JP2001334350A - Device for molding hollow core - Google Patents
Device for molding hollow coreInfo
- Publication number
- JP2001334350A JP2001334350A JP2000151954A JP2000151954A JP2001334350A JP 2001334350 A JP2001334350 A JP 2001334350A JP 2000151954 A JP2000151954 A JP 2000151954A JP 2000151954 A JP2000151954 A JP 2000151954A JP 2001334350 A JP2001334350 A JP 2001334350A
- Authority
- JP
- Japan
- Prior art keywords
- pin
- hole
- hollow core
- reference hole
- molding
- 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
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Casting Devices For Molds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は中空中子造型装置の
改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a hollow core molding apparatus.
【０００２】[0002]
【従来の技術】中空中子造型装置として、例えば特開平
１０−８５８９７号公報「中空中子の造型方法」が知ら
れている。上記技術は、同公報の図１によれば、開口４
ｂ（符号は公報の符号を流用した）からキャビティ４へ
原料砂９を充填する形式の中子を造型する金型３と、キ
ャビティ４及び開口４ｂを貫通させるべく金型３に縦に
下から挿入したマンドレル５と、このマンドレル５を昇
降させるシリンダ７と、開口４ｂへ原料砂９を充填する
ブローイングマシンとからなる中子を造型する金型３で
あって、ブローイングマシンのブローノズル８にマンド
レル５の先端を支持する貫通穴１２を形成した位置決め
部材１１を備えたものである。2. Description of the Related Art As a hollow core molding apparatus, for example, Japanese Patent Application Laid-Open No. 10-85897, entitled "Method of Molding Hollow Core" is known. The above technique, according to FIG.
b (the reference numeral used in the publication is diverted), a mold 3 for molding a core for filling the raw material 9 into the cavity 4, and a vertically extending mold 3 for penetrating the cavity 4 and the opening 4 b. A mold 3 for molding a core including an inserted mandrel 5, a cylinder 7 for raising and lowering the mandrel 5, and a blowing machine for filling the raw material sand 9 into the opening 4b, and a mandrel is provided to a blow nozzle 8 of the blowing machine. 5 is provided with a positioning member 11 formed with a through hole 12 for supporting the tip of the fifth member.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記金型３で
は、マンドレル５が長くて撓みやすいため、位置決め部
材１１の貫通穴１２に嵌合させる作業を自動化しようと
すると、視覚センサなどの各種センサを用いて位置決め
する必要があり、装置が複雑で高価なものになる。そこ
で、位置決め部材１１の貫通穴１２にマンドレル５を嵌
合させる作業は人手による手作業が有効となる。しか
し、手作業は工数の増加と作業性の低下を招き好ましく
ない。また、ブローノズル８内に位置決め部材１１を取
付けるのでは、原料砂９の充填時に位置決め部材１１の
ブロー圧力が加わり、位置決め部材１１が変形又は破損
する虞れもあり、マンドレル５（センタピン）を金型３
のセンタに位置させるのが困難である。However, in the mold 3, since the mandrel 5 is long and easy to bend, if it is attempted to automate the operation of fitting the mandrel 5 into the through hole 12 of the positioning member 11, various kinds of sensors such as a visual sensor are required. It is necessary to perform positioning by using a device, which makes the device complicated and expensive. Therefore, the work of fitting the mandrel 5 into the through hole 12 of the positioning member 11 is effective by manual work. However, manual work is not preferable because it causes an increase in man-hours and a decrease in workability. Further, since the positioning member 11 is mounted in the blow nozzle 8, the blowing pressure of the positioning member 11 is applied when the raw material sand 9 is filled, and the positioning member 11 may be deformed or damaged. Type 3
It is difficult to locate in the center of
【０００４】そこで、本発明の目的は、生産性の向上を
図ることができ、 センタピンを金型のセンタに容易に
位置設定できる中空中子造型装置を提供することにあ
る。Accordingly, an object of the present invention is to provide a hollow core molding apparatus which can improve productivity and can easily set a center pin at a center of a mold.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に請求項１は、金型の上部開口からキャビティへ鋳砂を
充填する形式の中子造型金型と、キャビティ及び上部開
口を貫通させるべく中子造型金型に縦に下から挿入した
