JP2598974B2 - Casting equipment - Google Patents
Casting equipmentInfo
- Publication number
- JP2598974B2 JP2598974B2 JP19144688A JP19144688A JP2598974B2 JP 2598974 B2 JP2598974 B2 JP 2598974B2 JP 19144688 A JP19144688 A JP 19144688A JP 19144688 A JP19144688 A JP 19144688A JP 2598974 B2 JP2598974 B2 JP 2598974B2
- Authority
- JP
- Japan
- Prior art keywords
- space
- casting
- mold
- auxiliary
- molten metal
- 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 - Lifetime
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は鋳造装置に関する。Description: TECHNICAL FIELD The present invention relates to a casting apparatus.
従来における鋳造装置において、鋳造物を製造する場
合、湯回りの能率を良くするため、金型温度を充分高く
していた。In a conventional casting apparatus, when producing a casting, the mold temperature has been sufficiently increased in order to improve the efficiency of running the molten metal.
しかしながら、かかる従来における鋳造装置にあって
は、金型温度を充分高くしていたため、溶湯が凝固する
のに時間がかかり、この結果、鋳造物の鋳造組織が密に
ならず、よって強い強度を得にくいという不都合を有し
た。However, in such a conventional casting apparatus, since the mold temperature is sufficiently high, it takes time for the molten metal to solidify, and as a result, the casting structure of the casting does not become dense, and therefore, a strong strength is obtained. There was a disadvantage that it was difficult to obtain.
この発明の課題は、かかる不都合を解消することであ
る。An object of the present invention is to eliminate such inconvenience.
前記課題を達成するために、この発明の鋳造装置にお
いては、鋳型における鋳造空間の上方に補助空間を設
け、この補助空間を前記鋳造空間に連通させ、且つ、前
記鋳型に加圧気体導入孔を設けることにより前記補助空
間に加圧気体を導入可能にした鋳造装置において、 前記鋳型における前記鋳造空間と前記補助空間との境
目に連通路を設け、この連通路を介して前記鋳造空間を
大気中と連通したものである。In order to achieve the above object, in the casting apparatus of the present invention, an auxiliary space is provided above the casting space in the mold, the auxiliary space communicates with the casting space, and a pressurized gas introduction hole is provided in the mold. In the casting apparatus, a pressurized gas can be introduced into the auxiliary space by providing a communication path at a boundary between the casting space and the auxiliary space in the mold, and the casting space is placed in the atmosphere through the communication path. It is in communication with.
上記のように構成された重力鋳造装置にあっては、鋳
型ににおける鋳造空間と補助空間との境目に連通路を設
け、この連通路を介して前記補助空間を大気中と連通し
たため、 鋳造空間に注湯した場合、溶湯は鋳造空間の壁面を上
昇するが、溶湯が鋳造空間と補助空間との境目に達する
と、前記連通路が塞がれるため補助空間内の空気は排出
不可能となり、この結果、溶湯はそれ以上上昇すること
ななく、よって、補助空間内は加圧空間として確保され
る。In the gravity casting apparatus configured as described above, a communication path is provided at the boundary between the casting space and the auxiliary space in the mold, and the auxiliary space is communicated with the atmosphere through this communication path. When the molten metal is poured into the casting space, the molten metal rises on the wall surface of the casting space.However, when the molten metal reaches the boundary between the casting space and the auxiliary space, the air in the auxiliary space cannot be discharged because the communication passage is closed, As a result, the molten metal does not rise any more, so that the auxiliary space is secured as a pressurized space.
以下、この発明の実施例として車両用ホイールの鋳造
装置を採り上げ図面に基づいて説明する。Hereinafter, a vehicle wheel casting apparatus will be described as an embodiment of the present invention with reference to the drawings.
