Sensing Force Patents (Class 72/10.4)
  • Patent number: 12083569
    Abstract: A meandering control device and hot rolling equipment suppress a meandering amount of a hot-rolled steel strip. A roll opening degree difference between an operation side and a driving side in an i-th rolling machine computed in a leveling control computation step (step S3) in the meandering control method, satisfies the roll opening degree difference between the operation side and the driving side in the i-th rolling machine (Fi) by Expressions (1), (2), and (3) in a control section j, in a case where the control section j is set when a tail end portion (Sa) of a traveling hot-rolled steel strip (10) is present between a j-th (j?i?1) rolling machine (Fj) and a (j+1)th rolling machine (Fj+1) counting from a rolling machine (F1) installed on a most upstream side.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: September 10, 2024
    Assignee: JFE Steel Corporation
    Inventors: Tatsuhiro Sue, Yukio Takashima, Hiroto Goto, Hideto Yamaguchi, Shohei Nishi
  • Patent number: 12021182
    Abstract: The present invention relates to a battery manufacturing device including: a fixed roller that moves an electrode where an active material is applied; a roller that rolls the electrode; and a stopper that is disposed between the fixed roller and the roller, and when the electrode is disconnected, moves the disconnected electrode.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: June 25, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Ki Hoon Paeng, Hyung Seok Han, Hyungkyun Yu, Jaewon Moon, Sang Myeon Lee
  • Patent number: 11865598
    Abstract: A method for manufacturing flexible rolling of metal strips, in which a metal strip with pre-definable material thickness is guided through a mill stand by at least two operating steps, which includes several rolls, the metallic strip is during the rolling operation set to lead through a roll gap, where a curve bending line is steered to achieve a defined profile.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: January 9, 2024
    Assignee: Outokumpu Oyj
    Inventors: Thorsten Piniek, Andreas Zeidler, Stefan Schuberth
  • Patent number: 11596989
    Abstract: In a method for setting bending of at least one straightening roller in a roller straightening machine, the straightening roller is supported by a plurality of supporting roller devices arranged beside one another in the axial direction, wherein each supporting roller device can be adjusted by an actuating device such that stresses are produced in the straightening roller. To control the actuating device, a control system is provided, by which the adjustment of the supporting roller device can be set manually. Limiting values (vMA, vMI) with respect to the stresses produced in the straightening roller are stored in the control system. In the event of adjustment of one of the supporting roller devices, maxima (MA) and minima (MI) of the stresses produced in the straightening roller are calculated and it is checked whether the maxima (MA) and minima (MI) lie within the limiting values (vMA, vMI).
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: March 7, 2023
    Assignee: SCHULER PRESSEN GMBH
    Inventors: Alexander Seitz, Jan-Peter Grosse
  • Patent number: 11040171
    Abstract: System for curving an elongated medical device including a curving apparatus, and a curve database corresponding to at least one curve shape. The curving apparatus is configured to impart a permanent curve according to the curve shape on a distal portion of an elongated medical device that is greater than that on a proximal portion of the elongated medical device while maintaining sterility of the elongated medical device.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: June 22, 2021
    Assignee: Armour Technologies, Inc.
    Inventors: Andrew W. Armour, William Gallo, Karen L Haberland, Cynthia L Waldie, Clayton W Waldie
  • Patent number: 10906336
    Abstract: An upstream drive roller transports an elongate medium. An upstream tension sensor detects tension of the medium. A downstream drive roller transports the medium. A downstream tension sensor detects tension of the medium in a position between the upstream and downstream drive rollers. A control unit controls transportation of the medium by operating the upstream drive roller based on a first difference which is a difference between a first detection value and a target value, operating the downstream drive roller based on a second difference which is a difference between a second detection value and a target value, and when a specific condition is satisfied, further operating the downstream driver roller with an adjustment value, which is based on the first difference, added to the second difference.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: February 2, 2021
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Shoji Kakimoto, Osamu Morizono, Katsuaki Takeuchi
  • Patent number: 10773285
    Abstract: A straightening device for straightening cables includes two rows of rollers, an adjusting device for manually adjusting a distance between the rows of rollers, a measuring device for recording the distance between the rows of rollers, and an indicator device with which deviations of the actual value of the distance between the rows of rollers, determined by the measuring device, from a nominal value is visually indicated. The indicator device has two optical error indicating elements for indicating too high and/or too low an actual value compared with the nominal value of the distance, as well as an optical ‘correct’ indicating element for indicating that the actual value of the distance corresponds with the nominal value.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: September 15, 2020
    Assignee: KOMAX HOLDING AG
    Inventor: Stefan Viviroli
  • Patent number: 10668514
    Abstract: A plate width control device capable of improving the precision of the width of a material to be rolled is provided. In a rolling system, a plate width control device includes an arithmetic unit calculating an estimated value of a deviation amount of the width of the material to be rolled in the vertical rolling mill, and calculating an estimated value of an expansion amount of the width of the material to be rolled when a head end of the material to be rolled is caught in the horizontal rolling mill, and a control unit controlling a gap amount of the vertical rolling mill such that the deviation amount of the width of the material to be rolled is eliminated, and compensating for the gap amount of the vertical rolling mill when the head end of the material to be rolled is caught in the horizontal rolling mill.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: June 2, 2020
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Minoru Tachibana
  • Patent number: 10527353
    Abstract: A workpiece transfer apparatus for a furnace includes a carrier having access to a furnace and carrying a workpiece placed thereon, a controller for controlling movement of the carrier, the controller for determining an amount of deformation of the carrier by heat of the furnace, and the controller for determining an adjustment to the attitude of the carrier on the basis of the amount of deformation of the carrier, wherein when handing over the workpiece for a next process tool, the carrier is moved into an adjusted attitude.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: January 7, 2020
    Assignee: TOYODA IRON WORKS CO., LTD.
