JPH08197227A - Closed type molten metal supplying apparatus - Google Patents
Closed type molten metal supplying apparatusInfo
- Publication number
- JPH08197227A JPH08197227A JP1176795A JP1176795A JPH08197227A JP H08197227 A JPH08197227 A JP H08197227A JP 1176795 A JP1176795 A JP 1176795A JP 1176795 A JP1176795 A JP 1176795A JP H08197227 A JPH08197227 A JP H08197227A
- Authority
- JP
- Japan
- Prior art keywords
- ladle
- molten metal
- injection sleeve
- cylinder
- hot water
- 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.)
- Pending
Links
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アルミニウム合金やマ
グネシウム合金の溶湯をダイカストマシンなどの射出ス
リーブへ給湯する密閉式給湯装置に係り、特に溶湯吐出
部に付着した溶湯酸化物の混入を防止し、注湯時におけ
る溶湯への空気巻き込みを極力少なくした密閉式給湯装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed hot water supply device for supplying molten metal of aluminum alloy or magnesium alloy to an injection sleeve of a die casting machine or the like, and particularly to prevent mixing of molten metal oxide adhering to the molten metal discharge part. The present invention relates to a sealed hot water supply device in which air entrainment in molten metal during pouring is minimized.
【０００２】[0002]
【従来の技術】ダイカストマシンの射出スリーブへアル
ミニウム合金やマグネシウム合金を給湯するには、従
来、図４に示すように、保持炉１０内の溶湯を酌み取っ
たラドル２０を機械的機構を使用して上昇、横移動して
または円弧軌跡を描きながら傾斜した射出スリーブ２０
０の位置まで移動し、然る後ラドル２０を傾動してラド
ル２０内の溶湯を射出スリーブ２００内へ注湯するラド
ル反転方式が採用されていた。また、図５に示すような
上部に蓋２０ａを有し底部に開口部（吸入口２０ｂ）を
有し、蓋２０ａに空気抜き２０ｃを有する密閉式でない
ラドル２０を保持炉１０内へ浸漬し、底部の開口部より
ラドル２０内へ溶湯を侵入させた後に開口部を閉塞した
後、傾斜した射出スリーブ２００の位置までラドル２０
を移動し、射出スリーブ２００の軸線に合わせてラドル
２０を傾斜しつつラドル底部を射出スリーブ２００内へ
装入してから、底部の開口部を閉塞状態から開放状態に
してラドル内部の溶湯を自然落下させて射出スリーブ２
００内へ供給する方法も採用されていた。この方式は底
抜きラドル方式と呼ばれている。2. Description of the Related Art In order to supply aluminum alloy or magnesium alloy to an injection sleeve of a die casting machine, conventionally, as shown in FIG. 4, a ladle 20 in which a molten metal in a holding furnace 10 is dripped is used by a mechanical mechanism. Injection sleeve 20 which is inclined upward while moving upward, moving laterally, or drawing an arc locus
A ladle reversal method has been adopted in which the ladle 20 is moved to a position of 0, and then the ladle 20 is tilted and the molten metal in the ladle 20 is poured into the injection sleeve 200. Further, as shown in FIG. 5, an unsealed ladle 20 having a lid 20a on the top and an opening (suction port 20b) on the bottom and an air vent 20c on the lid 20a is immersed in the holding furnace 10 to After injecting the molten metal into the ladle 20 through the opening, the opening is closed, and then the ladle 20 is reached to the position of the inclined injection sleeve 200.
