JPH05220561A - Injection method of die casting machine of longitudinal injection type - Google Patents
Injection method of die casting machine of longitudinal injection typeInfo
- Publication number
- JPH05220561A JPH05220561A JP2680592A JP2680592A JPH05220561A JP H05220561 A JPH05220561 A JP H05220561A JP 2680592 A JP2680592 A JP 2680592A JP 2680592 A JP2680592 A JP 2680592A JP H05220561 A JPH05220561 A JP H05220561A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- injection
- docking
- foreign matter
- 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.)
- Pending
Links
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、縦射出型ダイカスト機
における射出方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection method for a vertical injection type die casting machine.
【０００２】[0002]
【従来の技術背景及びその問題点】一般に、この種の縦
射出型ダイカスト機の射出機構は、図１に示した如く、
ドッキングシリンダー６と傾動シリンダー９に支持され
て固定，可動両金型３，４の型合せ分割部５の真下に位
置して起立傾動自在に設備された射出スリーブ１を、固
定金型３が取付けられた固定盤2aの背後側（型取付け面
の裏側）に傾動シリンダー９によって傾動させた後、該
可動盤2aの背後側に設備されている不図示の給湯装置に
より溶湯を自動注湯せしめ、然る後、再び傾動シリンダ
ー９によって固定，可動両金型３，４の型合せ分割部５
の真下に傾動戻する共にドッキングシリンダー６によっ
て上昇移動せしめてそのドッキング開口部1aを固定，可
動両金型３，４の下面分割部５に構成された鋳込み口10
に嵌挿抜差し自在に上昇ドッキングさせて、射出シリン
ダー１によるプランジャーチップ７の射出前進によって
溶湯を金型キャビティ13に射出する様に構成されてい
る。2. Description of the Related Art Generally, the injection mechanism of this type of vertical injection type die casting machine is as shown in FIG.
The fixed mold 3 mounts the injection sleeve 1 which is supported directly by the docking cylinder 6 and the tilting cylinder 9 and is positioned directly below the mold matching division 5 of the movable and movable molds 3 and 4 and which is vertically tiltable. After tilting the tilting cylinder 9 to the rear side of the fixed platen 2a (back side of the die mounting surface), the molten metal is automatically poured by a water heater (not shown) provided on the back side of the movable platen 2a. After that, the mold matching division part 5 of both the fixed and movable molds 3 and 4 is fixed again by the tilting cylinder 9.
The casting port 10 formed in the lower surface split portion 5 of the movable molds 3 and 4 is fixed by tilting and returning to a position right below the docking cylinder 6 and moving upward by the docking cylinder 6.
It is configured such that the molten metal is injected into the mold cavity 13 by upwardly docking so that it can be inserted into and removed from the mold, and the injection tip of the plunger tip 7 is advanced by the injection cylinder 1.
【０００３】ところで、射出スリーブに注湯される溶湯
は給湯装置によって汲み上げられる間、溶湯汲取り開口
部が常時開放状の保持炉内に保温貯溜された外気接触状
態即ち貯溜された溶湯特にその表面は常時空気と接触し
た状態であり、そして、給湯装置によって汲み上げられ
射出スリーブに注湯される時にも空気と接触した状態で
あるから、空気との接触により発生する酸化膜等が射出
スリーブ内に入り込んで溶湯中に混入した状態で金型キ
ャビティに射出されて溶湯と解け合わない状態で製品中
に巻き込まれた状態で残る。従って、射出終了，凝固終
了後金型から脱型取り出された製品内部には酸化膜等に
よる内部欠陥ができて強度の低下を招く等、機能的欠陥
を引き起こす問題になっていた。尚、溶湯中には酸化膜
の他に給湯装置によって溶湯が射出スリーブ内に注湯さ
れスリーブ壁との接触によって発生する凝固膜（凝固
片）も混入している。By the way, while the molten metal poured into the injection sleeve is pumped up by the hot water supply device, it is kept in contact with the outside air in which the molten metal pumping opening is kept warm in the holding furnace, that is, the stored molten metal, especially its surface. Is in contact with air at all times, and is also in contact with air when it is pumped up by the water heater and poured into the injection sleeve. When it enters and is mixed in the molten metal, it is injected into the mold cavity and remains in the state of being caught in the product without being melted. Therefore, there has been a problem of causing functional defects such as an internal defect due to an oxide film and the like being caused in the inside of the product demolded from the mold after the completion of injection and solidification, resulting in a decrease in strength. In addition to the oxide film, the molten metal also contains a solidified film (solidified piece) generated by pouring the molten metal into the injection sleeve by the hot water supply device and coming into contact with the sleeve wall.
