JPH05337605A - Method for supplying compressed air in molding apparatus - Google Patents
Method for supplying compressed air in molding apparatusInfo
- Publication number
- JPH05337605A JPH05337605A JP17941692A JP17941692A JPH05337605A JP H05337605 A JPH05337605 A JP H05337605A JP 17941692 A JP17941692 A JP 17941692A JP 17941692 A JP17941692 A JP 17941692A JP H05337605 A JPH05337605 A JP H05337605A
- Authority
- JP
- Japan
- Prior art keywords
- sand
- air
- molding
- blow
- molding sand
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/23—Compacting by gas pressure or vacuum
- B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鋳物砂を圧縮空気と共
に鋳枠内に吹込み充填し、その後必要に応じて充填され
た鋳物砂を圧縮して鋳型を造型するいわゆるブロ−スク
イズ造型装置における圧縮空気の供給方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called blow squeeze molding apparatus in which molding sand is blown and filled into a molding frame together with compressed air, and the molding sand is then compressed as necessary to mold a mold. The method of supplying compressed air in.
【０００２】[0002]
【従来技術と問題点】従来いわゆるブロ−スクイズ造型
装置としては実公平２−１４８３３号公報に開示されて
いるような装置が一般に使用されている。このような鋳
型造型装置では圧縮空気はスリット、あるいは小孔、網
目等を通してサンドマガジン内に供給され、サンドマガ
ジン内の鋳物砂を流動化させて鋳物砂溜り及びブロ−ヘ
ッド等を介して鋳枠内に吹込まれるものであるが鋳物砂
の流れをよくするために鋳物砂溜り及びブロ−ヘッドに
おける鋳物砂の流れ進行方向が変更される位置には補助
エヤ−が供給されるようになっている。2. Description of the Related Art Conventionally, as a so-called blow squeeze molding apparatus, an apparatus as disclosed in Japanese Utility Model Publication No. 2-14833 is generally used. In such a mold making apparatus, compressed air is supplied into a sand magazine through slits, small holes, meshes, etc., and fluidizes the molding sand in the sand magazine to form a molding flask through a molding sand pool and a blow head. In order to improve the flow of the foundry sand, the auxiliary air is supplied to the foundry sand reservoir and the position where the flow direction of the foundry sand is changed in order to improve the flow of the foundry sand. There is.
【０００３】このような補助エヤ−はその供給料が多け
れば多いほどこの部分における鋳物砂の停滞、付着等の
ない安定した鋳物砂の流れが得られるが鋳枠へ吹き込ま
れる鋳物砂に対する空気の量が多大になってしまい鋳枠
内への鋳物砂の充填が悪く不均一になる問題がある。逆
に補助エヤ−の供給量を絞ると鋳物砂の流れが停滞し、
ついには鋳物砂がこの部分に詰り鋳物砂の吹き込みがで
きなくなったり鋳枠内へ部分的にしか鋳物砂が充填され
ない等不安定なものになる問題があった。本発明は上記
の問題に鑑みて成されたもので補助エヤ−の供給量をで
きる限り少なくして十分な鋳物砂の吹き込み充填をなし
得る圧縮空気の供給方法を提供することを目的とするも
のである。The more the amount of the auxiliary air supplied, the more stable the flow of the foundry sand without stagnation or adhesion of the foundry sand in this part, but the air flow to the foundry sand blown into the flask. There is a problem that the amount becomes so large that the molding sand is poorly filled with the molding sand and becomes uneven. Conversely, if the supply of auxiliary air is reduced, the flow of foundry sand will become stagnant,
Finally, there was a problem that the molding sand was clogged in this portion, the molding sand could not be blown, and the molding sand was only partially filled with the molding sand, so that the molding sand became unstable. The present invention has been made in view of the above problems, and an object of the present invention is to provide a compressed air supply method capable of achieving sufficient blow-in filling of molding sand by reducing the supply amount of auxiliary air as much as possible. Is.
