METHOD AND DEVICE FOR SUPPLYING FILTER MATERIAL TO A FILTER ROD FORMING MACHINE

摘要

A method and a device for supplying filter material to a filter rod forming machine having a peripheral axial portion and a central axial portion, according to which a flat band of filter material, obtained working a single “tow”, is longitudinally cut in at least two strips, each of which is fed to a respective pneumatic device adapted to transform the respective strip in a respective cord. The cords are then fed to an inlet of the forming machine at positions evenly distributed about the central axial portion for forming the peripheral axial portion.

主权项

1. A method for supplying filter material to a filter rod forming machine, each filter rod comprising a peripheral axial portion and a central axial portion, the forming machine having an inlet having an axis, and the method comprising the steps of:
providing an inlet unit having a output mouthpiece, the inlet unit being designed to work a single “tow” so as to transform it into a flat band, and to feed the flat band to the output mouthpiece, and supplying the flat band to said inlet; longitudinally cutting the flat band in at least two strips at a position between the output mouthpiece and said inlet; feeding each strip of the at least two strips to a respective pneumatic advancement device designed to transform each strip in a respective cord; providing a probe coaxial to said axis through said inlet to define said central axis portion; feeding a plurality of cords transformed from the at least two strips-to said inlet at positions evenly distributed about the axial probe to form said axial peripheral portion.