【０００４】[0004]
【発明が解決しようとする課題】本発明はこの様な従来
事情に鑑みてなされたものであり、その解決しようとす
る技術的課題は、射出スリーブ内に注湯された溶湯が金
型キャビティに射出される直前で溶湯中に混入する酸化
膜等を取り除いて清浄な溶湯のみを金型キャビティに射
出充填し得る様に改良した縦射出型ダイカスト機におけ
る射出方法の提供を目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of such conventional circumstances, and a technical problem to be solved is that the molten metal poured into the injection sleeve is injected into the mold cavity. An object of the present invention is to provide an injection method in a vertical injection type die casting machine improved so that an oxide film and the like mixed in the molten metal immediately before injection can be removed and only a clean molten metal can be injected and filled into a mold cavity.
【０００５】[0005]
【課題を達成するための手段】上記目的を達成するため
に本発明が講じる技術的手段は、ダイカスト機の下に傾
動自在で垂直昇降自在に設備され、固定，可動両金型の
下面分割部に構成された鋳込み口に嵌挿抜差し自在に上
昇ドッキングして溶湯を金型キャビティに射出する射出
スリーブ内に溶湯を注湯した後、該スリーブのドッキン
グ開口部に、この開口部を塞ぐ程度の適宜の大きさで溶
湯のみを通過させる小さな孔を無数に点在させた異物除
去手段を配し、その状態のまま射出スリーブを鋳込み口
に上昇ドッキングさせて溶湯を金型キャビティに射出す
る様にしたことを特徴とする。The technical means taken by the present invention to achieve the above-mentioned object is a tiltable and vertically ascending / descending equipment provided under a die casting machine, and a lower surface dividing portion of both fixed and movable dies. After pouring the molten metal into an injection sleeve that is docked upwardly so that it can be inserted into and removed from the casting port and ejected the molten metal into the mold cavity, the docking opening of the sleeve is closed to the extent that the opening is closed. A foreign matter removing means with an appropriate size in which small holes for passing only the molten metal are scattered is arranged, and in that state, the injection sleeve is elevated to the casting port and docked to inject the molten metal into the mold cavity. It is characterized by having done.
【０００６】[0006]
【作用】而して、上記した本発明の技術的手段によれ
ば、給湯装置により溶湯が自動注湯された射出スリーブ
のドッキング開口部に異物除去手段を配し、そのままの
状態で射出スリーブを上昇移動せしめてそのドッキング
開口部を固定，可動両金型の下面分割部に構成された鋳
込み口に嵌挿抜差し自在に上昇ドッキングさせた後、プ
ランジャーチップの射出前進に伴って溶湯が射出スリー
ブのドッキング開口部から金型キャビティに射出される
と、溶湯中に混入している酸化膜はドッキング開口部に
配された異物除去手段によって受け止めれ、酸化物等が
取り除かれた清浄な溶湯のみが金型キャビティに射出充
填される。According to the above-mentioned technical means of the present invention, the foreign matter removing means is arranged in the docking opening of the injection sleeve in which the molten metal is automatically poured by the hot water supply device, and the injection sleeve is kept as it is. After moving upward, the docking opening is fixed, and the movable die is inserted into and removed from the casting port formed in the bottom split part of the mold. When injected into the mold cavity from the docking opening, the oxide film mixed in the molten metal is received by the foreign matter removing means arranged in the docking opening, and only clean molten metal from which oxides and the like have been removed. The mold cavity is injection filled.
