JPS62220264A - Vacuum die casting apparatus - Google Patents
Vacuum die casting apparatusInfo
- Publication number
- JPS62220264A JPS62220264A JP6314386A JP6314386A JPS62220264A JP S62220264 A JPS62220264 A JP S62220264A JP 6314386 A JP6314386 A JP 6314386A JP 6314386 A JP6314386 A JP 6314386A JP S62220264 A JPS62220264 A JP S62220264A
- Authority
- JP
- Japan
- Prior art keywords
- vacuum
- cavity
- air passage
- molten metal
- air
- 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
- 238000004512 die casting Methods 0.000 title claims abstract description 15
- 238000000465 moulding Methods 0.000 claims description 5
- 238000005304 joining Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 15
- 239000002184 metal Substances 0.000 abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000005266 casting Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- 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】
〔産業上の利用分野〕
本発明はダイカスト装置に関し、特にキャビティ内を真
空吸引する手段を備えた真空ダイカスト装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a die-casting device, and particularly to a vacuum die-casting device equipped with means for vacuuming the inside of a cavity.
（従来の技術〕 従来、アルミニウム等の溶湯をプランジャーにより。(Conventional technology) Conventionally, molten metal such as aluminum was poured using a plunger.
金型のキャビティ内に圧入、鋳造するダイカスト装置が
広く用いられている。このダイカスト装置は多量生産に
向き、薄物鋳物が容易に得られ、且つその製品の寸法精
度が高く、鋳肌が滑らかで光沢がある等の利点を有して
いる。ところが、ダイカストＷｆにおいても。Die-casting equipment that press-fits and casts into the cavity of a mold is widely used. This die-casting device is suitable for mass production, and has the advantages of easily producing thin castings, having high dimensional accuracy, and having a smooth and glossy casting surface. However, even in die casting Wf.
製品中に巣が生じることがある。この巣の発生を防止す
るため、溶湯の圧入に先だってキャビティを真空吸引す
る方法が知られている。従来の真空吸引の方法は。Nests may form in the product. In order to prevent the formation of cavities, a method is known in which the cavity is vacuum-suctioned prior to press-fitting the molten metal. What is the traditional method of vacuum suction?
キャビティの上端に接続して形成されているオーバーフ
ロ一部に真空吸引通路を接続し、この部分から真空吸引
を行っている。A vacuum suction passage is connected to a part of the overflow formed connected to the upper end of the cavity, and vacuum suction is performed from this part.
しかし、かかる構造ではキャビティ内の到達真空度に限
度があり、十分な真空度を得ることが困難で、 ！Ｊ物
中に巣が発生したり、薄肉鋳物を製造する場合に溶湯が
キャビティの隅部にまでまわらず不良品を生じる等の問
題があった。However, with this structure, there is a limit to the degree of vacuum that can be achieved within the cavity, making it difficult to obtain a sufficient degree of vacuum. There have been problems such as the formation of cavities in J-type products, and when manufacturing thin-walled castings, the molten metal does not reach the corners of the cavities, resulting in defective products.
本発明者はこれらの原因を検討した結果２次の事項を見
出した。即ち、キャビティを閉しるために金型を相互に
接合しても、金型の接合面間には微小な隙間が生じてお
り、この隙間からキャビティ内に外気が侵入するので、
キャビティ内の真空吸引をｍ’４Ｎしても真空度を十分
には上げることが出来なかった。As a result of examining these causes, the present inventor found the following matter. In other words, even if the molds are joined together to close the cavity, there is a small gap between the joint surfaces of the molds, and outside air can enter the cavity through this gap.
Even if the vacuum suction inside the cavity was m'4N, the degree of vacuum could not be sufficiently increased.
本発明はかかる従来の問題点に鑑みて為されたもので、
キャビティ内を高真空度に真空吸引することの可能な真
空ダイカスト装置を提供することを目的とする。The present invention has been made in view of such conventional problems.
It is an object of the present invention to provide a vacuum die-casting device capable of suctioning the inside of a cavity to a high degree of vacuum.
