Automatic bag-making system for plastic three-dimensional bag with square bottom bag clamping patch

Abstract

The invention relates to an automatic bag-making system for a plastic three-dimensional bag with a square bottom bag clamping patch. A patch positioning feeding device and a turning folding device areinstalled on the front part of a main machine frame of the automatic bag-making system in sequence. A single side edge ironing-closing device, two side edge infolding devices and a bottom opening device are installed on the main machine frame and on the side edge of the turning folding device in sequence, and a mechanical hand patch drive device is installed on the middle part of the main machineframe. A bottom patch folding device and a bottom ironing-closing device are installed on the main machine frame and on the side edge of the bottom opening device in sequence. The automatic bag-making system for the plastic three-dimensional bag with the square bottom bag clamping patch sequentially completes automatic forming processing work such as positioning feeding, turning folding, single side ironing-closing, two side edge infolding, bottom opening, bottom patch folding, bottom ironing-closing and mechanical hand clamping conveying of the plastic three-dimensional bag patch. The adhesion firmness and effective rapid forming for follow-up bag-making are enhanced, the plastic three-dimensional bag with the square bottom bag clamping patch is made, and the speed, the stability and theyield of three-dimensional bag bag-making are improved.

Description

technical field [0001] The invention relates to packaging machinery, in particular to a system for making square-bottomed three-dimensional bags. Background technique [0002] At present, non-woven packaging bags have developed various styles of bags: punching bags, handbags, vest bags, zipper bags, three-dimensional bags, etc., most of which are already high-speed automated production. Plastic bags also have square bottom three-dimensional bags, square bottom three-dimensional bags with patches, etc., but except for the semi-automatic operation of the handle and bottom ironing, the others are all made by hand folding and entraining patches (reinforced paper). The efficiency is low, the labor cost is high, and the molding quality of the square bottom plastic three-dimensional bag cannot be guaranteed. Not to mention the fully automatic processing of plastic three-dimensional bags with patches entrained on the square bottom, such as single-side positioning and ironing, inwar...

AI Technical Summary

Problems solved by technology

Plastic bags also have square bottom three-dimensional bags, square bottom three-dimensional bags with patches, etc., but except for the semi-automatic operation of the handle and bottom ironing, the others are all made by hand folding and entraining patches (reinforced paper). Low efficiency, high labor costs, and the molding quality of square bottom plastic three-dimensional bags cannot be guaranteed

Not to mention the fully automatic processing of plastic three-dimensional bags with patches entrained on the square bottom, such as single-side positioning and ironing, inward folding of both sides, opening of the square bottom, folding of the square bottom patch in half, and ironing of the square bottom, which affects the three-dimensional bags. Especially the forming firmness and production efficiency of square bottom plastic three-dimensional bags

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