Segmented Rotary Cutting Head With Contact Detection for Foil Stripping
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Solution Overview
Problem
Current cable stripping machines require separate devices for different types of cables and stripping tasks, leading to high capital costs and inefficiencies, as they often fail to cleanly remove shielding foils due to lack of adaptability and precise contact detection.
Innovation Solution
A rotary tool holding apparatus with a segmented rotor end face and electrically conductive material, featuring tool holding areas that can be electrically insulated from each other and the rotor base, allowing for adjustable tool configurations and contact detection, enabling efficient stripping of various cable components, including shielding foils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate stripping machines are used for different cable types and stripping tasks, then the quality and accuracy of stripping is improved, but the capital requirement and device complexity increase significantly
Solution Approach 1:
The rotary tool holding apparatus is designed with multiple tool holding areas that can accommodate different types of tools (cutting blades, stripping tools, etc.) for different cable types and stripping tasks. The segmented rotor end face with electrically conductive material and insulation allows the same machine to handle various cable shielding configurations, making one machine perform multiple functions that previously required separate dedicated machines
Solution Approach 2:
The rotor end face is divided into multiple segments with independent tool holding areas. Each segment can be configured with appropriate tools and electrical insulation for specific tasks. This segmentation allows flexible reconfiguration for different cable types without requiring complete machine changes, reducing the need for multiple separate machines while maintaining task-specific precision
2Productivity
If rotating tools are used to remove shielding foil, then productivity is improved, but the ability to cleanly remove shielding foil deteriorates due to inability to detect contact with conductive parts
Solution Approach 1:
The electrically conductive rotor segments provide inherent feedback when a tool contacts a conductive part of the cable (such as the shielding braid). This electrical contact detection allows the system to identify when the shielding foil has been completely removed and the underlying conductor is exposed, preventing over-cutting and ensuring clean removal while maintaining high productivity through continuous rotation
3Measurement precision
If all blades are arranged between conductive plates for contact detection, then contact detection capability is improved, but the ability to perforate shielding foil evenly around the entire circumference deteriorates due to premature contact detection
Solution Approach 1:
Instead of having all rotor segments electrically conductive, only specific segments are made electrically conductive while others are electrically insulating. This local differentiation allows contact detection at critical positions without causing premature detection that would prevent even perforation of the shielding foil around the entire cable circumference
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus provides a cost-effective, versatile solution for stripping multiple cable types with reduced manual intervention, ensuring accurate and efficient removal of insulation sheaths and shielding foils without damaging underlying conductors.
Implementation Method 1
at least the first rotor segment is electrically connected to a device for detecting contact from an electrical conductor
Data Source
AI summary
The present invention relates to a rotary tool holding apparatus (1, 25, 39), comprising a rotor having a rotor base (2) consisting at least in part of an electrically conductive material, and comprising a segmented rotor end face (3), wherein at least a first rotor segment (6a) consisting at least in part of an electrically conductive material has one or more tool holding areas (5), wherein at least the first rotor segment (6a) is fastened to the rotor base (2) so as to be electrically insulated and is electrically insulated from at least some of the other rotor segments and is electrically connected to a device for detecting contact from an electrical conductor. The present invention also relates to a method for removing a shielding foil using a rotary tool holding apparatus according to the present invention.