    Inventors: Yoshinori Ooyama, Kentaroh Uehara
  • Patent number: 9156070
    Abstract: Cold rolled material manufacturing equipment comprises: an unwinding device for unwinding a hot rolled coil after acid pickling; joining means, disposed on the exit side of the unwinding device, for joining the tail end of a preceding coil to the leading end of a succeeding coil unwound from the unwinding device; a rolling mill for continuously rolling the coils in one direction; a strip storage device, disposed between the joining means and the rolling mill, for storing a strip to perform continuous rolling during the joining; a strip cutting device for cutting the strip to a desired length; a winding device for winding the rolled coil; transport means for transporting the coil to the unwinding device so that the coil is rolled a plurality of times; and a rolling speed control device for controlling a rolling speed during the joining to a lower speed than a steady rolling speed.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: October 13, 2015
    Assignee: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Shinichi Kaga, Mitsuru Onose, Noriaki Tominaga, Takehiko Saito, Yasutsugu Yoshimura
  • Patent number: 9092576
    Abstract: Validation and determination of business application program content quality destined for loading on a target production computing environment is automated by receiving an application program into a controlled production computing environment, and, during a dry run test in the production computing environment, logging changes to content from an initial state as loaded by the application program; applying a business rule to the content during data loading to validate against business objects; capturing validation errors produced by the validation and structural change commands to the content into a log file; and automatically rolling back changes made to the content during the dry run test to the initial state thereby avoiding committing content changes to the production computing environment.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: July 28, 2015
    Assignee: International Business Machines Corporation
    Inventors: Sarmistha Samantaray, Sampathkumar Sriramadhesikan
  • Patent number: 8973419
    Abstract: The present invention discovers that a rolling direction force occurs even with conventional adjustment by the kiss roll state, pinpoints that the rolling direction force does not affect the roll thrust force, and thereby enables more precise initial roll gap position adjustment of a rolling mill (rolling zero adjustment). That is, this is based on the fact that high precision rolling zero adjustment becomes possible without being affected by any thrust force acting between rolls if performing differential asymmetrical roll gap zero point adjustment of the work side and the drive side so that the difference of the rolling direction forces acting on the roll chocks of the work side and the drive side of the work roll at the work side and the drive side (in practice, within ±5% of the sum of the rolling direction forces at the work side and the drive side).
