SU479276A3 - Device for automatic adjustment of the strip profile on a four-roll rolling mill - Google Patents

Device for automatic adjustment of the strip profile on a four-roll rolling mill

Info

Publication number
SU479276A3
SU479276A3 SU1312979A SU1312979A SU479276A3 SU 479276 A3 SU479276 A3 SU 479276A3 SU 1312979 A SU1312979 A SU 1312979A SU 1312979 A SU1312979 A SU 1312979A SU 479276 A3 SU479276 A3 SU 479276A3
Authority
SU
USSR - Soviet Union
Prior art keywords
rolling mill
automatic adjustment
strip
roll rolling
strip profile
Prior art date
Application number
SU1312979A
Other languages
Russian (ru)
Inventor
Джузеппе Сивилотти(Италия) Оливо
Вильям Джон Туле(Канада) Морис
Элфин Дейвис(Великобритания) Вильям
Original Assignee
Алкан Рисерч Энд Дивелопмент Лимитед (Фирма)
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 Алкан Рисерч Энд Дивелопмент Лимитед (Фирма) filed Critical Алкан Рисерч Энд Дивелопмент Лимитед (Фирма)
Application granted granted Critical
Publication of SU479276A3 publication Critical patent/SU479276A3/en

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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • 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
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering

Landscapes

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

Description

(54) УСТРОЙСТВО ДЛЯ АВТОМАТИЧЕСКОГО РЕГУЛИРОВАНИЯ(54) DEVICE FOR AUTOMATIC REGULATION

ПРОФИЛЯ полосы НА ЧЕТЫРЕХВАЛКОВОМPROFILE OF THE FOUR-ROLLER BAND

ПРОКАТНОМ СТАНЕROLLED MILL

с эталонным (заданным) сигналом. При изменении жесткости толщины поступающей в клети полосы давление металла на валки изменитс , на выходе преобразовательной схемы по витс  сигнал, который вызывает обработку возникшего возмущени  гидроцилнндрами изгиба рабочих и распора опорных валков. В случае нарушени  нлоскостности (равности) прокатываемой полосы из-за нагрева и износа , что фиксируетс  узлом контрол  плоскостности полосы, управл ющий сигнал этого блока подаетс  на вход блока управлени  приводами нажимных механизмов.with a reference (specified) signal. When the stiffness of the thickness of the strip entering the cage changes, the pressure of the metal on the rolls changes, and a signal appears at the output of the converter circuit that causes the working disturbance to be treated by the working rolls and spreading of the support rolls. In the event of violation of the flatness (equality) of the rolled strip due to heating and wear, which is fixed by the strip flatness control unit, the control signal of this unit is fed to the input of the drive control mechanism of the pressing mechanisms.

Таким образом, предлагаемое устройство позвол ет поддерживать толщину и плоскостность получаемого проката по двум каналам регулировани , а именно: быстродействующему каналу - по сигналам датчиков давлени  с воздействием на гидроцилиндры изгиба рабочих валков, и замедленному - по сигналам узла контрол  нлоскостности полосы с воздействием на нажимные винты.Thus, the proposed device allows maintaining the thickness and flatness of the rolled steel produced by two control channels, namely, the high-speed channel - by signals from pressure sensors with impact on the hydraulic cylinders of the work rolls bending, and slowed down - by signals from the control unit of the flatness of the strip with impact on pressure screws .

Предмет изобретени Subject invention

Устройство дл  автоматического регулировани  профил  полосы на четырехвалковом прокатном стане с нажимными механизмами, гидроцилиндрами распора опорных валков, установленными между подушками рабочих валков и между нодушками рабочих и опорных валков, включающее измерители нат жени  полосы, установленные по ее ширине и подключенные к узлу контрол  плоскостности полосы, соединенному через схему преобразовани  сигналов с гидроцилиндрами распора опорных валков и блоком управлени  приводами нажимных механизмов , отличающеес  тем, что, с целью повышени  точности регулировани , в него дополнительно введены датчик давлени  и элемент задержки, схема преобразовани  включает дифференциальный усилитель, двзхпозиционное реле и суммирующий усилитель, к одному входу которого подключен датчик давлени  прокатки, к другому - узел контрол  нлоскостности полосы, а выход суммирующего усилител  соединен с гидроцилиндрами изгиба рабочих валков, причем элемент задержки включен в цепь между узлом контрол  плоскостности полосы и суммирующим усилителем , измерители нат жени , расположенные у противоположных кромок полосы, соединеныA device for automatic adjustment of the strip profile on a four-roll rolling mill with pushing mechanisms, hydraulic cylinders spreading support rolls installed between work roll pillows and between workers and support roll nodules, including strip tension meters installed along its width, and connected to the strip flatness control node, connected through a signal conversion circuit with hydraulic cylinders spreading the back-up rolls and a control unit for driving the drives of the pressure mechanisms, characterized in that o, in order to increase the control accuracy, a pressure sensor and a delay element were additionally introduced into it, the conversion circuit includes a differential amplifier, a two-position relay and a summing amplifier, to one input of which a rolling pressure sensor is connected, another to control the flatness of the strip, and the summing output the amplifier is connected to the hydraulic cylinders of the bending of the work rolls, and the delay element is connected to the circuit between the strip flatness control unit and the summing amplifier, tension meters, p memory location at opposite edges of the strip are connected

