JPH0899161A - Ejection sleeve for die casting - Google Patents
Ejection sleeve for die castingInfo
- Publication number
- JPH0899161A JPH0899161A JP23716294A JP23716294A JPH0899161A JP H0899161 A JPH0899161 A JP H0899161A JP 23716294 A JP23716294 A JP 23716294A JP 23716294 A JP23716294 A JP 23716294A JP H0899161 A JPH0899161 A JP H0899161A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- injection sleeve
- ejection sleeve
- fitting member
- gate
- 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.)
- Granted
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はアルミニウム合金、亜鉛
合金などの非鉄金属をダイカスト鋳造やスクイズキャス
ト鋳造するためのコールドチャンバー型式の射出スリー
ブに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold chamber type injection sleeve for die casting or squeeze casting of non-ferrous metals such as aluminum alloy and zinc alloy.
【０００２】[0002]
【従来の技術】従来、横型締、横鋳込型ダイカストマシ
ンでは、一端部に注湯口１０を有する射出スリーブ７内
にプランジャチップ９を摺動自在に収納し、この射出ス
リーブ７の他端部をゲートを介して金型間に形成された
製品キャビティ６に連通してあり、上記プランジャチッ
プ９の進入により射出スリーブ７内の溶湯金属１１をキ
ャビティ６内へ充填させて凝固させるようになってい
る。2. Description of the Related Art Conventionally, in a horizontal die clamping / horizontal casting die casting machine, a plunger tip 9 is slidably housed in an injection sleeve 7 having a pouring port 10 at one end, and the other end of the injection sleeve 7 is held. Through the gate to the product cavity 6 formed between the molds, and the molten metal 11 in the injection sleeve 7 is filled into the cavity 6 by the entry of the plunger tip 9 to solidify. There is.
【０００３】[0003]
【発明が解決しようとする課題】ところが、このような
従来の射出スリーブ７において、次のような問題があっ
た。すなわち、射出スリーブ内の上部空間１２に存在す
る空気が溶湯金属１１の射出の際射出スリーブ７内の空
気を巻込み、そのままキャビティ６内に圧入されるの
で、多数の鋳巣となって鋳造物の強度、耐圧、肌などを
劣化せしめていた。However, the conventional injection sleeve 7 as described above has the following problems. That is, when the molten metal 11 is injected, the air existing in the upper space 12 in the injection sleeve entrains the air in the injection sleeve 7 and is press-fitted into the cavity 6 as it is, resulting in a large number of cavities. Had deteriorated the strength, pressure resistance, and skin.
【０００４】このような射出スリーブ内の上部空間１２
の空気の排出をスムーズに行うために、図９に示すよう
に射出スリーブ７の上部に空気抜き孔１３を設けてあ
る。特にプランジャチップ９が低速度から高速度に切替
わる位置に空気抜き孔１３を設けるとともに、この空気
抜き孔１３から導管１５を介して真空ポンプ１６より空
気を急速に真空脱気するので、より射出スリーブ内の上
部空間１２の空気の排出がスムーズに行いやすいという
利点はあるものの、プランジャチップ９の低速度から高
速度への切替え位置は例えば成形品外部に多少の湯じわ
が生じても成形品の内部に鋳巣の少ないものを所望する
場合はゲート打ちなど比較的ゲート１４部に近い位置で
行われている。The upper space 12 in such an injection sleeve
In order to smoothly discharge the air, the air vent hole 13 is provided in the upper part of the injection sleeve 7 as shown in FIG. Particularly, since the air vent hole 13 is provided at the position where the plunger tip 9 switches from the low speed to the high speed, and the air is rapidly degassed by the vacuum pump 16 from the air vent hole 13 through the conduit 15 in the injection sleeve. Although there is an advantage that the air in the upper space 12 can be discharged smoothly, the switching position of the plunger tip 9 from the low speed to the high speed is, for example, inside the molded product even if some wrinkles occur outside the molded product. When it is desired to have a small number of cavities, it is performed at a position relatively close to the gate 14 such as a gate driving.
【０００５】一方、成形品内部に鋳巣が多くとも成形品
外部に湯じわのない光沢のものを所望する場合は、射出
開始から早いうちに低速度から高速度に切替え位置をそ
の都度移動する必要があり、この移動に伴って空気抜き
孔１３の位置も同時に変更しなければならない。On the other hand, when it is desired that the molded product has a large number of porosity inside and no luster outside the molded product, the switching position is changed from low speed to high speed as soon as possible after the start of injection. The position of the air vent hole 13 must be changed at the same time as this movement.
