JPS54123173A - Method of monitoring molding process for hollow or foamed shapes - Google Patents

Method of monitoring molding process for hollow or foamed shapes

Info

Publication number
JPS54123173A
JPS54123173A JP3052578A JP3052578A JPS54123173A JP S54123173 A JPS54123173 A JP S54123173A JP 3052578 A JP3052578 A JP 3052578A JP 3052578 A JP3052578 A JP 3052578A JP S54123173 A JPS54123173 A JP S54123173A
Authority
JP
Japan
Prior art keywords
gas
hollow
synthetic resin
accumulator acc
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
JP3052578A
Other languages
Japanese (ja)
Other versions
JPS6159899B2 (en
Inventor
Kaoru Toyouchi
Hiroshi Kataoka
Hiroshi Iijima
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.)
Asahi Dow Ltd
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Dow Ltd
Asahi Chemical Industry 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 Asahi Dow Ltd, Asahi Chemical Industry Co Ltd filed Critical Asahi Dow Ltd
Priority to JP3052578A priority Critical patent/JPS54123173A/en
Publication of JPS54123173A publication Critical patent/JPS54123173A/en
Publication of JPS6159899B2 publication Critical patent/JPS6159899B2/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
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1732—Control circuits 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum

Landscapes

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

Abstract

PURPOSE:In the production of hollow shapes, the pressure locus of the gas that is pressurized into the synthetic resin is monitored and compared with the standard of pressure locus, thus producing readily, rapidly, and safely hollow or foamed shapes. CONSTITUTION:On molding, a gas as nitrogen is supplied from bomb ACC-3, through regulator RV-1, check valve CV-1 to piston type accumulator ACC-1. Then, after the gas in accumulator ACC-1 is compressed by opening magnet valve V-5 leading to hydraulic compressor, the magnet valve V-5 is closed. A synthetic resin is injected from injection cylinder 1 into the cavity of mold 3 and simultaneously when the injection is completed, magnet valve V-1 is opened and the gas is pressurized from accumulator ACC-1 through nozzle 2 and inlet 4 into synthetic resin 5 until the gas is completely filled. At this time, the relationship between the reduction in pressure of the gas in accumulator ACC-1 and time is monitored and simultaneously compared with the standard of pressure locus.
JP3052578A 1978-03-18 1978-03-18 Method of monitoring molding process for hollow or foamed shapes Granted JPS54123173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3052578A JPS54123173A (en) 1978-03-18 1978-03-18 Method of monitoring molding process for hollow or foamed shapes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3052578A JPS54123173A (en) 1978-03-18 1978-03-18 Method of monitoring molding process for hollow or foamed shapes

Publications (2)

Publication Number Publication Date
JPS54123173A true JPS54123173A (en) 1979-09-25
JPS6159899B2 JPS6159899B2 (en) 1986-12-18

Family

ID=12306216

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3052578A Granted JPS54123173A (en) 1978-03-18 1978-03-18 Method of monitoring molding process for hollow or foamed shapes

Country Status (1)

Country Link
JP (1) JPS54123173A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578128A (en) * 1980-05-27 1982-01-16 Battenfeld Maschfab Measuring compounding circuit device of every kind of gassy or liquefied substance, particularly, physical foaming agent to fluid melted material consisting of thermoplastic synthetic substance
EP0127961A2 (en) * 1983-05-11 1984-12-12 Cinpres Limited Process and apparatus for injection moulding
JPS615623U (en) * 1984-06-18 1986-01-14 株式会社日本製鋼所 Mold cavity pressure control device
JPS61182912A (en) * 1985-02-08 1986-08-15 Nissei Plastics Ind Co Control method of casting pressure of gaseous foaming agent in foam molding
JPS62132620A (en) * 1985-12-04 1987-06-15 Daiwa Giken Kogyo Kk Molded member made of plastic and its manufacture
EP0250080A2 (en) * 1986-05-19 1987-12-23 Ladney, Michael Method for injection molding
JPS6378714A (en) * 1986-05-19 1988-04-08 旭化成株式会社 Method and device for manufacturing injection molding of plastic material
JPS63172625A (en) * 1987-12-11 1988-07-16 Seikosha Co Ltd Manufacture of case for clock mechanical body
JPS6463122A (en) * 1987-09-04 1989-03-09 Mitsubishi Gas Chemical Co Injection molding
JPH01128814A (en) * 1987-10-09 1989-05-22 Battenfeld Gmbh Injection molding method and device for thermoplastic synthetic-resin molded form
EP0317176A2 (en) * 1987-11-17 1989-05-24 Ladney, Michael Method for injection molding, apparatus therefor and moldings produced thereby
US4923667A (en) * 1987-09-25 1990-05-08 Cinpres Limited Method and apparatus for injection moulding
US4923666A (en) * 1987-04-28 1990-05-08 Cinpres Limited Method of injection moulding
EP0382690A2 (en) * 1989-02-09 1990-08-16 Aktiebolaget Electrolux Device for producing hollow shaped articles
JPH02223420A (en) * 1988-12-15 1990-09-05 Head Sportgeraete Gmbh & Co Ohg Manufacture of racket frame for ball game
JPH02295714A (en) * 1989-04-21 1990-12-06 Kloeckner Ferromatik Desma Gmbh Extrusion molding of synthetic resin filled with fluid and its apparatus
US5246646A (en) * 1988-11-02 1993-09-21 Dean Lamer Injection molding method
EP0810074A1 (en) * 1996-05-30 1997-12-03 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Device for controlling the operation of means for controlling the profile of a pressure curve of a fluid injected in a fluid-assisted injection mould

