JPH0138589B2 - - Google Patents
Info
- Publication number
- JPH0138589B2 JPH0138589B2 JP12234780A JP12234780A JPH0138589B2 JP H0138589 B2 JPH0138589 B2 JP H0138589B2 JP 12234780 A JP12234780 A JP 12234780A JP 12234780 A JP12234780 A JP 12234780A JP H0138589 B2 JPH0138589 B2 JP H0138589B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- sleeve
- runner
- tip
- counter
- 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 95
- 238000004512 die casting Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 235000015895 biscuits Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Description
【発明の詳細な説明】
＜産業上の利用分野＞
開示技術は、竪型ダイカスト鋳造において、キ
ヤビテイ内への溶湯注入の速度を最適に設定し製
品に湯境の生じるのを防止する技術分野に属す
る。[Detailed Description of the Invention] <Industrial Application Field> The disclosed technology is applied to the technical field of vertical die casting, in which the speed of molten metal injection into the cavity is optimally set to prevent the formation of hot spots in the product. belong to
＜要旨の概要＞
而して、この出願の発明は金型内に内装したス
リーブのうち、上スリーブを固定し、下スリーブ
によつて湯道を開閉するようにし、該スリーブ内
に設けたプランジヤチツプとカウンタチツプとに
よりキヤビテイ内への溶湯の注入を行なうものに
関する発明であり、特に、上記両チツプのうちカ
ウンタチツプの上昇力のみによつて溶湯の注入を
行なう竪型ダイカスト鋳造方法及び竪型ダイカス
ト鋳造装置に係る発明である。<Summary of the gist> The invention of this application fixes the upper sleeve of the sleeves installed in the mold, opens and closes the runner with the lower sleeve, and uses a plunger provided in the sleeve. This invention relates to a method for injecting molten metal into a cavity using a tip and a counter tip, and in particular, a vertical die casting method and a vertical die casting method in which molten metal is injected only by the lifting force of the counter tip of both chips. This invention relates to a die-casting device.
＜従来技術＞
従来、竪型ダイカスト鋳造装置には第１図に示
す様に上型１と下型２内の上下方向に溶湯導入穴
３が設けられ、該溶湯導入穴３内にスリーブ４が
内装され、上型１と下型２の内部に形成されたキ
ヤビテイ５に連絡する湯道６が上記スリーブ４内
に開口している。<Prior art> Conventionally, as shown in FIG. 1, a vertical die-casting apparatus is provided with molten metal introduction holes 3 in the vertical direction in an upper mold 1 and a lower mold 2, and a sleeve 4 is installed in the molten metal introduction holes 3. A runner 6 that is installed inside and communicates with a cavity 5 formed inside the upper mold 1 and the lower mold 2 opens into the sleeve 4.
而して、注湯の際にはシリンダ機構７により上
下動するカウンタチツプ８によつて湯道６を閉鎖
した状態で、上部注湯口９からスリーブ４内に溶
湯ａを充填し、その後カウンタチツプ８を下降さ
せて湯道６を開き、上方位置に設けたシリンダ機
構１０により作動するプランジヤチツプ１１を下
降させてスリーブ４内の溶湯ａをキヤビテイ５内
に注入するようにしている。 When pouring molten metal, the runner 6 is closed by the counter tip 8 that moves up and down by the cylinder mechanism 7, and the sleeve 4 is filled with molten metal a from the upper pouring port 9, and then the counter tip is 8 is lowered to open the runner 6, and a plunger tip 11 operated by a cylinder mechanism 10 provided at an upper position is lowered to inject the molten metal a in the sleeve 4 into the cavity 5.
＜発明が解決しようとする問題点＞
ところが、上述従来態様にあつては、カウンタ
チツプ８の下降量が大きいため、溶湯ａの自由落
下距離が大きくなり、カウンタチツプの下降によ
つて湯道６が開いたときに溶湯ａは湯道６内に勢
いよく流入するので、この溶湯ａはキヤビテイ５
内で飛散し先に固化することとなる。<Problems to be Solved by the Invention> However, in the conventional embodiment described above, since the amount of descent of the counter tip 8 is large, the free fall distance of the molten metal a becomes large, and the descent of the counter tip causes the runner 6 When the molten metal a is opened, the molten metal a flows forcefully into the runner 6, so this molten metal a flows into the cavity 5.
It will scatter inside and solidify first.
よつて、その後プランジヤチツプ１１が下降す
ることにより残りの溶湯ａがキヤビテイ５内に充
填された場合には、先に固化したものと融合せず
に湯境が生じ鋳造欠陥が生じる欠点があつた。 Therefore, when the remaining molten metal a is filled into the cavity 5 by descending the plunger tip 11, it does not fuse with the previously solidified molten metal, forming a molten metal boundary and causing casting defects. .
又、特開昭56―160863号公報に開示されている
様にカウンタチツプ８が下降する際にプランジヤ
チツプ１１を同時に下降させて湯道６が開いた直
後からプランジヤチツプ１１によつてキヤビテイ
５内へ溶湯ａを加圧注入する態様も案出されてい
るが、キヤビテイ５上部の溶湯ａの位置エネルギ
も加わつて溶湯ａがキヤビテイ５内に高圧力にて
噴出しキヤビテイ５内に溶湯ａの一部が飛散して
固化して溶湯内に湯境を生じてしまうという難点
があつた。 Also, as disclosed in Japanese Patent Application Laid-open No. 160863/1986, when the counter tip 8 is lowered, the plunger tip 11 is simultaneously lowered, so that the inside of the cavity 5 is moved by the plunger tip 11 immediately after the runner 6 is opened. A mode has also been devised in which molten metal a is injected under pressure into the cavity, but the potential energy of the molten metal a in the upper part of the cavity 5 is also added, and the molten metal a is ejected into the cavity 5 under high pressure, and a portion of the molten metal a is poured into the cavity 5. The problem was that the parts would scatter and solidify, creating a melting point in the molten metal.
この出願の発明の目的は上述従来技術に基づく
竪型ダイカスト鋳造方法及び竪型ダイカスト鋳造
装置の問題点を解決すべき技術的課題とし、キヤ
ビテイへ一定の速度で溶湯が流入することができ
ることは勿論のこと溶湯の位置エネルギ等により
影響を与えられずに流入する速度を自由に設定で
きるようにして溶湯のキヤビテイ内での飛沫先行
を無くし、湯境のない健全なキヤビテイ製品を得
ることが出来るようにし鋳造産業における溶湯充
填利用分野に益する優れた竪型ダイカスト鋳造方
法及び竪型ダイカスト鋳造装置を提供せんとする
ものである。 The purpose of the invention of this application is to solve the technical problems of the vertical die casting method and vertical die casting apparatus based on the above-mentioned prior art, and of course, it is necessary to solve the problems of the vertical die casting method and the vertical die casting apparatus based on the above-mentioned prior art. By making it possible to freely set the inflow speed without being affected by the potential energy of the molten metal, it is possible to eliminate the splashing of molten metal in the cavity, and to obtain a healthy cavity product with no hot spots. It is an object of the present invention to provide an excellent vertical die casting method and vertical die casting apparatus that are useful in the field of molten metal filling in the casting industry.
