JP2005262254A - Method for reusing pattern plate and flaskless molding machine - Google Patents
Method for reusing pattern plate and flaskless molding machine Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000000465 moulding Methods 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 claims abstract description 3
- 238000005266 casting Methods 0.000 claims description 119
- 239000004576 sand Substances 0.000 claims description 62
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000013459 approach Methods 0.000 claims description 2
- 239000003110 molding sand Substances 0.000 claims 2
- 238000000926 separation method Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 12
- 230000007246 mechanism Effects 0.000 description 49
- 238000007664 blowing Methods 0.000 description 14
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- 238000000605 extraction Methods 0.000 description 14
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- 229910052751 metal Inorganic materials 0.000 description 3
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- 239000002184 metal Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
Description
本発明は、一面のみにパターンを備えたパターンプレートを再使用する方法及び無枠式鋳型造型機に関する。 The present invention relates to a method of reusing a pattern plate having a pattern only on one surface and a frameless mold making machine.
従来、自動又は半自動のジョルト式造型機、スクイズ式造型機、縦型のブロー・スクイズ式無枠造型機などでは、片枠専用パターンプレートが用いられている（例えば、特許文献1参照）。
これらの片枠専用パターンプレートのみを使用できる造型機を更新する場合、パターン改造のコストを最小限にするため、更新前の片枠専用パターンプレートのみを使用できる造型機に更新するのが通常である。
しかし、片枠専用パターンプレートのみを使用できる造型機は、造型スピードが遅く、造型ラインが大掛かりになる場合が多い。
そこで、造型スピードが速く、造型ラインがコンパクトになる片枠専用パターンプレートを再使用する方法が待ち望まれていた。
Conventionally, an automatic or semi-automatic Jolt type molding machine, a squeeze type molding machine, a vertical blow / squeeze type frameless molding machine, etc., use a pattern plate exclusively for one frame (see, for example, Patent Document 1).
When updating a molding machine that can use only these single-frame pattern plates, it is normal to update to a molding machine that can use only the single-frame pattern plate before the update in order to minimize the cost of pattern modification. is there.
However, a molding machine that can use only a single-frame pattern plate has a slow molding speed and often requires a large molding line.
Therefore, a method of reusing a single-frame pattern plate that has a high molding speed and a compact molding line has been awaited.
本発明は上記の技術的背景に鑑みなされたものであり、片枠専用パターンプレートを再使用する方法及びそれに用いる無枠式鋳型造型機を提供することを目的とする。 The present invention has been made in view of the above technical background, and an object thereof is to provide a method of reusing a single-frame pattern plate and a frameless mold making machine used therefor.
上記の目的を達成するために本発明におけるパターンプレートの再使用方法は、一面のみにパターンを備えたパターンプレートを再使用する方法であって、上鋳枠専用のパターンプレートと下鋳枠専用のパターンプレートの背面同士を対向させて組み合わせてマッチプレートを製造する工程と、該マッチプレートを無枠式鋳型造型機で使用する工程と、を有することを特徴とする。 In order to achieve the above object, the method of reusing a pattern plate in the present invention is a method of reusing a pattern plate having a pattern only on one side, and is a pattern plate dedicated to the upper casting frame and a pattern plate dedicated to the lower casting frame. It has the process of manufacturing a match plate by making the back surfaces of a pattern plate face each other, and using the match plate in a frameless mold making machine.
一方、上記の目的を達成するために本発明におけるパターンプレートの再使用方法に用いる無枠式鋳型造型機は、端開口部を対向して配置された２個の鋳枠間にマッチプレートを挾持すると共に該２個の鋳枠の他端開口部にスクイズプレートを嵌合して２個一対の鋳型造型空間を画成し、該一対の鋳型造型空間内に前記対向して配置された２個の鋳枠周壁に設けられた砂供給口を通じて鋳物砂を空気により充填すると共に前記スクイズプレートにより鋳物砂を圧縮して２個の鋳型を造型する無枠式鋳型造型機において、
前記マッチプレートの厚みに応じて少なくとも一方の鋳枠自体を移動させる駆動手段と、該鋳枠周壁に設けられた砂供給口の位置を移動させると共に該移動させられた砂供給口の位置に合わせて少なくとも一方のホッパ若しくはホッパノズルを移動させる駆動手段と、を具備したことを特徴とする。
On the other hand, in order to achieve the above object, the frameless mold making machine used in the method of reusing a pattern plate according to the present invention holds a match plate between two casting frames arranged so that the end openings are opposed to each other. At the same time, a squeeze plate is fitted to the other end openings of the two casting frames to define two pairs of mold making spaces, and the two pieces arranged opposite to each other in the pair of mold making spaces In a frameless mold making machine that fills casting sand with air through a sand supply port provided on the peripheral wall of the casting frame and compresses the casting sand with the squeeze plate to form two molds,
The driving means for moving at least one casting frame itself according to the thickness of the match plate, and the position of the sand supply port provided on the peripheral wall of the casting frame are moved and adjusted to the position of the moved sand supply port. Driving means for moving at least one hopper or hopper nozzle.
本発明において、片枠専用パターンプレートとは、上鋳枠若しくは下鋳枠専用の一面のみにパターンを備えたパターンプレートをいう。マッチプレートとは、見切り面によって上型・下型に分割された模型を、上面・下面に取り付けた板状部材を有するパターンプレートをいう。また、パターンプレートは木製、鉄系金属製、アルミ系金属製若しくは複合材料製のいずれでもよい。 In the present invention, the pattern plate dedicated to one frame refers to a pattern plate provided with a pattern only on one surface dedicated to the upper or lower casting frame. The match plate is a pattern plate having a plate-like member in which a model divided into an upper die and a lower die by a parting surface is attached to the upper surface and the lower surface. The pattern plate may be made of wood, iron-based metal, aluminum-based metal, or composite material.
本発明において、無枠式鋳型造型機とは、造型時の金枠を造型済み鋳型から抜いた後に注湯する鋳型を造型する造型機をいう。また、鋳型に用いられる鋳物砂は生砂を用いる。 In the present invention, the frameless mold molding machine refers to a molding machine that molds a mold to be poured after the metal frame at the time of molding is pulled out from the molded mold. Moreover, green sand is used for the foundry sand used for the mold.
本発明によれば、片枠専用パターンプレートを、1つのマッチプレート式の無枠式鋳型造型機で使用するため、造型スピードが速く、造型ラインがコンパクトになる。
また、本発明におけるパターンプレートの再使用方法において、前記マッチプレートの厚みが変わった場合においても、一対の筒状の枠体形状の鋳枠自体を前記マッチプレートの方向に移動させることにより、該鋳枠周壁に設けられた砂供給口の位置を移動させ、該移動させられる砂供給口の位置に合わせてホッパノズルを移動させて、厚さの異なる前記マッチプレートを使用することができる。本発明の構成によれば、片枠専用パターンプレートの厚みが異なる場合でも、同じ造型機で造型が可能である。
According to the present invention, the pattern plate dedicated for one frame is used in one match plate type frameless mold making machine, so that the molding speed is fast and the molding line is compact.
Further, in the method of reusing a pattern plate in the present invention, even when the thickness of the match plate is changed, by moving a pair of cylindrical frame-shaped casting frames themselves in the direction of the match plate, The match plates having different thicknesses can be used by moving the position of the sand supply port provided on the peripheral wall of the casting frame and moving the hopper nozzle in accordance with the position of the moved sand supply port. According to the configuration of the present invention, even when the thickness of the single-frame pattern plate is different, molding can be performed with the same molding machine.
ここで、本発明におけるパターンプレートの再使用方法において、上鋳枠専用のパターンプレートと下鋳枠専用のパターンプレートの背面同士を対向させて組み合わせた板状部材が、パターンプレートの底面を相互に接触させて組み合わせてもよい。
また、本発明におけるパターンプレートの再使用方法において、上鋳枠専用のパターンプレートと下鋳枠専用のパターンプレートの背面同士を対向させて組み合わせた板状部材が、その中央に空間を有しており、この空間に対して前記パターンプレートの底面が相互に組み合わされ該底面から前記パターン側に通気口を設けてもよい。
また、本発明におけるパターンプレートの再使用方法において、複数の造型機で使っていた片枠専用パターンプレートを、1つのマッチプレート式の造型機で使用してもよい。このようにすることによって、造型機を減らすこともでき、生産性が高くなり、省エネルギにもつながる。
Here, in the method for reusing a pattern plate in the present invention, the plate-like members that are combined with the back surfaces of the pattern plate dedicated to the upper casting frame and the pattern plate dedicated to the lower casting frame facing each other, You may make it contact and combine.
Moreover, in the reuse method of the pattern plate in this invention, the plate-shaped member which combined the pattern plate for exclusive use of the upper casting frame and the pattern plate for exclusive use of the lower casting frame facing each other has a space in the center. In this space, the bottom surfaces of the pattern plates may be combined with each other, and a vent hole may be provided from the bottom surface to the pattern side.
In the method of reusing a pattern plate in the present invention, the single-frame pattern plate used in a plurality of molding machines may be used in one match plate type molding machine. By doing in this way, a molding machine can also be reduced, productivity becomes high and it leads also to energy saving.
さらに、本発明におけるパターンプレートの再使用方法において、造型機は、一端開口部を対向して配置された２個の鋳枠間にマッチプレートを挾持すると共に該２個の鋳枠の他端開口部にスクイズプレートを嵌合して２個一対の鋳型造型空間を画成し、該一対の鋳型造型空間内に前記対向して配置された２個の鋳枠周壁に設けられた砂供給口を通じて鋳物砂を空気により充填すると共に前記スクイズプレートにより鋳物砂を圧縮して２個の鋳型を造型する無枠式鋳型造型機とすることができる。このようなマッチプレートを使用できる無枠式鋳型造型機は、造型スピードが速い、造型ラインがコンパクトになるというメリットがある。 Further, in the method for reusing a pattern plate in the present invention, the molding machine holds the match plate between two casting frames arranged so that one end openings are opposed to each other and opens the other ends of the two casting frames. A pair of mold making spaces is defined by fitting squeeze plates to the sections, and through sand supply ports provided in the two peripheral walls of the casting frame disposed opposite to each other in the pair of mold making spaces. It is possible to provide a frameless mold making machine that fills the foundry sand with air and compresses the foundry sand with the squeeze plate to form two molds. The frameless mold making machine that can use such a match plate has the advantages of a high molding speed and a compact molding line.
また、本発明にかかる無枠式鋳型造型機は、マッチプレートの厚みを計測する厚み計測手段を更に設けてもよい。この構成によればより確実に、マッチプレートを再使用できる。
さらに、本発明にかかる無枠式鋳型造型機は、ホッパが複数であり、該ホッパの各々に駆動手段を具備してもよい。本発明によれば、鋳型を上下別の条件で造型ができ、片枠専用パターンプレートに近い条件を実現できる。加えて、本発明にかかる無枠式鋳型造型機は、ホッパが単数であり、該ホッパの下部に複数の移動可能なホッパノズルと、該ホッパノズルの駆動手段と、を更に設けても良い。
The frameless mold making machine according to the present invention may further include a thickness measuring means for measuring the thickness of the match plate. According to this configuration, the match plate can be reused more reliably.
Furthermore, the frameless mold making machine according to the present invention may have a plurality of hoppers, and each of the hoppers may be provided with a driving means. According to the present invention, the mold can be formed under different conditions, upper and lower, and conditions close to those of the single-frame dedicated pattern plate can be realized. In addition, the frameless mold making machine according to the present invention may have a single hopper, and may further include a plurality of movable hopper nozzles and driving means for the hopper nozzles below the hopper.
さらに、本発明におけるパターンプレートの再使用方法及び本発明にかかる無枠式鋳型造型機において、スクイズプレートは、複数のスクイズフットにて構成され、このスクイズフットがシリンダなどの駆動方法によって個別に出し入れ可能である構成を成しても良い。 Further, in the pattern plate reuse method according to the present invention and the frameless mold making machine according to the present invention, the squeeze plate is composed of a plurality of squeeze feet, and each squeeze foot is individually put in and out by a driving method such as a cylinder. A possible configuration may be made.
本発明を適用したパターンプレートの再使用方法の一実施例について図１０，図１１及び図１２に基づき説明する。
図１０に示すように、無枠式鋳型造型機で使用するマッチプレート１０１は、枠付造型機で使用された上鋳枠専用のパターンプレート１０２と、下鋳枠専用のパターンプレート１０３とから構成される。前記各パターンプレート１０２，１０３の背面同士を対向させ組み合わせることにより、マッチプレート１０１として使用する。
前記パターンプレート１０２，１０３の締結方法はボルト締めによる方法が一般的であるが、溝の組み合わせによる嵌め合わせや、蝶番による締結、ハッカによる締結などその方法は限定しない。
An embodiment of a method for reusing a pattern plate to which the present invention is applied will be described with reference to FIGS. 10, 11 and 12. FIG.
As shown in FIG. 10, the match plate 101 used in the frameless mold making machine is composed of a pattern plate 102 dedicated to the upper casting frame used in the frame molding machine and a pattern plate 103 dedicated to the lower casting frame. Is done. The match plates 101 are used by combining the back surfaces of the pattern plates 102 and 103 to face each other.