ピンと、このピンを昇降させる昇降手段と、上部開口へ
鋳砂を充填するブローイングマシンとからなる中空中子
造型装置において、ブローイングマシンに、ピンの外径
よりやや大径の基準孔と、この基準孔から拡径する円錐
孔とを鋳砂の流れに沿って設け、且つ基準孔にスプライ
ン溝状の縦溝を設け、上昇動作中のピンの上端を円錐孔
のテーパ作用で基準孔に導き、この基準孔にピンが納っ
た状態で縦溝を通じて鋳砂をキャビティへ充填できるよ
うに構成したことを特徴とする。In order to achieve the above object, a first aspect of the present invention is to provide a core mold for filling a cavity with molding sand from an upper opening of the mold, and to penetrate the cavity and the upper opening. In a hollow core molding apparatus consisting of a pin vertically inserted into the core molding die from below, a lifting means for raising and lowering the pin, and a blowing machine for filling the upper opening with casting sand, A reference hole having a diameter slightly larger than the outer diameter and a conical hole expanding from the reference hole are provided along the flow of the molding sand, and a vertical groove having a spline groove shape is provided in the reference hole, so that the pin during the ascending operation is provided. The upper end is guided to a reference hole by the taper action of a conical hole, and the cavity is filled with molding sand through a vertical groove in a state where a pin is placed in the reference hole.
【０００６】すなわち、ブローイングマシンに、ピンの
外径よりやや大径の基準孔と、この基準孔から拡径する
円錐孔とを鋳砂の流れに沿って設け、且つ基準孔にスプ
ライン溝状の縦溝を設け、上昇動作中のピンの上端を円
錐孔のテーパ作用で基準孔に導き、この基準孔にピンが
納った状態で縦溝を通じて鋳砂をキャビティへ充填でき
るようにする。ブローイングマシンに、ピンの外径より
やや大径の基準孔と、この基準孔から拡径する円錐孔と
を鋳砂の流れに沿って設けることで、中子造型金型に縦
に下からピンを容易に基準孔の略センタへ挿入できる。
基準孔にピンが納った状態で縦溝を通じて鋳砂をキャビ
ティへ充填できるようにすることで、金型内に鋳砂の充
填を容易にできるようにする。That is, a reference hole having a diameter slightly larger than the outer diameter of a pin and a conical hole expanding from the reference hole are provided in the blowing machine along the flow of molding sand, and a spline groove-like shape is formed in the reference hole. A vertical groove is provided, and the upper end of the ascending pin is guided to the reference hole by the taper action of the conical hole, so that the molding sand can be filled into the cavity through the vertical groove while the pin is placed in the reference hole. By providing a reference hole with a diameter slightly larger than the outer diameter of the pin and a conical hole that expands from this reference hole along the flow of the casting sand in the blowing machine, the pin is inserted vertically into the core mold from below. Can be easily inserted into the approximate center of the reference hole.
The molding sand can be easily filled in the mold by allowing the molding sand to be filled into the cavity through the vertical groove with the pin placed in the reference hole.
【０００７】[0007]
【発明の実施の形態】本発明の実施の形態を添付図に基
づいて以下に説明する。なお、図面は符号の向きに見る
ものとする。図１は本発明に係る中空中子造型装置で造
型する中空中子の断面図であり、中空中子１０は、鋳物
の中空部を作るために、主型とは別に一つの鋳型を作り
製作するものである。１１は中空中子１０を定位置に支
持するために、中空中子１０に取付けたキャップ型ケレ
ン、１２は中空中子１０のガス抜きをするためのガス抜
き孔、１３，１４は中空中子１０に同時形成すること
で、中空中子１０を支持するために使用する巾木であ
る。Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is a cross-sectional view of a hollow core formed by a hollow core forming apparatus according to the present invention. In order to form a hollow portion of a casting, a hollow core 10 is manufactured by manufacturing one mold separately from a main die. Is what you do. Numeral 11 denotes a cap-type keren attached to the hollow core 10 to support the hollow core 10 in a fixed position, 12 denotes a gas vent hole for venting the hollow core 10, and 13 and 14 denote hollow cores. This is a baseboard used to support the hollow core 10 by being formed simultaneously with the core 10.