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: March 10, 2015
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Daisuke Kasai, Atsushi Ishii, Shigeru Ogawa
  • Patent number: 8726708
    Abstract: A roller hemming device capable of correcting a positional error between a robot manipulator and a workpiece, and carrying out a pre-hemming and/or hemming process with appropriate pressing force. The roller hemming device has a position detecting part adapted to detect a current position of a roller attached to a front end of the robot manipulator; a force sensor arranged between a wrist section of the robot manipulator and the roller; and a controller adapted to control the position of the roller by using an output of the position detecting part and an output of the force sensor, so that pressing force applied to a mold by the roller is a predetermined value.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: May 20, 2014
    Assignee: Fanuc Corporation
    Inventors: Takashi Sato, Ko Gika
  • Patent number: 8616034
    Abstract: The invention relates to a method for controlling a side guide of a metal strip (1), in particular in the inlet or outlet of roll stands or driving apparatuses, wherein the side guide comprises a guide (2, 4) disposed laterally to the metal strip (1) on both sides of the metal strip (1), and the guides (2, 4) can be displaced independently of each other. One of the guides (2) is thereby driven by means of position control, and a second of the guides (4) is driven by means of force control, wherein forces of the metal strip (1) acting on the first guide (2) and the second guide (4) are measured. The target force for the second, force-controlled guide (4) is thereby prescribed as a function of the measured force on the first, position-controlled guide (2), wherein as the force on the first, position-controlled guide (2) increases, the target force for the second, force-controlled guide (4) is reduced.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: December 31, 2013
    Assignee: SMS Siemag Aktiengesellschaft
    Inventor: Matthias Tuschhoff
  • Patent number: 8578748
    Abstract: An apparatus comprises a platform, a stylus, and a heating system. The platform is capable of holding a sheet of material. The stylus is capable of impinging the sheet of the material to incrementally form a shape for a part. The heating system is capable of heating at least a portion of the sheet of material in a location on the sheet of material prior to the stylus impinging the location.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: November 12, 2013
    Assignee: The Boeing Company
    Inventors: Christopher S. Huskamp, Keith A. Young, James B. Castle
  • Patent number: 8459074
    Abstract: A strip has a strip head and a strip leg. It is rolled, beginning at the strip head, in a roll stand of a rolling device between an upper and a lower roller arrangement of the roll stand. It is monitored whether the strip foot reaches a switching point located, viewed in the rolling direction, in front of the roll stand. From the time the strip leg reaches the switching point, the roller arrangements are subjected to a bending force expanding the roller arrangements by means of an adjusting device, the force being at least as high as a minimal force. The minimal force is at least as high as a balancing force of the upper roller arrangement. The minimal force is determined as a function of the parameters of the strip and/or the operating parameters of the rolling device.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: June 11, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Hofer, Markus Martini
  • Patent number: 8429943
    Abstract: When rolling hot-rolled strips, different draughts per pass might occur during the rolling operation over the length of the roll gap, due to changes in the hardness of the rolling stock, to the roll gap itself or to the geometry of the incoming rolling stock. These different draughts per pass lead to lateral deviations and shifts of the rolling stock in the roll stand and to a lateral bending of the outgoing hot-rolled strip. In order to avoid these defects by intentionally influencing the geometry of the rough-rolled strip, it is proposed to interconnect in at least one roughing-down stand a dynamic positioning in the roughing-down stock (1) with fast and powerful lateral guides (8,9) arranged before and after the roughing-down stand (1), by corresponding regulation operations, in such a way that a grainy or tapering bloom (4) is shaped into a straight and taper-free roughed-down strip (5) in one or more passes, in continuous or reciprocating operation.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: April 30, 2013
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Olaf Norman Jepsen, Heinz-Adolf Müller, Joachim Immekus
  • Patent number: 8408032
    Abstract: A regulation device (7) for a rolling stand (2) has a force regulator (8) and a position regulator (9) mounted underneath the force regulator. During operation of the regulation device, a rolling force target value (F*) and a rolling force actual value (F) are supplied to the force regulator (8). A regulating distance correcting value (ds1*) is determined by the force regulator (8) from the rolling force target value (F*) and the rolling force actual value (F). The regulating distance correcting value (ds1*), an excentricity compensation value (ds2*), and a regulating distance actual value (s) of a regulating element (6) are supplied to the position regulator (9). A correcting quantity (dq) is determined by the position regulator (9) from the values (ds1*, ds2*, s) supplied thereto and is delivered to the regulating element (6). The regulating distance of the regulating element (6) is changed according to the correcting quantity (dq).
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: April 2, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hans-Joachim Felkl, Dietrich Wohld
  • Patent number: 8365563
    Abstract: A method for flattening steel strip by cold rolling wherein the strip is passed through at least two cold rolling mill stands each having work rolls. A first mill stand has work rolls having local rigidity K significantly different from a second milled stand. The local rigidity K is calculated in Kgf/mm/mm in accordance with an equation. A six high mill comprises a pair of driven backup rolls disposed on the entry side, a pair of horizontal support rolls disposed on the exit side, and a pair of small diameter work rolls having an entry side face and an exit side face. The work rolls are disposed between the backup rolls and the support rolls, wherein during operation the entry side face of the work rolls engages the backup rolls and the exit side face of the work rolls engages the support rolls.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: February 5, 2013
    Assignee: Quad Engineering, Inc.
    Inventor: Yuli Liu
  • Publication number: 20130000371
    Abstract: The present invention discovers that a rolling direction force occurs even with conventional adjustment by the kiss roll state, pinpoints that the rolling direction force does not affect the roll thrust force, and thereby enables more precise initial roll gap position adjustment of a rolling mill (rolling zero adjustment). That is, this is based on the fact that high precision rolling zero adjustment becomes possible without being affected by any thrust force acting between rolls if performing differential asymmetrical roll gap zero point adjustment of the work side and the drive side so that the difference of the rolling direction forces acting on the roll chocks of the work side and the drive side of the work roll at the work side and the drive side (in practice, within ±5% of the sum of the rolling direction forces at the work side and the drive side).
