Web Treatment Rollers With Software-Selectable Format Change
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Solution Overview
Problem
Existing apparatuses for treating continuous moving webs in absorbent sanitary article production require complex and time-consuming format changes, often necessitating complete or partial replacement of rotary units, which is cumbersome and risky due to delicate adjustments.
Innovation Solution
An apparatus with a tool holder roller and an anvil roller that can switch between different operating conditions via software control, allowing tools with varying geometries to cooperate with anvil elements without physical replacement, enabling format changes through software selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If rotary units are replaced to adapt to new article formats, then the processing width can be adjusted, but the format change becomes complex and time-consuming
Solution Approach 1:
The tool holder roller is designed with adjustable radial position relative to the anvil roller, allowing dynamic reconfiguration of the processing geometry. The roller can be moved radially inward or outward to accommodate different web widths and article formats without requiring complete unit replacement
Solution Approach 2:
A single rotary unit with adjustable tool holder roller position can handle multiple article formats and processing widths. The universal design eliminates the need for dedicated rotary units for each format, reducing format change complexity and time
2Adaptability or versatility
If rotary units are replaced to change format, then processing capability is adapted, but device complexity increases
Solution Approach 1:
The format adjustment capability is segmented into independent adjustable components (tool holder roller position, tool angles) rather than requiring replacement of the entire rotary unit. This segmentation simplifies the adaptation process while maintaining versatility
3Adaptability or versatility
If tool holder roller is replaced for format change, then tool width can be adjusted, but the risk of tool damage increases due to delicate adjustments
Solution Approach 1:
The delicate mechanical adjustment operations are replaced with software-controlled positioning of the tool holder roller. The control system manages the radial movement and tool positioning, eliminating the risk of manual adjustment errors that could damage tools
4Adaptability or versatility
If format changes are made frequently, then production flexibility is improved, but production downtime increases
Solution Approach 1:
The tool holder roller is pre-configured with multiple tools spaced at different angular positions, and the radial positioning system is pre-programmed with the correct positions for different formats. This preliminary preparation allows rapid format switching without time-consuming adjustments
Data Source
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AI summary
An apparatus for treating a moving continuous web (42, 44), comprising a tool holder roller (12), an anvil roller (16) and a control device (40) configured to rotate the tool holder roller (12) and the anvil roller (16) around respective rotation axes (14, 18) in at least one first operating condition and one second operating condition, so as to carry out a change of format of the apparatus with a selection via software.