GB1125687A - Rolling mill control system - Google Patents

Rolling mill control system

Info

Publication number
GB1125687A
GB1125687A GB23142/67A GB2314267A GB1125687A GB 1125687 A GB1125687 A GB 1125687A GB 23142/67 A GB23142/67 A GB 23142/67A GB 2314267 A GB2314267 A GB 2314267A GB 1125687 A GB1125687 A GB 1125687A
Authority
GB
United Kingdom
Prior art keywords
wedge
spacing
rolls
computer
strip
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
Application number
GB23142/67A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Dynamics Corp
Original Assignee
General Dynamics Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by General Dynamics Corp filed Critical General Dynamics Corp
Publication of GB1125687A publication Critical patent/GB1125687A/en
Expired legal-status Critical Current

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
    • B21B37/58—Roll-force control; Roll-gap 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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/30—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by wedges or their equivalent

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

1,125,687. Electric control systems. GENERAL DYNAMICS CORP. May 18, 1967 [May 20, 1966], No. 23142/67. Heading G1N. [Also in Divisions B3 and G4] In the production of a longitudinally tapered strip in a rolling mill, the spacing between the rollers 11, 12, Fig. 1 is continually adjusted during a run by movement of wedge 18 into the gap between a backing roller 13 and a fixed wedge 19, under the control of a hydraulic ram 17. For larger adjustments of the spacing between runs a conventional screw-down arrangement 21 is provided. The ram 17 is controlled by an error signal from an amplifier 36 indicative of the difference between the actual position of the wedge 18, obtained from potentiometer 37, and the required position to produce the required spacing of rolls 11, 12. The required position of the wedge is obtained by multiplying a signal indicative of the required taper (change in thickness per unit length), from computer 22 (see Division G4), with a signal indicative of the instantaneous position of the rolls 11, 12 along the strip, obtained from a pulse tachometer 25, counter 24 and digital-to-analogue converter 23, in which the multiplication also occurs. To compensate for, e. g. changes in the roll diameters, the output from the computer 22 is fed to an adjustable potentiometer 31. To compensate for non-linearity between the position of the wedge and spacing of the rolls 11, 12, the computer 22 may be modified to take into account deflecting forces acting on the frame 10 which produce the non-linearity. In operation, when the strip has left the rollers, a force detector 38 senses the resulting reduction in force and transmits a signal to energize relay 33 connecting a clock 41 to the counter 24 which causes the wedge to be driven to the end of its stroke in preparation for the next run.
GB23142/67A 1966-05-20 1967-05-18 Rolling mill control system Expired GB1125687A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55164066A 1966-05-20 1966-05-20

Publications (1)

Publication Number Publication Date
GB1125687A true GB1125687A (en) 1968-08-28

Family

ID=24202091

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23142/67A Expired GB1125687A (en) 1966-05-20 1967-05-18 Rolling mill control system

Country Status (3)

Country Link
US (1) US3436943A (en)
DE (1) DE1602077A1 (en)
GB (1) GB1125687A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1316959A (en) * 1969-09-26 1973-05-16 Davy & United Eng Co Ltd Slab rolling
GB1571782A (en) * 1978-05-26 1980-07-16 Hille Eng Co Ltd Taper rolling of metal
US4248072A (en) * 1978-07-25 1981-02-03 Aichi Steel Works, Limited Method of and apparatus for producing plate material having uniform width and lengthwise thickness variation
US4295353A (en) * 1979-09-24 1981-10-20 Anisimov Vyacheslav I Mill stand for forming discontinuous longitudinal deformations in sheet metal
CN111344088B (en) * 2017-09-22 2022-04-26 纽科尔公司 Iterative learning control for periodic disturbances in twin roll strip casting with measurement delay

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2687052A (en) * 1951-09-18 1954-08-24 Hydropress Inc Apparatus for controlling the rolling of tapered sheets
US2655823A (en) * 1952-01-11 1953-10-20 Hydropress Inc Metal forming
US3081652A (en) * 1955-11-30 1963-03-19 Westinghouse Electric Corp Taper rolling mill control
US3081653A (en) * 1957-11-22 1963-03-19 Westinghouse Electric Corp Strip thickness control apparatus

Also Published As

Publication number Publication date
US3436943A (en) 1969-04-08
DE1602077A1 (en) 1970-02-19

Similar Documents

Publication Publication Date Title
GB1248978A (en) Predictive roll-force gauge control method and apparatus for metal rolling mills
GB1142041A (en) Slave gauge control system for a rolling mill
GB1204335A (en) Rolling mills
GB1209030A (en) Gauge control method for rolling mills and like apparatus
GB892058A (en) Improvements in or relating to rolling mills
GB1465792A (en) Method of and apparatus for controlling strip flatness during the cold-rolling of strip material
GB1125687A (en) Rolling mill control system
GB1270246A (en) Improvements in or relating to rolling
GB1326157A (en) Control of strip tension in rolling mills
GB1128549A (en) Rolling mill system
GB1269267A (en) Controlling the rolling of metal strip
GB1307823A (en) Rolling of strip or plate material
GB1346878A (en) Rollmill control system
GB1270670A (en) Rolling sheet or strip from particulate material
GB1072866A (en) Rolling mill control apparatus
GB1020775A (en) Improvements in rolling mills
GB1218572A (en) Rolling mills
ES389002A1 (en) Method and apparatus for controlling continuous tandem rolling mills
ES419116A1 (en) Gage control method and system for tandem rolling mills
GB1270788A (en) Improvements in or relating to cold rolling stands
GB1243806A (en) Apparatus for controlling a rolling mill
GB1224650A (en) Improvements in the regulating of rolled stock for constant cross-section
ES395948A1 (en) Gauge control method and apparatus for metal rolling mills
GB1145836A (en) Improvements in or relating to the rolling of strip
GB1292310A (en) Tandem rolling mill