An efficient coating machine capable of hardening coating on works in a
short hardening time with a small-sized hardening oven at reduced costs.
The coating machine has a painting booth, a hardening oven and a work
transfer device. The work transfer device has a rotary shaft provided at
a center of the coating machine, and a plurality of hangers, each holding
one piece of work and being turnable about the rotary shaft. The painting
booth and the hardening oven are arranged around the rotary shaft into an
arc-shaped configuration, respectively. The hardening oven has an
arc-shaped work passage adapted to move the works. One piece of work is
coated in the painting booth and continuously transferred to the work
passage of the hardening oven while being held with each of the hangers
and turned about the rotary shaft. In the work passage, the work is blown
with hot air fed from a hot air generating device for hardening the
coating on the work.