Slant clip soft-package production method and special die thereof

Abstract

The invention relates to a method and a special mould for manufacturing soft packing bags with an oblique clipping mouth. The method comprises: a, a step of heat sealing, in which a fourth side edge of a packing bag is sealed by heat partially to form an open section and a semi-sealed section, and the first side edge, the second side edge and the third side edge are sequentially connected with the semi-sealed section of the fourth edge; b, a step of cutting an oblique edge to form an oblique opening, in which the oblique opening and the open section on the fourth side edge of the bag body form an opening part with a curve; c, a step of mouth filling; d, a step of secondary heat sealing, in which the opening part and the mouth are sealed by heat and welded at the same time; and e, a step of filling materials through the mouth and well screwing a cap. The special mould comprises a parallel section and an oblique angle section which form the same angle with the open section and the oblique edge section with the oblique opening and a groove which is arranged on the oblique angle section and allows an upper haft part of the mouth to be inserted into. The invention aims to overcome the drawbacks of the prior art and provides a quick and convenient method for manufacturing soft packing bags with an oblique clipping mouth and a special mould used by the method during manufacture.

Description

[technical field] [0001] The invention relates to a manufacturing method of a flexible packaging bag with an oblique jaw and a special mold used in the manufacturing process. [Background technique] [0002] The flexible packaging bags with oblique clip mouths that are widely used now are generally rectangular in shape. The original bag in front of the mouth is sealed on all four sides, and the mouth does not have a cover. The bag angles of two adjacent sides of this bag are cut a hypotenuse opening by certain position. Due to the small opening, the mouth cannot be automatically pulled to feed the mouth, and the mouth can only be fed manually. The mouth and the bag and the edge of the mouth are welded with a heat-sealing mold to form a non-covered oblique mouth bag welded around the periphery. Because the mouth must be manually operated, it is difficult to automate the entire process of the existing oblique nipple flexible packaging bag making process, the production effic...

AI Technical Summary

Problems solved by technology

Its disadvantage is that it is easy to splash or disperse to the surface to be sealed when filling liquid or powder, which will affect the quality of sealing after filling.

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