IT1037908B - SERVO DEVICE FOR EQUIPMENT TO CONTROL THE PRESSURE AND THE QUANTITY OF THE PRESSURE FLUID IN HYDRAULIC DRIVES IN PARTICULAR OF DIE-CAST PROTECTION MACHINES - Google Patents
SERVO DEVICE FOR EQUIPMENT TO CONTROL THE PRESSURE AND THE QUANTITY OF THE PRESSURE FLUID IN HYDRAULIC DRIVES IN PARTICULAR OF DIE-CAST PROTECTION MACHINESInfo
- Publication number
- IT1037908B IT1037908B IT2307575A IT2307575A IT1037908B IT 1037908 B IT1037908 B IT 1037908B IT 2307575 A IT2307575 A IT 2307575A IT 2307575 A IT2307575 A IT 2307575A IT 1037908 B IT1037908 B IT 1037908B
- Authority
- IT
- Italy
- Prior art keywords
- pressure
- die
- equipment
- control
- servo device
- Prior art date
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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
- F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
- F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
- F15B11/125—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of digital actuators, i.e. actuators in which the total stroke is the sum of individual strokes
-
- 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
- B22D17/32—Controlling equipment
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/82—Hydraulic or pneumatic circuits
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2425737 | 1974-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1037908B true IT1037908B (en) | 1979-11-20 |
Family
ID=5916653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2307575A IT1037908B (en) | 1974-05-28 | 1975-05-06 | SERVO DEVICE FOR EQUIPMENT TO CONTROL THE PRESSURE AND THE QUANTITY OF THE PRESSURE FLUID IN HYDRAULIC DRIVES IN PARTICULAR OF DIE-CAST PROTECTION MACHINES |
Country Status (3)
Country | Link |
---|---|
BR (1) | BR7503321A (en) |
FR (1) | FR2273179A1 (en) |
IT (1) | IT1037908B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10246916B3 (en) * | 2002-10-08 | 2004-04-15 | Holter Regelarmaturen Gmbh & Co. Kg | Multi-stage throttle for flowing medium has several control cone/seat units, one adjustable independently of the others, and acting in closing direction with adjusting cylinder/piston units to prevent cavitation damages |
-
1975
- 1975-04-18 FR FR7512219A patent/FR2273179A1/en not_active Withdrawn
- 1975-05-06 IT IT2307575A patent/IT1037908B/en active
- 1975-05-27 BR BR7504250A patent/BR7503321A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BR7503321A (en) | 1976-04-20 |
FR2273179A1 (en) | 1975-12-26 |
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