JPH0726118U - Resin mold with cooling passage - Google Patents
Resin mold with cooling passageInfo
- Publication number
- JPH0726118U JPH0726118U JP6527592U JP6527592U JPH0726118U JP H0726118 U JPH0726118 U JP H0726118U JP 6527592 U JP6527592 U JP 6527592U JP 6527592 U JP6527592 U JP 6527592U JP H0726118 U JPH0726118 U JP H0726118U
- Authority
- JP
- Japan
- Prior art keywords
- mold
- cooling
- cooling passage
- resin
- cavity
- 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
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
(57)【要約】
【目的】 冷却通路を型構成体の端部にまで設けること
ができて、キャビティ内の樹脂の冷却を円滑にかつ均一
に行うことができる冷却通路を備えた樹脂成形金型を提
供することを目的とする。
【構成】 コア型２０の筒体２１の内面と嵌合体２２の
外周面とを接合することにより、上記筒体２１の冷却溝
２３からの冷却水の漏出を防止する。
(57) [Abstract] [Purpose] A resin molding die having a cooling passage which can provide a cooling passage even up to the end of a mold structure to smoothly and uniformly cool the resin in the cavity. Intended to provide a type. [Structure] By joining the inner surface of the cylindrical body 21 of the core mold 20 and the outer peripheral surface of the fitting body 22, leakage of cooling water from the cooling groove 23 of the cylindrical body 21 is prevented.
Description
【０００１】[0001]
本考案は、一対の型体間に形成されたキャビティ内に樹脂が注入され、かつこ のキャビティ内の樹脂を冷却する冷却通路が上記型体に形成されてなる冷却通路 を備えた樹脂成形金型に関する。 According to the present invention, a resin molding die is provided with a cooling passage in which a resin is injected into a cavity formed between a pair of mold bodies and a cooling passage for cooling the resin in the cavity is formed in the mold body. Regarding
【０００２】[0002]
従来、例えば、コップ状の成形品を成形する射出成形金型としては、図２に示 すように、互いに接近離間自在に設けられたキャビ型１とコア型２との間に、上 記成形品を成形するためのキャビティ３が形成され、上記コア型２が、筒体４と 、この筒体４の内部に嵌め込まれた嵌合体５とから構成され、かつ上記筒体４の 内面に螺旋状の冷却溝６が形成されると共に、この冷却溝６に連通する冷却路７ ，８が、上記嵌合体５及びコア受板９に形成されたものが知られている。なお、 図中符号１０は上記コア型２を装着するコア型板、１１は上記コア型２から成形 品１２を離型させるストリッパプレートをそれぞれ示している。 Conventionally, for example, as an injection molding die for molding a cup-shaped molded article, as shown in FIG. 2, the above-described molding is performed between a cavity mold 1 and a core mold 2 which are provided so as to be close to and away from each other. A cavity 3 for molding a product is formed, the core mold 2 is composed of a tubular body 4 and a fitting body 5 fitted inside the tubular body 4, and a spiral is formed on the inner surface of the tubular body 4. It is known that the cooling groove 6 is formed and cooling paths 7 and 8 communicating with the cooling groove 6 are formed in the fitting body 5 and the core receiving plate 9. In the figure, reference numeral 10 denotes a core mold plate on which the core mold 2 is mounted, and 11 denotes a stripper plate for releasing a molded product 12 from the core mold 2.
【０００３】[0003]
ところで、上記従来のコア型２にあっては、上記筒体４の冷却溝６と嵌合体５ の外面とで構成されている冷却通路に冷却水を流通させており、この冷却水が上 記コア型２の先端面から漏出するのを防止するために、上記筒体４と嵌合体５と の間の先端部にＯリング１３を装着する必要がある。しかしながら、このように Ｏリング１３を上記コア型２の先端部に装着した場合には、該Ｏリング１３を装 着する分だけ上記冷却通路をコア型２の先端面寄りに設けることができなくなる ため、コア型２の先端面部分の冷却が十分に行われにくく、従って、コア型２の 各部が均一に冷却されないという問題がある。 By the way, in the conventional core mold 2, the cooling water is circulated in the cooling passage constituted by the cooling groove 6 of the cylindrical body 4 and the outer surface of the fitting body 5, and this cooling water is mentioned above. In order to prevent the core mold 2 from leaking from the tip end surface, it is necessary to attach an O-ring 13 to the tip end portion between the cylindrical body 4 and the fitting body 5. However, when the O-ring 13 is attached to the tip of the core die 2 as described above, the cooling passage cannot be provided near the tip of the core die 2 as much as the O-ring 13 is attached. Therefore, it is difficult to sufficiently cool the tip end surface portion of the core mold 2, and therefore, there is a problem that each part of the core mold 2 is not uniformly cooled.
