Cable shielding aluminum foil unwinding device

The utility model relates to the technical field of cable production equipment, in particular to a cable shielding aluminum foil unwinding device which can reduce the shaking amplitude of a tray in the unwinding process. Comprising a support, a workbench fixed to the top of the support, at least one tray assembly arranged on the workbench and at least one vertical guide roller located on the outer side of the tray assembly. The tray assembly comprises a core shaft vertically installed on the workbench through a bearing and a tray rotationally installed on the core shaft and located above the workbench, the tray rotates along with the core shaft, the lower end of the core shaft penetrates to the position below the workbench and is provided with a brake assembly, and a sheet-shaped iron ring coaxial with the tray is fixed to the bottom of the tray. At least three supporting columns arranged around the mandrel are fixed to the workbench, the supporting columns correspond to the sheet-shaped iron rings up and dow