WO2001054845A1 - Procede et dispositif permettant l'affaissement et la separation du materiau de moulage et du sable vert du moule en sable vert - Google Patents

Procede et dispositif permettant l'affaissement et la separation du materiau de moulage et du sable vert du moule en sable vert Download PDF

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Publication number
WO2001054845A1
WO2001054845A1 PCT/JP2001/000444 JP0100444W WO0154845A1 WO 2001054845 A1 WO2001054845 A1 WO 2001054845A1 JP 0100444 W JP0100444 W JP 0100444W WO 0154845 A1 WO0154845 A1 WO 0154845A1
Authority
WO
WIPO (PCT)
Prior art keywords
green sand
mold
sand mold
green
frame
Prior art date
Application number
PCT/JP2001/000444
Other languages
English (en)
Japanese (ja)
Inventor
Ryoji Kanayama
Hisashi Harada
Hiroaki Tokita
Kazuo Sugimoto
Takehiko Matsumoto
Hiroyasu Makino
Yasunori Yoshida
Shigeaki Yamamoto
Kuniyasu Mori
Original Assignee
Sintokogio, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2000019753A external-priority patent/JP2001205422A/ja
Priority claimed from JP2000019772A external-priority patent/JP2001205424A/ja
Priority claimed from JP2000087847A external-priority patent/JP2001269768A/ja
Priority claimed from JP2000104378A external-priority patent/JP2001287020A/ja
Priority claimed from JP2000114247A external-priority patent/JP2001300718A/ja
Application filed by Sintokogio, Ltd. filed Critical Sintokogio, Ltd.
Priority to BR0104248-3A priority Critical patent/BR0104248A/pt
Priority to KR1020017012446A priority patent/KR20010113871A/ko
Priority to EP01901530A priority patent/EP1205270A4/fr
Publication of WO2001054845A1 publication Critical patent/WO2001054845A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
    • B22C5/085—Cooling or drying the sand together with the castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/0405—Rotating moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots

Definitions

  • the present invention relates to a method and an apparatus for easily disintegrating a green sand mold to separate a raw material and green sand, and more particularly to a method and an apparatus for separating and collecting green sand according to a heat history from a green sand mold. About.
  • Another object of the present invention is to perform a systematic circulation treatment of green sand, thereby separately collecting green sand not affected by heat and green sand affected by heat attached to a botanical material, The goal is to minimize the amount of green sand that can be removed.
  • a green sand mold collapse method is to airtightly surround the green sand mold after completion of the filling, and to reduce the pressure of the airtightly surrounded green sand mold.
  • it consists of disintegrating the unheated part of the raw sand type II.
  • a method for disintegrating green sand mold according to another aspect of the present invention is to airtightly surround the green sand mold after the completion of the filling, and to decompress the green sand mold that is airtightly enclosed to reduce the green sand mold. This method separates the green sand mold from the raw material, releases the airtight enclosed green sand mold, and then removes the raw material.
  • a method for separating a raw material wherein the green sand mold which has been filled is hermetically surrounded, and the green sand mold which is hermetically surrounded to increase the boiling point of water is provided. Pressurizing the airtightly enclosed green sand mold to decompress the green sand mold to separate the green sand mold from the animal material; It consists of removing the gunshot material after releasing the ⁇ type.
  • the method of separating and removing the raw material material is as follows.
  • the green sand mold after the completion of the loading is carried one by one to the collapse position, and the green sand mold after the completion of the loading is airtightly sealed.
  • a vertically movable platform 5 having a vibration generator 5A which is provided at a collapsed position, is fixed and a tiltable tray 3 is mounted.
  • This is a disintegration / separation means for separating the green sand collapsed by weak vibrations, including the plate 2, which can be lifted and lowered to communicate with the vacuum source 6 via an on-off valve 7 provided above the mold mounting table 5.
  • a green sand recovery method hermetically surrounds green sand after completion of loading, which is carried in at a collapse position, and is heat-affected by green heat unaffected by heat.
  • Surrounded green sand to separate the raw material attached to the green sand In order to separate the green sand affected by heat from the raw material, the raw material is vibrated at a position different from the collapse position to separate the raw sand affected by the heat from the raw material. It consists of collecting the unaffected green sand separately.
  • a green sand recovery apparatus including a first collapse / separation station, a vertically movable ⁇ -type mounting table 5 having a vibration generator 5 A, and a tiltable tray 3.
  • Disintegration / separation means for separating green sand collapsed by weak vibrations including the plate 2 to be attached, and communicating with the vacuum source 6 via an on-off valve 7 provided above the ⁇ -type mounting table 5
  • a take-out fork 15 having a vibration generator 15A for separating green sand from the sand, and a second separation means including a second recovery strip 13 for recovering the green sand affected by heat.
  • FIG. 1 is a block diagram showing a conventional green sand recovery process.
  • FIG. 2 is a longitudinal sectional view showing a schematic configuration of the first embodiment of the present invention.
  • FIG. 3 is a partially sectional front view showing a second embodiment of the present invention.
  • FIG. 4 is an operation explanatory view of a main part of FIG.
  • FIG. 5 is an operation explanatory view of a main part of FIG.
  • FIG. 6 is a partially sectional front view showing a third embodiment of the present invention.
  • FIG. 7 and FIG. 7a are explanatory diagrams of the operation of the main part of FIG.
  • FIG. 7b is an operation explanatory view of a main part of FIG.
  • a layer in which a large amount of moisture collects at a higher temperature than other parts due to the heat of the biological material that is, a so-called moisture condensed layer with low strength
  • the airtightly enclosed green sand mold immediately after being injected is rapidly sucked and decompressed, so that the boiling point of the water is lowered, so that the water in the high-temperature state boils.
  • This is based on the fact that the raw material and the green sand mold are easily collapsed and separated.
  • Immediately after pouring refers to the point in time when the molten metal solidifies and the water in the water condensed layer is heated by the heat of the raw material to a high temperature state and boils.
  • the degree of decompression performed in an airtight state It refers to lowering the boiling point of the body's water to bring it to a boil, thereby reducing the water condensation layer to a negative pressure level that can easily collapse.
  • the boiling point of water rises to 10 o ° c or more, so that water of 10 o ° c or more is generated, resulting in strength. A weak moisture condensation layer is formed. After that, the boiling point of water is lowered by rapidly reducing the pressure of the air-filled green sand mold that has been poured and the hot water is boiled, and the green sand mold is easily broken down. It is desirable that the pressure of the freshly sealed sand mold is reduced to below atmospheric pressure rather than to atmospheric pressure.
  • the poured green sand mold refers to a mold without a frame, and refers to a mold in which a frame is separated from a mold with a frame immediately after molding or a mold without a frame immediately after molding.
  • a lifting cylinder 1 having a mounting plate 2 fixed to the top of the piston rod 1A is installed at the lower center, that is, at the first collapse separation station where the novel collapse separation of the present invention is performed.
  • a tray 3 to which a T-shaped ⁇ -shaped mounting table 5 is fixed at the center of the upper part is mounted so as to be tiltable around the connecting pin 4.
  • the pedestal 5 has multiple concave rows formed by a large number of I-beams 5A spaced in parallel in the front-rear direction, and generates various vibrations with vertical, horizontal, diagonal, and rotational movements.
  • a vibration generator 5B is provided with a first sand chute or hopper 12 and a first conveyor 12C for guiding the raw sand that has collapsed and separated and falls.
  • a decompression device including an inverted U-shaped closed box 8 communicating with a vacuum source 6 via an on-off valve 7 and a seal 9 provided around a bottom opening of the closed box 8 is installed.
  • a blanking machine 16 On one side of the collapse separation station, there is a blanking machine 16, a ⁇ -shaped extruded plate 10 and a ⁇ -shaped transfer plate 11, and a green sand ⁇ -type transfer for loading green sand ⁇ into the first collapse separation station.
  • a station is located.
  • the hot-sanded green sand type M with ⁇ frame F ⁇ on the frame plate 14 fixed to the top of the rod by the lifting cylinder 13 is pushed up through the frame removal machine 16 to be framed.
  • the unframed green sand mold M is extruded onto the mold placing table 5 via the mold extruding plate 11 by the mold extruding plate 10 attached to the reciprocating cylinder (not shown) rod. .
  • a second separation / collection station consisting of a vertically movable ⁇ -shaped take-out fork member 15 and a vibration generator 15A that generates vibrations with up, down, left, right, diagonal and rotational movements is installed.
  • a second chute or hopper 25 and a second conveyor 25 C are provided for separating and collecting the green sand affected by the heat of the molten metal attached around the mold material W.
  • the unframed green sand type M is pushed up to the type die plate 11 at the same level as the type placing table 5 and is passed through the die plate 11. It is carried into the gun-type mounting table 5 by the ⁇ -type extrusion plate 10.
  • the upper surface of the tray 3 comes into contact with the inverted U-shaped closed box 8 Until it is lifted up by the lifting cylinder, and housed in an airtight chamber defined by the tray upper surface and the closed box 8.
  • the on-off valve 7 is opened, the vacuum source 6 is communicated with the airtight chamber, and the pressure in the airtight chamber is rapidly reduced.
  • the on-off valve 7 is closed, the air supply valve (not shown) is opened and the airtight chamber is returned to the atmospheric pressure, and then the collapsed fresh sand type M and ⁇ The mold carrier 5 is lowered together with the mold material W to the position shown in FIG. Simultaneously with the lowering, the vibration generator 5B is activated, and the green sand whose weak vibration has collapsed through the ⁇ -mount 5 and the green sand that has not been affected by heat is added to the ⁇ -type material W and separated from the ⁇ -type material W. Is done.
  • Weak vibration refers to, for example, vibration that is distinguished by the magnitude of the acceleration and amplitude and is sufficient to separate the collapsed green sand from the area around the W-shaped material W.
  • the tray 3 is rotated and tilted counterclockwise about the connecting pin 4 so that the raw sand on the tray 3 and the mold mount 5 is sand chute. That is, it is collected in the conveyor 12 C via the hopper 12, so that the D-shaped materials W can be taken out one by one without being in contact with other members and sent to the next process. To be.
  • the take-out fork member 15 is inserted into the concave space of the ⁇ -type mounting table 5, and is slightly raised and retracted so as to scoop up the ⁇ -form material W.
  • Material W is moved to another second separation and collection position.
  • the vibration generator 15 A is actuated, and strong vibration is applied to the mold material W through the take-out fork member 15, and the green sand affected by the heat is separated from the periphery of the mold material W, and a chute, ie, Then, they are collected by the second conveyor 25C through the hopper 25 and sent to the next step in order.
  • Strong vibration refers to, for example, vibration that is distinguished by the magnitude of the acceleration and amplitude and is sufficient to separate the green sand H attached to the ⁇ -shaped material W after collapse.
  • the separated green sand and the green sand H attached to the green material W are separated from each other at different positions. May be done in 5 positions.
  • the green sand H attached to the mold material W is separated by strong vibration or the collapsed green sand and Any method can be adopted in which both the green mold sand H attached to the mold material W is simultaneously separated by strong vibration.
  • the process of separating the green sand from the mold material W by applying vibration on the mold mounting table 5 is performed after the airtight chamber is returned to the atmospheric pressure, but in a state where the airtight chamber is depressurized. May go.
  • the vibration generator 15A attached to the take-out fork member 15 is used only for the vibration generator 15A in the first and second stages. It may correspond to a separation step of green sand.
  • the poured unframed green sand mold M may be either the one that has been poured after removing from the frame for mold making or the one that has been extracted from the frame for mold making after pouring.
  • the ⁇ -shaped extruded plate 10 used to carry the green sand mold M to the collapse position can be replaced with the same one as the take-out fork member 15 used to take out the raw material W.
  • a scratching means 16 for scratching the surface of the green sand M-shaped M which triggers the collapse is additionally provided, and a ⁇ -shaped holding structure different from the ⁇ -shaped mounting table 5 of the first embodiment is used.
  • Can be Configuration and operation other than the above of the present invention See the first embodiment.
  • Damage means comprising a number of lateral projection members 24 for laterally scratching the green mold is provided above a frame removing device 16 for extracting the upper and lower green sand M from the upper and lower frames F.
  • a box-shaped tray 20 is mounted on the upper part of the mounting plate 2 instead of the T-shaped ⁇ -shaped mounting table 5 of the first embodiment so as to be tiltable around the connecting pin 4.
  • a plurality of band members 17 extending in the left-right direction are mounted so as to be able to move up and down by the cylinder 1, and a plurality of rod members 19 are erected.
  • the green sand ⁇ M is extracted from the upper and lower frames F through the frame removing device 16 by the cylinder 13 and passes through the inside of the frame 21 of the scratching means 1.
  • the surface is vertically scratched by the vertical projection member 22.
  • the green sand ⁇ M is extruded toward the box-shaped tray 20 by the ⁇ -shaped extruding plate 10 and passes through the inside of the frame 23 of the scratching means.
  • the surface of the surface is laterally scratched by the lateral projection member 24.
  • the raw sand type M that has been damaged vertically and horizontally by passing through the frames 21 and 23 of the scratching means is supported on a plurality of strips 17 and rods 19 in a box-shaped tray 20, After the strip 17 is lowered by the cylinder 1, the green sand M is placed on the tip of the rod 19. Thereafter, the raw sand type M is lifted by the lifting cylinder until the tray 20 comes into contact with the inverted U-shaped closed box 8 for collapse separation in the next step.
  • a pressing means for pressurizing the same is further used. Refer to the first embodiment for the configuration and operation other than the pressurizing means of the same embodiment.
  • the closed box 8 contains a pressurized hand consisting of an on-off valve 31, a conduit 32 and a compressed air source 33.
  • Step 30 is connected in communication with the enclosure.
  • the on-off valve 31 is opened.
  • the compressed air source 33 is communicated with the airtight chamber, the water condensing layer 34, which is weaker than the other parts, is pressurized to raise the boiling point of the water in the same layer, causing the condensed layer and raw sand.
  • the on-off valve 31 is closed to stop the supply of the compressed air into the airtight chamber, and the on-off valve 7 is opened to rapidly reduce the pressure in the airtight chamber. Is brought to below 100 ° C and boiled. As a result, the raw sand type M collapses and separates from the raw material as shown in Fig. 7b. Thereafter, the on-off valve 7 may be closed and the atmospheric pressure return valve (not shown) provided in the closed box 8 may be opened to return the airtight chamber to atmospheric pressure.
  • the airtight chamber defined by the tray and the closed box 8 is depressurized to the atmospheric pressure or less after being pressurized.
  • the atmospheric pressure return valve is opened to open the airtight chamber. The air pressure may be returned to the atmospheric pressure.
  • the green sand not affected by the heat of the molten metal and the heat affected by the molten metal By collecting the green sand separately and clearly grasping the production history, management of the raw material and sand treatment becomes easy, and various effects such as burnt of bentonite, maintenance of the quality of the green sand, and saving of additives. There is.

