EP2452764B1 - Feeder cap with integrated transport device - Google Patents

Feeder cap with integrated transport device Download PDF

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Publication number
EP2452764B1
EP2452764B1 EP11188170.2A EP11188170A EP2452764B1 EP 2452764 B1 EP2452764 B1 EP 2452764B1 EP 11188170 A EP11188170 A EP 11188170A EP 2452764 B1 EP2452764 B1 EP 2452764B1
Authority
EP
European Patent Office
Prior art keywords
feeder
cap
casting
transport device
feeder cap
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.)
Not-in-force
Application number
EP11188170.2A
Other languages
German (de)
French (fr)
Other versions
EP2452764A1 (en
Inventor
Hans-Peter Puy
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.)
Huppert Engineering & Co KG GmbH
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Huppert Engineering & Co KG GmbH
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Publication of EP2452764A1 publication Critical patent/EP2452764A1/en
Application granted granted Critical
Publication of EP2452764B1 publication Critical patent/EP2452764B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/088—Feeder heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C21/00—Flasks; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/04—Casting in, on, or around objects which form part of the product for joining parts

Definitions

  • the present invention relates to the foundry technology and that a feeder cap, which encloses the space for a feeder body, in which during the casting process, the material flows or rises, which serves to compensate for the occurring during the solidification of the casting volume shrinkage.
  • Such feeder caps as z. B. off WO 2003/043 761 A2 are known, consist of a ceramic or a ceramic base material with heat-insulating or exothermic properties and the enclosed in them casting material during the phase transition liquid ⁇ firmly in the casting as long as possible liquid to allow so a reflow (“Dichtspelsen”) and order to prevent a volume deficit ("voids") in the casting.
  • the so physically caused volume deficit is transferred from the casting into the contents of the feeder cap.
  • the shape of the feeder caps is usually cylindrical and led out of the mold or embedded as blank feeder in the molding material.
  • the feeder bodies on a casting are generally removed from the molding material during the unpacking operation of the casting. This can be done by "natural" dropping or by breaking off the feeder body on a shaker hopper station. Depending on the organization of the processes, the separation can also take place in a separate operation, for. B. by knocking off, cutting, separating with separating wedge or the like. After completion of casting and gutting of the casting this is transported on what costly techniques and manual labor are necessary.
  • the DE 1 934 239 U likewise proposes a casting support means from which a casting-holding member is removed, to which the casting is attached during the casting process.
  • the casting-holding element is introduced into a cavity in the closed mold part and this subsequently shed. As a result, a hanger for the casting is formed.
  • the DE 195 03 754 A1 provides in this context that the casting in the form of a Gusstraube with a front in the transport direction hanger is poured either in the form of a bolt or an eyelet or the like.
  • the beats EP 1 498 197 A1 that during gravity casting of a crankcase by introducing liquid casting material from below a sprue system is provided, in which the sprue can be used after cooling of the casting material as a transport hook.
  • the object of the invention is to simplify this removal and further transport and to make manual work unnecessary (simplification of work / humanization of the working world);
  • the degree of automation and the degree of optimization of the work processes should be increased, potential sources of error by reducing manual activities should be avoided and the quality of the end product should be increased.
  • the coupling part of the transport device for easily automatable onward transport of the casting is available, for.
  • a monorail or robotic arm system and the The feeder body with its transport device is separated from the cast workpiece only in the last operation.
  • all previous work operations can take place automatically from the transfer of emptying, including further cooling, blasting, direct visual inspections or such by means of camera, hardness tests and final inspection.
  • a discharge to perform smaller operations and manual intervention may be omitted.
  • the feeder cap 1 has a with her, z. B. by gluing, connected bottom 2 and a ceiling 3 with an opening, as used in commercial feeder caps for venting the mold during the casting process.
  • the feeder cap sits on the cavity for the casting 5 and encloses the space for the feeder body 4.
  • the casting 5 is surrounded by the molding material 7 and this of a mold frame 8 (or, for example, a mold).
  • An opening 9 in the bottom 2 has a tapered cross-section boundary, which has a notch at the junction between casting 5 and feeder body 4 result and favors the subsequent separation in the cleaning process.
  • the cap 1 includes a transport device 10 consisting of two or more armature arms 11 and a coupling part 12. The latter is used for cooperation with a removal system, with the finished cast-casting is transported further, z. B. for further cooling and other required processing steps in the manufacturing process.
  • the coupling part is a simple hook; according to the circumstances of the onward transport system, it may take the form of an eyelet, a bow or a special molded part.
  • the armature arms 11 dip into the cavity for the feeder body 4 and extend substantially at or in the vicinity of the inner surface of the cap wall and the coupling member 12 protrudes through the opening of the cap cover 3 to the outside.
  • the armature arms 11 have recesses 13, in which the casting material penetrates during the casting process, so that a positive connection between the feeder body 4 and transport device 10 is formed.
  • the attachment of the transport device in the feeder cap can be done during their manufacture by molding, pressing and firing of the ceramic material, for. B. by shooting in the shaping.
  • the attachment can also be made non-positively after the production of the storage cap, z. B. by jamming or by gluing. This must be taken into account and adapted to the existing molding and manufacturing processes in the manufacture of the feeder caps.

