Patent ID: 6249935
Filing Date: 2001-06-26
Classification: D01G,G01N

Abstract:
A fiber processing machine comprising(a) a rotatably supported opening roll having a clothing arranged circumferentially thereon;(b) a withdrawing roll adjoining said opening roll and being supported for rotation for forwarding the fiber material to said opening roll;(c) an optical sensor system to detect foreign material carried on said opening roll along with said fiber material;(d) an air stream generating device to direct an air blast to said clothing;(e) a control-and-regulating device; said optical sensor system and said air stream generating device being connected to said control-and-regulating device for operating said air stream generating device upon detecting foreign material by said optical sensor system to remove and carry away the foreign material from said clothing of said opening roll by an air stream; and(f) means defining a collecting chamber for receiving said air stream carrying the foreign material.