JPH04200967A - Die structure of wheel for vehicle - Google Patents
Die structure of wheel for vehicleInfo
- Publication number
- JPH04200967A JPH04200967A JP33647490A JP33647490A JPH04200967A JP H04200967 A JPH04200967 A JP H04200967A JP 33647490 A JP33647490 A JP 33647490A JP 33647490 A JP33647490 A JP 33647490A JP H04200967 A JPH04200967 A JP H04200967A
- Authority
- JP
- Japan
- Prior art keywords
- die
- mold
- wheel
- vehicle
- hole opening
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 12
- 238000005266 casting Methods 0.000 abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、エア等のガス圧を利用して溶湯を注入する低
圧鋳造により車両用ホイールを成形する鋳型構造に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a mold structure for forming vehicle wheels by low-pressure casting in which molten metal is injected using gas pressure such as air.
（従来の技術）
従来、この種の鋳型として、特開平２−４１７５［ｉ号
公報により、車両用ホイールのディスク部の取付孔開設
部に合致する第１成形面を有する第１型と、車両用ホイ
ールのディスク部の前記取付孔開設部の外方部分に合致
する第２成形面を有する第２型とを備え、該第１型のホ
イールの中心に合致する部分に押し湯用の凹部を形成し
て成るものは知られる。(Prior art) Conventionally, as a mold of this kind, according to Japanese Patent Application Laid-Open No. 2-4175 [i], a first mold having a first molding surface that matches the mounting hole opening of a disc portion of a vehicle wheel; a second mold having a second molding surface that matches the outer part of the mounting hole opening part of the disc part of the wheel, and a recess for the riser in a part that matches the center of the first mold wheel. What is formed is known.
（発明か解決しようとする課題）
上記した従来のものでは、第１成形面を有する第１型に
押し湯用の凹部を形成するため、押し湯の熱が第１型を
介して第１成形面に伝達され易く、ホイールのディスク
部の取付孔開設部の冷却が遅れ勝ちとなって剛性が低下
する。(Problems to be Solved by the Invention) In the above-mentioned conventional device, since a recess for the riser is formed in the first mold having the first molding surface, the heat of the riser passes through the first mold to the first mold. This tends to be transmitted to the surface of the wheel, and the cooling of the mounting hole portion of the wheel disc portion tends to be delayed, resulting in a decrease in rigidity.
本発明の目的は、ディスク部の取イ」孔開設部の剛性を
高めたホイールを成形できる鋳型構造を提供することに
ある。SUMMARY OF THE INVENTION An object of the present invention is to provide a mold structure capable of molding a wheel in which the rigidity of the hole opening portion of the disk portion is increased.
（課題を解決するための手段）
上記１」的を達成すべく、請求項１の発明では、車両用
ホイールのディスク部の取（＝Ｉ孔孔開設−合致する第
１成形而を有する第１型と、車両用ホイールのディスク
部の前記取（＝Ｉ孔孔開設−外方部分に合致する第２成
形面を有する第２型とを備える上型であって、前記第１
型のホイールの中心に合致する部分に押し湯用の凹部を
形成するものにおいて、前記第１型を、前記第１成形面
を形成した下側型と、該下側型内に嵌合され前記凹部を
形成した上側型とに分割すると共に、該上側型の外周と
該下側型との間に空隙を設けた。(Means for Solving the Problems) In order to achieve the above object 1, the invention of claim 1 provides a method for forming a disc part of a vehicle wheel (= I hole opening - a first molding having a matching first forming part). An upper mold comprising: a mold; and a second mold having a second molding surface that matches the hole opening-outward portion of the disc portion of a vehicle wheel, the upper mold comprising:
A recess for a riser is formed in a portion of the mold that coincides with the center of the wheel of the mold, and the first mold is connected to a lower mold on which the first molding surface is formed, and a mold that is fitted into the lower mold and that is fitted into the lower mold. The mold was divided into an upper mold having a concave portion formed therein, and a gap was provided between the outer periphery of the upper mold and the lower mold.
