GB1212327A - Improvements in or relating to hydraulic circuits for drives of processing machines - Google Patents
Improvements in or relating to hydraulic circuits for drives of processing machinesInfo
- Publication number
- GB1212327A GB1212327A GB3214069A GB3214069A GB1212327A GB 1212327 A GB1212327 A GB 1212327A GB 3214069 A GB3214069 A GB 3214069A GB 3214069 A GB3214069 A GB 3214069A GB 1212327 A GB1212327 A GB 1212327A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- chamber
- piston
- valve
- hydraulic motor
- 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
- 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/68—Mould opening, closing or clamping devices hydro-mechanical
- B29C45/681—Mould opening, closing or clamping devices hydro-mechanical using a toggle mechanism as mould clamping device
-
- 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
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/022—Systems essentially incorporating special features for controlling the speed or actuating force of an output member in which a rapid approach stroke is followed by a slower, high-force working stroke
-
- 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
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/024—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
- F15B2211/3133—Regenerative position connecting the working ports or connecting the working ports to the pump, e.g. for high-speed approach stroke
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
- F15B2211/41536—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve being connected to multiple ports of an output member
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/775—Combined control, e.g. control of speed and force for providing a high speed approach stroke with low force followed by a low speed working stroke with high force, e.g. for a hydraulic press
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
1,212,327. Hydraulic motor control circuit. PLASTMASCHINENWERK FREITAL VEB. June 25, 1969, No.32140/69. Heading F1P. A hydraulic motor for initial advance at a relatively high speed under low load followed by slower advance under high load e. g. closure of an injection moulding machine comprises a cylinder 2 divided by a working piston 1 into chambers 12, 13 which former chamber is supplied by a constant volume pump delivering through a line 9, a spool valve 10 and a line 11 and also with fluid exhausting from chamber 13 past a non-return valve 8 and a line 7 leading to line 9 until such time as a control piston 14 carried by the rod 15 of piston 1 uncovers a port 17 through which fluid from chamber 13 is exhausted to a low pressure reservoir 6 via a line 3 and the valve 10, thus relieving back pressure on piston 1 and allowing it to complete its forward stroke at high pressure but at reduced speed. The return stroke of piston 1 is effected at high speed by switching the spool valve 10 so that it connects line 9 to chamber 13 through lines 3 and 4, whilst exhaust from chamber 12 is connected to the low pressure reservoir 6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3214069A GB1212327A (en) | 1969-06-25 | 1969-06-25 | Improvements in or relating to hydraulic circuits for drives of processing machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3214069A GB1212327A (en) | 1969-06-25 | 1969-06-25 | Improvements in or relating to hydraulic circuits for drives of processing machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1212327A true GB1212327A (en) | 1970-11-11 |
Family
ID=10333919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3214069A Expired GB1212327A (en) | 1969-06-25 | 1969-06-25 | Improvements in or relating to hydraulic circuits for drives of processing machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1212327A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007107428A3 (en) * | 2006-03-17 | 2007-11-08 | Hydraulik Ring Gmbh | Hydraulic circuit, especially for camshaft adjusters, and corresponding control element |
US7836857B2 (en) | 2006-03-17 | 2010-11-23 | Hydraulik-Ring Gmbh | Hydraulic circuit, particularly for camshaft adjusters, and corresponding control element |
US8453616B2 (en) | 2009-10-27 | 2013-06-04 | Hilite Germany Gmbh | Vane-type motor cam phaser with a friction disc and mounting method |
US8505582B2 (en) | 2010-05-03 | 2013-08-13 | Hilite Germany Gmbh | Hydraulic valve |
US8662040B2 (en) | 2010-04-10 | 2014-03-04 | Hilite Germany Gmbh | Oscillating-motor camshaft adjuster having a hydraulic valve |
US8752514B2 (en) | 2010-12-20 | 2014-06-17 | Hilite Germany Gmbh | Hydraulic valve for an oscillating motor adjuster |
-
1969
- 1969-06-25 GB GB3214069A patent/GB1212327A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007107428A3 (en) * | 2006-03-17 | 2007-11-08 | Hydraulik Ring Gmbh | Hydraulic circuit, especially for camshaft adjusters, and corresponding control element |
JP2009530526A (en) * | 2006-03-17 | 2009-08-27 | ヒドラウリク−リング・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Camshaft timing adjuster and hydraulic circuit of its control element |
US7836857B2 (en) | 2006-03-17 | 2010-11-23 | Hydraulik-Ring Gmbh | Hydraulic circuit, particularly for camshaft adjusters, and corresponding control element |
US7946266B2 (en) | 2006-03-17 | 2011-05-24 | Hydraulik-Ring Gmbh | Hydraulic circuit, particularly for camshaft adjusters, and corresponding control element |
JP2012207671A (en) * | 2006-03-17 | 2012-10-25 | Hilite Germany Gmbh | Cam shaft timing adjuster and hydraulic circuit of control element thereof |
US8453616B2 (en) | 2009-10-27 | 2013-06-04 | Hilite Germany Gmbh | Vane-type motor cam phaser with a friction disc and mounting method |
US8794201B2 (en) | 2009-10-27 | 2014-08-05 | Hilite Germany Gmbh | Vane-type motor cam phaser with a friction disc and method for mounting a friction disc on a rotor |
US8662040B2 (en) | 2010-04-10 | 2014-03-04 | Hilite Germany Gmbh | Oscillating-motor camshaft adjuster having a hydraulic valve |
US8505582B2 (en) | 2010-05-03 | 2013-08-13 | Hilite Germany Gmbh | Hydraulic valve |
US8752514B2 (en) | 2010-12-20 | 2014-06-17 | Hilite Germany Gmbh | Hydraulic valve for an oscillating motor adjuster |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |