JP2015000404A - Molten metal filling device and method - Google Patents

Molten metal filling device and method Download PDF

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JP2015000404A
JP2015000404A JP2013124423A JP2013124423A JP2015000404A JP 2015000404 A JP2015000404 A JP 2015000404A JP 2013124423 A JP2013124423 A JP 2013124423A JP 2013124423 A JP2013124423 A JP 2013124423A JP 2015000404 A JP2015000404 A JP 2015000404A
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molten metal
mold
granular material
mouse
metal filling
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厚一 阪野
Koichi Sakano
厚一 阪野
加藤　正之
Masayuki Kato
正之 加藤
西田　理
Osamu Nishida
理 西田
雅由 杉田
Masayoshi Sugita
雅由 杉田
賢一 川野
Kenichi Kawano
賢一 川野
五家　政人
Masato Goie
政人 五家
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FOUNDRY TECH CONSULTING KK
HAMAKITA KOGYO CO Ltd
TOWA ELECTRIC
TOWA DENKI KK
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FOUNDRY TECH CONSULTING KK
HAMAKITA KOGYO CO Ltd
TOWA ELECTRIC
TOWA DENKI KK
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Priority to JP2013124423A priority Critical patent/JP2015000404A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a molten metal filling device and method capable of pouring molten metal only by the capacity of a cavity, making the molten metal pass through a sprue runner portion from a sprue portion to certainly and promptly feed that into the cavity, and preventing the returning of the molten metal fed into the cavity.SOLUTION: A molten metal filling device 1 includes: a granular article hopper 7 for storing a heat resisting granular article filled in a poured casting mold B; a mouth 10 airtightly connected to sprue C of the casting mold B, and feeding the granular article and gas to the sprue C; a granular article cut-out unit 21 for measuring a predetermined amount of the granular article from the granular article hopper 7 and feeding that to the mouth 10; an automatic valve 42 for introducing air of predetermined pressure to piping 20 connecting the granular article hopper 7 and the mouth 10; and a flow rate adjusting valve 44 for adjusting air blowing-in amount.

Description

本発明は、鋳型に溶湯を確実かつ迅速に充填する溶湯充填装置及び方法に関する。   The present invention relates to a molten metal filling apparatus and method for reliably and quickly filling molten metal into a mold.

従来、鋳造工場では溶解炉で溶解した高温の溶湯を注湯場において生型砂を使った鋳型に注湯することで鋳物製品を製造している。   Conventionally, casting products are manufactured by pouring hot molten metal melted in a melting furnace into a mold using green sand at a pouring station.

溶湯を鋳型に注湯する際、凝固段階での鋳型内での溶湯のひけを考慮して、溶湯は湯口カップのほぼ上面まで注湯している。すなわち、製品としての鋳物を製造するためのキャビティーを超えて湯口部、湯道部及び押湯部にも溶湯を注湯していた。鋳型を冷却した後、鋳型をばらして、製品を取り出す。その際、製品を除く湯口部、湯道部及び押湯部は最終的には不要な部分として製品から分離され、再びリターン材として再溶解に供される。この不要な部分のうち押湯部は製品部の健全性を補償するために凝固過程で必要なものであるが、湯道部と湯口部は注湯中にキャビティーに溶湯を充填するためにのみ必要なものである。   When pouring the molten metal into the mold, the molten metal is poured almost to the upper surface of the spout cup in consideration of the sink of the molten metal in the mold at the solidification stage. That is, the molten metal is poured into the gate portion, runner portion, and feeder portion beyond the cavity for producing a casting as a product. After the mold is cooled, the mold is released and the product is removed. At that time, the sprue part, the runner part, and the hot water part excluding the product are finally separated from the product as unnecessary parts, and again used as a return material for remelting. Of these unnecessary parts, the feeder part is necessary in the solidification process to compensate for the soundness of the product part, but the runner part and the sprue part are used to fill the cavity with molten metal during pouring. Is only necessary.

よって、湯口部や湯道部に溶湯を注湯することは、余分な溶湯が必要になることに加え、鋳型をばらして取出した鋳物を製品にする際の加工作業を増大させる結果となっていた。   Therefore, pouring the molten metal into the sprue part or the runner part not only requires an extra molten metal, but also results in an increase in processing work when the casting is taken out by releasing the mold. It was.

上記の問題を解決するために、鋳型に注湯後、湯口から流動的な充填物を圧力で充填し、溶湯をキャビティーに充填する方法が提案されている（特許文献１参照）。この方法では、キャビティーの体積とほぼ等しい体積の溶湯を注湯開始後、溶湯がキャビティーに充填される前に、流動的な充填物を圧縮空気で送り込み、注湯された溶湯をキャビティーに充填し、さらに充填物をキャビティーに充填された溶湯の最後部に接する所にも充填する。そして、充填物で加圧した状態で溶湯を凝固させて鋳物を製造する。よって、キャビティー以外の部分は充填物で充満され、余分に注湯することを防止する。   In order to solve the above problems, a method has been proposed in which after pouring into a mold, a fluid filling is filled with pressure from a pouring gate, and the molten metal is filled into a cavity (see Patent Document 1). In this method, after the start of pouring a molten metal having a volume approximately equal to the volume of the cavity, before the molten metal is filled into the cavity, the fluid filler is fed with compressed air, and the molten metal is poured into the cavity. In addition, the filling material is also filled at a position in contact with the last part of the molten metal filled in the cavity. And a molten metal is solidified in the state pressurized with the filler, and a casting is manufactured. Therefore, the portions other than the cavity are filled with the filling material, thereby preventing excessive pouring.

特許第４８８８７９６号公報Japanese Patent No. 4888796

しかし、キャビティーの配置や湯道部や湯口部の形状によっては、充填物に熱が移動することにより溶湯の表面温度が低下し、溶湯をキャビティーに充填する前に溶湯の表面が固化し始め、あるいは、湯道部等との摩擦により充填物を押し込むための抵抗が大きくなる場合がある。よって、所望の溶湯の充填が行い難くなることがある。   However, depending on the arrangement of the cavities and the shape of the runners and spouts, the surface temperature of the molten metal decreases due to the transfer of heat to the filler, and the molten metal surface solidifies before filling the cavity with the molten metal. In some cases, the resistance for pushing in the filler may increase due to friction with the runner or the like. Therefore, it may be difficult to fill a desired molten metal.

