| 摘要 |
PROBLEM TO BE SOLVED: To improve an inspection machine for a printed matter such as securities.SOLUTION: The inspection machine includes a supplier for supplying printed sheets; first, second and third sheet inspection units, and first and second transfer cylinders. The first inspection unit includes: a first inspection cylinder, first illumination means and a first camera, and the second and third inspection units are configured in the same way, and the first transfer cylinder, each inspection cylinder and the second transfer cylinder are installed in a state that they are directly brought into contact with each other, and each inspection unit and each transfer cylinder are arranged such that the sheets are extracted from each inspection cylinder only when inspection is completed by each inspection unit, and the first transfer cylinder, each inspection cylinder and the second transfer cylinder are arranged in a zigzag form such that the conveyance length of the sheets can be made optimal as predetermined sheet length between the input/output positions of the sheets, and the conveyance length of the sheets on each inspection cylinder is a little longer than the length of the sheets to be inspected. |
