Gluing Unit with Removable Tank and Cleaning Coupling

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Solution Overview

Problem

Existing gluing units in labeling machines are difficult to clean, leading to glue burn-in and contamination, requiring manual effort and resulting in lower cleaning quality and potential environmental hazards.

Innovation Solution

The gluing unit is designed with a removable glue tank and an exchangeable glue scraper system, allowing for the integration of a cleaning unit that can be connected at the coupling point, enabling automated and enhanced cleaning processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the gluing unit elements are firmly connected to one another, then the structural stability is improved, but the cleaning effort increases significantly

Engineering Contradiction:
Improvestructural stabilityVSAvoidcleaning effort
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The gluing unit is divided into separate modular elements (glue tank, glue pump, glue roller, scraper bar) that are connected via detachable coupling points. This segmentation allows individual components to be easily removed for cleaning while maintaining structural stability during operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The coupling points are designed to allow dynamic reconfiguration of the gluing unit. The connection between elements can be quickly changed from connected to disconnected state, enabling easy access to the glue roller for cleaning without permanent structural constraints.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If manual cleaning with steel brush is used, then the cleaning capability is improved, but the contamination risk of glue tank increases

Engineering Contradiction:
Improvecleaning capabilityVSAvoidcontamination risk
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The scraper bar and glue roller are extracted as separate removable components from the glue tank assembly. This allows cleaning to be performed on the roller outside the tank, preventing brush contaminants from entering the glue storage area while maintaining effective cleaning capability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

A detachable coupling point acts as an intermediary between the glue tank and the glue application components. This intermediary allows the roller to be removed for external cleaning without direct access to the tank interior, eliminating the contamination pathway while preserving cleaning effectiveness.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Strength

If the glue tank is permanently connected, then the structural integrity is improved, but the cleaning accessibility decreases

Engineering Contradiction:
Improvestructural integrityVSAvoidcleaning accessibility
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The system is segmented into a stationary glue tank and movable application components (roller, scraper) connected through standardized coupling points. This maintains the tank's structural integrity while providing easy access to cleaning surfaces through component removal.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The coupling points are designed with universal functionality to maintain structural connection during operation and enable easy disconnection for cleaning. The same coupling mechanism serves both structural and operational needs, providing integrity when connected and accessibility when disconnected.

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

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 design simplifies the cleaning process, improves cleaning quality, and prevents contamination of the glue tank, ensuring better hygiene and compliance with environmental standards.

Implementation Method 1

a glue heater, a glue bar, a glue pump... The hot glue that is put into the glue tank and liquefied by the glue heater

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

The hot glue that is put into the glue tank and liquefied by the glue heater can therefore be processed is pumped out of the glue tank via the glue pump

Methodology Applied
Scientific EffectPumping: Pump

Implementation Method 3

A glue scraper with a scraper bar is placed so close to the glue roller that the scraper bar removes the excess glue when the glue roller rotates

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 4

The gluing roller is sprayed with a cleaning agent and then cleaned manually with a steel brush

Methodology Applied
Scientific EffectSpray: Spray

Implementation Method 5

The gluing roller is sprayed with a cleaning agent and then cleaned manually with a steel brush

Methodology Applied
Scientific EffectAbrasion: Abrasion

Data Source

PatentEP2476624B1Gluing unit with detachable glue tank and connectable cleaning unit
Publication Date: 2013.09.04 KRONES AG
  • EP2476624B1 patent drawingFigure 1~3
  • EP2476624B1 patent drawingFigure 4~6

AI summary

The gluing device (1) has a glue tank (2) which is filled with glue to apply on gluing roller of glue unit. The glue unit has removable glue scraper attached at a coupling point (3).