With Variation Of Bite Of Roller-couple During Deformation Patents (Class 72/240)
  • Patent number: 11612921
    Abstract: There is provided a rolling mill that includes a plurality of rolls, in which any one roll among respective rolls is adopted as a reference roll, including a load detection apparatus, detects a vertical roll load at a rolling support point position; a pressing apparatus pressing the roll chocks in the rolling direction; a driving apparatus moving the roll chocks in the rolling direction; and a position control unit which fixes a rolling direction position of roll chocks of the reference roll, and drives the driving apparatus to control positions in the rolling direction of the roll chocks of the rolls other than the reference roll.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: March 28, 2023
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Atsushi Ishii, Daisuke Kasai, Daisuke Nikkuni
  • Patent number: 11213871
    Abstract: A control device of the rolling mill line controls actuators of a downstream and an upstream roll stand. The control device determines control variables for the actuators of the upstream roll stand while taking into consideration a flatness change to be carried out and additionally taking into consideration a contour change to be carried out and controls the actuators of the upstream roll stand accordingly. The control device determines control variables for the actuators of the downstream roll stand while taking into consideration the contour change to be performed but without taking into consideration the flatness change to be performed and controls the actuators of the downstream roll stand accordingly. The control device outputs the control variables to the actuators of the downstream roll stand with a delay of a transport time, relative to the corresponding control variables for the actuators of the upstream roll stand.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: January 4, 2022
    Assignee: PRIMETALS TECHNOLOGIES GERMANY GMBH
    Inventor: Klaus Loehe
  • Patent number: 10399132
    Abstract: A process includes flexible rolling of a strip made of a metallic material, wherein a thickness profile with different sheet thicknesses along the length of the strip is produced such that successive regions of the flexibly rolled strip each correspond to a target thickness profile of a sheet metal blank to be cut out of same; determining a measured thickness profile of a plurality of successive regions of the strip; calculating a target position in the strip for a sheet metal blank to be cut out of the strip depending on the generated measured thickness profile of at least two successive regions of the strip; cutting the flexibly rolled strip by at least one cutting device along the target position for producing the sheet meal blank. A plant is further provided for producing a sheet metal blank.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: September 3, 2019
    Assignee: Muhr und Bender KG
    Inventors: Christoph Schneider, Harald Eichner, Joachim Ivo
  • Patent number: 9403239
    Abstract: Methods of manufacture include welding two or more elongate members together to define an elongate weldment, wherein the welding results in a weld region that is in tension and regions adjacent to the weld region that are in compression, and longitudinally stretching the elongate weldment. Tools and systems for manufacturing elongate weldments, as well as apparatuses, such as aircraft, that include elongate weldments, also are disclosed.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: August 2, 2016
    Assignee: The Boeing Company
    Inventors: Paul Stevenson Gregg, Kirk B. Kajita
  • Patent number: 8991231
    Abstract: A roll stand has two working rollers capable of gripping a strip to be rolled, two intermediate rollers, two bearing rollers, and at least one side bearing unit capable of laterally supporting the working rollers. At least one camber block for cambering the intermediate rollers is capable of vertical movement relative to the posts of the roll stand and of supporting the side bearing unit.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: March 31, 2015
    Assignee: PriMetals Technologies
    Inventors: Francis Charre, Yves Guillot, Bernard Rossigneux
  • Publication number: 20140331730
    Abstract: A rolling device for three-dimensional curved surface forming or thin sheet rolling of a sheet metal, comprising a forming roll (1), a supporting mechanism, an adjusting mechanism and a driving mechanism. The forming roll (1) comprises an upper forming roll (1a) and a lower forming roll (1b); the supporting mechanism is a multi-point supporting mechanism (2a) or an overall supporting mechanism (2b) for supporting the forming roll; the adjusting mechanism is a multi-point shape adjusting mechanism (3) and/or an overall displacing mechanism for adjusting the shape and/or relative height of the forming roll (1); and the driving mechanism applies a torque to one or two ends of the upper forming roll (1a) and/or the lower forming roll (1b). The present invention also provides a method for sheet rolling by using the rolling device. The rolling device and rolling method can achieve three-dimensional curved surface rolling or thin sheet rolling of a sheet metal simply, quickly and at a low cost.
