EP0482458A1 - Device and method for the manufacture of foundry mold parts - Google Patents

Device and method for the manufacture of foundry mold parts 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
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Prior art keywords
sand
shooting
magazines
different
molded parts
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EP91117435A
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German (de)
French (fr)
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EP0482458B1 (en
Inventor
Reiner Rommel
Werner Landua
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Adolf Hottinger Maschinenbau GmbH
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Adolf Hottinger Maschinenbau GmbH
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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 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.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

To produce mould parts, in particular those which must be connected to one another with an accurate fit, such as sand cores or masks and adapt production individually to the individual mould parts, the invention provides: a device for producing mould parts for foundry purposes, such as sand cores or masks or the like, with a die unit (2) for at least two mould parts, with in each case at least two shooting heads (7a, 7b) and sand magazines (6a, 6b) with separate shot-hood ejection regions, the shooting heads (7a, 7b) each being suppliable by their own shooting-air sources (11a, 11b). The invention also proposes a method for the production of mould parts for foundry purposes, such as sand cores or masks or the like, according to which a die with moulding cavities for at least two mould parts to be connected to one another is moved under a shooting station which in each case has at least two shooting heads and sand magazines with separate shooting-hood ejection regions, sand furthermore being shot out of the magazines into the die-unit cavities for the different mould parts at different pressures and with a different sand composition.

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Herstellung von Formteilen für Gießereizwecke.The invention relates to an apparatus and a method for producing molded parts for foundry purposes.

Formteile, wie Sandkern oder -maskenteile oder dergleichen, für Gießereizwecke, die in der Regel ineinander verbunden werden, beispielsweise zusammengesteckt werden, um eine komplette Sandform, wie einen Sandkern oder eine - maskenform zu schaffen, sollen in der Regel zeitlich und räumlich so eng benachbart hergestellt werden, daß sie unmittelbar nach der Herstellung automatisch miteinander verbunden bzw. zusammengeführt werden, wobei eine hohe Fertigungsgenauigkeit im Hinblick auf das automatische Verbinden notwendig ist.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.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung und ein Verfahren zum Herstellen derartiger Formteile zu schaffen, die unter Erreichung der vorgenannten Ziele den Herstellungsvorgang verbessert bzw. die Herstellung unter Verwendung von gießereispezifischen unterschiedlichen Formstoffen sowie der damit verbundenen formstoffspezifischen Verarbeitungsparametern erlaubt und insbesondere den Arbeits- und Zeitaufwand zu reduzieren gestattet.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.

Zur Lösung der Aufgabe schlägt die Erfindung vor: Eine Vorrichtung zur Herstellung von Formteilen für Gießereizwecke, wie Sandkerne oder - masken oder dergleichen, mit einer Werkzeugeinheit für mindestens zwei Formteile, mit jeweils mindestens zwei Schießköpfen und Sandmagazinen mit separaten Schußhauben-Ausschußbereichen, wobei die Schießköpfe jeweils durch eigene Schießluftquellen beaufschlagbar sind, und ein Verfahren zur Herstellung von Formteilen für Gießereizwecke, wie Sandkerne oder -masken oder dergleichen, wobei ein Werkzeug mit Formhohlräumen für zumindestens zwei miteinander zu verbindende Formteile einer Form unter eine Schießstation verfahren wird, die jeweils mindestens zwei Schießköpfe und Sandmagazine mit separaten Schießhauben-Ausschußbereichen aufweist, und wobei aus den Magazinen Sand in die Werkzeugeinheit-Hohlräume für die verschiedenen Formteile mit unterschiedlichem Druck und unterschiedlicher Sandzusammensetzung eingeschossen werden.To achieve the object, 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.

