JPS63207463A - Air vent device for die - Google Patents
Air vent device for dieInfo
- Publication number
- JPS63207463A JPS63207463A JP4077187A JP4077187A JPS63207463A JP S63207463 A JPS63207463 A JP S63207463A JP 4077187 A JP4077187 A JP 4077187A JP 4077187 A JP4077187 A JP 4077187A JP S63207463 A JPS63207463 A JP S63207463A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- air
- air vent
- plunger
- mold
- 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 claims abstract description 33
- 238000005266 casting Methods 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims description 27
- 239000007924 injection Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000013022 venting Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- YMHOBZXQZVXHBM-UHFFFAOYSA-N 2,5-dimethoxy-4-bromophenethylamine Chemical compound COC1=CC(CCN)=C(OC)C=C1Br YMHOBZXQZVXHBM-UHFFFAOYSA-N 0.000 description 1
- 241000545067 Venus Species 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/14—Machines with evacuated die cavity
- B22D17/145—Venting means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の属する技術分野］
本発明は加圧鋳造機の金型に於いて給湯中のキャビティ
内の空気を排出する装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a device for discharging air from a cavity during hot water supply in a mold of a pressure casting machine.
［従来技術］ 従来に於ける加圧鋳造機の一例を第３図により述べる。[Prior art] An example of a conventional pressure casting machine will be described with reference to FIG.
図は金型中央部を示した要部断面図であって、下型（以
下、固定金型という）１１は固定グイプレート１２に固
着され、固定金型１１に対向して不図示の移動グイプレ
ートに固着された上型（以下、移動金型という）１３は
、図示のように固定金型１１と型締されたときキャビテ
ィ１４が形成されている。固定金型１１に取着された射
出スリーブ１５の給湯口１６は電磁ポンプ等の給湯装置
１７に給湯管１８を介して接続されている。１９は射出
スリーブ１５に給湯された溶湯２０を加圧するための射
出プランジャーであり、２３は移動金型１３に設けた分
流子であり、２４は鋳造後に鋳造製品を押し出す押出棒
で図は１木のみ示しであるが複数本が押出板２５に取り
付けである。The figure is a sectional view of the main part showing the central part of the mold, in which a lower mold (hereinafter referred to as a fixed mold) 11 is fixed to a fixed guide plate 12, and a movable guide (not shown) is placed opposite the fixed mold 11. An upper mold (hereinafter referred to as a movable mold) 13 fixed to the plate forms a cavity 14 when clamped with the fixed mold 11 as shown in the figure. A hot water supply port 16 of the injection sleeve 15 attached to the fixed mold 11 is connected to a hot water supply device 17 such as an electromagnetic pump via a hot water supply pipe 18. 19 is an injection plunger for pressurizing the molten metal 20 supplied to the injection sleeve 15, 23 is a flow divider provided in the movable mold 13, and 24 is an extrusion rod for extruding the cast product after casting; Although only trees are shown, multiple trees are attached to the extrusion plate 25.
この構成による鋳造は、先づ固定金型１１と移動金型１
３とを型締した後、射出スリーブ１５に給湯装置１７か
ら給湯する。このときキャビティ１４内の空気は逃げる
所がないため下からの溶湯に押されて内圧は高くなり給
湯装置１７の給湯圧と等しくなると射出スリーブ１５へ
の給湯は停止して定量給湯は不能になる。このため移動
金型１３を僅かに上昇させて固定金型１１との密着面に
隙間を作りそこから空気を排出させることにより、射出
スリーブ１５に定量の溶湯２ｏを給湯した後給湯装置１
７を停止させる。次いで移動金型１３を下降させて型締
を行ない、型締完了までの数秒間射出スリーブ１５に溶
湯２０を貯留したまま待機し、型締完了後射出プランジ
ャー１９を前進させて加圧鋳造を行っていた。Casting with this configuration starts with a fixed mold 11 and a movable mold 1.
After the molds are clamped, hot water is supplied to the injection sleeve 15 from the hot water supply device 17. At this time, since the air inside the cavity 14 has no place to escape, it is pushed by the molten metal from below and the internal pressure increases.When it becomes equal to the hot water supply pressure of the hot water supply device 17, the hot water supply to the injection sleeve 15 is stopped and fixed quantity hot water supply becomes impossible. . For this purpose, by slightly raising the movable mold 13 to create a gap between the contact surface with the fixed mold 11 and discharging air therefrom, a certain amount of molten metal 2o is supplied to the injection sleeve 15, and then the water heater 1
Stop 7. Next, the movable mold 13 is lowered to perform mold clamping, and the molten metal 20 is kept in the injection sleeve 15 for several seconds until the mold clamping is completed, and after the mold clamping is completed, the injection plunger 19 is advanced to perform pressure casting. I was going.
