| 摘要 |
The present invention relates to an inspection apparatus for checking whether a cap is properly screwed on a mouth of a bottle, such as PET bottle. The cap inspection apparatus includes: a plurality of imaging devices (5) configured to take images of a cap (1) and a mouth of a bottle (2) from multiple directions; and an inspection processor (7) configured to process the images taken by the imaging devices (5). The inspection processor (7) is configured to receive the images from the imaging devices (5), calculate, from the images, gap index values each indicating a magnitude of a gap between the cap (1) and a support ring (3) formed on the mouth of the bottle (2), calculate a sum of the gap index values, and determine whether the cap (1) is properly screwed on the mouth of the bottle (2) based on the sum. |
