Device and method for guiding and depositing synthetic filaments onto a non-woven fabric

摘要

Apparatus comprises a discharge device (1); a depositing belt arranged below the discharge device; and many guiding devices arranged between the discharge device and the deposit belt. The guiding devices form many inter-connected guiding lines in a pair-wise manner, to guide a filament curtain formed by the filaments. The guiding devices comprise many air inlet slots arranged below the discharge device, to supply a secondary air. At least one of the air inlet slots is associated with many air guiding elements arranged on one of the guiding devices. An independent claim is also included for guiding and depositing the synthetic filaments to form the fleece, comprising: cooling many extruded filaments, stripping and stretching the extruded filaments as a filament curtain by a generated primary air flow; directing the filament curtain with the primary air stream as a fiber stream in the direction of the depositing belt by a guiding path; and supplying many partial streams of secondary air to the fiber stream for influencing a fiber formation in the fleece. At least one of the partial streams of the secondary air is supplied to the side adjacent to the filament curtain at an inflow angle of the fiber stream across the depositing belt.