（作 用）
」−型の第１型を、第１成形面を形成した下側型と押し
湯用の凹部を形成した上側型とに分割して、上側型の外
周と下側型との間に空隙を設けるため、押し湯の熱が上
側型を介して下側型の第１成形面に伝達されるのが阻止
され、ホイールのディスク部の取付孔開設部が速やかに
冷却されてその剛性が高められ、また上側型からの下側
型への伝熱が阻止されて押し湯の凝固が遅くなり、効果
的な押し湯作用を得られる。(Function) - The first mold is divided into a lower mold in which the first molding surface is formed and an upper mold in which a recess for the riser is formed, and the outer periphery of the upper mold and the lower mold are separated. By providing a gap between them, the heat of the riser is prevented from being transmitted to the first molding surface of the lower mold through the upper mold, and the mounting hole opening part of the disc part of the wheel is quickly cooled and its Stiffness is increased and heat transfer from the upper mold to the lower mold is inhibited, slowing down the solidification of the riser and providing effective riser action.
上型の第２型に冷却手段を配設する場合、押し湯用の凹
部を形成した」二側型の外周が下側型に密着していると
、冷却手段により第２型を冷却したとき下側型及び上側
型を介して押し湯が冷却され、押し湯の凝固が早くなっ
て充分な押し湯作用を得られなくなるため冷却手段を第
２型の径方向外方の部分に配置せざるを得なくなる。When a cooling means is provided in the second mold of the upper mold, if the outer periphery of the second mold with a recess for the riser is in close contact with the lower mold, when the second mold is cooled by the cooling means. The riser is cooled through the lower mold and the upper mold, and the riser solidifies quickly, making it impossible to obtain a sufficient boiling action, so the cooling means must be placed in the radially outer portion of the second mold. You won't get any more.
しかし、上記の如く上側型の外周と下側型との間に空隙
を設けることで第２型を冷却した際下側型を介して上側
型が冷却されるのを阻止で ・きるため、第２型の
下側型の近傍部分に冷却手段を配設することが可能にな
り、ホイールのディスク部の取付孔開設部が速やかに冷
却されるようになってその剛性を一層高められる。However, by providing a gap between the outer periphery of the upper mold and the lower mold as described above, it is possible to prevent the upper mold from being cooled through the lower mold when the second mold is cooled. It becomes possible to arrange a cooling means in the vicinity of the lower mold of the second type, and the mounting hole opening portion of the disk portion of the wheel is quickly cooled, thereby further increasing its rigidity.
（実施例）
図面で（１）は車両用ホイールを成形する鋳型を示し、
該鋳型（１）は昇降自在の上型（２）と、下型（３）と
、水平方向に摺動自在な複数の摺動型（４）とで構成さ
れ、該下型（３）の外周の湯口ブロック （５）に鋳型
（１）内のキャビティに連なる湯口 （６）を形成し
、該下型 （３）を載置するダイプレー１− （７）
の下側にアルミ溶湯保持炉（８）を設けて、該保持炉（
８）の溶湯内に下端を挿入した供給管（９）の上側の分
岐管（９ａ）を前記湯口（６）に接続し、該保持炉（８
）内にエア圧を加えてアルミ溶湯を押し上げ供給管 り
９）を介して鋳型 （１）内に注入するようにした。(Example) In the drawing, (1) shows a mold for forming a vehicle wheel,
The mold (1) is composed of an upper mold (2) that can be raised and lowered, a lower mold (3), and a plurality of sliding molds (4) that can be slid horizontally. A sprue (6) connected to the cavity in the mold (1) is formed in the sprue block (5) on the outer periphery, and the die plate 1- (7) on which the lower mold (3) is placed.
A molten aluminum holding furnace (8) is provided below the holding furnace (8).
The upper branch pipe (9a) of the supply pipe (9), whose lower end is inserted into the molten metal of the holding furnace (8), is connected to the sprue (6).
) by applying air pressure to push up the molten aluminum and inject it into the mold (1) through the supply pipe (9).
前記上型（２）は車両用ホイールのディスク部の取付孔
開設部に合致する第１成形面（１，０ａ）を有する第１
型（１０）と、車両用ホイールのディスク部の前記取付
孔開設部の外方部分に合致する第２成形面（１１，ａ）
を有する第２型（１ｊ）と、車両用ホイールのリム部成
形面（１２ａ）を有する第３型とで構成され、前記第１
期（１０）のホイールの中心に合致する部分に押し湯用
の凹部（１３）を形成 し ノこ 。The upper mold (2) has a first molding surface (1, 0a) that matches the mounting hole opening of the disc part of the vehicle wheel.
a mold (10) and a second molding surface (11, a) that matches the outer portion of the mounting hole opening of the disc portion of the vehicle wheel.
a second mold (1j) having a rim part molding surface (12a) for a vehicle wheel;
A recess (13) for the riser is formed in the part that matches the center of the wheel (10).
さらに、前記第１期（１０）を前記第１成形面（１０ａ
）を形成した下側型 （１，Ｏｂ ’）と、該下側型（
１，Ｏｂ ）内に嵌合され前記凹部（１３）を形成した
上側型 （１０ｃ）とに分割すると共に、該上側型（１
０ｃ）の外周と該下側型 （１０ｂ ）との間に空隙（
１４）を設け、前記第２型（１１）の下側型（１，Ｏｂ
）の近傍部分に、空冷パイプ（１５ａ）を埋設した冷
し金（１５）から成る冷却手段を配設した。Further, the first stage (10) is applied to the first molding surface (10a).
) and the lower mold (1,Ob') that formed the lower mold (1, Ob').
The upper mold (10c) is fitted into the upper mold (1, Ob) and forms the recess (13).
There is a gap (
14), and a lower mold (1, Ob
), a cooling means consisting of a chiller (15) in which an air cooling pipe (15a) was embedded was provided.
図示のものでは、下側型 （１０ｂ）と上側型（］、
Ｏｃ ）とを押えブロック（１６）により上方から押え
るようにし、該押えブロック（１６）と該上側型（］、
Ｏｃ）の外周との間にも空隙（１７）を設け、押し湯の
熱が押えブロック（■６）を介して下側型（Ｊｏｂ）に
伝達されるのを阻止し得るようにした。In the illustrated example, the lower mold (10b), the upper mold (],
The press block (16) presses the press block (16) and the upper mold (],
A gap (17) was also provided between the outer periphery of the presser block (6) to prevent the heat of the riser from being transmitted to the lower mold (Job) via the presser block (6).
図面で（１８）は上側型（１０ｃ）と下側型（１０ｂ）
とに配設した複数のノックアウトピン、（１９）は下型
（３）の適所に配設した冷し金を示し、該冷し金（１９
）には水冷パイプ（１９ａ）が埋設されている。In the drawing, (18) is the upper mold (10c) and the lower mold (10b)
A plurality of knockout pins are disposed in the lower mold (3), and (19) indicates a chiller disposed in the appropriate position of the lower mold (3).
) is embedded with a water cooling pipe (19a).
（発明の効果）
以上の如く、請求項１の発明によれば、押し湯用の凹部
を形成した上側型の外周とディスク部の取付孔開設部に
対応する第１成形面を形成した下側型との間に空隙を設
けるため、押し湯の熱か上側型を介して下側型に伝達さ
れるのが阻止され、ホイールのディスク部の取付孔開設
部が速やかに冷却されるようになってディスク部の取付
孔開設部の剛性を高めたホイールを成形できると共に、
押し湯の凝固が遅くなって充分な押し湯作用を得られる
効果を有し、請求項２の発明によれば冷却手段を第２型
の下側型の近傍部分に配設するため、押し湯の凝固を早
めることなくホイールのディスク部の取付孔開設部を冷
却できるようになってその剛性を一層高められる効果を
有する。(Effects of the Invention) As described above, according to the invention of claim 1, the outer periphery of the upper mold in which the recess for the riser is formed and the lower molding surface in which the first molding surface corresponding to the opening of the mounting hole of the disk part is formed. By creating a gap between the mold and the mold, the heat of the feeder is prevented from being transmitted to the lower mold via the upper mold, and the mounting hole opening of the wheel disc part is quickly cooled. It is possible to form a wheel with increased rigidity at the mounting hole opening part of the disc part, and
This has the effect of slowing down the solidification of the riser to obtain a sufficient riser action, and according to the invention of claim 2, since the cooling means is disposed in the vicinity of the lower mold of the second mold, the riser This has the effect of further increasing the rigidity of the mounting hole part of the wheel disc part by cooling it without hastening the solidification of the part.
