JPH0331490Y2 - - Google Patents
Info
- Publication number
- JPH0331490Y2 JPH0331490Y2 JP1987023947U JP2394787U JPH0331490Y2 JP H0331490 Y2 JPH0331490 Y2 JP H0331490Y2 JP 1987023947 U JP1987023947 U JP 1987023947U JP 2394787 U JP2394787 U JP 2394787U JP H0331490 Y2 JPH0331490 Y2 JP H0331490Y2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- pressure chamber
- hot water
- water supply
- sensor
- 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.)
- Expired
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案はアルミニウム合金などの溶湯をダイ
カスト機械などに供給する金属給湯炉の吐出制御
装置に関する。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a discharge control device for a metal hot water supply furnace that supplies molten metal such as aluminum alloy to a die-casting machine or the like.
（従来の技術とその問題点）
この種の金属給湯炉として、従来より特公昭51
−36704号公報に記載のものや、特許出願公表昭
55−500546号公報に記載のものなどが知られてい
る。(Conventional technology and its problems) As this type of metal hot water furnace,
-Those described in Publication No. 36704 and the patent application publication
The one described in Japanese Patent No. 55-500546 is known.
ところが、前者の給湯炉では、溶湯を蓄える保
持室内に圧縮ガスを送り込むことにより溶湯を保
持室の吐出口より圧送するように構成されている
ため、保持室内の比較的大きい空間全体の気圧を
上昇させるのに圧縮ガスの供給装置が大型化し、
また良好な精度が得られないという欠点がある。 However, in the former type of hot water furnace, the molten metal is pumped through the discharge port of the holding chamber by sending compressed gas into the holding chamber that stores the molten metal, which increases the air pressure in the entire relatively large space inside the holding chamber. The compressed gas supply equipment has become larger in order to
Another disadvantage is that good accuracy cannot be obtained.
これに対し後者の給湯炉の場合、保持室に隣接
して別に圧力室を設けてこれに保持室から溶湯を
供給し、この圧力室に圧縮ガスを送り込むことに
より溶湯を圧力室の吐出口より圧送するように構
成されているため、圧縮ガスの供給装置を小型化
できる。第２図はこの給湯炉の概略の構成を示す
縦断面図であつて、保持室１と圧力室２とは隔壁
３により区画されていて、その間には保持室１か
ら圧力室２へ溶湯を補給するための補給路４が形
成されている。この補給路４にはスライド５が設
けられ、このスライド５が上動すると上記補給路
４が開放され下動すると閉鎖されるように構成さ
れている。 On the other hand, in the case of the latter type of water heating furnace, a separate pressure chamber is provided adjacent to the holding chamber, molten metal is supplied from the holding chamber to this, and compressed gas is sent into this pressure chamber to allow the molten metal to be released from the outlet of the pressure chamber. Since the compressed gas is configured to be fed under pressure, the compressed gas supply device can be downsized. FIG. 2 is a vertical cross-sectional view showing the general structure of this hot water supply furnace, in which a holding chamber 1 and a pressure chamber 2 are separated by a partition wall 3, and a molten metal is transferred from the holding chamber 1 to the pressure chamber 2 between them. A supply path 4 for replenishing is formed. This supply path 4 is provided with a slide 5, and when the slide 5 moves upward, the supply path 4 is opened, and when it moves downward, it is closed.
この給湯炉では、保持室１に蓄えられている溶
湯６が、スライド５の上動により開放される補給
路４を経て圧力室２内に保持室１と同一湯面レベ
ルにまで充填され、つぎに、スライド５の下動に
より補給路４が閉鎖されると、図示しないシリン
ダにより管路７を経て圧力室２内へガスが供給さ
れ、このガスに押されて圧力室２内の溶湯６が圧
力室２に連通する立上り管８より吐出口９を経
て、図示しないダイカスト機械のホツパーなどへ
供給される。供給される溶湯量は、前記シリンダ
から圧力室２へ供給するガス量を調整することに
より毎回一定量に制御される。溶湯６の供給が終
了すると、スライド５が再び上動して前記と同じ
動作が繰り返される。 In this hot water supply furnace, the molten metal 6 stored in the holding chamber 1 is filled into the pressure chamber 2 through the supply path 4 opened by the upward movement of the slide 5 to the same level as the holding chamber 1, and then When the supply channel 4 is closed by the downward movement of the slide 5, gas is supplied into the pressure chamber 2 through the pipe 7 by a cylinder (not shown), and the molten metal 6 in the pressure chamber 2 is pushed by this gas. It is supplied from a riser pipe 8 communicating with the pressure chamber 2 through a discharge port 9 to a hopper or the like of a die-casting machine (not shown). The amount of molten metal supplied is controlled to be a constant amount each time by adjusting the amount of gas supplied from the cylinder to the pressure chamber 2. When the supply of the molten metal 6 is finished, the slide 5 moves upward again and the same operation as described above is repeated.