The fastening method of the pattern plates 102 and 103 is generally a bolt fastening method, but the method is not limited, such as fitting by a combination of grooves, fastening by a hinge, fastening by a cracker.
図１１に示すのは、前記上鋳枠専用のパターンプレート１０２と前記下鋳枠専用のパターンプレート１０３の背面に彫り込みを作成後、各パターンプレート１０２，１０３の背面同士を対向させ組み合わせることにより、マッチプレート１０１として使用する例である。
前記パターンプレート１０２，１０３の背面に彫り込みを作成し、組み合わせることにより、前記マッチプレート１０１の中央に空間１０４が設けられる。この空間１０４からは、該パターンプレート１０２，１０３のパターン側に連通する通気口１０５が開けられ、該通気口１０５のパターン側の面にはベントプラグ１０６が打ち込まれている。
また、マッチプレート１０１の周壁には前記空間１０４から外部に連通する連通孔１０７が開けられている。
As shown in FIG. 11, after creating the engraving on the back surface of the pattern plate 102 dedicated to the upper casting frame and the pattern plate 103 dedicated to the lower casting frame, by combining the back surfaces of the pattern plates 102 and 103 to face each other, This is an example used as a match plate 101.
A space 104 is provided in the center of the match plate 101 by creating and combining engravings on the back surfaces of the pattern plates 102 and 103. From this space 104, a vent hole 105 communicating with the pattern side of the pattern plates 102 and 103 is opened, and a vent plug 106 is driven into the pattern side surface of the vent hole 105.
A communication hole 107 communicating from the space 104 to the outside is formed in the peripheral wall of the match plate 101.
図１２に示すのは、前記マッチプレート１０１を図１に示す本発明を適用した造型装置に組み込んだ場合を示す。
前記マッチプレート１０１は周壁に砂吹込み口をそれぞれ有する上・下鋳枠２，３により挟持され、前記上・下鋳枠２，３における前記マッチプレート１０１が無いそれぞれの開口部に上・下スクイズプレート６，７がそれぞれ入出可能に設けられている。
FIG. 12 shows a case where the match plate 101 is incorporated in a molding apparatus to which the present invention shown in FIG. 1 is applied.
The match plate 101 is sandwiched between upper and lower casting frames 2 and 3 each having a sand blowing port on a peripheral wall, and the upper and lower casting frames 2 and 3 have upper and lower openings at respective openings where the match plate 101 is not present. Squeeze plates 6 and 7 are provided so as to be able to enter and exit respectively.
本発明を適用した無枠式鋳型造型機の一実施例について図１〜図９に基づき詳細に説明する。図１〜図３に示すように、本無枠式鋳型造型機は、内部に空間を形成した直方体状の機台１と、周壁に砂吹込み口をそれぞれ有する２対の上・下鋳枠２，３，２，３と；これら２対の上・下鋳枠２，３，２，３のうち１対の上・下鋳枠２，３の間に搬入出機構４によって入出可能に配設された前記マッチプレート１０１と同様の構造を持ったマッチプレート５と；前記１対の上・下鋳枠２，３によって前記マッチプレート５を挟持し、前記上・下鋳枠２，３における前記マッチプレート５が無いそれぞれの開口部に上・下スクイズプレート６，７をそれぞれ入出可能に設け、かつ前記マッチプレート５を挟持した前記１対の上・下鋳枠２，３が垂直状態になる位置と水平状態になる位置の間を前記機台１に設けた支持軸８を中心にして垂直面内で正逆回転可能にして支持した鋳物砂スクイズ機構９と；この鋳物砂スクイズ機構９を正逆回転させる回転駆動機構としての横向きのシリンダ１０と；このシリンダ１０の伸長作動によって垂直状態にある前記１対の上・下鋳枠２，３に対して前記砂吹込み口の位置に対してホッパノズルの位置を移動できる機構を持ち、該砂吹込み口から鋳物砂を吹き込む砂吹込み機構１１と；重ね合わせられかつ水平状態にある上・下鋳型内在の前記１対の上・下鋳枠２，３から前記上・下鋳型を抜き出す鋳型抜出し機構１２と；前記１対の上・下鋳枠２，３が水平状態にある前記鋳物砂スクイズ機構９と前記鋳型抜出し機構１２の間を、１対ずつ上下に連なって水平に並ぶ水平状態の２対の前記上・下鋳枠２，３を交互にして間欠的に旋回させかつ前記上鋳枠２を掛止して昇降可能な鋳枠旋回機構１３と；で構成してある。 One embodiment of a frameless mold making machine to which the present invention is applied will be described in detail with reference to FIGS. As shown in FIGS. 1 to 3, the frameless mold making machine includes two pairs of upper and lower casting frames each having a rectangular parallelepiped machine base 1 having a space formed therein and a sand blowing port on a peripheral wall. 2, 3, 2, and 3; between these two pairs of upper and lower casting frames 2, 3, 2, 3, between the pair of upper and lower casting frames 2, 3, the loading / unloading mechanism 4 can be placed in and out. A match plate 5 having the same structure as the match plate 101 provided; the match plate 5 is sandwiched between the pair of upper and lower casting frames 2 and 3; Upper and lower squeeze plates 6 and 7 are provided in respective openings where the match plate 5 is not provided so as to be able to enter and exit, and the pair of upper and lower casting frames 2 and 3 holding the match plate 5 are in a vertical state. A vertical plane centering on the support shaft 8 provided on the machine base 1 between the position to be horizontal and the position to be horizontal A foundry sand squeeze mechanism 9 supported so as to be able to rotate in the forward and reverse directions; a lateral cylinder 10 as a rotational drive mechanism for rotating the foundry sand squeeze mechanism 9 forward and backward; A sand blowing mechanism 11 having a mechanism capable of moving the position of the hopper nozzle relative to the position of the sand blowing port with respect to the pair of upper and lower casting frames 2 and 3, and for blowing casting sand from the sand blowing port; A mold extraction mechanism 12 for extracting the upper and lower molds from the pair of upper and lower casting frames 2 and 3 in the upper and lower molds which are superimposed and in a horizontal state; and the pair of upper and lower casting frames Between the casting sand squeeze mechanism 9 and the mold extraction mechanism 12 in which 2 and 3 are in a horizontal state, two pairs of the upper and lower casting frames 2 and 3 in a horizontal state are arranged in a row continuously in pairs. Alternately and intermittently swivel and forward The the cope flask 2 hooking to a vertically movable molding flask turning mechanism 13; are constituted by.
