JPS56136211A - Looper controller - Google Patents

Looper controller

Info

Publication number
JPS56136211A
JPS56136211A JP4063180A JP4063180A JPS56136211A JP S56136211 A JPS56136211 A JP S56136211A JP 4063180 A JP4063180 A JP 4063180A JP 4063180 A JP4063180 A JP 4063180A JP S56136211 A JPS56136211 A JP S56136211A
Authority
JP
Japan
Prior art keywords
rolled material
looper
touches
speed
feedability
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
JP4063180A
Other languages
Japanese (ja)
Inventor
Akihira Takahashi
Fumio Yoshida
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 JP4063180A priority Critical patent/JPS56136211A/en
Publication of JPS56136211A publication Critical patent/JPS56136211A/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
    • 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

Abstract

PURPOSE:To stabilize the feedability of the rolled material since the biginning point of the rolling pass, by controlling the tension of the rolled material depending on the preset reference value changed to the aimed tension value after the looper touches the rolled material, in the looper controller installed between the rolling stands. CONSTITUTION:At the moment when the rolled material 3 is bitten by the rolling stand 2 in the second stage, the junction 7 of the speed reference circuit 8 is closed, and the speed reference NO is inputted to the digital-analog converter 9. The driving circuit 11 drives the motor 15 of the driving unit 14 to rotate in order to change the looper 4 with the lapse of time correspondingly to the speed and the angle theta; hereby, the shock of the looper 4 is moderated when it touches the rolled material 3. On this occasion, an electric current reference signal 13a is produced by the electric current reference circuit 13 according to the junction signals 13b, 13c and is inputted to the driving circuit 11 in order to set the tension value at a lower point until the looper 4 touches the rolled material 3; as a result, the feedability of the rolled material 3 is stabilized and the necking of the top of the rolled material 3 is lessened.
JP4063180A 1980-03-28 1980-03-28 Looper controller Pending JPS56136211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4063180A JPS56136211A (en) 1980-03-28 1980-03-28 Looper controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4063180A JPS56136211A (en) 1980-03-28 1980-03-28 Looper controller

Publications (1)

Publication Number Publication Date
JPS56136211A true JPS56136211A (en) 1981-10-24

Family

ID=12585888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4063180A Pending JPS56136211A (en) 1980-03-28 1980-03-28 Looper controller

Country Status (1)

Country Link
JP (1) JPS56136211A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7361866B2 (en) 2003-07-22 2008-04-22 Samsung Electronics Co., Ltd. Cooking apparatus using barcode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7361866B2 (en) 2003-07-22 2008-04-22 Samsung Electronics Co., Ltd. Cooking apparatus using barcode
US7473869B2 (en) 2003-07-22 2009-01-06 Samsung Electronics Co., Ltd. Cooking apparatus using barcode

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