Method and system to manufacture ceramic articles

A method to manufacture ceramic articles (T), the method comprises the following steps:

• a compaction step, during which a powder material (CP) comprising ceramic powder is compacted, at a compaction station, so as to obtain a layer of compacted powder (KP);
• a conveying step, during which said powder material (CP) is conveyed by a conveyor assembly along a given path (P) from an input station to the compaction station and the layer of compacted powder (KP) is conveyed, along said given path (P), from the compaction station to an output station;
• a feeding step, which is at least partially simultaneous with said conveying step and during which said powder material (CP) is fed onto said conveyor assembly by means of a feeding assembly so as to generate a layer(S) of said powder material (CP);
• said conveyor assembly being configured to convey said layer(S) of said powder material (CP) from the input station in a moving direction (A);
• said feeding assembly comprising a plurality of digital feeding devices, each comprising, in turn, at least one container, which is suited to contain a respective type of powder material (CP) and has a respective output mouth, whose longitudinal extension is transverse to the moving direction (A), a plurality of distribution elements, which are arranged in succession along the output mouth, and a plurality of actuators, each configured to move a respective distribution element between a first position and a second position, in which the powder material is allowed to pass through the area of the output mouth where the respective distribution element is arranged;
• said method further comprises:
• a detection step, which is at least partially subsequent to said feeding step and during which a detection unit, which is arranged upstream of the compaction device along said given path (P) detects the height of said powder material (CP) in the conveyor assembly;
• and
• a height correction step, which is at least partially subsequent to said detection step and prior to said compaction step, during which a height correction unit arranged at a correction station, upstream of said detection unit and of said compaction device along said given path (P) changes the height of said layer(S) of powder material (CP) crosswise to said moving direction (A), depending on the data detected during said detection step so as to make the height of said layer(S) of material more constant crosswise to said moving direction (A).