【０００４】[0004]
【問題解決のための手段】上記の目的を達成するために
本発明は、鋳物砂を圧縮空気と共に鋳枠内に吹込み充填
する鋳型造型装置における鋳物砂吹込み充填に際し、サ
ンドマガジンにメインエヤ−を所定時間連続して供給す
ると共に鋳物砂溜り、及びあるいはブロ−ヘッドにおけ
る鋳物砂の流れ進行方向が変更される各位置において補
助エヤ−を空気吹出孔を介して間歇的に吹き出せること
を特徴とするものである。In order to achieve the above object, the present invention provides a sand magazine with a main air at the time of blow-filling of molding sand in a mold molding apparatus in which molding sand is blow-filled with compressed air. Is continuously supplied for a predetermined period of time, and the auxiliary air can be intermittently blown out through the air blowing holes at the casting sand pool and / or at each position where the flow direction of the casting sand in the blow head is changed. It is what
【０００５】[0005]
【作用】本発明は上記のような解決手段を採用すること
により鋳物砂溜り、及びブロ−ヘッドにおける鋳物砂の
流れ進行方向が変更される各位置において補助エヤ−が
間歇的に吹き出してその部分に停滞あるいは付着する鋳
物砂を壁面から浮き上がらせてメインエヤ−の流れに乗
せて移送するようになり、間歇的に吹き出す極く少ない
エヤ−供給量により鋳物砂の流れを安定させて鋳枠へ充
填するようになる。According to the present invention, by adopting the above-mentioned solution means, the auxiliary air is intermittently blown off at each position where the flow direction of the flow of the casting sand in the casting sand pool and the blow head is changed. The molding sand that stagnates or adheres to the walls is lifted from the wall surface and is carried on the flow of the main air, and the flow of the molding sand is stabilized by a very small amount of air supply blown out intermittently to fill the molding frame. Come to do.
【０００６】[0006]
【実施例】以下本発明の実施例について図面に基づいて
詳しく説明する。１は図示されない支持手段により支持
されたマッチプレ−トでその上面には模型２．３が取り
付けられている。前記マッチプレ−ト１の上方及び下方
には図示されない昇降手段に上り昇降可能にされた上鋳
枠４と下鋳枠５とがそれぞれ配置されており、該上下鋳
枠４．５には鋳物砂を通さない空気抜き用のスリット
（図示せず）が多数設けてある。前記上鋳枠４の上方に
は、架台６に下向きに取り付けられたシリンダ７．７に
より昇降可能にされた上盛枠８が配設されている。前記
上盛枠８の更に上方には断面が逆Ｌ字型を成し、一端開
口が下向きに、他端開口（以下砂吹込み口と呼ぶ）９が
横向きにされた筒状の上枠用ブロ−ヘッド１０が配設さ
れており、該ブロ−ヘッド１０は図示しない昇降手段に
より昇降可能にされた上テ−ブル１１に固着、支持され
ている。Embodiments of the present invention will now be described in detail with reference to the drawings. Reference numeral 1 is a match plate supported by a supporting means (not shown), and a model 2.3 is attached to the upper surface thereof. Above and below the match plate 1, there are arranged an upper flask 4 and a lower flask 5 which can be moved up and down by a not-shown elevating means, and the upper and lower flasks 4.5 are provided with casting sand. A large number of slits (not shown) for venting air are provided. Above the upper casting frame 4, there is arranged an upper filling frame 8 which can be moved up and down by a cylinder 7.7 mounted downward on the pedestal 6. For a cylindrical upper frame having an inverted L-shaped cross section further above the upper frame 8 and having one end opening facing downward and the other end opening (hereinafter referred to as a sand blowing opening) 9 facing sideways. A blower head 10 is provided, and the blower head 10 is fixed and supported by an upper table 11 which can be moved up and down by an elevating means (not shown).