с входом дифференциального усилител , выход которого подключен к двухпозиционному реле, контакты которого соединены с блоком управлени  прЕвода1Ми нажимных механизмов.with the input of the differential amplifier, the output of which is connected to a two-position relay, the contacts of which are connected to the control unit of the 1M drive and press mechanisms.

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SU1312979A 1968-03-14 1969-03-13 Device for automatic adjustment of the strip profile on a four-roll rolling mill SU479276A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71315068A 1968-03-14 1968-03-14

Publications (1)

Publication Number Publication Date
SU479276A3 true SU479276A3 (en) 1975-07-30

Family

ID=24864957

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1312979A SU479276A3 (en) 1968-03-14 1969-03-13 Device for automatic adjustment of the strip profile on a four-roll rolling mill

Country Status (9)

Country Link
US (1) US3534571A (en)
BE (1) BE729796A (en)
CH (1) CH518751A (en)
FR (1) FR2003865A1 (en)
GB (1) GB1267581A (en)
NL (1) NL165957C (en)
NO (1) NO136394C (en)
SE (1) SE354424B (en)
SU (1) SU479276A3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648496A (en) * 1969-06-16 1972-03-14 Marotta Valve Corp Apparatus for controlling rolling mill
US3782152A (en) * 1971-04-22 1974-01-01 Centro Speriment Metallurg Apparatus for improving the flatness of rolled strips
US3714805A (en) * 1971-11-11 1973-02-06 Wean United Inc Control system and method for concurrent automatic gage and crown control of a rolling mill
US3852888A (en) * 1972-07-20 1974-12-10 Inland Steel Co Roll level checking device
US4262511A (en) * 1978-09-08 1981-04-21 Reycan Research Limited Process for automatically controlling the shape of sheet metal produced in a rolling mill
JP5737617B2 (en) * 2011-04-01 2015-06-17 株式会社Ihi Apparatus and method for continuous compression of electrode strip
CN112317538B (en) * 2020-09-21 2023-03-17 山西太钢不锈钢股份有限公司 Stainless steel rolling control method of twenty-roller reversible cold rolling mill

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2903926A (en) * 1956-01-11 1959-09-15 Baldwin Lima Hamilton Corp Method and apparatus for controlling the contour of rolls in a rolling mill
US3024679A (en) * 1957-07-01 1962-03-13 Thomas A Fox Skin pass mills and methods of rolling
US3250105A (en) * 1958-08-25 1966-05-10 United Eng Foundry Co Method of and apparatus for processing metal strip
FR1226445A (en) * 1958-10-31 1960-07-11 Siderurgie Fse Inst Rech Guidance process for rolling very long strips
BE637693A (en) * 1962-09-21
US3318124A (en) * 1964-12-10 1967-05-09 Westinghouse Electric Corp Workpiece shape control
GB1151427A (en) * 1965-09-13 1969-05-07 United Eng Foundry Co Method of and Apparatus for Rolling Flat Strip

Also Published As

Publication number Publication date
SE354424B (en) 1973-03-12
NL165957C (en) 1981-06-15
DE1913105B2 (en) 1976-12-02
NO136394B (en) 1977-05-23
CH518751A (en) 1972-02-15
BE729796A (en) 1969-09-15
DE1913105A1 (en) 1969-12-11
NL6903887A (en) 1969-09-16
NO136394C (en) 1977-08-31
GB1267581A (en) 1972-03-22
FR2003865A1 (en) 1969-11-14
US3534571A (en) 1970-10-20
NL165957B (en) 1981-01-15

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