JPH0718457Y2 - Flask - Google Patents
FlaskInfo
- Publication number
- JPH0718457Y2 JPH0718457Y2 JP6730190U JP6730190U JPH0718457Y2 JP H0718457 Y2 JPH0718457 Y2 JP H0718457Y2 JP 6730190 U JP6730190 U JP 6730190U JP 6730190 U JP6730190 U JP 6730190U JP H0718457 Y2 JPH0718457 Y2 JP H0718457Y2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- flask
- casting
- corner
- square pipe
- 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 - Fee Related
Links
Landscapes
- Casting Devices For Molds (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は鋳物工場に於いて、鋳型に適用される鋳枠に関
する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a flask applied to a mold in a foundry.
従来の鋳物工場で使用される鋳型用鋳枠の１例として第
３図、第４図に示すものがある。第３図は従来の鋳枠の
構造を示す平面図、第４図は第３図のＣ−Ｃ矢視断面図
である。第3,4図の右半分は一般的な鋳枠の場合の断面
であり、鋳枠の側面（ａ）はガス穴（ｂ）を穿設したコ
の字型の断面形状を有し、また図の左半分は、鋳枠の側
圧に対する断面係数を大きくするための鋳枠の側面を格
子状（ｃ）に補強した場合のものである。As an example of a mold flask used in a conventional foundry, there is one shown in FIGS. 3 and 4. FIG. 3 is a plan view showing the structure of a conventional flask, and FIG. 4 is a sectional view taken along the line CC of FIG. The right half of FIGS. 3 and 4 is a cross section in the case of a general molding flask, and the side surface (a) of the molding flask has a U-shaped cross-sectional shape in which a gas hole (b) is formed. The left half of the figure shows the case where the side surface of the flask is reinforced in a lattice shape (c) for increasing the sectional modulus with respect to the lateral pressure of the flask.
ところで鋳型に比重が約７もある溶鋼や溶鉄を注湯する
為には鋳枠強度を大きくして充分に溶湯の側圧に対応さ
せる必要があり、鋳型が大きくなるほどその必要性は高
い。そのため従来のコの字型の鋳枠では断面形状的に側
面からの圧力に弱い欠点があり、一般には、鋳枠の肉厚
を増すか、鋳枠に棧を多数設けて格子状とし、鋳枠の側
圧に対する断面係数を大きくしている。By the way, in order to pour molten steel or molten iron having a specific gravity of about 7 into the mold, it is necessary to increase the strength of the casting frame to sufficiently cope with the lateral pressure of the molten metal, and the larger the mold, the higher the necessity. Therefore, the conventional U-shaped flask has a drawback in that the pressure from the side is weak in terms of cross-sectional shape.In general, the wall thickness of the flask is increased, or a large number of caskets are provided in the flask to form a lattice shape. The section modulus against the lateral pressure of the frame is increased.
しかしながら従来の鋳枠は以上の様な構造となっている
ので、特に大物鋳物用の鋳型では、鋳枠の重量が大きく
なり鋳枠製作費用が高価となるばかりか、鋳型を吊上げ
るクレーン揚重能力を高める必要がある。However, since the conventional flask has the structure as described above, in the case of a mold for a large casting, not only the weight of the flask becomes large and the cost of manufacturing the flask becomes high, but also the crane lifting for lifting the mold is performed. You need to improve your ability.
また鋳枠側面に穿設するガス穴を大きくすると、造型時
にガス穴から鋳物砂が流れ出る懸念があり、小さなガス
穴を数多く設ける必要がある。Further, if the gas holes formed on the side surface of the casting frame are made large, there is a concern that molding sand will flow out from the gas holes during molding, and it is necessary to provide many small gas holes.
上記問題点を解決するために本考案鋳枠は、鋳枠一辺の
断面形状を角パイプ状のフレームとし、該フレームを鋳
枠四隅で連結固定する隅枠を設け、該隅枠の高さを前記
フレームの高さより僅かに高く構成すると共に、前記フ
レームを隅枠と分離可能としたものである。In order to solve the above-mentioned problems, the casting frame of the present invention has a square pipe-shaped frame on one side of the casting frame, and is provided with a corner frame for connecting and fixing the frame at the four corners of the casting frame. The height of the frame is slightly higher than that of the frame, and the frame can be separated from the corner frame.
本考案の鋳枠は上記のように構成したので、鋳枠の断面
係数が大きく、溶湯の側圧に対する鋳枠強度の向上を図
り、鋳枠の肉厚が薄くての充分に溶湯側圧に対応でき
る。Since the flask of the present invention is configured as described above, it has a large section modulus of the flask, improves the strength of the flask against the lateral pressure of the molten metal, and can sufficiently cope with the lateral pressure of the molten metal even if the wall thickness of the flask is thin. .
