JPS6372018U

JPS6372018U -

Info

Publication number: JPS6372018U
Application number: JP16748086U
Authority: JP
Priority date: 1986-10-31
Filing date: 1986-10-31
Publication date: 1988-05-14

Description

[Brief explanation of the drawing]

第１図ないし第３図はこの考案の一実施例を示
すもので、第１図は型閉じ状態を示す断面図、第
２図は型開きの途中の状態を示す断面図、第３図
はノツクアウトの完了した状態を示す断面図、第
４図および第５図は従来例を示す概略図であつて
、第４図は型閉じ状態を示し、また第５図は型開
き状態を示す。１０……固定入子、１１……可動入子、１２…
…製品キヤビテイ、１３……可動部分入子、１５
……スライドコア、１６……トンネルゲート、１
８……ランナ、２２……係合部。 Figures 1 to 3 show an embodiment of this invention, in which Figure 1 is a cross-sectional view showing the mold in a closed state, Figure 2 is a cross-sectional view showing the mold in the middle of opening, and Figure 3 is a cross-sectional view showing the mold in the middle of opening. FIGS. 4 and 5 are cross-sectional views showing a state in which knockout has been completed, and FIGS. 4 and 5 are schematic views showing conventional examples, with FIG. 4 showing the mold in a closed state and FIG. 5 showing the mold in an open state. 10...Fixed insert, 11...Movable insert, 12...
...Product cavity, 13...Movable part insert, 15
...Slide core, 16...Tunnel gate, 1
8...Runner, 22...Engaging portion.

Claims

[Claims for Utility Model Registration] A mold that forms a cavity with a first mold member and a second mold member that can be opened and closed, and that molds a product in a predetermined shape by injecting a molding material into the cavity through a gate. In this method, a slide core is provided that comes into contact with and separates from either the first mold member or the second mold member from a direction different from the mold opening direction as the mold is opened and closed, and the slide core comes into contact with and separates from the mold member from a direction different from the mold opening direction. A tunnel gate is formed in one of the mold members that penetrates the cavity from its contact surface, and the tunnel gate communicates with a runner formed by each mold member and the slide core, and furthermore, A tunnel gate structure in a mold, characterized in that a part thereof is a recessed part that becomes an engaging part in the moving direction of the slide core.