JP2009000690A - Sand-introducing-type sand molding machine - Google Patents
Sand-introducing-type sand molding machine Download PDFInfo
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- JP2009000690A JP2009000690A JP2007160932A JP2007160932A JP2009000690A JP 2009000690 A JP2009000690 A JP 2009000690A JP 2007160932 A JP2007160932 A JP 2007160932A JP 2007160932 A JP2007160932 A JP 2007160932A JP 2009000690 A JP2009000690 A JP 2009000690A
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- 239000004576 sand Substances 0.000 title claims abstract description 98
- 238000000465 moulding Methods 0.000 title abstract description 7
- 238000005266 casting Methods 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 6
- 238000007528 sand casting Methods 0.000 claims 1
- 239000003110 molding sand Substances 0.000 abstract description 2
- 238000012856 packing Methods 0.000 description 6
- 238000005192 partition Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/23—Compacting by gas pressure or vacuum
- B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C19/00—Components or accessories for moulding machines
- B22C19/04—Controlling devices specially designed for moulding machines
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
Description
本発明は、鋳物砂を型枠内あるいは鋳枠内に圧縮空気を用いて導入し充填するようにして鋳型を造型する鋳物砂導入式鋳型造型装置に関する。 The present invention relates to a casting sand introduction type mold making apparatus for forming a mold by introducing and filling casting sand into a mold or into a casting mold using compressed air.
従来、この種の装置の一つとして、ブローヘッドと、このブローヘッドにその吐出口が連通されかつ複数個設けられて前記ブローヘッドとの連通状態が並列的であり、圧縮空気の圧力、流量を調整する調整手段と、これら調整手段の給気口に連通された圧縮空気源と、前記ブローヘッド内の圧力を検出する圧力検出手段と、前記調整手段および前記圧力検出手段に電気的に接続されてこれらの調整手段および圧力検出手段の動作を制御するコントローラとを備えて、前記ブローヘッドに圧縮空気を供給してブローヘッド内の鋳物砂を型枠内または鋳枠内に吹き込み充填し、その後、充填した鋳物砂を圧縮して鋳型を造型するようにした吹込み式鋳型造型装置がある。
しかし、このように構成された従来の吹込み式鋳型造型装置では、圧縮空気の供給によるブローヘッド内の圧力変化が、図３に示すように、段階的にまたは緩慢にしか変化しないため、模型板の形状に合わせた最適な砂充填圧力にブローヘッド内の圧力を制御することができず、そのため、鋳物砂の型枠内等への充填が十分でなかったり、必要以上の圧縮空気を消費したりするといった問題があった。 However, in the conventional blow mold making apparatus configured in this way, the pressure change in the blow head due to the supply of compressed air changes only stepwise or slowly as shown in FIG. The pressure in the blow head cannot be controlled to the optimum sand filling pressure according to the shape of the plate, so the filling of the molding sand into the mold or the like is insufficient, or more compressed air is consumed than necessary. There was a problem such as.
本発明は、上記の事情に鑑みてなされたもので、その目的は、圧縮空気の供給によるサンドタンク内の圧力変化を模型板の形状に合わせた最適なものに調整可能な鋳物砂導入式鋳型造型装置を提供することにある。 The present invention has been made in view of the above circumstances, and its purpose is to provide a casting sand introduction mold that can adjust the pressure change in the sand tank due to the supply of compressed air to an optimum one that matches the shape of the model plate. It is to provide a molding apparatus.
