Profile for a rolling tool

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Solution Overview

Problem

Current rolling tools face high refurbishment costs and quality issues due to the complexity of their design, with existing solutions not effectively addressing the need for cost reduction and improved outer contour quality in the rolling process.

Innovation Solution

A two-part rolling tool design featuring a base body and a profile part with a floating bearing, allowing relative movement between the base body and profile part to self-align using translational degrees of freedom, optimizing the rolling process and reducing maintenance costs by enabling easy interchangeability and material savings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the rolling tool is designed as a single integrated piece, then structural strength and stability are improved, but refurbishment costs increase and material efficiency decreases

Engineering Contradiction:
Improvestructural strengthVSAvoidrefurbishment cost
Core Design Contradiction:
StrengthVSEase of repair

Solution Approach 1:

The rolling tool is divided into two separate components: a base body and a profile part. The profile part can be detached and replaced independently when worn, while the base body remains. This segmentation allows cost-effective refurbishment by replacing only the consumable profile part rather than the entire tool assembly.

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If the profile part is made of higher-quality materials, then outer contour quality improves, but overall tool cost increases

Engineering Contradiction:
Improveouter contour qualityVSAvoidmaterial cost
Core Design Contradiction:
Manufacturing precisionVSQuantity of substance

Solution Approach 1:

Different material qualities are applied to different parts of the tool based on functional requirements. The profile part, which directly contacts the workpiece and requires high precision, is made of high-quality material. The base body, which provides structural support but does not directly contact the workpiece, is made of lower-cost material. This local differentiation optimizes both quality and cost.

Inventive Principle:
Principle #3Local quality

3Duration of action of stationary object

If the profile part has increased thickness, then durability and load-bearing capacity improve, but material consumption and cost increase

Engineering Contradiction:
Improveprofile part durabilityVSAvoidmaterial consumption
Core Design Contradiction:
Duration of action of stationary objectVSQuantity of substance

Solution Approach 1:

The profile part is designed with optimized thickness that balances durability and material efficiency. Rather than uniformly increasing thickness throughout, the design uses varying thickness where needed for structural integrity while minimizing material usage in less critical areas. The modular design allows the profile part to be replaced when worn, extending the effective service life of the entire tool system.

Inventive Principle:
Principle #15Dynamics

4Strength

If multiple screw connections are used to attach the profile part, then connection strength improves, but device complexity and assembly time increase

Engineering Contradiction:
Improveconnection strengthVSAvoidassembly complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The connection system is segmented into standardized screw connections that facilitate easy assembly and disassembly. While multiple screws are used to ensure adequate connection strength, they are positioned and sized to balance structural requirements with assembly efficiency, allowing quick replacement of the profile part without excessive complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3738691B1Profile for a rolling tool
Publication Date: 2023.01.18 KAMAX HLDG GMBH & CO KG
  • EP3738691B1 patent drawingFigure 1
  • EP3738691B1 patent drawingFigure 2
  • EP3738691B1 patent drawingFigure 3

AI summary

Profile part (7) for a rolling tool (5), comprising a profiling section (9) for shaping a workpiece (2) to be rolled, and a connecting section (11) for connecting to a separate base body (6) of the rolling tool (5), characterized in that the maximum thickness of the profile part (7), i.e. the thickness at the thickest point of the profile part (7), is between 4 mm and 10 mm, in particular between 4 mm and 8 mm.