Is moved and the ladle 20 is inserted into the injection sleeve 200 while inclining the ladle 20 in line with the axis of the injection sleeve 200, and then the opening in the bottom is changed from the closed state to the open state to allow the molten metal in the ladle to naturally flow. Drop the injection sleeve 2
The method of supplying into 00 was also adopted. This method is called the bottomed ladle method.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述の
ラドル反転方式や底抜きラドル方式のいずれにおいて
も、射出スリーブへの注湯口（ラドルの吐出口）は、溶
湯をラドル内へ入れる場合にラドル本体を保持炉内へ浸
漬するため、ラドル内部に溶湯が入るだけでなくラドル
の外周に溶湯が付着し、ラドルを射出スリーブの位置ま
で移動し、その後の注湯動作中にラドル外周に付着した
溶湯と空気中の酸素とが反応して酸化物を生成し、か
つ、注湯中に滴下してラドル内部の溶湯とともに射出ス
リーブ内へ落下することとなる。したがって、ダイカス
ト成形後の鋳造品にこの酸化物が混入して、品質の低下
を招くという問題があった。また、図４におけるラドル
や図５におけるラドルでは給湯の初期に射出スリーブ内
に落下する溶湯の落下高さが大きく、大きな落下高さの
際に周囲の空気の巻き込みを誘発して鋳造品にブローホ
ールなどの鋳造欠陥を生じる惧れがあった。However, in any of the above-mentioned ladle inversion method and bottomed-out ladle method, the pouring port (ladle discharge port) to the injection sleeve is the ladle body when pouring the molten metal into the ladle. Since the molten metal is immersed in the holding furnace, the molten metal not only enters the inside of the ladle but also adheres to the outer periphery of the ladle, moves the ladle to the position of the injection sleeve, and the molten metal adheres to the outer periphery of the ladle during the subsequent pouring operation. And oxygen in the air react with each other to generate an oxide, which is dropped into the molten metal and drops into the injection sleeve together with the molten metal inside the ladle. Therefore, there is a problem in that this oxide is mixed in the cast product after die casting, resulting in deterioration of quality. Further, in the ladle shown in FIG. 4 and the ladle shown in FIG. 5, the molten metal that falls into the injection sleeve at the beginning of hot water supply has a large drop height, and when the drop height is large, the surrounding air is entrained and blown into the cast product. There was a risk of causing casting defects such as holes.
【０００４】[0004]
【課題を解決するための手段】以上の課題を解決するた
めに、本発明（第１の発明）においては、アルミニウム
合金またはマグネシウム合金の溶湯をダイカストマシン
などの射出スリーブ内へ給湯する密閉式給湯装置であっ
て、溶湯の保持炉内に浸漬され底部に設けた連通遮断自
在な溶湯の吸入口を備えたラドルと該ラドルの懸垂支持
昇降手段と一端が該ラドル内に収納され他端が前記射出
スリーブ内へ装入され該ラドル内の溶湯を該射出スリー
ブ内へ注湯する導管と該ラドル内の溶湯液面を加圧する
不活性ガスの注入手段とを備えた構成とした。また、第
２の発明では、建屋または構造物にピン支持された懸垂
ロッドに昇降シリンダを介して保持炉内に懸架された密
閉式のラドルの底部に溶湯吸入用の吸入口を設けるとと
もに、該吸入口を開閉する昇降自在な弁棒ならびに弁棒
シリンダを該ラドル内に配設し、一端が該ラドル内に下
向きに収納され他端が該ラドル外に垂直に下垂して略Ｕ
字状に湾曲した導管を該ラドルに固設するとともに、該
ラドル内へ不活性ガスを注入する不活性ガス供給装置を
備え、かつ、前記懸垂ロッドを傾動させる傾動シリンダ
を備えた構成とした。さらに、第３の発明では、第２の
発明のものに下記を付加したもので、弁棒シリンダ、昇
降シリンダ、傾動シリンダを司る油圧ユニットにあらか
じめ設定された順序起動のプログラムに基づいて動作指
令を与えるプログラマブルコントローラを備えた。In order to solve the above problems, in the present invention (first invention), a closed type hot water supply for supplying molten metal of aluminum alloy or magnesium alloy into an injection sleeve of a die casting machine or the like. The apparatus is a ladle provided with a molten metal suction port which is immersed in a molten metal holding furnace and which is provided at the bottom and is capable of interrupting communication, a suspension supporting elevating means for the ladle, one end of which is housed in the ladle and the other end of which is The structure is provided with a conduit for charging the molten metal in the ladle into the injection sleeve and pouring the molten metal into the injection sleeve, and an inert gas injecting means for pressurizing the surface of the molten metal in the ladle. In the second invention, a suction rod for sucking molten metal is provided at the bottom of a closed type ladle suspended in a holding furnace through a lifting cylinder on a suspension rod pin-supported in a building or structure, and A vertically movable valve rod and a valve rod cylinder for opening and closing the suction port are disposed in the ladle, one end of which is housed downward in the ladle and the other end of which vertically hangs out of the ladle to substantially U.
