The utility model relates to a mold clamping structure of an injection blow molding machine, comprising a master cylinder, a slave cylinder is respectively arranged on both sides of the master cylinder, one end of the master cylinder and the slave cylinder is connected with a table plate, and a pre-fill valve is connected to the master cylinder. By arranging one master cylinder and two slave cylinders, under the same conditions of oil inlet pressure and flow rate, the slave cylinders have a small cylinder diameter, fast running speed and small force, while the master cylinder has a large cylinder diameter, large force and slow running speed. They can be adjusted respectively according to different states during mold clamping, reducing oil consumption and improving running speed. The utility model has a reasonable design and can be popularized on a large scale.

Country Code: CN

Application Number: CN201521008112.8