JPH0341253B2 - - Google Patents
Info
- Publication number
- JPH0341253B2 JPH0341253B2 JP1081762A JP8176289A JPH0341253B2 JP H0341253 B2 JPH0341253 B2 JP H0341253B2 JP 1081762 A JP1081762 A JP 1081762A JP 8176289 A JP8176289 A JP 8176289A JP H0341253 B2 JPH0341253 B2 JP H0341253B2
- Authority
- JP
- Japan
- Prior art keywords
- blow head
- plate
- frame
- blow
- joint frame
- 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
- 238000005266 casting Methods 0.000 claims description 17
- 239000003110 molding sand Substances 0.000 claims description 10
- 239000004576 sand Substances 0.000 description 10
- 238000000465 moulding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Casting Devices For Molds (AREA)
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、鋳型造型装置の改良に関するもので
あり、詳しくは、鋳型硬度をほぼ均一にできる鋳
型造型装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an improvement in a mold making device, and more particularly, to a mold making device that can make mold hardness substantially uniform.
(従来の技術)
従来の鋳型造型装置として、第4図に示す様な
ものがある(例えば、「新版鋳造法」(昭和63、
3、31)社団法人鋳造技術普及協会、P.28〜30)。
このものは、固定されたブローヘツド21と、上
向きのスクイズシリンダ23に接続した模型定盤
22と、継ぎ枠26に接続した下向きの継ぎ枠用
シリンダ24とを具備し、ブローヘツド21には
ブロープレート25が取付けられると共に、模型
定盤22には継ぎ枠26および鋳枠27が載置さ
れている。(Prior art) As a conventional mold making device, there is one as shown in Fig. 4 (for example, the "new version casting method" (Showa 63,
3, 31) Foundry Technology Promotion Association, P.28-30).
This device is equipped with a fixed blow head 21, a model surface plate 22 connected to an upward squeeze cylinder 23, and a downward joint frame cylinder 24 connected to a joint frame 26. is attached, and a joint frame 26 and a casting flask 27 are placed on the model surface plate 22.
(発明が解決しようとする課題)
下降した継ぎ枠用シリンダ24と上昇した模型
定盤22とによつて継ぎ枠26および鋳枠27を
圧着した後、ブローヘツド21に2〜3Kg/mm2の
圧縮エアを供給すると、鋳物砂28はブロープレ
ート25から圧縮エアと共に、継ぎ枠26および
鋳枠27内に吹込まれる。次に、継ぎ枠用シリン
ダ24の油圧を解除し、スクイズシリンダ23を
さらに上昇させてブローヘツド21に対してスク
イズを行ない、鋳型硬度の均一化を図つている
が、吹込まれた鋳物砂28中から圧縮エアを十分
に抜気できないため砂密度が均一にならず、搬送
工程又は時間経過による鋳型変形や鋳込圧力によ
るハリが発生していた。そこで、本発明はかかる
問題点を解消するためになされたもので、鋳物砂
中の圧縮エアを速やかに抜気して容易に鋳物砂全
体を所要の硬度にできる鋳型造型装置を提供する
ものである。(Problem to be Solved by the Invention) After the joint frame 26 and the flask 27 are crimped by the lowered joint frame cylinder 24 and the raised model surface plate 22, the blow head 21 is compressed to 2 to 3 kg/mm 2 . When air is supplied, the molding sand 28 is blown from the blow plate 25 into the joint frame 26 and the casting flask 27 together with compressed air. Next, the hydraulic pressure of the joint frame cylinder 24 is released, and the squeeze cylinder 23 is further raised to squeeze the blow head 21 in order to equalize the hardness of the mold. Because the compressed air could not be sufficiently vented, the sand density was not uniform, resulting in mold deformation due to the conveyance process or the passage of time, and firmness due to casting pressure. Therefore, the present invention has been made to solve this problem, and provides a mold making device that can quickly remove the compressed air from the foundry sand and easily make the entire foundry sand to the required hardness. be.
