Rolled Strip Coil Opening with Integrated Ski Formation

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Solution Overview

Problem

Current coil preparation methods in rolling mills are manual, leading to non-productive times and increased plant length, as they require manual tools and are not easily automated, and the formation of a 'rolled strip ski' is dependent on the rolling plant design.

Innovation Solution

A device with a height-adjustable pressure roller and strip beginning detachment device on a frame, allowing for independent coil opening and ski formation, which can be used within or outside the rolling plant, featuring a drive device for rotating the coil and adjustable components for forming the ski.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If manual tools and methods are used for coil preparation, then the process can be performed with simple equipment, but non-productive time increases and productivity decreases

Engineering Contradiction:

Improvesimplicity of equipmentVSAvoidrolling mill productivity

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The coil preparation device performs opening and ski formation automatically through self-contained mechanical systems. The pressure roller applies automatic pressure to separate coil windings, while the lifting device automatically forms the ski shape on the strip beginning, eliminating the need for manual intervention and reducing non-productive time in the rolling mill.

Inventive Principle:

Principle #25Self-service

2Ease of operation

If a bending device is arranged on the infeed device to form the rolled strip ski, then the ski can be formed during introduction, but the overall length of the rolling plant is increased

Engineering Contradiction:

Improveski formation during introductionVSAvoidrolling plant length

Core Design Contradiction:

Ease of operationVSLength of stationary object

Solution Approach 1:

The device combines the ski formation function with the coil opening operation by integrating the lifting device into the same frame structure. This allows both functions to be performed at one location rather than requiring separate bending devices on the infeed device, thereby reducing the overall plant length while maintaining operational effectiveness.

Inventive Principle:

Principle #5Merging (Combining)

3Productivity

If automated coil preparation is implemented, then productivity increases and manual intervention decreases, but device complexity increases

Engineering Contradiction:

Improvecoil preparation efficiencyVSAvoidautomation device complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The frame device serves multiple functions: it supports the pressure roller for opening the coil, accommodates the lifting device for ski formation, and provides structural support for both operations. This multi-functionality reduces the need for separate dedicated devices for each operation, thereby controlling overall device complexity while achieving automated coil preparation and ski formation.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP3763452B1Device for opening a rolled strip coil

Publication Date: 2022.03.16 ACHENBACH BUSCHHITTEN GMBH

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AI summary

Device for opening a rolled strip coil (14) with a pressure roller (21) arranged height-adjustable on a frame device (12) for contact against a coil circumference (20) of the rotating rolled strip coil (14) and a strip start release device (33) arranged height-adjustable on the frame device (12), wherein the frame device (12) is provided with a strip start forming device (71).