Bag pre-opening device

The utility model relates to a bag pre-opening device which comprises a conveying belt used for conveying a bag body and a suction cup mechanism arranged at one end of the conveying belt, and the suction cup mechanism comprises a plurality of upper suction cups and a plurality of lower suction cups. The lower suction cups are arranged on the lower side of the bag body and used for tightly sucking the lower side of a bag opening of the bag body. The upper suction cups are arranged on the upper side of the bag body and used for tightly sucking the upper side of a bag opening of the bag body. The upper sucking disc and the lower sucking disc can be close to or far away from each other in the vertical direction; by arranging the bag pre-opening device, the bag opening of the bag body is opened by a certain size in advance, and the bag opening mechanism can open the bag conveniently, so that the bagging time is shortened, the bagging efficiency is improved, and the production cost is saved. 本实用新型涉及一种预开袋装置，包括用于输送袋体