Abstract: A single facer equipped with a plurality of corrugated roll units each composed of a pair of corrugated rolls is provided with: a lifting/lowering device that causes each of the corrugated roll units to be lifted and lowered between a use position at which a core sheet is to be corrugated, a first position adjacent to and directly under the use position, and a second position adjacent to and directly under the first position; a horizontal movement device that causes each of the corrugated roll units to be moved horizontally between the first position, a third position adjacent to the first position on one side in a sheet transfer direction, and a fourth position adjacent to the first position on the other side in the sheet transfer direction; and a control device that controls the lifting/lowering device and the horizontal movement device to move the corrugated roll units.

Abstract: Changing of a horizontal roll in a horizontal roll stand involving readjustment of an amount of pressing is to be done readily and promptly. In order to achieve this, a horizontal roll stand 10 with a pair of built-in upper and lower horizontal rolls 11 is configured to retreat toward one side across a forming line. A fixed stand 40 stands upright on a counter-retreating side of the forming line. An overhang part 42 of the fixed stand 40 jutting out over the forming line is provided with a pressure device 43 that applies a pressing force to the horizontal rolls 11. The horizontal roll stand 10 includes a horizontal roll housing 12 with an opened top, receives the pressing force from the pressure device 43 via the opened top, and retreats to the outside of the forming line while the pressure device 43 is left on the forming line.

Abstract: A roll changing device is applicable to a multi-roll mill. Under a roll changing state, assembly parts of the work rolls and the bearing chocks have a lateral movement space with the internal width not less than the assembly width of the work rolls and the bearing chocks in a lateral direction of the assembly parts moving along a rolling strip in a mill house, and the movement space allows another work rolls to coexist with used work rolls in the mill house before the used work rolls are pulled out. The roll changing device is provided with at least two rows of clamping heads, one row of clamping heads corresponding to an inlet side are inlet clamping heads, another row of clamping heads close to an outlet side are outlet clamping heads, each row of clamping heads comprises a pair of upper and lower clamping heads arranged in parallel.

Abstract: Disclosed is a method for changing the rolls on a rolling mill for rolling a metal strip, carried out using a Quarto rolling mill, including lower and upper working and support rolls. The installation includes a system for extracting the working rolls and the support rolls, including: an actuator pushing the rolls out of the roll stand extraction; a coupling head, secured to the actuator, situated in a position of opening of the roll stand, including: a first coupler driving the chock or the end of the lower working roll, on the rolling-mill drive side; a second coupler driving the chock of the lower support roll, on the rolling-mill drive side. The first and second coupler allow successive extractions of the working rolls and then of the support rolls from the roll stand using the actuator of the extraction system. Also disclosed is a related rolling mill installation.

Abstract: Changing rolls in rolling equipment is performed more efficiently. For this purpose, a roll changing device (12) for changing a pair of top and bottom work rolls (21) provided in a rolling mill (11) for rolling a strip to be passed therethrough includes: a work roll holding unit (51) holding the pair of top and bottom work rolls (21) in an attachable/detachable manner and capable of moving the work rolls (21) in a threading direction; a roll holding device (31) including the work roll holding unit (51) and capable of moving in a roll axis direction relative to the rolling mill (11) in a state of holding the work rolls (21) by using the work roll holding unit (51); and a work roll transfer device (32) capable of moving in a direction intersecting with a moving path of the roll holding device (31) and capable of mounting the work rolls (21).

Abstract: Disclosed is a rolling mill for a metal strip, including: a holding cage; an assembly of superimposed rolls with substantially parallel axes, including lower and upper working rolls, defining the gap for passage therethrough, and two respectively lower and upper supporting rolls respectively applied to the working rolls on the opposite side to that of the gap, each roll having two rotatably mounted ends, each on a bearing carried by a chock; and a system for clamping the chocks of the working rolls along the axis of the roll, while allowing the chocks to slide along a guide, following the clamping plane including a mechanical unit using the closing movements of the holding cage in order to switch from a retracted position, allowing the withdrawal, along the axis thereof, of the working rolls out of the holding cage, into a locking position, ensuring locking of the chocks.

Abstract: The present invention relates to a rack change system for changing of roller racks of a rolling block with a rail system along which change carriages can be moved, wherein the rail system includes a first track and a second track, which extend in different directions and are connected to one another via a switch, wherein the first track runs parallel to the rolling line of the rolling block, wherein a roller rack can be moved from the rolling block to the change carriage or a roller rack can be moved from the change carriage to the rolling block when the change carriage is standing on the first track and/or on the switch.

Abstract: A rotary cutting apparatus includes a frame movable in a first direction and a second direction that is opposite the first direction. The apparatus includes a cutting roll. The cutting roll is rotatably connected with the frame and configured to rotate about a first longitudinal axis. The apparatus includes an anvil roll. The anvil roll is rotatably connected with the frame and is configured to rotate about a second longitudinal axis. The first longitudinal axis is substantially parallel with the second longitudinal axis. The apparatus includes a first stationary member adapted to prevent movement of the frame in the first direction. The apparatus also includes a second stationary member connected with the frame. The second stationary member has a first configuration that prevents movement of the frame in the second direction. The second stationary member has a second configuration that allows movement of the frame in the second direction.

Abstract: To minimize the setup times in the case of a tool changeover on rolls, the movement sequences are separated into transverse movements and vertical movements using a tool changeover system and method for changeover of at least one tool disposed on a roll shaft in a working position. In one aspect, the tool changeover system includes a tool changeover rack, a vertical transport and a transverse transport. A drawing frame separate from the tool changeover rack can be transported transversely separately with reference to the tool changeover rack. The tool changeover rack has a device for connecting with the vertical transport and a tool accommodation for accommodating the tool. The drawing frame has a device for connecting with the transverse transport and a device for connecting with the tool.

Abstract: The invention relates to a device for moving a roll stand into or out of a roll stand receptacle of a rolling line, comprising a carrier element for entraining an entrainment element of a roll stand and a conveying element, wherein the carrier element is moved along a predetermined curved path.

Abstract: A rolling machine has pairs of rolls in a horizontal line of roll pair locations, with each pair including upper and lower rolls opposed across a vertical gap. A sliding frame is mounted on the rolling machine for movement alongside the rolling machine in a direction parallel to the line of roll pair locations. A lifting frame is mounted on the sliding frame for movement vertically relative to the sliding frame beside each of the roll pair locations. Other parts include a roll cassette and a load tray. The load tray is configured to carry the roll cassette, and is mounted on the lifting frame for movement relative to the lifting frame transversely into the vertical gap between the rolls at each roll pair location.

Abstract: In a method for producing seamless pipes, a hot hollow block created previously in a piercing mill is stretched by means of a continuous rolling mill on a mandrel bar to form a parent pipe and the parent pipe is fed directly to a stretch reducing mill or sizing mill as a finishing mill, while forgoing an extracting mill and a reheating furnace, and is rolled there to the required final pipe diameter. The hollow block is pre-dimensioned in its length in such a manner that only a single length is produced as the required parent pipe length during the stretching in the continuous rolling mill and the parent pipe is pulled off of the mandrel rod by the finishing rolling during the subsequent finishing rolling, wherein the rolling is performed using rolling mill components that are designed in the dimensions thereof for handling single lengths.

Abstract: A machine for leveling a strip of material includes a fixed supporting frame; an upper leveling device and a lower leveling device, each leveling device forming a cassette with a plurality of separated rollers, rotatably mounted on a frame of a device for rotating the rollers connected to at least some of the rollers by an extender, each extender having one end provided with a removable coupling member with one end for rotating the roller, and a device for locking each removable coupling member by clamping. The clamping locking device includes a device configure for translating the removable coupling members in the direction of travel of the material, and in the opposite direction.

Abstract: There is described multi-stand rolling mill with stands having four motorized rolls and provided with controls outside the stand and retractile spindles, which comprises a central body with said stands; a first platform (41) on a side charge position carrying the substitution stands; a second platform (42) on a side discharge position, opposite to said side charge position; a transversal translation device (43, 44) adapted to push the substitution stands against the corresponding stands to be substituted on the central body. The stands to be substituted translate on the second platform, and the substitution stands substitute the stands to be substituted in the central body.

