JP2979537B2 - Release method of shell mold - Google Patents
Release method of shell moldInfo
- Publication number
- JP2979537B2 JP2979537B2 JP4328716A JP32871692A JP2979537B2 JP 2979537 B2 JP2979537 B2 JP 2979537B2 JP 4328716 A JP4328716 A JP 4328716A JP 32871692 A JP32871692 A JP 32871692A JP 2979537 B2 JP2979537 B2 JP 2979537B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- sand
- shell
- sand blowing
- blow
- 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
- Casting Devices For Molds (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水平割金型を用いて造
型したシェル鋳型を、上金型から分離するのに好適な方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method suitable for separating a shell mold formed using a horizontal split mold from an upper mold.
【０００２】[0002]
【従来の技術】従来、水平割金型を用いて造型したシェ
ル鋳型の金型からの分離は、一般に、上金型の砂吹き込
み口に押し出しピンを挿入して、シェル鋳型を上金型か
ら下方へ押し出すととももに下金型上に残しながら上金
型を上昇させ、続いて、下金型に残ったシェル鋳型を押
し出しピンで下金型から押し上げることにより行なわれ
るか、または、下金型の押し出しピンを上昇させて、シ
ェル鋳型を下金型から上方へ押し出すとともに上金型に
付着させて上金型を上昇させ、続いて、上金型の砂吹き
込み口に押し出しピンを挿入してシェル鋳型を上金型か
ら下方へ押し出すことにより行われている。2. Description of the Related Art Conventionally, a shell mold formed by using a horizontal split mold is separated from the mold by generally inserting an extruding pin into a sand blowing port of the upper mold to move the shell mold from the upper mold. Either by lowering the upper mold while extruding it downward and leaving it on the lower mold, and then pushing up the shell mold remaining on the lower mold from the lower mold with an extrusion pin, or Raise the extrusion pin of the mold, push the shell mold upward from the lower mold, attach it to the upper mold, raise the upper mold, and then insert the extrusion pin into the sand injection port of the upper mold Then, the shell mold is extruded downward from the upper mold.
【０００３】[0003]
【発明が解決しようとする課題】しかし、このような従
来のシェル鋳型の離型方法では、シェル鋳型を上金型か
ら押し出すための鋳型押し出し装置を、ブローヘッドと
並べて設ける必要があり、そのため、水平割金型を用い
たシェル鋳型造型機は、構造が複雑で大型の高価なもの
になるなどの問題があった。本発明は、上記の問題を解
消するためになされたもので、上金型用の鋳型押し出し
装置を別途設けることなくシェル鋳型を水平割金型から
分離することができる方法を提供することを目的とす
る。However, in such a conventional shell mold release method, it is necessary to provide a mold extruding device for extruding the shell mold from the upper mold in line with the blow head. The shell mold making machine using the horizontal split mold has a problem that the structure is complicated, large and expensive. The present invention has been made in order to solve the above problems, and has as its object to provide a method capable of separating a shell mold from a horizontal split mold without separately providing a mold extrusion device for an upper mold. And
【０００４】[0004]
【課題を解決するための手段】上記の目的を達成するた
めに本発明におけるシェル鋳型の離型方法は、下面に砂
吹き込みノズルを垂設しかつこの砂吹き込みノズルの上
方に邪魔板を設けたブロープレートを含むブローヘッド
を用いて、水平割金型のキャビティ内に上金型の砂吹き
込み口からシェル砂を吹き込み充填してシェル鋳型を造
型し、この造型したシェル鋳型を前記金型から分離する
ためのシェル鋳型の離型方法であって、上・下金型を型
合わせして成る水平割金型の上金型の砂吹き込み口に砂
吹き込みノズルを挿入して前記水平割金型のキャビティ
内にシェル砂を吹き込み充填し、シェル砂の充填完了後
前記砂吹き込みノズルを前記砂吹き込み口から抜き出し
かつ前記砂吹き込みノズル内等に残留しているシェル砂
を前記砂吹き込み口内に自然落下させ、前記キャビティ
内および前記砂吹き込み口内のシェル砂が焼成されたの
ち前記砂吹き込みノズルを前記砂吹き込み口に挿入して
前記シェル砂が焼成して成るシェル鋳型を前記上金型か
ら押し出すことを特徴とする。In order to achieve the above object, a method of releasing a shell mold according to the present invention comprises a method in which a sand blowing nozzle is vertically provided on a lower surface and a baffle plate is provided above the sand blowing nozzle. Using a blow head including a blow plate, shell sand is blown and filled into the cavity of the horizontal split mold from the sand blowing port of the upper mold to form a shell mold, and the molded shell mold is separated from the mold. A method of releasing a shell mold for forming a horizontal mold, wherein a sand blowing nozzle is inserted into a sand blowing port of an upper mold of a horizontal mold which is a combination of an upper mold and a lower mold. The shell sand is blown and filled into the cavity, and after completion of the shell sand filling, the sand blowing nozzle is withdrawn from the sand blowing port and the shell sand remaining in the sand blowing nozzle or the like is blown with the sand. The shell mold in which the shell sand in the cavity and the sand inlet is fired after the shell sand is fired, and the shell sand is fired by inserting the sand inlet nozzle into the sand inlet, and the shell mold is fired. It is characterized by being extruded from.