そして、前記２対の上・下鋳枠２，３，２，３のそれぞれの上・下鋳枠２，３においては、図１に示すように、前記上鋳枠２の前後外側面に垂設した一対の連結杆１４，１４間に前記下鋳枠３を摺動自在にして架装し、さらに下鋳枠３を前記一対の連結杆１４，１４の下端位置で掛止するようになっており、さらに、前記上鋳枠２の前後外面の中央部および前記鋳物砂スクイズ機構９側の位置にある時における前記下鋳枠３の前後外面の右寄り位置に突起部２ａ，２ａ，３ａ，３ａをそれぞれ設けてある。 In each of the upper and lower casting frames 2, 3 of the two pairs of upper and lower casting frames 2, 3, 2, 3, as shown in FIG. The lower casting frame 3 is slidably mounted between the pair of connecting rods 14, 14, and the lower casting frame 3 is hooked at the lower end position of the pair of connecting rods 14, 14. In addition, the protrusions 2a, 2a, 3a, and the right side of the front and rear outer surfaces of the lower casting frame 3 when located at the center of the front and rear outer surfaces of the upper casting frame 2 and the position of the casting sand squeeze mechanism 9 side, 3a is provided.
また、前記マッチプレート５の搬入出機構４は、図１に示すように、前記鋳物砂スクイズ機構９の前記支持軸８に環装したリング部材１５と、前記砂吹込み機構１１に枢支しかつピストンロッドの先端を前記リング部材１５の一部と回動自在に連接したシリンダ１６と、基端が前記リング部材１５に固着した片持ち構造の１対のアーム１７，１７と、前記マッチプレート５を載せて左右方向へ往復動自在な吊下げ型の台車４５と、で構成してあって、前記シリンダ１６の伸縮作動により前記１対のアーム１７，１７が上下回動して、前記台車４５は、後述のレール４６，４７，４７を介して前記鋳物砂スクイズ機構９における水平状態の前記１対の上・下鋳枠２，３間に前記マッチプレート５を搬入・搬出させることができるようになっている（図５〜図７参照）。また、前記上鋳枠２を介して台車４５を短い所要長さ下降させながら前記シリンダ１６の伸縮作動により前記１対のアーム１７，１７が上下回動することにより、アーム１７，１７を台車４５に連結したり、連結状態を解くことができるようになっている。 Further, as shown in FIG. 1, the carry-in / out mechanism 4 for the match plate 5 is pivotally supported by a ring member 15 that is mounted around the support shaft 8 of the foundry sand squeeze mechanism 9 and the sand blowing mechanism 11. And a cylinder 16 having a piston rod tip rotatably connected to a part of the ring member 15, a pair of cantilevered arms 17, 17 whose base ends are fixed to the ring member 15, and the match plate And a pair of hanging trolleys 45 that can reciprocate in the left and right directions, and the pair of arms 17 and 17 are rotated up and down by the expansion and contraction operation of the cylinder 16 so that the trolley 45 can carry in and out the match plate 5 between the pair of upper and lower casting frames 2 and 3 in the horizontal state in the foundry squeeze mechanism 9 via rails 46, 47 and 47 which will be described later. Like (See FIGS. 5 to 7). Further, the pair of arms 17 and 17 are rotated up and down by the expansion and contraction operation of the cylinder 16 while lowering the carriage 45 through the upper casting frame 2 for a short required length, whereby the arms 17 and 17 are moved to the carriage 45. Can be connected to each other and the connected state can be solved.
また、前記マッチプレート５の厚みを計測する図示しない厚み計測手段を追加することにより、厚みの異なるマッチプレートの搬入が行われても、前記上・下鋳枠２，３の砂吹込み口の位置をあらかじめ特定できるため、前記砂吹込み機構１１のホッパノズルの位置の移動を確実に行うことができる。 Further, by adding a thickness measuring means (not shown) for measuring the thickness of the match plate 5, even if the match plates having different thicknesses are carried in, the sand blowing ports of the upper and lower casting frames 2 and 3 are provided. Since the position can be specified in advance, the position of the hopper nozzle of the sand blowing mechanism 11 can be reliably moved.
また、前記鋳物砂スクイズ機構９においては、図１に示すように、前記機台１の上部の中央に装着した前記支持軸８に前記回転フレーム１８が中心付近にて垂直面内で正逆回転自在に枢支して設けてあり、この回動フレーム１８の右側面には上下方向へ延びる一対のガイドロッド１９，１９が前後方向へ所要の間隔をおいて装着してある。この一対のガイドロッド１９，１９間における上部には逆Ｌ字状の上昇降フレーム２０が、また、前記一対のガイドロッド１９，１９間における下部にはＬ字状の下昇降フレーム２１が、一体的に設けたホルダー部を介しそれぞれ摺動自在にして架装してあり、これら上・下昇降フレーム２０，２１は前記回転フレーム１８に装着した上向きシリンダ２２および下向きシリンダ２３の伸縮作動によって相互に接近・離隔するようになっている。また、前記回転フレーム１８には前記１対の上・下鋳枠２，３が水平状態にある時に前記台車４５を誘導するレール４６が装着してある。さらに、前記上鋳枠２，２のそれぞれには、これらが上昇した時に搬送レベルが前記レール４６のそれと同一になる前記台車４５の誘導用レール４７が装着してある（図５〜図７参照）。 Further, in the foundry sand squeeze mechanism 9, as shown in FIG. 1, the rotating frame 18 rotates forward and backward in a vertical plane near the center on the support shaft 8 mounted at the upper center of the machine base 1. A pair of guide rods 19, 19 extending in the vertical direction are mounted on the right side surface of the rotating frame 18 at a predetermined interval in the front-rear direction. An inverted L-shaped upper lifting frame 20 is formed at the upper part between the pair of guide rods 19, 19, and an L-shaped lower lifting frame 21 is formed at the lower part between the pair of guide rods 19, 19. These upper and lower lifting frames 20 and 21 are slidably mounted via respective holder portions, and these upper and lower lifting frames 20 and 21 are mutually connected by an expansion and contraction operation of an upward cylinder 22 and a downward cylinder 23 mounted on the rotary frame 18. It approaches and separates. The rotating frame 18 is provided with a rail 46 for guiding the cart 45 when the pair of upper and lower casting frames 2 and 3 are in a horizontal state. Further, each of the upper casting frames 2 and 2 is provided with a guide rail 47 of the carriage 45 whose transport level is the same as that of the rail 46 when they are raised (see FIGS. 5 to 7). ).
また、前記上昇降フレーム２０には前記上スクイズプレート６を進退させる複数のシリンダ２４，２４が、また、前記下昇降フレーム２１には前記下スクイズプレート７を進退させる複数のシリンダ２５，２５がそれぞれ装着してある。また、前記上・下昇降フレーム２０，２１のそれぞれの水平状の上面は前記上・下鋳枠２，３をそれぞれ押すことができる大きさを有している。 The upper elevating frame 20 has a plurality of cylinders 24, 24 for moving the upper squeeze plate 6 back and forth, and the lower elevating frame 21 has a plurality of cylinders 25, 25 for moving the lower squeeze plate 7 back and forth. It is attached. Further, the horizontal upper surfaces of the upper and lower elevating frames 20 and 21 have a size capable of pushing the upper and lower casting frames 2 and 3 respectively.
