JPS6242773B2 - - Google Patents

Info

Publication number
JPS6242773B2
JPS6242773B2 JP6549078A JP6549078A JPS6242773B2 JP S6242773 B2 JPS6242773 B2 JP S6242773B2 JP 6549078 A JP6549078 A JP 6549078A JP 6549078 A JP6549078 A JP 6549078A JP S6242773 B2 JPS6242773 B2 JP S6242773B2
Authority
JP
Japan
Prior art keywords
mold
punch
sprue bush
movable
punching
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
JP6549078A
Other languages
English (en)
Japanese (ja)
Other versions
JPS54156062A (en
Inventor
Hoshin Kubota
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.)
Nissei Plastic Industrial Co Ltd
Original Assignee
Nissei Plastic Industrial 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 Nissei Plastic Industrial Co Ltd filed Critical Nissei Plastic Industrial Co Ltd
Priority to JP6549078A priority Critical patent/JPS54156062A/ja
Publication of JPS54156062A publication Critical patent/JPS54156062A/ja
Publication of JPS6242773B2 publication Critical patent/JPS6242773B2/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
    • B29C45/26—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)
JP6549078A 1978-05-31 1978-05-31 Injection punching molding method Granted JPS54156062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6549078A JPS54156062A (en) 1978-05-31 1978-05-31 Injection punching molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6549078A JPS54156062A (en) 1978-05-31 1978-05-31 Injection punching molding method

Publications (2)

Publication Number Publication Date
JPS54156062A JPS54156062A (en) 1979-12-08
JPS6242773B2 true JPS6242773B2 (ko) 1987-09-10

Family

ID=13288579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6549078A Granted JPS54156062A (en) 1978-05-31 1978-05-31 Injection punching molding method

Country Status (1)

Country Link
JP (1) JPS54156062A (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59230731A (ja) * 1983-06-14 1984-12-25 Meiki Co Ltd 中心部を開口した薄肉円盤の射出成形装置
JPS60247532A (ja) * 1984-05-23 1985-12-07 Tekunopurasu:Kk 円盤状記録媒体の成形方法
DE3526632A1 (de) * 1985-07-25 1987-02-05 Krauss Maffei Ag Verfahren und vorrichtung zum herstellen eines spritzgiessteils
JPH0665484B2 (ja) * 1986-09-09 1994-08-24 住友重機械工業株式会社 打抜き孔付成形品用射出成形方法

Also Published As

Publication number Publication date
JPS54156062A (en) 1979-12-08

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