本発明は、上述の問題点を解消するため、互いに接合す
る面の少なくとも一方に製品を成形するキャビティを備
えた複数の金型を有するダイカスト装置において、前記
キャビティを取り囲んで、且つ金型の接合面間の隙間に
通じる空気通路を設け、該空気通路に真空供給源を接続
したことを特徴とするものである。In order to solve the above-mentioned problems, the present invention provides a die-casting machine having a plurality of molds each having a cavity for molding a product on at least one of the surfaces to be joined to each other. It is characterized in that an air passage communicating with the gap between the surfaces is provided, and a vacuum supply source is connected to the air passage.
本発明は上述のように、キャビティを取り囲んで。 The invention, as described above, surrounds the cavity.
金型間の隙間に通しる空気通路を設けているので、外部
から金型間の隙間を通ってキャビティ内に漏れる外気は
必ず前記空気通路を通ることとなり、この空気通路を真
空供給源により真空吸引することにより、外気のキャビ
ティ内への侵入が防止され、キャビティ内を高真空度に
保つことが可能となる。Since an air passage is provided that passes through the gap between the molds, outside air leaking from the outside into the cavity through the gap between the molds must pass through the air passage, and this air passage is vacuumed by a vacuum supply source. By suctioning, outside air is prevented from entering the cavity, making it possible to maintain a high degree of vacuum inside the cavity.
なお１本発明の実施に際して１キヤビテイ内の真空吸引
には、前記空気通路を適当な通路を介してキャビティに
接続させ、この空気通路を介して行ってもよく。Incidentally, in carrying out the present invention, the air passage may be connected to the cavity through a suitable passage, and vacuum suction within one cavity may be carried out through this air passage.
また、この空気通路とは別の経路によりキャビティを真
空吸引してもよい、
〔実施例〕
以下１図面に示す本発明の好適な実施例を説明する。Further, the cavity may be vacuum-suctioned through a route other than this air passage. [Embodiment] A preferred embodiment of the present invention shown in one drawing will be described below.
第１図において、１は固定グイプレート、２は可動グイ
プレート、３は固定金型、４は可動金型、５はガイドバ
ーである。固定金型３と可動金型４との接合面には製品
成形用のキャビティ６が形成されており、且つ可動金型
４にはキャビティ６に通じるランナー７が形成されてい
る。一方、固定金型３にはランナー７に通じるプランジ
ャー穴８が形成され、固定グイプレート１にはこのプラ
ンジャー穴８と同径の穴を備えたプランジャースリーブ
９が取付けられている。プランジャースリーブ９内には
プランジャー１０が摺動可能に設けられ、プランジャー
１０にはシリンダ機構１１が接続されている。プランジ
ャースリーブ９の後端近傍の上部側面には給湯口１３が
設けられ、この給湯口１３よりも前方に真空吸引口１４
が設けられる。真空吸引口１４は単に円形の穴でもよい
が１図示のようにプランジャースリーブ９の内面に開口
した長手方向に延びる細長い溝形状とすることが好まし
い。プランジャースリーブ９の後端外周には真空接続口
１５を備えた開閉スリーブ１６が設けられ、且つこの開
閉スリーブ１６を往復動させる開閉シリンダ１７に連結
されている。開閉シリンダ１７は開閉スリーブ１６を往
復動さ廿て給湯口１３を開閉し、且つ給湯口１３に真空
接続口１５を接続させる。なお、開閉スリーブ１６を往
復動させる代わりに回転させて、給湯口１３の開閉を行
ってもよい、また、給湯口１３の開閉は開閉スリーブに
限らず、他の任意の機構を使用することができ。In FIG. 1, 1 is a fixed gouly plate, 2 is a movable gouie plate, 3 is a fixed mold, 4 is a movable mold, and 5 is a guide bar. A cavity 6 for molding a product is formed at the joint surface between the fixed mold 3 and the movable mold 4, and a runner 7 communicating with the cavity 6 is formed in the movable mold 4. On the other hand, a plunger hole 8 communicating with the runner 7 is formed in the stationary mold 3, and a plunger sleeve 9 having a hole having the same diameter as the plunger hole 8 is attached to the stationary guide plate 1. A plunger 10 is slidably provided within the plunger sleeve 9, and a cylinder mechanism 11 is connected to the plunger 10. A hot water supply port 13 is provided on the upper side surface near the rear end of the plunger sleeve 9, and a vacuum suction port 14 is provided in front of the hot water supply port 13.
