| 摘要 |
On a dual-rod cigarette manufacturing machine , the two paper strips for wrapping the two rods are obtained by longitudinally dividing a main strip by means of a cutting device , the strips being fed to the wrapping section along the same route, along which there is provided, for each strip, a tension detecting device . Should the tension of the two strips depart from a preset value, when the tension of at least one of the strips departs from a given tension range, the respective detecting device provides for regulating the speed of the main strip so as to restore correct tension on both strips |
