JPH0233960Y2 - - Google Patents
Info
- Publication number
- JPH0233960Y2 JPH0233960Y2 JP1987145827U JP14582787U JPH0233960Y2 JP H0233960 Y2 JPH0233960 Y2 JP H0233960Y2 JP 1987145827 U JP1987145827 U JP 1987145827U JP 14582787 U JP14582787 U JP 14582787U JP H0233960 Y2 JPH0233960 Y2 JP H0233960Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- gate valve
- molten metal
- hot water
- pouring pipe
- 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 244000261422 Lysimachia clethroides Species 0.000 claims description 6
- 238000004512 die casting Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案はダイカスト機及び射出成型機等の射出
成型装置における真空用の金型のキヤビテイ部分
の真空度を高めるためのダイカスト機の真空仕切
弁装置に関するものである。[Detailed description of the invention] (Industrial application field) The present invention is a vacuum gate valve for a die-casting machine to increase the degree of vacuum in the cavity of a vacuum mold in an injection molding device such as a die-casting machine or an injection molding machine. It is related to the device.
（従来の技術）
従来のホツトチヤンバダイカスト機における真
空装置の射出装置は、例えば、第５図に示す一例
では、金型が閉じた後の通常の状態を示し、型締
めが完了すると、真空装置１９が作動して固定金
型２と移動金型１との間のキヤビテイ８の内部を
真空にする。真空度を達成後、副シリンダー２４
を作動させてカツト用ロツド２５を上方に引き上
げた後に、射出シリンダー１７が作動し、そのプ
ランジヤー１６が下降するのでメルテイングポツ
ト５の溶湯１３は、グースネツク１４の流入口１
５より上昇して湯導１２を通り、保温注湯管１１
を通過してキヤビテイ８内へ高速射出されるもの
である。(Prior Art) The injection device of the vacuum device in a conventional hot chamber die-casting machine, for example, shows the normal state after the mold is closed, and the vacuum injection device in the example shown in FIG. The device 19 operates to create a vacuum inside the cavity 8 between the stationary mold 2 and the movable mold 1. After achieving the degree of vacuum, the secondary cylinder 24
After the cutting rod 25 is pulled upward, the injection cylinder 17 is activated and its plunger 16 is lowered, so that the molten metal 13 in the melting pot 5 flows into the inlet 1 of the goose neck 14.
5, passes through the molten metal guide 12, and enters the heat-retaining molten metal pouring pipe 11.
It passes through and is injected into the cavity 8 at high speed.
然し、この場合、真空装置１９が作動した時
に、湯導１２の溶湯１３を吸込む恐れが生じ、真
空の減圧効果を阻害したり、次回にじつしされる
高速射出が速やかに実施されにくくなる欠点があ
る。 However, in this case, when the vacuum device 19 is activated, there is a risk that the molten metal 13 from the molten metal guide 12 will be sucked in, which may impede the decompression effect of the vacuum or make it difficult to carry out the next high-speed injection promptly. There are drawbacks.
また、高速、高圧で溶融金属を金型のキヤビテ
イ内に射出する場合、キヤビテイ内のガスが充分
に抜けきらず、結局は鋳物内に残存し、鋳物内に
鬆を形成する欠点が生ずる。 Furthermore, when molten metal is injected into the cavity of a mold at high speed and high pressure, the gas in the cavity cannot be sufficiently removed, resulting in the gas remaining in the casting, resulting in the formation of a cavity in the casting.
（考案が解決しようとする問題点）
本考案は、上記従来の如き欠点を解決するため
に考案したものであつて、その主たる目的とする
所は、真空作用時において溶湯がキヤビテイ内に
侵入するのを防止し、且つ真空作用が終了して、
真空度が設定圧に到達すると、移動分流仕切弁を
開放し、溶湯を高速射出させて金型のキヤビテイ
内へ可及的速やかに充満させ、鬆のない良質の強
度の大なる鋳物を確実容易に得るようにした点に
ある。(Problems to be solved by the invention) The present invention was devised to solve the above-mentioned conventional drawbacks, and its main purpose is to prevent molten metal from entering the cavity during vacuum operation. , and after the vacuum action is finished,
When the degree of vacuum reaches the set pressure, the moving diverter gate valve is opened and molten metal is injected at high speed to fill the mold cavity as quickly as possible, making it easy to reliably produce high-quality, strong castings with no cracks. That's what I was trying to get at.
（問題点を解決するための手段）
本考案の真空仕切弁装置によれば、上述の如て
く、溶湯がキヤビテイ内に侵入するのを防止して
従来の問題点を解決せんとするもので、その構成
とする所は、湯導１２に連通する保温注湯管１１
の先端を固定金型２の湯入受口１０に連結する。
この固定金型２には、移動金型１が対接すると共
に、該移動金型１にシリンダー駆動部６を装設し
てある。このシリンダー駆動部６には、内部に保
温注湯管１１の湯導１２を閉塞する移動分流仕切
弁７を進退自在に装設した点にある。(Means for Solving the Problems) According to the vacuum gate valve device of the present invention, as described above, the conventional problems are solved by preventing molten metal from entering the cavity. Its structure consists of a heat-retaining molten pouring pipe 11 that communicates with the molten metal guide 12.
The tip of the mold is connected to the hot water receiving port 10 of the fixed mold 2.
A movable mold 1 is in contact with the fixed mold 2, and a cylinder driving section 6 is installed on the movable mold 1. This cylinder drive unit 6 is provided with a movable flow dividing gate valve 7 that closes the hot water guide 12 of the heat-insulating molten metal pouring pipe 11 so as to be able to move forward and backward.
（実施例）
次に、本考案の実施態様について図面に示した
実施例に従って説明すると、第１図において、１
は、ホツトチヤンバダイカスト機における移動金
型を示し、この移動金型１には、相対する固定金
型２がダイプレート３等に取着されている。５は
メルテイングポツトを示し、このメルテイングポ
ツト５の内部には、グースネツク１４が設けられ
ている。このグースネツク１４には、該溶湯１３
と連通する流入口１５を形成すると共に、湯溜部
１８を設けたプランジヤー１６が装設せしめてあ
る。該プランジヤー１６の上部には、射出シリン
ダー１７が設置されている。(Example) Next, the embodiment of the present invention will be explained according to the example shown in the drawings.
1 shows a movable mold in a hot chamber die-casting machine, and to this movable mold 1, an opposing stationary mold 2 is attached to a die plate 3 and the like. Reference numeral 5 indicates a melting pot, and a gooseneck 14 is provided inside the melting pot 5. This gooseneck 14 has the molten metal 13
A plunger 16 is installed, which forms an inlet 15 that communicates with the tank, and is provided with a sump 18. An injection cylinder 17 is installed above the plunger 16.
次に、前記移動金型１には、各種の油圧又は空
気圧等からなるシリンダー駆動部６を装設してあ
る。このシリンダー駆動部６には、内部に湯入受
口１０を開閉自在に閉塞する移動分流仕切弁７を
ロツドの進退によつて作動するようになつてい
る。また該移動金型１には、製品２０ができる空
間であるキヤビテイ８を形成する。 Next, the movable mold 1 is equipped with a cylinder drive unit 6 that uses various types of hydraulic or pneumatic pressure. This cylinder drive section 6 has a movable flow dividing gate valve 7 therein which freely opens and closes the hot water inlet 10 and is operated by moving the rod forward and backward. Further, a cavity 8 is formed in the movable mold 1, which is a space in which a product 20 is formed.
前記固定金型２には、該湯入受口１０を形成す
ると共に湯入受口１０に連結するヒーター等で保
温される保温注湯管１１を装設してある。この保
温注湯管１１には、該湯溜部１８と連通する湯導
１２が内部に形成される構成となつている。符号
１９は、該キヤビテイ８の内部を真空にする真空
装置を示し、２１は、該製品２０の湯口部を示
し、２６は炉壁を示したものである。 The fixed mold 2 is equipped with a heat-retaining pouring pipe 11 that forms the hot water supply socket 10 and is kept warm by a heater or the like connected to the hot water supply socket 10. The heat-retaining molten metal pouring pipe 11 is configured to have a molten metal guide 12 formed therein, which communicates with the molten metal reservoir 18 . Reference numeral 19 indicates a vacuum device that evacuates the inside of the cavity 8, 21 indicates a sprue of the product 20, and 26 indicates a furnace wall.
