WO2011086711A1 - 鋳型造型機におけるサンドタンクの給排気装置及び給排気方法 - Google Patents
鋳型造型機におけるサンドタンクの給排気装置及び給排気方法 Download PDFInfo
- Publication number
- WO2011086711A1 WO2011086711A1 PCT/JP2010/055184 JP2010055184W WO2011086711A1 WO 2011086711 A1 WO2011086711 A1 WO 2011086711A1 JP 2010055184 W JP2010055184 W JP 2010055184W WO 2011086711 A1 WO2011086711 A1 WO 2011086711A1
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- WIPO (PCT)
- Prior art keywords
- sand
- sand tank
- valve
- air supply
- exhaust
- Prior art date
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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
Definitions
- the present invention relates to an air supply / exhaust device and an air supply / exhaust method for a sand tank in a mold making machine.
- the present invention has been made in view of the above problems, and can reduce the number of on-off valves to be used and can prevent the sand from adhering to the inside of the exhaust valve when exhausting. It is an object of the present invention to provide a sand tank air supply / exhaust device and an air supply / exhaust method in a machine.
- a sand tank supply / exhaust device in a mold making machine of the present invention is disposed inside the sand tank with a space between the sand tank in the mold making machine and the inner surface of the sand tank.
- a porous body provided, a hollow chamber formed by the outer surface of the porous body and the inner surface of the sand tank, and a peripheral edge of a sand filling nozzle of the sand tank, and compressed air in the inner space
- a seal member that expands by introduction of air, a pilot-type intake / exhaust valve for both air supply and exhaust that communicates with the hollow chamber, and an open / close that communicates with the pilot-type intake / exhaust valve and the internal space of the seal member And a valve.
- the sand tank air supply / exhaust device in the mold making machine of the present invention includes a speed control valve between the on-off valve and the pilot-type air supply / exhaust valve, and between the on-off valve and the internal space of the seal member. It is characterized by being interposed.
- the sand tank supply / exhaust method in the mold making machine of the present invention is a sand tank supply / exhaust method in the mold making machine using the sand tank supply / exhaust device in the mold making machine described above.
- the on-off valve is opened while casting sand is stored in the sand tank in the mold making machine, so that the seal member is expanded and brought into close contact with the peripheral edge of the sand inlet of the casting frame.
- the pilot-type air supply / exhaust valve is opened, and compressed air is supplied into the sand tank through the hollow chamber and the porous body to fill the casting frame with the foundry sand in the sand tank.
- the sand tank supply / exhaust method in the mold making machine of the present invention includes a speed control valve between the on-off valve and the pilot-type intake / exhaust valve and between the on-off valve and the internal space of the seal member.
- a speed control valve between the on-off valve and the pilot-type intake / exhaust valve and between the on-off valve and the internal space of the seal member.
- the present invention relates to a sand tank in a mold making machine, a porous body disposed inside the sand tank in a state spaced from an inner surface of the sand tank, an outer surface of the porous body, and the sand tank.
- a hollow chamber formed by an inner surface; a seal member that is attached to a peripheral edge of a sand filling nozzle of the sand tank and that expands when compressed air is introduced into the internal space; and communicated with the hollow chamber
- a pilot-type air supply / exhaust valve for both air supply and exhaust, and an on-off valve connected to the pilot-type air supply / exhaust valve and the internal space of the seal member are provided, so the number of on-off valves used is reduced.
- there are various effects such as being able to prevent sand from adhering to the inside of the exhaust valve when exhausting.
- FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention, and mainly shows a sand tank in a mold making machine. For this reason, illustration of components of the mold making machine other than the sand tank is omitted.
- a porous body 2 is disposed inside a sand tank 1 in a mold making machine in a state of being spaced from an inner surface of the sand tank 1, and the outer surface of the porous body 2 and the sand A hollow chamber 3 is formed with the inner surface of the tank 1.
