Sensing Force On Tool Patents (Class 72/14.4)
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Patent number: 11235362Abstract: A method to adjust the drawing action on a bar in a rolling and/or finishing train is provided, as well as an adjustment device associated with the train to implement the method. A metal product is made using the method.Type: GrantFiled: September 24, 2018Date of Patent: February 1, 2022Assignee: DANTELI & C. OFFICINE MECCANICHE S.P.A.Inventors: Daniele Andreatta, Fabio Flumian
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Patent number: 11041781Abstract: A rotary union adapted for connection on a support segment for a shaft includes a sensor disposed within a sensor housing, the sensor housing connected to the housing of the rotary union, and a sound conduit having first and second ends, the first end of the sound conduit being connected to the sensor housing, and the second end of the sound conduit being adapted to be connected to a second support segment for the shaft opposite the first support segment along the shaft, wherein the sensor includes a sensing element in physical contact with the first end of the sound conduit, the sensing element configured to provide a signal in response to vibration present along the sound conduit.Type: GrantFiled: January 21, 2020Date of Patent: June 22, 2021Assignee: Deublin CompanyInventors: Anton A. Petrou, Lu Han
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Patent number: 10815544Abstract: Described herein are thin metal strips having hot rolled exterior side surfaces characterized as being primarily or substantially free of all prior austenite grain boundaries, or at least primarily or substantially free of all prior austenite grain boundaries, and including elongated surface structure. As a result, because the prior austenite grain boundaries are not primarily or substantially present, all such prior austenite grain boundaries are not susceptible to grain boundary etching due to acid etching or pickling. In particular examples, the thin metal strips undergo hot rolling performed with a coefficient of friction equal to or greater than 0.20 with or without use of lubrication.Type: GrantFiled: April 5, 2019Date of Patent: October 27, 2020Assignee: Nucor CorporationInventors: Tao Wang, Kishlay Mishra, Jeffery Edward Keffer
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Patent number: 10799932Abstract: The present disclosure provides a roller hemming apparatus including a hemming bed including a frame and a die, wherein the hemming bed is detachably coupled to a workpiece, and a roller head including a plurality of hemming rollers that is configured to hem an edge of the workpiece by stages. A press force that presses the edge of the workpiece is adjusted by moving the plurality of the hemming rollers along a first direction with a first cylinder when each hemming roller of the plurality of hemming rollers hems the edge of the workpiece.Type: GrantFiled: December 4, 2017Date of Patent: October 13, 2020Assignees: Hyundai Motor Company, KIA Motors CorporationInventor: Ock Do Kim
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Patent number: 9211573Abstract: Provided are hot rolling equipment and a hot rolling method for precisely controlling the meandering and plate shape of a steel strip, thereby making it possible to prevent tail end squeezing of the steel strip. Hot rolling equipment (10) for this purpose, for sequentially passing a steel strip (1) through rolling machines (11, 12) and thereby rolling the steel strip (1), wherein a plurality of split rolls (63) capable of contacting the steel strip (1) is provided between the rolling machines (11, 12), and, when the split rolls (63) contact the steel strip (1), detection torques (Td, Tw) acting on the left and right ends of the split rolls (63) are detected by torque detectors (67a, 67b), the reduction leveling of the rolling machines (11, 12) being adjusted on the basis of the detected detection torques (Td, Tw) to control the meandering and plate shape of the steel strip (1).Type: GrantFiled: December 24, 2010Date of Patent: December 15, 2015Assignee: PRIMETALS TECHNOLOGIES JAPAN, LTD.Inventors: Kanji Hayashi, Shuji Maniwa, Hideaki Furumoto, Shinya Kanemori
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Patent number: 8973419Abstract: 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: GrantFiled: April 11, 2011Date of Patent: March 10, 2015Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Daisuke Kasai, Atsushi Ishii, Shigeru Ogawa