【０００７】[0007]
【実施例】本発明の実施の一例を図面に基づいて以下説
明すると、射出スリーブ１はダイカスト機２の地側にお
ける固定，可動両金型３，４の型合せ分割部５真下に位
置してドッキングシリンダー６によって支持され且つ摺
接動自在に嵌入内装されたプランジャーチップ７の射出
シリンダー８下端部を支点にダイカスト機２の固定盤2a
背後側に傾動する様に傾動シリンダー９に支持されて起
立傾動自在を設備され、型合せ分割部５真下における起
立姿勢から固定盤2aの背後側に傾動シリンダー９によっ
て傾動された後、該可動盤2aの背後側に設備されている
不図示の給湯装置により溶湯が自動注湯せしめられる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The injection sleeve 1 is located directly under the die-matching division 5 of the fixed and movable dies 3, 4 on the ground side of the die casting machine 2. Fixed platen 2a of die casting machine 2 with the lower end of injection cylinder 8 of plunger tip 7 supported by docking cylinder 6 and fitted slidably inside
The tilting cylinder 9 supports the tilting cylinder 9 so that the tilting cylinder 9 tilts to the back side, and the tilting cylinder 9 tilts the tilting cylinder 9 to the back side of the fixed platen 2a from the standing position just below the mold matching division 5 and then the movable platen. The molten metal is automatically poured by a hot water supply device (not shown) provided behind 2a.
【０００８】そして、再び傾動シリンダー９によって固
定，可動両金型３，４の型合せ分割部５の真下に傾動戻
された起立姿勢になった後、固定，可動両金型３，４の
型締めによって下面分割部５に構成される鋳込み口10に
向かってプランジャーチップ７と共にドッキングシリン
ダー６によって上昇移動せしめられ、そのドッキング開
口部1aを鋳込み口10に嵌挿抜差し自在にドッキングせし
めて射出シリンダー９によるプランジャーチップ７の射
出前進によって溶湯12を金型キャビティ13に射出充填す
る周知の射出動作をなす。Then, the tilting cylinder 9 again causes the fixed and movable molds 3 and 4 to be tilted and returned to a position right below the mold-matching dividing portion 5, and then the fixed and movable molds 3 and 4 are moved. By the tightening, the docking cylinder 6 is moved upward together with the plunger tip 7 toward the casting port 10 formed in the lower surface divided portion 5, and the docking opening 1a is docked to the casting port 10 so that the docking opening 1a can be freely inserted and removed. The well-known injection operation of injecting and filling the mold cavity 13 with the molten metal 12 is performed by the injection advance of the plunger tip 7 by 9.
【０００９】そして、本発明においては給湯装置により
射出スリーブ１内に溶湯12が注湯された後、そのドッキ
ング開口部1aに異物除去手段14を配し、その状態のまま
射出スリーブ１を鋳込み口1aにドッキングさせて溶湯12
を金型キャビティ13に射出充填するものである。Further, in the present invention, after the molten metal 12 is poured into the injection sleeve 1 by the hot water supply device, the foreign matter removing means 14 is arranged in the docking opening 1a, and the injection sleeve 1 is cast in the state as it is. Dock in 1a and melt 12
Is injection-filled into the mold cavity 13.
