JPH066222B2 - Casting sand mold and basin groove and melt-holding ridge forming device for casting sand mold - Google Patents
Casting sand mold and basin groove and melt-holding ridge forming device for casting sand moldInfo
- Publication number
- JPH066222B2 JPH066222B2 JP2145697A JP14569790A JPH066222B2 JP H066222 B2 JPH066222 B2 JP H066222B2 JP 2145697 A JP2145697 A JP 2145697A JP 14569790 A JP14569790 A JP 14569790A JP H066222 B2 JPH066222 B2 JP H066222B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- sand mold
- groove
- sand
- hot water
- 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 - Fee Related
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
【発明の詳細な説明】 Ａ．発明の目的 (1) 産業上の利用分野 本発明は鋳造用砂型、特に、上面に複数の湯口を開口さ
せた鋳造用砂型ならびにその砂型上面において相隣る両
湯口間に湯溜め溝および湯止め畝を形成する装置に関す
る。Detailed Description of the Invention A. OBJECT OF THE INVENTION (1) Industrial field of application The present invention relates to a casting sand mold, and more particularly to a casting sand mold in which a plurality of gates are opened on the upper surface, and a basin groove and a water stopper between two adjacent gates on the sand mold upper surface. It relates to a device for forming a ridge.
(2) 従来の技術 従来、鋳物の量産性を向上させるために、その砂型の造
型法としては、造型サイクルの短い高圧造型法が用いら
れている。(2) Conventional Technology Conventionally, in order to improve the mass productivity of castings, a high-pressure molding method with a short molding cycle has been used as a molding method for the sand mold.
この高圧造型法により多数個取り用の砂型を、鉛直分割
面を持ち、且つ無枠に連続的に造型すると、砂型上面に
は、各キャビティに連通する各湯口が、相隣るもの相互
間を接近させて開口することになる。By this high-pressure molding method, a sand mold for multi-cavity production has a vertical dividing surface and is continuously framelessly molded.When the sand mold upper surface has gates communicating with the respective cavities between adjacent ones. It will be close and open.
(3) 発明が解決しようとする課題 前記のような砂型において、各湯口に１個宛注湯を行う
と、注湯中の湯口から零れた溶湯が前記上面を伝わっ
て、隣に存する未注湯状態の湯口に流入することがあ
り、このような事態が発生した場合には、流入された側
の鋳物に湯境等が発生して、その品質が低下するおそれ
がある。(3) Problem to be Solved by the Invention In the sand mold as described above, when one pouring is performed for each sprue, the molten metal spilled from the spout during pouring travels along the upper surface, and there is unpouring next to it. There is a possibility that it will flow into the molten metal spout, and when such a situation occurs, there is a risk that the molten metal will occur in the casting on the inflowing side and the quality will deteriorate.
本発明は前記のような不具合を解消し得る前記砂型およ
びその解消手段を容易に得ることのできる前記装置を提
供することを目的とする。It is an object of the present invention to provide the sand mold that can solve the above problems and the device that can easily obtain the means for solving the problem.
Ｂ．発明の構成 (1) 課題を解決するための手段 本発明は、上面に複数の湯口を開口させた鋳造用砂型に
おいて、前記上面には、注湯中の湯口から零れた溶湯が
隣の湯口へ流入するのを阻止すべく、その両湯口間を遮
断して前記溶湯を受容する湯溜め溝と、その湯溜め溝の
一側縁に沿って延びて該湯溜め溝からの前記溶湯の溢流
を止める湯止め畝とを設けたことを第１の特徴とする。B. Structure of the Invention (1) Means for Solving the Problems The present invention is a casting sand mold in which a plurality of gates are opened on the upper surface, and the molten metal spilled from the gate during pouring to the adjacent gate on the upper surface. In order to prevent the inflow, a molten metal reservoir groove for blocking the gap between the both gates to receive the molten metal, and an overflow of the molten metal from the molten metal reservoir groove extending along one side edge of the molten metal reservoir groove. The first feature is that a ridge for stopping hot water is provided.
