JPS61111713U

JPS61111713U -

Info

Publication number: JPS61111713U
Application number: JP19616784U
Authority: JP
Priority date: 1984-12-27
Filing date: 1984-12-27
Publication date: 1986-07-15

Description

[Brief explanation of the drawing]

第１図〜第４図は本考案の一実施例に係る射出
成形金型を示す断面図、第５図及び第６図は本考
案の他の実施例に係る射出成形金型を示す断面図
、第７図Ａ，Ｂは従来の射出成形金型を示す断面
図、第８図は樹脂製品の一例を示す斜視図、第９
図Ａは樹脂製品の他の例を示す斜視図、第９図Ｂ
，Ｃは第９図Ａに示す樹脂製品を従来の射出成形
金型により成形した状態を示す断面図である。２０…射出成形金型、２１…キヤビテイダイ、
２２…コアダイ、２６…第１エジエクタープレー
ト、２８…駆動ロツド、２９…エジエクターピン
、３０…リターンピン、３１…押し出しロツド、
３２…傾斜面、３３…第２エジエクターピン、３
４…スライドブロツク、３９…押し出しロツド、
４０…スライドコア、４１…ピン、４４…油圧シ
リンダ。 1 to 4 are cross-sectional views showing an injection molding die according to one embodiment of the present invention, and FIGS. 5 and 6 are cross-sectional views showing injection molding molds according to other embodiments of the present invention. , FIGS. 7A and 7B are cross-sectional views showing conventional injection molding molds, FIG. 8 is a perspective view showing an example of a resin product, and FIG. 9 is a cross-sectional view showing a conventional injection mold.
Figure A is a perspective view showing another example of a resin product, Figure 9B
, C are cross-sectional views showing the state in which the resin product shown in FIG. 9A is molded using a conventional injection mold. 20... Injection mold, 21... Cavity die,
22... Core die, 26... First ejector plate, 28... Drive rod, 29... Ejector pin, 30... Return pin, 31... Extrusion rod,
32... Inclined surface, 33... Second ejector pin, 3
4...Slide block, 39...Extrusion rod,
40...Slide core, 41...Pin, 44...Hydraulic cylinder.

Claims

[Scope of utility model registration request]

In an injection mold for molding a resin product having an undercut portion on an end wall, a core die that forms a product molding space with a cavity die is installed so as to be movable toward and away from the cavity die, and the core die is movable toward and away from the cavity die. attaching to the core die an extrusion block that slides along an inclined surface formed on the core die at an angle with respect to the direction; a slide core attached to the core die so as to be slidable in a direction transverse to the direction of approaching and separating movement; A first driving means for separating the slide core from the undercut portion when opening the mold to separate the core die and the cavity die is attached to the core die, and after the slide core moves away, the extrusion block is moved toward the cavity die. An injection molding mold comprising a second driving means attached to the core die.