Quantitative feeding device for refining furnace

The utility model discloses a quantitative feeding device of a refining furnace, which comprises a feeding hopper of the refining furnace, a quantitative mechanism, a feeding mechanism and a feeding mechanism, the feeding mechanism is arranged in the feeding mechanism; the feeding mechanism comprises a feeding cylinder and a storage cylinder; the storage barrel is connected with a feeding hopper of the refining furnace; the feeding barrel is arranged above the storage barrel; the quantifying mechanism comprises a controller, a torsion spring connecting sleeve, an overturning shaft, a weighing sensor and a weighing plate; the controller is fixedly mounted at the outer end of the feeding mechanism; the torsion spring connecting sleeves are symmetrically mounted on the inner wall of the storage barrel in pairs; the overturning shaft penetrates through the two sides of the weighing plate and is installed in the material storage barrel through a torsion spring connecting sleeve. The weighing sensor is mounted at t