Interstand tension controller for a continuous rolling mill
US5660066A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1994 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Oct 5, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B37/50
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An interstand tension controller for a continuous rolling mill having a plurality of rolling stands and provided with a looper between the adjacent rolling stands controls two controlled variables, i.e., the interstand tension of the workpiece and the looping angle of the looper, to adjust the measured interstand tension and the measured looping angle to desired values, has control loops that control the rotating speed of the rolls of the rolling stand and the looping torque or the looping speed of the looper to regulate the interstand tension and the looping angle, estimates disturbances acting on the control loops, the variation of the characteristics of the controlled system and the interference between the control loops, and operates manipulated variables to offset the disturbances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.