| 摘要 |
Disclosed is a cold air injection mechanism that places food objects to be conveyed on a metal belt and cools or freezes same, and wherein the installation height of the conveyance surface of the metal belt can be reduced and workability for an operator improved, without reducing the cooling effect on the objects to be cooled. Upper cold air injection units (16) comprising slit nozzles (20) with a funnel-shaped cross-section are provided in the upper section of the metal belt (12) and lower cold air injection units (26) comprising box-shaped casings (28) with a plurality of perforations (29) in the flat upper surface (28a) thereof are provided in the lower section of the metal belt (12). The installation position of the metal belt (12) can be lowered and work made easier for an operator of shorter stature, because box-shaped casings (28) with a small installation space are provided and rotation drums (54 and 56) that drive the metal belt (12) are provided outside a sealed space. |
