JPS6424709A - Mold releasing device for molded object - Google Patents

Mold releasing device for molded object

Info

Publication number
JPS6424709A
JPS6424709A JP18156987A JP18156987A JPS6424709A JP S6424709 A JPS6424709 A JP S6424709A JP 18156987 A JP18156987 A JP 18156987A JP 18156987 A JP18156987 A JP 18156987A JP S6424709 A JPS6424709 A JP S6424709A
Authority
JP
Japan
Prior art keywords
molded object
mold
molded
core mold
rod
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
JP18156987A
Other languages
Japanese (ja)
Inventor
Toshiyuki Iriyama
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.)
Nihon Plast Co Ltd
Original Assignee
Nihon Plast 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 Nihon Plast Co Ltd filed Critical Nihon Plast Co Ltd
Priority to JP18156987A priority Critical patent/JPS6424709A/en
Publication of JPS6424709A publication Critical patent/JPS6424709A/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
    • B29C45/4471—Removing or ejecting moulded articles for undercut articles using flexible or pivotable undercut forming elements

Landscapes

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

Abstract

PURPOSE:To enable the mold release of the molded object with an under cut part to be easily achieved by a method in which after the molding of the object to be molded, the molded object is ejected by transferring a core mold with a pushing rod, and then the core mold is turned by a stretching rod in the direction apart from the under cut part of a molded object. CONSTITUTION:After the molding of the object 1 to be molded, when an ejectior plate 37 is approachably raised relatively to a mold body 21 by the lowering of the mold body 21, a core mold 23 is raised with an ejector pin 35 and a pushing rod 28, and while a molded object 1 is ejected by a prescribed distance, the fixing member 33 on the lower end of the stretching rod 29 brought in contact with the under surface of the molded object 21 and is fixed there. Next, by further continuing the ejecting of the molded object 1, the stretching rod 29 is pulled downward by the mold body 21 by way of the fixing member 33, whereby the core mold 23 is turned in the direction apart from the pawl 2 being the undercut part of the molded object 1 with the connecting shaft 26 with the pushing rod 28 as its fulcrum, and the molded object 1 is released from the mold.
JP18156987A 1987-07-21 1987-07-21 Mold releasing device for molded object Pending JPS6424709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18156987A JPS6424709A (en) 1987-07-21 1987-07-21 Mold releasing device for molded object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18156987A JPS6424709A (en) 1987-07-21 1987-07-21 Mold releasing device for molded object

Publications (1)

Publication Number Publication Date
JPS6424709A true JPS6424709A (en) 1989-01-26

Family

ID=16103096

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18156987A Pending JPS6424709A (en) 1987-07-21 1987-07-21 Mold releasing device for molded object

Country Status (1)

Country Link
JP (1) JPS6424709A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0595491A1 (en) * 1992-10-06 1994-05-04 Kleyn Die Engravers, Inc. Molding apparatus
EP0738578A1 (en) * 1995-04-21 1996-10-23 Valeo Vision Method and mould for injection moulding a glass of an illumination or signalling device of a vehicle
EP0835730A2 (en) * 1996-10-11 1998-04-15 Toyoda Gosei Co., Ltd. Improved steering wheel mold and method of molding
EP0873851A1 (en) * 1997-04-24 1998-10-28 Compagnie Générale des Etablissements MICHELIN-MICHELIN & CIE Mould element for moulding a pattern on a tyre tread band
FR2768360A1 (en) * 1997-09-16 1999-03-19 Allibert Ind Method of opening mold to clear projecting section
FR2793188A1 (en) * 1999-05-06 2000-11-10 Michelin Soc Tech MOLDING ELEMENT AND MOLD FOR MOLDING A CUT IN A TREAD

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0595491A1 (en) * 1992-10-06 1994-05-04 Kleyn Die Engravers, Inc. Molding apparatus
US5456593A (en) * 1992-10-06 1995-10-10 Kleyn Die Engravers, Inc. Molding apparatus for articles having internal undercuts
EP0738578A1 (en) * 1995-04-21 1996-10-23 Valeo Vision Method and mould for injection moulding a glass of an illumination or signalling device of a vehicle
FR2733175A1 (en) * 1995-04-21 1996-10-25 Valeo Vision METHOD AND MOLD FOR INJECTION MOLDING OF AN ICE OF A LIGHTING OR SIGNALING DEVICE OF A MOTOR VEHICLE
EP0835730A2 (en) * 1996-10-11 1998-04-15 Toyoda Gosei Co., Ltd. Improved steering wheel mold and method of molding
EP0835730A3 (en) * 1996-10-11 1999-12-29 Toyoda Gosei Co., Ltd. Improved steering wheel mold and method of molding
EP0873851A1 (en) * 1997-04-24 1998-10-28 Compagnie Générale des Etablissements MICHELIN-MICHELIN & CIE Mould element for moulding a pattern on a tyre tread band
FR2762539A1 (en) * 1997-04-24 1998-10-30 Michelin & Cie ELEMENT MOLDING A PATTERN IN A TREAD
US6193492B1 (en) 1997-04-24 2001-02-27 COMPAGNIE GéNéRALE DES ETABLISSEMENTS MICHELIN - MICHELIN & CIE Element for molding a pattern in a tread
FR2768360A1 (en) * 1997-09-16 1999-03-19 Allibert Ind Method of opening mold to clear projecting section
FR2793188A1 (en) * 1999-05-06 2000-11-10 Michelin Soc Tech MOLDING ELEMENT AND MOLD FOR MOLDING A CUT IN A TREAD
US6454554B1 (en) 1999-05-06 2002-09-24 Michelin Recherche Et Technique, S.A. Molding element and mold for molding a cutout in a tread

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