＜問題点を解決するための手段・作用＞
上述目的に沿い先述特許請求の範囲を要旨とす
るこの出願の発明の構成は、前述問題点を解決す
るために金型内に摺動自在に設けた可動する下ス
リーブを固定の上スリーブに当接させて湯道を閉
鎖し、この状態にて溶湯注入用カウンタチツプと
導入口閉塞用プランジヤチツプとの間に溶湯を充
填し、該カウンタチツプとプランジヤチツプとを
溶湯を加圧することなく下降させて溶湯湯面が湯
道のわずか上方位置に達した後両者を停止させ下
スリーブを下降させて湯道を開放し、溶湯が湯道
に流入する際に溶湯の自重等でキヤビテイ内に飛
散しないようにし、次に該溶湯注入用カウンタチ
ツプを所定に上昇させることによつて溶湯を注入
するようにした技術的手段を講じたものである。<Means/effects for solving the problem> In accordance with the above-mentioned object, the structure of the invention of this application, which is summarized in the above-mentioned claims, is provided slidably within the mold in order to solve the above-mentioned problem. The movable lower sleeve is brought into contact with the fixed upper sleeve to close the runner, and in this state, molten metal is filled between the molten metal injection counter tip and the inlet closing plunger tip, and the molten metal is filled between the counter tip and the inlet closing plunger tip. The plunger tip is lowered without pressurizing the molten metal until the molten metal surface reaches a position slightly above the runner, then both are stopped and the lower sleeve is lowered to open the runner, allowing the molten metal to flow into the runner. A technical measure is taken to prevent the molten metal from scattering into the cavity due to its own weight, and then to inject the molten metal by raising the molten metal injection counter tip to a predetermined height.
＜実施例―構成＞
次に、この出願の発明の実施例を第２図以下の
図面に従つて説明すれば以下の通りである。<Embodiment - Configuration> Next, an embodiment of the invention of this application will be described below with reference to the drawings from FIG. 2 onwards.
第２図、第３図、及び、第４図はこの出願の発
明による竪型ダイカスト装置を示す縦断面図を溶
湯の注入過程ごとに順次示したものである。 FIGS. 2, 3, and 4 are longitudinal cross-sectional views showing the vertical die-casting apparatus according to the invention of this application, sequentially showing each molten metal injection process.
基台２１上には上型２２と下型２３とが組合さ
れて設置され、該上型２２と下型２３の中央部に
は上下方向に溶湯導入口２４が穿設されその上端
部に斜めに開口する湯口２５が合流して形成され
ている。 An upper mold 22 and a lower mold 23 are installed in combination on a base 21, and a molten metal inlet 24 is vertically bored in the center of the upper mold 22 and lower mold 23, and a molten metal inlet 24 is provided diagonally at the upper end thereof. A sprue 25 opening into the two is formed by merging.
上記上型２２と下型２３の接合部には複数のキ
ヤビテイ２６が形成され湯道２７を介して溶湯導
入穴２４に連絡されている。 A plurality of cavities 26 are formed at the joint between the upper mold 22 and the lower mold 23, and are connected to the molten metal introduction hole 24 via a runner 27.
又、上型２２の溶湯導入穴２４内と前記湯口２
５内には耐熱金属製の上スリーブ２８が固設さ
れ、一方、下型２３内には同じく耐熱金属製の下
スリーブ２９が溶湯導入穴２４内に摺動自在装着
にされている。 Also, the inside of the molten metal introduction hole 24 of the upper mold 22 and the sprue 2
An upper sleeve 28 made of a heat-resistant metal is fixedly installed inside the mold 5, while a lower sleeve 29 also made of a heat-resistant metal is slidably mounted inside the molten metal introduction hole 24 inside the lower mold 23.
上記下スリーブ２９は下端に作動ロツド３０が
固設されて、前記基台２１上に設置したシリンダ
機構３１内のピストンに該作動ロツド３０の下端
が接続されている。 An operating rod 30 is fixedly attached to the lower end of the lower sleeve 29, and the lower end of the operating rod 30 is connected to a piston within a cylinder mechanism 31 installed on the base 21.
一方、下スリーブ２９の上端は前記湯道２７が
溶湯導入穴２４内に開口する部分にて前記上スリ
ーブ２８の下端と接合されており、該湯道２７は
該下スリーブ２９の上部側面によつて閉鎖できる
ようにされている。 On the other hand, the upper end of the lower sleeve 29 is joined to the lower end of the upper sleeve 28 at the part where the runner 27 opens into the molten metal introduction hole 24, and the runner 27 is connected to the upper side of the lower sleeve 29. It is designed so that it can be closed.
