Gluing Unit Integrated Cleaning Device for Roller Maintenance

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Solution Overview

Problem

Existing gluing units require lengthy downtimes and pose a risk of damage to the glue roller during cleaning cycles, as the roller must be removed and reinstalled, leading to ergonomic and operational inefficiencies.

Innovation Solution

An integrated cleaning device allows for cleaning the glue roller in its operating position, eliminating the need for removal and minimizing damage risks, with features like a housing defining a cleaning chamber, adjustable washing nozzles, and a detection system for user-friendly automated operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the glue roller is removed and reinstalled for cleaning, then the cleaning can be performed, but the downtime increases and damage risk to the roller increases

Engineering Contradiction:
Improvedamage risk to glue rollerVSAvoiddowntime for cleaning cycle
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The gluing unit is equipped with an integrated cleaning device that enables the glue roller to clean itself in place without removal. The cleaning device includes nozzles that spray cleaning agent directly onto the roller surface, and the roller rotates during cleaning to ensure complete coverage, allowing the system to service itself without external intervention or downtime

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The cleaning device is pre-integrated into the gluing unit structure with nozzles positioned to cover the entire roller surface. The system prepares for cleaning by closing the cleaning chamber seal before initiating the cleaning cycle, ensuring that all necessary components are in place and ready to perform the cleaning function immediately without requiring roller removal or setup time

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the glue roller is removed for cleaning, then cleaning can be performed, but ergonomic conditions deteriorate due to the heavy weight and dirty condition of the roller

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidergonomic conditions during cleaning
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The integrated cleaning device allows the glue roller to be cleaned in its mounted position without requiring operators to manually remove, handle, or reinstall the heavy roller. The automated spray system and rotation mechanism perform the cleaning function while the roller remains securely mounted, completely eliminating ergonomic concerns related to manual roller handling

Inventive Principle:
Principle #25Self-service

3Reliability

If cleaning agent is applied to horizontally installed glue rollers from external nozzles, then cleaning can be performed, but the cleaning effect is weak and peripheral components are contaminated

Engineering Contradiction:
Improvecleaning coverageVSAvoidcontamination of peripheral components
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The cleaning device is nested within the housing structure of the gluing unit, with nozzles positioned inside the cleaning chamber that surrounds the glue roller. The housing acts as a containment structure that directs cleaning agent onto the roller while preventing spray dispersion to peripheral components. The cleaning chamber seal closes off the area during cleaning, containing the cleaning agent and detached glue within the chamber

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The nozzles are strategically positioned at multiple locations around the cleaning chamber to provide localized cleaning coverage of the glue roller surface. The cleaning agent is applied precisely where needed on the roller while the housing structure and seal prevent the agent from reaching peripheral components, creating a localized cleaning zone that is effective and contained

Inventive Principle:
Principle #3Local quality

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 approach reduces downtime, minimizes damage to the glue roller, and enhances ergonomics by enabling efficient, automatic cleaning cycles without the need for roller removal, ensuring effective cleaning and reduced maintenance costs.

Implementation Method 1

for jetting a liquid cleaning agent conveyed under pressure

Methodology Applied
Scientific EffectPressure: Pressure Increase

Implementation Method 2

Washing nozzles are expediently arranged or attachable in the cleaning chamber, at least for jetting a liquid cleaning agent

Methodology Applied
Scientific EffectFluid spray: Fluid Spray

Data Source

PatentEP2610192B1Gluing unit
Publication Date: 2016.07.13 KRONES AG
  • EP2610192B1 patent drawingFigure 1
  • EP2610192B1 patent drawingFigure 2
  • EP2610192B1 patent drawingFigure 3

AI summary

The gluing unit (L) has a rotatably mounted, drivable glue roller (3) and glue supply (23). An integrated or modular cleaning device (R) cleans the rotatably mounted, drivable glue roller in the operating position.