EP0951956A1 - Procédé et dispositif pour coulée dans les moules en sable - Google Patents

Procédé et dispositif pour coulée dans les moules en sable Download PDF

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Publication number
EP0951956A1
EP0951956A1 EP98107607A EP98107607A EP0951956A1 EP 0951956 A1 EP0951956 A1 EP 0951956A1 EP 98107607 A EP98107607 A EP 98107607A EP 98107607 A EP98107607 A EP 98107607A EP 0951956 A1 EP0951956 A1 EP 0951956A1
Authority
EP
European Patent Office
Prior art keywords
mould
filling
closure member
moulds
duct
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
EP98107607A
Other languages
German (de)
English (en)
Other versions
EP0951956B1 (fr
Inventor
Finn Kruse Jakobsen
Torben Hansen
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.)
Georg Fischer Disa AS
Original Assignee
Georg Fischer Disa AS
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
Application filed by Georg Fischer Disa AS filed Critical Georg Fischer Disa AS
Priority to ES98107607T priority Critical patent/ES2150296T3/es
Priority to DE1998600190 priority patent/DE69800190T2/de
Priority to DK98107607T priority patent/DK0951956T3/da
Priority to EP19980107607 priority patent/EP0951956B1/fr
Priority to PCT/DK1999/000222 priority patent/WO1999055477A1/fr
Priority to AU31388/99A priority patent/AU3138899A/en
Publication of EP0951956A1 publication Critical patent/EP0951956A1/fr
Application granted granted Critical
Publication of EP0951956B1 publication Critical patent/EP0951956B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C11/00—Moulding machines characterised by the relative arrangement of the parts of same
    • B22C11/10—Moulding machines characterised by the relative arrangement of the parts of same with one or more flasks forming part of the machine, from which only the sand moulds made by compacting are removed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C19/00—Components or accessories for moulding machines

