JPS5581012A - Hydraulic screw-down control unit - Google Patents

Hydraulic screw-down control unit

Info

Publication number
JPS5581012A
JPS5581012A JP15438978A JP15438978A JPS5581012A JP S5581012 A JPS5581012 A JP S5581012A JP 15438978 A JP15438978 A JP 15438978A JP 15438978 A JP15438978 A JP 15438978A JP S5581012 A JPS5581012 A JP S5581012A
Authority
JP
Japan
Prior art keywords
screw
down position
set value
setting
value
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
JP15438978A
Other languages
Japanese (ja)
Other versions
JPS6024727B2 (en
Inventor
Eiichi Kagawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP53154389A priority Critical patent/JPS6024727B2/en
Publication of JPS5581012A publication Critical patent/JPS5581012A/en
Publication of JPS6024727B2 publication Critical patent/JPS6024727B2/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
    • B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device

Abstract

PURPOSE:To make setting of screw-down position faster and improve its setting accuracy by providing such a control mechanism by which the automatic screw- down position becomes the preset screw-down position in consideration for the delay of the hydraulic screw-down system. CONSTITUTION:As automatic screw-down position setting starts, a screw-down position reference value changes in taper form toward the screw-down position set value and with a slight delay the screw-down position feedback value follows up this in taper form. At the time when the screw-down position set value deviation enters a zero error range, the output of a screw-down position integrator 9 is preset at the set value itself so that the reference value and set value become equal. Hence, even if the static control loop actuates upon completion of zero error, the screw- down position feedback value operates so as to coincide with the set value, thus the correct screw-down position setting is obtainable.
JP53154389A 1978-12-13 1978-12-13 Hydraulic reduction control device Expired JPS6024727B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53154389A JPS6024727B2 (en) 1978-12-13 1978-12-13 Hydraulic reduction control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53154389A JPS6024727B2 (en) 1978-12-13 1978-12-13 Hydraulic reduction control device

Publications (2)

Publication Number Publication Date
JPS5581012A true JPS5581012A (en) 1980-06-18
JPS6024727B2 JPS6024727B2 (en) 1985-06-14

Family

ID=15583059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53154389A Expired JPS6024727B2 (en) 1978-12-13 1978-12-13 Hydraulic reduction control device

Country Status (1)

Country Link
JP (1) JPS6024727B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019166531A (en) * 2018-03-22 2019-10-03 日鉄エンジニアリング株式会社 Rolling machine and manufacturing method of rolled steel material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019166531A (en) * 2018-03-22 2019-10-03 日鉄エンジニアリング株式会社 Rolling machine and manufacturing method of rolled steel material

Also Published As

Publication number Publication date
JPS6024727B2 (en) 1985-06-14

Similar Documents

Publication Publication Date Title
JPS5332235A (en) Air-to-fuel ratio control means
JPS55143604A (en) Separate control system for manipulated variable
JPS5581012A (en) Hydraulic screw-down control unit
JPS5411622A (en) Control method for accurate feed
JPS5379176A (en) Proportional integrating adjustor
JPS5624603A (en) Process control device
JPS5337286A (en) Servo mechanism control device
JPS55166714A (en) Electric type speed governor
SE7413033L (en)
JPS5335888A (en) Flow control valve control system
JPS5537631A (en) Automatic controller
JPS5539915A (en) Process control device
EP0050168A3 (en) A position control system for a numerical-controlled machine tool
JPS53147186A (en) On off controller
JPS5576405A (en) Process controller
JPS5340033A (en) Supplying coating compounds at constant output
JPS56153404A (en) Automatic parameter adjusting type control device
JPS5775319A (en) Positioning device
JPS52144574A (en) Electro magnet proportional control valve
JPS5329478A (en) Controller for non-linear process
JPS5564915A (en) Lock-on method in automatic gauge controller
JPS52122780A (en) Electromagnetic proportion controlling valve
JPS51111595A (en) Water supply system of boiling-water type reactor
JPS536945A (en) High frequency heater
JPS57130712A (en) Loop controlling device