JP3450127B2 - Method and apparatus for foaming release agent - Google Patents
Method and apparatus for foaming release agentInfo
- Publication number
- JP3450127B2 JP3450127B2 JP21643496A JP21643496A JP3450127B2 JP 3450127 B2 JP3450127 B2 JP 3450127B2 JP 21643496 A JP21643496 A JP 21643496A JP 21643496 A JP21643496 A JP 21643496A JP 3450127 B2 JP3450127 B2 JP 3450127B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- release agent
- liquid
- mesh
- foaming
- 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.)
- Expired - Lifetime
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、金型の製品成形面
に塗布される離型剤を金型内製品成形用空間（キャビテ
ィ）に供給する前に泡状化させる離型剤の発泡方法およ
び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of foaming a release agent applied to the product molding surface of a mold before it is foamed before being supplied to a space (cavity) for molding a product in the mold. And equipment.
【０００２】[0002]
【従来の技術】ダイカスト等の金型鋳造法では、鋳造製
品を金型から離型しやすくするために、溶湯をキャビテ
ィに供給する前に金型の製品成形面（キャビティ面）に
離型剤を塗布する。従来の離型剤塗布は、金型から製品
を取り出した後、開状態にある金型の間に（固定金型と
可動金型との間に）スプレー装置を挿入し、液状離型剤
を金型製品成形面にスプレー塗布することにより行って
いる。また、スプレー塗布には、スプレーした離型剤が
飛散し作業環境を悪化させること、型合わせ面に離型剤
が付着して金型合わせ精度が悪化すること、離型剤を金
型製品成形面に均一に塗布することが難しいこと、スプ
レーした離型剤のうち金型製品成形面に付着しなかった
離型剤が無駄になること、などの問題があるため、至近
時、型締めした状態で離型剤を泡状化して金型キャビテ
ィに供給しキャビティ面に塗布する方法が開発されよう
としている。しかし、それには、液離型剤を効率よく泡
状化させる方法および装置の開発が必要となる。液離型
剤の泡状化に用いることを目的としたものではないが、
従来、特開平５２４５４１４号公報は、化学剤混合液を
ノズルから噴出させ、その噴出粒子に空気を随伴混合さ
せて化学剤混合液の粒子と空気との混合物を作り、この
混合物をメッシュに高速で衝突させ、泡状化させる装置
を開示している。2. Description of the Related Art In a die casting method such as die casting, a mold release agent is applied to a product molding surface (cavity surface) of a mold before supplying molten metal to a cavity in order to facilitate the mold release of a cast product. Apply. Conventional mold release agent application involves removing the product from the mold and then inserting a spray device between the molds in the open state (between the fixed mold and the movable mold) to remove the liquid mold release agent. This is done by spray coating the molding surface of the mold product. In spray coating, the sprayed release agent scatters to deteriorate the working environment, the mold release agent adheres to the mold matching surface to deteriorate the mold alignment accuracy, and the release agent is molded into a mold product. Since it is difficult to apply it evenly to the surface, and of the sprayed mold release agent, the mold release agent that did not adhere to the molding surface of the mold product is wasted. In this state, a method of foaming the mold release agent, supplying it to the mold cavity, and applying it to the cavity surface is being developed. However, this requires development of a method and a device for efficiently foaming the liquid release agent. Although not intended to be used for foaming a liquid release agent,
Conventionally, JP-A-5245414 discloses that a chemical agent mixed liquid is ejected from a nozzle, and the ejected particles are admixed with air to form a mixture of particles of the chemical agent mixed liquid and air, and the mixture is rapidly applied to a mesh. A collision and foaming device is disclosed.
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来の泡状化
装置を離型剤の泡状化に用いるとつぎの問題がある。
金型キャビティは背圧が高くなるため、大気放出が
前提の、従来の、空気を随伴混合させる泡状化方法を適
用することができない。これは、背圧によって空気の随
伴がなくなり、液体だけがメッシュを通過して、液離型
剤が泡状化しなくなるからである。
噴射された液へまわりの空気を巻き込む従来の液と
空気の混合においては、巻きこまれる空気の量は液の速
度によって左右され、噴射速度を上げることができなけ
れば空気巻き込み量の上限値が制限されてしまう。ま
た、液の噴射速度を高め過ぎると液だけがメッシュを素
通りしてしまい発泡しない。したがって、発泡状態の調
整幅が非常に狭いものになってしまい、最大発泡点での
発泡は実現困難である。本発明の目的は、背圧のある空
間（たとえば、金型キャビティ）にも泡状化して離型剤
を供給でき、かつ泡性状の調整も容易な、離型剤の発泡
方法および装置を提供することにある。However, when the conventional foaming device is used for foaming the release agent, the following problems occur. Since the mold cavity has a high back pressure, it is not possible to apply the conventional foaming method of entraining and mixing air, which is premised on atmospheric release. This is because the back pressure eliminates entrainment of air and only the liquid passes through the mesh, and the liquid release agent does not foam. In conventional mixing of liquid and air, which entrains the surrounding air into the jetted liquid, the amount of air entrained depends on the velocity of the liquid, and if the jetting speed cannot be increased, the upper limit of the air entrainment amount is limited. Will be done. Further, if the jet speed of the liquid is too high, only the liquid passes through the mesh and does not foam. Therefore, the adjustment range of the foaming state becomes very narrow, and it is difficult to achieve foaming at the maximum foaming point. An object of the present invention is to provide a method and a device for foaming a release agent, which can foam the release agent into a space having a back pressure (for example, a mold cavity) and supply the release agent, and can easily adjust the foam property. To do.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成する本発
明は、つぎの通りである。
（１） 液離型剤を泡状化して泡離型剤にする離型剤の
発泡方法において、液離型剤をエアと混合させずにメッ
シュに噴出してメッシュに液膜を形成し、該液膜に圧縮
エア源からのエアを吹きつけ該吹き付けたエアで前記液
膜を押し前記液膜を該吹き付けたエアをつつみみ込むよ
うに変形させて泡を形成し離型剤を泡状化させる、こと
を特徴とする離型剤の発泡方法。
（２） 液離型剤を泡状化して泡離型剤にする離型剤の
発泡装置において、メッシュと、液離型剤をエアと混合
させずに前記メッシュに向けて噴出する噴液ノズルと、
前記噴液ノズルの液離型剤噴出端よりもエア流れ方向上
流側に位置するエア噴出端を有し前記噴液ノズルのまわ
りに配置された、圧縮エア源からのエアをメッシュに吹
きつけるエアノズルと、を有することを特徴とする離型
剤の発泡装置。The present invention which achieves the above object is as follows. (1) message EkiHanare agent to the foaming process of the release agent to AwaHanare agent in the form of foam, without mixing with air the liquid release agent
Forming a liquid film on the mesh erupted shoe, the liquid in the air blown said blown air from compressed air source to the liquid film
Press the membrane and envelop the air blowing the liquid membrane.
A foaming method of a release agent, characterized in that the foam is deformed to form bubbles to make the release agent foamy. (2) mixed in EkiHanare agent foaming apparatus of the release agent to AwaHanare agent in the form of foam, and a mesh, the liquid release agent to the air
A jet nozzle that sprays toward the mesh without
Above the jet direction of the liquid release agent of the jet nozzle, in the air flow direction
A swirl of the jet nozzle having an air jet end located on the flow side.
And an air nozzle for spraying air from a compressed air source onto the mesh.
【０００５】上記本発明の方法および装置では、圧縮エ
アをエアノズルから噴出するので、背圧が高い空間にも
造泡して泡離型剤を供給できる。液、エアを独立に噴出
調整できるので、混合は任意に調整でき、泡性状の調整
幅が従来の随伴混合の調整幅に比べて大幅に大きくな
る。In the above-described method and apparatus of the present invention, since compressed air is ejected from the air nozzle, it is possible to form a foam into a space having a high back pressure and supply the foam release agent. Since the jetting of liquid and air can be adjusted independently, the mixing can be adjusted arbitrarily, and the adjustment width of the foam property is significantly larger than the adjustment width of the conventional admixture.
【０００６】[0006]
【発明の実施の形態】以下に、本発明の実施例を説明す
る。図１、図２は本発明実施例の方法を実施する装置を
示しており、図３は図１の実施例においてメッシュを複
数設けた場合を示しており、図４は本発明実施例の方法
における発泡の原理を示しており、図５は発泡率とメッ
シュでのエア速度との関係を示し、図６は発泡率とエア
量との関係を示している。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. 1 and 2 show an apparatus for carrying out the method of the embodiment of the present invention, FIG. 3 shows a case where a plurality of meshes are provided in the embodiment of FIG. 1, and FIG. 4 shows a method of the embodiment of the present invention. 5 shows the principle of foaming, FIG. 5 shows the relationship between the foaming rate and the air velocity in the mesh, and FIG. 6 shows the relationship between the foaming rate and the air amount.