また、前記砂充填機構１１は、前記機台１の天井部の左寄り位置に装着してあり、さらに２個のホッパ２７，２７によって構成してあって前記上・下鋳枠２，３にそれぞれ独立して鋳物砂を低圧圧縮空気圧で充填（エアレーション充填）するようになっている。なお、低圧圧縮空気の圧力の大きさは０．０５MPa〜０．１８MPaが好ましい。さらに、図示していない減圧源と接続して大気圧より低い空気を合わせて用いることもできる。また、前記ホッパ２７，２７はそれぞれ独自に充填作動させることなく同時に若しくは同一の制御により充填作動することもできる。 The sand filling mechanism 11 is mounted on the left side of the ceiling portion of the machine base 1 and is composed of two hoppers 27 and 27. Independently, the foundry sand is filled with low pressure compressed air pressure (aeration filling). The pressure of the low-pressure compressed air is preferably 0.05 MPa to 0.18 MPa. Further, it is possible to use a pressure lower than the atmospheric pressure by connecting to a decompression source (not shown). Further, the hoppers 27 and 27 can be filled at the same time or under the same control without being independently filled.
図８は、ホッパ２７ａ，２７ａを各個独立に駆動させる駆動手段であるシリンダ５０を具備している。ホッパ２７ａ，２７ａ及び該ホッパ２７ａ，２７ａの下端に設けられ、前記上・下鋳枠２，３の周壁に設けられた砂供給口と当接するホッパノズル２７ｂ，２７ｂは前記シリンダ５０により、前記マッチプレート５の厚みの変化による前記上・下鋳枠２，３の周壁に設けられた砂供給口の位置に合わせて移動可能となる。 FIG. 8 includes a cylinder 50 which is a driving means for independently driving the hoppers 27a and 27a. Hopper nozzles 27b, 27b, which are provided at the lower ends of the hoppers 27a, 27a and the hoppers 27a, 27a and are in contact with the sand supply ports provided on the peripheral walls of the upper and lower casting frames 2, 3, are connected to the match plate by the cylinder 50. 5 can be moved according to the position of the sand supply port provided on the peripheral walls of the upper and lower casting frames 2 and 3 due to the change in thickness.
また、前記鋳型抜出し機構１２においては、上下に重なった水平状態の前記上・下鋳枠２，３内に進入可能な抜出し板２８が、前記機台１の天井部に装着した下向きシリンダ２９のピストンロットの下端に固着してあって、前記抜出し板２８は前記シリンダ２９の伸縮作動により昇降するようになっている。また、前記抜出し板２８の真下には前記上・下鋳枠２，３から抜き出された上下鋳型を受ける鋳型受けテーブル３０が昇降可能にして配設してあり、鋳型受けテーブル３０はシリンダ３１の伸縮作動により伸縮するパンダグラフ３２によって昇降するようになっている。なお、このパンダグラフ３２を用いることにより、ピットを設ける必要がなくなる（図２参照）。 Further, in the mold extraction mechanism 12, an extraction plate 28 that can enter the upper and lower casting frames 2, 3 that are in a horizontal state overlapped vertically is provided with a downward cylinder 29 attached to the ceiling portion of the machine base 1. The extraction plate 28 is fixed to the lower end of the piston lot, and is moved up and down by the expansion and contraction operation of the cylinder 29. A mold receiving table 30 for receiving the upper and lower molds extracted from the upper and lower casting frames 2 and 3 is disposed directly below the extraction plate 28 so as to be movable up and down. The panda graph 32 that expands and contracts by the expansion and contraction operation of the head is moved up and down. By using this panda graph 32, there is no need to provide pits (see FIG. 2).
また、前記鋳枠旋回機構１３においては、上下方向へ指向する回転軸３３が前記機台１に水平回転自在にして装着してあり、前記回転軸３３の上端には前記機台１の天井に装着したモータ３４の出力軸が連結してあって、前記回転軸３３は前記モータ３４の駆動により１８０度正逆回転するようになっている。そして、前記回転軸３３の上部には支持部材３５が装着してあり、支持部材３５には下方へ延びかつ前後方向へ所要の間隔をおいて対を成す２対のガイドロッド３６，３６が垂設してあり、これら２対のガイドロッド３６，３６は前記回転軸３３を中心にして左右に対向している。また、前記２対のガイドロッド３６，３６のそれぞれの対には、前記上鋳枠２の突起部２ａ，２ａを掛止可能な上掛止部材３７が上下摺動自在にして架装してあり、各上掛止部材３７には前記回転軸３３に装着した上向きシリンダ３８のピストンロットの先端が固着してあって、各上掛止部材３７はシリンダ３８の伸縮作動によって昇降するようになっている。さらに、前記２対のガイドロッド３６，３６の下端には前記２個の下鋳枠３，３の突起部３ａ，３ａを掛止可能な下掛止部材３９が固着してある。
なお、図中符号４０は前記上・下鋳枠２，３内から抜き出された上・下鋳型を鋳型受けテーブル３０上から抜き出す鋳型排出装置である。
Further, in the casting frame turning mechanism 13, a rotary shaft 33 oriented in the vertical direction is mounted on the machine base 1 so as to be horizontally rotatable, and the upper end of the rotary shaft 33 is attached to the ceiling of the machine base 1. The output shaft of the mounted motor 34 is connected, and the rotating shaft 33 is rotated forward and reverse by 180 degrees by driving the motor 34. A support member 35 is mounted on the rotating shaft 33, and two pairs of guide rods 36, 36 extending downward and forming a pair at a predetermined interval in the front-rear direction are suspended on the support member 35. These two pairs of guide rods 36 and 36 are opposed to the left and right with the rotary shaft 33 as the center. Further, an upper hooking member 37 capable of hooking the protrusions 2a, 2a of the upper casting frame 2 is slidably mounted on each pair of the two pairs of guide rods 36, 36. In addition, the tip of the piston lot of the upward cylinder 38 attached to the rotary shaft 33 is fixed to each upper latch member 37, and each upper latch member 37 is moved up and down by the expansion and contraction operation of the cylinder 38. ing. Further, a lower latching member 39 capable of latching the projections 3a, 3a of the two lower cast frames 3, 3 is fixed to the lower ends of the two pairs of guide rods 36, 36.
Reference numeral 40 in the figure denotes a mold discharge device for extracting the upper and lower molds extracted from the upper and lower casting frames 2 and 3 from the mold receiving table 30.