【０００８】図２は本発明に係る中空中子造型装置の断
面図である。中空中子造型装置２０は、鋳砂２１を充填
するための中子造型金型２２と、この中子造型金型２２
に下から挿入するピン２３と、このピン２３を昇降させ
る昇降手段としてのシリンダ２４と、中子造型金型２２
に鋳砂を充填するブローイングマシン２５とから構成す
るものである。FIG. 2 is a sectional view of a hollow core molding apparatus according to the present invention. The hollow core molding apparatus 20 includes a core molding die 22 for filling the casting sand 21 and the core molding die 22.
, A cylinder 24 as an elevating means for elevating the pin 23, and a core mold 22.
And a blowing machine 25 that fills the inside with casting sand.
【０００９】中子造型金型２２は、金型本体３１に上部
開口３２を形成し、この上部開口３２に連続して中空中
子１０（図１参照）を形成するためのキャビティ３３を
形成し、このキャビティ３３を塞ぐために金型本体３１
の下部にピンガイドブッシュ３４を取付け、金型本体３
１に鋳砂２１を固めるためのヒータ３５，３５を埋め込
んだものである。中空中子１０を造型後は、例えば、金
型本体３１を図面左右に型ばらしをして中空中子１０を
取出すようにするものである。In the core molding die 22, an upper opening 32 is formed in the die body 31, and a cavity 33 for forming the hollow core 10 (see FIG. 1) is formed continuously with the upper opening 32. To close the cavity 33,
The pin guide bush 34 is attached to the lower part of the
In FIG. 1, heaters 35 for hardening the molding sand 21 are embedded. After the hollow core 10 is formed, for example, the mold main body 31 is separated right and left in the drawing to take out the hollow core 10.
【００１０】ピン２３は、ピンガイドブッシュ３４にス
ライド可能に取付けることで、中空中子１０（図１参
照）にガス抜き孔１２を形成する部材であり、シリンダ
２４は、ピン２３を昇降させるために中子造型金型２２
の下方に配置し、シリンダ２４のロッド２４ａをピンの
下端２３ｂに結合するものである。The pin 23 is a member that forms the gas vent hole 12 in the hollow core 10 (see FIG. 1) by being slidably mounted on the pin guide bush 34. The cylinder 24 is used to raise and lower the pin 23. Core mold 22
And connects the rod 24a of the cylinder 24 to the lower end 23b of the pin.
【００１１】ブローイングマシン２５は、鋳砂２１を圧
縮空気で中子造型金型２２内に充填するための装置であ
り、ブローイングマシン２５のブローノズル４１は、ピ
ン２３の外径よりやや大径の基準孔４２と、この基準孔
４２から拡径する円錐孔４３とを鋳砂２１の流れに沿っ
て設け、且つ基準孔４２にスプライン溝状の縦溝４４・・
・（・・・は複数個を示す。以下同じ）を設け、上昇動作中
のピン２３の上端２３ａを円錐孔４３のテーパ作用で基
準孔４２に導き、この基準孔４２にピン２３が納った状
態で縦溝４４・・・を通じて鋳砂２１をキャビティ３３へ
充填するものである。The blowing machine 25 is a device for filling the casting mold 21 into the core mold 22 with compressed air. The blow nozzle 41 of the blowing machine 25 has a diameter slightly larger than the outer diameter of the pin 23. A reference hole 42 and a conical hole 43 expanding from the reference hole 42 are provided along the flow of the molding sand 21, and the reference hole 42 has a spline-shaped vertical groove 44.
