GB1417799A - Hydraulic press - Google Patents
Hydraulic pressInfo
- Publication number
- GB1417799A GB1417799A GB2427573A GB2427573A GB1417799A GB 1417799 A GB1417799 A GB 1417799A GB 2427573 A GB2427573 A GB 2427573A GB 2427573 A GB2427573 A GB 2427573A GB 1417799 A GB1417799 A GB 1417799A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- force
- piston
- rod
- pressure
- 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
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/068—Drive connections, e.g. pivotal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Presses (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
1417799 Hydraulic moulding press PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 22 May 1973 [25 May 1972] 24275/73 Heading B5A [Also in Division G3] An hydraulic press for pressing synthetic resin in a mould 7 comprises a piston 2 movable in a cylinder 1, means connected to the piston 2 for transmitting force from the piston 2 to the material in the mould 7, means including a servo valve 20 for supplying and withdrawing liquid to and from spaces 14, 21 on opposed sides of the piston 2, a first device for measuring the force transmitted by the transmitting means and a second device 32 for measuring the speed of the transmitting means, the output signals from these devices being applied to a control unit 31 in which the measured values of force and speed are compared with reference values and which controls the servo valve 20 so that the speed is maintained at the reference value as long as the force remains below the reference value and when the latter value is reached the force is controlled so that it does not exceed the reference value. The first device may measure the force on the rod 8 at reference 30 or the pressure in the mould 7. The transmitting means may comprise the rod 3 of piston 2, a hydrostatic thrust bearing and a plunger 8 for pressing the material in the mould 7. The thrust bearing which permits transverse play for the rod 8 may comprise a chamber 9 provided on the rod 8 and a plate 10 mounted on the rod 3 and provided with pressure chambers defined by recesses 11 which receive liquid from the space 14 via duct 12 and restrictions 13. The mould 7 may incorporate a pressure transducer which, when a desired pressure is reached in the mould 7, actuates control unit 31 to ensure the pressure is maintained.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7207024A NL7207024A (en) | 1972-05-25 | 1972-05-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1417799A true GB1417799A (en) | 1975-12-17 |
Family
ID=19816116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2427573A Expired GB1417799A (en) | 1972-05-25 | 1973-05-22 | Hydraulic press |
Country Status (6)
Country | Link |
---|---|
US (1) | US3825386A (en) |
JP (1) | JPS4943272A (en) |
DE (1) | DE2324839A1 (en) |
FR (1) | FR2185500B1 (en) |
GB (1) | GB1417799A (en) |
NL (1) | NL7207024A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2135785A (en) * | 1983-02-28 | 1984-09-05 | Fischer Ag Georg | Producing moulding compound test pieces |
GB2163383A (en) * | 1984-08-22 | 1986-02-26 | Saret | Method and machine for manufacturing bricks of compressed earth |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5119859B2 (en) * | 1972-03-25 | 1976-06-21 | ||
US4049762A (en) * | 1973-08-03 | 1977-09-20 | Harsco Corporation | Method of forming a pipe coupling |
US3885899A (en) * | 1974-08-05 | 1975-05-27 | Ford Motor Co | Apparatus for expanding a laminating interlayer |
CH570252A5 (en) * | 1974-08-07 | 1975-12-15 | Bucher Guyer Ag Masch | |
JPS5121276A (en) * | 1974-08-15 | 1976-02-20 | Mitsubishi Steel Mfg | YUATSUSHIKITOTSUGURUPURESUNIOKERU KAFUKABOSHIHOHO OYOBI SOCHI |
US4060362A (en) * | 1975-05-12 | 1977-11-29 | International Business Machines Corporation | Injection molding same cycle control |
JPS537884A (en) * | 1976-07-09 | 1978-01-24 | Serugeebuitsuchi Guri Anatorii | Overrpressure preventing device for use in press |
DE2825253A1 (en) * | 1978-06-08 | 1979-12-13 | Nitrochemie Gmbh | HYDRAULIC POWDER PRESS |
DE2825795C2 (en) * | 1978-06-13 | 1982-06-03 | Werner & Pfleiderer, 7000 Stuttgart | Method for building up pressure in a press and switching arrangement for carrying out the method |
US4317649A (en) * | 1980-05-12 | 1982-03-02 | Per-Fil Industries | Pellet molding apparatus |
US4457684A (en) * | 1981-02-24 | 1984-07-03 | Mts Systems Corporation | Hydraulic press |
US4470787A (en) * | 1983-05-11 | 1984-09-11 | Mts Systems Corporation | Hydraulic press |
GB2093399B (en) * | 1981-02-24 | 1985-07-10 | Mts System Corp | Hydraulic press |
US4458189A (en) * | 1982-08-06 | 1984-07-03 | Mts Systems Corporation | Control mode switching circuit |
