JPH03258449A - Air pressurize molten metal supplying apparatus - Google Patents
Air pressurize molten metal supplying apparatusInfo
- Publication number
- JPH03258449A JPH03258449A JP5741690A JP5741690A JPH03258449A JP H03258449 A JPH03258449 A JP H03258449A JP 5741690 A JP5741690 A JP 5741690A JP 5741690 A JP5741690 A JP 5741690A JP H03258449 A JPH03258449 A JP H03258449A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- hot water
- pressurized
- chamber
- water supply
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 48
- 238000002347 injection Methods 0.000 claims abstract description 29
- 239000007924 injection Substances 0.000 claims abstract description 29
- 238000004512 die casting Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 68
- 238000005086 pumping Methods 0.000 claims description 41
- 239000000956 alloy Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 abstract 5
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material 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】
二産業上の利用分野］
この発明は、ダイカスト機など加圧ＩＡ造装置の射出ス
リーブに溶湯を空圧圧送して給湯する空圧加圧給湯装置
に関する。DETAILED DESCRIPTION OF THE INVENTION [Second Industrial Fields of Application] The present invention relates to a pneumatic pressurized hot water supply device that supplies hot water by pneumatically feeding molten metal to an injection sleeve of a pressurized IA manufacturing device such as a die casting machine.
こ従来の技術］
従来、この種の空圧加圧給湯装置として、第２図に示す
ようなものか知られており、これを図面に基づいて説明
する。BACKGROUND ART Conventionally, this type of pneumatic pressurized hot water supply apparatus as shown in FIG. 2 has been known, and this will be explained based on the drawings.
図は立形ダイカスト機の給湯装置の例て゛ある。The figure shows an example of a water heater for a vertical die-casting machine.
１１は固定タイプレート、１２は移動タイプレート、１
３は金型装置、１４はキャビティ、１５は射出スリーブ
、１６は射出プランジャ、１７は射出シリンダで、ダイ
カスト機の一部分を図示している。１８は給湯口で射出
スリーブ１５１Ｆ！ｌ壁に開口し、給湯管１９を接合し
ている。２０は溶湯である。11 is a fixed tie plate, 12 is a movable tie plate, 1
3 is a mold device, 14 is a cavity, 15 is an injection sleeve, 16 is an injection plunger, and 17 is an injection cylinder, which shows a part of the die-casting machine. 18 is the injection sleeve 151F at the hot water supply port! It opens in the l wall and connects the hot water supply pipe 19. 20 is a molten metal.
２１は定湯面保持炉で一部を省略している。21 is a constant molten metal level holding furnace, a part of which is omitted.
２２は汲出室で気密構造とし、その底部に連通口３２を
設けて加圧室３１に連通している。３０はバルブ装置で
連通口３２を開閉するように設けである。３３は空圧シ
リンダで前記バルブ装置３．０を開閉するためのアクチ
ュエータである。Reference numeral 22 denotes a pumping chamber, which has an airtight structure, and has a communication port 32 at its bottom to communicate with the pressurizing chamber 31. 30 is a valve device provided to open and close the communication port 32. 33 is an actuator for opening and closing the valve device 3.0 using a pneumatic cylinder.
３４は加圧空気装置で、気密構造の加圧室３１に加圧空
気を供給し加圧室３１内の溶湯を押圧し連通口３２を介
して汲出室２２に溶湯を導き、汲出室２２の溶湯面を湯
面センサ３５で検知し検出信号をフィードバックしてバ
ルブ装置３０を開閉し、汲出室２２の湯面を一定になる
よう制御している。34 is a pressurized air device that supplies pressurized air to the pressurizing chamber 31 having an airtight structure, presses the molten metal in the pressurizing chamber 31, guides the molten metal to the pumping chamber 22 through the communication port 32, and The molten metal level is detected by a molten metal level sensor 35 and a detection signal is fed back to open and close the valve device 30 to control the molten metal level in the pumping chamber 22 to be constant.
