Electric Wire Delivery Apparatus Twist Prevention
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Solution Overview
Problem
Conventional electric wire sizing-cutting apparatuses experience kinking issues with thin electric wires due to excessive twisting, leading to reduced productivity and mechanical strength deterioration, as the existing rollers fail to manage the twist effectively, especially when the wires are pulled through zigzag arrangements.
Innovation Solution
An electric wire delivery apparatus with a rotation controlling mechanism using a pair of biased rollers to prevent twist transmission upstream, combined with a power supply for detecting joint portions and a cutting mechanism for precise length cutting, ensuring smooth wire supply and preventing kinking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the electric wire is pulled through zigzag rollers to correct bending habit, then the wire can be straightened, but the wire rotates excessively causing kinking
Solution Approach 1:
A guide roller is introduced as an intermediary component between the zigzag rollers and the electric wire. This guide roller prevents the wire from rotating excessively while passing through the zigzag rollers, thereby correcting the bending habit without causing kinking that would deteriorate mechanical strength.
2Productivity
If thin electric wire is used, then productivity is improved, but the wire is more prone to kinking
Solution Approach 1:
The guide roller serves as a mediator that protects thin electric wires from kinking during the bending correction process. By preventing excessive rotation at a critical point in the system, the guide roller enables the use of thin wires without compromising their integrity, thus maintaining high productivity.
3Strength
If the wire is constrained to prevent rotation, then kinking is prevented, but the correction mechanism becomes more complex
Solution Approach 1:
Rather than complexifying the entire correction mechanism, a simple guide roller is added as an intermediary component. This minimal addition effectively prevents wire rotation and kinking without significantly increasing device complexity, maintaining ease of manufacture and operation.
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 solution effectively prevents kinking and enhances productivity by maintaining the electric wire's integrity and mechanical strength, allowing for efficient cutting and assembly of wiring harnesses without halting the manufacturing process.
Implementation Method 1
a rotation controlling means arranged on an upstream-side of the correcting means and putting the electric wire between a pair of rollers biased in a direction approaching each other
Implementation Method 2
a power supply for detecting joint portions
Data Source
AI summary
An electric wire sizing-cutting apparatus including an electric wire delivery apparatus, which is easily handled and can smoothly supply the electric wire without generating a kink, is provided. The electric wire delivery apparatus includes: a transfer means transferring an electric wire, which is delivered from an electric wire reel, along a longitudinal direction of the electric wire; a correcting means arranged between the electric wire reel and the transfer means and correcting a bending habit of the electric wire by allowing the electric wire to pass through between a plurality of rollers arranged zigzag; and a rotation controlling means arranged on an upstream-side of the correcting means and putting the electric wire between a pair of rollers biased in a direction approaching each other.