【０００５】[0005]
【実施例】本発明の一実施例について一部断面正面図で
ある図１乃至図５に基づき詳細に説明する。下金型１が
袴部材２を介して図示しない機台上に取り付けてあり、
下金型１には、シェル鋳型を下金型１から押し上げる複
数の押し出しピン３、３と、この押し出しピン３、３を
保持する押し出しピン取付け板４とが設けあり、押し出
しピン取付け板４等は、図示しない慣用手段により昇降
されるようになっている。さらに、下金型１の直上方位
置には、上金型５が図示しない慣用手段によって昇降可
能に配設してあり、上金型５は、前記下金型１上に型合
わせ可能に構成されかつ複数の砂吹き込み口６、６を有
している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to FIGS. A lower mold 1 is mounted on a machine base (not shown) via a skirt member 2,
The lower mold 1 is provided with a plurality of push pins 3, 3 for pushing up the shell mold from the lower mold 1, and a push pin mounting plate 4 for holding the push pins 3, 3, and the like. Is raised and lowered by conventional means (not shown). Further, an upper mold 5 is disposed at a position directly above the lower mold 1 so as to be able to ascend and descend by conventional means (not shown), and the upper mold 5 is configured so as to be moldable on the lower mold 1. And has a plurality of sand inlets 6,6.
【０００６】また、上金型５の直上方位置には、ブロー
ヘッド７が図示しない慣用手段をもって昇降可能に配設
してあり、ブローヘッド７は、ブローヘッド本体８と、
ブローヘッド本体８の下面に取り付けられたブロープレ
ート９と、ブロープレート９の下面に前記砂吹き込み口
６、６と対応して垂設されかつ砂吹き込み口６、６にそ
れぞれ挿入可能なブローノズル１０、１０と、ブロープ
レート６におけるブローノズル１０、１０の直上方位置
に支持部材１１、１１を介して所要の間隔をおいて装着
された邪魔板１２、１２とで構成されている。そして、
邪魔板１２、１２とシェル砂の安息角のために、ブロー
ヘッド７内のシェル砂Ｓは、自然の状態ではブローノズ
ル１０、１０内に流下しないようになっている。A blow head 7 is provided at a position directly above the upper mold 5 so as to be able to move up and down by a conventional means (not shown).
A blow plate 9 attached to the lower surface of the blow head body 8; and a blow nozzle 10 vertically provided on the lower surface of the blow plate 9 in correspondence with the sand blowing ports 6, 6 and insertable into the sand blowing ports 6, 6, respectively. , 10 and baffle plates 12, 12 that are mounted on the blow plate 6 at positions just above the blow nozzles 10, 10 at required intervals via support members 11, 11. And
Due to the angle of repose between the baffles 12 and the shell sand, the shell sand S in the blow head 7 does not flow down into the blow nozzles 10 and 10 in a natural state.