しかしながら、この給湯炉での吐出制御の場
合、毎回の溶湯供給における圧力室２へのガスの
供給量が仮に一定であるとすると、出湯量を常に
一定に制御するためには保持室１内の溶湯６の湯
面は常に一定レベルでなければならない。このた
め、保持室１の湯面を常に一定に保つように出湯
量に応じた溶湯を逐次補給するための別の装置が
必要となる。またフロート等で保持室１の湯面を
検出して、そのレベル低下に応じてガス供給量を
漸次増加するなどの方法も考えられるが、保持室
１内の溶湯量の変化に追従してガスの供給量を精
度良く制御することは実際上容易でなく、また精
密な制御系が必要となる。 However, in the case of discharge control in this hot water supply furnace, assuming that the amount of gas supplied to the pressure chamber 2 is constant in each molten metal supply, it is necessary to The surface of the molten metal 6 must always be at a constant level. For this reason, another device is required for sequentially replenishing molten metal in accordance with the amount of hot water discharged so as to keep the hot water level in the holding chamber 1 constant. It is also possible to use a float or the like to detect the molten metal level in the holding chamber 1 and gradually increase the amount of gas supplied as the level decreases. In practice, it is not easy to control the supply amount with high precision, and a precise control system is required.
（考案の目的）
この考案は、上記従来技術の問題点を解決する
ためになされたもので、複雑な制御手段を用いる
ことなく、保持室内の溶湯量の増減などに左右さ
れずに毎回精度の良い溶湯供給を行なうことので
きる金属給湯炉の吐出制御装置を提供することを
目的とする。(Purpose of the invention) This invention was made to solve the above-mentioned problems of the conventional technology. It does not require complicated control means and is not affected by changes in the amount of molten metal in the holding chamber. It is an object of the present invention to provide a discharge control device for a metal hot water supply furnace that can provide good molten metal supply.
（目的を達成するための手段）
上記目的を達成するため、この考案は、溶湯を
蓄える保持室と、この保持室と区画して設けら
れ、補給路を経て保持室より溶湯が補給される圧
力室と、この圧力室とガス供給源とを結ぶ管路と
を備え、この管路より供給されるガスの圧力によ
り前記圧力室の吐出口より圧力室内の溶湯を送出
するようにした金属給湯炉の吐出制御装置におい
て、前記補給路に給湯コツクを開閉自在に設ける
とともに、前記圧力室内の溶湯の湯面が前記保持
室内の溶湯の湯面よりも低い第１の高さ位置に達
したことを検知する第１のセンサと、前記圧力室
内の溶湯の湯面が前記第１の高さ位置よりも所定
高さだけ低い第２の高さ位置に達したことを検知
する第２のセンサと、前記所定高さを可変設定す
るセンサ検知高さ可変機構とを設け、前記給湯コ
ツクを開いて前記圧力室内に溶湯を給湯開始後、
前記第１のセンサの検知出力に応答して前記給湯
コツクを閉じて給湯停止し、しかる後前記第２の
センサの検知出力があるまで前記管路を通じて前
記圧力室内にガスを供給することにより、前記所
定高さにより予め設定された量だけ溶湯を吐出口
から送出するように構成している。(Means for achieving the purpose) In order to achieve the above purpose, this invention has a holding chamber that stores molten metal, and a pressure chamber that is separated from this holding chamber and is supplied with molten metal from the holding chamber via a supply path. A metal hot water supply furnace comprising a chamber and a conduit connecting the pressure chamber and a gas supply source, the molten metal in the pressure chamber being discharged from the discharge port of the pressure chamber by the pressure of the gas supplied from the conduit. In the discharge control device, a hot water supply pot is provided in the supply path so as to be freely openable and closable, and a hot water supply pot is provided in the supply path, and is configured to detect when the level of the molten metal in the pressure chamber has reached a first height position lower than the level of the molten metal in the holding chamber. a first sensor that detects, and a second sensor that detects that the molten metal level in the pressure chamber has reached a second height position that is lower than the first height position by a predetermined height; a sensor detection height variable mechanism for variably setting the predetermined height, and after opening the hot water supply pot and starting supplying molten metal into the pressure chamber,
In response to the detection output of the first sensor, the hot water supply pot is closed to stop the hot water supply, and then, by supplying gas into the pressure chamber through the pipe line until there is a detection output of the second sensor, The molten metal is configured to be sent out from the discharge port in a preset amount based on the predetermined height.
