By Endless Belt Or Conveyor Roll Patents (Class 72/251)
  • Patent number: 10259027
    Abstract: A cold rolling facility includes: a heating device; a tandem mill including a plurality of rolling mills; a meandering-amount measuring unit; a meandering-movement correction device; a shape measuring unit; a shape controller configured to control a shape of a steel sheet after being cold-rolled by the rolling mill located on the uppermost stream side; and a controller configured to control operations of the meandering-movement correction device based on a measurement value of a meandering-movement amount of the steel sheet by the meandering-amount measuring unit to control a meandering movement of the steel sheet before being heated, and configured to control operations of the shape controller based on a measurement value of a shape of the steel sheet by the shape measuring unit to control the meandering movement of the steel sheet that is attributed to cold rolling of the steel sheet by the tandem mill.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: April 16, 2019
    Assignee: JFE Steel Corporation
    Inventors: Masayasu Ueno, Yoshimitsu Harada, Hidemasa Kodama, Tatsuhito Fukushima
  • Patent number: 9132459
    Abstract: An adjustment device and method to guide a metal product along a determinate nominal rolling axis. The device comprises a central body disposed astride the rolling axis, two guide units mounted movable on the central body, opposite each other with respect to the rolling axis and each provided with at least a guide roller for the metal product, and an adjustment mechanism mounted on the central body and operatively connected to both the guide units, in order to actuate the selective movement thereof with respect to the central body at least in an approach toward the rolling axis. The adjustment mechanism comprises a system of pantograph levers having two levers pivoted to each other and to the central body in correspondence to the rolling axis by means of a pin, and first constraint means disposed on each lever on opposite sides to the pin, so as to connect each lever to both the guide units.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: September 15, 2015
    Assignee: DANIELI & C. OFFICINE MECCANICHE SPA
    Inventors: Emanuele Iogna Prat, Marco Di Giacomo
  • Publication number: 20150107070
    Abstract: Apparatus for forming a bent sheet of foil, comprising a holder for holding a roll of foil; a motor for horizontally feeding the foil from the roll; a bending station for providing the fed foil with an angled portion; a controller for controlling a desired length of foil to be fed by commanding operation of said motor; and a cutting station for cutting said fed foil at said desired length, whereby to form constant length sheets of said foil. The controller is operable to command operation of the motor to sequentially feed the foil a first distance corresponding to a selected longitudinal dimension of the angled portion and then to feed the foil a second distance corresponding to a selected longitudinal dimension of a foil sheet to be formed.
    Type: Application
    Filed: December 26, 2014
    Publication date: April 23, 2015
    Inventors: Moran BORENSTEIN, Maor GROSS
  • Publication number: 20150101384
    Abstract: A forming machine for forming a longitudinal margin of a strip of material into a desired profile and methods encompassing the steps inherent in the described mechanical structures and operation thereof. The forming machine includes a frame, a drive mechanism, a plurality of forming elements, and an edge guide mechanism. The edge guide mechanism applies pressure along the edge margin in a lateral direction, thereby following the edge margin as the strip is advanced through the machine. The edge guide includes a carriage assembly attached to the frame that comprises a carriage support frame and a carriage movably disposed thereon. The edge guide mechanism includes an actuator connected to the carriage that is operative to urge the carriage toward edge margin. At least one guide roller is mounted to the carriage and adapted to receive the edge margin of the strip.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 16, 2015
    Inventors: Ronald W. Schell, Brandon Tatum, Adam J. Binderup
  • Patent number: 8783084
    Abstract: The invention relates to a wire feed station of a wire shaping machine, said station including grooved rollers functioning in pairs and rotating in reverse directions with respect to each other. The wire is clamped between said rollers by these moving closer to one another. Both rollers of the same pair of driving rollers are supported at the front of the same bearing block unit, said bearing block being elastically deformable to absorb a relative movement of the rollers. Preferably, said bearing block also supports an endless transmission screw on which are engaged a couple of transmission wheels coaxial with the driving rollers which they drive into rotation. More particularly, a bearing block is deformed so that a relative movement of the rollers results in a rotation-deformation of the bearing block about the transmission screw axis.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: July 22, 2014
    Assignee: Numalliance SAS
    Inventor: Joël Etienne
  • Publication number: 20140033783
    Abstract: A feed roll and stripper assembly for a rolling mill includes at least one feed roll at each of an entry side and an exit side of a pair of work rolls and a stripper at each of the entry and exit side of the pair of work rolls. Each stripper has a stripper tip. At least one of the strippers or feed rolls are adapted to have an adjustable vertical separation from one of the work rolls, according to the direction of movement of material through the work rolls. The vertical separation of the at least one stripper or feed roll from the one work roll on the entry or exit side is different from the vertical separation of the other at least one stripper or the feed roll on the other of the entry or exit side. Each stripper tip is separated from one of the work rolls.
