JPS63242457A - Casting apparatus - Google Patents
Casting apparatusInfo
- Publication number
- JPS63242457A JPS63242457A JP7794787A JP7794787A JPS63242457A JP S63242457 A JPS63242457 A JP S63242457A JP 7794787 A JP7794787 A JP 7794787A JP 7794787 A JP7794787 A JP 7794787A JP S63242457 A JPS63242457 A JP S63242457A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- hot water
- water supply
- plunger
- supply sleeve
- 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
Links
- 238000005266 casting Methods 0.000 title claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 38
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 230000007423 decrease Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 59
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000001174 ascending effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
Ａ０発明の目的
（１）産業上の利用分野
本発明は鋳造装置、特に、軸線を上下方向に向けた給湯
スリーブの上部を、鋳型のキャビティに連通し、上端面
に加圧チップを突設したプランジャを前記給湯スリーブ
に摺合し、前記給湯スリーブに、それの上部から溶湯を
供給するようにしたもの一改良に関する。Detailed Description of the Invention A0 Object of the Invention (1) Industrial Field of Application The present invention relates to a casting device, in particular, to a casting device, in particular, to a casting device, in which the upper part of a hot water supply sleeve whose axis is directed in the vertical direction is communicated with a cavity of a mold, and This invention relates to an improvement in which a plunger having a protruding pressurizing tip is slid onto the hot water supply sleeve, and molten metal is supplied to the hot water supply sleeve from above.
（２） 従来の技術
従来、この種装置においては、鵠温による給湯スリーブ
の損傷を防止するため、給湯スリーブに冷却機構を設け
、また加圧チップ外周面および給湯スリーブ内周面間の
間隔を比較的狭く設定している。(2) Conventional technology Conventionally, in this type of equipment, in order to prevent damage to the hot water supply sleeve due to heat, a cooling mechanism was provided on the hot water supply sleeve, and the distance between the outer circumferential surface of the pressurizing tip and the inner circumferential surface of the hot water supply sleeve was reduced. It is set relatively narrow.
（３）発明が解決しようとする問題点
給湯スリーブに供給された溶湯は、その給湯スリープお
よびプランジャにより冷却されるため、給湯スリーブ内
には、その内周面ならびにプランジャ頂面および外周面
を覆う凝固膜が形成され、それら凝固膜は上端を開放し
た円筒体を構成する。(3) Problems to be solved by the invention The molten metal supplied to the hot water supply sleeve is cooled by the hot water supply sleeve and the plunger. Coagulated films are formed, and these coagulated films constitute a cylindrical body with an open top.
この場合、前記冷却機構は、その冷却機能が給湯スリー
ブの上部および下部間で均一になるように構成されてお
り、また給湯スリーブの下部側に存する溶湯は、上部側
に存する溶湯よりも早期に供給されて降温が進むため、
前記凝固膜よりなる円筒体の周壁肉厚は上部から下部に
向けて漸増する。また前記円筒体の底壁外周部肉厚は、
加圧チップ外周面および給湯スリーブ内周面間の間隔が
狭いことに起因してその間隔を埋めるように厚く形成さ
れる。In this case, the cooling mechanism is configured so that its cooling function is uniform between the upper and lower parts of the hot water supply sleeve, and the molten metal existing on the lower side of the hot water supply sleeve is released earlier than the molten metal existing on the upper side. As the temperature decreases due to
The peripheral wall thickness of the cylindrical body made of the solidified film gradually increases from the top to the bottom. Further, the outer circumferential thickness of the bottom wall of the cylindrical body is
Due to the narrow distance between the outer circumferential surface of the pressurizing tip and the inner circumferential surface of the hot water supply sleeve, it is formed thickly to fill the gap.
この円筒体は、プランジャを上昇させて、溶湯をキャビ
ティに充填する際、プランジャにより押上げられて給湯
スリーブ上方の鋳型の一部に衝合することにより、上部
側より逐次破壊されるが、キャビティへの溶湯充填終了
時には円筒体の下部側が鋳型とプランジャとの間に位置
することになるため、その下部側の肉厚が厚いことに起
因して、それを破壊するためにプランジャの上昇速度が
緩慢となる。その結果、キャビティへの溶湯の充填後、
その溶湯の圧力を短時間のうちに上昇させることができ
ず、鋳造能率の低下を来たし、また鋳物の品質にも悪影
響を与えるといった問題を生じる。When the plunger is raised to fill the cavity with molten metal, this cylindrical body is pushed up by the plunger and collides with a part of the mold above the hot water supply sleeve, so that it is successively destroyed from the upper side. When the molten metal filling is finished, the lower side of the cylinder will be located between the mold and the plunger, so due to the thick wall of the lower side, the rising speed of the plunger will be required to destroy it. Becomes slow. As a result, after filling the cavity with molten metal,
Problems arise in that the pressure of the molten metal cannot be increased in a short period of time, resulting in a decrease in casting efficiency and an adverse effect on the quality of the casting.
本発明は上記問題を解決し得る前記鋳造装置を提供する
ことを目的とする。An object of the present invention is to provide the casting apparatus that can solve the above problems.
Ｂ０発明の構成
（１１問題点を解決するための手段
本発明は、前記給湯スリーブに、それの上部から下部に
向って冷却機能が漸減する冷却機構を設け、前記加圧チ
ップ外周面および前記給湯スリーブ内周面間の間隔を、
前記給湯スリーブへの溶湯の供給により前記加圧チップ
外周面および前記給湯スリーブ内周面に形成される凝固
膜の厚さの和よりも広く設定したことを特徴とする。B0 Structure of the Invention (Means for Solving 11 Problems) The present invention provides the hot water supply sleeve with a cooling mechanism whose cooling function gradually decreases from the top to the bottom of the sleeve, and The distance between the inner peripheral surfaces of the sleeves is
It is characterized in that the thickness is set to be wider than the sum of the thicknesses of the coagulated films formed on the outer peripheral surface of the pressure tip and the inner peripheral surface of the hot water supply sleeve by supplying molten metal to the hot water supply sleeve.
（２）作 用
前記のように構成すると、給湯スリーブの温度が、その
上部より下部に向って上昇傾向となっているので、給湯
スリーブ内周面に形成される凝固膜の厚さが全体に亘っ
て略均−で、且つ薄くなる。(2) Effect With the above configuration, the temperature of the hot water supply sleeve tends to increase from the top to the bottom, so that the thickness of the coagulated film formed on the inner circumferential surface of the hot water supply sleeve increases over the entire thickness. It is approximately uniform and thin over the entire area.
また、プランジャの加圧チップ頂面および外周面に形成
される凝固膜も、給湯スリーブ側からの冷却作用が少な
いので同様に薄くなり、しかもそれら凝固膜は前記外周
面およびプランジャ内周面間の間隔を埋めることがない
。Furthermore, the solidified film formed on the top surface and outer circumferential surface of the pressurizing tip of the plunger also becomes thinner as there is less cooling action from the hot water supply sleeve side, and these coagulated films form between the outer circumferential surface and the inner circumferential surface of the plunger. Never fill in the gaps.
その結果、前記凝固膜により構成される円筒体が薄肉で
脆弱になるので、キャビティへの溶湯の充填後、前記円
筒体の破壊を容易に行ってプランジャを迅速に上昇させ
、これにより前記溶湯の圧力を短時間のうちに上昇させ
ることができる。As a result, the cylindrical body formed by the solidified film becomes thin and brittle, so that after filling the cavity with the molten metal, the cylindrical body is easily destroyed and the plunger is quickly raised, thereby causing the molten metal to rise. Pressure can be increased in a short time.
（３）実施例
第１図は鋳造装置りを示し、その鋳型としての金型Ｍは
、昇降自在な上型１と、その下方に配設された固定の下
型２とよりなり、それら−ヒ、下型１．２の協働で、湯
溜り３と、鋳物成形用キャビティ４と、それらを連通ず
るランナ５とが画成される。下型２の一端部に、軸線を
上下方向に向けて上端を湯溜り３に連通させた給湯スリ
ーブ６が配設され、その給湯スリーブ６に、上端面に加
圧チップ７ａを突設したプランジャ７が摺合される。(3) Embodiment Figure 1 shows a casting apparatus, and the mold M as the mold is composed of an upper mold 1 that can be raised and lowered, and a fixed lower mold 2 disposed below the upper mold 1. H. The lower die 1.2 cooperates to define a tundish 3, a casting molding cavity 4, and a runner 5 that communicates them. A hot water supply sleeve 6 is disposed at one end of the lower mold 2 and has its axis directed in the vertical direction and its upper end communicates with the hot water reservoir 3.The hot water supply sleeve 6 has a plunger having a pressurizing tip 7a protruding from its upper end surface. 7 are rubbed together.
また、下型２に、ホッパ８を持つ給湯路９が湯溜り３に
連通ずるように設けられ、その給湯路９に、それを開閉
するシールプランジャ１０が摺合される。１１はシール
プランジャ１０の作動シリンダである。Further, a hot water supply path 9 having a hopper 8 is provided in the lower mold 2 so as to communicate with the hot water reservoir 3, and a seal plunger 10 for opening and closing the hot water supply path 9 is slidably engaged. 11 is an operating cylinder of the seal plunger 10.
給湯スリーブ６は、内筒６ａと、それに嵌着される外筒
６ｂとより構成され、その外筒６ｂに冷却機構Ｃが設け
られる。その冷却機構Ｃは、外筒６ｂ外周面と協働して
複数段の冷却水路１２．〜１２、を形成する複数の互い
に独立した環状溝１３を有する冷却スリーブ１４と、各
冷却水路１２１〜１２７に接続された給排水管１５と、
それら給排水管１５に接続された冷却水供給源１６とよ
り構成される。The hot water supply sleeve 6 is composed of an inner cylinder 6a and an outer cylinder 6b fitted into the inner cylinder 6a, and a cooling mechanism C is provided in the outer cylinder 6b. The cooling mechanism C has multiple stages of cooling channels 12. - 12, a cooling sleeve 14 having a plurality of mutually independent annular grooves 13, and a water supply and drainage pipe 15 connected to each of the cooling water channels 121 to 127,
It is composed of a cooling water supply source 16 connected to these water supply and drainage pipes 15.
相隣る冷却水路１２．．１２□・・・１２６．１２７の
間隔は、給湯スリーブ６の上部から下部に向って漸増す
るようになっており、したがって、各間隔についてｄ、
＜ｄ、＜ｄ３＜ｄ４＜ｄ、＜ｄ、の関係が成立する。そ
の結果、冷却機構Ｃの冷却機能は給湯スリーブ６の上部
から下部に向い漸減し、これにより給湯スリーブ６の温
度をその上部より下部に向って上昇傾向に保つようにな
っている。Adjacent cooling channels 12. ．． The intervals 12□...126.127 gradually increase from the top to the bottom of the hot water supply sleeve 6, so that for each interval d,
The following relationships hold: <d, <d3<d4<d, and <d. As a result, the cooling function of the cooling mechanism C gradually decreases from the top to the bottom of the hot water supply sleeve 6, thereby maintaining the temperature of the hot water supply sleeve 6 in an upward trend from the top to the bottom.
加圧チップ７ａ外周面および給湯スリーブ６内周面間の
間隔ｄは、給湯スリーブ６への溶湯の供給により加圧チ
ップ７ａ外周面および給湯スリーブ６内周面に形成され
る凝固膜の厚さよりも広く設定されている。The distance d between the outer circumferential surface of the pressurizing tip 7a and the inner circumferential surface of the hot water supply sleeve 6 is determined from the thickness of the solidified film formed on the outer circumferential surface of the pressurizing tip 7a and the inner circumferential surface of the hot water supply sleeve 6 when molten metal is supplied to the hot water supply sleeve 6. is also widely set.
第１図中、Ｓ＋、Ｓｔは給湯スリーブ６の上部および下
部の温度を測定する温度センサである。In FIG. 1, S+ and St are temperature sensors that measure the temperature of the upper and lower portions of the hot water supply sleeve 6.
鋳造時には、冷却機構Ｃにより給湯スリーブ６を冷却し
、またシールプランジャ１０を収縮させて給湯路９を開
放し、さらにプランジャ７を下降した状態で、ホッパ８
より給湯路９を通じて湯溜り３を介し給湯プランジャ６
に溶湯を供給し、次いでシールプランジャ１０をその先
端が湯溜り３に至るまで伸長させて給湯路９を閉鎖する
。During casting, the cooling mechanism C cools the hot water supply sleeve 6, the seal plunger 10 is contracted to open the hot water supply path 9, and the plunger 7 is lowered to open the hopper 8.
The hot water supply plunger 6 is then connected to the hot water supply plunger 6 via the hot water supply path 9 and the hot water reservoir 3.
Molten metal is supplied to the molten metal, and then the seal plunger 10 is extended until its tip reaches the molten metal pool 3 to close the hot water supply path 9.
第２図ｙ点よりｙ点までプランジャ７を上昇させ、溶湯
をランナ５を通じてキャビティ４に充填し、引続き第２
図ｙ点より２．点までプランジャ７を上昇させて溶湯を
加圧し、この加圧下で溶湯を完全凝固させる。The plunger 7 is raised from the y point in Fig. 2 to the y point, and the molten metal is filled into the cavity 4 through the runner 5, and then the second
2. From point y in the figure. The plunger 7 is raised to a point to pressurize the molten metal, and the molten metal is completely solidified under this pressure.
前記給湯スリーブ６への溶湯の供給により、給湯スリー
ブ６内周面ならびにプランジャ７の加圧チップ７ａ頂面
および外周面にそれぞれ凝固膜ｆ１〜ｒ、が形成される
。By supplying the molten metal to the hot water supply sleeve 6, coagulated films f1 to r are formed on the inner circumferential surface of the hot water supply sleeve 6 and the top and outer circumferential surfaces of the pressurizing tip 7a of the plunger 7, respectively.
この場合、冷却機構Ｃの冷却機能が給湯スリーブ６の上
部から下部に向って漸減し、その結果、給湯スリーブ６
の温度がその上部より下部に向って上昇傾向となってい
るので、給湯スリーブ６内周面に形成される凝固膜ｆ、
の厚さが全体に亘って略均−で、且つ薄くなる。またプ
ランジャ７の加圧チフプ７ａ頂面および外周面に形成さ
れる凝固膜ｆ２．ｆ、も、給湯スリーブ６からの冷却作
用が少ないので同様に薄くなり、しかもそれら凝固膜ｆ
、、ｆ、の厚さの和は前記外周面およびプランジャ７内
周面間の間隔ｄよりも薄く、したがってそれら凝固膜ｆ
、、ｆ、が間隔ｄを埋めることはない。In this case, the cooling function of the cooling mechanism C gradually decreases from the top to the bottom of the hot water supply sleeve 6, and as a result, the cooling function of the cooling mechanism C gradually decreases from the top to the bottom of the hot water supply sleeve 6.
Since the temperature of the hot water supply sleeve 6 tends to increase from the upper part to the lower part, the solidified film f formed on the inner circumferential surface of the hot water supply sleeve 6,
The thickness is approximately uniform and thin over the entire area. Further, a coagulated film f2. formed on the top surface and outer peripheral surface of the pressure tip 7a of the plunger 7. Since the cooling effect from the hot water supply sleeve 6 is small, f also becomes thinner, and the solidified film f
, , f is thinner than the distance d between the outer circumferential surface and the inner circumferential surface of the plunger 7, and therefore
,,f, never fills the interval d.
その結果、前記凝固膜ｆ１〜ｆ３により構成される円筒
体Ｆが薄肉で脆弱になるので、キャビティ４への溶湯の
充填後、前記円筒体Ｆの破壊を容易に行ってプランジャ
７を迅速に上昇させ、これにより溶湯の圧力を短時間の
うちに上昇させることができる。As a result, the cylindrical body F constituted by the solidified films f1 to f3 becomes thin and fragile, so that after filling the cavity 4 with the molten metal, the cylindrical body F is easily destroyed and the plunger 7 is quickly raised. As a result, the pressure of the molten metal can be increased in a short time.
これは第２図より、ｙ点から２１点までのプランジャ７
の変位に要する時間Ｔ、−Ｔ、が短いことより明らかで
あるが、前記従来装置では、前記同様のプランジャの変
位、即ち、第２図ｙ点からＺｔ点までの変位を得るため
にＴ３−ＴＩ （Ｔ３）Ｔ２）といった長時間を要する
。この時間Ｔ。From Figure 2, this is the plunger 7 from point y to point 21.
It is clear from the fact that the time T, -T required for the displacement is short, but in the conventional device, in order to obtain the same displacement of the plunger as described above, that is, the displacement from point y to point Zt in FIG. TI (T3)T2). This time T.