【０００６】また、比較的凝固しやすい溶湯金属１１を
使用してダイカスト鋳造する場合には低速度から高速度
への切替え位置を射出開始から短い時間で行う（ゲート
１４から離れた位置）必要があり、逆に凝固が遅い溶湯
金属１１を使用してダイカスト鋳造する場合には低速度
から高速度への切替え位置をゲート１４に近い位置で行
う必要があり、空気抜き孔１３の位置移動のために射出
スリーブ７をその都度交換するのは事実上不可能である
といった問題があった。Further, in the case of die casting using the molten metal 11 which is relatively easy to solidify, it is necessary to switch the position from low speed to high speed within a short time from the start of injection (position away from the gate 14). On the contrary, in the case of die casting using the molten metal 11 having a slow solidification, it is necessary to perform the switching position from the low speed to the high speed at a position close to the gate 14, and in order to move the position of the air vent hole 13. There is a problem that it is virtually impossible to replace the injection sleeve 7 each time.
【０００７】本発明は上記従来の問題点に鑑みてなされ
たもので、低速度から高速度への切替え位置に合わせて
射出スリーブ内の空気を自由に抜くことができるダイカ
スト用射出スリーブを提供することを目的とするもので
ある。The present invention has been made in view of the above-mentioned problems of the prior art, and provides an injection sleeve for die casting in which the air in the injection sleeve can be freely evacuated in accordance with the switching position from low speed to high speed. That is the purpose.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係る第１の発明では型締された金型のキャ
ビティ内へその水平方向から溶湯を鋳込むようにした水
平状射出スリーブの内周上面に断面が逆台形状の凹欠部
を形成し、前記凹欠部に長さの異なる嵌合部材を装着可
能とするとともに、前記嵌合部材内に真空ポンプに通じ
る脱気孔を設けた構成にし、第２の発明では型締された
金型のキャビティ内へその水平方向から溶湯を鋳込むよ
うにした水平状射出スリーブの内周上面に断面が逆台形
状の凹欠部を形成し、前記凹欠部に長さの異なる嵌合部
材を装着可能とするとともに、前記嵌合部材の軸方向に
離間して真空ポンプに通じる脱気用の開閉装置を配設し
た構成にする。In order to achieve the above object, according to the first aspect of the present invention, a horizontal injection in which a molten metal is cast into a cavity of a mold which is clamped from the horizontal direction. A recessed portion having an inverted trapezoidal cross section is formed on the upper surface of the inner periphery of the sleeve, and fitting members having different lengths can be mounted in the recessed portion, and a deaeration hole communicating with a vacuum pump is provided in the fitting member. According to the second aspect of the present invention, a recessed portion having an inverted trapezoidal cross section is formed on the upper surface of the inner circumference of a horizontal injection sleeve in which the molten metal is cast into the cavity of the mold that is clamped from the horizontal direction. And a fitting member having a different length can be mounted in the recessed portion, and an opening / closing device for deaeration that is separated from the fitting member in the axial direction and communicates with a vacuum pump is provided. To do.
【０００９】[0009]
【作用】射出時の低速度から高速度への切替え位置に合
わせて射出スリーブの内周上面に凹欠部を設け、ここに
長さの異なる嵌合部材を交換可能に装着するとともに、
この嵌合部材内に真空ポンプに通じる脱気孔や開閉装置
を設けたので、この脱気孔または開閉弁が空気抜け路と
なって射出スリーブ内の溶湯金属の上部空気をスムーズ
に排出でき成形品の内・外部に湯じわや鋳巣のない成形
品を成形できる。[Operation] A recessed portion is provided on the inner peripheral upper surface of the injection sleeve in accordance with the switching position from the low speed to the high speed at the time of injection, and fitting members having different lengths are replaceably attached to the recessed portion.
Since a deaeration hole and an opening / closing device leading to the vacuum pump are provided in this fitting member, the deaeration hole or the opening / closing valve serves as an air vent and the upper air of the molten metal in the injection sleeve can be smoothly discharged. Molded products with no wrinkles or porosity inside or outside can be formed.
【００１０】[0010]
【実施例】以下に、本発明に係るダイカスト用射出スリ
ーブの具体的実施例を図面を参照して詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the injection sleeve for die casting according to the present invention will be described in detail below with reference to the drawings.