(... denotes a plurality, hereinafter the same) is provided, and the upper end 23a of the pin 23 during the ascending operation is guided to the reference hole 42 by the taper action of the conical hole 43, and the pin 23 is accommodated in the reference hole 42. In this state, the molding sand 21 is filled into the cavity 33 through the vertical grooves 44.
【００１２】すなわち、中空中子造型装置２０は、金型
の上部開口３２からキャビティ３３へ鋳砂２１を充填す
る形式の中子造型金型２２と、キャビティ３３及び上部
開口３２を貫通させるべく中子造型金型２２に縦に下か
ら挿入したピン２３と、このピン２３を昇降させるシリ
ンダ２４と、上部開口３２へ鋳砂２１を充填するブロー
イングマシン２５とからなる中空中子造型装置２０にお
いて、ブローイングマシン２５に、ピン２３の外径より
やや大径の基準孔４２と、この基準孔４２から拡径する
円錐孔４３とを鋳砂２１の流れに沿って設け、且つ基準
孔４２にスプライン溝状の縦溝４４・・・を設け、上昇動
作中のピン２３の上端２３ａを円錐孔４３のテーパ作用
で基準孔４２に導き、この基準孔４２にピン２３が納っ
た状態で縦溝４４・・・を通じて鋳砂２１をキャビティ３
３へ充填できるように構成したものである。That is, the hollow core molding apparatus 20 includes a core molding die 22 of a type in which the molding sand 21 is filled into the cavity 33 from the upper opening 32 of the die, and a middle mold for penetrating the cavity 33 and the upper opening 32. In a hollow core molding apparatus 20 including a pin 23 vertically inserted into a sub-molding mold 22 from below, a cylinder 24 for raising and lowering the pin 23, and a blowing machine 25 for filling an upper opening 32 with casting sand 21. A reference hole 42 having a diameter slightly larger than the outer diameter of the pin 23 and a conical hole 43 expanding from the reference hole 42 are provided in the blowing machine 25 along the flow of the molding sand 21, and a spline groove is formed in the reference hole 42. Are formed, and the upper end 23a of the pin 23 during the ascending operation is guided to the reference hole 42 by the taper action of the conical hole 43, and the vertical groove 4 is placed in a state where the pin 23 is accommodated in the reference hole 42. The cavity of the molding sand 21 through the ... 3
3 can be filled.
【００１３】図３は図２の３−３線断面図であり、ブロ
ーノズル４１のノズル断面形状を示す。すなわち、図２
に示す中空中子造型装置２０は、ブローイングマシン２
５に、ピン２３の外径よりやや大径の基準孔４２と、こ
の基準孔４２から拡径する円錐孔４３とを鋳砂の流れに
沿って設けたので、中子造型金型２２（図２参照）に縦
に下から中空中子１０（図１参照）のガス抜き孔１２を
形成するためのピン２３を容易に、且つ基準孔４２の略
センタへ挿入することができる。また、基準孔４２にピ
ン２３が納った状態で縦溝４４・・・を通じて鋳砂２１
（図２参照）を充填できるようにしたので、中子造型金
型２２内に鋳砂２１の充填を容易にできると。この結
果、ガス抜き孔１２（図１参照）を、ほぼ中空中子１０
のセンタに形成することができ、中空中子１０の肉厚が
均一で、孔空き等が無い中空中子１０を得ることができ
る。すなわち、鋳造時に溶湯等の進入等を防止できる良
好な中空中子１０を得ることができる。FIG. 3 is a sectional view taken along line 3-3 of FIG. That is, FIG.
The hollow core molding apparatus 20 shown in FIG.