    Type: Application
    Filed: April 11, 2011
    Publication date: January 3, 2013
    Inventors: Daisuke Kasai, Atsushi Ishii, Shigeru Ogawa
  • Patent number: 8335591
    Abstract: A robot apparatus has a multi-link structure including a plurality of links and joints serving as link movable sections, and in which at least some of the links are driven by combination of position control and force control. The apparatus includes: position controller performing position control on the links, which are driven by position control and force control; position controller with force constraint placing the force control before the position control so as not to cause a magnitude of an external force to exceed a set value; force controller performing the force control on the links; and integrated force/position controller controlling driving of the joints by switching the position controller, the position controller with force constraint, and the force controller, and unifying the position control and the force control.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: December 18, 2012
    Assignee: Sony Corporation
    Inventor: Taro Takahashi
  • Patent number: 8327918
    Abstract: A method of fabricating a steel strip (1) including a) providing a functional relationship in a machine controller (8) between a slab casting speed (v) or the mass flow as a product of casting speed and strip thickness or as a product of strip speed and strip thickness and the strip temperature (t) downstream of the last rolling stand (7) for a different number (n) of active rolling stands (7) and different final thicknesses, b) determining or specifying the casting speed (v) or the mass flow (v×H) and feeding the determined value into the machine controller (8), and c) determining the optimum number of active rolling stands (7) and the final thicknesses and thickness reductions which can be rolled with them in the rolling train using the functional profiles.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: December 11, 2012
    Assignee: SMS Seimag AG
    Inventors: Juergen Seidel, Ernst Windhaus, Markus Reifferscheid, Juergen Mueller
  • Patent number: 8307678
    Abstract: A gauge control apparatus reduces deviation of an actual plate thickness from a target plate thickness on the delivery side of a rolling mill, in all speed ranges, and produces good products by controlling plate thickness considering changes in the oil film thickness of oil film bearings of backup rolls and the deformation resistance of a rolled material with respect to rolling speeds. The gauge control apparatus computes an oil film thickness compensation value to compensate for increase and decrease of the gap resulting from a change in thickness of the oil film bearing attributable to rolling speeds, an acceleration compensation value to compensate for increase and decrease of plate thickness on the delivery side of the rolling mill resulting from a change in deformation resistance of the rolled material attributable to rolling speeds, and deviation of the predicted plate thickness from the target plate thickness, in consideration of the computed compensation values.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: November 13, 2012
    Assignee: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventor: Minoru Tachibana
  • Patent number: 8302445
    Abstract: The invention relates to a roll stand and a method for rolling a rolled strip. The roll stand (100) comprises at least one roller housing on the drive side (AS) and one roller housing on the control side (BS) of the roll stand. It also comprises bending devices which are each firmly connected to spars (2) of the roll stands for treating and bending an upper and/or lower work roller of the roll stand (100) relative to the roller housings. The bending devices and thus the work rollers are controlled via a control device. To be able to control or regulate the bending devices and/or work rollers more precisely, and thus to improve the quality of the rolled strip after rolling, it is suggested according to the invention that a bending force strain gauge be placed appropriately for direct measurement of the actual bending force affecting the work rollers (7, 8) via the bending devices (11).
