Pressing mechanism of uncoiling machine

The utility model discloses an uncoiler hold-down mechanism which structurally comprises a supporting seat, an operating frame, an electric control cabinet, a control console, a hold-down mechanism, an adjusting box, a safety valve, a steel coil groove and a dust cleaner, the dust cleaner is arranged at the position of a frame groove of the steel coil groove, an embedded frame is stably installed, and an arranged cleaning brush is in contact with the ground in a supporting mode. When the dust collection pump is powered on to work, generated negative pressure enables surrounding air to be sucked into the ventilation cavity and the conduction groove, dust, dirt and other small particles are included, the sucked air is filtered through the air filtering plate, large-particle steel scraps, dust and other substances are filtered out, only clean air passes through, and the environment cleaning effect is achieved; and protection on workers can be effectively improved, an anti-overflow layer has the function of block