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Title:
CUTTING DEVICE FOR STEEL MATERIAL
Document Type and Number:
Japanese Patent JP3414258
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a cutting device to bring a weld H-shaped steel with a hole type cutter during cutting conveyance into contact with a hole type cutter and prevent provision of a decreased life for the cutter and the occurrence of a flaw to a steel surface.
SOLUTION: This cutting device comprises a fixed blade 16 having a hole type cutter 16a through which a flange of an H-shape steel 11 passes in a horizontal plane and a hole type cutter 17a in the same shape; and a moving blade 17 movable in an oblique downward direction crossing a conveyance direction and arranged in juxtaposition with the fixed blade 16. Two sets of guide rollers 24 and 25 are arranged in a position, further approaching the H-shape steel 11 than the cutting edge of the hole type cutter 17a in a manner to make contact with both the lower flange outer surface of an H-shape steel 11 and a web plane on the side, spaced away from the moving blade 17 through movement during cutting, and guide rollers 24 and 25 are arranged in a position to further approach the H-shape steel 11 than the cutting edge of the hole type cutter 16a of the fixed blade 16 in a manner to make contact with a web plane on the spaced-away side. Contact between the H-shape steel 11 and the fixed blade 16 and between the moving blade 17 and the hole type cutter 16a is prevented from occurring.


Inventors:
Moriyuki Kakihara
Kazunori Kato
Application Number:
JP14002798A
Publication Date:
June 09, 2003
Filing Date:
May 21, 1998
Export Citation:
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Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
B23D23/00; B23D33/02; B23D35/00; (IPC1-7): B23D33/02; B23D23/00; B23D35/00
Domestic Patent References:
JP6155146A
JP8318425A
JP11285916A
JP4987935U
JP6120216U
JP6094418U
Attorney, Agent or Firm:
Shoichi Hirose