    Type: Application
    Filed: November 15, 2012
    Publication date: November 13, 2014
    Applicant: JILIN UNIVERSITY
    Inventors: Mingzhe Li, Zhiwei Liu, Qigang Han, Zhongyi Cai, Renjun Li, Zhen Ssui, Wenzhi Fu, Chunguo Liu, Ningjia Qiu
  • Patent number: 8881569
    Abstract: A rolling mill stand for the production of rolled strip or sheet metal includes working rolls which are supported on respective supporting rolls or on intermediate rolls which are supported on supporting rolls. At least one of the rolls having a barrel contour which runs over the entire effective barrel length and can be described by a non-linear function. The barrel contour of this at least one roll having chamfers in at least one of the marginal regions of its longitudinal extent and the chamfers forming a corrected barrel contour in these marginal regions, so that inhomogeneities in the load distribution along the contact line of two adjacent rolls, and in particular in the region of the edges of the strip, are minimized.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: November 11, 2014
    Assignee: Siemens Vai Metals Technologies GmbH
    Inventors: Alois Seilinger, Markus Widder
  • Patent number: 8522586
    Abstract: The invention relates to a method for producing a sheet metal component. A hot or cold strip is electrolytically coated or coated in a smelting bath and the thus coated hot or cold strip is subjected to a flexible rolling process. During said process, sheet metal having various thicknesses of the flexibly rolled steel strips are produced due to various rolling pressures. Said invention is characterized in that in accordance with the thickness of the sheet metal after being rolled in a flexible manner or in accordance with the rolling pressure during flexible rolling, either the coating whilst being coated has various thicknesses, and in accordance with the rolling pressure with increasing rolling pressure that is expected, the thickness of the coating is thicker and/or the coating prior to or after the flexible rolling is subjected to a mechanical or chemical surface treatment for adjusting the desired emissivity or heat absorption capacity.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: September 3, 2013
    Assignee: Voestalpine Stahl GmbH
    Inventor: Josef Faderl
  • Publication number: 20130104617
    Abstract: An improved roll bending system is described for the work rolls and intermediate rolls in a six high mill. New bending blocks apply improved roll bending forces to the roll chocks, and additionally, are designed to move vertically and rotate, which provide important benefits to maintenance and enhance the rolling operation. Additionally, important related details to the mill operation and bending blocks provide operational improvements during roll changing.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 2, 2013
    Inventors: Remn-Min Guo, Alfred Armack, Paul DiNello, John Herbst, Jerry Martin, Wadaw Mielicki
  • Patent number: 8356504
    Abstract: The invention relates to rolled material comprising a front and an end. The rolled material is rolled in a roll gap of a roll stand to a first desired measurement, beginning at the front of the rolled material. When the rolled material is being rolled in the roll stand, it is continuously determined by a control computer, which locates the position of the rolled material which is currently in the roll gap. When the position of the rolled material, which is directly in the roll gap, corresponds to a predetermined first modification position of the rolled material, which is arranged between the front of the rolled material and the end of the rolled material, the roller of the rolled material ends at a first desired measurement such that a first step is introduced into the rolled material on the first modification point.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: January 22, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Edmund Koh, Dirk Krautwurst, Birger Schmidt
  • Publication number: 20120324973
    Abstract: A roll stand has two working rollers capable of gripping a strip to be rolled, two intermediate rollers, two bearing rollers, and at least one side bearing unit capable of laterally supporting the working rollers. At least one camber block for cambering the intermediate rollers is capable of vertical movement relative to the posts of the roll stand and of supporting the side bearing unit.
    Type: Application
    Filed: April 1, 2010
    Publication date: December 27, 2012
    Applicant: SIEMENS VAI METALS TECHNOLOGIES SAS
    Inventors: Francis Charre, Yves Guillot, Bernard Rossigneux
  • Patent number: 8096160
    Abstract: A method for increasing slab rolling yields and rolling mill efficiency by minimizing shearing and crop losses in the rolling of assembled slabs. An assembled structure for aluminium rolled products includes a core slab with a reduced cross-section in the thickness direction of the slab in at least one of the slab edges running parallel to the rolling direction. At least one second slab is assembled to the core slab. The edges of the slab may have a cut-out and/or a tapered shape. A method of reducing shearing and crop losses at the rolling of assembled slabs, by using a core slab with a reduced cross-section in the thickness direction of the slab in at least one of the slab edges running parallel to the rolling direction.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: January 17, 2012
    Assignee: SAPA Heat Transfer AB
    Inventor: Conny Åkesson
  • Publication number: 20110174042
    Abstract: A stator structure includes: a stator core (104) having a large number of concave slots (105) and a large number of convex magnetic poles (106) circumferentially alternately arranged; and magnet wires (101) of rectangular cross section in each of which an insulating coating (103) is formed on the outer surface of a metal wire (102), wherein each of the slots (105) is formed so that the distance (W2) between both the side surfaces (109, 109) of the slot (105) gradually decreases from the bottom (107) to a distal opening (108) of the slot (105), each of the magnet wires (101) is wound around the associated magnetic pole (106) and inserted in tiers in the associated slot (105), and the magnet wire (101) is placed in the slot (105) so that the width (W1) thereof continuously or stepwise decreases from the bottom (107) to the distal opening (108) of the slot (105).
