Packaging Insert Thermo-Forming Corner Design
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Solution Overview
Problem
Conventional packaging methods often result in stress marks and defects at corners, especially when forming plastic packaging inserts that match the profile of the box, leading to aesthetic issues and potential damage during shipping.
Innovation Solution
The use of a thermo-forming process with a packaging insert design featuring extended and abbreviated portions at corners, along with slanted transition portions, helps prevent stress marks by reducing the vertical draw and distributing stress evenly, while the insert's shape matches the box's profile for a seamless assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional thermo-forming process is used to form packaging insert, then packaging insert can be formed to match box profile, but stress marks and defects occur at corners
Solution Approach 1:
The packaging insert is divided into different corner types: abbreviated portions with reduced vertical draw and extended portions with full vertical draw. This segmentation allows different regions to serve different functions - abbreviated portions prevent stress marks while extended portions maintain profile matching, resolving the contradiction between shape conformity and manufacturing quality
Solution Approach 2:
Different corner portions of the packaging insert have different vertical draw characteristics. The abbreviated portions have reduced vertical draw to eliminate stress marks, while extended portions maintain full vertical draw for profile matching. This local differentiation resolves the contradiction by applying different forming characteristics to different locations
2Ease of manufacture
If packaging insert has uniform corner design, then manufacturing is simplified, but stress marks occur at all corners
Solution Approach 1:
The uniform corner design is segmented into abbreviated and extended portions. This segmentation maintains manufacturing simplicity through a single thermo-forming process while eliminating stress marks at specific corner locations, resolving the contradiction between manufacturing ease and defect prevention
3Shape
If packaging insert corners are extended to match box profile, then aesthetic appeal is improved, but stress marks and potential damage occur
Solution Approach 1:
The corner extensions are segmented into abbreviated portions that provide structural support without excessive extension, and extended portions that provide aesthetic profile matching. This segmentation maintains reliability by limiting extension where it causes stress while preserving aesthetics where extension is beneficial
Solution Approach 2:
Different corner regions have different extension characteristics - abbreviated portions with reduced extension for structural integrity and extended portions with full extension for aesthetic appeal. This local differentiation resolves the contradiction between reliability and aesthetic appearance
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
This approach ensures a defect-free, aesthetically appealing packaging solution that securely holds products during shipping and handling, focusing consumer attention on the product rather than the packaging, by eliminating stress marks and enhancing structural support.
Implementation Method 1
The use of a thermo-forming process with a packaging insert design featuring extended and abbreviated portions at corners
Data Source
AI summary
Packaging used to hold and ship consumer products may include a packaging insert having an exterior profile that substantially matches an interior profile of the box it is placed in during assembly. In some embodiments, the packaging insert may be formed using a thermo-forming process that inhibits the formation of defects, such as stress marks, located near or on the corners of the packaging insert. The packaging insert may include a side wall having a plurality of extended portions and a plurality of abbreviated portions. In some embodiments, the packaging insert may include a plurality of flaps rotatably connected to a body of the packaging insert.