JPH03297552A - Method for removing sand in casting product - Google Patents
Method for removing sand in casting productInfo
- Publication number
- JPH03297552A JPH03297552A JP9896390A JP9896390A JPH03297552A JP H03297552 A JPH03297552 A JP H03297552A JP 9896390 A JP9896390 A JP 9896390A JP 9896390 A JP9896390 A JP 9896390A JP H03297552 A JPH03297552 A JP H03297552A
- Authority
- JP
- Japan
- Prior art keywords
- sand
- core
- air
- casting
- connection port
- 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
- 239000004576 sand Substances 0.000 title claims abstract description 59
- 238000005266 casting Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 241000238413 Octopus Species 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000003801 milling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
- Road Repair (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は鋳造作業の仕上げ工程において中子の砂を落す
鋳造品の砂抜き方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for removing sand from a cast product by removing sand from a core during the finishing process of a casting operation.
例えば、自動車等のエンジンヘッドはエンジン冷却のた
めのウォータジャケット孔に倣う中子を使用してアルミ
ニウム鋳造される。このため、ヘッド鋳造後、前記中子
の砂を取除く必要がある。For example, engine heads for automobiles and the like are cast in aluminum using a core that mimics the water jacket holes for engine cooling. For this reason, it is necessary to remove the sand from the core after casting the head.
しかしながら、この中子は、複雑な形状を呈し、中子砂
がヘッド鋳造品の内部隅々まで埋設されて残るので、中
子砂を除去することは厄介な作業であった。However, this core has a complicated shape, and since the core sand remains embedded in every corner of the head casting, it is a troublesome task to remove the core sand.
即ち、従来、このような鋳造品は砂落しハンマ等で鋳造
品を打ち叩いて振動を与え砂を落としたり、あるいはエ
アノズルを鋳造品の接続口（ジャケット口）から鋳造品
内に挿入して砂を吹き飛ばしていた。In other words, in the past, such castings were produced by hitting the casting with a sand-removal hammer or the like to apply vibrations and removing sand, or by inserting an air nozzle into the casting from the connection port (jacket port) of the casting to remove sand. was blowing away.
ところが、砂落しハンマ等で鋳造品を打ち叩き振動を与
える方法では、内部の縁部や奥部の砂を取除くことがで
きなかった。また、エアノズルを鋳造品内に挿入する方
法では、内部に固まった砂を吹き飛ばすために強力なエ
ア圧力が必要であると共に、エアノズルの位置決めや挿
入に制御装置を必要とし、砂落し装置を複雑且つ高価に
し、ノズルと鋳造品との接触等のトラブルを発生させる
原因ともなっていた。However, by hitting the casting with a sand hammer or the like and applying vibration, it was not possible to remove the sand from the internal edges and deep parts. In addition, the method of inserting an air nozzle into a casting requires strong air pressure to blow away the sand that has hardened inside, and also requires a control device to position and insert the air nozzle, making the sand removal device complicated and complicated. This increases the cost and causes problems such as contact between the nozzle and the cast product.
本発明は上記の点に鑑み創案されたもので、鋳造品の隅
々まで砂を取除くことができ、強力なエア圧力を要せず
、エアノズルの制御装置も要せず簡単且つ安価で、ノズ
ルと鋳造品との接触等のトラブルも解決した鋳造品の砂
抜き方法を提供することを目的とする。The present invention was devised in view of the above points, and it is possible to remove sand from every corner of a cast product, does not require strong air pressure, and does not require an air nozzle control device, making it simple and inexpensive. The purpose of the present invention is to provide a method for removing sand from a cast product that solves problems such as contact between a nozzle and the cast product.
前記の課題を解決するため、本発明においては、外面に
突出するタコ足を、側面に接続口を形成した中子を使用
する鋳造品の砂抜き方法において、前記タコ足を切断し
た後、砂落しハンマで前記鋳造品に振動を加えながら、
前記接続口に所定の距離だけ離間したエアノズルより圧
縮エアを注入し、前記接続口から適量の砂を除去した後
、残余の砂を前記タコ足の切断口から吹き飛ばずことを
特徴とする。前記エアノズルは可撓性材料であることを
特徴とする。In order to solve the above-mentioned problems, the present invention provides a method for removing sand from a cast product using a core having connection ports formed on the side surface of the octopus feet protruding from the outside, after cutting off the octopus feet. While applying vibration to the casting with a drop hammer,
Compressed air is injected into the connection port from an air nozzle spaced apart by a predetermined distance, and after removing an appropriate amount of sand from the connection port, the remaining sand is not blown away from the cut port of the octopus leg. The air nozzle is made of flexible material.
