Machine for producing non-woven nettings

Claim 1

In a machine for producing a non-woven netting comprising crossing warp and transverse threads connected together at their points of crossover, said machine including a stationary frame having support means of at least substantially circular cross section for supporting a plurality of parallel warp threads in the form of a cylindrical thread layer, means for jointly advancing said warp threads in their longitudinal direction, at least one rotary thread guide for laying a transverse thread in a helical configuration around said layer of warp threads to form a hose-like web, drive means for rotating said thread guide, means for longitudinally slitting said hose-like web into at least two individual nettings, at least two rotatably supported rollers spaced from said support means and having rectilinear axes, and guide means between said slitting means and each of said rollers for reshaping each netting into a flat shape, the improvement wherein said guide means comprises a. a stationary guide member formed with a curvilinear guiding edge located adjacent the path of said hose-like web with its ends located downstream of the associated slitting means and extending from said ends symmetrically outwardly relative to a line connecting the slitting means and forwardly in the direction of advance of said hose-like web whereby the center point of said edge is located furthest away from said connecting line, the axes of said rotatable rollers being located rearwardly of said center point of the guiding edge, as seen in the direction of travel of said hose-like fabric, and b. two stationary guide bars each located between said guiding edge and an associated roller, which bars issue symmetrically from two points intermediate the ends of the guiding edge and extend outwardly towards the ends of the roller.