- a slide gate (not shown) is disposed at the upper end of the sand tank 1.
- the porous body 2 is manufactured by sintering ultrahigh molecular weight polyethylene.
- a seal member 4 (in this embodiment, the material is nitrile rubber) that expands when compressed air is introduced into the internal space is attached to the peripheral edge of the sand filling nozzle 1a of the sand tank 1.
- the hollow chamber 3 is in communication with a pilot-type air supply / exhaust valve 5 for both air supply and exhaust.
- the pilot-type air supply / exhaust valve 5 and the internal space of the seal member 4 communicate with an on-off valve 6 (in this embodiment, an electromagnetic on-off valve).
- the on-off valve 6 and the pilot-type air supply / exhaust valve 5 are compressed.
- the air source 7 communicates with the air source 7.
- Speed control valves (speed controllers) 8a and 8b are interposed between the on-off valve 6 and the pilot-type supply / exhaust valve 5 and between the on-off valve 6 and the internal space of the seal member 4, respectively. Yes.
- FIG. 1 shows an upper squeeze member in which a match plate 11 is sandwiched between an upper casting frame 9 and a lower casting frame 10. 12 and the lower squeeze member 13 are inserted into the upper and lower casting frames 9 and 10, respectively, and predetermined molding spaces are formed in the upper and lower casting frames 9 and 10, respectively.
- FIG. 1 shows a state in which the sand introduction ports 9a and 10a of the upper and lower casting frames 9 and 10 and the sand filling nozzle 1a of the sand tank 1 are opposed to each other. This is a state immediately before the foundry sand S stored in the formed space is filled into the upper and lower casting frames 9 and 10.
- Examples of the foundry sand S in the present invention include green sand and ceramic artificial sand.
- the on-off valve 6 is opened in a state in which the slide gate (not shown) is closed and in a state where the foundry sand S is stored in the sand tank 1 (state in FIG. 1). Then, compressed air is introduced into the internal space of the seal member 4 through the pipe H1, and thereby the seal member 4 expands and comes into close contact with the peripheral edges of the sand inlets 9a and 10a of the upper and lower cast frames 9 and 10. .
- compressed air is introduced into the pilot-type air supply / exhaust valve 5 through the pipe H2, whereby the pilot-type air supply / exhaust valve 5 is opened.
- the compressed air is supplied into the sand tank 1 through the hollow chamber 3 and the porous body 2 which are air passages for spreading the compressed air over the porous body 2.
- the foundry sand S in the sand tank 1 is floated and fluidized, and the foundry sand S passes through the sand filling nozzle 1a of the sand tank 1 and the sand inlets 9a, 10a of the upper and lower casting frames 9, 10.
- the molding spaces in the upper and lower casting frames 9 and 10 are filled.
- the on-off valve 6 is closed.
- the seal member 4 contracts and separates from the peripheral edges of the sand inlets 9a and 10a of the upper and lower cast frames 9 and 10.
- the pilot type air supply / exhaust valve 5 is closed.
- the compressed air in the sand tank 1 is exhausted outside the sand tank 1 through the porous body 2 and the hollow chamber 3.
- the exhausted compressed air is discharged to the atmosphere from a silencer (silencer) 14 attached to the pilot type air supply / exhaust valve 5.
- the speed control valves 8a and 8b are adjusted in advance. More specifically, the flow rate of the compressed air flowing through the speed control valve 8b between the opening / closing valve 6 and the internal space of the seal member 4 is higher than the speed control valve 8a between the opening / closing valve 6 and the pilot-type supply / exhaust valve 5.
- the speed control valves 8a and 8b are adjusted so as to increase. By adjusting in this way, before opening the pilot-type air supply / exhaust valve 5, the seal member 4 is expanded and brought into close contact with the peripheral edges of the sand inlets 9a, 10a of the upper and lower cast frames 9, 10. can do.
