JP3374187B2 - Product cooling method and apparatus using circulating molding sand - Google Patents
Product cooling method and apparatus using circulating molding sandInfo
- Publication number
- JP3374187B2 JP3374187B2 JP21169794A JP21169794A JP3374187B2 JP 3374187 B2 JP3374187 B2 JP 3374187B2 JP 21169794 A JP21169794 A JP 21169794A JP 21169794 A JP21169794 A JP 21169794A JP 3374187 B2 JP3374187 B2 JP 3374187B2
- Authority
- JP
- Japan
- Prior art keywords
- sand
- product
- circulating
- drum
- temperature
- 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、パンチアウト後の高温
の儘の製品と解枠砂とを、ドラムの全体が振動しつつ混
合、分離、冷却、搬送等の作用を有する振動ドラム内に
て製品を冷却するに際して、該振動ドラムへ投入直後の
製品に近い砂と鋳枠部の砂とが混合された状態での砂温
と、該振動ドラムより排出されシェイクアウト後の砂温
並びに混合ミキサーのに入る直前の砂温に対する補正値
による制御温度を算出し、この制御温度に対応する加水
量を適宜添加して混練した大量の循環砂を、該振動ドラ
ム内に追加投入して、この振動ドラム内の搬送過程にて
製品を効率的に冷却する様にした循環鋳物砂による製品
冷却方法及びその装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a high temperature product after punching out and a decomposing sand in a vibrating drum having functions of mixing, separating, cooling, conveying, etc. while vibrating the whole drum. When the product is cooled by cooling, the sand temperature in the state where the sand close to the product immediately after being put into the vibrating drum and the sand in the flask are mixed, the sand temperature discharged from the vibrating drum after the shakeout, and the mixing A control temperature is calculated by a correction value for the sand temperature immediately before entering the mixer, and a large amount of circulating sand kneaded by adding an appropriate amount of water corresponding to the control temperature is additionally charged into the vibrating drum, The present invention relates to a product cooling method and apparatus using a circulating molding sand that efficiently cools a product in a conveying process in a vibrating drum.
【０００２】[0002]
【従来の技術】従来より鋳造製品の製作工程は、模型を
用いて適宜に調整した鋳物砂により鋳型を造型し、該鋳
型の空洞部内に熔湯を注湯して所望の鋳造品を成型して
一定時間放置することにより熔湯を凝固せしめた後、こ
の鋳型をパンチアウトして解枠すると共にシェイクアウ
トマシンにより製品とライン砂とに分離して、該製品よ
り大略砂落としをし、更にエプロンコンベヤによりフロ
ア上まで持ち上げて、エプロンコンベヤ上における比較
的高温の製品を人為的に冷却ハンガーに吊り替えてこの
製品を冷却しているものである。而して、この冷却ハン
ガーによる冷却の目的は、鋳鋼製品、特にハイクローム
鋳鋼品等の鋳物材質の表面に直接水をかけて急却すると
製品に表面硬化や割れ、歪みが発生する為、常温下にお
いて自然放熱せしめることにより製品にかかる不都合が
生じる事なく冷却させるもので、この為比較的緩慢に移
動する冷却ハンガーの搬送経路を工場内の作業の邪魔に
ならない様に建屋内の天井部に大きく蛇行しながら張り
巡らして緩慢に移動させて通常３時間前後の自然冷却の
時間を取る様にしているものである。2. Description of the Related Art Conventionally, in the process of manufacturing a cast product, a mold is made by molding sand that is appropriately adjusted using a model, and molten metal is poured into the cavity of the mold to form a desired cast product. After allowing the molten metal to solidify by leaving it for a certain period of time, the mold is punched out to open the frame, and the product and line sand are separated by a shake-out machine, and the sand is roughly removed from the product. The product is cooled by lifting it up to the floor with an apron conveyor and artificially suspending the relatively hot product on the apron conveyor to a cooling hanger. Therefore, the purpose of cooling with this cooling hanger is that if the surface of the casting material such as cast steel products, especially high chrome cast steel products, is directly sprayed with water and suddenly injected, surface hardening, cracking and distortion will occur in the product, It cools the product without causing any inconvenience to the product by allowing it to radiate heat naturally underneath it.Therefore, the transfer route of the cooling hanger, which moves relatively slowly, is installed on the ceiling of the building so that it does not interfere with the work in the factory. It is arranged so that it is stretched slowly while moving in a serpentine manner, and is slowly moved to normally take about 3 hours for natural cooling.
