Patents Assigned to GFM GmbH
  • Publication number: 20230249414
    Abstract: A method and a device for producing a reinforcing profile from at least one layer (1, 2, 3) cut out of a preimpregnated fibrous web are described, said layer (1, 2, 3) being applied to a mould core (4) determining the profile shape, being retained on the mould core (4) in the application region (6), and being pressed progressively onto the mould core, starting from this application region (6), transversely to the profile longitudinal direction, as far as the profile longitudinal edges. In order to create advantageous production conditions, it is proposed that the layer (1, 2, 3) be pressed incrementally progressively so as to be shaped onto the mould core (4), in the longitudinal direction thereof, with the aid of moulding punches (8) that are arranged offset with respect to one another both in the circumferential direction and in the longitudinal direction of the mould core (4) and are able to be forced in the direction of the moulding faces of the mould core (4).
    Type: Application
    Filed: August 11, 2021
    Publication date: August 10, 2023
    Applicant: GFM GmbH
    Inventor: Rudolf Ahrer
  • Publication number: 20230234308
    Abstract: The invention relates to a method for providing blanks (Z) from a fibre web (1) in a sequence predefined for constructing a workpiece from said blanks (Z) layer-by-layer, wherein the blanks (Z), which each belong to a removal region (E) of the fibre web (1), are removed from the removal regions (E) and deposited, per removal region (E), in at least one deposit element (A) and then removed from the deposit elements (A) in the sequence predefined for constructing the workpiece layer-by-layer. In order to create advantageous sorting conditions, according to the invention the blanks (Z) that are removed individually from the removal regions (E) are stacked on top of one another in the deposit elements (A) in each case in a sequence that is the reverse of their layering sequence in the workpiece.
    Type: Application
    Filed: May 12, 2021
    Publication date: July 27, 2023
    Applicant: GFM GmbH
    Inventor: Harald Dietachmayr
  • Publication number: 20230182410
    Abstract: Providing blanks from a fibre web includes removing the blanks from removal regions and depositing the blanks in at least one deposit element. The blanks are then removed from the deposit elements in accordance with a sequence predefined by a layer-by-layer construction of a workpiece. The blanks that are individually removed from the removal regions are stacked on top of one another in the deposit elements in a sequence that corresponds to a layering sequence of the blanks in the workpiece. The blanks are then successively removed individually from the deposit elements in a sequence that is reversed with respect to the layering sequence of the blanks in the workpiece and are stacked on top of one another in a storage element before being successively removed from the storage element in the sequence predefined for constructing the workpiece layer-by-layer and inserted into a mould for producing the workpiece.
    Type: Application
    Filed: June 18, 2021
    Publication date: June 15, 2023
    Applicant: GFM GmbH
    Inventor: Harald Dietachmayr
  • Publication number: 20220362833
    Abstract: The invention relates to a method for working a metal casting strand (17) that is round in cross-section, by means of a reduction in cross-section in the final solidification region with the aid of at least three forming tools which are distributed around the circumference and act simultaneously on the casting strand (17). In order to provide advantageous working conditions, according to the invention the casting strand (17) is formed by forging tools (2, 3) constituting the forming tools in a longitudinal portion for each forming stroke, which portion corresponds to at least a fourth of the strand diameter before the reduction in cross-section, and the forging tools (2, 3) are rotated by an angle step about the axis of the casting strand (17) between the forming strokes.
    Type: Application
    Filed: December 22, 2020
    Publication date: November 17, 2022
    Applicant: GFM GmbH
    Inventor: Robert Koppensteiner
  • Publication number: 20220143845
    Abstract: A gripper, which removes blanks from a web of material lying flat, includes gripping elements which can each be actuated separately. The gripping elements are mounted independently of one another in a frame so as to be displaceable perpendicularly to a reference plane parallel to the web of material. The gripping elements are set against the web of material and actuated in a takeover position of the gripper aligned with respect to the blank by means of a control device. In addition to the gripping elements located inside the contour line, there are also other gripping elements adjacent to the blank and located outside the contour line that are set against the material web as downholders. Gripping elements within the contour line of the blank are actuated and retracted from the material web, taking along the blank, before the gripper is lifted off the material web from the takeover position.
    Type: Application
    Filed: June 16, 2020
    Publication date: May 12, 2022
    Applicant: GFM GmbH
    Inventor: Harald Dietachmayr
  • Patent number: 11260551
    Abstract: An ultrasonic cutter cuts edge chamfers of plate-shaped workpieces using a cutter head which forms an axis of rotation and a blade which extends from the cutter head and forms a cutting wedge, terminating in a straight cutting edge, between flank and contact faces determined by the wedge angle. In order to create advantageous structural conditions, the axis of rotation extending on the blade side of the flank face is at a distance from the flank face which is equal to or greater than the distance of the center of mass of the blade from the flank face and the cutting edge, extending in the direction of the axis of rotation, extends at a distance from the axis of rotation which corresponds at most to the blade thickness.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: March 1, 2022
    Assignee: GFM GmbH
    Inventor: Franz Heidlmayer
  • Publication number: 20210146564
    Abstract: The invention relates to a ultrasonic cutter for the cutting of edge chamfers of plate-shaped workpieces, having a cutter head (1) which forms an axis of rotation (6) and having a blade (2), which extends from the cutter head (1) and forms a cutting wedge, terminating in a straight cutting edge (5), between flank and contact faces (3, 4) determined by the wedge angle. In order to create advantageous structural conditions, it is proposed that the axis of rotation (6) extending on the blade side of the flank face (3) is at a distance (e) from the flank face (3) which is equal to or greater than the distance (s) of the centre of mass (S) of the blade (2) from the flank face (3), and that the cutting edge (5) extending in the direction of the axis of rotation (6) extends at a distance (a) from the axis of rotation (6) which corresponds at most to the blade thickness (d).
    Type: Application
    Filed: September 30, 2019
    Publication date: May 20, 2021
    Applicant: GFM GmbH
    Inventor: Franz Heidlmayer
  • Patent number: 10166596
    Abstract: The invention relates to a forging apparatus, comprising forging rams (4) that are guided in the direction of stroke and accommodate forging tools (3), and lifting drives (7) which can be driven by a shaft (10) and which are supported in a non-positive manner on an abutment (12) of the forging rams (4) held under pretension in contact on the lifting drives (7). In order to provide simple constructional conditions it is proposed that the shafts (10) of the lifting drives (7) comprise two drive cams (11) which are angularly offset by 180° in relation to each other, are centrally symmetric with respect to the shaft axis, and cooperate with the abutments (12) of the forging rams (4).
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: January 1, 2019
    Assignee: GFM-GmbH
    Inventor: Alfred Seeber
  • Publication number: 20170320125
    Abstract: A description is given of a method and a device for forging a rod-shaped workpiece (5) which is deformed with the aid of forging tools (1, 2, 3, 4) in the sense of a cross-sectional displacement perpendicular to the forging axis (a) and is subjected to an axial advancement and possibly a rotation about the forging axis (a) during the pauses in the engagement of the forging tools (1, 2, 3, 4). In order to achieve an advantageous grain refinement, it is proposed that the workpiece (5) is deformed in the sense of the cross-sectional displacement perpendicular to the forging axis (a) in a bending zone (13) between two central supports (11) by means of the forging tools (1, 2, 3, 4) acting on the workpiece (5) radially in relation to the forging axis (a).
    Type: Application
    Filed: December 15, 2015
    Publication date: November 9, 2017
    Applicant: GFM - GmbH
    Inventor: Robert KOPPENSTEINER
  • Patent number: 9505050
    Abstract: A forging machine is described having at least one clamping head (6) for a work-piece (5) and having a rotational drive, which is controllable in dependence on the engagement of the forging tools (3), for the clamping head (6). To provide advantageous drive conditions, it is proposed that the rotational drive comprise at least one hydraulic motor (11), which is connected to a pump circuit (12), and which is connected to a hydraulic circuit (17), which is connected in parallel to the pump circuit (12), for the periodic supply and discharge of a predefined quantity of hydraulic medium in dependence on the stroke frequency and/or the stroke location of the forging tools (3).
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: November 29, 2016
    Assignee: GFM GmbH
    Inventor: Alfred Seeber
  • Patent number: 9409226
    Abstract: An apparatus for forging a hollow body has forging tools which are arranged in a centrically symmetrical way about a forging axis, and a forging mandrel. The forging mandrel has a mandrel core and mandrel segments which are distributed over the circumference of the mandrel core, are exchangeably held on the mandrel core, and form forming surfaces for the hollow space of the hollow body.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: August 9, 2016
    Assignee: GFM-GmbH
    Inventor: Robert Koppensteiner
  • Publication number: 20160151827
    Abstract: A forging machine is described having at least one clamping head (6) for a work-piece (5) and having a rotational drive, which is controllable in dependence on the engagement of the forging tools (3), for the clamping head (6). To provide advantageous drive conditions, it is proposed that the rotational drive comprise at least one hydraulic motor (11), which is connected to a pump circuit (12), and which is connected to a hydraulic circuit (17), which is connected in parallel to the pump circuit (12), for the periodic supply and discharge of a predefined quantity of hydraulic medium in dependence on the stroke frequency and/or the stroke location of the forging tools (3).
    Type: Application
    Filed: November 30, 2015
    Publication date: June 2, 2016
    Applicant: GFM - GmbH
    Inventor: Alfred SEEBER
  • Publication number: 20160096214
    Abstract: The invention relates to a forging apparatus, comprising forging rams (4) that are guided in the direction of stroke and accommodate forging tools (3), and lifting drives (7) which can be driven by a shaft (10) and which are supported in a non-positive manner on an abutment (12) of the forging rams (4) held under pretension in contact on the lifting drives (7). In order to provide simple constructional conditions it is proposed that the shafts (10) of the lifting drives (7) comprise two drive cams (11) which are angularly offset by 180° in relation to each other, are centrally symmetric with respect to the shaft axis, and cooperate with the abutments (12) of the forging rams (4).