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: November 6, 2012
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Hartmut Pawelski, Hans-Peter Richter, Ludwig Weingarten
  • Patent number: 8302440
    Abstract: A thickness control apparatus of a reversing rolling mill has an entry thickness gauge that measures the thickness of the material to be rolled, and entry material speed detector that detects the speed of the material to be rolled. Measured thickness measured by the entry thickness gauge is tracked on the basis of the speed of the material to be rolled detected by the entry material speed detector. A mill delivery thickness calculator calculates thickness on the delivery side of the reversing rolling mill on the basis of the thickness on the entry side and the roll gap detected.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: November 6, 2012
    Assignee: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventors: Tomoyuki Tezuka, Masashi Tsugeno
  • Patent number: 7967594
    Abstract: Even when a cell electrode plate with broader width is press formed to enhance bulk density of electrode active material, it is made possible to positively and reliably provide a high-quality cell electrode plate with good productivity. From upstream to downstream in a travel direction of a cell electrode plate including a core member with electrode active material applied thereon, an uncoiler, a tension applicator, a four-high mill type roll press device, a thickness detector, a tension applicator and a coiler are arranged in the order named.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: June 28, 2011
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Nobuhiro Tazoe, Hisashi Honjou, Akihiro Nomura
  • Patent number: 7854155
    Abstract: A method for improving the running-out of a metal rolled strip (1), the rolled trailing strip end (1a) of which exits out of a respectively last roll stand (2) of a multistand rolling mill (3) at a rolling speed, wherein during rolling between two consecutive roll stands (F1, F2, F3 . . . Fn) the strip tension (a) is adjusted to stabilize the strip position, provides that shortly before the rolled trailing strip end (1a) exits the developing rolling force differences are measured separately for each roll stand (F1, F2, F3 . . . Fn), that from this the pivot value (16) and the pivot direction are derived for forming a corrective value for the adjustment of the rolls (10, 11) and that the adjustment is corrected.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: December 21, 2010
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Peter Sudau, Olaf Norman Jepsen
  • Patent number: 7854154
    Abstract: The invention relates to a method for controlling a rolling process, in which a metal strip is rolled flat by use of at least one roller. It is known from the prior art that the relative position of a neutral point represents a measure of the instantaneous stability of a rolling process. However, traditional methods for calculating the position of the neutral point do not accurately represent the actual properties of metal and therefore have only limited usefulness for predicting the stability of a rolling process. In order to allow better control of a rolling process for rolling a metal strip with regard to the actual behavior of the metal strip, the invention proposes a new method for calculating the relative position of the neutral point, in which in particular the flat yield stress ke and the hydrostatic pressure pNH at the neutral point are incorporated.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: December 21, 2010
    Assignee: SMS Siemag Aktiengesellschaft
    Inventor: Hartmut Pawelski
  • Patent number: 7779660
    Abstract: The invention relates to a method for deep rolling the passes or radii on the transitions between journal and cheeks or flanges of crankshafts by means of a deep rolling device (1) of a deep rolling machine, said deep rolling device having a lazy tongs-type design. The deep rolling device (1) has two tongs arms (2, 3) that are articulated to each other via a pivot joint (24). The corresponding outer ends (4, 5, 9, 10) of the tongs arms (2, 3) are provided with a deep rolling tool (6) or a force generator (11) for generating the deep rolling force. A measuring tape (18) and a sensor (19) which are provided on the pivot joint (24) are used to measure the impression depth of the deep rolling rollers (12) under the effect of the deep rolling force. A measuring device (22) mounted on the exterior (21) of a tongs arm (2) is used to measure the degree by which the tongs arm (2) bends under the effect of the deep rolling force.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: August 24, 2010
    Assignee: Hegenscheidt-MFD GmbH & Co. KG
    Inventors: Ralf Freitag, Roland Heffe, Alfred Heimann, Theo Nijssen, Frank Risters, Juergen Winnertz
  • Patent number: 7775079
    Abstract: A rolling method and a rolling apparatus for flat rolled metal materials stably produce flat-rolled metal having no or extremely little camber. The rolling mill having work rolls with split backup rolls supporting at least one work roll is provided with at least one pair of pinch rolls. The pinch rolls apply tension to the rolled material. The difference between the rolling direction force acting on the pinch rolls at the right and left sides is calculated. Optionally, the rolling direction force acting on the work rolls at the right and left sides is also calculated. The left-right difference of the roll gap of the work rolls is controlled as a result of the calculated difference.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: August 17, 2010
    Assignee: Nippon Steel Corporation
    Inventors: Shigeru Ogawa, Kenji Yamada, Toshiyuki Shiraishi, Yasuhiro Higashida
  • Patent number: 7707865
    Abstract: A flaw detection apparatus and flaw detection method for automatically detecting the occurrence of a flaw in a mother tube manufactured by rolling a hollow shell using a mandrel mill are provided. A flaw detection apparatus (100) according to the present invention includes a wall thickness gauge (1) which is installed on the exit side of a mandrel mill (M) and which measures the tube wall thickness in each of the reducing directions of a hollow shell (P) in the #1-#5 stands of the mandrel mill, rolling load measuring devices (2) which measure the rolling load in the #1-#5 stands, and a decision unit (3) which determines whether there are flaws in the mother tube based on the measured value of the tube wall thickness in each of the reducing directions of the hollow shell (P) and the measured value of the rolling load in each stand.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: May 4, 2010
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventor: Kenichi Sasaki
  • Publication number: 20100050721
    Abstract: A thickness control apparatus of a reversing rolling mill has an entry thickness gauge that measures the thickness of the material to be rolled, and entry material speed detector that is detects the speed of the material to be rolled. Measured thickness measured by the entry thickness gauge is tracked on the basis of the speed of the material to be rolled detected by the entry material speed detector. A mill delivery thickness calculator calculates thickness on the delivery side of the reversing rolling mill on the basis of the thickness on the entry side and the roll gap detected.