また鋳物の大きさに対応して鋳枠寸法を変えることが出
来るように、フレームを隅枠と分離できるように構成
し、鋳物寸法に応じたフレームの適用により鋳枠寸法の
調整が可能である。Also, the frame can be separated from the corner frame so that the size of the casting frame can be changed according to the size of the casting, and the size of the casting frame can be adjusted by applying the frame according to the size of the casting. .
尚、フレームよりも隅枠をやや高くしている為に、鋳枠
を重ねた時には上下のフレーム間に隙間が生じ、ガス抜
き用の開口部となる。この開口部は上下フレームの水平
面の間に設けられた形となるため、鋳物砂が鋳枠から洩
れ難く、充分なガス抜き用の開口部を設けることが出来
る。In addition, since the corner frame is slightly higher than the frame, a gap is created between the upper and lower frames when the casting frames are piled up to form an opening for degassing. Since this opening is formed between the horizontal planes of the upper and lower frames, it is difficult for the foundry sand to leak from the casting frame, and a sufficient vent opening can be provided.
〔実施例〕 以下、本考案を図面に示す一実施例に基づいて具体的に
説明する。[Embodiment] The present invention will be specifically described below based on an embodiment shown in the drawings.
第１図は本考案の一実施例に係わる鋳枠の斜視図であ
り、鋳枠の一辺である角パイプ状のフレームを取外した
状態を示し、第２図は鋳枠を重ね合せ鋳物砂が入った状
態のフレーム部の一断面を示す。FIG. 1 is a perspective view of a casting frame according to an embodiment of the present invention, showing a state in which a square pipe-shaped frame, which is one side of the casting frame, is removed, and FIG. The one section of the frame part of the state where it entered is shown.
第１図に於いて、鋳枠は断面角パイプ形状のフレームに
より四辺を囲繞形成され、該鋳枠の四隅には角パイプ１
取付け用の隅枠２を設けておりボルト３により角パイプ
１はそれぞれ隅枠２に固定される。第１図に示す該鋳枠
の斜視図はフレームの一辺である角パイプ１を取外した
状態を示す。フレームを鋳枠２と分離できるので鋳物寸
法に応じ角パイプを選択でき鋳枠寸法の調整が可能であ
る。In FIG. 1, a casting frame is surrounded by four sides by a frame having a square pipe-shaped cross section, and the square pipe 1 is provided at four corners of the casting frame.
A corner frame 2 for mounting is provided, and the square pipes 1 are fixed to the corner frame 2 by bolts 3, respectively. The perspective view of the flask shown in FIG. 1 shows a state where the square pipe 1 which is one side of the frame is removed. Since the frame can be separated from the flask 2, the square pipe can be selected according to the size of the casting, and the frame dimensions can be adjusted.
第２図に於いて、本考案鋳枠は、フレームよりも隅枠２
を僅かに高く構成している為に、鋳枠を重ね合せたと
き、上下の角パイプ１間に隅間が生じ、ガスＡ抜き用の
開口部Ｂが形成される。図は鋳物砂４が開口部Ｂの途中
で止っている状態を示す。そのため鋳物砂４は鋳枠から
洩れにくく、しかも充分なガス抜き用の開口部を形成す
る。In FIG. 2, the casting frame of the present invention has a corner frame 2 rather than a frame.
Because of the slightly higher height, when the molds are superposed, a space is created between the upper and lower square pipes 1, and an opening B for venting the gas A is formed. The figure shows a state in which the foundry sand 4 is stopped halfway through the opening B. Therefore, the foundry sand 4 is unlikely to leak from the casting frame, and forms a sufficient vent opening.
次ぎに本考案鋳枠を使用した具体例を従来技術との比較
で述べると、第１表は鋳枠のフレーム材として本考案の
角パイプ（200×400×12t）を適用した場合と、同重量
の従来のコの字型鋼材を用いた場合の断面係数の比較で
ある。Next, a concrete example using the casting flask of the present invention will be described in comparison with the prior art. Table 1 shows the case of applying the square pipe (200 × 400 × 12t) of the present invention as the frame material of the casting flask. It is a comparison of the section modulus when using the conventional U-shaped steel material of heavy weight.
第１表に於いて、角パイプは同重量のコの字型鋼材の約
２倍以上の断面係数を有し、応力＝荷重×長さ／断面係
数の式より、荷重と長さが一定の場合、断面係数が大き
くなると応力は反比例して下がることとなり、溶湯の側
圧に対して有効であることが分かる。 In Table 1, the square pipe has a section modulus that is about twice or more that of a U-shaped steel material of the same weight, and the load and length are constant according to the formula of stress = load × length / section coefficient. In this case, when the section modulus increases, the stress decreases in inverse proportion, which is effective for the lateral pressure of the molten metal.
以上本考案の１実施例につき縷々説明したが、本考案は
上記実施例に限定されることなく、本考案の技術思想の
範囲内で種々設計変更し得るものである。Although one embodiment of the present invention has been briefly described above, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the technical idea of the present invention.
以上、具体的に説明したように本考案の鋳枠は、断面係
数が大きい角パイプを鋳枠側面に用いているので、溶湯
の側圧に対する鋳枠強度が高い為に鋳枠重量の軽減を図
ることが可能であり、鋳枠製作費用の低減とクレーン揚
重能力の低減が図れ、鋳物寸法に応じた長さの角パイプ
の取換により鋳物寸法の調整が容易に可能である。また
鋳枠を重ね合せ鋳物砂を充填しても、上下の角パイプ間
に水平面が生じる為、鋳物砂が流れ出ない特徴を有す
る。As described above in detail, in the flask of the present invention, since the square pipe having a large section modulus is used on the side surface of the flask, the flask strength against the lateral pressure of the molten metal is high, so that the weight of the flask is reduced. It is possible to reduce the manufacturing cost of the flask and the lifting capacity of the crane, and it is possible to easily adjust the casting size by replacing the square pipe with the length corresponding to the casting size. Further, even if the molding flasks are piled up and filled with the molding sand, a horizontal surface is formed between the upper and lower square pipes, so that the molding sand does not flow out.
第１図は本考案の一実施例に係わる鋳枠の斜視図、第２
図は鋳枠を重ね合せ鋳物砂が入った状態のフレーム部の
一断面図である。第３図及び第４図は従来の鋳枠の構造
を示すもので第３図は平面図、第４図は第３図における
Ｃ−Ｃ断面図であり、右半分は側面にガス穴を有したコ
の字型の断面形状をし、左半分は鋳枠側面を格子状に補
強したものである。 １……角パイプ、２……隅枠、３……ボルト、４……鋳
物砂、Ａ……ガス、Ｂ……開口部、（ａ）……コの字型
フレーム、（ｂ）……ガス穴、（ｃ）……格子状フレー
ム。FIG. 1 is a perspective view of a flask according to an embodiment of the present invention, and FIG.
The figure is a cross-sectional view of the frame portion in which the casting frames are overlaid and the molding sand is contained therein. 3 and 4 show the structure of a conventional flask, FIG. 3 is a plan view, FIG. 4 is a sectional view taken along line CC in FIG. 3, and the right half has a gas hole on the side surface. It has a U-shaped cross section, and the left half is a grid frame side reinforcement. 1 ... Square pipe, 2 ... Corner frame, 3 ... Bolt, 4 ... Cast sand, A ... Gas, B ... Opening part, (a) ... U-shaped frame, (b) ... Gas holes, (c) ... Lattice frame.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 舞 敏文 広島県広島市西区観音新町４丁目６番22号 三菱重工業株式会社広島製作所内 (72)考案者 畠山 参四郎 広島県広島市西区観音新町４丁目６番22号 三菱重工業株式会社広島製作所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshifumi Mai 6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Mitsubishi Heavy Industries, Ltd. Hiroshima Works (72) Sanshiro Hatakeyama 4 Kannon Shincho, Nishi-ku, Hiroshima City, Hiroshima Prefecture 6-22 No. 22 Hiroshima Factory of Mitsubishi Heavy Industries, Ltd.
Claims (1)
ムとし、該フレームを鋳枠四隅で連結固定する隅枠を設
け、該隅枠の高さを前記フレームの高さより僅かに高く
構成すると共に、前記フレームを前記隅枠と分離可能に
構成したことを特徴とする鋳枠。1. A frame having a square pipe-shaped cross section on one side of a casting frame, provided with corner frames for connecting and fixing the frames at the four corners of the casting frame, and the height of the corner frame is slightly higher than the height of the frame. In addition, the casting frame is characterized in that the frame is configured to be separable from the corner frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6730190U JPH0718457Y2 (en) | 1990-06-27 | 1990-06-27 | Flask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6730190U JPH0718457Y2 (en) | 1990-06-27 | 1990-06-27 | Flask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0426651U JPH0426651U (en) | 1992-03-03 |
| JPH0718457Y2 true JPH0718457Y2 (en) | 1995-05-01 |
Family
ID=31600755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6730190U Expired - Fee Related JPH0718457Y2 (en) | 1990-06-27 | 1990-06-27 | Flask |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718457Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5559730B2 (en) * | 2011-03-24 | 2014-07-23 | アイシン高丘株式会社 | Inspection method of casting frame and inspection unit used for the inspection |
-
1990
- 1990-06-27 JP JP6730190U patent/JPH0718457Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0426651U (en) | 1992-03-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |