Heat bottom sealing technology and device of three-in-one lining bags

Abstract

The invention relates to a heat bottom sealing technology and device of three-in-one lining bags. The heat bottom sealing technology and the heat bottom sealing device can seal the bottoms of the three-in-one lining bags. The heat bottom sealing technology comprises the steps of stacking the to-be-sealed three-in-one lining bags at the foremost end of the device; conveying the three-in-one lining bags to the device, and arranging positions of the three-in-one lining bags, so as to enable all the bottom edges of the three-in-one lining bags to align to one straight line; carrying out heating and press fit heat bottom sealing on bottom openings of lining films of the three-in-one lining bags; sewing the bottom openings of the three-in-one lining bags, wherein the sewing positions correspond to the heat sealing positions of lining film bags; and collecting the three-in-one lining bags subjected to treatment in the steps. The heat bottom sealing device comprises a stacking machine, an arrangement machine, a lining film heat bottom sealing machine, a sewing machine, a quick conveying machine and a bag collecting machine, wherein the stacking machine, the arrangement machine, the lining film heat bottom sealing machine, the sewing machine, the quick conveying machine and the bag collecting machine are distributed in the linear direction. According to the heat bottom sealing technology and the heat bottom sealing device, production efficiency can be effectively improved, and powder-like cargo can be prevented from leaking at the bottom openings of the bags.

Description

technical field [0001] The invention relates to a bag-making process and equipment capable of sealing the bottom of a three-in-one liner bag with an inner lining film and sewing the bottom opening of the three-in-one liner bag, in particular to a heat-sealing bottom process and equipment for a three-in-one liner bag . Background technique [0002] The three-in-one liner bag structure is composed of three-in-one paper-plastic composite bag (outer bag) and inner liner film. There are two ways to seal the bottom of the traditional three-in-one liner bag: one is to cover the inner and outer bags separately and put them together; Lining bag piece, the bag piece is directly used for sewing the back cover. [0003] The disadvantages of the above-mentioned scheme are: the implementation process of scheme one is time-consuming and labor-intensive, and the problems of low efficiency and high cost are caused by the inability to realize automatic production; although the efficiency ca...

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Problems solved by technology

[0003] The disadvantages of the above-mentioned scheme are: the implementation process of scheme one is time-consuming and labor-intensive, and the problems of low efficiency and high cost are caused by the inability to realize automatic production; although the efficiency can be improved in scheme two, when the powdery goods are in full bloom, sewing cannot The bottom opening of the lining film is tightly sealed, resulting in powdery goods leaking from the gap at the bottom opening of the bag and the pinholes formed by sewing

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