JPS6471520A - Roll forming apparatus for welded pipe - Google Patents
Roll forming apparatus for welded pipeInfo
- Publication number
- JPS6471520A JPS6471520A JP22708287A JP22708287A JPS6471520A JP S6471520 A JPS6471520 A JP S6471520A JP 22708287 A JP22708287 A JP 22708287A JP 22708287 A JP22708287 A JP 22708287A JP S6471520 A JPS6471520 A JP S6471520A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- rolls
- longitudinal
- forming apparatus
- downs
- 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
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE:To very easily prevent the occurrence of rolling with a simple constitution by disposing one or more longitudinal rolls slant obliquely in the direction of material advancing and by making it to a driving type. CONSTITUTION:A forming stand 10 is constituted of a brake-downs 12 and fin passes 13, and horizontal rolls 14, 16, 18, 20 and longitudinal rolls 22, 24, 26, 28 are provided on the brake-downs 12. Then, the longitudinal roll 28 on the final stage is disposed obliquely in the material advancing direction, and made into the driving type. When an inclined rolling is performed by using such rolls, a frictional force F is operated on the rolling part, and by its downward component of the force Fy, a restoring force is generated on the rolling part to eliminate the rolling action. Therefore, the occurrence of the rolling is very easily prevented with the simple constitution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22708287A JPS6471520A (en) | 1987-09-10 | 1987-09-10 | Roll forming apparatus for welded pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22708287A JPS6471520A (en) | 1987-09-10 | 1987-09-10 | Roll forming apparatus for welded pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6471520A true JPS6471520A (en) | 1989-03-16 |
Family
ID=16855226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22708287A Pending JPS6471520A (en) | 1987-09-10 | 1987-09-10 | Roll forming apparatus for welded pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6471520A (en) |
-
1987
- 1987-09-10 JP JP22708287A patent/JPS6471520A/en active Pending
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