EP0482458A1 - Dispositif et procédé pour la fabrication des parties de moule de fonderie - Google Patents

Dispositif et procédé pour la fabrication des parties de moule de fonderie Download PDF

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Publication number
EP0482458A1
EP0482458A1 EP91117435A EP91117435A EP0482458A1 EP 0482458 A1 EP0482458 A1 EP 0482458A1 EP 91117435 A EP91117435 A EP 91117435A EP 91117435 A EP91117435 A EP 91117435A EP 0482458 A1 EP0482458 A1 EP 0482458A1
Authority
EP
European Patent Office
Prior art keywords
sand
shooting
magazines
different
molded parts
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.)
Granted
Application number
EP91117435A
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German (de)
English (en)
Other versions
EP0482458B1 (fr
Inventor
Reiner Rommel
Werner Landua
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Adolf Hottinger Maschinenbau GmbH
Original Assignee
Adolf Hottinger Maschinenbau GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6416994&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0482458(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Adolf Hottinger Maschinenbau GmbH filed Critical Adolf Hottinger Maschinenbau GmbH
Publication of EP0482458A1 publication Critical patent/EP0482458A1/fr
Application granted granted Critical
Publication of EP0482458B1 publication Critical patent/EP0482458B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • 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 invention relates to an apparatus and a method for producing molded parts for foundry purposes.
  • Shaped parts such as sand core or mask parts or the like, for foundry purposes, which are usually connected to one another, for example put together to create a complete sand mold, such as a sand core or a - mask shape, should usually be so closely related in terms of time and space are produced so that they are automatically connected or merged with one another immediately after production, a high degree of manufacturing accuracy being necessary with regard to the automatic connection.
  • the invention has for its object to provide a device and a method for producing such molded parts, which improves the manufacturing process while achieving the aforementioned objectives or the production using foundry-specific different molding materials and the associated molding material-specific processing parameters, and in particular the working and to reduce the time required.
  • the invention proposes: A device for the production of molded parts for foundry purposes, such as sand cores or masks or the like, with a tool unit for at least two molded parts, each with at least two shooting heads and sand magazines with separate shooting hood reject areas, the shooting heads each can be acted upon by its own shooting air sources, and a method for producing molded parts for foundry purposes, such as sand cores or masks or the like, a tool having mold cavities for at least two molded parts of a mold to be connected to one another being moved under a shooting station, each of which has at least two shooting heads and sand magazines with separate shooting hood reject areas, and wherein sand is injected from the magazines into the tool unit cavities for the different molded parts with different pressure and different sand composition.
  • a tool unit in which preferably two, and possibly also several, sand molded parts can be produced at the same time, preferably those molded parts which have to be connected to one another, for example put together, to form the overall shape.
  • the invention forms the prerequisite for an automatic assembly, since on the one hand the molded parts are provided in close proximity to one another, and on the other hand can be adapted to one another with high precision.
  • the invention is particularly useful when the molded parts to be produced are relatively small, so that the production of each individual molded part in its own form would require a multiplication of the work processes and thus an increased expenditure of work and time.
  • the device according to the invention is provided with its own firing air source in the case of a common firing hood but with different reject areas and, if appropriate, a common firing plate for each molded part.
  • Another preferred embodiment provides that several sand bunkers are arranged in such a way that the sand magazines can be separated from them, but can be filled at the same time. This makes it possible to work with different types of sand, which can also be adapted to the corresponding moldings.
  • Another embodiment provides that the level sensors in the sand magazines are arranged at different heights. As a result, different amounts of sand can be filled into the sand magazines for the individual molded parts and not just the same quantities, which would then basically only allow the production of the same molded parts or of molded parts with the same volume in one tool unit.
  • the own shooting air sources assigned to the corresponding molded parts also allow different shooting times.
  • sand from different sand bunkers is filled into interconnected sand magazines up to different heights and that the sand is blown into the tool unit cavities for the molded parts with different shot times.
  • the invention offers a variable solution for difficult molded parts, ie difficult sand cores and masks with individual adjustment of the fill level of the molded materials in the shooting unit before the shot.
  • the invention also offers shorter sand paths and thus better and higher compression of the molded parts. Compared to known devices, a reduction in Shooting pressures are made, which in turn results in an extension of the tool life.
  • the device 1 for producing molded parts, such as cores and masks for foundry purposes, has a common tool unit 2 for the corresponding molded parts.
  • the tool unit can be formed from a horizontally divided upper and a lower tool or a vertically divided tool front and a tool rear part, which, however, are firmly connected and can be moved together for filling.
  • a tool unit of this type for example, two mold or core parts of a mold to be produced from these (and possibly further parts), in which the corresponding workpiece is later cast, can be produced at the same time.
  • water jacket core and sole core of an internal combustion engine can be produced simultaneously in tool unit 2.
  • the cavities of the tool 2 are for shooting in the sand via a common firing plate 3, which is connected in a common firing hood 4 with two separate reject areas 4a, 4b to the separate and independent sand magazines 6a, 6b assigned to the latter.
  • Each of the sand magazines 6a, 6b is provided with a shooting head 7a, 7b, each of which is connected to a compressed air volume or reservoir 11a, 11b via a compressed air line 8a, 8b via valves 9a, 9b.
  • sand bunkers 12a, 12b are arranged, from which the sand supply to the sand magazines 6a, 6b can be controlled via shut-off devices 13a, 13b.
  • Level probes 14a, 14b are arranged on the sand magazines 6a, 6b, which can be provided at different heights and which control the shut-off elements 13a, 13b.
  • sand e.g. Coarse or less coarse sand
  • the shut-off devices 13a, 13b are shut off.
  • the compressed air reservoirs 11 a, 11 are brought to the desired, possibly different, pressure.
  • the valves 9a, 9b are then opened.
  • the compressed air under high pressure in the reservoirs 11a, 11 penetrates into the sand magazines 6a, 6b via the shooting heads 7a, 7b and drives the sand located there via the corresponding reject areas 4a, 4b of the common shooting hood 4 and the shooting plate 3 with different Firing presses into the cavities of the tool unit 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP91117435A 1990-10-25 1991-10-12 Dispositif et procédé pour la fabrication des parties de moule de fonderie Revoked EP0482458B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4033887A DE4033887C2 (de) 1990-10-25 1990-10-25 Vorrichtung und Verfahren zur Herstellung von Formteilen für Gießereizwecke
DE4033887 1990-10-25

