JPH01271050A - Method and device for feeding molten metal - Google Patents
Method and device for feeding molten metalInfo
- Publication number
- JPH01271050A JPH01271050A JP9764088A JP9764088A JPH01271050A JP H01271050 A JPH01271050 A JP H01271050A JP 9764088 A JP9764088 A JP 9764088A JP 9764088 A JP9764088 A JP 9764088A JP H01271050 A JPH01271050 A JP H01271050A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- sleeve
- molten metal
- water supply
- liquid level
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 37
- 239000002184 metal Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims description 8
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 239000000463 material Substances 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000004512 die casting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 229910002110 ceramic alloy Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はダイカストマシーンの給湯方法及び装置のうち
、プランジャスリーブ側面に形成した給湯口を介して溶
湯を供給するようにしたコールドチャンバータイプのも
のに関する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a method and device for supplying hot water to a die-casting machine, and relates to a cold chamber type die-casting machine in which molten metal is supplied through a hot-water supply port formed on the side surface of a plunger sleeve. Regarding.
（従来の技術）
金型のキャビティ内に給湯を自動給湯する装置として特
開昭５２−１３３８２４号或いは特公昭６１−４１６６
２号に開示されるものが知られている。(Prior art) A device for automatically supplying hot water into the cavity of a mold is disclosed in Japanese Patent Application Laid-open No. 52-133824 or Japanese Patent Publication No. 61-4166.
The one disclosed in No. 2 is known.
これらの先行技術はいずれもプランジャスリーブの側面
に一端が保持炉内に臨む給湯管の他端を開口せしめ、保
持炉内の溶湯を加圧空気又は電磁ポンプでもってプラン
ジャスリーブ内に入れ、次いで設定時間経過後にプラン
ジャによってスリーブ内の溶湯をキャビティ内に押込む
ようにしている。In all of these prior art techniques, one end of the hot water supply pipe opens on the side of the plunger sleeve and the other end faces the holding furnace, and the molten metal in the holding furnace is introduced into the plunger sleeve using pressurized air or an electromagnetic pump, and then the setting process is performed. After a period of time, the plunger forces the molten metal in the sleeve into the cavity.
（発明が解決しようとする課題）
上述した従来装置にあっては、プランジャスリーブの側
面に開口した給湯口は、大径のプランジャが上動するこ
とで閉じるようになっている。(Problems to be Solved by the Invention) In the conventional device described above, the hot water supply port opened on the side surface of the plunger sleeve is closed by the upward movement of the large diameter plunger.
このためプランジャの動作開始のタイミングが少しずれ
ただけでも給湯量に大きな誤差が生じてしまう。For this reason, even a slight shift in the timing at which the plunger starts operating causes a large error in the amount of hot water supplied.
（課題を解決するための手段）
上記課題を解決すべく本発明は、プランジャスリーブ内
に充填された溶湯の液面を検出するセンサーと、このセ
ンサーからの信号によって給湯口を閉じるシールバルブ
を給湯装置に付設した。(Means for Solving the Problems) In order to solve the above problems, the present invention includes a sensor that detects the liquid level of molten metal filled in a plunger sleeve, and a seal valve that closes a hot water supply port based on a signal from this sensor. attached to the device.
（作用）
溶湯の液面をセンサーによって検出してプランジャスリ
ーブ内で溶湯の計量を行い、小径のシールバルブにより
給湯口を閉じるので、スムーズな作動が行われるととも
に常に正確な給湯量とすることができる。(Function) The liquid level of the molten metal is detected by a sensor, the molten metal is measured in the plunger sleeve, and the small-diameter seal valve closes the hot water supply port, ensuring smooth operation and always ensuring an accurate amount of hot water. can.
（実施例） 以下に本発明の実施例を添付図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the accompanying drawings.