    Type: Application
    Filed: April 11, 2012
    Publication date: February 6, 2014
    Applicant: SIEMENS PLC.
    Inventors: Michael Trevor Clark, Brian Cooper, Stuart Leflay, Philip Roound
  • Patent number: 8479548
    Abstract: An electric wire sizing-cutting apparatus including an electric wire delivery apparatus, which is easily handled and can smoothly supply the electric wire without generating a kink, is provided. The electric wire delivery apparatus includes: a transfer means transferring an electric wire, which is delivered from an electric wire reel, along a longitudinal direction of the electric wire; a correcting means arranged between the electric wire reel and the transfer means and correcting a bending habit of the electric wire by allowing the electric wire to pass through between a plurality of rollers arranged zigzag; and a rotation controlling means arranged on an upstream-side of the correcting means and putting the electric wire between a pair of rollers biased in a direction approaching each other.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: July 9, 2013
    Assignee: Yazaki Corporation
    Inventors: Teruyuki Ishibashi, Koji Higuchi
  • Patent number: 8459083
    Abstract: A roller guiding system for thin strips (20) at a rolling system outlet which allows a safe guiding without take-off and consequent tipping/folding of the head of the strip and without cobbles even at high feeding speeds. The system of the invention prevents the strip from impacting or sliding on the upper containment devices (8) or on the rollers (4?) by its upwards or downwards movement, thus avoiding possible damages to the surface, such as scratches or lines. Furthermore, such a guiding system acts on the mechanical-aerodynamic phenomenon which causes instability in the head moving by making a self-centering guiding system which is thus suitable for improving the winding quality of the coil itself.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: June 11, 2013
    Assignee: Danieli & C. Officine Meccaniche S.p.A.
    Inventors: Alfredo Poloni, Luciano Vignolo, Luca Sandrin, Fabio Vecchiet, Matteo Nobile
  • Patent number: 8434338
    Abstract: The invention relates to a device (1) for cooling a metal strip (2) between two rolling stands (3), wherein the strip (2) is led over a leading-over element (4) of a flat form and arranged under the leading-over element (4) is a spraying element (5), which directs cooling medium (7) onto the underside (8) of the strip (2) through at least one opening (6) in the leading-over element (4). To achieve an improved spray pattern, the invention provides that at least two openings (6) are introduced into the leading-over element (4), said openings being arranged next to each other in a direction transverse (Q) to the conveying direction (F) of the strip (2) and having an elongated form, wherein the longitudinal axis (9) of the opening (6) is aligned at an angle (?) with respect to the conveying direction (F) of the strip.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: May 7, 2013
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Jürgen Armenat, Stephan Fischer
  • Patent number: 8402802
    Abstract: A conveying device includes a plurality of conveying rollers supported in parallel at predetermined intervals, and conveys a workpiece to a heat-retaining/heating furnace from a rolling mill by the conveying rollers. The conveying device includes an impact prediction data collecting unit and a control unit. The impact prediction data collecting unit acquires data on the upstream of the heat-retaining/heating furnace. The data is used to predict the magnitude of an impact applied to rollers in the furnace, which are positioned in the heat-retaining/heating furnace, of the conveying rollers by the workpiece. The control unit predicts the magnitude of an impact from the data, which is acquired by the impact prediction data collecting unit, and adjusts the conveying speed of the workpiece in the heat-retaining/heating furnace according to the magnitude of the impact.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: March 26, 2013
    Assignees: IHI Metaltech Co., Ltd, IHI Corporation
    Inventors: Masahiro Kuchi, Hajime Ishii, Hisashi Honjou
  • Patent number: 8291736
    Abstract: Disclosed is a rolling mill comprising a roll stand with working rolls, a roll train located at the feeding end of the roll stand, and a control device. The working rolls form a roll gap. The control device triggers the roll stand such that the working rolls rotate at a certain peripheral speed while triggering the roll train located at the feeding end of the roll stand in such a way that the leading edge of the strip-shaped rolling stock reaches the roll gap at a feeding speed that is greater than the peripheral speed. The control device adjusts the peripheral speed and the feeding speed to each other in such a way that a potential angled position of the leading edge relative to the roll gap is at least reduced as a result of said adjustment.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: October 23, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventor: Birger Schmidt
  • Patent number: 8161786
    Abstract: Incoming tubes are turned and fed into a pilger mill by use of a single gearbox using a rotating dual track drive system. The dual track system holds the incoming tube while tube reducing (metal tube forming) occurs by the pilger tooling. When the pilger tooling is free of the incoming tube product, the dual track drive moves the tube into the pilger tooling by feeding an incremental amount of tube product. The dual track drive also indexes the incoming tube at the correct time and at a pre-determined amount. Additionally, the gearbox sub-assembly bumps the tube at a pre-determined time while the tube is free from the tooling.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: April 24, 2012
    Inventor: Glen Stapleton
  • Patent number: 8104316
    Abstract: A piercing mill includes a plurality of inclined rolls, a plug, a pusher, and an undriven guide roll. The pusher pushes a round billet from the rear end at least until the round billet advances for a prescribed distance after contacting the inclined rolls. The guide roll is between the inclined rolls and the pusher and includes a roll shaft and a roll surface, with the roll shaft arranged obliquely with respect to a pass line PL. The sectional shape of the roll surface is a concave arch shape. The round billet is rotated by the guide roll and the friction force generated when the round billet contacts the inclined rolls is reduced. Consequently, the wear of the inclined rolls can be restrained if the round billet is pierced and rolled while it is pushed in between the inclined rolls using the pusher.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: January 31, 2012
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Naoya Hirase, Tomio Yamakawa, Kazuhiro Shimoda
  • Publication number: 20110271806
    Abstract: Methods and apparatus for manufacturing articles, such as gutter covers, from a flat feedstock are provided herein. In some embodiments, an apparatus for fabricating articles having apertures from a flat feedstock may include an uncoiler to supply a flat feedstock in roll form; a first flying press configured to receive the feedstock, wherein the first flying press houses a tool and die to form one or more apertures in the feedstock; a roll former configured to pull the feedstock from the uncoiler and through the flying press, the roll former comprising a plurality of rollers to create a desired profile along the width of the feedstock; and a flying shear to cut the feedstock to a desired length.
    Type: Application
    Filed: May 4, 2010
    Publication date: November 10, 2011
    Applicant: RK INDUSTRIES, INC.
    Inventor: RICHARD L. KUHNS
  • Patent number: 7984634
    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.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: July 26, 2011
    Assignee: Main Management Inspiration AG
    Inventors: Heinrich Marti, John Turley
  • Patent number: 7854157
    Abstract: The method, in which base material ingot 1 is heated and softened in an electric furnace 3, drawn with a pair of pinch roller 6 and 6, and elongated to make base material rod 7 having a smaller diameter than the ingot, features: forming either a roller groove 11 having a curvature radius which is larger than the outer diameter of the base material rod 7 or a V-shaped roller groove 11 having the cross section consisting of straight lines on the surface of the pinch roller 6 made of metal; nipping with the facing roller grooves 11 and 11 respectively formed on the surfaces of a pair of said pinch rollers 6 and 6; and drawing said base material rod.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: December 21, 2010
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Soichiro Kemmochi, Waichi Yamamura, Takaaki Nacao, Mitsukuni Sakashita
  • Publication number: 20100294009
    Abstract: A conveying device includes a plurality of conveying rollers supported in parallel at predetermined intervals, and conveys a workpiece to a heat-retaining/heating furnace from a rolling mill by the conveying rollers. The conveying device includes an impact prediction data collecting unit and a control unit. The impact prediction data collecting unit acquires data on the upstream of the heat-retaining/heating furnace. The data is used to predict the magnitude of an impact applied to rollers in the furnace, which are positioned in the heat-retaining/heating furnace, of the conveying rollers by the workpiece. The control unit predicts the magnitude of an impact from the data, which is acquired by the impact prediction data collecting unit, and adjusts the conveying speed of the workpiece in the heat-retaining/heating furnace according to the magnitude of the impact.
    Type: Application
    Filed: January 15, 2009
    Publication date: November 25, 2010
    Inventors: Masahiro Kuchi, Hajime Ishii, Hisashi Honjou
  • Publication number: 20100031720
    Abstract: Methods and apparatus for rolling metal sheet or plate are provided. The method comprises the step of feeding the metal plate or sheet into a rolling mill at an angle. The apparatus comprises a rolling mill having a tilted feed table, or an apron upon which a transfer table and tilted feed table can rest. Through-thickness gradient and shear texture can be improved using the methods and apparatus of the invention.
