JPH03456A - Casting apparatus - Google Patents
Casting apparatusInfo
- Publication number
- JPH03456A JPH03456A JP13508089A JP13508089A JPH03456A JP H03456 A JPH03456 A JP H03456A JP 13508089 A JP13508089 A JP 13508089A JP 13508089 A JP13508089 A JP 13508089A JP H03456 A JPH03456 A JP H03456A
- Authority
- JP
- Japan
- Prior art keywords
- gas vent
- gas
- venting hole
- gas venting
- 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.)
- Pending
Links
- 238000005266 casting Methods 0.000 title claims description 21
- 239000002184 metal Substances 0.000 claims abstract description 23
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000013022 venting Methods 0.000 abstract description 9
- 239000000314 lubricant Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 3
- 239000006082 mold release agent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（ａ業上の利用分野）
本発明はシリンダブロック等を鋳造する鋳造装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Application The present invention relates to a casting apparatus for casting cylinder blocks and the like.
（従来の技術）
シリンダブロック等の鋳物を鋳造するには従来から、ス
リーブ内に貯溜したＡｕ合金の溶湯をプランジャで加圧
し、ランナーを介して金型間に形成されるキャビティ内
に充填するようにしている。(Prior Art) Conventionally, in order to cast castings such as cylinder blocks, molten Au alloy stored in a sleeve is pressurized with a plunger and filled into a cavity formed between molds via a runner. I have to.
そして、キャビティ内への溶湯を充填するにあたっては
、キャビティ内の空気をキャビテイ外に排除しないとキ
ャビティ内の背圧が高くなり、充填不足や湯境い等の鋳
造欠陥を生じる。そこで従来にあっては、湯口と反対側
の部分或いは溶湯の最終到達部にオーバフローウェルを
設け、このオーバフローウェルにガス抜き穴を開口せし
め、溶湯充填時にオーバフローウェルを介してガス抜き
を行うようにしている。When filling the cavity with molten metal, if the air inside the cavity is not removed to the outside of the cavity, the back pressure inside the cavity will increase, causing casting defects such as insufficient filling and water gaps. Therefore, in the past, an overflow well was provided on the opposite side of the sprue or at the final destination of the molten metal, and a gas vent hole was opened in this overflow well, so that gas was vented through the overflow well when filling the molten metal. ing.
（発明が解決しようとする課題）
上述した従来の鋳造装置にあっては、キャビティ内のガ
スが完全に抜けきる前に、先走り溶湯がオーバフローウ
ェル内に入り、ガス抜き穴を閉塞し、キャビティ内にガ
スが残り、これが充填不足、鋳巣或いは湯境い等の鋳造
欠陥の原因となっている。特にシリンダブロック鋳造用
金型にあっては、キャビティのうちボア中央部では肉厚
が薄く渇廻りが悪くなって充填がおくれ、上記不利が顕
著となる。(Problems to be Solved by the Invention) In the conventional casting apparatus described above, the advance molten metal enters the overflow well before the gas in the cavity is completely released, blocks the gas vent hole, and causes the inside of the cavity to flow. Gas remains in the mold, which causes casting defects such as insufficient filling and cavities. Particularly in the case of a mold for casting a cylinder block, the wall thickness is thin in the central part of the bore of the cavity, and the drying process is poor, resulting in a delay in filling, and the above-mentioned disadvantage becomes noticeable.
（課題を解決するための手段）
上記課題を解決すべく本発明は、金型分割面のうち湯口
から離れた部分に溶湯が流れ込まない程度のクリアラン
スのガスベントを形成し、このガスベントにガス抜き穴
を開口し、更にこのガス抜き穴に各ショット毎ににガス
抜き穴を摺動する掃除ピンを挿入した。(Means for Solving the Problems) In order to solve the above problems, the present invention forms a gas vent with a clearance that prevents the molten metal from flowing into the part of the mold dividing surface that is remote from the sprue, and has a gas vent hole in the gas vent. was opened, and a cleaning pin that slid through the gas vent hole was inserted into the gas vent hole for each shot.
（作用）
ガスベントは溶湯によりて閉塞されないため確実にガス
抜きを行え、また各ショット毎に掃除ピンがガス抜き穴
内を摺動するため、ガス抜き穴内に潤滑剤や離型剤等が
詰まることがない。(Function) The gas vent is not blocked by molten metal, so gas can be removed reliably. Also, since the cleaning pin slides inside the gas vent hole after each shot, the gas vent hole will not be clogged with lubricant or mold release agent. do not have.
