JPH0281609A - Defoaming method of casting mold - Google Patents
Defoaming method of casting moldInfo
- Publication number
- JPH0281609A JPH0281609A JP23457988A JP23457988A JPH0281609A JP H0281609 A JPH0281609 A JP H0281609A JP 23457988 A JP23457988 A JP 23457988A JP 23457988 A JP23457988 A JP 23457988A JP H0281609 A JPH0281609 A JP H0281609A
- Authority
- JP
- Japan
- Prior art keywords
- frame
- casting mold
- intermediate layer
- defoaming
- casting
- 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
- 238000005266 casting Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000011148 porous material Substances 0.000 claims abstract description 8
- 239000000919 ceramic Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000002023 wood Substances 0.000 abstract description 2
- 239000006260 foam Substances 0.000 abstract 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007872 degassing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は注型品の品質を高めた多品種少量生産用簡易タ
イプの注型型の脱泡方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a defoaming method for a simple casting mold for high-mix, low-volume production that improves the quality of cast products.
（従来の技術）
従来の注型型製作手順は、第２図■〜■に示すようにし
て行われている。(Prior Art) A conventional casting mold manufacturing procedure is carried out as shown in FIGS.
先ず、第２図■は型材となる注型材７′の製作過程を示
すものであるが、主剤Ａと硬化材Ｂを計量し、容器（Ｃ
）内にて混合・撹拌する際に、空気中であるため、この
作業工程中に注型材７′中に空気が気泡？’ａとなって
混入する。また、主剤Ａ、硬化剤Ｂ共、元々微細な気泡
が混っている。First, Fig. 2 (■) shows the manufacturing process of the casting material 7' that will become the mold material.
) When mixing and stirring in the casting material 7', air bubbles may form in the casting material 7' during this work process. It becomes 'a' and gets mixed in. Furthermore, both the base agent A and the curing agent B originally contain fine air bubbles.
次に第２図■に示すように、基準板５′上に設置したモ
デル６′と枠ｒとの中に上記過程で作った注型網７′を
注入するがこの時点でも気泡？’ａが混入する。Next, as shown in FIG. 2 (■), the casting net 7' made in the above process is poured into the model 6' and the frame r placed on the reference plate 5', but are there still bubbles at this point? 'a is mixed in.
そこで、第２図■に示すように、注型装置内で真空にし
て脱泡している。Therefore, as shown in FIG. 2 (2), the casting device is evacuated to remove bubbles.
次に′ｌ１４２図■に示すように真空中で加圧し注型型
７′の密度を上げている。Next, as shown in Figure 142, pressure is applied in a vacuum to increase the density of the casting mold 7'.
その他、第２図■は、モータＭによってファンＦを回し
つつヒータＨによって注型型７′を加熱し半硬化してい
る状態、第２図■は、例えばエポキシ樹脂りを充填し、
その部分に設けたネジの如き部材Ｅを、例えばベンチＦ
で把持して下方に引き抜いて離型している状態を示す。In addition, Fig. 2 (■) shows a state in which the casting mold 7' is heated and semi-cured by a heater H while a fan F is rotated by a motor M, and Fig. 2 (2) shows a state in which the casting mold 7' is semi-hardened by, for example, being filled with epoxy resin.
For example, attach a member E such as a screw provided in that part to the bench F.
This shows the state where the mold is released by gripping it and pulling it downward.
しかる後、注型型は硬化されるものである。Thereafter, the casting mold is hardened.
（発明が解決しようとする課題）
しかしながら、上記の方法では、先ず、第２図■に示し
た工程において、
■ 脱泡は注型型７′の上部のみの一方向から行うだけ
なので、脱泡に多くの時間を要する。(Problem to be Solved by the Invention) However, in the above method, first, in the step shown in Figure 2 (■), defoaming is performed only from one direction from the upper part of the casting mold 7'; It takes a lot of time.
０） モデル６′の形状によって気泡が抜けきらない部
分が出ることがある。0) Depending on the shape of the model 6', there may be parts where the bubbles cannot be completely removed.
という課題をを有している。There is a problem with this.
また、第２図■に示す工程において、加圧と脱泡の工程
が別になるため、歩溜りが悪いという課題を存していた
。Furthermore, in the process shown in FIG. 2, the pressurization and defoaming processes are separate, resulting in a problem of poor yield.
本発明は上記のことに鑑み提案されたもので、その目的
とするところは、注型型内の気泡を効率的に抜き、気泡
の混らない強度の高い注型型を提供することにある。The present invention has been proposed in view of the above, and its purpose is to efficiently remove air bubbles from the casting mold and provide a strong casting mold that is free from air bubbles. .
