JPH0341254B2 - - Google Patents
Info
- Publication number
- JPH0341254B2 JPH0341254B2 JP7317589A JP7317589A JPH0341254B2 JP H0341254 B2 JPH0341254 B2 JP H0341254B2 JP 7317589 A JP7317589 A JP 7317589A JP 7317589 A JP7317589 A JP 7317589A JP H0341254 B2 JPH0341254 B2 JP H0341254B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- plate
- joint frame
- blow
- blow head
- 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
Links
- 238000005266 casting Methods 0.000 claims description 18
- 239000003110 molding sand Substances 0.000 claims description 10
- 239000004576 sand Substances 0.000 description 10
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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、ブロープレートの外周に矩形状の枠
体を設けると共に、ブローヘツドと継ぎ枠との間
に排気孔を透設した昇降自在な押圧板を介設した
鋳型造型装置である。(Means for Solving the Problems) The present invention provides a rectangular frame around the outer periphery of the blow plate, and interposes a vertically movable press plate with an exhaust hole transparent between the blow head and the joint frame. This is a mold making 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、押圧板をブロープ
レート面まで下降させると、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, when the press plate is lowered to the blow plate surface, the molding sand in the vicinity of 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、固設されたブローヘツド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をブロー
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.
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 7 are provided at the lower part thereof, and the frame 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と継ぎ枠１０とに間には矩形
状枠体からなる押圧板１３が介設されると共に、
圧縮エアを大気中に排出するための矩形状〓間１
４が形成されている。さらに押圧板１３には多数
の排気孔１５が透設されると共に、４個の下向き
の押圧板用シリンダ１６が押圧板１３の上面四隅
に接続するようにブローヘツド１に隣接して周設
されている。 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 pressing plate 13 made of a rectangular frame is interposed between the blow head 1 and the joint frame 10, and
Rectangular shape for discharging compressed air into the atmosphere = space 1
4 is formed. Furthermore, a large number of exhaust holes 15 are transparently provided in the press plate 13, and four downward-facing press plate cylinders 16 are provided adjacent to the blow head 1 so as to be connected to the four corners of the upper surface of the press plate 13. There is.
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、押圧板用シリンダ１６
を上方向に収縮作動して押圧板１３を上昇させた
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１
７との〓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１５
および矩形状〓間１４を順に貫流して大気中に排
出される。その後、押圧板用シリンダ１６を下方
向に伸長作動して押圧板１３をブロープレート６
面まで下降させると、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。しかる後、継ぎ枠用シリンダ１２の油圧を
解除すると共に、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）を押圧すると、該鋳物砂
（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 pressure plate cylinder 16
After the press plate 13 is raised by compressing the press plate 13 upward, compressed air is supplied into the blow head 1 from the compressed air supply port 3. 6
It is blown into the splicing frame 10 and the casting flask 11.
The molding sand (not shown) has a rectangular frame 7 and a model 1.
Move along the model 17 between the joint frame 10 and 7.
The flask 11 is filled to every corner, and the compressed air is released from the exhaust holes 15 of the flask 11, joint frame 10, and press plate 13.
The water flows through the rectangular gap 14 in order and is discharged into the atmosphere. Thereafter, the pressure plate cylinder 16 is extended downward to move the pressure plate 13 to the blow plate 6.
When lowered to the surface, the connecting frame 10 and the casting flask 11
Nearby foundry sand (not shown) is packed in a dense state. Thereafter, when the hydraulic pressure of the joint frame cylinder 12 is released and the squeeze cylinder 8 is extended upward to press the molding sand (not shown) filled in the joint frame 10 and the casting flask 11, the casting The entire sand (not shown) becomes more dense, and the entire foundry sand (not shown) has the required hardness.
鋳物砂（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 molding sand (not shown) has hardened, the squeeze cylinder 8 is contracted downward to lower the model surface plate 9 to remove the joint frame 10, and then the molded flask 11 is removed from the model surface plate 9. When taken out, 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、ブロープレートの外周に矩形
状の枠体を設けると共に、ブローヘツドと継ぎ枠
との間に排気孔を透設した昇降自在な押圧板を介
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 around the outer periphery of the blow plate, and a movable press plate with an exhaust hole provided therebetween is interposed between the blow head and the joint frame. Even when the shape of the model is complex, the filling of molding sand is uniformly performed over the entire flask, 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、１０……継ぎ枠、１３……押圧板、
１５……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, 10... Joint frame, 13... Pressing plate,
15...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、ブ
ロープレートの外周に矩形状の枠体を設けると共
に、ブローヘツドと継ぎ枠との間に排気孔を透設
した昇降自在な押圧板を介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 the blow head into the joint frame and the casting flask after the frame is crimped, a rectangular frame body is provided around the outer periphery of the blow plate, and an exhaust hole is provided between the blow head and the joint frame. A mold making device characterized by having a transparent pressing plate that can be raised and lowered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7317589A JPH02251336A (en) | 1989-03-25 | 1989-03-25 | Apparatus for making mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7317589A JPH02251336A (en) | 1989-03-25 | 1989-03-25 | Apparatus for making mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02251336A JPH02251336A (en) | 1990-10-09 |
| JPH0341254B2 true JPH0341254B2 (en) | 1991-06-21 |
Family
ID=13510542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7317589A Granted JPH02251336A (en) | 1989-03-25 | 1989-03-25 | Apparatus for making mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02251336A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1177242A (en) * | 1997-09-05 | 1999-03-23 | Sintokogio Ltd | Molding device for mold |
-
1989
- 1989-03-25 JP JP7317589A patent/JPH02251336A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02251336A (en) | 1990-10-09 |
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