| 摘要 |
The present invention relates to a method and an apparatus for forming double filters. The apparatus includes a feed wheel (18), an assembly wheel (20), a take-off wheel (22), and a flipping wheel (24). According to the method of the invention, tubes (10) are loaded from the feed wheel (18) to the assembly wheel (20) where one hollow end of the tubes is filled. The half-filled tubes (10') are then transferred to the take-off wheel (22) and then to the flipping wheel (24) where the tubes are flipped. The half-filled and flipped tubes (10'') are returned to vacant positions on the feed wheel and transferred back to the assembly wheel, so that the remaining hollow ends can be filled. The filled tube (10''') is transferred to the take-off wheel (22), where it is removed from the take off wheel (22) using a stripper and/or additional wheels for further processing. |