（実施例）
第１図はこの考案の一実施例である吐出制御装
置が適用されている金属給湯炉の全体の概略図を
示す。(Embodiment) FIG. 1 shows an overall schematic diagram of a metal hot water supply furnace to which a discharge control device according to an embodiment of the present invention is applied.
この金属給湯炉の本体側は先述した特許出願公
表昭55−500546号公報に記載の従来例とほぼ同様
の構成であり、加熱ヒータ１０で適温に保たれる
溶湯６を蓄える保持室１の隣に、隔壁３を介して
保持室１と区画された圧力室２が設けられ、その
間に形成される補給路４を経て保持室１内の溶湯
６を圧力室２に補給するように構成されている。
この補給路４は給湯コツク１１で閉鎖され、この
コツク１１を例えば所定量回動することによりコ
ツク１１側に設けられた上部溝と隔壁３側に設け
られた下部溝とが一致し、補給路４を開放できる
ようになつている。なお、コツク１１を上方へ動
かすことにより補給路４を開放するようにしても
よい。圧力室２に連通する立上り管８の出口は吐
出口９となつている。 The main body side of this metal hot water supply furnace has almost the same structure as the conventional example described in the aforementioned patent application publication No. 55-500546, and is adjacent to the holding chamber 1 which stores the molten metal 6 which is kept at an appropriate temperature by the heater 10. A pressure chamber 2 is provided which is separated from the holding chamber 1 by a partition wall 3, and the molten metal 6 in the holding chamber 1 is supplied to the pressure chamber 2 through a supply path 4 formed therebetween. There is.
This supply channel 4 is closed by a hot water supply pot 11, and by rotating this pot 11 by a predetermined amount, for example, the upper groove provided on the pot 11 side and the lower groove provided on the partition wall 3 side are aligned, and the supply channel 4 is closed by a hot water supply pot 11. 4 can now be opened. Note that the supply path 4 may be opened by moving the pot 11 upward. The outlet of the riser pipe 8 communicating with the pressure chamber 2 is a discharge port 9.
また圧力室２に連通する給排気管１２は、吐出
制御装置１３の管路１４に接続され、この管路１
４のうち外気に開放される排気管路１４ａの途中
には、排気用電磁弁１５が設けられている。上記
管路１４のうち図示しないガス供給源である例え
ばガスボンベに接続される給気管路１４ｂの途中
には給気用電磁弁１６が設けられ、この給気用電
磁弁１６より上流側の給気管路１４ｂには圧力計
１７および圧力設定弁１８が設けられている。 Further, the supply/exhaust pipe 12 communicating with the pressure chamber 2 is connected to a pipe line 14 of a discharge control device 13.
An exhaust electromagnetic valve 15 is provided in the middle of an exhaust pipe line 14a which is open to the outside air. An air supply solenoid valve 16 is provided in the middle of the air supply pipe 14b that is connected to a gas supply source (not shown), such as a gas cylinder, in the pipe line 14, and the air supply pipe is located upstream of the air supply solenoid valve 16. A pressure gauge 17 and a pressure setting valve 18 are provided in the passage 14b.