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

Description

Die vorliegende Erfindung betrifft die Gießereitechnik und zwar eine Speiserkappe, die den Raum für einen Speiserkörper umschließt, in den beim Gießvorgang das Material fließt bzw. steigt, welches zum Ausgleich des bei der Erstarrung des Gußteils auftretenden Volumenschwundes dient.The present invention relates to the foundry technology and that a feeder cap, which encloses the space for a feeder body, in which during the casting process, the material flows or rises, which serves to compensate for the occurring during the solidification of the casting volume shrinkage.

Solche Speiserkappen, wie sie z. B. aus WO 2003/043 761 A2 bekannt sind, bestehen aus einer Keramik bzw. einem keramischen Basismaterial mit wärmeisolierenden oder exothermen Eigenschaften und sollen das in ihnen eingeschlossene Gießmaterial während des Phasenübergangs flüssig → fest im Gußstück möglichst lange flüssig halten, um so ein Nachfließen ("Dichtspelsen") zu ermöglichen und um ein Volumendefizit ("Lunker") im Gußstück zu verhindern. Das so physikalisch bedingte Volumendefizit wird vom Gußstück in den Inhalt der Speiserkappe verlegt. Die Form der Speiserkappen ist meist zylindrisch und aus der Gußform herausgeführt oder als Blindspeiser im Formstoff eingebettet.Such feeder caps, as z. B. off WO 2003/043 761 A2 are known, consist of a ceramic or a ceramic base material with heat-insulating or exothermic properties and the enclosed in them casting material during the phase transition liquid → firmly in the casting as long as possible liquid to allow so a reflow ("Dichtspelsen") and order to prevent a volume deficit ("voids") in the casting. The so physically caused volume deficit is transferred from the casting into the contents of the feeder cap. The shape of the feeder caps is usually cylindrical and led out of the mold or embedded as blank feeder in the molding material.

Die Speiserkörper an einem Gußstück werden im Allgemeinen beim Auspackvorgang des Gußteils aus dem Formstoff entfernt. Dies kann durch "natürliches" Abfallen geschehen oder durch Abbrechen des Speiserkörpers auf einer Rüttelstrecken-Ausleerstation. Je nach der Organisation der Abläufe kann die Abtrennung auch in einem separaten Arbeitsgang erfolgen, z. B. durch Abschlagen, Abschneiden, Abtrennen mit Trennkeil oder dergl. Nach erfolgtem Guß und Entkernung des Gußteils wird dieses weiter transportiert, wozu aufwendige Techniken und auch manuelle Arbeit notwendig werden.The feeder bodies on a casting are generally removed from the molding material during the unpacking operation of the casting. This can be done by "natural" dropping or by breaking off the feeder body on a shaker hopper station. Depending on the organization of the processes, the separation can also take place in a separate operation, for. B. by knocking off, cutting, separating with separating wedge or the like. After completion of casting and gutting of the casting this is transported on what costly techniques and manual labor are necessary.

