GB1034819A - Improvements in control means for flying shears - Google Patents
Improvements in control means for flying shearsInfo
- Publication number
- GB1034819A GB1034819A GB3469762A GB3469762A GB1034819A GB 1034819 A GB1034819 A GB 1034819A GB 3469762 A GB3469762 A GB 3469762A GB 3469762 A GB3469762 A GB 3469762A GB 1034819 A GB1034819 A GB 1034819A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- shear
- blades
- speed
- terminal
- 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)
- Shearing Machines (AREA)
Abstract
1,034,819. Automatic control of rotary shears. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 30, 1963 [Sept.11, 1962], No. 34697/62. Heading G3R. In a control system for a motor driving the blades of a flying shear, the voltage applied to terminal 39 indicates the length of strip to be cut off, the voltage applied to terminal 41 indicating the periphery of the circle swept by the shear-blades. A signal applied through terminal 49 holds integrating de - vices 33, 37, at zero until a desired starting-point relative to the strip is reached. Tachometer generators 15, 17, provide signals representing the shearspeed and strip-speed respectively,the output of device 37 representing the distance travelled by the strip, and that of the device 33 indicating the distance travelled by the shear blades. A summing device 43 receives inputs from the terminal 39 and the device 37. In summing device 45, the algebraical sum of the inputs to device 43 is added to the input from terminal 41 and the output from device 33. The output from device 45 thus represents the sum of the shear circle periphery and the time integral of the strip speed, less the sum of the desired length and the time integral of the shear speed, the integrals being taken from a datum point given by the making of the previous cut. The output of device 45 is fed to regulator 21 for controlling the speed of motor 13 which drives the blades, thereby enabling the blades to cut off the desired length of material. Potentiometers 14, 36, may be adjusted to vary the ratio between the shear-speed and strip-speed at the moment of contact. In another arrangement, the shears are driven by motor 113 coupled to pulse tachometer 115, a pulse tachmometer 117 being driven by the strip through gear 120. Pulses from the tachometers are fed to counter 129 connected to decoder 133 associated with regulator 137. Terminals 149, 151, serve for the application to the counter of setting signals representing respectively the predetermined length of strip and the periphery of the circle swept by the shear blades.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE637287D BE637287A (en) | 1962-09-11 | ||
| GB3469762A GB1034819A (en) | 1962-09-11 | 1962-09-11 | Improvements in control means for flying shears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3469762A GB1034819A (en) | 1962-09-11 | 1962-09-11 | Improvements in control means for flying shears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1034819A true GB1034819A (en) | 1966-07-06 |
Family
ID=10368839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3469762A Expired GB1034819A (en) | 1962-09-11 | 1962-09-11 | Improvements in control means for flying shears |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE637287A (en) |
| GB (1) | GB1034819A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114932265A (en) * | 2022-06-15 | 2022-08-23 | 中冶南方工程技术有限公司 | Flying shear control method and system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1298273B (en) * | 1964-11-02 | 1969-06-26 | Eastman Kodak Co | Polyethylene molding compounds |
-
0
- BE BE637287D patent/BE637287A/xx unknown
-
1962
- 1962-09-11 GB GB3469762A patent/GB1034819A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114932265A (en) * | 2022-06-15 | 2022-08-23 | 中冶南方工程技术有限公司 | Flying shear control method and system |
| CN114932265B (en) * | 2022-06-15 | 2023-06-23 | 中冶南方工程技术有限公司 | Flying shear control method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| BE637287A (en) |
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