GB1339934A - Hydraulic press - Google Patents
Hydraulic pressInfo
- Publication number
- GB1339934A GB1339934A GB4312671A GB4312671A GB1339934A GB 1339934 A GB1339934 A GB 1339934A GB 4312671 A GB4312671 A GB 4312671A GB 4312671 A GB4312671 A GB 4312671A GB 1339934 A GB1339934 A GB 1339934A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- unit
- ram
- diaphragm
- plate
- 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
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Control Of Presses (AREA)
Abstract
1339934 Hydraulic press AMACKER & SCHMID AG 16 Sept 1971 [2 Dec 1970] 43126/71 Heading B5F An hydraulic press for use in glueing workpieces and stamping operations comprises a first pressing unit 5, 6, 9 for carrying out the approach stroke of a platen 3 under high speed and low power and a second pressing unit 12, 13, 14 for carrying out the pressing stroke under low speed and high power. The first unit comprises a cylinder 5 and a piston 6 formed by the upper end of a ram 4 and having a small effective surface area compared to that of a diaphragm 12 of the second unit. As shown, during a work cycle, pressure fluid is fed from a pump 23 into chamber 9 of the first unit via a valve 10 to force the ram 4 into contact with the workpiece against return springs 17. The valve 10 is then closed and pressure fluid is fed into chamber 14 of the cylinder 13 of the second unit so that the diaphragm 12 is forced down against a thrust plate 16 in contact with the cylinder 5. The plate 16 is provided with lugs 16a to limit the travel of the diaphragm 12. One or more bolts 19 may be provided on the cylinder 5 to pass through apertures in a ram plate 18 and a frame plate 20 to limit the stroke of the ram 4 relative to the cylinder 5 and to inhibit rotation of the cylinder 5. The piston 6 is provided with a sealing ring 7 sandwiched between slip rings 8. The frame 1 may comprise a steel slab. The press may be manually or automatically controlled. The latter may depend upon measurement of fluid pressure or volume or of time. A relief valve and pressure fluid accumulator may be provided. The hydraulic circuit shown is described.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1781070A CH517586A (en) | 1970-12-02 | 1970-12-02 | Hydraulic press |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1339934A true GB1339934A (en) | 1973-12-05 |
Family
ID=4428259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4312671A Expired GB1339934A (en) | 1970-12-02 | 1971-09-16 | Hydraulic press |
Country Status (7)
Country | Link |
---|---|
US (1) | US3756145A (en) |
AT (1) | AT309224B (en) |
CH (1) | CH517586A (en) |
DE (1) | DE2147306A1 (en) |
FR (1) | FR2117059A5 (en) |
GB (1) | GB1339934A (en) |
IT (1) | IT939034B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114673703A (en) * | 2022-03-23 | 2022-06-28 | 北京天玛智控科技股份有限公司 | Stop valve |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2297718A1 (en) * | 1975-01-20 | 1976-08-13 | Promecan Sisson Lehmann | ELEMEN CONTROL EQUIPMENT |
US3940930A (en) * | 1975-01-20 | 1976-03-02 | Package Machinery Company | Hydraulic system for injection molding machine |
GB1594283A (en) * | 1978-02-16 | 1981-07-30 | Purpose Eng | Punching device |
US4823658A (en) * | 1985-10-18 | 1989-04-25 | Spicer Andrew I | Punch presses |
SE468177B (en) * | 1990-09-18 | 1992-11-16 | Volvo Ab | READY CULLED |
US6983690B2 (en) * | 2003-06-03 | 2006-01-10 | Reefdale Pty Ltd | Transfer heat press |
DE102016101631A1 (en) | 2016-01-29 | 2017-08-03 | Siempelkamp Maschinen- Und Anlagenbau Gmbh | Press for producing a component from a fiber composite material |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US512790A (en) * | 1894-01-16 | Cotton-press | ||
US1062289A (en) * | 1911-01-09 | 1913-05-20 | Liquid Forged Steel Company | Apparatus for making castings. |
US1955278A (en) * | 1930-02-24 | 1934-04-17 | Oilgear Co | Hydraulic press |
US1937007A (en) * | 1930-12-30 | 1933-11-28 | Maschf Augsburg Nuernberg Ag | Hydraulic press control mechanism |
US2786409A (en) * | 1953-06-15 | 1957-03-26 | Robert W Claire | Pneumatic dental press |
US3290919A (en) * | 1963-12-18 | 1966-12-13 | Cincinnati Milling Machine Co | High pressure hydraulic forming press |
US3315594A (en) * | 1964-10-13 | 1967-04-25 | Herbert H Simshauser | Machine for crushing cans, bottles and the like |
-
1970
- 1970-12-02 CH CH1781070A patent/CH517586A/en not_active IP Right Cessation
- 1970-12-21 AT AT1150670A patent/AT309224B/en not_active IP Right Cessation
-
1971
- 1971-09-16 GB GB4312671A patent/GB1339934A/en not_active Expired
- 1971-09-17 DE DE19712147306 patent/DE2147306A1/en active Pending
- 1971-10-07 IT IT29617/71A patent/IT939034B/en active
- 1971-10-20 FR FR7137672A patent/FR2117059A5/fr not_active Expired
- 1971-10-21 US US00191417A patent/US3756145A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114673703A (en) * | 2022-03-23 | 2022-06-28 | 北京天玛智控科技股份有限公司 | Stop valve |
Also Published As
Publication number | Publication date |
---|---|
US3756145A (en) | 1973-09-04 |
CH517586A (en) | 1972-01-15 |
AT309224B (en) | 1973-08-10 |
FR2117059A5 (en) | 1972-07-21 |
IT939034B (en) | 1973-02-10 |
DE2147306A1 (en) | 1972-06-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |