Spraying equipment for LED display screens without board edges

Abstract

The invention belongs to spraying equipment, and provides spraying equipment for LED display screens without board edges. The spraying equipment comprises a transmission gear, a conveying device, a spraying device, an air draft device, a drying device and a control system. The transmission gear and the various devices can harmoniously run under the control of the control system, the transmission gear comprises two parallel transmission chains, each transmission chain comprises a plurality of inner chain sheets, outer chain sheets, hinge pins and rolling shafts, chain teeth are arranged on the outer sides, which are close to the to-be-painted LED display screens without the board edges, of the outer chain sheets of the various transmission chains, and two ends of each to-be-painted LED display screen without the board edges are respectively supported by the various corresponding chain teeth on the two transmission chains. The spraying equipment has the advantages that circuit boards can be ejected and transported by the aid of the chain teeth, and accordingly the painting efficiency can be improved by 30%; the LED display screens can be painted by the aid of the spraying device, accordingly, the painting quality can be greatly improved, and damp-proof, mildew-proof and dustproof paint can be saved by 20%; the paint can be sprayed on the LED display screens without auxiliary jigs, and accordingly the spraying equipment is low in production and material costs.

Description

technical field [0001] The invention belongs to painting equipment, and more specifically relates to a painting equipment for LED display screens without board edges. Background technique [0002] At present, the LED display circuit board needs to be coated with three-proof paint in the production process to achieve the "three-proof" effect of moisture-proof, mildew-proof, and dust-proof. However, due to the current ultra-thin and lighter design, the current LED display circuit boards do not have reserved board edges, so there are many bottlenecks in the coating of conformal paint. Since there is no board edge, it is inconvenient to use online automatic spray painting, and most of them use manual spraying, but there are many problems in manual spraying: low efficiency, poor quality, large occupied area, and poor spraying environment causing pollution. Although some manufacturers currently use fixtures to realize online painting of edgeless LED displays, there are also the f...

AI Technical Summary

Problems solved by technology

Since there is no board edge, it is inconvenient to use online automatic spray painting, and most of them use manual spraying, but there are many problems in manual spraying: low efficiency, poor quality, large occupied area, and pollution caused by poor spraying environment

[0003] 1. The installation of the fixture is cumbersome. Before spraying, the edgeless LED display is installed on the fixture. After spraying and drying, the fixture needs to be removed, which is time-consuming and laborious;

[0004] 2. For the edgeless LED display, the paint is also sprayed on the fixture. After the fixture is dried, the paint is not easy to clean. The accumulated paint after long-term use will make the fixture scrapped and the cost is high;

[0005] 3. Spray the paint onto the transmission device at the same time as the edgeless LED display. Generally, the transmission device does not have a cleaning function. After long-term use, the transmission function of the transmission device will gradually fail, and the cost of repairing and replacing the transmission device is high.

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