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).

  • Publication number: 20230093771
    Abstract: 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: Application
    Filed: August 31, 2020
    Publication date: March 23, 2023
    Applicant: SMS GROUP GMBH
    Inventors: Stefan WENDT, Ron BEUTER
  • Publication number: 20230048632
    Abstract: 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: Application
    Filed: February 5, 2021
    Publication date: February 16, 2023
    Applicant: SMS group GmbH
    Inventors: Stefan WENDT, Ralf SETZER
  • Publication number: 20220339687
    Abstract: 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: Application
    Filed: August 31, 2020
    Publication date: October 27, 2022
    Applicant: SMS GROUP GMBH
    Inventors: Stefan WENDT, Ron BEUTER
  • Patent number: 11117173
    Abstract: 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: Grant
    Filed: November 10, 2017
    Date of Patent: September 14, 2021
    Assignee: SMS GROUP GMBH
    Inventors: Stefan Wendt, Martin Schmidt, Michael Zielenbach
  • Publication number: 20210170459
    Abstract: 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: Application
    Filed: November 10, 2017
    Publication date: June 10, 2021
    Applicant: SMS GROUP GMBH
    Inventors: STEFAN WENDT, MARTIN SCHMIDT, MICHAEL ZIELENBACH
  • Patent number: 10835941
    Abstract: 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 dev
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: November 17, 2020
    Assignee: SMS GROUP GMBH
    Inventor: Stefan Wendt
  • Publication number: 20180326466
    Abstract: 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 dev
    Type: Application
    Filed: October 24, 2016
    Publication date: November 15, 2018
    Inventor: Stefan WENDT
  • Patent number: 8573016
    Abstract: 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: Grant
    Filed: December 21, 2010
    Date of Patent: November 5, 2013
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Stefan Wendt, Frank Möllering
  • Publication number: 20120285214
    Abstract: 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: Application
    Filed: December 21, 2010
    Publication date: November 15, 2012
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Stefan Wendt, Frank Möllering
  • Patent number: 7743638
    Abstract: 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: Grant
    Filed: January 17, 2009
    Date of Patent: June 29, 2010
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Florian Lindner, Stefan Wendt
  • Patent number: 7726168
    Abstract: 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: Grant
    Filed: January 17, 2009
    Date of Patent: June 1, 2010
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Florian Lindner, Stefan Wendt
  • Patent number: 7631531
    Abstract: 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: Grant
    Filed: October 19, 2004
    Date of Patent: December 15, 2009
    Assignee: SMS Demag AG
    Inventors: Florian Lindner, Stefan Wendt
  • Publication number: 20090193867
    Abstract: 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: Application
    Filed: January 17, 2009
    Publication date: August 6, 2009
    Inventors: Florian Lindner, Stefan Wendt
  • Publication number: 20090183545
    Abstract: 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: Application
    Filed: January 17, 2009
    Publication date: July 23, 2009
    Inventors: Florian Lindner, Stefan Wendt
  • Patent number: 7434436
    Abstract: 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: Grant
    Filed: October 22, 2004
    Date of Patent: October 14, 2008
    Assignee: SMS Demag AG
    Inventors: Jochen Münker, Hendrik Langer, Stefan Wendt
  • Patent number: 7316144
    Abstract: 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: Grant
    Filed: October 15, 2004
    Date of Patent: January 8, 2008
    Assignee: SMS Demag AG
    Inventors: Stefan Wendt, Jochen Münker
  • Patent number: 7299673
    Abstract: 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: Grant
    Filed: July 21, 2004
    Date of Patent: November 27, 2007
    Assignee: SMS Demag AG
    Inventors: Bernd Zieser, Achim Klein, Florian Lindner, Stefan Wendt
  • Publication number: 20070107482
    Abstract: 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: Application
    Filed: July 21, 2004
    Publication date: May 17, 2007
    Inventors: Bernd Zieser, Achim Klein, Florian Lindner, Stefan Wendt
  • Publication number: 20070101791
    Abstract: 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: Application
    Filed: October 22, 2004
    Publication date: May 10, 2007
    Inventors: Jochen Munker, Hendrik Langer, Stefan Wendt
  • Publication number: 20070062240
    Abstract: 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: Application
    Filed: October 19, 2004
    Publication date: March 22, 2007
    Applicant: SMS DEMAG AG EDUARD-SCHOLEMANN-STRASSE 4
    Inventors: Florian Lindner, Stefan Wendt