JPS6277915A - Injection mold - Google Patents

Injection mold

Info

Publication number
JPS6277915A
JPS6277915A JP21785185A JP21785185A JPS6277915A JP S6277915 A JPS6277915 A JP S6277915A JP 21785185 A JP21785185 A JP 21785185A JP 21785185 A JP21785185 A JP 21785185A JP S6277915 A JPS6277915 A JP S6277915A
Authority
JP
Japan
Prior art keywords
ejector
mold
ejector sleeve
plate
sleeve
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
JP21785185A
Other languages
Japanese (ja)
Inventor
Hironobu Yoshida
吉田 博信
Akira Fukaishi
深石 晟
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP21785185A priority Critical patent/JPS6277915A/en
Publication of JPS6277915A publication Critical patent/JPS6277915A/en
Pending legal-status Critical Current

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  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE:To contrive liberalization of mold designing, miniaturization of mold size and simplification of mold manufacturing, by a method wherein a snap pin of a core pin inserted into a ejector sleeve is fitted loosely in a long hole provided at the central part of the ejector sleeve by fitting the ejector sleeve so that the same is positioned on the ejector plate and on an extension line of the center line of an ejector rod. CONSTITUTION:When a top and bottom ejector plates 5, 6 are moved up and down by allowing an ejector rod access to the inside of an opening 4A provided on a moving head die plate 4, an ejector sleeve 7 moves up and down along a core pin 9. Mold designing can be performed freely and manufacturing cost and expenses are reduced by contriving miniaturization of mold size and simplification of mold manufacturing, by situating the ejector sleeve 7 on an extension line of the center line of the ejector rod like this.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は合成樹脂製品の射出成形に用いられる金型に関
するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a mold used for injection molding of synthetic resin products.

〔発明の背景〕[Background of the invention]

従来の射出成形用金型は、例えば文献1射出金型の基本
と応用″(日本プラスチック加工技術協会、 19B0
.10.31)第46頁に記載されたように(第3図参
照)、固定側取付板21.固定側型板22.可動側型板
26.受は板24.スペーサブロック25.可動側取付
板26.該取付板26上(こ止めねじ29に沿って上下
動可能に設けられた上・下エジェクタプレー)27.2
8.該プレート27゜28に取付けられ、かつ前記止め
ねじ29の挿入されたエジェクタスリーブ30およびア
ンギュラピン61とからなり、前記両エジェクタプレー
ト27゜28は金型の中心線32上に位置するエジェク
タロッド(図示せず)により昇降される。また、前記止
めねじ29およびエジェクタスリーブ30は、金型の中
心線62、換言すればエジェクタロッド位置よりずれた
位置に設けられている。
Conventional injection molds can be used, for example, in Document 1, "Basics and Applications of Injection Molds" (Japan Plastic Processing Technology Association, 19B0).
.. 10.31) As described on page 46 (see Figure 3), the fixed side mounting plate 21. Fixed side template 22. Movable side template 26. The receiver is board 24. Spacer block 25. Movable side mounting plate 26. On the mounting plate 26 (upper and lower ejector plates provided to be movable up and down along the setscrew 29) 27.2
8. The ejector sleeve 30 and the angular pin 61 are attached to the plates 27 and 28 and have the set screws 29 inserted therein, and the ejector plates 27 and 28 are connected to the ejector rod ( (not shown). Further, the set screw 29 and the ejector sleeve 30 are provided at a position shifted from the center line 62 of the mold, in other words, from the ejector rod position.

上記のように従来技術では、エジェクタスリーブはエジ
ェクタロッド位置を避けて設計しなければならないため
、金型サイズが大型となり、段取り、加工および運搬な
どに多大の時間と費用を要し、またランナーの長さが長
くなり、成形材料の利用率は低下し、かつ型センタのず
れによるエジェクタプレートの動作が不良となる懸念が
あった。
As mentioned above, in the conventional technology, the ejector sleeve must be designed to avoid the ejector rod position, which results in a large mold size, requiring a great deal of time and cost for setup, processing, and transportation. As the length increases, the utilization rate of the molding material decreases, and there is a concern that the ejector plate may malfunction due to misalignment of the center of the mold.

