JP2009039764A - Suction opening type molten metal supplying method and apparatus - Google Patents

Suction opening type molten metal supplying method and apparatus Download PDF

Info

Publication number
JP2009039764A
JP2009039764A JP2007208702A JP2007208702A JP2009039764A JP 2009039764 A JP2009039764 A JP 2009039764A JP 2007208702 A JP2007208702 A JP 2007208702A JP 2007208702 A JP2007208702 A JP 2007208702A JP 2009039764 A JP2009039764 A JP 2009039764A
Authority
JP
Japan
Prior art keywords
molten metal
ladle
hot water
water supply
suction
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.)
Granted
Application number
JP2007208702A
Other languages
Japanese (ja)
Other versions
JP5076724B2 (en
Inventor
Masashi Uchida
正志 内田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ube Machinery Corp Ltd
Original Assignee
Ube Machinery Corp Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ube Machinery Corp Ltd filed Critical Ube Machinery Corp Ltd
Priority to JP2007208702A priority Critical patent/JP5076724B2/en
Publication of JP2009039764A publication Critical patent/JP2009039764A/en
Application granted granted Critical
Publication of JP5076724B2 publication Critical patent/JP5076724B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for supplying molten metal in a ladle device for pouring molten metal into the injection sleeve of a die casting machine, by which method and apparatus molten metal can be surely and accurately supplied in a short period of time, and further the drip of molten metal does not occur during carriage. <P>SOLUTION: Only lower side of a molten metal supplying port is immersed into molten metal stored in a storage furnace in a state of opening the molten metal supplying port located in the lower end portion of the ladle. The molten metal stored in the storage furnace is sucked into the ladle by carrying out the vacuum suction of the gas existing in the ladle. When the surface of the molten metal in the ladle has risen and has come into contact with a molten metal surface detecting means, the molten metal supplying port is closed. The ladle is lifted up from the storage furnace and is carried to the injection sleeve in the state that the vacuum suction is kept. Then, the vacuum suction is stopped, and also the molten metal supplying port is opened, and the molten metal is poured in the injection sleeve by supplying inert gas into the ladle. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、アルミニウム合金やマグネシウム合金などの溶融金属をダイカストマシン等の竪鋳込型射出スリーブまたは横鋳込型射出スリーブに給湯する給湯用ラドルに係り、特に、酸化物で汚染されていない清浄な溶湯を短時間で効率よく安定的に射出スリーブへ給湯できる吸引開閉式給湯方法およびその給湯装置を提供するものである。   The present invention relates to a hot water supply ladle that supplies molten metal such as an aluminum alloy or a magnesium alloy to a saddle cast injection sleeve or a horizontal cast injection sleeve such as a die casting machine, and in particular, a clean that is not contaminated with oxides. The present invention provides a suction open / close hot water supply method and a hot water supply apparatus capable of supplying hot water to an injection sleeve efficiently and stably in a short time.

従来、アルミニウム合金、マグネシウム合金等の軽合金の溶融金属である溶湯をダイカストマシン等の射出スリーブに給湯する場合は、たとえば、ダイカストマシンの近傍に専用の保持炉を設置し、この保持炉からラドル（とりべ）により、一定量の溶湯を汲み取り計量、搬送、注湯を行なう方法が実用化の主流をなしていた。   Conventionally, when supplying molten metal, which is a molten metal of a light alloy such as an aluminum alloy or magnesium alloy, to an injection sleeve of a die casting machine or the like, for example, a dedicated holding furnace is installed in the vicinity of the die casting machine, and a ladle is provided from this holding furnace. The method of pumping a fixed amount of molten metal, weighing, transporting, and pouring molten metal by (ladder) has become the mainstream of practical use.

当初は、図８に示すような開放式のラドルが用いられたが、計量・搬送・注湯中に溶湯が外気に曝され酸化が進行するとともに、溶湯温度の低下を招くことから、密閉式で放熱が少なく、かつ給湯量が安定する給湯装置を開発する様々な試みがなされるようになった。   Initially, an open-type ladle as shown in FIG. 8 was used, but since the molten metal was exposed to the outside air during metering, transporting and pouring, oxidation progressed and the temperature of the molten metal was lowered. Therefore, various attempts have been made to develop a hot water supply device that reduces heat dissipation and stabilizes the amount of hot water supply.

たとえば、
（１）図９に示すように、底抜き式のラドル１の下端部に設けた開閉可能な溶湯出入口５を開けた状態で、保持炉Ｆの中の溶湯Ｍに浸漬し、必要な溶湯量を取り入れた後溶湯出入口５を閉じ、射出スリーブ上まで搬送する。その後図１０のように、射出スリーブ２内にラドル下部を挿入する。そして溶湯出入口５を開けて注湯を開始し、射出スリーブ２内へ注湯された溶湯の湯面がラドル１の溶湯出入口５より高くなってからラドル１を上昇させ始め、溶湯の排出状態に対応させてラドル１を上昇させ、溶湯出入口５が常に射出スリーブ２内の溶湯の湯面部にあるような状態で給湯する給湯方法（特許文献１参照）が開示されている。 For example,
(1) As shown in FIG. 9, with the openable and closable molten metal inlet / outlet 5 provided at the lower end of the bottomed ladle 1 being opened, the molten metal is immersed in the molten metal M in the holding furnace F, and the required amount of molten metal Then, the molten metal inlet / outlet 5 is closed and conveyed onto the injection sleeve. Thereafter, as shown in FIG. 10, the lower portion of the ladle is inserted into the injection sleeve 2. Then, the molten metal inlet / outlet 5 is opened to start pouring, and after the molten metal level poured into the injection sleeve 2 becomes higher than the molten metal inlet / outlet 5 of the ladle 1, the ladle 1 starts to rise, and the molten metal is discharged. A hot water supply method (see Patent Document 1) is disclosed in which the ladle 1 is raised correspondingly, and hot water is supplied in a state where the molten metal inlet / outlet 5 is always on the molten metal surface portion of the injection sleeve 2.

（２）また、図１１に示す方法では、ラドル１１の底面１２に筒状の導管１３を設け、ラドル１１の上面に蓋板２４をシール材１７を介して取り付け、蓋板２４に設けられた吸引口２３に配管１８をつなげる。配管１８は途中で分岐し、一方は開閉弁１９を介して真空吸引装置２０と、他方は開閉弁２１を介して不活性ガス供給装置２２と接続する。吸引時は、導管１３の下側のみ保持炉Ｆ内の溶湯Ｍに浸漬し、真空装置２０を作動してラドル内の圧力を下げることにより溶湯を吸引（吸入）しラドル内に取り込む。この時に溶湯の量を正確に計量する方法として、重量検知による方法と真空度検知による方法がある。そして搬送後、注湯時には開閉弁１９を閉じ開閉弁２１を開き不活性ガス供給装置２２を作動し、不活性ガスをラドル内に導入して溶湯を射出スリーブ内に注湯する。（特許文献２参照）。 (2) Further, in the method shown in FIG. 11, the tubular conduit 13 is provided on the bottom surface 12 of the ladle 11, and the lid plate 24 is attached to the top surface of the ladle 11 via the sealing material 17. The pipe 18 is connected to the suction port 23. The pipe 18 branches in the middle, and one is connected to the vacuum suction device 20 via the on-off valve 19 and the other is connected to the inert gas supply device 22 via the on-off valve 21. At the time of suction, only the lower side of the conduit 13 is immersed in the molten metal M in the holding furnace F, and the vacuum apparatus 20 is operated to lower the pressure in the ladle, thereby sucking (suctioning) the molten metal and taking it into the ladle. At this time, as a method for accurately measuring the amount of the molten metal, there are a method by weight detection and a method by vacuum degree detection. After the conveyance, when pouring, the on-off valve 19 is closed, the on-off valve 21 is opened, the inert gas supply device 22 is operated, the inert gas is introduced into the ladle, and the molten metal is poured into the injection sleeve. (See Patent Document 2).

（３）さらには、前述した（２）を改善した方法では図１２に示すように、ラドル３１内に重錘３３と給湯量検知用の湯面検知電極３４を設け、また吸引位置検知用の湯面検知電極３５をラドル３１の外側に設けて、導管３２のみを所望の深さで溶湯内に浸漬する。そして、吸引中にラドル３１内で上昇する湯面の位置を精度良く検知し、それにもとづき真空吸引装置４０につながる開閉弁３９を即座に閉じて、真空吸引を停止し、より正確な計量を行なう方法（特許文献３参照）などがある。
特公平２−５４１８３号公報 特開平１１−４７９０５号公報 特開平１１−２８５８１３号公報 (3) Further, in the method improved from the above (2), as shown in FIG. 12, a weight 33 and a hot water level detection electrode 34 for detecting the amount of hot water supply are provided in the ladle 31, and a suction position detection electrode 34 is also provided. A molten metal level detection electrode 35 is provided outside the ladle 31 and only the conduit 32 is immersed in the molten metal at a desired depth. Then, the position of the hot water surface rising in the ladle 31 is accurately detected during suction, and the on-off valve 39 connected to the vacuum suction device 40 is immediately closed based on the detected position to stop vacuum suction and perform more accurate measurement. Method (see Patent Document 3).
Japanese Examined Patent Publication No. 2-54183 Japanese Patent Application Laid-Open No. 11-47905 Japanese Patent Laid-Open No. 11-285813

しかしながら、これらの給湯方法では、以下に説明するような問題がある。
（１）の給湯方法について（図９、図１０参照）
ａ．ラドル１内に溶湯Ｍを取り入れる際、シリンダー６を動作し弁棒４を上昇させて溶湯出入口５を開き、保持炉Ｆの溶湯内に所望の給湯量になるまでラドル１を沈め、その後弁棒４を下げて溶湯出入口５を閉じ、引き上げてラドル１の移送動作に移る。しかし、ラドル１を溶湯内に深く浸漬するためラドル１の外周面には溶湯が付着し、それに酸化物が発生する。この酸化物が搬送途中で床面上に滴下し、また射出スリーブ内に落下混入し溶湯の清浄度を低下させる。
ｂ．弁棒４の先端とラドル１下部の弁座面とのシール部には、溶湯の酸化凝固物が付きやすく、シール性が劣化していく。シール部における溶湯の圧力と大気圧との差（ΔＰｍ）は、
ΔＰｍ＝ｇ・ρ・Ｈ
（ｇ：重力加速度、
ρ：溶湯の密度、
Ｈ：シール部から湯面までの高さ）
となり、この圧力差によりシール性の劣化したシール部から溶湯が漏出する。搬送中に溶湯が漏出、滴下すると、作業環境を汚染するとともに給湯量が不正確になる。 However, these hot water supply methods have the problems described below.
About the hot water supply method of (1) (refer FIG. 9, FIG. 10)
a. When the molten metal M is introduced into the ladle 1, the cylinder 6 is operated to raise the valve rod 4 to open the molten metal inlet / outlet 5, and the ladle 1 is submerged in the molten metal in the holding furnace F until the desired amount of hot water is supplied. 4 is lowered to close the molten metal inlet / outlet port 5, and it is lifted to move to the ladle 1 transfer operation. However, since the ladle 1 is deeply immersed in the molten metal, the molten metal adheres to the outer peripheral surface of the ladle 1, and oxides are generated thereon. This oxide drops on the floor surface in the middle of conveyance and falls into the injection sleeve to reduce the cleanliness of the molten metal.
b. The seal portion between the tip of the valve stem 4 and the valve seat surface at the bottom of the ladle 1 is liable to be attached with oxidized solids of the molten metal, and the sealing performance deteriorates. The difference (ΔPm) between the pressure of the molten metal and the atmospheric pressure at the seal part is
ΔPm = g · ρ · H
(G: gravitational acceleration,
ρ: density of molten metal,
H: Height from seal to hot water surface)
As a result of this pressure difference, the molten metal leaks from the seal portion where the sealing performance has deteriorated. If the molten metal leaks and drops during transportation, the work environment is contaminated and the amount of hot water supply becomes inaccurate.

（２）の給湯方法について（図１１参照）
ａ．重量検知による計量方法では、ラドル１１本体部と搬送用アーム２５の間に重量検知手段１６を設け、吸引中にラドル１１本体部の重量とラドル内に取り込まれた溶湯との合計重量を検知して、所定の重量に到達したことで吸引を停止し給湯量を決定する方法である。しかし、この方法では、給湯量を計量する際、ラドルの傾転角度や動作状況によって検出重量の値が変動するという欠点があり計量精度が悪い。
ｂ．真空度検知による計量方法では、溶湯を吸入しながら、配管経路における真空度（圧力）を図示せぬ圧力センサーにより検知して、所望の給湯量になる設定吸引圧に到達した状態で圧力を維持し、給湯量を決定する方法である。設定吸引圧とラドル内の湯面高さ（Ｈ）の関係は、
Ｐｏ−Ｐｖ＝ｇ・ρ・Ｈ
（Ｐｏ：大気圧、Ｐｖ：設定吸引圧（絶対真空度））
となる。ここで、ｇとρは定数であり、また吸引圧（真空度）は所望する溶湯高さとなる一定圧力値（Ｐｖ）に制御されるので、大気圧（Ｐｏ）が変動すればそれに対応して湯面の高さが変動する。
たとえば、所望する給湯量に対応する湯面高さ（Ｈ）が９４０ｍｍの場合、ρ＝２．４ｇ（グラム）／ｃｍ３、ｇ＝９．８ｍ／ｓｅｃ２ なので、大気圧（Ｐｏ）を標準気圧（１０１３ｈＰａ（ヘクトパスカル））とすると、Ｐｖ＝７９２ｈＰａとなる。大気圧は１日の間でも９９８〜１０１３ｈＰａの範囲で変動しうるので、差圧（Ｐｏ−Ｐｖ）は、２０６〜２２１ｈＰａとなり、計量が±３．５％バラつくという問題が発生する。ここではラドル内側の水平方向断面の面積が一定である場合の計算であるが、実際はラドルの下側は射出スリーブに入るよう絞られ断面積は小さくなっており、給湯量の変動はさらに大きくなる。要求される給湯量の精度は±２％以下であり、鋳造品質上大きな問題を引き起こす。
この問題を解決するため大気圧との差圧を吸引圧として設定する方法が考えられるが、上述したように差圧は２１０ｈＰａ程度と小さいため、非常に高精度の圧力センサーが必要となり、高価で故障しやすいものになる。また大気圧を運転中に測定し、所望する差圧になるよう吸引圧を都度設定し、その圧力に自動制御する方法もあるが、制御システムや制御方法が煩雑であり、実用的でない。 Regarding the hot water supply method (2) (see FIG. 11)
a. In the weighing method based on the weight detection, weight detection means 16 is provided between the main body of the ladle 11 and the transfer arm 25 to detect the total weight of the main body of the ladle 11 and the molten metal taken into the ladle during suction. Thus, the suction is stopped when the predetermined weight is reached, and the hot water supply amount is determined. However, this method has a drawback that when the amount of hot water is measured, the value of the detected weight varies depending on the tilt angle of the ladle and the operating condition, and the measurement accuracy is poor.
b. In the metering method based on the vacuum level detection, the vacuum level (pressure) in the piping path is detected by a pressure sensor (not shown) while sucking in the molten metal, and the pressure is maintained in a state where the set suction pressure at which the desired hot water supply amount is reached. This is a method for determining the amount of hot water supply. The relationship between the set suction pressure and the hot water surface height (H) in the ladle is
Po−Pv = g · ρ · H
(Po: atmospheric pressure, Pv: set suction pressure (absolute vacuum))
It becomes. Here, g and ρ are constants, and the suction pressure (degree of vacuum) is controlled to a constant pressure value (Pv) at which a desired molten metal height is obtained, so if the atmospheric pressure (Po) fluctuates, it corresponds to it. The height of the hot water fluctuates.
For example, when the hot water surface height (H) corresponding to the desired hot water supply amount is 940 mm, ρ = 2.4 g (gram) / cm 3 and g = 9.8 m / sec 2, so the atmospheric pressure (Po) is the standard. Assuming atmospheric pressure (1013 hPa (hectopascal)), Pv = 792 hPa. Since the atmospheric pressure can fluctuate within a range of 998 to 1013 hPa even during one day, the differential pressure (Po-Pv) becomes 206 to 221 hPa, which causes a problem that the measurement varies by ± 3.5%. Here, the calculation is performed when the area of the horizontal cross section inside the ladle is constant, but in fact, the lower side of the ladle is squeezed into the injection sleeve so that the cross-sectional area is small and the fluctuation in the amount of hot water supply is further increased. . The accuracy of the required hot water supply amount is ± 2% or less, which causes a serious problem in casting quality.
In order to solve this problem, a method of setting the differential pressure from the atmospheric pressure as the suction pressure can be considered. However, since the differential pressure is as small as about 210 hPa as described above, a very high-accuracy pressure sensor is necessary and expensive. It becomes easy to break down. Further, there is a method of measuring the atmospheric pressure during operation, setting the suction pressure each time so as to obtain a desired differential pressure, and automatically controlling to that pressure, but the control system and control method are complicated and impractical.

