JPS6164418A - Multistage metal mold device - Google Patents

Multistage metal mold device

Info

Publication number
JPS6164418A
JPS6164418A JP18714084A JP18714084A JPS6164418A JP S6164418 A JPS6164418 A JP S6164418A JP 18714084 A JP18714084 A JP 18714084A JP 18714084 A JP18714084 A JP 18714084A JP S6164418 A JPS6164418 A JP S6164418A
Authority
JP
Japan
Prior art keywords
manifold
mold
resin
slid
closing
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
JP18714084A
Other languages
Japanese (ja)
Inventor
Shuichi Abe
修一 阿部
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP18714084A priority Critical patent/JPS6164418A/en
Publication of JPS6164418A publication Critical patent/JPS6164418A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2758—Means for preventing drooling by decompression of the moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
    • B29C45/322—Runner systems for distributing the moulding material to the stacked mould cavities

Landscapes

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

Abstract

PURPOSE:To prevent leakage of resin, which is generated under the condition of mold opening, by a method wherein a manifold is slid by the closing and opening motions of the multistage metal mold to remove the remaining pressure of molten resin, which is generated in the metal mold. CONSTITUTION:Springs 17, 18 are reciprocated along stud bolts by the closing and opening motions of a mold and, whereby, the manifold heads 13, 14 are slid. The manifold head 13 of a central block A is contacted with the manifold 14 of a fixed block B under the condition of mold closing and, whereby, resin flowing path 11 is connected. Thus manifolds are separated under the condition of mold opening and the resin flowing path 11 is intercepted. The spring 17 of the central block A is restored and the manifold head 13 is slid forward. In the same manner, the spring 18 of the fixed block B is also restored and the manifold head 17 is slid forward. As a result, spaces C, D are produced in the resin flowing path of the manifold. Then, the molten resin, being compressed in the resin flow path, is moved into the spaces C, D and, thus, the remaining pressure may be removed.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は多段状金型装置に係り、特に多段状に配列され
ている金型において、金型内部に発生する残留圧を除去
することができる多段状金型装置に関する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a multi-stage mold device, and in particular, to a multi-stage mold arrangement, it is possible to remove residual pressure generated inside the mold. This article relates to a multi-stage mold device that can be used.

（従　　来　　技　　術） 一般に、マニホールドを内蔵した金型は、次のような工
程の成型法によっている。すなわら、■まず、射出成型
様によって樹脂が溶融され、金型に射出される。(Prior art) Generally, a mold with a built-in manifold is formed using the following process. That is, (1) First, resin is melted and injected into a mold using injection molding.

０次に、射出された溶ｐ＆４Ｍ脂は金型のマニホールド
によって溶融状態を維持しながら流動し、キャビティ部
に達する。Next, the injected molten P&4M resin flows while maintaining its molten state through the manifold of the mold, and reaches the cavity.

■そして、キャビティ部内で一定時間冷Ｗされた後、金
型が開いて成を品を得る。(2) After being cooled in the cavity for a certain period of time, the mold is opened to obtain a finished product.

第２図は従来のマニホールドを内蔵した多段状金型に樹
脂が溶融している状態を示す図である。FIG. 2 is a diagram showing a state in which resin is melted in a conventional multistage mold incorporating a manifold.

この状態ではマニホールドの樹脂流通路１とキャビティ
部２との間には射出圧力が保たれている。In this state, injection pressure is maintained between the resin flow path 1 and the cavity portion 2 of the manifold.

また、第３図は第２図の多段状金型が開いた状態を示す
図である。この状態では成型品３が取り出された後、マ
ニホールドの樹脂流通路１に射出圧力の一部が残留圧と
して残り、樹脂流通路１の入口である金型ノズル部４に
樹脂漏れ５が発生してしまうといった問題点があった。Moreover, FIG. 3 is a diagram showing the multistage mold shown in FIG. 2 in an open state. In this state, after the molded product 3 is taken out, a part of the injection pressure remains as residual pressure in the resin flow path 1 of the manifold, and resin leakage 5 occurs at the mold nozzle section 4, which is the entrance of the resin flow path 1. There was a problem with the problem.

