Lamp inspection mechanism and lamp inspection method for detecting foreign matter in large-capacity solution bottle

Abstract

The invention discloses a light inspection mechanism and a light inspection method for detecting foreign matters in a large-capacity solution bottle, and belongs to the technical field of medicine bottle detection equipment. The light inspection mechanism comprises a bottle body located between a light source system and an image acquisition assembly, and the light source system comprises a light source assembly and a background plate; the light source assembly is located above the position between the background plate and the bottle body; the light-emitting surface of the light source assembly faces downwards; the front surface of the background plate faces the bottle body; the image acquisition assembly comprises a camera aligned with the bottle body; the light source assembly at least comprises two light sources, namely a first light source and a second light source; the first light source is positioned on one side close to the background plate; the second light source is positioned on one side close to the bottle body; the second light source is lower than the first light source in intensity. According to the method, the interference of a liquid surface on detection can be effectively eliminated while the foreign matters such as cilia and white dots are detected, and the detection rate of the foreign matters in a large-capacity solution can be increased.

Description

technical field [0001] The invention belongs to the technical field of medicine bottle detection equipment, in particular to a light detection mechanism and a light detection method for detecting foreign matter in a large-capacity solution bottle. Background technique [0002] The detection of foreign objects such as cilia and white spots inside the large-capacity solution is a difficult problem for the light inspection machine. The reason is that, for such defects, the current light inspection machines on the market all adopt the optical inspection scheme based on the bottom light source. Under this solution, due to the mirror effect of the liquid surface, the light source will focus on the liquid surface, and the liquid surface itself is equivalent to a small light source; during the detection process, due to the large diameter of the bottle, the liquid surface will inevitably shake, which will This causes the liquid surface light source to reflect light to any area of ​​...

AI Technical Summary

Problems solved by technology

Under this solution, due to the mirror effect of the liquid surface, the light source will focus on the liquid surface, and the liquid surface itself is equivalent to a small light source; during the detection process, due to the large diameter of the bottle, the liquid surface will inevitably shake, which will Causes the liquid surface light source to reflect light to any area of ​​the entire bottle body, showing obvious random light interference on the image

After light interference and foreign matter are mixed together, it is difficult to distinguish, which is likely to cause false detection or missed detection

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