【００１０】異物除去手段14は、溶湯12を給湯装置によ
り射出スリーブ１内に注湯するために該溶湯12を保温貯
溜する保持炉並びに射出スリーブ１内に注湯する際の空
気との接触により発生して溶湯12中に混入する酸化膜15
等を受け止め取り除くためのもので、射出スリーブ１ド
ッキング開口部1aを塞ぐ程度の適宜の大きさで溶湯12の
みを通過させる小さな孔を無数に点在させた例えば溶湯
12のみを通す無数の孔を穿設した溶湯12の注湯温度より
も高い所謂溶湯12熱により溶ける虞れのない耐熱性に優
れたフイルム状の多孔板或いは溶湯12のみを通す網目に
て形成された同じく高い耐熱性に優れた金網等を用いて
図２に示した如く、ドッキング開口部1aの開口端面に周
縁を載承せしめた状態でその内側が開口部1a内に落し込
んだ状態で嵌合し得る略皿形状に形成せしめて、給湯装
置により射出スリーブ１内に溶湯12が注湯された後、ド
ッキング開口部1aに嵌合載承せしめた状態で置く。The foreign matter removing means 14 is provided with a holding furnace for keeping the molten metal 12 in a heat retaining manner for pouring the molten metal 12 into the injection sleeve 1 by a hot water supply device and contact with air when pouring the molten metal 12 into the injection sleeve 1. Oxide film 15 generated and mixed in molten metal 12
For example, a large number of small holes that allow only the molten metal 12 to pass therethrough are formed in an appropriate size for closing the injection sleeve 1 docking opening 1a.
The so-called molten metal 12 which is higher than the pouring temperature of the molten metal 12 in which a myriad of holes are drilled through which only 12 can be penetrated. As shown in FIG. 2, using a wire mesh or the like having the same high heat resistance as shown in FIG. 2, the inner edge of the docking opening 1a is dropped into the opening 1a while the peripheral edge is placed on the opening end surface of the docking opening 1a. After the molten metal 12 is poured into the injection sleeve 1 by the hot water supply device after being formed into a substantially dish-like shape that can be fitted, it is placed in the docking opening 1a in a fitted and mounted state.
【００１１】而して、傾動シリンダー９により射出スリ
ーブ１が固定盤2aの背後側に傾動され（図１の二点鎖線
参照）該背後側において給湯装置により溶湯12が注湯さ
れた後、射出スリーブ１のドッキング開口部12に異物除
去手段14を嵌合載承せしめた状態で置く（図３参照）、
そのままの状態で再び傾動シリンダー９によって射出ス
リーブ１を固定，可動両金型３，４の型合せ分割部５の
真下に傾動戻する共にドッキングシリンダー６によって
上昇移動せしめてそのドッキング開口部1aを固定，可動
両金型３，４の下面分割部５に構成された鋳込み口10に
上昇ドッキングさせて（図４参照）、射出シリンダー１
によるプランジャーチップ７の射出前進によって溶湯12
を金型キャビティ13に射出する（図５参照）。Then, the injection cylinder 1 is tilted by the tilting cylinder 9 to the rear side of the fixed platen 2a (see the chain double-dashed line in FIG. 1). The foreign matter removing means 14 is placed in the docking opening 12 of the sleeve 1 while being fitted and supported (see FIG. 3).
In this state, the injection cylinder 1 is fixed again by the tilting cylinder 9, tilted back to the position right below the mold matching division 5 of the movable molds 3, 4, and moved upward by the docking cylinder 6 to fix the docking opening 1a. , The movable cylinders 3 and 4 are docked upwardly to the casting port 10 formed in the lower surface divided portion 5 (see FIG. 4), and the injection cylinder 1
Molten metal 12 due to injection of plunger tip 7
Is injected into the mold cavity 13 (see FIG. 5).