（実施例） 以下に本発明の実施例を添付図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the accompanying drawings.
第１図は本発明に係る鋳造装置の縦断面図、第２図は同
鋳造装置の異なる部分の縦断面図、第３図は第１図のＡ
−Ａ方向矢視図である。FIG. 1 is a longitudinal sectional view of a casting apparatus according to the present invention, FIG. 2 is a longitudinal sectional view of different parts of the same casting apparatus, and FIG. 3 is an A of FIG.
-A direction arrow view.
鋳造装置は固定型１、可動型２及び摺動型３によフてシ
リンダブロックを鋳造するためのキャビティ４を形成し
、このキャビティ４内にクォータジャケット部等を成形
するための金型５等をセットするようにしている。The casting device includes a fixed mold 1, a movable mold 2, and a sliding mold 3 to form a cavity 4 for casting a cylinder block, and a mold 5, etc. for molding a quarter jacket part etc. in this cavity 4. I am trying to set it.
また固定型１には溶湯Ｍを貯溜するスリーブ６が取付け
られている。このスリーブ６内には図示しない供給装置
から一定量ずつ溶湯Ｍが供給され、またスリーブ６内に
は溶湯Ｍを押出すためのプランジャ７を摺動自在に配設
し、更に湯口８からの溶湯Ｍをランナー９を介して前記
キャビティ４内に充填するようにしている。Further, a sleeve 6 for storing molten metal M is attached to the fixed mold 1. A fixed amount of molten metal M is supplied into the sleeve 6 from a supply device (not shown), and a plunger 7 for pushing out the molten metal M is slidably disposed inside the sleeve 6. The cavity 4 is filled with M through the runner 9.
またキャビティ４を形成する各金型の分割面のうち湯口
８から離れた反対側の面、つまり溶湯の最終到達面とな
る部分にはオーバフローウェル１０及びガスベント１１
を形成している。オーバフローウェル１０は溶湯Ｍが流
れ込むことができるクリアランスの流路１２を介してキ
ャビティ４と連通するとともに可動型２に形成したガス
抜き穴１３が開口し、このガス抜き穴１３内にはガスが
通るだけのクリアランスをもって押出しピン１４が摺動
自在に挿入されている。In addition, an overflow well 10 and a gas vent 11 are provided on the surface opposite to the sprue 8 of the dividing surface of each mold forming the cavity 4, that is, the surface where the molten metal finally reaches.
is formed. The overflow well 10 communicates with the cavity 4 via a flow path 12 with a clearance through which the molten metal M can flow, and a gas vent hole 13 formed in the movable mold 2 is opened, and gas passes through the gas vent hole 13. The push-out pin 14 is slidably inserted with a clearance of .
一方、ガスベント１１は溶湯Ｍの流入を阻止する微小ク
リアランスでもってキャビティ４と連通ずるとともに可
動型２に形成したガス抜き穴１５が開口し、このガス抜
き穴１５内にガスが通るだけのクリアランス（０，２〜
０．２５１１１１１１程度）をもって掃除ピン１Ｂが摺
動自在に挿入され、この掃除ピン１６は後端が連結板等
を介して前記押出しピンに連結し、押出しピン１４と連
動して各ショット毎にガス抜き穴１５から出没動するよ
うになっている。尚、掃除ピン１６については押出しピ
ン１４とは別に独立して動作するようにしてもよい。On the other hand, the gas vent 11 communicates with the cavity 4 with a minute clearance that prevents the inflow of the molten metal M, and a gas vent hole 15 formed in the movable mold 2 opens, with a clearance ( 0,2～
0.25111111), the cleaning pin 1B is slidably inserted, and the rear end of this cleaning pin 16 is connected to the extrusion pin via a connecting plate, etc., and works in conjunction with the extrusion pin 14 to supply gas for each shot. It is designed to move in and out from the hole 15. Note that the cleaning pin 16 may be operated independently of the push-out pin 14.
第４図及び第５図は別実施例を示す第１図及び第３図と
同様の図であり、この実施例にあっては湯口８と反対側
の金型分割面の上部及び下部のそれぞれにガスベント１
１を形成し、キャビティ４の上部及び下部の双方からガ
ス抜きを行うことで、溶湯の充填とガス抜鎗を確実にし
ている。4 and 5 are views similar to FIGS. 1 and 3 showing another embodiment, and in this embodiment, the upper and lower parts of the mold dividing surface on the opposite side from the sprue 8 are shown. gas vent 1
1 and venting gas from both the upper and lower portions of the cavity 4 ensures filling of the molten metal and degassing.
以上の如き構成の鋳造装置の作用は以下の通りである。The operation of the casting apparatus constructed as above is as follows.
即ち、スリーブ６内の溶ｔ％ Ｍをプランジャ７で加圧
しランナー９を介してキャビティ４内に流入せしめる。That is, the molten t% M in the sleeve 6 is pressurized by the plunger 7 and flows into the cavity 4 via the runner 9.
そしてキャビティ４内に流入した溶湯Ｍはキャビティ４
内のガスを前記ガス抜き穴１３．１５を介して外部に排
出する。The molten metal M that has flowed into the cavity 4 flows into the cavity 4.
The gas inside is discharged to the outside through the gas vent hole 13.15.
そして、溶湯Ｍがオーバフローウェル１０に達すると溶
湯Ｍはオーバフローウェル１０内に流れ込んでオーバフ
ローウェル１０に開口するガス抜き穴１３を閉塞する。When the molten metal M reaches the overflow well 10, the molten metal M flows into the overflow well 10 and closes the gas vent hole 13 opening into the overflow well 10.
しかしながら溶湯Ｍがガスベント１１に達してもガスベ
ント１１のクリアランスは小さく溶湯は流れ込まないの
で、オーバフローウェル１０を溶湯Ｍが閉塵した時点で
キャビティ４内にガスが残っていた場合でも、前記ガス
ベント１１に開口するガス抜き穴１５を介してガスは排
除される。However, even if the molten metal M reaches the gas vent 11, the clearance of the gas vent 11 is small and the molten metal will not flow into the gas vent 11. Gas is removed through the open gas vent hole 15.
そして、溶湯充填後に溶湯が凝固したならば、型を開き
押出しピン１４を突出して製品を払い出す。この動作と
連動して前記掃除ピン１６がガス抜き穴１５から突出し
、ガス抜き穴１５の周面等に付着しているＡ１粉（Ａ１
合金溶湯を用いた場合）、潤滑剤及び離型剤等の不純物
を掻き落し、掃除ピン１６とガス抜き穴１５内周面との
間のクリアランスを維持する。When the molten metal is solidified after being filled with the molten metal, the mold is opened and the extrusion pins 14 are protruded to eject the product. In conjunction with this operation, the cleaning pin 16 protrudes from the gas vent hole 15, and the A1 powder (A1
When using a molten alloy), impurities such as lubricant and mold release agent are scraped off, and a clearance between the cleaning pin 16 and the inner peripheral surface of the gas vent hole 15 is maintained.
（考案の効果）
以上に説明した如く本発明によれば、鋳造装置の金型分
割面のうち、湯口から離れた部分、つまりガスがたまり
やすい部分に溶湯が流れ込まない程度のクリアランスの
ガスベントを形成したため、充填不良や湯境い等の鋳造
欠陥を防止でき、またガスベントに開口するガス抜き穴
には各ショット毎に出没する掃除ピンを設けたもので、
潤滑剤等によってガス抜き穴が詰まるおそれもなく常に
一定クリアランスのガス抜き穴を確保でき、したがって
高品質の製品を連続して鋳造することができる。(Effects of the invention) As explained above, according to the present invention, a gas vent is formed with a clearance that prevents molten metal from flowing into the part of the mold dividing surface of the casting device away from the sprue, that is, the part where gas tends to accumulate. As a result, casting defects such as incomplete filling and hot water gaps can be prevented, and the gas vent hole that opens to the gas vent is equipped with a cleaning pin that appears after each shot.
There is no fear that the gas vent hole will be clogged with lubricant or the like, and a gas vent hole with a constant clearance can be ensured at all times, making it possible to continuously cast high-quality products.
第１図は本発明に係る鋳造装置の縦断面図、第２図は同
鋳造装置の第１図とは異なる部分の縦断面図、第３区は
第１図のＡ−Ａ方向矢視図、第４図は別実施例を示す第
１図と同様の図、第５図は第４図のＢ−Ｂ方向矢視図で
ある。
尚、図面中１は固定型、２は可動型、４はキャビティ、
８は湯口、１０はオーバフローウェル、１１はガスベン
ト、１３は、１５はガス抜き穴、１４は押出しピン１６
は掃除ピンである。
特 許 出 願 人 本田技研工業株式会社代理人
弁理士 下 １） 容−即問 弁理士
大 橋 邦 度量 弁理士 小
山 有第
図
第
図FIG. 1 is a longitudinal sectional view of a casting device according to the present invention, FIG. 2 is a longitudinal sectional view of a portion of the same casting device that is different from FIG. , FIG. 4 is a view similar to FIG. 1 showing another embodiment, and FIG. 5 is a view taken along the arrow B--B in FIG. 4. In addition, in the drawing, 1 is a fixed type, 2 is a movable type, 4 is a cavity,
8 is a sprue, 10 is an overflow well, 11 is a gas vent, 13 and 15 are gas vent holes, 14 is an extrusion pin 16
is a cleaning pin. Patent applicant: Agent for Honda Motor Co., Ltd.
Patent Attorney Part 2 1) Yong-Immediate Question Patent Attorney
Kuni Ohashi Patent Attorney Small
Mountain map map
Claims (3)
阻止し得る微小クリアランスのガスベントを形成し、こ
のガスベントにガス抜き穴を開口し、更にガス抜き穴に
各ショット毎に出没動する掃除ピンを挿入したことを特
徴とする鋳造装置。(1) A gas vent with a minute clearance that can prevent the inflow of molten metal is formed on the parting surface of the mold at a location away from the sprue, a gas vent hole is opened in this gas vent, and the gas vent hole is moved in and out for each shot. A casting device characterized by having a cleaning pin inserted therein.
また前記ガスベントはボア中央部に設けられていること
を特徴とする請求項（１）に記載の鋳造装置。(2) The mold is a cylinder block casting mold,
The casting apparatus according to claim 1, wherein the gas vent is provided at the center of the bore.
とする請求項（１）に記載の鋳造装置。(3) The casting apparatus according to claim 1, wherein the cleaning pin is interlocked with an extrusion pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13508089A JPH03456A (en) | 1989-05-29 | 1989-05-29 | Casting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13508089A JPH03456A (en) | 1989-05-29 | 1989-05-29 | Casting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03456A true JPH03456A (en) | 1991-01-07 |
Family
ID=15143370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13508089A Pending JPH03456A (en) | 1989-05-29 | 1989-05-29 | Casting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03456A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634314A (en) * | 2012-04-25 | 2012-08-15 | 嘉兴荣泰高分子新材料研究所 | Heat-conducting epoxy dipped adhesive and preparation method |
| CN102643621A (en) * | 2012-04-20 | 2012-08-22 | 浙江荣泰科技企业有限公司 | Epoxy resin adhesive for impregnation with high heat resistance and preparation method thereof |
| US8327916B2 (en) * | 2010-01-14 | 2012-12-11 | Toyota Motor Engineering & Manufacturing North America (Tema) | Low pressure cylinder head outer die components for core gas removal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5857361B2 (en) * | 1974-09-20 | 1983-12-20 | 株式会社豊田中央研究所 | I can't wait to see what's going on. |
| JPS61219458A (en) * | 1985-03-26 | 1986-09-29 | Nissan Motor Co Ltd | Die casting device |
| JPS63816B2 (en) * | 1978-12-13 | 1988-01-08 | Nippon Electric Co |
-
1989
- 1989-05-29 JP JP13508089A patent/JPH03456A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5857361B2 (en) * | 1974-09-20 | 1983-12-20 | 株式会社豊田中央研究所 | I can't wait to see what's going on. |
| JPS63816B2 (en) * | 1978-12-13 | 1988-01-08 | Nippon Electric Co | |
| JPS61219458A (en) * | 1985-03-26 | 1986-09-29 | Nissan Motor Co Ltd | Die casting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8327916B2 (en) * | 2010-01-14 | 2012-12-11 | Toyota Motor Engineering & Manufacturing North America (Tema) | Low pressure cylinder head outer die components for core gas removal |
| CN102643621A (en) * | 2012-04-20 | 2012-08-22 | 浙江荣泰科技企业有限公司 | Epoxy resin adhesive for impregnation with high heat resistance and preparation method thereof |
| CN102634314A (en) * | 2012-04-25 | 2012-08-15 | 嘉兴荣泰高分子新材料研究所 | Heat-conducting epoxy dipped adhesive and preparation method |
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