GB698593A - Apparatus for applying low pressure advance and high pressure squeeze in the hydraulic operation of die casting dies - Google Patents
Apparatus for applying low pressure advance and high pressure squeeze in the hydraulic operation of die casting diesInfo
- Publication number
- GB698593A GB698593A GB2903551A GB2903551A GB698593A GB 698593 A GB698593 A GB 698593A GB 2903551 A GB2903551 A GB 2903551A GB 2903551 A GB2903551 A GB 2903551A GB 698593 A GB698593 A GB 698593A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- piston
- dies
- fluid
- die
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/26—Mechanisms or devices for locking or opening dies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86389—Programmer or timer
- Y10T137/86445—Plural, sequential, valve actuations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Casting Devices For Molds (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
698,593. Casting-machines. PLASCO, Ltd. Dec. 11, 1951 [July 16, 1951], No. 29035/51. Class 83 (i). An apparatus for controlling a hydraulic medium used for operating the dies of a die-casting machine comprises a cylinder for hydraulic fluid and two pistons therein, one forcing fluid out of the cylinder to bring the dies together and a supplemental piston which then acts on the fluid to cause a high pressure squeeze on the die when in closed position, both pistons being actuated by pneumatically operated means. Within a casing 10 is a hydraulic cylinder 11 communicating with the die-operating mechanism by a pipe 60. The liquid within the cylinder may be acted upon firstly by a piston 19 moved down against a spring 24 by a cam 25 and secondly by a supplemental piston 57 moved up by a pneumatic piston 55 operating in a comparatively large diameter cylinder 15. The casing 10 also includes a pneumatic cylinder 12 containing a piston 29, an upper extension of which is formed as a rack to rotate the cam 25 through a gear 28. In operation, pressure air is admitted to the base of the cylinder 12 to raise the piston 29 and so rotate the cam 25 which depresses a follower-roll 22 in the forked upper end of the piston 19. Fluid is thus forced along the pipe 60 to effect the closing of the dies. As piston 29 reaches the top of its stroke it uncovers a port (not shown) and allows air to enter the base of the cylinder 15 thus forcing the plunger 57 into the cylinder 11 to produce the final squeezing of the dies. On connecting the cylinder 12 to exhaust, pison 29 is returned by a spring 48 and pistons 19, 57 by the spring 24.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US698593XA | 1951-07-16 | 1951-07-16 | |
| US23700851 US2780836A (en) | 1951-07-16 | 1951-07-16 | Apparatus for applying low pressure advance and high pressure squeeze in the hydraulic operation of die casting dies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB698593A true GB698593A (en) | 1953-10-21 |
Family
ID=32911618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2903551A Expired GB698593A (en) | 1951-07-16 | 1951-12-11 | Apparatus for applying low pressure advance and high pressure squeeze in the hydraulic operation of die casting dies |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2780836A (en) |
| GB (1) | GB698593A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2922191A (en) * | 1955-12-02 | 1960-01-26 | United Shoe Machinery Corp | Molding machines for pressing and vulcanizing plastic materials |
| US3036337A (en) * | 1959-11-13 | 1962-05-29 | Fellows Gear Shaper Co | Injection molding machine with cushioning device |
| US3079632A (en) * | 1960-05-16 | 1963-03-05 | Federal Mogul Bower Bearings | High speed molding machine |
| US3456297A (en) * | 1965-06-22 | 1969-07-22 | Broderna Akessons Mas Fab Ab | Hydraulic mould locking devices |
| US3452397A (en) * | 1965-10-07 | 1969-07-01 | Rockford Machine Tool Co | Hydraulic actuator for an injection molding machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2173583A (en) * | 1936-04-21 | 1939-09-19 | Forichon Gaston Sebastien | Press and method of pressing |
| US2356634A (en) * | 1940-12-21 | 1944-08-22 | Opel Fritz Von | Apparatus for injection molding |
| US2355613A (en) * | 1941-03-05 | 1944-08-15 | Clearing Machine Corp | Press for molding plastic materials |
| US2396539A (en) * | 1943-01-25 | 1946-03-12 | E M B Co Ltd | Pressure intensifying mechanism |
| US2569174A (en) * | 1948-12-07 | 1951-09-25 | Automatic Injection Machines C | Thermoplastic injection molding apparatus |
-
1951
- 1951-07-16 US US23700851 patent/US2780836A/en not_active Expired - Lifetime
- 1951-12-11 GB GB2903551A patent/GB698593A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2780836A (en) | 1957-02-12 |
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