Direct Coil Winding Around Components With Lower Wire Breakage

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Solution Overview

Problem

The challenge in manufacturing coils for electronic cigarette transponders is the frequent breakage of thin wires during winding, leading to reduced productivity and increased costs due to machine stoppages, as existing technologies lack effective methods to maintain high speed and quality while minimizing wire breakage.

Innovation Solution

A method and machine are developed to wind coils around components with a gentle mechanical treatment and extended winding time, using a winding machine with multiple stations and clamps to manage wire tension and orientation, ensuring stable and efficient coil production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If high operating speed is used during wire winding, then productivity is improved, but wire breakage frequency increases

Engineering Contradiction:
Improveoperating speedVSAvoidwire breakage frequency
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies beforehand cushioning by implementing a tension detection system that monitors wire tension before breakage occurs. The system detects abnormal tension increases and automatically adjusts winding parameters or stops the process to prevent wire breakage, thus allowing high-speed operation while maintaining reliability.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The patent implements feedback control through a tension detection device that continuously monitors wire tension during winding. When abnormal tension is detected, the system provides feedback to control the winding process, automatically adjusting parameters to prevent breakage while maintaining high productivity.

Inventive Principle:
Principle #23Feedback

2Speed

If wire tension is increased during winding, then winding speed can be increased, but wire breakage occurs

Engineering Contradiction:
Improvewinding speedVSAvoidwire breaking load
Core Design Contradiction:
SpeedVSStrength

Solution Approach 1:

The patent applies dynamics by making the wire tension adjustable and adaptable during the winding process. The tension detection device monitors real-time tension and the system dynamically adjusts winding parameters to optimize both speed and wire integrity, rather than using fixed tension values.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by varying wire tension, winding speed, and other process parameters based on real-time detection. The system changes parameters dynamically to prevent wire breakage while maintaining high winding speed, adapting to the specific wire properties and winding conditions.

Inventive Principle:
Principle #35Parameter changes

3Length of moving object

If thin wire with small diameter is used, then transponder miniaturization is achieved, but mechanical resistance decreases

Engineering Contradiction:
Improvewire diameterVSAvoidmechanical resistance
Core Design Contradiction:
Length of moving objectVSStrength

Solution Approach 1:

The patent replaces mechanical strength enhancement with a detection and control system. Instead of using thicker wire to increase mechanical resistance, the system uses tension detection and automated control to monitor and protect the thin wire during winding, allowing miniaturization while preventing breakage.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an intermediary tension detection device that acts as a mediator between the thin wire and the winding process. This intermediary system detects tension abnormalities and triggers protective actions, enabling the use of thin wire without compromising mechanical reliability during manufacturing.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4174885B1Method and machine to manufacture a coil around a component of an article
Publication Date: 2024.07.31 GD SPA
  • EP4174885B1 patent drawingFigure 1
  • EP4174885B1 patent drawingFigure 2
  • EP4174885B1 patent drawingFigure 3

AI summary

Method and machine (18) to manufacture a coil (9-14) around a component (102) of an article (100). A main conveyor (19) moves, along a working path (P1), a carriage (20) provided with a seat (22, 23, 24) designed to house the component (102); the component (102) is arranged in the seat (22, 23, 24) of the carriage (20) in an input station (S1) arranged along the working path (P1); and in a winding station (S3, S6, S9, S12, S15, S18) arranged along the working path (P1), a wire (15) is directly wound around the component (102) to form a series of turns making up the coil (9-14) by making a movable finger (57), which engages the wire (15) in a sliding manner, revolving around the component (102) several times.