Abstract: The invention relates to a device for handling and/or transporting back-up rolls and/or work rolls (4a, 4b) of a roll stand, preferably at least in pairs, especially in sets, between the roll stand arranged in a roll ball and a roll workshop, and in the roll workshop. Said device comprise a roll-changing pit that extends transversely to the roll direction of the roll stand, form the roll stand towards the roll workshop, and has displacement devices for at least one pair or set of dismantled back-up or work rolls (4a, 4b), and a roll-changing stand (8) that is arranged transversely to the roll-changing pit in the roll workshop and can be moved across said pit in or away from the roll direction of the roll stand. The aim of the invention is to enable the time required for a back-up roll change to be reduced and the back-up roll change to be simplified.

Abstract: The invention relates to a method for changing rolls, in particular, working rolls and/or intermediate rolls in a roll stand, such as a roughing down stand or finishing stand for rolling thick sheet iron. Said rolls comprise back up roller sets and working roller sets. One individual locomotive mechanism is used for changing the working rolls and/or for changing the back up rolls and/or for inserting or withdrawing a roll changing seat by supporting the rolls on each other and subsequently withdrawing in the axial direction of the rolls on the operational side of the roll stand, from a roll hall in a roll workshop and back and for installing novel roll sets. The invention also relates to a device for carrying out said method.

Abstract: The invention relates to a method for changing/transporting a fire roll set (7, 8) and a second roll set (22) on a transversal displacement platform (23) in the region of a roll stand (4) in a roll hall, in or counter to the direction of rolling. During the changing/transporting of the first and the second roll set (7, 8, 22) by the transversal displacement platform (23), a roll changing hole (10) is completely transversed/covered. The invention also relates to a device for carrying out said method.

Abstract: The invention relates to a method for changing rolls, in particular, working rolls and/or intermediate rolls in a roll stand, such as a roughing down stand or finishing stand for rolling thick sheet iron. Said rolls comprise back up roller sets and working roller sets. One individual locomotive mechanism is used for changing the working rolls and/or for changing the back up rolls and/or for inserting or withdrawing a roll changing seat by supporting the rolls on each other and subsequently withdrawing in the axial direction of the rolls on the operational side of the roll stand, from a roll hall in a roll workshop and back and for installing novel roll sets. The invention also relates to a device for carrying out said method.

Abstract: The invention relates to a method for changing rolls, in particular, working rolls (7, 8) and/or intermediate rolls in a roll stand, such as a roughing down stand or finishing stand for rolling thick sheet iron. Said rolls comprise back up roller sets (5, 6) and working roller sets (7, 8). One individual locomotive mechanism (9) is used for changing the working rolls (7, 8) and/or for changing the back up rolls (5, 6) and/or for inserting or withdrawing a roll changing seat (11) by supporting the rolls on each other and subsequently withdrawing in the axial direction of the rolls on the operational side of the roll stand, from a roll hall (1) in a roll workshop (2) and back and for installing novel roll sets. The invention also relates to a device for carrying out said method.

Abstract: A system for changing a roller, has a system for determining parameters which characterize the identity and/or the operating state of a roller of an industrial plant, at least one sensor arranged on the roller for furnishing parameters being designed such that the furnished identity parameter of the roller is detectable, and a reading device designed for reading out detected parameters from the sensor without contact. The sensor is also designed to detect an operation state parameter of the roller and can be operated at a roller temperature of at least 150 C. In a rollerchanging wagon on which a roller can be mounted in such a manner that the roller can be guided into or out of a roll stand, the sensor is arranged on the roller for the purpose of furnishing and/or detecting parameters. The process security for an industrial plant can be increased by such a system.

