JPH059748U - Molten metal cutoff mechanism of low pressure casting equipment - Google Patents
Molten metal cutoff mechanism of low pressure casting equipmentInfo
- Publication number
- JPH059748U JPH059748U JP6647691U JP6647691U JPH059748U JP H059748 U JPH059748 U JP H059748U JP 6647691 U JP6647691 U JP 6647691U JP 6647691 U JP6647691 U JP 6647691U JP H059748 U JPH059748 U JP H059748U
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- water supply
- molten metal
- mold
- guide cylinder
- 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.)
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Abstract
(57)【要約】
【目的】 溶湯遮断機構の摺動部における湯洩れを防止
すると共に、該遮断機構内に溶湯が残留しないようにす
る。
【構成】 溶湯遮断機構１３または２８を、内空部の横
断面形状が円形で一端が盲孔にされた案内筒１４または
案内孔２９と、該案内筒１４または案内孔２９内に遊嵌
挿入されて摺動回転自在な丸棒状の遮断弁１８とで構成
し、該遮断弁１８には、金型キャビティ７と給湯管４と
を連通可能な給湯通路２２と、該給湯通路２２内の溶湯
を上記給湯管４へ排出可能な排湯通路２３とを設ける。
(57) [Summary] [Purpose] To prevent molten metal from leaking at the sliding portion of the molten metal cutoff mechanism and prevent the molten metal from remaining in the cutoff mechanism. [Structure] A molten metal blocking mechanism 13 or 28 is inserted into the guide cylinder 14 or the guide hole 29, and the guide cylinder 14 or the guide hole 29, in which the cross-sectional shape of the inner space is circular and one end is a blind hole. A shutoff valve 18 in the form of a rod that is slidably rotatable. The shutoff valve 18 has a hot water supply passage 22 that allows the mold cavity 7 and the hot water supply pipe 4 to communicate with each other, and the molten metal in the hot water supply passage 22. And a hot water discharge passage 23 through which hot water can be discharged to the hot water supply pipe 4.
Description
【０００１】[0001]
本考案は、保持炉内の溶湯の表面に圧縮空気を供給して圧力をかけ、給湯管を 介して金型に溶湯を充填せしめる低圧鋳造装置に関し、更に詳しくは、該低圧鋳 造装置における溶湯遮断機構に関する。 The present invention supplies compressed air to the surface of the molten metal in the holding furnace to apply pressure to the hot water supply pipe. The present invention relates to a low-pressure casting apparatus for filling a mold with molten metal through The present invention relates to a molten metal shutoff mechanism in a manufacturing apparatus.
【０００２】[0002]
従来の低圧鋳造装置では、保持炉内の溶湯の表面に圧縮空気を供給して圧力を かけ、金型に溶湯を充填したのち金型内の溶湯が凝固するまで、上記加圧状態を 保持する必要があり、従って、鋳造作業の１サイクル時間が長くなる問題があっ た。このため、本出願人は、実公平２−１６８４６号公報に開示する如く、金型 と給湯管との間に、案内筒とスライドゲートとからなる溶湯遮断機構を設け、金 型に注湯後、該溶湯遮断機構によって金型の給湯口を閉鎖し、金型内の溶湯の凝 固を待つことなく、注湯済の金型を保持炉から移動させると共に、給湯管には次 の空の金型を接続させるようにしている。 ところで、上記溶湯遮断機構では、案内筒内空部の横断面及びスライドゲートの 横断面はそれぞれ矩形を成しているが、このような両者の摺動部の寸法精度を上 げることは加工技術上極めて困難であり、この部分での湯洩れを確実に防止する ことができなかった。本考案は、このような事情に鑑みてなされたものであり、 摺動部での湯洩れを確実に防止することができる溶湯遮断機構を提供することを 目的としている。本考案はまた、上記溶湯遮断機構によって金型の給湯口を閉鎖 した際、該遮断機構内に溶湯が残留して目詰りを起こすことがないようにするこ とを目的としている。 In conventional low pressure casting equipment, compressed air is supplied to the surface of the molten metal in the holding furnace to increase the pressure. After filling the mold with molten metal, the above pressurized state is maintained until the molten metal in the mold solidifies. It has to be held, thus increasing the cycle time of the casting operation. It was Therefore, the applicant of the present invention, as disclosed in Japanese Utility Model Publication No. 2-16846, has a mold Between the hot water supply pipe and the hot water supply pipe, a molten metal shutoff mechanism consisting of a guide tube and a slide gate is installed, After pouring the molten metal into the mold, the molten metal shut-off mechanism closes the hot water inlet of the mold to allow the molten metal in the mold to coagulate. Without waiting for it to solidify, move the poured mold from the holding furnace and I am trying to connect the empty mold of. By the way, in the above-mentioned molten metal shutoff mechanism, the cross section of the empty space inside the guide cylinder and the slide gate Each cross section is rectangular, but the dimensional accuracy of such sliding parts is improved. It is extremely difficult to remove it due to the processing technology, and it is possible to prevent the leakage of hot water in this part. I couldn't. The present invention has been made in view of such circumstances. It is an object of the present invention to provide a molten metal shutoff mechanism capable of reliably preventing leakage of molten metal at sliding parts. Has an aim. The present invention also closes the hot water supply port of the mold by the molten metal shutoff mechanism. In this case, the molten metal should not remain in the shutoff mechanism and cause clogging. And is intended.
【０００３】[0003]
本考案は、上記の目的を達成するため、溶湯遮断機構を、円筒形の案内筒と、 該案内筒内に遊嵌されて摺動回転自在な丸棒状の遮断弁とから構成すること９要 旨としている。すなわち、本考案は、第一に、保持炉内の溶湯の表面に圧縮空気 を供給して圧力をかけ、給湯管を介して金型に溶湯を充填せしめる低圧鋳造装置 における、上記金型と給湯管との連結部に配設された溶湯遮断機構であっ て、 該溶湯遮断機構が、上記金型の下面中央部に水平方向に固着された円筒形の案内 筒と、該案内筒内に遊嵌挿入されて、摺動回転自在にされた丸棒状の遮断弁とか ら成り、上記案内筒には、上記金型の給湯口に連通する上側開口と上記給湯管に 連通する９下側開口とが設けられており、上記遮断弁には、その軸線に直交して 貫通穿設され、一端が上記案内筒の上側開口に連通可能にされていると共に他端 が該案内筒の下側開口に連通可能にされた給湯通路と、該給湯通路が水平位置に ある時、上端が該給湯通路に連通すると共に、下端が上記案内筒の下側開口に連 通可能にされた排湯通路とが設けられていることを特徴としている。 本考案は、第二に、保持炉内の溶湯の表面に圧縮空気を供給して圧力をかけ、給 湯管を介して金型に溶湯を充填せしめる低圧鋳造装置における、上記金型の給湯 口の途中に配設された溶湯遮断機構であって、該溶湯遮断機構が、上記金型の給 湯口と交差して水平方向に穿設された、横断面が円形で盲孔状の案内孔と、該案 内孔内に遊嵌挿入されて、垂直回動自在にされた丸棒状の遮断弁とから成り、上 記遮断弁には、その軸線に直交して貫通穿設され、一端が上記給湯口の上側開口 に連通可能にされていると共に他端が該給湯口の下側開口に連通可能にされた給 湯通路と、該給湯通路が水平位置にある時、上端が該給湯通路に連通すると共 に、下端が上記給湯口の下側開口に連通可能にされた排湯通路とが設けられてい ることを特徴としている。 In order to achieve the above-mentioned object, the present invention provides a molten metal blocking mechanism with a cylindrical guide tube, It should be composed of a round rod-shaped shut-off valve that is slidably rotatable in the guide cylinder. It is intended. That is, the present invention is, firstly, to apply compressed air to the surface of the molten metal in the holding furnace. Low-pressure casting equipment that supplies molten metal to apply pressure to fill the mold with molten metal through the hot water supply pipe In the molten metal shutoff mechanism arranged at the connecting portion between the mold and the hot water supply pipe in The molten metal shutoff mechanism is a cylindrical guide fixed horizontally to the center of the lower surface of the mold. A cylinder and a shut-off valve in the shape of a round bar that is slidably and freely inserted into the guide cylinder. The guide cylinder has an upper opening communicating with the hot water supply port of the mold and the hot water supply pipe. 9 lower openings communicating with each other are provided, and the shut-off valve is provided at right angles to its axis. It is pierced through, one end is made to be able to communicate with the upper opening of the guide cylinder, and the other end is And the hot water supply passage that can communicate with the lower opening of the guide tube and the hot water supply passage in a horizontal position. At one time, the upper end communicates with the hot water supply passage and the lower end communicates with the lower opening of the guide tube. It is characterized in that a hot water discharge passage is provided. Secondly, the present invention supplies compressed air to the surface of the molten metal in the holding furnace to apply pressure to supply the compressed air. Hot water supply for the mold in a low-pressure casting apparatus that fills the mold with molten metal through a hot water pipe A molten metal cutoff mechanism disposed in the middle of the mouth, wherein the molten metal cutoff mechanism supplies the mold. A guide hole having a circular cross section and a blind hole formed in a horizontal direction so as to intersect with the sprue, It consists of a round rod-shaped shutoff valve that is freely inserted into the inner hole and is vertically rotatable. The shutoff valve is formed by penetrating perpendicularly to the axis of the shutoff valve, one end of which is the upper opening of the hot water supply port. And the other end of the hot water supply port is connected to the lower opening of the hot water supply port. When the hot water passage and the hot water supply passage are in the horizontal position, the upper end communicates with the hot water supply passage. Has a hot water discharge passage whose lower end can communicate with the lower opening of the hot water supply port. It is characterized by that.