又、上記上スリーブ内には導入口閉塞用のプラ
ンジヤチツプ３２が摺動自在に内装されており、
該プランジヤチツプ３２は作動ロツド３３を介し
て上型２２の上方位置に固設されたシリンダ機構
３４のピストンに接続されている。 Furthermore, a plunger tip 32 for closing the inlet is slidably housed inside the upper sleeve.
The plunger tip 32 is connected via an actuating rod 33 to a piston of a cylinder mechanism 34 fixed above the upper mold 22.
一方、下スリーブ２９内には溶湯注入用のカウ
ンタチツプ３５が摺動自在に内装され、作動ロツ
ド３６を介して基台２１の下方位置に固設された
シリンダ機構３７のピストンに接続されている。 On the other hand, a counter tip 35 for pouring molten metal is slidably installed inside the lower sleeve 29, and is connected via an actuating rod 36 to a piston of a cylinder mechanism 37 fixed at a position below the base 21. .
＜実施例―作用＞
上述構成において、竪型ダイカスト鋳造装置に
よる竪型ダイカスト鋳造方法を以下に説明する。<Embodiment - Effect> A vertical die casting method using the vertical die casting apparatus in the above configuration will be described below.
まず、溶湯導入穴２４内への注湯作業を行なう
ときには、第２図に示す様にシリンダ機構３１を
作動させて下スリーブ２９の上端が上スリーブ２
８の下端に当接するようにして湯道２７を閉鎖し
ておく。 First, when pouring molten metal into the molten metal introduction hole 24, the cylinder mechanism 31 is operated as shown in FIG.
The runner 27 is closed so as to come into contact with the lower end of the runner 8.
又、上下各シリンダ機構３４，３７を作動させ
てプランジヤチツプ３２は注湯口２５が溶湯導入
穴２４内に開口する部分の上方位置にセツトし、
一方、カウンタチツプ３５は該注湯口２５の開口
部よりもやや下方位置にセツトしておく。 Further, by operating the upper and lower cylinder mechanisms 34 and 37, the plunger tip 32 is set at a position above the portion where the pouring port 25 opens into the molten metal introduction hole 24,
On the other hand, the counter tip 35 is set at a position slightly below the opening of the pouring spout 25.
この状態にて注湯口２５から上スリーブ２８内
に溶湯ａを充填する。 In this state, the upper sleeve 28 is filled with molten metal a from the pouring port 25.
次に、第３図に示す様に、シリンダ機構３７を
作動させてカウンタチツプ３５を湯道２７よりも
下方位置まで下降させる。 Next, as shown in FIG. 3, the cylinder mechanism 37 is operated to lower the counter tip 35 to a position below the runner 27.
このとき、溶湯ａも上スリーブ２８、及び、下
スリーブ２９内を下降するが、カウンタチツプ３
５が停止した状態では溶湯ａの湯面は湯道２７の
わずか上方位置となるようにする。 At this time, the molten metal a also descends inside the upper sleeve 28 and the lower sleeve 29, but the counter tip 3
When the molten metal 5 is stopped, the level of the molten metal a is slightly above the runner 27.
上述の如く、カウンタチツプ３５を下降させて
停止させる間、プランジヤチツプ３２の下面は溶
湯ａの湯面に接するか、或いは、10〜40mm程度の
わずか上方に位置するようにして下降させて停止
させる。 As mentioned above, while the counter tip 35 is lowered and stopped, the lower surface of the plunger tip 32 is in contact with the surface of the molten metal a, or is positioned slightly above by about 10 to 40 mm, and then lowered and stopped. .
したがつて、このとき溶湯ａにはプランジヤチ
ツプ３２による圧力が作用しない。 Therefore, at this time, no pressure from the plunger tip 32 acts on the molten metal a.
而して、第４図に示す様に、シリンダ機構３７
を作動させて下スリーブ２９を下降させて湯道を
開き、同時に、或いは、わずか後にシリンダ機構
３７によつてカウンタチツプ３５を上昇させる
と、該カウンタチツプ３５の加圧力によつて溶湯
ａはキヤビテイ２６内に注入される。 As shown in FIG. 4, the cylinder mechanism 37
When the lower sleeve 29 is lowered to open the runner, and at the same time or slightly later the counter tip 35 is raised by the cylinder mechanism 37, the pressure of the counter tip 35 causes the molten metal a to flow into the cavity. 26.