（課題を解決するための手段）
本発明では、真空中で基準板に設置したモデル上に注型
材を注型してなる注型型であって、前記モデルの周囲に
枠を設け、かつこの最外周に設けられた枠は脱泡用の複
数の穴が形成され、この枠の内側に多孔性材料からなる
中間層を設けるとともにその内側にフィルターとしての
内層を設け、前記注型型を加圧しつつその脱泡を行うこ
とにより、上記目的を達成している。(Means for Solving the Problems) The present invention provides a casting mold in which a casting material is cast onto a model placed on a reference plate in a vacuum, a frame is provided around the model, and a frame is provided around the model. A frame provided on the outermost periphery has a plurality of holes for defoaming, an intermediate layer made of a porous material is provided inside this frame, and an inner layer as a filter is provided inside the frame, and the casting mold is processed. The above objective is achieved by defoaming while pressing.
（作 用）
本発明では注型型の周囲に脱泡用の穴を有する枠や多孔
質の中間層を設け、注型型を加圧しつつその周囲から脱
泡するようにしたので、注型型内の気泡を速みやかに抜
くことができ、かつ強度の高い注型型としている。(Function) In the present invention, a frame having defoaming holes and a porous intermediate layer are provided around the casting mold, and the casting mold is pressurized while defoaming from the surrounding area. The casting mold has high strength and can quickly remove air bubbles inside the mold.
（実施例）
第１図は本発明の一実施例を示すもので、１は最外周の
枠で、この枠ｌは側枠゛ と上下動自在な上枠１ｂとを
有し、かつ加圧時の内圧に耐える強度を持った、例えば
金属、木材等の材料が用いられ、かつ枠ｌには気泡を抜
く為に複数個の穴ｌｃが形成されている。(Embodiment) Fig. 1 shows an embodiment of the present invention, where 1 is the outermost frame, and this frame l has a side frame and an upper frame 1b that is vertically movable, and is pressurized. For example, a material such as metal or wood is used that has the strength to withstand the internal pressure of the frame 1, and a plurality of holes lc are formed in the frame 1 to remove air bubbles.
また、２は枠１の内側に設けられた中間層であり、この
中間層２は、例えば多孔質セラミックスの如き多孔性材
料から成り、外周の枠１に接着される。Further, reference numeral 2 denotes an intermediate layer provided inside the frame 1, and this intermediate layer 2 is made of a porous material such as porous ceramics, and is adhered to the outer peripheral frame 1.
さらに、３は内層で、この内層３は、中間ｊｆ４２の多
孔性材料中に注型材が浸透し、目づまりを防ぐため、使
い捨てができる安価なフィルターを張りつけて構成され
る。Furthermore, 3 is an inner layer, and this inner layer 3 is constructed by sticking an inexpensive disposable filter to prevent the casting material from penetrating into the porous material of the intermediate jf 42 and clogging.
その他、４は加圧用１ランジヤ、５は基準板、６は基準
板５に設置されるモデル、７は注型される注型材、７ａ
は気泡、８は筺体９内を真空にするための真空ポンプ、
１０は真空ポンプ８に接続されたホースである。In addition, 4 is a 1 rungear for pressurizing, 5 is a reference plate, 6 is a model installed on the reference plate 5, 7 is a casting material to be cast, 7a
8 is a bubble, 8 is a vacuum pump for evacuating the inside of the housing 9,
10 is a hose connected to the vacuum pump 8.
しかして、真空ポンプ８を駆動して枠ｌの周囲を略真空
状態とし、かつ加圧プランジャ４をｔｕｂして上枠ｉｂ
を押圧すれば、注型材７を加圧しながらその内部の気泡
７ａを内層３、中間Ｎ２および側枠１ａ、上枠１ｂを介
し脱泡できるものである。Then, the vacuum pump 8 is driven to create a substantially vacuum state around the frame l, and the pressurizing plunger 4 is tubed to open the upper frame ib.
By pressing , the air bubbles 7a inside the casting material 7 can be defoamed through the inner layer 3, middle N2, side frame 1a, and upper frame 1b while pressurizing the casting material 7.
すなわち、従来は一方向（上方）に脱泡していたものを
、本発明では周囲から脱泡できることおよび加圧をしな
から脱泡ができるため、効率的に脱泡することができる
。That is, while conventionally defoaming was performed in one direction (upwards), in the present invention, defoaming can be performed from the surroundings and without applying pressure, so that defoaming can be performed efficiently.
