JPS583228U - injection mold - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図乃至第４図は本考案の実施態様を例示し、第１図
は射出成形装置の中央縦断面図、第２図は型開き時の要
部拡大断面図、第３図は離型時の要部拡大断面図、第４
図は第３図のＩＶ−ＩＶ線における拡大断面図、第５図
および第６図はそれぞれ従来例における第２図および第
３図と同様の図、糖７図は従来得られたバンパの断面図
である。 １・・・・・・射出成形装置、２・・・・・・バンパ（
成形品）、３・・・・・・金型、４・・・・・・固定盤
、５・・・・・・可動盤、６・・・・・・エジェクタプ
レート、１１・・・・・・固定型、１２・・・・・・可
動型本体、１３・・・・・・前部コア、１４・・・・・
・後部コア、１５・・・・・・アンダカット部、２１・
・・・・パエジェクトピン、２４．　２５・・・・・・
摺動面。Figures 1 to 4 illustrate embodiments of the present invention, with Figure 1 being a central vertical cross-sectional view of an injection molding device, Figure 2 being an enlarged cross-sectional view of essential parts when the mold is opened, and Figure 3 being mold release. Enlarged sectional view of main parts of time, No. 4
The figure is an enlarged sectional view taken along the line IV-IV in Figure 3, Figures 5 and 6 are similar views to Figures 2 and 3 in the conventional example, respectively, and Figure 7 is a cross section of a bumper obtained conventionally. It is a diagram. 1...Injection molding equipment, 2...Bumper (
molded product), 3...mold, 4...fixed plate, 5...movable plate, 6...ejector plate, 11...・Fixed type, 12... Movable main body, 13... Front core, 14...
・Rear core, 15...Undercut part, 21・
...Pageject pin, 24. 25...
sliding surface.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] アンダカット部を有する成形品の成形金型であって、ア
ンダカット部の成形部を金型本体とは別体で型開き方向
に対して前記コアと後部コアとで形成し、金型本体を挿
通してエジェクトピンを設ケ、前部コアはエジェクトピ
ンを設け、前部コアはエジェクトピン先端に接続され、
後部コアは型開き方向に対して傾斜した方向の摺動面で
もって金型本体に摺動可能に接続され、かつ型開き方向
に対して略直角な方向の摺動面でもって前部コアに摺動
可能に接続され、金型本体から成形品を離型するとき、
エジェクトピンの型開き方向への移動にともなって前部
コアを同方向へ移動させるとともに、後部コアをアンダ
カット部から離れる方向へ金型本体に対して摺動させる
ことを特徴とする射出成形用金型。A molding die for a molded product having an undercut portion, wherein the molding portion of the undercut portion is formed separately from the mold body by the core and the rear core in the mold opening direction, and the mold body is The front core is connected to the tip of the eject pin, and the front core is connected to the tip of the eject pin.
The rear core is slidably connected to the mold body with a sliding surface that is inclined with respect to the mold opening direction, and is connected to the front core with a sliding surface that is approximately perpendicular to the mold opening direction. Slidably connected, when demolding the molded product from the mold body,
For injection molding, the front core is moved in the same direction as the eject pin moves in the mold opening direction, and the rear core is slid against the mold body in a direction away from the undercut. Mold.