摘要 |
The packaging machine (1) with a tool jaw adjusting system comprises two jaws, one upper (5) and one lower (6), for weld-sealing the plastic bag (4) on the conveyor belt (2), attached to two racks (8, 9) engaged on opposite sides of a drive pinion (10) provided with a splined shaft (13), on which it slides axially and which produces a vertical to-and-fro movement of both racks (8, 9) for the opening and closing of the jaws (5, 6), and means (10, 12, 13, 14, 15) for adjusting the height (H) of one jaw (5), including a mechanism (10b, 13, 15) for disengaging a rack (9) and a gear motor (12, 12') for the restricted turning (17) of the pinion (10) in order to move the second rack (8). <IMAGE> |