A fluorescent glue conformal scraping device and scraping method for LED filament

A technology of LED filament and fluorescent glue, which is applied to the device for coating liquid on the surface, pre-treating the surface, coating, etc., can solve the problems of high cost and low efficiency, and achieve easy operation, simple device and equipment, and simple and efficient process Effect

Inactive Publication Date: 2017-06-13
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this requirement can be met by using the mold plastic sealing method, different molds are required to complete the plastic sealing process for certain different packaging forms, so the cost is high and the efficiency is not high

Method used

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  • A fluorescent glue conformal scraping device and scraping method for LED filament
  • A fluorescent glue conformal scraping device and scraping method for LED filament
  • A fluorescent glue conformal scraping device and scraping method for LED filament

Examples

Experimental program
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Effect test

Embodiment 1

[0041] like figure 1 , image 3 , Figure 4 and Figure 5 As shown, the present invention includes a machine platform 1, a bottom plate 3 that can slide along the X axis and a dispensing arm 2 that can slide along the Z axis are arranged on the machine platform 1, and a dispensing module that can move along the Y axis is arranged on the dispensing arm 2 . The dispensing module includes a dispensing head 4 and a scraper 5. The scraper 5 and the dispensing head 4 are of a split structure, and the scraper 5 is arranged behind the dispensing head 4; the dispensing head 4 is connected to the dispensing device. The projection of the scraping edge of the scraper 5 along its moving direction is a semicircle, and the surface near the moving direction at the bottom of the scraper is

[0042] The angle between the slope and the horizontal plane is 60°. There are two types of base plates 3 , one type of base plate has a flat surface, and the other type of base plate is provided with ...

Embodiment 2

[0048] like figure 1 , figure 2 , Figure 4 and Figure 5 As shown, the difference between this preferred embodiment and the first preferred embodiment is that the scraper 5 and the dispensing head 4 in this preferred embodiment are an integrated mechanism. A through hole penetrating up and down is provided at the center of the scraper 5; the through hole is connected with the dispensing device. The fluorescent glue is extruded on the LED filament 6 through the through hole.

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Abstract

The invention discloses a fluorescence gum shape preserving scraping coating device for an LED filament and a scraping coating method and relates to the technical field of LED illumination. The fluorescence gum shape preserving scraping coating device for the LED filament comprises a bottom plate which can be heated, a scraper with a specific contour shape and a dispensing head, wherein the scraper is arranged at the back part of the dispensing head and is capable of carrying out scraping coating formation on an effluent colloid and preserving the shape of the fluorescence gum under heating of the bottom plate. The fluorescence gum shape preserving scraping coating method for an LED filament comprises the following steps: utilizing the scraper with the specific contour shape to carry out shape preserving scraping coating on the uncured fluorescence gum on the surface of the LED filament, rapidly curing the colloid by virtue of heating, and forming a fluorescence gum coating layer with the specific contour shape. According to the fluorescence gum shape preserving scraping coating device and method disclosed by the invention, a novel method of 360-degree omnidirectional coating of the LED filament is realized. The fluorescence gum shape preserving scraping coating method is simple and efficient, is simple in device and equipment, easy to operate, high in efficiency, good in consistency of produced products and diversified in product form.

Description

technical field [0001] The invention relates to the technical field of LED lighting, in particular to a fluorescent glue shape-keeping scraping device and scraping method for high-quality LED filaments. Background technique [0002] Light-emitting diode (LED) is a solid-state semiconductor light-emitting device that can efficiently convert electrical energy into visible light. It has the advantages of environmental protection and long life. It is a new generation of green solid-state light source that is expected to replace incandescent lamps. However, at present, LED light sources are generally surface light sources, and it is impossible to obtain the 360° omnidirectional lighting effect of traditional incandescent lamps. LED device packaging and lighting manufacturing industries usually use two-dimensional arrays of LED chips to achieve 360° omnidirectional lighting, but it is difficult to achieve full coverage during the sealing process, resulting in a little blue light l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05C5/00B05C11/04B05D1/26B05D1/42B05D3/02
CPCB05C5/001B05C11/04B05C13/02B05D1/26B05D1/42B05D3/0254
Inventor 余彬海汤勇李宗涛陈光高单忠频
Owner SOUTH CHINA UNIV OF TECH
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