Edge covering equipment for manufacturing pneumatic valve spring

The utility model relates to the technical field of pneumatic valve spring manufacturing, and discloses an edge covering device for pneumatic valve spring manufacturing, which comprises a device main body, convex supporting plates are transversely and additionally arranged at the central positions of the upper part and the lower part of the right side of the device main body, and a hydraulic cylinder is transversely arranged at the central position of the top of each convex supporting plate; and piston rods are longitudinally additionally arranged at the telescopic ends of the center positions of the bottoms of the hydraulic cylinders, the bottom ends of the piston rods penetrate through the corresponding convex supporting plates, extend downwards and are connected with U-shaped transverse plates, pressing boxes are transversely installed under the bottoms of the U-shaped transverse plates, and pressing rollers are vertically additionally arranged at the center positions and the two sides of the inner walls o