JPH0114010B2 - - Google Patents

Info

Publication number
JPH0114010B2
JPH0114010B2 JP58240866A JP24086683A JPH0114010B2 JP H0114010 B2 JPH0114010 B2 JP H0114010B2 JP 58240866 A JP58240866 A JP 58240866A JP 24086683 A JP24086683 A JP 24086683A JP H0114010 B2 JPH0114010 B2 JP H0114010B2
Authority
JP
Japan
Prior art keywords
mold
cavity
resin
core
core mold
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.)
Expired
Application number
JP58240866A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60132719A (ja
Inventor
Isao Kawaida
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP24086683A priority Critical patent/JPS60132719A/ja
Publication of JPS60132719A publication Critical patent/JPS60132719A/ja
Publication of JPH0114010B2 publication Critical patent/JPH0114010B2/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
    • B29C45/38—Cutting-off equipment for sprues or ingates
    • 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)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
JP24086683A 1983-12-22 1983-12-22 プラスチツクレンズの製造方法 Granted JPS60132719A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24086683A JPS60132719A (ja) 1983-12-22 1983-12-22 プラスチツクレンズの製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24086683A JPS60132719A (ja) 1983-12-22 1983-12-22 プラスチツクレンズの製造方法

Publications (2)

Publication Number Publication Date
JPS60132719A JPS60132719A (ja) 1985-07-15
JPH0114010B2 true JPH0114010B2 (enrdf_load_stackoverflow) 1989-03-09

Family

ID=17065865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24086683A Granted JPS60132719A (ja) 1983-12-22 1983-12-22 プラスチツクレンズの製造方法

Country Status (1)

Country Link
JP (1) JPS60132719A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5928682A (en) * 1995-12-21 1999-07-27 Johnson & Johnson Vision Products, Inc. Annular gated mold for the injection molding of contact lenses
EP1063036A1 (en) * 1999-06-22 2000-12-27 David, Graziano Method and equipment for removing and/or cutting off bobs when die-casting

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5196854A (ja) * 1975-02-20 1976-08-25 Purasuchitsukurenzuno seizoho
JPS5882725A (ja) * 1981-11-13 1983-05-18 Hitachi Ltd プラスチツクレンズの加熱圧縮成形方法
JPS5894436A (ja) * 1981-12-01 1983-06-04 Olympus Optical Co Ltd 射出圧縮成形法及びその装置
JPS5894440A (ja) * 1981-12-01 1983-06-04 Olympus Optical Co Ltd 合成樹脂等の射出成形法

Also Published As

Publication number Publication date
JPS60132719A (ja) 1985-07-15

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