JPS5929138A - Mold for injection molding - Google Patents

Mold for injection molding

Info

Publication number
JPS5929138A
JPS5929138A JP13787682A JP13787682A JPS5929138A JP S5929138 A JPS5929138 A JP S5929138A JP 13787682 A JP13787682 A JP 13787682A JP 13787682 A JP13787682 A JP 13787682A JP S5929138 A JPS5929138 A JP S5929138A
Authority
JP
Japan
Prior art keywords
gate
main body
mold
product
die body
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
JP13787682A
Other languages
Japanese (ja)
Inventor
Isao Imabayashi
今林 功
Mitsuo Hatakeyama
畠山 光男
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP13787682A priority Critical patent/JPS5929138A/en
Publication of JPS5929138A publication Critical patent/JPS5929138A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/38Cutting-off equipment for sprues or ingates

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE:To provide the titled mold for cutting off a gate when a resin product is taken out from the mold, constitutd from such a mechanism that a gate block forming a thin walled gate having a long width is supported by a pin piercing a core die main body to be moved to approaching and parting directions. CONSTITUTION:A thin walled gate having a long dimension is formed between a core die main body 2 and a gate block 14 which is, in turn, supported by the core die main body 2 through a pin 13. Pushing plates 17, 18 are brought into engagement with the pin 13 and driven so as to move the gate block 14 to approaching and parting directions with respect to the core die main body 2.

