Measurement Control Device for Packaging Pressing Member Detection
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Solution Overview
Problem
Packaging devices equipped with pressing members face challenges in accurately detecting article lengths due to the inclusion of the pressing member's length, leading to suboptimal film packaging and waste, especially when packaging articles of different sizes and shapes.
Innovation Solution
A measurement control device with a sensor unit and pressing member detection unit that stops and restarts signal acquisition to exclude the pressing member's length from calculations, allowing for accurate width and shape determination of articles, and includes a control unit to optimize film packaging without waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressing member is provided to reliably transfer articles, then article transfer reliability is improved, but article length detection precision deteriorates because the pressing member length is included in the detection
Solution Approach 1:
The detection process is segmented into two distinct phases: first detecting the pressing member's position, then detecting the article's position. This segmentation allows the system to distinguish between the pressing member and the article, enabling accurate article length measurement without contamination from the pressing member's dimensions.
Solution Approach 2:
The system performs preliminary detection of the pressing member's position before detecting the article's position. By identifying and excluding the pressing member's length in advance, the system can then accurately measure only the article's length, resolving the measurement precision issue while maintaining the pressing member's transfer reliability function.
2Manufacturing precision
If settings are changed for each article size, then packaging precision is improved, but productivity deteriorates due to frequent stopping and resetting
Solution Approach 1:
The system dynamically adjusts packaging settings in real-time based on the detected article length. Instead of static pre-registration for each article type, the control device automatically calculates and applies appropriate packaging parameters (film length, seal positions, etc.) based on the actual measured article dimensions, enabling continuous operation without stopping for reconfiguration.
Solution Approach 2:
The system implements a feedback loop where the detected article length information is fed back to the control device, which then automatically adjusts the packaging settings. This closed-loop control eliminates the need for manual intervention and frequent stopping, maintaining both high precision and productivity.
3Adaptability or versatility
If film size is increased to accommodate larger articles, then adaptability is improved, but film waste increases and packaging appearance deteriorates for smaller articles
Solution Approach 1:
The system changes the film length parameter dynamically based on the detected article length. By calculating the optimal film length for each specific article size and adjusting the packaging settings accordingly, the system achieves high adaptability across different article sizes while minimizing film waste and ensuring good packaging appearance for each case.
Data Source
AI summary
The present invention is to provide a measurement control device. A sensor unit 1 disposed at least in the horizontal direction perpendicular to the traveling direction in which the article G to be packaged is conveyed, and a pressing member detection unit D for detecting an article conveyance pressing member P mounted on the packaging device are connected to the measurement control device main body 2, and the measurement control device is provided with an acquisition signal stopping unit which stops acquisition of signals from the sensor unit 1 when the pressing member detection unit D detects the pressing member P, and a signal acquisition restarting unit which restarts acquisition of signals from the sensor unit 1 when the pressing member detection unit D does not detect the pressing member P.