Ball guide type medium-package electronic scale

The utility model discloses a ball guide type tundish electronic scale comprising a weighing device, the weighing device comprises an upper cylinder body, a weighing sensor, a lower cylinder body, an outer spacing ring and an inner spacing ring, the weighing sensor is arranged between the upper cylinder body and the lower cylinder body, the outer spacing ring is fixed with one of the upper cylinder body and the lower cylinder body, and the inner spacing ring is fixed with the other of the upper cylinder body and the lower cylinder body. The inner limiting ring is fixed to the other one of the upper barrel and the lower barrel, a plurality of vertically-arranged outer guide grooves are formed in the inner side wall of the outer limiting ring, a plurality of vertically-arranged inner guide grooves are formed in the outer side wall of the inner limiting ring, the outer guide grooves correspond to the inner guide grooves in a one-to-one mode, and the corresponding outer guide grooves and inner guide grooves form