Abstract: The invention relates to a device for handling and/or transporting back-up rolls and/or work rolls (4a, 4b) of a roll stand, preferably at least in pairs, especially in sets, between the roll stand arranged in a roll ball and a roll workshop, and in the roll workshop. Said device comprise a roll-changing pit that extends transversely to the roll direction of the roll stand, form the roll stand towards the roll workshop, and has displacement devices for at least one pair or set of dismantled back-up or work rolls (4a, 4b), and a roll-changing stand (8) that is arranged transversely to the roll-changing pit in the roll workshop and can be moved across said pit in or away from the roll direction of the roll stand. The aim of the invention is to enable the time required for a back-up roll change to be reduced and the back-up roll change to be simplified.

Abstract: In a method to replace a pair of rolls of a rolling mill stand during a downtime period, worn rolls fitted with chocks are extracted from the mill stand and positioned on means of displacement that bear a pair of new rolls without chocks. The method sets the means of displacement in motion so that the worn rolls are aligned with a chock extraction device. The chock extraction device is used to remove the chocks from the worn rolls. The means of displacement are actuated so that new rolls are now aligned with the chock extraction device. The chock extraction device is used to reinstall, on the new rolls, the chocks. After the new rolls have been fitted with the chocks, the new rolls are inserted in the mill stand so that the downtime period is reduced and the number of chocks in service is likewise reduced.

Abstract: The invention relates to a car (100) for transporting at least one drive spindle for a roller of a roll stand (300) and to a method for operating the car. The car comprises a running unit (105) for displacing the car from the operating side of the roll stand, through the roll stand, to the drive side, or vice versa, and the car is built flat enough that it fits under the drive spindles. The car according to the invention is an alternative to the prior art. Said car is designed as a lift car having a first carrier device (110) and a first drive unit (120), wherein the first drive unit (120) serves for raising or lowering the first carrier device (110), optionally having the drive spindle (200), relative to a neutral position.

Abstract: There is described multi-stand rolling mill with stands having four motorized rolls and provided with controls outside the stand and retractile spindles, which comprises a central body with said stands; a first platform (41) on a side charge position carrying the substitution stands; a second platform (42) on a side discharge position, opposite to said side charge position; a transversal translation device (43, 44) adapted to push the substitution stands against the corresponding stands to be substituted on the central body. The stands to be substituted translate on the second platform, and the substitution stands substitute the stands to be substituted in the central body.

Abstract: In a rolling stand (1), especially a plate rolling stand, with a right housing column (2), a left housing column (3), an upper column crosshead (4) that connects them, at least one pair of work rolls and one pair of backup rolls and associated chocks, a balancing device with brackets (5, 6) and a piston rod (7) that extends upward through the column crosshead (4) beyond the upper surface (8) of the column crosshead (4), the piston rod (7) has a yoke (10) at its outer end (9), which yoke (10) is oriented in the rolling direction and engages the brackets (5, 6) of the balancing device, and a rotating sleeve (11), which encloses the piston rod (7), is arranged between the upper edge (12) of the balancing cylinder (22) and the lower edge (13) of the yoke (10), is supported on the column crosshead (4), and has at least one open slot (14) into which the yoke (10) can drop.

Abstract: A variable crimp on flange (COF) tool is provided for engaging and attaching a weather strip and like structures onto a flange. The COF tool includes a housing with two or more crimp rollers that project therefrom. For example, a fixed roller is mounted to the housing to rotate in a first direction, while a movable roller is mounted to the housing to rotate in a second, opposite direction. The movable roller is axially offset from and movable relative to the fixed roller. A driving mechanism, such as a pneumatic motor, is encased within the housing, and operates to rotate the crimp rollers. A biasing mechanism, such as a pneumatic piston assembly, is also encased within the housing, and operates to move the movable crimp roller relative to the fixed crimp roller. The COF tool is engineered such that the crimp speed, crimp rate, and crimp pressure are independently adjustable.

Abstract: The invention relates to a method for assembling and/or starting machine units in installations, such as machine beds (1) and/or roll stands (2), e.g. in an existing production line of a hot-rolling mill. In order to minimize especially the downtimes during assembly, the machine bed (1) is prefabricated and the required or cooperating machine units are prefabricated and preassembled or assembled on site next to the production line (3), whereupon said machine units are inserted into the production line (3) as a complete structural unit including the bed block (1) and allocated driving members, control elements, fastening elements or similar, pipes and cables required for operation, and additional pieces of equipment.