（３）の給湯方法について（図１２参照）
ａ．真空吸引と湯面検知による計量方法では、真空吸引装置４０が発生する真空圧力で溶湯を吸引し、溶湯上面が湯面検知手段３４に触れた瞬間、開閉弁３９を閉じるとともに真空吸引装置４０を停止して吸引動作を終了する。吸引途中で湯面が上昇中の吸引圧力と湯面高さの関係は、流路が狭い導管３２近傍での溶湯の流動抵抗を考慮すると、
Ｐｏ−Ｐｓ＝ｇ・ρ・ｈ＋Ｃ・Ｑ
（Ｐｓ：真空吸引装置の吸引圧力、
ｈ ：吸引途中の湯面の高さ、
Ｑ ：吸引途中の単位時間に導管３２を通過しラドル内に吸引される溶湯の体積、
Ｃ ：溶湯の導管３２部での流動抵抗を圧力として換算するための定数）
となる。このため、開閉弁３９を閉じても溶湯の吸入は即座に止まらず、湯面がさらに上昇し、圧力差と湯面高さが釣り合ってＱが０になるまで続く。この吸入が完全に停止した時の状態は、
Ｐｏ−Ｐｓ’＝ｇ・ρ・（Ｈ＋Δｈ） ・・・（１）
（Δｈ：開閉弁が閉じた後溶湯が上昇する高さ
Ｐｓ’：吸引が停止した時のラドル内の気体の圧力）
と表せる。また、吸引を停止し開閉弁３９を閉じた瞬間と、吸入が止まった時の圧力と体積の関係は、
Ｐｓ・Ｖ＝Ｐｓ’・（Ｖ−Ａ・Δｈ） ・・・（２）
（Ｐｓ’：吸入が止まった時の圧力、
Ｖ ：開閉弁を閉じた時のラドル内部と開閉弁３９までの配管３８内の気体体積
Ａ ：ラドルの水平方向断面積）
となる（空気の温度は一定と仮定できる）。ここで（２）式を変形し（１）式に代入してＰｓ’を消去すると、
Ｐｏ−｛（Ｐｓ・Ｖ）／（Ｖ−Ａ・Δｈ）｝＝ｇ・ρ・（Ｈ＋Δｈ）
となる。ＰｏとΔｈ以外は全て定数であるため、ΔｈはＰｏ（大気圧）の関数となっており、大気圧の変動により計量値がバラつくといった問題が明確になる。
ｂ．また、溶湯液面が湯面検知手段３４により検知された後、真空吸引装置４０に通じる開閉弁３９を閉じてラドル３１内を密閉して真空吸引圧を保持するようにしているが、上蓋にあるシール部３６や開閉弁３９、４１から外気が徐々に浸入し真空度が下がるため、搬送中に溶湯が漏出、滴下するという欠点もある。 About the hot water supply method of (3) (see FIG. 12)
a. In the metering method by vacuum suction and detection of the molten metal surface, the molten metal is sucked by the vacuum pressure generated by the vacuum suction device 40, and at the moment when the upper surface of the molten metal touches the molten metal surface detecting means 34, the on-off valve 39 is closed and the vacuum suction device 40 is turned on. Stop and end the suction operation. The relationship between the suction pressure when the molten metal surface is rising during the suction and the molten metal surface height is determined by considering the flow resistance of the molten metal in the vicinity of the conduit 32 having a narrow flow path.
Po−Ps = g · ρ · h + C · Q
(Ps: suction pressure of vacuum suction device,
h: The height of the hot water surface during suction,
Q: The volume of the molten metal that passes through the conduit 32 and is sucked into the ladle during unit time during suction,
C: Constant for converting the flow resistance at 32 parts of the molten metal conduit as pressure)
It becomes. For this reason, even if the on-off valve 39 is closed, the molten metal suction does not stop immediately, but the molten metal level rises further, and continues until the pressure difference and the molten metal surface level are balanced and Q becomes zero. When this inhalation is completely stopped,
Po−Ps ′ = g · ρ · (H + Δh) (1)
(Δh: Height at which the molten metal rises after the on-off valve is closed Ps ′: Gas pressure in the ladle when the suction is stopped)
It can be expressed. The relationship between the moment when suction is stopped and the on-off valve 39 is closed and the pressure and volume when suction stops is
Ps · V = Ps ′ · (VA−Δh) (2)
(Ps': pressure when inhalation stops,
V: Gas volume in the ladle when the on-off valve is closed and in the pipe 38 to the on-off valve 39 A: Horizontal cross-sectional area of the ladle)
(The air temperature can be assumed to be constant). Here, if equation (2) is modified and substituted into equation (1) to eliminate Ps ′,
Po − {(Ps · V) / (VA−Δh)} = g · ρ · (H + Δh)
It becomes. Since everything except Po and Δh is a constant, Δh is a function of Po (atmospheric pressure), and the problem that the measured value varies due to fluctuations in atmospheric pressure becomes clear.
b. Further, after the molten metal level is detected by the molten metal level detection means 34, the open / close valve 39 communicating with the vacuum suction device 40 is closed to seal the inside of the ladle 31 so that the vacuum suction pressure is maintained. Since outside air gradually enters from a certain seal portion 36 and on-off valves 39 and 41 and the degree of vacuum is lowered, there is also a disadvantage that the molten metal leaks and drops during conveyance.

このように、従来技術の各種給湯方法では、いずれもが給湯量精度に問題があり、これによって生じる鋳造後のビスケット厚さの変動が、鋳造品質の安定を阻害していた。また、搬送中に起こるラドルからの溶湯の滴下による作業環境の汚染の防止も十分でなかった。本発明では、こうした欠点を解決し、短時間で確実に正確な給湯量の供給ができ、かつ搬送中に溶湯が滴下することがない給湯方法および装置を提供することを意図している。   As described above, in each of the various hot water supply methods of the prior art, there is a problem in the accuracy of the hot water supply, and fluctuations in the thickness of the biscuits after casting caused thereby hinder the stability of the casting quality. Further, the work environment was not sufficiently prevented from being contaminated by molten metal dripping from the ladle during the transportation. The present invention intends to provide a hot water supply method and apparatus that solves these drawbacks, can reliably supply an accurate amount of hot water in a short time, and does not cause molten metal to drip during transportation.

以上の課題を解決するために、
第１の本発明では、金型装置のキャビティ内へ溶融金属の溶湯を射出充填する射出スリーブへ溶湯を供給する給湯方法であって、ラドルの下端部にある給湯口を開いた状態で給湯口の下側のみを保持炉の溶湯内に浸漬し、ラドル内の気体を真空吸引することにより保持炉の溶湯をラドル内に吸引し、ラドル内の溶湯の湯面が上昇して湯面検知手段に接触し検知した時給湯口を閉じ、ラドル内への溶湯の取り込みを完了するようにした。 In order to solve the above problems,
According to a first aspect of the present invention, there is provided a hot water supply method for supplying a molten metal to an injection sleeve for injecting and filling a molten metal into a cavity of a mold apparatus, wherein the hot water inlet is opened at a lower end of a ladle. Only the lower side is immersed in the molten metal in the holding furnace, the gas in the ladle is sucked into the ladle by vacuum suction, and the molten metal level in the ladle rises to detect the molten metal level. The hot water inlet was closed when it was detected by touching the slab, and the uptake of the molten metal into the ladle was completed.

第２の本発明では、第１の発明において、保持炉からラドル内への溶湯の吸引は、吸引開始時からは高真空による高速の吸引を行い、途中で低真空による低速の吸引に切り替えるようにした。   In the second aspect of the present invention, in the first aspect of the present invention, the suction of the molten metal from the holding furnace into the ladle is performed at a high speed by a high vacuum from the start of the suction, and switched to a low speed suction at a low vacuum in the middle. I made it.

第３の本発明では、第１、２の発明によりラドル内に溶湯を取り込んだ後、真空吸引を保持した状態で、ラドルを保持炉から引き上げ射出スリーブまで移送し、真空吸引を停止するとともに給湯口を開き、不活性ガスをラドル内に供給して、射出スリーブ内に溶湯を注湯するようにした。   In the third aspect of the present invention, after the molten metal is taken into the ladle according to the first and second aspects of the invention, the ladle is pulled up from the holding furnace and transferred to the injection sleeve while holding the vacuum suction, and the vacuum suction is stopped and the hot water is supplied. The mouth was opened, an inert gas was supplied into the ladle, and the molten metal was poured into the injection sleeve.

次に、第４本発明では、金型装置のキャビティ内へ溶融金属の溶湯を射出充填する射出スリーブへ溶湯を供給する給湯装置であって、内部に溶湯を貯留するラドルと、ラドルの下端部に設けられ開閉可能な給湯口と、給湯口を開閉する給湯口開閉手段と、ラドルの上側に取り付けられた蓋板と、蓋板に支持されラドル内の溶湯の湯面を検知する湯面検知手段と、ラドル内の気体を吸引するため蓋板に設けられた吸引口に配管接続された吸引装置、を備える構成とした。   Next, according to a fourth aspect of the present invention, there is provided a hot water supply apparatus for supplying a molten metal to an injection sleeve for injecting and filling a molten metal into a cavity of a mold apparatus, the ladle storing the molten metal therein, and a lower end portion of the ladle A hot water supply opening that can be opened and closed, a hot water supply opening / closing means that opens and closes the hot water supply, a lid plate attached to the upper side of the ladle, and a hot water level detection that is supported by the lid plate and detects the molten metal level in the ladle And a suction device connected to a suction port provided in the lid plate for sucking the gas in the ladle.

第５の本発明では、第４の発明において、ラドルは、内部に溶湯を貯留する外筒と、外筒の下端と外周部が連続する底面板からなり、給湯口は、底面板を貫通し底面板の上下方向に延在し外径が外筒の下部の内側よりも小さな円筒状の導管と、蓋板を貫通する垂直棒の下端に固設され外径が導管よりも大きい水平円盤と水平円盤の外周部に下垂する円筒状の堰板より構成される遮蔽板からなり、給湯口開閉手段は、蓋板の上側で支持され、垂直棒の上端と接続し、垂直棒を上下に動作可能で、遮蔽板の水平円盤の下面を導管の上面に押し付けることにより給湯口を閉じ、遮蔽板の水平円盤の下面と導管の上面との間に隙間を設けることにより給湯口を開けることが可能な構造である構成とした。   According to a fifth aspect of the present invention, in the fourth aspect of the invention, the ladle is composed of an outer cylinder that stores molten metal therein, and a bottom plate in which the lower end and the outer periphery of the outer cylinder are continuous, and the hot water supply port passes through the bottom plate. A cylindrical conduit extending in the vertical direction of the bottom plate and having an outer diameter smaller than the inside of the lower part of the outer cylinder, and a horizontal disk fixed to the lower end of a vertical bar penetrating the lid plate and having an outer diameter larger than the conduit Consists of a shielding plate composed of a cylindrical weir plate that hangs down from the outer periphery of the horizontal disk. The hot water inlet opening / closing means is supported on the upper side of the lid plate, and is connected to the upper end of the vertical bar, and moves the vertical bar up and down. It is possible to close the hot water inlet by pressing the lower surface of the horizontal disk of the shielding plate against the upper surface of the conduit, and open the hot water outlet by providing a gap between the lower surface of the horizontal disk of the shielding plate and the upper surface of the conduit. The structure is a simple structure.

第６の本発明では、第４または第５の発明において、溶湯を吸引する吸引装置は、開閉弁と高真空で高速用の吸引装置と低真空で保持用の吸引装置からなる構成とした。 In a sixth aspect of the present invention, in the fourth or fifth aspect, the suction device for sucking the molten metal is composed of an on-off valve, a high-vacuum high-speed suction device, and a low-vacuum suction suction device.

そして、第７の本発明では、第４、第５または第６の発明において、ラドル内に不活性ガスを供給するため蓋板と配管接続された不活性ガス供給装置を備える構成とした。   And in 7th this invention, it was set as the structure provided with the inert gas supply apparatus connected with the cover plate in order to supply an inert gas in a ladle in 4th, 5th or 6th invention.

