| 摘要 |
PURPOSE:To uniformly coat a tablet by controlling an air cylinder in accordance with the progress of coating to displace a gun holder from the start to the end of the operation. CONSTITUTION:Tablets are put in a pan, and a coating agent is atomized and injected from a spray gun 9. In this case, the air cylinder 5 is controlled in accordance with the progress of coating to displace the gun holder 8 in the direction inclined to the surface of the tablet bed in the pan during rotation. Consequently, the tablet is automatically coated from the start to the end of the operation without opening the door of the pan. Accordingly, the coating time can be remarkably reduced, and the lot-to-lot variance in the film thickness is eliminated.
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