JPS574737A - Synthetic resin-coated pipe and method and apparatus for producing the same - Google Patents
Synthetic resin-coated pipe and method and apparatus for producing the sameInfo
- Publication number
- JPS574737A JPS574737A JP7934480A JP7934480A JPS574737A JP S574737 A JPS574737 A JP S574737A JP 7934480 A JP7934480 A JP 7934480A JP 7934480 A JP7934480 A JP 7934480A JP S574737 A JPS574737 A JP S574737A
- Authority
- JP
- Japan
- Prior art keywords
- metal plate
- synthetic resin
- engaging
- projection
- engaging groove
- 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
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To produce the captioned pipe having a high strength and excellent in the shape retention, by forming an engaging projection and an engaging groove respectively to opposite edges of an long metal plate, bending the metal plate to engage the projection with the groove thereby forming it into a tubular shape, and coating the exterior of the tube with a resin.
CONSTITUTION: The side edges of the metal plate 4 fed fom a drum A are processed by a first roll forming apparatus B to form the engaging projection 5, the engaging groove 6 and a step 10, then the metal plate 4 is bent by a second roll forming apparatus C. Then it is passed through a ring 11 of a clamping apparatus E to engage the engaging projection 5 with the engaging groove 6 and they are clamped securely to each other by a clamping device. Thus formed pipe body 2 having a circular shape in cross section is delivered through a pulling apparatus F to an extrusion molding apparatus D where its exterior is coated with a melted synthetic resin when it is in a head 14, and it is cut by a saw 33 of a cutting apparatus H into desired lengths to obtain the synthetic resin-covered pipes.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7934480A JPS574737A (en) | 1980-06-12 | 1980-06-12 | Synthetic resin-coated pipe and method and apparatus for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7934480A JPS574737A (en) | 1980-06-12 | 1980-06-12 | Synthetic resin-coated pipe and method and apparatus for producing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS574737A true JPS574737A (en) | 1982-01-11 |
Family
ID=13687279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7934480A Pending JPS574737A (en) | 1980-06-12 | 1980-06-12 | Synthetic resin-coated pipe and method and apparatus for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS574737A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100653427B1 (en) | 2005-04-27 | 2006-12-05 | 김선화 | crops support a stick automatic production a formula and a device |
-
1980
- 1980-06-12 JP JP7934480A patent/JPS574737A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100653427B1 (en) | 2005-04-27 | 2006-12-05 | 김선화 | crops support a stick automatic production a formula and a device |
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