    Type: Application
    Filed: March 14, 2011
    Publication date: July 21, 2011
    Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.
    Inventors: Hiroyuki KAMIBAYASHI, Yasunori Kashima, Takafumi Tanabe, Takeshi Ikeda, Yasushi Kawakami
  • Publication number: 20100300170
    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.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 2, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: David M. Bentoski, Theodore W. Foster
  • 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
  • Patent number: 7546755
    Abstract: Elongated structural components having regions of different thicknesses, especially for use in automobile bodies, are produced by flexible rolling metal strip so as to form along a length thereof rolled-strip segments of different wall thickness. The sheet bars are cut from the rolled strip and have regions of different wall thickness. Each sheet bar is reshaped in at least one hot-forming tool in at least one hot-forming state and the reshaped sheet bar is then rapidly cooled in the hot-forming tool of the last reshaping stage.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: June 16, 2009
    Assignee: Benteler Automobiltechnik GmbH
    Inventor: Wilhelm Arns
  • Publication number: 20090064750
    Abstract: The invention relates to a device for adapting working rolls, in particular of four-high stands, to a rolling line with at least one pair of wedges (1, 1?) in a region between parallel, spaced from each other, rolling mill stands (2, 2?), which are displaceable along a horizontal slideway relative to the stands (2, 2?) by toggle lever adjusting means. To this end, the wedges (1, 1?) of the wedge pair are connected with each other at a fixed distance from each other, and for their displacement an arrangement of two toggle levers (4, 5) is provided of which one lever (4) is supported on one wedge (1) with at least one articulated joint (6) and another lever (5) is supported on an opposite stand (2?) also with at least one articulated joint, and both levers (4, 5) are connected with each other by a longitudinally adjustable toggle joint (7).
    Type: Application
    Filed: October 12, 2005
    Publication date: March 12, 2009
    Inventors: Wolfgang Denker, Andreas Berendes
  • Publication number: 20090049882
    Abstract: Processes for continuous production of a thin metal strip, in particular a steel hot strip, directly from a metal melt and with a strip cast thickness of <10 mm by the roll-casting process. The cast metal strip is fed for in-line thickness reduction, and then to a storage device. To achieve a high-quality, hot-rolled metal strip with flatness tolerances comparable to those which can currently be achieved in the production of hot-rolled metal strip from continuous-cast thin slabs or slabs, at cast thicknesses of between 40 and 300 mm, in a continuous production process starting directly from metal melt. With the low strip cast thickness, a flatness measurement is performed on the moving metal strip, and the measurement results of this flatness measurement are used to influence the flatness of the metal strip in a targeted way.
    Type: Application
    Filed: September 20, 2005
    Publication date: February 26, 2009
    Inventors: Andreas Flick, Andreas Schweighofer, Markus Brummayer, Gerald Hohenbichler, Gerald Eckerstorfer
  • Patent number: 7320237
    Abstract: While a reference means having a positional relationship to the pass-line of a continuance mill determined in advance and caliber profile (area enclosed by the groove profile of a rolling roll) formed by a rolling roll at each stand are imaged within the same visual field and a position corresponding to the pass-line is calculated based on the region corresponding to the reference means within the taken image, the center position of the region corresponding to the caliber profile within the taken image is calculated and the misalignment amount of the caliber profile can be calculated based on the calculated center position and the calculated position corresponding to the pass-line. Accordingly, a misalignment amount can be measured accurately as long as images of the reference means and the caliber profile are taken within the same visual field.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: January 22, 2008
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Hiroshi Kubota, Youichi Suzuki
  • Patent number: 7185520
    Abstract: The invention relates to a method and a device for correcting the thickness of a metal strip during rolling comprising a roll stand with adjusting elements to regulate the thickness of the strip and at least one take-up coiler. The object to provide a method and a device to correct the thickness of a metal strip during rolling using a roll stand which ensures the production of rolled strip with a reduced thickness tolerance is solved according to method by the fact that an average strip thickness of a strip section is determined from at least one strip length measurement and the measurement of the dedicated rotation of the take-up coiler and the adjusting elements of the roll stand are controlled at least depending on the average strip thickness of the strip section. With the method according to the invention the adjusting elements can be controlled almost independently of the ambient conditions of the roll stand so that the thickness tolerances of the rolled strip can be effectively reduced.