Aus DE 31 34 159 A1 ist bekannt, zum Zweck des Transports eines erstarrten Gußstücks eine Transportvorrichtung, z. B. einen Haken oder eine Öse, im Material des Gußstücks einzugießen. Dieses muß dann, z. B. durch Herausschrauben, entfernt werden, ebenso der Bereich des Gußstücks, in dem es sich befand.Out DE 31 34 159 A1 is known, for the purpose of transporting a solidified casting a transport device, for. As a hook or eyelet to pour in the material of the casting. This must then, z. B. by unscrewing, be removed, as well as the area of the casting in which it was located.

Die DE 1 934 239 U schlägt gleichermaßen ein Gussstück-Tragmittel vor, von welchem ein Gussteil-Halte-Element abgeht, an welchem das Gussstück während des Gießvorgangs befestigt wird. Hierzu wird das Gussteil-Halte-Element in einen Hohlraum in das geschlossene Formteil eingebracht und dieses anschließend vergossen. Hierdurch wird ein Aufhänger für das Gussteil gebildet.The DE 1 934 239 U likewise proposes a casting support means from which a casting-holding member is removed, to which the casting is attached during the casting process. For this purpose, the casting-holding element is introduced into a cavity in the closed mold part and this subsequently shed. As a result, a hanger for the casting is formed.

Die DE 195 03 754 A1 sieht in diesem Zusammenhang vor, dass das Gussstück in Form einer Gusstraube mit einem in Transportrichtung vorne befindlichen Aufhänger wahlweise in Form eines Bolzens oder einer Öse oder dergleichen abgegossen wird.The DE 195 03 754 A1 provides in this context that the casting in the form of a Gusstraube with a front in the transport direction hanger is poured either in the form of a bolt or an eyelet or the like.

Schließlich schlägt die EP 1 498 197 A1 vor, dass beim Schwerkraftgießen eines Kurbelgehäuses durch Einleiten flüssigen Gussmaterials von unten her ein Angusssystem vorgesehen ist, bei dem der Anguss nach Erkalten des Gussmaterials als Transporthaken verwendet werden kann.Finally, the beats EP 1 498 197 A1 that during gravity casting of a crankcase by introducing liquid casting material from below a sprue system is provided, in which the sprue can be used after cooling of the casting material as a transport hook.

Die Erfindung hat zur Aufgabe, diesen Ab- und Weitertransport einfacher zu gestalten und manuelle Arbeit entbehrlich zu machen (Arbeitserleichterung /Humanisierung der Arbeitswelt); der Automatisierungsgrad und Optimierungsgrad der Arbeitsprozesse soll erhöht werden, potentielle Fehlerquellen durch die Reduzierung manueller Tätigkeiten sollen vermieden werden und die Qualität des Endprodukts gesteigert werden. Die Lösung der Aufgabe ergibt sich aus den Patentansprüchen.The object of the invention is to simplify this removal and further transport and to make manual work unnecessary (simplification of work / humanization of the working world); The degree of automation and the degree of optimization of the work processes should be increased, potential sources of error by reducing manual activities should be avoided and the quality of the end product should be increased. The solution of the problem arises from the claims.

Bei der erfindungsgemäßen Ausgestaltung steht das Kupplungsteil der Transportvorrichtung zum leicht automatisierbaren Weitertransport des Gußstücks zur Verfügung, z. B. in einem Hängebahn- oder Roboterarmsystem, und der Speiserkörper mit seiner Transportvorrichtung wird erst im letzten Arbeitsgang vom Gußwerkstück getrennt. Auf diese Weise können alle vorangegangenen Arbeitsoperationen ab Übergabe vom Ausleeren automatisiert stattfinden, u. a. weiteres Kühlen, Strahlen, unmittelbare Sichtprüfungen oder solche mittels Kamera, Härteprüfungen und Endkontrolle. Ein Ausschleusen zur Vornahme kleinerer Arbeitsgänge und manuelle Eingriffe können entfallen.In the embodiment of the invention, the coupling part of the transport device for easily automatable onward transport of the casting is available, for. In a monorail or robotic arm system, and the The feeder body with its transport device is separated from the cast workpiece only in the last operation. In this way, all previous work operations can take place automatically from the transfer of emptying, including further cooling, blasting, direct visual inspections or such by means of camera, hardness tests and final inspection. A discharge to perform smaller operations and manual intervention may be omitted.

Die Erfindung wird nachfolgend durch die Beschreibung eines Ausführungsbeispiels anhand der beigegebenen Zeichnungen weiter erläutert. Es zeigt:

Fig. 1
eine Speiserkappe mit integrierter Transportvorrichtung im Längsschnitt;
Fig. 2
eine perspektivische Ansicht der Speiserkappe, teilweise aufgeschnitten;
Fig. 3
die Speiserkappe bei Benutzung als Blindspeiser.
The invention will be further explained by the description of an embodiment with reference to the accompanying drawings. It shows:
Fig. 1
a feeder cap with integrated transport device in longitudinal section;
Fig. 2
a perspective view of the feeder cap, partially cut away;
Fig. 3
the feeder cap when used as Blindspeiser.

Die Speiserkappe 1 hat einen mit ihr, z. B. durch Klebung, verbundenen Boden 2 und eine Decke 3 mit einer Öffnung, wie sie bei handelsüblichen Speiserkappen zur Entlüftung der Gußform während des Gießvorgangs dienen. Die Speiserkappe sitzt auf dem Hohlraum für das Gußstück 5 und umschließt den Raum für den Speiserkörper 4. Das Gußstück 5 ist umgeben vom Formstoff 7 und dieser vom einem Formrahmen 8 (oder z. B. auch einer Kokille). Eine Öffnung 9 im Boden 2 hat eine im Querschnitt zugespitzte Berandung, welche eine Kerbstelle an der Verbindung zwischen Gußstück 5 und Speiserkörper 4 zur Folge hat und die spätere Abtrennung im Putzvorgang begünstigt.The feeder cap 1 has a with her, z. B. by gluing, connected bottom 2 and a ceiling 3 with an opening, as used in commercial feeder caps for venting the mold during the casting process. The feeder cap sits on the cavity for the casting 5 and encloses the space for the feeder body 4. The casting 5 is surrounded by the molding material 7 and this of a mold frame 8 (or, for example, a mold). An opening 9 in the bottom 2 has a tapered cross-section boundary, which has a notch at the junction between casting 5 and feeder body 4 result and favors the subsequent separation in the cleaning process.

Zur Kappe 1 gehört eine Transportvorrichtung 10 bestehend aus zwei oder mehr Ankerarmen 11 und einem Kupplungsteil 12. Letzteres dient zur Zusammenwirkung mit einer Abtransportanlage, mit der das fertig abgegossene Gußteil weiter transportiert wird, z. B. zur weiteren Abkühlung und zu weiteren erforderlichen Bearbeitungsschritten im Herstellungsprozeß. Im dargestellten Beispiel ist das Kupplungsteil ein einfacher Haken; entsprechend den Gegebenheiten der Weitertransportanlage kann es die Form einer Öse, eines Bügels oder eines speziellen Formteils haben.The cap 1 includes a transport device 10 consisting of two or more armature arms 11 and a coupling part 12. The latter is used for cooperation with a removal system, with the finished cast-casting is transported further, z. B. for further cooling and other required processing steps in the manufacturing process. In the example shown, the coupling part is a simple hook; according to the circumstances of the onward transport system, it may take the form of an eyelet, a bow or a special molded part.

Die Ankerarme 11 tauchen in den Hohlraum für den Speiserkörper 4 ein und verlaufen im wesentlichen an oder in der Nähe der Innenfläche der Kappenwand und das Kupplungsteil 12 ragt durch die Öffnung der Kappendecke 3 nach außen.The armature arms 11 dip into the cavity for the feeder body 4 and extend substantially at or in the vicinity of the inner surface of the cap wall and the coupling member 12 protrudes through the opening of the cap cover 3 to the outside.

Die Ankerarme 11 haben Ausnehmungen 13, in die beim Gießvorgang das Gießmaterial eindringt, sodaß eine formschlüssige Verbindung zwischen Speiserkörper 4 und Transportvorrichtung 10 entsteht.The armature arms 11 have recesses 13, in which the casting material penetrates during the casting process, so that a positive connection between the feeder body 4 and transport device 10 is formed.

