JPS58148067A - Method and machine for die casting - Google Patents
Method and machine for die castingInfo
- Publication number
- JPS58148067A JPS58148067A JP3148982A JP3148982A JPS58148067A JP S58148067 A JPS58148067 A JP S58148067A JP 3148982 A JP3148982 A JP 3148982A JP 3148982 A JP3148982 A JP 3148982A JP S58148067 A JPS58148067 A JP S58148067A
- Authority
- JP
- Japan
- Prior art keywords
- injection
- piston
- molten metal
- counter piston
- injection operation
- 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
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は水平式コールドチャンバ型ダイカスト機による
ダイカスト法及びそのダイカスト機の改良Ｋｌｌする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a die casting method using a horizontal cold chamber type die casting machine and an improvement of the die casting machine.
水平式コールドチャンバ蓋ダイカスト機では、射出スリ
ーブ内に溶湯を給湯し射出すると、射出の際に射出スリ
ーブ内の空気を溶湯内に巻き込み、製品の品質低下を４
たらす欠点があった。In a horizontal cold chamber lid die casting machine, when molten metal is supplied into the injection sleeve and injected, the air inside the injection sleeve is drawn into the molten metal during injection, which reduces the quality of the product.
There were some drawbacks.
その為に％従来よ）キャビティ内と射出スリーブ内の空
気を追出す真空法や、空気を酸素やその他の夏応性ガス
で置換する置換法等種々のダイカスト法が提案されてい
るが、いずれの方法も射出スリーブ内への溶湯注入量（
溶湯充填率）が少ないとさして効果が上らない欠点があ
った。For this purpose, various die-casting methods have been proposed, including a vacuum method in which air is expelled from the cavity and injection sleeve, and a replacement method in which the air is replaced with oxygen or other reactive gases. The method also depends on the amount of molten metal injected into the injection sleeve (
There was a drawback that the effect was not much improved if the molten metal filling rate) was small.
又、との種ダイカスト機では射出スリーブ内への溶湯充
填率が少ないと、溶湯の凝固が早まり國４Ｉが増加し、
製品の品質低下をもたらすと共に、射出スリーブやプラ
ンジャチップ及び金層の寿命を短かくする。In addition, in a die-casting machine, if the filling rate of molten metal into the injection sleeve is low, the molten metal solidifies quickly and the 4I increases.
This results in a decrease in product quality and shortens the life of the injection sleeve, plunger tip, and gold layer.
本発明はこの様な従来法の欠点に鑑み、本来は射出スリ
ーブ内の溶湯充填率が低い場合であっても、射出スリー
ブ内に仮そめの堰を設けることによって、給湯時から射
出時Ｋかけて射出スリーブ内の溶湯充填率を見掛は上高
め、空気巻き込みの同層と同相発生の同層を一挙に解決
し得るダイカスト法及びそのダイカスト機を提供せんと
するものである。In view of the shortcomings of the conventional method, the present invention provides a temporary weir inside the injection sleeve to reduce the K overflow from the time of melt supply to the time of injection, even if the filling rate of molten metal in the injection sleeve is originally low. It is an object of the present invention to provide a die casting method and die casting machine that can increase the apparent filling rate of molten metal in the injection sleeve and solve the problems of the same layer of air entrainment and the same layer of in-phase generation at once.
以下、本発明実施の一例をｗｕｊに基づいて説明すれば
、図中α）紘射出スリーブ、（至）は固定盤、儲）は固
定金型、（６）は可動金蓋である。Hereinafter, an example of the implementation of the present invention will be described based on wuj. In the figure, α) is an injection sleeve, (to) is a fixed plate, (a) is a fixed mold, and (6) is a movable metal lid.
射出スリーブ（１）ＫＩＩｉ溶湯を給湯する丸めの給湯
ｑφ）を開口形成し、金ｍ（２）（２）とは反対側にプ
ランジャチップ−を挿入設置すると共に、金製側にカウ
ンターピストン（至）を出没自在に挿入する。Injection sleeve (1) A round hot water supply qφ) for feeding KIIi molten metal is formed as an opening, a plunger tip is inserted and installed on the side opposite to the gold m (2) (2), and a counter piston (towards the metal side) is formed. ) can be inserted freely.
プランジャチップ（＠紘プフンジャ（８）を介して射出
シリンダ（図示せず）によって射出スリーブ（１）内を
往復摺動し、射出スリーブ０）内の溶湯を金璽に）に）
のキャビテイ軸内へ鋳込むものである。Plunger tip (slides reciprocatingly inside the injection sleeve (1) via the injection cylinder (not shown) via the injection cylinder (8), turning the molten metal in the injection sleeve into a gold seal)
It is cast into the cavity shaft of.
カウンターピストン（７）は可動金型（４）内又は射出
スリーブ（１）内の金層側に設け、射出スリーブ（１）
内を出没自在に往復摺動する。即ち、給湯時乃至射出時
に紘射出スリーブ（１）内に入ってプランジャチップに
）に近付き、射出完了（鋳込）時には射出スリーブ中か
ら出て可―金！Ｉ （４）内に納まる動きをするもので
ある。カウンターピストン（ηはプランジャチップに）
と相対する備のｉ＃（７りを分流子様に形威し、プラン
ジャチップ（匈の射出動作と連−するシリンダ＠に連結
する（ｊＩ１図）か、或いは可動金ｉ１に）内に設置し
九弾発ばれｏ４に連結しく第２図）、前者の場合はシリ
ンダｅ）によって射出スリーブ（１）内を出没自在に往
復ａｌ＊Ｌ、後者の場合は弾発ばね一〇弾発力とプラン
ジャチップ（６）の押圧力によりて射出スリーブ（１）
内を出没自在に往ｆｆｆｆｍする。The counter piston (7) is provided in the movable mold (4) or on the gold layer side in the injection sleeve (1), and
It slides back and forth freely inside. In other words, during hot water supply and injection, it enters the injection sleeve (1) and approaches the plunger tip), and when injection is completed (casting), it can come out from the injection sleeve. I (4). Counter piston (η is on the plunger tip)
The i# of the equipment facing the In the former case, the cylinder e) reciprocates in and out of the injection sleeve (1), and in the latter case, the firing force is 10 bullets. The injection sleeve (1) is opened by the pressing force of the plunger tip (6).
It appears freely inside the room.
尚、射出動作と連動するシリンダ（９）としては中子引
抜音用のシリンダを兼用することもできる。It should be noted that the cylinder (9) which is linked to the injection operation can also be used as a cylinder for making the sound of the core being pulled out.
而して、給湯時には溶湯の給湯量に応じてカウンターピ
ストン（至）をプランジャチップ（６）に近付け、射出
スリーブ（１）内に給湯口（５）を関にして仮そめの堰
を形成しておく。この状態で給湯口（５）から所定量の
給湯を行ない、射出スリーブ（１）内の溶湯充填率を見
掛は上高めておき、射出動作を行なう。すると、プラン
ジャチップ（旬の射出動作と連動してカウンターピスト
ン（至）が可動金Ｉ！（４）側へ移動し、射出動作の始
期にあってはプランジャチップ（６）とカウンターピス
トン（ηとの間隔（イ）は保持され、射出動作の終期に
はカウンターピストン（７）が可動金蓋（４）の凹窪部
曽内に突き当って収納され停止し、分流子の役目を釆し
、プランジャチップ（２）紘その１１射出動作を続けて
溶湯をキャビテイ軸内へ鋳込み、射出動作を完了する。Therefore, when supplying hot water, the counter piston (to) is moved closer to the plunger tip (6) according to the amount of molten metal to be supplied, and a temporary dam is formed in the injection sleeve (1) with the hot water supply port (5) in between. I'll keep it. In this state, a predetermined amount of hot water is supplied from the hot water supply port (5), the molten metal filling rate in the injection sleeve (1) is apparently increased, and an injection operation is performed. Then, in conjunction with the injection operation of the plunger tip, the counter piston (to) moves toward the movable metal I! (4), and at the beginning of the injection operation, the plunger tip (6) and the counter piston (η and The interval (a) is maintained, and at the end of the injection operation, the counter piston (7) hits the recessed part of the movable metal lid (4) and stops, serving as a shunt. Plunger tip (2) 11Continues the injection operation to pour the molten metal into the cavity shaft, completing the injection operation.