Abstract

La présente invention concerne un procédé et un dispositif permettant de recueillir le sable d'un moulage en sable vert coulé. Par ce procédé, on peut recueillir séparément l'un de l'autre, le sable vert de moulage non affecté thermiquement par le métal fondu et le sable de moulage thermiquement affecté par le métal fondu qui adhère au matériau de coulée, en provoquant l'affaissement de ce moulage en sable vert coulé, ce moulage en sable vert coulé étant placé dans un environnement hermétique à l'air dans une position d'affaissement, et par un phénomène de décompression il s'affaisse de façon à séparer le matériau de coulée sur lequel le sable vert de moulage thermiquement affecté adhère du sable vert de moulage non affecté thermiquement. On fait vibrer ce matériau de coulée dans une position différente de la position affaissée de façon à séparer le sable vert de moulage thermiquement affecté du matériau de coulée, le sable vert de moulage thermiquement affecté et le sable vert de moulage non thermiquement affecté pouvant être recueillis séparément l'un de l'autre.
PCT/JP2001/000444 2000-01-28 2001-01-24 Procede et dispositif permettant l'affaissement et la separation du materiau de moulage et du sable vert du moule en sable vert WO2001054845A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR0104248-3A BR0104248A (pt) 2000-01-28 2001-01-24 Método e mecanismo para colapsar moldes de areia glauconìtica e separar material de modelação e areia glauconìtica
KR1020017012446A KR20010113871A (ko) 2000-01-28 2001-01-24 생사 주형으로부터 주형 재료와 주형 생사를 붕괴하고분리시키는 방법 및 장치
EP01901530A EP1205270A4 (fr) 2000-01-28 2001-01-24 Procede et dispositif permettant l'affaissement et la separation du materiau de moulage et du sable vert du moule en sable vert

