DEVICE FOR FORMING A SHEET OF FIBER HAMMER, PARTICULARLY FOR LOADING A TEXTILE MACHINE SUCH AS A CARD

摘要

The invention concerns a device for forming a sheet-lap of fibre tufts, in particular for continuously loading a textile machine such as a card, comprising a feeding shaft (4) open at its top (4a) and bottom (4b) ends, and provided with an air outlet (9) of a predetermined section or several air outlets distributed over a predetermined section. The outlet orifice(s) (9) emerge directly in an expansion chamber (13). The air inside the expansion chamber is sucked up through an air-distributing chamber (18a), arranged to be set under negative pressure conditions, and communicating with the expansion chamber (13) through an air-recirculating slot (14) extending substantially over the entire length (l) of the section of the outlet orifice(s) (9) or through a plurality of recirculating orifices distributed substantially over the entire length (l) of the section of the outlet orifice(s) (9).