will be provided. Although the vacuum suction port 14 may be a simple circular hole, it is preferably in the shape of an elongated groove opening in the inner surface of the plunger sleeve 9 and extending in the longitudinal direction, as shown in FIG. An opening/closing sleeve 16 having a vacuum connection port 15 is provided on the outer periphery of the rear end of the plunger sleeve 9, and is connected to an opening/closing cylinder 17 that reciprocates the opening/closing sleeve 16. The opening/closing cylinder 17 opens and closes the hot water supply port 13 by reciprocating the opening/closing sleeve 16, and connects the vacuum connection port 15 to the hot water supply port 13. Note that the opening/closing sleeve 16 may be rotated instead of reciprocating to open and close the hot water supply port 13, and the opening/closing of the hot water supply port 13 is not limited to the opening/closing sleeve, but any other mechanism may be used. I can do it.
例えば給湯口１３の上面を平面状とし、平板で開閉する
ようにしてもよい。真空吸引口１４及び真空接続口１５
にはそれぞれ、配管２１，２２．エアフィルタ。For example, the upper surface of the hot water supply port 13 may be made flat and opened and closed by a flat plate. Vacuum suction port 14 and vacuum connection port 15
have pipes 21, 22., respectively. air filter.
弁２３．２４を介して、エアフィルタ２５．真空タンク
２６．真空ポンプ２７等からなる真空供給源に接続され
ている。Via valves 23.24, air filter 25. Vacuum tank 26. It is connected to a vacuum supply source such as a vacuum pump 27.
固定金型３の可動金型４との接合面には、第２図に示す
ように、キャビティ６の上方及び上端側方にオーバーフ
ロー３０．３１が形成され、更にキャビティ６゜オーバ
ーフロー３０，３１．プランジャー穴８を包囲する位置
に溝状の空気通路３２が形成されている。この空気通路
３２は通路３３を介して配管３４に接続され、配管３４
はエアフィルタ、弁３５を介して真空ポンプ２７に接続
されている。また、空気通路３２は通路３６を介してオ
ーバーフロー３０にも接続している。As shown in FIG. 2, overflows 30, 31 are formed above the cavity 6 and on the sides of the upper end of the fixed mold 3 and the movable mold 4, and the cavity 6° overflows 30, 31. A groove-shaped air passage 32 is formed at a position surrounding the plunger hole 8. This air passage 32 is connected to piping 34 via a passage 33, and the piping 34
is connected to the vacuum pump 27 via an air filter and a valve 35. Air passage 32 is also connected to overflow 30 via passage 36 .
なお、オーバーフロー３０．３１やｆ４３２は固定金型
３に設ける場合に限らず可動金型４に設けても或いは双
方に設けてもよい。Note that the overflows 30.31 and f432 are not limited to being provided in the fixed mold 3, but may be provided in the movable mold 4, or may be provided in both.
第１図において、可動金型４の中央には突出しビン３７
が設けられ、その突出しピン３７の摺動泣面の一部を取
り囲む空間３８とその空間３日に通じる通路３９も設け
られている。通路３９は配管４０により配管３４に接続
されている。In FIG. 1, a protruding bottle 37 is located in the center of the movable mold 4.
A space 38 surrounding a part of the sliding surface of the ejecting pin 37 and a passage 39 communicating with the space are also provided. The passage 39 is connected to the pipe 34 by a pipe 40.
次に、上記ダイカスト装置による動作を説明する。Next, the operation of the die casting apparatus will be explained.
第３図に示すように、プランジャー１０を後退位置とし
、開閉スリーブ１６を後退させて給湯口１３を開く。As shown in FIG. 3, the plunger 10 is set to the retracted position, the opening/closing sleeve 16 is retracted, and the hot water supply port 13 is opened.