４０は加圧空気定量供給装置で、鋳造サイクル毎に加圧
空気を汲出室２２内に供給しバルブ装置３０を閉して汲
出室２２内の溶湯を押圧し、給湯管１９、給湯口１８を
経てダイカスト機の射出スリーブ１５に溶湯を供給する
ようになっている６二発明か解決しようとする創訓
ところで、このような従来の空圧加圧給湯装置において
は、加圧空気定量供給装置４０によって供給される加圧
空気の温度は室温で、一方、汲出室２２内部の空気温度
は高温であり、例えはアルミニウム溶湯では溶湯温度か
７５０℃程度であるなめに、室温の加圧空気か汲出室２
２に供給されると汲出室２２内の高温の空気に接触して
急激に高温に加熱されて、約３，３倍に彫版することに
なり、汲出室２２内の圧力が急激に上昇し、圧力が大き
く変動するので給湯管１９からの給湯量が変動して定量
給湯の精度か低下するという問題かある。40 is a pressurized air constant supply device which supplies pressurized air into the pumping chamber 22 for each casting cycle, closes the valve device 30, presses the molten metal in the pumping chamber 22, and connects the hot water supply pipe 19 and the hot water supply port 18. By the way, in such a conventional pneumatic pressurized hot water supply device, the pressurized air constant supply device 40 The temperature of the pressurized air supplied by the pump is at room temperature, while the air temperature inside the pumping chamber 22 is high temperature. room 2
2, it comes in contact with the high-temperature air in the pumping chamber 22 and is rapidly heated to a high temperature, resulting in engraving approximately 3.3 times the size, and the pressure in the pumping chamber 22 increases rapidly. Since the pressure fluctuates greatly, the amount of hot water supplied from the hot water supply pipe 19 fluctuates, causing a problem in that the accuracy of fixed hot water supply decreases.
また、室温の加圧空気を汲出室内とほぼ同じ高温に予め
加熱してから供給することにより加圧空気の温度変化に
よる汲出室内の圧力変動を解消することが考えられてい
るか、加圧空気の供給配管系統を加熱保温するための複
雑な装備を必要とするという難点がある。Also, is it possible to eliminate pressure fluctuations in the pumping chamber due to temperature changes in the pressurized air by preheating room temperature pressurized air to almost the same high temperature as the pumping chamber before supplying it? The disadvantage is that it requires complicated equipment to heat and insulate the supply piping system.
本発明は、上記問題点に鑑みてなされたもので、加圧給
湯の際に加圧空気の温度変化による汲出室内圧力変動の
要因を本質的に排除して定量給湯精度が改善された空圧
加圧給湯装置を提供することを目的とする。The present invention has been made in view of the above-mentioned problems, and is a pneumatic system that improves the accuracy of quantitative hot water supply by essentially eliminating the cause of pressure fluctuations in the pumping chamber due to temperature changes in pressurized air during pressurized hot water supply. The purpose is to provide a pressurized water heater.