上記の目的を達成するために発明の鋳物砂導入式鋳型造型装置は、鋳物砂を型枠内あるいは鋳枠内に圧縮空気を用いて導入し充填するようにして鋳型を造型する装置であって、鋳物砂を流動化する圧縮空気の噴射手段を備えかつ鋳物砂を圧縮空気によって加圧するサンドタンクと、このサンドタンクに連通接続された連通管と、この連通管にその排出口が接続されて並列的に配設されかつその供給口が圧縮空気源に接続され、サンドタンクに導入する圧縮空気の圧力、流量を調整する複数個の調整手段と、その供給ポートが前記圧縮空気源にかつその排出ポートが前記連通管にそれぞれ連通された電空比例弁と、前記サンドタンクに装着されてサンドタンク内の圧力を検出する圧力検出手段と、前記複数個の調整手段および前記圧力検出手段及び前記電空比例弁に電気的に接続されて前記複数個の調整手段および前記電空比例弁の動作を制御するコントローラと、を具備したことを特徴とする。
ここで、鋳物砂を流動化する圧縮空気の噴射手段とは、サンドタンクの内面に圧縮空気を噴出する手段であり、その方式は問わない。たとえば、圧力タンク構造を成すサンドタンク本体の胴壁が通気性の仕切り板によって仕切られて中空室を有する二重構造を成し、この仕切り板を多孔質材料で構成したものでよい。この仕切り板は、平均孔径が１０〜５００μｍであって砂粒子の粒径よりも小さい多数の貫通孔を有しかつ厚さが５〜２０ｍｍである樹脂板で構成することができる。
また、空気を通さない仕切り板に間隔を設けて微細な孔を穿孔した構成でもよい。
また、サンドタンクは、少なくとも鋳物砂の上面を前記噴出手段を通さない圧縮空気によって加圧する機能を有することもできる。
さらに、前記調整手段に接続される圧縮空気源と前記電空比例弁に接続される圧縮空気源は、圧力が同一でもよく、異なってもよい。加えて、これらの圧縮空気源を一つで兼用しても良い。
In order to achieve the above object, the foundry sand introduction type mold making apparatus of the invention is an apparatus for molding a mold by introducing and filling the foundry sand into the mold frame or into the mold frame using compressed air. A sand tank having compressed air injection means for fluidizing the foundry sand and pressurizing the foundry sand with the compressed air; a communication pipe connected to the sand tank; and a discharge pipe connected to the communication pipe. A plurality of adjusting means for adjusting the pressure and flow rate of the compressed air introduced into the sand tank, and its supply port connected to the compressed air source; An electro-pneumatic proportional valve having a discharge port communicating with the communication pipe, a pressure detection means for detecting the pressure in the sand tank attached to the sand tank, the plurality of adjustment means and the pressure detection means A controller for controlling the operation of said plurality of adjusting means and the electro-pneumatic proportional valve is electrically connected to the fine the electropneumatic proportional valve, characterized by comprising a.
Here, the compressed air jetting means for fluidizing the foundry sand is a means for jetting compressed air to the inner surface of the sand tank, and the system is not limited. For example, the body wall of the sand tank body forming the pressure tank structure may be partitioned by a breathable partition plate to form a double structure having a hollow chamber, and the partition plate may be made of a porous material. The partition plate can be formed of a resin plate having an average pore diameter of 10 to 500 μm, a large number of through holes smaller than the particle diameter of the sand particles, and a thickness of 5 to 20 mm.
Moreover, the structure which provided the space | interval in the partition plate which does not let air pass, and perforated | punched the fine hole may be sufficient.
The sand tank can also have a function of pressurizing at least the upper surface of the foundry sand with compressed air that does not pass through the ejection means.
Further, the compressed air source connected to the adjusting means and the compressed air source connected to the electropneumatic proportional valve may have the same or different pressure. In addition, these compressed air sources may be used together.
このように構成された装置は、予め調整手段の作動条件をコントローラに設定して、調整手段からの圧縮空気の供給により、サンドタンク内が模型板の形状に合わせた最適な砂充填圧力にするのに必要な圧力よりも低い圧力となるようにしたのち、圧力検出手段の管理の下に、複数の調整手段を段階的にまたは一度に開くとともに電空比例弁を作動させ、これにより、サンドタンク内の圧力変化を、任意の理想的な圧力曲線を描くものにすることができることになる。 In the apparatus configured in this way, the operating condition of the adjusting means is set in the controller in advance, and by supplying compressed air from the adjusting means, the sand tank has an optimum sand filling pressure that matches the shape of the model plate. Then, under the control of the pressure detecting means, a plurality of adjusting means are opened step by step or at a time and the electropneumatic proportional valve is operated, so that the sand pressure is reduced. The pressure change in the tank can be any ideal pressure curve.
ここで、任意の理想的な圧力曲線とは、理想的な充填密度を実現する圧力曲線である。理想的な充填密度は例えば充填キャビティの上・下部の充填密度が高く、模型のある中央部が低くなり、その後圧縮すると充填キャビティの上・下部および模型のある中央部とも同様な密度の高品質な鋳型となる充填密度である。 Here, an arbitrary ideal pressure curve is a pressure curve that realizes an ideal filling density. The ideal packing density is high, for example, the packing density at the top and bottom of the filling cavity is high, the center part with the model is low, and after compression, the top and bottom parts of the filling cavity and the center part with the model have the same density. It is the packing density which becomes a simple mold.
以上の説明からも明らかなように本発明は、圧力検出手段の管理の下に、複数の調整手段を段階的にまたは一度に開くとともに電空比例弁を作動させることにより、サンドタンク内の圧力変化を模型板の形状に合わせた最適なものに調整することが可能になるなどの優れた実用的効果を奏する。 As is clear from the above description, the present invention is configured so that the pressure in the sand tank is controlled by opening a plurality of adjusting means stepwise or at a time and operating the electropneumatic proportional valve under the control of the pressure detecting means. There are excellent practical effects such as being able to adjust the change to the optimum one according to the shape of the model board.
以下、本発明を適用した鋳物砂導入式鋳型造型装置の一実施例について、図1〜図３に基づき詳細に説明する。本鋳物砂導入式鋳型造型装置は、図１に示すように、鋳物砂を流動化する圧縮空気の噴射手段を備えかつ鋳物砂を圧縮空気によって加圧するサンドタンク１と、このサンドタンク１に連通接続された連通管２と、この連通管２にその排出口が接続されて並列的に配設されかつその供給口が補助管３を介して圧縮空気源４ａに接続され、圧縮空気の圧力、流量を調整する複数個の調整手段としての複数個のＶＰバルブ（流量・圧力制御弁）５、その供給ポートが圧縮空気源４ｂにかつその排出ポートが前記連通管２にそれぞれ連通されたＶＹバルブ（電空比例弁）６と、前記サンドタンク１に装着されてサンドタンク１内の圧力を検出する圧力検出手段７と、前記複数個のＶＰバルブ５および前記圧力検出手段７に電気的に接続されて前記複数個のＶＰバルブ５および圧力検出手段７の動作を制御するコントローラ８と、で構成してある。 Hereinafter, an embodiment of a casting sand introducing mold making apparatus to which the present invention is applied will be described in detail with reference to FIGS. As shown in FIG. 1, the foundry sand introduction type mold making apparatus includes a sand tank 1 having a compressed air injection means for fluidizing the foundry sand and pressurizing the foundry sand with the compressed air, and communicated with the sand tank 1. The connected communication pipe 2 is connected in parallel with the discharge port connected to the communication tube 2, and the supply port is connected to the compressed air source 4a via the auxiliary tube 3, and the pressure of the compressed air, A plurality of VP valves (flow rate / pressure control valves) 5 as a plurality of adjusting means for adjusting the flow rate, a VY valve having a supply port connected to the compressed air source 4b and a discharge port connected to the communication pipe 2. (Electropneumatic proportional valve) 6, pressure detection means 7 that is attached to the sand tank 1 and detects the pressure in the sand tank 1, and is electrically connected to the plurality of VP valves 5 and the pressure detection means 7 Being said multiple A controller 8 for controlling the operation of the VP valve 5 and the pressure detecting means 7, in are constituted.