【０００７】前記上枠用ブロ−ヘッド１０の下向き開口
には複数個のブロ−ホ−ル１２を貫通穿設したブロ−プ
レ−ト１３が固着されており、該ブロ−プレ−ト１３の
外周面は前記上盛枠８の内周面を摺動可能にされてい
る。前記下鋳枠５の下方には架台１４に上向きに取り付
けられたシリンダ１５．１５により昇降可能にされた下
盛枠１６が配設されている。前記下盛枠１６の更に下方
には断面がＬ字型を成し一端開口が上向きに、他端開口
（以下砂吹込口と呼ぶ）１７が横向きにされた筒状の下
枠用ブロ−ヘッド１８が配設されており、該ブロ−ヘッ
ド１８は図示しない昇降手段により昇降可能にされた下
テ−ブル１９に固着している。前記下枠用ブロ−ヘッド
１８の上向きの開口には、複数個のブロ−ホ−ル２１を
貫通穿設したブロ−プレ−ト２２が固着されており該ブ
ロ−プレ−ト２２の外周面は前記下盛枠１６の内周面を
摺動可能にされている。前記上下鋳枠４．５の側方に
は、その上端に鋳物砂供給ホッパ２３を連接したブロ−
タンク３０が前記架台６．１４に支持固定されて立設さ
れている。A blow plate 13 having a plurality of blow holes 12 formed therethrough is fixed to the downward opening of the upper frame blow head 10, and the blow plate 13 is fixed to the blow plate 13. The outer peripheral surface is slidable on the inner peripheral surface of the upper frame 8. Below the lower casting frame 5, there is provided a lower filling frame 16 which can be moved up and down by a cylinder 15.15 mounted upward on the pedestal 14. A cylindrical lower frame blower head having an L-shaped cross section, one end opening facing upward, and the other end opening (hereinafter referred to as a sand blowing opening) 17 positioned laterally below the lower filling frame 16. 18 is provided and the blower head 18 is fixed to a lower table 19 which can be moved up and down by an elevating means (not shown). A blow plate 22 having a plurality of blow holes 21 formed therethrough is fixed to the upward opening of the lower frame blow head 18, and the outer peripheral surface of the blow plate 22 is fixed. Is slidable on the inner peripheral surface of the lower frame 16. A blower having a molding sand supply hopper 23 connected to the upper ends of the upper and lower flasks 4.5 at the sides thereof.
The tank 30 is erected while being supported and fixed to the mount 6.14.
【０００８】前記ブロ−タンク３０は上サンドマガジン
２４、上鋳物砂溜り２５、下サンドマガジン２６及び下
鋳物砂溜り２７がそれぞれ連通して成る１本の円筒体で
あり、その内部には該上サンドマガジン２４の上端から
下鋳物砂溜り２７の底面まで空洞が貫通して形成されて
いる。前記鋳物砂供給ホッパ２３と上サンドマガジン２
４との連接部にはスライドゲ−ド２８が配設されてお
り、該スライドゲ−ト２８は図示しないシリンダ−のピ
ストンロッド２９に連結して前記連接部の開口を開閉す
るようにされている。前記上サンドマガジン２４はその
側壁の上部と下部に給気口３１．３２を備えた外筒３３
とその表面に内部に通じる多数のスリットを備えた内筒
３４とから成っており両者間には所定の隙間が画成され
ている。The blow tank 30 is a cylindrical body in which an upper sand magazine 24, an upper casting sand pool 25, a lower sand magazine 26 and a lower casting sand pool 27 are in communication with each other. A cavity is formed so as to penetrate from the upper end of the sand magazine 24 to the bottom surface of the lower casting sand pool 27. The foundry sand supply hopper 23 and the upper sand magazine 2
A slide gate 28 is arranged at the connecting portion with the No. 4, and the slide gate 28 is connected to a piston rod 29 of a cylinder (not shown) to open and close the opening of the connecting portion. The upper sand magazine 24 has an outer cylinder 33 having air supply ports 31.32 on the upper and lower sides of its side wall.
And an inner cylinder 34 having a large number of slits communicating with the inside thereof, and a predetermined gap is defined between them.