二課題を解決するための手段］
上記の目的を達成するために本発明は、溶湯を保持する
気密な加圧室と、アクチュエータで開閉するバルブ装置
を設けた連通口を介して前記加圧室に連通ずる気密な汲
出室と、前記加圧室内に加圧空気を導き前記溶湯を押圧
し前記連通口を介して前記汲出室に導くとともに、前記
汲出室の溶湯面を検出する湯面センサの信号で前記バル
ブ装置を開閉して前記汲出室の溶湯を定湯面に保持し、
同保持溶湯を加圧空気により押圧し、ダイカスト機の射
出スリーブ１ｌｌＩ壁の給湯口に接合した給湯管を介し
て給湯するように構成した空圧加圧給湯装置において、
前記汲出室に耐熱合金材のベローズを気密に取付け、前
記汲出室の上部空間の体積を可変させて空圧加圧し前記
ダイカスト機の射出スリーブに定量給湯するようにした
ことを特徴とする空圧加圧給湯装置とした。Means for Solving Two Problems] In order to achieve the above object, the present invention provides an airtight pressurized chamber that holds molten metal, and a communication port that connects the pressurized chamber to the pressurized chamber through a communication port provided with a valve device that is opened and closed by an actuator. an airtight pumping chamber that communicates with the pumping chamber; and a hot water level sensor that introduces pressurized air into the pressurizing chamber to press the molten metal and guide it to the pumping chamber through the communication port, and detects the surface of the molten metal in the pumping chamber. opening and closing the valve device in response to a signal to maintain the molten metal in the pumping chamber at a constant level;
In an air pressurized hot water supply device configured to press the held molten metal with pressurized air and supply hot water through a hot water supply pipe connected to a hot water supply port on the wall of an injection sleeve 1llI of a die-casting machine,
A pneumatic system characterized in that a bellows made of a heat-resistant alloy material is airtightly attached to the pumping chamber, and the volume of the upper space of the pumping chamber is varied to apply air pressure and supply a fixed amount of hot water to the injection sleeve of the die casting machine. It was a pressurized water heater.
二作 用コ
汲出室に気密に設けた耐熱合金材のベローズによって汲
出室の上部空間の体積が可変され、加圧給湯に際してベ
ローズを圧下して、汲出室内の上部空間の高温の空気を
、直接、体積を縮小し汲出室内の溶湯を圧送してダイカ
スト機の射出スリーブに定量給湯する。Two functions: The volume of the upper space of the pumping chamber is changed by a bellows made of a heat-resistant alloy material that is airtightly installed in the pumping chamber, and when hot water is supplied under pressure, the bellows is compressed and the high-temperature air in the upper space of the pumping chamber is directly pumped. , the volume is reduced and the molten metal in the pumping chamber is pumped to supply a fixed amount to the injection sleeve of the die-casting machine.
二実施例コ
以下、本発明に係る空圧加圧給湯装置の実施例につき、
添付図面に基づいて詳細に説明する。Second Embodiment Hereinafter, an embodiment of the pneumatic pressurized water heater according to the present invention will be described.
A detailed description will be given based on the accompanying drawings.
なお、説明の便宜上、第２図に示す従来の加圧空圧給湯
装置の場合と同一部材には同一符号を付して説明を簡略
する。For convenience of explanation, the same members as in the conventional pressurized pneumatic water heater shown in FIG. 2 are given the same reference numerals, and the explanation will be simplified.
第１図は立形ダイカストマシンの給湯装置の実施例であ
る。１１は固定タイプレート、１２は移動タイプレート
、１３は金型装置、１４はキャピティ、１５は射出スリ
ーブ、１６は射出プランジャ、１７は射出シリンダで、
ダイカストマシンの一部分を図示している。１８は給湯
口で射出スリーブ１５側壁に開口し、給湯管１９を接合
している。２０は溶湯である６２１は定湯面保持炉であ
つ一部を省略して図示している。FIG. 1 shows an embodiment of a water heater for a vertical die-casting machine. 11 is a fixed tie plate, 12 is a movable tie plate, 13 is a mold device, 14 is a cavity, 15 is an injection sleeve, 16 is an injection plunger, 17 is an injection cylinder,
1 illustrates a portion of a die casting machine. Reference numeral 18 denotes a hot water supply port, which opens in the side wall of the injection sleeve 15 and connects a hot water supply pipe 19 thereto. 20 is a molten metal, and 621 is a constant molten metal level holding furnace, some of which are omitted from the illustration.
２２は汲出室であり、２３はベローズで耐熱金属材から
なり、−測を定湯面保持炉２１の上壁に、他側を押板２
４に夫々に取着し気密構造として汲出室２２の上部空間
を形威し、押板２４に給湯シリング２５のピストンロッ
ド２６を取着して、ベローズ２３の伸縮によって上部空
間の体積を可変にするようになっている。22 is a pumping chamber, and 23 is a bellows made of a heat-resistant metal material.
