JPS55141333A - Production and device for elbow - Google Patents
Production and device for elbowInfo
- Publication number
- JPS55141333A JPS55141333A JP5042679A JP5042679A JPS55141333A JP S55141333 A JPS55141333 A JP S55141333A JP 5042679 A JP5042679 A JP 5042679A JP 5042679 A JP5042679 A JP 5042679A JP S55141333 A JPS55141333 A JP S55141333A
- Authority
- JP
- Japan
- Prior art keywords
- bending
- die
- stage
- elbow
- press
- 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
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To make possible bending of a thin-walled material as well, and obtain the elbow having no straight portions and causing less losses of materials by compression bending the material at the specified angle then shifting the end of this bent portion gradually to tensile bending.
CONSTITUTION: A material 27 is compressed by a punch 9 into the ring-form spacing 15a constituted by a clamp die 15 and the front mandrel 13 and rear mandrel 7 integrally mounted to a die roll 10, by which the press bending of the 1st stage is accomplished. Here, the length of the die 15 is beforehand set jut before the compressive force becomes maximum, i.e., at about 30W40°. Next, after the press bending of the 1st stage is finished, the end portion of the material 27 is firmly clamped by the die 15. Next, in this state, the roll 10 is revolved to start the bending stroke of the 2nd stage in which pushing-pulling are mixed in mutual cooperation with the pushing of press cylinders 3, 3. A pump 9 is then moved integrally with the pressure die 17 while pressing the material 27 in the tangential direction, whereby the intended elbow is produced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5042679A JPS55141333A (en) | 1979-04-23 | 1979-04-23 | Production and device for elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5042679A JPS55141333A (en) | 1979-04-23 | 1979-04-23 | Production and device for elbow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55141333A true JPS55141333A (en) | 1980-11-05 |
| JPS579888B2 JPS579888B2 (en) | 1982-02-24 |
Family
ID=12858532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5042679A Granted JPS55141333A (en) | 1979-04-23 | 1979-04-23 | Production and device for elbow |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55141333A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112742932A (en) * | 2020-12-15 | 2021-05-04 | 浙江爱科乐环保有限公司 | Bending method of to-be-bent pipe fitting for spraying atomization in deodorization equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769452B (en) * | 2012-10-24 | 2016-08-31 | 宁波钜智自动化装备有限公司 | A kind of CNC tube bending machine |
-
1979
- 1979-04-23 JP JP5042679A patent/JPS55141333A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112742932A (en) * | 2020-12-15 | 2021-05-04 | 浙江爱科乐环保有限公司 | Bending method of to-be-bent pipe fitting for spraying atomization in deodorization equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS579888B2 (en) | 1982-02-24 |
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