Sheet Coil Wrapping With Synchronized Inner and Outer Edge Protection
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Solution Overview
Problem
Existing sheet coil packaging methods fail to adequately protect both inner and outer edges of sheet metal coils during transport and storage, leading to potential damage.
Innovation Solution
A system and method utilizing two industrial robots and a wrapping tool to rotate sheet coils while synchronizing the application of edge protection material along both inner and outer edges, using outer edge protection mounting devices to feed and fix edge protection material as the coil is wrapped, and an optional inner edge protection tool to create a ring of protection around the central hole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only inner edge protection is applied during sheet coil wrapping, then the inner edges are protected, but the outer edges remain vulnerable to damage
Solution Approach 1:
The protection system is segmented into two independent but coordinated components: inner edge protection (applied by robots during wrapping) and outer edge protection (applied by dedicated mounting devices). This segmentation allows each component to be optimized independently while working together to provide comprehensive edge protection.
Solution Approach 2:
The patent merges the inner edge protection and outer edge protection systems into a single integrated packaging process. The outer edge protection mounting devices are coordinated with the robot wrapping system, so both protections are applied simultaneously during one wrapping cycle, achieving comprehensive edge protection without requiring separate operations.
2Reliability
If outer edge protection mounting devices are added to the wrapping system, then comprehensive edge protection is achieved, but the system complexity increases
Solution Approach 1:
The outer edge protection mounting devices are designed with multi-functionality: they can apply protection to both outer edges of the sheet coil, and the system can accommodate different coil sizes and wrapping configurations. The mounting devices are integrated with the existing robot control system, allowing them to function as part of the overall wrapping process rather than as separate standalone units.
Solution Approach 2:
The outer edge protection material is prepared and positioned by the mounting devices before the main wrapping process begins. This preliminary action ensures that the outer edges are protected from the start of the wrapping operation, preventing damage during the wrapping process itself and eliminating the need for subsequent protection steps.
3Manufacturing precision
If edge protection material is applied during rotation, then continuous protection coverage is achieved, but synchronization precision is required
Solution Approach 1:
The system employs feedback control to maintain synchronization between the rotating sheet coil and the edge protection material application. Sensors detect the position and rotation speed of the coil, and this information is fed back to the control system, which adjusts the material feed rate and mounting device positioning to ensure precise placement of protection material at the correct locations on the coil.
Solution Approach 2:
The edge protection material is applied continuously during the rotation of the sheet coil, without interruption or stopping of the wrapping process. The mounting devices and material feed system are designed to operate continuously at speeds matched to the coil rotation, ensuring uninterrupted protection coverage while maintaining high productivity.
Data Source
AI summary
A system 100 for sheet coil packaging is provided. The system 100 preferably comprises: a sheet coil rotating arrangement 120, arranged to rotate a sheet coil 116 to enable it to be wrapped; first 112 and second 113 industrial robots, having first 108 and second 109 robot arms, arranged to wrap the sheet coil 116 using a wrapping tool 110, using sequences of the first robot arm 108 inserting the wrapping tool 110 into a central hole 118 of the sheet coil 116 and handing over the wrapping tool 110 to the second robot arm 109, and the second robot arm 109 transporting the wrapping tool 110 along the outside of the sheet coil 116 and handing it back to the first robot arm 108, as the sheet coil 116 is rotated by the sheet coil rotating arrangement 120; and two outer edge protection mounting devices 210, 220, arranged at opposite ends of the sheet coil 116 to feed out edge protection material 250 along an outer edge of the sheet coil 116 as the sheet coil 116 is rotated by the sheet coil rotating arrangement 120. The first 112 and second 113 industrial robots are preferably arranged to wrap the sheet coil 116 in synchronization with the feeding out of the edge protection material 250, thereby fixing the edge protection material 250 to the outer edges of the sheet coil 116 by the wrapping as the sheet coil 116 is rotated by the sheet coil rotating arrangement 120.