そこで、本発明は、溶湯を所望のキャビティーの容積のみ注湯し、その溶湯を湯口部から湯道部をも通過させて、確実かつ迅速にキャビティーに送り込み、かつ、キャビティーに送り込んだ溶湯が戻ることを防止する、溶湯充填装置及び方法を提供することを目的とする。   Therefore, in the present invention, the molten metal is poured only in the desired cavity volume, and the molten metal is also passed through the runner from the gate, reliably and quickly into the cavity, and then fed into the cavity. It is an object of the present invention to provide a molten metal filling apparatus and method that prevent the molten metal from returning.

上記の課題を解決するために、本発明の第１の態様に係る溶湯充填装置は、例えば図３および図４に示すように、注湯した鋳型Ｂに充填される耐熱性の粒状物を収容する粒状物ホッパ１６と、鋳型Ｂの湯口Ｃと気密に接続し、粒状物およびガスを湯口Ｃに送り込むマウス１０と、粒状物ホッパ１６から粒状物を所定量計量してマウス１０に送る粒状物切出ユニット２１と、粒状物ホッパ１６とマウス１０とを接続する配管２０にエアを導入する自動弁４２と、該エアの吹き込み量を調整する流量調整弁４４とを備える。   In order to solve the above-described problem, the molten metal filling apparatus according to the first aspect of the present invention accommodates a heat-resistant granular material filled in a poured mold B as shown in FIGS. 3 and 4, for example. The granular material hopper 16 is connected to the gate C of the mold B in an airtight manner, and the mouse 10 feeds the granular material and gas into the gate C. The cutting unit 21 includes an automatic valve 42 that introduces air into the pipe 20 that connects the particulate hopper 16 and the mouse 10, and a flow rate adjusting valve 44 that adjusts the amount of air blown.

このように構成すると、鋳型に注湯した後に所定量のエアを鋳型に吹き込み、粒状物を充填することにより迅速に溶湯をキャビティーに充填し、キャビティーに確実に溶湯を送り込み、送り込んだ溶湯が戻ることを防止することができる。   With this configuration, a predetermined amount of air is blown into the mold after pouring into the mold, and the molten metal is quickly filled into the cavity by filling the granular material, and the molten metal is reliably fed into the cavity. Can be prevented from returning.

本発明の第２の態様に係る溶湯充填装置は、例えば図３に示すように、第１の態様の溶湯充填装置１において、マウス１０を昇降させる溶湯充填装置昇降部８と、マウス１０を水平方向で移動させる溶湯充填装置前後部４と溶湯充填装置横行部６とを備える。     For example, as shown in FIG. 3, the molten metal filling apparatus according to the second aspect of the present invention includes a molten metal filling apparatus elevating unit 8 that moves the mouse 10 up and down in the molten metal filling apparatus 1 according to the first aspect, and the mouse 10 horizontally. The molten metal filling apparatus front-and-rear part 4 and the molten metal filling apparatus traversing part 6 moved in the direction are provided.

このように構成すると、溶湯充填装置前後部と溶湯充填装置横行部とでマウスの位置を湯口に合わせ、溶湯充填装置昇降部でマウスを気密に湯口に接続することができるので、確実かつ迅速にエアを鋳型に吹き込み、粒状物を湯口に送ることができる。   With this configuration, the position of the mouse can be adjusted to the gate at the front and rear portions of the molten metal filling device and the horizontal portion of the molten metal filling device, and the mouse can be connected to the molten metal at the molten metal filling device lifting and lowering portion reliably and quickly. Air can be blown into the mold to send the granular material to the gate.

本発明の第３の態様に係る溶湯充填装置は、第１または第２の態様の溶湯充填装置において、マウスの下降端を押し付け反力により決定する。   The molten metal filling apparatus according to the third aspect of the present invention is the molten metal filling apparatus according to the first or second aspect, wherein the lower end of the mouse is pressed and determined by the reaction force.

このように構成すると、マウスを確実に湯口と気密に接続させることができる。   If comprised in this way, a mouse | mouth can be reliably connected with a gate.

本発明の第４の態様に係る溶湯充填方法は、例えば図３および図８〜１２に示すように、第１ないし第３の態様のいずれかの溶湯充填装置１を用いて、鋳型Ｂに注湯後に、湯口Ｃから圧縮ガスおよび耐熱性の粒状物Ｇを送り溶湯Ｆを所望のキャビティーＤに充填し、耐熱性の粒状物Ｇを用いて該所望のキャビティーＤから溶湯Ｆが戻らないようにする。   The molten metal filling method according to the fourth aspect of the present invention is poured into the mold B using the molten metal filling apparatus 1 according to any one of the first to third aspects as shown in FIGS. After the hot water, the compressed gas and the heat-resistant granular material G are sent from the gate C, and the molten metal F is filled in the desired cavity D, and the molten metal F does not return from the desired cavity D using the heat-resistant granular material G. Like that.

このように構成すると、圧縮ガスおよび耐熱性の粒状物を送り迅速に溶湯を所望のキャビティーに充填し、耐熱性の粒状物を用いて所望のキャビティーから溶湯が戻らないようにするので、確実かつ迅速に溶湯をキャビティーに充填することができる。   With this configuration, the compressed gas and the heat-resistant granular material are sent and the molten metal is quickly filled into the desired cavity, and the molten metal is prevented from returning from the desired cavity using the heat-resistant granular material. The molten metal can be reliably and quickly filled into the cavity.

本発明によれば、迅速に溶湯をキャビティーに充填し、確実にキャビティーに送り込んだ溶湯が戻ることを防止することができるので、鋳型をばらした後の鋳物に湯口部や湯道部が発生しなくなり、鋳物製品を効率的に製造でき、省エネルギーおよび省資源に大きく寄与できる。   According to the present invention, it is possible to quickly fill the cavity with the molten metal and reliably prevent the molten metal that has been fed into the cavity from returning. No casting occurs, casting products can be manufactured efficiently, and can contribute greatly to energy and resource saving.