    Type: Grant
    Filed: July 20, 2003
    Date of Patent: March 6, 2007
    Assignee: Aluminium Norf GmbH
    Inventors: Michael Pampel, Günter Pampel, Manfred Jeude
  • Patent number: 6938451
    Abstract: A hard metal or non-metal member can be formed or shaped to have varying amounts of curvature and tapering by passing the member through a forming channel defined by two sets of opposed, axially displaceable rollers which can be dynamically moved horizontally and vertically in a predetermined range. The rollers are controlled by a computer, a translator, and a electro-mechanical displacement system such as a servo motor. Using data input by a user or preprogrammed instructions containing displacement instruction in the computer, the computer can subsequently instruct servo motors, via a translator, to move the rollers in the available axial directions. The servo motors may include a mechanism for converting rotational movement into fine linear mechanical movement of the rollers. The timing and rate of movement, direction, and force of the roller can be controlled to form and shape the member into a specific contour of curves or tapering sides.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: September 6, 2005
    Inventor: Jon Elmaleh
  • Publication number: 20040031307
    Abstract: A hard metal or non-metal member can be formed or shaped to have varying amounts of curvature and tapering by passing the member through a forming channel defined by two sets of opposed, axially displaceable rollers which can be dynamically moved horizontally and vertically in a predetermined range. The rollers are controlled by a computer, a translator, and a electromechanical displacement system such as a servo motor. Using data input by a user or preprogrammed instructions containing displacement instruction in the computer, the computer can subsequently instruct servo motors, via a translator, to move the rollers in the available axial directions. The servo motors may include a mechanism for converting rotational movement into fine linear mechanical movement of the rollers. The timing and rate of movement, direction, and force of the roller can be controlled to form and shape the member into a specific contour of curves or tapering sides.
    Type: Application
    Filed: August 15, 2002
    Publication date: February 19, 2004
    Inventor: Jon Elmaleh
  • Patent number: 6662616
    Abstract: A method and a device for flexibly rolling a metal band by guiding the metal band through a roll gap formed between a first working roll and a second working roll, and by varying the size of the roll gap in such a way that band sections with a greater band thickness and band sections with a lesser band thickness are obtained over the length of the metal band. In the device and method, the time of contact between each point on the circumference of the first working roll and the metal band is shorter in duration than the time of contact between each point on the circumference of the second working roll and the metal band such that an asymmetric band thickness profile is obtained in a region of the band sections with a lesser band thickness.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: December 16, 2003
    Assignee: Muhr und Bender KG
    Inventors: Peter Böhlke, Alexander Ebert, Andreas Hauger, Reiner Kopp
  • Publication number: 20020023472
    Abstract: A method and a device for flexibly rolling a metal band by guiding the metal band through a roll gap formed between a first working roll and a second working roll, and by varying the size of the roll gap in such a way that band sections with a greater band thickness and band sections with a lesser band thickness are obtained over the length of the metal band. In the device and method, the time of contact between each point on the circumference of the first working roll and the metal band is shorter in duration than the time of contact between each point on the circumference of the second working roll and the metal band such that an asymmetric band thickness profile is obtained in a region of the band sections with a lesser band thickness.