【０００７】本発明実施例の離型剤の発泡装置は、液離
型剤を泡状化して泡離型剤にする離型剤の発泡装置であ
って、図１、図２に示すように、メッシュ１と、メッシ
ュ１に向けて液離型剤２を噴出する噴液ノズル３と、噴
液ノズル３の後方から圧縮エア源からのエア４をメッシ
ュ１に吹きつけるエアノズル５と、を有する。メッシュ
１は、図１、図２のように単一のメッシュから構成され
ていてもよく、また図３に示すように複数のメッシュを
互いに間隔をおいてエア流れ方向に並べたものから構成
されていてもよい。The mold releasing agent foaming device of the embodiment of the present invention is a mold releasing agent foaming device for foaming a liquid mold releasing agent to form a foam mold releasing agent. As shown in FIGS. , A mesh 1, a spray nozzle 3 for spraying the liquid release agent 2 toward the mesh 1, and an air nozzle 5 for spraying air 4 from a compressed air source onto the mesh 1 from behind the spray nozzle 3. . The mesh 1 may be composed of a single mesh as shown in FIGS. 1 and 2, or may be composed of a plurality of meshes arranged in the air flow direction at intervals as shown in FIG. May be.
【０００８】発泡装置は、発泡筒６を有している。メッ
シュ１は発泡筒６内に支持されて発泡筒横断面方向に延
びている。メッシュ１の目の粗さはＪＩＳ＃４０〜＃４
００が望ましい。噴液ノズル３は発泡筒６内にメッシュ
１の上流（離型剤流れ方向上流）に配置されており、メ
ッシュ１と間隔をおいてかつメッシュ１に対向させて配
置されている。噴液ノズル３は発泡筒６の軸芯上に配置
されている。噴液ノズル３には離型剤タンクから液離型
剤２がポンプ７にて圧送される。噴液ノズル３から噴射
される液離型剤２の噴射パターンは、充円錐状に下流ほ
ど拡がってメッシュ１のノズル３に対向する面に液を吹
きかけるように設定されており、メッシュ１とノズル３
は、ノズル３からの噴射液がメッシュ１の全面に当たる
ような位置関係で固定されている。噴液ノズル３の噴液
圧は１ｋｇ／ｃｍ2 〜１０ｋｇ／ｃｍ2 程度であること
が望ましい。エアノズル５のエア噴出端は噴液ノズル３
の液離型剤噴出端よりも上流（エア流れ方向上流）に位
置している。エアノズル５は噴液ノズル３のまわりに配
置され、エアをメッシュ１に向けて吹き出す。エアノズ
ル５は、メッシュ１部でのエア速度分布ができるだけ均
一になるように、同心円上に複数配置されることがんぞ
ましく、図２では、たとえば４個等間隔に配置された場
合が示されている。エアノズル５は圧縮エア源８（たと
えば、エアポンプ）に接続されているので、エアノズル
５のエア噴出端より上流のエア通路内では、エアは圧力
をもつ。泡生成のエアに圧縮エアを用いるので、背圧が
高い空間、たとえば金型キャビティにも、その空間の圧
力が圧縮エア源８の圧力より低いかぎり、泡離型剤を供
給することができる。The foaming device has a foaming cylinder 6. The mesh 1 is supported in the foam cylinder 6 and extends in the cross-sectional direction of the foam cylinder. The roughness of the mesh 1 is JIS # 40 to # 4
00 is desirable. The jet nozzle 3 is arranged in the foaming cylinder 6 upstream of the mesh 1 (upstream in the release agent flow direction), and is arranged at a distance from and facing the mesh 1. The jet nozzle 3 is arranged on the axis of the foam cylinder 6. The liquid release agent 2 is pressure-fed by the pump 7 from the release agent tank to the jet liquid nozzle 3. The spray pattern of the liquid release agent 2 sprayed from the spray liquid nozzle 3 is set so as to spread downstream in a full cone shape and spray the liquid on the surface of the mesh 1 facing the nozzle 3. Three
Are fixed in such a positional relationship that the liquid ejected from the nozzle 3 hits the entire surface of the mesh 1. It is desirable liquid jetting pressure liquid jetting nozzle 3 is 1kg / cm 2 ~10kg / cm 2 approximately. The air jet end of the air nozzle 5 is the jet nozzle 3
Is located upstream (upstream in the air flow direction) of the liquid release agent ejection end. The air nozzle 5 is arranged around the jet nozzle 3, and blows air toward the mesh 1. It is desirable that a plurality of air nozzles 5 are arranged on concentric circles so that the air velocity distribution in the mesh 1 part is as uniform as possible. In FIG. 2, for example, four air nozzles are arranged at equal intervals. Has been done. Since the air nozzle 5 is connected to the compressed air source 8 (for example, an air pump), the air has a pressure in the air passage upstream of the air ejection end of the air nozzle 5. Since compressed air is used as the air for generating bubbles, the foam release agent can be supplied to a space having a high back pressure, for example, a mold cavity as long as the pressure in the space is lower than the pressure of the compressed air source 8.
