JPH037062Y2 - - Google Patents
Info
- Publication number
- JPH037062Y2 JPH037062Y2 JP1984044827U JP4482784U JPH037062Y2 JP H037062 Y2 JPH037062 Y2 JP H037062Y2 JP 1984044827 U JP1984044827 U JP 1984044827U JP 4482784 U JP4482784 U JP 4482784U JP H037062 Y2 JPH037062 Y2 JP H037062Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- bore
- engine
- auxiliary
- forming
- 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
- 238000000465 moulding Methods 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、エンジンを鋳造するについて使用す
るボア中子を造型する金型の構造に関するもので
ある。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to the structure of a mold for molding a bore core used in casting an engine.
（従来技術）
一般に、エンジンのシリンダブロツクを鋳造形
成するにつき、そのシリンダボア部を開設するた
めに、ボア中子を使用しているものである。そし
て、特公昭51−10177号に見られるように、この
ボア中子を金型によつて造型する技術が採用され
ている。(Prior Art) Generally, when a cylinder block of an engine is cast, a bore core is used to open the cylinder bore portion. As seen in Japanese Patent Publication No. 51-10177, a technique was adopted in which this bore core was molded using a mold.
しかして、近年エンジンの排気量を変更するに
ついて、基本となるエンジン構造におけるシリン
ダボア径のみを変更することによつて異なつた排
気量のエンジンを得るようにしている。この場合
に、各排気量の異なるエンジンに対するボア中子
は、そのボア径に相当する中子外径が相違するだ
けであつて、その他はまつたく同じである。 In recent years, however, when changing the displacement of an engine, engines with different displacements have been obtained by changing only the cylinder bore diameter in the basic engine structure. In this case, the bore cores for engines with different displacements differ only in the core outer diameter corresponding to the bore diameter, and are otherwise exactly the same.
しかるに、このボア径だけが異なるボア中子を
造型するための金型は、各径に対してそれぞれ別
個に作成している。よつて、造型金型の製作費が
多大となるとともに、金型数が多くてその保管場
所が広く必要で、かつ、異なるボア径の中子を造
型する毎に造型金型全体を交換しなければ成らず
その作業が煩雑となる問題を有している。 However, molds for molding bore cores that differ only in bore diameter are made separately for each diameter. Therefore, the manufacturing cost of the molds is large, the large number of molds requires a large storage space, and the entire mold must be replaced every time cores with different bore diameters are molded. However, there is a problem in that the work becomes complicated.
（考案の目的）
本考案は上記事情に鑑み、ボア径だけが相違す
るエンジン用のボア中子を造型する金型を共通化
し、１つの造型金型の一部の部材を交換するだけ
でボア径の異なるボア中子が造型できるようにし
たエンジン用ボア中子の造型金型を提供すること
を目的とするものである。(Purpose of the invention) In view of the above-mentioned circumstances, the present invention uses a common mold for molding bore cores for engines that differ only in bore diameter. It is an object of the present invention to provide a mold for forming a bore core for an engine, which is capable of molding bore cores having different diameters.
（考案の構成）
本考案のボア中子の造型金型は、金型本体と該
金型本体に択一的に内装されて上記エンジン用ボ
ア中子のシリンダボア部外径を形成するボア径の
異なる複数の筒状の補助金型とから構成され、上
記補助金型の同一外径の外面には係合用リブが設
けられる一方、前記金型本体には該係合用リブと
嵌合して上記補助金型を脱着交換可能に位置決め
保持する係合溝が設けられている。(Structure of the invention) The mold for making a bore core of the present invention includes a mold body and a bore diameter which is optionally installed inside the mold body and forms the outer diameter of the cylinder bore part of the bore core for an engine. It is composed of a plurality of different cylindrical auxiliary molds, and an engaging rib is provided on the outer surface of the auxiliary mold with the same outer diameter, and the above-mentioned auxiliary mold is fitted with the engaging rib on the mold body. An engagement groove is provided for positioning and holding the auxiliary mold in a detachable and replaceable manner.