なお、電空比例弁とはコントローラからの指令により任意の圧力の圧縮空気を供給することが可能な電磁弁である。 The electro-pneumatic proportional valve is an electromagnetic valve that can supply compressed air of any pressure according to a command from the controller.
このように構成した装置は、予め前記複数個のＶＰバルブ５の作動条件を前記コントローラ８に設定して、前記複数個のＶＰバルブ５からの圧縮空気の供給により、前記サンドタンク１内が模型板の形状に合わせた最適な砂充填圧力にするのに必要な圧力よりも前記サンドタンク１内が低い圧力となるようにしたのち、前記圧力検出手段７の管理の下に、前記複数のＶＰバルブ５を段階的に開くとともに前記ＶＹバルブ６を作動させる。これにより、前記サンドタンク１内の圧力変化を、図２に示すような任意の理想的な圧力曲線を描くものにすることができることになる。 In the apparatus configured as described above, the operating conditions of the plurality of VP valves 5 are set in the controller 8 in advance, and the inside of the sand tank 1 is modeled by supplying compressed air from the plurality of VP valves 5. After the pressure in the sand tank 1 is lower than the pressure necessary to obtain the optimum sand filling pressure according to the shape of the plate, the plurality of VPs are managed under the control of the pressure detecting means 7. The valve 5 is opened stepwise and the VY valve 6 is operated. As a result, the pressure change in the sand tank 1 can be drawn in an ideal pressure curve as shown in FIG.
このような任意の理想的な圧力曲線を描くことができる本発明の構成を使用して、理想的な充填密度を実現する方法を以下に説明する。本発明を適用した鋳型造型装置の模式図を図４に示す。サンドタンク内の理想的な圧力曲線を示すグラフを図５に示す。 The following describes how to achieve an ideal packing density using the configuration of the present invention that can draw any such ideal pressure curve. A schematic diagram of a mold making apparatus to which the present invention is applied is shown in FIG. A graph showing an ideal pressure curve in the sand tank is shown in FIG.
図４は図１と、ほぼ同様に構成されている。相違は、コントローラ８が、複数個のＶＰバルブ５、ＶＹバルブ６及び圧力検出手段７に電気的に接続されて複数個のＶＰバルブ５、ＶＹバルブ６の動作を制御するように構成されていることである。 FIG. 4 is configured in substantially the same manner as FIG. The difference is that the controller 8 is electrically connected to the plurality of VP valves 5, VY valves 6 and pressure detecting means 7 to control the operation of the plurality of VP valves 5, VY valves 6. That is.
そして、本鋳型造型装置によれば、予め前記ＶＰバルブ５の動作条件および前記ＶＹバルブ６の動作条件と理想的な圧力曲線を前記コントローラ８に設定して、前記ＶＰバルブ５からの圧縮空気の供給により、サンドタンク１内が模型板の形状に合わせた最適な砂充填圧力にするよりも低い圧力とすると共に前記圧力検出手段７の管理のもとに、前記最大個数のＶＰバルブ５の段階的な開閉と前記ＶＹバルブ６を作動させることができる。 According to this mold making apparatus, the operating conditions of the VP valve 5 and the operating conditions of the VY valve 6 and an ideal pressure curve are set in the controller 8 in advance, and the compressed air from the VP valve 5 is By supplying, the pressure in the sand tank 1 is lower than the optimum sand filling pressure that matches the shape of the model plate, and the maximum number of VP valves 5 is controlled under the control of the pressure detecting means 7. And the VY valve 6 can be actuated.
この結果、吹き込み充填時に充填キャビティの上・下部の砂Ｓの充填密度を高く、模型のある中央部を低くなる。 As a result, at the time of blow filling, the packing density of the sand S above and below the filling cavity is increased, and the central portion with the model is lowered.
そのような形状の鋳型を均一な密度にするためには、吹き込み充填過程のサンドタンク内圧力を変化させて、この充填を行なうための理想的なサンドタンク圧力曲線（図５）を得る必要がある。 In order to make the mold having such a shape uniform density, it is necessary to change the pressure in the sand tank during the blowing and filling process to obtain an ideal sand tank pressure curve (FIG. 5) for performing this filling. is there.
すなわち、前記ＶＰバルブ５から前記サンドタンク１に供給される圧縮空気の圧力曲線は図６に示す。また、前記ＶＹバルブ６から前記サンドタンク１に供給される圧縮空気の圧力曲線は図７に示す。そして、これらを合成すると、前記サンドタンク１内の圧力曲線は図８に示すように理想的なものになる。 That is, the pressure curve of the compressed air supplied from the VP valve 5 to the sand tank 1 is shown in FIG. Moreover, the pressure curve of the compressed air supplied from the VY valve 6 to the sand tank 1 is shown in FIG. When these are combined, the pressure curve in the sand tank 1 becomes ideal as shown in FIG.
合成されたサンドタンク内の圧力曲線(図８)は、理想的な圧力曲線（図５）に極めて類似するように調整される。 The pressure curve in the synthesized sand tank (FIG. 8) is adjusted to be very similar to the ideal pressure curve (FIG. 5).
この結果、充填キャビティの上・下部の砂Ｓの充填密度が高く、模型のある中央部が低くなり、その後圧縮すると充填キャビティの上・下部および模型のある中央部とも同様な密度の高品質な鋳型となる。 As a result, the packing density of the sand S above and below the filling cavity is high and the central part with the model is low, and after compression, the top and bottom parts of the filling cavity and the central part with the model have the same density and high quality. It becomes a mold.
なお、調整手段への圧力は、０．１〜０．３ＭＰａとし、電空比例弁への圧力は、０．５ＭＰａ程度とすることができる。ここで、電空比例弁は電気信号で任意の圧力に調整できるので工場エア圧をそのまま使用することもできる。 In addition, the pressure to an adjustment means can be 0.1-0.3 MPa, and the pressure to an electropneumatic proportional valve can be about 0.5 MPa. Here, since the electropneumatic proportional valve can be adjusted to an arbitrary pressure by an electric signal, the factory air pressure can be used as it is.
なお、上記の実施例では、サンドタンク１は、鋳物砂を流動化する圧縮空気の噴射手段を備えかつ噴射された圧縮空気によって鋳物砂を加圧する機能を有しているが、これに限定されるものではなく、少なくとも鋳物砂を圧縮空気によって加圧する機能を有しているなら、どのような構造のものでもよい。さらに、理想的な砂充填が得られれば、その後のスクイズボードＢ１、Ｂ２による圧縮により均一な鋳型ができるのは明白である。 In the above-described embodiment, the sand tank 1 includes a compressed air jetting means for fluidizing the foundry sand and has a function of pressurizing the foundry sand with the jetted compressed air, but is not limited thereto. Any structure may be used as long as it has a function of pressurizing at least the foundry sand with compressed air. Furthermore, if an ideal sand filling is obtained, it is clear that a uniform mold can be formed by subsequent compression by the squeeze boards B1 and B2.
また、本発明の鋳物砂は、ベントナイトを粘結剤とする生砂が最も好ましい。また本発明は有枠の造型機である鋳枠内のみならず抜枠造型機である型枠内への砂充填に用いることができる。 The foundry sand of the present invention is most preferably green sand using bentonite as a binder. In addition, the present invention can be used for filling sand into not only a casting frame that is a framed molding machine but also a mold that is a punching molding machine.
