| 摘要 |
A ring-mark printing device for identifying electrical cables includes a printer box having a feed axis and configured to pass an electrical cable along the feed axis. The printer box includes an ink shield including a concentrically arranged double structured tube. The double structured tube includes an outer tubular body, and an inner tubular body, the inner tubular body being held such that it can freely slide within the outer tubular body. The outer tubular body includes outer ink-orifices at positions facing marking drums. The inner tubular body also includes inner ink-orifices. By sliding the inner tubular body, an inner ink-orifice can be joined with an outer ink-orifice, so that the electrical cable is ready to be printed with ink ejected from the marking drum, or the inner orifice can be moved away from the outer ink-orifice, so that the electrical cable is impeded from printing. In this manner, production of substandard electrical cable is greatly reduced, and running rates of the production line is improved. Further, the operation process is suitably adapted to a small lot production.
|