4 to shape the upper space of the pumping chamber 22 as an airtight structure, and the piston rod 26 of the hot water supply sill 25 is attached to the push plate 24, so that the volume of the upper space can be varied by expanding and contracting the bellows 23. It is supposed to be done.
２７は炉の土壁に固定したフレームで前記給湯シリンダ
２５を固定している。フレーム２７は断然板で囲って、
ベローズ２３の外部を保温してもよい。The hot water supply cylinder 25 is fixed to a frame 27 fixed to the earthen wall of the furnace. The frame 27 is definitely surrounded by a board,
The outside of the bellows 23 may be kept warm.
２８は給湯シリンダの位置センサで、ボテンシミメータ
等であり、前記給湯シリンダのストロークを検出して定
量給湯の給湯完了信号を得るようになっている。Reference numeral 28 denotes a position sensor for the hot water supply cylinder, which is a potentiometer or the like, and is designed to detect the stroke of the hot water supply cylinder and obtain a water supply completion signal for quantitative hot water supply.
２９はソレノイドバルブで給湯開始信号で閉じ、給湯完
了信号で開くように制御している。Reference numeral 29 is a solenoid valve that is controlled to close when a hot water supply start signal is received and to open when a hot water supply completion signal is received.
３０はバルブ装置で汲出室２２の底面に設けてあり、加
圧室３１との連通口３２を開閉するようになっている。A valve device 30 is provided on the bottom of the pumping chamber 22 and opens and closes a communication port 32 with the pressurizing chamber 31.
３３は空圧シリングでバルブ装置３０のアクチュエータ
である。33 is a pneumatic syringe and is an actuator of the valve device 30.
３４は加圧室３１に供給する加圧空気装置で、加圧室３
１の溶湯を押圧して連通口３２を介して汲出室２２に溶
湯を供給し、汲出室２２の溶湯面を検出する湯面センサ
３５の信号をフィードバックして、汲出室２２の溶湯を
定湯面に制御し、汲出室２２が定湯面になるとバルブ装
置３０を閉じるようになっている。34 is a pressurized air device that supplies the pressurized chamber 31;
1 is pressed to supply the molten metal to the pumping chamber 22 through the communication port 32, and the signal from the molten metal level sensor 35 that detects the molten metal surface in the pumping chamber 22 is fed back to keep the molten metal in the pumping chamber 22 at a constant level. The valve device 30 is closed when the pumping chamber 22 reaches a constant level.
次に、本発明の空圧加圧給湯装置の動作について説明す
る。Next, the operation of the pneumatic water heater of the present invention will be explained.
汲出室２２の湯面を一定にしてバルブ装置３０を閉し、
給湯開始信号で給湯シリンダ２５か作動し、ベローズ２
３を圧下し汲出室２２の上部空間の体積を縮小し、汲出
室２２内の圧力を上昇して溶湯２０を圧送し、給湯管１
９を経て給湯口１８から射出スリーブ１５に溶湯を給湯
する。不図示のタイマを有する給湯制御盤からの給湯完
了信号、あるいは給湯シリンダ２５の位置センサ２８に
より給湯シリング２５のピストンロッド２６のストロー
クを検出する給湯完了信号で、給湯シリング２５の前進
を停止し、同時に射出プランジャ１６を前進して給湯口
１８を閉塞し完全に溶湯の供給を遮断する。Keeping the hot water level in the pumping chamber 22 constant and closing the valve device 30,
The hot water supply cylinder 25 operates with the hot water supply start signal, and the bellows 2
3 to reduce the volume of the upper space of the pumping chamber 22, and increase the pressure in the pumping chamber 22 to forcefully feed the molten metal 20,
Molten metal is supplied to the injection sleeve 15 from the hot water supply port 18 via the hot water supply port 9 . The forward movement of the hot water supply cylinder 25 is stopped in response to a hot water supply completion signal from a hot water supply control panel having a timer (not shown) or a hot water supply completion signal detected by the position sensor 28 of the hot water supply cylinder 25 to detect the stroke of the piston rod 26 of the hot water supply cylinder 25. At the same time, the injection plunger 16 is moved forward to close the hot water supply port 18 and completely cut off the supply of molten metal.
