With Use Of Means To Displace Work Laterally Into Next Pass Patents (Class 72/222)
  • Patent number: 4936124
    Abstract: A roll forging machine includes an automatic stock feed which receives the stock in a receptacle from a conveyor and then swings the stock to a horizontal feed position after sensing the temperature of the stock. If the stock temperature is insufficient for proper forging the receptacle swings to a dump position to return the stock to a furnace. If the stock temperature is sufficient the receptacle in the horizontal position is indexed into the forging rolls and to place the stock into a stock gripper of a transfer. The stock gripper is mounted on a grip slide for movement in the "X" direction aligned with the direction of the roll passes. The grip slide is in turn mounted on a carriage for movement in the "Y" direction transverse the direction of the roll passes. Both the grip slide and the carriage are driven electrically by respective servomotors in turn driving timing belts to which the carriage and grip slide are clamped.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: June 26, 1990
    Assignee: The Ajax Manufacturing Co.
    Inventor: Mike B. Martincic
  • Patent number: 4893492
    Abstract: A roll forging machine includes an automatic stock feed which receives the stock in a receptacle from a conveyor and then swings the stock to a horizontal feed position after sensing the temperature of the stock. If the stock temperature is insufficient for proper forging the receptacle swings to a dump position to return the stock to a furnace. If the stock temperature is sufficient the receptacle in the horizontal position is indexed into the forging rolls and to place the stock into a stock gripper of a transfer. The stock gripper is mounted on a grip slide for movement in the "X" direction aligned with the direction of the roll passes. The grip slide is in turn mounted on a carriage for movement in the "Y" direction transverse the direction of the roll passes. Both the grip slide and the carriage are driven electrically by respective servomotors in turn driving timing belts to which the carriage and grip slide are clamped.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: January 16, 1990
    Assignee: Ajax Manufacturing Co.
    Inventor: Mike B. Martincic
  • Patent number: 4503699
    Abstract: The rail is rolled by the steps of breakdown rolling, reforming rolling, first and second universal rolling, head-wheel rolling and base-wheel rolling in that order. The reforming rolling is performed using a pair of horizontal rolls provided with a reforming pass and a head-wheel pass and a vertical roll adapted to reduce the base of the rail, with the paired horizontal rolls, together with said vertical roll, shifted and set in such a position where the reforming pass matches the pass line of the first universal rolling pass. The head-wheel rolling is performed using the same paired horizontal rolls and a vertical roll adapted to reduce the head of the rail, with the paired horizontal rolls, together with said vertical roll, shifted and set in such a position where the head-wheel pass matches the pass line of the second universal rolling pass.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: March 12, 1985
    Assignee: Nippon Steel Corporation
    Inventors: Kanichi Kishikawa, Taneharu Nishino, Seiichi Nagasoe
  • Patent number: 4400962
    Abstract: The set of horizontal rolls or the set of horizontal and vertical rolls of a universal stand, especially a finishing stand for universal rolling of rails or like sections has, in addition to the finishing grooves, grooves other than universal or finishing grooves, preferably edging grooves.
    Type: Grant
    Filed: September 10, 1981
    Date of Patent: August 30, 1983
    Assignee: Sacilor Acieries et Laminoirs de Lorraine
    Inventor: Jacques M. Michaux
  • Patent number: 4370877
    Abstract: Rolling mill rolls having open grooves comprising active and relatively non-active portions are provided wherein at least two such grooves are overlapped by their relatively non-active portions. Also disclosed are processes for feeding such rolls, a stand connecting such rolls and a universal rolling mill having stands incorporating such rolls.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: February 1, 1983
    Assignee: Sacilor-Acieries et Laminoirs de Lorraine
    Inventor: Jacques M. Michaux
  • Patent number: 4178789
    Abstract: A pierced billet is fed through a plug rolling mill, equipped with a plurality of grooves. Initial rolling is effected in conventional manner, i.e. the shell is (i) rammed over a forming plug mounted on the front end of a mandrel, (ii) drawn over the plug by the work rolls, (iii) removed from the mandrel and (iv) returned to the entering side of the mill. Rather than effecting a second pass on the shell in the same roll groove, the shell is transferred to an adjacent receiving trough, aligned with a second groove of the same work roll. A second shell is then placed on the trough aligned with the first roll groove, thereafter the first shell is given a second pass in conjunction with the first pass of the next shell. Because of the use of more than one groove for subsequent passes, each roll pass can be contoured to suit the reduction desired.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: December 18, 1979
    Assignee: United States Steel Corporation
    Inventor: James W. Ruff
  • Patent number: 4171633
    Abstract: A device for gripping and guiding a bar of material into the nip of the rolls of a rolling mill. At least two opposed guide rollers are moveably mounted on an appropriate support, such as a gripping arm of a manipulator head for a rolling mill. The guide rollers are moveable towards one another into a gripping position for gripping the edges of a bar of material being introduced into the rolling mill nip. The guide rollers are moveable away from one another and out of engagement with the bar of material. A bar is readily gripped by the opposed rollers and is quite free to be advanced into the roller nip since the guide rollers are free to rotate. One or more rollers may include a ratchet to prevent rotation in the opposite direction such that any tendency of a bar of material to be thrown back out of the roll nip will be resisted.
    Type: Grant
    Filed: April 19, 1977
    Date of Patent: October 23, 1979
    Assignee: Stiftelsen for Metallurgisk Forskning
    Inventor: Carl Sebardt