JP2015150587A - Metal frame for greensand type facility - Google Patents

Metal frame for greensand type facility Download PDF

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JP2015150587A
JP2015150587A JP2014026632A JP2014026632A JP2015150587A JP 2015150587 A JP2015150587 A JP 2015150587A JP 2014026632 A JP2014026632 A JP 2014026632A JP 2014026632 A JP2014026632 A JP 2014026632A JP 2015150587 A JP2015150587 A JP 2015150587A
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metal frame
frame
liner
sand molding
molding equipment
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JP6206235B2 (en
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大野　泰嗣
Yasutsugu Ono
泰嗣 大野
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Sintokogio Ltd
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Sintokogio Ltd
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Priority to CN201510066899.1A priority patent/CN104841892B/en
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Abstract

PROBLEM TO BE SOLVED: To provide a metal frame for a greensand type facility, which need not be wholly interchanged even in the case where the vertical end parts of the metal frame inner surface are worn.SOLUTION: In a metal frame for greensand type facility, a metal frame inner surface 3 forming a prism-shaped cavity to shape a casting mold 2 is formed into a concave shape having a central part recessed in the height direction of the metal frame, and a replaceable liner is bonded to one or both of the vertical end parts of the metal frame inner surface 3. At the worn time, only a liner 6 may be replaced to reduce the cost drastically.

Description

本発明は、鋳型の自動造型ラインにおいて用いられる生砂造型設備用金枠の改良に関するものである。   The present invention relates to an improvement of a metal frame for fresh sand molding equipment used in an automatic molding line for molds.

生砂造型法では、上枠と下枠とからなる生砂造型設備用金枠の内部に、生砂を用いて鋳型が造型され、その鋳型に溶湯を注入して鋳造が行なわれる。この生砂造型設備用金枠は、例えば特許文献１に示されるように四角枠状体である。   In the green sand molding method, a mold is molded using green sand inside a metal frame for a green sand molding facility composed of an upper frame and a lower frame, and casting is performed by pouring molten metal into the mold. This metal frame for raw sand molding equipment is a square frame-like body as shown in Patent Document 1, for example.

この生砂造型設備用金枠は、内面中央部を凹形状として造型された鋳型が金枠から抜け落ちることを防止している。図５は従来の生砂造型設備用金枠の断面形状を示すもので、１０１は生砂造型設備用金枠、１０２はその内部に造型された鋳型である。   This metal frame for raw sand molding equipment prevents a mold formed with a concave shape at the center of the inner surface from falling out of the metal frame. FIG. 5 shows a cross-sectional shape of a conventional metal frame for fresh sand molding equipment, 101 is a metal frame for fresh sand molding equipment, and 102 is a mold molded inside.

しかし、注湯した鋳型１０２を生砂造型設備用金枠１０１から抜き出す工程が必要なため、長期間使用していると、金枠中央の凹部１０４に対して出っ張っている取り合いの金枠内面１０３の上下方向の端部１０５が次第に摩耗してくる。   However, since a step of extracting the poured mold 102 from the metal frame 101 for fresh sand molding equipment is necessary, the metal frame inner surface 103 that protrudes from the concave portion 104 at the center of the metal frame when used for a long time. The end portion 105 in the vertical direction gradually wears.

図５に示したように、従来の生砂造型設備用金枠１０１は鋳型１０２と接する内面が金枠本体と一体構造であり、金枠内面の上下方向の端部１０５が摩耗した場合、金枠の全体を一式交換する必要がある。このため、莫大な費用が発生するという問題があった。   As shown in FIG. 5, the conventional metal frame 101 for fresh sand molding equipment has an inner surface in contact with the mold 102 and an integrated structure with the main body of the metal frame, and when the vertical end 105 of the inner surface of the metal frame is worn, The entire frame needs to be replaced. For this reason, there was a problem that enormous expense was generated.

