Sealed Break-Open Package Incision Method
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The production of sealed break-open packages is complex and requires precise incision units to avoid damage to the barrier layer, making it costly and difficult to manufacture efficiently.
Innovation Solution
A method for producing a sealed break-open package using a sheet of semi-rigid plastic with a central pre-weakened area, where the outer incision is made first using a wedge-shaped tool, followed by an inner incision that overlaps and partially penetrates the outer incision, allowing for controlled breakage without requiring precise alignment, thus simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If precise incision units are used to make both inner and outer incisions, then the package can break open cleanly without damaging the barrier layer, but the manufacturing process becomes complex and costly
Solution Approach 1:
The patent divides the incision process into two separate sequential steps: first creating the outer incision, then creating the inner incision that overlaps with it. This segmentation allows each incision to be made with simpler equipment, avoiding the need for a complex precision incision unit that would require perfect alignment of multiple cutting elements.
Solution Approach 2:
The outer incision is created first as a preliminary step before creating the inner incision. This preliminary action establishes a guide path that the inner incision follows, ensuring proper alignment without requiring complex alignment mechanisms. The first incision prepares the structure for the second incision.
2Manufacturing precision
If perfect alignment of inner and outer incisions is required, then the package opens cleanly, but the manufacturing process becomes difficult and time-consuming
Solution Approach 1:
By separating the incision process into two distinct sequential operations rather than requiring simultaneous perfect alignment, the patent eliminates the need for complex alignment systems. Each incision is made independently with tolerance for variation, maintaining manufacturing speed while achieving functional results.
Solution Approach 2:
The outer incision acts as an intermediary element that guides the inner incision. The inner incision follows the path created by the outer incision, using it as a template or guide. This intermediary structure ensures proper alignment without requiring direct precision alignment between multiple cutting tools.
3Manufacturing precision
If a single precise incision unit is used to cut both incisions simultaneously, then alignment is maintained, but the device complexity and cost increase
Solution Approach 1:
The patent segments the incision function into two separate operations performed by simpler devices rather than one complex device. The first device creates the outer incision, and the second device creates the inner incision, eliminating the need for a complex multi-component incision unit with precise alignment mechanisms.
Solution Approach 2:
The outer incision is created as a preliminary guide structure before the inner incision is made. This preliminary incision serves as a template that guides the second cutting operation, allowing the use of simpler cutting devices without compromising alignment quality.
Data Source
AI summary
A production method for producing a sealed break-open package comprising the steps of: making, through an outer surface of a sheet and by means of a first tool, an outer incision, which at least partially extends into the area of the pocket; and making, through an inner surface of the sheet opposite the outer surface and by means of a second tool, an inner incision, which is parallel to and aligned with the outer incision. The inner incision is made only after the outer incision has been completed and by making the second tool perform a working stroke, which brings a tip of the second tool inside the outer incision.