IT1018215B - Dispositivo per il comando di pres sione e di velocita del processo di iniezione in macchine ad iniezione per la lavorazione di materia sinte tiche termoplastiche - Google Patents

Dispositivo per il comando di pres sione e di velocita del processo di iniezione in macchine ad iniezione per la lavorazione di materia sinte tiche termoplastiche

Info

Publication number
IT1018215B
IT1018215B IT9542/74A IT954274A IT1018215B IT 1018215 B IT1018215 B IT 1018215B IT 9542/74 A IT9542/74 A IT 9542/74A IT 954274 A IT954274 A IT 954274A IT 1018215 B IT1018215 B IT 1018215B
Authority
IT
Italy
Prior art keywords
injection
speed
pressure
control
synthetic materials
Prior art date
Application number
IT9542/74A
Other languages
English (en)
Original Assignee
Gkn Windsor Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gkn Windsor Gmbh filed Critical Gkn Windsor Gmbh
Application granted granted Critical
Publication of IT1018215B publication Critical patent/IT1018215B/it

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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/042—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in"
    • F15B11/0426—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in" by controlling the number of pumps or parallel valves switched on
    • 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
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F15B2211/20584—Combinations of pumps with high and low 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/255—Flow control functions
    • 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
    • F15B2211/30505—Non-return valves, i.e. check valves
    • 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
    • F15B2211/40—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
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40576—Assemblies of multiple valves
    • F15B2211/40592—Assemblies of multiple valves with multiple valves in parallel flow paths
    • 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
    • F15B2211/40—Flow control
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
    • 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
    • F15B2211/47—Flow control in one direction only
    • F15B2211/473—Flow control in one direction only without restriction in the reverse direction
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5153—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a 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
    • F15B2211/50—Pressure control
    • F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
    • 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
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
IT9542/74A 1973-08-08 1974-08-06 Dispositivo per il comando di pres sione e di velocita del processo di iniezione in macchine ad iniezione per la lavorazione di materia sinte tiche termoplastiche IT1018215B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732340096 DE2340096B2 (de) 1973-08-08 1973-08-08 Vorrichtung zur steuerung von druck und geschwindigkeit des einspritzvorganges einer spritzgussmaschine zur verarbeitung thermoplastischer kunststoffe

Publications (1)

Publication Number Publication Date
IT1018215B true IT1018215B (it) 1977-09-30

Family

ID=5889185

Family Applications (1)

Application Number Title Priority Date Filing Date
IT9542/74A IT1018215B (it) 1973-08-08 1974-08-06 Dispositivo per il comando di pres sione e di velocita del processo di iniezione in macchine ad iniezione per la lavorazione di materia sinte tiche termoplastiche

Country Status (8)

Country Link
US (1) US4023466A (it)
JP (1) JPS5045043A (it)
AT (1) AT341197B (it)
CH (1) CH568145A5 (it)
DE (1) DE2340096B2 (it)
FR (1) FR2240098B1 (it)
IT (1) IT1018215B (it)
SE (1) SE405335B (it)

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US4202175A (en) * 1977-05-13 1980-05-13 Hale Frank L Hydraulic control system for a dump truck
JPS5839098B2 (ja) * 1977-05-31 1983-08-27 トヨタ自動車株式会社 油圧式パワ−ブレ−キ装置
US4389178A (en) * 1981-07-31 1983-06-21 K. R. Komarek, Inc. Ram-type feeder for briquetting press
DE3306214A1 (de) * 1982-02-23 1983-09-08 Toshiba Kikai K.K., Tokyo Vorrichtung zum messen der einspritzgeschwindigkeit einer druckgussmaschine
JPS5983878A (ja) * 1982-11-04 1984-05-15 Toshiba Mach Co Ltd 流量調整弁
US5622527A (en) * 1986-05-08 1997-04-22 Proform Fitness Products, Inc. Independent action stepper
US4695038A (en) * 1986-08-22 1987-09-22 Giroux D William Means for pulling fiber optic cable through a conduit
US5103866A (en) * 1991-02-22 1992-04-14 Foster Raymond K Poppet valve and valve assemblies utilizing same
JP2000045728A (ja) * 1998-08-03 2000-02-15 Unisia Jecs Corp 内燃機関の油圧回路
DE10018576B4 (de) * 1999-04-19 2005-05-19 Tiefenbach Bergbautechnik Gmbh Sitz- und Halteventil
US6461279B1 (en) 2001-07-25 2002-10-08 Hai Pin Kuo Treadmill having dual treads for stepping exercises
US7455626B2 (en) 2001-12-31 2008-11-25 Nautilus, Inc. Treadmill
US7645214B2 (en) * 2004-02-26 2010-01-12 Nautilus, Inc. Exercise device with treadles
WO2007009077A2 (en) * 2005-07-13 2007-01-18 Swagelok Company Method and arrangement for actuation
JP5760769B2 (ja) * 2011-07-06 2015-08-12 株式会社豊田自動織機 射出装置
JP5672179B2 (ja) * 2011-07-06 2015-02-18 株式会社豊田自動織機 射出装置
US10493349B2 (en) 2016-03-18 2019-12-03 Icon Health & Fitness, Inc. Display on exercise device
US10625137B2 (en) 2016-03-18 2020-04-21 Icon Health & Fitness, Inc. Coordinated displays in an exercise device
US10625114B2 (en) 2016-11-01 2020-04-21 Icon Health & Fitness, Inc. Elliptical and stationary bicycle apparatus including row functionality

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US1455211A (en) * 1920-02-21 1923-05-15 Kelly Valve Company Boiler-water-level controller
FR773709A (fr) * 1936-06-04 1934-11-24 Perfectionnements aux robinets à pointeau
US2185016A (en) * 1937-11-19 1939-12-26 Burdick Harry J Mccombs Valve
US2265800A (en) * 1938-11-18 1941-12-09 Micromatic Hone Corp Variable pressure honing tool and method
US2276895A (en) * 1938-11-18 1942-03-17 Vosseler Hydraulic transmission means
US2340489A (en) * 1940-03-14 1944-02-01 Bendix Aviat Corp Bypass valve
DE1011238B (de) * 1953-05-27 1957-06-27 Heinz Bechler Durch Arbeitskolben mit Hilfssteuerung betaetigtes Sicherheitsventil
US2708091A (en) * 1953-08-14 1955-05-10 Rim Ho Yun Convertible type pilot controlled piston valve
US3155365A (en) * 1960-10-28 1964-11-03 Hartung Pressure medium controlled liquid valve for automatic flow limitation devices
US3298389A (en) * 1964-07-07 1967-01-17 Rockwell Mfg Co Pressure balanced valve
US3426799A (en) * 1964-10-07 1969-02-11 Kinwell Dev Co Automatic valve
US3524386A (en) * 1968-06-11 1970-08-18 Sylvester R Cudnohufsky Hydraulic system for machine tool control
US3499286A (en) * 1968-10-15 1970-03-10 Bucyrus Erie Co Controllable hydraulic power unit
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US3739690A (en) * 1971-07-19 1973-06-19 Caterpillar Tractor Co Pilot operated control valve
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Also Published As

Publication number Publication date
FR2240098A1 (it) 1975-03-07
DE2340096A1 (de) 1975-03-06
DE2340096B2 (de) 1976-03-18
ATA592574A (de) 1977-05-15
SE405335B (sv) 1978-12-04
AT341197B (de) 1978-01-25
JPS5045043A (it) 1975-04-22
US4023466A (en) 1977-05-17
SE7409311L (it) 1975-02-10
FR2240098B1 (it) 1978-11-24
CH568145A5 (it) 1975-10-31

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