本発明の一実施形態の溶湯充填装置の平面概略図である。It is a plane schematic diagram of the molten metal filling device of one embodiment of the present invention. 本発明の一実施形態の溶湯充填装置の側面概略図である。It is a side schematic diagram of the molten metal filling device of one embodiment of the present invention. 本発明の一実施形態の溶湯充填装置の正面概略図であり、溶湯充填装置が鋳型に作業を施す直前の様子を示す。It is a front schematic diagram of the molten metal filling device of one embodiment of the present invention, and shows a state just before the molten metal filling device performs work on a mold. 本発明の一実施形態の溶湯充填装置の加圧系統図の例である。It is an example of the pressurization system diagram of the molten metal filling apparatus of one Embodiment of this invention. 本発明の一実施形態の溶湯充填装置の加圧系統図の変更例である。It is the example of a change of the pressurization system diagram of the molten metal filling apparatus of one Embodiment of this invention. 本発明の一実施形態の溶湯充填装置の正面概略図であり、溶湯充填装置が鋳型に作業を施す様子を示す。It is a front schematic diagram of the molten metal filling apparatus of one embodiment of the present invention, and shows a mode that a molten metal filling apparatus performs work to a mold. 本発明の一実施形態の溶湯充填装置の正面概略図であり、溶湯充填装置が鋳型に作業を施した後、鋳型を搬送できる状態に戻す様子を示す。It is a front schematic diagram of the molten metal filling device of one embodiment of the present invention, and shows a state where the molten metal filling device returns to a state in which the mold can be conveyed after performing work on the mold. 本発明の溶湯充填装置を用いて鋳型に溶湯を充填する様子を示す鋳型部分の断面図であり、鋳型に溶湯を注湯した様子を示す。It is sectional drawing of the casting_mold | template part which shows a mode that a molten metal is filled into a casting_mold | template using the molten metal filling apparatus of this invention, and shows a mode that the molten metal was poured into the casting_mold | template. 本発明の溶湯充填装置を用いて鋳型に溶湯を充填する様子を示す鋳型部分の断面図であり、湯口にマウスを接続した様子を示す。It is sectional drawing of the casting_mold | template part which shows a mode that a molten metal is filled into a casting_mold | template using the molten metal filling apparatus of this invention, and shows a mode that the mouse | mouth was connected to the gate. 本発明の溶湯充填装置を用いて鋳型に溶湯を充填する様子を示す鋳型部分の断面図であり、エアと粒状物を吹き込む様子を示す。It is sectional drawing of the casting_mold | template part which shows a mode that a molten metal is filled into a casting_mold | template using the molten metal filling apparatus of this invention, and shows a mode that air and a granular material are blown in. 本発明の溶湯充填装置を用いて鋳型に溶湯を充填する様子を示す鋳型部分の断面図であり、エアと粒状物を吹き込んで溶湯をキャビティーに充填した様子を示す。It is sectional drawing of the casting_mold | template part which shows a mode that a mold is filled with a molten metal using the molten metal filling apparatus of this invention, and shows a mode that the molten metal was blown in and the melt was filled into the cavity. 本発明の溶湯充填装置を用いて鋳型に溶湯を充填する様子を示す鋳型部分の断面図であり、エアと粒状物を吹き込んで、粒状物で溶湯に栓をして、鋳型からマウスを外した様子を示す。It is sectional drawing of the casting_mold | template part which shows a mode that a molten metal is filled into a casting_mold | template using the molten metal filling apparatus of this invention, air and a granular material were blown, the molten metal was plugged with a granular material, and the mouse | mouth was removed from the casting_mold | template. Show the state.

以下、添付図面に基づいて本発明の一実施形態の溶湯充填装置を説明する。なお各図において、同一または相当する部材には同一の符号を付し、重複した説明は省略する。   Hereinafter, a molten metal filling apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. In the drawings, the same or corresponding members are denoted by the same reference numerals, and redundant description is omitted.

図１は、本発明の一実施の形態の溶湯充填装置１の平面概略図である。溶湯充填装置１は、鋳造ラインＡに沿って配設され、注湯機などから注湯された鋳型Ｂ内の溶湯をキャビティーに充填する。   FIG. 1 is a schematic plan view of a molten metal filling apparatus 1 according to an embodiment of the present invention. The molten metal filling device 1 is disposed along the casting line A, and fills the cavity with the molten metal in the mold B poured from a pouring machine or the like.

図２は、鋳造ラインＡに直交する方向から見た溶湯充填装置１の側面概略図である。図２に示すように、床上に溶湯充填装置１が設置され、鋳造ラインＡを搬送される鋳型Ｂに溶湯充填作業を施す。   FIG. 2 is a schematic side view of the molten metal filling apparatus 1 viewed from a direction orthogonal to the casting line A. FIG. As shown in FIG. 2, the molten metal filling device 1 is installed on the floor, and the molten metal filling operation is performed on the mold B conveyed through the casting line A.

