Pass-type valve spring shot blasting strengthening machine

The utility model discloses a through-type valve spring shot blasting strengthening machine which comprises a strengthening rack and a shot blasting machine blasting head, and relates to the technical field of shot blasting strengthening machines. According to the through-type valve spring shot blasting strengthening machine, the elastic block is arranged in the strengthening machine frame, and the spring is fixedly connected between the elastic block and the strengthening machine frame, so that the elastic block can rebound for shot blasting and return to the original shape when being impacted by shot blasting, and shot blasting impact force can be guaranteed to gather a spring position as a central point; the stress balance of the spring is guaranteed, the spring is prevented from moving out of a gap between the roll shafts, if the spring moves to the position between the roll shafts and the elastic block, the elastic block can bounce under the action of shot blasting, the bouncing spring can be automatical