METHOD AND ARRANGEMENT FOR IDENTIFYING TOOLS IN A MOULDING MACHINE

摘要

When making moulds in a moulding machine with a mould chamber (1), in which moulds (not shown) are made by compacting mould sand between patterns (4, 6) carried by pattern plates (5, 7), the pattern plates (5, 7) are identified by means of interrogators (13) permanently secured to a squeeze plate (8) and a counter-pressure plate (10) respectively, and adapted to cooperate without relative movement with responders (14) in the pattern plates (5, 7). The interrogators (13) may be of the type transmitting an interrogating signal and a power field to the responders (14), the latter using power extracted from the power field to transmit an identification code back to the interrogator (13), said code being transferred to the controlling computer (not shown). By proceeding in this manner, the central computer will always "know" which patterns are operational, so as to ensure conformity with the production being run at any time.