【０００３】しかしながら、かかる製品の冷却方法によ
れば、常温下において自然放熱により製品に割れ、歪み
等を生じる事なく冷却出来る反面、エプロンコンベヤよ
り冷却ハンガーに吊り替えられた製品は、未だ比較的高
温の儘でありこれを工場内の天井部に張り巡らした冷却
ハンガーに吊り下げられた儘で自然放熱し、しかもその
放熱過程において肌砂や中子砂が落下する等により工場
内の温度が異常に上昇すると共に砂や粉塵が充満して工
場内の作業環境が極めて悪い等種々改良すべき問題点を
有しているものである。However, according to such a method for cooling a product, the product can be cooled at room temperature without causing cracks and distortion due to natural heat dissipation, but the product suspended from the apron conveyor on the cooling hanger is still relatively relatively. The temperature of the factory is high because it is a high temperature heat that is naturally radiated by the suspension of it on a cooling hanger that is stretched around the ceiling of the factory, and skin sand and core sand fall during the heat dissipation process. There are various problems that need to be improved, such as an abnormal rise and an extremely poor working environment in the factory due to sand and dust filling.
【０００４】[0004]
【発明が解決しようとする課題】本発明により解決しよ
うとする課題は、製品に割れや、歪みを生じる事なく的
確にして短時間に冷却すると共に、従来の如き長大な冷
却ハンガーの吊り下げによる自然放熱による熱気と砂と
粉塵の落下、飛散による工場内の作業環境の改善を図ら
んとするものである。The problem to be solved by the present invention is to cool the product accurately and in a short time without causing cracks or distortions in the product, and to suspend the long cooling hanger as in the prior art. It aims to improve the working environment in the factory by dropping and scattering hot air, sand and dust due to natural heat dissipation.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、本発明にかかる循環鋳物砂による製品冷却方法は、
パンチアウト後の高温の儘の製品とライン砂とを、振動
ドラム内にて循環砂を用いて製品を冷却する循環鋳物砂
による製品冷却方法において、該振動ドラムへ投入直後
のライン砂の温度と、該振動ドラムより排出後の砂温並
びに混合ミキサーに入る直前の砂温に対して演算した加
水量を混合ミキサーに添加して循環砂を水分量３乃至５
％に調整し、この混練した大量の循環砂を、該振動ドラ
ム内に追加投入することにより、該振動ドラム内におけ
るサンドメタル比が４乃至１０となるようにし、この循
環砂により製品を冷却するようにした、という手段を講
じたのである。 また、本発明にかかる装置は、上記課題
を解決するために、注油工程が完了して一定時間経過語
の鋳型を解枠して高温の儘の製品とライン砂とに分離し
て、これらを振動ドラム等に投入し、更にこれより搬出
される製品とライン砂とを夫々分離して製品はショット
ブラストによる製品研掃へと、ライン砂は公知の搬送手
段と鉄片、夾雑物除去手段等により鉄片と夾雑物を除去
してサンドビンに貯溜した後、再度これを切り出して冷
却工程及び混練工程を経て鋳型造型工程へと循環する鋳
造ラインにおいて、該サンドビンに循環砂ホッパーを分
岐形成すると共に、これに連続する搬送手段により加水
処理が出来る様にした混合ミキサーへと接続し、該混合
ミキサーにて加水した混練砂を振動ドラム等に投入出来
る様な循環砂の流れを形成すると共に、振動ドラム等へ
投入直後のライン砂の砂温と、該ドラム等より排出され
た砂温及び混合ミキサーに入る直前の砂温とを基に演算
した水分量を混合ミキサーに添加、混練して水分量３乃
至５％に調整し、前記振動ドラム内のサンドメタル比が
４乃至１０になる大量の循環砂を振動ドラム内に追加投
入してなる、という手段を講じたのである。 [Means for Solving the Problems ] To solve the above problems
In, the product cooling method by the circulating casting sand according to the present invention,
Vibration of high temperature product and line sand after punching out
Circulating foundry sand that cools the product using circulating sand in the drum
Immediately after being put into the vibrating drum in the product cooling method by
Line sand temperature and sand temperature after discharging from the vibrating drum
And the sand temperature just before entering the mixing mixer.
Add the amount of water to the mixing mixer to add water to the circulating sand 3-5.
%, And a large amount of this kneaded circulating sand was mixed with the vibration drier.
It is possible to keep it inside the vibrating drum by
The sand metal ratio to 4 to 10
Take measures to cool the product with ring sand
It was closed. Further, the device according to the present invention has the above-mentioned problems.
In order to solve the
Open the mold of the mold and separate it into hot product and line sand
Put them in a vibrating drum, and then carry them out.
The product is shot by separating the product and the line sand respectively.
Blasting the product by blasting the line sand
Remove iron pieces and impurities by means of steps, iron pieces, and foreign matter removal means
After storing it in the sand bottle, cut it out again and cool it.
Casting that circulates to the mold making process after the rejection process and kneading process
In the production line, divide the circulating sand hopper into the sand bin.
And the water is formed by the transporting means continuous to this.
Connect to a mixing mixer that allows processing and mix
Kneading sand hydrated with a mixer can be put into a vibration drum etc.
It forms a flow of circulating sand like
Immediately after being charged, the temperature of the line sand and the temperature at which it is discharged from the drum etc.
Calculated based on the sand temperature and the sand temperature just before entering the mixing mixer
Add the amount of water to the mixing mixer, knead the amount of water 3
Adjusted to 5%, the sand metal ratio in the vibrating drum is
A large amount of circulating sand of 4 to 10 is additionally thrown into the vibrating drum.
He took the measure of entering.
【０００６】[0006]
【作用】本発明によれば、振動ドラム内に製品と共に投
入するライン砂は通常の２５▲トン▼／時間の搬送であ
るのに対して、追加投入する循環砂は３５乃至４０▲ト
ン▼／時間と大量に投入すると同時に、この循環砂は上
記の砂温の検知により適宜水分量を３乃至５％に調整し
て混練したものを投入する様にしているので、該振動ド
ラム内のサンドメタル比（投入する砂重量に対する製品
重量比）は４乃至１０と大きくすることにより、サンド
メタル比が小さい場合の弊害、即ち振動が与えられてい
るドラム内ではライン砂は流動状態にあり、更に製品の
熱によりライン砂が乾燥状態となって完全に砂粒化する
と、ライン砂の安息角は小さくなってライン砂のみが次
々と流れだして十分な滞留時間が得られず、しかもこの
様な状態下においては製品の転動が小さくなり恰もドラ
ム内で坐礁した様な状態となって搬送状態が著しく悪化
することは無く、的確にして短時間に製品を冷却すると
共に振動ドラム内を搬送するものである。According to the present invention, the line sand which is put into the vibrating drum together with the product is a normal transport of 25 tons / hour, while the circulating sand which is additionally put is 35 to 40 tons / hour. At the same time as a large amount of time is charged, this circulating sand is adjusted so that the water content is appropriately adjusted to 3 to 5% by the detection of the sand temperature, and the kneaded one is charged, so that the sand metal in the vibrating drum is charged. By increasing the ratio (the weight ratio of the product to the weight of the added sand) to 4 to 10, the harmful effect of a small sand metal ratio, that is, the line sand is in a fluidized state in the drum where vibration is applied, When the line sand is dried and completely granulated by the heat of, the angle of repose of the line sand becomes smaller and only the line sand starts to flow one after another, and a sufficient residence time cannot be obtained. smell Means that the rolling of the product becomes small and the condition of transportation is not significantly deteriorated as if it stranded in the drum, and the product is accurately cooled in a short time and transported in the vibrating drum. is there.
【０００７】[0007]
【実施例】以下、図１及び図２に基づいて本発明の好適
実施例を説明する。パンチアウト後の高温の儘の製品と
解枠砂、即ち、ライン砂とを、振動ドラム内にて循環砂
を用いて製品を冷却するに際して、該振動ドラムへ投入
直後のライン砂の温度と、該振動ドラムより排出後の砂
温並びに混合ミキサーに入る直前の砂温に対して演算し
た加水量を混合ミキサーに添加して循環砂を水分量３乃
至５％に調整し、この混練した大量の循環砂を、該振動
ドラム内に追加投入することにより、前記振動ドラム内
のサンドメタル比が４乃至１０になるようにし、この循
環砂により製品を冷却する様にしているもので、その一
実施例を図１のフロー図により説明すれば、注油工程１
が完了して一定時間経過後の鋳型の流れＡをパンチアウ
ト２により高温の儘の製品の流れＢと解枠により砂塊化
したライン砂の流れＣとに分離して、これらをオシレー
テングコンベア３により間欠搬送しつつ製品を一次冷却
した後振動ドラム４内に投入し、更に該振動ドラム４よ
り搬出される製品の流れＢとライン砂の流れＣとをシェ
イクアウトマシン５により夫々に分離して製品の流れＢ
はエプロンコンベア６よりショットブラスト７による製
品研掃へと、ライン砂の流れＣはベルトコンベア８、マ
グネットセパレーター９により鉄片を除去し、更にバケ
ットエレベーター１０及びバイブラスクリーン１１によ
り夾雑物を除去してサンドビン１２に貯溜した後、再度
これを切り出してサンドクーラー等の冷却工程１３及び
混練工程１４を経て鋳造造型工程１５へと循環する鋳造
ラインを構成している。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to FIGS. 1 and 2.
