JPS59176029A - 円盤状記録媒体の離型方法 - Google Patents

円盤状記録媒体の離型方法

Info

Publication number
JPS59176029A
JPS59176029A JP5179783A JP5179783A JPS59176029A JP S59176029 A JPS59176029 A JP S59176029A JP 5179783 A JP5179783 A JP 5179783A JP 5179783 A JP5179783 A JP 5179783A JP S59176029 A JPS59176029 A JP S59176029A
Authority
JP
Japan
Prior art keywords
video disc
synthetic resin
mold
air
molded article
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
JP5179783A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0468127B2 (OSRAM
Inventor
Takashi Segawa
瀬川　隆
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP5179783A priority Critical patent/JPS59176029A/ja
Publication of JPS59176029A publication Critical patent/JPS59176029A/ja
Publication of JPH0468127B2 publication Critical patent/JPH0468127B2/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
    • B29C45/26—Moulds
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/43—Removing or ejecting moulded articles using fluid under pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
JP5179783A 1983-03-28 1983-03-28 円盤状記録媒体の離型方法 Granted JPS59176029A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5179783A JPS59176029A (ja) 1983-03-28 1983-03-28 円盤状記録媒体の離型方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5179783A JPS59176029A (ja) 1983-03-28 1983-03-28 円盤状記録媒体の離型方法

Publications (2)

Publication Number Publication Date
JPS59176029A true JPS59176029A (ja) 1984-10-05
JPH0468127B2 JPH0468127B2 (OSRAM) 1992-10-30

Family

ID=12896919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5179783A Granted JPS59176029A (ja) 1983-03-28 1983-03-28 円盤状記録媒体の離型方法

Country Status (1)

Country Link
JP (1) JPS59176029A (OSRAM)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62198422A (ja) * 1986-02-26 1987-09-02 Meiki Co Ltd デイスクの射出成形装置
JPS62234910A (ja) * 1986-04-07 1987-10-15 Meiki Co Ltd デイスクの射出成形装置
JPH01159223A (ja) * 1987-12-17 1989-06-22 Tdk Corp 光ディスク等用成型装置
JPH01160626A (ja) * 1987-12-18 1989-06-23 Tdk Corp 光ディスク等用成型装置
JPH01200924A (ja) * 1987-12-24 1989-08-14 Tdk Corp 光ディスク等用成型装置
JPH01264820A (ja) * 1988-04-16 1989-10-23 Daicel Chem Ind Ltd フォーマット入り光ディスク基板成形用金型
JPH01264822A (ja) * 1988-04-16 1989-10-23 Daicel Chem Ind Ltd プリフォーマット入り光ディスク基板の成形方法およびそれに用いる金型
JPH01264816A (ja) * 1988-04-16 1989-10-23 Daicel Chem Ind Ltd フォーマット入り光ディスク基板の成形方法
JPH0267116A (ja) * 1988-09-01 1990-03-07 Meiki Co Ltd ディスク成形方法及びそのための成形型
US4979891A (en) * 1988-08-16 1990-12-25 Sumitomo Heavy Industries, Ltd. Mold for molding optical disk base
US4994228A (en) * 1989-02-16 1991-02-19 Fuji Photo Film Co., Ltd. Method for releasing molded synthetic resin products from a mold
NL1026860C2 (nl) * 2004-08-18 2006-02-21 F T Engineering B V Werkwijze en inrichting voor het uit een matrijs verwijderen van een schijfvormige informatiedrager.
FR2930474A1 (fr) * 2008-04-24 2009-10-30 Rz Engineering Soc Par Actions Dispositif de fabrication de pieces en matiere plastique et procede de demoulage desdites pieces, utilisant un jet d'air

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121053A (en) * 1977-03-31 1978-10-23 Sekisui Chem Co Ltd Injection molding and its molds
JPS5450062U (OSRAM) * 1977-09-14 1979-04-06
JPS552681U (OSRAM) * 1978-06-22 1980-01-09

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121053A (en) * 1977-03-31 1978-10-23 Sekisui Chem Co Ltd Injection molding and its molds
JPS5450062U (OSRAM) * 1977-09-14 1979-04-06
JPS552681U (OSRAM) * 1978-06-22 1980-01-09

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62198422A (ja) * 1986-02-26 1987-09-02 Meiki Co Ltd デイスクの射出成形装置
JPS62234910A (ja) * 1986-04-07 1987-10-15 Meiki Co Ltd デイスクの射出成形装置
JPH01159223A (ja) * 1987-12-17 1989-06-22 Tdk Corp 光ディスク等用成型装置
JPH01160626A (ja) * 1987-12-18 1989-06-23 Tdk Corp 光ディスク等用成型装置
JPH01200924A (ja) * 1987-12-24 1989-08-14 Tdk Corp 光ディスク等用成型装置
JPH01264822A (ja) * 1988-04-16 1989-10-23 Daicel Chem Ind Ltd プリフォーマット入り光ディスク基板の成形方法およびそれに用いる金型
JPH01264820A (ja) * 1988-04-16 1989-10-23 Daicel Chem Ind Ltd フォーマット入り光ディスク基板成形用金型
JPH01264816A (ja) * 1988-04-16 1989-10-23 Daicel Chem Ind Ltd フォーマット入り光ディスク基板の成形方法
US4979891A (en) * 1988-08-16 1990-12-25 Sumitomo Heavy Industries, Ltd. Mold for molding optical disk base
JPH0267116A (ja) * 1988-09-01 1990-03-07 Meiki Co Ltd ディスク成形方法及びそのための成形型
US4994228A (en) * 1989-02-16 1991-02-19 Fuji Photo Film Co., Ltd. Method for releasing molded synthetic resin products from a mold
NL1026860C2 (nl) * 2004-08-18 2006-02-21 F T Engineering B V Werkwijze en inrichting voor het uit een matrijs verwijderen van een schijfvormige informatiedrager.
WO2006019294A1 (en) * 2004-08-18 2006-02-23 F.T.Engineering B.V. Method and device for removing a disc-shaped information carrier from a mould
FR2930474A1 (fr) * 2008-04-24 2009-10-30 Rz Engineering Soc Par Actions Dispositif de fabrication de pieces en matiere plastique et procede de demoulage desdites pieces, utilisant un jet d'air

Also Published As

Publication number Publication date
JPH0468127B2 (OSRAM) 1992-10-30

Similar Documents

Publication Publication Date Title
JPS59176029A (ja) 円盤状記録媒体の離型方法
JPS6227124A (ja) 射出成形体を製造するための方法と装置
AU589581B2 (en) In an injection moulding tool, a method of and an apparatus for stamping out and removing the runner
JP2963322B2 (ja) ディスク成形品の成形方法
EP0338906B1 (en) Method for molding a formatted substrate for an optical disk and a mold assembly used in the method
JP3294971B2 (ja) ディスク基板およびその成形用型
JPS6034448B2 (ja) 眼鏡の縁面を成形するための金型の製造方法
JP3387727B2 (ja) ディスク成形型およびディスク成形方法
JPH0751300B2 (ja) プリフォーマット入り光ディスク基板の成形方法およびそれに用いる金型
TWI905694B (zh) 潛伏式澆口結構及其脫模方法
JP2011201103A (ja) レンズ成形方法
JPH07329121A (ja) 光ディスク用金型及び光ディスク基板成形方法
JPH01176536A (ja) ディスク成形用金型
JPH08221813A (ja) 樹脂製ディスク基板の製造方法
JPH11207789A (ja) 記録及び／又は再生ディスク用シェルの射出成形方法およびその装置ならびにその製品
JPS60264217A (ja) 射出成形用金型装置
JP3383387B2 (ja) 光ディスク用基板及びこの光ディスク用基板の成形用金型
JP3167257B2 (ja) ディスク基板の成形用型および成形方法
JPH0890617A (ja) ディスク成形法
JP2544316Y2 (ja) 射出成形用金型
JP2592093B2 (ja) 光ディスクの製造方法
JPH0717460Y2 (ja) ディスク成形型
JPH11333859A (ja) 光ディスク用スタンパーのクリーニング方法
JPH10166400A (ja) ディスク成形用型
JPH03108522A (ja) ディスク成形品の離型方法