Machine for manufacturing filter rods

Abstract

A machine for manufacturing tobacco industry filter rods, the filter rods comprising single-length longitudinal objects, wherein the machine comprises: a preparation unit for preparing a strand of filtering fibers; a forming unit for forming a continuous filter rod from the strand of the filtering fibers; a feeding unit for feeding multiple-length longitudinal objects; a cutting unit for cutting the multiple-length longitudinal objects into the single-length longitudinal objects; a transferring unit for transferring the single-length longitudinal objects; a positioning unit for placing the single-length longitudinal objects in the continuous filter rod while it is being formed; a cutting head for cutting the formed continuous filter rod that comprises the filtering fibers and the single-length longitudinal objects, into individual filter rods. The cutting unit for cutting the multiple-length longitudinal objects into the single-length longitudinal objects comprises a multi-flute drum conveyor.

1 . A machine for manufacturing tobacco industry filter rods, comprising:
 a preparation unit for preparing a strand of filtering fibers;   a forming unit for forming a continuous filter rod from the strand of the filtering fibers;   a feeding unit for feeding multiple-length longitudinal objects;   a cutting unit, comprising a multi-flute drum conveyor, for cutting the multiple-length longitudinal objects into the single-length longitudinal objects;   a transferring unit for transferring the single-length longitudinal objects;   a positioning unit for placing the single-length longitudinal objects in the continuous filter rod while it is being formed; and   a cutting head for cutting the formed continuous filter rod that comprises the filtering fibers and the single-length longitudinal objects, into individual filter rods.   
     
     
         2 . The machine according to  claim 1 , wherein the feeding unit for feeding the multiple-length longitudinal objects comprises a channel configured to feed the multiple-length longitudinal objects in a form of a mass flow. 
     
     
         3 . The machine according to  claim 1 , wherein the transferring unit is configured to transfer the single-length longitudinal objects in the form of a flow of the single-length longitudinal objects along a duct. 
     
     
         4 . The machine according to  claim 1 , wherein the transferring unit for transferring the single-length longitudinal objects comprises a transferring drum having a spiral element on a side surface. 
     
     
         5 . The machine according to  claim 1 , wherein a separating unit is located at the end of the duct and configured to receive the single-length longitudinal objects and to transfer the single-length longitudinal objects, one by one, to the positioning unit. 
     
     
         6 . The machine according to  claim 1 , wherein the positioning unit for placing the single-length longitudinal objects into the continuous filter rod comprises a rotary positioning disc having a horizontal axis and transporting seats for the single-length longitudinal objects. 
     
     
         7 . The machine according to  claim 1 , wherein the positioning unit for placing the single-length longitudinal objects into the continuous filter rod being formed comprises a longitudinal pushing-off element for pushing the single-length longitudinal objects out of the transporting seats of the positioning disc. 
     
     
         8 . The machine according to  claim 1 , wherein the positioning unit for placing the single-length longitudinal objects into the continuous filter rod comprises a rotary pushing element for pushing the single-length longitudinal objects out of the transporting seats of the positioning disc. 
     
     
         9 . The machine according to  claim 1 , comprising a gluing unit for supplying glue onto the single-length longitudinal objects. 
     
     
         10 . The machine according to  claim 1 , wherein a nozzle for supplying glue is located at a circumference of the positioning disc. 
     
     
         11 . The machine according to  claim 1 , wherein the multiple-length longitudinal object is tubular in form.