（作 用）
本考案は上記の如き構成からなり、今この考案
の作用を説明すると、第１図に示すように移動金
型１が閉じられ、型締めが完了すると、信号によ
り射出シリンダー１７が低速前進し、プランジヤ
ー１６が下降するのでグースネツク１４内の湯溜
部１８に入つている溶湯１３は湯導１２を経て熱
源により保温されている保温注湯管１１の先端ま
できたところで、射出シリンダー１７を一時停止
させる。この一時停止の信号によつて、移動金型
１に設けたシリンダー駆動部６の移動分流仕切弁
７を前進させ、湯入受口１０を第２図に示すよう
に閉塞せしめる。この移動分流仕切弁７の閉鎖信
号で真空装置１９を作動させてキヤビテイ８の内
部を減圧する。このキヤビテイ８内の真空度が設
定圧に到達すると信号を発信し、その信号によつ
て該射出シリンダー１７は、再度高速射出工程に
移り同時に信号によつてシリンダー駆動部６にも
受信させ移動分流仕切弁７は後退し、湯入受口１
０を開放するから、湯導１２の溶湯１３は湯入受
口１０を通りキヤビテイ８内に高速圧入するもの
である。その後、鋳物の冷却時間を待つて移動金
型１を開き製品２０を取り出すものである。上記
の製造工程を順次繰り返して鋳物製品を製作する
ものである。(Function) The present invention has the above-mentioned configuration, and to explain the function of this invention now, as shown in Fig. 1, the movable mold 1 is closed, and when the mold clamping is completed, the injection cylinder 17 is activated by a signal. As the plunger 16 moves forward at a low speed and descends, the molten metal 13 in the sump 18 in the gooseneck 14 passes through the molten metal guide 12 and reaches the tip of the heat-insulating molten pouring pipe 11 kept warm by the heat source, when it reaches the injection cylinder 17. to pause. In response to this temporary stop signal, the movable flow dividing gate valve 7 of the cylinder drive unit 6 provided in the movable mold 1 is advanced to close the hot water socket 10 as shown in FIG. The vacuum device 19 is operated in response to the closing signal of the movable flow dividing gate valve 7 to reduce the pressure inside the cavity 8. When the degree of vacuum in the cavity 8 reaches the set pressure, a signal is transmitted, and the injection cylinder 17 starts the high-speed injection process again based on the signal, and at the same time, the cylinder drive section 6 also receives the signal and moves and diverts the flow. The gate valve 7 moves back and the hot water inlet 1
0 is opened, the molten metal 13 in the molten metal guide 12 passes through the molten metal inlet 10 and is press-fitted into the cavity 8 at high speed. Thereafter, after waiting time for the casting to cool down, the movable mold 1 is opened and the product 20 is taken out. A cast product is manufactured by sequentially repeating the above manufacturing process.
（考案の効果）
以上の説明の如く本考案による真空仕切弁装置
によれば、キヤビテイの内部を真空中には溶湯の
吸い込みがなく、真空装置の開閉により、キヤビ
テイ内の真空度を高揚せしめるため、製品に鬆の
ない良質の強度が大なる鋳物を安全確実に製作で
きる優れた効果がある。更に、移動金型に設けた
シリンダー駆動部は、その装設が大変に容易であ
ると共に、既存の移動金型の一部を改造すること
によつても容易に装設できると云う従来にない優
れた効果がある。また、シリンダー駆動部の内部
に設けた湯導を閉塞する移動分流仕切弁を進退自
在に装設せしめてあるので、固定金型の湯入受口
を確実に開閉して故障等の生じる憂いがない効果
がある。(Effects of the invention) As explained above, according to the vacuum gate valve device of the invention, there is no molten metal sucked into the vacuum inside the cavity, and the degree of vacuum inside the cavity is increased by opening and closing the vacuum device. This method has the excellent effect of safely and reliably producing high-quality, high-strength castings with no defects in the product. Furthermore, the cylinder drive section provided in the movable mold is extremely easy to install, and can also be easily installed by modifying a part of the existing movable mold, which is unprecedented. It has excellent effects. In addition, a movable flow dividing gate valve is installed inside the cylinder drive unit that closes the molten metal conduit so that it can move forward and backward to ensure that the molten metal inlet of the fixed mold can be opened and closed without worrying about malfunctions. There is no effect.
更に、本考案の移動分流仕切弁の先端は、該保
温注湯管の入口で溶湯を停止しているので、次に
実施される高速射出が敏速に行われるから、サイ
クルタイムが著しく短縮されると云う従来にない
優れた効果がある。 Furthermore, since the tip of the movable flow dividing gate valve of the present invention stops the molten metal at the inlet of the heat-insulating molten metal pouring pipe, the next high-speed injection can be carried out quickly, so the cycle time is significantly shortened. It has an excellent effect that has never been seen before.
第１図は本考案の一部欠除した縦断側面図、第
２図は同じく要部の作動状態を示す側面図、第３
図は同じく要部の作動状態を示す側面図、第４図
は本考案による成型品の断面図、第５図は従来の
作動状態を示す縦断側面図である。符号１は移動
金型、２は固定金型、５はメルテイングポツト、
６はシリンダー駆動部、７は移動分流仕切弁、８
はキヤビテイ、１０は湯入受口、１１は保温注湯
管、１２は湯導、１４はグースネツク、１５は流
入口、１６はプランジヤー、１７は射出シリンダ
ー、２３は従来の固定分流子である。
Fig. 1 is a partially cutaway vertical side view of the present invention, Fig. 2 is a side view showing the operating state of the main parts, and Fig. 3 is a side view of the present invention.
