JPS56129153A - Automatic dropping device for runner in mold - Google Patents

Automatic dropping device for runner in mold

Info

Publication number
JPS56129153A
JPS56129153A JP3272680A JP3272680A JPS56129153A JP S56129153 A JPS56129153 A JP S56129153A JP 3272680 A JP3272680 A JP 3272680A JP 3272680 A JP3272680 A JP 3272680A JP S56129153 A JPS56129153 A JP S56129153A
Authority
JP
Japan
Prior art keywords
runner
mold
projected part
long
opening operation
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
JP3272680A
Other languages
Japanese (ja)
Inventor
Tadashi Maejima
Hitoshi Maejima
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP3272680A priority Critical patent/JPS56129153A/en
Publication of JPS56129153A publication Critical patent/JPS56129153A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE: To automatically drop the runner simultaneously with a mold opening operation by a method wherein a fixed-side die plate is provided with a long projected part including a runner passage, and a runner stripper plate is provided with a long slit into which the projected part is fitted.
CONSTITUTION: The mold is provided with the fixed-side die plate 1 and the runner strip plate 2, wherein the die plate 1 is provided with the long projected part 10 including the runner passage 14 while the stripper plate 2 is provided with the slit 11 into which the projected part 10 is fitted. After injecting a molten resin into a cavity through the runner passages 14, 15 and solidifying the resin by cooling, the mold components 1, 2, 3, 4 are opened and a molded article 19 is ejected by an ejector pin 20. The solidified runner 21 is slipped out from the runner passages 14, 15 by the mold opening operation and naturally falls downward through the long slit 11. Accordingly, since the runner 21 is automatically allowed to fall simultaneously with the mold opening operation, manual labor is unnecessitated and the molding time is shortened.
COPYRIGHT: (C)1981,JPO&Japio
JP3272680A 1980-03-17 1980-03-17 Automatic dropping device for runner in mold Pending JPS56129153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3272680A JPS56129153A (en) 1980-03-17 1980-03-17 Automatic dropping device for runner in mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3272680A JPS56129153A (en) 1980-03-17 1980-03-17 Automatic dropping device for runner in mold

Publications (1)

Publication Number Publication Date
JPS56129153A true JPS56129153A (en) 1981-10-09

Family

ID=12366838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3272680A Pending JPS56129153A (en) 1980-03-17 1980-03-17 Automatic dropping device for runner in mold

Country Status (1)

Country Link
JP (1) JPS56129153A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59179310A (en) * 1983-03-30 1984-10-11 Matsushita Electric Ind Co Ltd Overflow-separation in mold type metal die device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5026159B2 (en) * 1972-05-19 1975-08-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5026159B2 (en) * 1972-05-19 1975-08-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59179310A (en) * 1983-03-30 1984-10-11 Matsushita Electric Ind Co Ltd Overflow-separation in mold type metal die device

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