Interchangeable Peripheral Segments for Counter-Roller Wear Management

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Solution Overview

Problem

Existing product deceleration stations in printing presses face high wear and maintenance challenges due to the need for frequent replacement of camshafts and countershafts, leading to inefficiencies and inaccuracies in the braking process.

Innovation Solution

The introduction of interchangeable peripheral segments with wear rings on the counter-roller allows for individual replacement of worn parts, reducing maintenance and improving the precision of the braking gap by enabling frequent servicing without replacing the entire counter-roller.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the entire counter-roller is replaced when worn, then the braking precision is restored, but the maintenance time and cost increase significantly

Engineering Contradiction:
Improvebraking gap width accuracyVSAvoidmaintenance time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The counter-roller is divided into multiple interchangeable peripheral segments that can be independently replaced. When wear affects the braking surface, only the specific worn segment needs to be removed and replaced, rather than replacing the entire counter-roller. This segmentation reduces maintenance time while restoring braking precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The worn peripheral segments are designed to be easily discarded and replaced with new or reconditioned segments. The segment design allows for quick removal and installation, minimizing downtime while maintaining the braking gap width accuracy through frequent, low-cost servicing.

Inventive Principle:
Principle #34Discarding and recovering

2Reliability

If the camshaft and countershaft are frequently replaced due to wear, then the braking reliability is maintained, but the device complexity and maintenance cost increase

Engineering Contradiction:
Improvebraking reliabilityVSAvoidmaintenance complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The counter-roller is segmented into replaceable peripheral segments, allowing maintenance personnel to replace only the worn braking surface segments rather than the entire counter-roller assembly. This reduces maintenance complexity while maintaining braking reliability through frequent, simple servicing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The peripheral segments are designed as consumable components that can be easily replaced when worn. This approach treats the braking surface segments as disposable or short-living components, simplifying maintenance procedures and reducing the complexity of maintaining high reliability.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Ease of repair

If the peripheral segments are made with interchangeable wear rings, then the ease of repair is improved, but the device structure becomes more complex

Engineering Contradiction:
Improvemaintenance easeVSAvoidcounter-roller structure
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The counter-roller is constructed with modular peripheral segments that can be independently removed and replaced. Each segment contains a wear ring that can be independently serviced. This segmentation dramatically improves ease of repair while the modular design keeps the overall structural complexity manageable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The wear rings within peripheral segments are designed as replaceable components. When the braking surface wears, only the specific wear ring or segment needs to be discarded and replaced, simplifying repair operations while the modular segment structure maintains reasonable device complexity.

Inventive Principle:
Principle #34Discarding and recovering

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 solution simplifies maintenance, reduces costs, and enhances the accuracy of the braking gap width, allowing for more frequent and cost-effective servicing of the product deceleration station.

Implementation Method 1

Due to the slip, the cams, but also the counter-roller, are exposed to a high level of wear

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP2113480B1Product decelerating station
Publication Date: 2017.03.08 MANROLAND WEB SYST
  • EP2113480B1 patent drawing
  • EP2113480B1 patent drawing
  • EP2113480B1 patent drawing

AI summary

The impression roller (11) comprises a product deceleration recess, which is formed in interaction with a number of cams (10) arranged on a cam shaft (9). A number of exchangeable periphery segments (30) are arranged on the impression roller. Another number of periphery segments are provided, which comprises multiple periphery segments divided along the axis of the impression roller. An independent claim is included for a periphery segment comprises a number of cams arranged on a cam shaft.