The moulding cleaning unit is externally identical in construction to the flocking or pre-cleaning unit. It extends over a total of 5 machine cycles, separated into coarse and fine cleaning.
Moulded part cleaning unit
The final cleaning cabin is externally identical in construction to the flocking or pre-cleaning cabin. It extends over a total of 5 machine cycles, separated into coarse and fine cleaning.
The first 2 stations are used for coarse cleaning of flock deposits on the component, especially on the rear side, undercuts or ribbing.
The coarse cleaning includes 16 blow-off wide slot nozzles, distributed over 2 stations, i.e. each cleaning station is equipped with 4 blow-off nozzles for the left and 4 blow-off nozzles for the right component holder, which can be individually adjusted to the workpiece to be cleaned. All nozzles of the first 2 cleaning stations are mounted on lifting and swivelling devices, identical in construction to the flocking device. Left and right operating side can be adjusted independently of each other.
The cleaning blast air for the first 2 stations is generated by 2 high-pressure blowers, which release the cleaning air through pneumatically operated butterfly valves and only when the booth is closed. The workpiece inlet and outlet openings of the cabin, as well as the area between the pre-cleaning and fine-cleaning stations, can be closed by pneumatically operated bulkhead doors with safety edges. This also minimizes unnecessary carry-over of flock between the cleaning stages. During the cleaning process, the nozzles blow off the workpieces in all stations simultaneously.
A brush clearing device is installed below the grating floor, which transports the cleaned flock to two trough screw conveyors with suction connection installed in the cabin floor.
The 3rd station is used for fine cleaning of flock deposits on the component, especially in areas that are difficult to access or hidden. The fine cleaning extends over 3 work cycles, whereby the robot is installed in front of the second cycle of the robot cabin. During the cleaning process, 2 blowing nozzles each are moved by a robot according to the programmed component geometry. The left and right operating sides are each equipped with a robot. The cleaning blowing air for the robots is generated by 2 high-pressure blowers, which release the cleaning air through pneumatically operated butterfly valves and only when the cabin is closed.
Work cycles 1 and 3 of the robot cabin are equipped with additional, flexibly adjustable ionizing devices to minimize existing residual charge on the flock surface. The cleaning effect is supported by additionally installed rotary nozzles.