本発明は、複数の湯口を開口させた鋳造用砂型の上面
に、相隣る両湯口間を遮断して、注湯中の前記湯口から
零れた溶湯を流入させる湯溜め溝と、その湯溜め溝の一
側縁に沿う湯止め畝を形成する装置であって、前記砂型
の上面上方に配設された昇降自在の支持部材と、その支
持部材に前記湯溜め溝の長手方向と平行な軸線回りに回
転可能に支持された本体およびその本体に前記軸線方向
に往復動自在に設けられた可動部材を有する第１駆動源
と、その第１駆動原を前記軸線回りに間欠回転させる第
２駆動源と、前記可動部材に設けられて、前記砂型の上
面に前記湯溜め溝を形成すると共にその湯溜め溝の形成
により生じる鋳物砂を前記湯溜め溝の一側縁に沿って盛
上げるサンドカッタと、前記第１駆動源の前記本体に、
前記サンドカッタに対して位相がずれるように設けられ
て、前記鋳物砂を押圧することにより前記湯止め畝を成
形する成形型とを備えていることを第２の特徴とする。The present invention, on the upper surface of a sand mold for casting with a plurality of spouts opened, shuts the gap between the adjoining spouts, and a pouring groove into which the molten metal spilled from the pouring gate is introduced, and the pool A device for forming a tie ridge along one side edge of a groove, comprising a vertically movable support member disposed above the upper surface of the sand mold, and an axis line parallel to the longitudinal direction of the basin groove on the support member. A first drive source having a main body rotatably supported around the main body and a movable member provided on the main body so as to reciprocate in the axial direction, and a second drive for intermittently rotating the first drive source around the axial line. And a sand cutter provided on the movable member to form the molten metal pool groove on the upper surface of the sand mold and to raise molding sand generated by the formation of the molten metal pool groove along one side edge of the molten metal pool groove. And the main body of the first drive source,
A second feature is that it is provided with a phase shift with respect to the sand cutter, and a molding die that presses the molding sand to mold the molten metal retaining ridge.
(2) 作 用 上記第１の特徴によれば、注湯中の湯口から零れた溶湯
が、その隣に存する未注湯状態の湯口へ向かって砂型上
面を流動しようとしても、その溶湯は途中で上記湯溜め
溝内に一旦受容され、更にその湯溜め溝からの溶湯の溢
流が上記湯止め畝で止められるので、上記隣の湯口への
溶湯流入が極めて効果的に阻止される。(2) Operation According to the first feature described above, even if the molten metal spilled from the spout during pouring tries to flow on the upper surface of the sand mold toward the unexposed pouring gate next to it, the molten metal is still on the way. Thus, since the molten metal is once received in the hot water reservoir groove, and the overflow of the molten metal from the hot water reservoir groove is stopped by the hot water ridge, the inflow of the molten metal into the adjoining gate is extremely effectively prevented.
また上記第２の特徴によれば、砂型の上面に湯溜め溝お
よび湯止め畝を能率良く形成することができる。Further, according to the second feature, it is possible to efficiently form the hot water pool groove and the hot water stop ridge on the upper surface of the sand mold.
(3) 実 施 例 第１〜第３図において、多数個取りに用いられる鋳造用
砂型１は、同一形状の複数のユニット型２を互に密着す
るように一列に並べて無枠に構成される。各ユニット型
２は高圧造型法を適用して連続的に造型されたもので、
相隣る両ユニット型２は相対向する鉛直分割面３，４を
有し、両鉛直分割面３，４間に製品成形用キャビティ５
と、そのキャビティ５の上部に連通する湯道６と、その
湯道６に連通すると共に砂型１の上面１ａに開口する湯
口７とが形成される。それら湯口７は、相隣るもの相互
が接近するように配列される。(3) Example In FIGS. 1 to 3, the sand mold 1 for casting, which is used for multi-cavity production, is formed by arranging a plurality of unit dies 2 of the same shape in a line so as to be in close contact with each other without a frame. . Each unit mold 2 is continuously molded by applying a high pressure molding method,
Both unit molds 2 adjacent to each other have vertical dividing surfaces 3 and 4 facing each other, and a cavity 5 for molding a product is formed between the vertical dividing surfaces 3 and 4.
A runner 6 communicating with the upper part of the cavity 5 and a sprue 7 communicating with the runner 6 and opening on the upper surface 1a of the sand mold 1 are formed. The gates 7 are arranged so that adjacent ones approach each other.
砂型１の上面１ａに、相隣る両湯口７間を遮断するよう
に形成された湯溜め溝８と、その湯溜め溝８の一側溝、
図示例では右側縁に沿って延びるように形成された湯止
め畝９とが設けられる。On the upper surface 1a of the sand mold 1, a hot water pool groove 8 formed so as to block between the two adjacent hot water pools 7, and one side groove of the hot water pool groove 8;
In the illustrated example, there is provided a hot water ridge 9 formed so as to extend along the right side edge.
