Sand-leakage prevention sand shooting nozzle for iron-mould coated sand shooting board

The utility model discloses a coated sand tool for iron-mould coated sand casting, and particularly relates to a sand-leakage prevention sand shooting nozzle for an iron-mould coated sand shooting board, which is arranged on the sand shooting board, and is characterized by comprising a sand shooting nozzle, a spring, a spring guide rod, a spring press plate and a fixing sleeve, wherein the spring press plate is fixed on the sand shooting board by the fixing sleeve and screws positioned in the fixing sleeve; one end of the spring guide rod is fixed with the sand shooting nozzle, and the other end of the spring guide rod passes through the spring press plate and is matched with the spring press plate in a sliding way; the spring guide rod is sheathed with the spring; one end of the spring is contacted with the spring press plate, and the other end of the spring is contacted with the sand shooting nozzle; the sand shooting nozzle is arranged on the sand shooting board in a sliding way; and the sand shooting nozz