Automatic induction UV dryer, that is, ultraviolet light curing dryer is a device to dry the painted workpiece. The prior art UV dryer includes a main body and a plurality of sets of UV lamps installed in the main body. The UV lamps are fixedly installed on the top of the main body, and the purpose of drying is achieved by moving the workpiece under it. When such a UV dryer is in operation, all the UV lamp tubes are in a working state, and the UV lamp tubes cannot be adjusted according to the size or width of the workpiece, and there is a technical problem of high power consumption. It has not solved the technical problem of high power consumption in the prior art, and provides an automatic induction UV dryer with adjustable UV lamp tube spacing and energy saving. Researchers of Linyi Mengyin Yinjin Machinery Co., Ltd. designed a new type of automatic induction UV dryer, which includes a main body and a UV lamp tube. The main point is that there are multiple transmission belts and transmission wheels matched with the transmission belts in the main body; The driving wheels are respectively installed on the main body through a fixing frame, and each driving belt is provided with two UV lamp tubes, and the two UV lamp tubes are respectively located on the driving belt and the lower two belts. The UV lamp tube is fixedly installed on the transmission belt through a bracket provided with a lamp cover at one end, and the lamp cover is above the UV lamp tube. Due to the adoption of the above technical solution, the utility model can adjust the spacing of the UV lamp tubes on the transmission belt according to the width or size of the workpiece, which can not only achieve the purpose of drying, but also reduce power consumption. Body Wave Bundles Xuchang KANAZI Hair Products Co., Ltd. , https://www.kanazihair.com