JPS5548441A - Center deflection reforming and rolling device of valve bar material in thread rolling machine - Google Patents

Center deflection reforming and rolling device of valve bar material in thread rolling machine

Info

Publication number
JPS5548441A
JPS5548441A JP12234979A JP12234979A JPS5548441A JP S5548441 A JPS5548441 A JP S5548441A JP 12234979 A JP12234979 A JP 12234979A JP 12234979 A JP12234979 A JP 12234979A JP S5548441 A JPS5548441 A JP S5548441A
Authority
JP
Japan
Prior art keywords
thread
valve bar
shaft
rollers
roller
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
JP12234979A
Other languages
Japanese (ja)
Other versions
JPS5526942B2 (en
Inventor
Katsuaki Kitamura
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.)
KITAMURA GOKIN SEISAKUSHO
KITAMURA GOKIN SEISAKUSHO KK
Original Assignee
KITAMURA GOKIN SEISAKUSHO
KITAMURA GOKIN SEISAKUSHO KK
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 KITAMURA GOKIN SEISAKUSHO, KITAMURA GOKIN SEISAKUSHO KK filed Critical KITAMURA GOKIN SEISAKUSHO
Priority to JP12234979A priority Critical patent/JPS5548441A/en
Publication of JPS5548441A publication Critical patent/JPS5548441A/en
Publication of JPS5526942B2 publication Critical patent/JPS5526942B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mechanically-Actuated Valves (AREA)

Abstract

PURPOSE: To prevent a valve bar from sliding and being twisted off, by not only making it possible to freely rotate the plane roller but also making oiling holes in the shaft cores of both the rollers, in case of performing thread rolling working of the valve bar with the thread roller and the plane roller of the thread rolling machine.
CONSTITUTION: The fixed shaft 1 and the movable shaft 2 of the thread rolling machine are rotated in the same direction, and at the same time the movable shaft 2 is made movable in the direction of P. The thread part A' of the valve bar A and the shaft part A" are placed between the thread rollers 8, 8, and the plane rollers 14, 14, respectively, and reformation of the thread part A' of the valve bar A, and burnishing of the shaft part A" are carried out at the same time with both the rollers 8, 8, and 14, 14. In this case, when pressure in the twisting direction is put to the shaft A", both the plane rollers 14 do not go against the twisting pressure but shun it of themselves, by free rotation owing to the bearing metal and the bearing 11. At the same time, it is prevented that foreign matter enters between the thread roller 8 and the plane roller 14 through the lubricating pipe 19 and the lubricating holes 15, 16 by the operation of the hydraulic pressure pump, smooth rotation can be performed, and it is not caused that the valve bar slides, jumps out or is twisted off.
COPYRIGHT: (C)1980,JPO&Japio
JP12234979A 1979-09-22 1979-09-22 Center deflection reforming and rolling device of valve bar material in thread rolling machine Granted JPS5548441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12234979A JPS5548441A (en) 1979-09-22 1979-09-22 Center deflection reforming and rolling device of valve bar material in thread rolling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12234979A JPS5548441A (en) 1979-09-22 1979-09-22 Center deflection reforming and rolling device of valve bar material in thread rolling machine

Publications (2)

Publication Number Publication Date
JPS5548441A true JPS5548441A (en) 1980-04-07
JPS5526942B2 JPS5526942B2 (en) 1980-07-17

Family

ID=14833728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12234979A Granted JPS5548441A (en) 1979-09-22 1979-09-22 Center deflection reforming and rolling device of valve bar material in thread rolling machine

Country Status (1)

Country Link
JP (1) JPS5548441A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01228105A (en) * 1988-03-09 1989-09-12 Ngk Insulators Ltd Manufacture of non-linear voltage resistance
JPH02128401A (en) * 1988-11-08 1990-05-16 Ngk Insulators Ltd Voltage dependent nonlinear resistor and manufacture thereof
JPH02133902A (en) * 1988-11-15 1990-05-23 Ngk Insulators Ltd Manufacture of voltage nonlinear resistor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01228105A (en) * 1988-03-09 1989-09-12 Ngk Insulators Ltd Manufacture of non-linear voltage resistance
JPH02128401A (en) * 1988-11-08 1990-05-16 Ngk Insulators Ltd Voltage dependent nonlinear resistor and manufacture thereof
JPH02133902A (en) * 1988-11-15 1990-05-23 Ngk Insulators Ltd Manufacture of voltage nonlinear resistor

Also Published As

Publication number Publication date
JPS5526942B2 (en) 1980-07-17

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