Shrink Film Impact Resistance Testing Device
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Solution Overview
Problem
There is a lack of a simple and convenient method for measuring the impact resistance of shrink films, which are widely used for their puncture resistance, shrinkability, and protective properties, making it inconvenient to assess their performance effectively.
Innovation Solution
A device and system comprising a shrink film supporting member with a hollow columnar main body, a supporting part, and fixing parts of varying heights to support and test the film, along with an impact member that moves at a preset speed to exert a frontal impact, allowing for rapid and effective impact resistance measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If no measurement method is used, then the assessment of shrink film performance is incomplete, but implementing a measurement method increases device complexity and operational inconvenience
Solution Approach 1:
The device segments the impact resistance measurement into discrete levels by dividing the main body into multiple sections with fixing parts at different heights. Each section corresponds to a specific impact resistance level, allowing the film to be tested at multiple predetermined impact forces without requiring complex adjustment mechanisms. This segmentation enables precise measurement while maintaining operational simplicity.
Solution Approach 2:
The invention introduces a vertical height dimension to represent different impact resistance levels. By positioning fixing parts at different heights along the main body, the device transforms the abstract concept of impact resistance into a tangible spatial dimension. The level plate's position in this vertical dimension directly indicates the measured impact resistance level, simplifying both the measurement process and result interpretation.
2Adaptability or versatility
If multiple fixing parts at different heights are added to enable level measurement, then impact resistance measurement capability is improved, but device structure becomes more complex
Solution Approach 1:
The main body serves multiple functions: it provides structural support, contains the level plate, houses the fixing parts at different heights, and acts as the reference frame for measurement. The fixing parts themselves are multi-functional, serving both to secure the level plate and to indicate measurement levels. This universal design achieves versatile impact resistance measurement without proportionally increasing overall device complexity.
Solution Approach 2:
The level plate is nested within the main body, and the fixing parts are integrated into the main body's structure. This nesting arrangement allows multiple functional elements to occupy the same spatial envelope, maximizing the use of available space and reducing the device's overall footprint while maintaining the capability to measure multiple impact resistance levels.
3Reliability
If a standardized impact testing device is implemented, then measurement reliability is improved, but manufacturing costs and implementation complexity increase
Solution Approach 1:
The device achieves reliable standardized measurement by changing the position parameter of the level plate within the main body. Instead of requiring multiple identical devices for different impact levels, a single device can measure various impact resistance levels by adjusting the level plate's vertical position to different fixing parts. This parameter change approach maintains measurement reliability while significantly reducing manufacturing costs compared to producing multiple specialized devices.
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 solution enables convenient, cost-effective, and wide-ranging assessment of impact resistance in shrink films, determining resistance levels based on whether the film breaks during impact, facilitating informed selection and application of suitable films.
Implementation Method 1
an impact member, configured to move downward from a position above a geometric center of the supporting part at a preset speed to exert a frontal impact on the shrink film supported on the supporting part
Data Source
AI summary
A device for testing impact resistance includes: a shrink film supporting member, disposed on a horizontal platform, and including a main body, a supporting part, and fixing parts disposed on a sidewall of the main body, the supporting part is configured to support a tested shrink film, the plurality of fixing parts is sequentially disposed in parallel at positions of different heights on the sidewall of the main body, and the fixing parts disposed at the positions of different heights represent different impact resistance levels; a level plate, detachably fixed inside the main body by means of any one of the plurality of fixing parts; and an impact member, configured to move downward from a position above a geometric center of the supporting part at a preset speed to exert a frontal impact on the shrink film supported on the supporting part.