本発明では、下記のような優れた効果を発揮する。
（１）ラドル内に溶湯を取り込む際、湯面の上昇位置を湯面検知手段で検知して給湯口を塞ぎ取り込みを即座に完了するので、計量精度が大気圧の変動に影響されることがなくなる。そのため、スリーブへの給湯量が安定し、長時間の運転でも品質の安定した鋳造が可能となる。
（２）溶湯をラドル内に吸引する時の真空圧力を二段階に設定できるので、吸引開始時からの高速吸引と終了前の低速吸引の両方が可能で、短時間かつ計量精度の高い吸引を実現できる。
（３）ラドル底面にある給湯口のシール部における溶湯の圧力を大気圧より若干低く保持できるので、溶湯のシール面に凝固物が付着しシール性が劣化した場合でも、搬送時にシール面から溶湯が漏出、滴下することがない。 In the present invention, the following excellent effects are exhibited.
(1) When the molten metal is taken into the ladle, the rising position of the molten metal level is detected by the molten metal level detecting means, and the hot water inlet is closed to complete the loading immediately. Therefore, the measurement accuracy may be affected by fluctuations in atmospheric pressure. Disappear. Therefore, the amount of hot water supplied to the sleeve is stable, and casting with stable quality can be performed even for a long time operation.
(2) Since the vacuum pressure when the molten metal is sucked into the ladle can be set in two stages, both high-speed suction from the start of suction and low-speed suction before the end are possible. realizable.
(3) Since the pressure of the molten metal at the seal portion of the hot water outlet on the bottom surface of the ladle can be kept slightly lower than the atmospheric pressure, even if solidified material adheres to the sealed surface of the molten metal and the sealing performance deteriorates, the molten metal can be removed from the sealed surface during transportation. Does not leak or dripping.

以下、図面に基づいて、本発明の吸引開閉式給湯方法及び給湯装置に関する実施例を詳細に説明する。図１〜図７はいずれも本発明の実施例に係り、図１は吸引開閉式ラドルユニットの縦断面図、図２は吸引前のラドルユニットとエアー回路の状態を示す説明図、図３は吸引中の状態を示す説明図、図４は湯面を検知して吸引を停止し真空を保持している状態を示す図説明、図５は搬送後射出スリーブ内に溶湯を注湯している状態を示す説明図、図６は注湯の工程を示す説明図、そして、図７は横型のダイカストマシンにおいて注湯完了後の状態を示す図である。   DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments relating to a suction open / close hot water supply method and a hot water supply apparatus according to the present invention will be described below in detail with reference to the drawings. 1 to 7 all relate to an embodiment of the present invention, FIG. 1 is a longitudinal sectional view of a suction opening / closing type ladle unit, FIG. 2 is an explanatory view showing a state of a ladle unit and an air circuit before suction, and FIG. FIG. 4 is an explanatory diagram showing a state during suction, FIG. 4 is a diagram illustrating a state in which the hot water surface is detected and suction is stopped and vacuum is maintained, and FIG. 5 is a case where molten metal is poured into the injection sleeve after conveyance. FIG. 6 is an explanatory diagram showing a pouring process, FIG. 6 is a diagram showing a state after pouring is completed in a horizontal die casting machine.

図１に示すように、吸引開閉式給湯装置のラドルユニット１００は大きく分けて、ラドル１１０、蓋板１１８、垂直棒１１６、遮蔽板開閉シリンダー１２０、給湯口１０５からなる。
ラドル１１０の外筒１１０ｂは垂直円筒容器状で、射出スリーブの中に挿入できるよう下方向に縮径している。外筒１１０ｂの下端部は、底面板１１０ａの外周部と連続的につながっている。底面板１１０ａの中央部には、垂直状態の筒状の導管１１２が貫通しており、高さ方向でほぼ真中の位置で接続固定されている。給湯口１０５は、導管１１２と遮蔽板１１４から構成される。また、外筒１１０ｂには図示しない保温材が巻かれており、搬送中等に溶湯の温度が下がることを防止している。 As shown in FIG. 1, the ladle unit 100 of the suction open / close hot water supply apparatus is roughly divided into a ladle 110, a lid plate 118, a vertical bar 116, a shield plate open / close cylinder 120, and a hot water supply port 105.
The outer cylinder 110b of the ladle 110 is in the shape of a vertical cylindrical container and is reduced in diameter downward so that it can be inserted into the injection sleeve. The lower end portion of the outer cylinder 110b is continuously connected to the outer peripheral portion of the bottom plate 110a. A cylindrical pipe 112 in a vertical state passes through the central portion of the bottom plate 110a, and is connected and fixed at a substantially middle position in the height direction. The hot water supply port 105 includes a conduit 112 and a shielding plate 114. In addition, a heat insulating material (not shown) is wound around the outer cylinder 110b to prevent the temperature of the molten metal from being lowered during conveyance.

ラドル１１０の上端部には蓋板１１８がフランジ１１９によって固定されている。蓋板１１８にはラドル内の湯面を検知するための湯面検出手段１０８が支持されている。鋳造に使う金型により要求される給湯量が違うため、湯面検出手段１０８は上下方向位置の調節が可能になっている。湯面検出手段１０８は、電極や熱電対のように、制御装置が電気信号として湯面の高さを認識できるものが望ましい。また、蓋板１１８には、ラドル内の気体を吸引し真空状態にするために吸引装置と配管で接続されている吸引口１３１、不活性ガスを配管を経由してラドル内に導くための排出口１３２が設けられている。   A lid plate 118 is fixed to the upper end portion of the ladle 110 by a flange 119. The lid plate 118 supports a molten metal level detecting means 108 for detecting the molten metal level in the ladle. Since the required amount of hot water supply differs depending on the mold used for casting, the position of the hot water surface detection means 108 can be adjusted in the vertical direction. It is desirable that the molten metal level detection means 108 can recognize the height of the molten metal level as an electric signal, such as an electrode or a thermocouple. The lid plate 118 has a suction port 131 connected to the suction device for piping to suck the gas in the ladle and put it in a vacuum state, and a discharge for guiding the inert gas into the ladle through the piping. An outlet 132 is provided.

蓋板１１８には、接続部材１３３を介して遮蔽板開閉シリンダー１２０が取り付けられており、そのシリンダーロッドは下方を向いている。
ラドルの外筒１１０ｂの中心線上には垂直棒１１６が存在し、上端は蓋板１１８を貫通して遮蔽板開閉シリンダー１２０のシリンダーロッドに接続されており、また、下端には水平円盤１１４ａと堰板１１４ｂからなる遮蔽板１１４が固設されている。水平円盤１１４ａは、導管１１２の外径よりも大きく外周下部に円筒状の堰板１１４ｂが下垂しているため、遮蔽板１１４は逆凸状に形成されている。遮蔽板開閉シリンダー１２０が動作し垂直棒１１８が降下すると、遮蔽板１１４の水平円盤１１４ａの下面は導管１１２の上面に押し付けられ、給湯口１０５が閉じられる。また、垂直棒１１６が上昇すると、水平円盤１１４ａ下面と導管１１２の上面には隙間ができ、溶湯が通過できる流路が形成され、給湯口１０５は開けられる。
また、蓋板１１８には図示していない搬送用アームが取り付けられており、搬送用アームを動かす多関節ロボットなどによって、ラドルは保持炉と射出スリーブの間を搬送される。 A shielding plate opening / closing cylinder 120 is attached to the lid plate 118 via a connecting member 133, and the cylinder rod faces downward.
A vertical bar 116 exists on the center line of the outer cylinder 110b of the ladle, and the upper end passes through the cover plate 118 and is connected to the cylinder rod of the shielding plate opening / closing cylinder 120, and the lower end is connected to the horizontal disk 114a and the weir. A shielding plate 114 made of a plate 114b is fixed. Since the horizontal disk 114a is larger than the outer diameter of the conduit 112 and a cylindrical weir plate 114b hangs at the lower part of the outer periphery, the shielding plate 114 is formed in a reverse convex shape. When the shielding plate opening / closing cylinder 120 operates and the vertical bar 118 descends, the lower surface of the horizontal disk 114a of the shielding plate 114 is pressed against the upper surface of the conduit 112, and the hot water supply port 105 is closed. When the vertical bar 116 is raised, a gap is formed between the lower surface of the horizontal disk 114a and the upper surface of the conduit 112, a flow path through which the molten metal can pass is formed, and the hot water supply port 105 is opened.
Further, a transport arm (not shown) is attached to the lid plate 118, and the ladle is transported between the holding furnace and the injection sleeve by an articulated robot that moves the transport arm.

さらに、蓋板１１８には、ラドル１１０や湯面検出手段１０８との接触面、垂直棒１１６の摺動部に、シール材１１７が配設されているので、ラドル内部が負圧の時にも外気が浸入することを防いでいる。   Furthermore, since the sealing material 117 is disposed on the lid plate 118 on the contact surface with the ladle 110 and the hot water level detecting means 108 and on the sliding portion of the vertical bar 116, the outside air is discharged even when the inside of the ladle is under negative pressure. Is prevented from entering.

次に図２を用いて、ラドルユニット１００と接続するエアー回路について説明する。
蓋板１１８の排出口１３２には、不活性ガス供給装置が配管接続されている。不活性ガス供給装置は、配管接続される開閉弁Ｅと溶湯供給速度調整バルブ１２６と窒素ガスなどの不活性ガスを充満しているボンベから構成される。溶湯供給速度調整バルブ１２６の開度を変えることにより、溶湯を射出スリーブ内に注湯する時の速度を適切に調整できる。 Next, an air circuit connected to the ladle unit 100 will be described with reference to FIG.
An inert gas supply device is connected to the discharge port 132 of the lid plate 118 by piping. The inert gas supply device includes an on-off valve E connected to the pipe, a molten metal supply speed adjustment valve 126, and a cylinder filled with an inert gas such as nitrogen gas. By changing the opening degree of the molten metal supply speed adjustment valve 126, it is possible to appropriately adjust the speed at which the molten metal is poured into the injection sleeve.