(課題を解決するための手段)
本発明は、昇降自在なブローヘツドのブロープ
レートの外周に矩形状の枠体を設けると共に、ブ
ローヘツドの外側に排気孔を穿設した押圧板を固
設した鋳型造型装置である。(Means for Solving the Problems) The present invention provides a rectangular frame on the outer periphery of a blow plate of a blow head that can be raised and lowered, and a mold molding in which a press plate with an exhaust hole is fixed on the outside of the blow head. It is a device.
(作用)
継ぎ枠および鋳枠内に鋳物砂を吹込むと、鋳物
砂は矩形状の枠体と模型との隙間を移動して継ぎ
枠および鋳枠の隅々まで充填され、圧縮エアは鋳
枠、継ぎ枠および押圧板の排気孔を順に貫流して
大気中に排出される。次いで、ブローヘツドのブ
ロープレートを押圧板面まで上昇させると共に、
模型定盤を上昇させると、継ぎ枠および鋳枠近傍
の鋳物砂が高密度状態に充填される。(Function) When molding sand is blown into the joint frame and casting flask, the sand moves through the gap between the rectangular frame and the model, filling every corner of the joint frame and casting flask, and the compressed air flows through the casting flask. It sequentially flows through the exhaust holes of the frame, joint frame, and press plate and is discharged into the atmosphere. Next, raise the blow plate of the blow head to the pressing plate surface, and
When the model surface plate is raised, the molding sand near the joint frame and casting flask is filled in a high density state.
(実施例)
本発明の一実施例を第1〜3図に基づいて説明
する。第1〜2図に本発明に係る鋳型造型装置が
示され、昇降自在なブローヘツド1の上部には、
内部に鋳物砂(図示せず)を充満するためのサン
ドゲート2が取付けられると共に、ブローヘツド
1に圧縮エアを給排するための圧縮エア供給口3
および圧縮エア排出口4が設けられ、該下部には
ブローホール5を透設したブロープレート6およ
び矩形状の枠体7が設けられ、該枠体7はブロー
プレート6の外周に配設されている。(Example) An example of the present invention will be described based on FIGS. 1 to 3. A mold making apparatus according to the present invention is shown in FIGS. 1 and 2, and the upper part of the blow head 1 which can be raised and lowered is
A sand gate 2 for filling the inside with molding sand (not shown) is installed, and a compressed air supply port 3 for supplying and discharging compressed air to the blow head 1.
A blow plate 6 with a blow hole 5 therethrough and a rectangular frame body 7 are provided at the lower part thereof, and the frame body 7 is disposed around the outer periphery of the blow plate 6. There is.
ブローヘツド1の下方には昇降自在なスクイズ
シリンダ8が設けられ、スクイズシリンダ8には
模型定盤9が接続され、模型定盤9に継ぎ枠10
および鋳枠11が載置されている。 A squeeze cylinder 8 that can be raised and lowered is provided below the blow head 1. A model surface plate 9 is connected to the squeeze cylinder 8, and a joint frame 10 is connected to the model surface plate 9.
and a flask 11 are placed thereon.
ブローヘツド1の側方には4個の下向きの継ぎ
枠用シリンダ12が周設され、該シリンダ12は
継ぎ枠10の上面四隅に接続し、下降した該シリ
ンダ12と上昇した模型定盤9とによつて継ぎ枠
10および鋳枠11を圧着するように形成してい
る。ブローヘツド1の外側には矩形状の中空枠体
からなる押圧板13が固設され、該押圧板13に
は多数の排気孔14が穿設されると共に、押圧板
13の中空部には排出管15が接続され、さらに
ブローヘツド1に隣接して4個の上向きのブロー
ヘツド用シリンダ16が周設され、該シリンダ1
6はブローヘツド1および押圧板13に接続して
いる。 Four downward-facing joint frame cylinders 12 are installed around the sides of the blow head 1, and the cylinders 12 are connected to the four corners of the top surface of the joint frame 10, and the cylinders 12 are connected to the lowered cylinders 12 and the raised model surface plate 9. Therefore, the joint frame 10 and the casting flask 11 are formed so as to be crimped together. A pressure plate 13 made of a rectangular hollow frame is fixed on the outside of the blow head 1, and a large number of exhaust holes 14 are bored in the pressure plate 13, and a discharge pipe is provided in the hollow part of the pressure plate 13. 15 are connected to the blow head, and four upward blow head cylinders 16 are disposed adjacent to the blow head 1, and the cylinders 1
6 is connected to the blow head 1 and the press plate 13.