注湯作業に当っては、取鍋１０を、それが湯溜め溝８に
おける湯止め畝９の無い側から湯止め畝９の有る側に向
かうように、図において左側から右側へ移動させて、各
湯口７に１個宛注湯を行う。In the pouring work, the ladle 10 is moved from the left side to the right side in the figure so that it goes from the side without the ridge 9 in the basin 8 to the side with the ridge 9. One pouring is performed for each sprue 7.
この注湯中に湯口７から溶湯ｍが零れ、その零れた溶湯
ｍが上面１ａを伝わって、第１図右隣に存する未注湯状
態の湯口７に向かうことがあるが、この場合には、零れ
た溶湯ｍは湯溜め溝８に流入してそこに受容され、また
湯溜め溝８からの溢流は湯止め畝９により阻止される。During this pouring, the molten metal m spills from the sprue 7, and the spilled molten metal m may travel along the upper surface 1a and go to the unpoured sprue 7 on the right next to FIG. 1. In this case, The spilled molten metal m flows into the pool 8 and is received therein, and the overflow from the pool 8 is blocked by the melt stop ridge 9.
これにより、注湯中の湯口７から零れた溶湯ｍが、その
右隣に存する未注湯状態の湯口７に流入する、といった
不具合を解消することができる。As a result, it is possible to solve the problem that the molten metal m spilled from the spout 7 during pouring flows into the unspouted spout 7 on the right side.
次に、砂型１に対する湯溜め溝８および湯止め畝９の形
成方法について説明する。Next, a method of forming the hot water reservoir groove 8 and the hot water retaining ridge 9 for the sand mold 1 will be described.
第４図は、この方法の実施に用いられる装置を示し、そ
の装置は次のように構成される。FIG. 4 shows an apparatus used for carrying out the method, which apparatus is constructed as follows.
即ち、砂型１の上面１ａ上方において、湯口７の配列方
向、図示例では紙面と直交する方向に延びる一対のガイ
ドロッド１１が図示しない機枠に架設される。両ガイド
ロッド１１に、支持板１２がその一対のガイド筒１３を
介して摺動自在に吊持され、その支持板１２に、それを
摺動させる水平動用作動シリンダ１４のピストンロッド
１５が連結される。That is, above the upper surface 1a of the sand mold 1, a pair of guide rods 11 extending in the arrangement direction of the gates 7, that is, the direction orthogonal to the paper surface in the illustrated example, are installed on a machine frame (not shown). A support plate 12 is slidably suspended by the guide rods 11 through a pair of guide cylinders 13, and a piston rod 15 of a horizontal motion working cylinder 14 for sliding the support plate 12 is connected to the support plates 12. It
支持板１２の上面中央に昇降用作動シリンダ１６がその
軸線を上下方向に向けて立設され、そのピストンロッド
１７は支持板１２の下方に延びている。ピストンロッド
１７下端に、湯口７の配列方向と直交する方向、したが
って湯溜め溝８の長手方向に延びる支持部材としての支
持枠１８が取付けられ、その支持枠１８上面に立設され
た一対のガイドロッド１９が支持板１２の一対のガイド
筒２０に摺動自在に嵌合される。これにより支持枠１８
は昇降自在である。At the center of the upper surface of the support plate 12, an elevating operation cylinder 16 is erected with its axis oriented vertically, and its piston rod 17 extends below the support plate 12. A support frame 18 as a support member is attached to the lower end of the piston rod 17 and extends in a direction orthogonal to the direction of arrangement of the sprues 7, that is, in the longitudinal direction of the sump groove 8, and a pair of guides erected on the upper surface of the support frame 18. The rod 19 is slidably fitted to the pair of guide cylinders 20 of the support plate 12. Thereby, the support frame 18
Can be raised and lowered.
支持枠１８は、その一端と他端近傍に一対の垂下部２
１，２２を有し、それら垂下部２１，２２間に第１駆動
源としてのロツドレスシリンダ２３のシリンダ本体（本
体）２４が、その両端に存する支持軸２５，２６を介し
て回転可能に支持される。これによりシリンダ本体２４
は、湯溜め溝８の長手方向と平行な軸線Ｘ−Ｘ回りに回
転可能である。シリンダ本体２４には、前記軸線Ｘ−Ｘ
方向に往復動する可動部材としてのピストン２７が摺動
自在に設けられている。The support frame 18 includes a pair of hanging parts 2 near one end and the other end thereof.