【００１１】図１は本発明に係る射出スリーブを有した
ダイカスト装置の実施例を示す断面図、図２は溶湯金属
の注湯完了時の射出スリーブの断面図、図３は低速度時
の射出スリーブ内の空気流れを示す説明図、図４は低速
度から高速度へ切替わる直前の射出スリーブ内の空気流
れを示す説明図、図５は高速度時の射出スリーブ内の空
気流れを示す説明図、図６は図２のＡ〜Ａからみた横断
面図、図７は本発明に係るダイカスト用射出スリーブの
別の実施例を示す縦断面図、図８は開閉装置の部分拡大
断面図である。FIG. 1 is a sectional view showing an embodiment of a die casting apparatus having an injection sleeve according to the present invention, FIG. 2 is a sectional view of an injection sleeve at the completion of pouring of molten metal, and FIG. 3 is an injection at a low speed. FIG. 4 is an explanatory view showing the air flow in the sleeve, FIG. 4 is an explanatory view showing the air flow in the injection sleeve immediately before switching from low speed to high speed, and FIG. 5 is an explanation showing the air flow in the injection sleeve at high speed. FIG. 6, FIG. 6 is a horizontal cross-sectional view seen from AA of FIG. 2, FIG. 7 is a vertical cross-sectional view showing another embodiment of the injection sleeve for die casting according to the present invention, and FIG. 8 is a partially enlarged cross-sectional view of the opening / closing device. is there.
【００１２】図１において、符号２２は固定ベース２０
に配された可動プラテンで、この可動プラテン２２は図
示しない油圧ピストンにより左右方向に摺動自在に設け
られている。In FIG. 1, reference numeral 22 is a fixed base 20.
The movable platen 22 is arranged in a horizontal direction by a hydraulic piston (not shown).
【００１３】この可動プラテン２２の一側面にはダイベ
ース２４が固定され、さらにこのダイベース２４には可
動金型２６が固定されている。A die base 24 is fixed to one side surface of the movable platen 22, and a movable die 26 is fixed to the die base 24.
【００１４】符号２８は、固定ベース２０上に固定され
た固定プラテンで、この固定プラテン２８には固定金型
３０が固定されている。Reference numeral 28 is a fixed platen fixed on the fixed base 20, and a fixed mold 30 is fixed to the fixed platen 28.
【００１５】この可動金型２６が図中右方向に摺動して
固定金型３０に当接すると、可動金型２６と固定金型３
０との間に製品キャビティ６が、また製品キャビティ６
とランナ部３２とを結ぶゲート１４が形成される。When the movable mold 26 slides to the right in the figure and comes into contact with the fixed mold 30, the movable mold 26 and the fixed mold 3 are brought together.
Product cavity 6 between 0 and
The gate 14 that connects the runner portion 32 with the runner portion 32 is formed.
【００１６】ランナ部３２内には射出スリーブ７の一端
が開口しており、この射出スリーブ７の他端側からプラ
ンジャチップ９が挿入されている。One end of the injection sleeve 7 is opened in the runner portion 32, and the plunger tip 9 is inserted from the other end side of the injection sleeve 7.
【００１７】そして、この射出スリーブ７に設けた注湯
口１０より溶湯金属１１が注入され、プランジャチップ
９が図中左方向に前進することにより溶湯金属１１がラ
ンナ部３２、ゲート１４、製品キャビティ６に至る。Then, the molten metal 11 is injected from a pouring port 10 provided in the injection sleeve 7, and the plunger tip 9 is advanced to the left in the figure, so that the molten metal 11 is covered by the runner portion 32, the gate 14 and the product cavity 6. Leading to.
【００１８】前記製品キャビティ６およびランナ部３２
に対向する位置には押出板３６に固定された押出ピン３
８が配され、可動金型２６と固定金型３０が開いた時に
製品を押出す役目を担っている。The product cavity 6 and the runner portion 32
The push pin 3 fixed to the push plate 36 at a position facing
8 is arranged and has a role of pushing out the product when the movable mold 26 and the fixed mold 30 are opened.
【００１９】符号４０は排気バルブ、４２は前記プラン
ジャチップ９の低速度から高速度への速度切替え位置を
検知するリミットスイッチである。Reference numeral 40 is an exhaust valve, and 42 is a limit switch for detecting the speed switching position of the plunger tip 9 from low speed to high speed.
【００２０】本実施例では、特に、図６に示すように射
出スリーブ７の軸方向内周上面７ａに所定長さを有した
断面が逆台形状の凹欠部７ｂを形成してある。In the present embodiment, in particular, as shown in FIG. 6, a recessed portion 7b having a predetermined length and having an inverted trapezoidal cross section is formed on the axially inner peripheral upper surface 7a of the injection sleeve 7.
【００２１】凹欠部７ｂは射出スリーブ７の固定プラテ
ン２８近傍から射出スリーブ７の後端側まで形成してあ
り、この凹欠部７ｂに断面が台形状の嵌合部材７ｃを装
着可能になっている。The recess 7b is formed from the vicinity of the fixed platen 28 of the injection sleeve 7 to the rear end side of the injection sleeve 7, and a fitting member 7c having a trapezoidal cross section can be mounted in the recess 7b. ing.
【００２２】また、前記嵌合部材７ｃには空気抜き孔１
３が設けられており、この空気抜き孔１３は竪孔１３ａ
を有した空気抜き孔入口１３ｃと円周上面７ａに面する
側の嵌合部材７ｃの上面部に固定プラテン２８に向う射
出スリーブ７の軸芯方向に設けた横孔１３ｂと、固定プ
ラテン２８に近い射出スリーブ７の内周上面７ａに導管
１５を介して真空ポンプ１６に通じる空気抜き出口１３
ｄから構成されている。Further, the fitting member 7c has an air vent hole 1
3 is provided, and the air vent hole 13 is a vertical hole 13a.
The air vent hole inlet 13c having a hole and a lateral hole 13b provided in the axial direction of the injection sleeve 7 facing the fixed platen 28 on the upper surface portion of the fitting member 7c on the side facing the circumferential upper surface 7a and the fixed platen 28 are close. An air vent port 13 that communicates with a vacuum pump 16 via a conduit 15 on the inner peripheral upper surface 7a of the injection sleeve 7.
It is composed of d.
【００２３】特に、本実施例では空気抜き孔入口１３ｃ
の位置を射出スリーブ７の軸芯方向上で種々変えた嵌合
部材７ｃを用意することにより、溶湯金属１１の種類や
所望する成形品の内・外部の初期仕様に応じて使い分け
が可能となっている。なお、符号４４は嵌合部材７ｃの
位置を固定する押えボルトである。Particularly, in this embodiment, the air vent hole inlet 13c
By preparing a fitting member 7c in which the position of is variously changed in the axial center direction of the injection sleeve 7, it is possible to selectively use the molten metal 11 according to the type of the molten metal 11 and desired internal / external initial specifications of the molded product. ing. Reference numeral 44 is a holding bolt for fixing the position of the fitting member 7c.
【００２４】次に本実施例の作動を説明する。Next, the operation of this embodiment will be described.
【００２５】まず可動金型２６を前進させて固定金型３
０に当接させ、型締を行う。そして排気バルブ４０を開
く。First, the movable mold 26 is advanced to move the fixed mold 3
Abut 0 to clamp the mold. Then, the exhaust valve 40 is opened.
【００２６】次に射出スリーブ７の注湯口１０より所定
量の溶湯金属１１を注湯させ（図２）、プランジャチッ
プ９を低速前進させ（図３、図４）、リミットスイッチ
４２をけった時点で高速前進させるのである。Next, a predetermined amount of molten metal 11 is poured from the pouring port 10 of the injection sleeve 7 (FIG. 2), the plunger tip 9 is advanced at a low speed (FIGS. 3 and 4), and the limit switch 42 is turned off. To move forward at high speed.
【００２７】プランジャチップ９を低速前進開始後プラ
ンジャチップ９が注湯口１０を塞いだ状態下で真空ポン
プ１６を起動し射出スリーブ内の上部空間１２の空気を
減圧状態になるまで吸引排出するのである。After the plunger tip 9 starts to move forward at a low speed, the vacuum pump 16 is started under the condition that the plunger tip 9 closes the pouring port 10, and the air in the upper space 12 in the injection sleeve is sucked and discharged until the pressure is reduced. .
【００２８】ところで、低速度から高速度への速度切替
え位置に対応して射出スリーブ内の上部空間１２の空気
が嵌合部材７ｃの空気抜き孔１３から十分逃げるように
空気抜き孔入口１３ｃを射出スリーブ７の軸芯方向に変
化させ得る嵌合部材７ｃの装着が可能であるが、一般的
には次のような考え方に基づいて嵌合部部材７ｃを変え
るのである。By the way, the injection sleeve 7 is provided with the air vent hole inlet 13c so that the air in the upper space 12 in the injection sleeve can sufficiently escape from the air vent hole 13 of the fitting member 7c corresponding to the speed switching position from the low speed to the high speed. Although it is possible to mount the fitting member 7c that can be changed in the axial center direction, generally, the fitting portion member 7c is changed based on the following concept.
【００２９】まず、一般的に使用されるＡｌ−Ｓｉ−Ｃ
ｕ系ＡＤＣ１２（含胴シルミン）のアルミニウム合金を
用いた場合では溶湯金属１１の凝固が比較的遅いために
ゲート１４に近づいた位置で低速度から高速度への速度
切替え位置をリミットスイッチ４２が検知することにな
る。このことから空気抜き孔入口１３ｃがゲート１４に
近い位置に設けられた嵌合部材７ｃを用いればよい。First, the commonly used Al-Si-C
In the case of using the aluminum alloy of u-type ADC 12 (including sillmin), the limit switch 42 detects the speed switching position from low speed to high speed at the position close to the gate 14 because the solidification of the molten metal 11 is relatively slow. Will be done. Therefore, the fitting member 7c provided with the air vent hole inlet 13c near the gate 14 may be used.
【００３０】次に、近年使用されるようになったＡｌ−
Ｍｇ系ＡＤＣ５やＡＤＣ６（ヒドロナリウム）のアルミ
ニウム合金を用いた場合や純Ａｌを用いたロータ鋳造で
は溶湯金属１１の凝固が早いために射出開始時から比較
的短い時間（ゲート１４から離れた位置）で低速度から
高速度へ切替えを行うこととなり、このことから空気抜
き孔入口１３ｃがゲート１４より離れた位置に設けられ
た嵌合部材７ｃを用いればよい。Next, Al- which has been used recently
In the case of using an aluminum alloy of Mg-based ADC5 or ADC6 (hydronalium) or in rotor casting using pure Al, the solidification of the molten metal 11 is fast, so that it takes a relatively short time from the start of injection (a position away from the gate 14). Since switching from low speed to high speed is performed, the fitting member 7c provided at the position where the air vent hole inlet 13c is separated from the gate 14 may be used.
【００３１】射出スリーブ７内に注湯された溶湯金属１
１がプランジャチップ９の低速度から高速度前進に切替
わり製品キャビティ６に充填する際は、プランジャチッ
プ９が既に空気抜き孔入口１３ｃを塞いでいるために引
続く射出スリーブ内の上部空間１２の空気抜きは困難で
ある（図５）。Molten metal 1 poured into the injection sleeve 7
When 1 moves from low speed forward of the plunger tip 9 to high speed advance and fills the product cavity 6, the plunger tip 9 has already blocked the air vent hole inlet 13c, so that the air vent of the upper space 12 in the injection sleeve continues. Is difficult (Fig. 5).
【００３２】そして、一定時間経過後（タイマにてセッ
ト）、ロッド９ａを図５中左方向に移動させることによ
り排気バルブ４０を閉じ、前記プランジャチップ９を高
速度前進させて射出スリーブ７内の溶湯金属１１をすべ
て製品キャビティ６内に射出する。After a lapse of a certain time (set by a timer), the exhaust valve 40 is closed by moving the rod 9a leftward in FIG. 5, and the plunger tip 9 is advanced at a high speed to move the inside of the injection sleeve 7. All the molten metal 11 is injected into the product cavity 6.
【００３３】その後、製品キャビティ６内に充填された
溶湯金属１１が凝固し終わったら可動金型２６を図１中
左方向に移動させて型を開き、押出ピン３８を押出すこ
とにより成形品（製品）を取出す。以上のような作動を
繰返してダイカスト鋳造がなされる。Thereafter, when the molten metal 11 filled in the product cavity 6 is completely solidified, the movable mold 26 is moved to the left in FIG. 1 to open the mold, and the extrusion pin 38 is extruded to form a molded product ( Product). The above operation is repeated to perform die casting.
【００３４】図７は本発明の実施例に類似した実施例で
あり、射出スリーブ７の内周上面７ａには射出スリーブ
７の軸芯方向に離間して軸芯と直交する方向に開閉装置
５０が複数個（本実施例では３個）配設してある。FIG. 7 shows an embodiment similar to the embodiment of the present invention, in which the opening / closing device 50 is provided on the inner peripheral upper surface 7a of the injection sleeve 7 in the direction orthogonal to the axial center of the injection sleeve 7. A plurality (three in this embodiment) are arranged.
【００３５】この開閉装置５０はシリンダ５２、弁棒５
４および開閉弁５６から構成されている。射出スリーブ
７の外周上面には空気抜き孔１３を形成するための半円
形状のカバー６０が装着されている。The opening / closing device 50 includes a cylinder 52 and a valve rod 5.
4 and an on-off valve 56. A semi-circular cover 60 for forming the air vent hole 13 is mounted on the outer peripheral upper surface of the injection sleeve 7.
【００３６】前記カバー６０上にはシリンダ５２が佇立
してあり、このシリンダ５２から弁棒５４を介して射出
スリーブ７の内周上面７ａに設けられた嵌合部材７ｃ間
で空気抜き孔入口１３ｃを形成している。A cylinder 52 is erected on the cover 60, and an air vent hole inlet 13c is provided between the cylinder 52 and a fitting member 7c provided on the inner peripheral upper surface 7a of the injection sleeve 7 via a valve rod 54. Is forming.