【０００４】[0004]
【実施例１】 以下、本考案を一実施例に基いて詳細に説明する。 図面は、本考案に係る溶湯遮断機構を取付けた低圧鋳造装置の縦断面図で、図１ は給湯時の状態を示すものであり、図２は排湯時の状態を示すものである。 図において、１は金属溶湯Ｍを収容したるつぼ、２は該溶湯を加熱保温する保持 炉、３は保持炉２の上部開口を密閉する炉蓋であり、該炉蓋３の中央部からるつ ぼ１内へ給湯管４が垂設されている。そして図示しない圧縮空気源から保持炉２ 内へ圧縮空気が供給されるように成してある。上記炉蓋３の上面には架台５が固 着されており、該架台５上には、図示しない手段により、昇降及び水平移動可能 にされた水平割金型６が切離し可能に載置されている。該金型６には、キャビテ ィ７と給湯口８とが形成されている。なお、上記金型６の上部には、加圧シリン ダ９が下向きに取り付けられており、該シリンダ９のピストンロッド１１の先端 は、上記キャビティ７における湯だまり部１２内へ突出可能にされている。 上記金型６の下面中央部には、溶湯遮断機構１３が取付けられている。該溶湯遮 断機構１３において、１４は一端開口部を密閉されると共に、水平方向を指向す る円筒形の案内筒であり、該案内筒１４は、上部フランジ１５を介して上記金型 ６の下面に固着されている。なお、該案内筒１４における下部フランジ１７は、 上記金型６が上記架台５上に載置されたとき、上記炉蓋３の上面に密接するよう に設計されている。 上記案内筒１４内には、丸棒状の遮断弁１８が遊嵌挿入されている。該遮断弁１ ８の基端側は、図示しない回転アクチュエータに連結しており、該アクチュエー タの駆動により、遮断弁１８は垂直面上を９０度の範囲内で往復して摺動回転可 能にされている。 上記案内筒１４には上記金型６における給湯口８の下端開口に連通する上側開口 １９と、上記給湯管４の上端開口に連通する下側開口２１とが設けられている。 また、上記遮断弁１８には、その軸線に直交して給湯通路２２が貫通穿設されて おり、該給湯通路２２の一端開口は上記案内筒１４の上側開口１９に連通可能に されていると共に、その他端開口は該案内筒１４の下側開口２１に連通可能にさ れている。更に、該遮断弁１８には、図２に示す如く、上記給湯通路２２が水平 位置にある時、上端が該給湯通路２２に連通すると共に、下端が上記案内筒１４ の下側開口２１に連通可能にされた排湯通路２３が穿設されている。[Example 1] Hereinafter, the present invention will be described in detail based on an embodiment. 1 is a vertical cross-sectional view of a low pressure casting apparatus equipped with a molten metal shutoff mechanism according to the present invention. Shows the state during hot water supply, and FIG. 2 shows the state during hot water discharge. In the figure, 1 is a crucible containing a molten metal M, and 2 is a holding for heating and keeping the molten metal warm. The furnace 3 is a furnace lid for sealing the upper opening of the holding furnace 2. A hot water supply pipe 4 is vertically installed in the bowl 1. Then, from the compressed air source (not shown) to the holding furnace 2 The compressed air is supplied into the inside. A pedestal 5 is fixed on the upper surface of the furnace lid 3. It is attached and can be moved vertically and horizontally on the gantry 5 by means not shown. The horizontal split mold 6 is placed so that it can be separated. The mold 6 has a cavite A hot water supply port 8 and a hot water supply port 8 are formed. In addition, a pressure cylinder is provided on the upper part of the mold 6. Da 9 is mounted downward, and the tip of the piston rod 11 of the cylinder 9 is attached. Can project into the pool 12 of the cavity 7. A melt blocking mechanism 13 is attached to the center of the lower surface of the mold 6. The molten metal interception In the disconnecting mechanism 13, 14 has one end hermetically closed, and is oriented in the horizontal direction. Is a cylindrical guide tube, and the guide tube 14 is provided with an upper flange 15 through which the mold It is fixed to the lower surface of 6. The lower flange 17 of the guide tube 14 is When the mold 6 is placed on the pedestal 5, it should be in close contact with the upper surface of the furnace lid 3. Is designed to. A round bar-shaped shutoff valve 18 is loosely fitted and inserted in the guide cylinder 14. The shutoff valve 1 The base end side of 8 is connected to a rotary actuator (not shown). The shut-off valve 18 can be slidably rotated by reciprocating within a range of 90 degrees on a vertical surface by driving the actuator. It is enabled. The guide cylinder 14 has an upper opening communicating with the lower end opening of the hot water inlet 8 of the mold 6. A lower opening 21 communicating with the upper end opening of the hot water supply pipe 4 is provided. In