- the porous body 2 is disposed inside the sand tank 1 with a space from the inner surface of the sand tank 1, and the outer surface of the porous body 2 and the sand tank 1 A hollow chamber 3 is formed with the inner surface.
- a pilot-type air supply / exhaust valve 5 communicates with the hollow chamber 3.
- the compressed air to be exhausted is clean air free from sand, there is no need to provide a separate air supply valve and exhaust valve as in the prior art, and one pilot type for both air supply and exhaust. Since the supply / exhaust valve 5 may be used, the number of on-off valves to be used can be reduced.
- both the pilot type air supply / exhaust valve 5 and the internal space of the seal member 4 are communicated with the on-off valve 6. If it demonstrates concretely by the above-mentioned embodiment, the piping H1 and the piping H2 are merged, and it connects to the on-off valve 6. FIG. For this reason, opening / closing of the pilot-type air supply / exhaust valve 5 and expansion / contraction of the seal member 4 can be performed by one on-off valve 6. Also by this, the number of on-off valves to be used can be reduced.
- speed control valves 8a and 8b are interposed between the on-off valve 6 and the pilot-type intake / exhaust valve 5, and between the on-off valve 6 and the internal space of the seal member 4, respectively.
- the present invention is not limited to this, and even if the speed control valves 8a and 8b are not used, the upper and lower casting frames 9 and 10 are expanded by expanding the seal member 4 before opening the pilot-type air supply / exhaust valve 5.
- the speed control valves 8a and 8b may be omitted when the sand inlets 9a and 10a can be brought into close contact with the peripheral edges of the tips.
- the speed control valves 8a and 8b are interposed between the open / close valve 6 and the pilot-type intake / exhaust valve 5 and between the open / close valve 6 and the internal space of the seal member 4, respectively. If the speed control valves 8a and 8b are adjusted, before the pilot-type air supply / exhaust valve 5 is opened, the seal member 4 is surely expanded so that the tips of the sand inlets 9a and 10a of the upper and lower cast frames 9 and 10 This is preferable because it can be brought into close contact with the periphery.
- one pilot type air supply / exhaust valve 5 is used.
- the present invention is not limited to this, and a plurality of pilot type air supply / exhaust valves 5 are required depending on the size of the sand tank 1.
- a plurality of pilot-type supply / exhaust valves 5 may be used. In such a case, if all of the plurality of pilot-type supply / exhaust valves 5 are all connected to the on-off valve 6, the plurality of pilot-type supply / exhaust valves 5 can be simply operated. Can be activated at once.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
Description
