a rotary coating pan (1) having a front opening (3a) through which the products to be coated are introduced;
a drying device having means (5) for injecting air into the pan for drying the products, and, air exhaust means (7) having an end equipped with perforated hollow bodies (9a, 9b), adapted to be immersed in the products;
sliding means (21) supporting the exhaust means (7) for movement in a direction longitudinal to the exhaust means (7), between an operating position and at least one advanced position in which the end of the exhaust means (7) is in proximity to the front opening such that the exhaust means can be disassembled by an operator located outside the pan adjacent to the front opening.
The coating machine according to claim 1 wherein the sliding means support the exhaust means outside of the rotary pan in a cantilevered way so that the end of the exhaust means equipped with the hollow bodies (9a, 9b) is supported in the rotary pan thereby.
The machine according to claim 1 further comprising means for rotatably supporting the exhaust means (7), and lever means (19) fastened to an outer surface of the exhaust means, actuator means (17) connected to the lever means such that the exhaust means is rotatably displaced by the actuator means acting on the lever means.
3. The coating machine according to claim 1 further comprising a pair of supporting means (13,14), integral with the sliding means, each supporting means having respective rollers (15,16) that rotatably support the exhaust means (7).
Coating machines for pharmaceutical, confectionary and the like, are usually equipped with a rotary hollow drum, in which the products to be coated are introduced and sprayed with a liquid mixture aimed at forming the coating.
Inside the rotary drum, also called coating pan, the products are subsequently exposed to a stream of hot air, so as to cause drying of the coating layer.
In several drying devices used to perform this operation, the air is supplied in the pan and exhausted therefrom at a distance above the tumbling products.
Alternatively, the air is supplied and exhausted via suitably shaped bodies which are immersed in the heap of products. coating machine
