Conveying mechanism for packaging machinery and packaging machinery

A conveying mechanism for packaging machinery, comprising:

• a rotation base;
• a station assembly;
• and
• an expansion-retraction driving mechanism, wherein
• a rotation driving mechanism is configured to drive the rotation base to rotate intermittently, and the station assembly is connected to the rotation base;
• the station assembly comprises at least two station units for arranging a packaging container, the at least two station units are connected in sequence, every two adjacent station units are directly connected in a movable manner, and the expansion-retraction driving mechanism is configured to drive the two adjacent station units to move relative to each other, to make the station assembly switch between an expanded posture and a retracted posture;
• a radius of gyration of the station assembly in the retracted posture is smaller than a radius of gyration of the station assembly in the expanded posture;
• and
• wherein each station unit comprises a body and a retaining mechanism for retaining a packaging container, and wherein the retaining mechanism extends substantially perpendicular from the body and at an angle relative to a rotation plane of the rotation base.