JPH01206013A - Injection molding - Google Patents

Injection molding

Info

Publication number
JPH01206013A
JPH01206013A JP63326674A JP32667488A JPH01206013A JP H01206013 A JPH01206013 A JP H01206013A JP 63326674 A JP63326674 A JP 63326674A JP 32667488 A JP32667488 A JP 32667488A JP H01206013 A JPH01206013 A JP H01206013A
Authority
JP
Japan
Prior art keywords
insert
mold
hole
face
molding
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 - Lifetime
Application number
JP63326674A
Other languages
Japanese (ja)
Inventor
Yoshinori Yamamoto
Takashi Harada
Hideki Miyake
San Tomita
Shozo Yokoyama
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.)
TATEMATSU MOLD KOGYO KK
Daihatsu Motor Co Ltd
Original Assignee
TATEMATSU MOLD KOGYO KK
Daihatsu Motor 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 TATEMATSU MOLD KOGYO KK, Daihatsu Motor Co Ltd filed Critical TATEMATSU MOLD KOGYO KK
Priority to JP63326674A priority Critical patent/JPH01206013A/en
Publication of JPH01206013A publication Critical patent/JPH01206013A/en
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/37Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
    • B29C45/376Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings adjustable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2628Moulds with mould parts forming holes in or through the moulded article, e.g. for bearing cages

Abstract

PURPOSE:To make it possible to mold a resin molded item having a through hole and a resin molded item having no through hole in the same mold by a method wherein both a first position, at which the tip face of an insert is flush with the inner face of one mold, and a second position, at which the tip face of the insert nearly abuts against the inner face of the other mold to leave a gap allowing no influx of molten resin therein between the faces, can be realized. CONSTITUTION:An insert 5, which is provided, for example, in the core 3 of a mold 1, is advanced and retreated by means of a hydraulic device 10. When the molding of a molded item having a through hole is intended, injection molding is done under the condition that the insert 5 is moved to the position at which its tip face 5a nearly abuts against the inner face 2a of a cavity 2. When the molding of a molded item the requirement of which is favorable quality external appearance, such as a bumper, is intended, a slight gap G, which allows no influx of molten resin, is left between the tip face 5a and the inner faced 2a of the cavity 2 in order to prevent mark from developing. When the molding of a molted item having no through hole is intended, injection molding is done under the condition that the insert 5 is moved to the position at which its tip face 5a is flush with the inner face 3a of a core 3. When the difference in level is within a certain range, the luster non-uniformity of the surface of a product is brought in the allowable range.
JP63326674A 1988-12-23 1988-12-23 Injection molding Expired - Lifetime JPH01206013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63326674A JPH01206013A (en) 1988-12-23 1988-12-23 Injection molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63326674A JPH01206013A (en) 1988-12-23 1988-12-23 Injection molding

Publications (1)

Publication Number Publication Date
JPH01206013A true JPH01206013A (en) 1989-08-18

Family

ID=18190395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63326674A Expired - Lifetime JPH01206013A (en) 1988-12-23 1988-12-23 Injection molding

Country Status (1)

Country Link
JP (1) JPH01206013A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03247419A (en) * 1990-02-26 1991-11-05 Daihatsu Motor Co Ltd Molding method for duct
EP1266743A2 (en) * 2001-06-13 2002-12-18 Kabushiki Kaisha Tokai Rika Denki Seisakusho Molding apparatus and method for using molding apparatus
NL1024670C2 (en) * 2003-10-30 2005-05-03 Otb Group Bv Method, injection mold, injection molding device for injection molding mutually different injection molded products, as well as a device for manufacturing DVD and an injection molded product with the method.
EP1685939A1 (en) * 2005-01-31 2006-08-02 Denso Corporation Method for efficiently manufacturing various molded products
JP2011104874A (en) * 2009-11-18 2011-06-02 Kojima Press Industry Co Ltd Molding mold

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58216547A (en) * 1982-06-02 1983-12-16 Daifuku Machinery Works Synthetic resin pallet and its molding method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58216547A (en) * 1982-06-02 1983-12-16 Daifuku Machinery Works Synthetic resin pallet and its molding method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03247419A (en) * 1990-02-26 1991-11-05 Daihatsu Motor Co Ltd Molding method for duct
EP1266743A2 (en) * 2001-06-13 2002-12-18 Kabushiki Kaisha Tokai Rika Denki Seisakusho Molding apparatus and method for using molding apparatus
EP1266743A3 (en) * 2001-06-13 2003-05-28 Kabushiki Kaisha Tokai Rika Denki Seisakusho Molding apparatus and method for using molding apparatus
NL1024670C2 (en) * 2003-10-30 2005-05-03 Otb Group Bv Method, injection mold, injection molding device for injection molding mutually different injection molded products, as well as a device for manufacturing DVD and an injection molded product with the method.
WO2005048252A1 (en) * 2003-10-30 2005-05-26 Otb Group B.V. Method, injection mold, injection molding apparatus for injection molding mutually different injection molded products, and apparatus for manufacturing dvd and an injection molded product obtained with the method
EP1685939A1 (en) * 2005-01-31 2006-08-02 Denso Corporation Method for efficiently manufacturing various molded products
JP2011104874A (en) * 2009-11-18 2011-06-02 Kojima Press Industry Co Ltd Molding mold

Similar Documents

Publication Publication Date Title
EP0800906A4 (en) Valve gate type injection molding method and apparatus therefor
JPH03150119A (en) Injection mold
EP0397883A4 (en) Injection compression molding machine and its molding method
MY124308A (en) Method of injection-molding a thermoplastic resin and a mold for injection molding
JPH01206013A (en) Injection molding
JPS6485718A (en) Manufacture of molded product made of thermoplastic elastomer resin
JPH0483621A (en) Molding method of optical molded body having mirror surface
JPH02164509A (en) Injection die
JPS6322620A (en) Method and apparatus for injection molding of molding having recessed part on its surface
JPS57167224A (en) Manufacture of synthetic resin molding with foamed layer
JPS62183319A (en) Molding method and mold for thick cabinet
JPH044115A (en) Painting method of parts of lighting device made of synthetic resin for vehicle
JPS6416623A (en) Mold for plastic lens
JPH03133611A (en) Manufacture of optical parts
JPH0288208A (en) Discrimination method between injection mold and molded product
JPH02164510A (en) Injection die
JPH02229019A (en) Injection mold of shutter for magnetic disk cassette
JPS63268615A (en) Apparatus for coloring surface of molded item
JPS58147327A (en) Manufacture of synthetic resin molded work
JPH02136213A (en) Runnerless injection molding method and apparatus for elastomer
JPS6424714A (en) Insert molding process and mold for insert molding
JPH04172679A (en) Manufacture of disk case
JPH02261612A (en) Both-face insert molding method
JPS6192768A (en) Die device provided with moisture removing device
JPH0267118A (en) Injection mold and method for judging molded product

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term