JPS5653810A - Controller for motor driven looper - Google Patents
Controller for motor driven looperInfo
- Publication number
- JPS5653810A JPS5653810A JP13040779A JP13040779A JPS5653810A JP S5653810 A JPS5653810 A JP S5653810A JP 13040779 A JP13040779 A JP 13040779A JP 13040779 A JP13040779 A JP 13040779A JP S5653810 A JPS5653810 A JP S5653810A
- Authority
- JP
- Japan
- Prior art keywords
- control system
- looper
- loop
- amount
- stands
- 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.)
- Granted
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
- B21B37/48—Tension control; Compression control
- B21B37/50—Tension control; Compression control by looper control
-
- 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
- B21B37/007—Control for preventing or reducing vibration, chatter or chatter marks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE:To eliminate the influence of the mechanical vibration, and to perform the stable control without causing the tension fluctuation, by adding a circuit to the control system of the motor driven looper in order to send the differential signal of the speed of the looper motor as the positive feedback with a specified gain back to the electric current control system. CONSTITUTION:At controlling the amount of the loop in the hot strip continuous rolling mill, the amount of loop between the stands 1a, 1b, respectively on the feed- in side and the run-out side in the mill, is maintained constant by the loop amount control system for controlling the loop amount through the speeds Vn, Vn+1, of the stands 1a, 1b. On the other hand, the tension between the stands 1a, 1b, is maintained constant by the electric current control system of the motor driven looper. To this control system, the differential circuit 11 for the looper angle signal N is added; hereby, the differential signal of the looper angle detector 7 is inputted to the multiplier 12 of the gain KN, and is sent back to the electric current controller 8 as the positive feedback. By the present method, even if there is a mechanical vibration, an effect, similar to that obtained by reducing the moment of inertia of the lopper, can be obtained, and the loop amount control system with the quick responsiveness can be realized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13040779A JPS5653810A (en) | 1979-10-09 | 1979-10-09 | Controller for motor driven looper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13040779A JPS5653810A (en) | 1979-10-09 | 1979-10-09 | Controller for motor driven looper |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5653810A true JPS5653810A (en) | 1981-05-13 |
JPS619884B2 JPS619884B2 (en) | 1986-03-26 |
Family
ID=15033534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13040779A Granted JPS5653810A (en) | 1979-10-09 | 1979-10-09 | Controller for motor driven looper |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5653810A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112742878A (en) * | 2021-02-01 | 2021-05-04 | 燕山大学 | Anti-disturbance control method for vertical pressing system of rolling mill under typical working condition |
-
1979
- 1979-10-09 JP JP13040779A patent/JPS5653810A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112742878A (en) * | 2021-02-01 | 2021-05-04 | 燕山大学 | Anti-disturbance control method for vertical pressing system of rolling mill under typical working condition |
Also Published As
Publication number | Publication date |
---|---|
JPS619884B2 (en) | 1986-03-26 |
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