１ サンドタンク
２ 連通管
４ 圧縮空気源
５ ＶＰバルブ（流量・圧力制御弁）
６ ＶＹバルブ（電空比例弁）
７ 圧力検出手段
８ コントローラ
Ｓ 砂（鋳物砂）
1 Sand Tank 2 Communication Pipe 4 Compressed Air Source 5 VP Valve (Flow / Pressure Control Valve)
6 VY valve (electro-pneumatic proportional valve)
7 Pressure detection means 8 Controller S Sand (casting sand)
Claims (6)
鋳物砂を流動化する圧縮空気の噴射手段を備えかつ鋳物砂を圧縮空気によって加圧するサンドタンクと、
このサンドタンクに連通接続された連通管と、
この連通管にその排出口が接続されて並列的に配設されかつその供給口が圧縮空気源に接続され、圧縮空気の圧力、流量を調整する複数個の調整手段と、
その供給ポートが前記圧縮空気源にかつその排出ポートが前記連通管にそれぞれ連通された電空比例弁と、
前記サンドタンクに装着されてサンドタンク内の圧力を検出する圧力検出手段と、
前記複数個の調整手段および前記圧力検出手段に電気的に接続されて前記複数個の調整手段の動作を制御するコントローラと、
を具備したことを特徴とする鋳物砂導入式鋳型造型装置。 An apparatus for forming a mold so as to introduce and fill casting sand into a mold or into a mold using compressed air,
A sand tank having a jetting means of compressed air for fluidizing the foundry sand and pressurizing the foundry sand with the compressed air;
A communication pipe connected to this sand tank,
A plurality of adjusting means for adjusting the pressure and flow rate of the compressed air, the discharge port being connected in parallel to the communication pipe and the supply port being connected to the compressed air source;
An electropneumatic proportional valve having a supply port connected to the compressed air source and a discharge port connected to the communication pipe;
Pressure detecting means mounted on the sand tank for detecting the pressure in the sand tank;
A controller that is electrically connected to the plurality of adjustment means and the pressure detection means to control the operation of the plurality of adjustment means;
A casting sand introduction type mold making apparatus characterized by comprising:
鋳物砂を流動化する圧縮空気の噴射手段を備えかつ鋳物砂を圧縮空気によって加圧するサンドタンクと、
このサンドタンクに連通接続された連通管と、
この連通管にその排出口が接続されて並列的に配設されかつその供給口が圧縮空気源に接続され、圧縮空気の圧力、流量を調整する複数個の調整手段と、
その供給ポートが前記圧縮空気源にかつその排出ポートが前記連通管にそれぞれ連通された電空比例弁と、
前記サンドタンクに装着されてサンドタンク内の圧力を検出する圧力検出手段と、
前記複数個の調整手段、前記電空比例弁及び前記圧力検出手段に電気的に接続されて前記複数個の調整手段、前記電空比例弁の動作を制御するコントローラと、
を具備したことを特徴とする鋳物砂導入式鋳型造型装置。 An apparatus for forming a mold so as to introduce and fill casting sand into a mold or into a mold using compressed air,
A sand tank having a jetting means of compressed air for fluidizing the foundry sand and pressurizing the foundry sand with the compressed air;
A communication pipe connected to this sand tank,
A plurality of adjusting means for adjusting the pressure and flow rate of the compressed air, the discharge port being connected in parallel to the communication pipe and the supply port being connected to the compressed air source;
An electropneumatic proportional valve having a supply port connected to the compressed air source and a discharge port connected to the communication pipe;
Pressure detecting means mounted on the sand tank for detecting the pressure in the sand tank;
A controller that is electrically connected to the plurality of adjusting means, the electropneumatic proportional valve, and the pressure detecting means to control the operation of the plurality of adjusting means, the electropneumatic proportional valve;
A casting sand introduction type mold making apparatus characterized by comprising:
前記サンドタンクは、少なくとも鋳物砂の上面を前記噴出手段を通さない圧縮空気によって加圧する機能を有することを特徴とする鋳物砂導入式鋳型造型装置。 In the casting sand introduction type mold making apparatus according to claim 1 or 2,
The sand sand casting mold making apparatus, wherein the sand tank has a function of pressurizing at least the upper surface of the foundry sand with compressed air that does not pass through the jetting means.