このように従来の加圧鋳造方式は、射出スリーブへの給
湯中に移動金型を僅かに上昇させてキャビティ内の空気
を逃がし、次いで移動金型１３を下降させて型締を行な
うが、型締完了までの数秒間射出スリーブ内に溶湯を貯
留したまま待機していた。この方式は給湯中に移動金型
が上下動することならびに待機時間のため溶湯温度が低
下するので、溶湯の温度低下分だけ高温の溶湯を給湯し
なければならず加熱費が高くなると共に溶湯の酸化が大
きかった。さらに待機時間等が必要となることは鋳造サ
イクル時間の増加となり生産性を低くしていた。In this way, in the conventional pressure casting method, the movable mold is slightly raised to release the air inside the cavity while hot water is being supplied to the injection sleeve, and then the movable mold 13 is lowered to perform mold clamping. The molten metal remained in the injection sleeve for several seconds until the tightening was completed. In this method, the temperature of the molten metal decreases due to the movement of the movable mold up and down during the supply of hot water and the waiting time, so molten metal must be supplied at a high temperature to account for the drop in the temperature of the molten metal, increasing heating costs and lowering the temperature of the molten metal. There was a lot of oxidation. Furthermore, the need for waiting time, etc. increases the casting cycle time and lowers productivity.
［発明の目的］
本発明はこのような欠点を除去したものでその目的は、
キャビティの空気抜き穴に進退可能な空気抜きプランジ
ャーを設は給湯中は空気抜きプランジャーを後退位置に
して空気抜き穴を開き、給湯完了後は空気抜きプランジ
ャーな前進させて空気抜き穴を閉じた後射出プランジャ
ーで溶湯を加圧することにより、従来の待機時間等を無
くして加熱費が少くかつ生産性の高い金型の空気抜き装
置を提供することにある。[Object of the invention] The present invention eliminates such drawbacks, and its object is to:
An air vent plunger that can move forward and backward is installed in the air vent hole of the cavity.During hot water supply, move the air vent plunger to the backward position to open the air vent hole, and after hot water supply is complete, move the air vent plunger forward to close the air vent hole, then press the injection plunger. An object of the present invention is to provide an air venting device for a mold that eliminates the conventional standby time, reduces heating costs, and has high productivity by pressurizing molten metal.
［発明の要点］
本発明に於ける金星の空気抜き装置は、電磁ポンプ等に
より射出スリーブに金属の溶湯を定量給湯した後射出ス
リーブの給湯口側に内設した射出プランジャーにより溶
湯を金型のキャビティに加圧充填する加圧鋳造機に於い
て、一側の金型を貫通すると共に給湯口より上位のキャ
ビティに開口して設けた空気抜き穴と、空気抜き穴に挿
入されかつ一側の金型に取り付けられた空気抜きプラン
ジャーと、一側の金型に設けられ、その一側を空気抜き
穴に連通し他側を大気に開口した空気排出穴とからなる
ことを特徴にしている。[Summary of the Invention] The air venting device of Venus in the present invention supplies a fixed amount of molten metal to the injection sleeve using an electromagnetic pump or the like, and then pumps the molten metal into the mold using an injection plunger installed inside the injection sleeve on the hot water supply port side. In a pressure casting machine that pressurizes and fills a cavity, there is an air vent hole that penetrates the mold on one side and opens into the cavity above the hot water supply port, and an air vent hole that is inserted into the air vent hole and that is inserted into the mold on one side. It is characterized by consisting of an air vent plunger attached to the mold, and an air vent hole that is provided in one side of the mold and communicates with the air vent hole on one side and opens to the atmosphere on the other side.
［発明の実施例］
以下本発明の一実施例を示した第１図および２図につい
て説明する。なお従来例である第３図と同等部材は同一
符号を付して詳しい説明を省略し異なる部分について説
明する。移動金型１３には給湯口１６より上位のキャビ
ティ１４面に開口した空気抜き穴３１が設けてあり、空
気抜き穴３１には移動金型１３の上面に設けられた空気
抜きプランジャー装置３２の空気抜きプランジャー３３
が挿入されており、空気抜きプランジャー３３はアクチ
ュエータ３４により進退される。[Embodiment of the Invention] Hereinafter, a description will be given of FIGS. 1 and 2 showing an embodiment of the present invention. Note that the same members as those in FIG. 3, which is a conventional example, are given the same reference numerals, detailed explanations are omitted, and only different parts will be explained. The movable mold 13 is provided with an air vent hole 31 that opens on the surface of the cavity 14 above the hot water supply port 16. 33
is inserted, and the air vent plunger 33 is moved forward and backward by an actuator 34.