実公昭５１−１２４１６号公報Japanese Utility Model Publication No. 51-12416

従って本発明の目的は上記した従来の問題点を解決し、金枠内面の上下方向の端部が摩耗した場合にも、金枠の全体を一式交換する必要をなくした生砂造型設備用金枠を提供することである。   Therefore, the object of the present invention is to solve the above-mentioned conventional problems, and even when the vertical end of the inner surface of the metal frame is worn, it is not necessary to replace the entire metal frame as a whole. Is to provide a frame.

上記の課題を解決するためになされた本発明の生砂造型設備用金枠は、鋳型を造型する角柱形状の空洞を形成する金枠内面を、金枠の高さ方向の中央部がくぼんだ凹形状とするとともに、金枠内面の上下方向の端部の一方または双方を、取り換え可能なライナ貼り構造としたことを特徴とするものである。   The metal frame for fresh sand molding equipment of the present invention made to solve the above-mentioned problem is a metal frame inner surface forming a prismatic cavity forming a mold, with the central portion in the height direction of the metal frame recessed. In addition to the concave shape, one or both of the end portions in the vertical direction of the inner surface of the metal frame have a replaceable liner bonding structure.

請求項２の発明は請求項１の発明において、金枠内面の上下方向の端部のうち、上端部のみをライナ貼り構造とした上枠と、上下端部をともにライナ貼り構造とした下枠とからなることを特徴とするものである。また請求項３の発明は請求項１の発明において、金枠内面の対向する一対の二辺のみをライナ貼り構造としたことを特徴とするものである。   According to a second aspect of the present invention, in the first aspect of the invention, the upper frame in which only the upper end portion has a liner pasting structure and the lower frame in which both upper and lower end portions have a liner pasting structure among the vertical ends of the inner surface of the metal frame. It is characterized by the following. The invention of claim 3 is characterized in that, in the invention of claim 1, only a pair of opposing two sides of the inner surface of the metal frame has a liner bonding structure.

本発明の生砂造型設備用金枠は、金枠内面を金枠の高さ方向の中央部がくぼんだ凹形状とし、造型された鋳型が抜け落ちることを防止したことは従来と同様である。しかし、金枠内面の上下方向の端部の一方または双方を取り換え可能なライナ貼り構造としたので、端部が摩耗した場合にはライナのみを交換すればよく、従来のように金枠の全体を一式交換する必要はない。このため従来のように莫大な費用を要することがない。なお鋳型の抜け落ちは確実に防止できるので、生産する鋳物を常に高品質に保つことができる。さらに請求項２，３の発明によればライナ貼り箇所を必要最低限とすることにより、コストダウンを図ることができる。   The metal frame for fresh sand molding equipment of the present invention has a concave shape in which the central portion in the height direction of the metal frame is recessed to prevent the molded mold from falling off as in the conventional case. However, because it has a liner pasting structure that can replace one or both of the upper and lower ends of the inner surface of the metal frame, if the end is worn, only the liner needs to be replaced. There is no need to replace the set. For this reason, it does not require enormous expense like the past. Since the mold can be reliably prevented from falling off, the castings to be produced can always be kept in high quality. Further, according to the second and third aspects of the invention, the cost can be reduced by minimizing the number of places where the liner is attached.

実施形態の生砂造型設備用金枠を示す部分断面正面図である。It is a fragmentary sectional front view which shows the metal frame for fresh sand molding facilities of embodiment. 実施形態の生砂造型設備用金枠を示す側面断面図である。It is side surface sectional drawing which shows the metal frame for fresh sand molding equipment of embodiment. 本発明の実施形態を示す生砂造型設備用金枠の平面図である。It is a top view of the metal frame for fresh sand molding equipment which shows embodiment of this invention. 上枠を示す生砂造型設備用金枠の部分断面図である。It is a fragmentary sectional view of the metal frame for fresh sand molding facilities which shows an upper frame. 従来の生砂造型設備用金枠を示す側面断面図である。It is side surface sectional drawing which shows the conventional metal frame for fresh sand molding facilities.

以下に本発明の好ましい実施形態を説明する。
図１は実施形態の生砂造型設備用金枠１の全体を示す図であり、１ａは上枠、１ｂは下枠、２はこれらの金枠１の内部に造型された鋳型である。上枠１ａは下枠１ｂの上面に積み重ねられている。 Hereinafter, preferred embodiments of the present invention will be described.
FIG. 1 is a view showing the entire metal frame 1 for fresh sand molding equipment of an embodiment, wherein 1a is an upper frame, 1b is a lower frame, and 2 is a mold formed inside these metal frames 1. FIG. The upper frame 1a is stacked on the upper surface of the lower frame 1b.

金枠１の内部には角柱形状の空洞が形成されており、この空洞に鋳型２が造型される。図２、図３に示すように、空洞を形成する金枠内面３は、従来と同様に金枠１の高さ方向の中央部がくぼんだ凹形状となっており、これによって搬送中に鋳型２が金枠１から抜け落ちることを防止している。しかし注湯した鋳型２を金枠１から抜き出す工程が繰り返されるため、前記した通り、金枠内面３の上下方向の端部が次第に摩耗してくることは避けられない。   A prismatic cavity is formed inside the metal frame 1, and a mold 2 is formed in this cavity. As shown in FIGS. 2 and 3, the inner surface 3 of the metal frame that forms the cavity has a concave shape in which the central portion in the height direction of the metal frame 1 is recessed as in the conventional case. 2 is prevented from falling out of the metal frame 1. However, since the process of extracting the poured mold 2 from the metal frame 1 is repeated, it is inevitable that the end portions in the vertical direction of the inner surface 3 of the metal frame gradually wear as described above.

そこで本発明では図１から図３に示すように、金枠内面３の上下方向の端部にライナ６を取付けてライナ貼り構造とした。ライナ６は金枠内面３に沿って水平方向に延びる平板状部材であり、金枠１の外面から多数のボルト８によって締付固定されている。ライナ６は摩耗時にはボルト８を緩めて容易に取り換えることができるようにしておく。なお図４に示されるように、ライナ６が取り付けられる金枠内面３にはライナ６の厚みに相当する凹溝１０を形成しておき、ライナ６の表面が金枠内面３とほぼ同一平面となるようにしておくことが好ましい。ライナ６の材質は金枠と同一金属とするか、耐摩耗性金属とすることが好ましいが、耐摩耗性に優れたアルミナ、ジルコニア等のセラミック材とすることもできる。   In view of this, in the present invention, as shown in FIGS. 1 to 3, a liner 6 is provided by attaching a liner 6 to an end portion in the vertical direction of the inner surface 3 of the metal frame. The liner 6 is a flat plate member extending horizontally along the inner surface 3 of the metal frame, and is fastened and fixed by a large number of bolts 8 from the outer surface of the metal frame 1. When the liner 6 is worn, the bolt 8 is loosened so that it can be easily replaced. As shown in FIG. 4, a concave groove 10 corresponding to the thickness of the liner 6 is formed on the inner surface 3 of the metal frame to which the liner 6 is attached, and the surface of the liner 6 is substantially flush with the inner surface 3 of the metal frame. It is preferable that The material of the liner 6 is preferably the same metal as the metal frame or a wear-resistant metal, but may be a ceramic material such as alumina or zirconia having excellent wear resistance.

