Patents by Inventor Stefan Wendt
Stefan Wendt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230093771Abstract: The invention relates to an intermediate stand guide (3) on a vertical roll stand (1) of a rolling line for guiding the rolled material into a horizontal roll stand (2) or out of a horizontal roll stand (2) having at least one guide element (4), which is mounted on the vertical roll stand (1) and is adjustable jointly with an adjustment movement of a vertical roll (6) assigned thereto and which follows the adjustment movement of the vertical roll (6), wherein the guide element (4) is arranged set back transversely to the rolling direction by a predefined offset dimension (X?) to the edge of the vertical roll (6) engaged with the rolled material, wherein the guide element (4) is connected to a traverse (5) of the vertical roll stand (1) and the offset dimension (X?) is pre-definable via an installation distance of the vertical roll (6) to the traverse (5) of the vertical roll stand (1).Type: ApplicationFiled: August 31, 2020Publication date: March 23, 2023Applicant: SMS GROUP GMBHInventors: Stefan WENDT, Ron BEUTER
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Publication number: 20230048632Abstract: A method for the automatic calibration of vertical rolls of a vertical rolling stand, each of which is supported in a vertical roll unit which is adjustable with respect to a predetermined center line of a plurality of components arranged in a rolling train, including the steps of a) moving the vertical roll units into a calibration position transverse to the center line against at least one stationary stop of the vertical rolling stand, which has a certain known position with respect to the center line , b) calculating a calibrated initial distance Akal between an outer edge of a vertical roll facing a rolled stock or the center line and the center line in the calibration position, and c) adjusting the vertical roll units to a defined operating position.Type: ApplicationFiled: February 5, 2021Publication date: February 16, 2023Applicant: SMS group GmbHInventors: Stefan WENDT, Ralf SETZER
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Publication number: 20220339687Abstract: An intermediate stand guide on a vertical roll stand of a rolling line for guiding the rolled material into a horizontal roll stand or out of a horizontal roll stand having at least one guide element, which is mounted on the vertical roll stand and is adjustable jointly with an adjustment movement of a vertical roll assigned thereto and which follows the adjustment movement of the vertical roll. The guide element is arranged set back transversely to the rolling direction by a predefined offset dimension to the edge of the vertical roll engaged with the rolled material. The guide element is connected to a traverse of the vertical roll stand and the offset dimension is pre-definable via an installation distance of the vertical roll to the traverse of the vertical roll stand.Type: ApplicationFiled: August 31, 2020Publication date: October 27, 2022Applicant: SMS GROUP GMBHInventors: Stefan WENDT, Ron BEUTER
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Patent number: 11117173Abstract: An adjusting cylinder quick-action adjustment for a long, rapid stroke movement in an edging stand which includes an edger upright, adjustment system, balancing system and edging roll sets, comprises a piston which acts via edging roll chocks of at least one edging roll for adjustment against the rolling stock. The adjustment of the edging roll can be actuated on each side hydraulically by a fluid. The adjusting cylinder quick-action adjustment is mounted in the edger upright and exerts the force required for the edging process. The adjusting cylinder quick-action adjustment includes on each side of the edging upright at least one double cylinder which has two cylinders coupled to one another and is separately controllable and configured for rapid adjustment and for control adjustment of the edging roll.Type: GrantFiled: November 10, 2017Date of Patent: September 14, 2021Assignee: SMS GROUP GMBHInventors: Stefan Wendt, Martin Schmidt, Michael Zielenbach
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Publication number: 20210170459Abstract: An adjusting cylinder quick-action adjustment for a long, rapid stroke movement in an edging stand which includes an edger upright, adjustment system, balancing system and edging roll sets, comprises a piston which acts via edging roll chocks of at least one edging roll for adjustment against the rolling stock. The adjustment of the edging roll can be actuated on each side hydraulically by a fluid. The adjusting cylinder quick-action adjustment is mounted in the edger upright and exerts the force required for the edging process. The adjusting cylinder quick-action adjustment includes on each side of the edging upright at least one double cylinder which has two cylinders coupled to one another and is separately controllable and configured for rapid adjustment and for control adjustment of the edging roll.Type: ApplicationFiled: November 10, 2017Publication date: June 10, 2021Applicant: SMS GROUP GMBHInventors: STEFAN WENDT, MARTIN SCHMIDT, MICHAEL ZIELENBACH