次に作動について述べる。 Next, we will discuss the operation.
第1図に示すように継ぎ枠用シリンダ12を下
方向に伸長作動すると共に、スクイズシリンダ8
を上方向に伸長作動して継ぎ枠10および鋳枠1
1を圧着させる。次いで、ブローヘツド用シリン
ダ16を下方向に収縮作動してブローヘツド1を
下降させた後、圧縮エア供給口3より圧縮エアを
ブローヘツド1内に供給すると、圧縮エアと共に
ブローヘツド1内の鋳物砂(図示せず)がブロー
プレート6から継ぎ枠10および鋳枠11内に吹
込まれる。該鋳物砂(図示せず)は矩形状の枠体
7と模型17との隙間を模型17に沿つて移動し
継ぎ枠10および鋳枠11の隅々まで充填され、
圧縮エアは鋳枠11、継ぎ枠10、押圧板13の
排気孔14および排出管15を順に貫流して大気
中に排出される。その後、ブローヘツド用シリン
ダ16を上方向に伸長作動してブローヘツド1を
上昇させ、ブロープレート6を押圧板13面まで
上昇させると共に、継ぎ枠用シリンダ12の油圧
を解除しスクイズシリンダ8を上方に伸長作動し
て継ぎ枠10および鋳枠11内に充填された鋳物
砂(図示せず)を模型定盤9を押圧すると、継ぎ
枠10および鋳枠11近傍の鋳物砂(図示せず)
が高密度状態に充填されると共に、鋳物砂(図示
せず)全体がさらに高密度状態になり、もつて鋳
物砂(図示せず)全体が所要の硬度となる。 As shown in FIG. 1, the joint frame cylinder 12 is extended downward, and the squeeze cylinder 8
is actuated to extend upward to open the joint frame 10 and the casting flask 1.
1 is crimped. Next, the blowhead cylinder 16 is contracted downward to lower the blowhead 1, and then compressed air is supplied into the blowhead 1 from the compressed air supply port 3. ) is blown from the blow plate 6 into the splicing flask 10 and the flask 11. The molding sand (not shown) moves through the gap between the rectangular frame 7 and the model 17 along the model 17, filling every corner of the joint frame 10 and the casting flask 11,
The compressed air passes through the casting flask 11, the joint frame 10, the exhaust hole 14 of the press plate 13, and the exhaust pipe 15 in this order, and is discharged into the atmosphere. Thereafter, the blow head cylinder 16 is extended upward to raise the blow head 1, and the blow plate 6 is raised to the pressure plate 13 surface, and the hydraulic pressure of the joint frame cylinder 12 is released and the squeeze cylinder 8 is extended upward. When the molding sand (not shown) filled in the splicing frame 10 and the flask 11 is pressed against the model surface plate 9, the molding sand (not shown) near the splicing frame 10 and the flask 11 is pressed.
is filled in a high-density state, and the entire foundry sand (not shown) becomes even more dense, so that the entire foundry sand (not shown) has the required hardness.
鋳砂物(図示せず)の硬化後、スクイズシリン
ダ8を下方向に収縮作動して模型定盤9を下降さ
せると共に、継ぎ枠用シリンダ12を上方向に収
縮作動させ継ぎ枠10の抜型を行ない、次いで造
型された鋳枠11を模型定盤9から取り出すと、
第3図に示す様な鋳型が得られる。しかる後、空
の別の鋳枠11を模型定盤9に載置し、サンドゲ
ート2からブローヘツド1内に鋳物砂(図示せ
ず)を充満する。 After the casting sand (not shown) hardens, the squeeze cylinder 8 is contracted downward to lower the model surface plate 9, and the joint frame cylinder 12 is contracted upward to remove the joint frame 10. Then, when the molded flask 11 is taken out from the model surface plate 9,
A mold as shown in FIG. 3 is obtained. Thereafter, another empty casting flask 11 is placed on the model surface plate 9, and the blow head 1 is filled with molding sand (not shown) through the sand gate 2.