    Type: Application
    Filed: April 12, 2007
    Publication date: March 4, 2010
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Tomoyuki Tezuka, Masashi Tsugeno
  • Patent number: 7584636
    Abstract: A method and an apparatus for a metal spinning operation capable of spinning a product having a non-circular cross section normal to an axis of rotation such as a polygonal/elliptic one. The actuators of a forming roller (5) are driven with feedback signals from a force sensor (8) fitted to the forming roller (5) to control the pushing force of the forming roller (5) so as to form a work (1) following the cross section shape of a mandrel (3), so that the product having the non-circular cross section normal to the axis of rotation can also be formed. The motion of the forming roller (5) in the forming operation is stored, the shape of the mandrel (3) near the point of the forming roller (5) contacting with the work (1) is estimated based on the motion of the forming roller (5) from a time point before one rotation of the mandrel (3), and according to the estimation, the rotational speed of a motor for rotating the mandrel (3) is controlled for the forming operation.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: September 8, 2009
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventor: Hirohiko Arai
  • Patent number: 7568370
    Abstract: A system and method are described for ballizing and measuring a workpiece bore hole. In one embodiment, a ballizing unit having a distal end removably coupled to a ballizing member moves the ballizing member from a first position within the bore hole to a second position. A metrology unit having a distal end removably coupled to the ballizing member moves the ballizing member from the second position back to the first position. A sensor detects a force exerted on the ballizing member by the workpiece at a third position, which is located between the first and second positions.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: August 4, 2009
    Assignee: Seagate Technology LLC
    Inventors: Lev M. Dvoskin, Edelgard Heine, legal representative, Roger A. Addy, Gunter K. Heine
  • Publication number: 20090151413
    Abstract: This invention provides a rolling method and a rolling apparatus, for flat-rolled metal materials capable of stably producing flat-rolled metal materials not having, or having extremely little, camber. A rolling method for a flat-rolled metal material uses rolling equipment including a rolling mill and at least a pair of pinch rolls for clamping a rolled material on the exit side of the rolling mill having a mechanism in which either one, or both, of Upper and lower roll assemblies have a mechanism for supporting a work roll by split backup rolls split into at least three segments in an axial direction, the split backup roll group having a construction for supporting both a vertical direction load and a rolling direction load acting on the contacting work roll and each of the split backup rolls independently having a load measuring device.
    Type: Application
    Filed: December 10, 2008
    Publication date: June 18, 2009
    Applicant: Nippon Steel Corporation
    Inventors: Shigeru Ogawa, Kenji Yamada, Toshiyuki Shiraishi, Yasuhiro Higashida
  • Patent number: 7497104
    Abstract: A rolling stand includes at least one roller having a roller journal which is rotatably supported by an eccentric bushing which in turn is rotatably supported by a low-friction bearing unit. An adjusting mechanism exerts an adjusting force on the eccentric bushing for rotating the eccentric bushing with respect to the housing and maintaining the eccentric bushing in a desired position. In order to determine a rolling force in the rolling stand, the eccentric bushing is rotated to a desired position relative to the housing by the adjusting mechanism, and an effective adjusting force in the adjusting mechanism is measured when the eccentric bushing is held in the desired position. The rolling force can then be ascertained on the basis of the measured adjusting force.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: March 3, 2009
    Assignee: KOCKS Technik GmbH & Co. KG
    Inventors: Ali Bindernagel, Heinrich Potthoff
  • Patent number: 7481090
    Abstract: This invention provides a rolling method and a rolling apparatus, for flat-rolled metal materials capable of stably producing flat-rolled metal materials not having, or having extremely little, camber. A rolling method for a-flat-rolled metal material uses rolling equipment including a rolling mill and at least a pair of pinch rolls for clamping a rolled material on the exit side of the rolling mill having a mechanism in which either one, or both, of upper and lower roll assemblies have a mechanism for supporting a work roll by split backup rolls split into at least three segments in an axial direction, the split backup roll group having a construction for supporting both a vertical direction load and a rolling direction load acting on the contacting work roll and each of the split backup rolls independently having a load measuring device.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: January 27, 2009
    Assignee: Nippon Steel Corporation
    Inventors: Shigeru Ogawa, Kenji Yamada, Toshiyuki Shiraishi, Yasuhiro Higeshida
  • Patent number: 7475581
    Abstract: A method of increasing control precision of a path of a product in a leveling machine including: a fixed support cage; two leveling assemblies with parallel rollers, which are placed above and below the strip respectively; devices necessary to adjust the interlocking of the rollers; a mechanism for measuring leveling forces at least of two sides of the machine; and a theoretical pre-setting model. The method directly measures at least one value for the spacing of the leveling rollers, which is compared to reference values, and uses the members for adjusting the position of the leveling rollers to maintain the measured values equal to the reference values. The method is particularly suitable for machines used to level flat metal products.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: January 13, 2009