【０００９】メッシュ１における発泡原理は、図４に示
すしゃぼん玉生成と同じであると考えられる。すなわ
ち、噴液ノズル３から噴射される液離型剤２がメッシュ
１に吹きかけられたとき、メッシュ１の多数の小開口の
各開口には液離型剤２の薄い液膜９が形成される。エア
ノズル５から噴出されたエア４はこの薄い液膜９を押
し、液膜９はエア４をつつみ込むように変形していき、
遂には完全にエア４をつつみ込んで泡離型剤１０となっ
て、メッシュ１から離れ、下流へと流れていく。したが
って、従来の泡形成のように泡形成前に液とエアを混合
してそれをメッシュに高速で衝突させるのではなく、本
発明では、液をエアとは別にしておいて混合せずにメッ
シュ１に液膜を形成しそれをエアで押して変形させて泡
を形成する。エアは圧縮エア源からのエアを用いるの
で、液膜９を押してエアをつつみ込むように変形させる
力を有する。噴液ノズル３からの液離型剤２の噴出とエ
アノズル５からのエア４の噴出は、間欠的噴出を交互に
繰返し行うものであってもよいし、連続的であってもよ
い。図１で１０は泡離型剤を示す。The foaming principle of the mesh 1 is considered to be the same as that of the soap bubble production shown in FIG. That is, when the liquid release agent 2 sprayed from the jet nozzle 3 is sprayed on the mesh 1, a thin liquid film 9 of the liquid release agent 2 is formed in each of the small openings of the mesh 1. . The air 4 ejected from the air nozzle 5 pushes this thin liquid film 9, and the liquid film 9 is deformed so as to enclose the air 4.
Finally, the air 4 is completely entrapped to form the foam release agent 10, which is separated from the mesh 1 and flows downstream. Therefore, rather than mixing the liquid and air before foam formation and colliding it with the mesh at high speed as in conventional foam formation, in the present invention, the liquid is separated from the air and not mixed. A liquid film is formed on the mesh 1 and pushed by air to be deformed to form bubbles. Since air from the compressed air source is used as the air, it has a force that pushes the liquid film 9 and deforms the air so as to entrap it. The ejection of the liquid release agent 2 from the ejection liquid nozzle 3 and the ejection of the air 4 from the air nozzle 5 may be such that intermittent ejection is alternately repeated or continuous. In FIG. 1, 10 indicates a foam release agent.
【００１０】上記装置を用いて実行される本発明実施例
の離型剤の発泡方法は、液離型剤２を泡状化して泡離型
剤１０にする離型剤の発泡方法であって、メッシュ１に
液離型剤２を噴出してメッシュ１に液膜９を形成する工
程と、液膜９に圧縮エア源８からのエア４を吹きつけて
離型剤を泡状化させ泡離型剤１０を生成する工程と、か
らなる。The method for foaming a mold release agent of the present invention, which is carried out using the above apparatus, is a method for foaming a mold release agent by foaming the liquid mold release agent 2 into a foam mold release agent 10. A step of ejecting the liquid release agent 2 onto the mesh 1 to form a liquid film 9 on the mesh 1 and blowing air 4 from a compressed air source 8 onto the liquid film 9 to foam the release agent And a step of producing the release agent 10.
