Apparatus comprising a tipping paper suction drum
AssigneeTobacco Research and Development Institute (Proprietary) Limited
InventorGerhard Le Roux
Life of this patent
Estimating the term…
Abstract
Apparatus comprising a tipping paper suction drum (10) adapted to receive a web (13) of tipping paper which is cut on the tipping paper suction drum to form successive patches (8) of tipping paper for wrapping smoking articles. The tipping paper suction drum is adapted to rotate at a speed greater than the speed at which the web of tipping paper is fed onto the tipping paper suction drum such that spaces are formed between the cut patches of tipping paper. A peripheral surface (14) of the tipping paper suction drum has suction holes (16) arranged to pull the leading portion of the web of tipping paper towards the surface of the tipping paper suction drum in the time between successive cuts.
Claims14
Apparatus comprising a tipping paper suction drum and a cutting unit, the tipping paper suction drum being adapted to receive a web of tipping paper and the cutting unit being adapted to cut the web of tipping paper on the tipping paper suction drum to form successive patches of tipping paper for wrapping smoking articles, the tipping paper suction drum being adapted to rotate at a speed greater than the speed at which the web of tipping paper is fed onto the tipping paper suction drum such that spaces are formed between the cut patches of tipping paper, wherein a peripheral surface of the tipping paper suction drum comprises:
- first suction holes arranged to retain the cut patches of tipping paper on the peripheral surface of the suction drum, and
- second suction holes arranged to pull a leading edge portion of the web of tipping paper towards the peripheral surface of the tipping paper suction drum in the time between successive cuts;
- and,
- wherein the apparatus further comprises a suction control component adapted to deactivate suction through said second suction holes as they move past a leading edge of the web of tipping paper.
A method of assembling smoking articles comprising:
- feeding a web of tipping paper onto a tipping paper suction drum;
- cutting said web to form successive patches;
- rotating the tipping paper suction drum at a speed greater than the speed at which the web of tipping paper is fed onto the tipping paper suction drum such that spaces are formed between the cut patches of tipping paper;
- applying suction via first suction holes of the tipping paper suction drum arranged to retain the cut patches of tipping paper on the peripheral surface of the drum, and
- applying suction via second suction holes of the tipping paper suction drum to pull a leading edge portion of the web of tipping paper towards the peripheral surface of the tipping paper suction drum in the time between successive cuts;
- assembling a smoking article using a patch cut from the web;
- and,
- deactivating the second suction holes associated with the leading portion of the web of tipping paper as they become exposed.
Dependencies are inferred from the claim text.