次に給湯口１３からボット４２により溶湯４３をプラン
ジャースリーブ９内に注入する。溶湯注入後、第１図に
示すように開閉スリーブ１６を前進させて給湯口１３を
閉じ、且つこの給湯口１３に真空接続口１５を接続させ
る。この状態で、弁２３，２４．３５を開いて真空ポン
プ２７の真空を各配管２１，２２，３４゜４０に作用さ
せ、金型内を真空に排気する。この際。Next, the molten metal 43 is injected into the plunger sleeve 9 from the hot water supply port 13 by the bot 42. After pouring the molten metal, as shown in FIG. 1, the opening/closing sleeve 16 is moved forward to close the hot water supply port 13 and connect the vacuum connection port 15 to the hot water supply port 13. In this state, the valves 23, 24, and 35 are opened to apply vacuum from the vacuum pump 27 to each of the pipes 21, 22, 34, and 40, thereby evacuating the inside of the mold. On this occasion.
キャビティ６は比較的大きい通路であるランナー７でプ
ランジャースリーブ９に連通しているので、主としてラ
ンナー７、プランジャースリーブ９を介して配管２１．
２２により敏速に真空にされる。一方、他の配管３４．
４０はキャビティ６を取り囲む空気通路３２及び突出し
ビン３７を取り囲む空間３８を真空吸引し。Since the cavity 6 communicates with the plunger sleeve 9 through a runner 7, which is a relatively large passage, the piping 21.
22, the vacuum is quickly evacuated. On the other hand, other piping 34.
40 vacuums the air passage 32 surrounding the cavity 6 and the space 38 surrounding the protruding bottle 37.
キャビティ６内の空気を通路３６．金型間の隙間、突出
しビンと金型との隙間等を介して吸引するぽかりでなく
、金型外部からこれらの隙間を通って侵入する外気を吸
引除去し、外気がこれらの隙間からキャビティ内に侵入
するのを防止する。これにより、キャビティ６内が敏速
に高真空に到達する。The air inside the cavity 6 is passed through the passage 36. Rather than sucking in gaps between the molds or gaps between the protruding bottle and the mold, the outside air that enters through these gaps from outside the mold is removed by suction, and the outside air is drawn from these gaps into the cavity. prevent it from entering the room. As a result, the inside of the cavity 6 quickly reaches a high vacuum.
次に、各配管からの真空を金型に供給した状態で。Next, with vacuum supplied to the mold from each pipe.
第４図、第５図に示すようにプランジャー１０を前進さ
せ、プランジャースリーブ９内の溶湯４３をキャビティ
６内に圧入する。この途中、プランジャー１０の前進に
伴い、給湯口１３．真空吸引口１４がキャビティ６とは
次々と切り離されるので、それに応じて弁２４．２３を
次々と閉じる。しかし、弁３５は開放のままとし、金型
間の空気通路３２や空間３８への真空供給は継続してお
く。このため、プランジャー１０の前進に伴い溶湯がラ
ンナー７内に入り、プランジャースリーブを介するキャ
ビティ真空吸引が停止しても。As shown in FIGS. 4 and 5, the plunger 10 is advanced to force the molten metal 43 inside the plunger sleeve 9 into the cavity 6. During this process, as the plunger 10 moves forward, the hot water supply port 13. As the vacuum suction ports 14 are successively disconnected from the cavity 6, the valves 24, 23 are closed one after another accordingly. However, the valve 35 remains open, and the vacuum supply to the air passage 32 and space 38 between the molds continues. Therefore, even if the molten metal enters the runner 7 as the plunger 10 advances and the cavity vacuum suction via the plunger sleeve stops.
第２図に矢印で示すような空気吸引が継続しており２キ
ヤビテイ６内は高真空に保たれ、溶湯はキャビティ６内
に確実に圧入され、巣のない良好な製品が得られる。溶
湯圧入後は１通常のダイカスト装置と同様に冷却後、金
型を開き、１８１品を取り出す。Air suction as shown by the arrow in FIG. 2 continues, and the inside of the second cavity 6 is maintained at a high vacuum, the molten metal is reliably press-fitted into the cavity 6, and a good product without voids is obtained. After the molten metal is injected, the mold is cooled in the same manner as in a normal die-casting machine, the mold is opened, and the 181 products are taken out.
