GB1109951A - Hammers - Google Patents
HammersInfo
- Publication number
- GB1109951A GB1109951A GB3804/66A GB380466A GB1109951A GB 1109951 A GB1109951 A GB 1109951A GB 3804/66 A GB3804/66 A GB 3804/66A GB 380466 A GB380466 A GB 380466A GB 1109951 A GB1109951 A GB 1109951A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valves
- platens
- liquid
- impact
- ducts
- 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
- B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
- B21J7/20—Drives for hammers; Transmission means therefor
- B21J7/22—Drives for hammers; Transmission means therefor for power hammers
- B21J7/34—Drives for hammers; Transmission means therefor for power hammers operating both the hammer and the anvil, so-called counter-tup
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Control Of Presses (AREA)
Abstract
1, 109, 951. Impact hammers. LANGENSTEIN & SCHEMANN A.G. 27 Jan., 1966 [10 Feb., 1965], No. 3804/66. Heading B3H. In a double-drive impact press the platens 6, 7 are actuated on their working strokes by pressure gas and are retracted by pressure liquid in inner chambers 11, 12. The platens carry dies 8, 9 and are slidable in guides (50a), Fig. 2 (not shown), of the press frame (50). Pistons 4, 5 connected to the platens are subjected on their outer ends to continuous gas pressure in chambers 1, 2 connected to enlarged chambers 1b, 2b and supplied with gas from bottle 21. The inner chambers 11, 12 are connected by large area liquid links in ducts 14a, 14b and ports 13c to coupling cylinders 13a, 13b containing coupling pistons 15a, 15b connected to the opposite platens. Ducts 14a, 14b can be closed or opened by blocking valves 16a, 16b. These are held closed by pressure liquid in ducts 30, 31 controlled by a main control valve 33 operated by magnetic pilot valves 47, 48. Valve 47 causes the blockings valves 16a, 16b to be released for initiating an impact stroke; valve 48 effects closing of the blocking valves by pressure liquid. The liquid is supplied from reservoir 25 by pumps 23, 24. Auxiliary control valves 34 controlled by magnetic pilot valves 43, 44 are also provided for operating the press, particularly for providing a series of impacts which may be of different stroke lengths. These pilot valves 43, 44 are controlled by adjustable limit switches (58a), (58b), Fig. 5 (not shown), actuated by cams (59) on the platens. The switches are adjusted by pairs of rack-andpinion mechanisms (57), (60a). Control liquid for actuating the various valves is supplied to duct 39 by a separate pump 38. Inching control valves 32a, 32b are also provided. Setting screws 60b are used to adjust the degree of movement of the blocking valves 16a, 16b for varying the impact of the platens. In another embodiment, Figs. 3, 4, the coupling pistons 15a, 15b are stationary and their cylinders are carried by the platens.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19661552835 DE1552835B2 (en) | 1966-01-22 | 1966-12-15 | COUNTERSHOT FORMING MACHINE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF0045183 | 1965-02-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1109951A true GB1109951A (en) | 1968-04-18 |
Family
ID=7100377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3804/66A Expired GB1109951A (en) | 1965-02-10 | 1966-01-27 | Hammers |
Country Status (2)
Country | Link |
---|---|
US (1) | US3429174A (en) |
GB (1) | GB1109951A (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT271143B (en) * | 1967-10-09 | 1969-05-27 | Langestein & Schemann Ag | Machine for shaping a workpiece between two bears |
CS149914B2 (en) * | 1969-06-28 | 1973-08-23 | ||
DE1941806A1 (en) * | 1969-08-16 | 1971-02-25 | Eumuco Ag Fuer Maschb | Forming machine for processing materials that can be deformed under heat, in particular heated metals |
DE2057958B2 (en) * | 1970-11-25 | 1978-10-12 | Schloemann-Siemag Ag, 4000 Duesseldorf | Hydraulically driven counterblow hammer |
DE2221341A1 (en) * | 1972-05-02 | 1973-11-15 | Schloemann Ag | HYDRAULIC FORGING MACHINE FOR FORGING STUDS OR THE SAME |
US3822579A (en) * | 1972-10-24 | 1974-07-09 | V Kononenko | High-speed counterstroke hammer |
AT350879B (en) * | 1976-10-14 | 1979-06-25 | Wefoba | COUNTER-ROCKING MACHINE |
US4191045A (en) * | 1978-07-11 | 1980-03-04 | Abramov Valentin S | Power hammer with opposed movement of ram and bolster |
US4478566A (en) * | 1982-02-18 | 1984-10-23 | Rca Corporation | Apparatus for injection molding an article |
US4796428A (en) * | 1983-01-17 | 1989-01-10 | Oilgear Towler, Inc. | Double-acting forging hammer and method |
CN102489650B (en) * | 2011-11-18 | 2014-02-05 | 中国重型机械研究院有限公司 | Automatic liquid supplementing and draining system with liquid filling tank |
US9573185B2 (en) * | 2013-07-12 | 2017-02-21 | The Boeing Company | Apparatus and method for momentum-balanced forging |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2583049A (en) * | 1949-12-17 | 1952-01-22 | Louvroil Montbard Aulnoye Sa | Drop hammer |
US2655002A (en) * | 1952-09-11 | 1953-10-13 | Hydropress Inc | Liquid pressure transmission system |
GB964008A (en) * | 1960-02-11 | 1964-07-15 | Hydraulik Gmbh | Method and apparatus for the production of blanks from cast ingots |
GB1112181A (en) * | 1963-11-05 | 1968-05-01 | Nat Res Dev | Improvements in or relating to impulse-forming and like machines |
-
1966
- 1966-01-27 GB GB3804/66A patent/GB1109951A/en not_active Expired
- 1966-02-09 US US526234A patent/US3429174A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3429174A (en) | 1969-02-25 |
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