Having Gripper Feed Jaws Patents (Class 470/177)
  • Patent number: 10857585
    Abstract: The present invention provides a transfer device of a multistage forging press machine, capable of making a power transmission mechanism compact with a reduced number of components, and capable of easily adjusting a conveyance position. Additionally, the present invention provides a transfer device of a multistage forging press machine, capable of moving a plurality of chuck units in a lump to a place where replacement work can be performed easily, and capable of replacing chuck claws easily.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: December 8, 2020
    Assignees: DAIDO STEEL CO., LTD., SAKAMURA HOT ART CO., LTD.
    Inventors: Hideaki Hayashi, Shinichi Miyano, Daisuke Enomoto, Masahiro Taniguchi, Minoru Enomoto
  • Patent number: 7308816
    Abstract: A forming machine includes a first transmission mechanism connected to a cutting mechanism and a conveying clamp mechanism, a drive mechanism for driving the first transmission mechanism; and a second transmission mechanism driven by the drive mechanism for driving a feeding mechanism. The second transmission mechanism includes a driven wheel driven by the drive mechanism, a first swing member connected to the feeding mechanism and confronting the driven wheel, an eccentric pin projecting axially from the driven wheel and connected slidably to the first swing member. The eccentric pin slides relative to the first swing member while rotating along with the driven wheel so that the first swing member is swung to and fro in a cycle motion and completes one cycle for each revolution of the eccentric pin.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: December 18, 2007
    Assignee: FWU Kuang Enterprises Co., Ltd.
    Inventor: Yun-Te Chang
  • Patent number: 6508715
    Abstract: A fitting for the tool ring in a nail machine, or a tool ring, said fitting having means for receiving and securing at least one holding jaw in the fitting, and a support face that enables the fitting to abut on a support face which is complementary to the support face of the fitting; and means for clamping the fitting onto the complementary support face; and wherein the fitting has at least one clamp face which is arranged opposite the support face; and wherein the means for clamping the fitting on the tool ring comprise a first element configured for abutment on the clamp face and past the support face and for engaging with an element on a tool ring included therefor.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: January 21, 2003
    Assignee: Enkotec A/S
    Inventor: Jøn Boie Jensen
  • Patent number: 6248020
    Abstract: A fastener forming apparatus comprises a positive stop that prevents workpieces from overshooting the end of a forming stroke. A workpiece transfer mechanism transfers one unformed workpiece at a time into a workpiece gripper and drives completed workpieces out of the workpiece gripper and onto an exit path. A compound hydro-pneumatic cylinder moves the gripper and one workpiece at a time downward on a forming stroke into contact with a rotating forming tool. A limit switch causes the reciprocator to reverse direction at the end of the forming stroke. The forming tool includes a tool adapter head that holds various forming implements such as cutting blades or drill bits. In one embodiment the forming tool is a groover apparatus that cuts circumferential grooves around fasteners. In this embodiment, the lower limit switch signals a controller to hold the reciprocator at the end of the forming stroke while the groover forms the groove.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: June 19, 2001
    Assignee: L & M Machining and Manufacturing, Inc.
    Inventors: Lawrence A. Morath, Jan A. Linthorst, Ronald W. Marchionni, Dennis F. Custer
  • Patent number: 6089985
    Abstract: A fastener sorting apparatus is configured to mount on a fastener forming machine and to shunt bent workpieces through a wastegate of the fastener forming machine when the bent workpieces contact a detection ring. The detection ring is electrically-conductive and is coaxially aligned with a part gripper of the forming machine. The ring has an inner diameter slightly larger than an outer diameter of a series of workpieces to be sorted. Either the ring or the gripper are moved so that a workpiece held in the gripper passes through the ring. If the workpiece is bent beyond acceptable limits it will contact the ring, closing an electrical circuit. Closing of the circuit causes a workpiece diverter to shunt the workpieces through the wastegate.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: July 18, 2000
    Assignee: L & M Machining and Manufacturing, Inc.
    Inventors: Lawrence A. Morath, Jan A. Linthorst, Ronald W. Marchionni, Dennis F. Custer
  • Patent number: 6004215
    Abstract: A fastener forming apparatus comprises a positive stop that prevents workpieces from overshooting the end of a forming stroke. A workpiece transfer mechanism transfers one unformed workpiece at a time into a workpiece gripper and drives completed workpieces out of the workpiece gripper and onto an exit path. A compound hydro-pneumatic cylinder moves the gripper and one workpiece at a time downward into contact with a rotating forming tool. A knurled ring is adjustably supported on a threaded portion of a lower piston of the hydro-pneumatic cylinder in a position to contact a stationary stop surface when the workpiece gripper and tool reach the end of the forming stroke, halting the downward motion of the workpiece. The ring also actuates a lower limit switch at the stationary stop surface which causes the reciprocator to reverse direction. The forming tool includes a tool adapter head that holds various forming implements such as cutting blades or drill bits.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: December 21, 1999
    Assignee: L & M Machinery & Manufacturing
    Inventors: Lawrence A. Morath, Jan A. Linthorst, Ronald W. Marchionni, Dennis F. Custer
  • Patent number: 5906544
    Abstract: A high speed apparatus for assembling washers on headed parts such as bolt blanks, wherein individual washers are mechanically positively placed and seated onto individual blanks. The apparatus includes a linear transfer mechanism for progressively shifting the blanks through successive stations at which a washer is first placed on the end of a blank, is then "stuffed" axially along the shank of the blank, and is then positively abutted with the head. Various movements of the washers and blanks are effected by individual servomotors that greatly simplify the complexity of the apparatus, provide timing/stroke flexibility, and independent control.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: May 25, 1999
    Assignee: The National Machinery Company
    Inventors: Gregory A. Smith, Gregory W. Kiser
  • Patent number: 5713236
    Abstract: A transfer mechanism for a progressive forging machine in which the fingers for transporting workpieces from station to station are arranged to pick the workpieces axially out of dies from which they are being discharged, transfer the workpieces laterally from the discharging stations to receiving stations, place the workpieces axially into the receiving stations, and then open wide enough to clear tooling on the slide and return to the original delivery stations. Included in the mechanism is an adjustment for the axial stroke of the fingers and a cassette mounting for the fingers enabling them to be readily replaced with another cassette for a changeover in the workpieces being forged.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: February 3, 1998
    Assignee: The National Machinery Company,
    Inventors: Steve C. Genet, Richard J. McClellan
  • Patent number: 5250008
    Abstract: An apparatus for making elongated headed workpieces having a conveyor device for successively transporting elongated workpieces such as wire pieces transversely to their longitudinal axes from one treatment station into at least one treatment station and including a guided conveyor belt assembly to which the workpieces may be clamped by their circumferential surfaces. Two sections, running together and side by side, of two conveyor belts are guided in such a manner between the stations that they remain in immovable contact on both sides with the transported workpieces. At least one of the two conveyor belts is a toothed belt in which the gaps between the teeth take up the workpieces singly.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: October 5, 1993
    Assignee: WAFIOS Maschinenfabrik GmbH & Co.
    Inventor: Gerhard Lange