第６図は上記ダイカスト装置に使用する金型３の変形例
を示す第２図と同様な平面図である。この実施例ではキ
ャビティ６内に取付けられる中子（図示せず）を固定す
るための固定ビン５０．５１がシリンダ５２゜５３によ
り移動可能に設けられている。キャビティ６を取り囲ん
で設けられる空気通路３２は固定ピン５０゜５１を取り
囲む空間３２Ａ、３２Ａを備えており、これにより固定
ピンｓｏ、ｓｉと金型との間の隙間を通る外気侵入が防
止される。FIG. 6 is a plan view similar to FIG. 2, showing a modification of the mold 3 used in the die-casting apparatus. In this embodiment, fixing bins 50, 51 for fixing a core (not shown) installed in the cavity 6 are provided movably by cylinders 52 and 53. The air passage 32 provided surrounding the cavity 6 has spaces 32A and 32A surrounding the fixing pins 50 and 51, thereby preventing outside air from entering through the gaps between the fixing pins so and si and the mold. .
第７図は固定金型３と可動金型４との更に他の変形例を
示す断面図、第８図は第７図の■−■矢視断面図である
。この実施例では固定金型３と可動金型４の接合部分の
外周に内周面に溝を備えたカバー５５が設けられ、この
カバー５５の溝がキャビティ６を取り囲む空気通路５６
を形成している。なお９図中５７はオーバーフロー３０
．３１と空気通路５６とを接続する通路である。本実施
例でも空気通路５６を真空に吸引することにより、キャ
ビティ内への外気侵入が防止される。FIG. 7 is a cross-sectional view showing still another modification of the fixed mold 3 and the movable mold 4, and FIG. 8 is a cross-sectional view taken along the line ■-■ in FIG. 7. In this embodiment, a cover 55 having a groove on the inner peripheral surface is provided on the outer periphery of the joint between the fixed mold 3 and the movable mold 4, and the groove of the cover 55 forms an air passage 56 surrounding the cavity 6.
is formed. Note that 57 in Figure 9 is overflow 30.
．． 31 and the air passage 56. In this embodiment as well, the air passage 56 is evacuated to prevent outside air from entering the cavity.
第９図は第２図の固定金型の変形例を示すものであり、
この固定金型３には空気通路３２の外側に同様な追加の
空気通路６０が形成され、配管６１を介して真空供給源
に接続されている。また、第１０図は第６図の固定金型
の変形例を示すもので、空気通路３２の外側に同様な追
加の空気通路６２が形成され、配管６３を介して真空供
給源に接続されている。これらの固定金型３は、外部か
らの空気の侵入を防止する空気通路が二重に形成されて
いるので、キャビティ６内を一層高真空とすることがで
きる。なお、空気通路３２に接続された配管３４及び空
気通路６０又は６２に接続された配管６１又は６３は、
共通の真空供給源（真空ポンプ）に連結してもよいが、
それぞれ別の真空ポンプに連結した方が効率がよい。FIG. 9 shows a modification of the fixed mold shown in FIG.
A similar additional air passage 60 is formed outside the air passage 32 in the fixed mold 3 and is connected to a vacuum supply source via a pipe 61. Furthermore, FIG. 10 shows a modification of the fixed mold shown in FIG. 6, in which a similar additional air passage 62 is formed outside the air passage 32 and is connected to a vacuum supply source via piping 63. There is. Since these fixed molds 3 have double air passages that prevent air from entering from outside, the inside of the cavity 6 can be kept in a higher vacuum. Note that the piping 34 connected to the air passage 32 and the piping 61 or 63 connected to the air passage 60 or 62 are
May be connected to a common vacuum source (vacuum pump), but
It is more efficient to connect each to a separate vacuum pump.
第１１図は可動金型４の背面にカバー６５を取付けて突
出しビンを取り囲む空気通路を形成し、この通路を配管
６６を介して真空供給源に連結した実施例である。この
実施例では突出しビンの部分からの空気侵入を良好に防
止することが可能である。この実施例のようにカバー６
５を取付けた場合には、可動金型４に形成した空間３日
及びこの空間に連通ずる通路を省略してもよい。FIG. 11 shows an embodiment in which a cover 65 is attached to the back of the movable mold 4 to form an air passage surrounding the protruding bottle, and this passage is connected to a vacuum supply source via a pipe 66. In this embodiment, it is possible to effectively prevent air from entering through the protruding bottle portion. Cover 6 as in this example
5, the space 3 formed in the movable mold 4 and the passage communicating with this space may be omitted.