（発明の目的） そこで、本発明の目的は上記した従来技術の問題点を解
決して、マニホールドを設けた多段状金型において樹脂
流通路の残留圧を除去するよう構成することにより、型
聞き状態で発生Ｊ−る樹脂漏れを防止した多段状金型装
置を提供することにある。(Object of the Invention) Therefore, the object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a structure in which the residual pressure in the resin flow path is removed in a multi-stage mold provided with a manifold, thereby eliminating the residual pressure in the resin flow path. It is an object of the present invention to provide a multistage mold device that prevents resin leakage that occurs in a state where the resin leakage is prevented.

（問題点を解決するための手段〉 本発明は上記の目的を達成するために、マニホールド部
を内蔵した多段状金型の中央ブロックと固定ブロックと
にそれぞれマニホールドヘッドをＬ２け、前記多段状金
型の型閉じ及びう゛）聞き動作により、前記マニホール
ドヘッドをスライドさせ、前記金型内部に発生する溶融
樹脂の残留圧を除去するよう構成したことを特徴とする
多段状金型装置を提供するものである。(Means for Solving the Problems) In order to achieve the above object, the present invention installs manifold heads L2 in each of the central block and fixed block of a multi-stage mold having a built-in manifold part. To provide a multi-stage mold device, characterized in that the manifold head is slid by the mold closing and tapping motions of the mold to remove the residual pressure of the molten resin generated inside the mold. It is.

（実　施　例） 本発明になる多段状金型装置の一実施例について、以下
に第１図及び第４図乃至第７図の図面と共に説明する。(Embodiment) An embodiment of the multistage mold device according to the present invention will be described below with reference to the drawings of FIG. 1 and FIGS. 4 to 7.

第１図は本発明になる多段状金型装置の一実施例の要部
である、マニホールド部分の樹脂流通路１１の周辺を示
す断面図である。FIG. 1 is a sectional view showing the vicinity of a resin flow path 11 in a manifold portion, which is a main part of an embodiment of a multistage mold apparatus according to the present invention.

同図において、中央ブロック△と固定ブロックＢとにそ
れぞれマニホールドヘッド１３．１４を設ける。さらに
、中央ブ［ｌツク△と固定ブロックＢにボルト１５．　
ＩＧを取り付け、スプリング１７．１８を設置する。In the figure, manifold heads 13 and 14 are provided in the central block Δ and the fixed block B, respectively. Furthermore, bolt 15.
Attach IG and install springs 17 and 18.

そして、型閉じ及び型聞きの動作により、立設されたボ
ルト１５．１６に沿ってスプリング１７．１８が往復動
をし、マニホールドヘッド１３．１４をスライドするよ
うにする。Then, by the mold closing and mold opening operations, the springs 17.18 reciprocate along the vertically installed bolts 15.16, causing the manifold head 13.14 to slide.

なお、スライド機構においては、スプリングの代わりに
エアー及びオイルを使用し、金をの開閉動作を電気的信
号により制御してエアーバルブ及びオイルバルブを作動
させ、マニホールドヘッドをスライドさせるよう構成し
ても良い。In addition, the slide mechanism may be constructed so that air and oil are used instead of springs, and the opening and closing operations of the metal valve are controlled by electrical signals to operate the air valve and oil valve, thereby causing the manifold head to slide. good.

第４図は型閉め状態を示す断面図である。同図において
、中央ブロックＡのマニホールドヘッド１３と固定ブロ
ックＢのマニホールドヘッド１４とが接触し、樹脂流通
路１１が連結する。FIG. 4 is a sectional view showing the mold closed state. In the figure, the manifold head 13 of the central block A and the manifold head 14 of the fixed block B are in contact with each other, and the resin flow passages 11 are connected.

第５図は連結された樹脂流通路を拡大して示す断面図で
ある。同図において、中央ブロックＡのスプリング１／
シよ圧縮されマニホールドヘッド１３を後方にスライド
させる。同様に、固定ブロックＢのスプリング１８も圧
縮し、マニホールドヘッド１４を後方にスライドさせる
。この状態で、射出成型礪１９により溶融樹脂を射出す
ると、溶融樹脂はマニホールドの樹脂流通路１１とキャ
ビティ部１２との間に射出圧力が加わり、樹脂が圧縮さ
れる。従って、キャビティ部１２を冷加すると、キャビ
ティ内の溶Ｆ！Ａ樹脂は固化するがマニホールドの樹脂
流通路１１における溶融樹脂は射出圧力の一部が残留圧
として残ってしまっている。FIG. 5 is an enlarged sectional view showing the connected resin flow passages. In the same figure, spring 1/of center block A
It is compressed and the manifold head 13 is slid rearward. Similarly, the spring 18 of the fixed block B is also compressed, causing the manifold head 14 to slide rearward. In this state, when the molten resin is injected by the injection molding chamber 19, injection pressure is applied to the molten resin between the resin flow path 11 of the manifold and the cavity portion 12, and the resin is compressed. Therefore, when the cavity part 12 is cooled, the melt F in the cavity! Although the resin A solidifies, a portion of the injection pressure remains as residual pressure in the molten resin in the resin flow path 11 of the manifold.