Erfindungsgemäß wird also eine Werkzeugeinheit vorgesehen, in der vorzugsweise zwei, gegebenenfalls auch mehrere Sand-Formteile gleichzeitig hergestellt werden können, vorzugsweise solche Formteile, die zur Bildung der Gesamtform miteinander verbunden, beispielsweise zusammengesteckt werden müssen. Die Erfindung bildet die Voraussetzung für ein automatisches Zusammenstecken, da die Formteile einerseits räumlich eng benachbart zur Verfügung gestellt, andererseits mit hoher Präzision aneinander angepaßt sein können. Die Erfindung bietet sich insbesondere an, wenn die herzustellenden Formteile relativ klein sind, so daß die Herstellung jedes einzelnen Formteils in einer eigenen Form eine Vervielfachung der Arbeitsvorgänge und damit einen erhöhten Arbeits-und Zeitaufwand bedingen würde. Wesentlich ist, daß die erfindungsgemäße Vorrichtung bei einer gemeinsamen Schußhaube mit aber unterschiedlichen Ausschußbereichen und gegebenenfalls einer gemeinsamen Schießplatte für jedes Formteil mit einer eigenen Schießluftquelle versehen ist. Hierdurch ist es möglich, zwar mit den jeweils größtmöglichen, aber unterschiedlichen Arbeitsdrücken zu arbeiten. Es gibt Formteile, bei denen zur Herstellung ein geringerer Arbeitsdruck erforderlich ist. Würde hier mit einem höheren Arbeitsdruck gearbeitet werden, weil ein anderes Formteil einen solch höheren Arbeitsdruck erfordert, so könnte sich ein erhöhter Verschleiß ergeben, der durch die Möglichkeit der Anpassung des Schießluftdrucks reduziert werden kann, so daß in bevorzugter Ausgestaltung vorgesehen ist, daß die Sandmagazine über die Schießköpfe mit unterschiedlichen Drükken beaufschlagbar sind.According to the invention, therefore, a tool unit is provided 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. It is essential that 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. This makes it possible to work with the greatest possible but different working pressures. There are molded parts in which a lower working pressure is required for the production. If a higher working pressure were used here because another molded part requires such a higher working pressure, this could result in increased wear, which can be reduced by the possibility of adjusting the air pressure, so that in a preferred embodiment it is provided that the sand magazines Different pressures can be applied via the shooting heads.

Eine andere bevorzugte Ausgestaltung sieht vor, daß mehrere Sandbunker derart angeordnet sind, daß die Sandmagazine aus ihnen getrennt, aber gleichzeitig befüllbar sind. Hierdurch wird ermöglicht mit unterschiedlichen Sandarten zu arbeiten, die ebenfalls an die entsprechenden Formteile angepaßt werden können. Eine weitere Ausgestaltung sieht vor, daß die Niveausensoren in den Sandmagazinen auf unterschiedlicher Höhe angeordnet sind. Hierdurch können auch für die einzelnen Formteile unterschiedliche Sandmengen in die Sandmagazine eingefüllt werden und nicht nur gleiche Mengen, die dann im Grunde nur die Herstellung gleicher Formteile oder aber von Formteilen mit gleichem Volumen in einer Werkzeugeinheit erlauben würden. Die eigenen den entsprechenden Formteilen zugeordneten Schießluftquellen erlauben im übrigen auch unterschiedliche Schußzeiten.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.

Weitere bevorzugte Ausgestaltungen des Verfahrens sehen vor, daß Sand aus verschiedenen Sandbunkern bis auf unterschiedliche Höhen in miteinander verbundene Sandmagazine eingefüllt wird und daß der Sand mit unterschiedlichen Schußzeiten in die Werkzeugeinheit-Hohlräume für die Formteile eingeblasen wird.Further preferred embodiments of the method provide that 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.

Insgesamt bietet die Erfindung eine variable Lösung für schwierige Formteile, d.h. schwierige Sandkerne und -masken unter individueller Einstellung der Füllhöhe der Formstoffe im Schießaggregat vor dem Schuß. Die Erfindung bietet weiterhin kürzere Sandwege und damit eine bessere und höhere Verdichtung der Formteile. Gegenüber bekannten Vorrichtungen kann eine Reduzierung der Schießdrücke vorgenommen werden, wodurch sich wiederum eine Verlängerung der Standzeit der Werkzeuge ergibt.Overall, 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.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den Ansprüchen und aus der nachfolgenden Beschreibung, in der ein Ausführungsbeispiel der erfindungsgemäßen Vorrichtung unter Bezugnahme auf die Zeichnung im einzelnen erläutert ist. Dabei zeigt die einzige Figur:

  • eine erfindungsgemäße Vorrichtung in
  • in schematischer Darstellung.
Further advantages and features of the invention result from the claims and from the following description, in which an embodiment of the device according to the invention is explained in detail with reference to the drawing. The only figure shows:
  • an inventive device in
  • in a schematic representation.