図３は、本発明の一実施形態の溶湯充填装置１の正面概略図であり、溶湯充填装置１が鋳型Ｂに作業を施す直前の様子を示す。溶湯充填装置１は、マウス１０の水平位置を水平方向に移動させる溶湯充填装置前後部４および溶湯充填装置横行部６を架台２上に備える。架台２上に、溶湯充填装置前後部４が配置され、溶湯充填装置前後部４上に溶湯充填装置横行部６が配置される。溶湯充填装置前後部４は、マウス１０を、前後方向、すなわち、鋳造ラインＡに直交する方向に移動させる。溶湯充填装置横行部６は、マウス１０を、横方向、すなわち、鋳造ラインＡに沿った方向に移動させる。そして、マウス１０を鋳型Ｂの湯口Ｃ（図８等参照）の直上に配置する。溶湯充填装置前後部４および溶湯充填装置横行部６は、サーボモータでマウス１０を水平方向に移動させる。しかし、溶湯充填装置前後部４および溶湯充填装置横行部６がマウス１０を水平方向に移動させる手段は、サーボモータには限定されず、公知の手段でよい。   FIG. 3 is a schematic front view of the molten metal filling apparatus 1 according to an embodiment of the present invention, and shows a state immediately before the molten metal filling apparatus 1 performs an operation on the mold B. The molten metal filling device 1 includes a molten metal filling device front / rear part 4 and a molten metal filling device traversing unit 6 that move the horizontal position of the mouse 10 in the horizontal direction on the gantry 2. On the gantry 2, the molten metal filling device front and rear portion 4 is disposed, and the molten metal filling device transverse portion 6 is disposed on the molten metal filling device front and rear portion 4. The molten metal filling apparatus front and rear part 4 moves the mouse 10 in the front and rear direction, that is, in the direction orthogonal to the casting line A. The molten metal filling device traversing unit 6 moves the mouse 10 in the lateral direction, that is, the direction along the casting line A. And the mouse | mouth 10 is arrange | positioned just above the gate C (refer FIG. 8 etc.) of the casting_mold | template B. FIG. The molten metal filling apparatus front and rear part 4 and the molten metal filling apparatus transverse part 6 move the mouse 10 in the horizontal direction by a servo motor. However, the means by which the molten metal filling apparatus front and rear part 4 and the molten metal filling apparatus transverse part 6 move the mouse 10 in the horizontal direction is not limited to a servo motor, and may be a known means.

溶湯充填装置１は、さらにマウス１０を上下方向に移動させる溶湯充填装置昇降部８を、溶湯充填装置横行部６上に備える。溶湯充填装置昇降部８は、昇降部サーボモータ８ａでマウス１０を上下方向に移動させるが、マウス１０を上下方向に移動させる手段は、サーボモータには限定されず、公知の手段でよい。   The molten metal filling apparatus 1 further includes a molten metal filling apparatus lifting / lowering unit 8 that moves the mouse 10 in the vertical direction on the molten metal filling apparatus transverse section 6. The molten metal filling device lifting / lowering unit 8 moves the mouse 10 in the vertical direction by the lifting / lowering servo motor 8a. However, the means for moving the mouse 10 in the vertical direction is not limited to the servo motor, and may be a publicly known unit.

マウス１０には、上部に枠押え１４を介して加圧機器１２が接続されている。さらに、その上部に粒状物ホッパ１６が接続され、粒状物ホッパ１６からマウス１０には、耐熱性の粒状物（例えば、耐火材粒状物、砂、鋼球など）の通過する流路を形成する配管２０が連接している。粒状物ホッパ１６、加圧機器１２、マウス１０および配管２０で、鋳型中の溶湯を加圧するための加圧部を構成する。粒状物ホッパ１６に貯留された粒状物は、重力で配管２０内を通り加圧機器１２に送られ、加圧機器１２で加圧されて、配管２０内を通りマウス１０から鋳型Ｂの湯口Ｃに送られる。   A pressurizing device 12 is connected to the mouse 10 via a frame presser 14 at the top. Further, a granular material hopper 16 is connected to the upper portion thereof, and a flow path through which heat resistant granular materials (for example, refractory material granular materials, sand, steel balls, etc.) pass is formed from the granular material hopper 16 to the mouse 10. The pipe 20 is connected. The granular material hopper 16, the pressurizing device 12, the mouse 10 and the pipe 20 constitute a pressurizing unit for pressurizing the molten metal in the mold. The granular material stored in the granular material hopper 16 passes through the pipe 20 by gravity, is sent to the pressurizing device 12, is pressurized by the pressurizing device 12, passes through the pipe 20, and passes from the mouse 10 to the spout C of the mold B. Sent to.

枠押え１４は、溶湯充填装置１で鋳型Ｂに作業中に鋳型Ｂを固定する。枠押え１４は、エアシリンダとエアシリンダの先端に接続された押さえ板を備え、溶湯充填装置１で鋳型Ｂに作業中に鋳型Ｂを押さえ板（不図示）により上部から押すことにより、しっかりと押さえて固定する。枠押え１４で鋳型Ｂを固定することにより、溶湯充填装置１での作業中に鋳型Ｂがずれることがなく、マウス１０による湯口Ｃとの気密が保たれ易い。なお、枠押え１４は、エアシリンダ以外の公知の手段を備えて、鋳型Ｂを押さえてもよい。   The frame presser 14 fixes the mold B to the mold B during operation with the molten metal filling device 1. The frame retainer 14 includes an air cylinder and a press plate connected to the tip of the air cylinder, and firmly presses the mold B from the upper side with the press plate (not shown) while working on the mold B with the molten metal filling device 1. Press and fix. By fixing the mold B with the frame presser 14, the mold B is not displaced during the operation of the molten metal filling device 1, and the airtightness with the gate C by the mouse 10 is easily maintained. The frame retainer 14 may be provided with a known means other than the air cylinder to hold the mold B.

ここで、図４および図５の系統図を参照して、本発明の一実施形態の溶湯充填装置１の加圧機器１２となる加圧部について説明する。図４に示す例では、粒状物ホッパ１６からマウス１０に至る配管２０に、粒状物ホッパ１６側から第１ボールバルブ（自動開閉弁）２２、粒状物計量室２４、第２ボールバルブ（自動開閉弁）２６が配設されている。粒状物計量室２４は、所定量の粒状物が鋳型Ｂに送られるように、粒状物の量を測定する。また、マウス１０には、マウス１０から鋳型Ｂに送られるエアの圧力を測定する圧力センサ１８が設置してある。また、粒状物計量室２４には、粒状物を吹き込む際のエアを供給する粒状物吹込み配管３０が接続する。粒状物吹込み配管３０には第１電磁弁（自動開閉弁）３２が配設される。また、マウス１０上部の配管２０にマウス１０から鋳型Ｂに加圧エアを吹き込む加圧配管４０が接続する。加圧配管４０には、第２電磁弁（自動開閉弁）４２および流量調整弁４４が配設されている。 第１ボールバルブ２２、第２ボールバルブ２６、第１電磁弁３２および粒状物計量室２４とで、粒状物切出ユニット２１を構成する。   Here, with reference to the system diagram of FIG. 4 and FIG. 5, a pressurizing unit serving as the pressurizing device 12 of the molten metal filling apparatus 1 according to an embodiment of the present invention will be described. In the example shown in FIG. 4, a first ball valve (automatic opening / closing valve) 22, a granular material measuring chamber 24, a second ball valve (automatic opening / closing) from the granular material hopper 16 side to the pipe 20 extending from the granular material hopper 16 to the mouse 10. Valve) 26 is provided. The particulate matter measurement chamber 24 measures the amount of particulate matter so that a predetermined amount of particulate matter is sent to the mold B. Further, the mouse 10 is provided with a pressure sensor 18 for measuring the pressure of air sent from the mouse 10 to the mold B. Further, the granular material measuring chamber 24 is connected to a granular material blowing pipe 30 for supplying air when blowing the granular material. A first electromagnetic valve (automatic open / close valve) 32 is disposed in the granular material blowing pipe 30. Further, a pressure pipe 40 for blowing pressurized air from the mouse 10 to the mold B is connected to the pipe 20 at the top of the mouse 10. A second electromagnetic valve (automatic opening / closing valve) 42 and a flow rate adjusting valve 44 are disposed in the pressurizing pipe 40. The first ball valve 22, the second ball valve 26, the first electromagnetic valve 32 and the granular material measuring chamber 24 constitute a granular material cutting unit 21.