addition, a hot water supply passage 22 is formed through the cutoff valve 18 at right angles to its axis. The one end opening of the hot water supply passage 22 can communicate with the upper opening 19 of the guide cylinder 14. In addition, the other end opening can communicate with the lower opening 21 of the guide tube 14. Has been. Further, as shown in FIG. 2, the shutoff valve 18 is provided with the hot water supply passage 22 horizontally. When in the position, the upper end communicates with the hot water supply passage 22 and the lower end communicates with the guide tube 14 A hot water discharge passage 23 is provided to be communicated with the lower opening 21.
【０００５】[0005]
次に上記のように構成された低圧鋳造装置の作用について説明する 図１の状態、すなわち溶湯遮断機構１３における遮断弁１８の給湯通路２２を垂 直方向に位置させると共に、加圧シリンダ９のピストンロッド１１を縮引させた 状態で、保持炉２内へ圧縮空気を供給してるつぼ１内の溶湯Ｍの上面に圧力をか けると、該溶湯Ｍは、給湯管４、案内筒１４の下側開口２１、遮断弁１８の給湯 通路２２、案内筒１４の上側開口１９、および金型６の給湯口８を順に通過して 上昇せしめられてキャビティ７内へ充填される。注湯完了後、図示しない回転ア クチュエータを駆動して、上記遮断弁１８を時計方向へ９０度垂直回動させる と、上記給湯管４と給湯口８との連通が遮断されると共に、上記給湯通路２２が 排湯通路２３を介して給湯管４と連通する。ここで保持炉２内の圧力を解除する と、給湯通路２２内の溶湯Ｍは排湯通路２３、案内筒１４の下側開口２１および 給湯管４を通ってるつぼ１内へ排出されると共に、キャビティ７および給湯口８ 内の溶湯Ｍはそのまま保持される。しかる後、上記加圧シリンダ９のピストンロ ッド１１を上記キャビティ７の湯だまり部１２内へ突出させてキャビティ７内の 溶湯Ｍを加圧する。次いで、注湯された金型６を上昇させると共に水平方向に移 動させた後、キャビティ７が空になっている他の金型６を炉蓋３の真上に移動さ せて下降させ、架台５上に載置する。以上の諸工程を１サイクルとして同じサイ クルを繰り返すことにより、多数の金型に短時間で溶湯を鋳込むものである。 Next, the operation of the low pressure casting apparatus configured as described above will be described. In the state shown in FIG. 1, that is, the hot water supply passage 22 of the shutoff valve 18 in the molten metal shutoff mechanism 13 is suspended. The piston rod 11 of the pressurizing cylinder 9 was contracted while being positioned in the vertical direction. In this state, pressure is applied to the upper surface of the molten metal M in the crucible 1 by supplying compressed air into the holding furnace 2. When melted, the molten metal M is supplied to the hot water supply pipe 4, the lower opening 21 of the guide cylinder 14, and the shutoff valve 18. Pass through the passage 22, the upper opening 19 of the guide cylinder 14, and the hot water supply port 8 of the mold 6 in order. It is raised and filled in the cavity 7. After the pouring is completed, turn the rotary Drive the actuator and rotate the shutoff valve 18 vertically by 90 degrees in the clockwise direction. With this, communication between the hot water supply pipe 4 and the hot water supply port 8 is cut off, and the hot water supply passage 22 is opened. It communicates with the hot water supply pipe 4 through the hot water discharge passage 23. Here, the pressure in the holding furnace 2 is released. The molten metal M in the hot water supply passage 22 is discharged from the hot water discharge passage 23, the lower opening 21 of the guide tube 14 and It is discharged into the crucible 1 through the hot water supply pipe 4, and the cavity 7 and the hot water supply port 8 are provided. The molten metal M inside is kept as it is. Then, the piston cylinder of the pressure cylinder 9 is The lid 11 is projected into the basin 12 of the cavity 7 so that The molten metal M is pressurized. Then, the poured mold 6 is raised and moved horizontally. After moving, another mold 6 with an empty cavity 7 is moved right above the furnace lid 3. Then, it is lowered and placed on the gantry 5. The above steps are regarded as one cycle The molten metal is cast into a large number of molds in a short time by repeating the cycle.
