With Adjustable Stopping Point Or Tool Patents (Class 83/525)
  • Patent number: 5575186
    Abstract: A unique system and process for controlling the stroke positions of tools on a multi-station metal working machine are disclosed. The system and process are suitable for use with a metal working machine which carries the tools on an arm pivoted by an actuator. In the preferred embodiment, the control system includes a control circuit which continuously senses the position of the arm by use of a pulse generator rotary encoder. The control system stores settable initial and final stroke positions for each of the tools. The actuator is controlled to move the arm and the tools carried thereon.
    Type: Grant
    Filed: October 6, 1993
    Date of Patent: November 19, 1996
    Assignee: Peddinghaus Corporation
    Inventor: Kirk A. Kempen
  • Patent number: 4632000
    Abstract: A control device for the driving and translation, in a chosen direction, of the movable head of a diecutter machine, provides for the pre-setting of the direction of translation and for the successive driving of the pressing head by means of five sets of sensitive plates switches, disposed in the front portion of the machine. By touching opportunely one or two of said plates, combinative logic circuits are activated that allow selection of the direction of motion, the actuation of the thus preset displacement and the lowering of the head for the cutting operation.
    Type: Grant
    Filed: April 25, 1985
    Date of Patent: December 30, 1986
    Assignee: Atom S.p.A.
    Inventor: Emiliano Cantella
  • Patent number: 4534249
    Abstract: A method and apparatus for controlling the stroke of a press in which the movements of two portions of a movable platen of the press are continuously sensed during a stroke. A signal is generated whose magnitude at any time during a stroke is dependent on the sum of the distances moved by the two portions of the movable platen during the stroke. The signal is compared with a preselected value which is selected in accordance with the length of the stroke required and the stroke is terminated when the magnitude of the signal equals the preselected value.
    Type: Grant
    Filed: June 3, 1982
    Date of Patent: August 13, 1985
    Assignee: USM Corporation
    Inventor: Richard J. Smith
  • Patent number: 4481849
    Abstract: An apparatus is provided for controlling the raising and lowering of a cutting head assembly of a horizontal bandsaw machine. The apparatus comprises a sensing member for sensing the top surface of a workpiece to be cut and an actuating device which is operatively coupled to the sensing member. The actuating device switches from a first state to a second state when the sensing member senses the top surface of the workpiece. A carrier device is operatively coupled to the actuator wherein the position of the carrier is movable with respect to the cutting edge of the blade of the bandsaw when the actuator is in the first state and the position of the carrier is fixed with respect to the cutting edge of the bandsaw when the actuator is in the second state.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: November 13, 1984
    Assignee: Amada Company, Limited
    Inventor: Minoru Aoyagi
  • Patent number: 4210046
    Abstract: A new and improved cross-beam press includes a carriage which is mounted for movement along a cross-beam located rearwardly of the bed of the press. A movable press head is suspended from the carriage so as to be above the bed of the press. A control system controls the movement of the press head as the same travels toward and then away from the bed of the press. The control system includes means for adjusting the ultimate approach position of the press head with respect to the bed of the press. As a further feature, the bed of the press can be positioned in two different heightwise positions relative to the movable carriage.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: July 1, 1980
    Assignee: USM Corporation
    Inventor: Frederick A. Pretty
  • Patent number: 4154130
    Abstract: In a cutting press of the type wherein an upper platen is forced toward a lower platen to press a die through a workpiece on the lower platen, a more easily operable stroke setting means is provided. In the course of low pressure actuation of the upper platen for this purpose, an operator need only deactivate a solenoid whereby a brake becomes effective to establish the cutting stroke as appropriate to the depth of a die, for subsequent high pressure cutting strokes of the press.
    Type: Grant
    Filed: March 1, 1978
    Date of Patent: May 15, 1979
    Assignee: USM Corporation
    Inventors: Peter S. Smith, Roger J. Benney
  • Patent number: 4083281
    Abstract: A device for positioning the backward stroke end of a shearing blade for use in a bolt forming header comprises a shearing slide reciprocably mounted within a box-shaped frame and having a shearing blade attached to the leading end thereof and a first abutment member fixedly secured to the rear end thereof, said abutment member having an inclined face formed in the rearmost end thereof, a stopper member movably mounted on the rear end portion of said frame and having an inclined face formed in the portion thereof opposite to the inclined face of said abutment member, and an adjusting mechanism mounted on said frame for moving said stopper member in the direction perpendicular to that of reciprocation of said shearing slide, thereby adjusting the backward stroke end of said shearing blade.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: April 11, 1978
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Tazo Yumuro, Takashi Furuto
  • Patent number: 3988954
    Abstract: A shear comprising a frame, a fixed blade, a movable blade cooperating with the fixed blade to cut sheet material disposed therebetween, a hydraulic power cylinder for moving the movable blade upwardly and downwardly past the fixed blade, a lever for drivingly connecting the power cylinder to the movable blade, the lever being pivotally mounted upon the frame to provide oppositely extending lever portions, one pivotally connected to the movable blade and the other pivotally connected to the ram of the power cylinder, a roller journal mounted upon brackets to extend across the frame with the brackets selectively adjustably movable to position the roller, and springs for yieldably urging the movable blade against the roller. The power cylinder is controlled by a linkage and lever mechanism which moves the control member of a valve in response to the movement of a foot pedal as well as the movement of the lever which drivingly connects the power cylinder to the movable blade.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: November 2, 1976
    Inventor: Charles Kuchyt