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Patent number: 10835941Abstract: The invention relates to a device 1 for positioning an edging roll 10 of an edging stand, comprising an edging frame 12 to which at least one balancing cylinder 14 is attached, a balancing crossbeam 16 with a drive side 18 positioned opposite of the edging frame 12, and a working side 19 positioned opposite of the drive side 18, wherein a bearing device 20 for the edging roll 10 can be attached, in particular in an interlocking manner, to the balancing crossbeam 16 on the working side 19 thereof and at least one linkage 24 is provided on the drive side 18 thereof, by which linkage the balancing cylinder 14 is in an operative connection with the balancing crossbeam 16, and at least one positioning cylinder 26 attached to the edging frame 12 can be brought into an operative connection with the bearing device (20) in the direction of a rolled material in order to position the edging roll 10 against the rolled material, wherein the compressive force generated by the positioning cylinder 26 acts on the bearing devType: GrantFiled: October 24, 2016Date of Patent: November 17, 2020Assignee: SMS GROUP GMBHInventor: Stefan Wendt
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Publication number: 20180326466Abstract: The invention relates to a device 1 for positioning an edging roll 10 of an edging stand, comprising an edging frame 12 to which at least one balancing cylinder 14 is attached, a balancing crossbeam 16 with a drive side 18 positioned opposite of the edging frame 12, and a working side 19 positioned opposite of the drive side 18, wherein a bearing device 20 for the edging roll 10 can be attached, in particular in an interlocking manner, to the balancing crossbeam 16 on the working side 19 thereof and at least one linkage 24 is provided on the drive side 18 thereof, by which linkage the balancing cylinder 14 is in an operative connection with the balancing crossbeam 16, and at least one positioning cylinder 26 attached to the edging frame 12 can be brought into an operative connection with the bearing device (20) in the direction of a rolled material in order to position the edging roll 10 against the rolled material, wherein the compressive force generated by the positioning cylinder 26 acts on the bearing devType: ApplicationFiled: October 24, 2016Publication date: November 15, 2018Inventor: Stefan WENDT
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Patent number: 8573016Abstract: The invention relates to a compression rolling mill for compressing a metal strand sideways, having a pair of mutually engaging rollers (9, 10), arranged perpendicular to the center axes, connected to a rotary drive (31, 32; 34) by means of articulated shafts (29, 30), characterized in that the two rollers (9, 10) are connected to the rotary drive (31, 32; 34) by means of a gearbox (27, 28) adjustable together with the rollers (9, 10) and by means of articulated shafts (29, 30) each connected to one of the two gearboxes (27, 28), wherein the articulated shafts (29, 30) are inclined at an acute angle to the horizontal.Type: GrantFiled: December 21, 2010Date of Patent: November 5, 2013Assignee: SMS Siemag AktiengesellschaftInventors: Stefan Wendt, Frank Möllering
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Publication number: 20120285214Abstract: The invention relates to a compression rolling mill for compressing a metal strand sideways, having a pair of mutually engaging rollers (9, 10), arranged perpendicular to the center axes, connected to a rotary drive (31, 32; 34) by means of articulated shafts (29, 30), characterized in that the two rollers (9, 10) are connected to the rotary drive (31, 32; 34) by means of a gearbox (27, 28) adjustable together with the rollers (9, 10) and by means of articulated shafts (29, 30) each connected to one of the two gearboxes (27, 28), wherein the articulated shafts (29, 30) are inclined at an acute angle to the horizontal.Type: ApplicationFiled: December 21, 2010Publication date: November 15, 2012Applicant: SMS SIEMAG AKTIENGESELLSCHAFTInventors: Stefan Wendt, Frank Möllering
