| 摘要 |
The present invention relates to an improved apparatus and method for delivering a coating substance and more particularly, though not necessarily, to an improved apparatus for delivering a powder coating. There exists a wide variety of products that require to be coated with a substance (e.g. powder, liquid, suspension, etc) during their preparation. For example, snack foods such as potato crisps and corn chips are usually coated with flavouring. A traditional method used for coating snack foods involves the use of a tilted cylindrical rotating drum. Notwithstanding improvements within the industry, the percentage of snack foods that are produced without full double-sided coating is high, with a significant of typical snack foods being coated only one side is of the order of 60%. The present invention seeks to provide a system for applying flavouring to snack foods and the like reliably and evenly across the coated surfaces of the snack. The present invention provides an apparatus for delivering a coating substance towards a product to be coated in a coating system having an operating width, the apparatus comprising an inclined vibratory chute (20) for conveying the coating substance (2) to a location above said product, the chute comprising a base, a pair of unequal length sidewalls (11,12) and an exit (3) whereby to provide a chute with an exit edge in general correspondence with the operating width. |