    Type: Application
    Filed: August 22, 2001
    Publication date: February 28, 2002
    Inventors: Peter Bohlke, Alexander Ebert, Andreas Hauger, Reiner Kopp
  • Patent number: 6336349
    Abstract: A method for the flexible rolling of a metallic strip in which, during the rolling procedure, the metallic strip is lead through a roll gap which is formed between two working rolls, and during the rolling operation, the roll gap is deliberately changed in order to obtain different strip thicknesses over the length of the metallic strip. A good planeness of the metallic strip can be obtained, and particularly, also for relatively wide strips, in that, during each setting of the roll gap or directly afterward, the deflection curve bending line of the working roll is controlled depending on the setting of the roll gap for the achievement of planeness of the metallic strip.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: January 8, 2002
    Assignee: Muhr und Bender KG
    Inventors: Andreas Hauger, Rainer Kopp
  • Patent number: 6336350
    Abstract: A method for the flexible rolling of a metallic band wherein, during the rolling procedure, the metallic strip is lead through a roll gap which is formed between two working rolls and which is set so that, over the length of the metallic strip, strip sections are obtained with different strip thickness. In order to prevent temperature-related deviations in the thickness and length profiles of the metallic strip, a compensation of the temperature influence effecting the metallic strip is carried out during rolling in order to prevent deviations from the theoretical thickness and/or the theoretical length of the individual strip sections at a default temperature of the metallic strip.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: January 8, 2002
    Assignee: Muhr und Bender KG
    Inventor: Friedrich Klein
  • Patent number: 6250126
    Abstract: The invention intends to always maintain a distance between a hydrostatic pressure bearing and a roll even in a transient state before and after the start of rolling, thereby sufficiently and surely preventing damage of those components upon contact with each other, and to prevent a lowering of yield. In a plate rolling mill comprising upper and lower work rolls, and hydrostatic pressure bearings for supporting barrel portions of idler rolls in a non-contact manner with fluid pressure substantially along the horizontal direction, the idler rolls supporting the work rolls substantially along the horizontal direction, gap restraining rolls are provided to prevent gaps between the hydrostatic pressure bearings and the idler rolls from becoming lower than a predetermined value.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: June 26, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Kenichi Yasuda, Mitsuo Nihei, Yukio Hirama, Yoshio Takakura
  • Patent number: 6216518
    Abstract: A method of adjusting a roll position in a bar steel rolling mill includes using portions of a roll caliber, that are located at approximately symmetrical positions with respect to a rolling reduction direction, as sensing positions, and calculating the sum of, and the difference between, the areas located between a reference profile and an actually measured profile at the sensing positions.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: April 17, 2001
    Assignee: Kawasaki Steel Corporation
    Inventors: Tomoyasu Sakurai, Takao Ogawa
  • Patent number: 6170311
    Abstract: A device with a stepped adjustment for adapting the vertical position of the rolls of a roll stand to the rolling line, wherein the rolls are supported on both sides in chocks and arranged so as to be raisable and lowerable in roll housings, particularly in a four-high skin pass stand or sizing stand operated with low rolling force. The chocks of one of the rolls have on their sides facing the roll housings a toothed segment and complementary toothed rails are arranged in the roll housings opposite the toothed segments and are movable toward and away from the toothed segments.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: January 9, 2001
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventor: Dieter Daub
  • Patent number: 6094958
    Abstract: The housing of a metal-working machine is comprised of a pair of parallel, vertically oriented, laterally spaced, smooth-surfaced plates that define a work zone at the upper end of the housing. Components of the machine are conveniently mounted within the space between the housing plates, which plates provide square reference and guide surfaces therefor, and the machine may be of modular construction.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: August 1, 2000
    Inventor: Bruce R. Good
  • Patent number: 6073474
    Abstract: A work roll bending system for profile control of continuous metal strip during rolling which is especially useful for retrofitting an existing rolling mill absent such feature to provide it with roll bending capabilities. The advantage of the system is its compactness in the vertical direction which facilitates its positioning between housing posts of the rolling mill where space in the vertical direction is often limited. Bending wings for exerting bending forces to work roll chocks with use of hydraulic cylinder and piston assemblies extend from the chocks in an intermeshing manner to allow wings from top and bottom work roll chocks to occupy the same horizontal plane without interference during at least some roll gap settings. That bending wing arrangement also allows for elimination of a "layer" of hydraulic cylinder and piston assemblies which also reduces space requirements in the vertical direction.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: June 13, 2000
    Assignee: Danieli United, a divison of Danieli Corporation
    Inventor: Robert William Dittmar
  • Patent number: 6035686
    Abstract: A method and an installation for producing biconical wire, i.e., wire with repeating cylindrical and conical wire sections from a cylindrical starting material, in particular for producing helical compression springs inexpensively by using hot forming to form the conical wire sections. The installation has a heating unit (1) and a forming unit (2). The embodiment also includes a cooling unit (3) downstream from the heating unit (1), a cooling unit (4) downstream from the forming unit (2), a roll control (5), a re-rolling unit (6) downstream from the forming unit (2), another heating unit (7) for annealing or tempering, a cooling unit (8) downstream from the additional heating unit (7), an uncoiler (9), a roller straightening apparatus (10) and a coiler (11).
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: March 14, 2000
    Assignees: Muhr und Bender, Neturen Co., Ltd.
    Inventors: Thomas Muhr, Andreas Kleemann, Hartmut Salje, Tesukazu Fukuhara, Takao Yamazaki
  • Patent number: 6029490
    Abstract: A device for changing the vertical position of the vertical rolls in universal roll stands for rolling girders of different heights, wherein the vertical cross section of the housing of the bearing chock is constructed asymmetrically and the vertical distances of the planes of the two slideways of the bearing chock from the horizontal longitudinal center plane of the vertical roll are dimensioned differently. The increase of the distance between the roller table and the center of the vertical roll can also be achieved by shims which can be placed and fastened on horizontal guide surfaces of the bearing chocks of the vertical rolls of the universal roll stand.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: February 29, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Michael Minnerop, Hans-Jurgen Reismann, Hubert Muller
  • Patent number: 5975987
    Abstract: A method and apparatus for knurling a workpiece in which the knurl pattern has an oblique helix angle relative to the longitudinal axis of the cylindrical workpiece. Also disclosed is a method of molding a molded article with the knurled workpiece to impart the inverse of the knurl pattern onto the molded article, such a molded article, a method of forming a structured abrasive article with the molded article, and such an abrasive article.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: November 2, 1999
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy L. Hoopman, Stanley B. Collins, James A. Servatius
  • Patent number: 5904058
    Abstract: Camber of a travelling wide strip is provided by a pair of opposed rollers adapted to bear on opposite wide sides of such a strip. Mutually independent means are provided to provide deforming pressure at a selected end of said opposed rollers.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: May 18, 1999
    Inventor: Austen Barnes
  • Patent number: 5896771
    Abstract: A pair of roll support shafts which are supported by bearings provided at both ends of the roll support shafts, wherein, between the bearings, toothed drums are mounted on the roll support shafts or the circumference of the roll support shafts is provided with toothings. Outside of the bearings, roll disks can be mounted on the ends of the roll support shafts, wherein one of the toothed drums meshes with a drive pinion mounted on a parallel drive shaft and the other toothed drum meshes with a loosely mounted intermediate pinion, wherein the drive and the intermediate pinion also mesh with each other. The roll support shafts are each supported in a free end of a single-armed tumbler lever which is swingable about the longitudinal axis of the drive pinion or the intermediate pinion, wherein the tumbler levers are supported relative to the roll stand by means of adjustable and securable rigid or elastic support members and the free ends are supported relative to each other through elastic members.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: April 27, 1999
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Hubert Muller, Albert Hauck
  • Patent number: 5875672
    Abstract: A method and apparatus for manufacturing metallic support beams for windscreen wiper blade assemblies, which includes a supply of metallic strip feedstock in a cold condition, the feedstock being passed in a cold condition through a pair of opposed, spaced apart, cold forming rollers. A spacing between the cold forming rollers is cyclically varied during to cyclically vary a thickness reduction of the feedstock and provide a rolled strip with a cyclically varying thickness. The thickness of the rolled strip is varied in a single pass between the cold forming rollers and the feedstock is worked so that the thickness of the rolled strip varies cyclically along its length in a ratio of least 2:1. Support beams are produced from the rolled strip, each support beam having a thickness which varies along its length.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: March 2, 1999
    Inventors: Eugene Fourie, Mechiel Nicolaas Nieuwoudt, Johannes Hendrik Fehrsen
  • Patent number: 5855133
    Abstract: The present invention provides means for automatically adjusting rollforming equipment to accommodate a range of different gauges of material such as sheet metal being formed. One rollforming roller (34) on each rollforming head (4A) is mounted on an eccentric so that a force supplied in the direction of material feed through the tooling rollers (33,34) will increase the tooling gap therebetween. An automatic gauge adjustor includes applying a source of substantially constant pressure sufficient to achieve the rollforming action against rotation about the eccentric while allowing movement of the rollforming roller also about the eccentric so that the roll will move against the pressure being provided in the direction of the material feed to accommodate the gauge of material within the working range set.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: January 5, 1999
    Assignee: Hayes Corporation
    Inventor: Thomas C. Hayes
  • Patent number: 5855134
    Abstract: A wire roll stand with roll rings mounted in a cantilevered manner onto roll shafts, wherein the roll rings can be axially clamped through spacer rings against an end of the respective roll shaft. The roll shafts are adjustable by eccentric bushings mounted in a housing and the eccentric bushings as well as the roll shafts are sealed relative to walls of the housings. The housing wall through which the roll shafts extend is equipped with openings which take into consideration the adjusting range of the roll shafts, wherein the openings are fixedly lined with sealing rings having a U-shaped profile. The spacer rings have a U-shaped profile and are composed of at least two parts with separating surfaces thereof extending within the profile yokes, wherein the sides of the spacer rings rest on the sides of the sealing rings within the adjusting range.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: January 5, 1999
