JPS6338261B2 - - Google Patents
Info
- Publication number
- JPS6338261B2 JPS6338261B2 JP58129590A JP12959083A JPS6338261B2 JP S6338261 B2 JPS6338261 B2 JP S6338261B2 JP 58129590 A JP58129590 A JP 58129590A JP 12959083 A JP12959083 A JP 12959083A JP S6338261 B2 JPS6338261 B2 JP S6338261B2
- Authority
- JP
- Japan
- Prior art keywords
- housing
- formwork unit
- unit
- auxiliary chamber
- molding material
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000009415 formwork Methods 0.000 claims description 26
- 239000012778 molding material Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 9
- 239000004566 building material Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000000748 compression moulding Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims 4
- 238000000465 moulding Methods 0.000 claims 2
- 239000004576 sand Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Description
【発明の詳細な説明】
本発明は気体状媒体の衝撃圧により粒状造型材
料、特に鋳型材料を圧縮する方法、および気体状
媒体貯蔵容器を型枠ユニツトの上方に配置し、板
によつて型枠ユニツトから分離した上記方法を実
施するための装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for compressing granular molding material, in particular molding material, by impact pressure of a gaseous medium, and in which a gaseous medium storage container is placed above the formwork unit and the molding material is compressed by means of a plate. The present invention relates to an apparatus for carrying out the above method which is separate from the frame unit.
ドイツ公告特許第196123号明細書には、内部空
所を有するハウジングを有し、該内部空所は一方
の穴を介して圧縮空気源とまたはハウジング底部
に設けた他方の穴を介して型枠と連通し、ハウジ
ング底部の穴を弁によつて閉鎖することによつて
圧縮空気貯蔵容器を形成し、かつハウジング底部
の外側には下板を設け、この下板はハウジング底
部と共に補助室を形成し、かかる下板には圧縮造
型材料の全表面に空気を均一に分配するために穴
を設け、および型枠の底部として形成される型板
には大気と連通する穴を設けた鋳型材料の圧縮装
置が記載されている。この装置の欠点は型砂を加
速するために高い圧力を加える必要があることで
ある。しかも、通常の空気抜き穴が設けられてい
ない。 DE 196 123 has a housing with an internal cavity which can be connected to a source of compressed air through one hole or to a formwork through the other hole in the bottom of the housing. and a hole in the bottom of the housing is closed by a valve to form a compressed air storage container, and on the outside of the bottom of the housing there is a lower plate, which together with the bottom of the housing forms an auxiliary chamber. The lower plate is provided with holes for uniform distribution of air over the entire surface of the compression molding material, and the template formed as the bottom of the molding material is provided with holes communicating with the atmosphere. A compression device is described. A disadvantage of this device is the need to apply high pressure to accelerate the mold sand. Moreover, it does not have the usual air vent holes.
本発明の目的は経済的な気体圧縮条件を用い、
構造および操作が簡単で、かつ高い均一な造型材
料密度を与えることのできる粒状造型材料を圧縮
する方法および装置を提供することである。 The purpose of the present invention is to use economical gas compression conditions,
It is an object of the present invention to provide a method and apparatus for compressing a granular building material, which is simple in structure and operation, and can provide a high and uniform density of the building material.
次に、本発明を添付図面について説明する。 The invention will now be described with reference to the accompanying drawings.
第１図に示すように、型枠ユニツト１は型板
２、その上に配置する型枠４およびこれにより取
囲まれた型３とから構成されている。型枠４の上
に充填容器５を配置する。型枠ユニツト１の上方
にハウジング６を配置し、このハウジングは圧縮
空気貯蔵容器として作用する。圧縮空気の供給は
導管７を介して行う。ハウジング６の内部には補
助室８と圧縮空気供給管９を設ける。補助室８は
導管１０および消音器１９を介して大気と連通す
る。補助室８は底面８ａ、側面８ｂおよび頂面８
ｃから形成している。側面と底面は互いに接して
かど部を形成しないように突き合わせる。開放さ
れたかど部１６はその外部に形成した全外側面を
伸縮性材料（例えば、エラストマー）でホース状
に膨張させて形成したホース状膨張部または隔膜
１１を有し、この膨張部１１はその端部を図に示
しているようにネジで補助室８の側面および底面
に固定する。 As shown in FIG. 1, the form unit 1 is composed of a form plate 2, a form frame 4 disposed thereon, and a mold 3 surrounded by the form plate 2. As shown in FIG. A filling container 5 is placed on the formwork 4. A housing 6 is arranged above the formwork unit 1, which serves as a compressed air storage container. The supply of compressed air takes place via conduit 7. An auxiliary chamber 8 and a compressed air supply pipe 9 are provided inside the housing 6. The auxiliary chamber 8 communicates with the atmosphere via a conduit 10 and a muffler 19. The auxiliary chamber 8 has a bottom surface 8a, a side surface 8b and a top surface 8.
