The utility model belongs to the technical field of blow molding, in particular to an air blowing device of a hollow molding machine, comprising a blow molding machine; one end of the blow molding machine is provided with an air inlet pipe, and one end of the air inlet pipe is fixedly provided with a first filter plate. The utility model is characterized in that: a sliding block is slidably fitted in a sliding groove formed around the inside of the air inlet pipe, a spring column is arranged around the inside of the air inlet pipe, one end of the spring column penetrates through the inner wall of the air inlet pipe and is connected with one end of the sliding block, one side of the sliding block is fixedly provided with a second filter plate, dredging rods are respectively arranged around one side of the first filter plate and one side of the second filter plate, connecting rods are symmetrically arranged at the edge of the other side of the second filter plate, and an arc plate is arranged at the other end of the connecting rods. When the air inlet pipe stops air intake, the utility model can drive the second filter plate to move through the reset of the spring column, cooperate with the dredging rods to automatically dredge the blocked filter holes, and reduce the downtime waste required for subsequent cleaning of the filter screen.
Country Code: CN
Application Number: CN202320371575.9