次に、このように構成した無枠式鋳型造型機を用いて図１で示す状態から鋳枠無し上・下鋳型を造型する手順について説明する。まず、搬入出機構４のシリンダ１６を伸長作動して１対のアーム１７，１７によってマッチプレート５を水平状態の１対の上・下鋳枠２，３間に搬入し、続いて、シリンダ３８の伸縮作動により上鋳枠２を短い長さ上下動させながら、搬入出機構４のシリンダ１６の収縮作動により１対のアーム１７，１７を時計回り方向へ回動させて１対のアーム１７，１７の台車４５への連結状態を解くとともにアーム１７，１７を元に戻す。 Next, a procedure for forming the upper and lower molds without the casting frame from the state shown in FIG. 1 using the frameless mold making machine configured as described above will be described. First, the cylinder 16 of the loading / unloading mechanism 4 is extended and the match plate 5 is loaded between the pair of upper and lower casting frames 2 and 3 in a horizontal state by the pair of arms 17 and 17. The pair of arms 17, 17 are rotated clockwise by the contraction operation of the cylinder 16 of the loading / unloading mechanism 4 while the upper casting frame 2 is moved up and down by a short length by the expansion / contraction operation of the pair of arms 17, The connection state of 17 to the carriage 45 is released and the arms 17 and 17 are returned to their original positions.
次いで、鋳物砂スクイズ機構９の上向きシリンダ２２および下向きシリンダ２３の収縮作動して上・下昇降フレーム２０，２１を介して上・下鋳枠２，３を相互に接近させ、上・下鋳枠２，３によってマッチプレート５を挟持しながら、鋳物砂スクイズ機構１０の複数のシリンダ２４，２４，２５，２５をそれぞれ所要長さ伸長作動して上スクイズプレート６および下スクイズプレート７を上・下鋳枠２，３内に所要長さ挿入して上・下２個の造型空間を画成しながら、シリンダ１０を伸長作動して鋳物砂スクイズ機構９を支持軸８を中心にして時計回り方向へ回転させて１対の上・下鋳枠２，３およびマッチプレート５を垂直状態にするとともに砂吹込み口を上方に移動させ、さらに、砂吹込み機構１１の２個のホッパ２７，２７の下端にその砂吹込み口をそれぞれ当接させる（図４参照）。 Next, the upper and lower casting frames 2 and 3 are brought close to each other via the upper and lower lifting frames 20 and 21 by the contraction operation of the upward cylinder 22 and the downward cylinder 23 of the foundry sand squeeze mechanism 9. While holding the match plate 5 between 2 and 3, the cylinders 24, 24, 25 and 25 of the foundry sand squeeze mechanism 10 are operated to extend the required lengths to move the upper squeeze plate 6 and the lower squeeze plate 7 up and down. While inserting the required length into the casting frames 2 and 3 to define two upper and lower molding spaces, the cylinder 10 is extended to move the foundry sand squeeze mechanism 9 about the support shaft 8 in the clockwise direction. And the pair of upper and lower casting frames 2 and 3 and the match plate 5 are brought into a vertical state, the sand blowing port is moved upward, and the two hoppers 27 and 27 of the sand blowing mechanism 11 are further moved. At the bottom of Sand blowing port is allowed to contact each (see FIG. 4).
次いで、砂吹込み口から上・下２個の造型空間に砂吹込み機構１１によって鋳物砂を吹込み充填し、続いて、１対の上・下鋳枠２，３およびマッチプレート５を水平状態に戻しながら上・下スクイズプレート６，７をさらに進入して前記上・下２個の造型空間内の鋳物砂をそれぞれスクイズする。次いで、上向きシリンダ２２および下向きシリンダ２３の伸長作動して上・下昇降フレーム２０，２１を相互に離隔する。 Next, the sand blowing mechanism 11 blows and fills the molding space into two upper and lower molding spaces from the sand blowing port, and then the pair of upper and lower casting frames 2 and 3 and the match plate 5 are horizontally placed. While returning to the state, the upper and lower squeeze plates 6 and 7 are further advanced to squeeze the foundry sand in the two upper and lower molding spaces. Then, the upward and downward cylinders 22 and 23 are extended to separate the upper and lower lifting frames 20 and 21 from each other.
次いで、鋳枠旋回機構１３のシリンダ３８を伸長作動して、鋳物砂をスクイズして成る鋳型を内在した上鋳枠２を上掛止部材３７によって吊り上げるとともにマッチプレート５から分離し、下鋳枠３を鋳枠旋回機構１３の下掛止部材３９上にそれぞれ載せ、続いて、シリンダ１６を収縮作動して１対のアーム１７，１７によってマッチプレート５を上・下鋳枠２，３間から搬出する。次いで、鋳枠旋回機構１３のモータ３４の駆動により回転軸３３を所要角度回転させて鋳型内在の上・下鋳枠２，３を鋳型抜出し機構１２まで旋回移動し、続いて、必要なら鋳型に中子をセットした後、シリンダ３８の収縮作動により鋳型内在の上鋳枠２を上掛止部材３７を介して下降させて下鋳枠３に重ね合せる。 Next, the cylinder 38 of the casting frame turning mechanism 13 is extended to lift the upper casting frame 2 containing the mold formed by squeezing the foundry sand by the upper hooking member 37 and separated from the match plate 5. 3 is placed on the lower stop member 39 of the casting frame turning mechanism 13, and then the cylinder 16 is contracted to move the match plate 5 between the upper and lower casting frames 2, 3 by a pair of arms 17, 17. Take it out. Next, the rotation shaft 33 is rotated by a required angle by driving the motor 34 of the casting frame turning mechanism 13 to turn the upper and lower casting frames 2 and 3 in the mold to the casting mold removal mechanism 12, and then to the mold if necessary. After the core is set, the upper casting frame 2 contained in the mold is lowered through the upper retaining member 37 by the contraction operation of the cylinder 38 and overlapped with the lower casting frame 3.
次いで、鋳型抜出し機構１２のシリンダ３１の伸長作動により鋳型受けテーブル３０を上昇させて鋳型受けテーブル３０上に鋳型内在の上・下鋳枠２，３を載せ、続いて、鋳型抜出し機構１２のシリンダ２９を伸長作動して抜出し板２８を上鋳枠２の鋳型上に当接した後、シリンダ３１を収縮作動して抜出し板２８および鋳型受けテーブル３０を相互に連動させながら下降させて上・下鋳枠２，３から鋳型を抜き出し、続いて、鋳型排出装置４０によって鋳型受けテーブル３０上の上・下鋳型を押し出す。 Next, the mold receiving table 30 is raised by the extension operation of the cylinder 31 of the mold extracting mechanism 12 to place the upper and lower casting frames 2 and 3 in the mold on the mold receiving table 30, and then the cylinder of the mold extracting mechanism 12 29 is extended to bring the extraction plate 28 into contact with the mold of the upper casting frame 2, and the cylinder 31 is contracted to lower the extraction plate 28 and the mold receiving table 30 while interlocking with each other. The mold is extracted from the casting frames 2 and 3, and then the upper and lower molds on the mold receiving table 30 are pushed out by the mold discharge device 40.