It is formed from c. The side and bottom surfaces should butt against each other so as not to form corners. The open corner portion 16 has a hose-like expansion portion or diaphragm 11 formed by expanding the entire outer surface thereof with a stretchable material (e.g., an elastomer) into a hose shape. The ends are fixed to the side and bottom of the auxiliary chamber 8 with screws as shown in the figure.
補助室８内が５〜６バールの必要な使用圧に達
した時、ホース状膨張部、または隔膜１１は板１
２と連結したくさび状体１２ａの上に接する。こ
の板１２はプレス板として格子状に形成し、型枠
ユニツト１とハウジング６とを分離する。 When the required working pressure of 5 to 6 bar is reached in the auxiliary chamber 8, the hose-like expansion part or diaphragm 11 opens the plate 1.
2 and is in contact with the top of the wedge-shaped body 12a connected to the wedge-shaped body 12a. This plate 12 is formed as a press plate in the form of a lattice, and separates the formwork unit 1 and the housing 6.
本発明の装置の作動を次に説明する。 The operation of the device of the invention will now be described.
所定量の造型材料１３を移動式充填装置によつ
て型枠ユニツト１に導入した後、その上にハウジ
ング６を載置する。 After a predetermined amount of molding material 13 is introduced into the formwork unit 1 by a mobile filling device, the housing 6 is placed thereon.
まず、約５〜６バールの圧力に達するまで、導
管９を介して補助室８に圧縮空気を供給する。こ
の圧力に達すると、隔膜１１が膨張してその壁が
板１２上に接し、型枠ユニツト１とハウジング６
との間に密閉シールを形成する。導管１０の弁１
４を閉じる。ここで、圧縮空気を導管７を介して
ハウジング６の内部空所に導入する。この空所内
を約４〜５バールの使用圧力に調整する。使用圧
力は１〜10バールの範囲において変えることがで
きる。 First, compressed air is supplied to the auxiliary chamber 8 via the conduit 9 until a pressure of approximately 5-6 bar is reached. When this pressure is reached, the diaphragm 11 expands and its wall contacts the plate 12, causing the formwork unit 1 and the housing 6
forms a hermetic seal between the Valve 1 of conduit 10
Close 4. Compressed air is now introduced into the internal cavity of the housing 6 via the conduit 7. A working pressure of approximately 4-5 bar is established in this cavity. The working pressure can vary in the range from 1 to 10 bar.
次いで、弁１４を開放し、補助室８の圧力がハ
ウジング６の内部空所の圧力より低下すると、た
だちにホース状膨張部１１の圧力が急激に低下し
て膨張部１１がちぢみ、板１２の開口がハウジン
グ６の内部と連通する。第２図に示す圧力P1の
圧縮空気が板１２の開口を通過して造型材料１３
を圧縮する。圧縮後、圧力P2になる。再び、圧
縮空気を供給管９を介して補助室８に供給し、こ
れにより再び膨張部１１の壁は板１２上に接し、
型枠ユニツト１とハウジング６との間に密閉シー
ルを形成する。次いで、液圧昇降ピストン１５に
よつてプレステーブル１７は押上げられ、板１２
が圧縮造型材料表面上に接し、この時、押圧縁１
８が型表面に圧入することによつて型の上側が再
圧縮される。このような砂の経済的管理のため
に、型枠上に生ずる砂の高さを一定に調整するこ
とができる。 Next, when the valve 14 is opened and the pressure in the auxiliary chamber 8 drops below the pressure in the internal space of the housing 6, the pressure in the hose-like expansion part 11 immediately decreases rapidly, the expansion part 11 shrinks, and the opening in the plate 12 closes. communicates with the inside of the housing 6. Compressed air with a pressure of P 1 as shown in FIG.
Compress. After compression, the pressure will be P 2 . Compressed air is again supplied to the auxiliary chamber 8 via the supply pipe 9, so that the wall of the expansion part 11 is again in contact with the plate 12,
A hermetic seal is formed between the formwork unit 1 and the housing 6. Next, the press table 17 is pushed up by the hydraulic lifting piston 15, and the plate 12
is in contact with the surface of the compression molding material, and at this time, the pressing edge 1
8 is press-fitted into the mold surface, thereby re-compressing the upper side of the mold. For such economical management of sand, the height of the sand produced on the formwork can be set constant.
型枠ユニツト１を上方に移動させることによつ
て造型材料表面上の空気が圧縮され、圧力が第２
図に示すP3に上昇する。この圧力レベルを維持
している間、存在する媒体、すなわち、圧縮空気
によつて型背面のまだゆるい層を再圧縮すること
ができる。 By moving the formwork unit 1 upward, the air on the surface of the molding material is compressed, and the pressure increases to a second level.
Rise to P 3 as shown in the figure. While maintaining this pressure level, the still loose layer at the back of the mold can be recompacted by the medium present, namely compressed air.
第１図は本発明の方法を実施する装置の断面
図、および第２図は本発明の方法の圧力の経過過
程を示す曲線図である。
１……型枠ユニツト、２……型板、３……型、
４……型枠、５……充填容器、６……ハウジン
グ、７，１０……導管、８……補助室、８ａ……
底面、８ｂ……側面、８ｃ……頂面、９……圧縮
空気供給管、１１……ホース状膨張部（または隔
膜）、１２……板、１２ａ……くさび状体、１３
……造形材料、１４……弁、１５……液圧昇降ピ
ストン、１６……かど区域、１７……プレステー
ブル、１８……押圧縁。
FIG. 1 is a sectional view of an apparatus for carrying out the method of the invention, and FIG. 2 is a curve diagram showing the pressure course of the method of the invention. 1... Formwork unit, 2... Template, 3... Mold,
4... Formwork, 5... Filling container, 6... Housing, 7, 10... Conduit, 8... Auxiliary room, 8a...
Bottom surface, 8b...Side surface, 8c...Top surface, 9...Compressed air supply pipe, 11...Hose-like expansion part (or diaphragm), 12...Plate, 12a...Wedge-shaped body, 13
... Modeling material, 14 ... Valve, 15 ... Hydraulic lifting piston, 16 ... Corner area, 17 ... Press table, 18 ... Pressing edge.
Claims (1)
たハウジングから造型材料に作用する気体状媒体
の衝撃圧によつて圧縮する方法において、所定量
の造型材料を型枠ユニツトに導入し、その上にハ
ウジングを配置し、ハウジング内の補助室に圧縮
空気を供給し、補助室の内部が加圧される場合に
ハウジングと型枠ユニツトとをシールする手段に
よつて型枠ユニツトとハウジングとの間に密閉シ
ールを形成し、圧縮空気をハウジングの内部空所
に導入し、次いで補助室の圧力をハウジングの内
部空所の圧力より低下することにより前記ハウジ
ングの内部容積と前記型枠ユニツトの内部容積と
を分離する板の開口を通じてハウジングの内部を
型枠ユニツトの内部と連通させ、圧縮空気が型枠
ユツト内の造型材料を圧縮し、ガス圧縮後再び圧
縮空気を補助室に供給し前記シール手段により型
枠ユニツトとハウジングとの間に密閉シールを形
成し、次いで液圧昇降ピストンによつて圧縮造型
材料の表面を前記板に接触させ、前記板に設けら
れた押圧縁が型表面に圧入して型の上側を再圧縮
することを特徴とする粒状造型材料の圧縮方法。 ２ 圧縮造型材料の表面上の圧力を、型枠ユニツ
ト内に存在する空気を圧縮することによつて上昇
させる特許請求の範囲第１項記載の方法。 ３ 再圧縮を機械的手段によつて強める特許請求
の範囲第１または２項記載の方法。 ４ 型枠ユニツトの上方にハウジングを配置し、
該ハウジングを板によつて型枠ユニツトから分離
した粒状造型材料の圧縮装置において、型枠ユニ
ツト１；該型枠ユニツトの上に配置したハウジン
グ６；該ハウジング６の内部容積と前記型枠ユニ
ツト１の内部容積とを分離する開口を有する板１
２；前記ハウジング６の内部に設けた圧縮空気供
給管９に連結した補助室８；前記補助室８の内部
が加圧された場合に前記ハウジング６を前記型枠
ユニツト１とシールする手段、このシール手段は
ハウジングの内部が大気に連通した時に釈放し、
圧縮空気がハウジングから型枠ユニツトにすみや
かに移動して型枠ユニツト内の造型材料を圧縮
し；および前記ガス圧縮後、前記型枠ユニツトの
容積を減少させて造型材料を更に圧縮する手段か
らなることを特徴とする粒状造型材料の圧縮装
置。 ５ 前記板には気体状媒体を型枠ユニツト内に均
一に分配するための開口を設けた特許請求の範囲
第４項記載の装置。 ６ 前記補助室の壁は少なくとも部分的に隔膜ま
たはシールから構成した特許請求の範囲第４項記
載の装置。 ７ 前記ハウジングおよび前記補助室内の圧力レ
ベルを互いに独立して調整するように構成した特
許請求の範囲第４項記載の装置。 ８ 前記圧力レベルを１〜10バールに調整した特
許請求の範囲第７項記載の装置。 ９ 前記補助室内の圧力レベルを前記ハウジング
内より大きくした特許請求の範囲第４または８項
記載の装置。 １０ 前記板を再圧縮のために使用し、前記板に
は押圧縁を設けた特許請求の範囲第４〜８項のい
ずれか一つの項記載の装置。 １１ 前記ハウジングを機械的により、空気作用