第１図に示す空気抜きプランジャー３３の後退時その先
端面は、空気抜き穴３１に一側を連通し不図示の他側を
大気に開口した空気排出穴３５の面と一致している。空
気抜きプランジャー３３の先端面はその前進時に第２図
に示すようにキャビティ１４の面と同一になっている。When the air vent plunger 33 shown in FIG. 1 is retracted, its tip surface coincides with the surface of the air vent hole 35, which communicates with the air vent hole 31 on one side and opens the other side (not shown) to the atmosphere. The front end surface of the air vent plunger 33 is flush with the surface of the cavity 14 as shown in FIG. 2 when it is advanced.
次に前述した実施例の動作を説明する。空気抜きプラン
ジャー３３を後退限に位置させ移動金型１３を下降させ
て型締を行う。この状態を示したのが第１図であって、
（ただし溶湯２０は未だない）この状態で給湯装置１７
を駆動することにより射出スリーブ１５に溶湯２０を給
湯する。このときキャビティ１４内の空気は空気抜き穴
３１がら空気排出穴３５を通って大気に開放されている
ため支障なく定量の溶湯２０が給湯される。次いで定量
給湯完了の信号によりアクチュエータ３４が作動して空
気抜きプランジャー３３は前進して第２図に示すように
、その先端面はキャビティ１４の面に一致して空気抜き
穴３１を閉じる。同時に射出プランジャー１９は前進し
て溶湯２０を加圧してキャビティ１４を充填する。Next, the operation of the embodiment described above will be explained. The air purge plunger 33 is positioned at the backward limit and the movable mold 13 is lowered to perform mold clamping. Figure 1 shows this state,
(However, there is no molten metal 20 yet.) In this state, the water heater 17
The molten metal 20 is supplied to the injection sleeve 15 by driving the molten metal 20 . At this time, since the air in the cavity 14 is released to the atmosphere through the air vent hole 31 and the air discharge hole 35, a fixed amount of molten metal 20 can be supplied without any problem. Next, the actuator 34 is actuated by a signal indicating the completion of metered hot water supply, and the air vent plunger 33 moves forward to close the air vent hole 31 so that its tip surface coincides with the surface of the cavity 14, as shown in FIG. At the same time, the injection plunger 19 moves forward and pressurizes the molten metal 20 to fill the cavity 14.
また他の実施態様としては前記アクチュエータ３４を作
動させるタイミングを定量給湯が完了し射出プランジャ
ー１９が前進してドッグ２１でリミットスイッチ２２を
作動させたその信号で制御するものである。この実施態
様では射出プランジャー１９で溶湯２０をキャビティ１
４に充填する時点でのキャビティ１４内の空気およびガ
スを排出することができる。In another embodiment, the timing at which the actuator 34 is actuated is controlled by a signal generated when the fixed quantity water supply is completed, the injection plunger 19 moves forward, and the limit switch 22 is actuated by the dog 21. In this embodiment, the injection plunger 19 injects the molten metal 20 into the cavity 1.
The air and gas in the cavity 14 at the time of filling the cavity 4 can be evacuated.
前述した実施例は整形機として説明したがこれに限定す
るものではなく横形機にも適用可能であることはいうま
でもない。Although the above-mentioned embodiment has been explained as a shaping machine, it goes without saying that the present invention is not limited to this and can also be applied to a horizontal machine.
［発明の効果］
本発明に於ける金型の空気抜き装置は以上説明したよう
に、一側の金型に空気抜きプランジャー装置を設は給湯
時にキャビティ内の空気を大気に放出させるようにした
ため、射出スリーブに定量給湯後待機させることなく連
続した鋳造サイクルが可能となり、溶湯の温度低下が防
止されかつ鋳造サイクル時間が短縮して生産性を向上さ
せた。[Effects of the Invention] As explained above, the mold air bleed device of the present invention is equipped with an air bleed plunger device on one side of the mold to release the air in the cavity to the atmosphere during hot water supply. It is now possible to perform continuous casting cycles without having to wait after supplying a fixed amount of molten metal to the injection sleeve, preventing a drop in the temperature of the molten metal, shortening the casting cycle time, and improving productivity.
またキャビティ内の気体排出により溶湯の流動条件を改
善し鋳造製品の品質を向上させる等の利点を有する。Further, by discharging the gas inside the cavity, it has the advantage of improving the flow conditions of the molten metal and improving the quality of the cast product.
