Patent ID: 8069541
Filing Date: 2011-12-06
Classification: D04H

Abstract:
1. A device for needling of a nonwoven web, said device comprising: at least one needle bar, which has a needle board with a number of needles on its bottom; a movably mounted bar carrier for holding the needle bar; a vertical drive connected to the bar carrier for oscillating movement of the bar carrier in an up and down movement; a separate horizontal drive for oscillating movement of the bar carrier in a back and forth movement, the horizontal drive having at least one horizontal linkage connected to the bar carrier and two eccentric drives connected to the horizontal linkage, in which each of the eccentric drives is formed by a connecting rod and a crankshaft coupled to a connecting head of the connecting rod, wherein the connecting rods are coupled with connecting rod top ends in an oblique position to the horizontal linkage, the connecting rods forming an angle (α) with their center axes.