| 摘要 |
The present invention relates to a method and apparatus for forming two filters in a two-up configuration. 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 take-off wheel 22 and then to a 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 a take-off wheel 22, where it is then removed from the take off wheel 22 using a stripper and/or additional wheels for further processing.
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