JPS55122630A - Method and apparatus for straightening of bar material - Google Patents

Method and apparatus for straightening of bar material

Info

Publication number
JPS55122630A
JPS55122630A JP2989879A JP2989879A JPS55122630A JP S55122630 A JPS55122630 A JP S55122630A JP 2989879 A JP2989879 A JP 2989879A JP 2989879 A JP2989879 A JP 2989879A JP S55122630 A JPS55122630 A JP S55122630A
Authority
JP
Japan
Prior art keywords
bar material
straightening
twist
amount
bar
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
JP2989879A
Other languages
Japanese (ja)
Inventor
Keiichi Oizumi
Koji Maeda
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 JP2989879A priority Critical patent/JPS55122630A/en
Publication of JPS55122630A publication Critical patent/JPS55122630A/en
Pending legal-status Critical Current

Links

Landscapes

  • Straightening Metal Sheet-Like Bodies (AREA)

Abstract

PURPOSE:To enalbe automatic and accurate straightening by detecting the twist amount of the bar material during straightening of twisting and calculating the required twisting force from said twist amount and the spring constant, etc of the bar material thereby straightening the bar material. CONSTITUTION:A bar material 1 is sent from clamping devices 8A, 8B to a straightening device 9 as the elevator 6 of a feed device 5 ascends. The arriavl of the bar material 1 is checked with position detectors 12A, 12B and when the bar material is guided and arrives at the position of a position detector 12D, sensors 15A, 15B, 15C, 15D are contacted with the bar material 1 and the twist amount of the bar material 1 is measured. When the twist is above the permissible value, the feed of the bar 1 is stopped and the clamp device 8B operates to clamp the material. Thence, from the foregoing twist amount and the spring constance and twist force of the bar material, the spring back amount after the straightening is calculated 17 and twist force is so exerted that the twist amount after the spring back becomes 0, whereby the straightening is done.
JP2989879A 1979-03-16 1979-03-16 Method and apparatus for straightening of bar material Pending JPS55122630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2989879A JPS55122630A (en) 1979-03-16 1979-03-16 Method and apparatus for straightening of bar material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2989879A JPS55122630A (en) 1979-03-16 1979-03-16 Method and apparatus for straightening of bar material

Publications (1)

Publication Number Publication Date
JPS55122630A true JPS55122630A (en) 1980-09-20

Family

ID=12288786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2989879A Pending JPS55122630A (en) 1979-03-16 1979-03-16 Method and apparatus for straightening of bar material

Country Status (1)

Country Link
JP (1) JPS55122630A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012028296A1 (en) * 2010-08-30 2012-03-08 M A E Maschinen- Und Apparatebau Götzen Gmbh Bending-straightening machine for a long workpiece, device for feeding in and removing said workpiece and method for bend-straightening long workpieces
CN104759494A (en) * 2015-04-23 2015-07-08 长江润发机械股份有限公司 Precise straightening machine for elevator rail
CN105107882A (en) * 2015-09-07 2015-12-02 南京理工大学 Elevator guide rail automatic straightening machine system and straightening method of same
CN106424205A (en) * 2016-11-02 2017-02-22 广东万丰摩轮有限公司 Device for detecting rim flatness
CN106563743A (en) * 2016-11-02 2017-04-19 广东万丰摩轮有限公司 Automatic correcting device for rim flatness

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012028296A1 (en) * 2010-08-30 2012-03-08 M A E Maschinen- Und Apparatebau Götzen Gmbh Bending-straightening machine for a long workpiece, device for feeding in and removing said workpiece and method for bend-straightening long workpieces
CN103228373A (en) * 2010-08-30 2013-07-31 Mae机械及设备制造高登有限责任公司 Bending-straightening machine for a long workpiece, device for feeding in and removing said workpiece and method for bend-traightening long workpieces
CN103228373B (en) * 2010-08-30 2016-08-03 Mae机械及设备制造高登有限责任公司 Straightener for machining long workpieces and the input and output device to this and for the method that machining long workpieces is aligned
CN104759494A (en) * 2015-04-23 2015-07-08 长江润发机械股份有限公司 Precise straightening machine for elevator rail
CN105107882A (en) * 2015-09-07 2015-12-02 南京理工大学 Elevator guide rail automatic straightening machine system and straightening method of same
CN106424205A (en) * 2016-11-02 2017-02-22 广东万丰摩轮有限公司 Device for detecting rim flatness
CN106563743A (en) * 2016-11-02 2017-04-19 广东万丰摩轮有限公司 Automatic correcting device for rim flatness
CN106424205B (en) * 2016-11-02 2018-06-22 广东万丰摩轮有限公司 A kind of device for detecting wheel rim flatness

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