Coloring device special for zippers

The utility model discloses a coloring device special for zippers, and relates to the technical field of zipper production equipment. The coloring device comprises a coloring box, a vibration motor, a chain, a holder, a first mounting base, a hinge pin, a scraper, a telescopic rod, a displacement detector, a roll painting wheel, a second mounting base, a third mounting base, a screw rod, a motor, a paint box, a flow controller and an oil tube. The coloring device is reasonable in structural design, novel and unique in model, simple in operation, and convenient to use; the motor is a variable frequency motor or a servo motor to facilitate speed regulation; the flow controller is arranged between the paint box and the roll painting wheel to effectively control the amount of paint flowing out of the paint box and to avoid waste; the scrapper is arranged to uniformly smear the paint on the outer surface of the roll painting wheel and to avoid that the paint on the roll painting wheel is too thin or too thick; a wifi element is further arranged to return data of the flow controller to an intelligent terminal, so as to facilitate analysis.