An example will be described. Circulating sand of hot product after punching out and open frame sand , that is, line sand in the vibrating drum
When the product is cooled by using the mixing mixer, the amount of water added is calculated with respect to the temperature of the line sand immediately after being charged into the vibrating drum, the sand temperature after discharging from the vibrating drum, and the sand temperature immediately before entering the mixing mixer. And add circulating sand to water content 3
In the vibrating drum, by adjusting the amount to 5% and adding a large amount of this kneaded circulating sand into the vibrating drum additionally .
The sand metal ratio of 4 to 10 is used, and the product is cooled by this circulating sand. An example thereof will be described with reference to the flow chart of FIG.
After a certain period of time has passed since the completion of the above process, the mold flow A is separated by the punch-out 2 into the high temperature product flow B and the line sand flow C that has been agglomerated by the open frame, and these are oscillated. The product is first cooled while being intermittently conveyed by the conveyer 3 and then put into the vibrating drum 4, and the product flow B and the line sand flow C carried out from the vibrating drum 4 are separated by the shakeout machine 5. Then product flow B
Is the product cleaning from the apron conveyor 6 to the shot blasting 7, the line sand flow C removes iron pieces by the belt conveyor 8 and the magnetic separator 9, and further removes foreign matters by the bucket elevator 10 and the vibra screen 11 to remove sand. After being stored in 12, a casting line is constructed in which this is cut out again and is circulated to a casting molding step 15 through a cooling step 13 such as a sand cooler and a kneading step 14 .
【０００８】振動ドラム４からサンドビン１２へと、及
び該サンドビン１２に循環砂ホッパー１６を分岐形成す
ると共に、これに連続してベルトフィダー１７及びバケ
ットエレベーター１８等の砂切出し手段より加水処理が
出来る様にした混合ミキサー１９へと接続し、該混合ミ
キサー１９にて加水した混練砂を振動ドラム４内に投入
出来る様な循環砂の流れＤを形成し、別途振動ドラム４
へ投入直後の製品に近い砂と鋳枠部の砂とが混合された
状態のライン砂の流れＣの砂温Ｔｄと、該振動ドラム４
より排出されシェイクアウト後の砂温ｅ及び循環砂ホッ
パー１６より切出し混合ミキサー１９に入る直前の砂温
ｆとの夫々の砂温に対して表１で求める補正値を用いて
表２の算式による制御温度を算出し、更にこの制御温度
に対して図２の制御温度と加水量との関係を示すグラフ
で求めた加水量（％）の水を適宜添加して該循環砂を混
合ミキサー１９にて混練して水分量３乃至５％に調整し
た大量の循環砂を振動ドラム４内に追加投入してなるも
のである。A circulating sand hopper 16 is branched and formed from the vibrating drum 4 to the sand bin 12 and to the sand bin 12, and water can be continuously processed by sand cutting means such as a belt feeder 17 and a bucket elevator 18. Connected to the mixing mixer 19 described above, and a flow D of circulating sand is formed so that the kneading sand hydrated by the mixing mixer 19 can be charged into the vibrating drum 4.
The temperature Td of the flow C of the line sand in a state in which the sand close to the product immediately after being put into the sand and the sand of the casting frame are mixed, and the vibrating drum 4
By using the correction values obtained in Table 1 for the sand temperature e discharged after shakeout and the sand temperature f immediately before entering the mixing mixer 19 by cutting out from the circulating sand hopper 16, according to the formula of Table 2. The control temperature is calculated, and the amount of water (%) obtained from the graph showing the relationship between the control temperature and the amount of water in FIG. 2 is appropriately added to this control temperature to add the circulating sand to the mixing mixer 19. A large amount of circulating sand adjusted to have a water content of 3 to 5% is additionally charged into the vibrating drum 4.