このようにして、キヤビテイ２６内に注入され
た溶湯ａはカウンタチツプ３５によつて更に加圧
され、その圧力下において溶湯の凝固が進行す
る。 In this way, the molten metal a injected into the cavity 26 is further pressurized by the counter tip 35, and solidification of the molten metal progresses under this pressure.
上述溶湯ａの注入作業の際には、カウンタチツ
プ３５の上に溶湯ａが一旦停止し、その後に下ス
リーブ２９がわずかに下降して湯道２７が解決さ
れ、その上、溶湯ａの湯面が湯道２７のわずか上
方位置であることから溶湯ａの位置エネルギによ
る加圧力も加わらず溶湯ａは最適に設定されたカ
ウンタチツプ３５の加圧力によつてのみ注入され
るので、溶湯ａは湯道２７内に静かに入し、従つ
てキヤビテイ２６内へ先走り、飛散せず、後にカ
ウンタチツプ３５によつて溶湯を注入したときに
湯境の発生が確実に防止される。 During the above-mentioned pouring operation of the molten metal a, the molten metal a temporarily stops on the counter tip 35, and then the lower sleeve 29 descends slightly to clear the runner 27, and the surface of the molten metal a Since is located slightly above the runner 27, there is no pressure applied by the potential energy of the molten metal a, and the molten metal a is injected only by the pressure of the optimally set counter tip 35. It enters the channel 27 quietly, therefore, it runs ahead into the cavity 26 and does not scatter, and when the molten metal is later injected by the counter tip 35, the generation of a molten metal boundary is reliably prevented.
又、溶湯ａの注入圧力は溶湯の自重も加わらず
湯道２７が開いた以後にカウンタチツプ３５の加
圧力によつてのみ加わるようになるので溶湯ａが
キヤビテイ２６内に注入される速度は終始ほぼ一
定となり、キヤビテイ２６内での溶湯ａの飛散が
防止され、これによつても湯境の発生が阻止され
る。 In addition, the injection pressure of the molten metal a is applied only by the pressing force of the counter tip 35 after the runner 27 is opened without the weight of the molten metal being added, so the speed at which the molten metal a is injected into the cavity 26 is constant from beginning to end. This becomes almost constant, preventing the molten metal a from scattering within the cavity 26, and thereby also preventing the formation of molten metal boundaries.
＜他の実施例＞
尚、この発明の実施態様は上述実施例に限るも
のでないことは勿論であり、例えば、カウンタチ
ツプ、プランジヤチツプの昇降駆動をシリンダ機
構以外のモータ、ギヤ機構によつて構成すること
ができることは勿論である。<Other Embodiments> It goes without saying that the embodiments of the present invention are not limited to the above-mentioned embodiments. For example, the lifting and lowering of the counter tip and plunger tip may be performed using a motor or gear mechanism other than the cylinder mechanism. Of course you can.
＜発明の効果＞
以上、この出願の発明によれば、基本的に溶湯
をキヤビテイに注入する際に設定通りの圧力で注
入できることから従来態様のように溶湯のキヤビ
テイ内への先走りや飛散がなく、湯境による製品
の鋳造欠陥が確実に防止できるという優れた効果
が奏される。<Effects of the Invention> As described above, according to the invention of this application, since the molten metal can basically be injected at the set pressure when injecting into the cavity, there is no advance or scattering of the molten metal into the cavity as in the conventional method. This has the excellent effect of reliably preventing casting defects in products due to hot melting.
又、湯注湯口からスリーブ内に溶湯を充填する
ときには、カウンタチツプを上昇させてこの溶湯
を受け止めるようにしているので、スリーブ内に
入つた溶湯の乱れが少なく、溶湯内への空気の巻
き込み、及び、酸化物の形成巻き込みも少なく、
鋳造欠陥の発生を防止することができるという優
れた効果が奏される。 In addition, when filling the sleeve with molten metal from the pouring spout, the counter tip is raised to catch the molten metal, so there is less turbulence of the molten metal entering the sleeve, and air is not drawn into the molten metal. Also, there is less oxide formation and involvement.
