Wire-drawing Device Modular Roller Die Positioning

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Solution Overview

Problem

Existing wire-drawing devices require high skill for assembly and adjustment, particularly in positioning and cooling of roller dies, leading to variability in wire diameter and increased load on bearings, and are not easily handled by non-skilled workers.

Innovation Solution

A wire-drawing device with a frame and separate supporting bodies for roller dies, utilizing a first positioning means for axial adjustment and a second positioning means for radial adjustment, along with integrated cooling mechanisms, allowing easy assembly and adjustment without direct attachment to the frame, and facilitating cooling medium passage without interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If roller dies are directly attached to the frame with bearing-box-fixing beams and bolts, then the structure is rigid and stable, but the assembly and adjustment require high skill and are time-consuming

Engineering Contradiction:
Improvestructural stabilityVSAvoidassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The device is divided into modular components: roller dies are mounted on supporting shafts that can be independently positioned and adjusted within the frame. The supporting shafts are segmented into adjustable segments that can be moved to different positions along the frame using positioning mechanisms, allowing flexible assembly without requiring high skill or time-consuming adjustments.

Inventive Principle:
Principle #1Segmentation

2Temperature

If cooling-medium passages are integrated into the frame structure, then cooling coverage is extended, but heat transmission from roller dies is insufficient

Engineering Contradiction:
Improvecooling effectivenessVSAvoidheat transmission efficiency
Core Design Contradiction:
TemperatureVSReliability

Solution Approach 1:

Supporting shafts serve as intermediary components that directly contact the roller dies and conduct heat away from them. The cooling-medium passages are integrated into the supporting shafts rather than the frame, creating a direct thermal pathway from the roller dies through the supporting shafts to the cooling medium, thereby improving heat transmission efficiency while maintaining effective cooling.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Manufacturing precision

If multiple adjustment mechanisms are provided for roller die positioning, then positioning precision is improved, but device complexity increases

Engineering Contradiction:
Improvewire diameter consistencyVSAvoidnumber of adjustment mechanisms
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The supporting shafts are designed with multi-functionality: they provide structural support for the roller dies, serve as heat conduction pathways for cooling, and incorporate positioning mechanisms that enable both axial and radial adjustments. This universal design allows a single component to perform multiple functions, reducing the need for separate adjustment mechanisms while maintaining positioning precision for consistent wire diameter.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 device can be assembled and adjusted quickly and easily, reducing the need for skilled labor and minimizing variability in wire diameter, while maintaining effective cooling and reducing bearing loads.

Implementation Method 1

the rotation shafts of the roller dies each include a cooling means provided inside the rotation shaft and extending along the axis of the rotation shaft

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Data Source

PatentEP3006127B1Wire-drawing device
Publication Date: 2019.08.14 KOBE STEEL LTD
  • EP3006127B1 patent drawingFigure 1~2A
  • EP3006127B1 patent drawingFigure 2B~2C
  • EP3006127B1 patent drawingFigure 3A~3C

AI summary

A wire-drawing device (1) for wire-drawing a wire rod by passing said wire rod through a die hole formed by a pair of roller dies (2), the wire-drawing device being provided with: a frame (3); rotation shafts (4) for supporting said roller dies (2) so as to rotate freely; housings (5), which are separate from the frame (3) and on which the rotation shafts (4) for supporting the roller dies (2) are mounted while also supporting the mounted rotation shafts (4); a first positioning means for positioning a housing (5) with respect to the frame (3) by moving the housing along the axial direction of the rotation shaft (4) supported by the housing (5); and a second positioning means for positioning the housing (5) with respect to the frame (3) by moving the housing along a direction perpendicular to the axial direction of the rotation shaft (4) supported by the housing (5). Provided is a wire-drawing device, which can be assembled and adjusted easily and quickly.