Flexible Container Inspection Compression Assembly
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Solution Overview
Problem
Existing methods for testing the seal integrity of flexible containers, particularly in high-speed production lines, often require containers to be removed from the line, which disrupts the manufacturing process and may not effectively detect leaks or defects in real-time.
Innovation Solution
An apparatus and method that apply a predetermined compression force to flexible containers as they travel along the production line, using a sensor assembly to measure internal pressure and determine seal integrity without interrupting the production flow, allowing for real-time analysis and removal of defective containers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If containers are removed from the production line for testing, then seal integrity can be tested, but production efficiency decreases and manufacturing continuity is disrupted
Solution Approach 1:
The compression assembly applies compression force to the container before it reaches the sensor assembly, preparing the container for immediate measurement without removing it from the production line. This preliminary action enables continuous testing while maintaining production flow.
Solution Approach 2:
A sensor assembly acts as an intermediary between the compression force and the measurement system. The sensor detects changes in compression force that indicate seal integrity, enabling non-contact measurement that doesn't interrupt production.
2Reliability
If compression force is applied to test seal integrity, then leak detection is enabled, but container deformation may occur
Solution Approach 1:
The compression assembly is designed to apply dynamic compression force that adapts to the container's properties. The force is sufficient to detect leaks through pressure changes but controlled to minimize permanent deformation, allowing the container to return to its original shape after testing.
Solution Approach 2:
The system changes the parameter of compression force temporarily during testing. By applying a controlled amount of compression and measuring the resulting pressure changes, the system detects leaks without maintaining continuous high compression that would cause deformation.
3Productivity
If in-line testing is implemented, then manufacturing continuity is maintained, but system complexity increases
Solution Approach 1:
The compression assembly serves multiple functions: it applies compression force to the container, generates the pressure differential needed for leak detection, and works in conjunction with the sensor assembly for measurement. This multi-functionality reduces the need for separate dedicated components.
Solution Approach 2:
The container itself serves as part of the testing system. The internal pressure of the container and its response to compression provide the measurement signal, eliminating the need for external test media or complex injection systems.
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
Enables high-speed, in-line testing of flexible containers without removing them from the production line, effectively detecting leaks and other defects, ensuring continuous manufacturing and improving product safety by identifying and removing defective containers promptly.
Implementation Method 1
The sensor assembly is arranged to sense the force applied by the compression assembly to the container. The sensor assembly generates a signal that varies in accordance with the internal pressure of the containers
Implementation Method 2
a compressive force is applied to the wall structure such that the wall structure is displaced from a first position to a second position
Implementation Method 3
the wall structure is displaced from a first position to a second position
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
An apparatus for testing flexible containers traveling along a production line is disclosed. The apparatus includes a compression assembly in line with the production line. The compression assembly has a flexible section for directly contacting and applying a predetermined compression over a predetermined distance to a plurality of containers as they travel by an inspection station. The apparatus also includes a sensor assembly provided in direct contact with a container while a container is in the inspection station. The sensor assembly is arranged to sense the force applied by the compression assembly to the container. The sensor assembly generates a signal that varies in accordance with the internal pressure of the containers as they pass by the sensor assembly. The apparatus further includes a processing circuit configured to receive the signals from the sensor assembly and to determine the acceptability of the internal pressure of the containers.