Publications (2)

Publication Number Publication Date
EP0482458A1 true EP0482458A1 (fr) 1992-04-29
EP0482458B1 EP0482458B1 (fr) 1994-07-27

Family

ID=6416994

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91117435A Revoked EP0482458B1 (fr) 1990-10-25 1991-10-12 Dispositif et procédé pour la fabrication des parties de moule de fonderie

Country Status (5)

Country Link
US (1) US5291936A (fr)
EP (1) EP0482458B1 (fr)
JP (1) JPH05123827A (fr)
DE (2) DE4033887C2 (fr)
ES (1) ES2060267T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995009706A1 (fr) * 1993-10-07 1995-04-13 Adolf Hottinger Maschinenbau Gmbh Dispositif de remplissage de tetes de tirage

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19542384C2 (de) * 1995-11-14 1999-05-12 Joachim Laempe Vorrichtung zum Einfüllen von Formstoff mit einem Schießzylinder
JPH09271897A (ja) * 1996-04-05 1997-10-21 Sintokogio Ltd 吹き込み式鋳型造型機のブローヘッドへの砂供給方法
CA2270612A1 (fr) * 1996-11-04 1998-05-14 Hottinger Maschinenbau Gmbh Dispositif et procede de fabrication de masques de coulee ou de paquets de noyaux de coulee
DE19823134C1 (de) * 1998-05-23 1999-12-02 Joachim Laempe Verfahren und Vorrichtung zur Herstellung von Formteilen für Gießereizwecke aus Sand
DE10053630A1 (de) * 2000-10-28 2002-05-02 Bayerische Motoren Werke Ag Verfahren zum Herstellen einer Sandgussform
US7819168B2 (en) * 2006-07-27 2010-10-26 Hunter Automated Machinery Corporation Method and apparatus for transferring sand into flask of molding machine
JP5458698B2 (ja) * 2009-06-30 2014-04-02 トヨタ自動車株式会社 鋳物砂の吹き込み装置、及び鋳物砂の吹き込み方法
CN102151800A (zh) * 2010-11-16 2011-08-17 苏州苏铸成套装备制造有限公司 射砂装置
CN103192035B (zh) * 2012-01-05 2015-08-05 广西玉柴机器股份有限公司 复合砂芯射砂装置及方法
CN103978163A (zh) * 2014-05-29 2014-08-13 广东鸿特精密技术（台山）有限公司 一种低气压慢堆积覆膜砂多分枝复杂砂芯的制造工艺
CN109202025B (zh) * 2018-11-13 2021-08-06 黄山中发耐磨材料有限公司 砂壳芯型浇注方法
CN109746400B (zh) * 2019-03-11 2021-03-30 溧阳市万盛铸造有限公司 一种连续化生产型覆膜砂射芯机
CN110918896B (zh) * 2019-12-10 2021-01-29 莱州新安达汽车零部件有限公司 壳芯机制芯自动加工用机械装置及操作方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1113720A (fr) * 1953-12-29 1956-04-03 Fischer Ag Georg Machine à faire les moules et noyaux de sable par soufflage pour la fonderie
DE2110270A1 (en) * 1970-04-14 1971-10-28 H. J. Welling - Technische und industrielle Beratung GmbH, 4150 Krefeld Foundry blow moulding machine
DE2304564A1 (de) * 1973-01-31 1974-08-08 Cobomat Apparatebau Gmbh Vorrichtung zur automatischen herstellung von formen und kernen fuer giessereizwecke
CH593109A5 (en) * 1975-06-03 1977-11-30 Hitachi Metals Ltd Core-blowing machine using the hot box process - for high speed automatic prodn. of sand cores
FR2554416A1 (fr) * 1983-11-08 1985-05-10 Rheinische Maschf Eisen Dispositif de remplissage automatique d'un recipient

