Based on the processing technology of mosquito-repellent incense coil, a sprayer device was designed which was used to sparge mosquito-repellent liquid medicine to the semi-finished incense coil. Its working principle and advantages were discussed, and the sparging control principle of this sprayer device was analyzed. A new-type fan-shaped spray nozzle was designed by which the original cone-shaped spray flow was changed into a fan-shaped one with narrow and long belt shape, so the liquid medicine could be sprayed evenly on the semi-finished incense coil. The formula of the mass of a single-coil mosquito repellent was derived. A prototype was manufactured and spraying experiments were made. The experimental results show adopting the device, the liquid dosage is effi-ciently controlled. Not only the mosquito-repellent effect is good but also cost is reduced.%针对蚊香生产工艺研制一种喷药设备,对盘香毛胚喷洒驱蚊药液.阐述该蚊香喷药设备的工作原理及优点；详细分析喷药量控制原理；设计新型的扇形喷嘴,使喷射液流从原来的圆锥形变成扇形狭长带状液流,保证蚊香毛胚上药液喷洒均匀,并推导出单盘蚊香毛胚上的喷药质量计算公式.进行样机制作和喷药实验,结果表明:使用该设备能使单盘蚊香的驱蚊药液用量得到有效控制,在保证驱蚊效果同时节约资金成本.
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