5, a reference hole 42 having a diameter slightly larger than the outer diameter of the pin 23 and a conical hole 43 expanding from the reference hole 42 are provided along the flow of the molding sand. 2), the pin 23 for forming the gas vent hole 12 of the hollow core 10 (see FIG. 1) can be easily and vertically inserted into the substantially center of the reference hole 42 from below. In the state where the pin 23 is accommodated in the reference hole 42,
(See FIG. 2), so that the molding sand 22 can be easily filled with the molding sand 21 in the core mold 22. As a result, the gas vent hole 12 (see FIG. 1) is substantially hollow core 10
The center of the hollow core 10 can be formed, and the thickness of the hollow core 10 is uniform, and the hollow core 10 having no holes or the like can be obtained. That is, it is possible to obtain a good hollow core 10 that can prevent entry of molten metal or the like during casting.
【００１４】以上に述べた中空中子造型装置２０の作用
を次に説明する。図４（ａ）〜（ｃ）は本発明に係る中
空中子造型装置の第１作用説明図である。（ａ）におい
て、ブローイングマシン２５を矢印の如く下降させ、
中子造型金型２２の上部開口３２の上にブローイングマ
シン２５をセットする。（ｂ）において、ブローイング
マシン２５のブローノズル４１に向かってピン２３を矢
印の如く上昇させる。このときに、ブローノズル４１
に、ピン２３の外径よりやや大径の基準孔４２と、この
基準孔４２から拡径する円錐孔４３とを鋳砂の流れに沿
って設けたので、中子造型金型２２に縦に下からピン２
３を容易に基準孔４２の略センタに挿入することができ
る。The operation of the hollow core molding apparatus 20 described above will now be described. 4 (a) to 4 (c) are first operation explanatory diagrams of the hollow core molding apparatus according to the present invention. In (a), the blowing machine 25 is lowered as shown by the arrow,
The blowing machine 25 is set on the upper opening 32 of the core mold 22. In (b), the pin 23 is raised toward the blow nozzle 41 of the blowing machine 25 as shown by the arrow. At this time, the blow nozzle 41
In addition, since a reference hole 42 having a diameter slightly larger than the outer diameter of the pin 23 and a conical hole 43 expanding from the reference hole 42 are provided along the flow of the molding sand, Pin 2 from below
3 can be easily inserted into the approximate center of the reference hole 42.
【００１５】（ｃ）は（ｂ）のｃ矢視図であり、ブロー
ノズル４１の形状の斜視図である。すなわち、基準孔４
２に（ｂ）に示すピン２３が納った状態で縦溝４４・・・
を通じて矢印・・・の如く、鋳砂２１をキャビティ３３
へ充填できるようにしたので、中子造型金型２２内に鋳
砂２１の充填を容易にできる。FIG. 2C is a view taken in the direction of the arrow c in FIG. That is, the reference hole 4
In the state where the pin 23 shown in FIG.
Through the casting sand 21 as indicated by the arrow.
In this case, the molding sand 22 can be easily filled in the core mold 22.
【００１６】図５（ａ）〜（ｃ）は本発明に係る中空中
子造型装置の第２作用説明図である。（ａ）において、
中子造型金型２２のキャビティ３３内に鋳砂２１を矢印
，の如く充填する。（ｂ）において、ブローイング
マシン２５を矢印の如く上昇させる。（ｃ）におい
て、ピン２３を矢印の如く下降させる。FIGS. 5A to 5C are views for explaining a second operation of the hollow core molding apparatus according to the present invention. In (a),
The molding sand 21 is filled in the cavity 33 of the core molding die 22 as shown by arrows. In (b), the blowing machine 25 is raised as shown by the arrow. In (c), the pin 23 is lowered as shown by the arrow.
【００１７】図６（ａ）〜（ｃ）は本発明に係る中空中
子造型装置の第３作用説明図である。（ａ）において、
中子造型金型２２の上部に残った鋳砂２１をスキージ４
７で矢印の如く削除する。（ｂ）において、キャビテ
ィ３３内の鋳砂２１を加熱することで固化させた後にピ
ン２３を矢印の如く中子造型金型２２の下方から抜
く。（ｃ）において、中子造型金型２２を型開きして中
空中子１０を得る。FIGS. 6 (a) to 6 (c) are views for explaining a third operation of the hollow core molding apparatus according to the present invention. In (a),
The squeegee 4 removes the molding sand 21 remaining above the core mold 22.
7 deletes as indicated by the arrow. In (b), after the casting sand 21 in the cavity 33 is solidified by heating, the pin 23 is removed from below the core mold 22 as shown by the arrow. In (c), the core mold 22 is opened to obtain the hollow core 10.
【００１８】尚、実施形態では図４（ａ），（ｂ）で示
したように、ブローイングマシン２５を下降させてから
ピン２３を上昇させたが、この手順に限るものではな
く、ピン２３を上昇させてからブローイングマシン２５
を下降させたものであってもよい。また、実施形態では
図２で示したように、金型本体３１を図面左右に型ばら
しをして中空中子１０を取出すように説明したが、これ
に限るものではなく、型ばらしの方法は任意である。In the embodiment, as shown in FIGS. 4A and 4B, the blowing machine 25 is lowered and then the pins 23 are raised. However, the present invention is not limited to this procedure. Blowing machine 25 after raising
May be lowered. Further, in the embodiment, as shown in FIG. 2, the mold body 31 has been described as being separated from the left and right in the drawing to take out the hollow core 10. However, the present invention is not limited to this. Optional.
【００１９】[0019]
【発明の効果】本発明は上記構成により次の効果を発揮
する。請求項１は、ブローイングマシンに、ピンの外径
よりやや大径の基準孔と、この基準孔から拡径する円錐
孔とを鋳砂の流れに沿って設け、且つ基準孔にスプライ
ン溝状の縦溝を設け、上昇動作中のピンの上端を円錐孔
のテーパ作用で基準孔に導き、この基準孔にピンが納っ
た状態で縦溝を通じて鋳砂をキャビティへ充填できるよ
うに構成した。すなわち、ブローイングマシンに、ピン
の外径よりやや大径の基準孔と、この基準孔から拡径す
る円錐孔とを鋳砂の流れに沿って設けたので、中子造型
金型に縦に下からピンを容易に基準孔の略センタへ挿入
することができる。また、基準孔にピンが納った状態で
縦溝を通じて鋳砂をキャビティへ充填できるようにした
ので、金型内に鋳砂の充填を容易にできる。この結果、
精度のよい中空中子を得ることができると共に造型のた
めの時間を短縮することができ、製造コストの削減を図
ることができる。According to the present invention, the following effects are exhibited by the above configuration. Claim 1 provides a blowing machine with a reference hole having a diameter slightly larger than the outer diameter of the pin and a conical hole expanding from the reference hole along the flow of the molding sand, and a spline groove-like shape is formed in the reference hole. A vertical groove is provided, and the upper end of the ascending pin is guided to the reference hole by the taper action of the conical hole, and the cavity is filled with molding sand through the vertical groove while the pin is placed in the reference hole. That is, since a reference hole having a diameter slightly larger than the outer diameter of the pin and a conical hole expanding from the reference hole are provided along the flow of the molding sand in the blowing machine, the core is vertically lowered into the core molding die. The pin can be easily inserted into the approximate center of the reference hole. In addition, since the molding sand can be filled into the cavity through the vertical groove with the pin placed in the reference hole, the molding sand can be easily filled in the mold. As a result,
An accurate hollow core can be obtained, the time for molding can be shortened, and the manufacturing cost can be reduced.
【図１】本発明に係る中空中子造型装置で造型する中空
中子の断面図FIG. 1 is a cross-sectional view of a hollow core formed by a hollow core forming apparatus according to the present invention.
【図２】本発明に係る中空中子造型装置の断面図FIG. 2 is a sectional view of a hollow core molding apparatus according to the present invention.
