Online cleaning, without cooling and disassembly of the mold, to avoid the chemical cleaning method of mold corrosion and damage, mechanical cleaning method of mold mechanical damage and scratches, and repeated loading and unloading lead to mold precision decline and other shortcomings. Crucially, the two most time-consuming steps of disassembling the mold and waiting for the mold to cool down are eliminated, both reducing downtime by around 80-95%.