次にプランジャチップ←）を後遇さぜると、第１図のも
の紘シリンダ（２）によってカウンターピストン（ηが
射出スリーブ（１）内に侵入し、給湯時の位置で停止し
、第２図のもの祉弾発ばね働の弾発力によってカウンタ
ーピストン（ηが射出スリーブ（１）内に侵入して給湯
時の位置で停止する０
本発明は斯様Ｋ、金履内又社射出スリーブ内の金蓋儒Ｋ
ＪＦウンターピストンを設け、給湯時に皺カウンターピ
ストンをプランジャチップに近付け、カウンターピスト
ンとプランジャチップとの間に＊Ｓを給湯し射出するよ
うにしたので、本来は射出スリーブ内の溶湯充填率が低
い場合であっても、カウンターピスト／によって射出ス
リーブ内に仮そめの堰が形成され、給湯時から射出時に
かけて射出スリーブ内の溶湯充填率を見振社上１００
％近く迄高めることが出来る。従って、射出スリーブ内
への渡湯充槙率が低いが故に生じていた、空気響き込み
の同層も固相発生の問題も完全に解決できて、優れ九ダ
イカスト製品を提供し得るようになる。Next, when the plunger tip ←) is rotated, the counter piston (η) enters the injection sleeve (1) by the Monohiro cylinder (2) in Fig. 1, stops at the position when hot water is supplied, and the second As shown in the figure, the counter piston (η) enters the injection sleeve (1) due to the elastic force of the spring action and stops at the position when hot water is being supplied. Inner Golden Gate Confucian K
By installing a JF counter piston, the wrinkle counter piston is moved closer to the plunger tip during hot water supply, and *S is supplied and injected between the counter piston and the plunger tip, so even if the molten metal filling rate in the injection sleeve is originally low. However, a temporary weir is formed in the injection sleeve by the counter piston, and the filling rate of molten metal in the injection sleeve decreases to 100% from the time of supply to the time of injection.
It can be increased to nearly %. Therefore, the problems of air entrapment in the same layer and solid phase generation, which were caused by the low rate of filling the injection sleeve with hot water, can be completely resolved, making it possible to provide superior die-casting products. .
しかも、本発Ｗ！Ａに係るダイカスト機は構造が簡単で
あ如、金層の交換だけで既設のダイカスト機にも適用で
きる。Moreover, the original W! The die casting machine according to A has a simple structure and can be applied to an existing die casting machine by simply replacing the gold layer.
よって、所期の目的を達成し得る。Therefore, the intended purpose can be achieved.
第１ＩＩは、本発明ダイカスト機の第１発明に係る実施
の一例を示す断面図、第２図は１ｉ１１２発明に係る実
施の一例を示す断＊ＷＡである。
図中、０）は射出スリーブ、（２）し國定盤、Ｑ）紘固
定金蓋、０）は可動金蓋、に）は給湯口、（２）社プラ
ンジャチップ、ψはカウンターピストン、（２）紘プラ
ンジャ、（２）はシリンダ、■は凹窪部、軸状キャビテ
ィ、轡は弾発ばね、である。
特許出願人 扶桑軽合金株式会社1II is a cross-sectional view showing an embodiment of the die-casting machine according to the first invention, and FIG. 2 is a cross-sectional view showing an example of the embodiment according to the 1i112 invention. In the figure, 0) is the injection sleeve, (2) Shikoku surface plate, Q) Hiro fixed metal lid, 0) is the movable metal lid, ni) is the hot water supply port, (2) the company plunger tip, ψ is the counter piston, (2) ) is the plunger, (2) is the cylinder, ■ is the recessed part, the shaft-shaped cavity, and the rim is the spring. Patent applicant Fuso Light Alloy Co., Ltd.
