Drink filling system

A drink filling system comprising:

• a molding section that molds a bottle from a heated preform by a blow-molding treatment;
• a sterilizing section that contacts a sterilizer to the molded bottle;
• a rinsing section that rinses the bottle discharged from the sterilizing section;
• a filling section that fills the bottle rinsed in the rinsing section with a drink and then seals the bottle filled up with the drink;
• a bottle conveying path that continuously conveys the bottle from the molding section to the filling section through the sterilizing section and the rinsing section;
• a chamber that covers a portion extending from the molding section to the filling section;
• an air supply section chamber, which has an interior, that is between the molding section chamber and the sterilizing section chamber;
• a first clean air supply unit that flows clean air from the interior of the air supply section chamber into the molding section chamber and the sterilizing section chamber;
• an atmosphere shut-off chamber that shuts off an atmosphere between the sterilizing section chamber and the rinsing section chamber;
• a second clean air supply unit that flows clean air from the filling section chamber into the atmosphere shut-off chamber through the rinsing section chamber or further into the sterilizing section chamber;
• and
• an exhaust blower for at least one of the atmosphere shut-off chamber and the sterilizing section chamber, the exhaust blower exhausts the flowing air that flows from the filling section chamber into the atmosphere shut-off chamber through the rinsing section chamber or further into the sterilizing section chamber and from the interior of the air supply section chamber into the sterilizing section chamber.