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は、金型内でゲートを樹脂製品から切除するよう
にした射出成形用金型に関−4る。 種々の形状の樹脂製品を射出成形するには、キャビティ
タイ本体とコアダイ本体とからなる射出成形用金型に形
成された製品成形部内に加熱溶融状態の前回tM性樹脂
を射出充填し’Cfjな4つitで6>る。このような
射出成形用金型にあって1.L、加熱溶融状態の樹脂を
吐出覆るスプールと製品成形部との間に、ランチとゲー
トとが設置JI−)れ((入る。 ランプは溶融状態の樹脂がCきるだり抵抗を少’cKく
スムーズに流れるにうに設りられたものCあり、ランプ
はスプールとグーI・とを結ぶ測道となる。 このランチの終了点に位[するのがグー[・であり、製
品成形部への樹脂の人1−1部となつ−(いる。 ゲートの断面形状は円形、半円形、長方形及び台形等が
通’7fi ”Cあり、計保成形部の側面にゲートが設
けられIこ場合、これはり−イドゲ−1・又はコニツヂ
グ−1−と呼ばれる。また、金型のパーティング而、つ
まりキlyビyイダイ本体とコアダイ本体との分割面に
位置づるランプからグー1−を1〜ンネル状に金型内に
掘り込んだゲート・はトンネルゲート或いはり′ブマリ
ングートと呼ばれている。こ4Lらのグー1−1特にト
ンネルゲートはその構成の特質から、キトビjイダイ本
体とコアタイ本体とを相11に分N1さμるいわゆる型
開き1時に同時にゲートを切除づることが可能である。 しかしながら、これらのグー1〜を用いて樹脂成形りる
場合、1つの樹脂製品を成形づるには、1つのグー1−
の断面積を人ぎくてさないため複数のゲートを設置ノる
必要がある。そしC1複数のゲートから金型内の製品成
形部に溶融状態の樹脂を射出充填りると、樹脂製品にウ
ェル1〜マークやフローマークが生ずるIJ能性がある
。 つiTルドン−りはrン1ルドラインとも呼ばれ、異な
ったグー[・から射出された2つの流動性の樹脂の先端
が衝突して融着した部分に細い線が発生する現象であり
、)1:J−マークは製品の表面にゲートを中心として
同心円状の光沢或いは肌荒れを生ずる現象である。これ
らの現象が生ずると、樹脂製品の外観が不良どなり、樹
脂製品どして好ましくない。これらの現象の発生を防+
Lづるグーi〜の形状として、フィルムゲート或いは7
フアンゲートがある。 フィルムゲートはフラッシュグー1−1或いはスリット
グー1−とも呼ばれ、グー1への厚みを0.2〜11稈
j宴に薄く形成しかつ樹脂製品の長手方向に治って長く
形成したグーt−′c′あり、第1図は断面U字形の樹
脂製品WをフィルムゲートGを用いて成形した状態を示
1斜視図であり、樹脂製品を金型から取り出しIζ状態
Cは、ランナ[でとグー1− Gが樹脂製品と一体とな
っている。フッ・ングー1〜Gを用いC射出成形を行な
−)場合には、1つのゲートからの樹脂の射出充填を行
なうことが可能なことがらつrルドマークやフローマー
クが発生1!ずに、表面仕」−がりの良好な製品が4F
7られる反面、型開き時にゲートを切除づることか困難
であるという問題点があった。 これは、ファンゲートつまりランプから扇形に薄肉のゲ
ートを形成し/e場合にし同様であっ1.:。 そのため、従来は第1図のようにランナR及びクー[・
Gが樹脂製品と一体となった状態で金型から取り出し、
プレス或いは人手によってグー1一部を樹脂製品から切
除する必要があり、作業能率が悪いとい−う問題点があ
った。特に強度の大きい樹脂I/11’!+を用いて成
形した場合に、これを人手により切除りることは作業性
が極めて悪い。 本発明は上述のような従来技術の問題点に鑑み、フィル
ムグー[・又は)1ンゲートのにうにゲートの肉厚を蒲
<シかつ製品の長手方向に幅の長いグー[・を用いる場
合に、金型内でゲート部を樹脂製品から切除し得るよう
にし、割出成形の作g nli率の向上を図ることを目
的と−4るものである1、かがる目的を達成りるための
本発明の構成はキトビiCタイ本体とこれに対しC相対
接近離反移動可能な」アグイ本体との間に製品成形部を
形成1)、前記i:pビjcダイ本体に設G、Jられた
スプールがら射IJfされる溶融状態の樹脂を前記製品
成形部内に充1111=するにうにした射出成形用金型
におい(、前記コアタイ本体どの間で薄肉(゛がっ幅の
長い」法のゲートを形成するとともにキ1?ビ’r =
(ダイ本体に嵌合可能なゲートブロックを、前記−1ア
タイ本体を1通づるビンにより前記二])シダイ本体に
支持し、このグー1〜ブに1ツクを前記接近ll1l1
反方向に移動づる駆動手段を前記ビンに接続しでいる。 次に12−5図に示づ本発明の一実施例について説明覆
る。第2図は第1図に示すJ5うな軸直角断面がU字状
をした樹脂製品Wを04出成形づるための金型を示4図
であり、射出成形用金型は、固定側のキt・ピアCダイ
本体1と61初側の−1ノアダイ本体2どを右し、これ
らを第2図に示IJ、うに型合わせしたときに、製品成
形部(キレビア(> 3が形成される。=t: I7ビ
テイダイ本体1はスペーク4を介しく取付板5に固定さ
れ、この取付板5には図外の射出成形機本体が取(=J
 IJら1′1テいる。そ1]て、1j7ダイ木休2は
スペーク−6を介しC取fτ1板7に固定され、この取
(=J板7には図外の駆動装置が取(=lUられζおり
、この駆動装置により−J 7ツク本体2は1 I−ピ
ー1イダイ木休1に対しく接近離反移動づるようになっ
ている。 取(=J板5に設(ノられIこス1−ル8と、+ トヒ
iCダイ木1木1に12りられIこノスルノッシュ9と
の間にはランカーブ11ツク10が数句
The present invention relates to an injection mold in which a gate is cut out from a resin product within the mold. In order to injection mold resin products of various shapes, the product molding part formed in the injection mold consisting of the cavity tie body and the core die body is injected and filled with the previously tM resin in a heated and molten state. 6>ru with 4 IT. In such an injection mold, there are 1. L, A launch and a gate are installed between the spool that discharges and covers the heated molten resin and the product molding section. There is a part C installed to ensure a smooth flow, and the lamp serves as a measuring trail connecting the spool and the goo I. At the end of this lunch is the goo, and the ramp to the product molding department. The cross-sectional shape of the gate is circular, semicircular, rectangular, trapezoid, etc., and the gate is provided on the side of the molded part. This is called ``Idoge-1'' or ``Konitsujigu-1''.In addition, the goo 1- is drawn from the lamp located on the dividing surface of the mold parting body and the core die body. The gate dug into the mold in the form of a tunnel gate is called a tunnel gate or a ``buma ringut.'' Due to the characteristics of the structure, the tunnel gate in particular has two parts: the main body of the main body and the main body of the core tie. It is possible to cut out the gate at the same time at the so-called mold opening 1 time when N1 is divided into phase 11. However, when molding resin using these materials 1 to 1, it takes , one goo 1-
It is necessary to install multiple gates to avoid cluttering the cross-sectional area. When molten resin is injected and filled into the product molding part in the mold through a plurality of C1 gates, there is an IJ possibility that well 1 marks and flow marks are generated in the resin product. Redundancy is also called a red line, and is a phenomenon in which a thin line is generated at the part where the tips of two fluid resins injected from different goo collide and fuse together. 1: J-mark is a phenomenon that causes concentric gloss or roughness on the surface of the product centered around the gate. When these phenomena occur, the appearance of the resin product becomes poor, which is not desirable for the resin product. Preventing the occurrence of these phenomena +
As the shape of L Zuru Goo i~, film gate or 7
There is a fan gate. Film gate is also called flash goo 1-1 or slit goo 1-, and it is a goo t- that is formed thinly to the thickness of goo 1 from 0.2 to 11 times and cured in the longitudinal direction of the resin product to be long. Figure 1 is a perspective view showing a state in which a resin product W having a U-shaped cross section is molded using a film gate G. Goo 1-G is integrated with the resin product. When C injection molding is performed using Fu-Ngu 1-G, it is possible to inject and fill the resin from one gate, causing red marks and flow marks 1! Products with excellent surface finish are on the 4th floor.
However, there was a problem in that it was difficult to cut out the gate when opening the mold. This is similar to the case where a fan gate, that is, a thin fan-shaped gate is formed from the lamp. :. Therefore, in the past, as shown in Fig. 1, the runner R and the
G is removed from the mold in a state that it is integrated with the resin product,
It is necessary to remove a portion of the goo 1 from the resin product using a press or manually, resulting in a problem of poor work efficiency. Particularly strong resin I/11'! When molded using +, it is extremely inefficient to cut it out manually. In view of the problems of the prior art as described above, the present invention has been developed to reduce the thickness of the gate of a film goo [or) one gate and to use a film goo that has a long width in the longitudinal direction of the product. The purpose is to make it possible to cut out the gate part from the resin product in the mold and improve the production rate of index molding.1.To achieve the purpose of darning. The structure of the present invention is to form a product molding part between the KITBI iC tie body and the AGUY body which can move toward and away from the I:PBI JC die body. In the injection mold, the molten resin injected from the spool is filled into the product molding part. At the same time as forming Ki1?B'r =
(A gate block that can be fitted into the die body is supported on the die body by means of a bottle holding one tie body in the -1), and one block is attached to the grooves 1 to 5 in the approach
A drive means for moving in the opposite direction is connected to said bin. Next, an embodiment of the present invention shown in FIG. 12-5 will be explained. Fig. 2 shows a mold for injection molding the resin product W having a U-shaped cross section perpendicular to the J5 axis shown in Fig. 1. When the T-pier C die body 1 and the -1 Noah die body 2 on the first side of 61 are placed on the right, and these are molded together as shown in Fig. 2, the product molding part (Kirevia (> 3) .=t: The I7 bit die main body 1 is fixed to a mounting plate 5 via a spacer 4, and an injection molding machine main body (not shown) is attached to this mounting plate 5 (=J
There are IJ et al. 1], the 1j7 die Kikyu 2 is fixed to the C-shaped fτ1 plate 7 through the spacer 6, and this The device allows the -J7 block main body 2 to move toward and away from the 1 I-P1 Idai Koku 1. , + Tohi iC Daiki 1ki 1 ni 12 rirere I Konosrunosh 9, there are several rank curves 11 tsuku 10