【０００７】このように構成した装置を用いてシェル鋳
型Ｍを造型し、造型したシェル鋳型Ｍを離型するには、
図１に示すように、まず上金型５を下降して上・下金型
５、１を型合わせする。次いで、図２に示すようにブロ
ーヘッド７を下降させてブローノズル１０、１０を上金
型５の砂吹き込み口６、６に挿入し、続いて、ブローヘ
ッド内７に圧縮空気を供給してシェル砂Ｓを、上・下金
型５、１が画成するキャビティ内に吹き込み充填する。
次いで、図３に示すように、ブローヘッド７等を上昇さ
せてブローノズル１０、１０を砂吹き込み口６、６から
抜き出しかつ前記砂吹き込みノズル１０、１０内等に残
留しているシェル砂Ｓを前記砂吹き込み口６、６内に自
然落下させ、続いて、上金型５上に盛り上がったシェル
砂Ｓを図示しないスクレーパで除去する。キャビティ内
および砂吹き込み口６、６内に充填したシェル砂Ｓが焼
成されたのち、図４に示すように、ブローヘッド７を再
び下降させてブローノズル１０、１０を吹き込み口６、
６に挿入し、シェル砂Ｓが硬化して成るシェル鋳型Ｍを
下方へ押圧しながら、図示しない慣用手段をもって上金
型５を上昇させる。これにより、シェル鋳型Ｍを上金型
５から分離するとともに下金型１上に残すことができ
る。[0007] In order to mold the shell mold M by using the apparatus configured as described above and release the molded shell mold M,
As shown in FIG. 1, first, the upper mold 5 is lowered and the upper and lower molds 5 and 1 are matched. Next, as shown in FIG. 2, the blow head 7 is lowered to insert the blow nozzles 10 and 10 into the sand blowing ports 6 and 6 of the upper mold 5, and then compressed air is supplied into the blow head 7. The shell sand S is blown and filled into the cavity defined by the upper and lower molds 5 and 1.
Next, as shown in FIG. 3, the blow head 7 and the like are raised to pull out the blow nozzles 10 and 10 from the sand blowing ports 6 and 6 and to remove the shell sand S remaining in the sand blowing nozzles 10 and 10 and the like. The sand is spontaneously dropped into the sand blowing ports 6, 6, and the shell sand S raised on the upper mold 5 is removed by a scraper (not shown). After the shell sand S filled in the cavity and the sand blowing ports 6, 6 is fired, as shown in FIG. 4, the blow head 7 is lowered again to bring the blow nozzles 10, 10 into the blowing ports 6, 6.
6, and while pressing the shell mold M formed by hardening the shell sand S downward, the upper mold 5 is raised by conventional means (not shown). Thereby, the shell mold M can be separated from the upper mold 5 and left on the lower mold 1.
【０００８】次いで、図５に示すように、図示しない慣
用手段をもって押し出しピン取付け板４および押し出し
ピン３、３を上昇させて下金型１上に残っていたシェル
鋳型Ｍを下金型１から分離するとともに押し上げる。こ
れにより、シェル鋳型Ｍを離型することができる。な
お、上記の実施例では、シェル鋳型Ｍを下金型１上に残
すようにしているが、上・下金型５、１のキャビティ内
に吹き込まれたシェル砂Ｓが硬化したのち、まず押し出
しピン３、３等を上昇させてシェル鋳型Ｍを下金型１か
ら分離上昇させながら上金型５を上昇させて、シェル鋳
型Ｍを上金型５に付着させ、その後、ブローノズル１
０、１０を砂吹き込み口６、６に挿入して、上金型５に
付着のシェル鋳型Ｍを上金型５から押し出すようにして
もよい。Next, as shown in FIG. 5, the push-out pin mounting plate 4 and the push-out pins 3, 3 are raised by conventional means (not shown) to remove the shell mold M remaining on the lower mold 1 from the lower mold 1. Separate and push up. Thereby, the shell mold M can be released. In the above embodiment, the shell mold M is left on the lower mold 1, but after the shell sand S blown into the cavities of the upper and lower molds 5 and 1 is hardened, it is first extruded. The upper mold 5 is raised while the shell mold M is separated from the lower mold 1 by raising the pins 3, 3 and the like, and the shell mold M is attached to the upper mold 5.
The shell mold M attached to the upper mold 5 may be extruded from the upper mold 5 by inserting 0, 10 into the sand blowing ports 6, 6.
