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JPS5567432A - Metal molds for injection molding - Google Patents

Metal molds for injection molding

Info

Publication number
JPS5567432A
JPS5567432A JP14164578A JP14164578A JPS5567432A JP S5567432 A JPS5567432 A JP S5567432A JP 14164578 A JP14164578 A JP 14164578A JP 14164578 A JP14164578 A JP 14164578A JP S5567432 A JPS5567432 A JP S5567432A
Authority
JP
Japan
Prior art keywords
gate
shutted
vent
blocking means
injection
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
JP14164578A
Other languages
Japanese (ja)
Inventor
Hirokuni Mamiya
Keiji Kagoshima
Teruyoshi Shibata
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP14164578A priority Critical patent/JPS5567432A/en
Publication of JPS5567432A publication Critical patent/JPS5567432A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE: To omit finishing process, carry out reliable mold gassing by providing the gate means by which a gate is shutted when injection is finished and the vent blocking means by which an air vent is shutted when injection is nearly finished.
CONSTITUTION: Between an upper mold 6 and a lower one 7 is provided a cavity 1 and on the lower mold 7, beneath a connecting hole 8 of an air vent 4 to a cavity 1, viz. beneath a gate 2 are respectively arranged a vent blocking means 5, a gate blocking means 3 so that they may freely protrude upward. Pins, sliding doors, moving blocks may be served as their blocking means. When molding materials 11 are injected the pins are fully open and when the gas in the cavity 1 is pushed out the air vent is shutted, then when injection is completly finished the gate beomes shutted. The diameters of the gate, vent can be expanded, increased injection speed is capable of quick filling of injecting material, therefore molding cycle is made shorter.
COPYRIGHT: (C)1980,JPO&Japio
JP14164578A 1978-11-16 1978-11-16 Metal molds for injection molding Pending JPS5567432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14164578A JPS5567432A (en) 1978-11-16 1978-11-16 Metal molds for injection molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14164578A JPS5567432A (en) 1978-11-16 1978-11-16 Metal molds for injection molding

Publications (1)

Publication Number Publication Date
JPS5567432A true JPS5567432A (en) 1980-05-21

Family

ID=15296852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14164578A Pending JPS5567432A (en) 1978-11-16 1978-11-16 Metal molds for injection molding

Country Status (1)

Country Link
JP (1) JPS5567432A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1920675A1 (en) * 2006-11-08 2008-05-14 Sung Yong Chang Artificial nail, artificial nail set, mold for use in manufacture of artificial nail set, method for manufacturing artificial nail, and method for manufacturing artificial nail set

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917838A (en) * 1972-06-07 1974-02-16
JPS4972126A (en) * 1972-09-29 1974-07-12

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917838A (en) * 1972-06-07 1974-02-16
JPS4972126A (en) * 1972-09-29 1974-07-12

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1920675A1 (en) * 2006-11-08 2008-05-14 Sung Yong Chang Artificial nail, artificial nail set, mold for use in manufacture of artificial nail set, method for manufacturing artificial nail, and method for manufacturing artificial nail set
JP2008119441A (en) * 2006-11-08 2008-05-29 Sung Yong Chang Artificial nail, artificial nail set, mold for use in manufacture of artificial nail set, method for manufacturing artificial nail, and method for manufacturing artificial nail set

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