GB1391475A - Cutting control system and method in rolling mills - Google Patents
Cutting control system and method in rolling millsInfo
- Publication number
- GB1391475A GB1391475A GB1711472A GB1711472A GB1391475A GB 1391475 A GB1391475 A GB 1391475A GB 1711472 A GB1711472 A GB 1711472A GB 1711472 A GB1711472 A GB 1711472A GB 1391475 A GB1391475 A GB 1391475A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cut
- billet
- mill
- length
- bloom
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D36/00—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut
- B23D36/0008—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices
- B23D36/0033—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length
- B23D36/0041—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length the tool moving continuously
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
1391475 Controlling shearing BRITISH STEEL CORP 12 July 1973 [13 April 1972] 17114/72 Heading B3 A system for controlling the operation of cutting means 15 downstream of a rolling mill 10 for cutting a rolled elongate workpiece 13 comprises a comparator 23 for producing, from data proportional to the speed of travel of a workpiece on the upstream and downstream sides of the mill, an elongation factor, data storage means for storing the factor and a computer 30 which has access to the elongation factor and data inputs relating to one length of a further workpiece to be rolled in the mill and to the permissible lengths into which it may be cut and which produces an output signal to the cutting means to control the lengths into which the further workpiece is cut. The passage of the trailing end of a bloom 13 past a photo-cell 20 actuates a pulse generator 22 connected to a billet-measuring roll 14. The pulses generated during travel of the trailing end over a known distance between photo-cell 20 and a photo-cell 21 are fed to the comparator 23. The elongation factor produced is stored for use when a bloom of similar dimensions is to be rolled and cut and may be recalculated and corrected if necessary during the rolling of the further bloom. The length of an incoming bloom is measured before it enters the mill by, e.g. photo-cells 29 and the measurement fed to the computer which has access to a previouslyderived elongation factor and thus can calculate the rolled billet length. The computer is supplied from input 3, with information necessary to ascertain the lengths into which the billet should be cut to minimize waste and signals these lengths to a cut-to-length logic unit 32 of the shear. The operator may feed into input 31 his estimate of the cutting instructions for the unit 32 and adjust it if necessary after checking its accuracy on read-out means. A motor 35 driving the measuring roll 14 is actuated when the leading end of a billet leaves the mill 10 and a pulse generator 36 feeds data on the length of billet passing the roll to the cutter control unit 32.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1711472A GB1391475A (en) | 1972-04-13 | 1972-04-13 | Cutting control system and method in rolling mills |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1711472A GB1391475A (en) | 1972-04-13 | 1972-04-13 | Cutting control system and method in rolling mills |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1391475A true GB1391475A (en) | 1975-04-23 |
Family
ID=10089503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1711472A Expired GB1391475A (en) | 1972-04-13 | 1972-04-13 | Cutting control system and method in rolling mills |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1391475A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2120154A (en) * | 1982-04-28 | 1983-11-30 | Elhaus Friedrich W | Shearing method and apparatus |
GB2176141A (en) * | 1985-06-04 | 1986-12-17 | Mitsubishi Electric Corp | System for controlling bar cutter in steel bar line |
US6698266B2 (en) * | 2001-03-20 | 2004-03-02 | General Electric Company | System and method for optimizing mill cuts |
CN114147196A (en) * | 2021-12-09 | 2022-03-08 | 宝钢湛江钢铁有限公司 | Method for cutting medium plate blank with fast rhythm |
CN114746196A (en) * | 2020-05-22 | 2022-07-12 | 东芝三菱电机产业系统株式会社 | Cutting position control device |
-
1972
- 1972-04-13 GB GB1711472A patent/GB1391475A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2120154A (en) * | 1982-04-28 | 1983-11-30 | Elhaus Friedrich W | Shearing method and apparatus |
GB2176141A (en) * | 1985-06-04 | 1986-12-17 | Mitsubishi Electric Corp | System for controlling bar cutter in steel bar line |
US4724696A (en) * | 1985-06-04 | 1988-02-16 | Mitsubishi Denki Kabushiki Kaisha | System for controlling bar cutter in steel bar line |
AU570361B2 (en) * | 1985-06-04 | 1988-03-10 | Mitsubishi Denki Kabushiki Kaisha | Controlling cutter in steel bar line |
US6698266B2 (en) * | 2001-03-20 | 2004-03-02 | General Electric Company | System and method for optimizing mill cuts |
CN114746196A (en) * | 2020-05-22 | 2022-07-12 | 东芝三菱电机产业系统株式会社 | Cutting position control device |
CN114147196A (en) * | 2021-12-09 | 2022-03-08 | 宝钢湛江钢铁有限公司 | Method for cutting medium plate blank with fast rhythm |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2851911A (en) | Rolling mills | |
GB1598849A (en) | Shearing of rapidly moving roller stock | |
GB1258768A (en) | ||
GB1391475A (en) | Cutting control system and method in rolling mills | |
US3553992A (en) | System for automatically decelerating rolling mills | |
GB1209030A (en) | Gauge control method for rolling mills and like apparatus | |
US3584853A (en) | Tracking system for strip processing lines | |
US3750437A (en) | Method and apparatus for controlling continuous tandem rolling mills | |
US4548063A (en) | Tension control in a metal rolling mill | |
JP3395873B2 (en) | Coarse cut control device in strip steel rolling equipment | |
EP0137303B1 (en) | Method of continuously detecting the partial rolling length in a continuous rolling mill, and device for performing the method | |
JP2781860B2 (en) | How to cut steel bars | |
GB1010276A (en) | A system for determining the length of metal remaining to be rolled in a reversing hot metal mill | |
JPH0550113A (en) | Detecting device for cutting position of crop length | |
US3386321A (en) | Automatic control system for hot strip mill crop shear | |
SU1016665A1 (en) | Device for measuring rolled stock length | |
GB1292310A (en) | Tandem rolling mill | |
SU489596A1 (en) | Device for rolling mill for cutting with flying scissors | |
SU602319A1 (en) | Device for controlling rolled stock cutting mechanism | |
SU149376A1 (en) | Blooming machine for rolling blooms and slabs | |
GB1163059A (en) | A Method of and an Apparatus for Determining and Correcting Slipping in a Reversing Rolling Mill. | |
GB1236973A (en) | Method and apparatus for automatically controlling the shearing of metal plates using supersonic flaw detection | |
SU1228978A1 (en) | Apparatus for automatic control of flying shears for cutting leading ends of rolled stock | |
SU932203A1 (en) | Device for measuring rolled stock blank length | |
JPS58109219A (en) | Dividing shear control device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |