JPS601101B2 - blowhead device - Google Patents
blowhead deviceInfo
- Publication number
- JPS601101B2 JPS601101B2 JP6918778A JP6918778A JPS601101B2 JP S601101 B2 JPS601101 B2 JP S601101B2 JP 6918778 A JP6918778 A JP 6918778A JP 6918778 A JP6918778 A JP 6918778A JP S601101 B2 JPS601101 B2 JP S601101B2
- Authority
- JP
- Japan
- Prior art keywords
- sand
- solvent
- introduction pipe
- blow head
- blowhead
- 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
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Casting Devices For Molds (AREA)
Description
【発明の詳細な説明】
この発明は常温急速硬化性の粘結剤を添加した鋳物砂を
模型内に吹込み急速硬化させて鋳型を造型する鋳型造型
機のブローヘッド装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a blow head device for a mold making machine that creates a mold by blowing molding sand added with a binder that rapidly hardens at room temperature into a model and rapidly hardens it.
近年種々の粘結剤を用いた鋳型造型法が開発されており
、その一例としてポリスチレン等の合成樹脂を被覆した
コーテツド砂にトリク０−ルェタン等の遠乾性油、揮発
性溶剤を加えまたはこれらに水ガラス等の無機粘結剤溶
液を加えて混練して銭枠または中子取に投入した後、こ
の錆枠または中子取り内を吸引負圧化させるかまたは空
気等を通じて溶媒を蒸発させて鋳型を急速硬化させる鋳
型の急速硬化法が開示されている。このように常温で混
練砂が急速硬化する鋳型の造型においてはコーテッド砂
と溶剤溶液の混練後溶媒が自然蒸発するためこの混線砂
の模型内への充填までの工程を短時間に行う必要がある
。この発明は上言己の点に鑑みなされたものであり、濠
練をブローヘッド内で短時間に行い、直ちに圧縮空気等
によりブローヘッド内の混練砂を模型内に吹込んで充填
するブローヘッド装置を提供するものである。In recent years, mold making methods using various binders have been developed. One example is coated sand coated with synthetic resin such as polystyrene, and adding a far-drying oil such as tric 0-ruethane or a volatile solvent, or to these. After adding an inorganic binder solution such as water glass, kneading it, and putting it into a coin frame or core tray, the inside of this rust frame or core tray is vacuumed to negative pressure, or the solvent is evaporated through air, etc. A method for rapidly curing a mold is disclosed. In this way, when making molds where the mixed sand hardens rapidly at room temperature, the solvent naturally evaporates after the coated sand and solvent solution are mixed, so the process up to filling the mixed sand into the model needs to be completed in a short time. . This invention was made in view of the above-mentioned points, and is a blow head device that performs moat mixing in a blow head in a short time, and immediately blows the kneaded sand in the blow head into a model using compressed air or the like to fill it. It provides:
以下にこの発明の実施例に基づき詳細に説明すると、１
はブローヘッドであり、このブローヘッド１の下面には
ブローノズル２，２を有するブロープレート３が取付け
られている。The following is a detailed explanation based on embodiments of the present invention: 1
is a blow head, and a blow plate 3 having blow nozzles 2, 2 is attached to the lower surface of this blow head 1.
また、フローヘッド１の側壁部には自動弁４を介してサ
ンドホッパ５に運通する砂導入管６が蓮設されており、
フローヘッド１の上壁部には複数本の溶剤導入管７が貫
通して設けられていて該導入管７の先端には、スプレー
ノズル８が取付けられている。さらに、フローヘッド１
の上部には、縦軸受９が取付けられてし、て、該縦軸受
９にはブローヘッド１の内部まで達する回転軸１０が回
転自在に鞄支されている。また回転軸１０の上端部はブ
リー１１無端ベルト１２を介してモーター１３の回転軸
１４に回転駆動可能に連結されており、該回転軸１０の
下端（ブローヘッドー内）には混糠羽根１５が固着され
ている。さらにブローヘッド１の上壁には圧縮空気を導
入するためエヤー導入管１６が蓮設されていて該エヤー
導入管１６には自動切替弁１７が付設されている。In addition, a sand introduction pipe 6 is installed on the side wall of the flow head 1 and is connected to a sand hopper 5 via an automatic valve 4.
A plurality of solvent introduction pipes 7 are provided penetrating through the upper wall of the flow head 1, and a spray nozzle 8 is attached to the tip of the introduction pipe 7. Furthermore, flow head 1
A vertical bearing 9 is attached to the upper part of the blow head 1, and a rotating shaft 10 that reaches the inside of the blow head 1 is rotatably supported on the vertical bearing 9. Further, the upper end of the rotating shaft 10 is rotatably connected to the rotating shaft 14 of the motor 13 via the endless belt 12 of the bully 11, and a bran mixed blade 15 is fixed to the lower end of the rotating shaft 10 (inside the blow head). has been done. Furthermore, an air introduction pipe 16 is provided on the upper wall of the blow head 1 to introduce compressed air, and an automatic switching valve 17 is attached to the air introduction pipe 16.
このような構成のものにおいて、ポリスチレン等の合成
樹脂を被覆したコーテッド砂の一定量をサンドホッパ５
に供給しておく、次に自動弁４を開いてサンドホツパ５
内のコーテツドサンドをブローヘッド１内に供給すると
同時にモーター３を駆動させて泥練羽根１５を回転させ
てコーテッドサンドをブローヘッド１内で燈拝させ自動
弁４を閉じる。In such a configuration, a certain amount of coated sand coated with a synthetic resin such as polystyrene is transferred to the sand hopper 5.