リミットスイッチ３６、およびドグ３７による射出プラ
ンジャのストローク検出手段により射出プランジャ１６
で給湯口１８を完全に閉塞したことを確認して信号を発
信し、この信号によって前記給湯シリンダ２５を後退し
、汲出室２２内の体積を４服させて同室内圧力を減圧し
、給湯口１８の近傍の溶湯を汲出室２２測に逆流させて
、空にする（湯切れをよくしている）ようにしている。The injection plunger 16 is detected by the limit switch 36 and the injection plunger stroke detection means by the dog 37.
After confirming that the hot water supply port 18 is completely closed, a signal is sent, and in response to this signal, the hot water cylinder 25 is moved back, the volume in the drawing chamber 22 is filled, the pressure in the same chamber is reduced, and the hot water supply port 18 is closed. The molten metal in the vicinity of No. 18 is made to flow back into the pumping chamber No. 22 to empty it (to ensure that the hot water drains well).
そしてソレノイドバルブ２９を開いて汲出室２２内の圧
力を大気に開放するようにしている。Then, the solenoid valve 29 is opened to release the pressure inside the pumping chamber 22 to the atmosphere.
このように汲出室２２の上部空間の高温の空気の体積を
圧縮するので、安定した空圧加圧給湯ができ、給湯量の
定量精度を保持することが容易に可能となる。Since the volume of the high-temperature air in the upper space of the pumping chamber 22 is compressed in this way, stable pneumatic pressurized hot water supply is possible, and it is easily possible to maintain the quantitative accuracy of the hot water supply amount.
そお、本発明は立形のダイカスト機等、縦射出の加圧鋳
造機に限定するものではなく、横形のダイカストマシン
等、横射出の加圧鋳造機にも適用できるものである。The present invention is not limited to vertical injection pressure casting machines such as vertical die casting machines, but can also be applied to horizontal injection pressure casting machines such as horizontal die casting machines.
二発明の効果］
上述したように、汲出室の上部空間の体積を可変にする
空圧加圧手段によって、汲出室内の圧力を制御して空圧
加圧給湯を行うので、外部から導入された室温の加圧空
気が急激に温度変化することによって生じる圧力変動の
要因を本質的に排除することができ、給湯量の定量給湯
精度を向上するという効果を奏する。[Effects of the Invention] As described above, the pressure inside the pumping chamber is controlled by the pneumatic pressurizing means that changes the volume of the upper space of the pumping chamber to supply hot water under pneumatic pressure. It is possible to essentially eliminate the cause of pressure fluctuations caused by sudden changes in temperature of pressurized air at room temperature, and this has the effect of improving the accuracy of quantitative hot water supply.
また、外部から加圧空気を導入することかないので、加
圧空気の供給配管系統を加熱保温するための装備を必要
としない。Furthermore, since pressurized air is not introduced from the outside, equipment for heating and insulating the pressurized air supply piping system is not required.