【０００９】前記給気に３１．３２は配管３５、バルブ
Ａ、配管３６を介して圧縮空気源Ｐ１に通じている。な
お前記上サンドマガジン２４の下部給気に３２は該サン
ドマガジン２４の背丈が低い場合には削除してもよい。
前記上鋳物砂溜り２５は下側部に前記上枠用ブロ−ヘッ
ド１０の砂吹込口９に連通可能な砂吹出口３７を備える
と共に該砂吹出口３７に対する背部壁面には複数の空気
吹出孔３８が設けられている。該空気吹出孔３８のそれ
ぞれには配管３９、それぞれのバルブａ〜ｄ、配管４０
を介して圧縮空気源ｐ1に通じている。前記したサンド
マガジン２６は前記上サンドマガジン２４と同じ構成で
あり、給気口４１は側壁の上部にのみ設けられていて、
配管２４バルブＢ、配管４３を介して圧縮空気源Ｐ２に
通じている。前記下鋳物砂溜り２７は下側部に前記下枠
用ブロ−ヘッド１８の砂吹込口１７に連通可能な砂吹出
口４４を備えると共に該砂吹出口４４に対する背部位置
に置ける傾斜壁面には複数の空気吹出孔４５が設けられ
ている。該空気吹出孔４５は前記上鋳物砂溜り２５の空
気吹出孔３８と同様にそれぞれ配管４６、バルブｅ〜
ｈ、配管４７を介して圧縮空気源ｐ2に接続されてい
る。前記上鋳物砂溜り２５及び下鋳物砂溜り２７のそれ
ぞれの砂吹出口３７．４４の外側面には該砂吹出口３
７．４４と上下枠用ブロ−ヘッド１０．１８の砂吹入口
９．１７とを連通する透孔を穿設したシャッタ−４８．
４９が固着されていて、前記上下枠用ブロ−ヘッド１
０．１８の砂吹込口９．１７は該シャッタ−４８．４９
の表面に近接して上下動可能にされている。The air supply 31.32 communicates with the compressed air source P1 through the pipe 35, the valve A and the pipe 36. The lower air supply 32 of the upper sand magazine 24 may be deleted when the height of the sand magazine 24 is low.
The upper foundry sand pool 25 is provided with a sand blowout port 37 on the lower side thereof, which is capable of communicating with the sand blowoff port 9 of the blower head 10 for the upper frame, and a plurality of air blowout holes are formed on the wall surface of the back of the sand blowout port 37. 38 are provided. Each of the air outlets 38 has a pipe 39, respective valves a to d, and a pipe 40.
Through the compressed air source p 1 . The sand magazine 26 has the same structure as the upper sand magazine 24, and the air supply port 41 is provided only on the upper portion of the side wall.
It communicates with the compressed air source P2 through the pipe 24 valve B and the pipe 43. The lower casting sand puddle 27 is provided with a sand outlet 44 at the lower side thereof, which can communicate with the sand inlet 17 of the blower head 18 for the lower frame, and a plurality of inclined wall surfaces can be placed at a position behind the sand outlet 44. The air outlet 45 is provided. The air blow-out hole 45 is similar to the air blow-out hole 38 of the upper foundry sand basin 25, and a pipe 46 and valves e to e, respectively.
h, connected to a compressed air source p 2 via a pipe 47. On the outer surface of the sand outlet 37.44 of each of the upper casting sand pool 25 and the lower casting sand pool 27, the sand outlet 3 is formed.
7.44 and a shutter 48. which has a through hole for communicating the upper and lower frame blow heads 10.18 of the sand blower inlet 9.17.
The blower head 1 for the upper and lower frames is fixed with 49.
The sand blow port 9.17 of 0.18 is the shutter-48.49.
It can move up and down close to the surface.
【００１０】前記上枠用ブロ−ヘッド１０には砂吹込口
９と対向する壁面とブロ−プレ−ト１３と対向する壁面
とにそれぞれ複数の空気吹出孔５０．５１が設けられて
いて該空気吹出孔５０は配管５２、バルブｌ．ｍ、配管
５３を介して圧縮空気源ｐ4に、また空気吹出孔５１は
配管５６、バルブｉ〜ｋ、配管５７を介して圧縮空気源
ｐ3に接続されている。前記下枠用ブロ−ヘッド１８に
も前記上枠用ブロ−ヘツド１０と同様にそれぞれ複数の
空気吹出孔５８．５９が設けられており、該空気吹出口
は配管６０、バルブｑ．ｒ配管６１を介して圧縮空気源
ｐ6に、また空気吹出孔５９は配管６２、バルブｎ〜
ｐ、配管６３を介して圧縮空気源ｐ5に接続されてい
る。尚前記の説明からわかるように各空気吹出孔３８．
４５．５０．５１．５８．５９は、鋳物砂が鋳物砂溜り
２５．２７及び上下枠用ブロ−ヘッド１０．１８におい
てその流れ進行方向を変更される部分に設けられている
のである。The upper frame blow head 10 is provided with a plurality of air outlet holes 50.51 on the wall surface facing the sand blowing port 9 and the wall surface facing the blow plate 13, respectively. The blowout hole 50 includes a pipe 52, a valve l. m, a compressed air source p 4 via a pipe 53, and the air outlet 51 is connected to a compressed air source p 3 via a pipe 56, valves i to k, and a pipe 57. Similarly to the upper frame blow head 10, the lower frame blow head 18 is also provided with a plurality of air outlets 58.59, and the air outlets are the pipe 60, the valve q. The compressed air source p 6 is supplied via the r pipe 61, and the air outlet hole 59 is connected to the pipe 62 and the valves n to.
p, and is connected to a compressed air source p 5 via a pipe 63. As can be seen from the above description, each air outlet 38.
45.50.51.58.59 is provided in a portion where the casting sand is changed in the casting sand pool 25.27 and the upper and lower frame blow heads 10.18.
【００１１】各空気吹出孔の詳細について図２のイ部拡
大詳細図である図３により説明する。下鋳物砂溜り２７
に貫通するノズル６５には複数のスリットを持ったベン
トプラグ６６が設けられており該ベントプラグ６６を包
囲して空気溜め６７が形成され該空気溜め６７は空気入
口６８を設けた蓋部材６９で閉じられ空気入口６８は前
記配管４６に連通されている。また前記バルブＡ．Ｂ、
ａ〜ｒ、は電気的な信号でオン、オフするようになって
いて該バルブへの信号は装置本体の動きを制御するシ−
ケンサ−からタイミングをもらい作動するマイコンによ
って制御され、このマイコンはディスプレ−、キ−ボ−
ドを備え各バルブの作動タイミングを任意にコントロ−
ルできるようになっている。Details of the air outlets will be described with reference to FIG. 3, which is an enlarged detailed view of a portion of FIG. Lower casting sand puddle 27
A vent plug 66 having a plurality of slits is provided in the nozzle 65 penetrating to the inside. An air reservoir 67 is formed surrounding the vent plug 66. The air reservoir 67 is a lid member 69 provided with an air inlet 68. The air inlet 68 is closed and communicates with the pipe 46. Further, the valve A. B,
The signals a to r are turned on and off by an electric signal, and the signal to the valve controls the movement of the main body of the apparatus.
It is controlled by a microcomputer that operates in response to a timing from a Kenser, and this microcomputer is a display and a keyboard.
Equipped with a switch to control the timing of each valve
You can do this.
【００１２】このように構成された鋳型造型装置を作動
させるには図１、図２の状態で鋳物砂を供給ホッパ−２
３を介してブロ−タンク３０の給気口３１のレベルまで
投入してスライドゲ−ト２８を閉じる。このような状態
になったことを鋳型造型装置制御用シ−ケンサ−から信
号をもらいマイコンはディスプレ−、キ−ボ−ドを用い
て設計されたタイミング（例えば図３に示すタイミン
グ）でバルブＡ、Ｂ，ａ〜ｒを開動作させる。この時メ
インエヤ−を供給するバルブＡ、Ｂは同時に開となり一
定時間保持されるが補助エヤ−を供給するバルブａ〜
ｄ、ｅ〜ｈ、ｉ〜ｍ、ｎ〜ｒは一団をなしてそれぞれ間
歇的に開動作をする。即ちメインエヤ−のバルブＡ，Ｂ
が開となり圧縮空気源Ｐ１Ｐ２から上下サンドマガジン
２４．２６内に圧縮空気が導入され、エヤ−の流れに伴
ってブロ−タンク３０内に投入された鋳物砂が鋳物砂溜
り２５．２７及びブロ−ヘッド１０．１８を介して上下
鋳枠４．５内に吹き込まれる。この間にバルブａ〜ｒの
間歇的な開動作により鋳物砂がその流れ進行方向を変更
させる位置に設けられた空気吹出孔３８．４５．５０．
５１．５８．５９から補助エヤ−が間歇的に吹き出され
てこの部分に停滞あるいは付着する鋳物砂を浮き上がら
せてメインエヤ−の流れに乗せるようになる。In order to operate the mold making apparatus having the above-described structure, the molding sand is supplied in the state shown in FIGS.
3, the slide gate 28 is closed by closing the blower tank 30 up to the level of the air supply port 31. Upon receiving a signal from the sequencer for controlling the molding machine of the mold, the microcomputer makes a valve A at a timing (for example, the timing shown in FIG. 3) designed by using the display and the keyboard. , B, a to r are opened. At this time, the valves A and B for supplying the main air are simultaneously opened and maintained for a certain time, but the valves a to supplying the auxiliary air are
The d, e to h, i to m, and n to r form a group and intermittently perform the opening operation. That is, valves A and B of the main air
Is opened, compressed air is introduced into the upper and lower sand magazines 24.26 from the compressed air source P1P2, and the molding sand put into the blow tank 30 along with the flow of the air causes the molding sand reservoir 25.27 and the blow molding sand to flow. It is blown into the upper and lower flasks 4.5 through the head 10.18. During this time, air blowing holes 38.45.50. Provided at positions where the molding sand changes its flow advancing direction by the intermittent opening operation of the valves a to r.
From 51.58.59, the auxiliary air is intermittently blown out, and the molding sand that stagnates or adheres to this portion is lifted up and put on the flow of the main air.
【００１３】したがって鋳物砂は流れ進行方向を変更さ
れて停滞あるいは付着を起こしやすい位置において空気
供給量の極めて少ない間歇的吹出しによりメインエヤ−
の流れに確実に乗せられて砂詰り等の不都合を起こすこ
となく均一に上下鋳枠４．５に吹き込まれるようにな
る。上記鋳物砂吹込み後は通常の作業がなされて鋳物砂
のスクイズ及び鋳型の離型等が成され造型鋳型が取り出
されて再び図１．図２の状態にされる。尚上記実施例に
おいては空気吹出孔３８．４５．５０．５１．５８．５
９はそれぞれの位置で複数設けられ、それに応じてバル
ブａ〜ｒもそれぞれ設けられているが同じ位置の複数の
空気吹出孔に対して１つのバルブを（配管４０．４７．
５３．５７．６１．６３に取付け）使用するようにして
もよい。この場合同じ位置の複数の空気吹出孔からは同
時に補助エヤ−が吹き出されるが各位置間で時差をおい
て間歇的に吹き出せることにより補助エヤ−の供給量は
実施例のものと同様に極めて少なくなる。Therefore, the molding sand is blown off by a main air by intermittent blowing with a very small air supply amount at a position where the flow advancing direction is changed and stagnation or adhesion easily occurs.
Is reliably blown to the upper and lower casting molds 4.5 without causing problems such as sand clogging. After the injection of the molding sand, the usual operations are performed, the molding sand is squeezed, the mold is released, and the molding mold is taken out again. The state shown in FIG. 2 is set. It should be noted that in the above embodiment, the air outlet holes 38.45.50.51.58.5.
9 are provided at each position, and valves a to r are also provided accordingly, but one valve (pipe 40.47.
53.57.61.63) may be used. In this case, the auxiliary air is simultaneously blown out from a plurality of air blowing holes at the same position, but the auxiliary air is supplied in the same amount as in the embodiment by intermittently blowing out with a time difference between each position. Extremely low.
【００１４】[0014]
【発明の効果】本発明は上記の説明から明らかなように
鋳物砂溜り、及びブロ−ヘッドにおける鋳物砂の流れ進
行方向が変更される各位置において供給される補助エヤ
−を間歇的に吹き出させるようにしたから、極めて少な
い補助エヤ−の供給により鋳物砂の停滞あるいは付着を
解除することができるようになり、ひいては鋳枠への鋳
物砂の充填を均一にかつ十分なものにすることができる
ようになりその効果は著大である。As is apparent from the above description, the present invention intermittently blows out the casting sand reservoir and the auxiliary air supplied at each position where the flow direction of the casting sand in the blow head is changed. By doing so, it becomes possible to release the stagnation or adhesion of the foundry sand by supplying an extremely small amount of auxiliary air, and thus it is possible to uniformly and sufficiently fill the foundry sand with the foundry sand. As a result, the effect is remarkable.
【図１】本発明の実施例を示す全体図である。FIG. 1 is an overall view showing an embodiment of the present invention.
【図２】本発明実施例の装置本体部を示す拡大図であ
る。FIG. 2 is an enlarged view showing an apparatus main body portion according to the embodiment of the present invention.
【図３】図２におけるイ部拡大詳細図である。FIG. 3 is an enlarged detailed view of a portion A in FIG.
【図４】各バルブと開閉時間の関係を示すグラフであ
る。FIG. 4 is a graph showing a relationship between each valve and opening / closing time.
