Nozzle arrangement for applying fluids, use of the nozzle arrangement, and system for applying fluids

A method comprising:

• applying a fluid to an edge fold region of a substrate using a nozzle arrangement having a connecting body and a spray nozzle,
• wherein the connecting body of the nozzle arrangement is configured to be removably connectable to a mounting region of a distributor;
• wherein the spray nozzle is configured to be removably connectable to the connecting body, the spray nozzle comprising:
• a rod-shaped nozzle body extending in a longitudinal direction of the spray nozzle and comprising at least one first fluid channel for the fluid from the distributor to be applied to the substrate through a nozzle outlet opening of the nozzle body, the nozzle body having a conical shape at an end-side nozzle outlet region that narrows in a direction of the nozzle outlet opening;
• a nozzle housing configured to receive the nozzle body;
• second fluid channels for shaping air formed between a lateral surface of the nozzle body and an inner surface of the nozzle housing, the second fluid channels extending in the longitudinal direction of the spray nozzle;
• and
• grooves formed on the end-side nozzle outlet region, wherein each of the grooves is fluidically connected to a different respective one of the second fluid channels and extends from an end of the respective second fluid channel towards the nozzle outlet opening;
• and
• dispensing the fluid and the air at the end-side nozzle outlet region at the nozzle outlet opening so that the grooves dispense the air received from the second fluid channels to provide a spiral-shaped deflection of the fluid that is dispensed from the nozzle outlet opening.

A system for applying fluid to a substrate, the system comprising:

• a distributor head configured to be connected to a robot arm and which is movable relative to the substrate along a movement direction;
• a connecting body configured to be removably connectable to a mounting region of the distributor head;
• and
• a spray nozzle configured to be removably connectable to the connecting body, the spray nozzle comprising:
• a rod-shaped nozzle body extending in a longitudinal direction of the spray nozzle and comprising at least one first fluid channel for the fluid to be applied to the substrate through a nozzle outlet opening of the nozzle body, the nozzle body having a conical shape at an end-side nozzle outlet region that narrows in a direction of the nozzle outlet opening;
• a nozzle housing configured to receive the nozzle body;
• second fluid channels for shaping air formed between a lateral surface of the nozzle body and an inner surface of the nozzle housing, the second fluid channels extending in the longitudinal direction of the spray nozzle;
• and
• grooves formed on the end-side nozzle outlet region, wherein each of the grooves is fluidically connected to a different respective one of the second fluid channels and extends from an end of the respective second fluid channel towards the nozzle outlet opening.