| 摘要 |
<p>PCT No. PCT/EP96/00119 Sec. 371 Date Sep. 26, 1997 Sec. 102(e) Date Sep. 26, 1997 PCT Filed Jan. 12, 1996 PCT Pub. No. WO96/21595 PCT Pub. Date Jul. 18, 1996Shown and described is a process for closing filled open-top folded-carton packages (1) made from bottom-sealed tubular sections, whereby closing is by ultrasonic welding by means of an anvil (5) comprising a recess for the longitudinal seam (2) of the folded-carton package (1), and a sonotrode (6), and a device for filling such folded-carton packages (1) and closing the gable seam (8). Optimal tightness of the filled folded-carton packages (1) is achieved by position-acquisition of the longitudinal seam (2) of every folded-carton package (1) in relation to the cell transporting this folded-carton package (1), alignment of the anvil across the direction of transport of the folded-carton packages (1) until the recess for the longitudinal seam (2) matches the actual position of the longitudinal seam (2) of the next folded-carton package (1) to be closed, and sealing and folding over the gable seam (8) or the ridge seam respectively. The respective device is characterized in that a device for position-acquisition of the longitudinal seam (2) of a folded-carton package (1) in relation to the cell transporting the folded-carton package (1) is provided; that the anvil (5) is adjustable across the direction of transport of the folded-carton package (1) and that a control unit for alignment of the anvil (5) in relation to the longitudinal seam (2) of the folded-carton package (1) to be sealed is provided.</p> |
