JPH0148111B2 - - Google Patents
Info
- Publication number
- JPH0148111B2 JPH0148111B2 JP58129670A JP12967083A JPH0148111B2 JP H0148111 B2 JPH0148111 B2 JP H0148111B2 JP 58129670 A JP58129670 A JP 58129670A JP 12967083 A JP12967083 A JP 12967083A JP H0148111 B2 JPH0148111 B2 JP H0148111B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- ladle
- pouring
- tilted
- set value
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Description
【発明の詳細な説明】
本発明は扇型取鍋による自動注湯の制御方法に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling automatic pouring using a fan-shaped ladle.
従来、鋳型に溶湯を注湯する場合、溶湯を満た
した取鍋をハンドルにより手動で傾動させながら
鋳型キヤビテイにおける溶湯流入口の溶湯レベル
を見ながら、その溶湯レベルを最適の状態に保ち
つゝ加減しながら注湯していたが、しかしこの作
業は熟練を要するうえに、高熱と粉塵等のために
作業環境が悪く、作業者にとつて重労働であり、
かつ安全衛生上からも問題があつた。そして、こ
の苛酷な作業から解放するため、ポツト式、扇型
式等の自動注湯装置が開発されているが、これら
はいずれも、注湯速度が一定値に設定してあつて
速度制御ができないため、取鍋の注湯口の周壁に
スラグが付着したり、或いは何らかの原因によ
り、取鍋内の溶湯面が波をうつたり、撹乱したり
した場合、溶湯の流出速度が設定値通りにならず
に不適正な注湯速度となり、その結果鋳型内への
溶湯の過不足を生ずる恐れがある。したがつて、
作業者が常に注湯状態を確認しながら必要に応じ
て注湯速度を補正する必要があつた。 Conventionally, when pouring molten metal into a mold, the ladle filled with molten metal was manually tilted using a handle, and the molten metal level at the molten metal inlet of the mold cavity was monitored while maintaining the molten metal level at an optimum level. However, this work required skill, and the working environment was poor due to high heat and dust, making it hard work for the workers.
There were also health and safety issues. In order to relieve this harsh work, automatic pouring devices such as pot type and fan type have been developed, but in all of these, the pouring speed is set to a constant value and the speed cannot be controlled. Therefore, if slag adheres to the peripheral wall of the pouring port of the ladle, or if the surface of the molten metal in the ladle waves or is disturbed for some reason, the flow rate of the molten metal will not match the set value. This may result in an inappropriate pouring rate, resulting in too little or too much molten metal being poured into the mold. Therefore,
It was necessary for the operator to constantly check the pouring state and correct the pouring speed as necessary.
本発明はこれらの問題点に鑑みて成されたもの
であつて、人手による補正の必要なしに自動的に
常に安定した注湯が可能な扇形取鍋による自動注
湯の制御方法を提供することを目的とするもので
ある。 The present invention has been made in view of these problems, and it is an object of the present invention to provide a method for automatically pouring molten metal using a fan-shaped ladle, which is capable of automatically and constantly pouring molten metal without the need for manual correction. The purpose is to
以下に、本発明の構成を実施例に基づいて説明
する。第１図において、１は扇型形状の取鍋本体
２における回転軸線上の一側に注湯口３を、他側
に補給口（図示せず）をそれぞれ備えた取鍋で、
該取鍋１は、図示されない駆動装置の作動によ
り、矢印Ｒ方向に傾動され一定量の溶湯が注湯口
３から流出されるようになつている。４は型合わ
せされた１対の鋳型で、鋳枠５に保持されて図示
されない搬送コンベア上に並べられている。６
は、第２図に示すように、鋳型４上面に開口し縦
断面が略逆錐形状を成した溶湯流入口で、該溶湯
流入口６は湯通７、湯溜り８等を介して鋳型キヤ
ビテイ９に連通し鋳型４上端面からの深さが深く
なるにつれて、その横断面積が徐々に狭くなつて
いて、溶湯の流入速度が異なると、溶湯の上面位
置が異なるとともに溶湯上面の幅寸法が異なるよ
うになつている。 The configuration of the present invention will be explained below based on examples. In FIG. 1, reference numeral 1 denotes a ladle having a fan-shaped ladle main body 2, which has a pouring spout 3 on one side on the rotation axis and a replenishment spout (not shown) on the other side.
