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JPS5610438A - Forming mold - Google Patents

Forming mold

Info

Publication number
JPS5610438A
JPS5610438A JP8536879A JP8536879A JPS5610438A JP S5610438 A JPS5610438 A JP S5610438A JP 8536879 A JP8536879 A JP 8536879A JP 8536879 A JP8536879 A JP 8536879A JP S5610438 A JPS5610438 A JP S5610438A
Authority
JP
Japan
Prior art keywords
undercut portion
piston
mold
cavity
taken
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.)
Pending
Application number
JP8536879A
Other languages
Japanese (ja)
Inventor
Tomoo Yamashita
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine 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 Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP8536879A priority Critical patent/JPS5610438A/en
Publication of JPS5610438A publication Critical patent/JPS5610438A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain the metal mold from which an undercut portion can be taken off easily and automatically by a method wherein an inclined piston is provided in a cavity for molding the undercut portion at the front end of a core mold. CONSTITUTION:A molded product 7 having the undercut portion 10 is formed by the mold with the cavity for the undercut portion 10 at the front end of the core mold. Then, when the moled product 7 is taken off, a piston 8 is made to go forth by air pressure with the move of a stripper plate 6 and at the same time that the molded product 7 is pushed, the undercut portion 10 is removed. Since the piston 8 is provided with an inclined angle, the undercut portion 10 can be removed automatically at the same time that the piston goes forth.
JP8536879A 1979-07-05 1979-07-05 Forming mold Pending JPS5610438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8536879A JPS5610438A (en) 1979-07-05 1979-07-05 Forming mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8536879A JPS5610438A (en) 1979-07-05 1979-07-05 Forming mold

Publications (1)

Publication Number Publication Date
JPS5610438A true JPS5610438A (en) 1981-02-02

Family

ID=13856766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8536879A Pending JPS5610438A (en) 1979-07-05 1979-07-05 Forming mold

Country Status (1)

Country Link
JP (1) JPS5610438A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61192821U (en) * 1985-05-27 1986-12-01
ES2302647A1 (en) * 2007-01-10 2008-07-16 Mecanoplastica, S.A. Plastic parts releasing apparatus for mold, has ejecting unit with slidable part associated with ejecter cylinder in inclined position on punch, so that ejecting unit moves slidable parts at angle towards centre of punch
WO2008084128A1 (en) * 2007-01-10 2008-07-17 Mecanoplastica, S.A. Apparatus and method for releasing plastic parts from a mould by forward ejection
ES2308929A1 (en) * 2007-05-22 2008-12-01 Mecanoplastica, S.A. Apparatus and procedure for dismolling plastic parts by expulsion (Machine-translation by Google Translate, not legally binding)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61192821U (en) * 1985-05-27 1986-12-01
ES2302647A1 (en) * 2007-01-10 2008-07-16 Mecanoplastica, S.A. Plastic parts releasing apparatus for mold, has ejecting unit with slidable part associated with ejecter cylinder in inclined position on punch, so that ejecting unit moves slidable parts at angle towards centre of punch
WO2008084128A1 (en) * 2007-01-10 2008-07-17 Mecanoplastica, S.A. Apparatus and method for releasing plastic parts from a mould by forward ejection
ES2308929A1 (en) * 2007-05-22 2008-12-01 Mecanoplastica, S.A. Apparatus and procedure for dismolling plastic parts by expulsion (Machine-translation by Google Translate, not legally binding)

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