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JPS5791834A - Manufacture of taper bar - Google Patents

Manufacture of taper bar

Info

Publication number
JPS5791834A
JPS5791834A JP16936480A JP16936480A JPS5791834A JP S5791834 A JPS5791834 A JP S5791834A JP 16936480 A JP16936480 A JP 16936480A JP 16936480 A JP16936480 A JP 16936480A JP S5791834 A JPS5791834 A JP S5791834A
Authority
JP
Japan
Prior art keywords
taper
worked
substance
parallel rolls
stand
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
JP16936480A
Other languages
Japanese (ja)
Inventor
Tomohiko Ayada
Toyoyuki Tono
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.)
NHK Spring Co Ltd
Original Assignee
NHK Spring Co 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 NHK Spring Co Ltd filed Critical NHK Spring Co Ltd
Priority to JP16936480A priority Critical patent/JPS5791834A/en
Publication of JPS5791834A publication Critical patent/JPS5791834A/en
Pending legal-status Critical Current

Links

Landscapes

  • Metal Rolling (AREA)

Abstract

PURPOSE: To work a taper with a large surface reducing rate, and to make a device small-sized and light, by driving and rotating 2 pairs of parallel rolls.
CONSTITUTION: The first parallel rolls 3, 3 are driven and rotated, also the mutual interval is controlled, and when a substance to be worked (a) is supplied from the entry side of the first stand 1, the section of the substance to be worked (a) is rolled primarily to an elliptical shape gradually by the first parallel rolls 3, 3, and it is shifted toward the second stand 2. As for the second parallel rolls 5, 5, their positions A0, A0 are positioned at the entry side so as to be opposed to each other in their initial state, they are started when the substance to be worked (a) has arrived, the substance to be worked (a) is rolled secondarily along groove parts 6, 6, and is fed out from the delivery side as a tape bar (b) whose section is round. In this case, the groove part 6 is formed like a taper between the positions A0 and A1, and also the part between A1 and A2 is formed so as to have a prescribed radius, by which it is possible to obtain the taper bar (b) having a taper part 9 between a small diameter end part 7 and a large diameter end part 8.
COPYRIGHT: (C)1982,JPO&Japio
JP16936480A 1980-12-01 1980-12-01 Manufacture of taper bar Pending JPS5791834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16936480A JPS5791834A (en) 1980-12-01 1980-12-01 Manufacture of taper bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16936480A JPS5791834A (en) 1980-12-01 1980-12-01 Manufacture of taper bar

Publications (1)

Publication Number Publication Date
JPS5791834A true JPS5791834A (en) 1982-06-08

Family

ID=15885204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16936480A Pending JPS5791834A (en) 1980-12-01 1980-12-01 Manufacture of taper bar

Country Status (1)

Country Link
JP (1) JPS5791834A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100900630B1 (en) * 2002-10-04 2009-06-02 주식회사 포스코 Tip taper rolling device of wire rod

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4838854A (en) * 1971-09-22 1973-06-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4838854A (en) * 1971-09-22 1973-06-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100900630B1 (en) * 2002-10-04 2009-06-02 주식회사 포스코 Tip taper rolling device of wire rod

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