The ladle 1 is tilted in the direction of arrow R by the operation of a drive device (not shown), so that a certain amount of molten metal flows out from the pouring spout 3. Reference numeral 4 denotes a pair of matching molds, which are held in a flask 5 and arranged on a conveyor (not shown). 6
As shown in FIG. 2, the molten metal inlet 6 is opened at the upper surface of the mold 4 and has an approximately inverted cone shape in longitudinal section. 9, its cross-sectional area gradually becomes narrower as the depth from the upper end surface of the mold 4 increases, and when the inflow speed of the molten metal differs, the upper surface position of the molten metal differs, and the width dimension of the molten metal upper surface also differs. It's becoming like that.
１０は注湯口３から流出される溶湯の有無を検
知するために、その検知部を注湯口３に向けて設
けられた検知器で、該検知器１０は取鍋１の前記
駆動装置に電気的に連結してあつて、検知器１０
が溶湯の有無を検知すると、その検知指令によ
り、取鍋１は前記駆動装置を介して起動、停止さ
れるようになつている。１１は溶湯流入口６にお
ける溶湯上面のは幅寸法（ａ、ｂ寸法）を検知す
るために設けられた寸法、形状を計測可能な光学
式の検知器で、その検知器を溶湯流入口６に向け
て設けてあつて、該検知器１１は取鍋１の前記駆
動装置にマイコン制御装置を介して電気的に連結
してあるとともに注湯経過時間と前記溶湯流入口
６における前記幅寸法との関係が予め前記マイコ
ン制御装置に記憶させてあり、実測値が一定範囲
の設定値よりも大きい場合には、取鍋１を矢印Ｒ
方向と反対方向に逆傾動させ、また小さい場合に
は、取鍋１を矢印Ｒ方向に傾動させて注湯口３か
ら流出される溶湯量を前記一定範囲の設定値内に
制御できるようにしてある。 Reference numeral 10 denotes a detector provided with its detection portion facing the pouring spout 3 in order to detect the presence or absence of molten metal flowing out from the pouring spout 3. The detector 10 is electrically connected to the driving device of the ladle 1. The detector 10 is connected to
When the ladle 1 detects the presence or absence of molten metal, the ladle 1 is started and stopped via the drive device according to the detection command. Reference numeral 11 denotes an optical detector that can measure the dimensions and shape of the upper surface of the molten metal at the molten metal inlet 6. The detector 11 is electrically connected to the drive device of the ladle 1 via a microcomputer control device, and detects the difference between the elapsed pouring time and the width dimension at the molten metal inlet 6. The relationship is stored in the microcomputer control device in advance, and if the actual measured value is larger than the set value within a certain range, the ladle 1 is moved in the direction of arrow R.
The amount of molten metal flowing out from the pouring spout 3 can be controlled within the predetermined range by tilting the ladle 1 in the direction opposite to that of the pouring spout 3, and tilting the ladle 1 in the direction of arrow R if the ladle 1 is small. .
尚、１２は点検蓋、１３は溶湯である。 In addition, 12 is an inspection lid, and 13 is a molten metal.
次に、本発明の作用について第３図の注湯経過
時間と取鍋の傾動角度との関係を示す線図に基づ
き説明する。 Next, the operation of the present invention will be explained based on the diagram shown in FIG. 3 showing the relationship between the elapsed pouring time and the tilting angle of the ladle.
図示されない搬送コンベヤ上を鋳枠５に保持さ
れて送られてきた鋳型４が溶湯流入口６を取鍋１
の溶湯注湯口３の直下に位置させて停止すると、
取鍋１の駆動装置が作動して、取鍋１がスタート
位置から一定速度で矢印Ｒ方向に傾動し始めると
ともにしばらくして溶湯注湯口３から溶湯が流出
し始める。すると、検知器１０が、この溶湯の流
出を検知し、タイマー T1 が作動を開始する。
タイマー T1 が、設定時間経過すると、必要量
よりも多い量の溶湯を出湯できるだけの角度傾動
される。この状態でタイマー T1 が解除されて
取鍋１は傾動を停止されるとともにタイマー T2
にリレーされて、このタイマー T2 の設定時間
だけ取鍋１は停止し溶湯注湯口３と同芯上にある
溶湯が注湯口３を介して流出されるが、検知器１
１により、溶湯流入口６における溶湯上面の幅寸
法が検知、測定されるとともに、この実測値が予
め設定した一定範囲の幅寸法より大きい場合に
は、取鍋１をタイマー T3 の設定時間だけ逆傾
動させ、また予め設定した一定範囲の幅寸法より
小さい場合には、タイマー T3 の設定時間だけ
傾動させる。このような操作を、タイマー T2
の設定時間の間、繰り返し溶湯の流入速度を一定
範囲内に保つように補正する。タイマー T2 が
解除すると、取鍋１は一定速度で逆傾動して戻り
始める。そして、検知器１０により、溶湯注湯口
３からの溶湯の湯切れが検知、確認されると、そ
の検知指令により、取鍋１はタイマー T4 の設
定時間だけ、更に逆傾動し完全に湯切れされる。
この状態で次の注湯操作に備える。 A mold 4 held by a flask 5 and conveyed on a conveyor (not shown) is transferred to a molten metal inlet 6 and a ladle 1.