    Type: Application
    Filed: August 6, 2008
    Publication date: February 11, 2010
    Inventors: Dincer Bozkaya, Peter R. Jepson
  • Publication number: 20100011831
    Abstract: A piercing mill includes a plurality of inclined rolls, a plug, a pusher, and an undriven guide roll. The pusher pushes a round billet from the rear end at least until the round billet advances for a prescribed distance after contacting the inclined rolls. The guide roll is between the inclined rolls and the pusher and includes a roll shaft and a roll surface, with the roll shaft arranged obliquely with respect to a pass line PL. The sectional shape of the roll surface is a concave arch shape. The round billet is rotated by the guide roll and the friction force generated when the round billet contacts the inclined rolls is reduced. Consequently, the wear of the inclined rolls can be restrained if the round billet is pierced and rolled while it is pushed in between the inclined rolls using the pusher.
    Type: Application
    Filed: September 29, 2009
    Publication date: January 21, 2010
    Inventors: Naoya Hirase, Tomio Yamakawa, Kazuhiro Shimoda
  • Patent number: 7594418
    Abstract: An arc type blade transfer apparatus is disclosed. The apparatus includes a main body which is formed with a space through which an arc type blade passes, and a transfer roller which is rotatably mounted to the main body and is rotated to transfer the arc type blade. The transfer roller is formed in a truncated-conical shape including a small-diameter end, a large-diameter end and a tapered peripheral surface, and slantedly mounted with respect to a surface of the arc type blade so that the tapered peripheral surface of the transfer roller is in parallel contact with the surface of the arc type blade. Accordingly, the apparatus can transfer the arc type blade having an inner radius and an outer radius, transferring distances of which are different from each other, by one transfer roller, thereby simplifying a structure of the apparatus and accurately transferring the arc type blade.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: September 29, 2009
    Inventor: Hong-Soon Park
  • Publication number: 20090223269
    Abstract: The present invention relates to a method and an apparatus for continuously manufacturing metal sheets. The method includes: (a) providing a first metal coil having a first end and a second end; (b) continuously driving the first end of the first metal coil to move forward; (c) providing a second metal coil having a first end and a second end; and (d) lapping and rolling the first end of the second metal coil and the second end of the first metal coil, so that the second metal coil moves forward following the first metal coil. In this way, the present invention only causes a few seconds' delay in rolling, so a small piler is needed, thus reducing the space of the production line and saving the facility cost.
    Type: Application
    Filed: March 7, 2008
    Publication date: September 10, 2009
    Applicant: METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE
    Inventor: Chin-Chuan HUANG
  • Patent number: 7559220
    Abstract: A bar speed changing device (48) comprising a pair of upper rollers (55, 55?) and a pair of lower rollers (59, 59?). Said device receives a bar section with the rollers (55, 55?, 59, 59?) in the open position and rotating at a given speed. Upon leaving the device (48) said sections are fed into axially arranged peripheral seats (58) of rotating drum channels. Control devices calculate the speed at which the bar section must be released, upon completion of the braking action, according to the position that said section must occupy in one of said seats and on the basis of the bar-seat friction coefficient. When the rollers (55, 55?, 59, 59?) receive the bar, they turn at the calculated release speed. At a predefined moment, such to enable braking in the correct space and time, the four rollers close on the section and exert the braking action, exploiting the dynamic friction between the roller-section.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: July 14, 2009
    Assignee: Danieli & C. Officine Meccanicite S.p.A.
    Inventors: Giuseppe Bordignon, Ivan Paiaro, Andrea De Luca, Alfredo Poloni
  • Patent number: 7543470
    Abstract: A roll straightener which is capable of being switched between a zigzag type and an opposed type is disclosed. The roll straightener has an odd-number of pairs of upper and lower rolls. A group of the lower rolls including the second lower roll from an insertion side of the straightener up to a lower roll located at a middle position are movable in vertical and transverse directions of the rolls, while the remaining upper rolls and lower rolls are movable in only the vertical direction.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: June 9, 2009
    Assignee: Nihon Shinkan Co., Ltd.
    Inventors: Shinichi Taguchi, Tetsuo Hosonuma
  • Patent number: 7469565
    Abstract: A seamless tube is manufactured while effectively suppressing the occurrence of carburization in the seamless tube without interfering with operations. A seamless tube is manufactured by a step of washing at least a portion of a conveyor installed in a conveying step of a mandrel bar B which is situated from a lubricant applying device 7 to the entrance of a mandrel mill 8, a step of washing, on the upstream side of the lubricant applying device 7, a mandrel bar B which was used for elongation rolling, and a step of applying a non-graphite-based lubricant to the mandrel bar B with the lubricant applying device 7, wherein the conveyor and the mandrel bar B are each washed such that the amount of graphite C2 (g/m2) adhering to the surface of the mandrel bar B before it is provided to elongation rolling and the amount of carbon C1 (g/m2) contained in the organic binder of the applied lubricant satisfy Equation 1: 0.08×C1+0.05×C2?3 and Equation 2: 3?C1+C2?50.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: December 30, 2008
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Kouji Nakaike, Yasuyoshi Hidaka, Sumio Iida, Hiroki Kusuda, Masami Sakiyama
  • Publication number: 20080257005
    Abstract: Please amend the Abstract of the Disclosure to read as follows. In accordance with 37 CFR §1.72, the abstract is submitted herewith on a separate sheet of paper, following page 6 of this amendment. A winding assembly for a rolling mill for sheet metal, comprising: which includes a winding spool, which turns about a first axis, and wound on which is a coil (formed by a continuous sheet of metals, An ironing roll, which turns about a second axis parallel to the first axis. An oscillating support carries the ironing roll and is associated to actuator means, which are designed to push the ironing roll against the coil being formed. A pass-line roll, turns about a third axis parallel to the first and second axes. At least one deflector roll turns about a fourth axis parallel to the first, second, and third axes and is set between the pass-line roll and the ironing roll.