【０００４】 本考案は、上記事情に鑑みてなされたもので、その目的とするところは、冷却 通路を型構成体の端部にまで設けることができて、キャビティ内の樹脂の冷却を 円滑にかつ均一に行うことができる冷却通路を備えた樹脂成形金型を提供するこ とにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cooling passage up to an end portion of a mold structure to smoothly cool resin in a cavity. Another object of the present invention is to provide a resin molding die having a cooling passage that can be uniformly performed.
【０００５】[0005]
上記目的を達成するために、本考案は、一対の型体間に形成されたキャビティ 内に樹脂が注入され、かつこのキャビティ内の樹脂を冷却する冷却通路が上記型 体に形成されてなる冷却通路を備えた樹脂成形金型において、上記冷却通路の壁 面が複数の型構成体で構成され、かつこれらの型構成体の対向面どうしが接合さ れたものである。 In order to achieve the above object, the present invention provides a cooling method in which a resin is injected into a cavity formed between a pair of mold bodies, and a cooling passage for cooling the resin in the cavity is formed in the mold body. In a resin molding die provided with a passage, the wall surface of the cooling passage is composed of a plurality of mold constituents, and the facing surfaces of these mold constituents are joined together.
【０００６】[0006]
本考案の冷却通路を備えた樹脂成形金型にあっては、冷却通路の壁面を構成す る複数の型構成体の対向面どうしを接合することにより、上記冷却通路からの流 体の漏出を防止する。 In the resin molding die having the cooling passage of the present invention, the fluid leakage from the cooling passage can be prevented by joining the facing surfaces of the plurality of mold constituents constituting the wall surface of the cooling passage. To prevent.
【０００７】[0007]
以下、図１に基づいて本考案の一実施例を説明する。なお、本実施例において 、図２に示す上記従来例と同様の構成を有する部分については、同符号を付けて 説明を省略する。 An embodiment of the present invention will be described below with reference to FIG. In the present embodiment, parts having the same configurations as those of the above-described conventional example shown in FIG.
【０００８】 図１において符号２０はコア型であり、このコア型２０は、筒体２１と、この 筒体２１の内部に嵌め込まれた嵌合体２２とから構成され、かつ上記筒体２１の 内面に螺旋状に冷却溝２３が形成されると共に、上記筒体２１の内面と嵌合体２ ２の外周面との間の間隔が３０〜５０μに設定されており、これらの対向面どう しが銀ロウ、Ｎｉロウ等のロウ材により接合されている。ここで、上記筒体２１ と嵌合体２２との対向面間の間隔を３０〜５０μに設定した理由は、上記間隔が ３０μより小さいと、ロウ付け接合時に溶融したロウ材が円滑に上記対向面間に 侵入していかない一方、上記間隔が５０μを越えると、接合強度が低下して確実 に接合されないからである。In FIG. 1, reference numeral 20 is a core type, and the core type 20 is composed of a tubular body 21 and a fitting body 22 fitted inside the tubular body 21, and the inner surface of the tubular body 21. The cooling groove 23 is formed in a spiral shape on the inner surface of the cylindrical body 21, and the gap between the inner surface of the cylindrical body 21 and the outer peripheral surface of the fitting body 22 is set to 30 to 50 μm. It is joined by a brazing material such as brazing or Ni brazing. Here, the reason why the gap between the facing surfaces of the cylindrical body 21 and the fitting body 22 is set to 30 to 50 μ is that when the gap is smaller than 30 μ, the brazing material melted at the time of brazing and joining is smoothly carried out on the facing surface. This is because if the above-mentioned interval exceeds 50μ while the space does not enter the space, the bonding strength decreases and the bonding is not ensured.
