roll shafts carry work rolls positioned in the through opening to define a roll pass therebetween. An adjustment mechanism is axially engageable with one of the interconnected sleeves to rotate both sleeves and thereby adjust the parting between the work rolls. The adjustment mechanism is contained in a module which is separably connected to the housing.

Abstract: A rolling mill of the present invention includes a mill stand formed by two spaced apart housings. The housings are configured to rotatably hold one of at least two sets of rolls. A hold-down assembly is coupled to the housings. The hold-down assembly includes at least a first pair of hold-down screws and a second pair of hold-down screws. The distance between the screws of the first pair of hold-down screws is less than the distance between the screws of the second pair of hold-down screws. Each pair of hold-down screws is selectively adapted to substantially align with the bearing chocks of an adjacent roll of one of the sets of rolls in the mill stand.

Abstract: A metal bending machine comprising a lower pinchroller composed of modular interchangeable segments, and upper pinchroller composed of modular interchangeable segments, and a radius roller composed of modular interchangeable segments, the lower pinchroller being fixedly and rotatably mounted upon a pinchroller table, the upper pinchroller being rotatably and vertically adjustably mounted in alignment with and above the lower pinchroller, and the radius roller being rotatably and vertically adjustably mounted upon the pinchroller table behind the upper and lower pinch rollers, the upper and lower pinchrollers being counter-rotated with respect to each other by a rotating means, the segments of the upper and lower pinchrollers and the radius roller having annular channels therearound closely fitted to the cross-sectional profile of a workpiece to be bent by the metal bending machine, the metal workpiece being driven into and through the pinch point formed by the upper and lower pinchrollers, and into contact wi

Abstract: A horizontal/vertical roll stand with a pair of work rolls which can be exchangeably mounted with chocks and adjusting spindles in the stand includes a housing which is formed by four posts which extend from the corners of a common base plate, wherein the posts have an essentially rectangular cross-section. A cube-shaped receiving space which is open toward the top and at the sides for a cassette-type roll mounting unit is defined by the base plate and the four posts. During the exchange of the rolls, the roll mounting unit can be pulled out as a structural unit from the receiving space of the stand. Pairs of the posts form guides therebetween. A total of four support plates with a center support member each for four adjusting spindles are releasably fastened to the guides. The adjusting spindles have adjusting nuts on right/left thread portions, wherein pairs of adjusting nuts engage with cylindrically shaped projections into chocks of the rolls and adjust the rolls.

Abstract: A two-part housing assembly for a cluster mill. The housing assembly has substantially the same size, form and structure as a monobloc housing, but is divided along a horizontal plane located at or close to its horizontal center line into upper and lower mill housings each provided with a roll cavity and a roll cluster therein. The gap between the work rolls of the roll clusters is adjusted by symmetrical equal and opposite movement of the upper and lower mill housings achieved by four identical screws, one located in each corner of the mill housing assembly. Each screw has two threaded portions of opposite hand, one threaded portion engaging a threaded nut of opposite hand non-rotatively mounted in a recess in the upper mill housing and the other threaded screw portion engaging a threaded nut of appropriate hand non-rotatively mounted in a recess in the lower mill housing. Each screw supports the upper and lower mill housings.

Abstract: A roll stand for a pair of work rolls includes a housing with two side walls arranged on a common base plate. A cube-shaped receiving space which is open toward the top and toward two sides and is provided with guide surfaces for an insertable roll cassette is formed between the side walls. The insertable roll cassette of the roll stand includes two side plates which extend parallel to each other and are spaced at a distance from each other. The outer sides of the side plates are guided by the guide surfaces of the side walls. The side plates form guide means for two pairs of chocks which receive the work rolls with the bearings of the rolls. A pair each of interacting chocks are connected by means of adjusting spindles which absorb rolling forces, wherein the distance between chocks is adjustable so as to produce pre-adjustable passes. The adjusting spindles include adjusting collars and the side plates have adjusting pieces which are compatible with the adjusting collars.

Abstract: The invention focuses on improvements to cantilevered roughing, intermediate and finishing rolling mill stands, primarily for long products. A basic improvement to 2-high and cluster mill stands includes mounting of the rolling bearings upon a stationary cantilevered arbor directly under the roll ring, eliminating heavily-loaded main reaction bearings within the stand housing in limited radial space. Individual drive motor assemblies for each shaft, rigidly coupled and directly supported by the drive shafts, are also advocated, in preference to floor-mounted drives via pinion stands to spindles and couplings. This eliminates drive reaction forces acting against the stand assembly, allowing direct measurement and control of interstand tension/compression, for which appropriate hardware is outlined. A cluster mill assembly features work roll cartridge assemblies adapted for off-line set-up and ultra-fast roll and guide changes, which is particularly adapted to intermediate and finishing pass applications.

Abstract: An apparatus is provided for continuously shaping a metal tube by means of shaping rollers, which are arranged around the tube and consist of pairs of rollers disposed on opposite sides of the axis of the tube. It is desired to permit an adaptation of the apparatus to tubes which differ in size and in final shape. This is accomplished in that each shaping roller is radially adjustable relative to the tube and is mounted to be pivotally movable about a pivotal axis which is parallel to the axis of the tube. Said pivotal axis extends through the center of curvature of an arc of a circle which is at least approximated by that portion of the rolling contour which is defined by said shaping roller or said pivotal axis is spaced from said center of curvature in a direction which is parallel to the axis of said shaping roller.

Abstract: A demountable rolling stand having a support base, a pair of rolling cylinders with necks formed thereon, two side structures for supporting the rolling cylinders laterally therebetween, at least two pairs of pretensioning tie-rods engaging the side structures so as to clamp the side structures to the cylinders. The side structures have cylindrical support roll bearings affixed thereto in support of the rolling cylinders. The necks of the rolling cylinders have an interior ring of the cylindrical support roll bearings affixed directly thereto such that the interior ring is removable along with the rolling cylinders. The support base is connected to the side structures so as to support the cylinders above a surface. The pretensioning tie-rods serve to pretension a rolling force between the cylinders.