JPS5630020A - Looper controller - Google Patents

Looper controller

Info

Publication number
JPS5630020A
JPS5630020A JP10627079A JP10627079A JPS5630020A JP S5630020 A JPS5630020 A JP S5630020A JP 10627079 A JP10627079 A JP 10627079A JP 10627079 A JP10627079 A JP 10627079A JP S5630020 A JPS5630020 A JP S5630020A
Authority
JP
Japan
Prior art keywords
speed
looper
frame
servo
sent
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
JP10627079A
Other languages
Japanese (ja)
Other versions
JPS6324763B2 (en
Inventor
Hiroaki Kuwano
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Priority to JP10627079A priority Critical patent/JPS5630020A/en
Publication of JPS5630020A publication Critical patent/JPS5630020A/en
Publication of JPS6324763B2 publication Critical patent/JPS6324763B2/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
    • B21B37/48—Tension control; Compression control
    • B21B37/50—Tension control; Compression control by looper control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
    • B21B41/08—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters without overall change in the general direction of movement of the work
    • B21B41/10—Loop deflectors

Landscapes

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

Abstract

PURPOSE:To stabilize the response speed of the hydraulic servo system, by giving the integrated value of the looper roll speed, its representative speed, or its acceleration, as the feedback to the servo amplifier. CONSTITUTION:The natural frequency of the looper's mechanical system is raised for the purpose of improving the response speed. That is, in the looper controller, the rotational speed (m) of the swing frame 2 is detected by the speed detector 20, and this detected speed value (n) is sent to the factor multiplier 21 and is multiplied by a factor; then, the output signal (p) is sent as the feedback to the servo amplifier 12. The set point (a) for the required tension of the strip S, when the frame 2 is in the reference angle, is set in the setting operator 11; the output (b) of this setting operator 11, and the tension detecting value (k) obtained by the vertical force operator 19 from the load detecting value (j) and the acceleration detecting value (i), are inputted to the servo amplifier 12 which then operates this input together with the formerly inputted signal (p); thus obtained electric servo current (c) is sent to the servo valve 13 and hereby the frame 2 is turned round so as to improve the rigidity of the frame 2 of the looper's mechanical system 15.
JP10627079A 1979-08-21 1979-08-21 Looper controller Granted JPS5630020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10627079A JPS5630020A (en) 1979-08-21 1979-08-21 Looper controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10627079A JPS5630020A (en) 1979-08-21 1979-08-21 Looper controller

Publications (2)

Publication Number Publication Date
JPS5630020A true JPS5630020A (en) 1981-03-26
JPS6324763B2 JPS6324763B2 (en) 1988-05-23

Family

ID=14429386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10627079A Granted JPS5630020A (en) 1979-08-21 1979-08-21 Looper controller

Country Status (1)

Country Link
JP (1) JPS5630020A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6374112U (en) * 1986-11-05 1988-05-18
JP2001206601A (en) * 1999-11-05 2001-07-31 Sms Demag Ag Loop lifter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6374112U (en) * 1986-11-05 1988-05-18
JP2001206601A (en) * 1999-11-05 2001-07-31 Sms Demag Ag Loop lifter

Also Published As

Publication number Publication date
JPS6324763B2 (en) 1988-05-23

Similar Documents

Publication Publication Date Title
JPS5630020A (en) Looper controller
JPS5627404A (en) Servo unit
JPS5762406A (en) Process control system
JPS55133814A (en) Looper controller for hot rolling mill
JPS5469555A (en) Controlling method for looper
JPS54113779A (en) Digital servo-device
JPS55144789A (en) Variable speed control device
JPS5631110A (en) Position control device
JPS5629484A (en) Load torque detector for induction motor
SE7711545L (en) DEVICE FOR SPEED COMPENSATION AT ROLLING MACHINE
JPS561209A (en) Controlling method for loop in loop-controlled rolling work
JPS57126360A (en) Controller of belt material winding motor
JPS54117358A (en) Controlling method for tension of looper
JPS55153456A (en) Pulse transmission circuit
JPS55158866A (en) Mold level control method
JPS5469554A (en) Controlling method for looper
JPS5698384A (en) Speed control system for motor
JPS5780566A (en) Frequency deviation detector
JPS5576935A (en) Chassis dynamometer
JPS5683291A (en) Speed controller of induction motor
JPS53100954A (en) Upper and lower rolling load balancing circuit in rolling mill
JPS54138291A (en) Apparatus for controlling position of truck
JPS5522453A (en) Welding wire feeder
JPS5455109A (en) Controller for signal level
JPS5552616A (en) Signal amplitude compressor with amplitude limit