【０００９】 上記コア型２０は、予め、中空状の筒体２１の内面に螺旋状の冷却溝２３を形 成する一方、上記筒体２１の内面に嵌め合う嵌合体２２を形成し、かつこの嵌合 体２２の内部に冷却路２４，２５を形成した後、これらの筒体２１と嵌合体２２ とを嵌め合わせた状態で、上記筒体２１の内面と嵌合体２２の外周面との間にロ ウ材を装入して、１１００℃で焼入れすると同時に、ロウ付け接合することによ り完成する。この場合、焼入れ時の熱により溶融したロウ材は、上記筒体２１と 嵌合体２２との対向面間に容易に侵入して、該対向面にいきわたるから、筒体２ １と嵌合体２２との対向面間が確実に接合される一方、上記冷却溝２３内には溶 融したロウ材がしみ出すことがなく、従って、冷却溝２３が円滑に形成され、か つ冷却溝２３と両冷却路２４，２５とが容易に連通される。The core mold 20 forms a spiral cooling groove 23 on the inner surface of a hollow cylindrical body 21 in advance, and forms a fitting body 22 that fits on the inner surface of the cylindrical body 21. After the cooling passages 24 and 25 are formed inside the fitting body 22, between the inner surface of the cylinder body 21 and the outer peripheral surface of the fitting body 22 in a state where the cooling body 24 and the fitting body 22 are fitted to each other. It is completed by charging the raw material into the steel, quenching at 1100 ° C, and at the same time brazing and joining. In this case, the brazing material melted by the heat at the time of quenching easily penetrates between the facing surfaces of the cylindrical body 21 and the fitting body 22 and spreads over the facing surface, so that the cylindrical body 21 and the fitting body 22 are While the facing surfaces of the above are reliably joined together, the molten brazing material does not exude into the cooling groove 23, so that the cooling groove 23 is formed smoothly and the cooling groove 23 and both cooling surfaces are cooled. The passages 24 and 25 are easily communicated with each other.
【００１０】 このようにして形成されたコア型２０を組み込んだ射出成形金型にあっては、 従来同様、型締完了後に、溶融樹脂をゲートからキャビティ３内に供給する。そ して、キャビティ３内に充填された樹脂が冷却固化した後に、型を開いてストリ ッパプレート１１によって、キャビティ３内の成形品１２を離型させる。この場 合、上記コア型２０は、筒体２１と嵌合体２２とがロウ付け接合されているから 、従来のようにＯリング１３を使用する必要がなく、その分冷却溝２３をコア型 ２０の先端部まで配設することができて、キャビティ３内の樹脂の冷却を円滑に かつ均一に行うことができる。In the injection molding die in which the core die 20 thus formed is incorporated, the molten resin is supplied from the gate into the cavity 3 after the completion of the die clamping as in the conventional case. Then, after the resin filled in the cavity 3 is cooled and solidified, the mold is opened and the molded product 12 in the cavity 3 is released from the mold by the stripper plate 11. In this case, in the core die 20, since the tubular body 21 and the fitting body 22 are brazed and joined together, it is not necessary to use the O-ring 13 as in the conventional case, and the cooling groove 23 is correspondingly formed in the core die 20. The resin can be smoothly and uniformly cooled in the cavity 3.
【００１１】[0011]
以上説明したように、本考案は、一対の型体間に形成されたキャビティ内に樹 脂が注入され、かつこのキャビティ内の樹脂を冷却する冷却通路が上記型体に形 成されてなる冷却通路を備えた樹脂成形金型において、上記冷却通路の壁面が複 数の型構成体で構成され、かつこれらの型構成体の対向面どうしが接合されたも のであるから、互いに接合された複数の型構成体の対向面どうしによって、冷却 通路からの流体の漏出を防止することにより、冷却通路を型構成体の端部にまで 設けることができて、キャビティ内の樹脂の冷却を円滑にかつ均一に行うことが できる。 As described above, according to the present invention, a resin is injected into a cavity formed between a pair of molds, and a cooling passage for cooling the resin in the cavity is formed in the mold. In the resin molding die having the passage, since the wall surface of the cooling passage is composed of a plurality of mold constituents, and the facing surfaces of these mold constituents are joined to each other, a plurality of the joined constituents are joined to each other. By preventing the fluid from leaking out from the cooling passage by the opposing surfaces of the mold constituting body, the cooling passage can be provided up to the end of the mold constituting body, so that the resin in the cavity can be smoothly cooled. It can be done uniformly.
