Abstract: An automatic system for inspecting a cutting edge of a ring shaped blade. An example system includes one supporting and moving group rotatably mounted around one rotation axis and configured to support the ring shaped blade between at least one parking position and at least one reading position, one first emitting unit configured to emit at least one first inspection light beam, one second emitting unit configured to emit at least one second inspection light beam, one first detecting unit configured to detect a first light beam reflected from the ring shaped blade, and one second detecting unit configured to detect a second light beam reflected from the ring shaped blade, and one control and processing unit configured to receive an input and process at least one detection signal and output at least one quality index of the cutting edge of the ring shaped blade.

Abstract: Gripping group (1) for at least one tool (2) comprising at least one magnetizable material, said tool (2) being configured to be supported by at least one projecting shaft (3) of one storage and having one respective gripping face (21), facing one free end (32) of said projecting shaft (3), the gripping face delimiting at least one plurality of regions (211, 212, 203, 214), the gripping group (1) comprising: at least one gripping head (4) including: —at least one support element (40), having a first face (41) configured to be directed toward said gripping face (21); —at least two electromagnets (42; 421, 422, 423, 424, 425), supported by said at least one support element (40), at said first face (41) thereof, and placed thereon in such a way as to delimit at least one gripping plane (5) at exposed ends thereof configured to generate one respective magnetic field, wherein when said at least one gripping plane (5) is directed toward the gripping face (21) each one of the least two electromagnets (42; 421, 422,

Abstract: Automatic system (1) for inspecting one cutting edge (2, 2?) of a ring shaped blade (3), wherein the ring shaped blade (3) is configured to be used in a plant for cutting one sheet of metallic material and extends around a central symmetry axis (y-y), the system (1) comprising: one supporting and moving group (4) rotatably mounted around one rotation axis (x-x) and configured to support the ring shaped blade (3) between at least one parking position and at least one reading position and for putting it in rotation around the rotation axis (x-x), wherein when the ring shaped blade (3) is supported in the at least one reading position, the rotation axis (x-x) is coincident with the central symmetry axis (y-y) of the ring shaped blade (3); one first emitting group (7), configured to emit at least one first inspection light beam (71) toward the supporting and moving group (4) and toward the cutting edge (2, 2?) of the ring shaped blade (3), when the blade is supported by the supporting and moving group (4); one se