図５に示す加圧系統図は、粒状物切出ユニット２１の変更例２１ａを示し、図４の加圧系統図の第１ボールバルブ２２、粒状物計量室２４、第２ボールバルブ２６および第１電磁弁３２をロータリーバルブ５０に置き換えたものである。粒状物ホッパ１６とマウス１０とを接続する配管２０にロータリーバルブ５０が配設される。ロータリーバルブ５０は、粒状物切出ユニット２１ａであり、所定量の粒状物を、マウス１０を介して鋳型Ｂに吹き込む。ロータリーバルブ５０には、粒状物を吹き込む際のエアを供給する粒状物吹込みエア供給源５２が接続する。粒状物吹込みエア供給源５２は、粒状物吹込み配管３０であってもよい。他の構成は、図４に示す加圧系統図と同様である。   The pressurization system diagram shown in FIG. 5 shows a modified example 21a of the granular material cutting unit 21. The first ball valve 22, the granular material measuring chamber 24, the second ball valve 26 and the second ball valve 26 of the pressurization system diagram of FIG. 1 The electromagnetic valve 32 is replaced with a rotary valve 50. A rotary valve 50 is disposed in a pipe 20 that connects the granular material hopper 16 and the mouse 10. The rotary valve 50 is a granular material cutting unit 21 a, and blows a predetermined amount of granular material into the mold B through the mouse 10. The rotary valve 50 is connected to a granular material blowing air supply source 52 that supplies air when the granular material is blown. The granular material blowing air supply source 52 may be the granular material blowing pipe 30. The other structure is the same as that of the pressurization system diagram shown in FIG.

図６は、本発明の一実施形態の溶湯充填装置１の正面概略図であり、溶湯充填装置１が鋳型Ｂに作業をしている様子を示す。すなわち、溶湯充填装置昇降部８でマウス１０を下降させ鋳型Ｂに接続し、さらに、枠押え１４で鋳型Ｂを固定している。図７は、本発明の一実施形態の溶湯充填装置１の正面概略図であり、溶湯充填装置１が鋳型Ｂに作業をした後に、鋳型ラインＡで鋳型Ｂを搬送できる状態に戻す様子を示す。すなわち、溶湯充填装置昇降部８でマウス１０を上昇させ鋳型Ｂから離間させ、また、枠押え１４による鋳型Ｂの固定を解除している。   FIG. 6 is a schematic front view of the molten metal filling apparatus 1 according to an embodiment of the present invention, and shows the molten metal filling apparatus 1 working on the mold B. In other words, the mouse 10 is lowered by the molten metal filling device elevating unit 8 and connected to the mold B, and the mold B is fixed by the frame presser 14. FIG. 7 is a schematic front view of the molten metal filling apparatus 1 according to an embodiment of the present invention, and shows how the molten metal filling apparatus 1 returns to a state in which the mold B can be conveyed on the mold line A after working on the mold B. . That is, the mouse 10 is moved up and separated from the mold B by the molten metal filling device elevating unit 8, and the mold B is not fixed by the frame presser 14.

次に、図８〜１２をも参照して、溶湯充填装置１の動作について説明する。鋳造ラインＡにより、所定の位置に鋳型Ｂを搬送し、図８に示すように、注湯機（不図示）などで所定量の溶湯Ｆを注湯する。ここで、所定量の溶湯Ｆとは、鋳型Ｂの製品としての鋳物を鋳造するのに必要な量の溶湯であり、製品用の空間であるキャビティーＤの容積にひけの体積を加えた量の溶湯である。所定量に余裕代を含んでもよい。所定量の溶湯Ｆを注湯しても、溶湯Ｆの一部は湯道部Ｅに留まり、キャビティーＤの上部には空間が残る。   Next, the operation of the molten metal filling apparatus 1 will be described with reference to FIGS. By casting line A, mold B is conveyed to a predetermined position, and as shown in FIG. 8, a predetermined amount of molten metal F is poured by a pouring machine (not shown) or the like. Here, the predetermined amount of molten metal F is an amount of molten metal necessary for casting a casting as a product of the mold B, and is an amount obtained by adding the volume of sink to the volume of the cavity D that is a space for the product. It is a molten metal. The predetermined amount may include a margin. Even if a predetermined amount of molten metal F is poured, a part of the molten metal F remains in the runner E, and a space remains above the cavity D.

注湯が完了すると、注湯機などを鋳型Ｂ上から離れた位置に移動する。そして、溶湯充填装置前後部４および溶湯充填装置横行部６により、マウス１０を注湯済みの鋳型Ｂの湯口Ｃに移動する。なお、注湯機などを移動した後に、鋳型Ｂを移動してから、マウス１０を移動してもよい。ただし、注湯完了時から溶湯充填装置１により溶湯充填作業をするまでの間の時間は短い方が好ましい。   When pouring is completed, the pouring machine or the like is moved away from the mold B. And the mouse | mouth 10 is moved to the sprue C of the casting_mold | template B by which the molten metal filling apparatus front and rear part 4 and the molten metal filling apparatus transverse part 6 were poured. In addition, after moving a pouring machine etc., after moving the casting_mold | template B, you may move the mouse | mouth 10. FIG. However, it is preferable that the time from the completion of pouring until the molten metal filling operation is performed by the molten metal filling device 1 is short.