ライナ６は上枠１ａと下枠１ｂの上下の端部に配置しても良いが、上枠１ａは上下反転されないために鋳型２は常に上方に抜き出されることとなり、上側端部は摩耗するが下側端部は摩耗しない。このため図４に示したように、上枠１ａは金枠内面３の上下方向の端部のうち、上端部のみをライナ貼り構造とすればよい。しかし下枠１ｂは上下反転されて使用されるため、上側端部も下側端部もともに摩耗する。このため下枠１ｂは図２に示すように、上下端部をともにライナ貼り構造とすることが好ましい。   The liner 6 may be disposed at the upper and lower ends of the upper frame 1a and the lower frame 1b. However, since the upper frame 1a is not turned upside down, the mold 2 is always drawn upward, and the upper end is worn. However, the lower end does not wear. For this reason, as shown in FIG. 4, the upper frame 1a should just make a liner sticking structure only the upper end part among the edge parts of the up-down direction of the metal frame inner surface 3. As shown in FIG. However, since the lower frame 1b is used upside down, both the upper end and the lower end are worn. For this reason, as shown in FIG. 2, the lower frame 1b preferably has a liner-attached structure at the upper and lower ends.

図３に示したように、この実施形態ではライナ６を四角形の金枠内面３の四辺に配置した。しかし対向する一対の二辺（長辺または短辺）のみに配置することもできる。ライナ６の長さは必ずしも金枠内面３の辺の長さと同一とする必要はなく、図３に示すようにコーナー部は省略することができる。このようにライナ貼り箇所を必要最低限とすれば、より大きなコストダウンを図ることができる。   As shown in FIG. 3, in this embodiment, the liner 6 is arranged on four sides of the rectangular metal frame inner surface 3. However, it can be arranged only on a pair of opposing two sides (long side or short side). The length of the liner 6 is not necessarily the same as the length of the side of the inner surface 3 of the metal frame, and the corner portion can be omitted as shown in FIG. In this way, if the number of liners is minimized, a greater cost reduction can be achieved.

なお図１、図３に示すように、この実施形態では上枠１ａと下枠１ｂの長辺側の側面中央部に、金枠位置決め用ライナ９がボルトによって取付けられている。これは搬送装置側に設けられた図示しない金枠位置決め装置により金枠１の位置決めを行なう際に用いられるものであり、耐摩耗性材質とすることにより摩耗を防止し、位置決め精度を確保することができる。しかし金枠位置決め用ライナ９は本発明の必須要件ではなく、省略することもできる。   As shown in FIGS. 1 and 3, in this embodiment, a metal frame positioning liner 9 is attached to the long side of the upper frame 1 a and the lower frame 1 b by bolts. This is used when the metal frame 1 is positioned by a metal frame positioning device (not shown) provided on the conveying device side. By using a wear-resistant material, wear is prevented and positioning accuracy is ensured. Can do. However, the metal frame positioning liner 9 is not an essential requirement of the present invention and can be omitted.

このように構成された本発明の生砂造型設備用金枠１は、従来と同様に自動造型ラインにおいてその内部に鋳型２を造型するために用いられるものであるが、金枠内面３の上下方向の端部が摩耗してきた際に、ライナ６のみを交換することにより金枠内面３の凹形状を維持することができる。このため従来のように生砂造型設備用金枠１の全体を一式交換することなく、鋳型２の抜け落ちを防止することができる。従って従来のように莫大な費用を要することなく、鋳物を高品質に保つことができる利点がある。   The metal frame 1 for raw sand molding equipment of the present invention configured as described above is used for molding a mold 2 in an automatic molding line as in the prior art. When the end of the direction has worn, the concave shape of the inner surface 3 of the metal frame can be maintained by replacing only the liner 6. For this reason, it is possible to prevent the mold 2 from falling off without replacing the entire metal frame 1 for fresh sand molding equipment as a whole. Therefore, there is an advantage that the casting can be kept in high quality without requiring enormous costs as in the prior art.

