Device for preventing carbon fibers from being scratched in production of carbon fiber prepreg cloth

The utility model discloses a device for preventing carbon fibers from being scratched in production of carbon fiber prepreg cloth, which comprises a box body, grooves are formed in the tops of two sides of an inner cavity of the box body, movable blocks are movably connected to inner cavities of the grooves, first springs are fixedly connected to the bottoms of the movable blocks, and lifting plates are fixedly connected to the opposite sides of the movable blocks. Through cooperation of the box body, the groove, the movable block, the first spring, the lifting plate, the trapezoidal block, the motor, a screw rod, a threaded sleeve, a guide groove, a guide block, a push roller, a yarn spreading roller, a storage groove, a telescopic rod, a second spring, a conveying mechanism, an air bag, a material passing opening, a fixed plate, a limiting groove, a third spring, an adjusting rod, a buffer plate and a bottom plate, the yarn spreading roller can spread yarn; according to the device for preventing the carbon