| 摘要 |
<p>PURPOSE:To provide a can self rotating device capable of allowing self-rotation of an alluinum can, etc., at a high speed without giving external damages or peeling off prints on its side surface. CONSTITUTION:An alluminum can self rotating device 30 is structured by disposing, along a fan-shaped arc, a plurality of coils 3 for supplying magnetic fluxes changed in sine waveforms while keeping a specified phase difference between adjacent coils. An aluminum can 2 held in the holding part 10 of a star wheel 5 reaches the position of the aluminum can self rotating device 30 according to the rotation of the star wheel 5, and when magnetic fluxes are supplied from a coil 31 to the side thereof, this can is self rotated in an arrow direction being held in the holding part 10. Then, protection paints are uniformly sprayed from an injection nozzle 7 toward a bottom part positioned on the side opposite to the opening part 2a of an alluminum can 2.</p> |
