Visual dispensing system and method for realizing high-precision dispensing by using system

Abstract

The invention provides a visual dispensing system and a method for realizing the high-precision dispensing by using the system. The visual dispensing system comprises a system support plate; the system support plate is provided with a glue barrel component, a module component and a camera component; the glue barrel component is fixedly connected to the system support plate through a glue barrel support base; the module component is fixedly connected to the system support plate through a module support frame; the camera component is arranged beside the glue barrel component, and is fixedly connected to the system support plate through a camera support base; a module mounting plate is fixedly connected to the module support frame; a grabbing driving mechanism is slidably arranged on the module mounting plate; and an optical filter component is fixedly connected to the end of the grabbing driving mechanism, and directly faces the glue barrel component. The visual dispensing system and themethod can realize the automatic control to the dispensing quality process.

Description

technical field [0001] The invention relates to the technical field of dispensing quality detection, in particular to a visual dispensing system and a method for realizing high-precision dispensing using the system. Background technique [0002] Glue dispensing is one of the main processes in the production process of LCD screens. Glue dispensing increases the reliability and stability of the LCD screen. However, since the overflow and lack of glue in the dispensing process will affect the quality of the product, it is necessary to test the product after dispensing. [0003] The existing detection methods mainly include manual sampling inspection, detection by photoelectric sensor and detection by visual image technology. Among them, the efficiency of manual sampling inspection is low, and the consistency of product characteristics and the stability of product quality cannot be guaranteed; using photoelectric sensor detection, through active light emission, reflection rece...

AI Technical Summary

Problems solved by technology

Among them, the efficiency of manual sampling inspection is low, and the consistency of product characteristics and the stability of product quality cannot be guaranteed; using photoelectric sensor detection, through active light emission, reflection reception, and threshold judgment, the detection area can only be a single point, and cannot The whole area of ​​dispensing is detected. In addition, due to the different thickness and material of the dispensing, the performance of the photoelectric sensor detection method is unstable and the failure rate is high; using visual image technology to detect, the whole dispensing area is imaged by light, and the image is transmitted To the computer memory, use the image processing method to automatically detect the dispensing effect. This method has relatively high stability and reliability. Therefore, at present, the visual image technology is mainly used to detect the products after dispensing.

[0004] However, in the production process of liquid crystal displays, when the glue used for dispensing is UV glue, and the color of the cured UV glue is similar to that of the product or is transparent, it is difficult to use visual image technology to detect and use traditional lighting methods. Obtain an image with clear contrast between the product and the glue, and then cannot distinguish the glue and background information normally, so it is impossible to judge the quality of the glue dispensing

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