Quick replacement type vacuum star wheel assembly and necking machine

The invention discloses a quick replacement type vacuum star wheel assembly (400). The quick replacement type vacuum star wheel assembly (400) comprises a rotating shaft assembly (410), a vacuum assembly (480) and a vacuum star wheel body assembly (450). The vacuum star wheel body assembly (450) includes a quick-change vacuum star wheel height adjustment assembly (550) including a base assembly (560) and a traveling hub assembly (570) having an actuator (574); the quick-change vacuum star wheel height adjustment assembly (550) includes two or less hold release couplings (552), configured to bring the vacuum star wheel body assembly (450) and the vacuum assembly (480) in a first longitudinal position on a rotating shaft (416) of the rotating shaft assembly and a rotating shaft (416) of the rotating shaft assembly by actuating an actuator (574) of the traveling hub assembly only requiring loosening or removal of the two or less hold release couplings (552) and the first longitudinal position moves between the s