また、蓋板１１８の吸引口１３１は、吸引用の開閉弁Ａと高速用吸引装置と保持用吸引装置から構成される吸引装置と配管接続されている。吸引口１３１と開閉弁Ａの一方のポートが接続し、他方のポートからは配管が途中で分岐して高速用吸引装置と保持用吸引装置につながっている。この配管はさらに分岐しており、真空度検出圧力センサー１２７にも接続されている。
高速用吸引装置は、高速用真空吸引バルブ１２３、サイレンサー１２１、高速吸引圧調整バルブ１２５、開閉弁Ｃから構成され、エアー圧供給口とつながっている。同様に、保持用吸引装置は、保持用真空吸引バルブ１２４、サイレンサー１２１、保持吸引圧調整バルブ１２４、開閉弁Ｂから構成され、エアー圧供給口とつながっている。高速用真空吸引バルブ１２３は保持吸引圧調整バルブ１２４より高い真空度で溶湯を高速で吸引するために用いられるので、保持用真空吸引バルブ１２２よりも容量が大きいことが望ましい。 The suction port 131 of the lid plate 118 is connected to a suction device including a suction on-off valve A, a high-speed suction device, and a holding suction device. One port of the suction port 131 and the on-off valve A is connected, and a pipe branches from the other port in the middle and is connected to the high-speed suction device and the holding suction device. This pipe is further branched and is also connected to a vacuum degree detection pressure sensor 127.
The high-speed suction device includes a high-speed vacuum suction valve 123, a silencer 121, a high-speed suction pressure adjustment valve 125, and an on-off valve C, and is connected to an air pressure supply port. Similarly, the holding suction device includes a holding vacuum suction valve 124, a silencer 121, a holding suction pressure adjusting valve 124, and an on-off valve B, and is connected to an air pressure supply port. Since the high-speed vacuum suction valve 123 is used to suck the molten metal at a high speed with a higher degree of vacuum than the holding suction pressure adjusting valve 124, it is desirable that the capacity is larger than the holding vacuum suction valve 122.

エアー供給口には図示せぬコンプレッサー等で高圧（大気圧を基準にして０．４〜０．５ＭＰａ）に圧縮されたエアーが供給される。それぞれの吸引バルブ１２２，１２３では、高圧のエアーをサイレンサー１２１を介して大気圧に開放することにより、高速のエアーの流れを発生させ真空状態を作り出すことができる。この時の真空度は、調整バルブ１２４、１２５により、溶湯の吸入状態や真空度検出圧力センサー１２７の測定値に基づき調整することができる。
高速用吸引装置は、吸入する際にラドル内で溶湯の上昇状態が乱れない程度の高速で吸引できるよう調整される。また、保持用吸引装置は、湯面を上限位置の若干上まで吸引できる程度の真空度に調整される。
また、蓋板１１８に設けられた吸引口１３１と排出口１３２は、１つの吸引排出口としてまとめ、配管の途中で分岐しそれぞれを吸引装置と不活性ガス供給装置に接続することが可能である。
それぞれの開閉弁は、ソレノイドを励磁すると開き、消磁すると閉じることができる。 Air compressed to a high pressure (0.4 to 0.5 MPa with reference to atmospheric pressure) by a compressor (not shown) or the like is supplied to the air supply port. In each of the suction valves 122 and 123, by releasing the high-pressure air to the atmospheric pressure through the silencer 121, a high-speed air flow can be generated to create a vacuum state. The degree of vacuum at this time can be adjusted by the adjusting valves 124 and 125 based on the molten metal suction state and the measured value of the degree of vacuum detection pressure sensor 127.
The high-speed suction device is adjusted so that suction can be performed at a high speed that does not disturb the rise of the molten metal in the ladle during suction. Further, the suction device for holding is adjusted to a degree of vacuum that can suck the molten metal surface slightly above the upper limit position.
In addition, the suction port 131 and the discharge port 132 provided on the cover plate 118 can be combined as one suction / discharge port, and can be branched in the middle of the pipe and connected to the suction device and the inert gas supply device. .
Each on-off valve can be opened when the solenoid is energized and closed when the magnet is demagnetized.

遮蔽板開閉シリンダー１２０のロッド側とヘッド側のポートは、切替バルブＤを介してエアー供給口に接続されている。切替バルブＤを励磁すると遮蔽板開閉シリンダー１２０のロッド側に圧力が入り垂直棒１１６及び遮蔽板１１４を押し上げ給湯口を開き、逆に消磁するとロッド側に圧力が入り垂直棒と遮蔽板は下降し給湯口は閉じられる。   The rod side and head side ports of the shielding plate opening / closing cylinder 120 are connected to an air supply port via a switching valve D. When the switching valve D is energized, pressure is applied to the rod side of the shielding plate opening / closing cylinder 120 to push up the vertical rod 116 and the shielding plate 114 to open the hot water supply port. The hot water outlet is closed.

開閉弁、切替弁、湯面検知手段、真空度検出圧力センサーは図示せぬ制御装置と電気的に接続されており、制御装置からの指令信号により作動し、また、制御装置に信号を送付することにより、ダイカストマシンの一連の鋳造動作と同調して、給湯作業を行なうことができる。   The on-off valve, switching valve, hot water level detection means, and vacuum degree detection pressure sensor are electrically connected to a control device (not shown), and are operated by a command signal from the control device, and also send a signal to the control device. Thus, the hot water supply operation can be performed in synchronization with a series of casting operations of the die casting machine.

次に、このように構成されたラドルユニット１００とエアー回路を用いて、保持炉内に貯蔵された溶融金属（溶湯）Ｍを、竪型射出スリーブや横型射出スリーブに所要の給湯量を給湯する方法について、以下に説明する。   Next, by using the ladle unit 100 configured as described above and the air circuit, the molten metal (molten metal) M stored in the holding furnace is supplied to the vertical injection sleeve or the horizontal injection sleeve with a required amount of hot water supply. The method will be described below.

まず、鋳造作業開始前の準備段階では、切替弁Ｄを励磁して給湯口１０５を開き、さらに開閉弁Ｅを開いてガスボンベ内の不活性ガスをラドル内に流す。開閉弁Ｅが開いている時間は予め設定されており、ラドル内部が不活性ガスで満たされる頃になると、タイマー計時が完了し開閉弁Ｅを閉じ、図２に示す状態となる。これはラドル内から酸素を多く含んだ空気を追い出して不活性ガスで満たすことにより、ラドル内での溶湯の酸化を防ぐためである。   First, in the preparatory stage before starting the casting operation, the switching valve D is excited to open the hot water supply port 105, and the on-off valve E is further opened to flow the inert gas in the gas cylinder into the ladle. The time during which the on-off valve E is open is set in advance. When the inside of the ladle is filled with the inert gas, the timer timing is completed, the on-off valve E is closed, and the state shown in FIG. This is to prevent oxidation of the molten metal in the ladle by expelling air containing a large amount of oxygen from the ladle and filling it with an inert gas.

次に、ラドルユニット１００を搬送装置で保持炉上に移送し、導管１１２の下部を溶湯液面の中に浸漬する。浸漬する深さは、導管１１２の下端が溶湯の湯面から５〜３０ｍｍ程度浸漬するようにし、底面板１１０ａが湯面に接しない深さとする。   Next, the ladle unit 100 is transferred onto the holding furnace by the transfer device, and the lower part of the conduit 112 is immersed in the molten metal surface. The immersion depth is such that the lower end of the conduit 112 is immersed about 5 to 30 mm from the molten metal surface, and the bottom plate 110a is not in contact with the molten metal surface.

本実施例では、導管１１２の下側部のみを保持炉Ｆ内の溶湯Ｍの液面に浸漬し、底面板１１０ａと外筒１１０ｂを溶湯内に浸漬する必要はないから、外筒１１０ｂの外周面への溶湯の付着がなくなるため射出スリーブ内への付着物の落下混入がなくなり、射出スリーブへ注湯する溶湯内の酸化物を最小に留めるので、溶湯の清浄度を高く保持できる。また、搬送途中での滴下もない。   In this embodiment, it is not necessary to immerse only the lower portion of the conduit 112 in the liquid level of the molten metal M in the holding furnace F, and it is not necessary to immerse the bottom plate 110a and the outer cylinder 110b in the molten metal. Since there is no adhesion of the molten metal to the surface, the adhering substance does not fall into the injection sleeve and the oxide in the molten metal poured into the injection sleeve is kept to a minimum, so that the purity of the molten metal can be kept high. Moreover, there is no dripping in the middle of conveyance.

次に、切替弁Ｄを励磁した状態で、開閉弁Ｂと開閉弁Ｃを開き保持用真空吸引バルブ１２２と高速用真空吸引バルブ１２３を作動するとともに、開閉弁Ａを開いてラドル内を負圧にし溶湯の吸引を開始する。高速用真空吸引バルブ１２３は真空度を高く調整されているため吸引力が強く、高速で溶湯を吸引できる。（図３参照）
吸引が進み湯面が湯面検出手段１０８の近傍まで上昇すると、開閉弁Ｃを閉じて高速用真空吸引バルブ１２３の動作を停止する。この開閉弁Ｃを閉じるタイミングは、予め設定された吸引開始からの経過時間であり、タイマーの計時完了により決まる。その後吸引は保持用真空吸引バルブ１２２のみで行われるが、吸引のための真空度はあまり高く調整されていないため湯面の上昇速度は低速となる。そして、湯面が湯面検知手段１０８に触れた瞬間切替弁Ｄは消磁され給湯口が閉じられて溶湯のラドル内への取り込みは即座に停止する。（図４参照）
このように、保持用真空吸引バルブ１２２と高速用真空吸引バルブ１２３を併用することで、短時間で計量精度の良い溶湯の取り込みが可能となる。 Next, while the switching valve D is energized, the on-off valve B and the on-off valve C are opened, the holding vacuum suction valve 122 and the high-speed vacuum suction valve 123 are operated, and the on-off valve A is opened to create a negative pressure in the ladle. Start sucking the molten metal. Since the vacuum suction valve 123 for high speed is adjusted to have a high degree of vacuum, the suction force is strong and the molten metal can be sucked at a high speed. (See Figure 3)
When suction progresses and the molten metal surface rises to the vicinity of the molten metal surface detecting means 108, the on-off valve C is closed and the operation of the high-speed vacuum suction valve 123 is stopped. The timing for closing the on-off valve C is a preset elapsed time from the start of suction, and is determined by the completion of timer timing. Thereafter, suction is performed only by the holding vacuum suction valve 122, but the degree of vacuum for suction is not adjusted so high that the rising speed of the molten metal surface is low. Then, the instantaneous switching valve D when the molten metal surface touches the molten metal surface detecting means 108 is demagnetized, the hot water supply port is closed, and the molten metal is immediately taken into the ladle. (See Figure 4)
In this way, by using the holding vacuum suction valve 122 and the high-speed vacuum suction valve 123 in combination, it is possible to take in the molten metal with high measurement accuracy in a short time.