A conduit curved in a letter shape is fixed to the ladle, an inert gas supply device for injecting an inert gas into the ladle is provided, and a tilting cylinder for tilting the suspension rod is provided. Furthermore, in the third invention, the following is added to that of the second invention, and an operation command is issued to a hydraulic unit that controls a valve rod cylinder, a lifting cylinder, and a tilting cylinder based on a preset sequence starting program. With programmable controller to give.
【０００５】[0005]
【作用】本発明の密閉式給湯装置においては、ラドルを
溶湯の入った保持炉内に浸漬し、底部の溶湯吸入口より
溶湯をラドル内に吸入してから吸入口を閉塞し、ラドル
の懸垂支持昇降手段を操作してラドルと導管を下げ、導
管吐出口を傾斜した射出スリーブ内に装入する。その
後、不活性ガスの注入手段を介してラドル内に加圧した
不活性ガスを注入することにより、ラドル内の溶湯は導
管内を流れ吐出口から射出スリーブ内へ自然落下する。
注湯中射出スリーブ内の溶湯液面が上昇するので導管吐
出口がこの液面に触れないように液面に近接して液面の
上昇速度に合わせて、前述の昇降手段を操作して導管を
垂直に上昇させる。この時導管吐出口が射出スリーブの
内面と接触しないようにあらかじめ導管吐出口の射出ス
リーブ内下降位置を配慮する。射出スリーブへの溶湯の
注湯は注湯時間でコントロールし、タイマのタイムアウ
トにより不活性ガスの注入を止め、注湯を終了し導管を
待避させ、次回の給湯に備えてラドルを再び保持炉内へ
戻す。第２の発明では、懸垂ロッドで懸架され保持炉内
に浸漬されたラドルの弁棒を上げて解放された吸入口よ
り保持炉内の溶湯をラドル内に吸入して吸入口を閉塞
し、導管吐出管を傾斜した射出スリーブの軸線に合わせ
て傾けるため傾動シリンダで懸垂ロッドを押圧する。そ
の後、不活性ガス供給装置より加圧された不活性ガスを
ラドル内に注入して吐出管よりラドル内の溶湯を射出ス
リーブ内へ給湯する。給湯中、射出スリーブ内の溶湯液
面の上昇に合わせて昇降シリンダを操作して吐出管を上
昇させる。第３の発明では、以上のような一連の動作を
あらかじめプログラム化し、プログラマブルコントロー
ラに入力し、３つのシリンダを司る油圧ユニットに動作
指令を与えて、すべての動作を自動的に制御する。本発
明の密閉式給湯装置では、従来技術のように、吐出口の
外側には溶湯が付着しないので外側の溶湯酸化物の落下
混入がなく、また、射出スリーブ溶湯液面と吐出側下端
の溶湯落下高さを小さく保持できるので空気の巻き込み
が少なく、鋳造品品質が良好に維持できる。In the closed type hot water supply apparatus of the present invention, the ladle is immersed in the holding furnace containing the molten metal, the molten metal is sucked into the ladle from the molten metal suction port at the bottom, and then the suction port is closed to suspend the ladle. The support lifting means is operated to lower the ladle and the conduit, and the conduit discharge port is loaded into the inclined injection sleeve. After that, by injecting the pressurized inert gas into the ladle through the inert gas injecting means, the molten metal in the ladle flows through the conduit and spontaneously drops from the discharge port into the injection sleeve.
Since the liquid level in the injection sleeve during pouring rises, the conduit outlet should be close to the liquid level so that it does not touch the liquid level, and the above-mentioned lifting means is operated to match the rising speed of the liquid level to operate the conduit. To rise vertically. At this time, the descending position of the conduit discharge port in the injection sleeve is taken into consideration so that the conduit discharge port does not come into contact with the inner surface of the injection sleeve. The pouring of the molten metal to the injection sleeve is controlled by the pouring time, the inert gas injection is stopped when the timer times out, the pouring is finished and the conduit is evacuated, and the ladle is held again in preparation for the next hot water supply. Return to. In the second invention, the valve rod of the ladle suspended by the suspension rod and immersed in the holding furnace is raised, and the molten metal in the holding furnace is sucked into the ladle from the opened suction port to close the suction port. The tilting cylinder presses the suspension rod to tilt the discharge tube in line with the axis of the tilted injection sleeve. After that, the inert gas pressurized by the inert gas supply device is injected into the ladle, and the molten metal in the ladle is supplied into the injection sleeve through the discharge pipe. During hot water supply, the elevating cylinder is operated in accordance with the rise of the molten metal liquid level in the injection sleeve to raise the discharge pipe. In the third aspect of the invention, the above series of operations are programmed in advance, input to the programmable controller, and operation commands are given to the hydraulic units that control the three cylinders to automatically control all operations. In the closed type hot water supply apparatus of the present invention, unlike the prior art, since the molten metal does not adhere to the outside of the discharge port, the molten oxide on the outside does not fall and mix, and the molten metal at the injection sleeve molten metal surface and the discharge side lower end Since the drop height can be kept small, there is little air entrapment and the quality of the cast product can be kept good.
