JPS55100811A - Control unit for sheet breadth - Google Patents
Control unit for sheet breadthInfo
- Publication number
- JPS55100811A JPS55100811A JP856079A JP856079A JPS55100811A JP S55100811 A JPS55100811 A JP S55100811A JP 856079 A JP856079 A JP 856079A JP 856079 A JP856079 A JP 856079A JP S55100811 A JPS55100811 A JP S55100811A
- Authority
- JP
- Japan
- Prior art keywords
- tension
- breadth
- rotational speed
- operates
- operator
- 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
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/22—Lateral spread control; Width control, e.g. by edge rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To make possible the control of sheet breadth with high accuracy and fast response, by operating the corrective amount for the interstand tension required for absorbing the error of breadth on the exit side of the continuous rolling stand of the rolling mill, and by adjusting the rotational speed of the roll for controlling above stated interstand tension to the aim value.
CONSTITUTION: The roll gap of the edger in front of the stand 1a is operated from the aim sheet breadth and other rolling conditions, and is preset by the setters 4, 5. The tension operator 9 operates the tension T between the reducing rolls 1a, 1b, from the rolling load F detected by the load cell 7, the rotational speed N of the motor 8, and the driving current I. On the other hand, the breadth deviation operator 6 operates the difference ΔW between the detected breadth W and the reference breadth W*; then, the reference tension operator 10 operates the corrective amount ΔT for the tension, from these values and above stated tension T, according to the formula. This ΔT is inputted to the rotational speed operator 11, which then operates the corrective amount ΔN for the rotational speed. The rotational speed control unit 12 controls the motor 8 so as to make the corrective amount to be ΔN.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP856079A JPS55100811A (en) | 1979-01-26 | 1979-01-26 | Control unit for sheet breadth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP856079A JPS55100811A (en) | 1979-01-26 | 1979-01-26 | Control unit for sheet breadth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55100811A true JPS55100811A (en) | 1980-08-01 |
Family
ID=11696471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP856079A Pending JPS55100811A (en) | 1979-01-26 | 1979-01-26 | Control unit for sheet breadth |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55100811A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59150609A (en) * | 1983-02-17 | 1984-08-28 | Toshiba Corp | Sheet width controlling device in hot rolling installation |
| JPS59156512A (en) * | 1983-02-23 | 1984-09-05 | Kawasaki Steel Corp | Controlling method of width in hot strip rolling |
-
1979
- 1979-01-26 JP JP856079A patent/JPS55100811A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59150609A (en) * | 1983-02-17 | 1984-08-28 | Toshiba Corp | Sheet width controlling device in hot rolling installation |
| JPS59156512A (en) * | 1983-02-23 | 1984-09-05 | Kawasaki Steel Corp | Controlling method of width in hot strip rolling |
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