| 摘要 |
<p>An improved form, fill, seal and separate packaging machine (10) for reclosable containers is accomplished by a plurality of stations disposed along a path of travel of a thermoplastic web (12) including means (19) to attach a pair of mated, resealable closure strips to the base web. The machine is intermittent in its operation, with movement of the web (12) through the machine controlled so that the various steps of applying the closure strips, forming, filling, sealing and separating the reclosable containers are performed during periodic stops of the machine (10). The machine (10) is further characterized by its use of two pairs of web belts (26, 28 and 82, 84) to move the web (12) through the machine (10). A first pair of web belts (26, 28) initially receive the folded web stock and partially form and completely fill the containers. The second pair of web belts (26, 28) overlap with the downstream end of the first pair of belts (26, 28), but are disposed lower than the first belts (26, 28). When the filled partially formed containers pass from the first pair of belts (82, 84) to the second pair of belts, the unsealed free ends are exposed for final sealing and severing.</p> |