第１図および第２図は本発明の一実施例を示し第１図は
断面図、第２図は第１図の要部説明図、第３図は従来例
の断面図である。
ｌｌ・１３・・・金型、１４・・・キャビティ、１５・
・・射出スリーブ、１６・・・給湯口、１９・・・射出
プランジャー、２０・・・溶湯。1 and 2 show one embodiment of the present invention, FIG. 1 is a sectional view, FIG. 2 is an explanatory view of the main part of FIG. 1, and FIG. 3 is a sectional view of a conventional example. ll・13... Mold, 14... Cavity, 15...
... Injection sleeve, 16... Hot water supply port, 19... Injection plunger, 20... Molten metal.
Claims (1)
湯した後前記射出スリーブの給湯口側に内接した射出プ
ランジャーにより前記溶湯を金型のキャビティに加圧充
填する加圧鋳造機に於いて、一側の前記金型を貫通する
と共に前記給湯口より上位の前記キャビティに開口して
設けた空気抜き穴と、同空気抜き穴に挿入されかつ一側
の前記金型に取り付けられた空気抜きプランジャーと、
前記一側の金型に設けられその一側を前記空気抜き穴に
連通し他側を大気に開口した空気排出穴とからなり、前
記空気抜きプランジャーを後退させることにより前記空
気抜き穴を開いた状態で前記射出スリーブに前記溶湯を
定量給湯し、次いで前記空気抜きプランジャーを前進さ
せることにより前記空気抜き穴を閉じた状態で前記射出
スリーブ中の前記溶湯を前記射出プランジャーにより加
圧するようにした金型の空気抜き装置。In a pressure casting machine, a fixed amount of molten metal is supplied to an injection sleeve using an electromagnetic pump or the like, and then the molten metal is pressurized and filled into a mold cavity by an injection plunger inscribed in the molten metal supply port side of the injection sleeve. an air vent hole penetrating the mold on one side and opening into the cavity above the hot water supply port; an air vent plunger inserted into the air vent hole and attached to the mold on one side;
an air exhaust hole provided in the mold on one side and communicating with the air vent hole on one side and open to the atmosphere on the other side, and the air vent hole is opened by retracting the air vent plunger. The mold is configured to supply a fixed amount of the molten metal to the injection sleeve, and then move the air vent plunger forward to close the air vent hole and pressurize the molten metal in the injection sleeve with the injection plunger. Air venting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4077187A JPS63207463A (en) | 1987-02-24 | 1987-02-24 | Air vent device for die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4077187A JPS63207463A (en) | 1987-02-24 | 1987-02-24 | Air vent device for die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63207463A true JPS63207463A (en) | 1988-08-26 |
Family
ID=12589892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4077187A Pending JPS63207463A (en) | 1987-02-24 | 1987-02-24 | Air vent device for die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63207463A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07155924A (en) * | 1993-12-09 | 1995-06-20 | Kobe Steel Ltd | Method for supplying molten metal in die casting machine |
| JPH07232258A (en) * | 1994-02-23 | 1995-09-05 | Ryobi Ltd | Casting method using electromagnetic pump |
| CN102896298A (en) * | 2012-11-13 | 2013-01-30 | 上海嘉朗实业有限公司 | Air exhausting method of high-pressure casting die and die |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56102365A (en) * | 1980-01-21 | 1981-08-15 | Honda Motor Co Ltd | Method of filling molten metal in vertical type die casting machine |
| JPS6076265A (en) * | 1983-10-01 | 1985-04-30 | Toshiba Mach Co Ltd | Discharging and feeding device for die |
| JPS60148655A (en) * | 1984-01-11 | 1985-08-05 | Toshiba Mach Co Ltd | Cold chamber die casting machine |
-
1987
- 1987-02-24 JP JP4077187A patent/JPS63207463A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56102365A (en) * | 1980-01-21 | 1981-08-15 | Honda Motor Co Ltd | Method of filling molten metal in vertical type die casting machine |
| JPS6076265A (en) * | 1983-10-01 | 1985-04-30 | Toshiba Mach Co Ltd | Discharging and feeding device for die |
| JPS60148655A (en) * | 1984-01-11 | 1985-08-05 | Toshiba Mach Co Ltd | Cold chamber die casting machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07155924A (en) * | 1993-12-09 | 1995-06-20 | Kobe Steel Ltd | Method for supplying molten metal in die casting machine |
| JPH07232258A (en) * | 1994-02-23 | 1995-09-05 | Ryobi Ltd | Casting method using electromagnetic pump |
| CN102896298A (en) * | 2012-11-13 | 2013-01-30 | 上海嘉朗实业有限公司 | Air exhausting method of high-pressure casting die and die |
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