    Assignee: SMS Schloemann-Siemag AG
    Inventors: Friedhelm Womelsdorf, Gerhard Pithan, Rudiger Grimmel, Karl Keller
  • Patent number: 5799526
    Abstract: A process for the cold rolling of a metal strip between rollers of rolling stands arranged sequentially is provided, along with a plant for its implementation, wherein the process involves:analyzing, as a function of frequency, a signal from an inter-stand tension measurement sensor corresponding to a level of tension of the metal strip to determine periodic variations in the signal having frequencies corresponding to a speed of rotation of the pair of rollers in a downstream rolling stand and proportional to out-of-roundness defects present in the rollers of the downstream rolling stand; andcompensating for the out-of-roundness defects in the rollers in the downstream rolling stand by adjusting the clamping setting of the rollers in the downstream rolling stand in accordance with a compensation signal, produced by the means for compensating, that is proportional to the periodic variations.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: September 1, 1998
    Assignee: Clecim
    Inventors: Regis Mieze, Gerard Robert, Daniel Piquet, Christophe Silvy Leligois, Michel Abikaram
  • Patent number: 5782177
    Abstract: A roller arrangement has a magnetic circuit that includes two rollers. The magnetic circuit consists of a cylindrical magnetic core, several poles axially distributed on the magnetic core, a cylindrical exciter and control windings arranged between these poles, a magnetic shell that encloses the whole circumference of one roller and is made of two parts separated by a ring-shaped secondary air gap, and a continuous magnetic shell in the axial direction arranged at the outer circumference of the other roller. When used to process webs of material in the textile, paper, plastic and metallurgical industries, this electromagnetic roller arrangement achieves high quality standards with a high productivity.
    Type: Grant
    Filed: October 20, 1996
    Date of Patent: July 21, 1998
    Assignee: EMS Elektromagnetische Systeme GmbH
    Inventor: Hans-Jochen Karl Max Rindfleisch
  • Patent number: 5755131
    Abstract: The invention is a method of and apparatus for removing camber from MULT strips by passing the MULT strip through a rolling mill having rolls with contacting surfaces vertically adjustable and positioned to reduce the thickness of the MULT strip from its short edge in reduced amounts thereacross to the opposite edge, so as to eliminate or reduce camber in the MULT strip prior to passing the strip through a roll-forming and punching line.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: May 26, 1998
    Assignee: The Bradbury Company, Inc.
    Inventor: Karl E. Voth
  • Patent number: 5673603
    Abstract: A device for cutting to shape advancing material webs, in particular made of fibrous materials, comprises a rotatingly driven shape cutting roller and a rotatingly driven counter cutting roller. The shape cutting roller has a shape cutting edge and the counter cutting roller a smooth cylinder surface. Both rollers are mounted in a machine frame by means of pivot bearings, and the distance between the axes of the rollers is adjustable. The rollers are rotatably mounted in separate, first and second machine frame parts which, for their part, are supported on a common machine base. One of these machine frame parts is held on an adjustable wedge-shaped guide means for adjusting the distance between the axes of the rollers. Each machine frame part is adapted to be secured separately on the machine base.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: October 7, 1997
    Inventor: Wilhelm Aichele
  • Patent number: 5556273
    Abstract: A combustion system for use in the steckel mill provides for the controlled mixing of combustible fluids to each furnace incorporated in the steckel mill while also harnessing at least a portion of the heat developed during the operation of the mill to increase the overall operation efficiency of the steckel mill. The invention also contemplates enhancing the manner in which combustion products are drawn from the furnaces which also aids in recovering heat developed during the operation of the steckel mill as well as improving the operation of the overall combustion system. These features are obtained by providing a supply system for the air or other combustible gas delivered to each of the steckel mill coil furnaces and to direct at least a portion of the flow of this combustion gas through at least one recuperator that is in-line with an exhaust duct associated with the steckel mill.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: September 17, 1996
    Assignee: Tuscaloosa Steel Corporation
    Inventors: William J. Mangham, Charles D. McPherson, Donald N. Mohr
  • Patent number: 5546782
    Abstract: Machine to sharpen bars to a point, especially bars to be drawn, which comprises at least one sharpening assembly and at least one assembly for displacement of the bar in relation to the sharpening assembly, the sharpening assembly (31) consisting of two counterpart rolls (11) each of which contains on the plane of positioning of the bar a groove (24) including at least two sections of reduction, means (14-15) being comprised for the circumferential positioning of the rolls (11) at the desired section of reduction, there also being included at least one rolling assembly (27a) upstream of the sharpening assembly (31) and at least one rolling assembly (27b) downstream of the sharpening assembly (31), such rolling assemblies (27) operating on the bar on a plane substantially at a right angle to the plane of reduction.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: August 20, 1996