    Assignee: Siemens VAI Metals Technologies SAS
    Inventor: Andrzej Farnik
  • Patent number: 7310982
    Abstract: The invention provides a rolling method for a flat-rolled metal material and a rolling apparatus for the method each capable of stably producing a flat-rolled metal material free from camber or having an extremely light camber. The method is a rolling method of a flat-rolled metal material executed by using a rolling mill including at least work rolls and backup rolls. The apparatus is a rolling mill for this method. A rolling direction force acting on roll chocks on the operator side and the driving, side of the work roll is measured, the difference of the rolling direction force between the operator side and the driving side is calculated and a left-right swivelling component of roll gap of the rolling mill is controlled on the basis of this difference.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: December 25, 2007
    Assignee: Nippon Steel Corporation
    Inventors: Shigeru Ogawa, Atsushi Ishii, Yasuhiro Higashida, Takashi Hisatsune
  • Patent number: 7210209
    Abstract: A system and method are described for ballizing and measuring a workpiece bore hole. In one embodiment, a ballizing unit having a distal end removably coupled to a ballizing member moves the ballizing member from a first position within the bore hole to a second position. A metrology unit having a distal end removably coupled to the ballizing member moves the ballizing member from the second position back to the first position. A sensor detects a force exerted on the ballizing member by the workpiece at a third position, which is located between the first and second positions.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: May 1, 2007
    Assignee: Seagate Technology LLC
    Inventors: Lev Mikhailovich Dvoskin, Edelgard Heine, legal representative, Roger Allen Addy, Gunter Karl Heine, deceased
  • Patent number: 7131304
    Abstract: A spinning method which makes it possible to control the pressing force of a roller tool with satisfactorily high responsiveness and have the roller tool press work following the contour of a forming die even if the die may have its radial length vary at a high speed relative to the angle of its rotation when making a product which is not circular in its cross section normal to the axis of rotation of the die, and an apparatus therefor. The roller tool is driven by at least two mutually crossing linear motors and the thrust to be generated by each linear motor is adjusted to control the feeding displacement of the roller tool and the pressing force of the roller tool against a piece of work.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: November 7, 2006
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventor: Hirohiko Arai
  • Patent number: 7089771
    Abstract: In a method and a strip treatment installation, in particular a strip rolling mill train or a strip rolling stand, to avoid strip stickers, as the material is being wound up the distribution of the radial pressure exerted by the strip on the coiler drum or a winding reel is measured over the strip width, then the measured values are used to produce a reproduction of the actual local stress distribution in the strip, and this reproduction is used as a template for a set curve for controlling the strip tensile stress distribution, on the basis of which actuators of the strip treatment installation are adjusted with a view to achieving a uniform compressive stress distribution.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: August 15, 2006
    Assignee: BFI VDeh—Institut fur angewandte Forschung GmbH
    Inventors: Gert Mucke, Paul-Dieter Putz, Eberhard Neuschutz
  • Patent number: 7031797
    Abstract: Input variables, which describe a metal strip prior to and after the passage of a rolling stand, are fed to a material flow model. The material flow model determines online a rolling force progression in the direction of the width of the strip and fees said progression to a roller deformation model. The latter determines roller deformations from said progression and feeds them to a desired value calculator, which calculates the desired values for the controlling elements of profile and surface evenness using the calculated roller deformations and a contour progression on the runout side.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: April 18, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Johannes Reinschke, Friedemann Schmid, Marco Miele
  • Patent number: 6763694
    Abstract: Vibration damping apparatus (40) includes a body in the form of backup roll balance piston (42) positionable for sliding movement in an enclosure in the form of cavity (44) in the lower backup roll chock (30) of the mill stack (10). The body of the piston is a casing which performs the role of a conventional postion. A damping means is integral with the piston (42) for providing vibration damping of opposing backup roll chocks (24, 30). The damping means is a specially designed absorption system to provide tuned stiffness and damping elements which act in parallel and are located in compartment (46) at an uppermost end or cap of the piston (42). A second vibration absorbent compartment portion (56) of the piston (42) also includes vibration absorbing components. Portion (56) is an integral cap located at the end of the piston (42) in contact with the fluid (52).