Die erfindungsgemäße Vorrichtung 1 zur Herstellung von Formteilen, wie Kernen und Masken für Gießereizwecke weist eine gemeinsame Werkzeugeinheit 2 für die entsprechenden Formteile auf. Die Werkzeugeinheit kann dabei aus einem horizontal geteilten Ober- und einem Unterwerkzeug gebildet sein oder einem vertikal geteilten Werkzeugvorder- und einem Werkzeughinterteil, die aber zum Befüllen fest verbunden und gemeinsam bewegbar sind. In einer derartigen Werkzeugeinheit können beispielsweise gleichzeitig zwei Form- oder Kernteile einer aus diesen (und gegebenenfalls weiteren Teilen) zu erstellenden Form, in der das entsprechende Werkstück später abgegossen wird, hergestellt werden. So können in der Werkzeugeinheit 2 beispielsweise gleichzeitig Wassermantelkern und Sohlenkern eines Verbrennungsmotors hergestellt werden.The device 1 according to the invention 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. In 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. For example, water jacket core and sole core of an internal combustion engine can be produced simultaneously in tool unit 2.

Die Hohlräume des Werkzeugs 2 stehen zum Einschießen des Sandes über eine gemeinsame Schießplatte 3, die in einer gemeinsamen Schußhaube 4 mit zwei separaten Ausschußbereichen 4a, 4b mit letzteren zugeordneten getrennten und unabhängigen Sandmagazinen 6a, 6b in Verbindung. Jedes der Sandmagazine 6a, 6b ist mit einem Schießkopf 7a, 7b versehen, der jeweils über eine Druckluftleitung 8a, 8b über Ventile 9a, 9b mit jeweils einem Druckluftvolumen bzw. -reservoir 11 a, 11 b in Verbindung steht. Oberhalb der Schießköpfe 7a, 7b sind Sandbunker 12a, 12b angeordnet, aus denen die Sandzufuhr zu den Sandmagazinen 6a, 6b über Absperrorgane 13a, 13b gesteuert werden kann. An den Sandmagazinen 6a, 6b sind Niveausonden 14a, 14b angeordnet, die auf unterschiedlicher Höhe vorgesehen sein können und die die Absperrorgane 13a, 13b steuern.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. Above the shooting heads 7a, 7b, 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.

Von den Sandbunkern 12a, 12b können je nach den unterschiedlichen Anforderungen zur Herstellung der Formteile bzw. Kernteile unterschiedliche Sandarten, z.B. groberer oder weniger grober Sand in die Sandmagazine 6a, 6b mit gegebenenfalls unterschiedlicher Menge entsprechend der zur Herstellung des gemeinsamen Werkzeugs 2 zu bildenden einzelnen Formteils eingefüllt werden. Nach Erreichen der gewünschten Menge, die durch die Niveausensoren 14a, 14b festgestellt wird, werden die Absperrorgane 13a, 13b abgesperrt.Depending on the different requirements for producing the molded parts or core parts, different types of sand, e.g. Coarse or less coarse sand can be filled into the sand magazines 6a, 6b with a different amount, if necessary, in accordance with the individual molded part to be formed for producing the common tool 2. After reaching the desired amount, which is determined by the level sensors 14a, 14b, the shut-off devices 13a, 13b are shut off.

Parallel hierzu werden die Druckluftreservoirs 11 a, 11 auf den gewünschten, gegebenenfalls unterschiedlichen Druck gebracht. Anschließend werden die Ventile 9a, 9b geöffnet. Die unter hohem Druck in den Reservoirs 11 a, 11 stehende Druckluft dringt über die Schießköpfe 7a, 7b in die Sandmagazine 6a, 6b ein und treibt den dort befindlichen Sand über die entsprechenden Ausschußbereiche 4a, 4b der gemeinsamen Schußhaube 4 sowie die Schießplatte 3 mit unterschiedlichen Schießdrücken in die Hohlräume der Werkzeugeinheit 2.In parallel, 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.

