Convertible Web Press Buffers for Footprint Reduction

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Solution Overview

Problem

The large footprint of web presses due to maintenance platforms and buffers limits their placement in smaller work areas and increases operational costs, while existing solutions do not effectively reduce the footprint without compromising access or printing performance.

Innovation Solution

Implementing convertible buffers that adjust their configuration between operating and non-operating modes, allowing them to coordinate web speeds and provide maintenance access, thereby reducing the overall footprint of the web press.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If maintenance platforms are added to provide access to stations, then ease of operation is improved, but the footprint area increases

Engineering Contradiction:
Improveaccess to stationsVSAvoidfootprint
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The buffer is designed to perform multiple functions: during operation it coordinates web speeds between stations, and during maintenance it transforms into a platform that provides access to stations. This multi-functionality eliminates the need for separate maintenance platforms, reducing footprint while maintaining ease of operation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The buffer structure is made dynamic and reconfigurable, allowing it to transform between its operational configuration (for web speed coordination) and maintenance configuration (providing access platform). This dynamic transformation enables the same structure to serve different purposes at different times, reducing overall space requirements.

Inventive Principle:
Principle #15Dynamics

2Reliability

If buffers are made larger to accommodate web speed variations, then reliability is improved, but the footprint area increases

Engineering Contradiction:
Improveweb speed coordinationVSAvoidfootprint
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The buffer performs dual functions: it coordinates web speed variations between stations during operation, and serves as a maintenance platform when needed. This eliminates the need for separate dedicated maintenance space, reducing footprint while maintaining reliability of web speed coordination.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The buffer utilizes vertical space by transforming into an elevated platform during maintenance, rather than requiring additional horizontal footprint. This dimensional transformation allows the buffer to provide maintenance access without increasing the horizontal area occupied by the web press.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP2683554B1Convertible buffers for web presses
Publication Date: 2019.08.28 HP INDIGO BV
  • EP2683554B1 patent drawingFigure 1~2
  • EP2683554B1 patent drawingFigure 3
  • EP2683554B1 patent drawingFigure 4A~4B

AI summary

In one example, a web press includes a web press station (610) and a convertible buffer (600) near the web press station, the convertible buffer being configured to convert to a platform (630) for accessing the web press station. A method for performing web press maintenance is also disclosed.