〔発明の目的〕[Purpose of the invention]

本発明は上記のような従来技術の問題点を解消し、型設
計の自由化、型サイズの小型化および型製作の簡単化を
はかることが可能である射出成形用金型を提供すること
を目的とするものである。
The present invention solves the problems of the prior art as described above, and provides an injection mold that allows freedom in mold design, miniaturization of mold size, and simplification of mold manufacturing. This is the purpose.

(発明の概要〕 本発明は上記目的を達成するために、エジェクタロッド
により上下動されるエジェクタプレート上に設けたエジ
ェクタスリーブ機構を備える射出成形用金型において、
該エジェクタスリーブを前記エジェクタプレート上に、
かつエジェクタロッドの中心線の延長上に位置するよう
に取付け、前記エジェクタスリーブ内に挿入されたコア
ピンの抜け止めピンを該エジェクタスリーブの中央部に
設けた長孔に遊嵌したことを特徴とする1、 〔発明の実施例〕 以下、本発明の一実施例を図面について説明する。
(Summary of the Invention) In order to achieve the above object, the present invention provides an injection mold including an ejector sleeve mechanism provided on an ejector plate that is moved up and down by an ejector rod.
placing the ejector sleeve on the ejector plate;
The ejector rod is mounted so as to be located on an extension of the center line of the ejector rod, and a retaining pin of the core pin inserted into the ejector sleeve is loosely fitted into a long hole provided in the center of the ejector sleeve. 1. [Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings.

@1図は本実施例の平面図、第2図は第1図のA−A断
面図である。同図において、1は固定側型板、2Fi受
は板、5は可動側型板、4は可動側取付板、5.6は可
動側型板3内に上下動可能に設けられた上・下エジェク
タプレート。
Figure 1 is a plan view of this embodiment, and Figure 2 is a sectional view taken along line AA in Figure 1. In the same figure, 1 is a stationary side mold plate, 2 is a plate for the Fi receiver, 5 is a movable side mold plate, 4 is a movable side mounting plate, and 5.6 is an upper part provided in the movable side mold plate 3 so as to be movable up and down. Lower ejector plate.

7は上エジェクタプレート5を貫通し、下エジェクタプ
レート6上に取付けられたエジェクタスリーブで、該ス
リーブ7はエジェクタロッド(図示せず)の中心線8の
延長線上に位置し、かつ受は板2を貫通して固定側型板
1内に突出するように設けられている。9はエジェクタ
スリーブ7内に挿入されたコアピン、10はコアピン9
を貫通し、止め板11に取付けられた抜け止めピンで、
該ピン10ケエジエクタスリーブ7の中央部に、かつ長
手方向に設けられた楕円形状長孔7Aに遊嵌されており
、また前記止め板11は受は板2に取付けられている。
Reference numeral 7 denotes an ejector sleeve that passes through the upper ejector plate 5 and is installed on the lower ejector plate 6. The sleeve 7 is located on an extension of the center line 8 of the ejector rod (not shown), and the receiver is attached to the plate 2. It is provided so as to penetrate through and protrude into the fixed side mold plate 1. 9 is a core pin inserted into the ejector sleeve 7, 10 is a core pin 9
With a retaining pin that penetrates through and is attached to the retaining plate 11,
The pin 10 is loosely fitted into an elliptical elongated hole 7A provided in the center of the ejector sleeve 7 in the longitudinal direction, and the stop plate 11 is attached to the plate 2.

12は固定側型板1内にブツシュ15を介して設けられ
たキャビティである。
Reference numeral 12 denotes a cavity provided within the stationary mold plate 1 with a bush 15 interposed therebetween.

本実施例は上記のような構成からなり、エジェクタ1コ
ツト(図示せず)を可動側取付板41こ設けた開口4人
中に出入させることにより、−ヒ。
The present embodiment has the above-mentioned configuration, and by moving one ejector (not shown) into and out of the four openings provided with the movable side mounting plate 41, -hi is achieved.

下エジェクタプレート5.6を、上下動させれば、7−
ジエクタヌリープ7はコアピン9に沿って上下動する。
If the lower ejector plate 5.6 is moved up and down, 7-
The diagonal leap 7 moves up and down along the core pin 9.

このようにエジェクタスリーブ7をエジエh40ツド位
置、すなわちエジェクタロッドの中心線8の延長線上に
位置させることにより、従来技術の問題点であったエジ
ェクタロッド位置を避けて型設計を行う制約を解消する
ことができる。
By locating the ejector sleeve 7 in the edge h40 position, that is, on the extension of the center line 8 of the ejector rod, it is possible to solve the problem of the prior art in which the mold is designed to avoid the ejector rod position. be able to.

〔開明の効果〕[Effect of enlightenment]

以上説明したように、本発明によれば、エジェクタスリ
ーブをエジェクタロッド上に位置させることにより、型
設計を自由に行うことができ、かつ型サイズの小形化お
よび型捜作の簡単化をはかり、#!作費および経費を軽
減することができる。
As explained above, according to the present invention, by positioning the ejector sleeve on the ejector rod, the mold can be designed freely, and the mold size can be reduced and mold preparation can be simplified. #! Production costs and expenses can be reduced.

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

第1図および第2図は本発明の射出成形用金型の一実施
例を示す平面図および第1図のA−A断面図、第3図は
従来の射出成形用金型の断面図である。 5.6・・エジェクタプレート 7・・エジェクタスリーブ 7A・・・長孔 8・・・エジェクタロッド中心線 9・・・コアピン 10・・・抜け止めピン メ7″′ 代理人うf埋土 小 川 勝 男− 第 3 円 □
FIGS. 1 and 2 are a plan view and a sectional view taken along the line A-A in FIG. 1 showing an embodiment of the injection mold of the present invention, and FIG. 3 is a sectional view of a conventional injection mold. be. 5.6...Ejector plate 7...Ejector sleeve 7A...Elongated hole 8...Ejector rod center line 9...Core pin 10...Keeping pin 7''' Agent Uf fill soil Masaru Ogawa Man - 3rd circle □

Claims (1)

【特許請求の範囲】[Claims] エジエクタロツドにより上下動されるエジエクタプレー
ト上に設けたエジエクタスリーブ機構を備える射出成形
用金型において、該エジエクタスリーブを前記エジエク
タプレート上に、かつエジエクタロツドの中心線の延長
上に位置するように取付け、前記エジエクタスリーブ内
に挿入されたコアピンの抜け止めピンを該エジエクタス
リーブの中央部に設けた長孔に遊嵌したことを特徴とす
る射出成形用金型。
In an injection mold having an ejector sleeve mechanism provided on an ejector plate that is moved up and down by an ejector rod, the ejector sleeve is positioned on the ejector plate and on an extension of the center line of the ejector rod. An injection mold for injection molding, characterized in that a retaining pin of a core pin inserted into the ejector sleeve is loosely fitted into a long hole provided in the center of the ejector sleeve.
JP21785185A 1985-10-02 1985-10-02 Injection mold Pending JPS6277915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21785185A JPS6277915A (en) 1985-10-02 1985-10-02 Injection mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21785185A JPS6277915A (en) 1985-10-02 1985-10-02 Injection mold

Publications (1)

Publication Number Publication Date
JPS6277915A true JPS6277915A (en) 1987-04-10

Family

ID=16710757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21785185A Pending JPS6277915A (en) 1985-10-02 1985-10-02 Injection mold

Country Status (1)

Country Link
JP (1) JPS6277915A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107351332A (en) * 2017-07-28 2017-11-17 宇龙计算机通信科技(深圳)有限公司 It is a kind of to be used for the ejecting mechanism with column structure product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107351332A (en) * 2017-07-28 2017-11-17 宇龙计算机通信科技(深圳)有限公司 It is a kind of to be used for the ejecting mechanism with column structure product

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