【０００９】 [0009]
【００１０】 [0010]
【００１１】本発明は叙上の如き構成によりなるもので
あって、本実施例においては振動ドラム４より搬出され
る製品の流れＢとライン砂の流れＣとをシェイクアウト
マシン５により夫々に分離してしているが、これらの機
器の配置場所との制約等により振動ドラム４の先端搬出
口にパンチング部を設けて夫々に分離しても良く、又振
動ドラム４に代えクーリングドラムにより同様の製品冷
却も可能であるが、この場合ドラム内の滞留時間が大き
な因子となるので、クーリングドラムの場合においての
滞留時間はドラムの回転数と送り羽根のリードによりあ
る程度は機械的に決定されるが、この場合においてはク
ーリングドラムに投入される製品の温度とライン砂の流
れＣによる投入直前の砂温等を考慮すれば同様の結果が
得られるものである。The present invention is constructed as described above, and in the present embodiment, the product flow B discharged from the vibrating drum 4 and the line sand flow C are separated by the shakeout machine 5. However, a punching portion may be provided at the leading outlet of the vibrating drum 4 so as to separate the vibrating drum 4 from each other due to restrictions such as the arrangement location of these devices, or the vibrating drum 4 may be replaced by a cooling drum. Product cooling is also possible, but in this case the residence time in the drum is a major factor, so the residence time in the case of a cooling drum is mechanically determined to some extent by the rotational speed of the drum and the lead of the feed blade. In this case, the same result can be obtained by considering the temperature of the product charged to the cooling drum and the temperature of the sand immediately before being charged by the flow C of the line sand. .
【００１２】本発明による制御温度に対する加水量との
関係を説明すれば、注湯工程１が完了し一定時間経過後
の鋳型Ａをパンチアウト２により高温の儘の製品Ｂと解
枠により砂塊化したライン砂Ｃとに分離して、オシレー
テングコンベヤ３により間欠搬送しつつ一次冷却して振
動ドラム４内に投入すると同時に、該振動ドラム４へ投
入直後のライン砂の砂温Ｔｄを計測すれば１２０℃と
し、又、該振動ドラム４より排出されシェイクアウト５
後の砂温ｅは９０℃、混合ミキサー１９の直前の砂温ｆ
を６０℃とすれば、これらの砂温に対する補正値はシェ
イクアウト後の砂温ｅは１．２と、又混合ミキサー１９
直前の砂温ｆは１．０となって、これらの制御温度の算
式はＴ＝１２０×１．２×１．０となり、制御温度は１
４４℃となって、これを図２の制御温度と加水量との関
係のグラフより加水量％を求めれば５．５％の水分量を
混合ミキサー１９に添加して混練した大量の循環砂Ｄを
振動ドラム４内に追加投入するものである。Explaining the relationship between the controlled temperature and the amount of water added according to the present invention, the mold A after the pouring step 1 is completed and a certain time has elapsed is punched out from the mold A of the high temperature product B and the lump of sand by the open frame. It is separated into liquefied line sand C, and while being intermittently conveyed by the oscillating conveyor 3, it is primarily cooled and charged into the vibrating drum 4, and at the same time, the sand temperature Td of the line sand immediately after being charged into the vibrating drum 4 is measured. If the temperature is 120 ° C, it is discharged from the vibrating drum 4 and shakeout 5
The subsequent sand temperature e is 90 ° C., and the sand temperature f immediately before the mixing mixer 19 is
Is 60 ° C., the correction value for these sand temperatures is that the sand temperature e after shakeout is 1.2, and the mixing mixer 19
The immediately preceding sand temperature f is 1.0, and the formula for these control temperatures is T = 120 × 1.2 × 1.0, and the control temperature is 1
At 44 ° C., the amount of water added was calculated from the graph of the relationship between the control temperature and the amount of water added in FIG. Is additionally charged into the vibrating drum 4.
【００１３】又、発明者の実験結果によれば、最適なる
製品冷却には混合ミキサー１９による水分量３乃至５％
に水分管理して調整し混練した大量の循環砂を振動ドラ
ム４内に投入して製品を冷却後、該振動ドラム４より搬
出されたライン砂の流れＣの砂水分量が１．５％前後に
なることが判明した。しかも、回収砂としての水分量
１．５％前後はその後の鋳物砂の混練等の工程にとって
非常に適切な状態といえるものである。According to the results of experiments by the inventor, the water content of the mixing mixer 19 is 3 to 5% for optimum product cooling.