【ノられ、図外
の射出成形機本体からスプール8に吐出した溶融状態の
樹脂は、ランプーグ[]ツク10及びノス゛ルプッシュ
9中を通り、ノズルプツシ」9の先OS +=設Gtら
れI、ニスブール11から吐出づるJ、−うにイよって
いる。ランリーブ11ツク10及びノスルツ゛ツシュ9
には、ここを流れる樹脂の固化を防+l−iJ−るため
のヒータ12が取(q4)られ−(いる。 コアダイ本体2に形成された孔2a←−1よ、移動ピン
133が摺動自在に円通され、この移動ビン13の先O
罎にはキトビJ(ダイ水(木ルニタ寸し着IIf2 n
]7[に嵌合りるゲートツl二1ツク14か取付IJら
4′シている。 このグー1へブロック14は第2図に示りJ、う(C両
ダ・イ本体1.2のバーーアrング面を接触さ1!たど
きに、コアタイ本体2との間にグー1− Gと、これと
スプール11とを結ぶランノ゛[セとが形成さfしる。 このゲート0は第1図に承りように薄肉でIJlつ樹脂
製品の長手方向に沿って長い幅用法の)Cルムゲートと
なつ−(いる。 コアタイ本体2、スペーク°6及び取f」板71こより
囲まれた空間15内には、第1.第2及び第3の押出板
16.17.18が設りられており、この第1押出板1
6には一1アタイ木休2を前記キVビテイダイ本体1に
対しく接近#ll1反移動方向に駆動づるIこめの前記
図外の駆動装置に装着されIこ駆動1−1 ラド19が
結合され(いる。更にこの第1押出板16には−jツノ
グイ木本体に形成された孔20゜2(1をそれぞれ円通
りるリターンピン20と押出しピン21とが取付りられ
ており、第2図に承りように二lアダイ本体2と=1ト
ヒ゛1イダイ本体1とを型締めしたときに、これらのリ
ターンビン20と押出しピン21の先端部がコアタイ本
体2の表面と同−而となるようにリターンビン20と押
出しピン21の長さが定められている。押出しピン21
は第1押出板16のコj7ダイ本体2←二対する接近移
動にJ、り二:+−7)ダイ本体2から成形後の樹脂製
品Wを取り出りためのものCあり、リターンビン20は
両タイ本体2のバーティング面を接触(させたときに、
第1押出板16を第2図に示づ状態に復帰さけるための
ものである。 前記第2押出板17には前記移動ビン13が第1押出扱
゛16に形成された孔IGaを川通しC取(J IJら
11、その手品に前記第1押出板16J、り突出した係
合ピン22が、この第2押出板′17に形成さ4また孔
i7aをU4通して炭1〕られ(おり、この係合ビン2
2の先端には、ff11押出板10が−lアタイ木本体
に対しく所定路111+1接近移動した後に、第1押出
扱゛16と第2押111仮17が−11ダイ本IA′″
2に接近移動りるように、第2押出仮′17ど当j8す
るフランジ部23が形成されている1゜このフランジ部
23が第2押11目ル17と当接し、駆動し]ラド19
)の前進し二J、り第2押出板゛17が第1押出板1〔
5どともに所定距*l::+アグイ本体2に対しくIF
1進したどきに、第3押出板18が]ノ′タイ木イホ2
に向っ(移動を開始りるまうに、係【)シ゛ン24を前
記第2押出板17に取4=JGJ、この係合ピン2/I
の他端は前記第33押出板1F3に開設し・た孔18a
を11通して伸延し、イの端部にフランジ部25を形成
しくいる。またこの第こ3押出板1ε3には−lジIク
タピン2Gを取fす()(あり、このIジJクタビン2
(3より二1アタイ木休2のテーバ保持部2[にJ3る
樹脂保Hi力にJ’J勝つCランノ1くを型外に突さ出
づようにしCいる。 なお、図中、旬月27.28は前記押出板間の距離を用
制覆るスペークC“あり、17b、iε31〕は駆り1
「二1ツド19が第2.第3押出板17,18を挿通づ
る通孔Cある。 、1述のように第1及び第2押出板16.17と移動ビ
ン13%によつCグー[ヘノ゛1」ツク14を駆動りる
ための駆動手段が構成されている。尚、リターンビン2
0及び押出しピン21は、−でれぞれ1木り゛つ図示さ
れ(いるが、樹脂製品W及び−1ツノグイ木休2の人き
さによっCは、イf意の数とづることが可能(あり、同
様に、移動ビン13の数も任意の本数とすることがrl
l rili ’rある。ま/、:第1゜第2.第3押
出板16.’17,1ε3はイJ【ぞれ押出しピン、移
動ビン、1ジ「フタビン等を固定づるために2枚の板を
小ね合lることにJり構成(−7ている1゜ 次に作用を説明覆る。 第2図に示りJ、うに、二jアタ・r本体2を1トヒア
イ本体1に接触さけて型締めした後に、:111ビjイ
木休1に対り−る押付力をコアダイ本体2に加えた後に
スプール11から溶融状態の樹脂がグートブ1」ツク1
4と二】1ダイ木休2との間に形成され/jランフ1ざ
及びグーt−Gを通つ−(製品成形部3内に充填される
。射出工程が終了しI、:樹脂が冷加され′T、硬化し
た後、コアタイ本体2を第1.第2及び第33押出板1
6,17.18と共にキt・じアイ本体から前位移動さ
せる。これにより。樹脂製品Wは二Jアダイ本体2と」
tにキトビーiイダ・イ本体1から断れる。、その後、
駆動■ラド19を′:1アタイ木休本体対して前進され
ることにより、第3図に承りように押出しビン21が樹
脂製品Wをl’l 11.+1、この製品突出しにより
、製品Wは図上におして右方へ移動りるが、係合ビン2
2のフランジ部23と第2押出板゛17との間には所定
の間隔があるため、このフランジ部23が第2押出板1
7に当接するまではゲートブロック14はグー1〜Gと
ランナRをコアダイ本体2との間で挟持している。 したがって、このゲートG等の保持と製品Wの突1Jロ
ノとにより、薄肉のグーh Gは樹脂製品Wから切除さ
れる。引き続き、第1押出板16を駆動1]ツド19(
二よりコアタイ本体2に対しC前進さければ、第4図に
承りように第2押出板17により移動ビン13が前進1
)(ゲートG及びランナ1(のゲート”1[Iツク14
による挟持を解く。 さらに、駆動ロンド19を前進させると、第2押出板1
7に取イリ【)た係合ビン2/Iのフランジ部、25が
第3押出板18に当接し、第5図に示t J、うに、第
3押出板18に取イ(H)たJ−ジJクタピン2Gを突
出させ、テーバ保持部2[において保持していたグー1
−(、?の廃材を、コアダイ本体2/Jlら押し出し、
グーh G A3 J:びランノ1では自車により落下
することになる。このJ:うに、金型内から樹脂製品を
取り出りときに、ゲートG及びランナRし確実に金型か
ら取り除くことが可能と4Tす、円滑なQJ出成形を連
続して行なうことが可能となる。次いで、」アダイ本体
2をキトビテイタイ本体1に接触さけることにより、次
の射出成形を開始し得る状態とづる。 第6〜10図に示すものは本発明の他の実施例を承りも
ので、第2〜5図に示づ射出成形用金型を180度回転
変位させ、樹脂の耐用部分を、Lニー 13へ佐賀さμ
たもの(ある。単に180111回転変(スIしIこの
みの場合には、ゲートブロック14による廃材の挟持を
解放して、■ジェクタピン26にJ、る突き出しによる
動作を行ない廃材を放出りれば、この廃材が=11ダイ
本体の上に落−1−Jることになり、成形の連続運転に
支障を生じるため、この廃材の除去方法を前記実施例と
多少変更しlいる。 なお、以下本実施例の説明に当り、第2−・5図に示4
部材と同一機能を果す部材には同−旬月をイζI シz
ぞの説明は11る。 この実施例ではff11.jFI2及び第3押出板16
゜17.18の移動をガイドづるガイドビン30と、ゲ
ートG及びランナ1セ等の廃材を所定位置ま′C″搬出
した後に落下さUる搬出機構31が前述のらの相透して
いる。 このガイドビン3oは前記IFII、第2.第3押出板
16.17.18にそれぞれ開設され!、:通几16C
,17C,18Cを挿通し、一端は′j1タイ木休本体
、他端は取付板7にそれぞれ固着されCいるが、前記通
孔16C,17G 、18Cには各押出板16.17.
18の摺動を容易にりるため、油溝を右づるブツシュ3
2等が嵌首されCいる。 前記搬出機構31は、前述ど同様の1ジエクタビン26
を、第3揮出板18に取イ(目ノでいるが、この第3押
出板18の取付端部はフランジ部33と第3押出板18
との間にコイルばね34を介装Jるどどちにこの二1−
ジェクタビン26の端部を第3押出板18に開設しに通
孔35より外部に突出している。この通孔35の直近位
置には押出リンク36をビン37により支持し、この第
3押出板18が所定距餡前進し−(−スペーサ6に取(
J l:Jた突片38にこの押出リンク36の一端が当
接づれば、該押出リンク36は傾動して、前記IジJ−
クタピン26の後端を押圧するように構成しCいる。 次に作用を説明Jる。 第6図に承りように、]アダイ本1ホ2を−1ヤビティ
本体1に接触させて型締めした後に、:II・ビティ本
体1に対づる押付力を」アダイ本体2に加えた襖にスプ
ール11がら溶融状態の樹脂がゲートブロック14ど−
Jアダ・イ本体2との間に形成されにランJ−R及びグ
ー1−〇を通っ(製品成形部3内に充填づる。射出工程
が終了し樹脂が冷却され”c l1lli化L/ タF
t、ニー1アダイ本体2に加えられていlc押ト1ツノ
を解さ、」アダイ本体2を第1.第2及び第3押出板1
6..17.18と共にキ(rじiイダイ本体から前原
移動させる。これにより、樹脂製品Wはニー1フツダイ
木休2と共にキャビjイダイ本体1から頗れる。ぞの後
、駆動ロッド19を]ノアクイ本体2に対して前進さけ
ることにより、第7図に示づように押出しビン21が樹
脂製品Wを押出1゜この製品突出ににり製品Wは図1に
a3いてノ1方l\移1/1.’!lるが、係合ピン2
2のノランジ部23と第2押出板17どの間には当初所
定の間隔があるlζめ、この7リング部23が第2押出
板17に当接ヴるまではグーt・ブロック14はゲート
0とランナRを=1フ7ダイ本体2との間で挟持しくい
る。 しI、二がっ(、このグー1− Gなとの保持と製品W
の突き出しとにより、薄肉のグーh Gは樹脂製品Wか
ら切除される1、引き続き、第1押出板1Gを駆動【」
ラド19にJ、す]コアダイ本体に対しく前進させれば
、第8図に示づようにワークWは押出しビン21の前進
によりダイJこり突出され、シー1−[・笠の1.に落
トし、また第2押出仮17 h二より移動ビン13が前
進し、ゲートG及びリングRのグーI−,71,11ツ
ク14による挟持を解り5.さらに駆動1−1ツド10
を前進さlるど、第2押出板17に取イ;ロノIJ係合
ビン2/Iのノランジ部25が第3押出板18に当接し
、第9図に承りように、第3押出板18に取イ;1りた
上ジ]−クタビン26j8突出させるとともにこの第3
押出板18に基端を固活し、他端に廃lど凹凸嵌合づる
凹所;30をイ1づる廃材支持ビン/IOを同時に突出
