JPS59230731A - 中心部を開口した薄肉円盤の射出成形装置 - Google Patents

中心部を開口した薄肉円盤の射出成形装置

Info

Publication number
JPS59230731A
JPS59230731A JP10737283A JP10737283A JPS59230731A JP S59230731 A JPS59230731 A JP S59230731A JP 10737283 A JP10737283 A JP 10737283A JP 10737283 A JP10737283 A JP 10737283A JP S59230731 A JPS59230731 A JP S59230731A
Authority
JP
Japan
Prior art keywords
center
fixed
movable
disc
punch
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
JP10737283A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6245809B2 (enrdf_load_stackoverflow
Inventor
Hideo Horiguchi
英夫 堀口
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.)
Meiki Seisakusho KK
Original Assignee
Meiki Seisakusho KK
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 Meiki Seisakusho KK filed Critical Meiki Seisakusho KK
Priority to JP10737283A priority Critical patent/JPS59230731A/ja
Publication of JPS59230731A publication Critical patent/JPS59230731A/ja
Publication of JPS6245809B2 publication Critical patent/JPS6245809B2/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

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)
JP10737283A 1983-06-14 1983-06-14 中心部を開口した薄肉円盤の射出成形装置 Granted JPS59230731A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10737283A JPS59230731A (ja) 1983-06-14 1983-06-14 中心部を開口した薄肉円盤の射出成形装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10737283A JPS59230731A (ja) 1983-06-14 1983-06-14 中心部を開口した薄肉円盤の射出成形装置

Publications (2)

Publication Number Publication Date
JPS59230731A true JPS59230731A (ja) 1984-12-25
JPS6245809B2 JPS6245809B2 (enrdf_load_stackoverflow) 1987-09-29

Family

ID=14457426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10737283A Granted JPS59230731A (ja) 1983-06-14 1983-06-14 中心部を開口した薄肉円盤の射出成形装置

Country Status (1)

Country Link
JP (1) JPS59230731A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4772196A (en) * 1986-02-26 1988-09-20 Kabushiki Kaisha Meiki Seisakusho Molding apparatus for producing centrally-apertured discs
US4790738A (en) * 1986-11-20 1988-12-13 Meiki Co., Ltd. Injection mold having rotatable stamper holding ring
US5238393A (en) * 1990-12-28 1993-08-24 Sony Corporation Multi-cavity injection molding apparatus for optical disk substrates

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613395A (en) * 1949-02-24 1952-10-14 M & W Company Inc Apparatus and method for producing disk phonograph records
JPS511312U (enrdf_load_stackoverflow) * 1974-06-17 1976-01-07
US3989436A (en) * 1975-12-18 1976-11-02 Rca Corporation Apparatus for producing injection molded and centrally apertured disc records
JPS54156062A (en) * 1978-05-31 1979-12-08 Nissei Plastics Ind Co Injection punching molding method
JPS55146714A (en) * 1979-04-18 1980-11-15 Discovision Ass Molding device and itsmethod
JPS6242773A (ja) * 1985-08-16 1987-02-24 株式会社日立製作所 超音波照射装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613395A (en) * 1949-02-24 1952-10-14 M & W Company Inc Apparatus and method for producing disk phonograph records
JPS511312U (enrdf_load_stackoverflow) * 1974-06-17 1976-01-07
US3989436A (en) * 1975-12-18 1976-11-02 Rca Corporation Apparatus for producing injection molded and centrally apertured disc records
JPS54156062A (en) * 1978-05-31 1979-12-08 Nissei Plastics Ind Co Injection punching molding method
JPS55146714A (en) * 1979-04-18 1980-11-15 Discovision Ass Molding device and itsmethod
JPS6242773A (ja) * 1985-08-16 1987-02-24 株式会社日立製作所 超音波照射装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4772196A (en) * 1986-02-26 1988-09-20 Kabushiki Kaisha Meiki Seisakusho Molding apparatus for producing centrally-apertured discs
US4790738A (en) * 1986-11-20 1988-12-13 Meiki Co., Ltd. Injection mold having rotatable stamper holding ring
US5238393A (en) * 1990-12-28 1993-08-24 Sony Corporation Multi-cavity injection molding apparatus for optical disk substrates

Also Published As

Publication number Publication date
JPS6245809B2 (enrdf_load_stackoverflow) 1987-09-29

Similar Documents

Publication Publication Date Title
EP0051253B1 (en) Hot sprue valve assembly for an injection molding machine
KR900007331B1 (ko) 중심-개구(開口)디스크(Disc)를 제조하기 위한 성형장치 및 방법
US4466934A (en) Hot sprue valve assembly for an injection molding machine
US5593710A (en) Mold capable of changing a set position of a stamper plate
JPS59230731A (ja) 中心部を開口した薄肉円盤の射出成形装置
EP1080862B1 (en) Cutting apparatus for ingates and method for disc molding
JPS6159209B2 (enrdf_load_stackoverflow)
JP4136023B2 (ja) 光ディスク成形装置
JPS6345293B2 (enrdf_load_stackoverflow)
JPH03356Y2 (enrdf_load_stackoverflow)
JPH0655586A (ja) 射出成形金型
JPS62198422A (ja) デイスクの射出成形装置
JPH06847A (ja) 射出成形用金型装置
JPH01280519A (ja) ディスク成形用金型
JPH0460414B2 (enrdf_load_stackoverflow)
JP3414995B2 (ja) ディスク成形用金型
JP2915775B2 (ja) 射出成形機
JP2003211513A (ja) 射出成形機
JP2553623B2 (ja) ディスクの離型方法
JP2003154558A (ja) ディスク成形用金型
JPH0338099B2 (enrdf_load_stackoverflow)
JPS63114609A (ja) デイスクの射出成形装置とデイスクの射出成形方法
JP2002018918A (ja) ディスク成形用型締装置およびそれを用いたディスク成形品の射出圧縮成形方法
JPH05261767A (ja) 光ディスク成形用金型装置
JPH06357B2 (ja) ディスク用成形型