A large amount of circulating sand that has been adjusted and kneaded by controlling the water content is put into the vibrating drum 4 to cool the product, and the water content of the stream C of the line sand carried out from the vibrating drum 4 is about 1.5%. Turned out to be. Moreover, the water content of about 1.5% as the recovered sand can be said to be very suitable for the subsequent steps such as kneading of the molding sand.
【００１４】[0014]
【発明の効果】以上説明したように、本発明は、振動ド
ラム４内に製品Ｂと共に投入するライン砂Ｃに対し追加
投入する循環砂を大量に投入すると同時に、この循環砂
は上記の砂温の検知により適宜水分量を３乃至５％に調
整して混練したものを投入する様にしているので、該振
動ドラム内のサンドメタル比を４乃至１０と大きくする
ことにより、製品に割れや、歪みを生じる事なく的確に
して短時間に製品を冷却すると共に従来の如き長大な冷
却ハンガーの吊り下げによる自然放熱による熱気と砂と
粉塵の落下、飛散による工場内の作業環境の改善を図る
極めて有用なるものである。As described above, according to the present invention, a large amount of the circulating sand to be additionally charged to the line sand C to be charged together with the product B is charged into the vibrating drum 4, and at the same time, the circulating sand has the above-mentioned sand temperature. The amount of water is appropriately adjusted to 3 to 5% by the detection of kneading, and the kneaded product is added. Therefore, by increasing the sand metal ratio in the vibrating drum to 4 to 10, cracks in the product, Cools the product accurately and in a short time without causing distortion, and aims to improve the working environment in the factory by dropping and scattering hot air, sand and dust due to natural heat dissipation by suspending a long cooling hanger as in the past. It will be useful.
【図１】本発明の一実施例によるフロー図である。FIG. 1 is a flow chart according to an embodiment of the present invention.
【図２】制御温度と加水量との関係を示すグラフであ
る。FIG. 2 is a graph showing the relationship between control temperature and water addition amount.
１ 注湯工程 ２ パンチアウト ３ オシレーテングコンベヤ ４ 振動ドラム ５ シェイクアウトマシン ６ エプロンコウベヤ ７ ショットブラスト ８ ベルトコンベヤ ９ マグネットセパレーター １０ バレットエレベーター １１ バイバラスクリーン １２ サンドビン １３ 冷却工程 １４ 混練工程 １５ 鋳型造型工程 １６ 循環砂ホッパー １７ ベルトフィダー １８ バケットエレベーター １９ 混合ミキサー Ａ 鋳型の流れ Ｂ 製品の流れ Ｃ ライン砂の流れ Ｄ 循環砂の流れ Ｔｄ ライン砂の流れの砂温 ｅ シェイクアウト後の砂温の補正値 ｆ 混合ミキサー直前の砂温の補正値 1 Pouring process 2 punch out 3 Oscillating conveyor 4 vibrating drum 5 shakeout machines 6 Apron Kobeya 7 shot blast 8 belt conveyor 9 Magnet separator 10 Bullet elevator 11 By Rose Screen 12 Sandbin 13 Cooling process 14 Kneading process 15 Mold making process 16 Circulating sand hopper 17 Belt feeder 18 bucket elevator 19 mixing mixer A Mold flow B Product flow C line sand flow D Circulating sand flow Sand temperature of Td line sand flow e Correction value of sand temperature after shakeout f Correction value of sand temperature immediately before mixing mixer
フロントページの続き (56)参考文献 特開 昭56−17177（ＪＰ，Ａ) 特開 昭58−86970（ＪＰ，Ａ) 特開 昭53−147622（ＪＰ，Ａ) 特開 平１−192465（ＪＰ，Ａ) 特開 平６−328228（ＪＰ，Ａ) 特開 平４−167960（ＪＰ，Ａ) 特開 昭55−77972（ＪＰ，Ａ) 特開 昭59−224266（ＪＰ，Ａ) 特開 昭56−14068（ＪＰ，Ａ) 特開 昭58−159941（ＪＰ，Ａ) 実開 昭57−127369（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B22D 30/00 B22C 5/08 B22D 29/00 B22D 29/04 B22C 5/06 Continuation of front page (56) Reference JP-A-56-17177 (JP, A) JP-A-58-86970 (JP, A) JP-A-53-147622 (JP, A) JP-A-1-192465 (JP , A) JP-A-6-328228 (JP, A) JP-A-4-167960 (JP, A) JP-A-55-77972 (JP, A) JP-A-59-224266 (JP, A) JP-A-SHO 56-14068 (JP, A) JP 58-159941 (JP, A) Actually developed 57-127369 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) B22D 30/00 B22C 5/08 B22D 29/00 B22D 29/04 B22C 5/06
Claims (2)
ン砂とを、振動ドラム内にて循環砂を用いて製品を冷却
する循環鋳物砂による製品冷却方法において、該振動ド
ラムへ投入直後のライン砂の温度と、該振動ドラムより
排出後の砂温並びに混合ミキサーに入る直前の砂温に対
して演算した加水量を混合ミキサーに添加して循環砂を
水分量３乃至５％に調整し、この混練した大量の循環砂
を、該振動ドラム内に追加投入することにより、該振動
ドラム内におけるサンドメタル比が４乃至１０となるよ
うにし、この循環砂により製品を冷却することを特徴と
する循環鋳物砂による製品冷却方法。1. A high temperature product and a rye after punching out.
In the product cooling method using circulating casting sand, in which the product is cooled by circulating sand in the vibrating drum, the temperature of the line sand immediately after being charged into the vibrating drum and the sand temperature after being discharged from the vibrating drum. Also, add the amount of water calculated for the sand temperature immediately before entering the mixing mixer to the mixing mixer to
The water content was adjusted to 3 to 5%, and a large amount of this kneaded circulating sand was additionally charged into the vibrating drum, whereby the vibration
Sand metal ratio in the drum will be 4 to 10
A method for cooling a product by circulating foundry sand, characterized in that the product is cooled by the circulating sand.
型を解枠して高温の儘の製品とライン砂とに分離して、
これらを振動ドラム等に投入し、更にこれより搬出され
る製品とライン砂とを夫々分離して製品はショットブラ
ストによる製品研掃へと、ライン砂は公知の搬送手段と
鉄片、夾雑物除去手段等により鉄片と夾雑物を除去して
サンドビンに貯溜した後、再度これを切り出して冷却工
程及び混練工程を経て鋳型造型工程へと循環する鋳造ラ
インにおいて、該サンドビンに循環砂ホッパーを分岐形
成すると共に、これに連続する搬送手段により加水処理
が出来る様にした混合ミキサーへと接続し、該混合ミキ
サーにて加水した混練砂を振動ドラム等に投入出来る様
な循環砂の流れを形成すると共に、振動ドラム等へ投入
直後のライン砂の砂温と、該ドラム等より排出された砂
温及び混合ミキサーに入る直前の砂温とを基に演算した
水分量を混合ミキサーに添加、混練して水分量３乃至５
％に調整し、前記振動ドラム内のサンドメタル比が４乃
至１０になる大量の循環砂を振動ドラム内に追加投入し
てなることを特徴とする循環鋳物砂による製品冷却装
置。2. After the lubrication process is completed, the mold for a certain period of time is unframed and separated into a high temperature product and line sand,
Put these into a vibrating drum etc., and further separate the product carried out from this and the line sand, and the product goes to product blasting by shot blasting, the line sand is a known conveying means and iron piece, foreign matter removing means After the iron pieces and impurities are removed by the above method and stored in a sand bin, the recirculating sand hopper is branched and formed in the sand bin in a casting line that is cut out again and circulated to a mold making step through a cooling step and a kneading step. , Connected to a mixing mixer capable of performing a hydration treatment by a conveying means continuous to this, forms a flow of circulating sand so that the kneaded sand hydrated by the mixing mixer can be introduced into a vibrating drum, etc. The water content calculated based on the sand temperature of the line sand immediately after being put into the drum, etc., the sand temperature discharged from the drum etc., and the sand temperature just before entering the mixing mixer is used to mix water. Added over, the water content 3 to 5 by kneading
%, And the sand metal ratio in the vibrating drum is 4 %
A product cooling device using circulating casting sand , wherein a large amount of circulating sand of up to 10 is additionally charged into the vibrating drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21169794A JP3374187B2 (en) | 1994-08-01 | 1994-08-01 | Product cooling method and apparatus using circulating molding sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21169794A JP3374187B2 (en) | 1994-08-01 | 1994-08-01 | Product cooling method and apparatus using circulating molding sand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0839231A JPH0839231A (en) | 1996-02-13 |
| JP3374187B2 true JP3374187B2 (en) | 2003-02-04 |
Family
ID=16610098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21169794A Expired - Fee Related JP3374187B2 (en) | 1994-08-01 | 1994-08-01 | Product cooling method and apparatus using circulating molding sand |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3374187B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3308217B2 (en) * | 1998-09-08 | 2002-07-29 | 新東工業株式会社 | Casting cooling and unloading method in sand circulation casting facility |
| CN107457380A (en) * | 2017-06-23 | 2017-12-12 | 芜湖仅机械有限公司 | A kind of support bracket fastened air cooling equipment of communication base station |
| CN107511471A (en) * | 2017-06-23 | 2017-12-26 | 芜湖仅机械有限公司 | A kind of rotary drive mechanism of the support bracket fastened air-cooled transporter of communication base station |
| JP6791100B2 (en) * | 2017-11-15 | 2020-11-25 | 新東工業株式会社 | Mold disassembling system |
| CN108856682B (en) * | 2018-08-19 | 2024-01-23 | 济南二机床集团有限公司 | Vibration exciter type inertial vibration shakeout machine |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1603082A (en) * | 1977-05-27 | 1981-11-18 | Wallwork & Co Ltd Henry | Casting installations |
| JPS5577972A (en) * | 1978-12-08 | 1980-06-12 | Nippon Kokan Keishiyu Kk | Mold treating method |
| JPS5614068A (en) * | 1979-07-16 | 1981-02-10 | Sintokogio Ltd | Wet type cooling method of casting |
| JPS5617177A (en) * | 1979-07-18 | 1981-02-18 | Sintokogio Ltd | Cooling method of casting blank material |
| JPS57127369U (en) * | 1981-01-30 | 1982-08-09 | ||
| JPS5886970A (en) * | 1981-11-19 | 1983-05-24 | Mazda Motor Corp | Cooler for casting |
| JPS58159941A (en) * | 1982-03-17 | 1983-09-22 | Taiyo Chuki Kk | Method for regulating temperature of molding sand recovered from green sand mold in cooling drum |
| JPS59224266A (en) * | 1983-06-03 | 1984-12-17 | Sintokogio Ltd | After-treatment method of casing |
| JP2616791B2 (en) * | 1988-01-25 | 1997-06-04 | 旭テック 株式会社 | Cooling drum device |
| JP2738142B2 (en) * | 1990-10-31 | 1998-04-08 | 日産自動車株式会社 | Casting product cooling and sand removal equipment |
| US5505247A (en) * | 1993-05-21 | 1996-04-09 | General Kinematics Corporation | Casting process and system |
-
1994
- 1994-08-01 JP JP21169794A patent/JP3374187B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0839231A (en) | 1996-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1196467A (en) | Air cooling system for a vibratory sand reclaiming apparatus | |
| JP4700737B2 (en) | Casting production line equipment | |
| CN105170901B (en) | Large-size cast steel wet type clay sand treatment system and sand treatment method | |
| JP3374187B2 (en) | Product cooling method and apparatus using circulating molding sand | |
| CN103934411A (en) | PEPSET resin moulding and sand cyclic utilization clean casting technology | |
| CN106396679A (en) | Graphite sand cold iron and preparation method thereof | |
| JP3416263B2 (en) | Casting processes and systems | |
| CN110605382A (en) | Automatic production device and production process for foundry | |
| JPH08318244A (en) | Method and apparatus for producing sulfur solidified molded article | |
| US9144843B2 (en) | Dust emission reduction during metal casting | |
| JP2541414B2 (en) | Processing method for foundry sand | |
| JPS59224266A (en) | After-treatment method of casing | |
| US3690066A (en) | Abrasive blast cleaning system | |
| JP3363064B2 (en) | V process mold sand treatment method and equipment | |
| JP3328722B2 (en) | Foundry sand recycling equipment | |
| EP0099470A1 (en) | Casting non-ferrous metals | |
| JPH0455038A (en) | Method for recycling regenerated sand of casting mold | |
| CN110183218A (en) | A kind of preparation method of modified high attachment continuous casting production dry materials | |
| RU2353682C2 (en) | Processing method of disintegrating slag | |
| JP5435364B2 (en) | Processing method and processing system for harmful substances generated in casting line | |
| JP7390517B1 (en) | Method and device for separating aluminum chips from aluminum casting sand | |
| JPS63317232A (en) | Method for treating molding sand | |
| JPH0216850Y2 (en) | ||
| JP3308217B2 (en) | Casting cooling and unloading method in sand circulation casting facility | |
| JPS58937B2 (en) | Method for recycling foundry sand using inorganic binder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |