Cable Tie Tensioning Assembly With Load-Cell Feedback Cutting
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Solution Overview
Problem
Existing cable tie tensioning tools lack accurate and consistent tension control, leading to inconsistent tensions, increased manual effort, and potential worker injury, while manual tools require significant user force and result in over or under-tensioning.
Innovation Solution
A cable tie tensioning device with a load cell and closed-loop control system for precise tensioning, featuring a separate cutting motor and mechanical system for accurate cutting, allowing for consistent and efficient cable tie installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual cable tie tensioning tools are used, then device complexity is reduced, but manufacturing precision and reliability of tension control deteriorate
Solution Approach 1:
The patent replaces manual mechanical tensioning with an automated motor-driven tensioning system that includes a load cell for force measurement and a controller for closed-loop control. This substitution of manual mechanical operation with an automated electromechanical system resolves the contradiction by achieving precise tension control through electronic feedback while maintaining relatively simple overall device architecture.
2Manufacturing precision
If motorized tensioning assembly is used, then manufacturing precision of tension control is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single unified device: the motorized tensioning assembly performs both the tensioning operation and includes built-in load cell measurement and control capabilities. The cutting assembly is also integrated into the same device body. This multi-functionality approach resolves the contradiction by consolidating complex functions into one coordinated system rather than requiring multiple separate devices, thereby achieving precise tension control without proportionally increasing overall device complexity.
3Device complexity
If manual cutting is used, then device complexity is reduced, but productivity and consistency deteriorate
Solution Approach 1:
The patent merges the cutting function with the tensioning function by integrating a motorized cutting assembly into the same device body as the tensioning assembly. The controller coordinates both tensioning and cutting operations automatically. This merging resolves the contradiction by achieving consistent, automated cutting that improves productivity while keeping the overall device structure unified and manageable rather than requiring separate manual cutting tools.
4Manufacturing precision
If separate cutting motor is used, then manufacturing precision of cutting timing is improved, but device complexity increases
Solution Approach 1:
The patent employs a controller that receives feedback from the load cell during tensioning and automatically triggers the cutting motor at the precise moment when target tension is achieved. This feedback-based control system resolves the contradiction by ensuring accurate cutting timing through real-time monitoring of tension forces, while the integrated controller manages the coordination of multiple motors without requiring complex mechanical linkages or additional mechanical complexity.
Data Source
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AI summary
A cable tie tensioning device is provided. The cable tie tensioning device includes a tensioning assembly configured to at least partially receive a cable tie and apply tension to the cable tie. The cable tie tensioning device further includes a cutting assembly configured to cut the cable tie after the tension has been applied to the cable tie with the tensioning assembly. The cutting assembly includes a cutting motor configured to actuate a mechanical system to perform a cutting action of the cable tie. The cutting motor is separate from a motor associated with the tensioning assembly.