Abstract: A method of and an installation for exchange of roll sets (5, 6) contemplate provision of a number of separate transversely displaceable carriages (9, 10, 11), whereby individual worn-out working roll sets (6) are displaced along a single connection track (14) by a single locomotive (21) in a roll workshop (20), and a new working roll set (6a) is displaced back to an installation position, and wherein during formation of a gap (12) in front of a rolling mill stand (2, 3, 4), a withdrawn backup roll set (5) is transported by a crane in the roll workshop and back.

Abstract: An apparatus for rotationally locking a rolling-mill roll in the bearing mount LS in a rolling-mill frame has an axially shiftable housing fitted to the stub (WZ) of the roll, having a planar flange (FA) that in one position of the housing bears on an abutment face of an abutment element fixed in the bearing mount (LS).

Abstract: In a method to replace a pair of rolls of a rolling mill stand during a downtime period, worn rolls fitted with chocks are extracted from the mill stand and positioned on means of displacement that bear a pair of new rolls without chocks. The method sets the means of displacement in motion so that the worn rolls are aligned with a chock extraction device. The chock extraction device is used to remove the chocks from the worn rolls. The means of displacement are actuated so that new rolls are now aligned with the chock extraction device. The chock extraction device is used to reinstall, on the new rolls, the chocks. After the new rolls have been fitted with the chocks, the new rolls are inserted in the mill stand so that the downtime period is reduced and the number of chocks in service is likewise reduced.

Abstract: In an installation part (1) in a rolling stand for receiving a roll journal (24) having a journal bush (24) of a roll which is used in the processing of steel and non -ferrous metals, wherein the installation part (1) has a cambered side (3) which faces the roll and a run-out side (4) which lies opposite the cambered side (3), having lubricant receiving spaces (7, 15, 16) on the cambered side (3), at least one housing tongue (23) is provided on the cambered side (3) for the at least partial delimitation of the lubricant receiving spaces (7, 15, 16) with respect to one another and for the formation of a gap (25) with the journal bush (24), the width of which gap (25) is below a predefined gap width threshold value.

Abstract: The invention relates to a method for changing rolls, in particular, working rolls (7, 8) and/or intermediate rolls in a roll stand, such as a roughing down stand or finishing stand for rolling thick sheet iron. Said rolls comprise back up roller sets (5, 6) and working roller sets (7, 8). One individual locomotive mechanism (9) is used for changing the working rolls (7, 8) and/or for changing the back up rolls (5, 6) and/or for inserting or withdrawing a roll changing seat (11) by supporting the rolls on each other and subsequently withdrawing in the axial direction of the rolls on the operational side of the roll stand, from a roll hall (1) in a roll workshop (2) and back and for installing novel roll sets. The invention also relates to a device for carrying out said method.

Abstract: The invention relates to a method for changing/transporting a fire roll set (7, 8) and a second roll set (22) on a transversal displacement platform (23) in the region of a roll stand (4) in a roll hall, in or counter to the direction of rolling. During the changing/transporting of the first and the second roll set (7, 8, 22) by the transversal displacement platform (23), a roll changing hole (10) is completely transversed/covered. The invention also relates to a device for carrying out said method.

Abstract: The invention relates to a method for handling/transporting rolls and/or supports rolls in a roll workshop.

Abstract: A method of and an installation for exchange of roll sets (5, 6) contemplate provision of a number of separate transversely displaceable carriages (9, 10, 11), whereby individual worn-out working roll sets (6) are displaced along a single connection track (14) by a single locomotive (21) in a roll workshop (20), and a new working roll set (6a) is displaced back to an installation position, and wherein during formation of a gap (12) in front of a rolling mill stand (2, 3, 4), a withdrawn backup roll set (5) is transported by a crane in the roll workshop and back.

