Multi-cavity hot runner structure

The utility model relates to a multi-cavity hot runner structure which comprises a hot flow plate, a hot nozzle is fixedly installed at the bottom of the hot flow plate, an installation hole is formed in the back face of the hot flow plate, a bolt is connected to the back face of the hot flow plate in a threaded mode, a flow dividing pipe is fixedly installed in the hot flow plate, and a heating ring is fixedly installed in the hot nozzle. And a pushing mechanism is arranged in the hot nozzle. According to the multi-cavity hot runner structure, an output shaft of a driving motor drives a transmission rod to rotate through a transmission assembly, a pushing plate can rotate during rotation, and the pushing plate can move towards a flow dividing pipe on one side of a buffer spring, so that the flow dividing pipe shakes, and therefore, when plastic particles in a solid-liquid state flow, the plastic particles in the solid-liquid state are prevented from flowing; and meanwhile, solid and liquid plastic particles