次に図９に示すように、マウス１０を湯口Ｃ上に移動したら、溶湯充填装置昇降部８により、マウス１０を下降させる。そして、昇降部サーボモータ８ａのトルクが所定の大きさに達したら下降終了とする。すなわち、マウス１０と湯口Ｃとが気密に接続し、かつ、鋳型Ｂやマウス１０を損傷することがない、適切な強さでマウス１０が鋳型Ｂに接するように押す。なお、昇降部サーボモータ８ａのトルクでマウス１０の下降終了を判定せず、たとえば、マウス１０が鋳物Ｂを押す力をロードセルなどの荷重センサで測定して、マウス１０の下降終了を判定してもよい。いずれの場合も、マウス１０で鋳型Ｂを押す時の押し付け反力でマウスの下降終了、すなわち、下降端を判定できる。したがって、マウス１０は適切な力で鋳型Ｂと接し、湯口Ｃとの気密は保たれる。また、枠押え１４は押さえ板（不図示）を下降させ鋳型Ｂを固定する。   Next, as shown in FIG. 9, when the mouse 10 is moved over the gate C, the mouse 10 is lowered by the molten metal filling device lifting / lowering unit 8. Then, when the torque of the lifting / lowering servomotor 8a reaches a predetermined magnitude, the lowering is finished. In other words, the mouse 10 and the gate C are connected in an airtight manner, and the mouse 10 is pressed so as to contact the mold B with an appropriate strength without damaging the mold B and the mouse 10. Note that the end of the lowering of the mouse 10 is not determined by the torque of the lifting / lowering servomotor 8a. For example, the end of the lowering of the mouse 10 is determined by measuring the force with which the mouse 10 presses the casting B with a load sensor such as a load cell. Also good. In any case, the end of the lowering of the mouse, that is, the lowering end can be determined by the pressing reaction force when pressing the mold B with the mouse 10. Therefore, the mouse 10 comes into contact with the mold B with an appropriate force, and the airtightness with the gate C is maintained. The frame retainer 14 lowers a retainer plate (not shown) to fix the mold B.

マウス１０が湯口Ｃに蓋をして気密に鋳型Ｂに接続されたならば、図１０に示すように、加圧部にて鋳型Ｂ内の溶湯Ｆにエア加圧し、また、粒状物切出ユニット２１から粒状物を鋳型Ｂ内に吹き込んで、溶湯をキャビティーに押し込む。   When the mouse 10 is lidded on the gate C and connected to the mold B in an airtight manner, as shown in FIG. 10, air is pressurized to the molten metal F in the mold B at the pressurizing section, and the granular material is cut out. A granular material is blown from the unit 21 into the mold B, and the molten metal is pushed into the cavity.

図４に示す加圧部を用いて、まず鋳型Ｂ内をエア加圧する方法を説明する。マウス１０が鋳型Ｂに接続されたときには、第１ボールバルブ２２、第２ボールバルブ２６、第１電磁弁３２および第２電磁弁４２は閉状態にある。マウス１０の下降が終了したら、第２電磁弁４２を開とし、圧力センサ１８の値が所定圧になるよう流量調整弁４４を制御しつつ、鋳型Ｂ内にエアを導入する。所定圧とは、溶湯がキャビティーＤ内の所定の高さまで押し込まれる圧力である。この加圧状態を所定時間保持する。所定時間保持することにより、キャビティーＤ内の上部に残留していた空気が砂型の鋳型Ｂの通気性のためにキャビティーＤ内から抜け、図１１に示すように、キャビティーＤ内が溶湯Ｆで満たされる。   First, a method for pressurizing the inside of the mold B with air using the pressurizing unit shown in FIG. 4 will be described. When the mouse 10 is connected to the mold B, the first ball valve 22, the second ball valve 26, the first electromagnetic valve 32, and the second electromagnetic valve 42 are in a closed state. When the lowering of the mouse 10 is completed, the second electromagnetic valve 42 is opened, and air is introduced into the mold B while controlling the flow rate adjusting valve 44 so that the value of the pressure sensor 18 becomes a predetermined pressure. The predetermined pressure is a pressure at which the molten metal is pushed to a predetermined height in the cavity D. This pressure state is held for a predetermined time. By holding for a predetermined time, the air remaining in the upper part of the cavity D escapes from the cavity D due to the air permeability of the sand mold B, and the cavity D is melted as shown in FIG. Filled with F.

続いて、鋳型Ｂ内に粒状物を吹き込む方法を説明する。マウス１０が鋳型Ｂに接続された後、第１ボールバルブ２２を開として、粒状物ホッパ１６から粒状物計量室２４に粒状物を投入する。所定時間経過後、第１ボールバルブ２２を閉とする。すなわち、粒状物計量室２４に所定量の粒状物が貯留される。なお、粒状物計量室２４で貯留されている粒状物の量、例えば重量、を計測し、所定量になるところで、第１ボールバルブ２２を閉とする信号を送信し、第１ボールバルブ２２を閉としてもよい。次に、第２ボールバルブ２６および第１電磁弁３２を開として、粒状物吹込み配管３０からエアを送る。上記のエア加圧および粒状物Ｇの吹き込みにより、図１１に示すように、湯道部Ｅで、粒状物Ｇは溶湯Ｆの最後部に堆積し、栓となる。   Next, a method for blowing the granular material into the mold B will be described. After the mouse 10 is connected to the mold B, the first ball valve 22 is opened, and the granular material is put into the granular material measuring chamber 24 from the granular material hopper 16. After a predetermined time has elapsed, the first ball valve 22 is closed. That is, a predetermined amount of granular material is stored in the granular material measuring chamber 24. The amount of particulate matter stored in the particulate matter measurement chamber 24, for example, the weight is measured, and when the predetermined amount is reached, a signal for closing the first ball valve 22 is transmitted, and the first ball valve 22 is turned on. It may be closed. Next, the second ball valve 26 and the first electromagnetic valve 32 are opened, and air is sent from the granular material blowing pipe 30. By the air pressurization and the blowing of the granular material G, the granular material G is deposited on the last part of the molten metal F in the runner E as shown in FIG.