また、本発明は以下の詳細な説明により更に完全に理解できるであろう。しかしながら、詳細な説明および特定の実施例は、本発明の望ましい実施の形態であり、説明の目的のためにのみ記載されているものである。この詳細な説明から、種々の変更、改変が、当業者にとって明らかだからである。
出願人は、記載された実施の形態のいずれをも公衆に献上する意図はなく、開示された改変、代替案のうち、特許請求の範囲内に文言上含まれないかもしれないものも、均等論下での発明の一部とする。
本明細書あるいは請求の範囲の記載において、名詞及び同様な指示語の使用は、特に指示されない限り、または文脈によって明瞭に否定されない限り、単数および複数の両方を含むものと解釈すべきである。本明細書中で提供されたいずれの例示または例示的な用語(例えば、「等」)の使用も、単に本発明を説明し易くするという意図であるに過ぎず、特に請求の範囲に記載しない限り本発明の範囲に制限を加えるものではない。
Claims (4)
- 鋳型造型機におけるサンドタンクと、
該サンドタンクの内面と間隔をおいた状態で該サンドタンクの内部に配設された多孔質体と、
該多孔質体の外面と前記サンドタンクの内面とで形成される中空室と、
前記サンドタンクの砂充填用ノズルの先端周縁に装着されると共に内部空間に圧縮空気が導入されることにより膨張するシール部材と、
前記中空室に連通された給気・排気兼用のパイロット式給排気弁と、
該パイロット式給排気弁及び前記シール部材の内部空間に連通された開閉弁と、を具備することを特徴とする;
鋳型造型機におけるサンドタンクの給排気装置。 - 前記開閉弁と前記パイロット式給排気弁の間、及び、前記開閉弁と前記シール部材の内部空間の間に各々、速度制御弁を介在させたことを特徴とする;
請求項1記載の鋳型造型機におけるサンドタンクの給排気装置。 - 請求項1記載の鋳型造型機におけるサンドタンクの給排気装置を用いた鋳型造型機におけるサンドタンクの給排気方法であって、
前記鋳型造型機における前記サンドタンク内に鋳物砂を貯留した状態で前記開閉弁を開くことにより、前記シール部材を膨張させて鋳枠の砂導入口の先端周縁に密着させた状態で、前記パイロット式給排気弁を開いて圧縮空気を前記中空室及び前記多孔質体を介して前記サンドタンク内に給気して該サンドタンク内の鋳物砂を前記鋳枠内に充填する工程と、
前記開閉弁を閉じることにより、前記シール部材を収縮させて前記鋳枠の砂導入口の先端周縁から離反させ、且つ、前記パイロット式給排気弁を閉じて前記サンドタンク内の圧縮空気を前記多孔質体及び前記中空室を介して該サンドタンク外に排気する工程と、を有することを特徴とする;
鋳型造型機におけるサンドタンクの給排気方法。 - 前記開閉弁と前記パイロット式給排気弁の間、及び、前記開閉弁と前記シール部材の内部空間の間に各々、速度制御弁を介在させ、該各々の速度制御弁を調整することにより、前記パイロット式給排気弁を開く前に、前記シール部材を膨張させて鋳枠の砂導入口の先端周縁に密着させた状態にするようにしたことを特徴とする;
請求項3記載の鋳型造型機におけるサンドタンクの給排気方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2012008176A MX343712B (es) | 2010-01-13 | 2010-03-25 | Una maquina y un metodo para succionar y evacuar aire de un tanque de almacenamiento para arena en una maquina de moldeo. |
BR112012017261-1A BR112012017261B1 (pt) | 2010-01-13 | 2010-03-25 | Uma máquina e um método para sucção e exaustão de ar de um tanque de armazenamento para areia em uma máquina de moldagem |
EP10843069.5A EP2524745A4 (en) | 2010-01-13 | 2010-03-25 | Device and method for supplying and discharging air to and from sand tank for mold forming machine |
KR1020127016315A KR101632686B1 (ko) | 2010-01-13 | 2010-03-25 | 주형 조형기에 있어서의 샌드탱크의 급배기 장치 및 급배기 방법 |
US13/521,861 US8490675B2 (en) | 2010-01-13 | 2010-03-25 | Machine and a method for suctioning and exhausting air from a storage tank for sand in a molding machine |
EA201290635A EA019660B1 (ru) | 2010-01-13 | 2010-03-25 | Резервуар для хранения формовочной смеси в формовочной машине с устройством для всасывания и выпуска воздуха |
Applications Claiming Priority (2)
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JP2010-005048 | 2010-01-13 | ||
JP2010005048A JP5062540B2 (ja) | 2010-01-13 | 2010-01-13 | 鋳型造型機におけるサンドタンクの給排気装置及び給排気方法 |
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WO2011086711A1 true WO2011086711A1 (ja) | 2011-07-21 |
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PCT/JP2010/055184 WO2011086711A1 (ja) | 2010-01-13 | 2010-03-25 | 鋳型造型機におけるサンドタンクの給排気装置及び給排気方法 |
Country Status (9)
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US (1) | US8490675B2 (ja) |
EP (1) | EP2524745A4 (ja) |