4 is a sectional view of the molded product according to the present invention, and FIG. 5 is a longitudinal sectional side view showing the conventional operating state. 1 is a moving mold, 2 is a fixed mold, 5 is a melting pot,
6 is a cylinder drive unit, 7 is a movable flow dividing gate valve, 8
10 is a cavity, 10 is a hot water inlet, 11 is a hot water pouring pipe, 12 is a hot water guide, 14 is a goose neck, 15 is an inlet, 16 is a plunger, 17 is an injection cylinder, and 23 is a conventional fixed flow divider.
Claims (1)
ネツクの内部に位置する、湯導に連通する保温注
湯管を有するダイカスト機の、真空仕切弁装置に
おいて、前記保温注湯管１１の先端を固定金型２
の湯入受口に連通し、該固定金型２は、移動金型
１を対接すると共に、ダイプレート３に取着し、
前記移動金型１には、各種の油圧または空気圧等
からなるシリンダー駆動部６を装設すると共に、
シリンダー駆動部６には、内部に湯入受口１０
を、開閉自在に閉塞する、進退自在の、移動分流
仕切弁７を装設し、且つ該固定金型２に連通する
位置の、該保温注湯管１１は、ヒーターで保温す
ると共に、先端を湯溜部１８と連通する湯導１２
に連通したことを特徴とする、ダイカスト機の真
空仕切弁装置。 In a vacuum gate valve device of a hot chamber die-casting machine having a heat-insulating molten pouring pipe located inside the gooseneck and communicating with the molten metal guide, the tip of the heat-insulating molten water pouring pipe 11 is fixed to the mold 2.
The fixed mold 2 faces the movable mold 1 and is attached to the die plate 3,
The movable mold 1 is equipped with a cylinder drive unit 6 that uses various types of hydraulic or pneumatic pressure, and
The cylinder drive unit 6 has a hot water inlet 10 inside.
The hot pouring pipe 11, which is equipped with a movable flow dividing gate valve 7 which can be freely opened and closed and which can move forward and backward, and which is connected to the fixed mold 2, is kept warm by a heater and has a tip end. Hot water guide 12 communicating with hot water reservoir 18
A vacuum gate valve device for a die-casting machine, characterized in that it communicates with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987145827U JPH0233960Y2 (en) | 1987-09-22 | 1987-09-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987145827U JPH0233960Y2 (en) | 1987-09-22 | 1987-09-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6449352U JPS6449352U (en) | 1989-03-27 |
| JPH0233960Y2 true JPH0233960Y2 (en) | 1990-09-12 |
Family
ID=31414756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987145827U Expired JPH0233960Y2 (en) | 1987-09-22 | 1987-09-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0233960Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS527882B2 (en) * | 1971-08-27 | 1977-03-05 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5232734Y2 (en) * | 1974-05-08 | 1977-07-26 | ||
| JPS527882U (en) * | 1975-07-04 | 1977-01-20 | ||
| JPS5637897Y2 (en) * | 1977-04-04 | 1981-09-04 |
-
1987
- 1987-09-22 JP JP1987145827U patent/JPH0233960Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS527882B2 (en) * | 1971-08-27 | 1977-03-05 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6449352U (en) | 1989-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2181157A (en) | Method and apparatus for pressure casting | |
| US5181551A (en) | Double acting cylinder for filling dies with molten metal | |
| EP0527747B1 (en) | Valve mechanism for casting metal alloys with low melting temperatures | |
| JPS602948B2 (en) | Vacuum die casting equipment | |
| US2582029A (en) | Die casting machine | |
| CN101698225A (en) | Gravity flow quantitative pouring continuous casting continuous forging equipment | |
| JPH0233960Y2 (en) | ||
| EP0368573B1 (en) | Method and apparatus for casting metal alloys with low melting temperatures | |
| JPS642469B2 (en) | ||
| CN213052682U (en) | High vacuum die casting die | |
| JPH0421632Y2 (en) | ||
| JP3655992B2 (en) | Vacuum die casting apparatus and casting method | |
| JPS60148655A (en) | Cold chamber die casting machine | |
| JPH0687060A (en) | Injection plunger device in die casting machine | |
| JPH0451261B2 (en) | ||
| JP2537183Y2 (en) | Casting machine injection cylinder | |
| JPH0544362U (en) | Die casting machine | |
| JPH0642986B2 (en) | Hot water pump for molten metal | |
| JP2554982B2 (en) | Molten metal sensor mechanism of cold chamber type die casting machine | |
| JPH03285749A (en) | Vertical type die casting machine | |
| JPS6117349A (en) | Cold chamber type die casting machine | |
| JPS5851784B2 (en) | Non-porous vacuum die casting method | |
| JPH0227969Y2 (en) | ||
| JPH0475757A (en) | Squeezing casting process | |
| JP2866215B2 (en) | Die casting machine |