(19)
(11) EP 1 321 209 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.07.2004 Bulletin 2004/28

(43) Date of publication A2:
25.06.2003 Bulletin 2003/26

(21) Application number: 02028039.2

(22) Date of filing: 16.12.2002
(51) International Patent Classification (IPC)7: B22D 29/00
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

(30) Priority: 18.12.2001 IT TO20011180

(71) Applicant: Global Foundry Systems S.r.l.
10148 Torino (IT)

(72) Inventor:
  • Zavattaro, Giuseppe
    I-10148 Torino (IT)

(74) Representative: Robba, Pierpaolo et al
INTERPATENT S.R.L., Via Caboto No.35
10129 Torino
10129 Torino (IT)

   


(54) A device for removing cores from foundry castings


(57) The device (1) according to the invention allows to remove the cores from the foundry castings (11) by means of a hammering process and successive vibration. The particular arrangement of the vibrators (41), characterised by the fact that the plane (V) specified by the symmetry axes of said vibrators (41) forms with the median planes (L, T) of the chassis (5), to which the foundry casting (11) is fixed, angles (α, β) not null and different from 90°, guarantees that the vibratory movement is effectively transmitted to the foundry castings (11). The device (1) is further characterised by the presence of an additional blocking system (50) allowing to block the vibratory movement of the foundry casting (11) when this movement protracts after that the vibrators (41) have stopped.






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