Longitudinal edge folding and ironing-seaming method and mechanism of packaging bag

Abstract

The invention relates to a longitudinal edge folding and ironing-seaming method of a packaging bag. The longitudinal edge folding and ironing-seaming method of the packaging bag comprises the following steps that: after bag materials are conveyed in an edge pressed way, the left longitudinal bag edge material of the bag materials enters a gap between a left edge folding plate and a right edge folding plate along the left edge folding plate, is pressed by left edge folding pressing wheels and slides downwards, and the right longitudinal bag edge material of the bag materials enters the gap between the left edge folding plate and the right edge folding plate along the right edge folding plate, is pressed by right edge folding pressing wheels and slides downwards; when the left longitudinal bag edge material and the right longitudinal bag edge material slide, an ironing-seaming pressing wheel is driven to roll, the ironing head of an ironing-seaming device irons and seams the edge-folded left longitudinal bag edge material and the edge-folded right longitudinal bag edge material which are vertically and crossly overlapped on the ironing-seaming pressing wheel, and the ironing head rotates when the ironing head conducts ironing and seaming operation to enable the bag materials to slide smoothly; and finally, the packaging bag with longitudinal bag edges which are ironed and seamed are produced, wherein the longitudinal bag edges are firmly bonded and are difficult to tear off. The packaging bag produced by adopting the method has higher bonding strength and better quality, so that the service life of the packaging bag is prolonged and the consumption cost is reduced. Besides, the invention additionally provides a longitudinal edge folding and ironing-seaming mechanism of the packaging bag for realizing the longitudinal edge folding and ironing-seaming method of the packaging bag.

Description

technical field [0001] The invention relates to a fully automatic bag-making method and bag-making equipment, in particular to a packaging bag folding and ironing method and its mechanism. Background technique [0002] At present, the fully automatic (non-woven fabric) bag making machine is a three-dimensional bag, a vest, etc., which are processed by conveying, finishing (or called edge pressing, edge inserting), ironing, cutting, and sealing of the roll-type non-woven fabric. Non-woven bag-making automatic equipment in the form of bags (shopping bags), etc., the three-dimensional bags and vest bags produced by the two longitudinal bag edges are simply overlapped and ironed on the upper and lower layers, resulting in poor bonding strength. Poor quality, easier to be torn, torn, resulting in unnecessary waste. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcomings, and provide a method and mechanism for long...

AI Technical Summary

Problems solved by technology

[0002] At present, the fully automatic (non-woven fabric) bag making machine is a three-dimensional bag, a vest, etc., which are processed by conveying, finishing (or called edge pressing, edge inserting), ironing, cutting, and sealing of the roll-type non-woven fabric. Non-woven bag-making automatic equipment in the form of bags (shopping bags), etc., the three-dimensional bags and vest bags produced by the two longitudinal bag edges are simply overlapped and ironed on the upper and lower layers, resulting in poor bonding strength. Poor quality, easy to be torn and torn, resulting in unnecessary waste

Images