Shoot core machine and the shell core machine along with the development of core technology and development, and core making process varies with the sand core binder. Sand core binder are mainly oil binder and synthetic resin binder, few have clay and water glass as binder. Synthetic resin binder is after the 1950 s have been used in casting production, before this, are all used oils binder or clay, sodium silicate binder, such as its core method is only for manual core or drum machine core, basically do not use the core and shell core machine, only core boxes, core board, core-making process and equipment. Only after synthetic resin adhesive is widely used, is the core equipment in the true sense. Using a variety of core making method, mainly 売 core type () method, the hot core box method, WenXin box method, cold core box method, give priority to. For decades, the hot core box 売 core (type) legal system core technology is widely used in mass production. In recent years, due to the environmental protection, the manufacturing cost, quality and production efficiency and other reasons, the method of hot core box is new to cold core box method. WenXin box method in recent years developed slowly 売 core method also a gradual decline in the proportion of use. Cold core box method and gas hard cold core box method and process and the cold core box method. Cold core box core of legal system because of its high efficiency, energy saving, high dimensional accuracy, low gas evolution, core box, long life, small deformation of the casting surface is bright and clean, high dimensional accuracy, casting sand core after play good dispersion, good adaptability and is widely applied, and its development momentum for the present. So, accordingly appeared various automation efficient shoot core machine and shell core machine.