は溶湯が略完全擬固する時間に相当するので、加圧に伴
う鋳造品質の向上効果は僅少となる。Since this corresponds to the time for the molten metal to almost completely pseudo-solidify, the effect of improving casting quality due to pressurization is small.
なお、前記冷却水路は螺旋状でもよい。Note that the cooling water channel may have a spiral shape.
Ｃ６発明の効果
本発明によれば、給湯スリーブの冷却機構の構成ならび
にプランジャの加圧チップ外周面および給湯スリーブ内
周面間の間隔をそれぞれ前記のように特定することによ
り、キャビティへの溶湯の充填後、その溶湯の圧力を短
時間のうちに上昇させて鋳造能率を向上させ、また鋳物
の品質を良好にすることができる。C6 Effects of the Invention According to the present invention, by specifying the configuration of the cooling mechanism of the hot water supply sleeve and the interval between the outer peripheral surface of the pressurizing tip of the plunger and the inner peripheral surface of the hot water supply sleeve as described above, it is possible to prevent the flow of molten metal into the cavity. After filling, the pressure of the molten metal can be increased in a short time to improve casting efficiency and improve the quality of the casting.
第１図は本発明の一実施例の縦断正面図、第２図は時間
とプランジ中の変位との関係を示すグラフである。
Ｃ・・・冷却機構、ｄ・・・間隔、ｆ、−ｆ、・・・凝
固膜、Ｍ・・・鋳型としての金型、
４・・・キャビティ、６・・・給湯スリーブ、７・・・
プランジャ、７ａ・・・加圧チップ
第２図
時 間FIG. 1 is a longitudinal sectional front view of an embodiment of the present invention, and FIG. 2 is a graph showing the relationship between time and displacement during plunging. C... Cooling mechanism, d... Interval, f, -f,... Solidified film, M... Mold as mold, 4... Cavity, 6... Hot water supply sleeve, 7...・
Plunger, 7a...Pressure tip Figure 2 Time
Claims (1)
キャビティに連通し、上端面に加圧チップを突設したプ
ランジャを前記給湯スリーブに摺合し、前記給湯スリー
ブに、それの上部から溶湯を供給するようにした鋳造装
置において、前記給湯スリーブに、それの上部から下部
に向って冷却機能が漸減する冷却機構を設け、前記加圧
チップ外周面および前記給湯スリーブ内周面間の間隔を
、前記給湯スリーブへの溶湯の供給により前記加圧チッ
プ外周面および前記給湯スリーブ内周面に形成される凝
固膜の厚さの和よりも広く設定したことを特徴とする鋳
造装置。The upper part of the hot water supply sleeve with its axis directed in the vertical direction is communicated with the cavity of the mold, and a plunger with a pressure tip protruding from the upper end surface is slid onto the hot water supply sleeve, and molten metal is poured into the hot water sleeve from the top. In the casting apparatus, the hot water supply sleeve is provided with a cooling mechanism whose cooling function gradually decreases from the top to the bottom of the hot water supply sleeve, and the distance between the outer circumferential surface of the pressure tip and the inner circumferential surface of the hot water supply sleeve is A casting device characterized in that the thickness is set to be larger than the sum of the thickness of a coagulated film formed on the outer peripheral surface of the pressure tip and the inner peripheral surface of the hot water supply sleeve by supplying molten metal to the hot water supply sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7794787A JPH078425B2 (en) | 1987-03-31 | 1987-03-31 | Casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7794787A JPH078425B2 (en) | 1987-03-31 | 1987-03-31 | Casting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63242457A true JPS63242457A (en) | 1988-10-07 |
| JPH078425B2 JPH078425B2 (en) | 1995-02-01 |
Family
ID=13648226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7794787A Expired - Fee Related JPH078425B2 (en) | 1987-03-31 | 1987-03-31 | Casting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH078425B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0677960U (en) * | 1993-04-16 | 1994-11-01 | 宇部興産株式会社 | Cooling device for vertical casting sleeve |
-
1987
- 1987-03-31 JP JP7794787A patent/JPH078425B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0677960U (en) * | 1993-04-16 | 1994-11-01 | 宇部興産株式会社 | Cooling device for vertical casting sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH078425B2 (en) | 1995-02-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |