JPS5743846A - Gas injecting molding method and apparatus in molding machine - Google Patents

Gas injecting molding method and apparatus in molding machine

Info

Publication number
JPS5743846A
JPS5743846A JP11829080A JP11829080A JPS5743846A JP S5743846 A JPS5743846 A JP S5743846A JP 11829080 A JP11829080 A JP 11829080A JP 11829080 A JP11829080 A JP 11829080A JP S5743846 A JPS5743846 A JP S5743846A
Authority
JP
Japan
Prior art keywords
gas
cavity
inserting hole
die
high 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
JP11829080A
Other languages
Japanese (ja)
Other versions
JPS6012211B2 (en
Inventor
Shigeru Sakae
Makoto Suzuki
Heizo Suzuki
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.)
Seiki Kogyo Co Ltd
Original Assignee
Seiki Kogyo 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 Seiki Kogyo Co Ltd filed Critical Seiki Kogyo Co Ltd
Priority to JP11829080A priority Critical patent/JPS6012211B2/en
Publication of JPS5743846A publication Critical patent/JPS5743846A/en
Publication of JPS6012211B2 publication Critical patent/JPS6012211B2/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
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1734—Nozzles 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
    • B29C45/1701—Component parts, details or accessories; Auxiliary operations using a particular environment during moulding, e.g. moisture-free or dust-free

Landscapes

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

Abstract

PURPOSE:To keep an inner surface of a cavity fine at all times by discharging a gas with high pressure from a clearance formed between a projecting pin and an inserting hole and preventing the intrusion of an evaporating section of an additive when injecting melted resin into the cavity. CONSTITUTION:A fixed die 4 and a movable die 5 are clamped to form the cavity 6, a gas unit control 16 is actuated, and the gas with high pressure is introduced into the inserting hole 9 of the die 5 through a gas hose 15, a gas introducing groove 14 and a manifold gas groove 13, discharged into the cavity 6 through the clearance 10 between the inserting hole 9 and the projecting pin 7 and filled. The melted resin is injected into the cavity 6 through an injection nozzle 17, a runner section 19 and a gate 18, a shape is molded, a movable member 2 is retreated while a substrate 8 is butted to a push lever 22, the pin 7 is moved forward in the inserting hole 9 and the shape is exfoliated from the die 5.
JP11829080A 1980-08-29 1980-08-29 Gas injection molding method and device for molding machine Expired JPS6012211B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11829080A JPS6012211B2 (en) 1980-08-29 1980-08-29 Gas injection molding method and device for molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11829080A JPS6012211B2 (en) 1980-08-29 1980-08-29 Gas injection molding method and device for molding machine

Publications (2)

Publication Number Publication Date
JPS5743846A true JPS5743846A (en) 1982-03-12
JPS6012211B2 JPS6012211B2 (en) 1985-03-30

Family

ID=14733006

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11829080A Expired JPS6012211B2 (en) 1980-08-29 1980-08-29 Gas injection molding method and device for molding machine

Country Status (1)

Country Link
JP (1) JPS6012211B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652538A1 (en) * 1989-10-04 1991-04-05 Peugeot PRESSURE GAS INJECTOR IN A MOLD FOR MANUFACTURING A PLASTIC MATERIAL, MOLD AND MOLDING METHOD USING SUCH AN INJECTOR AND A PLASTIC MATERIAL OBTAINED.
US6559949B1 (en) 1999-01-22 2003-05-06 Canon Kabushiki Kaisha Gyro apparatus and gyroscope with multiple interfering laser beams affecting an electrical signal flowing therethrough

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63164113U (en) * 1987-03-20 1988-10-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652538A1 (en) * 1989-10-04 1991-04-05 Peugeot PRESSURE GAS INJECTOR IN A MOLD FOR MANUFACTURING A PLASTIC MATERIAL, MOLD AND MOLDING METHOD USING SUCH AN INJECTOR AND A PLASTIC MATERIAL OBTAINED.
US6559949B1 (en) 1999-01-22 2003-05-06 Canon Kabushiki Kaisha Gyro apparatus and gyroscope with multiple interfering laser beams affecting an electrical signal flowing therethrough

Also Published As

Publication number Publication date
JPS6012211B2 (en) 1985-03-30

Similar Documents

Publication Publication Date Title
EP0283207B1 (en) Injection moulding apparatus
ATE193860T1 (en) INJECTION MOLDING PROCESS WITH OPPOSING CUTS
IL74471A0 (en) Process of making injection moldings and injection mold for carrying out the process
JP3174962B2 (en) Gas utilization method for improving surface properties in plastic molding
ES2019167A6 (en) Process and apparatus for injection molding.
EP0818293A4 (en) Apparatus for molding patterned product and method of molding patterned product
EP0365684A4 (en) Molding method and molding apparatus by use of injection-compression molding machine
JPS6431611A (en) Injection molding equipment
US5252287A (en) Method of injection molding hollow articles
JPS5743846A (en) Gas injecting molding method and apparatus in molding machine
JPS5787340A (en) Injection unit for injection molding machine
CA2033338A1 (en) Injection-molding dimension-control and clamp-reduction
JPS56148533A (en) Gate cut-off device for die for injection molding
JPS54111557A (en) Hollow molded article having integrated internal ribs, and method for forming the same
JPS5591641A (en) Molding for making synthetic resin layer on long core surface
JPS5967029A (en) Multilayer injection molding device
JP3047299B2 (en) Molding method of hollow injection molding
JPS56121748A (en) Injection molding method
CA2208200A1 (en) Injection molding apparatus and method
JPS5736634A (en) Method and apparatus for preventing remaining material from leaking in injection molding
JPS6416623A (en) Mold for plastic lens
JPS56159135A (en) Injection molder for high injection pressure
JPS6424715A (en) Injection molding process
JPS6424712A (en) Reactive injection molding device
JPS5670927A (en) Molding apparatus