Claims (9)

1. Vorrichtung zur Herstellung von Formteilen für Gießereizwecke, wie Sandkerne oder -masken oder dergleichen, mit einer Werkzeugeinheit (2) für mindestens zwei Formteile, mit jeweils mindestens zwei Schießköpfen (7a, 7b) und Sandmagazinen (6a, 6b) mit separaten Schußhauben-Ausschußbereichen (4a, 4b), wobei die Schießköpfe (7a, 7b) jeweils durch eigene Schießluftquellen (11 a, 11 b) beaufschlagbar sind.1. Device for producing molded parts for foundry purposes, such as sand cores or masks or the like, with a tool unit (2) for at least two molded parts, each with at least two shooting heads (7a, 7b) and sand magazines (6a, 6b) with separate firing hood Committee areas (4a, 4b), wherein the shooting heads (7a, 7b) can each be acted upon by their own shooting air sources (11 a, 11 b). 2. Vorrichtung nach Anspruch 1, gekennzeichnet durch mehrere Sandbunker (12a, 12b), die derart angeordnet sind, daß die Sandmagazine (6a, 6b) aus ihnen gleichzeitig, aber separat befüllbar sind.2. Device according to claim 1, characterized by a plurality of sand bunkers (12a, 12b) which are arranged such that the sand magazines (6a, 6b) can be filled from them simultaneously but separately. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß Niveausensoren (14a, 14b) in den Sandmagazinen (6a, 6b) auf unterschiedlicher Höhe angeordnet sind und unterschiedliche Sandmengen verarbeitet werden können.3. Apparatus according to claim 1 or 2, characterized in that level sensors (14a, 14b) in the sand magazines (6a, 6b) are arranged at different heights and different amounts of sand can be processed. 4. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Sandmagazine (6a, 6b) über die Schießköpfe (7a, 7b) mit unterschiedlichen Drücken beaufschlagbar sind.4. Device according to one of the preceding claims, characterized in that the sand magazines (6a, 6b) via the shooting heads (7a, 7b) can be acted on with different pressures. 5. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Schußhauben-Ausschußbereiche (4a, 4b) an ihrer Unterseite mit höchstens zwei gemeinsamen Schießplatten (3) versehen sind.5. Device according to one of the preceding claims, characterized in that the shot cap reject areas (4a, 4b) are provided on their underside with at most two common shooting plates (3). 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Schußhauben-Ausschußbereiche (4a, 4b) an ihrer Unterseite mit einer gemeinsamen Schießplatte (3) versehen sind.6. The device according to claim 5, characterized in that the shot cap reject areas (4a, 4b) are provided on their underside with a common shooting plate (3). 7. Verfahren zur Herstellung von Formteilen für Gießereizwecke, wie Sandkerne oder -masken oder dergleichen, wobei ein Werkzeug mit Formhohlräumen für zumindestens zwei miteinander zu verbindende Formteile einer Form unter eine Schießstation verfahren wird, die jeweils mindestens zwei Schießköpfe und Sandmagazine mit separaten Schießhauben-Ausschußbereichen aufweist, und wobei aus den Magazinen Sand in die Werkzeug-Kern-Masken für die verschiedenen Formteile mit unterschiedlichem Druck und unterschiedlicher Sandzusammensetzung eingeschossen werden.7. A process for the production of 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 where sand is shot into the tool core masks for the various molded parts with different pressure and different sand composition from the magazines. 8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß Sand aus verschiedenen Sandbunkern bis auf unterschiedliche Höhen zur Bereitstellung unterschiedlicher Sandmengen in miteinander verbundene Sandmagazine eingefüllt wird.8. The method according to claim 7, characterized in that sand from different sand bunkers is filled up to different heights to provide different amounts of sand in interconnected sand magazines. 9. Verfahren nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß der Sand mit unterschiedlichen Schußzeiten in die Werkzeugeinheit-Hohlräume für die Formteile eingeschossen wird.9. The method according to claim 7 or 8, characterized in that the sand is shot with different shot times in the tool unit cavities for the molded parts.
EP91117435A 1990-10-25 1991-10-12 Device and method for the manufacture of foundry mold parts Revoked EP0482458B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4033887A DE4033887C2 (en) 1990-10-25 1990-10-25 Device and method for producing molded parts for foundry purposes
DE4033887 1990-10-25

