Improved device for detecting extraneous conducting bodies in fibre bales processed in bale opening machines

摘要

An improved device for detecting extraneous conducting bodies in fibre bales processed in bale opening machines, comprising longitudinal shoes (16) between which rotating beaters (4) for withdrawing the fibres and grooved conveying wheels (17) are inserted, and conductance sensors connected into an electrical circuit (29) having one pole (32) connected to the shoes and the other pole (33) connected to said rotating members operating on the fibres and inserted in the gaps between the shoes. <MATH>