GB1299720A - Apparatus for continuously forming a metal framework - Google Patents
Apparatus for continuously forming a metal frameworkInfo
- Publication number
- GB1299720A GB1299720A GB6331469A GB6331469A GB1299720A GB 1299720 A GB1299720 A GB 1299720A GB 6331469 A GB6331469 A GB 6331469A GB 6331469 A GB6331469 A GB 6331469A GB 1299720 A GB1299720 A GB 1299720A
- Authority
- GB
- United Kingdom
- Prior art keywords
- struts
- welding
- strut
- support
- girder
- 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
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
- B21F27/20—Making special types or portions of network by methods or means specially adapted therefor of plaster-carrying network
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
- B23K11/008—Manufacturing of metallic grids or mats by spot welding
- B23K11/0086—Grids or mats used in concrete structures
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Wire Processing (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
1299720 Welding by pressure; making lattice girders O CRISTOFORETTI and G HELL 30 Dec 1969 [13 Jan 1969 6 Dec 1969] 63314/69 Headings B3A and B3R An apparatus, for producing a lattice girder comprising a single upper and two lower longitudinal stringers 2, 3 and lateral struts 4, comprises means for feeding and maintaining the struts to and in welding positions, upper and lower strut/stringer welding means 30, 35, and a reciprocating transporting means 60 for longitudinally moving the girder through the apparatus. The upper welding means 30 (Figs. 2, 4) comprises pairs of parallel hydraulically actuated, spring returned, electrodes 31 having cranked ends and being rotationally adjustable about their longitudinal axes such that said ends of each pair may be adjusted towards and away from each other in the longitudinal direction of the girder. The electrodes are also pivotable about transverse axes to accommodate strut angle. The lower welding means 35 (Figs. 1, 5) comprises hydraulically, pneumatically or electrically actuated plate units 36. Units 38 guide and support the partly formed framework through the lower welding means. The transporting means 60 comprises a reciprocating carriage 62 having a support 61 engageable with the underside of the stringer 2 and one-way acting pawls 63 engageable with the struts 4. As shown, the struts 4 are loaded into hoppers 11 having at their exits rotatable, peripherally slotted drums 12 by which the struts are metered through shoots 14 into magazines 16. Drum operation is controlled by means optically, electrically or mechanically sensing magazine stock. Hydraulically actuated pistons 8 project the struts from the magazines towards a strut clamping device comprising variable angle fixed plates 41 and a double jaw member 42 acted on by a pneumatic or hydraulic cylinder 45 via an inverted wedge 43. In Fig. 6 (not shown), the jaw member 42 is replaced by a quadrilateral linkage (48). In Fig. 7 (not shown), the struts are clamped between fixed inner plates (51) and movable outer plates (52). In Figs. 8, 9 (not shown), the struts are clamped between fixed outer rollers (56) and an upwardly movable wedge (58). In Figs 11, 12 (not shown), the struts fall from metering drums (71), through tubes (73), directly on to a suitable recessed support (75) which after welding is downwardly withdrawn. In Fig. 13 (not shown), the struts are formed from wire which is fed from storage reels (80), through wire straighteners (81), into engagement with a support, the lower ends of the struts being severed from the fed wire by cutters (82). Fail-safe devices (not shown or described) are provided to stop the apparatus in the event of malfunction or strut supply interruption.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT3413369 | 1969-01-13 | ||
IT4203069 | 1969-12-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1299720A true GB1299720A (en) | 1972-12-13 |
Family
ID=26328987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6331469A Expired GB1299720A (en) | 1969-01-13 | 1969-12-30 | Apparatus for continuously forming a metal framework |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT311155B (en) |
CH (1) | CH504251A (en) |
DE (1) | DE2001358C3 (en) |
FR (1) | FR2028222A1 (en) |
GB (1) | GB1299720A (en) |
SE (1) | SE352551B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2120151A (en) * | 1979-09-17 | 1983-11-30 | Covington Technologies | Method and apparatus for welding |
WO2013080142A1 (en) * | 2011-11-28 | 2013-06-06 | Antonios Anagnostopoulos | Method and system for the production of reinforcing dowel baskets for contracting-expanding joints |
CN103796771A (en) * | 2011-06-30 | 2014-05-14 | 发展机械及自动化股份公司 | Method and device for continuously producing mesh-type support |
CN110116264A (en) * | 2019-05-09 | 2019-08-13 | 四川九州光电子技术有限公司 | The lower electrode leveling device of welder |
CN112958937A (en) * | 2021-03-18 | 2021-06-15 | 济南奥图科技有限责任公司 | Automatic welding production line for net frame |
-
1969
- 1969-12-30 GB GB6331469A patent/GB1299720A/en not_active Expired
-
1970
- 1970-01-12 CH CH34470A patent/CH504251A/en not_active IP Right Cessation
- 1970-01-12 SE SE28070A patent/SE352551B/xx unknown
- 1970-01-13 AT AT26970A patent/AT311155B/en not_active IP Right Cessation
- 1970-01-13 DE DE19702001358 patent/DE2001358C3/en not_active Expired
- 1970-01-13 FR FR7001054A patent/FR2028222A1/fr not_active Withdrawn
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2120151A (en) * | 1979-09-17 | 1983-11-30 | Covington Technologies | Method and apparatus for welding |
CN103796771A (en) * | 2011-06-30 | 2014-05-14 | 发展机械及自动化股份公司 | Method and device for continuously producing mesh-type support |
CN103796771B (en) * | 2011-06-30 | 2015-09-16 | 发展机械及自动化股份公司 | For manufacturing the method and apparatus of girder truss continuously |
WO2013080142A1 (en) * | 2011-11-28 | 2013-06-06 | Antonios Anagnostopoulos | Method and system for the production of reinforcing dowel baskets for contracting-expanding joints |
US9561557B2 (en) | 2011-12-22 | 2017-02-07 | Antonios Anagnostopoulos | Method and system for the production of reinforcing dowel baskets for contracting-expanding joints |
CN110116264A (en) * | 2019-05-09 | 2019-08-13 | 四川九州光电子技术有限公司 | The lower electrode leveling device of welder |
CN112958937A (en) * | 2021-03-18 | 2021-06-15 | 济南奥图科技有限责任公司 | Automatic welding production line for net frame |
Also Published As
Publication number | Publication date |
---|---|
DE2001358A1 (en) | 1970-08-20 |
CH504251A (en) | 1971-03-15 |
DE2001358B2 (en) | 1978-08-24 |
SE352551B (en) | 1973-01-08 |
AT311155B (en) | 1973-11-12 |
FR2028222A1 (en) | 1970-10-09 |
DE2001358C3 (en) | 1979-04-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |