JPS57199511A - Control method for loop of rolling mill - Google Patents
Control method for loop of rolling millInfo
- Publication number
- JPS57199511A JPS57199511A JP56082757A JP8275781A JPS57199511A JP S57199511 A JPS57199511 A JP S57199511A JP 56082757 A JP56082757 A JP 56082757A JP 8275781 A JP8275781 A JP 8275781A JP S57199511 A JPS57199511 A JP S57199511A
- Authority
- JP
- Japan
- Prior art keywords
- loop
- value
- speed
- deviation
- current
- 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
- B21B37/48—Tension control; Compression control
- B21B37/50—Tension control; Compression control by looper control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE:To maintain the quality of machines and materials well by correcting the speeds of rolling mills at constant limited acceleration or deceleration rates when the deviation between a reference loop value and a current loop value is large. CONSTITUTION:Rolling stands controlled by speed controllers 5, 6 are rotated by the speed given by reference speed devices 7, 8, whereby a material is fed in an arrow A direction. The current value of a loop is detected with a loop detector 9 and the differential signal from the reference loop signal set in a reference loop device 10 is applied to a loop controller 11. The controller 11 integrates the differential signal proportionally, and applies the same as a correction value to the reference speed signal of the device 7 of the stand 1, thereby controlling the loop. If at this time the deviation between the reference loop and the current loop value is large, the speed of the rolling mills is corrected at constant limited acceleration or deceleration rates by a loop deviation limiting circuit 12, whereby the abrupt acceleration or deceleration is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56082757A JPS57199511A (en) | 1981-05-30 | 1981-05-30 | Control method for loop of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56082757A JPS57199511A (en) | 1981-05-30 | 1981-05-30 | Control method for loop of rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57199511A true JPS57199511A (en) | 1982-12-07 |
Family
ID=13783309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56082757A Pending JPS57199511A (en) | 1981-05-30 | 1981-05-30 | Control method for loop of rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57199511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7051890B2 (en) | 2002-03-27 | 2006-05-30 | Yoshino Kogyosho Co., Ltd. | Synthetic resin bottle with circumferential ribs for increased surface rigidity |
-
1981
- 1981-05-30 JP JP56082757A patent/JPS57199511A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7051890B2 (en) | 2002-03-27 | 2006-05-30 | Yoshino Kogyosho Co., Ltd. | Synthetic resin bottle with circumferential ribs for increased surface rigidity |
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