Patents Assigned to ARKU Maschinenbau GmbH
  • Publication number: 20230108679
    Abstract: A machine for machining sheet metal parts has a plurality of machining stations along a continuous conveyor belt, including a first sanding belt unit with an endlessly rotating sanding belt, a brush unit with horizontally rotating abrasive brushes and a second sanding belt unit with a fine-grained sanding belt. The three machining stations can be adjusted independently, and the machining tools are interchangeable. The technical data of the machining tools is stored in a tool memory. The machine includes a device for providing a suggestion for an optimal adjustment as well as an operator terminal with a touch screen, via which the user can make inputs and/or receive information from or about the machine. Based on the data entered by the user and the data stored in the machine, the user receives a suggestion for the optimal adjustment of the machine and is prompted to change the tool if necessary.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 6, 2023
    Applicant: ARKU MASCHINENBAU GMBH
    Inventor: Jacques BURTSCHER
  • Publication number: 20200164421
    Abstract: A roller leveler and related method for leveling stock which includes an upper roller frame with an upper leveling unit, and a lower roller frame which has a machine bed with a lower leveling unit. The upper roller frame can be moved upward and downward relative to the lower roller frame by hydraulic drives. The upper leveling unit includes a plurality of upper leveling rollers and the lower leveling unit has a plurality of lower leveling rollers. The upper leveling rollers are supported with upper bearing plates and the lower leveling rollers are supported with lower bearing plates. At least several of the upper and lower leveling rollers are connected at one end to drive shafts of a drive device. A frame is moveable into and out of the roller leveler.
    Type: Application
    Filed: April 3, 2017
    Publication date: May 28, 2020
    Applicant: ARKU Maschinenbau GmbH
    Inventors: Christian Armbruster, Christian Hartmann
  • Patent number: 9950403
    Abstract: A device for grinding and deburring a flat workpiece comprise a grinding roller having an abrasive coating. A coaxial drive shaft that is connected rotation-fast to the guide roller is driven by a drive motor via a primary belt drive. The grinding roller is borne axially displaceable on the drive shaft. Via a second secondary belt drive, the drive motor drives a cam mechanism, comprising a control cylinder that is rotatably borne on the drive shaft of the grinding roller and that has a groove cam and comprising a cam slide arranged on the grinding roller. The rotating grinding roller thus performs an oscillating axial back-and-forth movement.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: April 24, 2018
    Assignee: ARKU Maschinenbau GmbH
    Inventor: Dirk Kröplin
  • Patent number: 8789399
    Abstract: A method for leveling parts in a roller leveling machine, which includes an upper and a lower roller frame, and in which upper and lower leveling rollers are each arranged in a separate leveling roller block, at least one of the leveling roller blocks being variable in its position and angle so that the leveling gap can be adjusted, wherein at least one leveling gap setting device is arranged at the infeed side and at the outfeed side of the leveling machine, and an automatic leveling gap control is provided to set the leveling gap. The method includes determining, for each leveling triangle of the roller leveling machine, an offset value based on the thickness, width, and bending moment of the part to be leveled and characteristics of the leveling machine including a max deflection of the roller frame, and readjusting a setting device of the leveling gap as a function of the leveling triangles mapped onto the part to be leveled as it moves through the leveling gap.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: July 29, 2014
    Assignee: ARKU Maschinenbau GmbH
    Inventors: Horst Braeutigam, Gerald Khim
  • Patent number: 8667826
    Abstract: A device for leveling metal stock, which is moved during operation from an infeed side of the device to an outfeed side, includes: an upper set of leveling rollers and a lower set of leveling rollers, each of which comprises a terminal leveling roller on the infeed side and another one on the outfeed side. A plurality of lower backup roller support blocks, each include a plurality of backup rollers, which serve to support the lower leveling rollers and are arranged in rows, wherein their axes of rotation are parallel to axes of rotation of the leveling rollers. At least one of the terminal lower leveling rollers of the set of lower leveling rollers is arranged so that it can be individually adjusted, wherein the at least one of the terminal lower leveling rollers is supported at each end in a lever arm.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: March 11, 2014
    Assignee: ARKU Maschinenbau GmbH
    Inventor: Reiner Huck
  • Publication number: 20110174595
    Abstract: A device for leveling metal stock, which is moved during operation from an infeed side of the device to an outfeed side, includes: an upper set of leveling rollers and a lower set of leveling rollers, each of which comprises a terminal leveling roller on the infeed side and another one on the outfeed side, wherein the upper and lower leveling rollers are arranged with an offset to each other, and wherein a plurality of upper and lower drive shafts for driving at least some of the leveling rollers. A plurality of lower backup roller support blocks, each includes a plurality of backup rollers, which serve to support the lower leveling rollers and are arranged in rows, wherein their axes of rotation are parallel to axes of rotation of the leveling rollers.
    Type: Application
    Filed: July 10, 2009
    Publication date: July 21, 2011
    Applicant: ARKU Maschinenbau GmbH
    Inventor: Reiner Huck
  • Publication number: 20110138868
    Abstract: A method for leveling parts in a roller leveling machine, which includes an upper and a lower roller frame, and in which upper and lower leveling rollers are each arranged in a separate leveling roller block, at least one of the leveling roller blocks being variable in its position and angle so that the leveling gap can be adjusted, wherein at least one leveling gap setting device is arranged at the infeed side and at the outfeed side of the leveling machine, and an automatic leveling gap control is provided to set the leveling gap. The method includes determining, for each leveling triangle of the roller leveling machine, an offset value based on the thickness, width, and bending moment of the part to be leveled and characteristics of the leveling machine including a max deflection of the roller frame, and readjusting a setting device of the leveling gap as a function of the leveling triangles mapped onto the part to be leveled as it moves through the leveling gap.
    Type: Application
    Filed: July 10, 2009
    Publication date: June 16, 2011
    Applicant: ARKU Maschinenbau GmbH
    Inventors: Horst Braeutigam, Gerald Khim