    Type: Application
    Filed: March 13, 2008
    Publication date: October 23, 2008
    Applicant: FATA S.P.A
    Inventor: Daniele BERSIA
  • Publication number: 20080098784
    Abstract: The invention relates to a method for straightening a metal strip (1) which is guided in the direction of transportation (R) through a straightening machine (2) and is straightened. In the straightening device (2), the metal strip (1) is impinged upon by a straightening force (F) which is applied by a plurality of straightening rollers (3) in the direction (N) which is perpendicular to the surface of the metal strip (1). According to the invention, prior to the metal strip (1) entering into the straightening machine (2), the thickness (d) of the metal strip (1) is determined and the position (a) of the straightening rollers (3) in the direction (N) which is perpendicular to the surface of the metal strip (1) is taken into account according to the determined thickness (d).
    Type: Application
    Filed: August 16, 2005
    Publication date: May 1, 2008
    Inventors: Hans-Georg Hartung, Andreas Gramer, Ralf-Hartmut Sohl, Peter de Rock, Bodo Falkenhahn
  • Patent number: 7363792
    Abstract: The invention relates to a device for producing a metallic product (1) by rolling, comprising: a first area (2) inside of which slabs are produced by primary shaping; a second area (3), which is located downstream from the first area (2) in the direction of flow (F) of the material and inside of which at least one first rolling device (4) for rolling slabs is arranged; a third area (5), which is located downstream from the second area (3) in the direction of flow (F) of the material and inside of which at least one second rolling device (6) for rolling slabs or the intermediate product produced therefrom is arranged, and; a fourth area (7), which is located downstream from the third area (5) in the direction of flow (F) of the material and inside of which at least one aftertreating device (8) for the rolled material is arranged.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: April 29, 2008
    Assignee: SMS Demag AG
    Inventors: Wilfried Modrow, Ulrich Skoda-Dopp
  • Patent number: 7340932
    Abstract: A rolling-mill cooling unit has a cooling-unit conveyor transporting fanned-out loops of wire in a transport direction toward a coiler spaced downstream from the cooling-unit conveyor and serving to organize the fanned-out loops of wire into coils or bundles. A feeder conveyor extending in the direction has an upstream end juxtaposed with the cooling unit and a downstream end juxtaposed with the coiler and is operable to advance the loops of wire from the unit to the coiler. The entire feeder conveyor can be shifted relative to the coiler and to the cooling unit in the direction so as to displace the upstream and downstream ends relative to the cooling unit and coiler.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: March 11, 2008
    Assignee: SMS Meer GmbH
    Inventors: Jaroslaw Wysocki, Gerhard Herzog, Lutz Kümmel
  • Patent number: 6782726
    Abstract: The invention relates to a hot rolling mill, with at least one flatness measuring roller, pertaining to at least one rolling bed, arranged before and/or after one of the stands, which influences the settings of at least one of the stands. The aim of the invention is to improve the arrangement of the roller bed working rollers and the flatness measuring roller, such that the flatness measuring roller may be, optionally, either brought into operation, or be withdrawn into a protected position, whereby, in this case, the gap in the rolling bed thus formed can be closed. Said aim is achieved, whereby the flatness measuring roller may be stored, away from its working position, behind a screen and that the rolling bed is completed with at least one retractable working roller.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: August 31, 2004
    Assignee: SMS Demag AG
    Inventors: Jürgen Armenat, Martin Braun, Reinhard Irle
  • Patent number: 6761053
    Abstract: A material 1 to be shaped is reduced and formed by bringing dies with convex forming surfaces, when viewed from the side of the transfer line of the material 1, close to the transfer line from above and below the material 1, in synchronism with each other, while giving the dies a swinging motion in such a manner that the portions of the forming surfaces of the dies, in contact with the material 1, are transferred from the upstream to the downstream side in the direction of the transfer line.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: July 13, 2004
    Assignees: Ishikawajima-Harima Heavy Industries Co., Ltd., NKK Corporation
    Inventor: Nobuhiro Tazoe
  • Patent number: 6745607
    Abstract: A thin steel strip is passed through a pinch roll stand comprising pinch rolls to a hot rolling mill comprising work rolls and backing rolls. In advance of rolling mill, the strip passes over support rolls. An anti-crimping guide roll located immediately in advance of the rolling mill is mounted on a pair of rocker structures so as to be rasiable from a lower inoperative position to lift the strip out of a straight line path so as to pass around the anti-crimping roll and to be wrapped about the upper work roll, that roll supports the strip and resists buckling of the strip and the generation of crimping defects.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: June 8, 2004