【０００６】[0006]
【実施例２】 次に、本考案の他の実施例を図３を参照して説明する。 なお、上記実施例１と同じ部材には、同じ番号を付して説明する。 図３において、２６は図示しない手段により、昇降及び水平移動可能にされてい ると共に、内部にキャビティ７と給湯口２７とを形成した水平割金型であり、該 金型２６は、保持炉２の炉蓋３上に、その給湯口２７を給湯管４に連通させ、か つ切離し可能に載置されている。該給湯口２７の途中には、溶湯遮断機構２８が 設けられている。該溶湯遮断機構２８において、２９は上記金型２６内に上記給 湯口２７と交差して水平方向に穿設された案内孔であり、該案内孔２９は、その 横断面が円形にされていると共に、その先端側が盲孔にされている。該案内孔２ ９内には、丸棒状の遮断弁１８が遊嵌挿入されている。該遮断弁１８の基端側 は、図示しない回転アクチュエータに連結しており、該アクチュエータの駆動に より、遮断弁１８は垂直面上を９０度の範囲内で往復して摺動回転可能にされて いる。該遮断弁１８には、その軸線に直交して給湯通路２２が貫通穿設されてお り、該給湯通路２２の一端開口は上記給湯口２７の上側開口に、またその他端開 口は該給湯口２７の下側開口に、それぞれ連通可能にされている。更に、該遮断 弁１８に は、上記給湯通路２２が水平位置にある時、上端が該給湯通路２２に 連通すると共に、下端が上記給湯口２７の下側開口に連通可能にされた排湯通路 ２３が穿設されている なお、このように構成された溶湯遮断機構２８の作用は、上記実施例１の場合と 同じであるため、説明を省略する。Example 2 Next, another embodiment of the present invention will be described with reference to FIG. The same members as those in the first embodiment will be described with the same reference numerals. In FIG. 3, reference numeral 26 designates a means for raising and lowering and horizontal movement by means not shown. And a horizontal split mold having a cavity 7 and a hot water supply port 27 formed therein. The mold 26 has a hot water supply port 27 communicating with the hot water supply pipe 4 on the furnace lid 3 of the holding furnace 2. It is placed so that it can be separated. A molten metal blocking mechanism 28 is provided in the middle of the hot water supply port 27. It is provided. In the molten metal cutoff mechanism 28, 29 is the above-mentioned supply into the mold 26. The guide hole is a horizontal guide hole that intersects the gate 27, and the guide hole 29 is The cross section has a circular shape, and the tip side thereof is a blind hole. The guide hole 2 A round bar-shaped shutoff valve 18 is loosely fitted and inserted in the valve 9. Base end side of the shutoff valve 18 Is connected to a rotary actuator (not shown) to drive the actuator. Therefore, the shut-off valve 18 is slidably rotatable back and forth within a range of 90 degrees on the vertical plane. There is. A hot water supply passage 22 is formed through the cutoff valve 18 at right angles to its axis. The opening of one end of the hot water supply passage 22 is at the upper opening of the hot water supply port 27, and the other end is open. The mouths can be communicated with the lower openings of the hot water supply port 27, respectively. Furthermore, the cutoff When the hot water supply passage 22 is in the horizontal position, the valve 18 has an upper end in the hot water supply passage 22. A hot water discharge passage that communicates with the lower end of the hot water supply port 27 23 is drilled The operation of the molten metal blocking mechanism 28 thus configured is the same as that of the first embodiment. Since it is the same, the description is omitted.
