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Patent Searching and Data


Title:
METHOD FOR CONTROLLING INCLINING TYPE DRILLING MACHINE IN ON-LINE
Document Type and Number:
Japanese Patent JPH05138212
Kind Code:
A
Abstract:

PURPOSE: To provide an on-line control method for an inclining type piercer.

CONSTITUTION: At the time of piercing a material to be rolled by an inclining type piercer arranging one pair of disk shoes 4, 4 at both sides of rolling range formed with one pair of rolling rolls 1, 1, motor power PM of a driving motor 6 for the rolling roll, detecting signal N of a detector 12 for the number of revolutions of the rolling roll driving motor and detecting signal of a detector 13 for the number of revolutions of the disk shoe driving motor 5 are inputted in an on-line controller 10. Further, a diameter DD of the disk shoe diameter D1 of the material to be rolled, the aimed diameter D1 and thickness t of a hollow preform after rolling and kind of steel (k) of the material to be rolled are inputted through a manual setter 11 to calculate an advancing velocity VH of the material to be rolled. Successively, the number of revolutions N, of the disk shoe is obtd. and by commanding this ND to the driving motor 5 for disk shoe, the peripheral velocity of the disk shoe can be controlled so as to synchronize with the advanced velocity of the material to be rolled.


Inventors:
KASAHARA HIROJI
Application Number:
JP30360191A
Publication Date:
June 01, 1993
Filing Date:
November 19, 1991
Export Citation:
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Assignee:
KAWASAKI STEEL CO
International Classes:
B21B19/04; B21B37/00; B21B37/78; (IPC1-7): B21B19/04; B21B37/00