An integrated packaging bag with upper and lower films and its processing equipment and method

Abstract

The invention discloses an integrated packaging bag with an upper and lower film. The bag body structure of the packaging bag includes an upper film, a lower film, a bottom sheet and a side organ. The upper film, the lower film and the bottom sheet are One-piece construction; the bottom panel is positioned between the upper and lower membranes. Its beneficial effects are: the technology described in the present invention is an integrated structure of the upper film, the lower film and the bottom sheet, without cutting, reducing the cutting process and reducing the loss of film materials; in the integrated structure, the upper film, the bottom sheet, and the lower film There is no secondary packaging with the bottom sheet material, which is beneficial to enhance the strength of the bag body and increase the service life; the technical equipment of the present invention has simple structure, convenient operation and high applicability.

Description

technical field [0001] The invention relates to the field of packaging bag processing machinery, in particular to a packaging bag with an integrated upper and lower film, as well as equipment and a processing method for processing the packaging bag. Background technique [0002] Packaging bags refer to bags used to pack various supplies, which make the goods convenient to transport and store during the production and circulation process, and are widely used in daily life and industrial production. Traditionally, the upper film, lower film and bottom sheet of the packaging bag are an independent split structure or the lower film and the bottom sheet are integrated and separated from the upper film. Under this structure, the separation between the film and the film passes through The ironing method is fastened, and the firmness and reliability of the ironing place are low, which may easily cause the rupture of the bag body. [0003] Therefore, those skilled in the art are com...

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Problems solved by technology

[0004] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide an integrated packaging bag with upper and lower films and its processing method and equipment to solve the problem of poor firmness of the joints of the film materials of the packaging bag body.

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