    Assignee: Danieli & C. Officine Meccaniche SpA
    Inventor: Bruno Di Giusto
  • Patent number: 5437089
    Abstract: A method for continuous production of hot-rolled strips is used at metal works and involves continuously casting a thin slab which is stored and rolled into a strip in the form of individual portions in several runs with return into the storage zone and with subsequent cooling, cutting, and coiling. The slab and the returned portion are stored simultaneously by combined coiling into an intermediate coil which is moved along the storage zone during coiling and during uncoiling of the portion of the slab and strip being rolled.An apparatus for carrying out the method has roller-hearth furnace, a storage in the form of a carriage provided outside the roller-hearth furnace for movement therealong, and a means for forming an intermediate coil from the slab and from the returned portion of the strip. The means for forming is installed on the carriage in the furnace so that the intermediate coil can move over rollers of the furnace during coiling and uncoiling.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: August 1, 1995
    Assignee: Magnitogorsky Metallurgichesky Kombinat Imeni V.I. Lenina
    Inventors: Viktor M. Salganik, Aanatoly I. Starkov, Igor G. Gun, Alexandr V. Povarich, Leonid B. Idelchik
  • Patent number: 5404738
    Abstract: Continuous rolling is conducted by interposing loopers respectively between a plurality of successive stands and connecting a rear end of a preceding bar to a top end of a next bar. Roll gaps of the respective stands are each controlled by thickness control units. Interstand mass flow variations are each controlled by mass flow control units. Looper heights are controlled by looper height control units. Further, interstand tensions are controlled by looper tension control units. If no looper is provided, the interstand tensions are controlled by looperless control units. A flying thickness change control unit tracks a connecting point. The flying thickness change control unit switches over looper tension control and looperless control and changes a reference tension and a reference looper angle so that tensile and flexural forces are not applied to this connecting point.
    Type: Grant
    Filed: June 30, 1993
    Date of Patent: April 11, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Kunio Sekiguchi
  • Patent number: 5245853
    Abstract: When deforming an elongate workpiece, as by forging, rolling, or the like, it is necessary to know the exact position of the workpiece along its length with respect to the deforming device. To this end, one end of the workpiece is secured to a carriage in abutting relation with a stop member and the carriage is moved in the direction away from the deforming device. The position of the stop member with respect to the deforming device is continuously detected thus giving an indication of the position of the workpiece with respect to the deforming device.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: September 21, 1993
    Assignee: Davy McKee (Sheffield) Limited
    Inventor: Dennis Stubbs
  • Patent number: 5239851
    Abstract: A five-high rolling mill is disclosed which includes an upper work roll backed by an intermediate roll and a backup roll and a lower work roll backed up by a single backup roll. Control benders are provided on each of the intermediate roll and the upper and lower work rolls. In order to optimize the control of the rolling operation for skinpass rolling and the like, the control benders for the upper work roll and the intermediate backup roll are controlled so as to effect a control of the crown sheet over the entire width of the material being rolled, while the control bender for the lower work roll controls the sheet crown of the rolled material at the lateral side end portions, resulting in a composite control substantially improving the sheet quality and preventing edge wrinkles in the material being rolled. In the disclosure embodiments, the intermediate roll has a larger drum length than a predetermined maximum sheet width of rolled material to be rolled by the work roll.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: August 31, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Yoshio Takakura, Toshiyuki Kajiwara
  • Patent number: RE42417
    Abstract: The present invention provides means for automatically adjusting rollforming equipment to accommodate a range of different gauges of material such as sheet metal being formed. One rollforming roller (34) on each rollforming head (4A) is mounted on an eccentric so that a force supplied in the direction of material feed through the tooling rollers (33,34) will increase the tooling gap therebetween. An automatic gauge adjustor includes applying a source of substantially constant pressure sufficient to achieve the rollforming action against rotation about the eccentric while allowing movement of the rollforming roller also about the eccentric so that the roll will move against the pressure being provided in the direction of the material feed to accommodate the gauge of material within the working range set.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: June 7, 2011
    Assignee: Hayes International
    Inventor: Thomas C. Hayes