（発明の効果）
以上のように本発明によれば、真空中で基準板に設置し
たモデル上に注型材を注型してなる注型型であって、前
記モデルの周囲に枠を設け、かつこの最外周に設けられ
た枠は脱泡用の複数の穴が形成され、この枠の内側に多
孔性材料からなる中間層を設けるとともにその内側にフ
ィルターとしての内層を設け、前記注型型を加圧しつつ
その脱泡を行うようにしたから、
■ 従来の方法に比較し約’Ａ−’Ａの時間で脱泡がで
きる。(Effects of the Invention) As described above, according to the present invention, there is provided a casting mold in which a casting material is cast onto a model placed on a reference plate in a vacuum, and a frame is provided around the model; The frame provided on the outermost periphery is formed with a plurality of holes for defoaming, and an intermediate layer made of a porous material is provided inside the frame, and an inner layer as a filter is provided inside the frame, and the casting mold is Since defoaming is carried out while applying pressure, (1) defoaming can be accomplished in approximately 'A-'A time compared to the conventional method.
■ 脱泡工程と加圧工程が同時にできるため、型製作の
歩溜りが向上する。■ The degassing process and pressurizing process can be performed at the same time, improving the mold manufacturing yield.
■ 従来法より、脱泡が確実にできるようになったため
、型強度がアップし、信鯨性が高くなる。■ Compared to conventional methods, bubble removal is more reliable, which increases mold strength and improves reliability.
等の効果がある。There are other effects.
第１図は本発明の一実施例の説明図、第２図■〜■は従
来の工程説明図を示す。
ｌ・・・枠、１ａ・・・側枠、１ｂ・・・上枠、２・・
・中間層、３・・・内層、
・・・モデル、
４・・・加圧プランジャ、
５・・・基準板、
７・・・注型型、
７ａ・・・気泡。FIG. 1 is an explanatory diagram of one embodiment of the present invention, and FIGS. 2-2 are explanatory diagrams of conventional processes. l...Frame, 1a...Side frame, 1b...Top frame, 2...
- Middle layer, 3... Inner layer,... Model, 4... Pressure plunger, 5... Reference plate, 7... Casting mold, 7a... Air bubble.
Claims (1)
なる注型型であって、前記モデルの周囲に枠を設け、か
つこの最外周に設けられた枠は脱泡用の複数の穴が形成
され、この枠の内側に多孔性材料からなる中間層を設け
るとともにその内側にフィルターとしての内層を設け、
前記注型型を加圧しつつその脱泡を行うことを特徴とし
た注型型の脱泡方法。A casting mold made by pouring a casting material onto a model placed on a reference plate in a vacuum, with a frame provided around the model, and the outermost frame provided with a plurality of molds for defoaming. holes are formed, an intermediate layer made of a porous material is provided inside the frame, and an inner layer as a filter is provided inside the frame.
A method for defoaming a casting mold, comprising defoaming the casting mold while pressurizing the casting mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23457988A JPH0684016B2 (en) | 1988-09-19 | 1988-09-19 | Casting method for defoaming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23457988A JPH0684016B2 (en) | 1988-09-19 | 1988-09-19 | Casting method for defoaming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0281609A true JPH0281609A (en) | 1990-03-22 |
| JPH0684016B2 JPH0684016B2 (en) | 1994-10-26 |
Family
ID=16973227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23457988A Expired - Lifetime JPH0684016B2 (en) | 1988-09-19 | 1988-09-19 | Casting method for defoaming |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0684016B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7261814B2 (en) | 2004-04-20 | 2007-08-28 | Spx Corporation | Non-planar media transmission filter apparatus and method |
| JP2007313406A (en) * | 2006-05-24 | 2007-12-06 | Toyota Boshoku Corp | Filter |
| CN113680975A (en) * | 2021-07-06 | 2021-11-23 | 宁波图冠精密模具有限公司 | Casting mold and casting process of automobile flange pipe |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0932835A (en) * | 1995-07-18 | 1997-02-04 | Takeshi Kameyama | Locking of screw |
-
1988
- 1988-09-19 JP JP23457988A patent/JPH0684016B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7261814B2 (en) | 2004-04-20 | 2007-08-28 | Spx Corporation | Non-planar media transmission filter apparatus and method |
| JP2007313406A (en) * | 2006-05-24 | 2007-12-06 | Toyota Boshoku Corp | Filter |
| CN113680975A (en) * | 2021-07-06 | 2021-11-23 | 宁波图冠精密模具有限公司 | Casting mold and casting process of automobile flange pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0684016B2 (en) | 1994-10-26 |
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