【０００６】[0006]
【実施例】以下図面に基づいて本発明の実施例の詳細に
ついて説明する。図１〜図３はいずれも本発明の実施例
に係る密閉式給湯装置の全体構成図であり、図１は第１
の発明に対応する実施例であり、図２〜図３は第２の発
明および第３の発明に対応する実施例である。図１に示
すように、密閉式給湯装置１は直立円筒状のラドル２０
を建屋３０または構造物にピンジョイント４０を介して
ピン支持された懸垂ロッド５０によって懸架され，保持
炉１０内にその大部分が浸漬されるように保持したもの
で、ラドル２０は上端部を密閉蓋２０ａとボルトナット
に接合されて密閉されるとともに、底部に保持炉１０内
の溶湯Ｍがラドル２０内へ吸入するための開口部（吸入
口２０ｂ）を備えるとともに、吸入口２０ｂと保持炉１
０とを連通遮断するための弁棒２２と弁棒２２の昇降手
段である弁棒シリンダ２４を備えている。一方、密閉蓋
２０ａには一端がラドル２０内へ下向きに貫通し、他端
が湾曲してダイカストマシンの射出スリーブ２００の傾
斜した軸線Ｘ−Ｘに沿って傾斜して下降する導管２８が
取り付けられるとともに、Ｎ2 ガスやＡｒガス、ＣＯ2
ガスなどの不活性ガス供給装置８０から供給されるガス
をラドル２０内へ注入する不活性ガスの供給配管８０ａ
が設けられる。密閉蓋２０ａの上部に取り付けられたラ
ドルサポート２６は懸垂ロッド５０の下端と連結された
昇降シリンダ６０のピストンロッド６０ａと連結され、
ラドル２０全体を昇降自在とされるとともに、第２、第
３の発明では懸垂ロッド５０の途中に懸垂ロッド５０を
水平方向に進退動して懸垂ロッド５０を傾動させる傾動
シリンダ７０が配設される。３つの液圧シリンダであ
る、弁棒シリンダ２４と昇降シリンダ６０と傾動シリン
ダ７０の油圧配管は各々独立して油圧ユニット９０に接
続されるとともに、油圧ユニット９０はプログラマブル
コントローラ１００と接続され動作指令をプログラマブ
ルコントローラ１００から受信して作動する。不活性ガ
スの供給配管８０ａの途中には、分岐管を設けてそれぞ
れ電磁弁８１、８２を配設するとともに、電磁弁８１、
８２の開閉動作を操作するためにプログラマブルコント
ローラ１００と電気配線が接続される。第１の発明で
は、図１に示すように、ラドル２０の懸垂支持昇降手段
を鉛直に取り付け、導管２８の吐出管２８ａを傾斜した
射出スリーブ２００の軸線Ｘ−Ｘに平行に傾斜させ、導
管２８は鉛直方向に昇降する。第２の発明や第３の発明
では、図２に示すように、導管２８の吐出管２８ａは鉛
直にして、射出スリーブ２００内へ装入する時に傾動シ
リンダ７０を操作して吐出管２８ａやラドル２０全体を
軸線Ｘ−Ｘ方向に傾斜させてから、昇降シリンダ６０を
操作して吐出管２８ａを傾斜して射出スリーブ２００内
へ下降させて装入する。Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 3 are all schematic views of a sealed hot water supply apparatus according to an embodiment of the present invention, and FIG.
2 to 3 are embodiments corresponding to the second invention and the third invention. As shown in FIG. 1, the closed hot water supply device 1 includes an upright cylindrical ladle 20.
