Cable Tie Tensioning Assembly With Closed-Loop Tension Control
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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 calibration is necessary for precise cutting.
Innovation Solution
A cable tie tensioning device with a load cell and closed-loop control system for precise tensioning, featuring a separate cutting motor for accurate cutting after tensioning, and a gear mechanism with radially spaced pockets for quick cutting action.
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 application deteriorate due to lack of calibration and control systems
Solution Approach 1:
The patent replaces manual mechanical tensioning with an automated motorized tensioning system that uses a motor, load cell, and closed-loop control to apply precise and consistent tension to cable ties, eliminating the need for manual calibration and reducing tool-to-tool variation
Solution Approach 2:
The patent implements a closed-loop control system that uses a load cell to measure applied tension in real-time and provides feedback to the controller, which adjusts the motor output to maintain the desired tension level, ensuring consistent tension application across all cable ties
2Device complexity
If manual cutting is used after tensioning, then device complexity is reduced, but productivity and precision of cutting deteriorate due to inconsistent manual operation
Solution Approach 1:
The patent combines the tensioning and cutting functions into a single integrated device, where the motorized tensioning assembly is followed by an automated cutting assembly that operates immediately after tensioning, eliminating the need for separate manual cutting operations and improving overall productivity
Solution Approach 2:
The patent performs the cutting action automatically immediately after tensioning is complete, before the user needs to manually intervene, ensuring consistent cutting precision and eliminating delays between tensioning and cutting operations
3Device complexity
If significant user force is required to actuate manual tools, then device complexity is reduced, but ease of operation deteriorates leading to worker injury and reduced efficiency
Solution Approach 1:
The patent replaces manual mechanical actuation with an automated motorized system that performs both tensioning and cutting operations without requiring significant user force, improving ease of operation and reducing the risk of worker injury while maintaining device functionality
Data Source
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.