Bag making device

Abstract

The invention discloses a bag making device. The bag making device comprises a folding forming mechanism, a flattening mechanism and a sealing mechanism which are sequentially arranged, wherein the flattening mechanism comprises a fixed rack (1), fixed shafts and a plurality of rollers (2) which sleeve the outer surfaces of the fixed shafts and rotate by taking a length direction as an axis, and when a bag film to be flattened is sequentially and alternately attached to the outer surfaces of the plurality of rollers, the two ends of the fixed shaft of at least one roller are fixedly connected with movable rods (3) and the movable rods are connected to the fixed rack. By adopting the design of sequentially and alternately attaching the bag film to be flattened to the outer surfaces of the plurality of rollers, enabling the two ends of the fixed shaft of at least one roller to be connected with the movable rods and connecting the movable rods to the fixed rack, the roller can realize upward and downward displacement according to the tightness of the bag film to be flattened, and bag bodies are prevented from being deformed or ruptured due to too large tension or the bag bodies cannot be effectively folded due to too small tension.

Description

technical field [0001] The invention relates to the field of bag processing equipment, in particular to a bag making device. Background technique [0002] In the process of bag body preparation, especially in the bag body preparation process similar to paper-plastic composite bags, it is often necessary to press and fold the bag body from the film into the required shape before sealing and other operations. In the process of creasing, it often cannot achieve the desired shape at one time, so it is necessary to flatten the crimped bag body in the later stage to further compact the creases and stabilize its shape. In the process of creasing, it is often necessary to give it a certain amount of pulling force to compact its creases, and if the pulling force is too large, the bag body will be deformed or broken. desired compaction effect. [0003] Therefore, it is necessary to provide a method that can effectively compact the creases on the bag body during the preparation proce...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned prior art, the purpose of the present invention is to overcome the need to compact the creases of bags similar to paper-plastic composite bags in the prior art during the preparation process, and in the transfer process, the tightness of the transfer is often difficult. Different, so that it often causes the bag body to deform or break due to excessive tension, and the bag body is always in a slack state due to too small tension, so that the required compaction effect cannot be obtained, thereby providing a method that can be effectively used in the preparation process. Compact the creases on the bag body to stabilize the shape of the bag body, and adjust the tension according to the actual situation to avoid deformation or breakage of the bag body due to excessive tension force, or the bag body cannot be effectively crimped due to too small tension force bag making device

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