なお、上述した工程のうち、鋳型内在の上・下鋳枠２，３を鋳型抜出し機構１２まで旋回移動するまでに、先行して造型した鋳型に必要なら中子をセットした後、上述したと同様にして鋳型内在の１対の上・下鋳枠２，３を重ね合せ、鋳型を抜き出すようにする。 In addition, among the above-mentioned processes, after the core is set in the previously formed mold before the upper and lower casting frames 2 and 3 in the mold are swung to the mold extraction mechanism 12, the core is set as described above. Similarly, the pair of upper and lower casting frames 2 and 3 in the mold are overlapped to extract the mold.
次に、上述の無枠式鋳型造型機においてマッチプレート５を交換する手順について説明する。まず、図５のａに示すように、鋳枠旋回機構１３のシリンダ３８，３８を伸長作動して、上鋳枠２，２を上掛止部材３７，３７によってそれぞれ吊り上げた後、搬入出機構４のシリンダ１６の伸長作動により１対のアーム１７，１７を反時計回り方向へ回動させてマッチプレート５（Ａ）を載せた台車４５をレール４６から上鋳枠２のレール４７上に移動させ、マッチプレート５（Ａ）を左側の上鋳枠２に搬入し、続いて、図５のｂに示すように、シリンダ３８の伸縮作動により上鋳枠２を短い長さ上下動させながら、搬入出機構４のシリンダ１６の収縮作動により１対のアーム１７，１７を時計回り方向へ回動させて１対のアーム１７，１７の台車４５への連結状態を解くとともにアーム１７，１７を元に戻し、さらに、適宜の搬送装置に装着したレール上に吊り下げられ鋳型抜出し機構１２側で待機しかつ交換すべきマッチプレート５（Ｂ）を搭載した台車４５を、鋳型抜出し機構１２に位置する右側の上鋳枠２のレート４７と対向する位置まで移動させる。 Next, a procedure for exchanging the match plate 5 in the frameless mold making machine described above will be described. First, as shown in FIG. 5a, the cylinders 38 and 38 of the casting frame turning mechanism 13 are extended to lift the upper casting frames 2 and 2 by the upper retaining members 37 and 37, respectively, and then the loading / unloading mechanism. By moving the four cylinders 16, the pair of arms 17 and 17 are rotated counterclockwise to move the carriage 45 on which the match plate 5 (A) is placed from the rail 46 onto the rail 47 of the upper casting frame 2. Then, the match plate 5 (A) is carried into the left upper casting frame 2, and then, as shown in FIG. 5 b, while the upper casting frame 2 is moved up and down by a short length by the expansion and contraction operation of the cylinder 38, By the contraction operation of the cylinder 16 of the loading / unloading mechanism 4, the pair of arms 17, 17 are rotated in the clockwise direction to release the connection state of the pair of arms 17, 17 to the carriage 45, and the arms 17, 17 are To the appropriate transport device. A carriage 45, which is suspended on the attached rail and is waiting on the mold extraction mechanism 12 side and mounted with the match plate 5 (B) to be replaced, is connected to the rate 47 of the upper casting frame 2 on the right side located in the mold extraction mechanism 12. Move to the opposite position.
次いで、図６のａに示すように、鋳型抜出し機構１２に位置する右側の上鋳枠２のレート４７と対向する位置にある台車４５を、この右側の上鋳枠２のレート４７上に人手によって移動させて、右側のマッチプレート５（Ｂ）を右側の上鋳枠２に搬入し、続いて、図６のｂに示すように、鋳枠旋回機構１３のモータ３４を駆動して、鋳物砂スクイズ機構９側に位置する左側のマッチプレート５（Ａ）を鋳型抜出し機構１２の位置に、また鋳型抜出し機構１２に位置する右側のマッチプレート５（Ｂ）を鋳物砂スクイズ機構６側の位置にそれぞれ旋回移動させる。 Next, as shown in FIG. 6 a, the carriage 45 located at the position facing the rate 47 of the upper casting frame 2 on the right side located in the mold extraction mechanism 12 is manually placed on the rate 47 of the upper casting frame 2 on the right side. The right match plate 5 (B) is carried into the upper upper casting frame 2 and then the motor 34 of the casting frame turning mechanism 13 is driven as shown in FIG. The left match plate 5 (A) located on the sand squeeze mechanism 9 side is positioned at the mold extraction mechanism 12, and the right match plate 5 (B) located on the mold extraction mechanism 12 is positioned on the casting sand squeeze mechanism 6 side. To each turn.
次いで、図７のａに示すように、シリンダ３８の伸縮作動により左側の上鋳枠２を短い長さ上下動させながら、搬入出機構４のシリンダ１６の伸長作動により１対のアーム１７，１７を反時計回り方向へ回動させて、マッチプレート５（Ｂ）を搭載した台車４５に１対のアーム１７，１７を連結し、かつ、マッチプレート５（Ａ）を搭載した台車４５を右側の上鋳枠２のレール４７上から右外側へ移動させ、続いて、図７のｂに示すように、搬入出機構４のシリンダ１６の収縮作動により１対のアーム１７，１７を時計回り方向へ回動させてマッチプレート５（Ｂ）を搭載した台車４５を左側の上鋳枠２のレール４７上からレール４６上に移動させてマッチプレート５（Ｂ）を上鋳枠２から搬出し、かつ、右外側へ移動したマッチプレート５（Ａ）搭載の台車４５を適宜の搬送装置により適宜の場所へ移動させて、マッチプレート５の交換作業を完了する。 Next, as shown in FIG. 7 a, the pair of arms 17, 17 is formed by the extension operation of the cylinder 16 of the loading / unloading mechanism 4 while the left upper casting frame 2 is moved up and down by a short length by the expansion and contraction operation of the cylinder 38. Is rotated counterclockwise to connect the pair of arms 17 and 17 to the cart 45 equipped with the match plate 5 (B), and the cart 45 equipped with the match plate 5 (A) is connected to the right side. As shown in FIG. 7 b, the pair of arms 17, 17 are moved in the clockwise direction by the contraction operation of the cylinder 16 of the loading / unloading mechanism 4. The carriage 45 mounted with the match plate 5 (B) is moved from the rail 47 of the left upper casting frame 2 to the rail 46 to carry out the match plate 5 (B) from the upper casting frame 2, and Match plate 5 moved right outside A) is moved to the appropriate location by an appropriate conveying device carriage 45 mounted to complete the replacement of the match plate 5.
