GB1099274A - Improvements in or relating to the control of flying shears - Google Patents
Improvements in or relating to the control of flying shearsInfo
- Publication number
- GB1099274A GB1099274A GB857965A GB857965A GB1099274A GB 1099274 A GB1099274 A GB 1099274A GB 857965 A GB857965 A GB 857965A GB 857965 A GB857965 A GB 857965A GB 1099274 A GB1099274 A GB 1099274A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- shear
- integrator
- speed
- shears
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Feedback Control In General (AREA)
Abstract
1,099,274. Automatic control of flying shears. ZAVODY V.I. LENINA PLZEN, NARODNI PODNIK. March 1, 1965 [March 2, 1964], No.8579/65. Heading G3R. In a control system for flying shears, signals UV1, UV2 representing respectively the speed of the material to be cut and the shear-speed are subtracted to form signal UV which is applied to integrator 1. When the material is being sheared, the speeds of the shears and material are synchronized, and, immediately afterwards, contact 1B is closed to discharge capacitor C through resistor R2. The integrator 1 is thus prevented from generating a signal during the discharge period, whereby signal VSl, representing the difference between the required cut length and the distance travelled by the shear-blades between two successive cuts, is fed to controller RS. The latter responds to vary the shear-speed in accordance with the magnitude and sense of the input signal. When the capacitor has discharged, the integrator comes into operation to generate signal US which is subtracted from the signal USl to produce a decreasing signal USR. When the latter has been reduced to zero, the cutting operation is effected.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS118664 | 1964-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1099274A true GB1099274A (en) | 1968-01-17 |
Family
ID=5345613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB857965A Expired GB1099274A (en) | 1964-03-02 | 1965-03-01 | Improvements in or relating to the control of flying shears |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1513248A1 (en) |
| GB (1) | GB1099274A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49890A (en) * | 1972-04-15 | 1974-01-07 | ||
| FR2345255A1 (en) * | 1976-03-25 | 1977-10-21 | Westinghouse Electric Corp | PARTS CUT CONTROL INSTALLATION |
| FR2515548A1 (en) * | 1981-10-30 | 1983-05-06 | Clesid Sa | DEVICE FOR ELECTRICALLY CONTROLLING A ROTARY SHEAR |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1299796B1 (en) * | 1998-05-19 | 2000-04-04 | Simac Spa | HIGH SPEED CUTTING METHOD FOR LAMINATES IN CONTINUOUS ADVANCE AND CUTTING GROUP DESIGNED TO OPERATE WITH |
| IT1302823B1 (en) * | 1998-12-23 | 2000-09-29 | Danieli & C Ohg Sp | CONTINUOUS ROTATION SHEAR FOR LAMINATED PRODUCTS AND RELATED CUTTING PROCEDURE |
-
1965
- 1965-03-01 GB GB857965A patent/GB1099274A/en not_active Expired
- 1965-03-02 DE DE19651513248 patent/DE1513248A1/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49890A (en) * | 1972-04-15 | 1974-01-07 | ||
| JPS5246385B2 (en) * | 1972-04-15 | 1977-11-24 | ||
| FR2345255A1 (en) * | 1976-03-25 | 1977-10-21 | Westinghouse Electric Corp | PARTS CUT CONTROL INSTALLATION |
| FR2515548A1 (en) * | 1981-10-30 | 1983-05-06 | Clesid Sa | DEVICE FOR ELECTRICALLY CONTROLLING A ROTARY SHEAR |
| EP0078745A1 (en) * | 1981-10-30 | 1983-05-11 | Clecim Sa | Electrical control apparatus for a flying shear |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1513248A1 (en) | 1969-07-03 |
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