| 摘要 |
The invention relates to a container handling machine (1) having at least one operative unit (18) comprising a plunger (31) selectively moved along its axis (E) to perform a deformation operation on a base (12) of a container (3) from a first swollen configuration to a second inwardly-retracted configuration, and actuator means (35) selectively activated to move the plunger (31) along its axis (E) between a first position, detached from the base (12) of the container (3), and a second position, in which the plunger (31) defines the second configuration of the base (12); the machine (1) further comprises a control unit (41) configured to selectively activate the actuator means (35) for producing a first stroke of the plunger (31) along its axis (E) from the first position to the second position and vice versa, in order to perform said deformation operation; the control unit (41) is configured to activate the actuator means (35) once more after the deformation operation for producing a second stroke of the plunger (31) along its axis (E), with a lower force than in the first stroke and directed towards the same container (3) previously deformed, in order to check whether the deformation operation on the container (3) occurred in the right way. [FIG. 2] |