【０００７】[0007]
上記の説明から明らかなように、本考案は溶湯遮断機構における案内筒または 案内孔の内空部の横断面形状を円形にすると共に、これに遊嵌挿入される遮断弁 を丸棒状にしたから、これら部材の寸法精度を上げることが容易になる。その結 果、両者の摺動部間の隙間を最小限とすることができ、湯洩れを確実に防止する ことができる。また本考案では、上記遮断弁内に、給湯通路の他に排湯通路を設 けたから、溶湯遮断時、上記給湯通路内の溶湯は排湯通路から排出され、給湯通 路の目詰りが防止される。 As is clear from the above description, the present invention provides a guide tube or The cross-sectional shape of the inner space of the guide hole is circular, and the shut-off valve is loosely inserted into this. The round bar shape facilitates increasing the dimensional accuracy of these members. That conclusion As a result, the gap between the sliding parts of both can be minimized and the leakage of molten metal can be reliably prevented. be able to. Further, in the present invention, a hot water discharge passage is provided in the shutoff valve in addition to the hot water supply passage. When the molten metal is shut off, the molten metal in the hot water supply passage is discharged from the drainage passage, Road clogging is prevented.
【図１】本考案に係る溶湯遮断機構を取付けた低圧鋳造
装置の縦断面図で、給湯時の状態を示すものである。FIG. 1 is a vertical cross-sectional view of a low pressure casting apparatus equipped with a molten metal shutoff mechanism according to the present invention, showing a state during hot water supply.
【図２】本考案に係る溶湯遮断機構を取付けた低圧鋳造
装置の縦断面図で、排湯時の状態を示すものである。FIG. 2 is a vertical cross-sectional view of a low-pressure casting apparatus equipped with a molten metal shutoff mechanism according to the present invention, showing a state when hot water is discharged.
【図３】本考案の他の実施例を示す縦断面図である。FIG. 3 is a vertical cross-sectional view showing another embodiment of the present invention.
２ 保持炉 ４ 給湯管 ６ 金型 ８ 給湯口 １３ 溶湯遮断機構 １４ 案内筒 １８ 遮断弁 １９ 上側開口 ２１ 下側開口 ２２ 給湯通路 ２３ 排湯通路 ２６ 金型 ２７ 給湯口 ２８ 溶湯遮断機構 ２９ 案内孔 2 holding furnace 4 hot water supply pipe 6 mold 8 hot water inlet 13 Molten metal blocking mechanism 14 Guide tube 18 Shut-off valve 19 Upper opening 21 Lower opening 22 Hot water supply passage 23 Hot water discharge passage 26 mold 27 Hot water inlet 28 Molten metal blocking mechanism 29 Guide hole
Claims (2)
給して圧力をかけ、給湯管４を介して金型６に溶湯を充
填せしめる低圧鋳造装置における、上記金型６と給湯管
４との連結部に配設された溶湯遮断機構１３であって、
該溶湯遮断機構１３が、上記金型６の下面中央部に、一
端開口を密閉されて水平方向に固着された円筒形の案内
筒１４と、該案内筒１４内に遊嵌挿入されて、摺動回転
自在にされた丸棒状の遮断弁１８とから成り、上記案内
筒１４には、上記金型６の給湯口８に連通する上側開口
１９と上記給湯管４に連通する下側開口２１とが設けら
れており、上記遮断弁１８には、その軸線に直交して貫
通穿設され、一端が上記案内筒１４の上側開口１９に連
通可能にされていると共に他端が該案内筒１４の下側開
口２１に連通可能にされた給湯通路２２と、該給湯通路
２２が水平位置にある時、上端が該給湯通路２２に連通
すると共に、下端が上記案内筒１４の下側開口２１に連
通可能にされた排湯通路２３とが設けられていることを
特徴とする、低圧鋳造装置の溶湯遮断機構。1. The mold 6 and the hot water supply pipe in a low-pressure casting apparatus for supplying compressed air to the surface of the molten metal in the holding furnace 2 to apply pressure to fill the mold 6 with the molten metal through the hot water supply pipe 4. 4 is a molten metal cutoff mechanism 13 arranged at the connecting portion with 4,
The molten metal blocking mechanism 13 is a cylindrical guide cylinder 14 whose one end is hermetically closed and fixed in the horizontal direction at the center of the lower surface of the die 6, and is loosely inserted into the guide cylinder 14 for sliding. The guide cylinder 14 includes an upper opening 19 that communicates with the hot water supply port 8 of the mold 6 and a lower opening 21 that communicates with the hot water supply pipe 4. Is provided in the shut-off valve 18 so as to penetrate through the shut-off valve 18 at right angles to the axis thereof, and one end of the shut-off valve 18 can communicate with the upper opening 19 of the guide cylinder 14 and the other end of the guide cylinder 14 is provided. When the hot water supply passage 22 is made to communicate with the lower opening 21, and the hot water supply passage 22 is in the horizontal position, the upper end communicates with the hot water supply passage 22 and the lower end communicates with the lower opening 21 of the guide cylinder 14. Low pressure, characterized in that a hot water discharge passage 23 is provided Molten metal cut-off mechanism of forming apparatus.