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Patent number: 8616035Abstract: The invention relates to a method for controlling a lateral guiding device for a metal strip (1), the lateral guiding device comprising a guide (2, 4) disposed laterally to the metal band (1) on both sides thereof, it being possible for the two guides (2, 4) to be displaced independently of each other, and both guides (2, 4) being operated in a position-controlled manner, forces of the metal strip that act on a first guide (2) of the two guides (2, 4) and on a second guide (4) of the two guides (2, 4) being measured, and the target position for the first and/or the second guide (2, 4) being controlled as a function of the forces measured at the first and at the second guide (2, 4), such that the lesser value of the forces measured at the first guide (2) and at the second guide (4) is above a selectable lower limit force and below a selectable upper limit force.Type: GrantFiled: December 22, 2010Date of Patent: December 31, 2013Assignee: SMS Siemag AktiengesellschaftInventor: Matthias Tuschhoff
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Publication number: 20120279267Abstract: The invention relates to a method for controlling a lateral guiding device for a metal strip (1), the lateral guiding device comprising a guide (2, 4) disposed laterally to the metal band (1) on both sides thereof, it being possible for the two guides (2, 4) to be displaced independently of each other, and both guides (2, 4) being operated in a position-controlled manner, forces of the metal strip that act on a first guide (2) of the two guides (2, 4) and on a second guide (4) of the two guides (2, 4) being measured, and the target position for the first and/or the second guide (2, 4) being controlled as a function of the forces measured at the first and at the second guide (2, 4), such that the lesser value of the forces measured at the first guide (2) and at the second guide (4) is above a selectable lower limit force and below a selectable upper limit force.Type: ApplicationFiled: December 22, 2010Publication date: November 8, 2012Applicant: SMS SIEMAG AKTIENGESELLSCHAFTInventor: Matthias Tuschhoff
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Publication number: 20120047977Abstract: Methods and Apparatus to increase the efficiency of roll-forming and leveling systems are described herein. An example strip material processing apparatus are described herein includes a first drive system to drive a first plurality of workrolls and a second drive system to drive a second plurality of workrolls. A controller provides a first command reference to the first drive system. The controller measures a first output parameter of the first drive system when the first drive system operates at the first command reference. The controller determines a second command reference based on the first output parameter and the controller drives the second drive system based on the second command reference.Type: ApplicationFiled: October 6, 2011Publication date: March 1, 2012Inventors: Gregory S. Smith, Zachary Williams, Roger Downing
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Patent number: 7854155Abstract: 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: GrantFiled: October 26, 2006Date of Patent: December 21, 2010Assignee: SMS Siemag AktiengesellschaftInventors: Peter Sudau, Olaf Norman Jepsen
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Patent number: 7775079Abstract: 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: GrantFiled: December 10, 2008Date of Patent: August 17, 2010Assignee: Nippon Steel CorporationInventors: Shigeru Ogawa, Kenji Yamada, Toshiyuki Shiraishi, Yasuhiro Higashida
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Patent number: 7584636Abstract: 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: GrantFiled: December 1, 2004Date of Patent: September 8, 2009Assignee: National Institute of Advanced Industrial Science and TechnologyInventor: Hirohiko Arai
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Patent number: 7497104Abstract: 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: GrantFiled: February 26, 2007Date of Patent: March 3, 2009Assignee: KOCKS Technik GmbH & Co. KGInventors: Ali Bindernagel, Heinrich Potthoff
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Patent number: 7481090Abstract: 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: GrantFiled: March 12, 2004Date of Patent: January 27, 2009Assignee: Nippon Steel CorporationInventors: Shigeru Ogawa, Kenji Yamada, Toshiyuki Shiraishi, Yasuhiro Higeshida
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Patent number: 7310982Abstract: 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: GrantFiled: March 12, 2004Date of Patent: December 25, 2007Assignee: Nippon Steel CorporationInventors: Shigeru Ogawa, Atsushi Ishii, Yasuhiro Higashida, Takashi Hisatsune