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3991547C2 (en) * 1988-12-26 1994-11-03 Asahi Chemical Ind Process and apparatus for injection-moulding a hollow, shaped article

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0117449B2 (en) * 1980-05-27 1989-03-30 Batsutenfueruto Gmbh
US4381272A (en) * 1980-05-27 1983-04-26 Battenfeld Maschinenfabrik Gmbh Method of and system for injecting a fluid into a plastified mass in an extruder
JPS578128A (en) * 1980-05-27 1982-01-16 Battenfeld Maschfab Measuring compounding circuit device of every kind of gassy or liquefied substance, particularly, physical foaming agent to fluid melted material consisting of thermoplastic synthetic substance
EP0127961A2 (en) * 1983-05-11 1984-12-12 Cinpres Limited Process and apparatus for injection moulding
JPS6024913A (en) * 1983-05-11 1985-02-07 ピールレス　シンプレス　リミティド Injection molding method and device
JPH0347171B2 (en) * 1983-05-11 1991-07-18 Piirusu Shinpuresu Ltd
JPS615623U (en) * 1984-06-18 1986-01-14 株式会社日本製鋼所 Mold cavity pressure control device
JPH0235471Y2 (en) * 1984-06-18 1990-09-26
JPS61182912A (en) * 1985-02-08 1986-08-15 Nissei Plastics Ind Co Control method of casting pressure of gaseous foaming agent in foam molding
JPH0341049B2 (en) * 1985-02-08 1991-06-20
JPS62132620A (en) * 1985-12-04 1987-06-15 Daiwa Giken Kogyo Kk Molded member made of plastic and its manufacture
JPS6378714A (en) * 1986-05-19 1988-04-08 旭化成株式会社 Method and device for manufacturing injection molding of plastic material
JPH0431853B2 (en) * 1986-05-19 1992-05-27
EP0250080A2 (en) * 1986-05-19 1987-12-23 Ladney, Michael Method for injection molding
US4923666A (en) * 1987-04-28 1990-05-08 Cinpres Limited Method of injection moulding
JPS6463122A (en) * 1987-09-04 1989-03-09 Mitsubishi Gas Chemical Co Injection molding
US4923667A (en) * 1987-09-25 1990-05-08 Cinpres Limited Method and apparatus for injection moulding
US5047183A (en) * 1987-10-09 1991-09-10 Battenfeld Gmbh Method of injection molding articles of thermoplastic materials
JPH01128814A (en) * 1987-10-09 1989-05-22 Battenfeld Gmbh Injection molding method and device for thermoplastic synthetic-resin molded form
EP0317176A2 (en) * 1987-11-17 1989-05-24 Ladney, Michael Method for injection molding, apparatus therefor and moldings produced thereby
JPS63172625A (en) * 1987-12-11 1988-07-16 Seikosha Co Ltd Manufacture of case for clock mechanical body
US5246646A (en) * 1988-11-02 1993-09-21 Dean Lamer Injection molding method
JPH02223420A (en) * 1988-12-15 1990-09-05 Head Sportgeraete Gmbh & Co Ohg Manufacture of racket frame for ball game
EP0382690A2 (en) * 1989-02-09 1990-08-16 Aktiebolaget Electrolux Device for producing hollow shaped articles
JPH02295714A (en) * 1989-04-21 1990-12-06 Kloeckner Ferromatik Desma Gmbh Extrusion molding of synthetic resin filled with fluid and its apparatus
EP0810074A1 (en) * 1996-05-30 1997-12-03 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Device for controlling the operation of means for controlling the profile of a pressure curve of a fluid injected in a fluid-assisted injection mould
FR2749211A1 (en) * 1996-05-30 1997-12-05 Air Liquide DEVICE FOR CONTROLLING MEANS FOR CONTROLLING THE PROFILE OF A CURVE OF A FLUID INJECTED INTO A FLUID-ASSISTED INJECTION MOLD

Also Published As

Publication number Publication date
JPS6159899B2 (en) 1986-12-18

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