給して圧力をかけ、給湯管４を介して金型２６に溶湯を
充填せしめる低圧鋳造装置における、上記金型２６の給
湯口２７の途中に配設された溶湯遮断機構２８であっ
て、該溶湯遮断機構２８が、上記金型２６の給湯口２７
と交差して水平方向に穿設された、横断面が円形で盲孔
状の案内孔２９と、該案内孔２９内に遊嵌挿入されて、
摺動回転自在にされた丸棒状の遮断弁１８とから成り、
上記遮断弁１８には、その軸線に直交して貫通穿設さ
れ、一端が上記給湯口２７の上側開口に連通可能にされ
ていると共に他端が該給湯口２７の下側開口に連通可能
にされた給湯通路２２と、該給湯通路２２が水平位置に
ある時、上端が該給湯通路２２に連通すると共に、下端
が上記給湯口２７の下側開口に連通可能にされた排湯通
路２３とが設けられていることを特徴とする、低圧鋳造
装置の溶湯遮断機構。2. A hot water inlet of the mold 26 in a low pressure casting apparatus for supplying compressed air to the surface of the molten metal in the holding furnace 2 to apply pressure to fill the molten metal into the mold 26 via the hot water supply pipe 4. A molten metal shutoff mechanism 28 disposed in the middle of 27, wherein the molten metal shutoff mechanism 28 is a hot water inlet 27 of the mold 26.
A guide hole 29 having a circular cross section and a blind hole, which is bored in the horizontal direction so as to intersect with, and is loosely fitted and inserted into the guide hole 29,
It consists of a round rod-shaped shutoff valve 18 that is slidably rotatable,
The shut-off valve 18 is formed so as to penetrate therethrough at right angles to its axis, one end of which can communicate with the upper opening of the hot water supply port 27 and the other end of which can communicate with the lower opening of the hot water supply port 27. A hot water supply passage 22 and a hot water discharge passage 23 having an upper end communicating with the hot water supply passage 22 and a lower end communicating with a lower opening of the hot water supply port 27 when the hot water supply passage 22 is in a horizontal position. A molten metal shutoff mechanism for a low-pressure casting apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6647691U JPH059748U (en) | 1991-07-26 | 1991-07-26 | Molten metal cutoff mechanism of low pressure casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6647691U JPH059748U (en) | 1991-07-26 | 1991-07-26 | Molten metal cutoff mechanism of low pressure casting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH059748U true JPH059748U (en) | 1993-02-09 |
Family
ID=13316875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6647691U Pending JPH059748U (en) | 1991-07-26 | 1991-07-26 | Molten metal cutoff mechanism of low pressure casting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH059748U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015039723A (en) * | 2013-08-22 | 2015-03-02 | グァンジュー ホイールホース アサヒ アルミニウム カンパニー リミテッド | Casting method of wheel or wheel center part |
| JP2015193031A (en) * | 2014-03-31 | 2015-11-05 | 宇部興産機械株式会社 | Casting apparatus and casting method |
-
1991
- 1991-07-26 JP JP6647691U patent/JPH059748U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015039723A (en) * | 2013-08-22 | 2015-03-02 | グァンジュー ホイールホース アサヒ アルミニウム カンパニー リミテッド | Casting method of wheel or wheel center part |
| JP2015193031A (en) * | 2014-03-31 | 2015-11-05 | 宇部興産機械株式会社 | Casting apparatus and casting method |
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