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE712531C (de) * 1939-09-08 1941-10-21 Friedrich Rolff Verfahren zum Verdichten von in Behaelter durch Druckluftfuellmaschinen einzufuehrendem pulverfoermigem, koernigem, gegebenenfalls angefeuchtetem Schuettgut
DE839247C (de) * 1950-04-19 1952-05-19 Masch U Werkzeugfabrik Kabel Steuerung fuer Sandblasformmaschinen
DE1057293B (de) * 1958-03-19 1959-05-14 Rheinische Maschinenfabrik Kernbuechse zur Verwendung an Kernformmaschinen
DE1583526B1 (de) * 1967-08-18 1971-02-04 Buehler Dipl Ing Eugen Verfahren und Formanlage zum Herstellen waagrecht geteilter kastenloser Sandformen mittels doppelseitiger horizontaler Modellplatte,Formrahmen und vertikal beweglichem Pressstempel
JPS5313154B2 (fr) * 1973-06-13 1978-05-08
CH574284A5 (fr) * 1974-07-10 1976-04-15 Inventio Ag
FR2461539A1 (fr) * 1979-07-16 1981-02-06 Inst Liteinogo Mash Installation pour la fabrication de moules et de noyaux de fonderie a partir de melanges fluides
DE3021644A1 (de) * 1979-08-22 1981-03-26 Sintokogio, Ltd., Nagoya, Aichi Formmaschine
DE3021592A1 (de) * 1979-10-09 1981-04-23 Sintokogio, Ltd., Nagoya, Aichi Formmaschine
JPH01299743A (ja) * 1988-05-27 1989-12-04 Sintokogio Ltd 無枠式鋳型造型装置
FR2643579B1 (fr) * 1989-02-24 1993-12-31 Kuhn Sa Machine a tirer des noyaux de fonderie

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1113720A (fr) * 1953-12-29 1956-04-03 Fischer Ag Georg Machine à faire les moules et noyaux de sable par soufflage pour la fonderie
DE2110270A1 (en) * 1970-04-14 1971-10-28 H. J. Welling - Technische und industrielle Beratung GmbH, 4150 Krefeld Foundry blow moulding machine
DE2304564A1 (de) * 1973-01-31 1974-08-08 Cobomat Apparatebau Gmbh Vorrichtung zur automatischen herstellung von formen und kernen fuer giessereizwecke
CH593109A5 (en) * 1975-06-03 1977-11-30 Hitachi Metals Ltd Core-blowing machine using the hot box process - for high speed automatic prodn. of sand cores
FR2554416A1 (fr) * 1983-11-08 1985-05-10 Rheinische Maschf Eisen Dispositif de remplissage automatique d'un recipient

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995009706A1 (fr) * 1993-10-07 1995-04-13 Adolf Hottinger Maschinenbau Gmbh Dispositif de remplissage de tetes de tirage
US5630462A (en) * 1993-10-07 1997-05-20 Adolf Hottinger Maschinenbau Gmbh Device for filling shooting heads

Also Published As

Publication number Publication date
DE4033887A1 (de) 1992-04-30
EP0482458B1 (fr) 1994-07-27
JPH05123827A (ja) 1993-05-21
DE59102342D1 (de) 1994-09-01
DE4033887C2 (de) 1994-07-28
US5291936A (en) 1994-03-08
ES2060267T3 (es) 1994-11-16

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