【００１１】泡性状（発泡率、泡の大きさ、などを含
む）は、圧縮エア源８の圧力、流量をエアポンプ８（エ
ア源８と同じ）を調整すると共に、液離型剤２の流量を
ポンプ７を調整することにより、調整することができ
る。とくに、発泡率（＝発生泡量／使用液量）は、図５
に示すように、メッシュのエア通過速度によって決ま
り、メッシュでのエア速度がある速度までは、メッシュ
のエア通過速度の増大とともに発泡率も増加するが、メ
ッシュでのエア速度がある速度を超えると、泡が崩壊し
てしまってエアだけがメッシュを素通りし、発泡率は下
がる。また、発泡率は、図６に示すように、エア量によ
って左右され、発泡率を最大にするエア量が存在し、そ
れよりエア量が少ないと発泡が不完全になり（図６の不
完全状態参照）、それよりエア量が多いとエア抜け状態
になって泡粒径も小さくなる（図６のエア抜け状態参
照）。本発明方法では、エア流速およびエア量は、最適
な発泡、すなわち最大発泡率でかつ完全状態の泡（図の
完全状態参照）が生成されるように決定される。そし
て、それは圧縮エア源８の圧力、流量をエアポンプ８
（エア源８と同じ）を無段階に調整する（ポンプの吐出
圧、吐出量、その下流のバルブ）ことで、発泡率を自由
に調整でき、最適な発泡を達成できる。The foam properties (including foaming rate, bubble size, etc.) are adjusted by adjusting the pressure and flow rate of the compressed air source 8 by the air pump 8 (same as the air source 8) and the flow rate of the liquid release agent 2. Can be adjusted by adjusting the pump 7. In particular, the foaming rate (= generated foam amount / used liquid amount) is shown in FIG.
As shown in, the air passage speed of the mesh determines, and up to a certain speed of air in the mesh, the foaming rate increases as the air passage speed of the mesh increases, but when the air speed of the mesh exceeds a certain speed. , The bubbles collapse and only air passes through the mesh, and the foaming rate decreases. As shown in FIG. 6, the foaming rate depends on the air volume, and there is an air volume that maximizes the foaming rate. If the air volume is smaller than that, the foaming will be incomplete ( (Refer to the state), and if the air amount is larger than that, the air is released and the bubble particle size is also reduced (see the air released state in FIG. 6). In the method of the present invention, the air flow rate and the air amount are determined so as to generate optimum foaming, that is, foam with the maximum foaming rate and in a perfect state (see perfect state in the figure). Then, it changes the pressure and flow rate of the compressed air source 8 into the air pump 8.
By continuously adjusting (the same as the air source 8) (the discharge pressure of the pump, the discharge amount, and the valve downstream thereof), the foaming rate can be freely adjusted, and optimum foaming can be achieved.
【００１２】本発明実施例では、エアと液との混合比率
を所定のほぼ一定値に調整することにより、発泡性状を
最適な発泡率に設定し、液／エア比がほぼ一定の、泡の
大きさがそろった安定した泡状離型剤６を作り出すこと
ができ、この安定生成された泡状離型剤を、途中の給送
管内で泡がつぶれることなく、金型キャビティに安定供
給することによって、キャビティ面全面に離型剤を均一
厚みで安定的に塗布することができ、鋳造製品の品質を
安定化させることに寄与することができる。In the embodiment of the present invention, by adjusting the mixing ratio of air and liquid to a predetermined substantially constant value, the foaming property is set to the optimum foaming ratio, and the liquid / air ratio is substantially constant. It is possible to produce a stable foamy mold release agent 6 of uniform size, and stably supply this foamy mold release agent to the mold cavity without bubbles being collapsed in the feeding pipe in the middle. As a result, the mold release agent can be stably applied to the entire surface of the cavity with a uniform thickness, which can contribute to stabilizing the quality of the cast product.
