Fluorescent powder color wheel automatic coating device

Abstract

The invention discloses a fluorescent powder color wheel automatic coating device. The device comprises a machine base and a rack, and is characterized in that a clamping device capable of clamping acolor wheel base plate and driving the color wheel base plate to rotate is arranged on the machine base, the machine base is further provided with a first color sensor capable of identifying a color label of the color wheel base plate and controlling the clamping device to rotate, a spraying device capable of spraying a coating material to the color wheel base plate is arranged on the rack, and the rack is also provided with a scraping device capable of scraping the coating material. The fluorescent powder color wheel automatic coating device further comprises a limiting steel net, the limiting steel net is provided with a window matched with a to-be-coated area of the color wheel base plate, and the rack is further provided with a manipulator capable of moving the limiting steel net to the clamping device and making the limiting steel net cover the color wheel base plate. The device aims to overcome the defects in the prior art, and the fluorescent powder color wheel automatic coatingdevice is provided.

Description

【Technical field】 [0001] The invention relates to the field of mechanical manufacturing, in particular to automatic coating equipment for fluorescent pink wheels. 【Background technique】 [0002] The fluorescent pink wheel is one of the key components of DLP projection equipment, especially the low-cost DLP projection equipment. The production of the fluorescent pink wheel needs to coat the mixture of phosphor powder (usually a mixture of phosphor powder and glue) on the color wheel On the substrate, because the fluorescent pink wheel is excited by laser to make the fluorescent powder generate fluorescence, so the coating quality of the phosphor powder will directly affect the luminous performance of the fluorescent pink wheel. [0003] The color wheel substrate is disc-shaped, and several fan-shaped areas are distributed around the center of the color wheel substrate. Usually, each area needs to be coated with phosphor materials of different colors and different properties. ...

AI Technical Summary

Problems solved by technology

The traditional manufacturing process requires manual coating of the color wheel substrate, that is, the fluorescent pink wheel is first limited and fixed by a jig, and then the coating material is manually applied to the color wheel substrate by printing, dispensing or spraying. In general, the amount of coating material and the control of the coating range are all affected by manual operations. It is difficult to ensure the thickness of the phosphor coating and the uniformity of the coating material, as well as the shape, radian, and angle of the phosphor layer, resulting in The effect of phosphor coating is unstable and the coating efficiency is low, time-consuming, and product performance is poor

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