GB1364260A - Folding strip - Google Patents
Folding stripInfo
- Publication number
- GB1364260A GB1364260A GB4968571A GB4968571A GB1364260A GB 1364260 A GB1364260 A GB 1364260A GB 4968571 A GB4968571 A GB 4968571A GB 4968571 A GB4968571 A GB 4968571A GB 1364260 A GB1364260 A GB 1364260A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- louvred
- clamps
- rollers
- faces
- 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
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/02—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
1364260 Corrugating strip; punching; making heat exchanger fins BRITISH ALUMINIUM CO Ltd 26 Oct 1971 49685/71 Headings B3E B3A and B3W Metal strip is corrugated by passing the strip intermittently through a folding device. Aluminium strip 1 drawn from a coil 2 is passed between guides 3 by means of clamps 4, 8 pneumatically-operated in response to a signal from a micro-switch 6 via a relay valve 7. Clamp members 4a, 4b may comprise punch dies 5 so that the strip may be louvred as it is passed along by the clamps in a step-wise fashion to a folding block. The folding block comprises block halves 9, 10 which have respective inclined faces 9a, 10a which make an angle with the strip of less than 90 degrees. A pivotally reciprocable frame 11, carrying rollers 12, 13 slidable on respective rods 12a, 13a and urged by springs 12b, 13b, operates to cause alternate step-wise corrugating about faces 9a, 10a with rollers 12, 13. The strip then passes through a unit (not shown) in which the number of corrugations per unit length of strip is adjusted. Such corrugated, louvred strip is suitable for use as heat exchanger fins. Both the reciprocable frame and the clamps are driven by a crankshaft 14 and cam 15. The surfaces of blocks 9, 10 are made of material that will not damage or contaminate the strip, e.g. P.V.C. plastics, nylon and for louvred strip the folding block faces and rollers are profiled so that they contact the strip in between the louvred regions. The dies 5, which are readily attachable and detachable, are made of steel or alloy material or tungsten carbide. The width of the strip can be varied and the spacing between the folds can be adjusted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4968571A GB1364260A (en) | 1971-10-26 | 1971-10-26 | Folding strip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4968571A GB1364260A (en) | 1971-10-26 | 1971-10-26 | Folding strip |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1364260A true GB1364260A (en) | 1974-08-21 |
Family
ID=10453190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4968571A Expired GB1364260A (en) | 1971-10-26 | 1971-10-26 | Folding strip |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1364260A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4179781A (en) * | 1976-07-26 | 1979-12-25 | Karen L. Beckmann | Method for forming a heat exchanger core |
FR2454855A1 (en) * | 1979-04-28 | 1980-11-21 | Rentrop Hubbert & Wagner | DEVICE FOR MANUFACTURING A TOOTHED STRIP FROM A PLANE STEEL STRIP |
RU2516322C2 (en) * | 2012-01-11 | 2014-05-20 | Открытое Акционерное Общество "Авиационная Холдинговая Компания "Сухой" | Mould for corrugated parts forming from blanks |
-
1971
- 1971-10-26 GB GB4968571A patent/GB1364260A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4179781A (en) * | 1976-07-26 | 1979-12-25 | Karen L. Beckmann | Method for forming a heat exchanger core |
FR2454855A1 (en) * | 1979-04-28 | 1980-11-21 | Rentrop Hubbert & Wagner | DEVICE FOR MANUFACTURING A TOOTHED STRIP FROM A PLANE STEEL STRIP |
RU2516322C2 (en) * | 2012-01-11 | 2014-05-20 | Открытое Акционерное Общество "Авиационная Холдинговая Компания "Сухой" | Mould for corrugated parts forming from blanks |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |