JPH0314043U

JPH0314043U -

Info

Publication number: JPH0314043U
Application number: JP7386589U
Authority: JP
Priority date: 1989-06-23
Filing date: 1989-06-23
Publication date: 1991-02-13
Anticipated expiration: 2004-06-23
Also published as: JPH0713894Y2

Description

[Brief explanation of drawings]

第１図〜第３図は本考案の実施例を示すもので
、第１図は鋳型造型ステージの平面図、第２図は
ブローステーシヨンにおける鋳型造型を示す部分
切欠き縦断正面図、第３図はエジエクトステーシ
ヨンにおける鋳型の離型を示す部分切欠き縦断背
面図、第４図は従来技術に係る第２図相当図、第
５図は従来技術に係る第３図相当図である。Ｍ……鋳型造型装置、Ｔ……回転テーブル、２
……ブローステーシヨン、４……エジエクトステ
ーシヨン、６……シエル砂、７……鋳型、１０，
１１，１２，１３……造型金型、１０ａ，１１ａ
，１２ａ，１３ａ……造型キヤビテイ、１４ａ，
１６ａ，１７ａ，１８ａ……ブロー孔、１４ｂ，
１６ｂ，１７ｂ，１８ｂ……盲部、２０……ブロ
ー機構、２１ａ……ブローノズル、３０……エジ
エクター機構、３１……エジエクトプレート、３
３（３３Ａ，３３Ｂ）……エジエクトピン、３７
……付勢バネ。 Figures 1 to 3 show an embodiment of the present invention, where Figure 1 is a plan view of the mold making stage, Figure 2 is a partially cutaway longitudinal sectional front view showing mold making in the blowing station, and Figure 3 4 is a partially cutaway longitudinal sectional rear view showing the release of the mold in the eject station, FIG. 4 is a view corresponding to FIG. 2 according to the prior art, and FIG. 5 is a view equivalent to FIG. 3 according to the prior art. M...Mold making device, T...Rotary table, 2
...Blow station, 4...Eject station, 6...Ciel sand, 7...Mold, 10,
11, 12, 13... Molding mold, 10a, 11a
, 12a, 13a...molding cavity, 14a,
16a, 17a, 18a...blow hole, 14b,
16b, 17b, 18b... Blind part, 20... Blow mechanism, 21a... Blow nozzle, 30... Ejector mechanism, 31... Eject plate, 3
3 (33A, 33B)... Ejiectopine, 37
...Biasing spring.

Claims

[Claims for Utility Model Registration] Equipped with a transfer means for circulating a plurality of types of molds through at least a blow station and an eject station; A mold is made by supplying shell sand to the molding cavity in the mold, and the ejector mechanism, which has a plurality of ejector pins corresponding to the plurality of blow nozzles and an ejector plate supporting these ejector pins, is used to remove the mold from the mold. In a mold making apparatus configured to release the mold, the part of each mold corresponding to the blow nozzle that is removed from the mold cavity is configured as a blind part without forming a blow hole, and Among the plurality of ejector pins, the ejector pin corresponding to any blind portion of the plurality of molds is provided on the ejector plate so as to be movable in the moving direction of the ejector pin via a biasing member, and the other ejector pins are provided on the ejector plate. A mold making device characterized by being fixedly installed.