Dual-Robot Coil Wrapping Tool With Rotating Roll Handover
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Solution Overview
Problem
Existing technologies for wrapping coils of sheet metal are inefficient and lack practical solutions for flexible and efficient automation.
Innovation Solution
A robot tool and system with a T-shaped design, featuring a rotatable roll holder shaft and symmetrical coupling ends, interfaced with industrial robots, allowing for coordinated handover and synchronized wrapping motion using pneumatic power to efficiently package coils with wrapping material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If linear robots are used for wrapping sheet metal coils, then automation is achieved, but the wrapping process remains time-consuming and inefficient
Solution Approach 1:
The robot tool is designed with a rotatable roll holder shaft that can dynamically adjust its orientation. This rotational capability allows the wrapping material to be fed in synchronized motion with the coil rotation, transforming a static linear wrapping approach into a dynamic coordinated motion system that improves wrapping efficiency while maintaining automation
Solution Approach 2:
The invention introduces rotational motion as an additional dimension to the traditional linear wrapping approach. By mounting the roll holder shaft rotatably and coordinating its rotation with the coil rotation, the system adds a rotational degree of freedom that enables synchronized wrapping motion, thereby improving productivity without sacrificing automation
2Adaptability or versatility
If robots with more degrees of freedom are used, then flexibility is improved, but practical implementation lacks working solutions
Solution Approach 1:
The robot tool is segmented into distinct functional components: a carrier piece with coupling tool pieces at opposite ends, and a separately mounted rotatable roll holder shaft. This segmentation allows each component to be optimized independently - the carrier piece provides flexible coupling interfaces for different robot configurations, while the roll holder shaft provides rotational capability, together achieving both flexibility and practical operability
Solution Approach 2:
The carrier piece acts as an intermediary between the robot arm and the rotatable roll holder shaft. It provides standardized coupling tool pieces that interface with robot arms while supporting the mounted roll holder shaft, mediating between the robot's degrees of freedom and the wrapping function to achieve both flexibility and ease of operation
3Productivity
If a rotatable roll holder shaft is introduced, then synchronized wrapping motion is enabled, but device complexity increases
Solution Approach 1:
The rotatable roll holder shaft serves multiple functions: it holds the wrapping material roll, provides rotational motion for synchronized wrapping, and can be mounted on the carrier piece in different orientations. This multi-functionality justifies the added complexity by delivering significant productivity improvements through coordinated rotational wrapping motion
4Ease of operation
If symmetrical T-shaped design is used, then ease of handover between robots is improved, but manufacturing complexity increases
Solution Approach 1:
While the overall carrier piece has a symmetrical T-shaped design for ease of handover, the coupling tool pieces at opposite ends are configured with asymmetric features that provide standardized interfaces for robot arms. This combination of symmetrical overall shape with asymmetric coupling features achieves both ease of handover and manufacturability using standard robot interfaces
Data Source
AI summary
A robot tool, a robot system and a method for packaging coils of sheet metal. A robot tool for coil packaging, having two ends, each end being provided with a coupling tool piece configured to interface with a robot arm; a roll holder shaft configured to hold a roll of wrapping material, the holder shaft at one end being rotatably mounted substantially midway between said ends and projecting substantially perpendicular to an axis extending between said ends. A robot system for coil packaging, having two industrial robots, each robot being provided with a robot arm having a coupling robot piece configured to interface with a robot tool; and a robot tool, the robot tool having two ends, each end being provided with a coupling tool piece configured to interface with a said robot arm.