GB1427807A - Control of presses - Google Patents
Control of pressesInfo
- Publication number
- GB1427807A GB1427807A GB2164073A GB2164073A GB1427807A GB 1427807 A GB1427807 A GB 1427807A GB 2164073 A GB2164073 A GB 2164073A GB 2164073 A GB2164073 A GB 2164073A GB 1427807 A GB1427807 A GB 1427807A
- Authority
- GB
- United Kingdom
- Prior art keywords
- press
- separation
- value
- forging
- correction factor
- 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
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Control Of Presses (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
1427807 Press control systems DEMAG AG 7 May 1973 [13 May 1972] 21640/73 Heading B3H The separation X of a pair of dies of a press, such as a forging press, is determined during operation of the press by measuring the separation Y of a pair of relatively movable points on the press and applying a variable correction factor f to the y value to determine the true X value which is compared with the desired X value in a comparator 15 to produce a correction signal C. The separation Y is measured by a transducer 10 and a pressure responsive transducer 11 is programmed by digital or analogue signals representing a pressure-correction factor relationship, Fig. 3 (not shown). The correction factor takes into account distortion of the press frame and press bed. A further correction signal S can be applied from a transmitter 13 responsive to temperature changes and the forging speed. The correction signal C is used in the automatic control of the press or to provide a continuous visual display of the thickness of the forging or a visual or audible indication when the required thickness is achieved.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722223464 DE2223464C3 (en) | 1972-05-13 | Method for controlling the thickness of hydraulically operated forging presses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1427807A true GB1427807A (en) | 1976-03-10 |
Family
ID=5844836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2164073A Expired GB1427807A (en) | 1972-05-13 | 1973-05-07 | Control of presses |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS4941252A (en) |
| FR (1) | FR2184757B3 (en) |
| GB (1) | GB1427807A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2536532A1 (en) * | 1975-08-16 | 1977-02-24 | Schloemann Siemag Ag | DEVICE FOR CORRECTING THE SET VALUE OF THE FORGING DIMENSIONS IN FORGING PRESSES USING V-SAETTELS AS FORGING TOOLS |
| JPS57127350U (en) * | 1981-01-30 | 1982-08-09 |
-
1973
- 1973-05-07 GB GB2164073A patent/GB1427807A/en not_active Expired
- 1973-05-11 FR FR7317196A patent/FR2184757B3/fr not_active Expired
- 1973-05-14 JP JP5346573A patent/JPS4941252A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2223464B2 (en) | 1975-07-03 |
| FR2184757A1 (en) | 1973-12-28 |
| JPS4941252A (en) | 1974-04-18 |
| DE2223464A1 (en) | 1973-11-22 |
| FR2184757B3 (en) | 1976-04-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |