Wire Coating Temperature Feedback Control

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Solution Overview

Problem

Existing wire painting devices often result in 'overburned' wires due to varying ambient temperatures, leading to increased energy consumption and reduced production output, as they struggle to maintain consistent quality without compromising energy efficiency.

Innovation Solution

A temperature-measuring device is implemented after the oven and cooling device to adjust the cooling and heating outputs based on the wire's temperature, ensuring the specified quality requirements are met while reducing energy consumption by controlling the speed of fans in the cooling devices and optimizing air supply and exhaust.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If higher temperature in the oven is used to ensure quality requirements, then the degree of stoving is improved, but energy consumption increases

Engineering Contradiction:
Improvedegree of stovingVSAvoidenergy consumption
Core Design Contradiction:
Manufacturing precisionVSUse of energy by moving object

Solution Approach 1:

A temperature measuring device is provided after the cooling device to measure the actual temperature of the linear element. The control unit receives this temperature information and adjusts the oven temperature and cooling device output dynamically to maintain the wire temperature within the target range, preventing both under-baking and over-baking while optimizing energy consumption.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically changes operating parameters (oven temperature, cooling device output) based on measured wire temperature to maintain optimal baking conditions. This allows the process to adapt to varying ambient conditions without consistently using high energy-consuming settings.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If higher cooling capacity is used to control wire temperature, then temperature control precision is improved, but energy consumption increases

Engineering Contradiction:
Improvetemperature controlVSAvoidenergy consumption
Core Design Contradiction:
Manufacturing precisionVSUse of energy by moving object

Solution Approach 1:

The control unit continuously monitors the wire temperature after cooling and adjusts the cooling device output accordingly. This feedback mechanism ensures that cooling capacity is precisely matched to actual needs, avoiding unnecessary energy consumption from excessive cooling while maintaining temperature control precision.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The cooling device output is made dynamically adjustable based on measured temperature conditions. The system transitions from static, fixed cooling capacity to dynamic, demand-responsive cooling capacity, optimizing energy efficiency while maintaining control precision.

Inventive Principle:
Principle #15Dynamics

3Reliability

If 'overburned' wires are produced to ensure quality, then reliability is improved, but productivity decreases

Engineering Contradiction:
Improvequality requirement fulfillmentVSAvoidproduction output
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

By measuring the actual wire temperature and providing feedback to the control unit, the system can precisely control the baking process to achieve the minimum required degree of stoving without excessive heating. This eliminates the need to consistently over-bake wires, allowing faster production cycles while maintaining quality reliability.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system replaces manual or experience-based temperature control with automated electronic measurement and control. The temperature measuring device and control unit enable precise, objective control of the baking process, eliminating the conservative 'overburning' approach and enabling optimized production speeds that maintain quality.

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

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

This solution ensures high-quality wire coating by automatically compensating for ambient temperature fluctuations, reducing the risk of overburning and minimizing energy consumption by providing exactly the required cooling capacity, thus enhancing energy efficiency and production output.

Implementation Method 1

a measuring device for measuring the temperature of the linear element provided with at least one lacquer layer is provided after the oven and the cooling device

Methodology Applied
Scientific EffectThermal radiation measurement: Thermal Radiation

Implementation Method 2

at least one sensor in the body for detecting a heat flow between the linear element and the body

Methodology Applied
Scientific EffectHeat flow detection: Conduction (thermal)

Implementation Method 3

the cooling device is associated with at least one fan with an impeller, wherein the speed of the impeller is controlled to control the cooling capacity of the cooling device

Methodology Applied
Scientific EffectForced convection: Forced Convection

Implementation Method 4

an oven for solidifying the layer of paint

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 5

the temperature in the oven, the wire speed, the wire diameter, as well as the ambient temperature and the relative humidity

Methodology Applied
Scientific EffectConvection heating: Convection

Data Source

PatentEP2268414B1Device and method for coating a linear element, in particular a wire
Publication Date: 2012.02.08 NHKM CONSULTING
  • EP2268414B1 patent drawingFigure 1
  • EP2268414B1 patent drawingFigure 2~3
  • EP2268414B1 patent drawingFigure 4~5

AI summary

The invention relates to a device and a method for coating a linear element (8), in particular a wire, comprising an application device (2) for applying at least one coating layer, an oven (3) for making the coating layer set and at least one cooling device (4), wherein a measuring device (11) for measuring the temperature of the linear element (8) provided with at least one coating layer is provided downstream of the oven and the cooling device, as seen in the direction in which the linear element (8) is drawn through.