なお、第１図の実施例では３個の弁２３．２４．３５を
使用し、金型やプランジャースリーブへの真空作用時を
制御するようにしたが、この代わりに共通の弁により同
時に真空の断続を行うようにしてもよい。ただし、その
場合にはプランジャー９が給湯口１３．真空吸引口１４
を閉じることができるよう、大径部分を長くすることが
必要である。また、各配管２１，２２゜３４を単一の真
空ポンプ２７に接続する代わりに、それぞれの配管に対
して別個の真空ポンプを設けてもよい。更に、上記実施
例ではプランジャースリーブ９の側面の２ケ所即ち給湯
口１３と真空吸引口１４の両方から真空吸引を行ってい
るが、これはいずれか一方のみとしてもよい。例えば、
真空吸引口１４゛、“−省略し給湯口１３を単一の真空
吸引口として作用させてで、よい。In the embodiment shown in Fig. 1, three valves 23, 24, and 35 were used to control when vacuum is applied to the mold and plunger sleeve, but instead of this, a common valve is used to simultaneously apply vacuum. It is also possible to perform intermittent operation. However, in that case, the plunger 9 is connected to the hot water supply port 13. Vacuum suction port 14
It is necessary to make the large diameter part long so that it can be closed. Also, instead of connecting each pipe 21, 22° 34 to a single vacuum pump 27, a separate vacuum pump may be provided for each pipe. Further, in the embodiment described above, vacuum suction is performed from two locations on the side surface of the plunger sleeve 9, that is, from both the hot water supply port 13 and the vacuum suction port 14, but this may be performed from only one of them. for example,
The vacuum suction port 14'' may be omitted and the hot water supply port 13 may be used as a single vacuum suction port.
しかし、実施例のように、２ケ所から真空吸引を行う構
成とすると、真空吸引力が大きく、シかもプランジャー
がかなり前進するまで、真空吸引をｍｖＥすることがで
き、好ましい。However, if the configuration is such that vacuum suction is performed from two places as in the embodiment, the vacuum suction force is large and the vacuum suction can be performed mvE until the plunger advances considerably, which is preferable.
以上の説明から明らかなように２本発明は、互いに接合
する面の少なくとも一方に製品を成形するキャビティを
備えた複数の金型を有するダイカスト装置において、前
記キャビティを取り囲んで、且つ金型の接合面間の隙間
に通じる空気通路を設け２該空気通路に真空供給源を接
続するという構成を有するものであるので、外部から金
型間の隙間を通ってキャビティ内に漏れる外気を前記空
気通路のところから真空吸引することができ、外気のキ
ャビティ内への侵入を防止して。As is clear from the above description, the present invention provides a die casting apparatus having a plurality of molds each having a cavity for molding a product on at least one of the surfaces to be joined to each other, which surrounds the cavity, and has a mold for joining the molds. Since it has a structure in which an air passage leading to the gap between the surfaces is provided and a vacuum supply source is connected to the air passage, outside air leaking from the outside through the gap between the molds and into the cavity is removed from the air passage. Vacuum suction can be done from anywhere, preventing outside air from entering the cavity.
キャビティ内を高真空度に保つことができ、巣のない良
好な製品を得ることができるという効果を存している。This has the effect that a high degree of vacuum can be maintained inside the cavity and a good product without cavities can be obtained.
なお、第１図の実施例のようにプランジャースリーブ９
に真空供給源を接続し、プランジャースリーブ９゜ラン
ナー７を介してキャビティ６内を真空吸引する構成とす
ると、従来のようにオーバーフローのところから真空吸
引する場合に比べて途中の通路抵抗が小さいため、キャ
ビティ６内を敏速に真空にすることができ。In addition, as in the embodiment shown in FIG. 1, the plunger sleeve 9
By connecting a vacuum supply source to the cavity 6 and vacuuming the inside of the cavity 6 through the plunger sleeve 9° runner 7, the passage resistance along the way is smaller than when vacuum is drawn from the overflow point as in the past. Therefore, the inside of the cavity 6 can be quickly evacuated.
