JPS6356332A - Shaping method for casting mold - Google Patents
Shaping method for casting moldInfo
- Publication number
- JPS6356332A JPS6356332A JP19955686A JP19955686A JPS6356332A JP S6356332 A JPS6356332 A JP S6356332A JP 19955686 A JP19955686 A JP 19955686A JP 19955686 A JP19955686 A JP 19955686A JP S6356332 A JPS6356332 A JP S6356332A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- sand
- flask
- molding
- 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 22
- 238000000034 method Methods 0.000 title claims description 11
- 238000007493 shaping process Methods 0.000 title 1
- 239000004576 sand Substances 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract 2
- 238000000465 moulding Methods 0.000 abstract description 10
- 239000003110 molding sand Substances 0.000 abstract 4
- 230000010355 oscillation Effects 0.000 abstract 3
- 238000012856 packing Methods 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 3
- -1 polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は鋳型の造型方法の改良に関するものであり、詳
しくは発泡樹脂模型を鋳砂内に埋設して鋳型を造型する
方法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 method for making a mold, and more specifically to a method for making a mold by embedding a foamed resin model in casting sand. .
（従来の技術）
従来、この種の造型方法として特公昭５２−１８８６号
公報に示さｒているようなものがあり、この鋳型造型法
は鋳枠内に予め鋳砂（床砂）を装入した後、該鋳砂上に
発泡樹脂模型を設置し、更にその上より鋳砂を装入し、
搗き固めもしくは振動等を与えて成型する方法である。(Prior art) Conventionally, there is a molding method of this type as shown in Japanese Patent Publication No. 1886/1986, and this mold molding method involves charging casting sand (bed sand) into the flask in advance. After that, a foamed resin model is placed on top of the casting sand, and casting sand is then charged from above.
This is a method of molding by pounding and applying vibrations.
（発明が解決しようとする問題点）
ポリエチレン、ポリプロピレン等からなる発泡樹脂模型
は、機械的強度に乏しく、かつ弾力性を有しているため
、鋳枠内に設置された該模型の周囲に鋳砂を装入するに
際して、該模型が変形し寸法精度のよい鋳物が得らオ土
ないという問題点がある。そこで、本発明はかかる問題
点を解消する１こめになさ詐たものであり、鋳砂の充填
方法を改善することにより鋳砂内に埋設される発泡樹脂
模型の変形防止を図ることを目的とする。(Problems to be Solved by the Invention) Foamed resin models made of polyethylene, polypropylene, etc. have poor mechanical strength and elasticity. There is a problem in that when charging sand, the model is deformed and castings with good dimensional accuracy cannot be obtained. Therefore, the present invention is an attempt to solve such problems, and its purpose is to prevent deformation of a foamed resin model buried in casting sand by improving the method of filling casting sand. do.
（問題点を解決するための手段）
本発明は鋳枠と発泡樹脂模型との間に多数個の小穴を有
する筒状体を介在せしめた後、鋳枠と筒状体との間に鋳
砂を充填し、次いで鋳枠に振動を加えて、前記多数個の
小穴を介して筒状体内に鋳砂を装入する鋳型の造型方法
である。(Means for Solving the Problems) The present invention involves interposing a cylindrical body having a large number of small holes between the flask and the foamed resin model, and then interposing casting sand between the flask and the cylindrical body. This is a mold making method in which the casting flask is filled with sand, and then vibration is applied to the casting flask to charge casting sand into the cylindrical body through the plurality of small holes.
（作用）
本考案は上述のような構成であるので、鋳枠と多数個の
小穴を有する筒状体との間に装入さｌた防砂に振動を加
えて、該小穴を介して該筒状体内に防砂を密に充填せし
め該防砂によって発泡樹脂模型を埋設する。(Function) Since the present invention has the above-mentioned configuration, vibration is applied to the sand protection inserted between the casting flask and the cylindrical body having a large number of small holes, and the sand protection material is blown through the small holes into the cylindrical body. Sand protection is densely filled into the shaped body, and the foamed resin model is buried in the sand protection.
（実施例）
図面は本発明の方法を実施する装置の一実施例であり、
振動テーブル１上に鋳枠２が載置さ社、鋳枠２内に装入
された非粘結砂３内に発泡樹脂模型４およ多数個の小穴
５．５を有する円筒体６が埋設されている。(Example) The drawing shows an example of an apparatus for carrying out the method of the present invention,
A molding flask 2 is placed on a vibrating table 1, and a foamed resin model 4 and a cylindrical body 6 having a large number of small holes 5 and 5 are embedded in non-caking sand 3 charged into the molding flask 2. has been done.
次に鋳型造型について説明する。Next, mold making will be explained.