【図１】本考案の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】従来の射出成形金型を示す断面図である。FIG. 2 is a cross-sectional view showing a conventional injection molding die.
１ キャビ型 ３ キャビティ ２０ コア型 ２１ 筒体 ２２ 嵌合体 ２３ 冷却溝 ２４・２５ 冷却路 1 Cavity Type 3 Cavity 20 Core Type 21 Cylindrical Body 22 Fitting Body 23 Cooling Groove 24/25 Cooling Path
Claims (1)
に樹脂が注入され、かつこのキャビティ内の樹脂を冷却
する冷却通路が上記型体に形成されてなる冷却通路を備
えた樹脂成形金型において、上記冷却通路の壁面が複数
の型構成体で構成され、かつこれらの型構成体の対向面
どうしが接合されたことを特徴とする冷却通路を備えた
樹脂成形金型。1. A resin molding die having a cooling passage in which a resin is injected into a cavity formed between a pair of mold bodies, and a cooling passage for cooling the resin in the cavity is formed in the mold body. In a mold, a resin molding die provided with a cooling passage, wherein a wall surface of the cooling passage is composed of a plurality of mold constituents, and facing surfaces of the mold constituents are joined to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6527592U JPH0726118U (en) | 1992-09-18 | 1992-09-18 | Resin mold with cooling passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6527592U JPH0726118U (en) | 1992-09-18 | 1992-09-18 | Resin mold with cooling passage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0726118U true JPH0726118U (en) | 1995-05-16 |
Family
ID=13282216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6527592U Pending JPH0726118U (en) | 1992-09-18 | 1992-09-18 | Resin mold with cooling passage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726118U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006030503A1 (en) * | 2004-09-15 | 2006-03-23 | Asahi Co., Ltd | Mold, method of manufacturing mold, block for forming heat exchange flow passage, and molded product |
| JP2008114402A (en) * | 2006-11-01 | 2008-05-22 | Sabic Innovative Plastics Japan Kk | Injection molding mold, method for producing injection molding mold, and molding method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5845017B2 (en) * | 1978-02-02 | 1983-10-06 | 富士写真フイルム株式会社 | Silver halide photographic material |
| JPS59164109A (en) * | 1983-03-09 | 1984-09-17 | Matsushita Electric Ind Co Ltd | Cooling circuit device of metallic die |
| JPS6371326A (en) * | 1986-09-12 | 1988-03-31 | Matsushita Electric Ind Co Ltd | Fastening device for optical insert divided into two parts |
| JPS6427919A (en) * | 1987-07-24 | 1989-01-30 | Mitsubishi Heavy Ind Ltd | Production of mold |
| JPH03244518A (en) * | 1990-02-23 | 1991-10-31 | Mitsubishi Heavy Ind Ltd | Mold |
-
1992
- 1992-09-18 JP JP6527592U patent/JPH0726118U/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5845017B2 (en) * | 1978-02-02 | 1983-10-06 | 富士写真フイルム株式会社 | Silver halide photographic material |
| JPS59164109A (en) * | 1983-03-09 | 1984-09-17 | Matsushita Electric Ind Co Ltd | Cooling circuit device of metallic die |
| JPS6371326A (en) * | 1986-09-12 | 1988-03-31 | Matsushita Electric Ind Co Ltd | Fastening device for optical insert divided into two parts |
| JPS6427919A (en) * | 1987-07-24 | 1989-01-30 | Mitsubishi Heavy Ind Ltd | Production of mold |
| JPH03244518A (en) * | 1990-02-23 | 1991-10-31 | Mitsubishi Heavy Ind Ltd | Mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006030503A1 (en) * | 2004-09-15 | 2006-03-23 | Asahi Co., Ltd | Mold, method of manufacturing mold, block for forming heat exchange flow passage, and molded product |
| JP2008114402A (en) * | 2006-11-01 | 2008-05-22 | Sabic Innovative Plastics Japan Kk | Injection molding mold, method for producing injection molding mold, and molding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19971111 |