Powdered-coating processing device in preparation process of helical fluorescent lamp tube

Abstract

The invention discloses a powdered-coating processing device in the preparation process of a helical fluorescent lamp tube, which comprises a powdered-coating device and a drying device. The powdered-coating processing device is characterized in that the drying device comprises a first working platform provided with an oven, a cylindrical frame and a first divider for driving the frame to performintermittent rotation around a shaft; one part of the frame is surrounded by the oven, and the outer surface of the frame is provided with multiple groups of tube holding devices along the circumference; each tube holding device comprises three tube holding seats which are distributed along the axial direction and outwards extend along the horizontal radial direction; the head of each tube holding seat is provided with a tube holding clamp; each group of tube holding devices is provided with a drive mechanism for driving the tube holding seat to rotate around the shaft; a first detecting device and a positioning device are arranged on the first working platform; blowing mechanisms are arranged on the oven, and vacuum suction mechanisms are fixed on and surround the first working platform in the oven and correspond to helical lamp tubes to be processed on the tube holding clamps when the frame temporarily stops moving. The invention has higher automation degree and can effectively savefluorescent powder and greatly reduce the processing cost.

Description

Technical field [0001] The invention relates to a preparation device of a spiral fluorescent tube, in particular to a powder coating processing equipment in the preparation process of the spiral fluorescent tube. Background technique [0002] In the preparation process of the fluorescent tube, the powder coating process of the tube is an important process. In the existing lamp powder coating process, people lack sufficient understanding of the particularity of spiral fluorescent tubes, and often use the same equipment as U-shaped tubes for processing, and the consequences of this processing method are extremely easy to cause The deposition of fluorescent powder in the lamp tube, that is, the phenomenon of "dark shadow" in the lamp tube. This phenomenon has the negative effect of blocking and absorbing light, reducing the luminous flux output of the lamp tube, and also causing phosphor powder. Waste, increase the manufacturing cost of the tube. Someone has tried various powder c...

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Problems solved by technology

In the existing powder coating process of lamp tubes, people lack sufficient understanding of the particularity of spiral fluorescent tubes, and often use the same equipment as U-shaped lamp tubes for processing, and the consequence of this processing method is that it is very easy to cause The deposition of phosphor powder in the lamp tube, that is, the phenomenon of "black shadow" in the lamp tube, the generation of this phenomenon has the negative effect of blocking and absorbing light, reducing the output of the luminous flux of the lamp tube, and at the same time causing phosphor powder The waste increases the manufacturing cost of the lamp tube

Some people have tried various powder coating methods and prepared some powder coating processing equipment, but the basic principle of these methods and equipment is to rotate around the axis and use the principle of fluorescent powder to flow by its own weight to make the excess fluorescent powder flow out of the lamp tube , but this method often causes uneven coating of phosphor powder in the lamp tube, and accumulation of phosphor powder at the tube opening of the lamp tube

From the current equipment, there is no one that can effectively avoid this phenomenon, but can only be trimmed by manual scraping after the powder coating is completed, which not only increases the labor cost, but also causes a waste of phosphor powder.

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