Mould locking structure of intelligent infrared welding equipment

The utility model relates to a mold locking structure, in particular to a mold locking structure of intelligent infrared welding equipment, the mold locking structure is installed on an upper mold frame through a mold locking installation plate, the mold locking structure comprises a lock seat, a fixed plate, an insertion block air cylinder, an insertion block and a retaining air cylinder, the fixed plate is fixedly installed on the mold locking installation plate, and the insertion block air cylinder is installed on the lock seat. The lower end of the lock seat sequentially penetrates through the fixing plate and the mold locking mounting plate to be fixed to a mold, the insertion block air cylinder is fixedly arranged on the mold locking mounting plate, the output end of the insertion block air cylinder is connected with the insertion block, a lock groove is formed in the upper portion of the lock seat, the insertion block air cylinder drives the insertion block to be connected with the lock groove in a cla