させる。この突出にょリデーバ保持部2[k二、13い
(保持しくいたゲートG等の廃材を、コアダイ本体2が
ら押し出り。しかしこの廃材はこの段階では落下しない
。 さらにこの突き出しが、第10図に実線で示づ廃材の位
誦まで(jなわれると、突ハ3ε)に押出リング36の
一端が当接し、この押出リング36はビン37を中心に
回動し、J−ジ、Lクタビン26の後端を押l■づる。 この押圧により、廃材支持ピン/IOに支持さねでいた
廃材は、での凹凸嵌合を解かれ、−Zl 77タイ本I
A 2の突出部分を越え(自重にJ、り前駅シコー1〜
1に落ドする。 このように、金型内がら樹脂製品を取り出1ときに、ゲ
ートG及びランプR’t> Mr実(こ金型/)+ +
ら取り除くことが可orXとなり、円滑な口・1出成形
を連続しC9jなうことが可能となる。次い(゛、7−
H77タイ本体2をキ17ビアfダイ本体1に接触さけ
ることにより、次の射出成形を開始し1aる状態とする
。 なお、グー1− G (7)fli類としては、フィル
ムゲート以外にもファングー1へとJること(j可能で
ある。 更に、図示実施例ではキt?ビーフ(ダイ本体゛1を固
定側か金型どしたが]ン7ダイ本体2を固定側の金型と
づることら可能である。 以」二のように本発明にJこれば、ニレ・ピフイダイ本
体とこれに対しく相対接近離反移v1可能な」アダイ本
体との間に製品成形部を形成し、前記キトビティタイ本
体に設りられたスプールから射出される溶融状態の樹脂
を前記製品成形部内に充填づるようにした射出成形用金
型にJ3いて、前記コアダイ本体との間で薄肉eかつ幅
の良いXJ法のグーi〜を形成づるどどもに:1トビテ
ィダイ本体に嵌合可能なグー[・ブロックを、前記コノ
7り、イ本体を貫通Jるビンにより前記コアダイ本体に
支持し、このゲート10ツクを前記接近離反方向に移動
!iる駆動手段を前記ビンに接続しくので、樹脂成形後
に樹脂製品を金型から取出(ときに、ゲートを製品から
切除りることか可能どなり、従来のに・)に人手或いは
、ブレス等によりグー1−の切除作業が不要どなり、フ
ィルムゲート或いは、ファングー1−を用いることによ
り樹脂成形品のイ11.がりを良好どしつつ、射出成形
の作業能率を大幅に向−1することが可能となつIこ。
[The molten resin discharged from the injection molding machine main body (not shown) into the spool 8 passes through the Lampug []tsuk 10 and the Nozzle Push 9, and passes through the Nozzle Push 9 to the OS + = Set Gt I, Nisbourg. J, which is discharged from 11, - is according to the sea urchin. Runleaves 11 Tsuku 10 and Nosuru Tsutsutsu 9
A heater 12 is installed (q4) in order to prevent the solidification of the resin flowing therein. The tip of this movable bottle 13 is
The book is Kitobi J
] 7 [The gate fittings 14 and 4' are installed. The block 14 is connected to the core tie body 2 as shown in FIG. G and a run hole connecting this and the spool 11 are formed. As shown in Fig. 1, this gate 0 is thin and has a long width along the longitudinal direction of the resin product. In the space 15 surrounded by the core tie main body 2, the spacer 6 and the plate 71, first, second and third extruded plates 16, 17 and 18 are installed. This first extrusion plate 1
At 6, the 11 Atai Kikyo 2 approaches the V bit die main body 1 and is attached to the drive device (not shown) of the I which is driven in the counter-movement direction, and the I-1 drive 1-1 is connected to the Rad 19. Furthermore, a return pin 20 and an extrusion pin 21 are attached to the first extrusion plate 16, which pass through holes 20゜2 (1) formed in the -J horned wood body, respectively. As shown in the figure, when the two die bodies 2 and the two die bodies 1 are clamped together, the tips of the return bins 20 and extrusion pins 21 become the same as the surface of the core tie body 2. The lengths of the return bin 20 and the ejector pin 21 are determined as follows.
J7 is for the approach movement of the first extrusion plate 16 toward the die body 2←2, ri2: +-7) There is a device C for taking out the molded resin product W from the die body 2, and a return bin 20. When the barging surfaces of both tie bodies 2 are brought into contact,
This is to prevent the first push-out plate 16 from returning to the state shown in FIG. In the second extrusion plate 17, the movable bottle 13 passes through the hole IGa formed in the first extrusion plate 16 and takes it out (J IJ et al. A dowel pin 22 is formed in this second extrusion plate 4 and is inserted through hole i7a (U4).
At the tip of 2, after the ff11 extrusion plate 10 moves close to the -l tie wood body by a predetermined path 111+1, the first extrusion handle 16 and the second push 111 provisional 17 are attached to the -11 die main body IA'''.
A flange portion 23 is formed to abut against the second extrusion temporary '17 so that the flange portion 23 comes into contact with the second press 11 eye 17 and is driven] Rad 19
) moves forward and the second extrusion plate 17 moves forward to the first extrusion plate 1 [
5 Predetermined distance to both *l::+IF to Agui body 2
When the number is 1, the third extrusion plate 18 is
4=JGJ, this engagement pin 2/I.
The other end is a hole 18a opened in the 33rd extrusion plate 1F3.
11, and form a flange portion 25 at the end of A. Also, this third extrusion plate 1ε3 has a -l diagonal I-shaped pin 2G () (there is this I-shaped diagonal I-shaped pin 2G).
(From 3, the resin holding part 2 of 21 Attai Kikyu 2 is made so that the C runno 1 that wins J'J is protruded outside the mold. Month 27.28 has a space C" covering the distance between the extruded plates, 17b, iε31] has a drive 1
There is a through hole C through which the second and third extrusion plates 17 and 18 are inserted. A driving means for driving the [heno 1] hook 14 is constructed. In addition, return bin 2
