Abstract: An automatic matchplate molding machine, used to form sand cope and drag molds, includes a basin former to create a pouring basin in the cope mold. The basin former includes a two-piece liner, one of the pieces being a relatively short and inexpensive plastic sleeve which may be replaced at a relatively low cost when wear occurs. Air passages in the liner channel air into the center of the liner, creating a swirling air current, thereby blowing loose sand out of the liner.

Abstract: A basin former on a squeeze plate coacts with a sprue former on a pattern plate to form a pouring basin and a sprue in a sand mold. Sand which enters the basin former during formation of the pouring basin is ejected upwardly therefrom by pressurized air which is introduced into the basin former through an opening in the side of a plastic liner located in the basin former. The squeeze plate is modular in nature in that the basin former may be attached to the squeeze plate at any selected one of several locations without need of disconnecting and re-connecting the source of pressurized air when the position of the basin former is changed.