    Type: Application
    Filed: October 1, 2015
    Publication date: April 7, 2016
    Applicant: GFM - GmbH
    Inventor: Alfred SEEBER
  • Publication number: 20150306678
    Abstract: A chucking apparatus for a workpiece with honeycomb structure includes a table that can be supplied with vacuum and a clamping plate which can be placed on the table and which accommodates the workpiece in the region of an already profiled surface determined by the face ends of the honeycombs, whose receiving surface, which corresponds to the profiled surface of the workpiece, is provided with suction openings to the table. In order to provide advantageous chucking conditions, the clamping plate has an open-cell structure.
    Type: Application
    Filed: April 24, 2015
    Publication date: October 29, 2015
    Applicant: GFM - GMBH
    Inventor: Franz HEIDLMAYER
  • Publication number: 20150165753
    Abstract: An apparatus for laying fiber tapes includes a deflection guide for the fiber tapes consisting of pressure plates which are arranged adjacent to one another transversely to the deflection axis and a frame which is displaceable in the laying direction for accommodating the pressure plates. At least a part of the pressure plates respectively form a sliding shoe which is resilient in the pressing direction for the deflection of the tape.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 18, 2015
    Applicant: GFM - GmbH
    Inventor: Harald DIETACHMAYR
  • Publication number: 20150165698
    Abstract: An apparatus for laying fiber tapes includes a deflection guide for the fiber tapes made up of pressure plates for the deflection of the tapes, which pressure plates are arranged adjacent to one another perpendicularly to the deflection axis and are resiliently supported in the pressing direction, and a frame, which is displaceable in the laying direction, for accommodating the pressure plates. The pressure rollers form grooved pulleys which engage in circumferential bearing receivers, are axially guided on each other and between lateral guide stops, and are held in bearing engagement with the bearing receivers by elastic endless belts which are guided about a bearing roller mounted in lateral retainers. The bearing receivers are resiliently supported independently from each other in the pressing direction on an abutment provided between the lateral retainers.
    Type: Application
    Filed: November 12, 2014
    Publication date: June 18, 2015
    Applicant: GFM - GmbH
    Inventor: Harald DIETACHMAYR
  • Publication number: 20150165738
    Abstract: An apparatus for laying fiber tapes includes a deflection guide for the fiber tapes made up of pressure plates arranged adjacent to one another transversely to the deflection axis and a frame for receiving the pressure plates which is displaceable in the laying direction. Pressure plates with rollers for deflecting the tape are provided between the pressure plates with a sliding surface for the deflection of the tape, and the retainers for the rollers, which retainers are arranged laterally on the pressure plates, displaceably engage in the pressing direction in recesses of the pressure plates with the sliding surfaces.
    Type: Application
    Filed: November 12, 2014
    Publication date: June 18, 2015
    Applicant: GFM - GMBH
    Inventor: Harald DIETACHMAYR
  • Publication number: 20150082846
    Abstract: An apparatus for forging a hollow body from a pre-perforated hollow block includes forging tools that can be driven radially in relation to a forging axis, a clamping head which is displaceable on a guide bed in the direction of the forging axis and includes collet chucks for the hollow block, and a mandrel carriage which is arranged on the side of the clamping head facing away from forging tools, which is displaceable independently of the clamping head along the guide bed, and whose mandrel bar provided with the forging mandrel penetrates the clamping head coaxially to the forging axis. In order to provide advantageous constructional conditions the mandrel carriage includes an axial actuating drive for the mandrel bar and can be coupled in a tension-proof manner to the clamping head.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 26, 2015
    Applicant: GFM - GmbH
    Inventors: Rupert WIESER, Robert KOPPENSTEINER
  • Publication number: 20140360325
    Abstract: A method is described for producing a blank (1) from a fiber layup (5) having an edge (3) forming a chamfer (2), wherein the fiber layup (5), which is suctioned onto a cutting support (6) of a cutting table (7), is cut through using a contour cut (17), which extends into the cutting support (6), along the intended contour (4) of the blank (1) and is provided with the chamfer (2) using a chamfer cut (16) running at a flat chamfer angle (?) along the intended contour (4).
    Type: Application
    Filed: April 17, 2014
    Publication date: December 11, 2014
    Applicant: GFM - GmbH
    Inventor: Franz HEIDLMAYER
  • Patent number: 8561452
    Abstract: A forging apparatus is described, comprising forging tools (5) which are arranged in a centrically symmetrical way about a forging axis (2) and whose tool holders (4) radially guided in a frame (3) are connected with lifting drives (7), which each comprise one respective connecting rod (8) that is pivotably supported via abutments (9) on a housing (1) on the one hand and on the tool holder (4) on the other hand, and comprising a common drive for the lifting drives (7) which comprises a torsional vibration drive (11) for at least one actuator (12) for the one of the two abutments (9, 10) of the connecting rods (8), which actuator is rotatably held about the forging axis (2). In order to ensure advantageous constructional conditions, it is proposed that the frame (3) forms the actuator (12) of the common drive for the lifting drives (7), and that the torsional vibration drive (11) is provided between the housing (1) and the frame (3) which is rotatably held about the forging axis (2).
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: October 22, 2013
    Assignee: GFM-GmbH
    Inventor: Alfred Seeber