GB1138860A - Improvements in the bending of structural members - Google Patents
Improvements in the bending of structural membersInfo
- Publication number
- GB1138860A GB1138860A GB1677566A GB1677566A GB1138860A GB 1138860 A GB1138860 A GB 1138860A GB 1677566 A GB1677566 A GB 1677566A GB 1677566 A GB1677566 A GB 1677566A GB 1138860 A GB1138860 A GB 1138860A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rolls
- assembly
- pair
- idler
- section
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
1,138,860. Curving. R. G. SMITH. 16 April, 1966, No. 16775/66. Heading B3E. Apparatus for bending a length of structural member to a predetermined curvature without the use of heat and in a single pass comprises a base, two pairs of drive rolls between which said length may be passed, each pair of drive rolls being supported on said base for movement relative to one another such that the angle between the planes containing the axes of each pair of rolls can be adjusted and at least three angularly adjustable pairs of idler rolls positioned between said pairs of drive rolls. A structural member, e.g. of H, I or channel-section, to be curved passes through a driven pair of rolls of an assembly 12, through three pairs of idler rolls, then through a driven pair of rolls of an assembly 11, being bent to a parabolic shape between the assembly 12 and the first roller assembly and to the desired curvature between the last idler assembly and the assembly 11. The rollers of the assemblies 11, 12 are all driven at the same speed by a tensioned chain and intergearing, have serrated surfaces and may be grooved to accommodate flanges of the workpiece. One roller of each pair is adjustable towards the other and each assembly is angularly adjustable about the axis of one roll of its pair. The idler roll assemblies are additionally adjustable radially between guides 51. For use in bending H sections each idler assembly may carry guide rolls perpendicular to the idler rolls to engage the web of the section. To facilitate the insertion of an H section a triangular piece is cut out of the web and the flange bent against the free edge of the web to provide a tapered end, Figs. 11, 12 (not shown). A photo-electric cell may stop the drive to the machine when the bent end of the section interrupts the light beam. A saw is energized to cut off a predetermined length and the curving operation is restarted. Successive lengths of section may be welded together prior to curving.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1677566A GB1138860A (en) | 1966-04-16 | 1966-04-16 | Improvements in the bending of structural members |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1677566A GB1138860A (en) | 1966-04-16 | 1966-04-16 | Improvements in the bending of structural members |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1138860A true GB1138860A (en) | 1969-01-01 |
Family
ID=10083450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1677566A Expired GB1138860A (en) | 1966-04-16 | 1966-04-16 | Improvements in the bending of structural members |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1138860A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0157537A2 (en) * | 1984-03-24 | 1985-10-09 | Ae Plc | The manufacture of piston rings |
EP1361004A2 (en) * | 2002-03-13 | 2003-11-12 | Alberto Martini | Apparatus for shaping angle section bars |
EP2252793A1 (en) * | 2008-02-14 | 2010-11-24 | Rautaruukki OYJ | Method and blank for manufacturing product, and product |
CN110586710A (en) * | 2019-10-12 | 2019-12-20 | 程玟豪 | Symmetric type road side baffle bending device |
-
1966
- 1966-04-16 GB GB1677566A patent/GB1138860A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0157537A2 (en) * | 1984-03-24 | 1985-10-09 | Ae Plc | The manufacture of piston rings |
EP0157537A3 (en) * | 1984-03-24 | 1986-10-29 | Ae Plc | The manufacture of piston rings |
EP1361004A2 (en) * | 2002-03-13 | 2003-11-12 | Alberto Martini | Apparatus for shaping angle section bars |
EP1361004A3 (en) * | 2002-03-13 | 2004-10-27 | Alberto Martini | Apparatus for shaping angle section bars |
EP2252793A1 (en) * | 2008-02-14 | 2010-11-24 | Rautaruukki OYJ | Method and blank for manufacturing product, and product |
EP2252793A4 (en) * | 2008-02-14 | 2014-02-12 | Rautaruukki Oyj | Method and blank for manufacturing product, and product |
CN110586710A (en) * | 2019-10-12 | 2019-12-20 | 程玟豪 | Symmetric type road side baffle bending device |
CN110586710B (en) * | 2019-10-12 | 2022-11-29 | 程玟豪 | Symmetric type road side baffle bending device |
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