Abstract: A changeover system for a metal forming mill, in particular for a tube-forming mill, comprises at least one pair of work modules, the work modules of which are adapted to be pivoted into and out of a line of work stations of the mill. Each work module has its own drive or drives. Within a pair of work modules the two work modules are arranged such, that when one work module is arranged in the line of work stations the other one is arranged off the line.

Abstract: Method for changing working rolls of a roll stand provided with a roll displacement device located on the first side of the stand moving a roll along a loading axis (C, C?). Each has fastening means at a first end towards the first side and matching fastening means at a second end towards the second side of the stand opposite to the first side. Matching fastening means are on the displacement device. The substitute roll can be placed on either side of the stand. The displacement device operates by pulling when the substitute roll is on the second side simultaneously extracting the roll to be replaced towards the first side and loading the substitute roll from the second side; and, vice versa, by pushing when the substitute roll is on the first side of the stand. The various fastening means and matching fastening means are respectively coupled and decoupled.

Abstract: A roll changing carriage can be displaced transversely with respect to the strip rolling stand and a removal crossbar is provided for the removal of the set of backup rolls. In order to shorten the roll changing times and to automate the changing of the rolls, the removal crossbar can be positioned on the roll changing carriage and is provided with wheels on which the removal crossbar can be moved out of the roll changing carriage on guide rails running parallel to the rolls into the strip rolling stand on the intermediate roll rails, and can be pulled out of the strip rolling stand together with the set of backup rolls.

Abstract: The invention relates to a rolling mill (1) comprising several rolling frames (Fi) and support plates (7) that are provided on the operator side (BS) of the frames (Fi) and can be displaced transversally to the roll axes, said plates being equipped to receive sets of working rolls (14) and lying adjacent to the mill floor (9). The mill also comprises pits (8) that are situated on the operator side (BS) upstream of each frame (Fi), the bottom of said pits being configured to deploy sets of support rolls (12). The aim of the invention is to reduce the time required to exchange the rolls.

Abstract: A rolling mill drive with at least one drive spindle arranged between a drive unit and a driven roll and terminating in a spindle head connected detachably to the neck of the roll. A coupling and decoupling device is arranged between the neck of the roll and the spindle head of the drive spindle. The coupling and decoupling device includes a coupling sleeve, a coupling pin inserted releasably into the coupling sleeve, and a locking element which is displaceable transversely to the axis of rotation of the neck of the roll. The locking element is inserted into the coupling sleeve and engages behind the coupling pin in an operating position of the locking element. The locking element is capable of being coupled to a displacing device for displacing it.

Abstract: The invention relates to a method for changing sets of top rolls, lateral rolls, and a bottom roll, and mounted in chocks of a welding stand of a continuously operating longitudinal tube welding machine. The inventive method enables the rolls to be changed faster, using less appliances. Said method comprises the following steps: the top rolls are lifted; a dismantling/transport means is placed beneath the top rolls; the top rolls are lowered onto the dismantling/transport means and deposited on the same; and, once the top rolls have been removed, the dismantling/transport means is laterally withdrawn.

Abstract: Roll-changing tool having a dismantling device which can be supported on a rolling machine by a hook and which, on a carrier, has a lifting device mounting and a roll holder for a roll journal of a roll, the carrier having a trolley which can be moved in its longitudinal direction into the region of its head, carries the roll holder, whose holding opening faces the head and is located underneath the carrier, and the hook, which opens at the bottom, being fixed to the head of the carrier with a shaft extension ending in a projecting manner transversely with respect to the running direction of the trolley.

Abstract: A device for changing pairs of work rolls and/or pairs of backup rolls of roll stands, wherein the rolls are each supported in chocks and are movable out or in by a lower back up roll supported on a track and wheels. The work rolls on the drive side of the roll stand can be coupled to a hydraulic piston-cylinder actuator that is dimensioned in is stroke length for the removal or installation distance and can be uncoupled when it has been withdrawn by the required distance. A roll changing frame can be coupled to the actuator and, when the upper backup roll and the roll changing frame are supported on the lower backup roll, the pair of backup rolls can be moved out or back in. The actuator is coupled to a pusher with connecting arms aligned with ends of the rolls. The actuator is arranged on the drive side of the roll stand and is coupled to the pusher through a piston rod.

