Continuous controllable preheating powder cylinder structure

The continuous controllable preheating powder cylinder structure comprises a cylinder body, a pushing plate, a driving part, a protective cover, an electromagnetic coil, a digital temperature sensor and a master control box, the pushing plate is slidably connected into the cylinder body, the driving part is fixedly arranged at the bottom of the pushing plate, the protective cover is arranged on the outer side of the cylinder body in a sleeving mode, and a heating cavity is defined between the cylinder body and the protective cover; more than two electromagnetic coils are arranged in the heating cavity, the digital temperature sensor is embedded in the inner side wall of the cylinder body, the master control box is fixedly arranged on the outer side of the protective cover, and an adjusting piece for adjusting the density of the electromagnetic coils is further arranged in the heating cavity. According to the powder cylinder structure capable of continuously and controllably preheating, the multiple electromag