JPS579529A - Producing device for grooved pipe - Google Patents
Producing device for grooved pipeInfo
- Publication number
- JPS579529A JPS579529A JP8247180A JP8247180A JPS579529A JP S579529 A JPS579529 A JP S579529A JP 8247180 A JP8247180 A JP 8247180A JP 8247180 A JP8247180 A JP 8247180A JP S579529 A JPS579529 A JP S579529A
- Authority
- JP
- Japan
- Prior art keywords
- dies
- pipe
- mandrel
- pressing
- grooves
- 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
Links
Abstract
PURPOSE: To easily form longitudinal grooves in the desired positions of a metallic pipe by pressing dies onto the metallic pipe by means of pressing means, and forming grooves in axial direction between the dies and a mandrel.
CONSTITUTION: Split dies 4 are opened outward by moving wedges 7 rightward by means of hydraulic cylinders or the like, and a pipe 1 is inserted into the dies 4. At this time, a mandrel 2 fixed at one end is inserted into the pipe 1, and is so adjusted that its creset parts 2a oppose diametrically to the grooves of the dies 4. The wedges 7 are then pushed in leftward to approach the dies 4 slightly inward in a diametral direction, thereafter, a driving ring 10 is rotated. If the abutment points of the rollers 6 with backers 5 are moved from the position of 5a to 5c and further from the position of 5c to 5b, the leading end parts of the dies 4 give impact to the pipe 1, thereby pressing the pipe 1 to the mandrel 2. Since the four dies 4 press the pipe 1 simultaneously at this time, the pipe 1 is formed with longitudinal grooves over the entire circumference thereof.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8247180A JPS579529A (en) | 1980-06-18 | 1980-06-18 | Producing device for grooved pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8247180A JPS579529A (en) | 1980-06-18 | 1980-06-18 | Producing device for grooved pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS579529A true JPS579529A (en) | 1982-01-19 |
Family
ID=13775415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8247180A Pending JPS579529A (en) | 1980-06-18 | 1980-06-18 | Producing device for grooved pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS579529A (en) |
-
1980
- 1980-06-18 JP JP8247180A patent/JPS579529A/en active Pending
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