その後、図示せぬ搬送装置によりラドルは保持炉の溶湯から引き上げられ射出スリーブの上部まで運ばれる。供給口が閉じた後も開閉弁Ａと開閉弁Ｂは開き続けるので、保持用真空吸引バルブ１２２によりラドル内の真空度は保持され続けている。それによって、給湯口での溶湯の圧力は大気圧よりも若干低く保たれ、シール部でのシール性が劣化した場合でも、溶湯が漏出し、滴下することはない。また、真空吸引が保持されるので、シール材１１７が多少劣化し外気が浸入しても、真空度が下がることはない。   Thereafter, the ladle is lifted from the molten metal in the holding furnace and carried to the upper portion of the injection sleeve by a conveying device (not shown). Since the on-off valve A and the on-off valve B continue to open after the supply port is closed, the degree of vacuum in the ladle is kept by the holding vacuum suction valve 122. Thereby, the pressure of the molten metal at the hot water supply port is kept slightly lower than the atmospheric pressure, and even when the sealing performance at the seal portion is deteriorated, the molten metal does not leak and drop. Further, since vacuum suction is maintained, the degree of vacuum does not decrease even if the sealing material 117 is somewhat deteriorated and the outside air enters.

射出スリーブまで搬送され注湯可能な状態になると、開閉弁Ａと開閉弁Ｂが閉じられ吸引が全て停止するとともに切替弁Ｄが励磁され給湯口は１０５開かれる。そして、開閉弁Ｅが開かれ不活性ガスがラドル内に送り込まれ注湯が行われる。（図５参照）   When the injection sleeve is conveyed and pouring is possible, the on-off valve A and the on-off valve B are closed, all the suction is stopped, the switching valve D is excited, and the hot water supply port 105 is opened. Then, the on-off valve E is opened, an inert gas is sent into the ladle, and pouring is performed. (See Figure 5)

ここで、溶湯を射出スリーブ内により穏やかに注湯する方法を図６により説明する。
まず、ラドルを傾転して傾動した射出スリーブＳの傾斜角に合わせ（工程（ａ））、ラドルの下部を射出スリーブＳの中まで下降させる（工程（ｂ））。続いて、吸引を停止し給湯口を開けるとともに不活性ガスを送り込み、ラドル内の圧力を上げて溶湯を射出スリーブ内に注湯する（工程（ｃ））。注湯開始と同時にラドルを徐々に上昇させ、射出スリーブＳ内の湯面の上昇とラドルの上昇を同期させることで溶湯の落下高さを低く一定に保ち、より静かな注湯を行なう。さらに溶湯の排出速度は、不活性ガスの流量を任意に変えて調整することができるので、落下の際の溶湯Ｍへの空気の巻き込みが防止でき、かつできるだけ速い速度に調節される。そのため、溶湯の温度の低下が小さく空気の混入も無いので、鋳造欠陥の無い優れた成形品が得られる。ラドル内の溶湯Ｍの排出が完了した後、不活性ガスの供給を停止しラドルを射出スリーブＳ内より上昇させ（工程（ｄ））、ラドルを傾転状態から垂直状態に復帰させる（工程（ｅ））。
ここでは竪型射出スリーブへの注湯方法を説明しているが、これに拘泥することなく、横型の射出スリーブへの給湯も同様に行なうことができる。 Here, a method of pouring the molten metal more gently in the injection sleeve will be described with reference to FIG.
First, the lower portion of the ladle is lowered into the injection sleeve S (step (b)) in accordance with the inclination angle of the injection sleeve S tilted by tilting the ladle (step (a)). Subsequently, the suction is stopped, the hot water supply port is opened and an inert gas is sent in, and the pressure in the ladle is increased to pour the molten metal into the injection sleeve (step (c)). Simultaneously with the start of pouring, the ladle is gradually raised to synchronize the rise of the molten metal surface in the injection sleeve S and the rise of the ladle, thereby keeping the molten metal drop height low and keeping the pouring quieter. Furthermore, since the discharge rate of the molten metal can be adjusted by arbitrarily changing the flow rate of the inert gas, air can be prevented from being caught in the molten metal M at the time of dropping, and is adjusted to the highest possible speed. Therefore, since the temperature of the molten metal is small and no air is mixed, an excellent molded product free from casting defects can be obtained. After the discharge of the molten metal M in the ladle is completed, the supply of the inert gas is stopped, the ladle is raised from the inside of the injection sleeve S (step (d)), and the ladle is returned from the tilted state to the vertical state (step ( e)).
Here, the pouring method for the vertical injection sleeve has been described, but the hot water supply to the horizontal injection sleeve can be performed in the same manner without being limited to this.

その後、ラドルを再び保持炉へ移送し、次のショットに備えて給湯作業を行なう。
以上が、本発明の実施例における給湯装置と、一連の注湯方法である。 Thereafter, the ladle is transferred again to the holding furnace, and hot water supply work is performed in preparation for the next shot.
The above is the hot water supply apparatus and the series of pouring methods in the embodiment of the present invention.

図７は、横型のダイカストマシン２００において、横型の射出スリーブ２１７への注湯を完了した状態を示す図である。注湯が完了すると即座に図示せぬ油圧回路から射出シリンダー２１６のヘッド側に圧油が送られ、ピストンヘッド２１５とそれに連結されるピストンロッド２１４、カップリング２１３、プランジャーロッド２１２、及びプランジャーチップ２１１が高速で前進し、射出スリーブ２１７に注湯された溶湯が金型のキャビティ２２２内へ射出充填される。溶湯の凝固冷却後、金型装置２０１が開かれ鋳造品が取り出されるとともに、プランジャーチップ２１１等は後退し、次の注湯に備えられる。   FIG. 7 is a diagram showing a state where pouring of the horizontal injection sleeve 217 is completed in the horizontal die casting machine 200. As soon as the pouring is completed, pressure oil is sent from the hydraulic circuit (not shown) to the head side of the injection cylinder 216, and the piston head 215 and the piston rod 214, coupling 213, plunger rod 212, and plunger connected thereto. The chip 211 advances at a high speed, and the molten metal poured into the injection sleeve 217 is injected and filled into the cavity 222 of the mold. After the molten metal is solidified and cooled, the mold apparatus 201 is opened and the cast product is taken out, and the plunger tip 211 and the like are retracted to prepare for the next pouring.

本発明の実施例に係る吸引開閉式ラドルユニットの縦断面図である。It is a longitudinal cross-sectional view of the suction opening-closing type ladle unit which concerns on the Example of this invention. 本発明の実施例に係る吸引開閉式給湯装置において、吸引前のラドルユニット及びエアー回路の状態を説明する図である。It is a figure explaining the state of the ladle unit and air circuit before suction in the suction opening-and-closing type hot-water supply apparatus concerning the example of the present invention. 本発明の実施例に係る吸引開閉式給湯装置において、吸引中のラドルユニット及びエアー回路の状態を説明する図である。In the suction opening-closing type hot-water supply apparatus which concerns on the Example of this invention, it is a figure explaining the state of the ladle unit and air circuit during suction. 本発明の実施例に係る吸引開閉式給湯装置において、湯面を検知した後給湯口を閉じ真空を保持している時のラドルユニット及びエアー回路の状態を説明する図である。In the suction opening-closing hot water supply apparatus which concerns on the Example of this invention, after detecting the hot_water | molten_metal surface, it is a figure explaining the state of a ladle unit and an air circuit when the hot-water supply port is closed and the vacuum is hold | maintained. 本発明の実施例に係る吸引開閉式給湯装置において、射出スリーブに注湯している時のラドルユニット及びエアー回路の状態を説明する図である。In the suction opening-and-closing type hot-water supply apparatus which concerns on the Example of this invention, it is a figure explaining the state of the ladle unit and the air circuit when pouring the injection sleeve. 本発明の実施例に係る射出スリーブへの注湯工程を示す説明図である。It is explanatory drawing which shows the pouring process to the injection sleeve which concerns on the Example of this invention. 本発明の実施例に係る横型のダイカストマシンにおける注湯完了後の状態を示す説明図であり、金型装置及び射出シリンダー付近の構成を示す。It is explanatory drawing which shows the state after the pouring completion in the horizontal type die-casting machine which concerns on the Example of this invention, and shows the structure of a mold apparatus and the injection cylinder vicinity. 従来の開放式ラドルにより、射出スリーブに注湯する状態を示す図である。It is a figure which shows the state which pours into an injection sleeve by the conventional open type ladle. 従来の底抜き式ラドルの中に、保持炉の溶湯を入れる状態を示す図である。It is a figure which shows the state which puts the molten metal of a holding furnace in the conventional bottomed-type ladle. 従来の底抜き式ラドルにより、射出スリーブに注湯する状態を示す図である。It is a figure which shows the state which pours into an injection sleeve with the conventional bottomed-type ladle. 従来の吸引式ラドルにより、保持炉の溶湯をラドル内に吸引する状態を示す図である。It is a figure which shows the state which attracts | sucks the molten metal of a holding furnace in a ladle with the conventional suction type ladle. 従来の吸引式ラドルにおいて、上昇途中の湯面を湯面検知電極が検知した後吸引を停止して湯面の上昇が止まった時の状態を示す図である。In the conventional suction-type ladle, it is a figure which shows a state when suction stops after the hot_water | molten_metal surface detection electrode detects the hot_water | molten_metal surface in the middle of a raise, and the raise of a hot_water | molten_metal surface stops.