第１図は本発明に係る給湯装置の断面図であり、溶湯Ｍ
を貯溜する保持炉ｌには加圧空気の給湯口２を形成する
とともに給湯管３の下半分を臨ませている。FIG. 1 is a sectional view of the water heater according to the present invention, and shows the molten metal M
A holding furnace 1 for storing water has a hot water supply port 2 for pressurized air, and the lower half of a hot water supply pipe 3 is exposed thereto.
一方、上型４と下型５間にはキャビティ６が形成され、
下型５にはキャビティ６に溶湯を送り込むためのプラン
ジャスリーブ７の上端部を取付け、このプランジャスリ
ーブ７の上端近傍の下型５内にはプランジャスリーブ７
内に充填された溶湯Ｍの液面を検出するセンサー８を埋
設し、更にプランジャスリーブ７には下方からシリンダ
ユニット９によって昇降動せしめられるプランジャ１０
を挿入している。On the other hand, a cavity 6 is formed between the upper mold 4 and the lower mold 5,
The upper end of a plunger sleeve 7 for feeding the molten metal into the cavity 6 is attached to the lower mold 5, and the plunger sleeve 7 is installed in the lower mold 5 near the upper end of the plunger sleeve 7.
A sensor 8 for detecting the liquid level of the molten metal M filled in the plunger sleeve 7 is embedded therein, and a plunger 10 that is moved up and down by a cylinder unit 9 from below is embedded in the plunger sleeve 7.
is inserted.
また、前記給湯管３とプランジャスリーブ７とはシール
スリーブ１１を介して連通している。即ちプランジヤス
リーブ７側面には小径のシールスリーブ１１が開口し、
シールスリーブ１１側面には給湯管３の上端が給湯口１
２として開口し、この給湯口１２をシリンダユニット１
３にて作動するシールバルブ１４で開閉するようにして
いる。Further, the hot water supply pipe 3 and the plunger sleeve 7 communicate with each other via a seal sleeve 11. That is, a small-diameter sealing sleeve 11 is opened on the side of the plunger sleeve 7,
On the side of the seal sleeve 11, the upper end of the hot water supply pipe 3 is located at the hot water supply port 1.
2, and this hot water supply port 12 is connected to the cylinder unit 1.
It is opened and closed by a seal valve 14 which is activated at 3.
ここでシールスリーブ１１は内側をサイアロイ等のセラ
ミックスリーブｌｌａとし、このセラミックスリーブｌ
ｌａの外側にＴｉ −６Ａ−４Ｖ或いはＴｉ−６Ａ−６
Ｖ−４Ｓ！１等のチタン合金スリーブｌｌｂを焼去めし
た二重構造となっている。このように内側をセラミック
スリーブｌｌａとすることで耐熱性及び摺動性が向上し
、外側を従来の鋼（ＳＫＤ６１相当）よりも熱膨張係数
が小さいチタン合金スリーブｌｌｂとすることで、スリ
ーブ１１の寿命が長くなる。つまりチタン合金は熱膨張
係数が小さく、高温（５６８〜６４０℃）まで圧縮応力
を維持でき、セラミックスリーブに無理な力がかからな
い、また、セラミック及びチタン合金共に断熱性に優れ
るため溶湯の温度が低下しにくく健全な鋳物が得られ、
更にスリーブ外周を冷却する必要もない。Here, the seal sleeve 11 has a ceramic sleeve lla made of sialoy or the like on the inside, and this ceramic sleeve lla.
Ti-6A-4V or Ti-6A-6 on the outside of la
V-4S! It has a double structure with a first-grade titanium alloy sleeve Ilb burnt off. In this way, by using the ceramic sleeve lla on the inside, heat resistance and sliding properties are improved, and by using the titanium alloy sleeve llb, which has a smaller coefficient of thermal expansion than conventional steel (equivalent to SKD61) on the outside, the sleeve 11 Longer lifespan. In other words, titanium alloy has a small coefficient of thermal expansion and can maintain compressive stress up to high temperatures (568 to 640 degrees Celsius), so no excessive force is applied to the ceramic sleeve.Also, both ceramic and titanium alloy have excellent heat insulation properties, which lowers the temperature of the molten metal. You can obtain healthy castings that are difficult to damage.