    Assignee: Castrip LLC
    Inventors: Heiji Kato, Michael Angel Lopez, John Albert Ziegelaar
  • Publication number: 20030167818
    Abstract: A thin steel strip is passed through a pinch roll stand comprising pinch rolls to a hot rolling mill comprising work rolls and backing rolls. In advance of rolling mill, the strip passes over support rolls. An anti-crimping guide roll located immediately in advance of the rolling mill is mounted on a pair of rocker structures so as to be rasiable from a lower inoperative position to lift the strip out of a straight line path so as to pass around the anti-crimping roll and to be wrapped about the upper work roll, that roll supports the strip and resists buckling of the strip and the generation of crimping defects.
    Type: Application
    Filed: August 20, 2002
    Publication date: September 11, 2003
    Inventors: Heiji Kato, Michael Angel Lopez, John Albert Ziegelaar
  • Publication number: 20020104358
    Abstract: A heat resistant roll is useful for supporting and conveying articles for transport at high temperature. The roll has a mandrel core and a sleeve. The sleeve is enlarged over the core to define a radial clearance therebetween. The mandrel and the sleeve have differing coefficients of thermal expansion. Interposed between the mandrel and the sleeve is a brush roll. The brush roll maintains engagement with both the mandrel and the sleeve during thermal expansion.
    Type: Application
    Filed: February 6, 2001
    Publication date: August 8, 2002
    Inventor: Charles M. Hart
  • Patent number: 6237387
    Abstract: A guide roller apparatus has entry guide and an upper guide provided at an entrance side of an advancing path for a workpiece material to be rolled, and side rollers, upper and lower guide rollers and further tip end chips downward thereof are sequentially provided. The the workpiece is guided into grooves of rolling rollers of a rolling mill without force by the guide roller apparatus. The guide roller apparatus guides the workpiece material having a width larger than that of a caliber of the rolling roll without rolling flaw or torsion occurring in the material to be rolled.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: May 29, 2001
    Assignee: Kotobuki Sangyo Kabushiki Kaisha
    Inventors: Sadao Yoshizawa, Toshio Takaoka, Takahiro Miyamoto
  • Patent number: 5970773
    Abstract: A rolling plant for rolling all types of finished sections from flat blooms or preliminary sections with close to final dimensions, wherein the blooms or preliminary sections arrive from a continuous casting plant and may be stored in reheating furnaces arranged in front of the plant and/or may be maintained at rolling temperature. The rolling plant includes a compact rolling group with two universal stands arranged closely one behind the other and an edging stand arranged between the universal stands. A roughing group is arranged in front of and parallel offset to the compact rolling group, wherein the roughing group is composed of a group of a vertical stand, a horizontal stand and a universal stand arranged closely one behind the other.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: October 26, 1999
    Assignee: SMS Schloeman-Siemag Aktiengesellschaft
    Inventors: Georg Engel, Ulrich Svejkovsky, Hans-Jurgen Nowak
  • Patent number: 5966978
    Abstract: A method and device for alternatingly operating one of several reels arranged following a continuous strip rolling mill, wherein the continuously arriving rolling stock is cut into coil weights of desired lots by means of flying shears provided at the exit of the rolling mill.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: October 19, 1999
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Gunter Kneppe, Martin Braun
  • Patent number: 5910185
    Abstract: An apparatus for guiding hot-rolled strips through an inductor, arranged between two adjacent roll stands, of an induction heating device, in particular within a finishing mill behind a strip-casting installation or thin-slab casting installation. The apparatus guides the strip between the roll stands under controlled tension over at least two guide rollers arranged on both sides of the inductor in a plane of travel of the strip which extends centrally through the inductor space between the induction coils. A tension-measurement roller is provided for regulating the tension of the strip and is arranged in front of the inductor and the first guide roller.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: June 8, 1999
    Assignee: Mannesmann Aktiengesellschaft
    Inventor: Dieter Figge
  • Patent number: 5884518
    Abstract: A runout and braking device, particularly for medium steel rolled sections, includes a run-in roller table and a braking device arranged laterally offset and parallel to the run-in roller table, wherein the run-in roller table and the braking device form a runout and braking system. The runout and braking device of the above-described type includes a braking device with a rigidly arranged braking trough with a bottom which is outwardly inclined relative to the horizontal direction. The run-in roller table includes a lifting bottom forming a plane, wherein conveying rollers mounted below the lifting bottom protrude above the plane of the lifting bottom. Pivoting devices are provided for pivoting the run-in roller table together with the lifting bottom and the conveying rollers arranged below the lifting bottom about a laterally offset pivoting point into an inclined position toward the braking trough.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: March 23, 1999