（考案の効果）
本考案によれば、ボア径のみが異なるボア中子
を造型するについては、金型本体内の補助金型を
所定のボア径に対応する補助金型に脱着交換する
だけで対応でき、金型本体の共通化を図つてボア
径の異なる補助金型を複数種類形成するだけでよ
く、造型金型作成費用が大幅に削減できるととも
に、金型数が低減することからその保管管理場所
が狭くでき、しかも、造型作業におけるボア径の
変更時の金型全体の交換が不要でその作業が容易
となり、造型金型の可動率が向上できるものであ
る。また、補助金型の外面に金型本体の係合溝と
嵌合する係合用リブを設けたことにより、補助金
型の位置決めを行うことができ交換作業を容易に
するとともに、補助金型の補強を行うことができ
るものである。(Effects of the invention) According to the invention, in order to mold bore cores that differ only in bore diameter, all that is required is to remove and replace the auxiliary mold in the mold body with the auxiliary mold corresponding to the predetermined bore diameter. It is only necessary to create multiple types of auxiliary molds with different bore diameters by standardizing the mold body, which can significantly reduce the cost of creating molds, and because the number of molds is reduced, it is easier to store them. The management space can be reduced, and the mold does not need to be replaced as a whole when changing the bore diameter during molding work, making the work easier and improving the movability of the mold. In addition, by providing an engagement rib on the outer surface of the auxiliary mold that fits into the engagement groove of the mold body, the auxiliary mold can be positioned, making replacement work easier, and the auxiliary mold can be easily replaced. It is something that can be reinforced.
（実施例）
以下、図面により本考案の実施例を説明する。
第１図は造型金型の横断面図で、第２図は第１図
における補助金型の半割りの一方を示す斜視図、
第３図Ａ，Ｂはボア径の異なる補助金型の半割り
の一方を示す斜視図である。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view of the mold, and FIG. 2 is a perspective view of one half of the auxiliary mold in FIG.
3A and 3B are perspective views showing one half of the auxiliary mold having different bore diameters.
造型金型１は中央で左右に２分割された半割り
構造に設けられ、左右の金型本体２，２とこの金
型本体２，２に脱着交換可能に内装された左右の
補助金型３，３とによつて構成されている。 The molding die 1 is provided in a half-split structure divided into left and right halves at the center, with left and right mold bodies 2, 2 and left and right auxiliary molds 3 installed inside the mold bodies 2, 2 so as to be detachable and replaceable. , 3.
上記造型金型１内に形成されるキヤビテイ４は
エンジン用ボア中子の外形に相当するものであつ
て、上部に筒状のシリンダボア部４ａを備えてい
る。前記補助金型３，３はこのボア中子のシリン
ダボア部４ａの外径形成用に筒状に形成され、そ
の内径ｒがボア中子のシリンダボア部４ａの外径
すなわちエンジンシリンダのボア径に該当する寸
法に形成されている。 The cavity 4 formed in the above-mentioned molding die 1 corresponds to the outer shape of a bore core for an engine, and has a cylindrical cylinder bore portion 4a at its upper portion. The auxiliary molds 3, 3 are formed into a cylindrical shape for forming the outer diameter of the cylinder bore part 4a of the bore core, and the inner diameter r thereof corresponds to the outer diameter of the cylinder bore part 4a of the bore core, that is, the bore diameter of the engine cylinder. It is formed to the dimensions.
上記補助金型３は第２図に示すように、所定の
ボア径ｒを有する筒部３ａの外周に環形突起状に
複数の係合用リブ３ｂが設けられ、この係合用リ
ブ３ｂは金型本体２，２に環状に形成された複数
の周回状の係合溝２ａにそれぞれ脱着自在に係合
可能である。また、この係合用リブ３ｂは、係合
溝２ａとの係合により補助金型３の位置決めを行
うとともに、補助金型３を補強し保管時等の変形
を阻止する。 As shown in FIG. 2, the auxiliary mold 3 is provided with a plurality of engaging ribs 3b in the shape of annular projections on the outer periphery of a cylindrical portion 3a having a predetermined bore diameter r. It can be detachably engaged with a plurality of circumferential engagement grooves 2a formed annularly in 2, 2, respectively. Further, the engagement rib 3b positions the auxiliary mold 3 by engaging with the engagement groove 2a, and also reinforces the auxiliary mold 3 to prevent deformation during storage.
上記補助金型３は、ボア径ｒの異なる複数種類
のものが形成されている。そして、ボア径が異な
るボア中子を造型する場合に、上記金型本体２，
２に装着している補助金型３，３を離脱して、第
３図Ａ，Ｂに示すようなボア径ｒ（内径）が異な
る補助金型３′もしくは３″に交換して造型を行う
ものである。 A plurality of types of auxiliary molds 3 are formed with different bore diameters r. When molding bore cores with different bore diameters, the mold body 2,
Remove the auxiliary molds 3 and 3 attached to 2 and replace them with auxiliary molds 3' or 3'' having a different bore diameter r (inner diameter) as shown in Fig. 3 A and B to perform molding. It is something.
すなわち、第３図Ａに示す補助金型３′は、第
２図に示す補助金型３よりボア径r1が大きく、排
気量の大きいエンジン用のものであつて、筒部３
ａの外径Ｒの大きさおよび係合用リブ３ｂの形状
は同一に形成され、第１図と同様に金型本体２，
２に対してその係合溝２ａに係合用リブ３ｂを係
合した状態で保持される。また、第３図Ｂに示す
補助金型３″は、第２図に示す補助金型３よりボ
ア径r2が小さく、排気量の小さいエンジン用のも
のであつて、筒部３ａの外径Ｒの大きさおよび係
合用リブ３ｂの形状は同一に形成され、同様に金
型本体２，２に保持される。 That is, the auxiliary mold 3' shown in FIG. 3A has a larger bore diameter r1 than the auxiliary mold 3 shown in FIG.
The size of the outer diameter R of a and the shape of the engaging rib 3b are formed the same, and the mold body 2,
2 with the engagement rib 3b engaged with the engagement groove 2a. The auxiliary mold 3'' shown in FIG. 3B has a smaller bore diameter r2 than the auxiliary mold 3 shown in FIG. The size of R and the shape of the engaging rib 3b are formed to be the same, and are similarly held in the mold bodies 2, 2.
上記の如き構造によれば、金型本体２，２と補
助金型３，３とで形成される造型金型１内のキヤ
ビテイ４に造型用砂を供給し、ボア中子の造型を
順次行うものである。ここで、エンジンの排気量
のみ相違したエンジン鋳造用にボア径が異なるボ
ア中子を形成する場合は、金型本体２，２から補
助金型３，３を取り外して、所定のボア径ｒを有
する補助金型３′もしくは３″を装着した後、前記
と同様に造型を行うものである。 According to the above structure, molding sand is supplied to the cavity 4 in the molding mold 1 formed by the mold main bodies 2, 2 and the auxiliary molds 3, 3, and the bore cores are sequentially molded. It is something. Here, when forming bore cores with different bore diameters for engine casting with different engine displacements, remove the auxiliary molds 3, 3 from the mold bodies 2, 2, and set the predetermined bore diameter r. After installing the auxiliary mold 3' or 3'', molding is performed in the same manner as described above.
なお、上記金型本体２，２の係合溝２ａの設置
数、形状等は必要に応じて設計変更可能であり、
これに応じて補助金型３，３の係合用リブ３ａも
設計変更するものである。 Note that the number, shape, etc. of the engagement grooves 2a of the mold bodies 2, 2 can be changed as necessary.
Accordingly, the design of the engaging ribs 3a of the auxiliary molds 3, 3 is also changed.
第１図は本考案の一実施例におけるエンジン用
ボア中子の造型金型の横断面図、第２図は第１図
における補助金型の半割りの一方を示す斜視図、
第３図Ａ，Ｂはボア径の異なる補助金型の半割り
の一方を示す斜視図である。
１……造型金型、２……金型本体、２ａ……係
合溝、３，３′，３″……補助金型、３ａ……筒
部、３ｂ……係合用リブ、４……キヤビテイ、４
ａ……シリンダボア部、ｒ，r1，r2……ボア径。
FIG. 1 is a cross-sectional view of a mold for forming a bore core for an engine according to an embodiment of the present invention, and FIG. 2 is a perspective view showing one half of the auxiliary mold in FIG.
3A and 3B are perspective views showing one half of the auxiliary mold having different bore diameters. 1... Molding die, 2... Mold body, 2a... Engaging groove, 3, 3', 3''... Auxiliary mold, 3a... Cylindrical portion, 3b... Engaging rib, 4... Cavity, 4
a...Cylinder bore part, r, r1 , r2 ...Bore diameter.
Claims (1)
ンジン用ボア中子の造型金型であつて、該造型金
型が金型本体と、該金型本体に択一的に内装され
て前記エンジン用ボア中子のシリンダボア部外径
を形成するボア径の異なる複数の筒状の補助金型
とから構成され、上記補助金型の同一外径の外面
には係合用リブが設けられる一方、前記金型本体
には該係合用リブと嵌合して上記補助金型を脱着
交換可能に位置決め保持する係合溝が設けられて
いることを特徴とするエンジン用ボア中子の造型
金型。 A mold for forming a bore core for an engine for opening a cylinder bore portion of an engine, the mold for forming a bore core for an engine, the mold for forming a bore core for an engine, the mold for forming a bore core for an engine, the mold for forming a bore core for an engine; It is composed of a plurality of cylindrical auxiliary molds having different bore diameters that form the outer diameter of the cylinder bore part, and an engaging rib is provided on the outer surface of the auxiliary molds with the same outer diameter, while the mold body is provided with an engaging rib. A mold for forming a bore core for an engine, characterized in that an engagement groove is provided which engages with the engagement rib to position and hold the auxiliary mold in a detachable and replaceable manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4482784U JPS60157044U (en) | 1984-03-28 | 1984-03-28 | Molding mold for engine bore core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4482784U JPS60157044U (en) | 1984-03-28 | 1984-03-28 | Molding mold for engine bore core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60157044U JPS60157044U (en) | 1985-10-19 |
| JPH037062Y2 true JPH037062Y2 (en) | 1991-02-21 |
Family
ID=30557756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4482784U Granted JPS60157044U (en) | 1984-03-28 | 1984-03-28 | Molding mold for engine bore core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60157044U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5319127Y2 (en) * | 1974-12-28 | 1978-05-22 |
-
1984
- 1984-03-28 JP JP4482784U patent/JPS60157044U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60157044U (en) | 1985-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1545811A1 (en) | Casting procedure, particularly for engine cylinder head | |
| US20060118076A1 (en) | Piston for a combustion engine and casting method for the production thereof | |
| JPH01299739A (en) | Cylinder sleeve form pattern with port and manufacture thereof | |
| EP0092690A1 (en) | Molding core for casting engine cylinder block | |
| JPH037062Y2 (en) | ||
| JPH07232237A (en) | Die for piston | |
| US2820267A (en) | Cylinder head coring | |
| US5201811A (en) | Method and apparatus for the manufacture of unitary complex cores | |
| JP4086985B2 (en) | Multi-cylinder internal combustion engine cylinder | |
| US7165597B2 (en) | Insert core and method for manufacturing a cylinder for internal combustion engine by making use of the insert core | |
| JP2555632B2 (en) | Casting core and manufacturing method thereof | |
| JP4987305B2 (en) | Injection mold | |
| JPS6425110U (en) | ||
| US2768414A (en) | Flask and mold for v-6 cylinder block | |
| JPS61144237A (en) | Casting method using consumable pattern | |
| JP2601113Y2 (en) | Core for piston casting | |
| JPH0250809A (en) | Die member for molding dissipation foamed material mold | |
| JPH0750036Y2 (en) | Composite core for port molding | |
| JPH11114663A (en) | Production of cast product having guide hole | |
| JPS6329164Y2 (en) | ||
| JPH07314089A (en) | Manufacture of completed core and its partial core | |
| JPH01224159A (en) | Manufacture of piston for internal combustion engine | |
| JP3394345B2 (en) | Casting mold | |
| JP2562627Y2 (en) | Cylinder block structure | |
| JPH0542329B2 (en) |