【０００９】[0009]
【発明の効果】以上の説明から明らかなように本発明
は、鋳型押し出しピンの代わりにブローノズルを用いて
シェル鋳型を上金型から押し出すようにしたから、この
方法を適用するシェル鋳型造型機は、上金型用の鋳型押
し出し装置が不要になり、従来のこの種のシェル鋳型造
型機と比較して構造が簡単で小型になり、値段が安くな
るなどの優れた効果を奏する。As is apparent from the above description, according to the present invention, the shell mold is extruded from the upper mold by using a blow nozzle instead of the mold extruding pin. The present invention eliminates the need for a mold extruder for the upper mold, and has excellent effects such as a simpler structure, a smaller size, and a lower price than conventional shell mold making machines of this kind.
【図１】乃至FIG. 1 through
【図５】本発明の一実施例の工程を示す一部断面正面図
である。FIG. 5 is a partial cross-sectional front view showing the steps of one embodiment of the present invention.
５ 上金型 ６ 砂吹き込み口 ７ ブローヘッド ９ ブロープレート １０ 砂吹き込みノズル １２ 邪魔板 5 Upper mold 6 Sand blowing port 7 Blow head 9 Blow plate 10 Sand blowing nozzle 12 Baffle plate
Claims (1)
の砂吹き込みノズルの上方に邪魔板を設けたブロープレ
ートを含むブローヘッドを用いて、水平割金型のキャビ
ティ内に上金型の砂吹き込み口からシェル砂を吹き込み
充填してシェル鋳型を造型し、この造型したシェル鋳型
を前記金型から分離するためのシェル鋳型の離型方法で
あって、 上・下金型を型合わせして成る前記水平割金型の前記砂
吹き込み口に前記砂吹き込みノズルを挿入して前記キャ
ビティ内にシェル砂を吹き込み充填する工程と、シェル
砂の充填完了後前記砂吹き込みノズルを前記砂吹き込み
口から抜き出しかつ前記砂吹き込みノズル内等に残留し
ているシェル砂を前記砂吹き込み口内に自然落下させる
工程と、前記キャビティ内および前記砂吹き込み口内の
シェル砂が焼成されたのち前記砂吹き込みノズルを前記
砂吹き込み口に挿入して前記シェル砂が焼成して成るシ
ェル鋳型を前記上金型から押し出す鋳型押し出し工程
と、を有することを特徴とするシェル鋳型の離型方法。An upper mold sand is provided in a cavity of a horizontal split mold by using a blow head including a blow plate having a sand blowing nozzle vertically provided on a lower surface thereof and a baffle plate provided above the sand blowing nozzle. A shell mold is formed by blowing and filling shell sand from an injection port, and a mold release method of a shell mold for separating the formed shell mold from the mold, wherein the upper and lower molds are matched. Inserting the sand blowing nozzle into the sand blowing port of the horizontal split mold to blow and fill shell sand into the cavity; and withdrawing the sand blowing nozzle from the sand blowing port after completion of the shell sand filling. And a step of allowing shell sand remaining in the sand blowing nozzle or the like to fall naturally into the sand blowing port, and shell sand in the cavity and the sand blowing port. A mold extruding step of inserting the sand blowing nozzle into the sand blowing port after firing, and extruding a shell mold formed by firing the shell sand from the upper mold. Type method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4328716A JP2979537B2 (en) | 1992-11-13 | 1992-11-13 | Release method of shell mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4328716A JP2979537B2 (en) | 1992-11-13 | 1992-11-13 | Release method of shell mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06154953A JPH06154953A (en) | 1994-06-03 |
| JP2979537B2 true JP2979537B2 (en) | 1999-11-15 |
Family
ID=18213388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4328716A Expired - Lifetime JP2979537B2 (en) | 1992-11-13 | 1992-11-13 | Release method of shell mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2979537B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798244B (en) * | 2016-05-04 | 2017-10-03 | 江阴机械制造有限公司 | Universal sand ejection board |
| CN107243606B (en) * | 2017-06-09 | 2019-03-05 | 安徽全柴天和机械有限公司 | A kind of sand ejection board with water cooling and position-limiting action |
-
1992
- 1992-11-13 JP JP4328716A patent/JP2979537B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06154953A (en) | 1994-06-03 |
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