振動テーブル１上に載置さ社た鋳枠２内に円筒体６を配
置し、円筒体６内に床砂（図示せず）を敷き該模型４を
設置した後、鋳枠２と円筒体６との間に非粘結砂３を装
入し、次いで振動テーブル１を振動させ鋳枠２に振動を
加えると、小穴５゜５を介して非粘結砂３が円筒体６内
に充填さ扛、該模型４が非粘結砂３内に埋設される。A cylindrical body 6 is placed in a casting flask 2 placed on a vibrating table 1, and after spreading bed sand (not shown) inside the cylindrical body 6 and installing the model 4, the flask 2 and the cylindrical body are placed. 6, the non-caking sand 3 is charged into the cylindrical body 6 through the small hole 5. When the vibration table 1 is vibrated to apply vibration to the flask 2, the non-caking sand 3 is filled into the cylindrical body 6 through the small hole 5. Then, the model 4 is buried in the non-caking sand 3.
上記実施例では鋳枠２内に発泡樹脂模型４と円筒体６と
が各−個配設さｉｔているが、鋳枠２内に複数個の発泡
樹脂模型４．４と円筒体６゜６とを配設しても、上記実
施例と同様の作用を奏する。In the above embodiment, a foamed resin model 4 and a cylindrical body 6 are each arranged in the flask 2, but a plurality of foamed resin models 4.4 and a cylindrical body 6.4 are disposed in the flask 2. Even if these are provided, the same effect as in the above embodiment is achieved.
（発明の効果）
本発明によれば、鋳枠と発泡樹脂模型との間に多数個の
小穴を有する筒状体を介在せしめｔコ後、鋳枠と筒状体
との間に防砂を充填し、次いで鋳枠に振動を加えて、前
記多数個の小穴を介して筒状体内に防砂を装入するから
、該模型の周囲に防砂を密に充填せしめると共に、鋳型
全体の充填密度が向上し、鋳型強度を高めることができ
るので、溶湯の「押込み」不良が皆無となり、また塗型
喰、砂喰等の異物喰が防＋）さｎ、寸法精度のよい鋳物
を製造できると共に、鋳型造型の時間短縮、生産性向上
に著しい効果があり、その工業的価値は大である。(Effects of the Invention) According to the present invention, a cylindrical body having a large number of small holes is interposed between the flask and the foamed resin model, and then sand prevention is filled between the flask and the cylindrical body. Then, vibration is applied to the casting flask and the sand protection is charged into the cylindrical body through the large number of small holes, so that the sand protection is densely packed around the model, and the filling density of the entire mold is improved. However, since the strength of the mold can be increased, there will be no "pushing" defects of the molten metal, and foreign matter such as coating and sand can be prevented. It has a remarkable effect on shortening molding time and improving productivity, and its industrial value is great.
図面は本発明の方法を実施する１こめの装置の断面図で
ある。
２・・・鋳枠、３・・・非粘結砂、４・・・発泡樹脂模
型、５・・・小穴、６・・・円筒体。The drawing is a cross-sectional view of a single apparatus implementing the method of the invention. 2... Casting flask, 3... Non-caking sand, 4... Foamed resin model, 5... Small hole, 6... Cylindrical body.
Claims (1)
の造型方法において、鋳枠と発泡樹脂模型との間に多数
個の小穴を有する筒状体を介在せしめた後、鋳枠と筒状
体との間に鋳砂を充填し、次いで鋳枠に振動を加えて、
前記多数個の小穴を介して筒状体内に鋳砂を装入するこ
とを特徴とする鋳型の造型方法。In a fugitive mold manufacturing method in which a foamed resin model is embedded in casting sand and molded, a cylindrical body with a large number of small holes is interposed between the casting flask and the foamed resin model, and then the flask and cylinder are Casting sand is filled between the molded body and the mold, and then vibration is applied to the flask.
A method for making a mold, characterized in that casting sand is charged into the cylindrical body through the plurality of small holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19955686A JPS6356332A (en) | 1986-08-26 | 1986-08-26 | Shaping method for casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19955686A JPS6356332A (en) | 1986-08-26 | 1986-08-26 | Shaping method for casting mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6356332A true JPS6356332A (en) | 1988-03-10 |
| JPH0587343B2 JPH0587343B2 (en) | 1993-12-16 |
Family
ID=16409787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19955686A Granted JPS6356332A (en) | 1986-08-26 | 1986-08-26 | Shaping method for casting mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6356332A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424563A (en) * | 2016-11-18 | 2017-02-22 | 绥阳县海红铸造有限责任公司 | Lost-form casting method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6284856A (en) * | 1985-10-08 | 1987-04-18 | Kubota Ltd | Sand packing method for full-mold casting method |
-
1986
- 1986-08-26 JP JP19955686A patent/JPS6356332A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6284856A (en) * | 1985-10-08 | 1987-04-18 | Kubota Ltd | Sand packing method for full-mold casting method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424563A (en) * | 2016-11-18 | 2017-02-22 | 绥阳县海红铸造有限责任公司 | Lost-form casting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0587343B2 (en) | 1993-12-16 |
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