Is suspended in a building 30 or a structure by a suspension rod 50 pin-supported through a pin joint 40, and is held so that most of it is immersed in the holding furnace 10. The ladle 20 hermetically seals the upper end. The lid 20a is joined to a bolt and nut to be hermetically sealed, and an opening (suction port 20b) for sucking the molten metal M in the holding furnace 10 into the ladle 20 is provided at the bottom, and the suction port 20b and the holding furnace 1 are provided.
It is provided with a valve rod 22 for disconnecting communication with 0 and a valve rod cylinder 24 which is an elevating means for the valve rod 22. On the other hand, the sealing lid 20a is provided with a conduit 28, one end of which penetrates downward into the ladle 20 and the other end of which bends and is inclined and descends along the inclined axis XX of the injection sleeve 200 of the die casting machine. In addition, N2 gas, Ar gas, CO2
Inert gas supply pipe 80a for injecting a gas supplied from an inert gas supply device 80 such as gas into the ladle 20.
Is provided. The ladle support 26 attached to the upper part of the sealing lid 20a is connected to the piston rod 60a of the lifting cylinder 60 connected to the lower end of the suspension rod 50,
The entire ladle 20 can be moved up and down, and in the second and third inventions, a tilting cylinder 70 that tilts the suspension rod 50 by moving the suspension rod 50 in the horizontal direction is disposed in the middle of the suspension rod 50. . The hydraulic pipes of the valve rod cylinder 24, the lifting cylinder 60, and the tilting cylinder 70, which are three hydraulic cylinders, are independently connected to the hydraulic unit 90, and the hydraulic unit 90 is connected to the programmable controller 100 to issue an operation command. It operates by receiving it from the programmable controller 100. A branch pipe is provided in the middle of the inert gas supply pipe 80a to provide solenoid valves 81 and 82, respectively, and the solenoid valve 81 and
Electrical wiring is connected to the programmable controller 100 to operate the opening / closing operation of 82. In the first aspect of the invention, as shown in FIG. 1, the suspension supporting elevating means of the ladle 20 is vertically attached, the discharge pipe 28a of the conduit 28 is inclined parallel to the axis XX of the inclined injection sleeve 200, and the conduit 28 Moves up and down in the vertical direction. In the second invention and the third invention, as shown in FIG. 2, the discharge pipe 28a of the conduit 28 is made vertical and the tilting cylinder 70 is operated to load the discharge pipe 28a and the ladle when loading into the injection sleeve 200. After the whole 20 is tilted in the direction of the axis X-X, the elevating cylinder 60 is operated to tilt the discharge pipe 28a to lower it into the injection sleeve 200 and load it.
【０００７】以上のように構成された本発明の密閉式給
湯装置１の作動について説明する。まず、第１の発明で
は、図１のような状態に保持されたラドル２０におい
て、弁棒シリンダ２４を操作して弁棒２２を上昇して吸
入口２０ｂを開状態にして電磁弁８１を閉状態、電磁弁
８２を開状態としてラドル２０と大気を連通し、保持炉
１０の溶湯Ｍをラドル２０内に自然吸入させる。ラドル
２０内に吸入する溶湯量は保持炉１０内に埋没させるラ
ドル２０の高さで調節する。または、ラドル２０の外側
に配設した湯面検知棒で調整する規定の吸入が終了した
後、弁棒２２を下降させて吸入口２０ｂを閉状態とし、
昇降シリンダ６０を操作して吐出管２８ａを下降させ、
射出スリーブ２００内のピストン２００ａの上面に導管
２８の吐出口２８ａを近接するよう調節したうえ、電磁
弁８２を閉じ、電磁弁８１を開いて、あらかじめ、例え
ば１．２ｋｇ／ｃｍ2 程度の低圧に加圧された不活性ガ
スをラドル２０内へ注入すると、ラドル２０内の溶湯液
面は加圧され導管２８を流れ導管２８の吐出口２８ａよ
り落下して射出スリーブ２００内へ注湯され始める。注
湯作業が開始されるとともに射出スリーブ２００内に入
った溶湯液面が次第に上昇し始めるので吐出口２８ａが
この溶湯液面に触れないよう液面の上昇速度とほぼ同じ
速度で昇降シリンダ６０で吐出管２８ａ（すなわちラド
ル２０全体）を上昇させる。一方、第２の発明では図２
の状態でラドル２０内に同様に溶湯を供給した後、吸入
口２０ｂを弁棒２２で閉じた後傾動シリンダ７０を操作
して吐出管２８ａを軸線Ｘ−Ｘの方向に傾斜させてから
昇降シリンダ６０で吐出管２８ａを射出スリーブ２００
内へ下降させる。第３の発明のようなプログラマブルコ
ントローラ１００を備えた装置では、軸線Ｘ−Ｘに沿っ
た動作指令や射出スリーブ２００内の溶湯液面の上昇動
作など一連の動作をあらかじめ設定したプログラムに則
り、油圧ユニット９０に指令信号を発信して自動的に行
うことができる。このようにして規定時間経過後に注湯
作業を終了し、規定の溶湯量が給湯された射出スリーブ
２００より導管吐出口２８ａを待避させるようラドル２
０を移動することにより１サイクルの給湯動作が終了す
