FR2391008A1 - Helically wound metal tube making machine - has ribbed rotary mandrel with crescent section part casing for profiling bending and welding - Google Patents
Helically wound metal tube making machine - has ribbed rotary mandrel with crescent section part casing for profiling bending and weldingInfo
- Publication number
- FR2391008A1 FR2391008A1 FR7714838A FR7714838A FR2391008A1 FR 2391008 A1 FR2391008 A1 FR 2391008A1 FR 7714838 A FR7714838 A FR 7714838A FR 7714838 A FR7714838 A FR 7714838A FR 2391008 A1 FR2391008 A1 FR 2391008A1
- Authority
- FR
- France
- Prior art keywords
- mandrel
- strip
- welding
- bending
- profiling
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/12—Making tubes or metal hoses with helically arranged seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/12—Making tubes or metal hoses with helically arranged seams
- B21C37/124—Making tubes or metal hoses with helically arranged seams the tubes having a special shape, e.g. with corrugated wall, flexible tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The machine makes metal tubes from spirally wound, ribbed and welded metal strip. A single rotating mandrel (2) is used for the bending, the profiling, and the welding, so that the machine is lightweight and readily produces large diameter tube. The bending and profiling operations may take place simultaneously at a single post, deforming plain strip (10) into a winged 'U' section whilst bending it into longitudinal spirals. A curved guide (1) with a tapered rib presses the strip (10) between two adjacent circumferential ribs (6) of the mandrel. The deformed strip automatically advances along the mandrel and moves onto a crescent shaped former (8). This has an inside diameter equal to the external diameter of the mandrel (2) and houses at least 180 deg. of the circumference of the mandrel. The former (8) applies a circumferential tension to the strip, for a tight overlapping of successive windings ready for welding (25).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7714838A FR2391008A1 (en) | 1977-05-16 | 1977-05-16 | Helically wound metal tube making machine - has ribbed rotary mandrel with crescent section part casing for profiling bending and welding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7714838A FR2391008A1 (en) | 1977-05-16 | 1977-05-16 | Helically wound metal tube making machine - has ribbed rotary mandrel with crescent section part casing for profiling bending and welding |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2391008A1 true FR2391008A1 (en) | 1978-12-15 |
FR2391008B1 FR2391008B1 (en) | 1982-07-30 |
Family
ID=9190820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7714838A Granted FR2391008A1 (en) | 1977-05-16 | 1977-05-16 | Helically wound metal tube making machine - has ribbed rotary mandrel with crescent section part casing for profiling bending and welding |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2391008A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118204692A (en) * | 2024-05-21 | 2024-06-18 | 四川省怀德建设工程有限公司 | Building material welding construction device |
-
1977
- 1977-05-16 FR FR7714838A patent/FR2391008A1/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118204692A (en) * | 2024-05-21 | 2024-06-18 | 四川省怀德建设工程有限公司 | Building material welding construction device |
Also Published As
Publication number | Publication date |
---|---|
FR2391008B1 (en) | 1982-07-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
AR | Application made for restoration | ||
DI | Inadmissibility of an action of restoration |