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: July 20, 2004
    Assignee: Industrial Automation Services PTY LTD
    Inventors: Gary Boulton, John Edwards, Paul Meehan, Glen Wallace
  • Patent number: 6694793
    Abstract: In a process in roller folding a folding roller is moved against a workpiece. The urging force of the folding roller against the workpiece is resilient, and the folding roller moves in a path along the workpiece by means of a movement device provided with a control system. The urging force is sensed by a sensor, which is integral in or included in the movement device, and the output signal of the sensor is fed to the control system.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: February 24, 2004
    Assignee: ABB AB
    Inventor: Jan Persson
  • Patent number: 6672119
    Abstract: Sheet piling and like steel shapes are made in a caliber rolling mill having upper and lower rolls of suitable contour. One of the rolls is axially fixed and the other can be shifted axially in opposite directions so that shoulders of the rolls engage and these positions are stored along with a relationship of axial force and spring constants of the mill frame. The rolling then takes these stored values into consideration.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: January 6, 2004
    Assignee: SMS Demag Aktiengesellschaft
    Inventors: Michael Minnerop, Hans-Jürgen Reismann, Helmut Terhart
  • Patent number: 6619087
    Abstract: In a rolling method applied to a multi-roll strip rolling mill composed of not less than four rolls, one of the zero point of the roll positioning devices and the deformation characteristic of the strip rolling mill or alternatively both the zero point of the roll positioning devices and the deformation characteristic of the strip rolling mill are found from a measured value of the thrust counterforces in the axial direction of the roll acting on at least all the rolls except for the backup rolls in the kiss-roll tightening state and also from a measured value of the roll forces of the backup roll acting on the backup roll chocks of the top and the bottom backup roll in the vertival direction. According to the thus obtained zero point of the roll positioning devices or the deformation characteristic of the strip rolling mill, the setting and control of the roll forces is executed when rolling is carried out.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: September 16, 2003
    Assignee: Nippon Steel Corporation
    Inventors: Shigeru Ogawa, Atsushi Ishii, Kenji Yamada, Satoru Ohta, Katsuhiko Koumoto
  • Patent number: 6619090
    Abstract: A roll-hardening machine for crankshafts with hard-rolling tools (2) which each have a hard-rolling roller head (1) and a counter-support roller that are each detachably attached to the ends (17) of appropriate scissors arms (3) by means of two clamping blocks (15) wherein respectively a first of the two clamping blocks (15) is positioned on the front surface (16) of the end (17) of the scissor arm (3) and the second clamping block is located at a right angle to the first (15) on the side surface (16) of this same scissor arm (3) on the tool side, characterized in that the first clamping block (15) is supported on the front surface (16) at the end (17) of the respective scissors arm (3) such that it can slide in the direction of the appropriate hard-rolling tool (1), the hard-rolling roller head (1) is supported moveably at the location of the second clamping block on the scissors arm (3), by having guide grooves on its front surfaces facing the scissors arm (3), wherein prismatic blocks of the scissors arm (
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: September 16, 2003
    Assignee: Hegenscheidt-MFD GmbH & Co. KG
    Inventor: Roland Heffe
  • Patent number: 6523383
    Abstract: A monitoring and controlling system for monitoring and controlling various operating characteristics of machine components. The monitoring and controlling system includes a primary transceiver, with sensors and control devices, mounted integrally with the monitored component. The primary transceiver communicates with a secondary transceiver and receives its electrical power from the secondary transceiver without use of interconnecting communication or power cables. The integrated mounting of the primary transceiver and sensors within the monitored component without the use of interconnecting cables allows for replacement of the monitored component in harsh operating environments without the risk of damage to interconnecting electrical connectors and cables. The operating data detected by the sensor for the monitored component is communicated by the primary transceiver and the secondary transceiver to a monitoring network which analyzes the data to determine the need for maintenance of the monitored component.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: February 25, 2003
    Assignee: The Timken Company
    Inventors: Mark A. Joki, David G. Beechy, Kevin E. Rehfus, Raymond A. Severyn, Kenneth W. Lindsay
  • Patent number: 6401506
    Abstract: In a rolling method applied to a multi-roll strip rolling mill composed of not less than four rolls, one of the zero point of the roll positioning devices and the deformation characteristic of the strip rolling mill or alternatively both the zero point of the roll positioning devices and the deformation characteristic of the strip rolling mill are found from a measured value of the thrust counterforces in the axial direction of the roll acting on at least all the rolls except for the backup rolls in the kiss-roll tightening state and also from a measured value of the roll forces of the backup roll acting on the backup roll chocks of the top and the bottom backup roll in the vertival direction. According to the thus obtained zero point of the roll positioning devices or the deformation characteristic of the strip rolling mill, the setting and control of the roll forces is executed when rolling is carried out.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: June 11, 2002
    Assignee: Nippon Steel Corporation
    Inventors: Shigeru Ogawa, Atsushi Ishii, Kenji Yamada, Satoru Ohta, Katsuhiko Koumoto