により、または液圧により移動するようにした特
許請求の範囲第４〜９項のいずれか一つの項に記
載の装置。[Claims] 1. A method in which granular molding material is compressed by the impact pressure of a gaseous medium acting on the molding material from a housing disposed above the molding unit, in which a predetermined amount of the molding material is applied to the molding unit. the formwork unit by means of introducing the housing, placing the housing thereon, supplying compressed air to an auxiliary chamber in the housing, and sealing the housing and the formwork unit when the interior of the auxiliary chamber is pressurized. and a housing by introducing compressed air into the internal cavity of the housing and then lowering the pressure in the auxiliary chamber below the pressure in the internal cavity of the housing to reduce the internal volume of said housing and said mold. The inside of the housing is communicated with the inside of the formwork unit through the opening in the plate that separates the internal volume of the frame unit, the compressed air compresses the molding material inside the formwork unit, and after the gas is compressed, the compressed air is sent to the auxiliary chamber again. and the sealing means forms a hermetic seal between the form unit and the housing, and then the surface of the compression molding material is brought into contact with the plate by means of a hydraulic lifting piston, so that the pressing edge provided on the plate A method for compressing a granular molding material, which is characterized by press-fitting into the surface of a mold and recompressing the upper side of the mold. 2. The method according to claim 1, wherein the pressure on the surface of the compression molding material is increased by compressing air present in the mold unit. 3. The method according to claim 1 or 2, wherein the recompression is enhanced by mechanical means. 4 Place the housing above the formwork unit,
In an apparatus for compressing granular molding material, the housing is separated from the formwork unit by a plate, the formwork unit 1; the housing 6 disposed above the formwork unit; the internal volume of the housing 6 and the formwork unit 1. Plate 1 having an opening separating the internal volume of
2; an auxiliary chamber 8 connected to a compressed air supply pipe 9 provided inside the housing 6; means for sealing the housing 6 with the formwork unit 1 when the inside of the auxiliary chamber 8 is pressurized; the sealing means releases when the interior of the housing communicates with the atmosphere;
compressed air is quickly transferred from the housing to the formwork unit to compress the building material in the formwork unit; and after compressing the gas, means for reducing the volume of the formwork unit to further compress the building material. A compression device for granular molding material, characterized by: 5. Apparatus according to claim 4, in which the plate is provided with openings for uniformly distributing the gaseous medium within the formwork unit. 6. The device of claim 4, wherein the wall of the auxiliary chamber is at least partially comprised of a diaphragm or a seal. 7. The apparatus of claim 4, wherein the pressure level within the housing and the auxiliary chamber are adjusted independently of each other. 