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Patent number: 7134304Abstract: A micro-roll forming device for providing a cylindrical blank metal article with a minute convexoconcave bearing surface, comprises a powered article holding structure that, when energized, rotates the cylindrical blank metal article about its axis; a forming tool that includes a form roller with a corrugated circular ridge; a tool holding structure that holds the forming tool in such a manner that the corrugated circular ridge of the form roller is directed toward and in contact with an outer surface of the cylindrical blank metal article rotatably held by the article holding structure; a biasing member that is incorporated with the tool holding structure to press the form roller against the outer surface of the cylindrical blank metal article with a given pressing force; and a powered moving structure that, when energized, moves at least one of the article holding structure and the tool holding structure in such a manner that the selected one moves in both a first direction perpendicular to an axis of the uType: GrantFiled: November 8, 2004Date of Patent: November 14, 2006Assignee: Nissan Motor Co., Ltd.Inventors: Tatsuomi Nakayama, Minoru Ota, Manabu Wakuda, Kazuhiko Takashima
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Patent number: 7055354Abstract: The invention concerns a method for adjusting a flattener under traction and a corresponding device, for providing a metal strip (5) in particular a cold-rolled steel plate, comprising a cage (1), cage posts (8), two stacked cassettes (2, 3) supporting each a plurality of rollers (4) between which the metal strip (5) is fed. The invention is characterized in that it consists in measuring a physical quantity representing the angular position of said cassettes (2, 3) relative to the feeding direction of the said trip (5).Type: GrantFiled: November 2, 2001Date of Patent: June 6, 2006Assignee: USINORInventors: Fabrice Tondo, Jacques Yves Bourgon, Pierre Vienot, Christian Aussourd
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Patent number: 6912883Abstract: A thread rolling machine forming a threaded member from a workpiece includes a die, a device for rotating the die, a device for generating a load applied to the die in a workpiece-feeding direction, a member that deforms under the applied load during a thread rolling operation, a strain gauge that generates a signal indicative of the deformation of the member under the applied load, and a computer that calculates the load applied during thread rolling operation based on the signal generated by the strain gauge. The computer can generate a feedback signal permitting control of the applied load generated by the thread rolling machine by controlling either the load generating device or the die-rotating device. An operating method for a thread rolling machine is also described.Type: GrantFiled: March 25, 2003Date of Patent: July 5, 2005Assignee: Minebea Co., Ltd.Inventor: Takeshi Sakai
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Publication number: 20040045332Abstract: A thread rolling machine forming a threaded member from a workpiece includes a die, a device for rotating the die, a device for generating a load applied to the die in a workpiece-feeding direction, a member that deforms under the applied load during a thread rolling operation, a strain gauge that generates a signal indicative of the deformation of the member under the applied load, and a computer that calculates the load applied during thread rolling operation based on the signal generated by the strain gauge. The computer can generate a feedback signal permitting control of the applied load generated by the thread rolling machine by controlling either the load generating device or the die-rotating device. An operating method for a thread rolling machine is also described.Type: ApplicationFiled: March 25, 2003Publication date: March 11, 2004Inventor: Takeshi Sakai
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Patent number: 6694793Abstract: 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: GrantFiled: January 17, 2002Date of Patent: February 24, 2004Assignee: ABB ABInventor: Jan Persson
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Patent number: 6619087Abstract: 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: GrantFiled: December 19, 2001Date of Patent: September 16, 2003Assignee: Nippon Steel CorporationInventors: Shigeru Ogawa, Atsushi Ishii, Kenji Yamada, Satoru Ohta, Katsuhiko Koumoto
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Patent number: 6523383Abstract: 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: GrantFiled: December 28, 2000Date of Patent: February 25, 2003Assignee: The Timken CompanyInventors: Mark A. Joki, David G. Beechy, Kevin E. Rehfus, Raymond A. Severyn, Kenneth W. Lindsay
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Patent number: 6434988Abstract: A tool controlling apparatus includes a position controlling unit and a torque controlling unit for carrying out the conversion between the position control and the torque control of the tool for pushing the work, and the conversion of the torque in the torque control in a moment by using a servo motor in the course of process of the work.Type: GrantFiled: March 1, 2001Date of Patent: August 20, 2002Assignee: NSK, Ltd.Inventors: Ryoichi Suzuki, Takeharu Hamade, Hiroyuki Sawai