２ 上鋳枠
３ 下鋳枠
５ マッチプレート
６ 上スクイズプレート
７ 下スクイズプレート
２７ ホッパ
２７ａ ホッパ
１０１ マッチプレート
１０２ パターンプレート
１０３ パターンプレート
１０４ 空間
１０５ 通気口
2 Upper casting frame
3 Lower casting frame
5 Match plate 6 Upper squeeze plate 7 Lower squeeze plate 27 Hopper 27a Hopper 101 Match plate 102 Pattern plate 103 Pattern plate 104 Space 105 Vent
Claims (14)
前記マッチプレートの厚みが変わった場合においても、一対の筒状の枠体形状の鋳枠自体を前記マッチプレートの方向に移動させることにより、該鋳枠周壁に設けられた砂供給口の位置を移動させ、該移動させられる砂供給口の位置に合わせてホッパノズルを移動させて、厚さの異なる前記マッチプレートを使用することを特徴とする請求項1から請求項５のいずれかに記載のパターンプレートの再使用方法。 The frameless molding machine holds a match plate between two casting frames arranged with one end opening facing each other, and squeeze plates are fitted into the other end opening of the two casting frames. A pair of mold making spaces are defined, and casting sand is filled with air through sand supply ports provided in the two peripheral walls of the casting frame disposed in the pair of mold making spaces, and the squeeze plate It is a frameless mold making machine that compresses foundry sand to form two molds,
Even when the thickness of the match plate changes, the position of the sand supply port provided in the peripheral wall of the cast frame can be adjusted by moving the pair of cylindrical frame-shaped cast frames themselves in the direction of the match plate. The pattern according to any one of claims 1 to 5, wherein the match plate having a different thickness is used by moving the hopper nozzle according to the position of the moved sand supply port. How to reuse the plate.
造型に用いられていた従来のマッチプレートを外す工程と、新しいマッチプレートの厚みに合わせて、前記一対の筒状の枠体形状の鋳枠自体を移動させることにより、マッチプレート側の表面と該鋳枠周辺の砂供給口の位置を保ったまま移動させ、該移動させられる砂供給口の位置に合わせて複数のホッパを各々離反若しくは接近方向に移動させ、マッチプレートを使用することを特徴とする請求項1から請求項５のいずれかに記載のパターンプレートの再使用方法。 The frameless molding machine holds a match plate between two casting frames arranged with one end opening facing each other, and squeeze plates are fitted into the other end opening of the two casting frames. A pair of mold making spaces are defined, and casting sand is filled with air through sand supply ports provided in the two peripheral walls of the casting frame disposed in the pair of mold making spaces, and the squeeze plate An unframed mold making machine that compresses foundry sand to form two molds,
The step of removing the conventional match plate used for molding, and moving the pair of cylindrical frame-shaped casting frames themselves according to the thickness of the new match plate, It is characterized by using a match plate by moving while maintaining the position of the sand supply port around the casting frame, and moving each of the hoppers in the direction of separation or approach according to the position of the moved sand supply port. The method for reusing a pattern plate according to any one of claims 1 to 5.
前記マッチプレートの厚みに応じて少なくとも一方の鋳枠自体を移動させる駆動手段と、該鋳枠周壁に設けられた砂供給口の位置を移動させると共に該移動させられた砂供給口の位置に合わせて少なくとも一方のホッパ若しくはホッパノズルを移動させる駆動手段と、を具備したことを特徴とする無枠式鋳型造型機。 A match plate is sandwiched between two casting frames arranged opposite to each other at one end opening, and a squeeze plate is fitted to the other opening of the two casting frames to form a pair of mold making spaces. The molding sand is filled with air through the sand supply ports provided in the peripheral walls of the two casting frames arranged opposite to each other in the pair of mold forming spaces, and the molding sand is compressed by the squeeze plate. In a mold making machine that molds two molds,
The driving means for moving at least one casting frame itself according to the thickness of the match plate, and the position of the sand supply port provided on the peripheral wall of the casting frame are moved and adjusted to the position of the moved sand supply port. And a drive means for moving at least one hopper or hopper nozzle.
The frameless mold making machine according to any one of claims 10 to 13, wherein the squeeze plate is constituted by a plurality of squeeze feet, and the squeeze feet can be individually inserted and removed.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008213036A (en) * | 2006-08-04 | 2008-09-18 | Sintokogio Ltd | Flaskless molding machine |
| JP4600609B1 (en) * | 2010-01-15 | 2010-12-15 | 新東工業株式会社 | Frameless mold making machine |
| CN102085566A (en) * | 2010-01-15 | 2011-06-08 | 新东工业株式会社 | Flaskless mold forming machine |
| CN102476169A (en) * | 2010-11-26 | 2012-05-30 | 新东工业株式会社 | Method for green sand molding |
| CN107498004A (en) * | 2017-10-20 | 2017-12-22 | 南京晨光艺术工程有限公司 | A kind of adjustable sand box |
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2004
- 2004-03-17 JP JP2004076741A patent/JP4341021B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008213036A (en) * | 2006-08-04 | 2008-09-18 | Sintokogio Ltd | Flaskless molding machine |
| JP4600609B1 (en) * | 2010-01-15 | 2010-12-15 | 新東工業株式会社 | Frameless mold making machine |
| CN102085566A (en) * | 2010-01-15 | 2011-06-08 | 新东工业株式会社 | Flaskless mold forming machine |
| WO2011086712A1 (en) * | 2010-01-15 | 2011-07-21 | 新東工業株式会社 | Flaskless mold forming machine |
| KR101133904B1 (en) * | 2010-01-15 | 2012-04-09 | 신토고교 가부시키가이샤 | Flaskless mold forming machine |
| US8316918B2 (en) | 2010-01-15 | 2012-11-27 | Sintokogio, Ltd. | Flaskless molding machine |
| US8347946B2 (en) | 2010-01-15 | 2013-01-08 | Sintokogio, Ltd. | Flaskless molding machine |
| EA019474B1 (en) * | 2010-01-15 | 2014-03-31 | Синтокогио, Лтд. | Flaskless mold forming machine |
| CN102476169A (en) * | 2010-11-26 | 2012-05-30 | 新东工业株式会社 | Method for green sand molding |
| JP2012110948A (en) * | 2010-11-26 | 2012-06-14 | Sintokogio Ltd | Method for green sand molding |
| CN107498004A (en) * | 2017-10-20 | 2017-12-22 | 南京晨光艺术工程有限公司 | A kind of adjustable sand box |
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| JP4341021B2 (en) | 2009-10-07 |
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