The yield of parts is the life of injection molding enterprises. However, with the long-term operation of the equipment, all kinds of dirt condenses on the surface of the mold core.and the cooling water path of the mold, which not only damages the service life of the mold, but also makes it difficult to guarantee the yield of parts. However, cleaning by all manual means not only has poor results, but also requires a lot of manpower, material resources and time, which has a great impact on production.