Definitions

  • the present invention relates to a method of casting articles in sand moulds, said method being of the kind set forth in the preamble of claim 1.
  • the present invention also relates to an apparatus for carrying out the method of the invention.
  • This apparatus is of the kind set forth in the preambles of claims 13-16, and, according to various aspects of the present invention, are characterized by the features set forth in the characterizing clauses of these claims 13-16, respectively.
  • Figure 1 shows a part of a sand mould 1, preferably one of a number of similar sand moulds forming a so-called mould string used in the mass production of cast metal objects, e.g. by using a combined mould-making and casting machine of the DISAMATIC® type.
  • the mould string extends and moves in a direction at right angles to the drawing.
  • the mould 1 comprises a filling duct in the form of a runner 2, the right-hand end of which is adapted to co-operate sealingly with a mouthpiece 3 on a metal pump 4 adapted to supply molten metal (not shown) under pressure to the runner 2, the latter leading into one or a number of mould cavities (not shown) formed in the mould 1.
  • the mould 1 comprises a closure member 5 extending from an outwardly open recess 6 in the side of the mould 1 facing the metal pump 4 to the runner 2, and can be pushed into the closing position shown in Figures 3 and 4 by a pusher arm 7 adapted to be reciprocated in a vertical or inclined direction by a suitable mechanism (not shown).
  • the right-hand end of the runner 2 is surrounded by a sealing element, in this exemplary embodiment in the form of a ring 8 adapted to make a liquid-tight seal of the connection between the mouthpiece 3 of the metal pump 4 and the runner 2, when the metal pump is brought into engagement as shown in Figure 2.
  • the sealing element can also have other shapes than that of a ring, provided that it can seal the connection between the mouthpiece 3 and the runner 2 outwardly.
  • the mould 1 has just arrived from the mould-making station, the latter comprising means, such as a core setter, for inserting the closure member 5, as well as the sealing ring 8, in the positions in Figure 1.
  • means such as a core setter
  • the actuating mechanism (not shown) for the pusher arm 7 is actuated to move the pusher arm into the position shown in Figure 3, thus pushing the closure member 5 into the closing position shown, thus closing the runner 2.
  • the pump may be withdrawn from the mould 1 to the position shown in Figure 4, so as to be in readiness for filling the next mould in succession.
  • the pusher arm 7 is withdrawn to its initial position shown in Figures 1 and 2, and the closure member 5 will remain in its closing position.
  • the pusher arm 7 is moved towards the right out of the recess 6 in order to allow this movement, being moved back into position as soon as the next mould is in the position shown for the mould 1.
  • the sealing ring 8 is preferably made of a material providing the best possible seal with the mouthpiece 3.
  • the sealing ring 8 not only provides a liquid-tight seal, but it also prevents direct contact between the mould 1 and the mouthpiece 3, thus avoiding contamination of the latter with particles of sand that can easily come loose from the mould. Further, because of its resilient properties, the sealing ring 8 is also capable of accommodating minor variations in the relative positions of the runner 2 and the mouthpiece 3, bearing in mind that the latter will have to co-operate with a great number of moulds passing through the filling station. Still further, because of its heat-insulating properties, the sealing ring 8 prevents molten metal from solidifying in contact with the mouthpiece 3 - otherwise, this could disturb the engagement of the latter with the sealing ring on the next mould.
  • Figures 5 and 6 illustrate two altered embodiments of the arrangement for closing the runner 2.
  • the plug-like closure member 5 shown in Figures 1-4 is replaced by a closure blade 9 adapted to be pushed into the closing position (not shown) by a pusher finger 10 attached to the pusher arm 7.
  • the closure blade 9 is inserted into the mould in the mould-making station, preferably by means of a core setter.
  • the mould 1 will arrive in the filling station without a closure member; this can be necessary if the mould-making station does not comprise a core setter or other equipment capable of inserting a closure member.
  • the closing function is provided by means of a closure blade 11 held temporarily by a gripper 12 secured to the pusher arm 7. With this arrangement, a new closure blade 11 will be inserted into the gripper 12, when the pusher arm 7 is in a position (not shown) away from the mould 1, such as by a suitable control robot (also not shown).
  • closure member 5 is made from compacted core sand and the closure blades 9 and 11 are made from the same material as is used for casting, it will not be necessary to take special care for removing them from the metal having solidified in the ingate system and to be returned for re-melting surplus metal after extraction and liberation of the castings.
  • the closure member 5 is replaced by a water-cooled closure member, preferably attached to a movable member externally of the mould 1, such as one similar to the pusher arm 7.
  • the water-cooled closure member is pulled out and away from the runner 2 as soon as the metal in the latter has solidified to an extent sufficient to prevent the metal closer to the mould cavity from flowing out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP19980107607 1998-04-27 1998-04-27 Procédé et dispositif pour coulée dans les moules en sable Expired - Lifetime EP0951956B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES98107607T ES2150296T3 (es) 1998-04-27 1998-04-27 Metodo y aparato para articulos de fundicion en moldes de arena.
DE1998600190 DE69800190T2 (de) 1998-04-27 1998-04-27 Verfahren und Vorrichtung zum Giessen in Sandformen
DK98107607T DK0951956T3 (da) 1998-04-27 1998-04-27 Fremgangsmåde og apparatur til støbning af emner i sandforme
EP19980107607 EP0951956B1 (fr) 1998-04-27 1998-04-27 Procédé et dispositif pour coulée dans les moules en sable
PCT/DK1999/000222 WO1999055477A1 (fr) 1998-04-27 1999-04-21 Procede et appareil de moulage dans des moules de sable
AU31388/99A AU3138899A (en) 1998-04-27 1999-04-21 Method and apparatus for casting articles in sand moulds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19980107607 EP0951956B1 (fr) 1998-04-27 1998-04-27 Procédé et dispositif pour coulée dans les moules en sable

Publications (2)

Publication Number Publication Date
EP0951956A1 true EP0951956A1 (fr) 1999-10-27
EP0951956B1 EP0951956B1 (fr) 2000-06-28

Family

ID=8231829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980107607 Expired - Lifetime EP0951956B1 (fr) 1998-04-27 1998-04-27 Procédé et dispositif pour coulée dans les moules en sable

Country Status (6)

Country Link
EP (1) EP0951956B1 (fr)
AU (1) AU3138899A (fr)
DE (1) DE69800190T2 (fr)
DK (1) DK0951956T3 (fr)
ES (1) ES2150296T3 (fr)
WO (1) WO1999055477A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001028712A1 (fr) * 1999-10-15 2001-04-26 Loramendi, S.A. Procede de coulee de metaux dans un moule de sable vert et dispositif d'obturation du canal de coulee

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733714A (en) * 1986-02-21 1988-03-29 Cosworth Research & Development Limited Method of and apparatus for casting
WO1993011892A2 (fr) * 1991-12-07 1993-06-24 Baxi Partnership Limited Coulage d'alliages de metaux legers
WO1994025200A1 (fr) * 1993-04-29 1994-11-10 Baxi Partnership Limited Dispositif de fermeture hermetique pour l'orifice d'entree d'un moule a sable
WO1995032826A1 (fr) * 1994-05-27 1995-12-07 Georg Fischer Disa A/S Methodes pour fermer l'entree d'un moule apres une coulee, faite sans implication de la force de gravite, d'un alliage non ferreux dans un moule au sable vert d'une installation a moules multiples
US5636680A (en) * 1994-06-29 1997-06-10 Dansk Industri Syndikat A/S Method and device for terminating the casting process after non-gravity casting of moulds, especially green-sand moulds, particularly with easily oxidable metals or metal alloys

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295808A1 (fr) * 1974-12-24 1976-07-23 Pont A Mousson Procede et installation de coulee sous basse pression en moule en sable
CH595914A5 (en) * 1975-11-17 1978-02-28 Fischer Ag Georg Mould contg. a casting pipe
CH616609A5 (fr) * 1977-03-23 1980-04-15 Fischer Ag Georg
SU1060304A1 (ru) * 1982-07-09 1983-12-15 Ордена Ленина,Ордена Трудового Красного Знамени Завод Транспортного Машиностроения Им.В.И.Ленина Металлопровод дл лить под низким давлением
JPH06234057A (ja) * 1993-02-10 1994-08-23 Aisin Takaoka Ltd 吸引鋳造装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733714A (en) * 1986-02-21 1988-03-29 Cosworth Research & Development Limited Method of and apparatus for casting
WO1993011892A2 (fr) * 1991-12-07 1993-06-24 Baxi Partnership Limited Coulage d'alliages de metaux legers
WO1994025200A1 (fr) * 1993-04-29 1994-11-10 Baxi Partnership Limited Dispositif de fermeture hermetique pour l'orifice d'entree d'un moule a sable
WO1995032826A1 (fr) * 1994-05-27 1995-12-07 Georg Fischer Disa A/S Methodes pour fermer l'entree d'un moule apres une coulee, faite sans implication de la force de gravite, d'un alliage non ferreux dans un moule au sable vert d'une installation a moules multiples
US5636680A (en) * 1994-06-29 1997-06-10 Dansk Industri Syndikat A/S Method and device for terminating the casting process after non-gravity casting of moulds, especially green-sand moulds, particularly with easily oxidable metals or metal alloys

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001028712A1 (fr) * 1999-10-15 2001-04-26 Loramendi, S.A. Procede de coulee de metaux dans un moule de sable vert et dispositif d'obturation du canal de coulee
US6659163B2 (en) 1999-10-15 2003-12-09 Loramendi, S.A. Method for metal casting in green-sand molds and casting gutter sealing device

Also Published As

Publication number Publication date
AU3138899A (en) 1999-11-16
WO1999055477A1 (fr) 1999-11-04
DK0951956T3 (da) 2000-11-06
ES2150296T3 (es) 2000-11-16
EP0951956B1 (fr) 2000-06-28
DE69800190T2 (de) 2000-11-23
DE69800190D1 (de) 2000-08-03

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