符号の説明Explanation of symbols

１ ラドル
２ 射出スリーブ
３ プランジャーチップ
４ 弁棒
５ 溶湯出入口
６ シリンダー
７ 空気出入穴
８ 搬送用アーム
１１ 給湯用ラドル
１２ 底面板
１３ 導管
１４ 遮断板
１５ サポート
１６ 重量検知手段
１７ シール材
１８ 配管
１９ 開閉弁
２０ 真空吸引装置
２１ 開閉弁
２２ 不活性ガス供給装置
２３ 吸引口
２４ 蓋板
２５ 搬送用アーム
３１ ラドル要部
３２ 導管
３３ 重錘
３４ 湯面検知電極（給湯量検知用）
３５ 湯面検知電極（吸引位置検知用）
３６ シール材
３７ 吸引口
３８ 配管
３９ 開閉弁
４０ 真空吸引装置
４１ 開閉弁
４２ 不活性ガス供給装置
１００ ラドルユニット
１０５ 給湯口
１０８ 湯面検出手段
１１０ ラドル
１１０ａ 底面板
１１０ｂ 外筒
１１２ 導管
１１４ 遮断板
１１４ａ 水平円盤
１１４ｂ 堰板
１１６ 垂直棒
１１７ シール材
１１８ 蓋板
１１９ フランジ
１２０ 遮蔽板開閉シリンダー
１２１ サイレンサー
１２２ 保持用真空吸引バルブ
１２３ 高速用真空吸引バルブ
１２４ 保持吸引圧調整バルブ
１２５ 高速吸引圧調整バルブ
１２６ 溶湯供給速度調整バルブ
１２７ 真空度検出圧力センサー
１３１ 吸引口
１３２ 排出口
１３３ 接続部材
２００ 横型のダイカストマシンの要部
２０１ 金型装置
２０２ 射出シリンダー
２１１ プランジャーチップ
２１２ プランジャーロッド
２１３ カップリング
２１４ ピストンロッド
２１５ ピストンヘッド
２１６ 射出シリンダー
２１７ 射出スリーブ
２１８ 固定金型
２１９ 可動金型
２２０ 固定プラテン
２２１ 可動プラテン
２２２ キャビティ（空洞）
Ａ 開閉弁（吸引用）
Ｂ 開閉弁（保持吸引用）
Ｃ 開閉弁（高速吸引用）
Ｄ 切替弁（遮蔽板開閉シリンダー用）
Ｅ 開閉弁（不活性ガス供給用）
Ｍ 溶湯（溶融金属）
Ｆ 保持炉
Ｓ 射出スリーブ DESCRIPTION OF SYMBOLS 1 Ladle 2 Injection sleeve 3 Plunger tip 4 Valve rod 5 Molten metal inlet / outlet 6 Cylinder 7 Air inlet / outlet hole 8 Transfer arm 11 Hot water supply ladle 12 Bottom plate 13 Conduit 14 Blocking plate 15 Support 16 Weight detection means 17 Sealing material 18 Piping 19 Opening / closing Valve 20 Vacuum suction device 21 On-off valve 22 Inert gas supply device 23 Suction port 24 Cover plate 25 Transfer arm 31 Ladle main part 32 Conduit 33 Weight 34 Hot water level detection electrode (for detecting hot water supply amount)
35 Hot water level detection electrode (for suction position detection)
36 Sealing material 37 Suction port 38 Piping 39 Open / close valve 40 Vacuum suction device 41 Open / close valve 42 Inert gas supply device 100 Ladle unit 105 Hot water supply port 108 Hot water level detection means 110 Ladle 110a Bottom plate 110b Outer cylinder 112 Conduit 114 Blocking plate 114a Horizontal Disc 114b Dam plate 116 Vertical bar 117 Sealing material 118 Lid plate 119 Flange 120 Shielding plate open / close cylinder 121 Silencer 122 Holding vacuum suction valve 123 High speed vacuum suction valve 124 Holding suction pressure adjustment valve 125 High speed suction pressure adjustment valve 126 Molten metal supply speed Adjustment valve 127 Vacuum degree detection pressure sensor 131 Suction port 132 Discharge port 133 Connecting member 200 Main part of horizontal die casting machine 201 Mold device 202 Injection cylinder 211 Plunger tip 212 Ranger rod 213 coupling 214 piston rod 215 piston head 216 injection cylinder 217 injection sleeve 218 fixed mold 219 movable mold 220 fixed platen 221 movable platen 222 cavity (cavity)
A On-off valve (for suction)
B Open / close valve (for holding suction)
C On-off valve (for high speed suction)
D Switching valve (for shielding plate opening / closing cylinder)
E On-off valve (for supplying inert gas)
M Molten metal (molten metal)
F Holding furnace S Injection sleeve

Claims (7)

金型装置のキャビティ内へ溶融金属の溶湯を射出充填する射出スリーブへ溶湯を供給する給湯方法であって、
ラドルの下端部にある給湯口を開いた状態で前記給湯口の下側のみを保持炉の溶湯内に浸漬し、前記ラドル内の気体を真空吸引することにより保持炉の溶湯をラドル内に吸引し、前記ラドル内の溶湯の湯面が上昇して湯面検知手段が検知した時前記給湯口を閉じて、ラドル内への溶湯の取り込みを完了することを特徴とする給湯方法。
A hot water supply method for supplying molten metal to an injection sleeve for injecting and filling molten metal into a cavity of a mold apparatus,
With the hot water inlet at the lower end of the ladle open, only the lower side of the hot water inlet is immersed in the molten metal in the holding furnace, and the molten metal in the holding furnace is sucked into the ladle by vacuuming the gas in the ladle. The hot water supply method is characterized in that when the molten metal level in the ladle rises and the molten metal level detecting means detects the hot water supply port, the hot water supply port is closed to complete the introduction of the molten metal into the ladle.
請求項１に記載の給湯方法であって、
保持炉からラドル内への溶湯の吸引は、吸引開始時からは高真空による高速の吸引を行い、途中で低真空による低速の吸引に切り替えることを特徴とする給湯方法。
The hot water supply method according to claim 1,
The hot water supply method is characterized in that the suction of the molten metal from the holding furnace into the ladle is performed at a high speed by high vacuum from the start of suction and is switched to a low speed suction by low vacuum in the middle.
請求項１または２に記載の方法によりラドル内に溶湯を取り込んだ後、
真空吸引を保持した状態で、前記ラドルを保持炉から引き上げ射出スリーブまで移送し、真空吸引を停止するとともに前記給湯口を開き、不活性ガスをラドル内に供給して、射出スリーブ内に溶湯を注湯することを特徴とする給湯方法。
After taking the molten metal into the ladle by the method according to claim 1 or 2,
With the vacuum suction held, the ladle is pulled up from the holding furnace and transferred to the injection sleeve, the vacuum suction is stopped, the hot water supply port is opened, an inert gas is supplied into the ladle, and the molten metal is poured into the injection sleeve. A hot water supply method characterized by pouring hot water.
金型装置のキャビティ内へ溶融金属の溶湯を射出充填する射出スリーブへ溶湯を供給する給湯装置であって、
内部に溶湯を貯留するラドルと、前記ラドルの下端部に設けられ開閉可能な給湯口と、前記給湯口を開閉する給湯口開閉手段と、前記ラドルの上側に取り付けられた蓋板と、前記蓋板に支持されラドル内の溶湯の湯面を検知する湯面検知手段と、ラドル内の気体を吸引するため前記蓋板に設けられた吸引口に配管接続された吸引装置と、を備えたことを特徴とする給湯装置。
A hot water supply apparatus for supplying molten metal to an injection sleeve for injecting and filling molten metal into a cavity of a mold apparatus,
A ladle for storing molten metal therein, a hot water supply opening provided at a lower end portion of the ladle, a hot water supply opening / closing means for opening and closing the hot water supply opening, a lid plate attached to the upper side of the ladle, and the lid A hot water level detecting means that is supported by the plate and detects the level of the molten metal in the ladle, and a suction device that is connected to the suction port provided in the lid plate for sucking the gas in the ladle. Hot water supply device characterized by
請求項４に記載の給湯装置であって、
ラドルは、内部に溶湯を貯留する外筒と、前記外筒の下端と外周部が連続する底面板からなり、
給湯口は、前記底面板を貫通し底面板の上下方向に延在し外径が前記外筒の下部の内側よりも小さな円筒状の導管と、蓋板を貫通する垂直棒の下端に固設され外径が前記導管よりも大きい水平円盤と前記水平円盤の外周部に下垂する円筒状の堰板より構成される遮蔽板からなり、
給湯口開閉手段は、前記蓋板の上側で支持され、前記垂直棒の上端と接続し、前記垂直棒を上下に動作可能で、前記遮蔽板の水平円盤の下面を前記導管の上面に押し付けることにより給湯口を閉じ、前記遮蔽板の水平円盤の下面と前記導管の上面との間に隙間を設けることにより給湯口を開けることが可能な構造である、
ことを特徴とする給湯装置。
The hot water supply apparatus according to claim 4,
The ladle is composed of an outer cylinder that stores molten metal therein, and a bottom plate in which a lower end and an outer peripheral part of the outer cylinder are continuous,
A hot water supply port is fixed to a cylindrical conduit extending through the bottom plate and extending in the vertical direction of the bottom plate and having an outer diameter smaller than the inside of the lower portion of the outer cylinder, and a lower end of a vertical bar passing through the lid plate. And a shielding plate composed of a horizontal disk having an outer diameter larger than that of the conduit and a cylindrical weir plate hanging from the outer periphery of the horizontal disk,
The hot water supply opening / closing means is supported on the upper side of the lid plate, is connected to the upper end of the vertical bar, can move the vertical bar up and down, and presses the lower surface of the horizontal disk of the shielding plate against the upper surface of the conduit Is a structure that can open the hot water supply port by closing the hot water supply port by providing a gap between the lower surface of the horizontal disk of the shielding plate and the upper surface of the conduit,
A water heater characterized by that.
請求項４または５に記載の給湯装置であって、
溶湯を吸引する吸引装置は、開閉弁と高真空で高速用の吸引装置と低真空で保持用の吸引装置からなることを特徴とする給湯装置
The hot water supply apparatus according to claim 4 or 5,
A suction device for sucking molten metal comprises an on-off valve, a high vacuum and high speed suction device, and a low vacuum and holding suction device.
請求項４、５または６に記載の給湯装置であって、
ラドル内に不活性ガスを供給するため前記蓋板と配管接続された不活性ガス供給装置、を備えたことを特徴とする給湯装置。 The hot water supply device according to claim 4, 5 or 6,
A hot water supply apparatus, comprising: an inert gas supply device piped to the lid plate for supplying an inert gas into a ladle.
JP2007208702A 2007-08-10 2007-08-10 Suction open / close hot water supply method and hot water supply apparatus Expired - Fee Related JP5076724B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007208702A JP5076724B2 (en) 2007-08-10 2007-08-10 Suction open / close hot water supply method and hot water supply apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007208702A JP5076724B2 (en) 2007-08-10 2007-08-10 Suction open / close hot water supply method and hot water supply apparatus