0 and the extrusion pin 21 are shown in the figure with one number each (although there is one, depending on the personality of the resin product W and -1 Tsunogui Kikyu 2, C can be spelled as an imaginary number). (Yes, similarly, the number of moving bins 13 can be set to any number.
There is l rili'r. Ma/,: 1st ゜ 2nd. Third extrusion plate 16. '17, 1ε3 is made up of two plates that are screwed together to fix an ejector pin, a moving bottle, a lid bottle, etc. (-7) As shown in Figure 2, after clamping the body 2 to avoid contact with the body 1, press it against the body 1. After applying force to the core die body 2, the molten resin flows out from the spool 11.
4 and 2] is formed between the 1 die and the resin passes through the lamp 1 and the goo t-G. After being cooled and hardened, the core tie body 2 is inserted into the first, second and third extrusion plates 1.
6, 17. With 18, move the kit/jiai body to the front. Due to this. Resin product W is 2 J Adai body 2.
To t, I can refuse from the main body 1 of Kitbee Iida. ,after that,
By moving the driving rod 19 forward with respect to the main body, the extrusion bottle 21 releases the resin product W as shown in FIG. 3. 11. +1. Due to this product protrusion, the product W moves to the right in the diagram, but the engaging bin 2
Since there is a predetermined distance between the flange portion 23 of the second extrusion plate 17 and the second extrusion plate 17, this flange portion 23 is connected to the second extrusion plate 1
Until the gate block 14 comes into contact with the core die body 2, the gate block 14 holds the goos 1 to G and the runner R between the core die body 2 and the core die body 2. Therefore, by holding the gate G and the like and protruding the product W, the thin goo hG is cut out from the resin product W. Subsequently, the first extrusion plate 16 is driven 1] butt 19 (
If the core tie body 2 is moved forward C from the second position, the movable bin 13 is moved forward 1 by the second extrusion plate 17 as shown in FIG.
) (gate G and runner 1
Release the pinch caused by Furthermore, when the driving iron 19 is advanced, the second extrusion plate 1
The flange part 25 of the engaging bottle 2/I, which was removed at 7, comes into contact with the third extrusion plate 18, and as shown in FIG. The J-jita pin 2G is protruded, and the goo 1 held in the taber holding part 2[
−(、? Extrude the waste material from the core die body 2/Jl,
Goo h G A3 J: In Biranno 1, you will fall due to your own car. When taking out the resin product from the mold, it is possible to securely remove it from the mold using gate G and runner R, and it is possible to continuously perform smooth QJ extrusion molding. becomes. Next, by bringing the mold body 2 into contact with the mold body 1, a state is established in which the next injection molding can be started. The ones shown in FIGS. 6 to 10 are based on other embodiments of the present invention, in which the injection mold shown in FIGS. To Saga μ
In the case of 180111 rotational change (S I and I), simply release the waste material from the gate block 14 and eject the waste material by ejecting the ejector pin 26. Since this waste material falls onto the =11 die body and causes a problem in the continuous operation of molding, the method for removing this waste material is slightly changed from the above example. In explaining this embodiment, as shown in Figures 2-5,
For parts that perform the same function as other parts, the same month is given.
The explanation is 11. In this embodiment, ff11. jFI2 and third extrusion plate 16
The guide bin 30 that guides the movement of ゜17.18 and the unloading mechanism 31 that drops after the waste materials such as gate G and runner 1 are conveyed to a predetermined position 'C'' are transparent to each other as described above. This guide bin 3o is opened at the above-mentioned IFII, the second and third extrusion plates 16, 17, and 18, respectively!: Passage 16C
, 17C, 18C are inserted through the through holes 16C, 17G, 18C, and the extrusion plates 16, 17.
Push the oil groove to the right to make it easier to slide the button 3.
The 2nd prize is crowned. The unloading mechanism 31 includes a one-direction bin 26 similar to the one described above.
is attached to the third extrusion plate 18 (although it is obvious that the mounting end of the third extrusion plate 18 is connected to the flange part 33 and the third extrusion plate 18).
A coil spring 34 is inserted between the
The end of the projector bin 26 is opened in the third extrusion plate 18 and protrudes to the outside through the through hole 35. An extrusion link 36 is supported by a bottle 37 at a position immediately adjacent to this through hole 35, and this third extrusion plate 18 is advanced a predetermined distance and attached to the spacer 6.