When it is positioned directly below the molten metal pouring port 3 and stopped,
The drive device for the ladle 1 is activated, and the ladle 1 begins to tilt in the direction of arrow R from the starting position at a constant speed, and after a while, molten metal begins to flow out from the molten metal pouring port 3. Then, the detector 10 detects the outflow of the molten metal, and the timer T1 starts operating.
After the set time has elapsed, the timer T1 is tilted at an angle sufficient to dispense a larger amount of molten metal than required. In this state, timer T 1 is released and ladle 1 stops tilting, and timer T 2 is also released.
The ladle 1 is stopped for the time set by the timer T2 , and the molten metal that is coaxial with the molten metal pouring port 3 flows out through the pouring port 3.
1, the width of the upper surface of the molten metal at the molten metal inlet 6 is detected and measured, and if this measured value is larger than the width within a preset range, the ladle 1 is moved for the time set by the timer T3 . It is tilted in the opposite direction, and if the width is smaller than a preset certain range, it is tilted for the time set by timer T3 . This kind of operation can be done using timer T 2
During the set time, the molten metal inflow speed is repeatedly corrected to keep it within a certain range. When the timer T 2 is released, the ladle 1 begins to tilt back at a constant speed. Then, when the detector 10 detects and confirms that the molten metal from the molten metal pouring port 3 has run out, the ladle 1 is further tilted backwards for the time set by the timer T 4 in response to the detection command, until the molten metal runs out completely. be done.
In this state, prepare for the next pouring operation.
尚、前記タイマー T3 は0.1〜0.2秒等の徴少時
間を調整可能にしてあり、またこのタイマー T3
により、傾動角が補正されると、その補正され
た分だけ、タイマー T1 の設定時間は補正され、
次の注湯操作には、補正された設定時間によつて
タイマー T1 は作動されるようになつている。 In addition, the timer T 3 is capable of adjusting the collection time such as 0.1 to 0.2 seconds, and this timer T 3
When the tilt angle is corrected, the setting time of timer T1 is corrected by the corrected amount,
For the next pouring operation, the timer T1 is activated according to the corrected set time.
また、前記実施例においては、溶湯流入口にお
ける溶湯上面の幅寸法を検知器で検知するように
したが、前記溶湯上面の面積を検知するようにし
てもよい。要するに、本発明は略逆錐形状の溶湯
流入口を備えた鋳型の該溶湯流入口に注湯された
溶湯上面の幅寸法又は面積を検知器で検知して、
前記幅寸法又は面積の実測値が予め設定された一
定範囲の設定値より大きい場合には、前記取鍋か
ら流出される溶湯の流出速度を遅らせ、また反対
に、前記一定範囲の設定値より小さい場合には、
前記流出速度を早くして前記幅寸法の実測値が前
記設定値の範囲内になるように前記溶湯の流出速
度を自動制御するようにしたので、注湯口にスラ
グが付着した場合とか、或いは取鍋に溶湯を補給
する際の溶湯撹乱時、さらには溶湯面が波を打つ
ている時でも、溶湯流入口に流入される溶湯の流
入速度を常に一定範囲内に保つことができるよう
になり、鋳型内へ流入される溶湯量が過不足なく
行われ、また、人手が不要となりその結果良好な
鋳造品が能率的に生産されるなどの効果を有し、
この種の業界に寄与する効果は著大である。 Further, in the above embodiment, the width dimension of the upper surface of the molten metal at the molten metal inlet is detected by the detector, but the area of the upper surface of the molten metal may be detected. In short, the present invention detects with a detector the width dimension or area of the upper surface of the molten metal poured into the molten metal inlet of a mold equipped with a molten metal inlet having a substantially inverted conical shape,
If the actual measured value of the width dimension or area is larger than a set value in a preset certain range, the outflow speed of the molten metal flowing out from the ladle is slowed down, and conversely, it is smaller than the set value in the certain range. in case of,
The outflow speed of the molten metal is automatically controlled so that the outflow speed is increased so that the actual measured value of the width dimension falls within the range of the set value, so it is possible to prevent slag from adhering to the spout or when removing the molten metal. Even when the molten metal is disturbed when replenishing the pot, or even when the surface of the molten metal is waving, the speed of the molten metal flowing into the molten metal inlet can be maintained within a certain range at all times. It has the effect of ensuring that the amount of molten metal that flows into the mold is just the right amount, and that no human labor is required, resulting in the efficient production of high-quality cast products.