Publications (2)

Publication Number Publication Date
JP2009039764A true JP2009039764A (en) 2009-02-26
JP5076724B2 JP5076724B2 (en) 2012-11-21

Family

ID=40441090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007208702A Expired - Fee Related JP5076724B2 (en) 2007-08-10 2007-08-10 Suction open / close hot water supply method and hot water supply apparatus

Country Status (1)

Country Link
JP (1) JP5076724B2 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011121060A (en) * 2009-12-08 2011-06-23 Ube Machinery Corporation Ltd Molten metal supplying apparatus and molten metal supplying method
JP2011200883A (en) * 2010-03-24 2011-10-13 Jatco Ltd Casting apparatus and casting method
EP2407260A1 (en) * 2010-07-14 2012-01-18 MELTEC Industrieofenbau GmbH Device and method for melt metering and casting machine
CN102935499A (en) * 2011-08-16 2013-02-20 苏州三基铸造装备股份有限公司 Soup cup matched with soup feeding machine
CN103521745A (en) * 2013-10-14 2014-01-22 南昌大学 Molten metal taking-injecting device
CN103521744A (en) * 2013-10-14 2014-01-22 南昌大学 Semisolid slurry receiving and injecting device
CN105014040A (en) * 2015-07-20 2015-11-04 广东科达洁能股份有限公司 Molten metal drawing device
CN105014041A (en) * 2015-07-20 2015-11-04 广东科达洁能股份有限公司 Vacuum molten metal taking equipment
CN105817612A (en) * 2016-04-25 2016-08-03 陈友乾 Automatic soup sucking machine and soup sucking method
CN107931591A (en) * 2017-11-07 2018-04-20 上海素朴智能设备制造有限公司 Liquid quantitative fetching device, control method, process and readable storage medium storing program for executing
CN108580863A (en) * 2018-07-18 2018-09-28 浙江鼎立实业有限公司 A kind of automatic aluminum water casting machine
CN113210583A (en) * 2020-02-05 2021-08-06 丰田自动车株式会社 Hot metal supply injection method and hot metal supply injection device
WO2023272331A1 (en) * 2021-07-02 2023-01-05 Fill Gesellschaft M.B.H. Casting installation and method for producing a cast workpiece

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103394666B (en) * 2013-05-31 2015-07-15 广东科达洁能股份有限公司 Slurry taking device
KR102409579B1 (en) * 2020-06-16 2022-06-16 대한민국 Compost maturity measuring device
KR102387415B1 (en) * 2020-06-16 2022-04-15 대한민국 Compost maturity measuring device using sensor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11285813A (en) * 1998-03-31 1999-10-19 Ube Ind Ltd Method for setting molten metal supplying quantity to ladle for supplying molten metal
JP2000218360A (en) * 1999-01-27 2000-08-08 Ube Ind Ltd Method and device for supplying molten metal
JP2002192330A (en) * 2000-12-25 2002-07-10 Aisin Takaoka Ltd Transport device for light molten metal and storage transport device for light molten metal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11285813A (en) * 1998-03-31 1999-10-19 Ube Ind Ltd Method for setting molten metal supplying quantity to ladle for supplying molten metal
JP2000218360A (en) * 1999-01-27 2000-08-08 Ube Ind Ltd Method and device for supplying molten metal
JP2002192330A (en) * 2000-12-25 2002-07-10 Aisin Takaoka Ltd Transport device for light molten metal and storage transport device for light molten metal

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011121060A (en) * 2009-12-08 2011-06-23 Ube Machinery Corporation Ltd Molten metal supplying apparatus and molten metal supplying method
JP2011200883A (en) * 2010-03-24 2011-10-13 Jatco Ltd Casting apparatus and casting method
CN103153501B (en) * 2010-07-14 2015-12-09 美尔泰克工业熔炉制造股份有限公司 For measuring apparatus and method and the casting machine of melt
KR101849287B1 (en) 2010-07-14 2018-04-16 멜텍 인두스트리오펜바우 게엠베하 Device and Method for Metering Molten Material and Casting Machine
WO2012007255A1 (en) 2010-07-14 2012-01-19 Meltec Industrieofenbau Gmbh Device and method for metering molten material and casting machine
CN103153501A (en) * 2010-07-14 2013-06-12 美尔泰克工业熔炉制造股份有限公司 Device and method for metering molten material and casting machine
EP3117933A1 (en) 2010-07-14 2017-01-18 MELTEC Industrieofenbau GmbH Device and method for metering molten material and casting machine
RU2584197C2 (en) * 2010-07-14 2016-05-20 Мельтек Индустриофенбау Гмбх Device and method for metering molten material and casting machine
EP2407260A1 (en) * 2010-07-14 2012-01-18 MELTEC Industrieofenbau GmbH Device and method for melt metering and casting machine
CN102935499A (en) * 2011-08-16 2013-02-20 苏州三基铸造装备股份有限公司 Soup cup matched with soup feeding machine
CN103521744A (en) * 2013-10-14 2014-01-22 南昌大学 Semisolid slurry receiving and injecting device
CN103521745A (en) * 2013-10-14 2014-01-22 南昌大学 Molten metal taking-injecting device
CN105014040A (en) * 2015-07-20 2015-11-04 广东科达洁能股份有限公司 Molten metal drawing device
CN105014041A (en) * 2015-07-20 2015-11-04 广东科达洁能股份有限公司 Vacuum molten metal taking equipment
CN105014040B (en) * 2015-07-20 2017-05-31 广东科达洁能股份有限公司 A kind of molten metal draws equipment
CN105817612A (en) * 2016-04-25 2016-08-03 陈友乾 Automatic soup sucking machine and soup sucking method
CN107931591A (en) * 2017-11-07 2018-04-20 上海素朴智能设备制造有限公司 Liquid quantitative fetching device, control method, process and readable storage medium storing program for executing
CN108580863A (en) * 2018-07-18 2018-09-28 浙江鼎立实业有限公司 A kind of automatic aluminum water casting machine
CN108580863B (en) * 2018-07-18 2023-07-25 浙江鼎立实业有限公司 Automatic molten aluminum casting machine
CN113210583A (en) * 2020-02-05 2021-08-06 丰田自动车株式会社 Hot metal supply injection method and hot metal supply injection device
WO2023272331A1 (en) * 2021-07-02 2023-01-05 Fill Gesellschaft M.B.H. Casting installation and method for producing a cast workpiece
AT525199A1 (en) * 2021-07-02 2023-01-15 Fill Gmbh Casting system and method for producing a cast workpiece

Also Published As

Publication number Publication date
JP5076724B2 (en) 2012-11-21

Similar Documents

Publication Publication Date Title
JP5076724B2 (en) Suction open / close hot water supply method and hot water supply apparatus
RU2584197C2 (en) Device and method for metering molten material and casting machine
EP3238858B1 (en) Low-pressure casting device and low-pressure casting method
JPH0647518A (en) Apparatus and method for casting by low pressure
JP5489065B2 (en) Hot water supply apparatus and hot water supply method
JP4075183B2 (en) Hot water supply method and hot water supply apparatus
JP4147612B2 (en) Hot water supply amount setting method and apparatus for hot water supply ladle
JP3622431B2 (en) Hot water supply ladle and hot water supply method
JPH1133696A (en) Device for supplying molten metal and method for supplying molten metal
JP2010089135A (en) Casting molten metal holding furnace
JPH11291015A (en) Method for supplying molten metal and device for supplying molten metal
JP2005118813A (en) Molten metal supplying method in die casting machine
JP3727444B2 (en) Differential pressure casting apparatus and differential pressure casting method
JP2008044008A (en) Low-pressure casting apparatus, and inert gas filling method
JPH1128560A (en) Molten metal supplying device and molten metal supplying method
JP2001205425A (en) Automatic molten metal feeder
JP3756040B2 (en) Metal molten metal dispensing device
JP7299619B2 (en) Method for detecting suspended matter on the surface of molten metal in low-pressure casting
JP7201393B2 (en) Suction hot water distribution device
JPS63194864A (en) Method for pouring molten metal
JPS63252667A (en) Device for pouring molten metal
JP2004058122A (en) Vacuum die-casting apparatus
JPH10244353A (en) Device for supplying molten metal
JPH10314920A (en) Ladle for supplying molten metal and method for supplying molten metal
JPH1015657A (en) Method and device for detecting molten metal surface in vacuum suction casting

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100708

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120518

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120522

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120711

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120731

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120813

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150907

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 5076724

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

LAPS Cancellation because of no payment of annual fees