１ 生砂造型設備用金枠
１ａ 上枠
１ｂ 下枠
２ 鋳型
３ 金枠内面
６ ライナ
８ ボルト
９ 金枠位置決め用ライナ
１０ 凹溝 DESCRIPTION OF SYMBOLS 1 Metal frame for raw sand molding equipment 1a Upper frame 1b Lower frame 2 Mold 3 Metal frame inner surface 6 Liner 8 Bolt 9 Metal frame positioning liner 10 Concave groove

Claims (3)

鋳型を造型する角柱形状の空洞を形成する金枠内面を、金枠の高さ方向の中央部がくぼんだ凹形状とするとともに、金枠内面の上下方向の端部の一方または双方を、取り換え可能なライナ貼り構造としたことを特徴とする生砂造型設備用金枠。   The inner surface of the metal frame that forms the prismatic cavity that molds the mold has a concave shape with a recessed central portion in the height direction of the metal frame, and one or both of the vertical ends of the inner surface of the metal frame are replaced. A metal frame for fresh sand molding equipment, characterized by having a possible liner pasting structure. 金枠内面の上下方向の端部のうち、上端部のみをライナ貼り構造とした上枠と、上下端部をともにライナ貼り構造とした下枠とからなることを特徴とする請求項１記載の生砂造型設備用金枠。   2. The upper frame in the upper and lower ends of the inner surface of the metal frame comprises an upper frame in which only the upper end portion has a liner bonding structure, and a lower frame in which both upper and lower end portions have a liner bonding structure. Metal frame for green sand molding equipment. 金枠内面の対向する一対の二辺のみをライナ貼り構造としたことを特徴とする請求項１記載の生砂造型設備用金枠。   The metal frame for fresh sand molding equipment according to claim 1, wherein only a pair of opposing two sides of the inner surface of the metal frame has a liner bonding structure.
JP2014026632A 2014-02-14 2014-02-14 Metal frame for green sand molding equipment Active JP6206235B2 (en)

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JP2014026632A JP6206235B2 (en) 2014-02-14 2014-02-14 Metal frame for green sand molding equipment
CN201510066899.1A CN104841892B (en) 2014-02-14 2015-02-09 Greensand mo(u)lding equipment metal flask

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021112772A (en) * 2017-05-26 2021-08-05 メタルエンジニアリング株式会社 Flaskless molding flask

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JPH04113140U (en) * 1991-03-12 1992-10-02 日立金属株式会社 Casting flask
JPH04129554U (en) * 1991-05-15 1992-11-26 日立金属株式会社 Mating button
JPH04134243U (en) * 1991-05-31 1992-12-14 宇部興産株式会社 Casting flask
JPH09225587A (en) * 1996-02-23 1997-09-02 Sintokogio Ltd Device for taking out sand mold
US6015007A (en) * 1998-07-07 2000-01-18 Hunter Automated Machinery Corporation Sand mold shift testing method
JP2002028753A (en) * 2000-07-14 2002-01-29 Metal Eng Kk Method and device for molding casting mold
JP3175734U (en) * 2012-03-08 2012-05-24 東久株式会社 Formless mold making mold

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0447844U (en) * 1990-08-24 1992-04-23
JPH0494134U (en) * 1990-12-21 1992-08-14
JPH04113140U (en) * 1991-03-12 1992-10-02 日立金属株式会社 Casting flask
JPH04129554U (en) * 1991-05-15 1992-11-26 日立金属株式会社 Mating button
JPH04134243U (en) * 1991-05-31 1992-12-14 宇部興産株式会社 Casting flask
JPH09225587A (en) * 1996-02-23 1997-09-02 Sintokogio Ltd Device for taking out sand mold
US6015007A (en) * 1998-07-07 2000-01-18 Hunter Automated Machinery Corporation Sand mold shift testing method
JP2002028753A (en) * 2000-07-14 2002-01-29 Metal Eng Kk Method and device for molding casting mold
JP3175734U (en) * 2012-03-08 2012-05-24 東久株式会社 Formless mold making mold

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021112772A (en) * 2017-05-26 2021-08-05 メタルエンジニアリング株式会社 Flaskless molding flask
JP7064797B2 (en) 2017-05-26 2022-05-11 メタルエンジニアリング株式会社 Frameless molding cast frame

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