砂落しハンマによる衝撃力と、エアノズルの吹き出しを
併用すると共に、エアノズルを鋳造品の接続口から所定
距離前して設置し、側方の接続口よりタコ足の切断口へ
のエア流により砂抜きを行ったので、鋳造品の隅々まで
効率よく砂を取除くことができる。Using a combination of impact force from a sand removal hammer and blowing air from an air nozzle, the air nozzle is installed a predetermined distance in front of the connection port of the casting, and sand is removed by air flow from the side connection port to the cut end of the octopus leg. This allows sand to be efficiently removed from every corner of the casting.
以下、本発明の一実施例を図面に基づき説明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図は鋳造されたワークを加工する一連の自を示す砂
落し装置の説明図、第４図は砂抜き方法の動作順序を示
す説明図である。FIG. 1 is an explanatory view of a sand removal device showing a series of processes for processing a cast workpiece, and FIG. 4 is an explanatory view showing the operating sequence of the sand removal method.
第１図及び第２図において、自動車のエンジンヘッド等
の鋳造品を鋳造する成形機に隣設し、前記鋳造品の上面
部のパリを除去するフライス盤Ｆ、前記鋳造品のジャケ
ット部等の穴部に埋設された中子砂を除去する砂落し装
置Ａが一列に配置されている。In FIGS. 1 and 2, a milling machine F is installed adjacent to a molding machine that casts a cast product such as an automobile engine head, and is used to remove burr on the upper surface of the cast product, and a milling machine F is installed to remove holes in the jacket part of the cast product. Sand removal devices A are arranged in a row to remove core sand buried in the core.
本発明は前記一連の自動加工装置における初工程のフラ
イス盤Ｆと砂落し装置Ａに係る方法である。The present invention is a method relating to a milling machine F and a sand removal device A that are the first steps in the series of automatic processing devices.
第１図から第４図に示すように、鋳造品であるエンジン
ヘッド等のワークＷは、該ワークＷの上面にタコ足りが
複数突設し、中子砂Ｓのタコ足り部表面にアルミ合金が
薄く被覆して形成されると共に、ジャケット接続口Ｗｊ
は若干中子砂Ｓが突出するようになっている。先ず、初
工程のフライス盤Ｆで前記タコ足りの先端が切断される
。続いて、搬送装装置１（第１図参照）のトランサ２で
１ピツチ又は２ピツチ、レール３，３上を砂落し装ＷＡ
に搬送されたワークＷは、砂落し装置Ａ内へ搬入される
。搬入されると、ワークＷはワーク押えガイド７にガイ
ドされて下降するワーク押え８によりクランプされる。As shown in FIGS. 1 to 4, a workpiece W such as an engine head, which is a cast product, has a plurality of octopus supports protruding from the upper surface of the workpiece W, and an aluminum alloy is formed on the surface of the octopus support portions of the core sand S. is formed by thinly covering the jacket connection port Wj
The core sand S is slightly protruding. First, the tip of the octopus is cut off by a milling machine F in the first step. Next, the transer 2 of the transport device 1 (see Fig. 1) carries out sand removal on the rails 3, 3, one pitch or two pitches.
The workpiece W transported to is carried into the sand removing device A. When carried in, the workpiece W is guided by the workpiece presser guide 7 and clamped by the workpiece presser 8 which descends.
ワーク押え８の左側にはワークＷの湯口Ｗｇに対向して
、ワークＷを打ち叩いて振動を与える砂落しハンマ９が
上下動可能に設けられている。、また、１０はエア吹出
装置であり、そのエア吹出装置１０のエアノズル１０ａ
１０ｂはワークＷのジャケット接続口Ｗｊに対向し
て所定距離Ｌ＝１０〜１５ （ｎｕｎ）隔てて左右に設
けられる。また、下方にも付加的にノズル１０ｃが設け
られ、エア管１１によりそれぞれ外部の図示しない制御
弁を介してエア源に接続され、エアの供給を受ける。On the left side of the workpiece holder 8, facing the sprue Wg of the workpiece W, a sand removal hammer 9 for hitting the workpiece W to give vibration is provided so as to be movable up and down. , 10 is an air blowing device, and the air nozzle 10a of the air blowing device 10 is
10b are provided on the left and right sides facing the jacket connection port Wj of the workpiece W and separated by a predetermined distance L=10 to 15 (nun). Further, nozzles 10c are additionally provided below, and each is connected to an air source via an external control valve (not shown) through an air pipe 11 to receive air supply.
次に、第４図に基づいて本発明の砂抜き方法を詳述する
。なお、Ｗはワーク、Ｗｊはジャケット接続口、Ｄはタ
コ足、Ｓは中子砂、１０ａはノズルを示す。Next, the sand removal method of the present invention will be explained in detail based on FIG. In addition, W is a workpiece, Wj is a jacket connection port, D is an octopus foot, S is core sand, and 10a is a nozzle.
前記した如く、初工程部のフライス盤Ｆにてワおいて、
砂落しハンマ９の衝撃力が連続的に加わり、併せて、側
方のジャケット接続口Ｗｊに対し、所定距離Ｌ−１０〜
１５ （ｎｕｎ）隔ててエアノズル１０ａからエアブロ
−が当たる（ｂ図）。先ず中子砂Ｓはジャケット接続口
Ｗｊからエアブロ−の流れを避けて円環状に外方へ飛散
し゛ていく。徐々に中子砂Ｓはジャケット接続口Ｗｊか
ら除去され（Ｃ図）、ある適当な内部まで取り除かれる
と、上面のタコ足切断口ｗｈより上方に勢いよく飛散す
る（ｄ図）。この過程において、砂落しハンマ９の衝撃
力が連続的に加わっているため、内部の縁部や奥部の砂
もこのエアプローにより隅々まで除去することができる
。As mentioned above, milling machine F in the first process section is used to cut
The impact force of the sand removal hammer 9 is continuously applied, and at the same time, a predetermined distance L-10~ is applied to the side jacket connection port Wj.
Air blow hits from the air nozzle 10a at a distance of 15 (nun) (Figure b). First, the core sand S scatters outward in an annular shape from the jacket connection port Wj, avoiding the flow of air blow. The core sand S is gradually removed from the jacket connection port Wj (Fig. C), and when it is removed to a certain appropriate inside, it is vigorously scattered upward from the octopus foot cutting port wh on the upper surface (Fig. D). In this process, since the impact force of the sand removing hammer 9 is continuously applied, the sand at the internal edges and deep areas can be removed to every corner by this air blower.
なお、このエア吹出装置のノズル１０ａ、１０ｂ、１０
ｃはゴム等の可撓性材料としたため、不慮のワークＷと
ノズルとの接触においてもトラブルを発生することがな
い。Note that the nozzles 10a, 10b, 10 of this air blowing device
Since c is made of a flexible material such as rubber, no trouble will occur even if the workpiece W accidentally comes into contact with the nozzle.
以上説明した如く、本発明の砂抜き方法によれば、砂落
しハンマによる衝撃力と、エアノズルの吹き出しを併用
すると共に、エアノズルを鋳造品の接続口から若干隔て
て設置し、側方の接続口からタコ足の切断口へのエア流
により砂抜きを行ったので、鋳造品の隅々まで砂を取除
くことができ、しかも、強力なエア圧力やエアノズルの
制御装置を要せず、簡単且つ安価に実施することができ
る。As explained above, according to the sand removal method of the present invention, the impact force from the sand removal hammer and the blowing from the air nozzle are used in combination, the air nozzle is installed slightly away from the connection port of the casting, and the air nozzle is installed slightly away from the connection port on the side. Sand is removed by air flowing from the octopus foot to the cut end of the octopus leg, so sand can be removed from every corner of the casting, and it is simple and easy to remove without the need for strong air pressure or air nozzle control equipment. It can be implemented at low cost.
また、エアノズルを可撓性材料としたので、ノズルと鋳
造品との接触によってもトラブルが生じることがない。Furthermore, since the air nozzle is made of a flexible material, no trouble will occur due to contact between the nozzle and the cast product.
図面は本発明の実施例に係り、第１図は鋳造されたワー
クを加工する一連の自動加工ラインの始の説明図、第４
図の（ａ）から（ｄ）は砂抜き方法の動作順序を示す説
明図である。
Ａ・・・砂落し装置
Ｆ・・・フライス盤
Ｗ・・・ワーク
Ｄ・・・タコ足
Ｗｊ・・・ジャケット接続口
Ｗｇ・・・湯口
ｗｈ・・・タコ足切断口
Ｓ・・・中子砂
１・・・搬送装置
２・・・トランサ
・・・レール
・・・ガイド
・・・ワーク押さえ
・・・砂落としハンマ
０・・・エア吹出装置
Ｏａ、１０ｂ、 １０ｃ・エアノズル（
４デ
ー
（ａ）
（ｂ）
第４Ｈ
（Ｃ）
（ｄ）The drawings relate to embodiments of the present invention; FIG. 1 is an explanatory diagram of the beginning of a series of automatic processing lines for processing cast workpieces;
(a) to (d) of the figure are explanatory diagrams showing the operation sequence of the sand removal method. A... Sand removal device F... Milling machine W... Work D... Octopus foot Wj... Jacket connection port Wg... Sprue wh... Octopus foot cutting port S... Core sand 1...Transport device 2...Transer...Rail...Guide...Work holder...Sand removing hammer 0...Air blowing device Oa, 10b, 10c/Air nozzle (4 days (a) (b) 4th H (C) (d)
Claims (2)
た中子を使用する鋳造品の砂抜き方法において、 前記タコ足を切断した後、砂落しハンマで前記鋳造品に
振動を加えながら、前記接続口に所定の距離だけ離間し
たエアノズルより圧縮エアを注入し、前記接続口から適
量の砂を除去した後、残余の砂を前記タコ足の切断口か
ら吹き飛ばすことを特徴とする鋳造品の砂抜き方法。(1) In a method for removing sand from a cast product using a core with a connection port formed on the side surface of the octopus foot protruding from the outside, after cutting off the octopus foot, vibration is applied to the cast product using a sand removal hammer. The casting method is characterized in that compressed air is injected into the connection port from an air nozzle spaced apart by a predetermined distance, and after removing an appropriate amount of sand from the connection port, the remaining sand is blown away from the cut port of the octopus foot. How to remove sand from items.
する請求項（１）に記載の鋳造品の砂抜き方法。(2) The method for removing sand from a cast product according to claim (1), wherein the air nozzle is made of a flexible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9896390A JP2936278B2 (en) | 1990-04-13 | 1990-04-13 | Sand removal method for castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9896390A JP2936278B2 (en) | 1990-04-13 | 1990-04-13 | Sand removal method for castings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03297552A true JPH03297552A (en) | 1991-12-27 |
| JP2936278B2 JP2936278B2 (en) | 1999-08-23 |
Family
ID=14233726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9896390A Expired - Fee Related JP2936278B2 (en) | 1990-04-13 | 1990-04-13 | Sand removal method for castings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2936278B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012140508A1 (en) | 2011-04-13 | 2012-10-18 | Toyota Jidosha Kabushiki Kaisha | Casting core and production method of the casting core |
| CN106984796A (en) * | 2017-04-17 | 2017-07-28 | 新兴铸管股份有限公司 | The residual core method for cleaning of ductile iron pipe bellmouth |
| CN110918948A (en) * | 2019-12-20 | 2020-03-27 | 六安七茗道机电科技有限公司 | Be applied to fashioned sand mo (u) ld machine of cast member |
| CN111438334A (en) * | 2019-01-17 | 2020-07-24 | 新东工业株式会社 | Shakeout method and shakeout device |
-
1990
- 1990-04-13 JP JP9896390A patent/JP2936278B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012140508A1 (en) | 2011-04-13 | 2012-10-18 | Toyota Jidosha Kabushiki Kaisha | Casting core and production method of the casting core |
| CN106984796A (en) * | 2017-04-17 | 2017-07-28 | 新兴铸管股份有限公司 | The residual core method for cleaning of ductile iron pipe bellmouth |
| CN111438334A (en) * | 2019-01-17 | 2020-07-24 | 新东工业株式会社 | Shakeout method and shakeout device |
| CN111438334B (en) * | 2019-01-17 | 2024-06-11 | 新东工业株式会社 | Sand shakeout method and sand shakeout device |
| CN110918948A (en) * | 2019-12-20 | 2020-03-27 | 六安七茗道机电科技有限公司 | Be applied to fashioned sand mo (u) ld machine of cast member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2936278B2 (en) | 1999-08-23 |
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