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.

A roll stand having work rolls mounted therein. The roll stand has at least one upper mounting rail, which is mounted on the drive-side roll stand frame and oriented in a transverse direction to a rolling line running through the roll stand. In order to be able to keep the assembly space in the roll stand over the rolling line free during rollingexcept for a roll changeand still change the roll efficiently, the upper mounting rail is configured to be moved into the rolling line and out of the rolling line, starting from the drive-side roll stand frame.

A roll-changing device (1) for changing the working and/or intermediate rolls (2) of a rolling mill stand includes a roll-changing carriage (3), with which rolls (2) to be changed out or in can be transported. In order to further develop such a roll-changing device in such a way that it is possible to ensure simplified and safe loading and unloading of a roll-changing carriage, the roll-changing device (1) includes a cartridge (4) that can be detachably arranged in the roll-changing carriage (3). The cartridge (4) is provided with receiving spaces (5) for the rolls (2).

A metal strip rolling mill installation including a rolling mill (L), having a roll stand and a set of rolls, inside the stand. The installation includes a robotic system (1) suitable for performing the rolling mill roll changing operations. A gripping tool change magazine (MAG) includes a first grasping tool configured for inserting and extracting a work roll, a second grasping tool configured for inserting and extracting first intermediate rolls, a third grasping tool is configured for inserting and extracting second intermediate rolls, and a fourth grasping tool is configured for inserting and extracting sets of rollers.

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.

An installation for planishing running metal product (PM) of strip or plate type includes: a frame (B) in which are disposed a lower planishing cassette (C1) and an upper planishing cassette (C2), a lower drive device (Me1) for driving planishing rollers of the lower cassette in rotation, an upper drive device (Me2) for driving planishing rollers of the upper cassette in rotation. A displacement device (MD) displaces a secured assembly including the lower cassette and lower drive. The displacement device is activated for removal of the lower cassette from the frame toward one side (CM) or for insertion of the lower cassette from the one side into the frame. The secured assembly includes a replacement tool (OR) coupled to the lower cassette on a second operator side (CO) opposite the first motor side in relation to the product running axis (D). A method associated with the planishing installation is also described.

A method for changing work roll in a rolling mill which limits the risk of scratching the work roll, or even the risk of scratching the metal strip, upon extracting or inserting the work roll, by virtue of a mechanical separation element, in particular of the branches of a fork system, inserted by a robotic element.

The invention relates to a straightening machine (1) for straightening an elongated semifinished product with straightening roller elements (6), with a roller table line (3) designed as a conveying section (4), with a stand device (7), which holds the straightening roller elements (6) with respect to the conveying section (4) and comprises a drive-side stand half (17) and an operator-side stand half (18), which is displaceable with respect to the drive-side stand half (17), with a changing device (25) for changing the straightening roller elements (6) and with a changing path (35), along which the straightening roller elements (6) can be moved for changing, in which machine the straightening roller elements (6) are movable on the one hand by means of the operator-side stand half (18) along a first segment (36) of the changing path (35), which extends in a horizontal displacement plane (20), and on the other hand by means of the changing device (25) along a further segment (37) of the changing path (35), which extends in a horizontal changing plane (32), characterized in that the horizontal changing plane (32) is arranged in the region of the physical vertical extent (40) of the operator-side stand half (18).

A rolling mill stand for rolling a metallic product (P) that includes, inter alia: first and second movable rails arranged to allow unimpeded movement of work roll chocks of upper and lower work rolls when in an idle position during rolling operations, and replacement of the upper and lower work rolls when in a service position. Methods are provided for moving the first and second movable rails between the idle position and the service position in order to replace the upper and lower work rolls.

A casting/rolling installation for producing hot-rolled strip. In order to save investment costs for the roll changing device in a corresponding installation with two parallel casting lines, without a roll change taking place in the process in a less operationally reliable and more complicated manner, the roll changing device is configured in the form of a rotary table and arranged in the intermediate space between the two casting lines.