Pallet Wrapping Tightness Testing With In-Line Feedback Control
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Solution Overview
Problem
Existing methods for testing the tightness of palletised load wrapping are costly, unreliable, and time-consuming due to the need for transporting wrapped loads to distant test areas, leading to unsuitable products being produced in large quantities before negative test results are identified.
Innovation Solution
A system and method for testing the tightness of palletised load wrapping that integrates a wrapping station with a test station, allowing real-time assessment of wrapping integrity directly at the production site, using a programmable control unit to communicate and adjust wrapping parameters based on test results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wrapped palletised loads are transported to distant test areas for stability testing, then comprehensive testing can be performed, but transportation costs increase and test results become unreliable due to additional stresses during transit
Solution Approach 1:
The patent combines the production facility and test area into a single integrated system. The test station is positioned within the same facility where palletised loads are wrapped, eliminating the need for transportation to external test areas. This merging ensures that loads are tested immediately after wrapping without undergoing additional transport stresses, thereby maintaining test result reliability while eliminating transportation costs.
2Reliability
If wrapped palletised loads are transported to external test laboratories, then professional testing can be conducted, but significant time elapses between production and testing
Solution Approach 1:
The patent implements preliminary testing by positioning the test station within the production facility itself. Loads are tested immediately after wrapping without being sent to external laboratories. The test station is equipped with professional testing capabilities including tilt mechanisms and sensors that can assess load stability right at the production site, eliminating the time delay between production and testing while maintaining professional testing standards.
3Manufacturing precision
If loads are sent to external test facilities, then wrapping quality can be assessed, but corrective information reaches production too late to prevent waste
Solution Approach 1:
The patent implements a real-time feedback system where the test station is integrated with the production facility's control system. Test results are immediately transmitted back to the production line, allowing operators to adjust wrapping parameters or identify problematic loads right away. This closed-loop feedback mechanism enables rapid corrective action to prevent the production of large quantities of defective wrapped loads, thereby reducing waste while maintaining high wrapping quality standards.
4Reliability
If wrapped loads undergo long-distance transfer before testing, then tests can be performed in specialised facilities, but the loads have already been subjected to significant stresses
Solution Approach 1:
The patent extracts the testing function from external facilities and brings it directly to the production site. By locating the test station within the same facility where loads are wrapped, the system eliminates the need to transport loads to external test facilities. This allows loads to be tested in their initial state, before any additional transport stresses affect their stability, while still maintaining professional testing capabilities through the integrated test station equipment.
Data Source
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AI summary
A system for testing the tightness of a palletised load comprising a wrapping operating station, wherein a wrapping apparatus is configured to support and unwind a reel of protective packaging material in particular a stretch film to be wrapped around at least one side surface of the palletised load, a test station configured to perform a test adapted to assess the tightness of the wrapping of the palletised load, wherein said test station is positioned downstream of the wrapping operating station.