【００１３】また、発泡装置への、エアの供給と、液離
型剤の供給とを、リアルタイムに調整でき、金型への泡
離型剤の供給装置として用いる場合、鋳造製品側の要求
に従ってリアルタイムのコントロールをすることも可能
になる。また、従来の発泡装置は通常、メッシュの下流
部に泡の安定化をはかるために最小５ｍの安定化部を設
ける必要があったが、本発明方法では、供給側とメッシ
ュ部とですでに安定した泡の生成が可能であるために、
メッシュの下流部に泡安定化部を設ける必要がなく、発
泡装置のコンパクト化がはかれ、このコンパクト化によ
って発泡装置の金型装置への組み込みも可能となる。Further, the supply of air and the supply of the liquid release agent to the foaming device can be adjusted in real time, and when used as a device for supplying the foam release agent to the mold, according to the requirements of the casting product side. It also enables real-time control. Further, in the conventional foaming apparatus, it was usually necessary to provide a stabilizing portion of at least 5 m in the downstream portion of the mesh in order to stabilize the bubbles. Because it is possible to generate a stable foam,
Since it is not necessary to provide a foam stabilizing portion in the downstream portion of the mesh, the foaming device can be made compact, and this compactification enables the foaming device to be incorporated in the mold device.
【００１４】なお、液離型剤２は、発泡剤、たとえば
脂肪酸塩（たとえば、ラウリン酸ナトリウム、ステアリ
ン酸ナトリウムなど）を混入させる、界面活性剤（ノ
ニオン系界面活性剤、たとえばポリオキシエチレンアル
キエーテル）を混入させる、重炭酸ソーダの粉末とエ
アを混合し離型剤液と反応させる、高圧炭酸ガスを離
型剤液に吹き込む、離型剤に揮発性アルコールをもつ
発泡剤を圧入する、二酸化炭素を離型剤液に低温で含
有させておく、などにより、起泡を容易にしておくこと
が望ましい。The liquid release agent 2 is a surfactant (nonionic surfactant such as polyoxyethylene alkether) into which a foaming agent such as a fatty acid salt (eg sodium laurate, sodium stearate, etc.) is mixed. ), Mix sodium bicarbonate powder and air to react with the release agent solution, blow high-pressure carbon dioxide gas into the release agent solution, press the blowing agent with volatile alcohol into the release agent, and remove carbon dioxide. It is desirable to facilitate foaming by, for example, containing the release agent liquid at a low temperature.
【００１５】[0015]
【発明の効果】請求項１の方法によれば、メッシュに液
離型剤を噴出してメッシュに液膜を形成し、この液膜に
圧縮エア源からのエアを吹きつけて離型剤を泡状化させ
るので、圧縮エア圧を利用して背圧のある空間（たとえ
ば、金型キャビティ）にも泡状化して離型剤を供給で
き、かつメッシュへの液離型剤とエアとの供給を調整す
ることにより泡性状を容易に調整することができる。請
求項２の装置によれば、メッシュと、このメッシュに向
けて液離型剤を噴出する噴液ノズルと、圧縮エア源から
のエアをメッシュに吹きつけるエアノズルと、を有する
ので、圧縮エア圧を利用して背圧のある空間（たとえ
ば、金型キャビティ）にも泡状化して離型剤を供給で
き、かつメッシュへの液離型剤とエアとの供給を調整す
ることにより泡性状を容易に調整することができる。According to the method of claim 1, a liquid release agent is jetted onto the mesh to form a liquid film on the mesh, and air from a compressed air source is blown onto the liquid film to remove the release agent. Since it is foamed, the compressed air pressure can be used to foam into a space with a back pressure (for example, a mold cavity) to supply the mold release agent, and the liquid mold release agent and air to the mesh The foam properties can be easily adjusted by adjusting the supply. According to the apparatus of claim 2, the mesh, the jet nozzle for ejecting the liquid release agent toward the mesh, and the air nozzle for blowing air from the compressed air source onto the mesh are used. Can be used to supply the mold release agent by foaming into a space with back pressure (for example, mold cavity), and by adjusting the supply of the liquid mold release agent and air to the mesh, the foam property can be changed. It can be easily adjusted.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の一実施例に係る離型剤の発泡方法を実
施する装置の概略断面図である。FIG. 1 is a schematic sectional view of an apparatus for carrying out a method for foaming a release agent according to an embodiment of the present invention.
【図２】図１の装置のＡ−Ａ線に沿う断面図である。2 is a cross-sectional view of the device of FIG. 1 taken along the line AA.
【図３】本発明のもう一つの実施例に係る、複数のメッ
シュを有する、離型剤の発泡方法を実施する装置の概略
断面図である。FIG. 3 is a schematic cross-sectional view of an apparatus for carrying out a method for foaming a release agent having a plurality of meshes according to another embodiment of the present invention.
