Folding Assembly Shared Funnel Roller Space Reduction
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Solution Overview
Problem
Existing web-fed printing press folding structures require significant installation space and are complex and costly to retrofit due to the need for multiple funnel levels with separate rollers, which limits flexibility and accessibility.
Innovation Solution
A folding structure with two former levels, where the second former level is arranged above the first and uses a single funnel roller to guide the web or partial web, eliminating the need for separate rollers and associated components, allowing for reduced space requirements and easier maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple funnel levels with separate rollers are used to guide webs of different widths, then web width variability and production flexibility are improved, but installation space requirements and device complexity increase significantly
Solution Approach 1:
The patent merges the funnel functions for multiple former levels into a single shared funnel roller. Instead of having separate funnel rollers for each former level, one funnel roller serves multiple formers arranged in different levels, thereby reducing the installation space while maintaining the capability to process webs of different widths.
Solution Approach 2:
The single funnel roller is designed to perform multiple functions by guiding webs to different former levels. This universal component can serve multiple formers with different widths and configurations, eliminating the need for dedicated funnel rollers for each level and reducing overall system complexity.
2Adaptability or versatility
If multiple funnel levels with separate rollers are used, then different former widths and geometries can be accommodated, but device complexity and retrofitting costs increase
Solution Approach 1:
The patent combines multiple funnel functions into a single physical component (the shared funnel roller). This reduction in the number of separate components directly lowers device complexity and makes retrofitting more cost-effective, while still allowing different former configurations to be accommodated through the single funnel's ability to serve multiple levels.
Solution Approach 2:
The single funnel roller is designed as a universal component that can guide webs to various former levels with different widths and geometries. This multi-functional design eliminates the need for multiple specialized components, thereby reducing overall system complexity while maintaining adaptability.
3Manufacturing precision
If separate funnel rollers are used for each former level, then web guidance precision is improved, but accessibility and ease of maintenance deteriorate due to reduced space
Solution Approach 1:
By merging the funnel functions into a single shared roller, the patent creates more physical space around the component. This increased accessibility facilitates easier maintenance and operation, while the single funnel roller maintains adequate web guidance precision through its centralized position and proper design.
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
This configuration significantly reduces installation space, particularly height, and simplifies retrofitting, enhancing flexibility and accessibility while maintaining production variability and web width options.
Implementation Method 1
whether this funnel roller is motor-driven or dragged along by the friction with the web
Data Source
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AI summary
The invention relates to a folding assembly of a web offset printing press, which consists of a first and a second hopper level, wherein each of the two hopper levels comprises at least one folding funnel and the second hopper level is arranged above the first hopper level. Previously known folding assemblies with multiple hopper levels require a large installation space and significant mechanical engineering effort for an additional hopper level, which consists of one or more folding funnels arranged side by side. The reduction in space requirements and effort is achieved by feeding the web or partial web to the at least one folding funnel of the first hopper level and to the at least one folding funnel of the second hopper level using the same hopper roller.