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Patent number: 7743638Abstract: An adjusting cylinder for long, rapid lifting movements in rolling stands, including vertical edging stands, wherein each adjusting cylinder has at least one piston which acts through the bearing chocks of at least one work roll or of an interposed roll to adjust a work roll on both sides, wherein each adjusting cylinder has a piston that is equipped with two oppositely directed piston rods, and each piston is inserted in a recess in the cylinder base or cylinder cover, such that the base and cover have coaxially arranged bores through which the piston rods pass. The surface formed by the piston and the piston rod is smaller than the surface formed by the piston and the piston rod.Type: GrantFiled: January 17, 2009Date of Patent: June 29, 2010Assignee: SMS Siemag AktiengesellschaftInventors: Florian Lindner, Stefan Wendt
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Patent number: 7726168Abstract: An adjusting cylinder for long, rapid lifting movements in rolling stands, includes vertical edging stands, wherein each cylinder has at least one piston, which acts through the bearing chocks of at least one work roll or of an interposed roll to adjust a work roll on both sides, wherein each adjusting cylinder has a piston that is equipped with two oppositely directed piston rods, and each piston is inserted in a recess in the cylinder base or cylinder cover, such that the base and cover have coaxially arranged bores through which the piston rods pass. The surface formed by one piston and the piston rod is smaller than the surface formed by another piston and the piston rod.Type: GrantFiled: January 17, 2009Date of Patent: June 1, 2010Assignee: SMS Siemag AktiengesellschaftInventors: Florian Lindner, Stefan Wendt
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Patent number: 7631531Abstract: The invention relates to an adjusting roll for the rapid adjustment of rolls in rolling frames, among others vertical upset forging frames, comprising at least one respective piston, which acts on both sides of a working roll to adjust the latter, by means of assembled parts of at least one working roll or an interposed support roll. The inventive adjusting roll has been improved by the provision of a piston (KO), which is equipped with two piston rods (ST1, ST2) that point in opposite directions and the piston or pistons (KO) are inserted into a respective cavity in the roll base (ZB) or roll cover (ZD), said base and cover comprising coaxial bores for conducting the piston rods (ST1, ST2).Type: GrantFiled: October 19, 2004Date of Patent: December 15, 2009Assignee: SMS Demag AGInventors: Florian Lindner, Stefan Wendt
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Publication number: 20090193867Abstract: An adjusting cylinder for long, rapid lifting movements in rolling stands, including vertical edging stands, wherein each adjusting cylinder has at least one piston which acts through the bearing chocks of at least one work roll or of an interposed roll to adjust a work roll on both sides, wherein each adjusting cylinder has a piston that is equipped with two oppositely directed piston rods, and each piston is inserted in a recess in the cylinder base or cylinder cover, such that the base and cover have coaxially arranged bores through which the piston rods pass. The surface formed by the piston and the piston rod is smaller than the surface formed by the piston and the piston rod.Type: ApplicationFiled: January 17, 2009Publication date: August 6, 2009Inventors: Florian Lindner, Stefan Wendt
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Publication number: 20090183545Abstract: An adjusting cylinder for long, rapid lifting movements in rolling stands, includes vertical edging stands, wherein each cylinder has at least one piston, which acts through the bearing chocks of at least one work roll or of an interposed roll to adjust a work roll on both sides, wherein each adjusting cylinder has a piston that is equipped with two oppositely directed piston rods, and each piston is inserted in a recess in the cylinder base or cylinder cover, such that the base and cover have coaxially arranged bores through which the piston rods pass. The surface formed by one piston and the piston rod is smaller than the surface formed by another piston and the piston rod.Type: ApplicationFiled: January 17, 2009Publication date: July 23, 2009Inventors: Florian Lindner, Stefan Wendt
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Patent number: 7434436Abstract: A roll stand for edgers in rolling mills. The roll stand is formed of several pieces, including two crossheads and four longitudinal bars as main components, as well as one respective common cruciform junction point for the crosshead and the longitudinal bars, which is located at the ends of the longitudinal bars. Pretensioned through bolts that act as a joint are used at least at the top ends of the longitudinal bars.Type: GrantFiled: October 22, 2004Date of Patent: October 14, 2008Assignee: SMS Demag AGInventors: Jochen Münker, Hendrik Langer, Stefan Wendt