The effect of contributing to this type of industry is significant.
第１図は本発明の実施例を示す全体図、第２図
は本発明における鋳型の拡大断面図、第３図は注
湯経過時間と取鍋の傾動角度との関係を示す速度
線図である。
１：取鍋、３：注湯口、４：鋳型、６：溶湯流
入口。
Fig. 1 is an overall view showing an embodiment of the present invention, Fig. 2 is an enlarged cross-sectional view of a mold according to the invention, and Fig. 3 is a velocity diagram showing the relationship between the elapsed pouring time and the tilting angle of the ladle. be. 1: Ladle, 3: Pouring port, 4: Mold, 6: Molten metal inlet.
Claims (1)
し、扇型取鍋を傾動させて前記溶湯流入口に溶湯
を注湯するに当り、該取鍋を、鋳造に必要な量よ
り多い量の溶湯を出湯できるだけの角度傾動させ
て停止し、その後一定時間は、前記溶湯流入口に
溶湯されている溶湯上面の幅寸法又は面積を検知
器で検知して前記幅寸法の実測値が予め設定され
た一定範囲の設定値より大きい場合には前記取鍋
を逆に傾動させ、また、反対に小さい場合には前
記取鍋をさらに傾動させて前記溶湯の流出速度を
制御し、該制御による溶湯流出時間経過後は該取
鍋を逆傾動させて溶湯の流出を停止するようにし
たことを特徴とする扇型取鍋による自動注湯の制
御方法。1. When pouring molten metal into the molten metal inlet by tilting a fan-shaped ladle into a mold equipped with a molten metal inlet having a substantially inverted conical shape, the ladle is used to pour molten metal into the mold in an amount larger than that required for casting. The molten metal is tilted at an angle sufficient to allow the molten metal to be dispensed and stopped, and then for a certain period of time, a detector detects the width or area of the upper surface of the molten metal in the molten metal inlet, and the actual value of the width is set in advance. The ladle is tilted in the opposite direction when the set value is greater than the set value within a certain range, and the ladle is further tilted when the set value is smaller than the set value, thereby controlling the flow rate of the molten metal. 1. A method for controlling automatic pouring using a fan-shaped ladle, characterized in that the ladle is tilted backwards to stop flowing out of molten metal after the outflow time has elapsed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12967083A JPS6021175A (en) | 1983-07-15 | 1983-07-15 | Method for controlling automatic pouring by sectorial ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12967083A JPS6021175A (en) | 1983-07-15 | 1983-07-15 | Method for controlling automatic pouring by sectorial ladle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6021175A JPS6021175A (en) | 1985-02-02 |
| JPH0148111B2 true JPH0148111B2 (en) | 1989-10-18 |
Family
ID=15015243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12967083A Granted JPS6021175A (en) | 1983-07-15 | 1983-07-15 | Method for controlling automatic pouring by sectorial ladle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6021175A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478737A (en) * | 2015-12-15 | 2016-04-13 | 湖南红宇耐磨新材料股份有限公司 | Automatic pouring method and system for heat preserving furnace pouring platform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5910965U (en) * | 1982-07-14 | 1984-01-24 | 旭可鍜鉄株式会社 | Ladle tilting speed adjustment device |
-
1983
- 1983-07-15 JP JP12967083A patent/JPS6021175A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6021175A (en) | 1985-02-02 |
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