る。The operation of the sealed hot water supply apparatus 1 of the present invention having the above-described structure will be described. First, in the first invention, in the ladle 20 held in the state as shown in FIG. 1, the valve rod cylinder 24 is operated to raise the valve rod 22 to open the suction port 20b and close the electromagnetic valve 81. In this state, the solenoid valve 82 is opened and the ladle 20 is communicated with the atmosphere, and the molten metal M of the holding furnace 10 is naturally sucked into the ladle 20. The amount of molten metal sucked into the ladle 20 is adjusted by the height of the ladle 20 to be buried in the holding furnace 10. Alternatively, after the prescribed suction to be adjusted by the molten metal level detection rod arranged outside the ladle 20, the valve rod 22 is lowered to close the suction port 20b,
Operate the lifting cylinder 60 to lower the discharge pipe 28a,
The discharge port 28a of the conduit 28 is adjusted to be close to the upper surface of the piston 200a in the injection sleeve 200, the electromagnetic valve 82 is closed, and the electromagnetic valve 81 is opened to set a low pressure of about 1.2 kg / cm 2 in advance. When the pressurized inert gas is injected into the ladle 20, the molten metal surface inside the ladle 20 is pressurized and flows through the conduit 28 to fall from the discharge port 28a of the conduit 28 to start pouring into the injection sleeve 200. When the pouring work is started, the liquid level of the molten metal that has entered the injection sleeve 200 gradually begins to rise. The discharge pipe 28a (that is, the entire ladle 20) is raised. On the other hand, in the second invention, FIG.
In this state, after similarly supplying the molten metal into the ladle 20, the suction port 20b is closed by the valve rod 22 and the tilting cylinder 70 is operated to tilt the discharge pipe 28a in the direction of the axis XX, and then the lifting cylinder. At 60, the discharge pipe 28a is connected to the injection sleeve 200.
Lower inward. In the device including the programmable controller 100 like the third invention, the hydraulic pressure is set in accordance with a program in which a series of operations such as an operation command along the axis XX and a rising operation of the molten metal surface in the injection sleeve 200 are set in advance. A command signal can be transmitted to the unit 90 for automatic operation. In this way, the pouring work is finished after the lapse of the specified time, and the ladle 2 is arranged so as to retract the conduit discharge port 28a from the injection sleeve 200 supplied with the specified amount of molten metal.
By moving 0, one cycle of hot water supply operation is completed.
【０００８】本発明の密閉式給湯装置１においては、導
管２８の吐出口２８ａの外周には溶湯が付着することが
なく、したがって外周に付着した溶湯酸化物の射出スリ
ーブ２００内への混入が防止される。また、注湯作業中
の吐出口２８ａとピストン２００ａ上面との落下高さを
小さく保持できるので空気の巻き込みによる鋳造品内の
鋳造欠陥の発生も少ない。よって高品質の鋳造品を連続
安定して供給することができる。また、ラドル２０内へ
Ｎ2 ガスなどの不活性ガスで加圧封入するため、ラドル
内溶湯と空気との接触機会が極力防止されるので溶湯に
発生する酸化物がほとんどない。In the closed hot water supply apparatus 1 of the present invention, the molten metal does not adhere to the outer circumference of the discharge port 28a of the conduit 28, and therefore the molten oxide adhered to the outer circumference is prevented from entering the injection sleeve 200. To be done. Further, since the drop height between the discharge port 28a and the upper surface of the piston 200a during the pouring operation can be kept small, the occurrence of casting defects in the cast product due to the entrainment of air is small. Therefore, high-quality cast products can be continuously and stably supplied. Further, since the ladle 20 is pressurized and sealed with an inert gas such as N2 gas, the chance of contact between the molten metal in the ladle and the air is prevented as much as possible, so that almost no oxide is generated in the molten metal.
