EP1326726B1 - Verfahren und vorrichtung zum schrittweise vorrücken von kokillen in einer giessanlage - Google Patents

Verfahren und vorrichtung zum schrittweise vorrücken von kokillen in einer giessanlage Download PDF

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Publication number
EP1326726B1
EP1326726B1 EP00962251A EP00962251A EP1326726B1 EP 1326726 B1 EP1326726 B1 EP 1326726B1 EP 00962251 A EP00962251 A EP 00962251A EP 00962251 A EP00962251 A EP 00962251A EP 1326726 B1 EP1326726 B1 EP 1326726B1
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EP
European Patent Office
Prior art keywords
mould
string
moulds
pouring
station
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 - Lifetime
Application number
EP00962251A
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English (en)
French (fr)
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EP1326726A1 (de
Inventor
Ole Anders Jacobsen
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.)
Disa Industries AS
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Disa Industries AS
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Filing date
Publication date
Application filed by Disa Industries AS filed Critical Disa Industries AS
Publication of EP1326726A1 publication Critical patent/EP1326726A1/de
Application granted granted Critical
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D47/00—Casting plants
    • B22D47/02—Casting plants for both moulding and casting
    • 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
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D33/00—Equipment for handling moulds
    • B22D33/005—Transporting flaskless moulds

Definitions

  • the present invention relates to a method and an apparatus for stepwise advancing moulds in a mould-string foundry plant of the kind set forth in the preamble of claims 1 and 4, respectively.
  • mould-string foundry plants of this kind it is known to produce the moulds one at a time in the mould-making station and deliver the produced moulds to a precision conveyor, advancing the moulds stepwise to a pouring station, in closely juxtaposed position forming a mould string with casting cavities at the mainly vertical parting surfaces between successive moulds.
  • Each step in the stepwise advancement of the mould string corresponds to the length occupied by one mould and the mould cavities are filled with liquid metal one at a time in the pouring station.
  • the advancing of the moulds is partly performed by the mould-making station pushing a produced mould against the mould string, partly by advancing the precision conveyor, on which the mould string is positioned.
  • the time available for the pouring is the standstill period for the stepwise advancement of the mould string, said standstill period being closely related to the production time of the mould-making machine.
  • a foundry plant of this kind is e.g. known from EP-0,817,690.
  • the stepwise advancing of the moulds is performed in steps corresponding to the distance occupied by two moulds and the mould-making machine is allowed to produce two consecutive moulds, i.e. two cycles for the mould-making machine, before the mould string is moved again, thereby substantially increasing the time for pouring relative to the time available when proceeding in the traditional way.
  • Preferred embodiments of the method and apparatus e.g. comprising insertion of cores in the mould cavities, are revealed in the sub-ordinate claims.
  • the mould-string foundry plant shown in Figure 1 comprises a mould-making station A producing moulds one at a time for delivery to a precision conveyor C, advancing the moulds stepwise to a pouring station B, in which metal is poured 7 into the casting cavities formed at the mainly vertical parting surfaces between successive moulds. After pouring in the pouring station B, the mould string F is advanced stepwise to the extraction station E, in which the produced castings are taken out of the moulds.
  • the mould-string foundry plant can further comprise a core-insertion station D for inserting cores into the mould cavities before closing thereof.
  • the pouring station B is provided with two pouring units 7 in order to be able to pour metal into two mould cavities simultaneously.
  • the sequence of operations in the mould-string foundry plant shown in Figure 1 is shown diagrammatically in Figure 2.
  • the mould-making machine is shown to the right diagrammatically comprising a mould-forming chamber 4 closed to the right by a squeeze plate 1 and to the left by a swingable squeeze plate 2 and comprising means 3 for introducing mould sand into the mould-forming chamber 4.
  • the sequence of operations in Figure 2 is related to the movements of the squeeze plates 1, 2, said movements being illustrated in Figure 3 indicating the speed of the squeeze plates as a function of time.
  • the different operations of the mould-making machine are numbered op. 1-6.
  • the mould string F is stationary during op. 1 - op. 4a and metal can be poured into the mould cavities in the pouring station B.
  • the mould-forming cavity 4 is filled with mould sand from the sand hopper 3.
  • the sand in the mould-forming cavity 4 is compacted by moving the squeeze plate 1 and the swingable squeeze plate 2 towards one another.
  • the swingable squeeze plate 2 is moved to the left and swung out of the way, thereby opening the mould-forming cavity 4 ready for delivery of the produced mould, which is performed during operation op.
  • the mould string F is moved one step further, over a distance corresponding to the length occupied by one mould in the mould string, whereafter pouring can be initiated in the pouring station B for the next two mould cavities to be poured.
  • the operations op. 1 - op. 3 are performed as described above.
  • Operation op. 4 is performed by moving the squeeze plate 1 at a relatively high speed until the produced mould 5 comes to the mould close-up position illustrated. The mould close-up is performed without moving the mould string F, due to the fact that room has been provided for the produced mould by the movement of the mould string F during operation op. 6, as described above.
  • the operations op. 5 and op. 6 are performed and the sequence is continued from operation op. 1 as described initially. These operations are illustrated in Figure 2 down to operation op. 4a, where the pouring in the pouring station B is stopped.
  • the time available for pouring metal into the mould cavities in the pouring station B is extended compared to the traditional method, in which the mould string F is moved one step forward during each delivery of a newly produced mould in operation op. 4b.
  • the cycle time for the operations op. 1, op. 2, op. 3, op. 4, op. 5, and op. 6 is reduced compared to the traditional operations op. 1, op. 2, op. 3, op. 4a, op. 4b, op. 5, and op. 6.
  • Figure 4 corresponds essentially to Figure 2.
  • the time necessary for inserting the core may necessitate a certain delay between operations op. 2 and op. 3, as illustrated in Figure 5.
  • the movements of the mould string can be performed as illustrated in Figure 6, which essentially corresponds to Figure 4 apart from the fact that the mould string F is moved the second step forward during operation op. 6, whereby the pouring in the pouring station B can be initiated immediately thereafter, and the core is inserted into the last produced mould during operation op. 2, as illustrated in Figure 6, thereby increasing the time available for pouring metal into the mould cavities.

Landscapes

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

Claims (5)

  1. Verfahren zum schrittweisen Vorschub von Formen (5) in einer Formenstrang-Gießanlage, wobei die Anlage eine Formenherstellstation (A), eine Gießstation (B) und eine Fördereinrichtung (C) zum schrittweisen Vorschub der Formen (5) umfasst, wobei das Verfahren die Schritte umfasst, dass:
    a) Formen (5) einzeln in der Formherstellstation (A) für die Lieferung an die Fördereinrichtung (C) hergestellt werden,
    b) die hergestellten Formen (5) auf der Fördereinrichtung (C) durch die Gießstation (B) in eng benachbarter Stellung schrittweise vorgeschoben werden, wobei ein Formenstrang (F) mit Gusshohlräumen an hauptsächlich vertikalen Trennflächen zwischen aufeinanderfolgenden Formen (5) gebildet wird,
    c) Metall (7) in die Gusshohlräume in der Gießstation (B) gegossen wird, während der Formenstrang (F) stationär gehalten wird,
    gekennzeichnet,
    dass Schritt a) ferner umfasst, dass getrennt eine erste Form (5) ohne Bewegung des Formenstranges (F) erzeugt und ausgetragen wird und eine zweite Form (5) erzeugt und ausgetragen wird und die erste und zweite Form (5) gleichzeitig an die Fördereinrichtung (C) geliefert werden, und Schritt b) ferner umfasst, dass der Formenstrang (F) über eine Distanz, die der Länge entspricht, die durch zwei Formen (5) in dem Formenstrang (F) belegt ist, vorgeschoben wird, wenn die erste und zweite Form (5) an die Fördereinrichtung (C) geliefert werden, und der Formenstrang (F) bis zur Lieferung der nächsten beiden Formen (5) von der Formenherstellstation (A) stationär gehalten wird, und
    Schritt c) ferner umfasst, das Metall (7) gleichzeitig in zwei Gusshohlräume gegossen wird, während der Formenstrang (F) stationär gehalten wird.
  2. Verfahren nach Anspruch 1,
    wobei Kerne in die Formhohlräume vor einem Schließen der Formen (5) eingesetzt (D) werden,
    dadurch gekennzeichnet, dass Schritt a) umfasst, dass die Kerne in die erste hergestellte Form (5) während der Herstellung der zweiten Form (5) eingesetzt (D) werden und die Kerne in die zweite Form (5) nach Bewegung des Formenstranges (F) über eine Distanz, die einer Länge entspricht, die durch eine Form (5) in dem Formenstrang (F) belegt ist, eingesetzt (D) werden, wobei anschließend der Formenstrang (F) einen weiteren Schritt über eine Distanz bewegt wird, die der Länge entspricht, die durch eine Form (5) in dem Formenstrang (F) belegt ist, wodurch ein Gießen (7) von zwei Formen (5) bei Schritt c) eingeleitet werden kann.
  3. Verfahren nach Anspruch 1,
    wobei Kerne in die Formhohlräume vor einem Schließen der Formen (5) eingesetzt (D) werden,
    dadurch gekennzeichnet, dass Schritt a) umfasst, dass die Kerne in die erste hergestellte Form (5) während der Herstellung der zweiten Form (5) eingesetzt (D) werden und nach einer Lieferung der zweiten Form (5) der Formenstrang (F) über eine Distanz bewegt wird, die der Länge entspricht, die durch zwei Formen (5) belegt ist, wobei ein Gießen (7) der beiden Formen (5) gemäß Schritt c) vor einem Einsetzen (D) der Kerne in die zweite Form (5) eingeleitet werden kann.
  4. Formenstrang-Gießanlage zur Ausführung des Verfahrens nach Anspruch 1,
    wobei die Anlage eine Formenherstellstation (A), eine Präzisionsfördereinrichtung (C), die so ausgebildet ist, dass sie mit der letzten hergestellten Form (5) in Eingriff treten und diese bewegen kann, wenn sie von der Formherstellstation (A) geliefert wird, und eine Gießstation (B) umfasst,
    dadurch gekennzeichnet, dass die Formherstellstation (A) eine Form (5) einzeln herstellt und die Präzisionsfördereinrichtung (C) so ausgebildet ist, dass der Formenstrang (F) jedes Mal, wenn zwei Formen (5) von der Formenherstellstation (A) geliefert worden sind, schrittweise über eine Distanz bewegt wird, die der Länge entspricht, die durch zwei Formen (5) in dem Formenstrang (F) belegt ist, und die Gießstation (B) so ausgebildet ist, dass sie Metall (7) in zwei Formhohlräume gleichzeitig gießt.
  5. Formenstrang-Gießanlage nach Anspruch 4,
    ferner mit einem Kerneinlegmechanismus (D),
    dadurch gekennzeichnet, dass der Kerneinlegmechanismus (D) so aufgebaut ist, dass er Kerne in die Formen (5) in zwei unterschiedlichen Positionen einlegen kann, die um eine Distanz voneinander entsprechend der Länge einer Form angeordnet sind, d.h. der Position der ersten Form (5), wenn sie von der Formherstellstation geliefert wird, und der Position der zweiten Form (5) nach dem Vorschub des Formenstranges (F) über eine Distanz, die der Länge entspricht, die durch zwei Formen (5) in dem Formenstrang (F) belegt ist.
EP00962251A 2000-09-27 2000-09-27 Verfahren und vorrichtung zum schrittweise vorrücken von kokillen in einer giessanlage Expired - Lifetime EP1326726B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DK2000/000528 WO2002026427A1 (en) 2000-09-27 2000-09-27 Method and apparatus for setpwise advancing moulds in a mould-string foundry plant

