Plastic bag automatic flanging device

Abstract

The present invention provides a plastic bag automatic flanging device. The plastic bag automatic flanging device comprises transport rollers, a staggered flanging mechanism, racks, a first bag mouth folding mechanism, a second bag mouth folding mechanism, a winding reel and a driving motor; the driving motor drives the winding reel to wind plastic bags and provides traction power for conveying the plastic bags on the transport rollers; the racks comprises a first rack body and a second rack body; the staggered flanging mechanism is fixed on the first rack body; and the first bag mouth folding mechanism for folding a bag mouth at one side of the plastic bag and the second bag mouth folding mechanism for folding a bag mouth at the other side of the plastic bag are disposed on the second rack body. Compared with the prior art, according to the staggered flanging mechanism, the first bag mouth folding mechanism and the second bag mouth folding mechanism of the plastic bag automatic flanging device, the single-layer plastic film at the bottom of the plastic bag and two layers of plastic films at the bag mouths of the plastic bag can be simultaneously and automatically flanged respectively, so that production efficiency is high, folding operation is automatic, and folding effect is good.

Description

technical field [0001] The invention relates to the technical field of plastic bag manufacturing, in particular to an automatic folding machine for plastic bags. Background technique [0002] In the prior art, when cutting the bottom of a plastic bag, the two-layer plastic film of the plastic bag is often cut off, and then all the double-layer plastic film at the bottom of the bag is folded. In order to avoid cutting and blanking, and to save materials, The bottom of the plastic bag adopts the split-layer cutting technology. After the split-layer cutting, only one layer of plastic film needs to be folded. However, there is no equipment suitable for folding the single-layer plastic film after the split-layer cutting in the prior art, and the existing The hemming equipment has a single function and cannot hem the bottom and mouth of the bag at the same time, resulting in low production efficiency. Contents of the invention [0003] The object of the present invention is to ...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, when cutting the bottom of a plastic bag, the two-layer plastic film of the plastic bag is often cut off, and then all the double-layer plastic film at the bottom of the bag is folded. In order to avoid cutting and blanking, and to save materials, The bottom of the plastic bag adopts the split-layer cutting technology. After the split-layer cutting, only one layer of plastic film needs to be folded. However, there is no equipment suitable for folding the single-layer plastic film after the split-layer cutting in the prior art, and the existing The function of the folding equipment is single, and it is impossible to fold the bottom and mouth of the bag at the same time, and the production efficiency is low

Images