| 摘要 |
The present invention pertains to a device that inspects whether a cap is correctly screwed onto the mouth of a container such as a PET bottle. A cap inspection device comprises a plurality of imaging devices (5) that acquire images, from multiple directions, of a cap (1) and a container (2) mouth, and an inspection processing unit (7) that processes the plurality of images acquired by the plurality of imaging devices (5). The inspection processing unit (7) receives images from each of the plurality of imaging devices (5), calculates, from the images, a plurality of gap index values indicating the size of a gap between the cap (1) and a support ring (3) formed on the mouth of the container (2), sums the plurality of gap index values, and determines, on the basis of the sum, whether the cap (1) is screwed correctly onto the mouth of the container (2). |