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Rolf Stodt, Hans-Peter Drugh
  • Patent number: 5860311
    Abstract: Method and device to guide the strip between the stands in a rolling mill finishing train to roll thin strips of a final thickness in the order of 1.2 mm and less, the inter-stand device including at least a guide device arranged at the outlet of the upstream stand (11a), a looper unit (15) comprising at least a looper roller (20) and a guide device arranged at the inlet to the downstream stand (11b), the looper roller (20) having at least a lowered position at the step before the leading end of the strip enters and a plurality of raised positions, while the strip is passing through, to form the desired loop, the looper roller (20), at least when it is in the lowered position before the strip enters, being made to rotate at a tangential speed at least equal to the speed at which the strip is fed between the stands.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: January 19, 1999
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventors: Estore Donini, Fausto Drigani
  • Patent number: 5687603
    Abstract: Side guides intended for rolling mills in the metallurgical industry characterized in that these side-guides are divided in a succession of segments which are placed in an alternation of a first segment (11) of a substantially rectangular shape and having a width allowing its insertion between two successive rollers (2) and of a second segment (12) intended to be placed above a corresponding roller (2) of which the lower end is of substantially semicircular shape.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: November 18, 1997
    Assignee: Sidmar, N.V.
    Inventor: Vincent Van Coppenolle
  • Patent number: 5568744
    Abstract: A method and an arrangement for manufacturing rolled wire sections and round steel sections in coils from carbon steels or high-grade steels. The arrangement includes a wire production line with a multiple-stand wire mill and a round steel production line with, for example, a multiple-stand round steel mill which branches from a common billet supply line including a billet furnace and a cooling bed, wherein the wire mill and the round steel mill are arranged next to each other. An aftertreatment unit following the production lines includes a coil forming station for round steel sections and for wire sections arranged following one of the two production lines, a transfer device for wire coils to the round steel production line, a coil forming device for wire sections arranged at the end of the wire mill, the coil forming device being followed by a transfer device for wire coils or round steel coils, and a coil conveying and cooling device arranged following one of the two production lines.
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: October 29, 1996
    Assignee: SMS Schloemann-Siemag AG
    Inventor: Johann Grotepass
  • Patent number: 5435165
    Abstract: A method to enter a metal slab (2) into a roll stand (10) and a rolling unit to enhance the entry of the slab into the roll gap (13) between the working cylinders (1, 1') of the rolling mill. At least one of the last rollers (45) of the table (3), located immediately upstream of the roll stand (10) in the direction of entry, is mounted for vertical movement with respect to the table (3) and is subject to a lifting load at least equal to the weight of the nose (22) of the slab (2) in such a manner that, at the end of its forward motion towards the roll stand, the said nose (22) is supported by the movable roller (45), which thus is applied perfectly against the lower surface (20) of the slab and is rotary-driven in the direction of entry so as to exert on the slab (2) a thrust load, which is added to the load exerted at least by the first driven roller ( 32) of the table (3) to enhance the introduction of the slab (2) into the roll gap (13).
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: July 25, 1995
    Assignee: Clecim
    Inventors: Michel Morel, Lucien Burnouf, Andre Ravenet
  • Patent number: 5220819
    Abstract: A mechanism for feeding strip material into the nip between a pair of strip mill rollers includes opposed guides for engaging and capturing the edges of the material being fed into the nip. Each guide has a side wall, a top plate and a bottom plate that together define a tapered channel. The wide end or throat of the channel initially receives the material, while the small end of the channel guides the material into the adjacent nip. The guides are movable toward and away from each other to accommodate strip materials of different widths. Each guide journals a series of vertically extending rollers of decreasing lengths upon which the associated side edge of the strip material sequentially rides as it moves toward the nip. The lengths of the rollers substantially exceed the expected thicknesses of the strip material so that the lower ends of the rollers wear at a faster rate then their upper ends.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: June 22, 1993
    Assignee: Production Experts, Inc.
