Assembly of moldings made of removable material for producing turbine blades

An assembly for producing moldings made of removable material for turbine blades, comprising an injection mould for said removable material, in which a first core element (22) and a second core element (21) can be mounted in a predetermined molding position, said first core element (22) and said second core element (21) extending in a first direction (Z), said first core element (22) and said second core element (21) extending in a second direction (Z), and said second core element (21) extending in a third direction (Z). The invention relates to a mould for moulding a blade, comprising:-a first face (20) for moulding a pressure side of the blade and-a second face for moulding a suction side of the blade and arranged to face the first face in a second direction (Y) perpendicular to the first direction (Z),-retaining means (P4, P5) for retaining the first face in the second direction (Y) perpendicular to the first direction (Z), at least a first retaining member (P4, P5) extending in the second direction from