また、中央ブロックＡと固定ブロックＢのマニホールド
ヘッド１３．１４が亙いに単独になっているので、樹脂
流通路１１のセンターズレを生じる危険性がある。そこ
で、中央ブロックＡのマニホールドヘッド１３の先端を
Ｒ状の凹部２０にし、固定ブロックＢのマニホールドヘ
ッド１４の先端をＲ状の凸部２１にしてこの問題を解決
している。なお、凹部２０及び凸部２１は互いに凹凸が
逆になっていても良い。Furthermore, since the manifold heads 13 and 14 of the central block A and fixed block B are largely independent, there is a risk that the center of the resin flow path 11 may be shifted. Therefore, this problem is solved by making the tip of the manifold head 13 of the central block A an R-shaped recess 20 and making the tip of the manifold head 14 of the fixed block B an R-shaped protrusion 21. Note that the concave and convex portions of the concave portion 20 and the convex portion 21 may be reversed.

第６図は型聞き状態を示す断面図である。同図において
、中央ブロックへのマニホールドヘッド１３と固定ブロ
ックＢのマニホールドヘッド１４とが離れ、樹脂流通路
１１が遮断される。FIG. 6 is a sectional view showing the molded state. In the figure, the manifold head 13 to the central block and the manifold head 14 of the fixed block B are separated, and the resin flow path 11 is blocked.

第７図は遮断された樹脂流通路を拡大して示す断面図で
ある。同図において、中央ブロックＡのスプリング１７
は復元し、マニホールドヘッド１３を前方にスライドさ
ける。同様に、固定ブロックＢのスプリング１８も復元
し、マニホールドヘッド１７を前方にスライドさＵｏる
。FIG. 7 is an enlarged cross-sectional view showing the blocked resin flow path. In the same figure, the spring 17 of the central block A
is restored and the manifold head 13 is slid forward. Similarly, the spring 18 of the fixed block B is also restored, and the manifold head 17 is slid forward.

その結果、マニホールドヘッドのスライドにより、マニ
ホールドの樹脂流通路内に空間Ｃ，Ｄができる。そして
、樹脂流通路内に圧縮さ机でいた溶融樹脂がこの空間Ｃ
，Ｄに移動して、残留圧が除去される。As a result, the sliding of the manifold head creates spaces C and D within the resin flow path of the manifold. The molten resin that was compressed in the resin flow path is in this space C.
, D, the residual pressure is removed.

従って、型聞き状態で弁士する４３１脂漏れを防止する
ことができる。Therefore, it is possible to prevent leakage of the 431 fat that is caused by being a benshi while listening to patterns.

（発明の効果） 以上の如く、本発明の多段状金型装置によれば、マニホ
ールドを設けｌこ多段状金型において（テ１脂流通路の
残留圧を除去するよう構成して、型聞き状態で発生する
樹脂漏れを防止でさる等の特長をｈ゛する。(Effects of the Invention) As described above, according to the multi-stage mold device of the present invention, the manifold is provided in the multi-stage mold (1) and the mold is configured to remove the residual pressure in the fat flow passage. It has features such as preventing resin leakage that occurs under certain conditions.