【００１２】従って、本発明の射出方法によれば、プラ
ンジャーチップ７の射出前進に伴って溶湯12が射出スリ
ーブ１のドッキング開口部1aから金型キャビティ13に射
出されると、溶湯12中に混入している酸化膜15等はドッ
キング開口部1aに配した異物除去手段14によって図５に
示した如く受け止められ取り除かれる。よって、酸化物
15等の混入がない清浄な溶湯12のみを異物除去手段14を
通過させて金型キャビティ13に射出充填することができ
る。ちなみに、異物除去手段14は製品のビスケット部内
に内在された状態で製品と共に金型から脱型されて取り
出されるものである。Therefore, according to the injection method of the present invention, when the molten metal 12 is injected from the docking opening 1a of the injection sleeve 1 into the mold cavity 13 as the plunger tip 7 is advanced, The mixed oxide film 15 and the like are received and removed by the foreign matter removing means 14 arranged in the docking opening 1a as shown in FIG. Therefore, oxide
It is possible to inject and fill the mold cavity 13 only with the clean molten metal 12 without mixing 15 etc. through the foreign matter removing means 14. Incidentally, the foreign matter removing means 14 is taken out of the mold together with the product by being removed from the mold in a state of being contained in the biscuit part of the product.
【００１３】尚、上述した実施例においては固定盤2aの
背後側に傾動され給湯装置により溶湯12が注湯された
後、該背後側において射出スリーブ１のドッキング開口
部1aに異物除去手段14を配する形態として詳述したが、
斯る形態に限定されるものではなく、溶湯12が注湯され
た射出スリーブ１が傾動シリンダー９によって固定，可
動両金型３，４の型合せ分割部５の真下に傾動戻された
後或いはドッキングシリンダー６によって上昇移動せし
められてドッキング開口部1aが鋳込み口10に上昇ドッキ
ングされるそれ以前であればどの状態位置でも良い。即
ち、射出スリーブ１内に溶湯12が注湯された後からドッ
キング開口部1aが鋳込み口10に上昇ドッキングされる間
であれば射出スリーブ１がどの状態位置でも良い。In the embodiment described above, after the molten metal 12 is tilted to the rear side of the fixed platen 2a and the molten metal 12 is poured by the water heater, the foreign matter removing means 14 is provided in the docking opening 1a of the injection sleeve 1 on the rear side. Although detailed as a form to arrange,
The present invention is not limited to such a configuration, and after the injection sleeve 1 in which the molten metal 12 is poured is fixed by the tilting cylinder 9 and tilted back immediately below the mold matching division part 5 of the movable molds 3 and 4, or Any state position may be used before the docking opening 1a is lifted and docked by the docking cylinder 6 and the docking opening 1a is lifted and docked in the casting port 10. That is, the injection sleeve 1 may be in any position as long as the docking opening 1a is lifted and docked in the casting port 10 after the molten metal 12 is poured into the injection sleeve 1.
【００１４】[0014]
【発明の効果】本発明縦射出型ダイカスト機における射
出方法は叙上の如く、溶湯が注湯された射出スリーブの
ドッキング開口部に異物除去手段を配して該開口部を、
固定，可動両金型の下面分割部に構成された鋳込み口に
嵌挿抜差し自在に上昇ドッキングして溶湯を金型キャビ
ティに射出する様にしたから、溶湯中に混入している酸
化膜等はドッキング開口部に配した異物除去手段によっ
て受け止められ取り除かれる。According to the injection method of the vertical injection type die casting machine of the present invention, foreign matter removing means is arranged at the docking opening of the injection sleeve into which the molten metal is poured, as described above.
Since the fixed and movable molds are inserted into and removed from the casting openings formed in the split parts of the molds so that they can be inserted / removed upward and the molten metal is injected into the mold cavity, the oxide film mixed in the molten metal can be removed. The foreign matter removing means arranged in the docking opening receives and removes the foreign matter.
【００１５】従って、本発明の射出方法によれば、酸化
物等の混入がない清浄な溶湯のみを異物除去手段を通過
させて金型キャビティに射出充填することができるた
め、従来の様に製品内部に酸化膜等による内部欠陥がで
きて強度の低下を招く等、機能的欠陥を引き起こす問題
はなくなり、内部欠陥のない高強度，高品質の製品を鋳
造することが出来る。Therefore, according to the injection method of the present invention, it is possible to inject and fill only the clean molten metal free from the inclusion of oxides and the like into the mold cavity by passing through the foreign matter removing means. There is no problem of causing functional defects such as internal defects due to an oxide film or the like, which causes a decrease in strength, and it is possible to cast a product of high strength and high quality without internal defects.