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Patent number: 7316144Abstract: In a rolling mill which consists of at least one horizontal stand (1) and at least one vertical stand (2), which are connected with each other, between both stands (1, 2), connection elements (7) are releasably arranged, wherein the connection elements (7) consist of a right flange (14), a left flange (12), and a web (13) arranged therebetween.Type: GrantFiled: October 15, 2004Date of Patent: January 8, 2008Assignee: SMS Demag AGInventors: Stefan Wendt, Jochen Münker
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Patent number: 7299673Abstract: Rolling device with two work rolls supported in a rolling stand by a chock and with at least two additional rolls supported in the rolling stand by an additional chock. At least one of the work rolls and at least one of the additional rolls is adjustable for adjusting a desired roll gap relative to the other work roll or relative to the other additional roll. The work rolls have axial shifting devices for axial shifting and holding the work rolls into a desired axial position relative to the rolling stand. The work rolls are operatively connected with bending devices, by which a bending moment can act on the work rolls. The axial shifting devices are arranged and act between the rolling stand and the work roll locking mechanism. The bending devices are arranged or act between the work roll chock and the chock of the additional roll.Type: GrantFiled: July 21, 2004Date of Patent: November 27, 2007Assignee: SMS Demag AGInventors: Bernd Zieser, Achim Klein, Florian Lindner, Stefan Wendt
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Publication number: 20070107482Abstract: The invention relates to a rolling device (1) comprising two working rollers (2) which are respectively mounted in a roll stand (4) by means of working roller inserts (3). The working roller inserts (3) in the roll stand (4) can be locked and unlocked by means of at least one working roller locking device (5). At least two other rollers (6), especially two support rollers are respectively mounted in the roll stand by means of other inserts (7); the position of at least one of the working rollers (2) and at least one of the other rollers (6) in the roll stand (4) can be adjusted, especially in a vertical direction, in relation to the other working roller (2) or other roller (6) in order to adjust the desired rolling gap. The working rollers (2) are provided with means (8) for axial displacement, enabling the working rollers (2) to placed in a desired axial position in relation to the roll frame (4) and maintained in said position.Type: ApplicationFiled: July 21, 2004Publication date: May 17, 2007Inventors: Bernd Zieser, Achim Klein, Florian Lindner, Stefan Wendt
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Publication number: 20070101791Abstract: Disclosed is a roll stand for edgers in rolling mills. Said roll stand is embodied in several pieces, comprising two crossheads (1a, 1b) and four longitudinal bars (4a, 4b) as main components (1) as well as one respective common cruciform (7) junction point (3) for the crosshead (1a, 1b) and the longitudinal bars (4a, 4b), which is located at the ends (6) of the longitudinal bars. Pretensioned through bolts (5) that act as a joint are used at least at the top ends (6) of the longitudinal bars.Type: ApplicationFiled: October 22, 2004Publication date: May 10, 2007Inventors: Jochen Munker, Hendrik Langer, Stefan Wendt
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Publication number: 20070062240Abstract: The invention relates to an adjusting roll for the rapid adjustment of rolls in rolling frames, among others vertical upset forging frames, comprising at least one respective piston, which acts on both sides of a working roll to adjust the latter, by means of assembled parts of at least one working roll or an interposed support roll. The inventive adjusting roll has been improved by the provision of a piston (KO), which is equipped with two piston rods (ST1, ST2) that point in opposite directions and the piston or pistons (KO) are inserted into a respective cavity in the roll base (ZB) or roll cover (ZD), said base and cover comprising coaxial bores for conducting the piston rods (ST1, ST2).Type: ApplicationFiled: October 19, 2004Publication date: March 22, 2007Applicant: SMS DEMAG AG EDUARD-SCHOLEMANN-STRASSE 4Inventors: Florian Lindner, Stefan Wendt