Next, open the automatic valve 4 and supply the sand hopper 5.
The coated sand inside is supplied into the blow head 1, and at the same time, the motor 3 is driven to rotate the mud mixer 15, the coated sand is lit inside the blow head 1, and the automatic valve 4 is closed.
の状態で溶剤導入管７に溶剤を供給し、スプレーノズル
８を介して渡洋中のコーテツドサンドに溶剤を一定時間
スプレーする。この操作によりコーテッドサンドは溶剤
により合成樹脂が溶解される。さらに一定時間渡練羽根
１５による凝梓を続けてた後目敷切替弁１７が開かれて
、エヤー導入管１６を介してブローヘッド１内に圧縮空
気が導入されブローノズル２，２から図示されない銭枠
または中子取り内に濠練砂が圧縮空気と共に供給充填さ
れる。充填終了後目動切替弁１７が作動して圧縮空気の
供給が停止されブローヘッドー内の残圧を排出すると共
にモーター１３の駆動を停止させる。以下鋳型または中
子造型に必要な作業が図示されない銭枠または中子取に
対して行われる。本発明は上記の如くブローヘッド１内
で、合成樹脂等を被覆したコーテッドサンド‘こ溶剤を
供給して礎拝し得るようにしたから、コーテツドサンド
を混練鷹拝した後直ちに鏡枠または中子取内に吹込充填
できると共に溶剤の供給をスプレーノズル８により行う
ようにしたから蝿梓中のコーテッドサンド全体に対し均
一に溶剤の供給がなされ短時間のうちに濠練むらのない
混練砂にすることができる。In this state, a solvent is supplied to the solvent introduction pipe 7, and the solvent is sprayed through the spray nozzle 8 onto the coated sand which is being waded into the ocean for a certain period of time. By this operation, the synthetic resin of the coated sand is dissolved by the solvent. After condensation by the kneading blade 15 continues for a certain period of time, the mesh switching valve 17 is opened, and compressed air is introduced into the blow head 1 through the air introduction pipe 16 from the blow nozzles 2, 2 (not shown). Drilling sand is supplied and filled into the coin frame or core tray together with compressed air. After the filling is completed, the variable switching valve 17 is operated to stop the supply of compressed air, exhaust the residual pressure in the blow head, and stop driving the motor 13. The operations necessary for molding a mold or core are then performed on a coin frame or core holder (not shown). In the present invention, as described above, the coated sand coated with synthetic resin etc. is supplied with a solvent in the blow head 1, so that the coated sand can be kneaded and then immediately removed from the lens frame or inside. Since the solvent can be blown and filled into the tray, and the solvent is supplied by the spray nozzle 8, the solvent can be uniformly supplied to the entire coated sand in the sandbox, resulting in uniformly mixed sand in a short time. can do.
さらにブローヘッド内に供給される砂はコープツドサン
ドあるいは合成樹脂粉末と砂等乾燥した状態の物質のみ
であるためサンドホッパ導入管等に砂が付着することが
なくその取扱いがきわめて簡単になる等種々の効果があ
る。Furthermore, since the sand supplied into the blow head is only dry materials such as coated sand or synthetic resin powder and sand, there is no sand adhering to the sand hopper introduction pipe, etc., making it extremely easy to handle. There is an effect.
第１図は本発明の一実施例を示す断面図である。
１・・・・・・フローヘッド、６・・・・・・砂の導入
管、７・・・・・・溶剤導入管、８・・・・・・スプレ
ーノズル、１５・・・・・・混線羽根、１６・・・・・
・エヤー導入管。FIG. 1 is a sectional view showing one embodiment of the present invention. 1... Flow head, 6... Sand introduction pipe, 7... Solvent introduction pipe, 8... Spray nozzle, 15... Mixing blade, 16...
・Air introduction pipe.
Claims (1)
ヘツド１内に、混練羽根１５を回転駆動可能に内蔵させ
ると共に溶剤導入管７を貫通挿入したことを特徴とする
ブローヘツド装置。1. A blowhead device characterized in that a blowhead 1 equipped with a sand introduction pipe 6 and an air introduction pipe 16 has a kneading blade 15 rotatably built therein, and a solvent introduction pipe 7 inserted through the blowhead 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6918778A JPS601101B2 (en) | 1978-06-09 | 1978-06-09 | blowhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6918778A JPS601101B2 (en) | 1978-06-09 | 1978-06-09 | blowhead device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54160518A JPS54160518A (en) | 1979-12-19 |
| JPS601101B2 true JPS601101B2 (en) | 1985-01-11 |
Family
ID=13395463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6918778A Expired JPS601101B2 (en) | 1978-06-09 | 1978-06-09 | blowhead device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS601101B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4706511B2 (en) * | 2006-03-08 | 2011-06-22 | マツダ株式会社 | Mold making method and apparatus |
| JP5049001B2 (en) * | 2006-12-19 | 2012-10-17 | マツダ株式会社 | Mold making equipment |
-
1978
- 1978-06-09 JP JP6918778A patent/JPS601101B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54160518A (en) | 1979-12-19 |
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