所定時間経過し、溶湯Ｆの粒状物と接する最後部が固化し始め安定したら、第２ボールバルブ２６、第１電磁弁３２および第２電磁弁４２を閉とする。そして、溶湯充填装置１を上昇させて、図１２に示すように、マウス１０を鋳型Ｂから離間させる。   When the predetermined time has elapsed and the last part in contact with the granular material of the molten metal F has started to solidify and is stabilized, the second ball valve 26, the first electromagnetic valve 32 and the second electromagnetic valve 42 are closed. And the molten metal filling apparatus 1 is raised and the mouse | mouth 10 is spaced apart from the casting_mold | template B as shown in FIG.

図５の加圧系統図に示す粒状物切出ユニット２１ａを用いる場合には、次のように動作する。マウス１０が鋳型Ｂに接続されたときには、ロータリーバルブ５０は停止、第２電磁弁４２は閉とする。マウス１０が下降終了となったら、第２電磁弁４２を開とし、圧力センサ１８の値が所定圧になるよう流量調整弁４４を制御しつつ、鋳型Ｂ内にエアを導入する。また、ロータリーバルブ５０を所定時間回転させ、エア供給源５２からエアを供給して、所定量の粒状物Ｇを鋳型Ｆに吹き込む。その後、ロータリーバルブ５０を停止する。よって、所定量の粒状物Ｇが鋳型Ｂに吹き込まれる。そして、溶湯ＦがキャビティーＤ内の所定の高さまで押し込まれる。所定時間経過し、溶湯Ｆの粒状物と接する最後部が固化し始め安定したら、第２電磁弁４２を停止する。そして、溶湯充填装置１を上昇させて、マウス１０を鋳型Ｂから離間させる。   When the granular material cutting unit 21a shown in the pressurization system diagram of FIG. 5 is used, it operates as follows. When the mouse 10 is connected to the mold B, the rotary valve 50 is stopped and the second electromagnetic valve 42 is closed. When the mouse 10 is lowered, the second electromagnetic valve 42 is opened, and air is introduced into the mold B while controlling the flow rate adjusting valve 44 so that the value of the pressure sensor 18 becomes a predetermined pressure. Further, the rotary valve 50 is rotated for a predetermined time, air is supplied from the air supply source 52, and a predetermined amount of granular material G is blown into the mold F. Thereafter, the rotary valve 50 is stopped. Therefore, a predetermined amount of granular material G is blown into the mold B. Then, the molten metal F is pushed to a predetermined height in the cavity D. When the predetermined time has elapsed and the last part in contact with the granular material of the molten metal F starts to solidify and is stabilized, the second electromagnetic valve 42 is stopped. Then, the molten metal filling apparatus 1 is raised and the mouse 10 is separated from the mold B.

上述のように、鋳型Ｂに溶湯Ｆを注入後、すぐにマウス１０を湯口Ｃに気密に接続し、エアで加圧し粒状物を充填するので、溶湯Ｆが固化し始める前に、溶湯ＦをキャビティーＤ内に充填することができる。   As described above, immediately after pouring the molten metal F into the mold B, the mouse 10 is airtightly connected to the gate C and pressurized with air to fill the granular material. Therefore, before the molten metal F starts to solidify, The cavity D can be filled.

溶湯ＦをキャビティーＤ内に充填した後は、湯道部Ｅに投入された粒状物Ｇが溶湯Ｆの栓となる。よって、溶湯Ｆの湯道部Ｅ等への戻りを防止できる。したがって、迅速かつ確実に溶湯ＦをキャビティーＤに充填でき、粒状物Ｇが溶湯Ｆの栓となるので、溶湯Ｆの戻りを防止できる。したがって、鋳型をばらした後の鋳物が湯道部や湯口部に相当する部分に発生しなくなる。   After the molten metal F is filled in the cavity D, the granular material G introduced into the runner E becomes a plug of the molten metal F. Therefore, the return of the molten metal F to the runner E can be prevented. Therefore, the molten metal F can be quickly and surely filled into the cavity D, and the granular material G becomes a stopper of the molten metal F, so that the molten metal F can be prevented from returning. Therefore, the casting after separating the mold does not occur in the portion corresponding to the runner portion or the gate portion.

また、粒状物Ｇで栓をした後の鋳型Ｂは、溶湯充填装置１から搬出して、溶湯Ｆを固化させることができる。すなわち、溶湯充填装置１では、すぐに次の鋳型Ｂに作業をすることができる。   Moreover, the casting_mold | template B after plugging with the granular material G can be carried out from the molten metal filling apparatus 1, and the molten metal F can be solidified. That is, the molten metal filling apparatus 1 can immediately work on the next mold B.

さらに、注湯機とは別の溶湯充填装置１で注湯後の溶湯ＦをキャビティーＤに充填するので、溶湯充填装置１での作業中に、注湯機で鋳造ラインＡ上の別の鋳型Ｂに注湯することができる。すなわち、鋳造工程を効率化することができる。   Further, since the molten metal F after pouring is filled into the cavity D by the molten metal filling device 1 different from the pouring device, another operation on the casting line A is performed by the pouring machine during the operation of the molten metal filling device 1. The mold B can be poured. That is, the casting process can be made efficient.

なお、エアによる加圧と粒状物の充填を同時に行うことで、加圧力と粒状物が吹き込まれる力との両方で溶湯ＦをキャビティーＤ内に充填するので、溶湯ＦをキャビティーＤ内に迅速かつ確実に充填することができる。また、エアによる加圧を粒状物の充填より先に行うと、充填物による溶湯Ｆの冷却が防止され、迅速に、かつ冷却による溶湯の固化が生じないので容易に、溶湯ＦをキャビティーＤ内に充填し易くなる。   In addition, since the molten metal F is filled in the cavity D with both the pressurizing force and the force of blowing the granular material by simultaneously performing pressurization with air and filling of the granular material, the molten metal F is filled in the cavity D. It can be filled quickly and reliably. Further, when the air is pressurized before the filling of the granular material, the molten metal F is prevented from being cooled by the filled material, and since the molten metal does not solidify quickly and easily, the molten metal F can be easily removed from the cavity D. It becomes easy to fill the inside.

