The invention provides a folding wheel capable of automatically fixing a core wire based on rotating speed, and relates to the technical field of
welding rods. The folding wheel capable of automatically fixing the
welding core based on the rotating speed comprises a base, the top of the base is rotationally connected with a
machine body shell, a rotating shaft is fixedly installed in the
machine body shell, a spring is fixedly connected to the periphery of the rotating shaft, an
extrusion block is fixedly connected to the end, away from the rotating shaft, of the spring, and the periphery of the
extrusion block is movably connected with an electrifying clamp. The rotating speed of the rotating shaft is increased, so that the current in an
electromagnet is increased, a magnetic pole ball drives a sliding block to move, a moving rod drives an expansion plate to move through the cooperative use of a transmission rod and an air bag, the
diameter of the folding wheel is increased, the
welding cores cannot be overlapped, and the effect of rapid folding is achieved, and a swing rod is driven to move through rotation of the rotating shaft; and through cooperative use of a rolling wheel anda guide rod, the position of the core wire is kept still, and the effect of improving the working efficiency is achieved.