Folding blade device for pocket attaching machine and pocket attaching machine

By designing an adjustable folding knife assembly and a die device, the problems of low efficiency and complex operation of existing bag-making machines when processing bags of different sizes have been solved, achieving efficient and convenient bag folding and forming.

WO2026129606A1PCT designated stage Publication Date: 2026-06-25JACK SEWING MASCH CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
JACK SEWING MASCH CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Existing bag-sealing machines require adjusting or even replacing the entire set of folding blades one by one when processing bags of the same design but different sizes. This results in low production efficiency and high operational requirements, making it difficult to balance the relative positions of each folding blade.

Method used

Design a folding knife device for a bag-applying machine, including multiple sets of adjustable folding knife components, which can be adjusted automatically or manually. The position adjustment of the folding knife components is achieved through mechanical transmission or coordinated control signals. Combined with an adjustable die device, it can adapt to changes in bag shape and size.

Benefits of technology

It improves the production efficiency and ease of operation of the bag-sealing machine, simplifies the folding and forming process of bags of different sizes, and ensures the consistency of folding effect.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN2025104403_25062026_PF_FP_ABST
    Figure CN2025104403_25062026_PF_FP_ABST
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Abstract

A folding blade device for a pocket attaching machine and a pocket attaching machine. The folding blade device for the pocket attaching machine comprises folding blade assemblies (300). A pocket-shaped region (600) has a pocket opening side (610) and a pocket bottom side (620) opposite to each other, and a centerline (630) extending between the pocket opening side (610) and the pocket bottom side (620). The folding blade assemblies (300) comprise: first folding blade assemblies (310) located on the pocket opening side (610) and respectively arranged on two sides of the centerline (630), wherein the position adjustment direction of the first folding blade assemblies (310) is perpendicular to the centerline (630); and second folding blade assemblies (320) arranged around the pocket-shaped region (600) from the pocket opening side (610) to the pocket bottom side (620), wherein the position adjustment direction of the second folding blade assemblies (320) is parallel to or inclined with respect to the centerline (630). The folding blade device for the pocket attaching machine and the pocket attaching machine can adapt to changes in pocket size, thereby improving the folding effect.
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