JPS5699644A - Controlling method for injection molding machine - Google Patents

Controlling method for injection molding machine

Info

Publication number
JPS5699644A
JPS5699644A JP17378379A JP17378379A JPS5699644A JP S5699644 A JPS5699644 A JP S5699644A JP 17378379 A JP17378379 A JP 17378379A JP 17378379 A JP17378379 A JP 17378379A JP S5699644 A JPS5699644 A JP S5699644A
Authority
JP
Japan
Prior art keywords
speed
screw
injection molding
speed signal
maintain
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
JP17378379A
Other languages
Japanese (ja)
Other versions
JPS6221614B2 (en
Inventor
Yoji Eto
Makio Tsubota
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.)
Pentel Co Ltd
Original Assignee
Pentel 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 Pentel Co Ltd filed Critical Pentel Co Ltd
Priority to JP17378379A priority Critical patent/JPS5699644A/en
Publication of JPS5699644A publication Critical patent/JPS5699644A/en
Publication of JPS6221614B2 publication Critical patent/JPS6221614B2/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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • 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
    • 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
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C2045/5695—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding using a movable mould part for continuously increasing the volume of the mould cavity to its final dimension during the whole injection step

Landscapes

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

Abstract

PURPOSE:To maintain a constant cavity pressure and obtain solid painting material which has no stripe-pattern and is difficult to break by withdrawing the core pins in the mold cavity in accordance with the movement of the screw in an injection cylinder in order to maintain a constant cavity pressure. CONSTITUTION:A screw 4 turns and moves forwards, and a rack 11 causes a pinion 12 to rotate, consequently a potentiometer 10 operates to detect the screw position, which is converted into a speed signal in a speed detecting circuit 13. The speed signal is applied through an amplifier 14 to a current controller 8 to control the valve opening so that an oil-hydraulic cylinder 7 is operated at a speed according to the speed signal. Accordingly, a core plate 5 and core pins 6 unitary therewith are withdrawn at a speed according to the speed of the screw 4 to perform injection molding.
JP17378379A 1979-12-29 1979-12-29 Controlling method for injection molding machine Granted JPS5699644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17378379A JPS5699644A (en) 1979-12-29 1979-12-29 Controlling method for injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17378379A JPS5699644A (en) 1979-12-29 1979-12-29 Controlling method for injection molding machine

Publications (2)

Publication Number Publication Date
JPS5699644A true JPS5699644A (en) 1981-08-11
JPS6221614B2 JPS6221614B2 (en) 1987-05-13

Family

ID=15967062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17378379A Granted JPS5699644A (en) 1979-12-29 1979-12-29 Controlling method for injection molding machine

Country Status (1)

Country Link
JP (1) JPS5699644A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4592714A (en) * 1983-08-03 1986-06-03 Klockner-Werke Aktiengesellschaft Mold closing unit of an injection molding machine
US4592713A (en) * 1983-08-03 1986-06-03 Klockner-Werke Aktiengesellschaft Mold closing unit of an injection molding machine
US4599063A (en) * 1982-02-04 1986-07-08 Klockner-Werke Aktiengesellschaft Injection molding apparatus having die closing and locking means
US4605367A (en) * 1983-08-03 1986-08-12 Klockner-Werke Aktiengesellschaft Mold closing unit of an injection molding machine
JPS6290215A (en) * 1985-10-16 1987-04-24 Sumitomo Heavy Ind Ltd Injection molding machine
CN109278260A (en) * 2017-07-20 2019-01-29 恩格尔奥地利有限公司 Method for being manufactured part

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4599063A (en) * 1982-02-04 1986-07-08 Klockner-Werke Aktiengesellschaft Injection molding apparatus having die closing and locking means
US4592714A (en) * 1983-08-03 1986-06-03 Klockner-Werke Aktiengesellschaft Mold closing unit of an injection molding machine
US4592713A (en) * 1983-08-03 1986-06-03 Klockner-Werke Aktiengesellschaft Mold closing unit of an injection molding machine
US4605367A (en) * 1983-08-03 1986-08-12 Klockner-Werke Aktiengesellschaft Mold closing unit of an injection molding machine
JPS6290215A (en) * 1985-10-16 1987-04-24 Sumitomo Heavy Ind Ltd Injection molding machine
JPH0158056B2 (en) * 1985-10-16 1989-12-08 Sumitomo Heavy Industries
CN109278260A (en) * 2017-07-20 2019-01-29 恩格尔奥地利有限公司 Method for being manufactured part
CN109278260B (en) * 2017-07-20 2021-08-10 恩格尔奥地利有限公司 Method for producing a molded part, molding tool and molding machine
US11312052B2 (en) 2017-07-20 2022-04-26 Engel Austria Gmbh Process for producing a molded part

Also Published As

Publication number Publication date
JPS6221614B2 (en) 1987-05-13

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