Rod-like article forming apparatus

Abstract

A rod-like article forming apparatus comprises an endless garniture tape (10) used for forming a tobacco rod (R) with shredded tobacco and a paper web (P), a driving drum (12) for causing the garniture tape (10) to travel in one direction, and a plurality of presser rollers (34) for pressing the garniture tape (10) against the outer circumferential surface of the driving drum (12). The presser rollers (34) increase the contacting force of the garniture tape (10) with respect to the outer circumferential surface of the driving drum (12).

Description

TECHNICAL FIELD [0001] The present invention relates to a forming apparatus for continually forming a rod-like article obtained by wrapping a filling material in a web. BACKGROUND ART [0002] This kind of forming apparatus is incorporated into a cigarette making machine or a filter making machine. For instance, Unexamined Japanese Patent Publication No. 8-214854 discloses an example of a cigarette making machine. The making machine disclosed in the publication includes a wrapping section as a forming apparatus, and the wrapping section has an endless garniture tape. The garniture tape receives a paper web and shredded tobacco as a filling material, and causes the paper web to travel with the shredded tobacco in one direction. In this process, the shredded tobacco is compression-molded into a rod-like shape and subsequently wrapped in the paper web by using the garniture tape. As a result, a tobacco rod is continually formed. [0003] The garniture tape is wound around a driving drum an...

AI Technical Summary

Benefits of technology

[0017] The wrapping section is provided with a guide path for guiding the forward path portion of the garniture tape. The forming apparatus may further include, in addition to the presser device, a reduction device for reducing friction resistance that generates between the guide path and the forward path portion of the garniture tape.

[0018] When passing through the guide path, the forward path portion of the garniture tape is used to wrap the filling material in the paper web, that is, the forming of a rod-like article. In such a forming process, the guide path produces excessive resistance for the travel of the garniture tape. The reduction device, however, reduces the running resistance of the garniture tape and lessens the tension fluctuation, or repeated load, of the garniture tape. As a consequence, the reduction device is capable of not only further increasing the service life of the garniture tape but also preventing damage to the garniture tape by acting in consort with the presser device.

Problems solved by technology

An increase in tension, however, is liable to cause tear in the garniture tape and entails frequent suspension of the making machine.

Images