JP (1) | JP5062540B2 (ja) |
KR (1) | KR101632686B1 (ja) |
CN (2) | CN201744616U (ja) |
BR (1) | BR112012017261B1 (ja) |
EA (1) | EA019660B1 (ja) |
MX (1) | MX343712B (ja) |
WO (1) | WO2011086711A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2433725A1 (en) * | 2010-03-11 | 2012-03-28 | Sintokogio, Ltd. | Casting mold molding machine |
CN103817294A (zh) * | 2014-03-07 | 2014-05-28 | 南京亚力电气有限公司 | 喷砂方便,取放模具省力的水平分型脱箱造型机 |
Families Citing this family (6)
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JP5062540B2 (ja) * | 2010-01-13 | 2012-10-31 | 新東工業株式会社 | 鋳型造型機におけるサンドタンクの給排気装置及び給排気方法 |
PL2805782T3 (pl) * | 2012-05-23 | 2018-08-31 | Sintokogio, Ltd. | Urządzenie do formowania rdzenia i sposób formowania rdzenia |
CN104334296B (zh) * | 2012-05-25 | 2016-08-31 | 新东工业株式会社 | 砂芯砂充填方法 |
CN104399904B (zh) * | 2014-12-18 | 2017-01-04 | 苏州明志科技有限公司 | 一种射芯机的可控射砂机构及射砂方法 |
CN110340311A (zh) * | 2019-08-20 | 2019-10-18 | 盐城市东云自动化科技有限公司 | 一种用于快速更换砂型铸造机密封圈的翻转机构 |
CN110987561A (zh) * | 2019-12-13 | 2020-04-10 | 中国海洋大学 | 一种砂土制样装置及方法 |
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2010
- 2010-01-13 JP JP2010005048A patent/JP5062540B2/ja active Active
- 2010-03-25 EP EP10843069.5A patent/EP2524745A4/en not_active Withdrawn
- 2010-03-25 BR BR112012017261-1A patent/BR112012017261B1/pt active IP Right Grant
- 2010-03-25 KR KR1020127016315A patent/KR101632686B1/ko active IP Right Grant
- 2010-03-25 MX MX2012008176A patent/MX343712B/es active IP Right Grant
- 2010-03-25 EA EA201290635A patent/EA019660B1/ru not_active IP Right Cessation
- 2010-03-25 WO PCT/JP2010/055184 patent/WO2011086711A1/ja active Application Filing
- 2010-03-25 US US13/521,861 patent/US8490675B2/en active Active
- 2010-04-30 CN CN2010201871064U patent/CN201744616U/zh not_active Expired - Lifetime
- 2010-04-30 CN CN201010169782A patent/CN101862816A/zh active Pending
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EP2433725A1 (en) * | 2010-03-11 | 2012-03-28 | Sintokogio, Ltd. | Casting mold molding machine |
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US8701744B2 (en) | 2010-03-11 | 2014-04-22 | Sintokogio, Ltd. | Molding machine |
CN103817294A (zh) * | 2014-03-07 | 2014-05-28 | 南京亚力电气有限公司 | 喷砂方便,取放模具省力的水平分型脱箱造型机 |
Also Published As
Publication number | Publication date |
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KR20120123038A (ko) | 2012-11-07 |
CN101862816A (zh) | 2010-10-20 |
EP2524745A4 (en) | 2017-08-16 |
BR112012017261B1 (pt) | 2018-01-23 |
US8490675B2 (en) | 2013-07-23 |
CN201744616U (zh) | 2011-02-16 |
MX2012008176A (es) | 2012-08-03 |
EA019660B1 (ru) | 2014-05-30 |
US20120325422A1 (en) | 2012-12-27 |
EP2524745A1 (en) | 2012-11-21 |
BR112012017261A2 (pt) | 2016-04-19 |
JP2011143426A (ja) | 2011-07-28 |
JP5062540B2 (ja) | 2012-10-31 |
MX343712B (es) | 2016-11-18 |
EA201290635A1 (ru) | 2012-12-28 |
KR101632686B1 (ko) | 2016-06-22 |
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