【図３】図２の３−３線断面図FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;
【図４】本発明に係る中空中子造型装置の第１作用説明
図FIG. 4 is an explanatory view of a first operation of the hollow core molding apparatus according to the present invention.
【図５】本発明に係る中空中子造型装置の第２作用説明
図FIG. 5 is a second operation explanatory view of the hollow core molding apparatus according to the present invention.
【図６】本発明に係る中空中子造型装置の第３作用説明
図FIG. 6 is a third operation explanatory view of the hollow core molding apparatus according to the present invention.
２０…中空中子造型装置、２１…鋳砂、２２…中子造型
金型、２３…ピン、２３ａ…上端、２４…昇降手段（シ
リンダ）、３２…上部開口、３３…キャビティ、４２…
基準孔、４３…円錐孔、４４…縦溝。Reference numeral 20: hollow core molding apparatus, 21: molding sand, 22: core molding die, 23: pin, 23a: upper end, 24: elevating means (cylinder), 32: upper opening, 33: cavity, 42 ...
Reference hole, 43: conical hole, 44: longitudinal groove.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 磯部 好男 埼玉県狭山市新狭山１丁目10番地１ ホン ダエンジニアリング株式会社内 Ｆターム(参考） 4E093 QB01 QC10 4E094 AA91 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yoshio Isobe 1-10-1 Shinsayama, Sayama City, Saitama Prefecture Honda Engineering Co., Ltd. F term (reference) 4E093 QB01 QC10 4E094 AA91
Claims (1)
充填する形式の中子造型金型と、前記キャビティ及び上
部開口を貫通させるべく中子造型金型に縦に下から挿入
したピンと、このピンを昇降させる昇降手段と、前記上
部開口へ鋳砂を充填するブローイングマシンとからなる
中空中子造型装置において、 前記ブローイングマシンに、前記ピンの外径よりやや大
径の基準孔と、この基準孔から拡径する円錐孔とを鋳砂
の流れに沿って設け、且つ前記基準孔にスプライン溝状
の縦溝を設け、上昇動作中のピンの上端を円錐孔のテー
パ作用で基準孔に導き、この基準孔にピンが納った状態
で前記縦溝を通じて鋳砂をキャビティへ充填できるよう
に構成したことを特徴とする中空中子造型装置。1. A core mold for filling a cavity with molding sand from an upper opening of a mold, a pin vertically inserted into the core mold to penetrate the cavity and the upper opening, In a hollow core molding apparatus comprising a lifting means for raising and lowering the pin and a blowing machine for filling the upper opening with casting sand, the blowing machine has a reference hole having a diameter slightly larger than an outer diameter of the pin, A conical hole expanding from the reference hole is provided along the flow of the casting sand, and a vertical groove in the form of a spline groove is provided in the reference hole, and the upper end of the ascending pin is raised to the reference hole by the taper action of the conical hole. The hollow core molding apparatus is configured so that the cavity is filled with casting sand through the vertical groove while the pin is inserted into the reference hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000151954A JP4375694B2 (en) | 2000-05-23 | 2000-05-23 | Hollow core molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000151954A JP4375694B2 (en) | 2000-05-23 | 2000-05-23 | Hollow core molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001334350A true JP2001334350A (en) | 2001-12-04 |
| JP4375694B2 JP4375694B2 (en) | 2009-12-02 |
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ID=18657438
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000151954A Expired - Fee Related JP4375694B2 (en) | 2000-05-23 | 2000-05-23 | Hollow core molding machine |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102285503B1 (en) * | 2021-04-01 | 2021-08-02 | 이한수 | Sand injection device |
-
2000
- 2000-05-23 JP JP2000151954A patent/JP4375694B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102285503B1 (en) * | 2021-04-01 | 2021-08-02 | 이한수 | Sand injection device |
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| Publication number | Publication date |
|---|---|
| JP4375694B2 (en) | 2009-12-02 |
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