Jl: When one end of this extruded link 36 comes into contact with the J-shaped protrusion 38, the extruded link 36 is tilted and
It is configured to press the rear end of the handle pin 26. Next, the action will be explained. As shown in Fig. 6, after the Adai book 1 Ho 2 is brought into contact with the -1 Yabiti main body 1 and the mold is clamped, a pressing force against the Adai main body 1 is applied to the sliding door. The molten resin from the spool 11 reaches the gate block 14.
The resin formed between the J adapter and the main body 2 is passed through the run J-R and the goo 1-0 (filled into the product molding section 3). After the injection process is completed, the resin is cooled and the resin is cooled. F
t, untie the lc press 1 horns that have been added to the knee 1 adai body 2, and place the adai body 2 into the first adai body 2. Second and third extrusion plate 1
6. .. 17. At the same time as 18, move the main body from the main body of the main body. As a result, the resin product W is moved from the main body of the main body 1 with the knee 1 and the main body 2. After that, move the drive rod 19] 2, the extrusion bottle 21 extrudes the resin product W as shown in FIG. 1. '!L, but engaging pin 2
Since there is initially a predetermined gap between the No. 2 ring part 23 and the second extrusion plate 17, the goo block 14 is at the gate 0 until the 7 ring part 23 comes into contact with the second extrusion plate 17. The runner R is held between the die body 2 and the die body 2. I, two (, this goo 1- G na and retention and product W
1, the thin goo hG is cut out from the resin product W by the ejection of 1, and then the first extrusion plate 1G is driven.
When the work W is moved forward toward the core die main body, the workpiece W is ejected from the die J by the advancement of the extrusion bin 21, as shown in FIG. 5. The movable bottle 13 moves forward from the second extrusion temporary 17h2, and the gate G and ring R are no longer held by the goose I-, 71, 11 pins 14. Further drive 1-1 Tsudo 10
As it moves forward, it is taken up by the second extrusion plate 17. Take it to 18;
The proximal end is fixed to the extrusion plate 18, and a waste material support bin/IO having a recess 30 into which the waste material is fitted is simultaneously protruded from the other end. This protruding Nyorideba holding part 2 [k2, 13 (k 2, 13) (the waste material such as the gate G that was not held is pushed out from the core die main body 2. However, this waste material does not fall at this stage. One end of the extrusion ring 36 comes into contact with the position of the waste material shown by the solid line (J is moved, protrusion 3ε), and this extrusion ring 36 rotates around the bin 37, and the J-ji and L tubs are rotated. Push the rear end of 26. By this pressing, the scrap material supported by the scrap material support pin/IO is released from the convex-concave fitting, and -Zl 77 ties I
A 2.
It drops to 1. In this way, when taking out the resin product from the inside of the mold, the gate G and the lamp R't> Mr.
It becomes possible to remove it from C9j, and it becomes possible to continue C9j with a smooth opening and one-shot molding. Next (゛, 7-
By avoiding contact of the H77 tie body 2 with the via f die body 1, the next injection molding is started and the state is set to 1a. In addition, in addition to the film gate, it is also possible to use the Fungoo 1 as the Goo 1-G (7) type.Furthermore, in the illustrated embodiment, the However, it is possible to refer to the die body 2 as the stationary mold.If the present invention is applied as described in 2 above, the relative approach between the elm pihui body and this For injection molding, a product molding part is formed between the adai main body and the product molding part is filled with molten resin injected from a spool provided on the kitobity tie main body. For those who are in the mold J3 and form a thin-walled and wide XJ method goo i~ between the core die body and the core die body:1. The core die body is supported by a bottle passing through the main body, and a driving means for moving the gate in the approaching and separating direction is connected to the bottle, so that the resin product is removed from the mold after resin molding. (Sometimes, it is possible to cut out the gate from the product, and it is unnecessary to remove the gate by hand or with a breather, as opposed to the conventional method.) 11. It is possible to significantly improve the work efficiency of injection molding while improving the sharpness of the molded product.

