JPS57156826A - Hydraulic pressing-down device for rolling mill - Google Patents

Hydraulic pressing-down device for rolling mill

Info

Publication number
JPS57156826A
JPS57156826A JP56040351A JP4035181A JPS57156826A JP S57156826 A JPS57156826 A JP S57156826A JP 56040351 A JP56040351 A JP 56040351A JP 4035181 A JP4035181 A JP 4035181A JP S57156826 A JPS57156826 A JP S57156826A
Authority
JP
Japan
Prior art keywords
cylinder
rolling mill
rod
valve
rolling
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
JP56040351A
Other languages
Japanese (ja)
Other versions
JPH0214123B2 (en
Inventor
Toyoji Masuda
Akira Yamauchi
Satoshi Arima
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56040351A priority Critical patent/JPS57156826A/en
Publication of JPS57156826A publication Critical patent/JPS57156826A/en
Publication of JPH0214123B2 publication Critical patent/JPH0214123B2/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
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting

Landscapes

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

Abstract

PURPOSE:To improve the responsiveness of a piston rod of an intermediate cylinder in a hydraulic pressing-down device for a rolling mill and to increase the working efficiency of the rolling mill by providing a balancing spring means to said rod. CONSTITUTION:In a rolling mill constituted of work rolls 1, 2 and reinforcing rolls 3, 4, an oil hydraulic type main jack 7A constituted of a screw down ram 6 and a cylinder 7 is mounted to the lower reinforcing roll 4, and an intermediate cylinder 14 is provided between the same and a control valve 8 for controlling the oil pressure in the cylinder 7. The one oil chamber 14A of the cylinder 14 is connected to the above-mentioned cylinder 7 and the other oil chamber 14B to the valve 8. A detector 10 for detecting rolling stages is provided to the piston rod 15 of the cylinder 14, and the valve 8 is driven. In this case, a balancing spring 17A acting against the force pressed by rolling load is mounted to the rod 15 of the cylinder 14, whereby the main jacks on the driving side and the operating side are made commonly controllable and the working efficiency is improved.
JP56040351A 1981-03-23 1981-03-23 Hydraulic pressing-down device for rolling mill Granted JPS57156826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56040351A JPS57156826A (en) 1981-03-23 1981-03-23 Hydraulic pressing-down device for rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56040351A JPS57156826A (en) 1981-03-23 1981-03-23 Hydraulic pressing-down device for rolling mill

Publications (2)

Publication Number Publication Date
JPS57156826A true JPS57156826A (en) 1982-09-28
JPH0214123B2 JPH0214123B2 (en) 1990-04-06

Family

ID=12578207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56040351A Granted JPS57156826A (en) 1981-03-23 1981-03-23 Hydraulic pressing-down device for rolling mill

Country Status (1)

Country Link
JP (1) JPS57156826A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102513369A (en) * 2011-12-09 2012-06-27 山西太钢不锈钢股份有限公司 Hydraulic servo simulation control device and method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5959777B1 (en) 2016-02-17 2016-08-02 大野ロール株式会社 Hydraulic reduction device used in small rolling mill or roll press and hydraulic control method using this hydraulic reduction device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032525A (en) * 1983-08-01 1985-02-19 株式会社デンソー Input circuit for electronic controller for vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032525A (en) * 1983-08-01 1985-02-19 株式会社デンソー Input circuit for electronic controller for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102513369A (en) * 2011-12-09 2012-06-27 山西太钢不锈钢股份有限公司 Hydraulic servo simulation control device and method thereof

Also Published As

Publication number Publication date
JPH0214123B2 (en) 1990-04-06

Similar Documents

Publication Publication Date Title
US2032185A (en) Transmission system for a pressureoperated member such as a hydraulic press
GB1446096A (en) Impact actuator
US4125010A (en) Hydraulic press
JPS57156826A (en) Hydraulic pressing-down device for rolling mill
GB2157461A (en) Ram air turbine hydraulic power system
ES2189153T3 (en) HYDROSTATIC DRIVING TO RAISE AND LOWER AND SUBJECT LOADS, ESPECIALLY FOR MONTACARGAS.
US3464320A (en) Decompression system for press brakes or the like
GB1519871A (en) Press
US3469400A (en) High speed forging hammer apparatus
US3173286A (en) Method of operating a pressure fluidoperated press as a hammer and pressure fluid-operated press serving for carrying out the method
US4192414A (en) Hydraulic press tool protection arrangement
US4250805A (en) High-speed hydraulic press
US2622397A (en) Hydraulic transmission for press rams
GB2058924A (en) Pressure fluid assembly
US2984981A (en) Hydraulic press apparatus
SU1174286A1 (en) Device for damping impact when executing separation operations on hydraulic press
US3727519A (en) Hammer with a ram control device
JPS59220205A (en) Rolling reduction device of edging mill
US2143112A (en) Press with compound ram
JPS6032525B2 (en) Hydraulic reduction device for rolling mill
JPH10146639A (en) Method for controlling stroke frequency of forging machine and forging machine therefore
JPS5758736A (en) Construction machinery such as power shovel
SU99040A1 (en) Forging no-break air hammer
JPS55133810A (en) Hydraulic screw-down device of rolling mill
SU511462A1 (en) Safety valve