Patent ID: 11447863

Abstract:
A particle coating device includes a container having a powder supply port that supplies a powder, a first rotation introducer provided below the powder supply port, a second rotation introducer provided below the first rotation introducer, a first magnet roller coupled with the first rotation introducer, a second magnet roller coupled with the second rotation introducer, a first drive unit that rotates the first magnet roller, a second drive unit that rotates the second magnet roller, a control unit that controls an operation of the first drive unit and an operation of the second drive unit, and a film forming unit that supplies a coating material for coating particles in the powder into the container. A product r1ω12 of a rotation radius r1 and a square of a rotation speed ω1 per unit time of the first magnet roller is larger than a product r2ω22 of a rotation radius r2 and a square of a rotation speed ω2 per unit time of the second magnet roller.