Patents Assigned to Sumimoto Metal Industries, Ltd.
  • Patent number: 4823577
    Abstract: Disclosed is a method and apparatus for feeding a material to a hot forging machine in a forging line in which a coiled material is uncoiled, straightened, fed intermittently by pinch rollers through a heating device, cut by a cutting device and then fed into a hot forging machine. The method has the steps of preparing a driving device which drives the pinch rollers mechanically independently from the hot forging machine; picking up the timing of forging conducted by the hot forging machine as an electric signal, and controlling the driving device in accordance with the electric signal.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: April 25, 1989
    Assignees: Sumimoto Metal Industries, Ltd., Sumitomo Heavy Industries, Ltd.
    Inventors: Yoshio Kawashima, Shunji Ogata, Masaaki Yokoyama, Masato Tomiku, Tsuneo Yamada, Tsutomu Kuno, Hisao Murakami, Hiroyuki Morimoto, Toyoshige Myojo, Kozo Watanabe, Toshihiro Tanaka