JPS55245A - Plasticizing process control method for injection - Google Patents

Plasticizing process control method for injection

Info

Publication number
JPS55245A
JPS55245A JP7394078A JP7394078A JPS55245A JP S55245 A JPS55245 A JP S55245A JP 7394078 A JP7394078 A JP 7394078A JP 7394078 A JP7394078 A JP 7394078A JP S55245 A JPS55245 A JP S55245A
Authority
JP
Japan
Prior art keywords
screw
signals
resin
signal
pressure
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.)
Granted
Application number
JP7394078A
Other languages
Japanese (ja)
Other versions
JPS6260251B2 (en
Inventor
Shigeru Fujita
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine 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 Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP7394078A priority Critical patent/JPS55245A/en
Priority to GB7912700A priority patent/GB2019608B/en
Priority to DE2914944A priority patent/DE2914944C2/en
Publication of JPS55245A publication Critical patent/JPS55245A/en
Priority to US06/231,214 priority patent/US4326255A/en
Publication of JPS6260251B2 publication Critical patent/JPS6260251B2/ja
Granted 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
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/766—Measuring, controlling or regulating the setting or resetting of moulding conditions, e.g. before starting a cycle
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To fill resin having a constant temperature into a cavity, by allowing a temperature of resin in a metering process to be maintained in such a manner that anticipates presiously the change in a resin temperature according to the variation of a resin flow rate. CONSTITUTION:When a screw 4, wich have completed a filling process, moves backward and comes into a metering process, signal changing-over devices 27 and 28 can be functioned by signals supplied from a comparator 20. When a detecting signal of a screw position detecting potentiometer 10 coincides with signals of position signal setters 18 to 16, the signals are changed-over in order, and thus, signals of control signal setters 23 to 26, which set a number of screw rotations and a screw back pressure, work on an electromagnetic proportional flow control valve 8 and an electromagnetic proportional pressure control valve 9, and thus, a given number of screw rotations and a given screw back-pressure are set.
JP7394078A 1978-04-13 1978-06-19 Plasticizing process control method for injection Granted JPS55245A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP7394078A JPS55245A (en) 1978-06-19 1978-06-19 Plasticizing process control method for injection
GB7912700A GB2019608B (en) 1978-04-13 1979-04-11 Controlling injection moulding
DE2914944A DE2914944C2 (en) 1978-04-13 1979-04-12 Device for controlling the speed and the back pressure during the plasticizing and dosing process of a plastic screw injection molding machine
US06/231,214 US4326255A (en) 1978-04-13 1981-02-02 Apparatus for controlling plasticizing process of in-line screw-type injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7394078A JPS55245A (en) 1978-06-19 1978-06-19 Plasticizing process control method for injection

Publications (2)

Publication Number Publication Date
JPS55245A true JPS55245A (en) 1980-01-05
JPS6260251B2 JPS6260251B2 (en) 1987-12-15

Family

ID=13532605

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7394078A Granted JPS55245A (en) 1978-04-13 1978-06-19 Plasticizing process control method for injection

Country Status (1)

Country Link
JP (1) JPS55245A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862029A (en) * 1981-10-08 1983-04-13 Toshiba Mach Co Ltd Injection and plasticizing apparatus of injection molder
JPS62132624A (en) * 1985-12-05 1987-06-15 Toshiba Mach Co Ltd Raw material supply device of injection molding machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862029A (en) * 1981-10-08 1983-04-13 Toshiba Mach Co Ltd Injection and plasticizing apparatus of injection molder
JPS6359367B2 (en) * 1981-10-08 1988-11-18
JPS62132624A (en) * 1985-12-05 1987-06-15 Toshiba Mach Co Ltd Raw material supply device of injection molding machine
JPH0349733B2 (en) * 1985-12-05 1991-07-30 Toshiba Machine Co Ltd

Also Published As

Publication number Publication date
JPS6260251B2 (en) 1987-12-15

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