Plant, useful for manufacturing sand cores for a metal casting, comprises a core tool that comprises a core mold fillable with a sand-containing molding material and a feed device, by which the core mold is more supplied to gas

摘要

The plant comprises a core tool (12), which comprises a core mold fillable with a sand-containing molding material and a feed device (28), by which the core mold is more supplied to gas serving for curing the molding material. The core tool comprises a closure unit, by which charging holes of the core tool are lockable and the molding material is more supplied into core mold. The closure unit comprises a plate with apertures corresponding to the charging holes. The plant comprises a core tool (12), which comprises a core mold fillable with a sand-containing molding material and a feed device (28), by which the core mold is more supplied to gas serving for curing the molding material. The core tool comprises a closure unit, by which charging holes of the core tool are lockable and the molding material is more supplied into core mold. The closure unit comprises a plate with apertures corresponding to the charging holes, where the plate is positioned between a filling position, in which the apertures are moveably aligned opposite to the charging holes, and a closing position, in which the charging holes are closed from the plate. The core tool further comprises: a discharge equipment, by which the gas, is removable from the core mold, serving for curing the molding material; filling stations (14); and demolding stations. The core tool comprises an upper tool part comprising the closure unit, and a lower tool part comprising the core mold. The upper and lower tool parts are fastenable by an electromagnetic actuatable locking device adjacent to one another. The core tool is attached to a conveying device (18) of the plant, by which the core tool is transportable to a filling station of the plant at which the core mold is fillable with the molding material, and to a demolding station of the plant at which the cured molding material is releasable from the core mold. A number of filling stations and a number of demolding stations correspond to half of the number of core tools. The conveying device is designed as a round conveying device, by which the core tools are more supplied on a circular conveying path of the respective filling stations and the demolding stations. An independent claim is included for a method for manufacturing a sand core for the metal casting in a manufacturing plant.