第１図において、Ｍは車両用ホイールを成形するため
の鋳型であり、下型１と横型２と上型３とを組み合わせ
ることによって形成される。この鋳型Ｍは車両用ホイー
ル状の鋳造空間４を有する。11は下型１の第一入子であ
り、前記下型１の中心部にボルト12止めされている。こ
の第一入子11はハブ部（車両用ホイールの）の表面を成
形する。また、111は下型１の第二入子であり、前記第
一入子11の表面に前記ボルト12によって共締めされてい
る。この第二入子111は車両用ホイールの車軸孔を形成
する。また、31は上型３の入子であり、前記上型３の中
心部に嵌着されている。この入子31はハブ部（車両用ホ
イールの）の裏面を成形する。なお、41,41,…は押湯空
間、42は鋳造空間４に連なる湯道、43はこの湯道42に形
成された堰である。In FIG. 1, M is a mold for molding a vehicle wheel, and is formed by combining a lower mold 1, a horizontal mold 2, and an upper mold 3. The mold M has a casting space 4 in the shape of a vehicle wheel. Reference numeral 11 denotes a first insert of the lower die 1, which is fixed to the center of the lower die 1 with a bolt 12. The first insert 11 forms the surface of the hub portion (of the vehicle wheel). Reference numeral 111 denotes a second insert of the lower mold 1, which is fastened to the surface of the first insert 11 by the bolt 12. The second insert 111 forms an axle hole of the vehicle wheel. Reference numeral 31 denotes a nest of the upper die 3, which is fitted to the center of the upper die 3. The insert 31 forms the back surface of the hub portion (of the vehicle wheel). Reference numerals 41, 41,... Indicate a feeder space, reference numeral 42 indicates a runner connected to the casting space 4, and reference numeral 43 indicates a weir formed in the runner 42.
次ぎに、第２図および第３図に基づいて前記上型３に
おける入子31の部分を詳述する。Next, the portion of the insert 31 in the upper die 3 will be described in detail with reference to FIGS.
前記入子（上型３の）31は上端が開口しており、この
開放にはベント筒５が嵌着されている。６は押し出しピ
ンであり、このベント筒５の中心部に進退可能に貫通し
ている。また、51は仕切壁であり、前記ベント筒５の中
間部に一体成形されている。前記ベント筒５内における
この仕切壁51の下方はこの発明の補助空間７を構成す
る。54はベント筒５と入子（上型３の）31との接触面で
あり、この発明の連通路に相当する。この接触面54を介
して鋳造空間４および補助空間７は大気中と連通してい
る。なお、511,511,…は前記仕切壁51に形成されたベン
トホールである。次ぎに、52は蓋体であり、前記ベント
筒５の上端開口を覆っている。この蓋体52には加圧気体
導入孔53が形成されている。８はこの導入孔53に嵌着さ
れた連結具、81はこの連結具８に連なるガス管である。
このため、ガス管81の開閉弁82を開放したとき、加圧気
体はこの連結管８を介して、ベント筒５ひいては補助空
間７に浸入できる。The upper end of the nest (of the upper die 3) 31 is open, and the vent tube 5 is fitted in this opening. Reference numeral 6 denotes an extrusion pin, which penetrates the center of the vent cylinder 5 so as to be able to advance and retreat. Reference numeral 51 denotes a partition wall, which is integrally formed at an intermediate portion of the vent tube 5. The space below the partition wall 51 in the vent cylinder 5 constitutes the auxiliary space 7 of the present invention. Reference numeral 54 denotes a contact surface between the vent tube 5 and the insert (of the upper die 3) 31, which corresponds to the communication passage of the present invention. The casting space 4 and the auxiliary space 7 communicate with the atmosphere via the contact surface 54. Are vent holes formed in the partition wall 51. Next, 52 is a lid, which covers the upper end opening of the vent cylinder 5. The cover 52 has a pressurized gas introduction hole 53 formed therein. Reference numeral 8 denotes a connecting tool fitted into the introduction hole 53, and reference numeral 81 denotes a gas pipe connected to the connecting tool 8.
Therefore, when the on-off valve 82 of the gas pipe 81 is opened, the pressurized gas can enter the vent cylinder 5 and thus the auxiliary space 7 through the connecting pipe 8.
次ぎにこのように構成される鋳型Ｍの使用方法を説明
する。Next, a method of using the template M configured as described above will be described.
まず、鋳造空間４に溶湯を注入する。すると、鋳造空
間４を溶湯Ａが上昇する。このとき、鋳造空間４内の空
気は接触面54を介して大気中に排出される。そして、溶
湯Ａが鋳造空間４と補助空間７との境目に達すると、接
触面54の隙間が溶湯Ａによって塞がれるため、鋳造空間
７内の空気は排出不可能となる結果、溶湯はそれ以上上
昇することなない。よって、補助空間７内は加圧空間と
して確保される。First, a molten metal is injected into the casting space 4. Then, the molten metal A rises in the casting space 4. At this time, the air in the casting space 4 is discharged to the atmosphere via the contact surface 54. When the molten metal A reaches the boundary between the casting space 4 and the auxiliary space 7, the gap in the contact surface 54 is closed by the molten metal A, so that the air in the casting space 7 cannot be discharged. No more rise. Therefore, the inside of the auxiliary space 7 is secured as a pressurized space.
そして、前記ガス管81の開閉弁82を開放して補助空間
７内に加圧気体を供給して、補助空間７の内圧を高め
る。すると、補助空間７の下端部まで達している溶湯Ａ
の表面は押圧され、この結果、溶湯Ａは鋳造空間４の隅
々にまで簡単かつ容易に浸入する。Then, the on-off valve 82 of the gas pipe 81 is opened to supply a pressurized gas into the auxiliary space 7 to increase the internal pressure of the auxiliary space 7. Then, the molten metal A reaching the lower end of the auxiliary space 7
Is pressed, and as a result, the molten metal A easily and easily penetrates into every corner of the casting space 4.
この発明の鋳造装置は、 鋳型における鋳造空間の上方に補助空間を設け、この
補助空間を前記鋳造空間に連通させ、且つ、前記前記鋳
型に加圧気体導入孔を設けることにより前記補助空間に
加圧気体を導入可能にした鋳造装置において、 前記鋳型における前記鋳造空間と前記補助空間との境
目に連通路を設け、この連通路を介して前記鋳造空間を
大気中と連通したため、 即ち、鋳型ににおける鋳造空間と補助空間との境目に
連通路を設け、この連通路を介して前記補助空間を大気
中と連通したため、 鋳造空間に注湯した場合、溶湯は鋳造空間の壁面を上
昇するが、溶湯が鋳造空間と補助空間との境目に達する
と、補助空間内の空気は排出不可能となるため、溶湯は
それ以上上昇することななく、したがって、補助空間内
は加圧空間として確保される。In the casting apparatus of the present invention, an auxiliary space is provided above the casting space in the mold, the auxiliary space is communicated with the casting space, and a pressurized gas introduction hole is provided in the mold to add the auxiliary space. In a casting apparatus capable of introducing a pressurized gas, a communication path is provided at a boundary between the casting space and the auxiliary space in the mold, and the casting space is communicated with the atmosphere through this communication path. Since a communication passage is provided at the boundary between the casting space and the auxiliary space in the above, and the auxiliary space is communicated with the atmosphere through this communication passage, when the molten metal is poured into the casting space, the molten metal rises on the wall surface of the casting space. When the molten metal reaches the boundary between the casting space and the auxiliary space, the air in the auxiliary space cannot be discharged, so that the molten metal does not rise any further. Is preserved.
よって、この鋳造装置を使用すれば金型温度を高くし
なくても湯回りを維持できるため、鋳造組織の密な鋳造
品、即ち、強度の優れた鋳造品を得ることができる。Therefore, if this casting apparatus is used, the running of the molten metal can be maintained without increasing the mold temperature, so that a cast product having a dense casting structure, that is, a cast product having excellent strength can be obtained.