8. Device according to claim 7, characterized in that the pressure level is adjusted between 1 and 10 bar. 9. The device according to claim 4 or 8, wherein the pressure level inside the auxiliary chamber is greater than that inside the housing. 10. Apparatus according to any one of claims 4 to 8, in which the plate is used for recompression, and the plate is provided with a pressing edge. 11. Device according to any one of claims 4 to 9, characterized in that the housing is moved mechanically, pneumatically or hydraulically.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH4432/82-2 | 1982-07-20 | ||
| CH4432/82A CH659012A5 (en) | 1982-07-20 | 1982-07-20 | METHOD AND DEVICE FOR COMPRESSING GRAINY MOLDS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5927752A JPS5927752A (en) | 1984-02-14 |
| JPS6338261B2 true JPS6338261B2 (en) | 1988-07-29 |
Family
ID=4276020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58129590A Granted JPS5927752A (en) | 1982-07-20 | 1983-07-18 | Method and device for compressing granular molding material |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5927752A (en) |
| CH (1) | CH659012A5 (en) |
| DE (1) | DE3321439C2 (en) |
| IT (1) | IT1194303B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH648225A5 (en) * | 1982-10-01 | 1985-03-15 | Fischer Ag Georg | METHOD AND DEVICE FOR COMPRESSING GRAINY MOLDING MATERIALS, IN PARTICULAR FOUNDRY MOLDING MATERIALS. |
| CH672270A5 (en) * | 1986-12-17 | 1989-11-15 | Fischer Ag Georg | |
| DE3829188C2 (en) * | 1988-08-29 | 1993-12-23 | Fischer Ag Georg | Molding process and equipment |
| DE3836876C2 (en) * | 1988-10-29 | 1994-06-09 | Badische Maschf Gmbh | Method and device for compacting foundry molding material |
| DE3937254A1 (en) * | 1989-11-09 | 1991-05-16 | Badische Maschf Gmbh | DEVICE FOR COMPRESSING FOUNDRY MOLDING MATERIALS |
| CH682547A5 (en) * | 1990-04-20 | 1993-10-15 | Fischer Ag Georg | Method and apparatus for compressing granular molding materials. |
| CH686412A5 (en) * | 1992-03-10 | 1996-03-29 | Fischer Georg Giessereianlagen | A method of compacting molding sand for molds. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2844464C2 (en) * | 1978-10-12 | 1983-03-24 | Bühler, Eugen, Dipl.-Ing., 8871 Burtenbach | Method and device for compacting casting molds |
| DE3025993C2 (en) * | 1980-07-09 | 1983-11-10 | Sintokogio, Ltd., Nagoya, Aichi | Molding device for explosive compression of a sand-like filler material |
| DE3243951A1 (en) * | 1981-12-28 | 1983-07-07 | BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe | Process and apparatus for the compression of foundry mould material |
| CH649040A5 (en) * | 1982-10-08 | 1985-04-30 | Battelle Memorial Institute | DEVICE FOR PROJECTING DROPLETS OF AN ELECTRICALLY CONDUCTIVE LIQUID. |
-
1982
- 1982-07-20 CH CH4432/82A patent/CH659012A5/en not_active IP Right Cessation
-
1983
- 1983-06-14 DE DE3321439A patent/DE3321439C2/en not_active Expired
- 1983-07-07 IT IT21976/83A patent/IT1194303B/en active
- 1983-07-18 JP JP58129590A patent/JPS5927752A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IT8321976A0 (en) | 1983-07-07 |
| DE3321439C2 (en) | 1986-10-30 |
| CH659012A5 (en) | 1986-12-31 |
| DE3321439A1 (en) | 1984-02-02 |
| JPS5927752A (en) | 1984-02-14 |
| IT1194303B (en) | 1988-09-14 |
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