Straightening Roll Replacement Using a Movable Support Structure
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Solution Overview
Problem
Existing straightening apparatuses for metal products are complex and time-consuming to operate, requiring bulky structures and prone to oxidation-related contamination during roll replacement.
Innovation Solution
A method and apparatus featuring selectively removable straightening rolls with gripping means and a movement member to simplify roll replacement, eliminating the need for complex support structures and reducing operational time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mobile store and bridge cranes are used to replace straightening rolls, then roll replacement is possible, but device complexity and structural bulk increase significantly
Solution Approach 1:
The patent extracts the mobile store from the complex bridge crane system and integrates it directly into the straightening apparatus structure. The mobile store is positioned on guide rails within the apparatus framework, eliminating the need for external bulky support structures while maintaining the ability to replace rolls efficiently.
Solution Approach 2:
The mobile store is merged with the straightening apparatus structure by positioning it on integrated guide rails and using the apparatus's own framework as support. This combines the storage and replacement functions into the main structure, reducing overall device complexity and eliminating separate bulky support systems.
2Ease of operation
If mobile store is positioned between support shoulders during straightening, then roll replacement is enabled, but the mobile store gets completely dirtied by oxidation scale
Solution Approach 1:
The patent segments the mobile store's operational path into two distinct zones: a contamination zone between the support shoulders where the store can be positioned for roll replacement, and a clean zone outside this area where the store can be repositioned to avoid oxidation scale. This segmentation allows the store to access rolls without permanent contamination.
Solution Approach 2:
The mobile store is designed to be dynamically repositionable along guide rails, allowing it to move between a working position (between shoulders for roll replacement) and a clean position (outside the contamination zone). This dynamic movement enables the store to perform its function while minimizing exposure to oxidation contamination.
3Ease of operation
If complex support structures and bridge cranes are installed, then roll replacement is possible, but installation height requirements increase
Solution Approach 1:
The mobile store and guide rails are nested within the existing straightening apparatus structure, utilizing the space between the support shoulders and integrating with the framework. This nested arrangement eliminates the need for external bridge cranes and high support structures, reducing overall installation height requirements while maintaining roll replacement functionality.
Data Source
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AI summary
Method to replace a straightening roll (12) from a rotation shaft (11). The method provides to support a first end (18) of the rotation shaft (11) on a first support member (17) of a first structure (16), to support a second end (21) of the rotation shaft (11) on a second support member (20) of a second structure (19), and to move the second structure (19) toward/away from said first structure (16) to generate a maneuvering space for the installation and/or removal of the straightening roll (12). When the installation of the straightening roll (12) is required a support slider (47) with the straightening roll (12) is positioned between the first structure (16) and the second structure (19), the straightening roll (12) is held on the mobile structure (19), the support slider (47) moves outside the space comprised between the first structure (16) and the second mobile structure (19) leaving the straightening roll (12) on the second structure (19), the second structure (19) is moved toward the first structure (16) to insert the straightening roll (12) on the rotation shaft (11).