GB1156658A - Rolling Mill - Google Patents

Rolling Mill

Info

Publication number
GB1156658A
GB1156658A GB0592/66A GB159266A GB1156658A GB 1156658 A GB1156658 A GB 1156658A GB 0592/66 A GB0592/66 A GB 0592/66A GB 159266 A GB159266 A GB 159266A GB 1156658 A GB1156658 A GB 1156658A
Authority
GB
United Kingdom
Prior art keywords
spacers
prestressing
gauge
rolling
load
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
GB0592/66A
Inventor
Raymond Bernard Sims
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0592/66A priority Critical patent/GB1156658A/en
Priority to US574440A priority patent/US3533255A/en
Priority to FR74058A priority patent/FR1490836A/en
Priority to DE19661527697 priority patent/DE1527697A1/en
Publication of GB1156658A publication Critical patent/GB1156658A/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
    • B21B37/64—Mill spring or roll spring compensation systems, e.g. control of prestressed mill stands

Landscapes

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

Abstract

1,156,658. Rolling. R. B. SIMS. 19 Aug., 1966 [24 Aug., 1965; 13 Jan., 1966], Nos. 36190/65 and 1592/66. Heading B3M. [Also in Division G3] A rolling mill includes a pair of roll assemblies which are separated by spacers and urged together by a constant prestressing force, the spacers being automatically adjusted to provide a constant roll gap. The spacers 7 are threaded into an upper chock 3 at each side of the mill, and bear against a lower chock 2. Rotation of the spacers by means of motor-driven gear 11 adjusts the spacing between the chocks 2 and 3, and hence the roll gap. The pressure of the prestressing fluid is automatically maintained constant during rolling by means of an adjustable relief valve 27, the pressure being controlled such that the load on the spacers 7 is held at the middle of their permissible load range. A prestressing cylinder 6 is provided with hydraulic pressure fluid from either a low pressure pump 20 and associated accumulator 23, or from a high pressure pump 26 and accumulator 28. The high pressure fluid is supplied when a workpiece is sensed as being present between the rolls by means of rolling load sensors 18. An amplifier 25, which is responsive to the outputs of the sensors operates switches 22A, 24 and 27 which determine whether high or low pressure fluid is supplied. To control the mill, the prestressing pressure is measured by a gauge 30, the difference between prestressing and rolling loads by sensors 18, and of the position of the screws by sensors 19. Using these values, plus a desired gauge roll gap value set at 35, an amplifier 36 provides an output corresponding to the gauge error. The output is used to control a motor 14 to vary the spacer settings. The values of gauge error, mill speed and load on the spacers, are fed to a control system (Fig. 2, not shown) where the values are compared with reference values. Thus the prestressing pressure is arranged to be varied only when the mill speed is greater than a predetermined figure and when the gauge error is less than a predetermined value. When these conditions do not apply the gauge control system using the spacers is disabled, and the spacers are adjusted to bring the load on the spacers within the specified range.
GB0592/66A 1965-08-24 1965-08-24 Rolling Mill Expired GB1156658A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB0592/66A GB1156658A (en) 1965-08-24 1965-08-24 Rolling Mill
US574440A US3533255A (en) 1965-08-24 1966-08-23 Rolling mill
FR74058A FR1490836A (en) 1965-08-24 1966-08-24 Reduced weight rolling mill to achieve constant rolling thickness
DE19661527697 DE1527697A1 (en) 1965-08-24 1966-08-24 Rolling mill

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0592/66A GB1156658A (en) 1965-08-24 1965-08-24 Rolling Mill
GB3619065 1965-08-24

Publications (1)

Publication Number Publication Date
GB1156658A true GB1156658A (en) 1969-07-02

Family

ID=26236848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0592/66A Expired GB1156658A (en) 1965-08-24 1965-08-24 Rolling Mill

Country Status (3)

Country Link
US (1) US3533255A (en)
DE (1) DE1527697A1 (en)
GB (1) GB1156658A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4740952B1 (en) * 1969-11-18 1972-10-17
DE2108783C3 (en) * 1971-02-24 1975-12-04 Nowosibirskij Metallurgitscheskij Sawod Imeni A.N. Kusmina, Nowosibirsk (Sowjetunion) Device for the automatic control of the thickness of flat rolled material
DE2111608A1 (en) * 1971-03-11 1972-09-14 Ishikawajima Harima Heavy Ind Control device for a hydraulic rolling mill
DE3942452A1 (en) * 1989-12-22 1991-06-27 Schloemann Siemag Ag DETERMINATION OF THE SPRING CHARACTERISTIC OF A PRE-AND FINISHED FRAME

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024679A (en) * 1957-07-01 1962-03-13 Thomas A Fox Skin pass mills and methods of rolling
FR85591E (en) * 1963-04-10 1965-12-10
US3247697A (en) * 1962-12-06 1966-04-26 Blaw Knox Co Strip rolling mill

Also Published As

Publication number Publication date
DE1527697A1 (en) 1970-01-22
US3533255A (en) 1970-10-13

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