GB990492A - Improvements in control means for tools arranged to act on moving material - Google Patents
Improvements in control means for tools arranged to act on moving materialInfo
- Publication number
- GB990492A GB990492A GB894563A GB894563A GB990492A GB 990492 A GB990492 A GB 990492A GB 894563 A GB894563 A GB 894563A GB 894563 A GB894563 A GB 894563A GB 990492 A GB990492 A GB 990492A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- tube
- cranks
- driven
- cut
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D36/00—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut
- B23D36/0008—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices
- B23D36/0033—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length
- B23D36/0041—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length the tool moving continuously
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
990,492. Automatic speed control systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 23,1963 [March 6, 1963], No. 8945/63. Heading G3R. In a flying tool control system having a circular saw 7 carried by a bar 13 mounted between cranks 15 to cut a moving tube 3 issuing from a tube mill, the speed of the cranks is controlled firstly in accordance with the speed of the moving tube during cutting, and secondly cyclically during the remainder of the revolution of the crank; the relative effectiveness of the two control components being adjustable to vary the cut length. The field 25 of a Ward Leonard set driving the cranks is controlled in accordance with the difference between signals from a tacho generator 31 driven from the tube mill, and a tachogenerator 29 driven from the WL set. In addition a further control signal dependent on the position of the cranks is derived from a selsyn 47 driven from the WL set and energized from a constant frequency generator 43 having its field energized according to tube speed by tachogenerator 31. This output signal from the selsyn is processed in a phase sense discriminater 49 and subtraction unit 57 to provide a cyclically varying signal, a proportion of which is picked off by potentiometer 61 to determine the crank speed for the remainder of the revolution, and hence the cut tube length. The range of resulting control signals relative to the steady tube speed signal are illustrated in Figs. 6,7 (not shown).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB894563A GB990492A (en) | 1963-03-06 | 1963-03-06 | Improvements in control means for tools arranged to act on moving material |
| FR966340A FR1389789A (en) | 1963-03-06 | 1964-03-06 | Improvements to flying tools control devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB894563A GB990492A (en) | 1963-03-06 | 1963-03-06 | Improvements in control means for tools arranged to act on moving material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB990492A true GB990492A (en) | 1965-04-28 |
Family
ID=9862365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB894563A Expired GB990492A (en) | 1963-03-06 | 1963-03-06 | Improvements in control means for tools arranged to act on moving material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB990492A (en) |
-
1963
- 1963-03-06 GB GB894563A patent/GB990492A/en not_active Expired
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