JPS55117520A - Bend straightener - Google Patents

Bend straightener

Info

Publication number
JPS55117520A
JPS55117520A JP2445579A JP2445579A JPS55117520A JP S55117520 A JPS55117520 A JP S55117520A JP 2445579 A JP2445579 A JP 2445579A JP 2445579 A JP2445579 A JP 2445579A JP S55117520 A JPS55117520 A JP S55117520A
Authority
JP
Japan
Prior art keywords
straightening
elastic constant
bend
straightening work
work
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
JP2445579A
Other languages
Japanese (ja)
Inventor
Koji Maeda
Keiichi Oizumi
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 JP2445579A priority Critical patent/JPS55117520A/en
Publication of JPS55117520A publication Critical patent/JPS55117520A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve the straightening accuracy, and to shorten the cycle-time of straightening work, by installing the circuit to always renew the elastic constant to be used at the straightening work.
CONSTITUTION: At the bend straightener to use the elastic constant of the long size material, the circuit is installed on purpose to memorize the press force and the bend at the end point of pressing action during the straightening work and the bend after finishing the straightening work, to operate the elastic constant, and to renew the elastic constant data before entering next straightening work. By using this circuit constitution, the straightening work is repeated carrying out the operation and renewal of the elastic constant until the post-straightening bend becomes less than the allowable limit. By employing this straightener, the quality of the long size product is improved, and the cost reduction of the straightening work can be contrived.
COPYRIGHT: (C)1980,JPO&Japio
JP2445579A 1979-03-05 1979-03-05 Bend straightener Pending JPS55117520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2445579A JPS55117520A (en) 1979-03-05 1979-03-05 Bend straightener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2445579A JPS55117520A (en) 1979-03-05 1979-03-05 Bend straightener

Publications (1)

Publication Number Publication Date
JPS55117520A true JPS55117520A (en) 1980-09-09

Family

ID=12138629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2445579A Pending JPS55117520A (en) 1979-03-05 1979-03-05 Bend straightener

Country Status (1)

Country Link
JP (1) JPS55117520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57177831A (en) * 1981-04-01 1982-11-01 Mensooru Ab Adapting method for correcting strain of form of body and its device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57177831A (en) * 1981-04-01 1982-11-01 Mensooru Ab Adapting method for correcting strain of form of body and its device
JPH025489B2 (en) * 1981-04-01 1990-02-02 Toonsu Mekanisuka Uerukusutaado Ab

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