Abstract: A universal rolling stand with control of the space between the rolls comprises a pair of horizontal rolls and one or more vertical rolls with respective chocks, positioning housings and a guide for the chocks with adjustment tie rods (6, 7, 6?, 7?, 18, 18?, 19, 19?) anchored on one side to the housings and acting on the chocks for the adjustment and positioning of the rolls. Adjustment is performed by means of hydraulic capsules (8, 8?, 9, 9?, 20, 20?, 21, 21?) with two hydraulic chambers with dual actuation effect and a double stem at the ends of each tie rod.

Abstract: A device for holding at least one roller of a rolling machine that can rotate about a rotational axis includes two holding arrangements that can be arranged on opposite faces of the roller viewed in the direction of the rotational axis. The device further includes at least two coupling parts each configured for a coupled mode and an uncoupled mode. A first of the two coupling parts has at least one, preferably essentially straight first groove, and has a second groove that does not run parallel to the first groove. A second of the two coupling parts includes a first coupling element and a second coupling element, wherein the first coupling element projects further outward from the second coupling part than the second coupling element. In at least one implementation, the roller can be detached or removed from the holding arrangements when the holding arrangements are in uncoupled mode.

Abstract: A rolling mill for rolling or sizing of metallic pipes, bars and wires has a plurality of rolling units which are arranged on a straight line close to one another and can be exchanged in total, partly or individually, each of the rolling units having at least three rolls which are arranged in a star-like configuration around a rolling mill axis, drive shafts and motors each driving a respective one of the rolls in all the rolling units, a rolling unit housing provided for the rolling units, roll bearings provided for the rolls, and multi-part roll shafts provided for supporting the rolls so that the rolls can be exchanged without dismounting of the rolling unit housing and the roll bearings, the rolling units holding the rolls inside and outside of the rolling mill in their operational positions.

Abstract: A rolling train for the continuous rolling of strand shaped products has at each rolling location a pair of fixed stations which are closely spaced and have rails such that a mill stand at one station can be displaced away from the rolling line and be replaced at that location by a mill stand at the other station. The mill stands can be connected to the respective control and operating media sources by lines which are unreeled as the mill stand is moved away from the operating position or reeled up as the mill stand is moved into an operating position.

Abstract: The invention relates to a device and a working method for automatically changing the sets of rolls comprising work rolls, backup rolls and intermediate rolls of a single-stand or multi-stand strip rolling mill, by means of a roll changing carriage (2) which can be displaced transversely with respect to the strip rolling stand (1) and a removal crossbar (3) provided for the removal of the set of backup rolls (10/11). In order to shorten the roll changing times and to automate the changing of the rolls, it is proposed that the removal crossbar (3) can be positioned on the roll changing carriage (2) and is provided with wheels (4) on which the removal crossbar (3) can be moved in working steps according to the invention out of the roll changing carriage (2) on guide rails (5) running parallel to the rolls (10/11) into the strip rolling stand (1) on the intermediate roll rails (8), and can be pulled out of the strip rolling stand (1) together with the set of backup rolls (10/11).

Abstract: A quick change cassette system for a multi-roll leveler, such as may be used to flatten strips of material. The quick change system is designed for use with a leveler having an upper and lower cassette assembly containing upper and lower work rolls, respectively. The quick change system is also particularly suited for use with a lower work roll cassette that is mounted to the leveler in a hanging arrangement. A cart is mounted to the bottom side of the lower work roll cassette. Wheels are attached to a bottom portion of the cart to guide the cart into and out of the work envelope of the leveler along a set of guide rails. The cart can be moved manually or by means of a motor, cylinder, or other actuator. The cart remains attached to the lower work roll cassette during operation of the leveler. An upper work roll cassette may also be removed or installed to the leveler along with the lower work roll cassette.

Abstract: The invention regards a device for disassembly of the rolls of a rolling mill by translation, successively, on internal (5) and external (55) rails whereon run the supporting rollers (7) of the chocks (3).