一方、圧力室２内には、圧力室２内の溶湯６の
湯面が保持室１内の溶湯６の湯面よりも低い第１
の高さ位置P1に達したことを検知する第１のセ
ンサ１９と、圧力室２内の溶湯６の湯面が前記第
１の高さ位置P1よりも所定高さH1だけ低い第２
の高さ位置P2に達したことを検知する第２のセ
ンサ２０とが設けられている。これら第１および
第２のセンサ１９，２０は例えば、耐熱性に優れ
た導電性セラミツクスから成る電極棒を用い、こ
れに通電して金属溶湯との接触／非接触による電
流の導通／遮断を調べるようにしてもよい。この
実施例では第１のセンサ１９は第１の高さ位置
P1に固定、第２のセンサ２０は駆動モータ２１
による昇降により高さ位置調整可能とされてお
り、制御部２２に昇降指令信号を与えて第２の高
さ位置P2を適当に調整することにより所定高さ
H1は可変となつている。また前述した給湯コツ
ク１１は駆動モータ２３による回動または昇降に
より開閉自在とされており、制御部２２は吐出指
令信号に応じて吐出口９からの出湯を行なうと
き、前記第１および第２のセンサ１９，２０の検
知出力を監視しつつ、以下に述べるように駆動モ
ータ２３、排気用電磁弁１５および給気用電磁弁
１６のON／OFFタイミング制御を行なう。 On the other hand, in the pressure chamber 2, there is a first tank where the level of the molten metal 6 in the pressure chamber 2 is lower than the level of the molten metal 6 in the holding chamber 1.
a first sensor 19 that detects that the level of the molten metal 6 in the pressure chamber 2 has reached the height position P 1 ; 2
A second sensor 20 is provided to detect when the height position P 2 has been reached. These first and second sensors 19 and 20 use, for example, electrode rods made of conductive ceramics with excellent heat resistance, and conduction/interruption of current due to contact/non-contact with the molten metal is checked by applying current to the electrode rods. You can do it like this. In this embodiment, the first sensor 19 is located at a first height position.
Fixed at P 1 , the second sensor 20 is connected to the drive motor 21
The height position can be adjusted by raising and lowering the second height position P2 by giving a raising and lowering command signal to the control unit 22 and adjusting the second height position P2 appropriately.
H 1 is variable. Further, the above-mentioned hot water supply pot 11 can be opened and closed by rotation or elevation by a drive motor 23, and the control section 22 controls the first and second points when discharging hot water from the discharge port 9 in accordance with a discharge command signal. While monitoring the detection outputs of the sensors 19 and 20, ON/OFF timing control of the drive motor 23, exhaust solenoid valve 15, and air supply solenoid valve 16 is performed as described below.
次に吐出制御装置１３による吐出制御動作につ
いて説明する。まず制御部２２は駆動モータ２３
に指令を与えて給湯コツク１１を回動または上昇
させ、補給路４を開放する。これにより保持室１
内の溶湯６は、補給路４を経て圧力室２内へ流入
する。このとき排気用電磁弁１５は開、給気用電
磁弁１６は閉とされる。制御部２２は第１のセン
サ１９の検知出力を監視しており、圧力室２内の
溶湯６の湯面が第１の高さ位置P1に達して第１
のセンサ１９の先端に接触し、該第１のセンサ１
９から接触検知出力が得られると、制御部２２は
駆動モータ２３に指令を与えて給湯コツク１１を
逆回動または下降させ、補給路４を閉鎖する。こ
れにより保持室１から圧力室２への給湯が停止さ
れる。このとき同時に、制御部２２は排気用電磁
弁１５に指令を与えてこれを閉鎖する。 Next, the discharge control operation by the discharge control device 13 will be explained. First, the control unit 22 controls the drive motor 23
A command is given to rotate or raise the hot water supply pot 11, and the supply path 4 is opened. As a result, holding chamber 1
The molten metal 6 inside flows into the pressure chamber 2 via the supply path 4. At this time, the exhaust solenoid valve 15 is opened and the air supply solenoid valve 16 is closed. The control unit 22 monitors the detection output of the first sensor 19, and when the surface of the molten metal 6 in the pressure chamber 2 reaches the first height position P1 ,
The tip of the sensor 19 of the first sensor 1
When a contact detection output is obtained from 9, the control section 22 gives a command to the drive motor 23 to reversely rotate or lower the hot water supply pot 11, and close the supply path 4. As a result, hot water supply from the holding chamber 1 to the pressure chamber 2 is stopped. At the same time, the control section 22 gives a command to the exhaust electromagnetic valve 15 to close it.