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| JP2007160932A JP4697609B2 (en) | 2007-01-16 | 2007-06-19 | Foundry sand casting type mold making equipment |
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| JP2007160932A JP4697609B2 (en) | 2007-01-16 | 2007-06-19 | Foundry sand casting type mold making equipment |
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| US (1) | US20080169079A1 (en) |
| EP (1) | EP1857201B1 (en) |
| JP (1) | JP4697609B2 (en) |
| KR (1) | KR101106868B1 (en) |
| BR (1) | BRPI0720949B8 (en) |
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| CN114700468A (en) * | 2022-04-01 | 2022-07-05 | 朱兴丰 | Automatic manufacturing equipment for composite sand mold for cast iron |
| CN115007798A (en) * | 2022-06-15 | 2022-09-06 | 安徽汉扬精密机械有限公司 | Full-automatic horizontal sand casting machine and working method thereof |
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| JPH0253859U (en) * | 1988-10-07 | 1990-04-18 | ||
| JPH06277800A (en) * | 1993-03-26 | 1994-10-04 | Sintokogio Ltd | Blowing type molding method and its device |
| JP2002018552A (en) * | 2000-07-04 | 2002-01-22 | Sintokogio Ltd | Device for blowing foundry sand |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3965961A (en) * | 1971-09-23 | 1976-06-29 | Dansk Industri Syndikat A/S | Method of operating automatic mold part producing apparatus |
| WO1991014525A1 (en) * | 1990-03-20 | 1991-10-03 | Dansk Industri Syndikat A/S | A method for producing a series of casting molds or mold parts, and an apparatus for carrying out the method |
| JP2925504B2 (en) * | 1996-10-01 | 1999-07-28 | メタルエンジニアリング株式会社 | Distance detection device for mold making |
| JP3332214B2 (en) * | 1998-03-27 | 2002-10-07 | 新東工業株式会社 | Blow molding machine |
| DE19823134C1 (en) * | 1998-05-23 | 1999-12-02 | Joachim Laempe | Method and device for the production of moldings for foundry purposes from sand |
| JP3900447B2 (en) * | 1998-10-28 | 2007-04-04 | 新東工業株式会社 | Foundry sand compression equipment |
| WO2001019546A1 (en) * | 1999-09-16 | 2001-03-22 | Sintokogio, Ltd. | Blow molding method for superplastic materials and system |
| EP1149646B1 (en) | 1999-11-04 | 2011-05-18 | Sintokogio, Ltd. | Molding device and molding method for sand mold |
| CN1214881C (en) * | 2000-02-17 | 2005-08-17 | 新东工业株式会社 | Method and device for filling casting sand |
| US6957687B2 (en) | 2001-08-06 | 2005-10-25 | Sintokogio, Ltd. | Method and system for monitoring a molding machine |
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- 2007-06-19 JP JP2007160932A patent/JP4697609B2/en active Active
- 2007-06-28 EP EP07012739.4A patent/EP1857201B1/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0253859U (en) * | 1988-10-07 | 1990-04-18 | ||
| JPH06277800A (en) * | 1993-03-26 | 1994-10-04 | Sintokogio Ltd | Blowing type molding method and its device |
| JP2002018552A (en) * | 2000-07-04 | 2002-01-22 | Sintokogio Ltd | Device for blowing foundry sand |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1857201B1 (en) | 2017-11-29 |
| BRPI0720949B8 (en) | 2016-10-11 |
| EP1857201A1 (en) | 2007-11-21 |
| MX2009007563A (en) | 2009-08-13 |
| KR20090101488A (en) | 2009-09-28 |
| WO2008087758A1 (en) | 2008-07-24 |
| US20080169079A1 (en) | 2008-07-17 |
| BRPI0720949B1 (en) | 2016-03-29 |
| BRPI0720949A2 (en) | 2014-03-18 |
| KR101106868B1 (en) | 2012-01-19 |
| JP4697609B2 (en) | 2011-06-08 |
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