Double Steel Wire Heating Control for Uniform Spring Coiling

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Solution Overview

Problem

Existing mattress spring production technologies face challenges in achieving uniform and stable heat treatment for double steel wires, leading to inconsistent quality and durability due to frequent switching between different steel wire diameters.

Innovation Solution

A method and device for detecting and maintaining the heating treatment temperatures of double steel wires using real-time temperature sensors and controllers, ensuring that both steel wires are heated within a predetermined range, allowing for efficient switching between them without compromising heat treatment quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a coiling machine continuously switches between two types of steel wires to produce mattresses with soft and hard partitions, then production efficiency is improved, but heat treatment uniformity and stability deteriorate

Engineering Contradiction:
Improveproduction efficiencyVSAvoidheat treatment uniformity
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The heating system is segmented into two independent heating mechanisms, each dedicated to heating one specific steel wire. This segmentation allows each heating mechanism to maintain stable temperature control for its assigned steel wire, even when the coiling machine switches between different wire types, thereby resolving the contradiction between production efficiency and heat treatment uniformity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The steel wires are pre-heated before coiling to eliminate internal stresses and ensure uniform heat treatment. By performing the heating action in advance and maintaining it through the coiling process, the system ensures that each steel wire receives consistent heat treatment regardless of switching frequency, thus maintaining manufacturing precision while enabling high productivity.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If frequent switching between different steel wire diameters is performed, then production flexibility is improved, but heat treatment stability deteriorates

Engineering Contradiction:
Improveproduction flexibilityVSAvoidheat treatment stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The heating mechanisms are designed to dynamically adjust and maintain appropriate temperatures for different steel wire types. Each heating mechanism can independently adapt its heating parameters to match the specific requirements of the steel wire being processed, ensuring heat treatment stability even when switching between different wire diameters and types.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Temperature detection mechanisms continuously monitor the temperature of each steel wire and provide feedback to the heating mechanisms. This closed-loop feedback system ensures that heat treatment stability is maintained by automatically adjusting heating parameters in response to real-time temperature measurements, regardless of how frequently the coiling machine switches between different steel wire types.

Inventive Principle:
Principle #23Feedback

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 approach ensures consistent heat treatment for both steel wires, improving production efficiency and maintaining the quality of mattress springs by maintaining the temperature of the second steel wire within a predetermined range, thus ensuring each spring receives uniform heat treatment.

Implementation Method 1

A mattress spring is usually subjected to heat treatment after coiling for the purpose of eliminating internal stress of a steel wire

Methodology Applied
Scientific EffectHeat treatment: Heat Treatment

Implementation Method 2

two temperature detection mechanisms for respectively detecting temperatures of the two steel wires in real time

Methodology Applied
Scientific EffectTemperature detection: Thermocouple

Data Source

PatentEP3623071B1Method for processing two steel wires
Publication Date: 2022.06.22 GUANGZHOU LIANROU MACHINERY & EQUIPMENT CO LTD
  • EP3623071B1 patent drawingFigure 1~2
  • EP3623071B1 patent drawingFigure 3
  • EP3623071B1 patent drawingFigure 4

AI summary

Disclosed are a device and method for detecting heating treatment temperatures of double steel wires. The temperature detection device includes a double wires coiling machine (10), two heating mechanisms (21, 22) for respectively heating two steel wires, and two temperature detection mechanisms (31, 32) for respectively detecting temperatures of the two steel wires in real time, and a controller electrically connected to the two heating mechanisms (21, 22) and the double-wire spring coiling machine (10) respectively. The invention employs the two temperature detection mechanisms (31, 32) to acquire the temperatures of the two steel wires in real time, such that the steel wires reach a preset temperature when being coiled into springs.