GB1445858A - Method of and apparatus for controlling an injection moulding machine - Google Patents

Method of and apparatus for controlling an injection moulding machine

Info

Publication number
GB1445858A
GB1445858A GB5341973A GB5341973A GB1445858A GB 1445858 A GB1445858 A GB 1445858A GB 5341973 A GB5341973 A GB 5341973A GB 5341973 A GB5341973 A GB 5341973A GB 1445858 A GB1445858 A GB 1445858A
Authority
GB
United Kingdom
Prior art keywords
injection moulding
pressure control
valve
controlling
main
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
Application number
GB5341973A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissei Plastic Industrial Co Ltd
Original Assignee
Nissei Plastic Industrial Co Ltd
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 Nissei Plastic Industrial Co Ltd filed Critical Nissei Plastic Industrial Co Ltd
Publication of GB1445858A publication Critical patent/GB1445858A/en
Expired legal-status Critical Current

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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/531—Drive means therefor
    • 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
    • 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
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • 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
    • F15B2211/3127—Floating position connecting the working ports and 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/575—Pilot pressure control
    • 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
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6306—Electronic controllers using input signals representing a pressure
    • F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load 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
    • F15B2211/60—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)
  • Fluid-Pressure Circuits (AREA)

Abstract

1445858 Injection moulding; control NISSEI PLASTICS INDUSTRIAL CO Ltd 16 Nov 1973 [17 Nov 1972] 53419/73 Heading B5A The injection speed and pressure of an injection moulding machine are controlled by controlling the hydraulic pressure supplied to a cylinder 1 by means of a plurality of electrically operable pressure control valves V 1 ... V 4 each of which is capable of assuming an operative or inoperative state independently of the others and which are operated successively one at a time. The cylinder 1 contains a piston 2 connected to an injection screw 4, and is connected through a valve SOLa and main fluid supply line to a pump P. A main pressure control valve 3 is connected to the main supply line and to four parallel connected circuits each comprising a solenoid operated valve SOL 1 ... SOL 4 and a pressure control valve V 1 ... V 4 . The valves V 1 ... V 4 are brought into operation in sequence by means of a limit switch LS1 and two timers (Fig. 2, not shown) or by means of three adjustable timers (Fig. 4, not shown).
GB5341973A 1972-11-17 1973-11-16 Method of and apparatus for controlling an injection moulding machine Expired GB1445858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11483072A JPS4974251A (en) 1972-11-17 1972-11-17

Publications (1)

Publication Number Publication Date
GB1445858A true GB1445858A (en) 1976-08-11

Family

ID=14647745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5341973A Expired GB1445858A (en) 1972-11-17 1973-11-16 Method of and apparatus for controlling an injection moulding machine

Country Status (6)

Country Link
JP (1) JPS4974251A (en)
CA (1) CA1028815A (en)
DE (1) DE2357115A1 (en)
FR (1) FR2207018B1 (en)
GB (1) GB1445858A (en)
IT (1) IT1021516B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331068U (en) * 1976-08-25 1978-03-17

Also Published As

Publication number Publication date
JPS4974251A (en) 1974-07-17
FR2207018B1 (en) 1977-08-19
DE2357115A1 (en) 1974-05-30
FR2207018A1 (en) 1974-06-14
CA1028815A (en) 1978-04-04
IT1021516B (en) 1978-02-20
AU6247373A (en) 1975-05-15

Similar Documents

Publication Publication Date Title
GB1515152A (en) Hydraulic control apparatus
SG98392G (en) Hydraulic device for the injection unit of a plastic material injection-moulding machine
GB1405060A (en) Machine for dosing two components into a mixing chamber
GB1518735A (en) Control apparatus for a pump
GB1460291A (en) Injection moulding machines
GB1202673A (en) Hydraulic supply systems
ES342075A1 (en) Liquid fuel pumping apparatus
SE7508459L (en) LOAD LIMITATION SYSTEM
GB1091679A (en) Improvements in devices for varying the beginning of delivery in fuel injection pumps
GB1445858A (en) Method of and apparatus for controlling an injection moulding machine
GB1422532A (en) Hydraulic actuating arrangement
GB1244976A (en) Hydraulic control apparatus and practical application thereof
ES363836A1 (en) Method and apparatus for controlling the drive of pressure-fluid actuated machine elements
GB1377530A (en) Injection moulding
GB1324455A (en) Control equipment for an injection-moulding machine
GB1487294A (en) Stroke-speed control device for hydraulic unit
GB985624A (en) Improved fluid control valve
ES385788A1 (en) Control apparatus for fluid actuator
GB1428827A (en) Injection nozzle with relief reservoir
GB1097546A (en) Injection device for injection moulding machines
GB1490637A (en) Device for hydraulically controlling injecting holding and filling pressures in injection moulding machines
GB1303828A (en)
GB1332617A (en) Control slide valve for a hydraulic servo motor
ES8406108A1 (en) Fluid pressure actuated servo motor device.
ES423944A1 (en) Device for controlling the reciprocation of a working piston

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19931115