Cylinder body (body) 24 of a rodless cylinder 23 as a first drive source is rotatably supported between the hanging parts 21 and 22 via supporting shafts 25 and 26 present at both ends thereof. To be done. This allows the cylinder body 24
Is rotatable about an axis XX parallel to the longitudinal direction of the basin groove 8. The cylinder body 24 has the axis line XX.
A piston 27 as a movable member that reciprocates in the direction is slidably provided.
支持枠１８は、その溜端に更に１つの垂下部２８を有
し、その垂下部２８に第２駆動源としてのロータリアク
チュエータ２９が設けられ、そのロータリアクチュエー
タ２９の駆動軸３０はカップリング３１を介してシリン
ダ本体２４の一方の支持軸２６に連結される。これによ
りロッドレスシリンダ２３を前記軸線Ｘ−Ｘ回りに間欠
回転させることができる。The support frame 18 further has one hanging part 28 at its reservoir end, and the hanging part 28 is provided with a rotary actuator 29 as a second drive source. A drive shaft 30 of the rotary actuator 29 has a coupling 31. It is connected to one support shaft 26 of the cylinder body 24 via the. As a result, the rodless cylinder 23 can be intermittently rotated about the axis XX.
ロッドレスシリンダ２３のピストン２７にサンドカッタ
３２が取付けられ、またシリンダ本体２４に、サンドカ
ッタ３２に対して略９０°位相をずらせた成形型３３が
取付けられる。A sand cutter 32 is attached to the piston 27 of the rodless cylinder 23, and a molding die 33 that is out of phase with the sand cutter 32 by about 90 ° is attached to the cylinder body 24.
サンドカッタ３２は、砂型１の上面１ａに湯溜め溝８を
形成すると共にその湯溜め溝８の形成により生じる鋳物
砂を湯溜め溝８の一側溝に沿って盛上げる作用をなす。The sand cutter 32 forms the molten metal reservoir groove 8 on the upper surface 1a of the sand mold 1 and raises the molding sand generated by the formation of the molten metal reservoir groove 8 along one side groove of the molten metal reservoir groove 8.
第５，第６図に示すように、サンドカッタ３２は取付基
板３４と、その下面に取付けられて、湯溜め溝形成方向
ａ前側に存する第１カッタ３５１および湯溜め溝形成方
向ａ後側に存する第２カッタ３５２とよりなり、その取
付基板３４がロッドレスシリンダ２３のピストン２７に
取付けられる。Fifth, as shown in FIG. 6, Sand cutter 32 and the mounting substrate 34, mounted on its lower surface, the hot water reservoir first cutter 35 1 and the hot water reservoir groove formed direction a rear residing in the groove forming direction a front side the second cutter 35 2 and becomes more existing in, the mounting board 34 is attached to the piston 27 of the rodless cylinder 23.
第１カッタ３５１はナイフ形であって、その下縁から湯
溜め溝形成方向ａ前縁にかけて弧状の両刃３６を有す
る。The first cutter 35 1 is a knife-shaped, having an arcuate double-edged 36 toward the direction of formation of the groove a leading edge reservoir water from its lower edge.
第２カッタ３５２は平板形であって、その下縁に、湯溜
め溝形成方向ａの後端ｂから同方向ａの前端ｃに向って
上り勾配に傾斜する両刃３７を有し、ごれにより砂型１
に対する第２カッタ３５２の食込みが良好となる。また
第２カッタ３５２は、湯溜め溝形成方向ａと平行で、且
つ第１カッタ３５１を二等分する直線ｄに対し傾斜して
いる。即ち、両刃３７の湯溜め溝形成方向ａの後端ｂが
略直線ｄ上に位置し、また湯溜め溝形成方向ａの前端ｃ
が直線ｄから離れて位置する。これにより湯溜め溝８の
形成により生じる鋳物砂を湯溜め溝８の一側縁に沿って
盛上げることができる。The second cutter 35 2 is a flat plate-shaped at its lower edge, has a double-edged 37 which slopes upward gradient from the rear end b of the hot water reservoir groove formed direction a toward the front end c in the same direction a, is your By sand mold 1
The second cutter 35 2 inclusive food is good for. The second cutter 35 2, parallel to the hot water reservoir groove formed direction a, is and inclined with respect to a straight line d to the first cutter 35 1 bisecting. That is, the rear end b of the double-sided blade 37 in the pouring groove forming direction a is located on the substantially straight line d, and the front end c in the pouring groove forming direction a is
Is located away from the straight line d. As a result, the foundry sand generated by the formation of the pit 8 can be heaped up along one side edge of the pit 8.
成形型３３は、前記鋳物砂を押圧することによって湯止
め畝９を成形するもので、外方に向って開口するキャビ
ティ３８を有する。The molding die 33 is for molding the melt-preserving ridge 9 by pressing the molding sand, and has a cavity 38 that is open toward the outside.
湯溜め溝８および湯止め畝９の形成前においては、水平
動用作動シリンダ１４、昇降用作動シリンダ１６、ロッ
ドレスシリンダ２３およびロータリアクチュエータ２９
の作動によって、サンドカッタ３２は第４図実線示のよ
うに砂型１の相隣る両湯口７間において、砂型１の上面
１ａ一端部上方に配置される。また成形型３３は、その
キャビティ３８を略上向きにした上方位置にある。Before the formation of the basin groove 8 and the ridge 9 of the molten metal, the horizontal movement operating cylinder 14, the lifting operating cylinder 16, the rodless cylinder 23, and the rotary actuator 29.
As a result, the sand cutter 32 is arranged above one end of the upper surface 1a of the sand mold 1 between the two adjacent sprues 7 of the sand mold 1 as shown by the solid line in FIG. Further, the molding die 33 is at an upper position with the cavity 38 thereof facing substantially upward.
湯溜め溝８等の形成時には、昇降用作動シリンダ１６の
作動によってサンドカッタ３２を下降させ、第１および
第２カッタ３５１，３５２を砂型１の上面１ａに食込ま
せる。この場合、第１カッタ３５１の食込み深さｅ
１は、第５図に示すように刃先部分の長さ程度に設定さ
れ、また第２カッタ３５２の食込み深さｅ２は、第５図
に示すように両刃３７の略半分が埋まる程度に設定され
る。At the time of forming the pouring groove 8, etc., the sand cutter 32 is lowered by the operation of the lifting / lowering operation cylinder 16, and the first and second cutters 35 1 and 35 2 are bite into the upper surface 1 a of the sand mold 1. In this case, the bite depth e of the first cutter 35 1
1 is set to about the length of the cutting edge portion as shown in FIG. 5, also biting depth e 2 of the second cutter 35 2, to the extent that substantially half the both blades 37 are filled as shown in Figure 5 Is set.
次いで、ロッドレスシリンダ２３を作動させて、第４図
鎖線示のようにサンドカッタ３２を砂型１の上面１ａ他
端部に向けて移動させる。この移動で、第１カッタ３５
１により、第７図(a)に示すように細溝３９が形成さ
れ、その形成に伴い生じた鋳物砂ｆは細溝３９の両側に
排除される。また第２カッタ３５２により、第７図(b)
に示すように湯溜め溝８が形成され、その形成に伴い生
じた鋳物砂ｆは、湯溜め溝８の一側縁に沿って盛上げら
れる。この湯溜め溝８において、第１および第２カッタ
３５１，３５２間の距離に応じた短い部分は、平らな上
面１ａに対する第２カッタ３５２の堀込み作用で形成さ
れるが、その外の大部分は細溝３９に対する第２カッタ
３５２の拡張作用で形成される。このような拡張作用を
適用すると、砂型１の硬い上面１ａを小さな砕片に砕き
ながら、湯溜め溝８を形成することができる。Next, the rodless cylinder 23 is operated to move the sand cutter 32 toward the other end of the upper surface 1a of the sand mold 1 as shown by the chain line in FIG. With this movement, the first cutter 35
The 1, narrow grooves 39 as shown in FIG. 7 (a) is formed, molding sand f caused in connection with their formation is eliminated on both sides of the narrow groove 39. Also by the second cutter 35 2, FIG. 7 (b)
As shown in FIG. 3, the hot water pool groove 8 is formed, and the foundry sand f generated by the formation is piled up along one side edge of the hot water pool groove 8. A short portion of the pool 8 corresponding to the distance between the first and second cutters 35 1 and 35 2 is formed by the digging action of the second cutter 35 2 with respect to the flat upper surface 1a. most are formed in the extended action of the second cutter 35 2 for the narrow groove 39. By applying such an expanding action, the molten metal reservoir groove 8 can be formed while crushing the hard upper surface 1a of the sand mold 1 into small pieces.
