Title:
DEVICE FOR DETECTING SLIP IN INCLINED ROLLING MILL HAVING DISK ROLL
Document Type and Number:
Japanese Patent JP3785930
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To accurately detect the generation of end-blocking deemed undetectable.
SOLUTION: A device for detecting a slip is provided with: a detecting means 14 for a driving torque current of the main roll of a piercer, a detecting means 18 for a driving torque current of a disk roll 15, and a master controller judging the generation of end-blocking when the driving torque current of the disk roll 15 increases exceeding a certain value after the detection signals from both detecting means 14 and 18 are input and load relay signals from the driving torque current of the main roll are cut off. Thereby, the generation of end- blocking can be accurately detected and the seizure of the master roll and the disk roll can be previously prevented owing to the detection. Besides, the generation of larger troubles can be previously prevented.
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Inventors:
Noboru Ishihara
Shunji Fukushima
Shunji Fukushima
Application Number:
JP2000390486A
Publication Date:
June 14, 2006
Filing Date:
December 22, 2000
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
B21B19/04; B21C51/00; (IPC1-7): B21C51/00; B21B19/04
Domestic Patent References:
| JP471709A | ||||
| JP4135002A |
Attorney, Agent or Firm:
Mizogami Mitsuyoshi
Tetsuya Mizogami
Yoshinori Iwahara
Tetsuya Mizogami
Yoshinori Iwahara