    Inventors: William R. Scheib, William G. Sherwood, Paul R. Sutherin, Raj N. Varadarajulu
  • Patent number: 5195347
    Abstract: A guide device for shape rolling has upper and lower pairs of width-variable web guides arranged at the delivery of a shape mill. Support bases supporting the upper and lower pairs of web guides. Movable bases move the support bases horizontally on side frames whose ends are fixed to guide frames. Guide width adjusting devices individually adjust the distance between the movable bases; and guide height adjusting devices enable the side frames to ascend and descend. Preferably, upper and lower pairs of flange end guide rollers and flange-outer-surface guide rollers, which are adapted to roll while in contact with the end surfaces and the outer surfaces of the flanges, can move in the vertical and horizontal directions.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: March 23, 1993
    Assignee: Kawasaki Steel Corporation
    Inventors: Tsuneo Seto, Atsushi Hatanaka, Hironori Miura, Youji Fujimoto
  • Patent number: 5170653
    Abstract: Disclosed is a method of coiling steel bars, especially hexagonal bars, with a twist free coil in a continuous rolling mill equipped with pouring reels. Disclosed is the use of pinch rolls to prevent the twisting of the bar as it is being coiled.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: December 15, 1992
    Assignee: Bethlehem Steel Corporation
    Inventors: George R. Lastowski, John I. Crichton
  • Patent number: 5146781
    Abstract: A method of treating hot metal slabs (6) aims to reduce the width of the slab (6) produced by a continuous casting process to avoid the need for the prolific number of moulds otherwise required to produce slabs of various widths. In order to achieve this the hot metal slab (6) is presented, with its width dimension vertically oriented, to a pressing machine (24) having a vertically movable top platen (26) and a fixed bottom platen (28). The slab (6) is incrementally displaced, longitudinally, through the pressing machine and pressing forces are applied to its opposing edges by the platens, to reduce its width. Subsequently, the slab (6) is turned so that its width dimension is oriented horizontally and rolled between the horizontal rolls of a rolling mill (22). An apparatus for performing the method is disclosed.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: September 15, 1992
    Assignee: Davy McKee (Sheffield) Limited
    Inventors: Geoffrey Wilson, Timothy J. Bradshaw
  • Patent number: 5079937
    Abstract: An arrangement for cooling in a controlled manner a rolled wire from rolling temperatures. The arrangement includes a cooling unit arranged following a finishing stand, a coiling unit for the wire and a cooling and conveying system for the spread-out wire coils. A pivotable and/or displaceable coil placement unit is arranged between the coiling unit and the cooling and conveying system.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: January 14, 1992
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventor: Rolf Scholer
  • Patent number: 5035132
    Abstract: Rolled stock is turned and advanced by a devicce that includes two separate motors the two motors being provided, being provided for turning while the advancing is of the stock results from a speed differential between the motors as they drive the stock.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: July 30, 1991
    Assignee: Mannesmann AG
    Inventor: Josef Gerretz
  • Patent number: 5001915
    Abstract: A system for processing steel strips in a hot strip mill includes an apparatus and method for removing the oxide layer in the finishing mill process such that the final thickness of the oxide layer is much less than previously possible. In order to reduce the thickness of the oxide layer, the invention provides for the removal of oxide scales from the surface of the steel strips at a distance in front of the working rolls of the finishing mill that minimizes the time the strip is exposed to ambient conditions after it is descaled and before it is received between the pair of working rolls. By minimizing this exposure time, the thickness of the oxide layers in the finished strips is substantially reduced.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: March 26, 1991
    Assignee: David T. Blazevic
    Inventor: David T. Blazevic
  • Patent number: 4945746
    Abstract: An improved containment fence for a roller conveyor type runout table used with a hot strip mill includes a plurality of vertically extending posts mounted in fixed relation to and outboard of the conveyor rollers along each side of the runout table with the posts each terminating in a top end spaced above the conveying path defined by the rollers, and a plurality of fence plate assemblies each including an elongated generally rectangular plate and a pair of rigid mounting brackets on and extending outwardly from one surface of each elongated plate one adjacent each end thereof for mounting the plates on the upper end of the upwardly projecting posts and adjacent the ends of the rollers of the conveyor, each plate assembly having a length to extend past the ends of a plurality of adjacent rollers on the conveyor, and the posts and mounting brackets supporting the plates in overlapping relation along the length of the conveyor with a downstream end of each elongated plate extending inboard of the upstream end
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: August 7, 1990
    Assignee: National Steel Corporation
    Inventors: Christopher C. Jakimowicz, James H. Ramey