湯溜め溝８を形成した後、昇降用作動シリンダ１６およ
びロッドレスシリンダ２３を作動させてサンドカッタ３
２を当初の位置に復帰させ、次いで、ロータリアクチュ
エータ２９の作動によりロッドレスシリンダ２３を略１
８０度回転させる。After forming the basin groove 8, the lifting operation cylinder 16 and the rodless cylinder 23 are operated to operate the sand cutter 3
2 is returned to the initial position, and then the rodless cylinder 23 is moved to approximately 1 by the operation of the rotary actuator 29.
Rotate 80 degrees.
これにより成形型３３が盛上げられた鋳物砂ｆの上方へ
配置されるので、昇降用作動シリンダ１６の作動によっ
て成形型３３を下降させ、第７図(c)に示すように鋳物
砂ｆを押圧することによって湯止め畝９を成形する。As a result, since the molding die 33 is arranged above the raised molding sand f, the molding die 33 is lowered by the operation of the lifting operation cylinder 16, and the molding sand f is pressed as shown in FIG. 7 (c). By doing so, the hot water retaining ridge 9 is formed.
湯止め畝９の成形後、昇降用作動シリンダ１６およびロ
ータリアクチュエータ２９の作動によって成形型３３を
当初の位置に復帰させる。After the hot water ridge 9 is formed, the forming die 33 is returned to the initial position by the operation of the lifting operation cylinder 16 and the rotary actuator 29.
このようにして１本の湯溜め溝８と湯止め畝９を形成し
た後、水平動用作動シリンダ１４の作動によってサンド
カッタ３２等を次の両湯口７間に移動させる。In this way, after forming one molten metal pool groove 8 and the molten metal stop ridge 9, the sand cutter 32 and the like are moved between the two sprues 7 by the operation of the horizontal movement operating cylinder 14.
サンドカッタ３２等の位置決めは、高圧造型機における
プランジャの前進位置を検出し、所定のショット数（ユ
ニット型の数）後プランジャのストローク量を積算して
決定する。これにより、鋳物の形状変更に伴う砂型の変
更に容易に対応してサンドカッタ３２等の位置決めを常
に正確に行うことができる。The positioning of the sand cutter 32 and the like is determined by detecting the forward position of the plunger in the high-pressure molding machine and integrating the stroke amount of the plunger after a predetermined number of shots (the number of unit dies). As a result, the sand cutter 32 and the like can be positioned accurately at all times in response to changes in the sand mold that accompany changes in the shape of the casting.
Ｃ．発明の効果 以上のように本発明の第１の特徴によれば、注湯中の湯
口から零れた溶湯が、その隣に存する未注湯状態の湯口
へ流入することを、砂型上面に特設した湯溜め溝及び湯
止め畝の協働によって極めて効果的に阻止することがで
きるので、上記未注湯状態の湯口へ溶湯流入に伴う鋳造
品質の低下を有効に回避することができる。C. EFFECTS OF THE INVENTION As described above, according to the first feature of the present invention, it is specially provided on the upper surface of the sand mold that the molten metal spilled from the spout during pouring flows into the unexposed sprue next to it. Since it is possible to very effectively prevent it by the cooperation of the molten metal pool groove and the molten metal stop ridge, it is possible to effectively avoid the deterioration of the casting quality due to the inflow of the molten metal into the molten metal spout in the unpoured state.
また本発明の第２の特徴によれば、鋳造用砂型の上面
に、前記溶湯流入阻止作用を発揮する湯溜め溝および湯
止め畝を、能率良く形成し得る形成装置を提供すること
ができる。Further, according to the second feature of the present invention, it is possible to provide a forming apparatus capable of efficiently forming the molten metal reservoir groove and the molten metal retaining ridge that exert the molten metal inflow preventing effect on the upper surface of the casting sand mold.
