Device and method for unwinding and inspection of metallic strip coils

A device for unwinding a coil of a metal strip comprising:

• (a) a bogie and a guiding system wherein the bogie is translatable back and forth along the guiding system;
• (b) a blocking system which is arranged on said bogie and which contains a first shaped element and a second shaped element;
• (c) an actuating system for modifying the distance between said first and second shaped elements for defining an intercepting position of a strip end between said two shaped elements when spaced and a gripping position of said strip end by said two shaped elements when close together;
• and
• (d) an element for detaching said strip end from the coil provided on the first shaped element,
• wherein said element for detaching the strip end from the coil is positioned against the coil when the first shaped element contacts the coil, and
• wherein said first shaped element is a roller.