An improved conveyor belt cleaning device and system is described. The conveyor belt cleaning device comprises a frame below a conveyor belt. A leaf spring system is mounted on the frame. At least one arm is mounted on the leaf spring system and a scraper blade is mounted on the arm and arranged to engage with the conveyor belt to remove material from the conveyor belt. Another embodiment improves flexibility and strength of the device and system using a stepped or bellowed portion in the leaf springs.