Furthermore, there is no need to cool the outer periphery of the sleeve.
以上の給湯装置による給湯方法を第２図のフローチャー
トに基づいて説明する。A hot water supply method using the above hot water supply apparatus will be explained based on the flowchart of FIG. 2.
まず上型４及び下型５を型締めして保持炉ｌに供給する
エア圧を設定したならば、溶湯Ｍをエア圧で加圧し、溶
湯Ｍを給湯管３、シールスリーブ１１を介してプランジ
ャスリーブ７内に充填スる。そして、センサー８がプラ
ンジャ７内の溶湯Ｍの液面を検出したならば直ちにシリ
ンダユニット３を作動させ、シールバルブ１４によって
給湯口１２を閉じる。First, after clamping the upper mold 4 and the lower mold 5 and setting the air pressure to be supplied to the holding furnace l, the molten metal M is pressurized with air pressure, and the molten metal M is passed through the hot water supply pipe 3 and the seal sleeve 11 to the plunger. The sleeve 7 is filled. Immediately when the sensor 8 detects the level of the molten metal M in the plunger 7, the cylinder unit 3 is activated and the seal valve 14 closes the hot water supply port 12.
次いでシールバルブ１４の前進端を確認したならば、シ
リンダユニット９によってプランジャ１０を上昇させ溶
湯Ｍをキャビティ６内に加圧供給する。またこれと同時
に保持炉ｌ内の溶湯Ｍの空気による加圧状態を解除する
。Next, when the forward end of the seal valve 14 is confirmed, the plunger 10 is raised by the cylinder unit 9 to supply the molten metal M into the cavity 6 under pressure. At the same time, the pressurized state of the molten metal M in the holding furnace 1 by air is released.
（発明の効果）
以上に説明した如く本発明によれば、プランジャスリー
ブと給湯管との間にシールバルブを設け、プランジャス
リーブ内の溶湯液面が一定の高さとなった時に当該シー
ルバルブによって給湯口を閉じるようにしたもので、ス
ムーズな作動が行われるとともに常に正確な量の溶湯を
自動供給することができる。(Effects of the Invention) As explained above, according to the present invention, a seal valve is provided between the plunger sleeve and the hot water supply pipe, and when the molten metal level in the plunger sleeve reaches a certain level, the seal valve operates to supply hot water. The mouth is closed, allowing smooth operation and always automatically dispensing the correct amount of molten metal.
また、プランジャスリーブ内の溶湯が再び保持炉又は給
湯管に逆流することがないので、溶湯の酸化を防止でき
る。Furthermore, since the molten metal in the plunger sleeve does not flow back into the holding furnace or the hot water supply pipe, oxidation of the molten metal can be prevented.
更に、スリーブを熱伝導率の低いものとすることで溶湯
の温度が低下しにくく、健全な鋳物が得られる。Furthermore, by making the sleeve low in thermal conductivity, the temperature of the molten metal is less likely to drop, and a sound casting can be obtained.
第１図は本発明に係る給湯装置の断面図、第２図は給湯
方法を示したフローチャートである。
尚、図面中、ｌは保持炉、３は給湯管、６はキャビティ
、７はプランジャスリーブ、８はセンサー、１０はプラ
ンジャ、１１はシールスリーブ、１２は給湯口、１４は
シールバルブ、Ｍは溶湯である。FIG. 1 is a sectional view of a hot water supply apparatus according to the present invention, and FIG. 2 is a flowchart showing a hot water supply method. In the drawings, l is a holding furnace, 3 is a hot water supply pipe, 6 is a cavity, 7 is a plunger sleeve, 8 is a sensor, 10 is a plunger, 11 is a seal sleeve, 12 is a hot water supply port, 14 is a seal valve, and M is a molten metal. It is.