【０００９】[0009]
【発明の効果】以上述べたように、本発明の密閉式給湯
装置においては、酸化物の混入がほとんどなく、かつ、
注湯時の空気巻き込みも極力防止されるので、鋳造欠陥
のない高品質の鋳造品を連続安定的に供給できる。As described above, in the closed type hot water supply apparatus of the present invention, there is almost no inclusion of oxides, and
Since air entrainment during pouring is also prevented as much as possible, it is possible to continuously and stably supply high-quality cast products with no casting defects.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の実施例に係る密閉式給湯装置の全体構
成図である。FIG. 1 is an overall configuration diagram of a sealed hot water supply apparatus according to an embodiment of the present invention.
【図２】本発明の他の実施例に係る密閉式給湯装置の全
体構成図である。FIG. 2 is an overall configuration diagram of a sealed hot water supply device according to another embodiment of the present invention.
【図３】本発明の他の実施例に係る密閉式給湯装置の全
体構成図である。FIG. 3 is an overall configuration diagram of a sealed hot water supply device according to another embodiment of the present invention.
【図４】従来の給湯装置の説明図である。FIG. 4 is an explanatory diagram of a conventional hot water supply device.
【図５】従来の給湯装置の説明図である。FIG. 5 is an explanatory diagram of a conventional hot water supply device.
１ 密閉式給湯装置 １０ 保持炉 ２０ ラドル ２０ａ 蓋（または密閉蓋） ２０ｂ 吸入口 ２０ｃ 空気抜き ２２ 弁棒 ２４ 弁棒シリンダ ２６ ラドルサポート ２８ 導管 ２８ａ 吐出口（吐出管） ３０ 建屋（または構造物） ４０ ピンジョイント ５０ 懸垂ロッド ６０ 昇降シリンダ ７０ 傾動シリンダ ８０ 不活性ガス供給装置 ８０ａ 供給配管 ８１ 電磁弁 ８２ 電磁弁 ９０ 油圧ユニット １００ プログラマブルコントローラ ２００ 射出スリーブ ２００ａ ピストン 1 Closed Water Heater 10 Holding Furnace 20 Ladle 20a Lid (or Closed Lid) 20b Suction Port 20c Air Vent 22 Valve Rod 24 Valve Rod Cylinder 26 Laddle Support 28 Conduit 28a Discharge Port (Discharge Pipe) 30 Building (or Structure) 40 Pins Joint 50 Suspension rod 60 Lifting cylinder 70 Tilt cylinder 80 Inert gas supply device 80a Supply pipe 81 Solenoid valve 82 Solenoid valve 90 Hydraulic unit 100 Programmable controller 200 Injection sleeve 200a Piston
Claims (3)
金の溶湯をダイカストマシンなどの射出スリーブ内へ給
湯する密閉式給湯装置であって、溶湯の保持炉内に浸漬
され底部に設けた連通遮断自在な溶湯の吸入口を備えた
ラドルと該ラドルの懸垂支持昇降手段と一端が該ラドル
内に収納され他端が前記射出スリーブ内へ装入され該ラ
ドル内の溶湯を該射出スリーブ内へ注湯する導管と該ラ
ドル内の溶湯液面を加圧する不活性ガスの注入手段とを
備えてなる密閉式給湯装置。1. A closed type hot water supply device for supplying a molten metal of an aluminum alloy or a magnesium alloy into an injection sleeve of a die casting machine or the like, wherein the molten metal is immersed in a holding furnace for the molten metal and is capable of disconnecting the molten metal. A ladle provided with a mouth, a suspension supporting elevating means for the ladle, one end housed in the ladle and the other end charged into the injection sleeve, and a conduit for pouring the molten metal in the ladle into the injection sleeve. A sealed hot water supply apparatus comprising: an inert gas injecting means for pressurizing a liquid surface of a molten metal in a ladle.