第１〜第３図は本発明に係る鋳造用砂型の一実施例を示
し、第１図は斜視図、第２図は平面図、第３図は第２図
III−III線断面図、第４図は第３図IV矢示方向から見た
形成装置と砂型の関係を示す正面図、第５，第６図はサ
ンドカッタを示し、第５図は正面図、第６図は第５図VI
−VI線断面図、第７図(a)〜(c)は湯溜め溝および湯止め
畝の形成工程説明図である。 ｆ…鋳物砂、ｍ…溶湯、Ｘ−Ｘ…軸線、１…鋳造用砂
型、１ａ…上面、７…湯口、８…湯溜め溝、９…湯止め
畝、１８…支持枠（支持部材）、２３…ロッドレスシリ
ンダ（第１駆動源）、２４…シリンダ本体（本体）、２
７…ピストン（可動部材）、２９…ロータリアクチュエ
ータ（第２駆動源）、３２…サンドカッタ、３３…成形
型1 to 3 show an embodiment of a sand mold for casting according to the present invention. FIG. 1 is a perspective view, FIG. 2 is a plan view, and FIG. 3 is FIG.
III-III sectional view, FIG. 4 is a front view showing the relationship between the forming device and the sand mold as viewed from the direction of arrow IV in FIG. 3, FIGS. 5 and 6 show a sand cutter, and FIG. 5 is a front view. , Fig. 6 is Fig. VI
7A to 7C are cross-sectional views taken along line VI-VI, which are explanatory views of a process of forming the hot water reservoir groove and the hot water retaining ridge. f ... Foundry sand, m ... Molten metal, XX ... Axis line, 1 ... Sand mold for casting, 1a ... Top surface, 7 ... Gate, 8 ... Molten groove, 9 ... Melting ridge, 18 ... Support frame (support member), 23 ... Rodless cylinder (first drive source), 24 ... Cylinder body (body), 2
7 ... Piston (movable member), 29 ... Rotary actuator (second drive source), 32 ... Sand cutter, 33 ... Mold
Claims (2)
せた鋳造用砂型において、前記上面（１ａ）には、注湯
中の湯口（７）から零れた溶湯（ｍ）が隣の湯口（７）
へ流入するのを阻止すべく、その両湯口（７）間を遮断
して前記溶湯（ｍ）を受容する湯溜め溝（８）と、その
湯溜め溝（８）の一側縁に沿って延びて該湯溜め溝
（８）からの前記溶湯（ｍ）の溢流を止める湯止め畝
（９）とを設けたことを特徴とする鋳造用砂型。1. A casting sand mold in which a plurality of gates (7) are opened on the upper surface (1a), the molten metal (m) spilled from the gate (7) during pouring is next to the upper surface (1a). The sprue (7)
Along a side edge of the hot water pool groove (8) for blocking the inflow into the hot water spout (7) and receiving the molten metal (m). A sand mold for casting, characterized in that it is provided with a melt-holding ridge (9) that extends and stops the overflow of the molten metal (m) from the melt-holding groove (8).
（１）の上面（１ａ）に、相隣る両湯口（７）間を遮断
して、注湯中の前記湯口（７）から零れた溶湯（ｍ）を
流入させる湯溜め溝（８）と、その湯溜め溝（８）の一
側縁に沿う湯止め畝（９）を形成する装置であって、前
記砂型（１）の上面（１ａ）上方に配設された昇降自在
の支持部材（１８）と、その支持部材（１８）に前記湯
溜め溝（８）の長手方向と平行な軸線（Ｘ−Ｘ）回りに
回転可能に支持された本体（２４）およびその本体（２
４）に前記軸線（Ｘ−Ｘ）方向に往復動自在に設けられ
た可動部材（２７）を有する第１駆動源（２３）と、そ
の第１駆動原（２３）を前記軸線（Ｘ−Ｘ）回りに間欠
回転させる第２駆動源（２９）と、前記可動部材（２
７）に設けられて、前記砂型（１）の上面（１ａ）に前
記湯溜め溝（８）を形成すると共にその湯溜め溝（８）
の形成により生じる鋳物砂（ｆ）を前記湯溜め溝（８）
の一側縁に沿って盛上げるサンドカッタ（３２）と、前
記第１駆動源（２３）の前記本体（２４）に、前記サン
ドカッタ（３２）に対して位相がずれるように設けられ
て、前記鋳物砂（ｆ）を押圧することにより前記湯止め
畝（９）を成形する成形型（３３）とを備えていること
を特徴とする鋳造用砂型に対する湯溜め溝および湯止め
畝形成装置。2. The top (1a) of a casting sand mold (1) having a plurality of gates (7) opened, with the two gates (7) adjacent to each other being cut off from each other, so that the gate (7) is being poured. ) Is a device for forming a molten metal pool (8) into which molten metal (m) spilled from the molten metal (m) and a molten metal retaining ridge (9) along one side edge of the molten metal pool (8) are formed. ). A vertically movable support member (18) disposed above the upper surface (1a) of the above), and an axis line (XX) parallel to the longitudinal direction of the hot water reservoir groove (8) on the support member (18). A body (24) rotatably supported and the body (2)
4) a first drive source (23) having a movable member (27) provided so as to reciprocate in the direction of the axis (XX) and the first drive source (23), the axis (XX) ) A second drive source (29) for intermittent rotation around the movable member (2)
7), which forms the basin groove (8) on the upper surface (1a) of the sand mold (1) and the basin groove (8)
Foundry sand (f) generated by the formation of the
