TWI816107B

This sand mold shaping device (10) comprises: a blow head (48) that retains wet sand; and a blow plate unit (56) that is provided between the blow head and a forming mold (20). The blow plate unit comprises: a sand introduction path (86) through which passes the wet sand blown into the forming mold from the blow head by compressed air supplied by the blow head; and at least one compressed air introduction path (P1, P2) that blows compressed air towards the wet sand blown into the forming mold through the sand introduction path. An acute angle is formed between a blow-in direction (X) for the wet sand into the forming mold from the blow head via the sand introduction path, and a blow-in direction (Y1, Y2) for the compressed air blown towards the wet sand via the at least one compressed air introduction path .