ロッドに昇降シリンダを介して保持炉内に懸架された密
閉式のラドルの底部に溶湯吸入用の吸入口を設けるとと
もに、該吸入口を開閉する昇降自在な弁棒ならびに弁棒
シリンダを該ラドル内に配設し、一端が該ラドル内に下
向きに収納され他端が該ラドル外に垂直に下垂して略Ｕ
字状に湾曲した導管を該ラドルに固設するとともに、該
ラドル内へ不活性ガスを注入する不活性ガス供給装置を
備え、かつ、前記懸垂ロッドを傾動させる傾動シリンダ
を備えた請求項１記載の密閉式給湯装置。2. A suction rod for sucking molten metal is provided at the bottom of a closed ladle suspended in a holding furnace through a lifting cylinder on a suspension rod pin-supported in a building or structure, and the suction port is A vertically movable valve rod and a valve rod cylinder which are opened and closed are arranged in the ladle, one end of which is housed downward in the ladle and the other end of which is vertically hung outside the ladle to substantially U.
The conduit which is curved like a letter is fixed to the ladle, an inert gas supply device for injecting an inert gas into the ladle is provided, and a tilting cylinder for tilting the suspension rod is provided. Sealed hot water supply device.
ンダを司る油圧ユニットにあらかじめ設定された順序起
動のプログラムに基づいて動作指令を与えるプログラマ
ブルコントローラを備えた請求項２記載の密閉式給湯装
置。3. The sealed hot water supply apparatus according to claim 2, further comprising a programmable controller that gives an operation command to a hydraulic unit that controls the valve rod cylinder, the lifting cylinder, and the tilting cylinder based on a preset sequential activation program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1176795A JPH08197227A (en) | 1995-01-27 | 1995-01-27 | Closed type molten metal supplying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1176795A JPH08197227A (en) | 1995-01-27 | 1995-01-27 | Closed type molten metal supplying apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08197227A true JPH08197227A (en) | 1996-08-06 |
Family
ID=11787135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1176795A Pending JPH08197227A (en) | 1995-01-27 | 1995-01-27 | Closed type molten metal supplying apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08197227A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353811A (en) * | 2014-10-30 | 2015-02-18 | 广东科达洁能股份有限公司 | Vacuum quantifying tank |
-
1995
- 1995-01-27 JP JP1176795A patent/JPH08197227A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353811A (en) * | 2014-10-30 | 2015-02-18 | 广东科达洁能股份有限公司 | Vacuum quantifying tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5076724B2 (en) | Suction open / close hot water supply method and hot water supply apparatus | |
| US4431046A (en) | Automated low-pressure casting mechanism and method | |
| CN106583677A (en) | Vacuum skull furnace and working process thereof | |
| JPH08294765A (en) | Constant molten metal surface level melt holding furnace | |
| GB1110961A (en) | Apparatus for casting of molten metal | |
| US3410332A (en) | Method and apparatus for casting metals in a controlled atmosphere | |
| JPH08197227A (en) | Closed type molten metal supplying apparatus | |
| JPH08206810A (en) | Closed type molten metal supplying device and molten metal supplying method | |
| JPH08215827A (en) | Close type molten metal supplying device and molten metal supplying method | |
| US5358027A (en) | Vacuum-assisted gravity pour casting apparatus | |
| US4784207A (en) | Apparatus for vacuum melting and casting | |
| JPH11188475A (en) | Molten metal ladle device and metal supply method | |
| JPH09206911A (en) | Closed type molten metal supplying apparatus and method for supplying molten metal | |
| JPH09216042A (en) | Method for supplying molten metal in closed type molten metal supplying apparatus | |
| JPH09216044A (en) | Closed type molten metal supplying apparatus | |
| JPH1147905A (en) | Ladle and method for feeding molten metal | |
| JPH07100616A (en) | Device for supplying molten metal in die casting machine | |
| JPH09206913A (en) | Closed type molten metal supplying apparatus and method for supplying molten metal | |
| JPH07323364A (en) | Device for supplying molten metal in diecasting machine | |
| JPH07187291A (en) | Filling device | |
| JPH09216043A (en) | Closed type molten metal supplying apparatus | |
| JPH07108363A (en) | Device for supplying molten metal in die casting machine | |
| JPH09206912A (en) | Closed type molten metal supplying apparatus and method for supplying molten metal | |
| JPH0938765A (en) | Apparatus for pouring molten metal | |
| JPH09206914A (en) | Method for supplying molten metal in closed type molten metal supplying apparatus |