Web Press Spiraling Path Reduces Footprint
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Solution Overview
Problem
Conventional digital web printers have large footprints due to static drying distances, which are inefficient for applications requiring varying drying times, such as text printing where minimal drying is needed.
Innovation Solution
The web press is configured with inward and outward spiraling paths for the web, allowing variable drying distances by positioning guides to direct the print zones along these paths, enabling application-specific drying times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the web press uses static drying distances configured for maximum drying time, then ink drying is ensured for high coverage printing, but the footprint of the press becomes large and space utilization is poor
Solution Approach 1:
The patent applies dynamics by making the drying distance variable rather than static. The web press system allows the drying distance to be dynamically adjusted based on the specific printing application requirements. This is achieved through a reconfigurable web path system that can modify the distance between printing and handling operations, enabling the same press to adapt to different drying time needs without requiring a large fixed footprint designed for maximum drying time.
2Adaptability or versatility
If the web press is configured with fixed drying distances, then the press structure is simple and stable, but it cannot efficiently handle applications with varying drying time requirements
Solution Approach 1:
The patent applies segmentation by dividing the web path into multiple configurable segments or zones. Instead of a single fixed drying distance, the web path is segmented into adjustable sections that can be independently configured. This allows the system to adapt to different drying time requirements by modifying the length or configuration of specific segments, providing versatility without requiring complete redesign of the entire web path system.
3Area of stationary object
If the web press uses end-to-end positioning of print stations, then the structure is simple and easy to manufacture, but the press footprint becomes large
Solution Approach 1:
The patent applies dimensionality change by transitioning from a linear end-to-end arrangement of print stations to a multi-dimensional web path configuration. Instead of positioning print stations in a simple linear sequence that requires large horizontal space, the system uses a reconfigurable web path that can fold, loop, or arrange stations in two or three dimensions. This allows print stations to be positioned closer together in space while maintaining adequate drying distances through vertical or diagonal web routing, significantly reducing the press footprint.
Data Source
AI summary
A method, system and apparatus for transporting a web through a press are disclosed. The web has a first print zone on a first side and a second print zone on a second side opposite the first print zone. The first print zone is fed past a first print station and then in an inward spiraling direction around and toward a second print station. The second print zone is fed past the second print station and then in an outward spiraling direction.