【図１】 本発明縦射出型ダイカスト機における射出方
法の実施の一例を示した縦断正面図である。FIG. 1 is a vertical sectional front view showing an example of implementation of an injection method in a vertical injection die casting machine of the present invention.
【図２】 異物除去手段の一例を示した斜視図である。FIG. 2 is a perspective view showing an example of a foreign matter removing unit.
【図３】 異物除去手段を射出スリーブのドッキング開
口部に配した状態を示した部分拡大断面図である。FIG. 3 is a partially enlarged cross-sectional view showing a state in which foreign matter removing means is arranged in a docking opening of an injection sleeve.
【図４】 射出スリーブのドッキング開口部を固定，可
動両金型の下面分割部に構成された鋳込み口に上昇ドッ
キングさせた状態を示した部分拡大断面図である。FIG. 4 is a partial enlarged cross-sectional view showing a state in which the docking opening of the injection sleeve is fixed and docked upward to a casting port formed in the lower surface divisions of both movable dies.
【図５】 溶湯を金型キャビティに射出充填している状
態を示した部分拡大断面図である。FIG. 5 is a partially enlarged cross-sectional view showing a state in which a molten metal is injected and filled in a mold cavity.
１…射出スリーブ 1a…ド
ッキング開口部 ２…ダイカスト機 ３…固
定金型 ４…可動金型 ５…分
割部 10…鋳込み口 12…溶
湯 13…金型キャビティ 14…異
物除去手段DESCRIPTION OF SYMBOLS 1 ... Injection sleeve 1a ... Docking opening 2 ... Die casting machine 3 ... Fixed mold 4 ... Movable mold 5 ... Dividing part 10 ... Casting port 12 ... Molten metal 13 ... Mold cavity 14 ... Foreign matter removing means
Claims (1)
自在に設備された射出スリーブを、固定，可動両金型の
下面分割部に構成された鋳込み口に嵌挿抜差し自在に上
昇ドッキングさせて溶湯を金型キャビティに射出する縦
射出型ダイカスト機における射出方法に於いて、射出ス
リーブ内に溶湯を注湯した後、該スリーブのドッキング
開口部に、この開口部を塞ぐ程度の適宜の大きさで溶湯
のみを通過させる小さな孔を無数に点在させた異物除去
手段を配し、その状態のまま射出スリーブを鋳込み口に
上昇ドッキングさせて溶湯を金型キャビティに射出する
様にしたことを特徴とする縦射出型ダイカスト機におけ
る射出方法。1. An injection sleeve, which is tiltably movable and vertically movable under a die casting machine, is inserted into and removed from a casting opening formed in a lower surface divided portion of both fixed and movable dies, and is docked upward. In an injection method in a vertical injection type die casting machine for injecting molten metal into a mold cavity, after pouring the molten metal into an injection sleeve, the docking opening of the sleeve has an appropriate size for closing the opening. The feature is that foreign matter removing means with innumerable small holes through which only the molten metal passes is arranged, and in that state the injection sleeve is raised and docked to the casting port to inject the molten metal into the mold cavity. Injection method in vertical injection type die casting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2680592A JPH05220561A (en) | 1992-02-13 | 1992-02-13 | Injection method of die casting machine of longitudinal injection type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2680592A JPH05220561A (en) | 1992-02-13 | 1992-02-13 | Injection method of die casting machine of longitudinal injection type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05220561A true JPH05220561A (en) | 1993-08-31 |
Family
ID=12203516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2680592A Pending JPH05220561A (en) | 1992-02-13 | 1992-02-13 | Injection method of die casting machine of longitudinal injection type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05220561A (en) |
-
1992
- 1992-02-13 JP JP2680592A patent/JPH05220561A/en active Pending
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