Efficient feeding punching machine for U-shaped bolt production

The utility model discloses an efficient feeding punching machine for U-shaped bolt production. The utility model belongs to the technical field of punch equipment. The device comprises a base, a vertically-arranged stamping knife is connected to the base in a sliding mode. The stamping knife can slide in the vertical direction, a feed groove matched with the stamping knife is formed in the position, corresponding to the lower portion of the stamping knife, of the base, a limiting groove perpendicular to the feed groove is formed in the position, close to the top of the feed groove, of the topface of the base, and the middle of the limiting groove is communicated with the top of the feed groove. The position, corresponding to one end of the limiting groove, of the base is fixedly connected with a feeding pipe which is obliquely arranged upwards from one end close to the end part of the limiting groove to the direction far away from the limiting groove; and a feeding mechanism capableof automatically feeding i