Pouch Packaging Top-Side Sheet Non-Linear Cutting
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Solution Overview
Problem
Conventional pouch-type packaging materials have limited design flexibility for the shape of the top-side sheet due to the straight-line cutting process used in the manufacturing process.
Innovation Solution
A method and device for manufacturing pouch-type packaging materials that involve a sheet joining process, folding processes, and specific cutting processes to create a top-side sheet with increased design flexibility by allowing for non-linear cutting lines and intersections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a straight-line cutting process is used to separate continuous sheet material into pieces, then the manufacturing process is simple and efficient, but the shape of the side edges of the top-side sheet is limited
Solution Approach 1:
The cutting process is divided into two distinct stages: a first cutting process that performs preliminary cutting while sheets are held vertically, and a second cutting process that completes the separation while sheets are held in the feed direction. This segmentation allows each cutting stage to serve a specific purpose, enabling complex side edge shapes while maintaining manufacturing efficiency.
Solution Approach 2:
The invention introduces a dimensional change by holding the body sheet materials and top-side sheet material vertically (perpendicular to the feed direction) during the first cutting process. This vertical orientation provides an additional dimension for cutting operations, enabling the creation of complex side edge shapes that cannot be achieved with conventional single-direction cutting.
2Ease of manufacture
If the top-side sheet material is cut along a straight line in the vertical direction, then the cutting process is straightforward, but the design flexibility for the shape of the top-side sheet is limited
Solution Approach 1:
The invention makes the cutting system dynamic by changing the orientation and direction of cutting operations between two distinct processes. The first cutting process operates vertically while sheets are held upright, and the second cutting process operates in the feed direction after sheets are repositioned. This dynamic approach enables versatile top-side sheet designs while keeping each individual cutting operation straightforward.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method and device enable the creation of pouch-type packaging materials with top-side sheets that have more complex and varied shapes, enhancing design flexibility without compromising the structural integrity of the packaging.
Implementation Method 1
a sheet joining process of joining a first main region of the first body sheet material and a second main region of the second body sheet material to provide a pair of side seals spaced apart from each other in a third direction perpendicular to the first direction and the second direction, and joining a first sub-region of the first body sheet material, a second sub-region of the second body sheet material, and the top-side sheet material to provide a top-side seal
Data Source
AI summary
A method for manufacturing a pouch-type packaging material includes: a first folding process; a first cutting process of cutting the top-side sheet material, a second sub-region, a first main region, and a first sub-region along a first cutting line that extends from a portion where the top-side sheet material and the second sub-region overlap to a portion closer toward a bottom side in a z direction beyond a first boundary line; a second folding process; a second cutting process of cutting the top-side sheet material, the first sub-region, the first main region, and a second main region along a second cutting line to form a top-side sheet from the top-side sheet material, where the second cutting line extends from a portion where the top-side sheet material and the first sub-region overlap to a portion closer toward the bottom side in the z direction beyond the second boundary line.