【００３７】前記弁棒５４の周辺には透孔５８が設けら
れ、開閉弁５６を下降させて空気抜き孔入口１３ｃを保
持することによりこの透孔５８から空気抜き孔１３、導
管１５を介して真空ポンプ１６により射出スリーブ内の
上部空間１２の空気を強制排出し減圧するようになって
いる。A through hole 58 is provided in the periphery of the valve rod 54, and the opening / closing valve 56 is lowered to hold the air vent hole inlet 13c so that a vacuum pump is provided from the through hole 58 through the air vent hole 13 and the conduit 15. By means of 16, the air in the upper space 12 inside the injection sleeve is forcibly discharged to reduce the pressure.
【００３８】この各開閉装置５０は図示しないリミット
スイッチと接続され、プランジャチップ９が前進して溶
湯金属１１を製品キャビティ６側へ射出する際に前進す
るプランジャチップ９に近い側の開閉装置５０から次々
と作動させて空気抜き孔入口１３ｃを閉止するように構
成されている。Each of the opening / closing devices 50 is connected to a limit switch (not shown), and when the plunger tip 9 advances to inject the molten metal 11 toward the product cavity 6 side, the opening / closing device 50 on the side close to the plunger tip 9 advances. It is configured to operate one after another to close the air vent hole inlet 13c.
【００３９】図７に示すような構造をしているので、射
出スリーブ７に注湯口１０より溶湯金属１１を所定量注
湯した後、プランジャチップ９を前進させるが例えばゲ
ート１４より離れた位置で低速度から高速度に切替えた
い時は開閉装置５０ａのみ使用し、他の開閉装置５０
ｂ、５０ｃは最初から空気抜き孔入口１３ｃを閉止して
おけばよい。Since the structure shown in FIG. 7 is used, the molten metal 11 is poured into the injection sleeve 7 from the pouring port 10 by a predetermined amount, and then the plunger tip 9 is advanced, but at a position apart from the gate 14, for example. When you want to switch from low speed to high speed, use only the switchgear 50a and other switchgear 50
For b and 50c, the air vent hole inlet 13c may be closed from the beginning.
【００４０】そして、ゲート１４に最も近い位置で低速
度から高速度に切替えたい時は、開閉装置５０ａ、５０
ｂ、５０ｃを全てプランジャチップ９の前進によりリミ
ットスイッチをけって次々と５０ａ→５０ｂ→５０ｃの
順に閉止するようにすれば射出スリーブ内の上部空間１
２の空気を減圧状態下になるまで十分脱気することがで
きる。When it is desired to switch from the low speed to the high speed at the position closest to the gate 14, the opening / closing devices 50a, 50
If the limit switches of b and 50c are all closed by advancing the plunger tip 9 in order of 50a → 50b → 50c, the upper space 1 in the injection sleeve 1
The air of No. 2 can be sufficiently deaerated until the pressure is reduced.
【００４１】[0041]
【発明の効果】以上説明したことからも明らかなよう
に、本発明に係る第１の発明では、型締された金型のキ
ャビティ内へその水平方向から溶湯を鋳込むようにした
水平状射出スリーブの内周上面に断面が逆台形状の凹欠
部を形成し、前記凹欠部に長さの異なる嵌合部材を装着
可能とするとともに、前記嵌合部材内に真空ポンプに通
じる脱気孔を設け、さらに第２の発明では、型締された
金型のキャビティ内へその水平方向から溶湯を鋳込むよ
うにした水平状射出スリーブの内周上面に断面が逆台形
状の凹欠部を形成し、前記凹欠部に長さの異なる嵌合部
材を装着可能とするとともに、前記嵌合部材の軸方向に
離間して真空ポンプに通じる脱気用の開閉装置を配設し
たことにより、溶湯金属の種類や成形品の内・外部の仕
様に応じて低速度から高速度への切替え位置を自由に選
択しながら、射出スリーブ上部の空気抜きを十分行うこ
とができるため、強度、耐圧、肌などの優れた成形品を
容易に成形できる。As is apparent from the above description, in the first invention according to the present invention, horizontal injection is performed so that the molten metal is cast into the cavity of the mold which is clamped from the horizontal direction. A recessed portion having an inverted trapezoidal cross section is formed on the upper surface of the inner periphery of the sleeve, and fitting members having different lengths can be mounted in the recessed portion, and a deaeration hole communicating with a vacuum pump is provided in the fitting member. Further, in the second aspect of the invention, a recessed portion having an inverted trapezoidal cross section is formed on the upper surface of the inner periphery of the horizontal injection sleeve in which the molten metal is cast from the horizontal direction into the cavity of the mold which is clamped. By forming a fitting member having a different length in the recessed portion, and by disposing an opening / closing device for deaeration that is separated in the axial direction of the fitting member and communicates with a vacuum pump, Depending on the type of molten metal and the internal / external specifications of the molded product, low speed While freely select the switch position of the high velocity, since the air vent of the injection sleeve top can be performed sufficiently readily molded strength, breakdown voltage, excellent molded articles such as skin.
【図１】本発明に係る射出スリーブを有したダイカスト
装置の実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of a die casting device having an injection sleeve according to the present invention.
【図２】溶湯金属の注湯完了時の射出スリーブの断面図
である。FIG. 2 is a cross-sectional view of the injection sleeve when the molten metal is completely poured.
【図３】低速度時の射出スリーブ内の空気の流れを示す
説明図である。FIG. 3 is an explanatory diagram showing a flow of air in an injection sleeve at a low speed.
【図４】低速度から高速度へ切替わる直前の射出スリー
ブ内の空気の流れを示す説明図である。FIG. 4 is an explanatory diagram showing the flow of air in the injection sleeve immediately before switching from low speed to high speed.
【図５】高速度時の射出スリーブ内の空気流れを示す説
明図である。FIG. 5 is an explanatory diagram showing an air flow in the injection sleeve at a high speed.
【図６】図２のＡ〜Ａからみた横断面図を示す。FIG. 6 shows a cross-sectional view as seen from AA of FIG.
【図７】本発明に係るダイカスト用射出スリーブの別の
実施例を示す断面図である。FIG. 7 is a sectional view showing another embodiment of the injection sleeve for die casting according to the present invention.
【図８】開閉装置の部分拡大断面図である。FIG. 8 is a partially enlarged sectional view of the opening / closing device.
【図９】従来の射出スリーブを有したダイカスト装置の
縦断面図である。FIG. 9 is a vertical cross-sectional view of a conventional die casting device having an injection sleeve.
６ 製品キャビティ ７ 射出スリーブ ７ａ 内周上面 ７ｂ 凹欠部 ７ｃ 嵌合部材 ９ プランジャチップ １０ 注湯口 １１ 溶湯金属 １２ 射出スリーブ内の上部空間 １３ 空気抜き孔 １３ａ 竪孔 １３ｂ 横孔 １３ｃ 空気抜き孔入口 １３ｄ 空気抜き孔出口 １４ ゲート １５ 導管 １６ 真空ポンプ ２２ 可動プラテン ２６ 可動金型 ２８ 固定プラテン ３０ 固定金型 ３２ ランナ部 ３６ 押出板 ４２ リミットスイッチ ５０（５０ａ、５０ｂ、５０ｃ） 開閉装置 ５２ シリンダ ５４ 弁棒 ５６ 開閉弁 ５８ 透孔 6 Product Cavity 7 Injection Sleeve 7a Inner Upper Surface 7b Recess 7c Fitting Member 9 Plunger Chip 10 Pouring Port 11 Molten Metal 12 Upper Space Inside Injection Sleeve 13 Air Venting Hole 13a Vertical Hole 13b Side Hole 13c Air Venting Hole Inlet 13d Air Venting Hole Outlet 14 Gate 15 Conduit 16 Vacuum pump 22 Movable platen 26 Movable mold 28 Fixed platen 30 Fixed mold 32 Runner part 36 Extrusion plate 42 Limit switch 50 (50a, 50b, 50c) Opening device 52 Cylinder 54 Valve rod 56 Opening valve 58 Through hole
Claims (2)
平方向から溶湯を鋳込むようにした水平状射出スリーブ
の内周上面に断面が逆台形状の凹欠部を形成し、前記凹
欠部に長さの異なる嵌合部材を装着可能とするととも
に、前記嵌合部材内に真空ポンプに通じる脱気孔を設け
たことを特徴とするダイカスト用射出スリーブ。1. A recessed portion having an inverted trapezoidal cross section is formed on an upper surface of an inner periphery of a horizontal injection sleeve in which a molten metal is cast into a cavity of a mold which is clamped from the horizontal direction. An injection sleeve for die casting, characterized in that fitting members having different lengths can be attached to the cutout portions, and deaeration holes communicating with a vacuum pump are provided in the fitting members.
