Abstract: An apparatus for coating or encapsulating articles, having a drum with a perforated wall rotatably assembled in a wrap-around chamber and suitable for containing and stirring a batch of articles to be coated; a dispenser group with one or more nozzles for spraying a coating product; a gas inlet to direct clean drying gas against the perforated wall and a gas outlet to extract from the chamber dirty drying gas. An adjustable closure system is interposed between the drum and the gas outlet of the chamber, defining a passage for the dirty drying gas smaller than the passage by the gas outlet and further displaced or concentrated coinciding with the area of the wall of the drum that is effectively covered by the batch of articles. An automated adjustment of the locking system is envisaged, taking into account the position of the nozzles within the drum.

Abstract: The invention relates to a coating device (100) with movable spray nozzles comprising a rotating drum (3) and positioning group (1) of a set of spray nozzles (21) for a product with a control column (5) able to be located essentially axially inside the drum (3) and which houses an inner shaft (6), the control column (5) being equipped with at least an articulated arm (7) that includes a rotating nozzle set (21) carrier (20). A transmission system (30) based on pulley means and corresponding pulling means housed in the control column (5) and in the articulated arm (7) simultaneously produce the contraction or extension of the articulated arm (7) and the rotation of the nozzle set (21) carrier (2) based on the relative angular position between the steering column (5) and the inner shaft (6).

Abstract: The invention relates to a coating device (100) with movable spray nozzles comprising a rotating drum (3) and positioning group (1) of a set of spray nozzles (21) for a product with a control column (5) able to be located essentially axially inside the drum (3) and which houses an inner shaft (6), the control column (5) being equipped with at least an articulated arm (7) that includes a rotating nozzle set (21) carrier (20). A transmission system (30) based on pulley means and corresponding pulling means housed in the control column (5) and in the articulated arm (7) simultaneously produce the contraction or extension of the articulated arm (7) and the rotation of the nozzle set (21) carrier (2) based on the relative angular position between the steering column (5) and the inner shaft (6).