次に吐出指令信号が与えられると、制御部２２
は給気用電磁弁１６に指令を与えてこれを開放
し、圧力設定弁１８により設定された一定圧力の
図示しないガスボンベからのガスを圧力室２内へ
導入する。これにより圧力室２内の溶湯は押し下
げられ、立上り管８および吐出口９を経て出湯さ
れる。このとき制御部２２は第２のセンサ２０の
検知出力を監視しており、圧力室２内の溶湯６の
湯面が第２の高さ位置P2に達して第２のセンサ
１９の先端から離隔し、該第２のセンサ１９から
離隔検知信号が得られると、制御部２２は給気用
電磁弁１６に指令を与えてこれ閉鎖し、圧力室２
からの溶湯６の出湯を停止する。このときの溶湯
６の出湯量は、圧力室２の高さH1に相当する容
積から立上り管８の高さH2に相当する容積を減
じたものであり、例えば遠隔操作により制御部２
２に昇降指令を与えて第２のセンサ２０を昇降さ
せ、高さH1を予め適当に調整しておくことによ
り自在に変化させることができる。 Next, when a discharge command signal is given, the control section 22
gives a command to the air supply electromagnetic valve 16 to open it, and gas from a gas cylinder (not shown) having a constant pressure set by the pressure setting valve 18 is introduced into the pressure chamber 2. As a result, the molten metal in the pressure chamber 2 is pushed down and is discharged through the riser pipe 8 and the discharge port 9. At this time, the control unit 22 monitors the detection output of the second sensor 20, and when the surface of the molten metal 6 in the pressure chamber 2 reaches the second height position P2 , When they are separated and a separation detection signal is obtained from the second sensor 19, the control unit 22 gives a command to the air supply solenoid valve 16 to close it, and the pressure chamber 2
The dispensing of molten metal 6 from the molten metal 6 is stopped. The amount of molten metal 6 to be discharged at this time is the volume equivalent to the height H 1 of the pressure chamber 2 minus the volume equivalent to the height H 2 of the riser pipe 8.
The second sensor 20 can be raised and lowered by giving a raising/lowering command to the sensor 2, and the height H1 can be freely changed by appropriately adjusting the height H1 in advance.
吐出口９からの出湯が完了すると、制御部２２
は排気用電磁弁１５に指令を与えてこれを開放す
るとともに、駆動モータ２３に指令を与えて給湯
コツク１１を回動または上昇させ、補給路４を開
放して前述したように第１の高さ位置P1まで溶
湯６を圧力室２内へ導入する。そして排気用電磁
弁１５を閉鎖した上で次の吐出指令信号を待機
し、以後この動作が繰り返される。 When the hot water from the discharge port 9 is completed, the control unit 22
gives a command to the exhaust electromagnetic valve 15 to open it, and also gives a command to the drive motor 23 to rotate or raise the hot water supply pot 11, opening the supply path 4 and raising it to the first height as described above. The molten metal 6 is introduced into the pressure chamber 2 up to the position P1 . Then, after closing the exhaust solenoid valve 15, the next discharge command signal is waited for, and this operation is repeated thereafter.
（考案の効果）
以上説明したように、この考案によれば、圧力
室内の第１および第２の高さ位置に設けた第１お
よび第２のセンサにより出湯量を規定しているの
で、保持室内の溶湯の湯面が変化しても出湯量は
常に一定であり、湯面変化に伴う例えばフロート
などの湯面追跡装置などが不要となる。また圧力
室から少々のガス洩れがあつても出湯量は一定で
あるので、圧力室のシール構造が容易となる上、
ガス圧やガス供給量を厳密に制御する必要がなく
なるので、ガス供給装置が簡単なものとなる。し
たがつて、複雑な制御手段を用いることなく、保
持室内の溶湯量の増減に左右されずに毎回精度の
良い溶湯供給を行うことができる。更に、所定高
さを可変設定するセンサ検知高さ可変機構を設け
ているので、出湯量の正確さを失うことなく出湯
量を簡単に調整することができる。(Effects of the invention) As explained above, according to this invention, the amount of hot water is regulated by the first and second sensors provided at the first and second height positions in the pressure chamber, so the amount of hot water is maintained. Even if the molten metal level in the room changes, the amount of hot water that comes out is always constant, and there is no need for a molten metal level tracking device such as a float to keep up with changes in the molten metal level. In addition, even if a small amount of gas leaks from the pressure chamber, the amount of hot water that comes out is constant, making it easier to seal the pressure chamber.
Since there is no need to strictly control the gas pressure or gas supply amount, the gas supply device becomes simple. Therefore, the molten metal can be supplied with high accuracy every time without using complicated control means and regardless of the increase or decrease in the amount of molten metal in the holding chamber. Furthermore, since a sensor detection height variable mechanism for variably setting a predetermined height is provided, the amount of hot water dispensed can be easily adjusted without losing the accuracy of the amount of hot water dispensed.
