JPS5577921A - Method and apparatus for automatic thickness control - Google Patents

Method and apparatus for automatic thickness control

Info

Publication number
JPS5577921A
JPS5577921A JP15196078A JP15196078A JPS5577921A JP S5577921 A JPS5577921 A JP S5577921A JP 15196078 A JP15196078 A JP 15196078A JP 15196078 A JP15196078 A JP 15196078A JP S5577921 A JPS5577921 A JP S5577921A
Authority
JP
Japan
Prior art keywords
speed ratio
roll gap
controlled
thickness
mill
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.)
Granted
Application number
JP15196078A
Other languages
Japanese (ja)
Other versions
JPS6120372B2 (en
Inventor
Toshihiko Ono
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15196078A priority Critical patent/JPS5577921A/en
Publication of JPS5577921A publication Critical patent/JPS5577921A/en
Publication of JPS6120372B2 publication Critical patent/JPS6120372B2/ja
Granted 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
    • B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/04—Roll speed
    • B21B2275/05—Speed difference between top and bottom rolls

Landscapes

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

Abstract

PURPOSE: To control the thickness to constant, and to economically manufacture the product with good shape, by adjusting the speed ratio of upper and lower rolls within the range of allowable speed ratio between upper and lower rolls facing each other interposing the rolled material in the rolling mill, and by adjusting the roll gap in case of the speed ratio coming out of the allowable range of speed ratio.
CONSTITUTION: The rolling mill consists of upper and lower reducing rolls R1, R2, rotating at different speeds interposing the rolled material 4, the roll position detector 1, the rolling load detector 2, etc. The roll gap and the rolling load are detected, and the exit side thickness of the rolled material is operated from these detected roll gap and the rolling load and the mill constant of the rolling mill. According to the deviation of this operated exit side thickness from the set thickness, the speed is controlled by the speed controllers 8, 9, when the speed ratio of controlled reducing rolls is in the specified range of speed ratio; and the roll gap of the mill is controlled by the roll gap adjuster 11 when the speed ratio comes out of the specified range of speed ratio; hereby, the thickness can be controlled to constant.
COPYRIGHT: (C)1980,JPO&Japio
JP15196078A 1978-12-11 1978-12-11 Method and apparatus for automatic thickness control Granted JPS5577921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15196078A JPS5577921A (en) 1978-12-11 1978-12-11 Method and apparatus for automatic thickness control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15196078A JPS5577921A (en) 1978-12-11 1978-12-11 Method and apparatus for automatic thickness control

Publications (2)

Publication Number Publication Date
JPS5577921A true JPS5577921A (en) 1980-06-12
JPS6120372B2 JPS6120372B2 (en) 1986-05-22

Family

ID=15529965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15196078A Granted JPS5577921A (en) 1978-12-11 1978-12-11 Method and apparatus for automatic thickness control

Country Status (1)

Country Link
JP (1) JPS5577921A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141807A (en) * 1982-02-15 1983-08-23 Mitsubishi Electric Corp Equipment for automatically controlling sheet thickness

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141807A (en) * 1982-02-15 1983-08-23 Mitsubishi Electric Corp Equipment for automatically controlling sheet thickness
DE3305132A1 (en) * 1982-02-15 1983-08-25 Mitsubishi Denki K.K., Tokyo DEVICE FOR AUTOMATICALLY CONTROLLING THE PLATE THICKNESS DURING THE ROLLING PROCESS
JPH0218168B2 (en) * 1982-02-15 1990-04-24 Mitsubishi Electric Corp
DE3305132C2 (en) * 1982-02-15 1991-05-29 Mitsubishi Denki K.K., Tokio/Tokyo, Jp

Also Published As

Publication number Publication date
JPS6120372B2 (en) 1986-05-22

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