これまでの説明では、鋳型に注湯した溶湯をキャビティーに押し込む際にはエア加圧するものとしたが、エア(空気)以外の他のガスでもよい。また、エアで粒状物を鋳型に吹き込むものとして説明したが、他のガスで吹き込んでもよい。   In the above description, when the molten metal poured into the mold is pushed into the cavity, the air is pressurized. However, other gases other than air (air) may be used. Moreover, although it demonstrated as what blows a granular material into a casting_mold | template with air, you may blow in with other gas.

また、これまでの説明では省略したが、溶湯充填装置前後部４、溶湯充填装置横行部６、溶湯充填装置昇降部８、枠押え１４、加圧機器１２（粒状物切出ユニット２１あるいは自動弁や調整弁等）の操作は、自動的に、または、ユーザ入力に従って制御装置（不図示）で行うようにしてもよい。   Although omitted in the description so far, the molten metal filling device front and rear portion 4, the molten metal filling device transverse portion 6, the molten metal filling device lifting and lowering portion 8, the frame retainer 14, the pressurizing device 12 (the granular material cutting unit 21 or the automatic valve). Or a control valve) may be performed automatically or by a control device (not shown) according to a user input.

なお、本発明は特定の望ましい実施の形態に限定されず、特許請求の範囲に記載された技術的思想の範囲内で、当業者によって多様な応用が可能である。   The present invention is not limited to specific preferred embodiments, and various applications are possible by those skilled in the art within the scope of the technical idea described in the claims.

１ 溶湯充填装置
２ 架台
４ 溶湯充填装置前後部
６ 溶湯充填装置横行部
８ 溶湯充填装置昇降部
８ａ 昇降部サーボモータ
１０ マウス
１２ 加圧機器
１４ 枠押え
１６ 粒状物ホッパ
１８ 圧力センサ
２０ 配管
２１ 粒状物切出ユニット
２１ａ 粒状物切出ユニット
２２ 第１ボールバルブ(自動開閉弁)
２４ 粒状物計量
２６ 第２ボールバルブ(自動開閉弁)
３０ 粒状物吹込み配管
３２ 第１電磁弁(自動開閉弁)
４０ 加圧配管
４２ 第２電磁弁 (自動開閉弁)
４４ 流量調整弁
５０ ロータリーバルブ
Ａ 鋳造ライン
Ｂ 鋳型
Ｃ 湯口
Ｄ キャビティー
Ｅ 湯道部
Ｆ 溶湯
Ｇ 粒状物 DESCRIPTION OF SYMBOLS 1 Molten filling apparatus 2 Base 4 Molten filling apparatus front-and-back part 6 Molten filling apparatus transverse part 8 Molten filling apparatus raising / lowering part 8a Lifting part servomotor 10 Mouse 12 Pressurizing apparatus 14 Frame holder 16 Granule hopper 18 Pressure sensor 20 Piping 21 Granule Cutting unit 21a Granular material cutting unit 22 First ball valve (automatic open / close valve)
24 Granules measurement 26 Second ball valve (automatic open / close valve)
30 Granular blow pipe 32 First solenoid valve (automatic open / close valve)
40 Pressurized piping 42 Second solenoid valve (automatic open / close valve)
44 Flow control valve 50 Rotary valve A Casting line B Mold C Pouring gate D Cavity E Runway F Molten metal G Granular material

Claims (4)

注湯した鋳型に充填される耐熱性の粒状物を収容する粒状物ホッパと；
前記鋳型の湯口と気密に接続し、前記粒状物およびガスを前記湯口に送り込むマウスと；
前記粒状物ホッパから前記粒状物を所定量計量して前記マウスに送る粒状物切出ユニットと；
前記粒状物ホッパと前記マウスとを接続する配管に所定圧力のエアを導入する自動弁と、該エアの吹き込み量を調整する流量調整弁とを備える；
溶湯充填装置。 A granular hopper containing heat-resistant granular material filled in a poured mold;
A mouse that is airtightly connected to the gate of the mold and sends the particulate matter and gas to the gate;
A granular material cutting unit for weighing a predetermined amount of the granular material from the granular material hopper and sending it to the mouse;
An automatic valve for introducing air of a predetermined pressure into a pipe connecting the granular material hopper and the mouse, and a flow rate adjusting valve for adjusting the amount of air blown;
Molten metal filling device. 前記マウスを昇降させる溶湯充填装置昇降部と、前記マウスを水平方向で移動させる溶湯充填装置前後部と溶湯充填装置横行部とを備える；
請求項１記載の溶湯充填装置。 A molten metal filling device lifting and lowering unit for moving the mouse up and down, a molten metal filling device front and rear portion for moving the mouse in a horizontal direction, and a molten metal filling device traversing unit;
The molten metal filling apparatus according to claim 1. 前記マウスの下降端を押し付け反力により決定する；
請求項１または２記載の溶湯充填装置。 Pressing the lower end of the mouse and determining by reaction force;
The molten metal filling device according to claim 1 or 2. 請求項１ないし３のいずれかに記載の溶湯充填装置を用いて、鋳型に注湯後に、湯口から圧縮ガスおよび耐熱性の粒状物を送り溶湯を所望のキャビティーに充填し、耐熱性の粒状物を用いて該所望のキャビティーから溶湯が戻らないようにする；
溶湯充填方法。 Using the molten metal filling apparatus according to any one of claims 1 to 3, after pouring into a mold, a compressed gas and a heat-resistant granular material are fed from a pouring gate, and the molten metal is filled into a desired cavity, so that the heat-resistant granular material is obtained. Using a material to prevent the melt from returning from the desired cavity;
Melt filling method.
JP2013124423A 2013-06-13 2013-06-13 Molten metal filling device and method Pending JP2015000404A (en)

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