JPS58179538A - Pattern device - Google Patents
Pattern deviceInfo
- Publication number
- JPS58179538A JPS58179538A JP6220582A JP6220582A JPS58179538A JP S58179538 A JPS58179538 A JP S58179538A JP 6220582 A JP6220582 A JP 6220582A JP 6220582 A JP6220582 A JP 6220582A JP S58179538 A JPS58179538 A JP S58179538A
- Authority
- JP
- Japan
- Prior art keywords
- recess
- molding sand
- sand
- model
- compressed air
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は鋳物砂を圧縮空気と共に吹込んで鋳It;i1
.をノ告+1.IJするための模型装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention involves blowing molding sand together with compressed air to cast
.. Notice +1. This invention relates to a model device for IJ.
般に吹込み造型用の模型には圧縮空気を誘導1フ1出す
るためにベントホールが設けられており、このベントホ
ールの設置により、鋳物砂が模型の隅々まで均等に充填
される。Generally, a model for blow molding is provided with a vent hole for guiding and venting compressed air, and by providing this vent hole, every corner of the model is evenly filled with molding sand.
しかし形状が複雑な模型を使用して鋳型を造型する場合
、圧縮空気は流気しやすい部分に片寄りて流れるように
なり、全部のベントホールに対し均等には流れなくなり
、鋳物砂の充填が不均一となり、造型された鋳型に硬度
ムラができる。However, when molding a mold using a model with a complex shape, the compressed air tends to flow toward the areas where air flows more easily, and it does not flow evenly to all vent holes, making it difficult to fill the molding sand. This results in uneven hardness in the mold.
例えば第3図に示すようなひょうたん型の模型四部のほ
ぼ全面にベントホールを設けた模型をブローイングマシ
ンにセットして圧縮空気と共に生型砂を模型四部へ吹き
込んで鋳型を造型し、この本発明はこのような問題を解
決する目的のもとになされたものである。For example, a gourd-shaped model as shown in FIG. 3, in which vent holes are provided on almost the entire surface of the four parts, is set in a blowing machine, and green molding sand is blown into the four parts along with compressed air to create a mold. This was done with the purpose of solving such problems.
以下実施例に基づき説明すると、(D (1)は垂直割
模型を構成する半割模型板であって、型合せ而には模型
四部(2〕が形成されている。該半割模型板(1)にお
ける模型四部(2)の背部には仕切板(3)により上下
に仕切られた中空室(4) (5)が構成されていて、
該中空室(4) (5)は多数のベントホール(6)を
介して模型四部(2)の表面に連通されている。また該
中空室(4) (5)は排気口(7)(8)および可撓
性の導管(9) (10)を介して排気弁(11) (
12)に連Jされている。また前記ベントホール(6)
の模型四部(2)側聞[]端にはベントプラグ(13)
が(jら込まれている。このように構成されたものはj
)1.気弁(11) (11)を閉じ、排気弁(12)
(12)を開いた状態にして図示されないブローイン
グマシンにセットして圧縮空気と共に生型砂を模型四部
(2) (2)で構成される空洞部ヘブローイングし、
圧縮空気の供給を続けながら排気弁(11) (11)
を開き、排気弁(12)(12)を閉じる操作をして鋳
型を造jJ、4Jする。このようにして造型された鋳型
の各部分の硬度は第3図(ロ)に示す通りであり、全体
としてほぼ均一で高い硬度になっている。このことは4
J1気か(II)(11)が閉しられた状態で、鋳物砂
がブローイングされると圧縮空気が模型凹部(2)の上
部位11′tに設けられたベントホール(6)の方向へ
流れるため鋳物砂もこれに伴って移動し、模型四部(2
)のド部位ii′Jiの砂充填が1−分に行われろ。そ
の後、Jut気弁(11) (11)が開かれ排気弁(
12) (12)が閉しられることによって圧縮空気の
流れが変更され、これに伴って模型四部(2)の上部位
置にある鋳物砂が移動し充填密度を高めるものとみられ
る。To explain the following based on an example, (D (1) is a half-split model plate constituting a vertically split model, and four parts (2) of the model are formed in the mold assembly. The half-split model plate ( The back of the four parts (2) of the model in 1) has hollow chambers (4) and (5) partitioned into upper and lower parts by partition plates (3).
The hollow chambers (4) and (5) are communicated with the surface of the fourth part of the model (2) through a number of vent holes (6). The hollow chamber (4) (5) is also connected to the exhaust valve (11) (
12). Also, the vent hole (6)
Four parts of the model (2) Vent plugs (13) at the side [] ends
is (j).The structure constructed in this way is j
)1. Close the air valve (11) (11) and open the exhaust valve (12).