【図４】本発明における発泡の原理を示すメッシュの一
つの孔近傍の側面図である。FIG. 4 is a side view in the vicinity of one hole of a mesh showing the principle of foaming in the present invention.
【図５】本発明における発泡率とメッシュでのエア速度
との関係を示すグラフである。FIG. 5 is a graph showing the relationship between the foaming rate and the air velocity in a mesh according to the present invention.
【図６】本発明における発泡率とエア量との関係を示す
グラフである。FIG. 6 is a graph showing the relationship between the foaming rate and the amount of air in the present invention.
１ メッシュ ２ 液離型剤 ３ 噴液ノズル ４ エア ５ エアノズル ６ 発泡筒 ７ ポンプ ８ 圧縮エア源 １０ 泡離型剤 1 mesh 2 liquid release agent 3 Fountain nozzle 4 air 5 air nozzles 6 foam cylinder 7 pumps 8 Compressed air source 10 foam release agent
フロントページの続き (72)発明者 中島 雅夫 福岡県粕屋郡須恵町植木1321−10 リッ クス株式会社 技術開発センター内 (56)参考文献 特開 平９−103860（ＪＰ，Ａ) 特開 平９−122869（ＪＰ，Ａ) 特開 平９−108773（ＪＰ，Ａ) 特開 昭64−57943（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B29C 33/56 - 33/68 B22D 17/20 Front page continued (72) Inventor Masao Nakajima 1321-10 Ueki, Sue-machi, Kasuya-gun, Fukuoka Prefecture Rix Co., Ltd. Technology Development Center (56) Reference JP-A-9-103860 (JP, A) JP-A-9- 122869 (JP, A) JP 9-108773 (JP, A) JP 64-57943 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) B29C 33/56-33 / 68 B22D 17/20
Claims (2)
型剤の発泡方法において、液離型剤をエアと混合させず
にメッシュに噴出してメッシュに液膜を形成し、該液膜
に圧縮エア源からのエアを吹きつけ該吹き付けたエアで
前記液膜を押し前記液膜を該吹き付けたエアをつつみみ
込むように変形させて泡を形成し離型剤を泡状化させ
る、ことを特徴とする離型剤の発泡方法。The method according to claim 1] EkiHanare agent in the foaming process of the release agent to AwaHanare agent in the form of foam, not mixed with the air to liquid release agent
To a mesh to form a liquid film on the mesh, blow air from a compressed air source on the liquid film, and
Press the liquid film and envelop the air sprayed with the liquid film
A method for foaming a release agent, which comprises deforming the release agent to form bubbles to foam the release agent.
型剤の発泡装置において、メッシュと、液離型剤をエア
と混合させずに前記メッシュに向けて噴出する噴液ノズ
ルと、前記噴液ノズルの液離型剤噴出端よりもエア流れ
方向上流側に位置するエア噴出端を有し前記噴液ノズル
のまわりに配置された、圧縮エア源からのエアをメッシ
ュに吹きつけるエアノズルと、を有することを特徴とす
る離型剤の発泡装置。2. A method EkiHanare agent in the foaming apparatus of the release agent to AwaHanare agent in the form of foam, and a mesh, the liquid release agent Air
A jet of liquid ejecting toward the mesh without being mixed with the air, and an air flow from the ejection end of the liquid release agent of the jet of nozzle
The jet nozzle having an air jet end located on the upstream side in the direction of
An air nozzle for blowing air from a compressed air source onto the mesh, the foaming device for a release agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21643496A JP3450127B2 (en) | 1996-08-16 | 1996-08-16 | Method and apparatus for foaming release agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21643496A JP3450127B2 (en) | 1996-08-16 | 1996-08-16 | Method and apparatus for foaming release agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1058459A JPH1058459A (en) | 1998-03-03 |
| JP3450127B2 true JP3450127B2 (en) | 2003-09-22 |
Family
ID=16688497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21643496A Expired - Lifetime JP3450127B2 (en) | 1996-08-16 | 1996-08-16 | Method and apparatus for foaming release agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3450127B2 (en) |
-
1996
- 1996-08-16 JP JP21643496A patent/JP3450127B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1058459A (en) | 1998-03-03 |
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