Apparatus for needling a nonwoven web with a rocking needle board

摘要

The described apparatus for needling a nonwoven web comprises at least one needle beam for carrying a needle board, a rocker for guiding the needle beam and a slider-crank mechanism for actuating the needle beam. To effect a mass compensation it is proposed that two needle beams are arranged one behind the other in the direction of travel of the nonwoven web and are guided each by a rocker and actuated each by a slider-crank mechanism and that the two slider-crank mechanisms comprise parallel crankshafts or eccentric shafts, which are rotated in mutually opposite senses.