Expandable Material With Crossed Lines for Tearing-Resistant Extraction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing expandable materials for packaging, supplied in a roll form, face challenges such as inconvenient extraction, risk of tearing during initial extraction, and inconsistent quality due to changing tensile force and inertia as the roll is used.
Innovation Solution
The introduction of an expandable material with crossed lines, supplied in a stacked form, featuring creasing lines and slits that allow for continuous extraction and expansion without tearing, improving quality consistency and extraction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If expandable material is supplied in roll form, then it can be continuously extracted, but the material is prone to tearing during initial extraction and quality consistency deteriorates
Solution Approach 1:
The expandable material is divided into multiple stacked layers instead of being supplied as a continuous roll. Each layer can be independently extracted, eliminating the tearing issue that occurs when pulling from a roll. The segmentation into discrete layers maintains ease of operation while improving material integrity during extraction.
Solution Approach 2:
The material supply form is changed from a two-dimensional roll to a three-dimensional stacked structure. This dimensional change allows layers to be extracted sequentially from the stack without the lateral stress and tearing that occurs in roll extraction, thereby maintaining operational convenience while significantly improving reliability.
2Productivity
If expandable material is supplied in roll form, then it can be extracted continuously, but extraction quality consistency deteriorates due to changing tensile force and inertia
Solution Approach 1:
By segmenting the material into discrete stacked layers, each layer has uniform mass and extraction characteristics. This eliminates the varying tensile force and inertia problems that occur when extracting from a roll, where the roll's weight and rotational inertia change continuously. Each layer extracts with consistent quality while maintaining continuous productivity.
Solution Approach 2:
The physical state of the material supply is changed from a rotating roll with variable mass distribution to a static stack with uniform layer mass. This parameter change standardizes the extraction conditions for each layer, ensuring consistent extraction quality while maintaining continuous supply capability.
3Reliability
If expandable material is supplied in stacked form, then extraction reliability improves, but device complexity increases due to creasing lines and slits structure
Solution Approach 1:
The creasing lines and slits are pre-formed in the material during manufacturing, before the stacking process. This preliminary action eliminates the need for complex real-time processing equipment during extraction, as the material is already prepared in its final stacked form with all necessary structural features built-in.
Solution Approach 2:
The stacked structure with creasing lines and slits is designed as a standardized template that can be repeatedly manufactured and stacked. This copying approach allows the complex structure to be produced through simple, repeatable manufacturing processes rather than requiring complex handling equipment during extraction.
Data Source
AI summary
Provided is an expandable material with crossed lines, an expansion system and a method for supplying a package material. Said expandable material comprises: creasing lines, wherein the creasing lines extend along a horizontal direction of said expandable material and are arranged at intervals in a longitudinal direction of said expandable material, and said expandable material is continuous on the creasing lines and folded along the creasing lines to form a saw-toothed stack; and slits, wherein the slits pass through said expandable material, extend along a first direction, and are inclined to the creasing lines and arranged at intervals on slit lines defined in the first direction, the slit lines are arranged at intervals in the longitudinal direction of said expandable material, and the slits of two adjacent slit lines are mutually staggered in the longitudinal direction of said expandable material.