JPS5761540A - Injection molding machine - Google Patents

Injection molding machine

Info

Publication number
JPS5761540A
JPS5761540A JP13729780A JP13729780A JPS5761540A JP S5761540 A JPS5761540 A JP S5761540A JP 13729780 A JP13729780 A JP 13729780A JP 13729780 A JP13729780 A JP 13729780A JP S5761540 A JPS5761540 A JP S5761540A
Authority
JP
Japan
Prior art keywords
die
resin
cavity
injected
injection molding
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.)
Pending
Application number
JP13729780A
Other languages
Japanese (ja)
Inventor
Tadashi Sato
Masaru Yokoyama
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP13729780A priority Critical patent/JPS5761540A/en
Publication of JPS5761540A publication Critical patent/JPS5761540A/en
Pending 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
    • B29C45/561—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
    • B29C45/46—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
    • B29C45/561—Injection-compression moulding
    • B29C2045/5625—Closing of the feed opening before or during compression

Landscapes

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

Abstract

PURPOSE:To make possible injection molding at low pressures and to simplify injection molding for the resin containing fibrous filler by a method wherein the molding material injected into a cavity is compressed by a pressure die attached to a guide die. CONSTITUTION:As a pressure die 4 is retreated, molten resin is injected from a nozzle 7 into a cavity 2, then a die 1 is moved to choke a resin injecting hole 5 with the front of a barrel 6, furthermore the pressure die 4 fixed to a guide die 8 arranged at the rear of the die 1 is advanced to compress the resin in the cavity 2. As the pressure die is retreated or as a cavity volume is increased, the resin can be injected and the injection pressur may be small. Accordingly, the resin containing fibrous filler and having a large passage resistance can be injected easily at a low pressure, too.
JP13729780A 1980-09-30 1980-09-30 Injection molding machine Pending JPS5761540A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13729780A JPS5761540A (en) 1980-09-30 1980-09-30 Injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13729780A JPS5761540A (en) 1980-09-30 1980-09-30 Injection molding machine

Publications (1)

Publication Number Publication Date
JPS5761540A true JPS5761540A (en) 1982-04-14

Family

ID=15195384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13729780A Pending JPS5761540A (en) 1980-09-30 1980-09-30 Injection molding machine

Country Status (1)

Country Link
JP (1) JPS5761540A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51151773A (en) * 1975-06-13 1976-12-27 Curetti Ennio Glauco Process for making plastic object * apparatus used for said process and object made thereby

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51151773A (en) * 1975-06-13 1976-12-27 Curetti Ennio Glauco Process for making plastic object * apparatus used for said process and object made thereby

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