Shielded Wire Foil Peeling Without Wire Core Damage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for peeling metal foil from shielded electric wires often damage the wire core due to the cutting depth of the peeling blade being equal to or greater than the sheath thickness, particularly in shielded electric wires where the wire member is closely positioned inside the metal foil.
Innovation Solution
A foil peeling apparatus and method that includes an electric wire gripping unit, a wire member space forming unit to separate the wire members, a foil cutting unit with angled blades to form a cut in the foil without damaging the wire members, and a foil removal unit to open and remove the foil without direct contact with the cutting blades.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the peeling blade cuts the metal foil together with the sheath, then the foil is removed efficiently, but the wire core may be damaged due to cutting depth being equal to or greater than sheath thickness
Solution Approach 1:
The patent divides the foil removal process into two distinct stages: first cutting the foil separately from the sheath, then removing the foil in segments. The cutting blade cuts the foil at a position separated from the sheath cutting location, and the foil is subsequently removed in pieces through pulling or breaking actions, preventing direct contact between the peeling blade and wire core.
Solution Approach 2:
The patent performs preliminary cutting of the foil before attempting to remove it. The foil is cut at a predetermined position that is separated from the sheath cutting location, creating a gap that prevents the peeling blade from contacting the wire core during the subsequent foil removal process.
2Ease of operation
If manual foil cutting is performed, then flexibility in processing is maintained, but dimensional accuracy decreases and processing time increases
Solution Approach 1:
The patent employs an automated system where the foil is cut and removed through mechanical means without requiring manual intervention. The pulling member automatically pulls the foil after cutting, and the system self-regulates the cutting depth and position, eliminating the need for manual foil cutting while maintaining high dimensional accuracy.
Solution Approach 2:
The patent replaces manual mechanical cutting with an automated cutting mechanism. The cutting blade is positioned and controlled by a automated system that precisely controls the cutting depth and position, substituting human operation with a mechanical automation system that provides both precision and efficiency.
Data Source
AI summary
A foil peeling apparatus includes an electric wire gripping unit configured to grip a multi-core electric wire including wire members linearly arranged in parallel, a foil covering the wire members, and a sheath covering the foil, the sheath being peeled off at a tip end portion of the electric wire such that the foil is exposed. The foil peeling apparatus further includes: a wire member space forming unit configured to be pressed against an exposed portion of the foil between the wire members so as to form a space between the wire members; a foil cutting unit configured to be abutted against the exposed portion of the foil corresponding to the space formed between the wire members so as to form a cut in the foil; and a foil removal unit configured to open the foil from the cut, and cut the foil which has been opened.