平方向から溶湯を鋳込むようにした水平状射出スリーブ
の内周上面に断面が逆台形状の凹欠部を形成し、前記凹
欠部に長さの異なる嵌合部材を装着可能とするととも
に、前記嵌合部材の軸方向に離間して真空ポンプに通じ
る脱気用の開閉装置を配設したことを特徴とするダイカ
スト用射出スリーブ。2. A recessed portion having an inverted trapezoidal cross section is formed on an upper surface of an inner circumference of a horizontal injection sleeve in which a molten metal is cast from a horizontal direction into a cavity of a mold which is clamped. An injection device for die casting, characterized in that fitting members having different lengths can be attached to the cutout portion, and an opening / closing device for deaeration communicating with the vacuum pump is provided separately in the axial direction of the fitting member. sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23716294A JP2862166B2 (en) | 1994-09-30 | 1994-09-30 | Injection sleeve for die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23716294A JP2862166B2 (en) | 1994-09-30 | 1994-09-30 | Injection sleeve for die casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0899161A true JPH0899161A (en) | 1996-04-16 |
| JP2862166B2 JP2862166B2 (en) | 1999-02-24 |
Family
ID=17011312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23716294A Expired - Fee Related JP2862166B2 (en) | 1994-09-30 | 1994-09-30 | Injection sleeve for die casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2862166B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10144945A1 (en) * | 2001-09-12 | 2003-04-10 | Alcan Bdw Gmbh & Co Kg | Method for controlling a vacuum valve of a vacuum pressure casting device and vacuum pressure casting device |
| EP1900456A1 (en) * | 2006-09-18 | 2008-03-19 | Aluwag Ag | Apparatus for manufacturing molded parts |
| JP2014091159A (en) * | 2012-11-06 | 2014-05-19 | Direct 21 Corp | Die cast degassing device and degassing method |
| CN103817310A (en) * | 2014-01-23 | 2014-05-28 | 姚国志 | Intelligent alloy liquid state squeeze casting molding device |
| WO2014097565A1 (en) * | 2012-12-19 | 2014-06-26 | マツダ株式会社 | Casting apparatus and casting method |
| KR101482072B1 (en) * | 2013-03-11 | 2015-01-13 | 주식회사 세명테크 | Shot sleeve air vent apparatus and method for die-casting system |
| CN109689249A (en) * | 2016-12-13 | 2019-04-26 | 宇部兴产机械株式会社 | The injection device and casting method of casting device |
-
1994
- 1994-09-30 JP JP23716294A patent/JP2862166B2/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10144945A1 (en) * | 2001-09-12 | 2003-04-10 | Alcan Bdw Gmbh & Co Kg | Method for controlling a vacuum valve of a vacuum pressure casting device and vacuum pressure casting device |
| DE10144945B4 (en) * | 2001-09-12 | 2005-05-04 | Alcan Bdw Gmbh & Co. Kg | A method of controlling a vacuum valve of a vacuum die casting apparatus and vacuum die casting apparatus |
| US6948549B2 (en) | 2001-09-12 | 2005-09-27 | Alcan Bdw Gmbh & Co. Kg | Method for controlling a vacuum valve of a vacuum die casting device and a vacuum die casting device |
| EP1900456A1 (en) * | 2006-09-18 | 2008-03-19 | Aluwag Ag | Apparatus for manufacturing molded parts |
| JP2014091159A (en) * | 2012-11-06 | 2014-05-19 | Direct 21 Corp | Die cast degassing device and degassing method |
| WO2014097565A1 (en) * | 2012-12-19 | 2014-06-26 | マツダ株式会社 | Casting apparatus and casting method |
| JP2014117741A (en) * | 2012-12-19 | 2014-06-30 | Mazda Motor Corp | Casting apparatus and casting method |
| CN104884191A (en) * | 2012-12-19 | 2015-09-02 | 马自达汽车株式会社 | Casting apparatus and casting method |
| US9630245B2 (en) | 2012-12-19 | 2017-04-25 | Mazda Motor Corporation | Casting apparatus and casting method |
| DE112013006075B4 (en) * | 2012-12-19 | 2019-09-26 | Mazda Motor Corporation | Casting device and casting process |
| KR101482072B1 (en) * | 2013-03-11 | 2015-01-13 | 주식회사 세명테크 | Shot sleeve air vent apparatus and method for die-casting system |
| CN103817310A (en) * | 2014-01-23 | 2014-05-28 | 姚国志 | Intelligent alloy liquid state squeeze casting molding device |
| CN103817310B (en) * | 2014-01-23 | 2015-12-30 | 姚国志 | A kind of intelligent alloy liquid extrusion casting and forming device |
| CN109689249A (en) * | 2016-12-13 | 2019-04-26 | 宇部兴产机械株式会社 | The injection device and casting method of casting device |
| KR20190094330A (en) * | 2016-12-13 | 2019-08-13 | 우베 고산 기카이 가부시키가이샤 | Injection device and casting method for casting device |
Also Published As
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|---|---|
| JP2862166B2 (en) | 1999-02-24 |
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