Publications (2)

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

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Family Applications (1)

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EP91117435A Revoked EP0482458B1 (en) 1990-10-25 1991-10-12 Device and method for the manufacture of foundry mold parts

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US (1) US5291936A (en)
EP (1) EP0482458B1 (en)
JP (1) JPH05123827A (en)
DE (2) DE4033887C2 (en)
ES (1) ES2060267T3 (en)

Cited By (1)

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WO1995009706A1 (en) * 1993-10-07 1995-04-13 Adolf Hottinger Maschinenbau Gmbh Shooting head filling device

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DE19542384C2 (en) * 1995-11-14 1999-05-12 Joachim Laempe Device for filling molding material with a shooting cylinder
JPH09271897A (en) * 1996-04-05 1997-10-21 Sintokogio Ltd Method for supplying sand into blow head in blow-in type molding machine
ES2155701T3 (en) * 1996-11-04 2001-05-16 Hottinger Maschb Gmbh DEVICE AND PROCEDURE FOR THE MANUFACTURE OF MATRICES OR PACKS OF MALE READY TO FOUND.
DE19823134C1 (en) * 1998-05-23 1999-12-02 Joachim Laempe Method and device for the production of moldings for foundry purposes from sand
DE10053630A1 (en) * 2000-10-28 2002-05-02 Bayerische Motoren Werke Ag Production of a sand casting mold in metallurgy comprises measuring the filling level in a molding container, and changing a process parameter during the filling and compressing process depending on the filling level measuring signal
US7819168B2 (en) * 2006-07-27 2010-10-26 Hunter Automated Machinery Corporation Method and apparatus for transferring sand into flask of molding machine
JP5458698B2 (en) * 2009-06-30 2014-04-02 トヨタ自動車株式会社 Casting sand blowing device and casting sand blowing method
CN102151800A (en) * 2010-11-16 2011-08-17 苏州苏铸成套装备制造有限公司 Sand shooting device
CN103192035B (en) * 2012-01-05 2015-08-05 广西玉柴机器股份有限公司 Compound core penetrates sand device and method
CN103978163A (en) * 2014-05-29 2014-08-13 广东鸿特精密技术（台山）有限公司 Process for manufacturing multi-branch complex sand core through precoated sand by low pressure and slow stacking
CN109202025B (en) * 2018-11-13 2021-08-06 黄山中发耐磨材料有限公司 Sand shell core type pouring method
CN109746400B (en) * 2019-03-11 2021-03-30 溧阳市万盛铸造有限公司 Continuous production type precoated sand core shooting machine
CN110918896B (en) * 2019-12-10 2021-01-29 莱州新安达汽车零部件有限公司 Mechanical device for automatically processing core making of shell core machine and operation method

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DE2110270A1 (en) * 1970-04-14 1971-10-28 H. J. Welling - Technische und industrielle Beratung GmbH, 4150 Krefeld Foundry blow moulding machine
DE2304564A1 (en) * 1973-01-31 1974-08-08 Cobomat Apparatebau Gmbh Automatic cold-box mould making machine - includes weighing machine and mould assembly devices
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 (en) * 1983-11-08 1985-05-10 Rheinische Maschf Eisen AUTOMATIC FILLING DEVICE OF A CONTAINER

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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1113720A (en) * 1953-12-29 1956-04-03 Fischer Ag Georg Blowing sand mold and core machine for foundry
DE2110270A1 (en) * 1970-04-14 1971-10-28 H. J. Welling - Technische und industrielle Beratung GmbH, 4150 Krefeld Foundry blow moulding machine
DE2304564A1 (en) * 1973-01-31 1974-08-08 Cobomat Apparatebau Gmbh Automatic cold-box mould making machine - includes weighing machine and mould assembly devices
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 (en) * 1983-11-08 1985-05-10 Rheinische Maschf Eisen AUTOMATIC FILLING DEVICE OF A CONTAINER

Cited By (2)

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

Also Published As

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

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