公开(公告)号：WO2022078949A1

公开(公告)日：2022-04-21

申请号：PCT/EP2021/078034

申请日：2021-10-11

Applicant: INTERNATIONAL TOBACCO MACHINERY POLAND SP. Z O.O.

Inventor： WESOLOWSKI, Jaroslaw

IPC: B31C3/00 ,  B31D5/00 ,  B65H23/182

Abstract: The object of the application is an apparatus for manufacturing of spiral tubes (T) having at least two layers, comprising: at least two feeding units (5a, 5b, 5c) for feeding material strands (2, 3, 4), a tensioner (9) of the material strand (2, 3, 4), a forming unit (10) comprising a forming rod (11) and a forming strip (12) that winds a formed fragment of a continuous tube (CT) for forming the tube on the forming rod (11), and a cutting head (13) for cutting an individual tube (T) from the formed continuous tube (CT). The apparatus is characterised by further comprising an identifying unit (20) for identifying a point of deviated strand (2, 3, 4) parameters and an adjusting unit (14) adapted to alter the tension of at least one strand (2, 3, 4) by means of the tensioner (9), in response to a signal identifying the point of deviated strand (2, 3, 4) parameters generated by the identifying unit (20). The object of the application is also a method for manufacturing of spiral tubes (T) having at least two layers.