Claims (1)
ストンを設け、給湯時ＫＭカウンターピストンをプラン
ジャチップに近付妙、カウンターピストンとプランジャ
チップとの閾に溶湯を給湯し射出するようにした事を特
徴とするダイカスト法。 （２）金蓋内又は射出スリーブ内の金蓋側にカウンター
ピストンを設け、諌カウンターピストンをプランジャチ
ップの射出動作と連動するシリンダに連結せしめ、プラ
ンジャチップとカウンターピストンとの閾Ｅｌｌ湯を給
湯し射出するようにしてなる事を特徴とするダイカスト
機。 （２）金蓋内又は射出スリーブ内の金蓋側にカウンター
ピストンを設け、該カウンターピストンに弾尭トね食作
用させて射出スツープ内に央出せしめ、プランジャチッ
プとカウンターピストンとの間に溶湯を給湯し射出する
ようにしてなる事を轡黴とするダイカスト機。[Claims] ■ A counter piston is provided inside the metal lid or on the metal lid side of the injection sleeve, and when hot water is supplied, the KM counter piston is brought close to the plunger tip, and molten metal is supplied to the threshold between the counter piston and the plunger tip. A die casting method characterized by injection. (2) A counter piston is provided in the metal lid or on the metal lid side in the injection sleeve, and the sashimi counter piston is connected to a cylinder that is linked to the injection operation of the plunger tip, and the threshold level of hot water between the plunger tip and the counter piston is supplied. A die-casting machine characterized by injection. (2) A counter piston is provided inside the metal lid or on the metal lid side of the injection sleeve, and the counter piston is subjected to bullet eroding so as to be centered in the injection stoop, and the molten metal is placed between the plunger tip and the counter piston. A die-casting machine that generates mold by heating and injecting hot water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3148982A JPS58148067A (en) | 1982-02-27 | 1982-02-27 | Method and machine for die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3148982A JPS58148067A (en) | 1982-02-27 | 1982-02-27 | Method and machine for die casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58148067A true JPS58148067A (en) | 1983-09-03 |
Family
ID=12332675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3148982A Pending JPS58148067A (en) | 1982-02-27 | 1982-02-27 | Method and machine for die casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58148067A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611387A (en) * | 1992-07-23 | 1997-03-18 | Hi-Tec Metals Limited | Moulding device |
| JP2002283034A (en) * | 2001-03-23 | 2002-10-02 | Toshiba Mach Co Ltd | Injection control method of die casting machine |
| US10040117B2 (en) * | 2016-12-29 | 2018-08-07 | Vinet Micro-Technologies Inc. | Contaminant-purging cold chamber die casting apparatus and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5050227A (en) * | 1973-09-04 | 1975-05-06 |
-
1982
- 1982-02-27 JP JP3148982A patent/JPS58148067A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5050227A (en) * | 1973-09-04 | 1975-05-06 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611387A (en) * | 1992-07-23 | 1997-03-18 | Hi-Tec Metals Limited | Moulding device |
| JP2002283034A (en) * | 2001-03-23 | 2002-10-02 | Toshiba Mach Co Ltd | Injection control method of die casting machine |
| JP4684446B2 (en) * | 2001-03-23 | 2011-05-18 | 東芝機械株式会社 | Injection control method and injection apparatus for die casting machine |
| US10040117B2 (en) * | 2016-12-29 | 2018-08-07 | Vinet Micro-Technologies Inc. | Contaminant-purging cold chamber die casting apparatus and method |
| US10875088B2 (en) | 2016-12-29 | 2020-12-29 | Vinet Micro-Technologies Inc. | Contaminant-purging cold chamber die casting apparatus and method |
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