第１図は本発明の実施例を示す空圧加圧給湯装置の断面
図、第２図は従来の空圧加圧給湯装置の断面図である。
１１・・・固定タイプレート、
１２・・・移動タイプレート、１３・・・金型装置、１
５・・・射出スリーブ、１６・・・射出プランジャ、１
７・・・射出シリンダ、１８・・・給湯口、１９・・・
給湯管、２０・・・溶湯、
２１・・・定湯面保持炉、２２・・・汲出室、２３・・
・ベローズ、２４・・・押板、２５・・・給湯シリンダ
、２６・・・ピストンロッド、２７・・・フレーム、２
８・・・位置センサ、２９・・・ンレノイドバルブ、FIG. 1 is a sectional view of a pneumatic pressurized water heater showing an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional pneumatic pressurized water heater. 11... Fixed tie plate, 12... Movable tie plate, 13... Mold device, 1
5... Injection sleeve, 16... Injection plunger, 1
7... Injection cylinder, 18... Hot water supply port, 19...
Hot water supply pipe, 20... Molten metal, 21... Constant molten metal level holding furnace, 22... Pumping chamber, 23...
・Bellows, 24... Push plate, 25... Hot water cylinder, 26... Piston rod, 27... Frame, 2
8...Position sensor, 29...Renoid valve,
Claims (1)
するバルブ装置を設けた連通口を介して前記加圧室に連
通する気密な汲出室と、前記加圧室内に加圧空気を導き
前記溶湯を押圧し前記連通口を介して前記汲出室に導く
とともに、前記汲出室の溶湯面を検出する湯面センサの
信号で前記バルブ装置を開閉して前記汲出室の溶湯を定
湯面に保持し、同保持溶湯を加圧空気により押圧し、ダ
イカスト機の射出スリーブ側壁の給湯口に接合した給湯
管を介して給湯するように構成した空圧加圧給湯装置に
おいて、前記汲出室に耐熱合金材のベローズを気密に取
付け、前記汲出室の上部空間の体積を可変させて空圧加
圧し前記ダイカスト機の射出スリーブに定量給湯するよ
うにしたことを特徴とする空圧加圧給湯装置。an airtight pressurized chamber that holds the molten metal; an airtight pumping chamber that communicates with the pressurized chamber through a communication port provided with a valve device that is opened and closed by an actuator; and pressurized air is introduced into the pressurized chamber and the molten metal is is pressed to guide the molten metal into the drawing chamber through the communication port, and the molten metal in the drawing chamber is maintained at a constant level by opening and closing the valve device in response to a signal from a molten metal level sensor that detects the molten metal level in the drawing chamber. , a pneumatic pressurized hot water supply device configured to press the held molten metal with pressurized air and supply hot water through a hot water supply pipe connected to a hot water supply port on a side wall of an injection sleeve of a die casting machine, in which a heat-resistant alloy material is placed in the pumping chamber. A pneumatic pressurized hot water supply device, characterized in that a bellows is airtightly attached, and the volume of the upper space of the pumping chamber is varied to apply pneumatic pressure and supply a fixed amount of hot water to the injection sleeve of the die casting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5741690A JPH03258449A (en) | 1990-03-08 | 1990-03-08 | Air pressurize molten metal supplying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5741690A JPH03258449A (en) | 1990-03-08 | 1990-03-08 | Air pressurize molten metal supplying apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03258449A true JPH03258449A (en) | 1991-11-18 |
Family
ID=13055046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5741690A Pending JPH03258449A (en) | 1990-03-08 | 1990-03-08 | Air pressurize molten metal supplying apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03258449A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5913358A (en) * | 1993-11-11 | 1999-06-22 | Hi-Tec Metals Ltd. | Casting apparatus and method |
| CN109296524A (en) * | 2018-11-22 | 2019-02-01 | 邹俊 | A kind of unpowered self-priming feeding engine for ceramic die casting machine |
-
1990
- 1990-03-08 JP JP5741690A patent/JPH03258449A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5913358A (en) * | 1993-11-11 | 1999-06-22 | Hi-Tec Metals Ltd. | Casting apparatus and method |
| CN109296524A (en) * | 2018-11-22 | 2019-02-01 | 邹俊 | A kind of unpowered self-priming feeding engine for ceramic die casting machine |
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