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| Number | Title | Issue Date |
| 8171767 | Modular rolling mill A modular rolling mill has a mill pass line along which products are rolled in a rolling direction. The rolling mill comprises first gear units arranged along a first line parallel to the mill pass mill line. Each first gear unit is driven individually by a motor an... | 05/08/2012 |
| 7870775 | Drive arrangement for rolling mill In the case of a drive arrangement for a rolling mill, comprising at least one drive motor (M), a main gear mechanism (HG), a pinion gear mechanism (KWG), a rolling stand (G) with working rolls (AW), and the spindles, couplings and the like which connect these compo... | 01/18/2011 |
| 7406853 | Rolling machine and method thereof In the transverse wedge rolling machine as claimed in the invention the drive motor is a permanent magnet motor, especially a torque motor. Furthermore the rotational speed of the rollers is controlled depending on their rotary position. ... | 08/05/2008 |
| 7363791 | Rotary stamping apparatus and method of forming sheet metal A rotary stamping apparatus for forming moving sheet metal and having a die assembly moveable forward and backward along a linear path, with upper and lower dies on respective sides of the sheet metal, the dies being closeable on the sheet metal for forming, and, a ... | 04/29/2008 |
| 7354216 | Grease seal cup to retain lubrication for life extension in existing splined joint A grease seal cup for a splined joint between a drive shaft and a driven shaft comprises a cylindrical portion adapted to form a seal with the outer surface of the drive shaft and a seal with a sealing member, such as a spanner nut, of the driven shaft. The grease s... | 04/08/2008 |
| 7347073 | Rolling mill stand for the rolling of different rolled stocks which require different rolling forces A rolling mill frame for the rolling of different rolled stock which requires different rolling forces and which has working rolls, back-up rolls, optionally a roll being device for the working rolls and optionally a device for adjusting and balancing the back-up ro... | 03/25/2008 |
| 7341096 | Method for processing a continuously cast metal slab or strip, and plate or strip produced in this way The invention relates to a method for processing a continuously cast metal slab or strip, in which the slab or strip is passed between a set of rotating rolls of a rolling mill stand in order to roll the slab or strip. According to the invention, the rolls of the ro... | 03/11/2008 |
| 7337643 | Rolling mill drive with a coupling and decoupling device 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 spi... | 03/04/2008 |
| 7302820 | Method for changing the configuration of a rolling mill and advanced rolling mill for carrying out said method The invention relates to a method for changing the configuration of a rolling mill including at least two working rolls and two back-up rolls, means for applying a clamping load and two sets of hydraulic cambering cylinders, at least of both working rolls. Ac... | 12/04/2007 |
| 7191629 | Modular rolling mill A modular rolling mill comprises a plurality of separate rolling units arranged along a mill pass line. Each rolling unit includes at least two pairs of work rolls defining oval and round roll passes and carried on roll shafts that are staggered 90° with respect to... | 03/20/2007 |
| 7134818 | Tool-holding system for high-accuracy calibration of holes The invention relates to the field of toolings for high-accuracy finishing through-holes and non-through-holes, such as for example for calibration, lapping operations. More precisely the invention refers to a tool-holding system for high-accuracy calibration of the... | 11/14/2006 |
| 7086264 | Combined drive for a four-or-six-high rolling stand and an operating method for the same A roll stand has upper and lower rotatable working rolls defining a nip that pinches a workpiece strip and upper and lower vertically spaced rotatable backing rolls vertically flanking and engaging the working rolls. A drive includes a motor, upper and lower backing... | 08/08/2006 |
| 7082799 | Drive system for a rolling mill The invention concerns a drive system (1) for a rolling mill, especially for a cold pilger rolling mill with at least one roll frame (1) movable back and forth, at least one crank drive (3) which has a crank arm (4) with a counterweight (... | 08/01/2006 |
| 7024906 | Roll stand for rolling bar-shaped or tubular material The roll stand having at least one roll shaft 2, which carries a roll 6 and is subdivided into sectional shafts 3, 4 for the purpose of being able to change the roll, comprises at least one labyrinth-seal arrangement which is arranged in an annu... | 04/11/2006 |
| 6983635 | Coin press A coin press (10) includes a die (20) and an anvil (22) that abut and counter-rotate to nip and press a coin. The coin press (10) has a timing device (80) with a coin slot (84) and a gate (92) rotatable about a gate a... | 01/10/2006 |
| 6959578 | Multi-row rolling mills, methods of operating these mills, and rolling equipment using the mills A multi-row rolling mill has in one housing at least two groups of rolls including at least one pair of work rolls, and constructed so that when the workpiece to be rolled is passed one time, it can be rolled using said respective work rolls. The multi-row rolling m... | 11/01/2005 |
| 6920774 | Drive system for multi-roll leveler A drive system for a multi-roll leveler. The drive system is coupled to a set of upper work rolls of the leveler. Preferably, the lower, and not the upper set of work rolls provide the bending necessary to flatten the strip of material. The drive system employs a ge... | 07/26/2005 |
| 6546776 | High speed finishing block A multi-stand block for a rolling mill comprises a plurality of roll stands alternately arranged on opposite sides of a pass line along which a product is rolled in a downstream direction from an entry end to an exit end of the block. Drive shafts are pro... | 04/15/2003 |
| 6526795 | Expanding spline drive for high torque An expanding hub assembly for a capstan drive for a steel mill comprising a modified spline having a large cylindrical surface area for mating with an installed mill roll. The cylindrical surface is interspersed with a series of evenly spaced shallow axia... | 03/04/2003 |
| 6505491 | Rolling mill and rolling-mill train This invention provides a rolling mill and a rolling-mill train which are compact. Reducers to be coupled with them can be made compact. The inner surfaces of pipes to be rolled with the rolling mill and the rolling-mill train can be prevented from becomi... | 01/14/2003 |
| 6490902 | Compact two-line rod-rolling stand A two-line roll stand has a frame, an upper shaft on the frame, and two lower shafts on the frame spaced horizontally from each other below the upper shaft and forming with the upper shaft an isosceles triangle. Identical drive units each have a pair of r... | 12/10/2002 |
| 6405573 | Wire rod rolling line The present invention relates to a wire rod rolling line in which a finishing mill group rear stage is composed of a combination of a plurality of 4-roll mills. An object of the present invention is to provide a wire rod rolling line having a very high op... | 06/18/2002 |
| 6397650 | Roll stand for bar and wire rod rolling mill The present invention relates to a roll stand for bar and wire rod rolling mill, capable of being applied to various sizes of bars and wire rods by a small number of housing block sets, permitting maintenance work therefor to be carried out easily, and ha... | 06/04/2002 |
| 6349585 | Method and arrangement for operating rotating starting shears A method and an arrangement for operating a rotating starting shear operating in a start-stop operation on rolling stock travelling at different speeds in wire mills, light-section mills, medium plate mills and billet mills, wherein the shear, whose gear ... | 02/26/2002 |
| 6233996 | Driving mechanism for industrial installations, in particular for primary industry installations A drive system for industrial plant sections, in particular for system sections in the basic industries, having at least one electric motor and at least one converter with a voltage link, through which the electric motor is connected to an AC-voltage powe... | 05/22/2001 |
| 6216520 | Rolling mill A rolling mill comprising a roll unit and a drive unit for driving the roll unit. The drive unit comprises an outer housing, a pair of large-diameter ring-like driving bevel gears disposed concentric with the pass line, an input shaft mechanism for rotati... | 04/17/2001 |
| 6199476 | Roll machine and process for operating the same A roll machine is provided. A plurality of rolls are disposed in a stack to define a plurality of nips therebetween adapted to treat a material web. At least two of the plurality of rolls are driven rolls. A drive control commonly controls the driven roll... | 03/13/2001 |
| 6189352 | Drive device for roll stands A driving arrangement for rolling stands of a rolling mill, is described. The driving arrangement includes a control system which prescribes desired values for the rolling stands via control units, the rolling stands having at least one electric motor whi... | 02/20/2001 |
| 6138886 | Device in a wire rolling mill A device in a wire rolling mill includes a pair of grooved rolls. Each grooved roll is fixedly attached to the free end of a rotatably supported spindle. Each grooved roll is positionable relative to the other so that they between themselves define a roll... | 10/31/2000 |
| 6128934 | Stretch reduction mill A method and apparatus that provides a multiple-stand stretch reduction mill. A single master controller monitors and controls the roll speed at each roll stand in the mill, automatically and simultaneously maintaining each stand's roll speed at a pre-det... | 10/10/2000 |
| 6109085 | Forming apparatus using a pair of rollers The forming apparatus including: at least one forming roller; a roller shaft, on which the forming roller is attached; a pair of mutually spaced apart bearing stands, on each of which the roller shaft is rotatably and axially supported; a first coupling a... | 08/29/2000 |
| 6062058 | Roll stand A roll stand with two rolls forming a gap has each roll connected to a separate drive motor by a drive train having a spindle with a toothed coupling to the drive roll. One of the drive trains includes two components connected to each other by a flexible ... | 05/16/2000 |
| 6053022 | Modular rolling mill In a modular rolling mill gear units are installed between selected rolling units in place of other rolling units which haven removed from the mill pass line to thereby provide a gap in the rolling sequence. Each gear unit is coupled to the drive units pr... | 04/25/2000 |
| 6033310 | Variable length drive shaft A variable length light weight drive shaft for a rolling mill roll including: a driven first end including a universal joint connecting with an end of a male splined shaft having an axial bore and counter bore and a driving second end including a universa... | 03/07/2000 |
| 6029492 | Fine steel or wire train with roughing train, intermediate train and multiple-stand finishing block A fine steel or wire train with a multiple-stand roughing train, a multiple-stand intermediate train and a finishing block composed of six or eight or ten roll stands with a common drive, wherein at least the two last roll stands of the finishing block ar... | 02/29/2000 |
| 5979207 | Rolling mill drive with gear-type joint spindles and with a device for circulatory lubrication A rolling mill drive with gear-type joint spindles arranged between driveable rolls and the gear units of the driveable rolls and equipped with a device for circulatory or pressure lubrication of the gear units. Each spindle has a grooved oil supply ring ... | 11/09/1999 |
| 5953948 | Wire rolling apparatus In a wire rolling apparatus, a pair of first wall portions of a roll housing support the rotating shaft of a backup roll, and a second wall portion connects the pair of first wall portions to each other. Even if a large force is applied to the rotating sh... | 09/21/1999 |
| 5934130 | Rolling mill drive apparatus, rolling mill and rolling method A rolling mill drive apparatus for driving any rolls of a pair of work rolls, 2 to 4 intermediate rolls and 2 to 4 backup rolls comprises a drive roller without tooth, rotated by an electric motor, at least one driven roller without tooth, contacting with... | 08/10/1999 |
| 5921152 | Optional multi-ratio gear transmission system 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 ea... | 07/13/1999 |
| 5860310 | Mill train having at least one roll stand with an AC drive system A mill train comprising: at least one roll stand for rolling rolling stock; at least one AC motor operatively coupled to the roll stand to drive same; and a controller for controlling the motor, wherein the motor speed is adjustable between a minimum spee... | 01/19/1999 |
