A circular belt transmission device for an automatic optical detection instrument for liquid crystal display defects

Abstract

The invention discloses a round belt conveying device of a liquid crystal display screen defect automatic optical detection instrument. The round belt conveying device comprises an air floating platein inclined arrangement, wherein a support frame is arranged at one side of the air floating plate; air outlet holes are distributed in the air floating plate; the support frame is connected with a base through a fixing plate; more than one liquid crystal display screen conveying assembly is in linear arrangement on the upper end surface of the base; the liquid crystal display screen transmissionassembly comprises two support seats vertically connected onto the upper end surface of the base; transmission shaft installing holes are formed in the support seats; a first bearing is arranged in the transmission shaft installing holes; a transmission shaft penetrates into the first bearing; one end, facing the fixing plate, of the transmission shaft is provided with a synchronous belt wheel; the other end of the transmission shaft is provided with a round belt wheel. The round belt conveying device is mainly used for transporting the liquid crystal display screen requiring optical detection; the transportation stability on the liquid crystal display screen is high; the optical automatic detection precision is favorably improved.

Description

technical field [0001] The invention relates to the technical field of optical detection equipment, in particular to a round belt transmission device for an automatic optical detection instrument for liquid crystal display defects. Background technique [0002] Liquid crystal display is a kind of flat-panel display, which is used for the screen display of televisions and computers. In order to ensure that the quality of the liquid crystal display meets the requirements, people need to test the processed and produced liquid crystal display. At present, automatic Optical inspection equipment is used to detect whether there are defects in the LCD screen. The LCD screen to be inspected passes through the inspection area under the transport of the transport device. The optical inspection equipment first conducts a rough inspection of the LCD screen. If the rough inspection finds a problematic position, it will be marked. Then the liquid crystal display is transported from the rou...

AI Technical Summary

Problems solved by technology

[0002] Liquid crystal display is a kind of flat-panel display, which is used for the screen display of televisions and computers. In order to ensure that the quality of the liquid crystal display meets the requirements, people need to test the processed and produced liquid crystal display. At present, automatic Optical inspection equipment is used to detect whether there are defects in the LCD screen. The LCD screen to be inspected passes through the inspection area under the transport of the transport device. The optical inspection equipment first conducts a rough inspection of the LCD screen. If the rough inspection finds a problematic position, it will be marked. Then the liquid crystal display is transported from the rough inspection place to the fine inspection place by the conveying device for detailed inspection, and the position marked during the rough inspection will be carefully inspected at the fine inspection place, but due to the poor transportation stability of the existing conveying device , the liquid crystal display screen will have a large displacement when it is transported from the rough inspection place to the fine inspection place, which will cause the location of the fine inspection to be inconsistent with the location of the problem found in the rough inspection, resulting in a decrease in the accuracy of optical automatic inspection

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