| 摘要 |
<p>A packaging apparatus for making two-lobed tea bags with squeeze feature envisages a consecutive series of stations (6, 8, 9, 11, 12, 13, 16, 17) located along a feed line (A) and used to make a continuous tube (7t) of heat-sealable filter paper with a longitudinal centre line (X) and including individual pouches (1, 2) containing charges (5) of product; each pouch (1, 2) is delimited by a front (7a) and rear (7p) area closed off from the other pouches by a crossways seal. At a station (13), a heat-sealable thread (3) is made to follow a path (T), forming a coil (S), on the free surface of the pouches (1, 2) and is sealed to the latter, with the ends (3a, 3b) of the thread (3) placed on corresponding front areas (7a) of each pouch (1, 2) on opposite sides of the centre line (X). The next station (16) cuts the continuous tube (7t) and the thread (3) crossways in such a way as to form a tea bag consisting of a pair of pouches (1, 2). At the last station (17), the pouches (1, 2) are folded over and sealed to each other at their free ends (1b, 2b) where a tag (4) used for picking up the tea bag is then applied. <IMAGE></p> |
