JPS5750207A - Controlling method for timing control in controlling roll bending - Google Patents
Controlling method for timing control in controlling roll bendingInfo
- Publication number
- JPS5750207A JPS5750207A JP55125616A JP12561680A JPS5750207A JP S5750207 A JPS5750207 A JP S5750207A JP 55125616 A JP55125616 A JP 55125616A JP 12561680 A JP12561680 A JP 12561680A JP S5750207 A JPS5750207 A JP S5750207A
- Authority
- JP
- Japan
- Prior art keywords
- stand
- inputted
- signal
- counter
- steel sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2273/00—Path parameters
- B21B2273/06—Threading
- B21B2273/08—Threading-in or before threading-in
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To improve the yield of a steel sheet and its threadability, by automatically controlling the roll bending action at a point of time wherein the tip of a steel sheet is bitten by a rolling stand concerned.
CONSTITUTION: A detecting signal of a bite detector 4 installed in a former stand 2 of a tandem mill, and a signal of a pulse generator 6 installed in work rolls 5, 5 of the stand 2, are inputted to a counter 7. The counter 7 counts the pulse signal from a point of time wherein a detecting signal is inputted, and the output of the counter 7 is inputted to a comparator 12. The comparator 12 compares the inputted count value with a distance (distance between the stands 1, 2) presetted in a distance setter 13; when these compared values become equal, an equivalent signal is inputted to a bending changeover valve 10, and hereby, the bending action for a latter stand 1 is controlled. As a result, the bending control for the stand 1 is performed at a point of time wherein the tip of the steel sheet 3 is bitten by the stand 1.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55125616A JPS5750207A (en) | 1980-09-09 | 1980-09-09 | Controlling method for timing control in controlling roll bending |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55125616A JPS5750207A (en) | 1980-09-09 | 1980-09-09 | Controlling method for timing control in controlling roll bending |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5750207A true JPS5750207A (en) | 1982-03-24 |
Family
ID=14914483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55125616A Pending JPS5750207A (en) | 1980-09-09 | 1980-09-09 | Controlling method for timing control in controlling roll bending |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5750207A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010120046A (en) * | 2008-11-19 | 2010-06-03 | Nippon Steel Corp | Plate rolling method |
EP4029618A1 (en) * | 2021-01-18 | 2022-07-20 | Primetals Technologies Germany GmbH | Rolling with minimization of collapse of bending force in tapping |
-
1980
- 1980-09-09 JP JP55125616A patent/JPS5750207A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010120046A (en) * | 2008-11-19 | 2010-06-03 | Nippon Steel Corp | Plate rolling method |
EP4029618A1 (en) * | 2021-01-18 | 2022-07-20 | Primetals Technologies Germany GmbH | Rolling with minimization of collapse of bending force in tapping |
WO2022152781A1 (en) | 2021-01-18 | 2022-07-21 | Primetals Technologies Germany Gmbh | Rolling with minimisation of a drop in the bending force upon entry |
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