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP2000-19772 2000-01-28
JP2000019753A JP2001205422A (ja) 2000-01-28 2000-01-28 生砂主型の崩壊方法およびその装置
JP2000019772A JP2001205424A (ja) 2000-01-28 2000-01-28 生型と鋳物素材の分離方法およびその装置
JP2000-19753 2000-01-28
JP2000087847A JP2001269768A (ja) 2000-03-28 2000-03-28 生砂型と鋳物素材の分離方法およびその装置
JP2000-87847 2000-03-28
JP2000104378A JP2001287020A (ja) 2000-04-06 2000-04-06 注湯済生砂鋳型からの鋳物素材取出し方法及びその装置
JP2000-104378 2000-04-06
JP2000114247A JP2001300718A (ja) 2000-04-14 2000-04-14 注湯済み生砂鋳型の砂回収方法及びその装置
JP2000-114247 2000-04-14

Publications (1)

Publication Number Publication Date
WO2001054845A1 true WO2001054845A1 (fr) 2001-08-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/000444 WO2001054845A1 (fr) 2000-01-28 2001-01-24 Procede et dispositif permettant l'affaissement et la separation du materiau de moulage et du sable vert du moule en sable vert

Country Status (5)

Country Link
EP (1) EP1205270A4 (fr)
KR (1) KR20010113871A (fr)
CN (1) CN1362901A (fr)
BR (1) BR0104248A (fr)
WO (1) WO2001054845A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108580872A (zh) * 2018-05-09 2018-09-28 福州荣益行智能科技有限公司 一种自动化的手术各科的专用或精细手术器械设备
KR102147091B1 (ko) * 2019-01-11 2020-08-24 이정수 진동분리기 및 이를 이용한 주물 분리 시스템
CN110899673A (zh) * 2019-12-20 2020-03-24 六安七茗道机电科技有限公司 铸造砂模中铸模的振动分离机构

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JPS53125935A (en) * 1977-04-11 1978-11-02 Asahi Malleable Iron Co Ltd Removement of casting sand
US4620586A (en) * 1977-03-23 1986-11-04 General Kinematics Method and apparatus for reclaiming foundry sand
JPH06262339A (ja) * 1993-03-15 1994-09-20 Nissan Motor Co Ltd 中子砂の砂落し方法

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AU524386B2 (en) * 1977-11-09 1982-09-16 Commonwealth Industrial Gases Limited, The Cooling sand
JPS59215243A (ja) * 1983-05-23 1984-12-05 Nippon Kokan Keishiyu Kk 鋳物砂の再生方法
DE3323697C1 (de) * 1983-07-01 1985-02-28 Gerhard 5905 Freudenberg Müller-Späth Verfahren zum Herstellen eines Giessstueckes in einer Giessform
DE3400648A1 (de) * 1984-01-11 1985-07-18 Delta Engineering Beratung und Vermittlung Gesellschaft mbH, Irdning Vorrichtung und verfahren zur regeneration von giesserei-schuttsand
JP2575713B2 (ja) * 1987-06-19 1997-01-29 マツダ株式会社 鋳物砂の処理方法
CH681434A5 (fr) * 1990-01-31 1993-03-31 Fischer Ag Georg
CH681067A5 (fr) * 1990-09-05 1993-01-15 Fischer Ag Georg
US5103578A (en) * 1991-03-26 1992-04-14 Amoco Corporation Method and apparatus for removing volatile organic compounds from soils

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Publication number Priority date Publication date Assignee Title
US4620586A (en) * 1977-03-23 1986-11-04 General Kinematics Method and apparatus for reclaiming foundry sand
JPS53125935A (en) * 1977-04-11 1978-11-02 Asahi Malleable Iron Co Ltd Removement of casting sand
JPH06262339A (ja) * 1993-03-15 1994-09-20 Nissan Motor Co Ltd 中子砂の砂落し方法

Non-Patent Citations (1)

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Title
See also references of EP1205270A4 *

Also Published As

Publication number Publication date
KR20010113871A (ko) 2001-12-28
CN1362901A (zh) 2002-08-07
BR0104248A (pt) 2002-01-08
EP1205270A1 (fr) 2002-05-15
EP1205270A4 (fr) 2004-11-17

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