JPH0369697B2 - - Google Patents

Info

Publication number
JPH0369697B2
JPH0369697B2 JP7637487A JP7637487A JPH0369697B2 JP H0369697 B2 JPH0369697 B2 JP H0369697B2 JP 7637487 A JP7637487 A JP 7637487A JP 7637487 A JP7637487 A JP 7637487A JP H0369697 B2 JPH0369697 B2 JP H0369697B2
Authority
JP
Japan
Prior art keywords
protrusion
core
mold
special
central core
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
JP7637487A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63242617A (ja
Inventor
Hiroshi 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.)
Nidec Precision Corp
Original Assignee
Nidec Copal 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 Nidec Copal Corp filed Critical Nidec Copal Corp
Priority to JP7637487A priority Critical patent/JPS63242617A/ja
Publication of JPS63242617A publication Critical patent/JPS63242617A/ja
Publication of JPH0369697B2 publication Critical patent/JPH0369697B2/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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4421—Removing or ejecting moulded articles for undercut articles using expansible or collapsible cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
JP7637487A 1987-03-31 1987-03-31 開きコアを有する射出成形金型 Granted JPS63242617A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7637487A JPS63242617A (ja) 1987-03-31 1987-03-31 開きコアを有する射出成形金型

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7637487A JPS63242617A (ja) 1987-03-31 1987-03-31 開きコアを有する射出成形金型

Publications (2)

Publication Number Publication Date
JPS63242617A JPS63242617A (ja) 1988-10-07
JPH0369697B2 true JPH0369697B2 (de) 1991-11-05

Family

ID=13603570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7637487A Granted JPS63242617A (ja) 1987-03-31 1987-03-31 開きコアを有する射出成形金型

Country Status (1)

Country Link
JP (1) JPS63242617A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07106583B2 (ja) * 1991-09-03 1995-11-15 株式会社コパル アンダーカット部を有する射出成形金型
JP5201092B2 (ja) * 2009-06-26 2013-06-05 豊田合成株式会社 成形用金型及び成形方法
MY147839A (en) * 2009-08-13 2013-01-31 Yap Wang Han An internal undercut core for forming an internal undercut in an article in injection moulding
DE102010004227B4 (de) * 2010-01-09 2011-09-01 Poschmann Holding Gmbh & Co. Kg Verfahren und Vorrichtung zum Entformen von Spritzgusshohlkörpern mit Hinterschneidungen in der Innenkontur
CN113976854B (zh) * 2021-12-28 2022-04-12 爱柯迪股份有限公司 具有中孔的铝压铸件的压铸模和使用方法
CN119526711B (zh) * 2025-01-22 2025-07-04 森骏卓越精密智造(深圳)有限公司 一种具有较深内倒扣的瓶盖的脱模机构

Also Published As

Publication number Publication date
JPS63242617A (ja) 1988-10-07

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees