EP 0128974 B1 19861015 - MOULDING MACHINE FOR PRODUCING MOULDS OR CORES FROM MOULDING SAND
Title (en)
MOULDING MACHINE FOR PRODUCING MOULDS OR CORES FROM MOULDING SAND
Publication
Application
Priority
EP 83200879 A 19830616
Abstract (en)
[origin: EP0128974A1] 1. A moulding machine for producing casting moulds or casting cores from moulding sand by vacuum injection, the machine comprising : a moulding box or core box (1) having a baseplate (4) and a top plate (12) and formed with slit-like nozzles (3, 5, 13) ; clamping jaws (8) engaging the moulding or core box (1) laterally ; and a lifting table (7) pressing the moulding or core box (1) into engagement with a sand filler (10 or 44), the sand filler (10 or 44) having an injection head (11) or a fluidizing head (46) and a gassing plate (35), the latter being adapted to be pushed over the moulding or core box (1), the plate (35) being connectable by way of valves (39, 40) to a supply of carrier gas or to scavenging air, the slit-like nozzles (3, 5, 13) being connected by way of a suction line (24) to a vacuum device, characterised in that individual auxiliary suction lines connected to the slit-like nozzles (3, 5, 13) extend to a tubular main (23) connected, by way of the suction line (24) and of an associated valve (25) and also by way of a parallel auxiliary suction line (28, 31) having a control valve (32) and an absorber (30), to a vacuum tank (26).
IPC 1-7
IPC 8 full level
B22C 9/12 (2006.01); B22C 15/23 (2006.01)
CPC (source: EP)
B22C 9/123 (2013.01); B22C 15/23 (2013.01)
Citation (examination)
EP 0036434 A1 19810930 - BUEHLER EUGEN
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0128974 A1 19841227; EP 0128974 B1 19861015; AT E22825 T1 19861115; DE 3366853 D1 19861120
DOCDB simple family (application)
EP 83200879 A 19830616; AT 83200879 T 19830616; DE 3366853 T 19830616