Coating process and equipment for spiral fluorescent tube

Abstract

The invention is concerned with the spiral light-tube bepowder equipment and the technics that designs for the bepowder technics of the simulative U-shape pipe. The bepowder equipment comprising with: the framework, the main axis fixing in the middle of the framework, and the circles roasting area setting on the revolution turntable of the framework; the revolution turntable that rotates around the main axis, the revolution electrical machinery that drives the rotation of the revolution turntable, several working-location head setting on the revolution turntable; the rotation turntable setting on the revolution turntable that rotates around the main axis, the rotation electrical machinery setting on the revolution turntable that drives the rotation of the rotation turntable; every working-location head sets a rotating axis with the friction wheel, the front end of the rotating axis fixes the spiral light-tube and the fan opening. The bepowder technics includes the roast and fan technics, the characteristic is: the two opening of the spiral light-tube is downward and rotates continuously by a definite leaning angle during the spiral light-tube bepowder process.

Description

technical field [0001] The invention discloses a powder-coating process and equipment for a spiral lamp tube without powder accumulation. Background technique [0002] At present, domestic spiral lamp tube powder coating generally adopts: fix the lamp tube vertically on the transmission chain of the linear machine, let the lamp tube pass through different temperature zones in turn, and blow in a certain amount of wind, and wait for the powder slurry to dry. The phosphor powder is attached to the inner wall of the lamp tube. Under the action of gravity, the slurry gathers at the inner bottom of the lumen. Due to the relationship between the lead angle of the lamp tube, the slurry flows out slowly, and thick spots are easily formed on the bottom of the lumen. Therefore, there are following deficiencies in this production technique and equipment: [0003] 1. Since the lamp tube is fixed on the chain, the excess powder slurry can only flow out along the spiral under the action...

AI Technical Summary

Problems solved by technology

The existence of thick spots not only affects the appearance of the lamp tube and wastes phosphor, but also prevents visible light from passing through and affects the luminous efficiency of the lamp tube

[0004] 2. The traditional powder-coated blowing pipe is distributed in a straight line, so that the lamp tube passing through the blowing port is blown to the wind, so that the utilization rate of blowing is low, and at the same time, the unused blowing also takes away a lot of heat, increasing energy consumption

[0005] 3. It covers a large area. The length of traditional powder coating machines is generally 9-11m, and the requirements for the site are relatively high.

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