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

第１図は本発明になる多段状金型装置の一実施例の要部
を示す断面図、第２図及び第３図は従来の多段状金型を
示す図、第４図乃至第７図は本発明になる多段状金型装
置の一実施例を承り図であり、第４図は型閉め状態を示
す断面図、第５図は連結された樹脂流通路を拡大して示
ず断面図、第６図は型聞き状態を示す断面図、第７図は
遮所された樹脂流通路を拡大して示す断面図である。 １１・・・樹脂流通路、１２・・・キャビティ部、１３
、１４・・・マニホールドヘッド、１５．　ＩＧ・・・
ボルト、１７、１８・・・スプリング、１つ・・・射出
成型は、２０・・・凹部、２１・・・凸部、Ａ・・・中
央ブロック、Ｂ・・・固定ブロック、Ｃ１Ｄ・・・空間
。 ；３Ｌ３；２ 才　２７ オ　３　日 ７４　聞FIG. 1 is a sectional view showing essential parts of an embodiment of a multi-stage mold device according to the present invention, FIGS. 2 and 3 are views showing a conventional multi-stage mold, and FIGS. 4 to 7 4 is a cross-sectional view showing an embodiment of the multi-stage mold device according to the present invention, FIG. 4 is a cross-sectional view showing the mold closed state, and FIG. , FIG. 6 is a sectional view showing the molded state, and FIG. 7 is an enlarged sectional view showing the blocked resin flow path. 11... Resin flow path, 12... Cavity part, 13
, 14... manifold head, 15. IG...
Bolts, 17, 18...Spring, 1...Injection molding, 20...Concave portion, 21...Convex portion, A...Central block, B...Fixing block, C1D... space. ;3L3;2 years old, 27 years old, 3 days, 74 years old

Claims (1)

【特許請求の範囲】[Claims] マニホールド部を内蔵した多段状金型の中央ブロックと
固定ブロックとにそれぞれマニホールドヘッドを設け、
前記多段状金型の型閉じ及び型間き動作により、前記マ
ニホールドヘッドをスライドさせ、前記金型内部に発生
する溶融樹脂の残留圧を除去するよう構成したことを特
徴とする多段状金型装置。A manifold head is provided in each of the central block and fixed block of a multistage mold with a built-in manifold part,
A multistage mold apparatus characterized in that the manifold head is slid by the mold closing and intermold opening operations of the multistage mold to remove residual pressure of molten resin generated inside the mold. .
JP18714084A 1984-09-06 1984-09-06 Multistage metal mold device Pending JPS6164418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18714084A JPS6164418A (en) 1984-09-06 1984-09-06 Multistage metal mold device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18714084A JPS6164418A (en) 1984-09-06 1984-09-06 Multistage metal mold device

Publications (1)

Publication Number Publication Date
JPS6164418A true JPS6164418A (en) 1986-04-02

Family

ID=16200818

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18714084A Pending JPS6164418A (en) 1984-09-06 1984-09-06 Multistage metal mold device

Country Status (1)

Country Link
JP (1) JPS6164418A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1017239C2 (en) * 2001-01-30 2002-07-31 Tooltech B V Multi level mold tool for an injection molding machine, has a hot runner connected to the central injection pipe via a channel extending through the mold section closure surface
JP2002544004A (en) * 1999-05-10 2002-12-24 モールド‐マスターズ、リミテッド Method and apparatus for branching melt in multi-stack mold
WO2007055746A1 (en) * 2005-11-12 2007-05-18 D-M-E Company Nozzle and apparatus for injection molding
WO2017017175A1 (en) * 2015-07-30 2017-02-02 Netstal-Maschinen Ag Injection-moulding machine with multi-daylight mould for injection-compression moulding applications and injection-compression moulding process
CN107443680A (en) * 2016-06-01 2017-12-08 柳道万和(苏州)热流道系统有限公司 Folded mould hot flow path adapted to injection system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002544004A (en) * 1999-05-10 2002-12-24 モールド‐マスターズ、リミテッド Method and apparatus for branching melt in multi-stack mold
NL1017239C2 (en) * 2001-01-30 2002-07-31 Tooltech B V Multi level mold tool for an injection molding machine, has a hot runner connected to the central injection pipe via a channel extending through the mold section closure surface
WO2007055746A1 (en) * 2005-11-12 2007-05-18 D-M-E Company Nozzle and apparatus for injection molding
WO2017017175A1 (en) * 2015-07-30 2017-02-02 Netstal-Maschinen Ag Injection-moulding machine with multi-daylight mould for injection-compression moulding applications and injection-compression moulding process
CN107443680A (en) * 2016-06-01 2017-12-08 柳道万和(苏州)热流道系统有限公司 Folded mould hot flow path adapted to injection system

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