(12) is set in an open blowing machine (not shown) and blows green mold sand together with compressed air into the cavity formed by the four parts (2) (2) of the model;
Exhaust valve (11) (11) while continuing to supply compressed air
, and close the exhaust valves (12) (12) to make molds. The hardness of each part of the mold thus formed is as shown in FIG. 3(B), and the hardness is substantially uniform and high as a whole. This is 4
When the molding sand is blown with J1 air (II) (11) closed, the compressed air flows toward the vent hole (6) provided in the upper part 11't of the model recess (2). As it flows, the foundry sand also moves with it, causing the four parts of the model (2
) is filled with sand in 1 minute. After that, the Jut air valve (11) (11) is opened and the exhaust valve (
12) By closing (12), the flow of compressed air is changed, and as a result, the molding sand located at the upper part of the model's fourth part (2) moves, increasing the packing density.
尚実施例では排気弁(11) (12)を大気に連通さ
せているが真空源に連通させて鋳物砂の充填密度をさら
に高めるようにしてもよい。In the embodiment, the exhaust valves (11) and (12) are communicated with the atmosphere, but they may be communicated with a vacuum source to further increase the filling density of the foundry sand.
本発明は第1図及び第2図に示すように半割模型板(1
)の模型凹部(2)背部を複数の中空室(4)(5)に
槽成し、核中空室(4) (5)とN4型凹部(2)と
をベントプラグ(13)付ベントホール(6)により連
通ずると共に該中空室(4) (5)を排気弁(11)
(i2)を介して大気に連通した構造としたので、鋳物
砂の吹込みの途中において排気弁(11) (12)を
開閉制j叩することによって砂充填密度が高い鋳型を造
型することが可能番となる。The present invention utilizes a half-split model plate (1
) The back of the model concave part (2) is formed into a plurality of hollow chambers (4) and (5), and the nuclear hollow chambers (4) and (5) and the N4 type concave part (2) are connected to a vent hole with a vent plug (13). (6) communicates with the hollow chambers (4) and (5) through the exhaust valve (11).
Since the structure is connected to the atmosphere through (i2), it is possible to mold a mold with a high sand filling density by opening and closing the exhaust valves (11) and (12) during the injection of molding sand. This will be the possible number.
図は本発明の実施例を示すものにして第1図は一部切欠
き平面図、第2図は@1図におげろA−A矢視図、第3
図は鋳型の硬度測定結果を示す説明図である。
(1):半割模型板 (2):模型凹部(4) (
Is) :中空室 (6):ベントホール(11)
(12) : rJF気弁○■■○
歿浪は汀・
(イ)
0 く70 ≧70
(ロ)The figures show an embodiment of the present invention, and Fig. 1 is a partially cutaway plan view, Fig. 2 is a view taken along the arrow A-A in Fig. @1, and Fig. 3 is a partially cutaway plan view.
The figure is an explanatory diagram showing the hardness measurement results of the mold. (1): Half-split model plate (2): Model recess (4) (
Is): Hollow chamber (6): Vent hole (11)
(12) : rJF air valve ○■■○ The wave is tidy (a) 0 ku70 ≧70 (b)
Claims (1)
を複数個の中空室(4) (5)に構成し、該中空室(
4)(5)と曲記模型四部(2)の表面とを、ベントプ
ラグ(13)付ヘントホール(6)を介して連通ずると
共に該中空室(4) (5)を排気弁(11) (12
)を介して大気又は真空源に連通したことを特徴とする
模型袋)111”。゛I' - The back of the model recess (2) of the split model plate (1) (1) is configured into a plurality of hollow chambers (4) (5), and the hollow chambers (
4) (5) and the surface of the fourth part (2) of the musical model are communicated via a hent hole (6) with a vent plug (13), and the hollow chamber (4) (5) is connected to an exhaust valve (11) ( 12
) 111'', characterized in that it communicates with the atmosphere or a vacuum source through a
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6220582A JPS58179538A (en) | 1982-04-13 | 1982-04-13 | Pattern device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6220582A JPS58179538A (en) | 1982-04-13 | 1982-04-13 | Pattern device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58179538A true JPS58179538A (en) | 1983-10-20 |
Family
ID=13193404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6220582A Pending JPS58179538A (en) | 1982-04-13 | 1982-04-13 | Pattern device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58179538A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001060549A1 (en) * | 2000-02-17 | 2001-08-23 | Sintokogio, Ltd. | Method and device for filling casting sand |
-
1982
- 1982-04-13 JP JP6220582A patent/JPS58179538A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001060549A1 (en) * | 2000-02-17 | 2001-08-23 | Sintokogio, Ltd. | Method and device for filling casting sand |
KR100824122B1 (en) * | 2000-02-17 | 2008-04-21 | 신토고교 가부시키가이샤 | An apparatus for introducing and compacting molding sand, and a method for blowing and introducing molding sand |
KR100837464B1 (en) | 2000-02-17 | 2008-06-12 | 신토고교 가부시키가이샤 | An apparatus for introducing and compacting molding sand, and a method for blowing and introducing molding sand |
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