Method, mechanism and apparatus for momentary compression of filter material

Abstract

A mechanism for a momentary compression of a filter material used in the tobacco industry, wrapped into a wrapper and glued with an adhesive delivered from an adhesive applying apparatus, adapted to being placed on a machine for manufacturing filter rods before the adhesive applying apparatus is characterised in that it comprises at least one rotary compressing member ( 10 ) for pressing the filter material (S) linearly moving underneath it. A method of a momentary compression of a filter material used in the tobacco industry, wrapped into a wrapper and glued with an adhesive delivered from an adhesive applying apparatus on a machine for manufacturing filter rods is characterised in that before wrapping the filter material (S) into the wrapper ( 14 ) the filter material is compressed by exerting a force (F) on the filter material (S) by means of at least one rotary compressing member ( 10 ).

1 . A method of a momentary compression of a filter material used in the tobacco industry, wrapped into a wrapper glued with an adhesive delivered from an adhesive applying apparatus on a machine for manufacturing filter rods, wherein before wrapping the filter material (S) with the wrapper ( 14 ), the filter material is compressed by exerting a force (F) on the filter material (S) by means of at least one rotary compressing member ( 10 ). 
     
     
         2 . The method as in  claim 1  wherein the filter material (S) is gradually compressed by means of a set of multiple rotary compressing members ( 10 ) each acting on the compressed material (S) with a different force. 
     
     
         3 . The method as in  claim 2  wherein the force (F) exerted by successive rotary compressing members ( 10 ) on the filter material (S) increases. 
     
     
         4 . The method as in  claim 1  wherein the force (F) exerted on the filter material (S) is directed in a vertical direction. 
     
     
         5 . The method as in any  claim 1  wherein the force (F′, F″) exerted on the filter material (S) is directed at an angle (β) to the vertical direction. 
     
     
         6 . A mechanism for a momentary compression of filter material used in the tobacco industry, wrapped into a wrapper glued with an adhesive delivered from an adhesive applying apparatus, adapted to being placed on a machine for manufacturing filter rods before the adhesive applying apparatus, wherein it comprises at least one rotary compressing member ( 10 ) for pressing the filter material (S) linearly moving underneath it. 
     
     
         7 . The mechanism as in  claim 6  wherein it comprises two rotary compressing members ( 10 ). 
     
     
         8 . The mechanism as in  claim 6  wherein it comprises three rotary compressing members ( 10 ). 
     
     
         9 . The mechanism as in  claim 7  wherein the last rotary compressing member ( 10 A), considering the direction of movement of the filter material (S), has a smaller working width than the preceding compressing members ( 10 ). 
     
     
         10 . The mechanism as in  claim 6  wherein it is adapted to the adjustment of position of the rotary compressing members ( 10 ) in at least one axis, preferably in all axes. 
     
     
         11 . The mechanism as in  claim 10  wherein it is adapted to the adjustment of position of the rotary compressing members ( 10 ) in all axes. 
     
     
         12 . The mechanism as in  claim 6  wherein it is adapted to the adjustment of an angle (α) between an axis (SA) of the linear movement of the filter material (S) and a line of compression ( 13 ) of the compressing mechanism, in particular a line ( 12 ) determined by the centres of rotation of the rotary compressing members ( 10 ). 
     
     
         13 . The mechanism as in  claim 6  wherein the rotary compressing member ( 10 ) is a compressing roller with a cylindrical working surface ( 20 ). 
     
     
         14 . The mechanism as in  claim 6  wherein the rotary compressing member ( 10 ) is a compressing roller with a conical working surface ( 21 ). 
     
     
         15 . The mechanism as in  claim 6  wherein the rotary compressing member ( 10 ) is a compressing roller with an oval working surface ( 22 ). 
     
     
         16 . The mechanism as in  claim 6  further comprising an apparatus for manufacturing filter rods of the filter material used in the tobacco industry.