Publications (2)

Publication Number Publication Date
EP1326726A1 EP1326726A1 (de) 2003-07-16
EP1326726B1 true EP1326726B1 (de) 2004-06-02

Family

ID=8149405

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EP00962251A Expired - Lifetime EP1326726B1 (de) 2000-09-27 2000-09-27 Verfahren und vorrichtung zum schrittweise vorrücken von kokillen in einer giessanlage

Country Status (7)

Country Link
EP (1) EP1326726B1 (de)
JP (1) JP3804951B2 (de)
CN (1) CN1454128A (de)
AU (1) AU2000274045A1 (de)
DE (1) DE60011307T2 (de)
ES (1) ES2222232T3 (de)
WO (1) WO2002026427A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015018786A3 (en) * 2013-08-06 2015-07-16 Loramendi, S. Coop. Method and system for producing sand moulds
WO2016166578A3 (en) * 2015-04-17 2017-07-27 Disa Industries A/S Method and system for multi-indexing moulds

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005056214A1 (en) * 2003-12-11 2005-06-23 Disa Industries A/S Method and apparatus for pouring several moulds in a mould-string plant in one pouring operation
CN100431740C (zh) * 2006-11-24 2008-11-12 温永利 多功能铸铁设备及铸铁工艺
WO2016166579A1 (en) * 2015-04-17 2016-10-20 Disa Industries A/S Method and system for indexing moulds
DE102016201824A1 (de) 2016-02-08 2017-08-10 Volkswagen Aktiengesellschaft Formenstrang-Gießanlage mit 3D-Drucker und Verfahren zur Serienfertigung von Gussteilen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442882A (en) * 1980-09-06 1984-04-17 Michael Achinger Machine for producing flaskless molds
DE69228998T2 (de) * 1991-12-07 1999-12-02 Alloy Techn Ltd Giessen von leichtmetall-legierungen
DK126694A (da) * 1994-11-01 1996-05-02 Dansk Ind Syndikat Fremgangsmåde ved dobbeltsidig presning af formboller i et strengformeanlæg
DK34595A (da) * 1995-03-30 1996-10-01 Dansk Ind Syndikat Fremgangsmåde ved fremføring af støbeforme og et anlæg til brug ved udøvelse af fremgangsmåden

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015018786A3 (en) * 2013-08-06 2015-07-16 Loramendi, S. Coop. Method and system for producing sand moulds
WO2016166578A3 (en) * 2015-04-17 2017-07-27 Disa Industries A/S Method and system for multi-indexing moulds

Also Published As

Publication number Publication date
DE60011307T2 (de) 2004-10-28
JP2004509769A (ja) 2004-04-02
EP1326726A1 (de) 2003-07-16
WO2002026427A1 (en) 2002-04-04
DE60011307D1 (de) 2004-07-08
JP3804951B2 (ja) 2006-08-02
CN1454128A (zh) 2003-11-05
ES2222232T3 (es) 2005-02-01
AU2000274045A1 (en) 2002-04-08

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