Device and method for automatically cleaning fiber mat at pipe orifice of suction-casting ceramic riser pipe

The invention relates to the technical field of vacuum casting, in particular to an automatic cleaning device for a suction casting ceramic riser tube opening fiber mat. The cleaning and shoveling mechanism is suitable for cleaning and shoveling fiber mats at the orifices of the riser tubes; the blocking mechanism is suitable for blocking the orifice of the riser tube; and the blowing mechanism is suitable for blowing away the cleaned and shoveled fiber mat from the orifice of the riser tube. The automatic cleaning method for the suction-casting ceramic riser tube orifice fiber mat adopts the cleaning device and comprises the following steps: firstly, adjusting the position of the machine base to enable the annular pipeline to be matched with the suction-casting boss; the plug plugs the orifice of the riser tube; the cleaning shovel mechanism is used for tearing and cleaning the fiber mat from the orifice of the riser tube; the blowing mechanism blows fiber residues at the orifice of the riser tube into the i