A sand cutter (32) that rises up along one side edge, and a body (24) of the first drive source (23) that are provided so as to be out of phase with the sand cutter (32), And a mold (33) for molding the melt stop ridge (9) by pressing the molding sand (f).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2145697A JPH066222B2 (en) | 1990-06-04 | 1990-06-04 | Casting sand mold and basin groove and melt-holding ridge forming device for casting sand mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2145697A JPH066222B2 (en) | 1990-06-04 | 1990-06-04 | Casting sand mold and basin groove and melt-holding ridge forming device for casting sand mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0441042A JPH0441042A (en) | 1992-02-12 |
| JPH066222B2 true JPH066222B2 (en) | 1994-01-26 |
Family
ID=15391018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2145697A Expired - Fee Related JPH066222B2 (en) | 1990-06-04 | 1990-06-04 | Casting sand mold and basin groove and melt-holding ridge forming device for casting sand mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066222B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159844A (en) * | 2017-06-29 | 2017-09-15 | 浙江港航重工机械有限公司 | A kind of multichannel apparatus for pouring |
| CN114012038A (en) * | 2021-12-24 | 2022-02-08 | 宜宾普什联动科技有限公司 | Frameless sand pouring basin and manufacturing method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6261341B2 (en) * | 1985-05-02 | 1987-12-21 | Kawasaki Heavy Ind Ltd |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0320028Y2 (en) * | 1985-09-30 | 1991-04-30 |
-
1990
- 1990-06-04 JP JP2145697A patent/JPH066222B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6261341B2 (en) * | 1985-05-02 | 1987-12-21 | Kawasaki Heavy Ind Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0441042A (en) | 1992-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2000084655A (en) | Method for closing flow inlet after non-gravitational casting with non-ferrous alloy of green sand mold in continuous casting plant | |
| CN205732899U (en) | The compression mod of processing top cover | |
| JPH066222B2 (en) | Casting sand mold and basin groove and melt-holding ridge forming device for casting sand mold | |
| US5595236A (en) | Vertical squeeze casting apparatus | |
| EP0976476A1 (en) | Method and apparatus for counter gravity casting of light metals | |
| KR20040100916A (en) | Vertical injection machine using three chambers | |
| US3759313A (en) | R casting nonferrous metal strips method of starting a casting machine having caterpillar type molds fo | |
| CN204934530U (en) | A kind of Stripping pattern machine | |
| JP2000197960A (en) | Casting method and mold for this method | |
| CN212398102U (en) | Novel casting mould casting machine structure | |
| JP5958207B2 (en) | Die casting method | |
| SU629862A3 (en) | Machine for making horizontal stack of flaskless moulds | |
| JPH0242292B2 (en) | ||
| CN104959550A (en) | Mold leaking machine | |
| JPS5913941B2 (en) | Horizontal mold clamping, vertical mold die casting method and equipment | |
| JPH04172162A (en) | Method for exhausting gas in vertical type die casting machine | |
| CN217166364U (en) | Wax mould with adjustable water gap | |
| JP2911323B2 (en) | Method and apparatus for manufacturing metal ingots | |
| JPH06142835A (en) | Flaskless mold | |
| JP5419484B2 (en) | Mold gate cutter | |
| CN212976669U (en) | Die-casting die | |
| JP2571455B2 (en) | Method of preventing air vent clogging of die for vertical die casting machine and structure for preventing clogging | |
| CN108326235B (en) | Multilayer casting mold | |
| JP6534419B2 (en) | Inclined gravity casting method | |
| JPH0216845Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Effective date: 20051220 Free format text: JAPANESE INTERMEDIATE CODE: A971007 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070214 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070411 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20070509 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20070522 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 4 Free format text: PAYMENT UNTIL: 20110615 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 4 Free format text: PAYMENT UNTIL: 20110615 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140615 Year of fee payment: 7 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |