Material vacuumizing and exhausting device for aluminum oxide ceramic tube production

The utility model discloses a material vacuumizing and exhausting device for aluminum oxide ceramic tube production, which comprises a charging barrel, an ejector block is connected in the charging barrel in a sliding and sealing manner, an ejector head is arranged at one port of the charging barrel, a filter pad is arranged in the ejector head, an exhaust pipe is arranged at the top of the ejector head, and the exhaust pipe is connected with vacuumizing equipment through a pipeline. A hydraulic cylinder is arranged at the end, away from the ejector head, of the charging barrel, the hydraulic cylinder and the charging barrel are coaxially arranged, and the telescopic end of the hydraulic cylinder extends into the charging barrel and is connected with the ejector block. According to the utility model, gas mixed in a wet material can be discharged under the simultaneous action of extrusion and vacuumizing of the top block, so that the material becomes more compact; the overall structure is simple, operation is