Coating system and associated operating method

A method for a coating system for coating components, comprising:

• a) conveying the components to be coated in a conveying direction through a coating booth;
• b) coating the components in the coating booth with a coating agent, a portion of the applied coating agent being deposited on the components to be coated, while another portion of the applied coating agent initially floats in the booth interior of the coating booth as overspray,
• c) reducing the overspray from the booth interior by:
• generating a downwardly directed air flow which is spatially limited and does not include the entire booth interior, the air flow generated by means of a blowing nozzle arrangement which delivers the air flow downwards through at least one blowing nozzle in order to blow the overspray downwards out of the booth interior, the blowing nozzle arrangement arranged above the conveyor and extending through the coating booth transversely to the conveying direction,
• pivoting the blowing nozzle arrangement about a horizontal axis of rotation, and
• holding the at least one blowing nozzle in a constant angular orientation relative to the vertical during the pivoting so that the blowing nozzle delivers the air flow vertically downwards, and
• d) reducing the overspray from the booth interior by means of a movable manipulator having a plurality of movement axes, wherein:
• the manipulator guides at least one air nozzle in order to blow out air for reducing the overspray,
• the manipulator has a proximal robot arm and a distal robot arm, the blowing air nozzle for reducing the overspray being mounted on the proximal robot arm and/or on the distal robot arm,
• the manipulator has a nozzle strip having a plurality of air nozzles, and
• the nozzle strip is oriented substantially horizontally and transversely to the conveying direction, and
• the nozzle strip is arranged on the proximal robot arm and/or on the distal robot arm.

A method for a coating system for coating components, comprising:

• a) conveying the components to be coated in a conveying direction through a coating booth in stop-and-go operation;
• b) coating the components in the coating booth with a coating agent, a portion of the applied coating agent being deposited on the components to be coated, while another portion of the applied coating agent initially floats in the booth interior of the coating booth as overspray,
• c) reducing the overspray from the booth interior by:
• generating a downwardly directed air flow which is spatially limited and does not include the entire booth interior, the air flow generated by means of a blowing nozzle arrangement which delivers the air flow downwards through at least one blowing nozzle in order to blow the overspray downwards out of the booth interior, the blowing nozzle arrangement arranged above the conveyor and extending through the coating booth transversely to the conveying direction,
• pivoting the blowing nozzle arrangement about a horizontal axis of rotation, and
• holding the at least one blowing nozzle in a constant angular orientation relative to the vertical during the pivoting so that the blowing nozzle delivers the air flow vertically downwards,
• d) as the components to be coated are discharged from the coating booth, they are first accelerated with a specific acceleration and then braked again with a specific deceleration, and
• e) during discharge from the coating booth, the acceleration is lower than the following deceleration.