図面はこの発明に係る重力鋳造装置の実施例を示すもの
で、 第１図は鋳型の部分断面図、 第２図は第１図におけるII部拡大断面図、 第３図は第２図におけるIII−III線断面図である。 ４……鋳造空間 52……接触面（連通路） 53……加圧気体導入孔 ７……補助空間The drawings show an embodiment of the gravity casting apparatus according to the present invention. FIG. 1 is a partial sectional view of a mold, FIG. 2 is an enlarged sectional view of a part II in FIG. 1, and FIG. FIG. 3 is a sectional view taken along line III. 4 Casting space 52 Contact surface (communication passage) 53 Pressurized gas introduction hole 7 Auxiliary space
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２２Ｄ 18/04 Ｂ２２Ｄ 18/04 Ｒ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical display location B22D 18/04 B22D 18/04 R
Claims (1)
設け、この補助空間を前記鋳造空間に連通させ、 且つ、前記鋳型に加圧気体導入孔を設けることにより前
記補助空間に加圧気体を導入可能にした鋳造装置におい
て、 前記鋳型における前記鋳造空間と前記補助空間との境目
に連通路を設け、この連通路を介して前記鋳造空間を大
気中と連通した鋳造装置。An auxiliary space is provided above a casting space in a mold, the auxiliary space is communicated with the casting space, and a pressurized gas introduction hole is provided in the mold so that a pressurized gas is supplied to the auxiliary space. A casting apparatus, wherein a communication path is provided at a boundary between the casting space and the auxiliary space in the mold, and the casting space communicates with the atmosphere via the communication path.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19144688A JP2598974B2 (en) | 1988-07-31 | 1988-07-31 | Casting equipment |
| KR1019890010882A KR930002519B1 (en) | 1988-07-31 | 1989-07-31 | Casting device, method for using the device, casting device of vehicle wheel, method for using the device and vehicle wheel |
| AU39117/89A AU628831B2 (en) | 1988-07-31 | 1989-07-31 | Casting device, method for using the device, casting device of vehicle wheel, method for using the device, and vehicle wheel |
| EP89114139A EP0356736B1 (en) | 1988-07-31 | 1989-07-31 | Casting device, method for using the device, casting device of vehicle wheel, method for using the device, and vehicle wheel |
| EP96105707A EP0722795B1 (en) | 1988-07-31 | 1989-07-31 | Method and device for casting vehicle wheels |
| CA000607134A CA1337234C (en) | 1988-07-31 | 1989-07-31 | Casting device, method for using the device, casting device of vehicle wheel, method for using the device, and vehicle wheel |
| AT89114139T ATE144928T1 (en) | 1988-07-31 | 1989-07-31 | CASTING ARRANGEMENT, METHOD OF USE OF THE ARRANGEMENT, CASTING ARRANGEMENT FOR VEHICLE WHEELS, METHOD OF USE OF THE ARRANGEMENT AND VEHICLE WHEELS |
| DE68928866T DE68928866T2 (en) | 1988-07-31 | 1989-07-31 | Method and device for casting vehicle wheels |
| DE68927427T DE68927427T2 (en) | 1988-07-31 | 1989-07-31 | Casting arrangement, method for using the arrangement, casting arrangement for vehicle wheels, method for using the arrangement and vehicle wheels |
| US07/840,645 US5320160A (en) | 1988-07-31 | 1992-02-21 | Casting device, method for using the device, casting device of vehicle wheel, method for using the device, and vehicle wheel |
| US08/271,211 US5527101A (en) | 1988-07-31 | 1994-07-05 | Casting device, method for using the device, casting device of vehicle wheel, method for using the device, and vehicle wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19144688A JP2598974B2 (en) | 1988-07-31 | 1988-07-31 | Casting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0241755A JPH0241755A (en) | 1990-02-09 |
| JP2598974B2 true JP2598974B2 (en) | 1997-04-09 |
Family
ID=16274759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19144688A Expired - Lifetime JP2598974B2 (en) | 1988-07-31 | 1988-07-31 | Casting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2598974B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057603A (en) * | 2015-08-21 | 2015-11-18 | 广东富华铸锻有限公司 | Process for eliminating shrinkage porosity of hub casting |
| CN105935761A (en) * | 2016-06-15 | 2016-09-14 | 中信戴卡股份有限公司 | Low pressure casting bottom die for aluminum alloy hub |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517895A (en) * | 2020-12-01 | 2021-03-19 | 易县瑞鑫铸造有限公司 | Wheel hub casting equipment that casting precision is high |
-
1988
- 1988-07-31 JP JP19144688A patent/JP2598974B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057603A (en) * | 2015-08-21 | 2015-11-18 | 广东富华铸锻有限公司 | Process for eliminating shrinkage porosity of hub casting |
| CN105935761A (en) * | 2016-06-15 | 2016-09-14 | 中信戴卡股份有限公司 | Low pressure casting bottom die for aluminum alloy hub |
| US10058913B2 (en) | 2016-06-15 | 2018-08-28 | Citic Dicastal Co., Ltd. | Low-pressure casting bottom mold for aluminum alloy hub |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0241755A (en) | 1990-02-09 |
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