Cement bag opening corner folding device

Abstract

The invention discloses a cement bag opening corner folding device, and belongs to the technical field of cement bag opening folding devices. The device comprises a rack, a bottom plate and an upper bag sucking part, wherein the bottom plate is installed on the rack through a linear sliding table, an edgefold bag opening assembly and a corner folding assembly are installed on the bottom plate, a lower bag sucking part is installed on one side surface of the rack, and the upper bag sucking part is located right above the lower bag sucking part and connected with the rack through a supporting plate. In the process that edgefold bag opening plates extend into a cement bag, the bevel edges of the edgefold bag opening plates are always parallel to the upper edgefold and the lower edgefold of the cement bag, and the situation that when the edgefold bag opening plates make contact with the upper edgefold or the lower edgefold, the corners of the edgefold bag opening plates pierce into the upper edgefold or the lower edgefold of the cement bag is effectively avoided; an edgefold positioning plate A and an edgefold positioning plate B are used for positioning the upper edgefold and the lower edgefold of the cement bag, so that the upper edgefold and the lower edgefold of the cement bag are folded into the bag in a flush mode helpfully; and after the corners are folded, the edgefold positioning plate A and the edgefold positioning plate B get close to the middle to close a bag opening.

Description

technical field [0001] The invention relates to a device for folding the corners of the mouth of a cement bag, and belongs to the technical field of folding equipment for the mouth of a cement bag. Background technique [0002] Generally, when making and processing cement bags, the mouth of the bag will be opened first, and then the corners of one side of the bag will be folded inward to make an inwardly folded corner, which is convenient for filling cement in subsequent operations, and the cement bag mouth should be reserved The part folded into the cement bag. For this reason, the Chinese patent document that publication number is CN108162497A discloses a kind of cement bag folding device, and the cement bag bag mouth is lifted upwards to make the cement bag bag mouth open by suction cup, and cylinder B drives rack B to move, and rack B drives The transmission gear B rotates, the transmission gear B drives the rotating shaft to rotate, and the rotating shaft drives the ba...

AI Technical Summary

Problems solved by technology

However, before the cement bag is folded, the upper and lower folds at the mouth of the cement bag need to be pushed into the bag. Since the bag opening plate enters the cement bag by rotating 90 degrees, the bag is opened during the rotation. The sharp corners on the board are easy to pierce the upper or lower hem of the cement bag, causing the cement bag to be skewed, and even cause the cement bag to be detached from the suction cup, eventually causing the corner to fail

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