１０ 上枠用ブロ−ヘッド １８ 下枠用ブロ−ヘッド ２５ 上鋳枠砂溜り ２７ 下鋳枠砂溜り ３１ ４１ 供給口 ３８ ４５ ５０ ５１ ５８ ５９ 空気
吹出孔 Ａ Ｂ ａ〜ｒ バルブ10 Blow head for upper frame 18 Blow head for lower frame 25 Upper flask sand reservoir 27 Lower flask sand reservoir 31 41 Supply port 38 45 50 51 51 58 59 Air outlet hole A B a to r valve
Claims (2)
充填するに際し、サンドマガジンにメインエヤ−を所定
時間連続して供給すると共に、鋳物砂溜り、及びあるい
はブロ−ヘッドにおける鋳物砂の流れ進行方向が変更さ
れる各位置において補助エヤ−を空気吹出孔を介して間
歇的に吹き出させることを特徴とする鋳型造型装置にお
ける圧縮空気供給方法。1. A main air is continuously supplied to a sand magazine for a predetermined time when the molding sand is blown and filled with compressed air into the molding flask, and the molding sand flows in the molding sand reservoir and / or the blow head. A method for supplying compressed air in a mold making apparatus, characterized in that an auxiliary air is intermittently blown out through air blowing holes at each position where the traveling direction is changed.
各位置の空気吹出孔を複数設けると共に該複数の空気吹
出孔からのエヤ−吹出しを時差をつけてかつ間歇的に吹
出させることを特徴とする請求項１記載の鋳型造型装置
における圧縮空気供給方法。2. A plurality of air outlets are provided at respective positions where the flow direction of the foundry sand is changed, and air outlets from the plurality of air outlets are staggered and intermittently ejected. The compressed air supply method in the mold making apparatus according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4179416A JP2845390B2 (en) | 1992-06-12 | 1992-06-12 | Compressed air supply method in mold making apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4179416A JP2845390B2 (en) | 1992-06-12 | 1992-06-12 | Compressed air supply method in mold making apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05337605A true JPH05337605A (en) | 1993-12-21 |
| JP2845390B2 JP2845390B2 (en) | 1999-01-13 |
Family
ID=16065488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4179416A Expired - Fee Related JP2845390B2 (en) | 1992-06-12 | 1992-06-12 | Compressed air supply method in mold making apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2845390B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0779118A1 (en) | 1995-12-15 | 1997-06-18 | Sintokogio, Ltd. | Blow-squeeze molding machine |
| WO2011111241A1 (en) * | 2010-03-11 | 2011-09-15 | 新東工業株式会社 | Casting mold molding machine |
| CN104399905A (en) * | 2014-12-19 | 2015-03-11 | 济南万兴农用机械科技有限公司 | Pre-coated sand shooting type core shooter |
-
1992
- 1992-06-12 JP JP4179416A patent/JP2845390B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0779118A1 (en) | 1995-12-15 | 1997-06-18 | Sintokogio, Ltd. | Blow-squeeze molding machine |
| US5785111A (en) * | 1995-12-15 | 1998-07-28 | Sintokogio, Ltd. | Blow-squeeze molding machine |
| WO2011111241A1 (en) * | 2010-03-11 | 2011-09-15 | 新東工業株式会社 | Casting mold molding machine |
| EP2433725A1 (en) * | 2010-03-11 | 2012-03-28 | Sintokogio, Ltd. | Casting mold molding machine |
| EP2433725A4 (en) * | 2010-03-11 | 2012-04-18 | Sintokogio Ltd | Casting mold molding machine |
| KR20120138615A (en) * | 2010-03-11 | 2012-12-26 | 신토고교 가부시키가이샤 | Mold forming apparatus |
| JPWO2011111241A1 (en) * | 2010-03-11 | 2013-06-27 | 新東工業株式会社 | Mold making machine |
| US8701744B2 (en) | 2010-03-11 | 2014-04-22 | Sintokogio, Ltd. | Molding machine |
| JP5585452B2 (en) * | 2010-03-11 | 2014-09-10 | 新東工業株式会社 | Mold making machine |
| EA021764B1 (en) * | 2010-03-11 | 2015-08-31 | Синтокогио, Лтд. | Molding machine |
| CN104399905A (en) * | 2014-12-19 | 2015-03-11 | 济南万兴农用机械科技有限公司 | Pre-coated sand shooting type core shooter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2845390B2 (en) | 1999-01-13 |
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