Capping Head Thermal Dissipation for Sterilization

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Solution Overview

Problem

Existing capping heads fail to achieve complete sterilization of both inner and outer parts without an external power supply, leading to potential contamination risks and increased complexity and cost.

Innovation Solution

Enhancing thermal dissipation power within the capping head using a magnetic or electromagnetic decoupling assembly, which generates heat through parasitic energies from mechanical friction, magnetic field variations, and electromagnetic phenomena, allowing for controlled pasteurization or sterilization temperatures without external power.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electrical heaters are arranged inside the capping head to perform thermal sterilisation, then sterilisation of inner parts is achieved, but the structure becomes complex and expensive, and electric power supply difficulties arise

Engineering Contradiction:
Improvesterilisation completenessVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The capping head utilizes its own operational energy (kinetic energy during cap application) to generate heat through friction between the cap and the ejection mechanism, eliminating the need for separate heating devices and external power supplies. The system serves its own sterilisation needs through its normal operating cycle.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the electrical heating system with a mechanical friction-based heating system. Instead of using electrical heaters that require power supply and control systems, the invention uses the mechanical motion already present in the capping process to generate the necessary heat for sterilisation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Object-affected harmful factors

If gaskets are used to isolate inner and outer parts of the capping head, then contamination is prevented, but the gaskets are subjected to wear and isolation reliability decreases over time

Engineering Contradiction:
Improvecontamination preventionVSAvoidisolation reliability
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The invention removes the gasket component entirely from the isolation system. Instead of using a physical barrier that can wear, the design creates a sterile zone through controlled atmospheric pressure and temperature, extracting the isolation function from mechanical seals to environmental control.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent creates a sterile environment within the capping head by maintaining a controlled atmosphere with positive pressure relative to the external environment. This inert atmospheric barrier prevents contamination without requiring physical seals that are subject to wear.

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

3Reliability

If external power supply is used for thermal sterilisation, then complete sterilisation is achieved, but the overall structure becomes more complex and costly

Engineering Contradiction:
Improvesterilisation completenessVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The capping head system uses its own operational energy to achieve sterilisation. The kinetic energy from the cap ejection process is converted to thermal energy through friction, making the system self-sufficient for sterilisation without external power input.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention converts what would normally be considered wasted energy (friction between moving parts) into a useful function (heat generation for sterilisation). The friction that occurs during normal operation is harnessed to achieve the sterilisation goal.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

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

Achieves complete sterilization of both inner and outer parts, eliminating contamination risks and simplifying the capping head structure while reducing costs, as the heat generation process vaporizes humidity and creates an aseptic environment without requiring external electricity.

Implementation Method 1

generates heat through parasitic energies from mechanical friction

Methodology Applied
Scientific EffectMechanical friction: Friction

Implementation Method 2

magnetic field variations

Methodology Applied
Scientific EffectMagnetic field variations: Magnetic Field

Implementation Method 3

electromagnetic phenomena

Methodology Applied
Scientific EffectElectromagnetic phenomena: Electromagnetic Induction

Implementation Method 4

the heat generation process vaporizes humidity and creates an aseptic environment

Methodology Applied
Scientific EffectVaporization: Evaporation

Data Source

PatentEP3529200B1Capping head for the application of caps on containers or bottles
Publication Date: 2022.10.26 AROL
  • EP3529200B1 patent drawingFigure 1~2
  • EP3529200B1 patent drawingFigure 3a~3c
  • EP3529200B1 patent drawingFigure 4a~4c

AI summary

The present invention concerns a capping head for the application of caps on containers or bottles, as well as a capping assembly using at least one such head. The capping head (10) for the application of caps on containers or bottles comprises a hollow housing (11) internally defining at least a first chamber (19) in which a shaft (13) rotating about a longitudinal axis (A) is housed, the rotating shaft (13) being coupled with the hollow housing (11) through the interposition of a magnetic or electromagnetic decoupling assembly (20) comprising at least a rotor (21) and a stator (22), the magnetic or electromagnetic decoupling assembly (20) being suitable to allow a relative rotation between the hollow housing (11) and the rotating shaft (13) when the rotating shaft (13) is subjected to a braking torque exceeding a threshold torque. The capping head is characterised in that inside the hollow housing (11) there are means for enhancing the thermal dissipation power (28a, 29a, 26, 27, 17a, 17b, 46) generated by the magnetic or electromagnetic decoupling assembly (20).