Reconstituted tobacco sheet production device and production method

Abstract

This reconstituted tobacco raw material production device comprises a die that discharges a reconstituted tobacco raw material in a sheet-like shape, and a take-up device that takes up the sheet-like reconstituted tobacco raw material discharged from the die. The take-up device has a pair of first driving rollers that sandwich the sheet-like reconstituted tobacco raw material, and is configured so as to take up the sheet-like reconstituted tobacco raw material while tension is being applied thereto.

1 . A manufacturing apparatus for a reconstituted tobacco sheet, the manufacturing apparatus comprising:
 a die that discharges reconstituted tobacco raw material in a sheet shape; and   a take-up device that takes up the sheet-shaped reconstituted tobacco raw material discharged from the die, wherein   the take-up device includes a pair of first drive rollers that sandwich the sheet-shaped reconstituted tobacco raw material and is configured to take up the sheet-shaped reconstituted tobacco raw material while applying tension to the sheet-shaped reconstituted tobacco raw material.   
     
     
         2 . The manufacturing apparatus for a reconstituted tobacco sheet according to  claim 1 , wherein
 the take-up device includes a pair of second drive rollers that take up the sheet-shaped reconstituted tobacco raw material from the pair of first drive rollers while sandwiching the sheet-shaped reconstituted tobacco raw material, and   a rotation speed of the second drive rollers is higher than a rotation speed of the first drive rollers.   
     
     
         3 . The manufacturing apparatus for a reconstituted tobacco sheet according to  claim 1 , wherein
 the take-up device includes a tension roller configured to apply tension to the sheet-shaped reconstituted tobacco raw material taken off by the pair of first drive rollers and movable in a predetermined direction, and a biasing member pressing the tension roller against the sheet-shaped reconstituted tobacco raw material.   
     
     
         4 . The manufacturing apparatus for a reconstituted tobacco sheet according to  claim 1 , wherein
 the take-up device includes a direction change roller located upstream of the first drive rollers and changes a conveying direction of the sheet-shaped reconstituted tobacco raw material discharged from the die.   
     
     
         5 . The manufacturing apparatus for a reconstituted tobacco sheet according to  claim 1 , wherein
 the take-up device includes a treatment roller located downstream of the first drive rollers and applies surface treatment to the sheet-shaped reconstituted tobacco raw material conveyed from the first drive rollers.   
     
     
         6 . The manufacturing apparatus for a reconstituted tobacco sheet according to  claim 1 , wherein
 the take-up device is configured to take up the sheet-shaped reconstituted tobacco raw material at room temperature.   
     
     
         7 . The manufacturing apparatus for a reconstituted tobacco sheet according to  claim 1 , further comprising:
 a control device that controls driving of the pair of first drive rollers; and   a sheet sensor that is communicably connected to the control device and that measures a flow rate of the sheet-shaped reconstituted tobacco raw material discharged from the die, wherein   the control device is configured to control a rotation speed of the pair of first drive rollers based on flow rate data measured by the sheet sensor.   
     
     
         8 . The manufacturing apparatus for a reconstituted tobacco sheet according to  claim 1 , further comprising:
 a control device that controls driving of the pair of first drive rollers; and   a tension sensor that is communicably connected to the control device and that measures tension applied to the sheet-shaped reconstituted tobacco raw material discharged from the die, wherein   the control device is configured to control a rotation speed of the pair of first drive rollers based on tension data measured by the tension sensor.   
     
     
         9 . A manufacturing method for a reconstituted tobacco sheet, the manufacturing method comprising:
 discharging the reconstituted tobacco raw material from a die in a sheet shape; and   taking off the sheet-shaped reconstituted tobacco raw material by sandwiching the sheet-shaped reconstituted tobacco raw material with a pair of first drive rollers, and applying tension to the sheet-shaped reconstituted tobacco raw material.   
     
     
         10 . The manufacturing method for a reconstituted tobacco sheet according to  claim 9 , the manufacturing method further comprising:
 taking off the sheet-shaped reconstituted tobacco raw material from the pair of first drive rollers while sandwiching the sheet-shaped reconstituted tobacco raw material with a pair of second drive rollers; and   setting a rotation speed of the second drive rollers so as to be higher than a rotation speed of the first drive rollers.   
     
     
         11 . The manufacturing method for a reconstituted tobacco sheet according to  claim 9 , the manufacturing method further comprising:
 applying tension with a tension roller to the sheet-shaped reconstituted tobacco raw material taken off by the pair of first drive rollers by pressing the tension roller against the sheet-shaped reconstituted tobacco raw material.   
     
     
         12 . The manufacturing method for a reconstituted tobacco sheet according to  claim 9 , the manufacturing method further comprising:
 changing a conveying direction of the sheet-shaped reconstituted tobacco raw material discharged from the die upstream of the first drive rollers.   
     
     
         13 . The manufacturing method for a reconstituted tobacco sheet according to  claim 9 , the manufacturing method further comprising:
 applying surface treatment to the sheet-shaped reconstituted tobacco raw material conveyed from the first drive rollers downstream of the first drive rollers.   
     
     
         14 . The manufacturing method for a reconstituted tobacco sheet according to  claim 9 , the manufacturing method further comprising:
 taking off the sheet-shaped reconstituted tobacco raw material by the first drive rollers at room temperature.   
     
     
         15 . The manufacturing method for a reconstituted tobacco sheet according to  claim 9 , the manufacturing method further comprising:
 measuring a flow rate of the sheet-shaped reconstituted tobacco raw material discharged from the die; and   controlling a rotation speed of the first drive rollers based on measured flow rate data.   
     
     
         16 . The manufacturing method for a reconstituted tobacco sheet according to  claim 9 , further comprising:
 measuring tension applied to the sheet-shaped reconstituted tobacco raw material discharged from the die; and
 controlling a rotation speed of the first drive rollers based on measured tension data.