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

第1図は射出により成y(された樹脂製品の′−例を示
°す斜視図、第2図は本発明の一実施例りに係る射出成
型金型を示づ断面図、第33・〜jう図は1「11実施
例の成へ1(−1稈を承り断面図、第(5図は本発明の
他の実施例矛に係る射出成型用金型を示づ断面図、第7
へ10図は同実施例の成ヘリニL稈を承り断面図である
1゜ Gグー1へ、 1く・・・ランプ、 W・・・樹脂製品
、1・・・キI7ビテrタイ本体、 2・・・」〕7ダ
イ本体、3・・・製品成形部、 11・・・スプール、
13・・・移動ビン、 14・・・グー[・ブ[Jツク
、16.17.1E)・・・押出板、 19・・・作動
11ツト、22.24・・・1系合ビン、。 特許出願人     日産自動車株式会着第1図 第4図
Fig. 1 is a perspective view showing an example of a resin product produced by injection; Fig. 2 is a sectional view showing an injection mold according to an embodiment of the present invention; Figures 1 to 11 are a cross-sectional view of an injection mold according to another embodiment of the present invention; 7
Figure 10 is a cross-sectional view of the L culm of the same example. 2..."] 7 die body, 3... product forming section, 11... spool,
13...Moving bin, 14...Goo[・bu[Jtsuk, 16.17.1E)]...Extrusion plate, 19...Operation 11, 22.24...1 series combination bin, . Patent applicant: Nissan Motor Co., Ltd. Figure 1 Figure 4

Claims (1)

【特許請求の範囲】[Claims] キャビティタイ本体とこれに対して相対接近離反移動可
能なコノ7ダイ本体との間に製品成形部を形成し、n1
1記キ11ビティダイ本体に設番ノられたスプールから
射出される溶融状態の樹脂を前記製品成形部内に充填す
るようにした射出成形用金型において、前記コアダイ本
体との間て゛薄肉でかつ幅の長い刈払のグー1〜を形成
覆るとともにキシピティダイ本体に嵌合可能なゲート1
0ツクを、前記:コアダイ本体を貫通づるピンにより前
記」アダイ本体に支持し、このゲートブロックを前11
[!接近離反り向に移動づる駆1)+手段を前記ビンに
接続したことを特徴とする射出成形用金型。
A product forming part is formed between the cavity tie body and the Kono7 die body which can be moved toward and away from the cavity tie body, and n1
1.K11 In an injection mold in which the product molding part is filled with molten resin injected from a spool numbered on the bitty die body, there is a gap between the core die body and the core die body. A gate 1 that can be fitted to the main body of the xipity die while forming and covering the long mowing goose 1
The gate block is supported on the die body by a pin passing through the core die body, and this gate block is
[! An injection molding mold characterized in that a drive means (1) for moving toward and away from the bottle is connected to the bottle.
JP13787682A 1982-08-10 1982-08-10 Mold for injection molding Pending JPS5929138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13787682A JPS5929138A (en) 1982-08-10 1982-08-10 Mold for injection molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13787682A JPS5929138A (en) 1982-08-10 1982-08-10 Mold for injection molding

Publications (1)

Publication Number Publication Date
JPS5929138A true JPS5929138A (en) 1984-02-16

Family

ID=15208756

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13787682A Pending JPS5929138A (en) 1982-08-10 1982-08-10 Mold for injection molding

Country Status (1)

Country Link
JP (1) JPS5929138A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02117123U (en) * 1989-03-08 1990-09-19

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02117123U (en) * 1989-03-08 1990-09-19
JPH0540987Y2 (en) * 1989-03-08 1993-10-18

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