| CPC A24D 3/025 (2013.01) [A24D 3/0279 (2013.01); A24D 3/048 (2013.01); A24D 3/14 (2013.01); B31D 5/0086 (2013.01)] | 13 Claims |
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1. A tube filter production device for producing a smoking article tube filter, the tube filter production device comprising:
a tube filter exterior forming case into which one or more filter tows are introduced and from which a tubular rod formed from the one or more filter tows is discharged;
a tube filter forming bar extending in an inner region of the tube filter exterior forming case and configured to form a hollow of the tubular rod;
a steam chamber having at least one steam nozzle in communication with the inner region of the tube filter exterior forming case and configured to supply steam to the one or more filter tows through the steam nozzle; and
a conveying member configured to convey the tubular rod discharged from the tube filter exterior forming case,
wherein the tube filter forming bar includes:
a forming bar body portion which has a first duct extending in a longitudinal direction of the tube filter forming bar;
a forming bar tip which is coupled to a downstream end of the forming bar body portion and has a second duct that is in fluid communication with the first duct; and
a flavoring nozzle formed in a downstream end of the forming bar tip and configured to deliver a flavoring liquid or a moisturizing liquid supplied through the first duct and the second duct to the hollow of the tubular rod,
wherein the flavoring nozzle ejects the flavoring liquid or the moisturizing liquid in a radial direction such that the flavoring liquid or moisturizing liquid is absorbed into an entire region of the inner side surface of the tubular rod,
wherein the tube filter forming bar extends downstream to protrude from a downstream end of the tube filter exterior forming case, and
wherein the flavoring nozzle is disposed in a region that overlaps with the conveying member in a travel path of the filter tows.
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