第１図は本発明の鋳型を具備する低圧鋳造装置の要部の
裁断正面図である。
（２）・・・上型 （１０）・・第１型（１０
ａ）・・・第１成形面 （１，Ｏｂ）・・・下側型（１
０ｃ）・・・上側型 （１Ｊ）・・・第２型（Ｉ
ｌａ）・・・第２成形面 （１３）・・・押し湯用の
凹部（］５）・・・冷し金（冷却手段）
外３名FIG. 1 is a cutaway front view of the main parts of a low-pressure casting apparatus equipped with the mold of the present invention. (2)... Upper mold (10)... First mold (10
a)...First molding surface (1, Ob)...Lower mold (1
0c)...Upper type (1J)...Second type (I
la)...Second molding surface (13)...Recess for riser (]5)...Chilling metal (cooling means) 3 other people
Claims (1)
する第１成形面を有する第１型と、車両用ホィールのデ
ィスク部の前記取付孔開設部の外方部分に合致する第２
成形面を有する第２型とを備える上型であって、前記第
１型のホィールの中心に合致する部分に押し湯用の凹部
を形成するものにおいて、前記第１型を、前記第１成形
面を形成した下側型と、該下側型内に嵌合され前記凹部
を形成した上側型とに分割すると共に、該上側型の外周
と該下側型との間に空隙を設けたことを特徴とする車両
用ホィールの鋳型構造。 ２、前記第２型の前記下側型の近傍部分に冷却手段を配
設したことを特徴とする請求項１に記載の車両用ホィー
ルの鋳型構造。[Scope of Claims] 1. A first mold having a first molding surface that matches the mounting hole opening of the disc portion of the vehicle wheel, and a portion outside the mounting hole opening of the disc portion of the vehicle wheel. Matching second
and a second mold having a molding surface, the upper mold forming a recess for a feeder in a portion that matches the center of the wheel of the first mold, wherein the first mold is connected to the first molding surface. The method is divided into a lower mold having a surface formed thereon and an upper mold fitted into the lower mold forming the recess, and a gap is provided between the outer periphery of the upper mold and the lower mold. A vehicle wheel mold structure featuring: 2. The mold structure for a vehicle wheel according to claim 1, wherein a cooling means is disposed near the lower mold of the second mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33647490A JPH04200967A (en) | 1990-11-30 | 1990-11-30 | Die structure of wheel for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33647490A JPH04200967A (en) | 1990-11-30 | 1990-11-30 | Die structure of wheel for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04200967A true JPH04200967A (en) | 1992-07-21 |
Family
ID=18299511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33647490A Pending JPH04200967A (en) | 1990-11-30 | 1990-11-30 | Die structure of wheel for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04200967A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996027467A1 (en) * | 1995-03-06 | 1996-09-12 | Asahi Tec Corporation | Pressure casting device for automobile wheels |
| JP2005152963A (en) * | 2003-11-27 | 2005-06-16 | Chuo Motor Wheel Co Ltd | Metallic mold for casting wheel for car |
-
1990
- 1990-11-30 JP JP33647490A patent/JPH04200967A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996027467A1 (en) * | 1995-03-06 | 1996-09-12 | Asahi Tec Corporation | Pressure casting device for automobile wheels |
| US5810068A (en) * | 1995-03-06 | 1998-09-22 | Asahi Tec. Corporation | Pressure die-casting apparatus for vehicle wheel |
| JP2005152963A (en) * | 2003-11-27 | 2005-06-16 | Chuo Motor Wheel Co Ltd | Metallic mold for casting wheel for car |
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