Apparent defect detection equipment for protective film of chip resistor and application method

Abstract

The invention discloses protective film appearance defect detection equipment for chip resistor. The equipment comprises a video camera, an industrial personal computer, a data storage unit, an identification unit, a judgment unit and an alarm unit, wherein the video camera is installed at an upper end of a chip resistor production line, the video camera is connected with the industrial personal computer through a data line, and the data storage unit, the identification unit, the judgment unit and the alarm unit are application software installed in an upper computer. The application method of the apparent defect detection equipment for the protective film of the chip resistor comprises five steps. The chip resistor protection film quality detection equipment can cover main quality detection items such as bumps, pits, all defects, partial defects, cracks and protection film material accumulation of the chip resistor protection film, and when a chip resistor protection film has a quality problem, a technician is prompted at the first time. The detection speed is high, detection precision is high, manpower is saved, and the detection quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of detection equipment and application methods, in particular to a detection equipment and application method for the appearance defects of the protective film of chip resistors. Background technique [0002] Chip resistors, that is, chip fixed resistors, are one of the metal glass glaze resistors. In the production of chip resistors, metal powder and glass glaze powder are mixed, and printed on the substrate by screen printing to make a finished product. It has the advantages of small size, light weight, suitable for reflow soldering and wave soldering, stable electrical performance, high reliability, low assembly cost, and can greatly save circuit space costs, making the design more refined. In order to ensure the normal use of the chip resistor, a protective film will be processed on the outer layer (mainly located on the upper end of the chip resistor). The protective film mainly functions as moisture-p...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the existing technology, artificially detecting the quality of the chip resistor protective film is not efficient, because the detected samples cannot cover all the chip resistors, and the detected data cannot objectively reflect the quality of all chip resistors. Effective application or the disadvantages of certain restrictions, the present invention provides an industrial camera installed at the upper end of the chip resistor production line, the industrial camera can detect the quality of the chip resistor protective film on the production line in real time, and use the image system to obtain product pictures. Using a large number of chip resistor protective film pictures as the image database, introducing the deep learning method of artificial intelligence, and using the artificial intelligence imitation human brain neural network algorithm, it can still accurately find the chip resistor protective film under interference and changeable conditions Various quality problems can cover the main quality inspection items such as protective film bulges, pitting, complete defects, partial defects, cracks, and accumulation of protective film materials, thereby achieving fast detection speed, high detection accuracy, saving labor, and ensuring detection A detection method for the appearance defect of the protective film of chip resistors that improves the economic benefits of the manufacturer

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