JPS5717317A - Screw down controller for rolling mill - Google Patents

Screw down controller for rolling mill

Info

Publication number
JPS5717317A
JPS5717317A JP7713981A JP7713981A JPS5717317A JP S5717317 A JPS5717317 A JP S5717317A JP 7713981 A JP7713981 A JP 7713981A JP 7713981 A JP7713981 A JP 7713981A JP S5717317 A JPS5717317 A JP S5717317A
Authority
JP
Japan
Prior art keywords
roll
screw down
load current
current
motor
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.)
Pending
Application number
JP7713981A
Other languages
Japanese (ja)
Inventor
Furuto Tsuchiya
Yoshihiro Nakatsuka
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 JP7713981A priority Critical patent/JPS5717317A/en
Publication of JPS5717317A publication Critical patent/JPS5717317A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
    • B21B38/105—Calibrating or presetting roll-gap
    • 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
    • B21B37/60—Roll-force control; Roll-gap control by control of a motor which drives an adjusting screw

Landscapes

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

Abstract

PURPOSE:To prevent unnecessary closure of rolls by controlling driving of a motor in accordance with the current control pattern generated by a pattern generator and making screw down controllable at the time of automatically performing zero adjustment of the roll gap of a rolling mill. CONSTITUTION:A current control pattern generator A is connected to a screw down driving motor 2 by way of a control panel 8. Just before a roll 3 contacts after the start of a current control pattern, the motor 2 is driven by the 1st reference load current larger than rated current. Thence, it is changed over to the 2nd reference load current smaller than the 1st reference load current, and the roll is screwed down to the point when the roll 3 contacts. When the rolls contact, the load current is made zero by way of a screw down force deciding device 5.
JP7713981A 1981-05-21 1981-05-21 Screw down controller for rolling mill Pending JPS5717317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7713981A JPS5717317A (en) 1981-05-21 1981-05-21 Screw down controller for rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7713981A JPS5717317A (en) 1981-05-21 1981-05-21 Screw down controller for rolling mill

Publications (1)

Publication Number Publication Date
JPS5717317A true JPS5717317A (en) 1982-01-29

Family

ID=13625464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7713981A Pending JPS5717317A (en) 1981-05-21 1981-05-21 Screw down controller for rolling mill

Country Status (1)

Country Link
JP (1) JPS5717317A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4832024A (en) * 1971-08-26 1973-04-27
JPS4981258A (en) * 1972-12-13 1974-08-06

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4832024A (en) * 1971-08-26 1973-04-27
JPS4981258A (en) * 1972-12-13 1974-08-06

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