(発明の効果)
本発明によれば、昇降自在なブローヘツドのブ
ロープレートの外周に矩形状の枠体を設けると共
に、ブローヘツドの外側に排気孔を穿設した押圧
板を固設したから、模型の形状が複雑な場合で
も、鋳物砂の充填が鋳枠全体に渡つて均一に行わ
れ、所要の硬度を有する鋳型を容易かつ確実に造
型できる。又、造型に際して大きなエネルギーを
必要とせず、騒音、振動を低減でき、造型作業の
容易化、迅速化が図れる。(Effects of the Invention) According to the present invention, a rectangular frame is provided on the outer periphery of the blow plate of the blow head that can be raised and lowered, and a pressure plate with an exhaust hole is fixed on the outside of the blow head. Even when the shape is complex, the entire flask is filled with molding sand uniformly, and a mold having the required hardness can be easily and reliably formed. Moreover, no large amount of energy is required during molding, noise and vibration can be reduced, and molding work can be facilitated and speeded up.
第1図は本発明の一実施例を示す一部破断正面
図、第2図は押圧板の要部断面図、第3図は造型
された鋳型を示す断面図、第4図は鋳物砂吹込み
状態を示す従来の鋳型造型装置の一部破断正面図
である。
1……ブローヘツド、6……ブロープレート、
7……枠体、13……押圧板、14……排気孔。
Fig. 1 is a partially cutaway front view showing one embodiment of the present invention, Fig. 2 is a sectional view of the main part of the pressing plate, Fig. 3 is a sectional view showing the mold that has been formed, and Fig. 4 is a sand blower for casting. FIG. 2 is a partially cutaway front view of a conventional mold making apparatus showing a crowded state. 1...Blow head, 6...Blow plate,
7...Frame body, 13...Press plate, 14...Exhaust hole.
Claims (1)
枠が載置されると共に、ブローヘツドの側方に設
けられた継ぎ枠用シリンダには継ぎ枠が接続さ
れ、ブローヘツドの下部側方で鋳枠および継ぎ枠
を圧着した後、鋳物砂をブローヘツドから継ぎ枠
および鋳枠内に吹込む鋳型造型装置において、昇
降自在なブローヘツドのブロープレートの外周に
矩形状の枠体を設けると共に、ブローヘツドの外
側に排気孔を穿設した押圧板を固設したことを特
徴とする鋳型造型装置。1. A casting flask is placed on a model surface plate connected to a squeeze cylinder, and a splicing frame is connected to a splicing frame cylinder provided on the side of the blow head. In a mold making device that blows molding sand from a blow head into a joint frame and a casting flask after the frame is crimped, a rectangular frame body is provided around the outer periphery of the blow plate of the blow head that can be raised and lowered, and an exhaust hole is provided on the outside of the blow head. A mold making device characterized by a fixed press plate having a perforation therein.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1081762A JPH02258143A (en) | 1989-03-31 | 1989-03-31 | Apparatus for making mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1081762A JPH02258143A (en) | 1989-03-31 | 1989-03-31 | Apparatus for making mold |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02258143A JPH02258143A (en) | 1990-10-18 |
JPH0341253B2 true JPH0341253B2 (en) | 1991-06-21 |
Family
ID=13755466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1081762A Granted JPH02258143A (en) | 1989-03-31 | 1989-03-31 | Apparatus for making mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02258143A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102644262B1 (en) * | 2022-04-29 | 2024-03-07 | 유광조 | Apparatus for molding core for casting |
-
1989
- 1989-03-31 JP JP1081762A patent/JPH02258143A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH02258143A (en) | 1990-10-18 |
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