Die Anbringung der Transportvorrichtung in der Speiserkappe kann während deren Herstellung durch Formen, Pressen und Brennen des Keramikmaterials geschehen, z. B. durch Einschießen bei der Formgebung. Die Anbringung kann ebenso nach der Herstellung der Speicherkappe kraftschlüssig erfolgen, z. B. durch Verklemmen oder auch durch Verkleben. Dies muß an die bestehenden Formungs- und Herstellungsabläufe bei der Fertigung der Speiserkappen berücksichtigt und angepaßt werden.The attachment of the transport device in the feeder cap can be done during their manufacture by molding, pressing and firing of the ceramic material, for. B. by shooting in the shaping. The attachment can also be made non-positively after the production of the storage cap, z. B. by jamming or by gluing. This must be taken into account and adapted to the existing molding and manufacturing processes in the manufacture of the feeder caps.

Claims (4)

  1. Feeder cap (1), enclosing a space for a feeder body (4), for accommodation of the casting material intended to compensate for the volume shrinkage occurring on solidification of the cast part,
    characterized by an integrated transport device (10) consisting of anchor arms (11) dipping into the space for the feeder body (4) and a coupling part (12) projecting through the top of the cap (3) and cooperating with a further transportation system.
  2. Feeder cap (1) according to claim 1, characterized in that two or more anchor arms (11) evenly distributed around the circumference on or near the inner surface of the feeder cap wall dip into the feeder body (4).
  3. Feeder cap (1) according to claim 1 or 2, characterized in that the anchor arms (11) have recesses (13) to produce a positive-locking connection with the feeder body (4).
  4. Feeder cap (1) according to one or more of the preceding claims, characterized in that the transport device (10) is produced from a recyclable material.
EP11188170.2A 2010-11-13 2011-11-08 Feeder cap with integrated transport device Not-in-force EP2452764B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010051348A DE102010051348B3 (en) 2010-11-13 2010-11-13 Feeder cap for maintaining volume shrinkage of casting material occurring during solidification of casting through integrated transport device, comprises anchor arms plunging into feeder body, and coupling part

Publications (2)

Publication Number Publication Date
EP2452764A1 EP2452764A1 (en) 2012-05-16
EP2452764B1 true EP2452764B1 (en) 2014-07-23

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Application Number Title Priority Date Filing Date
EP11188170.2A Not-in-force EP2452764B1 (en) 2010-11-13 2011-11-08 Feeder cap with integrated transport device

Country Status (2)

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EP (1) EP2452764B1 (en)
DE (1) DE102010051348B3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014217438A1 (en) * 2014-09-01 2016-03-03 Volkswagen Aktiengesellschaft Casting mold for gravity casting or low-pressure casting of light metals and chill casting process executable therewith
DE102014217701A1 (en) 2014-09-04 2016-03-10 Huppert Engineering Gmbh & Co. Kg Process for producing metal casts

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333628A (en) * 1964-10-09 1967-08-01 Sterling Detroit Company Die casting apparatus
DE3134159A1 (en) * 1981-08-28 1983-03-10 Norddeutsche Affinerie, 2000 Hamburg Method for the transportation of solidified cast shapes and its application
SE9500260L (en) * 1994-02-11 1995-08-12 Fischer Georg Giessereianlagen Process and apparatus for cleaning of cast trees
GB0127505D0 (en) 2001-11-16 2002-01-09 Neill Michael O Machining spectacle lenses
DE10156571C1 (en) * 2001-11-20 2003-01-16 Gtp Schaefer Giestechnische Pr Feeder, used for inserting into a casting mold for casting metals, comprises a hat-like cap enclosing the outer wall of a feeder body forming an insulating gap and fixed against the body
EP1498197B1 (en) * 2003-07-18 2017-11-22 MAN Truck & Bus AG Casting process for reciprocating-piston combustion engine block

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Publication number Publication date
EP2452764A1 (en) 2012-05-16
DE102010051348B3 (en) 2011-11-03

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