JPH0684016B2 - Casting method for defoaming - Google Patents
Casting method for defoamingInfo
- Publication number
- JPH0684016B2 JPH0684016B2 JP23457988A JP23457988A JPH0684016B2 JP H0684016 B2 JPH0684016 B2 JP H0684016B2 JP 23457988 A JP23457988 A JP 23457988A JP 23457988 A JP23457988 A JP 23457988A JP H0684016 B2 JPH0684016 B2 JP H0684016B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- defoaming
- casting
- casting mold
- vacuum
- 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
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
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。Description: TECHNICAL FIELD The present invention relates to a simplified casting degassing method for high-mix low-volume production in which the quality of castings is improved.
（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 performed 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７′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'which is a molding material. When the main ingredient A and the hardening material B are weighed and mixed and stirred in the container (c), in the air. Because there is
During this working process, air is mixed into the casting material 7'as bubbles 7'a. In addition, both the main agent A and the curing agent B originally contain fine 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１′との中に上記過程で作った注型剤７′
を注入するがこの時点でも気泡７′ａが混入する。Next, as shown in FIG. 2, the casting agent 7'made in the above process is placed in the model 6'and the frame 1'installed on the reference plate 5 '.
The air bubbles 7'a are mixed in at this point as well.
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, deaeration is performed by applying a vacuum in the casting device.
次に第２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 FIG. 2, pressure is applied in 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Ｄを充填し、
その部分に設けたネジの如き部材Ｅを、例えばペンチ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 the heater H while the fan F is rotated by the motor M, and FIG.
A member E such as a screw provided on the portion is attached to, for example, pliers F.
It shows a state in which it is gripped with and pulled out downward to be released.
しかる後、注型型は硬化されるものである。Then, the casting mold is to be cured.
（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、 （ア） 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。(Problems to be solved by the invention) However, in the above method, first, in the step shown in FIG. 2, (a) Defoaming is performed only in one direction only from the upper part of the casting mold 7 ′, and therefore defoaming is performed. It takes a lot of time to foam.
（イ） 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。(B) Depending on the shape of the model 6 ', there may be a portion where bubbles cannot be completely removed.
という課題をを有している。Has the problem.
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有してい
た。Further, in the step shown in FIG. 2, the step of pressurizing and the step of defoaming are different, so that there is a problem that the yield is poor.
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 an object thereof is to efficiently remove bubbles in a casting mold and provide a casting mold with high strength in which bubbles do not mix. .
（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 Problem) The present invention is a casting mold in which a casting material is cast on a model installed on a reference plate in a vacuum, and a frame is provided around the model, and A plurality of holes for defoaming are formed in the frame provided on the outermost periphery, an intermediate layer made of a porous material is provided inside the frame, an inner layer as a filter is provided inside the frame, and the casting mold is added. The above object is achieved by degassing 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。(Operation) In the present invention, since a frame having a hole for defoaming and a porous intermediate layer are provided around the casting mold and the casting mold is depressurized from its surroundings while being pressurized, It is a casting mold that can quickly remove air bubbles in the mold and has high strength.
（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１は側枠1a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
型、木材等の材料が用いられ、、かつ枠１には気泡を抜
く為に複数個の穴1cが形成されている。(Embodiment) FIG. 1 shows an embodiment of the present invention, in which reference numeral 1 denotes an outermost frame, which has a side frame 1a and a vertically movable upper frame 1b, and is pressurized. A material having a strength to withstand the internal pressure at the time, for example, a mold, wood, or the like is used, and a plurality of holes 1c are formed in the frame 1 to remove 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。Reference numeral 2 denotes an intermediate layer provided inside the frame 1. The intermediate layer 2 is made of a porous material such as porous ceramics and is bonded to the outer frame 1.
さらに、３は内層で、この内層３は、中間層２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。Further, 3 is an inner layer, and this inner layer 3 is constituted by attaching an inexpensive filter which can be disposable to prevent the casting material from penetrating into the porous material of the intermediate layer 2 and clogging.
その他、４は加圧用プランジャ、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は筐体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 pressurizing plunger, 5 is a reference plate, 6 is a model installed on the reference plate 5, 7 is a casting material to be cast, 7a is a bubble, and 8 is a vacuum for creating a vacuum in the housing 9. Pump, 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１の周囲を略真空
状態とし、かつ加圧プランジャ４を駆動して上枠1b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、中間層２および側枠1a、上枠1bを介し脱泡でき
るものである。Then, if the vacuum pump 8 is driven to bring the surroundings of the frame 1 into a substantially vacuum state, and the pressure plunger 4 is driven to press the upper frame 1b, air bubbles 7a therein are pressed while pressurizing the casting material 7. It can be defoamed through the inner layer 3, the intermediate layer 2, the side frame 1a, and the upper frame 1b.
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
なが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, in the present invention, what has conventionally been defoamed in one direction (upward) can be defoamed from the surroundings and can be defoamed while 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1/2〜1/5の時間で脱泡ができ
る。(Effect of the invention) As described above, according to the present invention, a casting mold is formed by casting a casting material on a model installed on a reference plate in a vacuum, and a frame is provided around the model, And the frame provided on the outermost periphery is formed with a plurality of holes for defoaming, an intermediate layer made of a porous material is provided on the inner side of the frame, and an inner layer as a filter is provided on the inner side of the frame. Since the defoaming is performed while pressurizing, the defoaming can be performed in about 1/2 to 1/5 time as compared with 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。Since the defoaming step and the pressurizing step can be performed at the same time, the yield of die production is improved.
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、信頼性が高くなる。Since defoaming can be performed more reliably than in the conventional method, the mold strength is increased and the reliability is increased.
等の効果がある。And so on.
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。 １……枠、1a……側枠、1b……上枠、２……中間層、３
……内層、４……加圧プランジャ、５……基準板、６…
…モデル、７……注型型、7a……気泡。FIG. 1 is an explanatory view of an embodiment of the present invention, and FIGS. 1 ... frame, 1a ... side frame, 1b ... upper frame, 2 ... intermediate layer, 3
...... Inner layer, 4 ... Pressure plunger, 5 ... Reference plate, 6 ...
… Model, 7… Casting mold, 7a… Bubble.
Claims (1)
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
とを特徴とした注型型の脱泡方法。1. A casting mold in which a casting material is cast on a model placed on a reference plate in a vacuum, and a frame is provided around the model, and the frame provided on the outermost periphery is A plurality of holes for defoaming 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, and defoaming is performed while pressing the casting mold. Casting method for defoaming.
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 JPH0281609A (en) | 1990-03-22 |
| JPH0684016B2 true 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0932835A (en) * | 1995-07-18 | 1997-02-04 | Takeshi Kameyama | Locking of screw |
Families Citing this family (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 |
| JP4747947B2 (en) * | 2006-05-24 | 2011-08-17 | トヨタ紡織株式会社 | filter |
| CN113680975B (en) * | 2021-07-06 | 2023-04-25 | 宁波图冠精密模具有限公司 | Casting mold and casting process for automobile flange pipe |
-
1988
- 1988-09-19 JP JP23457988A patent/JPH0684016B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0932835A (en) * | 1995-07-18 | 1997-02-04 | Takeshi Kameyama | Locking of screw |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0281609A (en) | 1990-03-22 |
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