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Patent number: 6418767Abstract: A round die type form rolling apparatus comprises: a pair of die moving blocks 15a, 15b rotatably supporting a pair of round dies 12a, 12b; four beam shafts 19 disposed around the rolling position of a work 33 being rolled by the round dies 12a, 12b and extending between the pair of die moving blocks 15a, 15b; and a push mechanism 20 for moving the pair of die moving blocks 15a, 15b toward each other. The die moving blocks 15a, 15b are moved, guided by the beam shafts 19, toward each other and the reaction forces generated between a pair of the round dies 12a, 12b by the rolling pressure are shared by the beam shafts 19 to prevent the round dies from escaping outwardly upwardly due to the reaction force from the work that is generated when the rolling pressure is applied to the work. This arrangement improves the machining precision of the work.Type: GrantFiled: July 2, 2001Date of Patent: July 16, 2002Assignee: Nissei Co., Ltd.Inventors: Toshinaka Shinbutsu, Minoru Yoshizawa, Shuichi Amano, Katsuyuki Nakata, Hiroshi Yoshikawa, Hiroshi Okino
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Patent number: 6401506Abstract: 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: GrantFiled: October 26, 1999Date of Patent: June 11, 2002Assignee: Nippon Steel CorporationInventors: Shigeru Ogawa, Atsushi Ishii, Kenji Yamada, Satoru Ohta, Katsuhiko Koumoto
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Publication number: 20020053230Abstract: 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: ApplicationFiled: December 19, 2001Publication date: May 9, 2002Applicant: Nippon Steel CorporationInventors: Shigeru Ogawa, Atsushi Ishii, Kenji Yamada, Satoru Ohta, Katsuhiko Koumoto
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Patent number: 6354128Abstract: A method to eliminate the play between the chock (13) and the support element (16) in four-high rolling stands (10), the rolling stand (10) comprising working rolls (12) and back-up rolls (11) assembled on respective chocks (13, 14), support blocks (16) to support the chocks (13, 14) and a stationary housing (15), the support blocks (16) to support the chocks (13, 14) and a stationary housing (15), the support blocks (16) being arranged between the uprights of the stationary housing (15) and the relative chocks (13, 14) and supporting means for the crossover lateral displacement of the rolls (11, 12), the stand (10) also comprising transmission means to transmit a thrust (19) acting on the upper chock (13) and contrasting the rolling thrust (20), the method providing to define the value of the inward flection of the uprights of the housing (25) according to the value of the rolling thrust (20), to define the entity of play (21) resulting, with the uprights (15) in this condition of flection, between the chockType: GrantFiled: June 23, 2000Date of Patent: March 12, 2002Assignee: Danieli & C. Officine Meccaniche SpAInventors: Estore Donini, Giacinto Dal Pan
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Patent number: 6318140Abstract: A laminated ring is manufactured by severing a cylindrical drum, which comprises a sheet of maraging steel with welded opposite ends, into a plurality of rings of predetermined width, rolling the rings to a predetermined target circumferential length, correcting circumferential lengths of the rings, aging and nitriding the rings, and laminating the rings into a laminated ring for transmitting power in a continuously variable transmission. A load applied to a circumferential edge of each of the rolled rings and a load applied to another circumferential edge thereof are measured while supporting an inner circumferential surface of the ring and applying a tensile load in a direction to expand the ring. The difference between circumferential lengths of the circumferential edges of the ring is detected based on the difference between the loads applied to the circumferential edges when the difference between the loads is maximum.Type: GrantFiled: September 27, 2000Date of Patent: November 20, 2001Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroaki Yamagishi, Tomotsugu Takahashi, Masahiko Yamauchi
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Patent number: 6266989Abstract: A method and a machine for straightening sections by eliminating multi-axle deviations from the required section and from the required straightness using one or more straightening tools arranged, in series above and below the material to be straightened, on straightening axles which are parallel with one another. The adjustment of the straightening force and the adjustment of the horizontal inclination of the adjustable straightening axle are carried out hydraulically. The hydraulic system is configured so that a rapid change in position is possible either at the front and rear hydraulic cylinders or exclusively at the rear hydraulic cylinder in such a way that the straightening force and/or the horizontal inclination of the adjustable straightening axle can also be set during the straightening process.Type: GrantFiled: March 27, 2000Date of Patent: July 31, 2001Assignee: SMS Demag AGInventors: Siegfried Pohl, Manfred Riffelmann