| 摘要 |
The automatic splicing device has a base plate (3) supporting a first reel (1) and a second reel (2) storing primary (1a) and secondary (2a) opaque pull-tab strips, and rollers for guiding a primary pull-tab strip from the first reel (1) to a packaging machine. An infeed device (9) is mounted on the plate (3) downstream of the second reel (2) for retaining an end portion of the secondary pull-tab strip (2a) at a first location, and a clamp retains a translucent heat sealable patch (101) in a second location at a sealing unit (104). A strip cutting unit (11) and a pressure and cutting unit (13) are movably mounted on the plate (3) downstream of the infeed device (9) for cutting the primary pull-tab strip (1a) at a third location, spaced from the first location. The pressure and cutting unit is activated for applying the translucent patch extending across the gap between the ends of the opaque pull-tab strips to form an optically detectable window indicative of the splice position. <IMAGE> |