成形サイクルを短縮して製造能力を高めることができ。It can shorten molding cycles and increase manufacturing capacity.
しかもキャビティ６内に高真空を生じさせることができ
、特に薄肉の鋳物、或いは流動性の悪い溶湯を用いた鋳
物の製造時においてもキャビティ内の各部分への確実な
溶湯の圧入を可能にするという効果が得られる。Moreover, it is possible to generate a high vacuum in the cavity 6, making it possible to reliably press the molten metal into each part of the cavity, especially when manufacturing thin-walled castings or castings using molten metal with poor fluidity. This effect can be obtained.
第１図は本発明の一実施例になる真空グイカス）！置の
要部断面図、第２図はその固定金型を可動金型側から見
た平面図、第３図、第４図、第５図は溶湯の工大動作を
説明する要部断面図、第６図は他の実施例における固定
金型の平面図、第７図は更に他の実施例における固定金
型と可動金型の断面図、第８図は第７図の■−■矢視断
面図、第９図、第１０図はそれぞれ他の実施例における
固定金型の平面図、第１１図は更に他の実施例を示す第
５図と同様な断面図である。
１−固定グイブレート ２・−・可動グイプレート３
・・−固定金型 ４−可動金型 ６−・・キャビテ
ィ７・・・ランナー ９−・−・プランジャースリー
ブ１０・−・−プランジャー １３−給湯口１４・−
真空吸引口 １５−・−真空接続口２３．２４・・
・−弁 ２７−真空ポンプ３０．３１−一オーバ
ーフローFigure 1 shows an embodiment of the present invention (vacuum gasket)! 2 is a plan view of the stationary mold seen from the movable mold side; FIGS. 3, 4, and 5 are sectional views of essential parts explaining the engineering operation of molten metal; FIG. 6 is a plan view of a fixed mold in another embodiment, FIG. 7 is a sectional view of a fixed mold and a movable mold in yet another embodiment, and FIG. 8 is a view taken from the ■-■ arrow in FIG. 7. 9 and 10 are plan views of fixed molds in other embodiments, respectively, and FIG. 11 is a sectional view similar to FIG. 5 showing still another embodiment. 1-Fixed Gui plate 2--Movable Gui plate 3
...-Fixed mold 4-Movable mold 6--Cavity 7...Runner 9--Plunger sleeve 10--Plunger 13-Hot water supply port 14--
Vacuum suction port 15-- Vacuum connection port 23.24...
・-Valve 27-Vacuum pump 30.31--Overflow
Claims (1)
ャビティを備えた複数の金型を有するダイカスト装置に
おいて、前記キャビティを取り囲んで、且つ金型の接合
面間の隙間に通じる空気通路を設け、該空気通路に真空
供給源を接続したことを特徴とする真空ダイカスト装置
。In a die-casting device having a plurality of molds each having a cavity for molding a product on at least one of the surfaces to be joined to each other, an air passage is provided surrounding the cavity and communicating with the gap between the joining surfaces of the molds, and the air passage A vacuum die-casting device characterized in that a vacuum supply source is connected to the passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6314386A JPS62220264A (en) | 1986-03-20 | 1986-03-20 | Vacuum die casting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6314386A JPS62220264A (en) | 1986-03-20 | 1986-03-20 | Vacuum die casting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62220264A true JPS62220264A (en) | 1987-09-28 |
Family
ID=13220731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6314386A Pending JPS62220264A (en) | 1986-03-20 | 1986-03-20 | Vacuum die casting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62220264A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6125911A (en) * | 1996-07-17 | 2000-10-03 | Alusuisse Bayrisches Druckguss-Werk Gmbh & Co. Kg | Method and apparatus for manufacturing die-castings |
| KR100715386B1 (en) | 2004-04-20 | 2007-05-07 | 도시바 기카이 가부시키가이샤 | Diecasting device and reduced-pressure casting method |
| KR101482072B1 (en) * | 2013-03-11 | 2015-01-13 | 주식회사 세명테크 | Shot sleeve air vent apparatus and method for die-casting system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5550747A (en) * | 1978-10-11 | 1980-04-12 | Shoji Kondo | Echo distortion suppression system |
| JPS583767A (en) * | 1981-06-30 | 1983-01-10 | Ube Ind Ltd | Gas venting device for die in injection molding device |
| JPS5874261A (en) * | 1981-10-27 | 1983-05-04 | 柳河精機株式会社 | Die for die casting |
| JPS5847360B2 (en) * | 1980-08-12 | 1983-10-21 | 日光ペン株式会社 | How to form an ink pool on a water-based ballpoint pen tip |
| JPS60250867A (en) * | 1984-05-24 | 1985-12-11 | Nippon Denso Co Ltd | Method and device for die casting |
-
1986
- 1986-03-20 JP JP6314386A patent/JPS62220264A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5550747A (en) * | 1978-10-11 | 1980-04-12 | Shoji Kondo | Echo distortion suppression system |
| JPS5847360B2 (en) * | 1980-08-12 | 1983-10-21 | 日光ペン株式会社 | How to form an ink pool on a water-based ballpoint pen tip |
| JPS583767A (en) * | 1981-06-30 | 1983-01-10 | Ube Ind Ltd | Gas venting device for die in injection molding device |
| JPS5874261A (en) * | 1981-10-27 | 1983-05-04 | 柳河精機株式会社 | Die for die casting |
| JPS60250867A (en) * | 1984-05-24 | 1985-12-11 | Nippon Denso Co Ltd | Method and device for die casting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6125911A (en) * | 1996-07-17 | 2000-10-03 | Alusuisse Bayrisches Druckguss-Werk Gmbh & Co. Kg | Method and apparatus for manufacturing die-castings |
| KR100715386B1 (en) | 2004-04-20 | 2007-05-07 | 도시바 기카이 가부시키가이샤 | Diecasting device and reduced-pressure casting method |
| KR101482072B1 (en) * | 2013-03-11 | 2015-01-13 | 주식회사 세명테크 | Shot sleeve air vent apparatus and method for die-casting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62127150A (en) | Spray coating method for parting material to die for die casting | |
| US6461669B1 (en) | Coating mechanism and coating method of powdery mold releasing agent | |
| JP2015120176A (en) | Aluminum die casting apparatus and aluminum die casting method | |
| JPS62207554A (en) | Vacuum die casting device | |
| JPS62220264A (en) | Vacuum die casting apparatus | |
| CN213052682U (en) | High vacuum die casting die | |
| JP2001225161A (en) | Reduced pressure die, reduced pressure- and pressurized die for casting light alloy casting by gravity die casting method and casting device using this reduced pressure die and reduced pressure- and pressurized die | |
| US2866240A (en) | Mechanism for reducing porosity of die castings | |
| JP2743789B2 (en) | Non-porous die casting equipment | |
| US11007567B2 (en) | Die casting machine | |
| JPS62296946A (en) | Vacuum die-casting machine | |
| CN106694846A (en) | Multi-pouring-gate die-casting die | |
| JPH09277007A (en) | Method for applying powdery parting agent in vacuum die casting apparatus and vacuum die casting apparatus therefor | |
| JPH06126412A (en) | Formation of product by meltable material and hot runner and hot tip | |
| CN219944564U (en) | Multi-runner die casting die | |
| JPH01224156A (en) | Vertical type casting apparatus | |
| JPS6372463A (en) | Die casting apparatus | |
| JPH037465B2 (en) | ||
| CN216758104U (en) | Aluminum alloy die-casting flat plate product die-casting die with good appearance effect | |
| JPH04178254A (en) | Vacuum die cast machine | |
| CN220278242U (en) | Die-casting workpiece die with high air tightness valve plate | |
| JPH08252661A (en) | Method and device for metallic injection molding | |
| JPS6337224Y2 (en) | ||
| JPH091307A (en) | Vacuum die-casting apparatus | |
| JP3502585B2 (en) | Powder release agent coating method and mold |