The excellent effect of preventing the occurrence of casting defects is achieved.
更に、スリーブ内の溶湯はプランジヤチツプに
よつて加圧されることなく、静かに下降するの
で、溶湯内の懸濁異物は溶湯の液面に浮上し、下
スリーブの下降によつて溶湯をキヤビテイ内に流
入したときに、懸濁異物はスリーブ内に残り、凝
固完了後にビスケツトとなるため鋳造欠陥の減少
になる等の効果が奏される。 Furthermore, since the molten metal in the sleeve is not pressurized by the plunger tip and descends silently, suspended foreign matter in the molten metal floats to the surface of the molten metal, and as the lower sleeve descends, it traps the molten metal in the cavity. When the suspended foreign matter flows into the sleeve, it remains in the sleeve and becomes a biscuit after solidification, resulting in effects such as a reduction in casting defects.
又、溶湯を注入する際にプランジヤチツプとカ
ウンタチツプとの下降を停止した後、湯道を開放
することにより、湯道開放時に溶湯の先走りや飛
散が防止できる上、上記カウンタチツプを停止し
た際に溶湯湯面が湯道のわずか上方位置にあるた
め、溶湯の自重による加圧力がかかわらず、従つ
て溶湯注入をカウンタチツプの加圧力のみにより
設定通りに行なうことができるという優れた効果
が奏される。 In addition, by opening the runner after stopping the descent of the plunger tip and counter tip when pouring molten metal, it is possible to prevent the molten metal from running ahead or scattering when the runner is opened, and when the counter tip is stopped. Since the molten metal surface is located slightly above the runner, the excellent effect is that the molten metal can be poured according to the setting only by the pressure of the counter tip, regardless of the pressure applied by the molten metal's own weight. be done.
第１図は従来の竪型ダイカスト鋳造装置の縦断
面図、第２図以下はこの出願の発明の実施例を示
すものであり、第２図は溶湯供給時、第３図はカ
ウンタプランジヤの下降時、第４図はキヤビテイ
への注入時を示す竪型ダイカスト鋳造装置の縦断
面図である。
２２…上型、２７…下型、２８…上スリーブ、
２９…下スリーブ、３２…導入口閉塞用プランジ
ヤチツプ、３５…溶湯注入用カウンタチツプ、２
５…注湯口、２６…キヤビテイ、ａ…溶湯、２７
…湯道。
Fig. 1 is a vertical cross-sectional view of a conventional vertical die-casting device, Fig. 2 and the following show embodiments of the invention of this application, Fig. 2 is when molten metal is being supplied, and Fig. 3 is when the counter plunger is lowered. FIG. 4 is a longitudinal cross-sectional view of the vertical die-casting apparatus showing the injection into the cavity. 22... Upper mold, 27... Lower mold, 28... Upper sleeve,
29...Lower sleeve, 32...Plunger tip for closing the inlet port, 35...Counter tip for pouring molten metal, 2
5... Pouring port, 26... Cavity, a... Molten metal, 27
…Yudo.
Claims (1)
対向して設けたプランジヤチツプとカウンタチツ
プとによりスリーブ内から注湯口を経てキヤビテ
イ内に溶湯を注入する竪型ダイカスト鋳造方法に
おいて、前記スリーブのうち湯道よりも上側とな
る上スリーブを固定し、注湯口よりも下側となる
摺動自在な下スリーブを上記スリーブに当接させ
て湯道を閉鎖し、溶湯注入用カウンタチツプを湯
道部よりも上方に位置させると共に導入口閉塞用
プランジヤチツプを上スリーブ上部に開口する注
湯口よりも上方に位置させて該注湯口から上記溶
湯注入用カウンタチツプ上に溶湯を充填し、次に
溶湯注入用カウンタチツプを下降させると共に導
入口閉塞用プランジヤチツプを溶湯上面に接する
か、或いは、近接させた状態で下降させ、該溶湯
注入用カウンタチツプが湯道部よりも下方位置に
下がり溶湯湯面が湯道の上方位置に達した後該プ
ランジヤチツプとカウンタチツプを停止させ、次
いで前記下スリーブを下降させて湯道を開放し、
次に該導入口閉塞用プランジヤチツプをロツクし
た後溶湯注入用カウンタチツプを上昇させてその
上昇力のみによつて溶湯を加圧し湯道からキヤビ
テイ内に注入するようにしたことを特徴とする竪
型ダイカスト鋳造方法。 ２ 金型内にスリーブが垂直方向に嵌装されて、
金型内のキヤビテイに通じる湯道が該スリーブ内
に開口自在にされている竪型ダイカスト鋳造装置
において、前記スリーブは湯道開口部よりも上側
部分に上スリーブが固定されていると共に下スリ
ーブが上記湯道を開閉できるように摺動自在に設
けられ、該上スリーブ内には導入口閉塞用プラン
ジヤチツプが該上スリーブ内面に対して摺動自在
に内装され、下スリーブ内には前記溶湯注入用カ
ウンタチツプが該下スリーブ内面に対して摺動自
在に内装されていることを特徴とする竪型ダイカ
スト鋳造装置。[Scope of Claims] 1. Vertical die casting in which molten metal is injected from inside the sleeve into the cavity through the pouring port by means of a plunger tip and a counter tip that are provided oppositely in a sleeve fitted vertically into the mold. In the casting method, the upper sleeve above the runner is fixed, and the slidable lower sleeve below the spout is brought into contact with the sleeve to close the runner and pour the molten metal. The pouring counter tip is positioned above the runner, and the plunger tip for closing the inlet is positioned above the pouring hole which opens at the upper part of the upper sleeve, and the molten metal is poured from the pouring hole onto the molten metal pouring counter tip. Then, the counter tip for molten metal injection is lowered and the plunger tip for closing the inlet is lowered in contact with or close to the upper surface of the molten metal, so that the counter tip for molten metal injection is lower than the runner. After lowering to the lower position and the molten metal level reaching the upper position of the runner, the plunger tip and the counter tip are stopped, and then the lower sleeve is lowered to open the runner;
Next, after locking the introduction port closing plunger tip, the molten metal injection counter tip is raised and the molten metal is pressurized only by the rising force and is injected from the runner into the cavity. Mold die casting casting method. 2 The sleeve is fitted vertically into the mold,
In a vertical die casting device in which a runner leading to a cavity in the mold is freely openable in the sleeve, the sleeve has an upper sleeve fixed to a portion above the runner opening, and a lower sleeve. The runner is slidably provided to open and close the runner, a plunger tip for closing the inlet is slidably installed inside the upper sleeve, and the molten metal is injected into the lower sleeve. 1. A vertical die-casting apparatus, characterized in that a counter tip is slidably installed inside the lower sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12234780A JPS5747568A (en) | 1980-09-05 | 1980-09-05 | Method and device for vertical die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12234780A JPS5747568A (en) | 1980-09-05 | 1980-09-05 | Method and device for vertical die casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5747568A JPS5747568A (en) | 1982-03-18 |
| JPH0138589B2 true JPH0138589B2 (en) | 1989-08-15 |
Family
ID=14833687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12234780A Granted JPS5747568A (en) | 1980-09-05 | 1980-09-05 | Method and device for vertical die casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5747568A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0679759B2 (en) * | 1985-07-01 | 1994-10-12 | トヨタ自動車株式会社 | Vertical die casting method |
| JP3808167B2 (en) * | 1997-05-01 | 2006-08-09 | Ｙｋｋ株式会社 | Method and apparatus for manufacturing amorphous alloy molded article formed by pressure casting with mold |
-
1980
- 1980-09-05 JP JP12234780A patent/JPS5747568A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5747568A (en) | 1982-03-18 |
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