Danieli & C. Officine Meccaniche S.p.a.

Andrea Angelilli

Luca Crespan

A drawing machine () for drawing a tube (), defining a longitudinal axis (Y), comprising a first die () for carrying out the drawing of the tube by means of the use of a mandrel (); a device for varying the inclination () of the tube inlet into said first die (); a second die () for carrying out a skin pass operation on the tube, arranged downstream of said first die (); an in-line system for detecting the eccentricity of the tube; a data processing system () for processing signals originating from said detection system and sending input data to said device for varying the inclination () of the tube to vary the inclination of the tube so as to correct the eccentricity of the tube in-line; wherein said in-line system for detecting the eccentricity of the tube comprises a first detection head comprising at least three first transducers () arranged downstream of said first die ().

Drawing machine for drawing tubes

A method or classifying metal tubes in which the measuring of the eccentricity over the entire length of the tube is provided, and in which the classification occurs on the basis of the length of the tube portions which have eccentricity either higher or lower than one or more eccentricity thresholds.

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Pacentro, Italy

Andrea Angelilli