Device For Filling A Cigarette Tube

Abstract

A device for automatically filling cigarette tubes meters out a dose of loose tobacco, feeds the dose to a press unit that presses the dose into a roll of tobacco corresponding in size to the size of a pre-manufactured paper cigarette tube. The roll is automatically injected into a paper tube. The various assemblies and units are mounted on a support structure and enclosed in a housing, so the device is safe to operate.

1 . A cigarette-tube filling device for manufacturing cigarettes by pressing a charge of tobacco into a tobacco roll and inserted the roll into a preformed cigarette paper tube, the cigarette-tube filling device comprising:
 a support structure; and   tobacco processing units that include:   a tobacco feeder that includes a tobacco hopper and a rotatable rotor with conical spines mounted in a lower portion of the tobacco hopper;   a tobacco press that includes a compression chamber provided in a steel body and a clamping assembly mounted on the steel body, and wherein the tobacco feeder is mounted above the tobacco press so as to feed a dose of tobacco into compression chamber of the tobacco press;   a tobacco injector that injects the tobacco roll into an empty cigarette paper tube;   a paper tube dispenser; and   a cigarette unloading trolley;   wherein all tobacco processing units are mounted on the support structure.   
     
     
         2 . The device of  claim 1 , wherein the compression chamber is a four-walled window that receives the dose of tobacco from the tobacco feeder, one wall being non-parallel to an opposite wall, wherein the lower edges of the compression chamber walls are sharp, so as to cut tobacco. 
     
     
         3 . The device of  claim 2 , wherein the steel body has a through-bore corresponding in diameter to the inner diameter of a cigarette tube and wherein the clamping assembly presses the dose of tobacco into a roll. 
     
     
         4 . The device of  claim 3 , wherein the clamping assembly includes two clamping plates, each having a clamping surface that is curved with an upper edge that is constructed to cut excess tobacco from the tobacco roll. 
     
     
         5 . The device of  claim 3 , wherein the tobacco injector presses the tobacco roll through the through-bore and into the empty cigarette tube. 
     
     
         6 . The device of  claim 1 , wherein the paper tube dispenser includes a conveyor for transporting individual cigarette paper tubes.