第１図はこの考案の一実施例である吐出制御装
置が適用されている金属給湯炉の全体の概略図、
第２図は従来例の断面図である。
１……保持室、２……圧力室、４……補給路、
６……溶湯、１１……給湯コツク、１２……給排
気管、１３……吐出制御装置、１５……排気用電
磁弁、１６……給気用電磁弁、１９……第１のセ
ンサ、２０……第２のセンサ、２２……制御部、
P1……第１の高さ位置、P2……第２の高さ位置。
FIG. 1 is an overall schematic diagram of a metal hot water supply furnace to which a discharge control device, which is an embodiment of this invention, is applied;
FIG. 2 is a sectional view of a conventional example. 1...Holding chamber, 2...Pressure chamber, 4...Supply route,
6... Molten metal, 11... Hot water supply pot, 12... Supply and exhaust pipe, 13... Discharge control device, 15... Solenoid valve for exhaust, 16... Solenoid valve for air supply, 19... First sensor, 20...second sensor, 22...control unit,
P1 ...first height position, P2 ...second height position.
Claims (1)
設けられ、補給路を経て保持室より溶湯が補給さ
れる圧力室と、この圧力室とガス供給源とを結ぶ
管路とを備え、この管路より供給されるガスの圧
力により前記圧力室の吐出口より圧力室内の溶湯
を送出するようにした金属給湯炉において、 前記補給路に開閉自在に設けられた給湯コツク
と、前記圧力室内の溶湯の湯面が前記保持室内の
溶湯の湯面よりも低い第１の高さ位置に達したこ
とを検知する第１のセンサと、前記圧力室内の溶
湯の湯面が前記第１の高さ位置よりも所定高さだ
け低い第２の高さ位置に達したことを検知する第
２のセンサと、前記所定高さを可変設定するセン
サ検知高さ可変機構とを備え、前記給湯コツクを
開いて前記圧力室内に溶湯を給湯開始後、前記第
１のセンサの検知出力に応答して前記給湯コツク
を閉じて給湯停止し、しかる後前記第２のセンサ
の検知出力があるまで前記管路を通じて前記圧力
室内にガスを供給することにより、前記所定高さ
により予め設定された量だけ溶湯を吐出口から送
出するようにしたことを特徴とする金属給湯炉の
吐出制御装置。[Scope of Claim for Utility Model Registration] A holding chamber that stores molten metal, a pressure chamber that is separated from the holding chamber and is supplied with molten metal from the holding chamber via a supply path, and a gas supply source that connects the pressure chamber and the gas supply source. In a metal hot water supply furnace, the molten metal in the pressure chamber is sent out from the discharge port of the pressure chamber by the pressure of the gas supplied from the pipe, the supply line being provided in the supply line so as to be openable and closable. a first sensor for detecting that the level of the molten metal in the pressure chamber has reached a first height position lower than the level of the molten metal in the holding chamber; a second sensor that detects that the surface has reached a second height position that is lower than the first height position by a predetermined height; and a sensor detection height variable mechanism that variably sets the predetermined height. After opening the hot water supply pot and starting supplying molten metal into the pressure chamber, the hot water supply pot is closed to stop the hot water supply in response to the detection output of the first sensor, and then the second sensor detects the hot water supply. A discharge of a metal hot water supply furnace characterized in that a predetermined amount of molten metal is delivered from a discharge port according to the predetermined height by supplying gas into the pressure chamber through the conduit until an output is generated. Control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987023947U JPH0331490Y2 (en) | 1987-02-19 | 1987-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987023947U JPH0331490Y2 (en) | 1987-02-19 | 1987-02-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63133871U JPS63133871U (en) | 1988-09-01 |
| JPH0331490Y2 true JPH0331490Y2 (en) | 1991-07-04 |
Family
ID=30822727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987023947U Expired JPH0331490Y2 (en) | 1987-02-19 | 1987-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0331490Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0756117Y2 (en) * | 1989-05-23 | 1995-12-25 | 株式会社広築 | Pressure pouring furnace |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5141850B2 (en) * | 1972-04-28 | 1976-11-12 | ||
| JPS5597865A (en) * | 1979-01-17 | 1980-07-25 | Mitsubishi Electric Corp | Pouring control unit of pressure type automatic pouring furnace |
-
1987
- 1987-02-19 JP JP1987023947U patent/JPH0331490Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63133871U (en) | 1988-09-01 |
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