DE3331648A1 (en) * | 1983-09-02 | 1985-03-28 | Philips Patentverwaltung Gmbh, 2000 Hamburg | DEVICE FOR CONTROLLING A DRIVE FOR MOVING TOOLS, IN PARTICULAR MOLDED PARTS OF AN INJECTION MOLDING MACHINE |
FR2566697B1 (en) * | 1984-06-27 | 1986-11-28 | Inoplast Sa | PROCESS AND APPARATUS FOR OPERATING CYCLE CONTROL IN THE MANUFACTURE OF SYNTHETIC MATERIALS FOLLOWING THE COMPRESSION MOLDING SYSTEM |
US4943400A (en) * | 1986-01-17 | 1990-07-24 | Data Card Japan Ltd. | Method of manufacturing printing and embossing type elements |
US4939918A (en) * | 1987-08-27 | 1990-07-10 | The Minster Machine Company | Monitorable and compensatable feedback tool and control system for a press |
US4945742A (en) * | 1987-08-27 | 1990-08-07 | The Minster Machine Company | Monitorable and compensatable feedback tool and control system for a press |
US5071603A (en) * | 1987-12-14 | 1991-12-10 | Kabushiki Kaisha Kobe Seiko Sho | Method of controlling hydraulic press |
DE3802761A1 (en) * | 1988-01-30 | 1989-08-10 | Krupp Gmbh | HYDRAULIC PRESS |
DE3805004C2 (en) * | 1988-02-18 | 1996-10-31 | Erfurt Umformtechnik Gmbh | Device for braking the ram of a hydraulic press |
FR2631821B1 (en) * | 1988-05-31 | 1990-09-07 | Oreal | MACHINE FOR COMPACTING POWDER, ESPECIALLY COSMETIC POWDER, AND METHOD FOR SUCH COMPACTION |
US4966538A (en) * | 1988-06-01 | 1990-10-30 | Buehler, Ltd. | Mounting press |
EP0361303B1 (en) * | 1988-09-26 | 1992-12-16 | Engel Maschinenbau Gesellschaft m.b.H. | Injection-moulding machine |
US5002475A (en) * | 1988-10-04 | 1991-03-26 | Intellex Corporation | Reaction injection molding apparatus |
FR2638118A1 (en) * | 1988-10-20 | 1990-04-27 | Adl Automation | METHOD AND APPARATUS FOR COMPRESSION AND CONTROL OF COMPRESSION OF PULVERULENT AND PRESSED MATERIALS BY APPLYING |
US4942004A (en) * | 1988-11-01 | 1990-07-17 | Cincinnati Milacron Inc. | Method and apparatus for regulating mold clamping force in an injection molding machine |
DE102011005189A1 (en) * | 2011-03-07 | 2012-09-13 | Krones Aktiengesellschaft | Process and apparatus for recycling compressed gas |
WO2014119213A1 (en) | 2013-01-29 | 2014-08-07 | 大八化学工業株式会社 | Flame retardant agent for resins, flame-retardant resin composition containing same, and method for producing organophosphorus compound |
JP6635944B2 (en) * | 2014-12-24 | 2020-01-29 | 大八化学工業株式会社 | Flame retardant resin composition |
JP7244085B2 (en) | 2017-11-10 | 2023-03-22 | 大八化学工業株式会社 | FLAME RETARDANT COMPOSITION AND FLAME RETARDANT THERMOPLASTIC RESIN COMPOSITION CONTAINING THE FLAME RETARDANT COMPOSITION |
EP3587010A1 (en) | 2018-06-26 | 2020-01-01 | MTH GbR Markus und Thomas Hiestand | Clamping device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2441925A (en) * | 1944-11-09 | 1948-05-18 | Oilgear Co | Centering device |
US2983956A (en) * | 1958-03-13 | 1961-05-16 | Essex Wire Corp | Injection molding machine |
US3395200A (en) * | 1964-12-14 | 1968-07-30 | Phillips Petroleum Co | Tension control of running thermoplastic filaments |
FR1511159A (en) * | 1966-12-19 | 1968-01-26 | Sp Kb Uralchermetavtomatika | Speed regulator of the plunger in the spinning on a hydraulic press |
FR1539204A (en) * | 1967-08-03 | 1968-09-13 | Plastimonde | Improvements to the plastic molding process by adjusting the control of the movement of the mold and the injection piston |
US3564883A (en) * | 1968-07-30 | 1971-02-23 | Cincinnati Shaper Co | Hydraulic press control |
US3749535A (en) * | 1971-10-14 | 1973-07-31 | Conwed Corp | Apparatus for extrusion of plastic net |
-
1972
- 1972-05-25 NL NL7207024A patent/NL7207024A/xx unknown
-
1973
- 1973-04-19 US US00352585A patent/US3825386A/en not_active Expired - Lifetime
- 1973-05-17 DE DE2324839A patent/DE2324839A1/en active Pending
- 1973-05-22 JP JP48056388A patent/JPS4943272A/ja active Pending
- 1973-05-22 GB GB2427573A patent/GB1417799A/en not_active Expired
- 1973-05-23 FR FR7318694A patent/FR2185500B1/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2135785A (en) * | 1983-02-28 | 1984-09-05 | Fischer Ag Georg | Producing moulding compound test pieces |
US4616508A (en) * | 1983-02-28 | 1986-10-14 | Georg Fischer Aktiengesellschaft | Method and apparatus for producing a test piece of molding compound useful in measuring properties thereof |
GB2163383A (en) * | 1984-08-22 | 1986-02-26 | Saret | Method and machine for manufacturing bricks of compressed earth |
Also Published As
Publication number | Publication date |
---|---|
DE2324839A1 (en) | 1973-12-06 |
US3825386A (en) | 1974-07-23 |
FR2185500A1 (en) | 1974-01-04 |
NL7207024A (en) | 1973-11-27 |
JPS4943272A (en) | 1974-04-23 |
FR2185500B1 (en) | 1978-11-03 |
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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 |