| 摘要 |
An automatic vacuum ink container and its ink supply valve device and vacuum piston device. The ink container comprises a container cylinder, an ink supply valve mounted at one end of the container cylinder for opening and closing the passage of the ink, and a vacuum piston, mounted at the other end of the container cylinder and provided with more than one exhaust hole, for exhausting air when packaging ink and for pushing ink toward the ink supply valve when supplying ink. The ink supply valve comprises a valve lid and a valve sleeve; the valve lid can be pushed by ink to move forward to form a space for dispensing ink; two sloping sealing faces are provided respectively around the top of the valve sleeve and on the inner wall of the top of the valve lid. The exhaust pores are set through the vacuum piston longitudinally. |