Claims (3)
ャビティに連通し、側面に形成した給湯口を介して給湯
スリーブ内に摺動自在に嵌合するプランジャ上に保持炉
内の溶湯を給湯する給湯方法において、 前記給湯スリーブ内に、保持炉内の溶湯を給湯管及び給
湯口を介して加圧気体によって圧送充填し、予め所定湯
量位置に設置された溶湯液面センサーで充填された溶湯
の液面を検知した後前記給湯口をシールバルブを作動さ
せて閉じその後保持炉内の加圧気体の圧力を解放したこ
とを特徴とする給湯方法。(1) The upper part of the hot water supply sleeve, whose axis is directed in the vertical direction, communicates with the cavity, and the molten metal in the holding furnace is fed onto the plunger that is slidably fitted into the hot water supply sleeve through the hot water supply port formed on the side. In the hot water supply method, the molten metal in the holding furnace is charged into the hot water supply sleeve by pressurized gas through the hot water supply pipe and the hot water supply port, and the molten metal is filled with a molten metal liquid level sensor installed in advance at a predetermined hot water amount position. A method for supplying hot water, characterized in that after detecting the liquid level of the hot water, the hot water supply port is closed by operating a seal valve, and then the pressure of the pressurized gas in the holding furnace is released.
ャビティに連通し、側面に形成した給湯口を介して給湯
スリーブ内に摺動自在に嵌合するプランジャ上に保持炉
内の溶湯を給湯する給湯方法において、 前記給湯スリーブ側面に、給湯管と連通し前記給湯口を
閉じるシールバルブを設け、 前記シールバルブは内周がセラミックスチタン合金等の
熱伝導率の低い材料で形成されたシールスリーブ内を摺
動することを特徴とする給湯装置。(2) The upper part of the hot water supply sleeve, whose axis is directed in the vertical direction, communicates with the cavity, and the molten metal in the holding furnace is fed onto the plunger that is slidably fitted into the hot water supply sleeve through the hot water supply port formed on the side. In the hot water supply method, a seal valve that communicates with the hot water supply pipe and closes the hot water supply port is provided on a side surface of the hot water supply sleeve, and the seal valve has an inner periphery formed of a material with low thermal conductivity such as a ceramic titanium alloy. A water heater characterized by sliding movement inside.
がチタン合金からなるシールスリーブ内を摺動すること
を特徴とする請求項２に記載の給湯装置。(3) The water heater according to claim 2, wherein the seal valve slides within a seal sleeve whose inner circumference is made of ceramic and whose outer circumference is made of titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9764088A JPH01271050A (en) | 1988-04-20 | 1988-04-20 | Method and device for feeding molten metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9764088A JPH01271050A (en) | 1988-04-20 | 1988-04-20 | Method and device for feeding molten metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01271050A true JPH01271050A (en) | 1989-10-30 |
Family
ID=14197730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9764088A Pending JPH01271050A (en) | 1988-04-20 | 1988-04-20 | Method and device for feeding molten metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01271050A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04253556A (en) * | 1991-01-30 | 1992-09-09 | Ube Ind Ltd | Die casting device |
| JP6308695B1 (en) * | 2016-12-07 | 2018-04-11 | 株式会社ソディック | Injection molding machine |
| US11904385B2 (en) | 2019-05-17 | 2024-02-20 | Shibaura Machine Co., Ltd. | Die casting machine |
| US11925975B2 (en) | 2019-05-17 | 2024-03-12 | Shibaura Machine Co., Ltd. | Die casting machine |
-
1988
- 1988-04-20 JP JP9764088A patent/JPH01271050A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04253556A (en) * | 1991-01-30 | 1992-09-09 | Ube Ind Ltd | Die casting device |
| JP6308695B1 (en) * | 2016-12-07 | 2018-04-11 | 株式会社ソディック | Injection molding machine |
| US11904385B2 (en) | 2019-05-17 | 2024-02-20 | Shibaura Machine Co., Ltd. | Die casting machine |
| US11925975B2 (en) | 2019-05-17 | 2024-03-12 | Shibaura Machine Co., Ltd. | Die casting machine |
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