Modular Screw Extruder Heater Connections for Easy Element Replacement

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Solution Overview

Problem

Existing heating apparatuses for screw extruders are not easily serviceable, requiring trained electricians for maintenance and disassembly, and lack flexibility in component replacement and configuration.

Innovation Solution

A modular heating apparatus with plug-in contact distributors and flexible connection lines allows for easy replacement and configuration of electrical heating elements, enabling any operator to disconnect and reconnect heating elements without disassembling the entire system, and includes a plug-in contact distributor with multiple contacts for flexible power supply and data bus connectivity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If heating elements are permanently connected to the power supply via fixed wiring, then electrical reliability is improved, but ease of repair deteriorates as trained electricians are required and entire systems must be disassembled for component replacement

Engineering Contradiction:
Improveelectrical reliabilityVSAvoidease of heating element replacement
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The heating apparatus is divided into modular components: heating elements, connection lines, and a plug-in contact distributor. Each heating element can be individually disconnected by unplugging its connection line from the contact distributor, enabling simple replacement without system disassembly while maintaining reliable electrical connections through standardized plug-in interfaces

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A plug-in contact distributor serves as an intermediary component between the power supply and heating elements. This mediator provides standardized electrical interfaces that ensure reliable power transmission while enabling simple plug-and-play replacement of heating elements, eliminating the need for fixed wiring and trained electricians

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the entire heating apparatus is disassembled to replace a defective heating element, then complete system access is improved, but loss of time increases and productivity decreases

Engineering Contradiction:
Improveaccess to heating elementsVSAvoidmaintenance efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The heating apparatus is segmented into independently replaceable modules. Each heating element with its connection line forms a self-contained unit that can be accessed and replaced individually by simply unplugging from the contact distributor, eliminating time-consuming system disassembly and enabling rapid maintenance that preserves productivity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection between heating elements and the power supply is extracted into a separable plug-in interface. This allows heating elements to be individually removed and replaced without affecting other system components, enabling maintenance personnel to quickly swap defective elements while the rest of the system remains operational

Inventive Principle:
Principle #2Taking out (Extraction)

3Stability of the object's composition

If fixed wiring is used to connect power supply to heating elements, then electrical connection stability is improved, but adaptability deteriorates as configuration changes require complex rewiring

Engineering Contradiction:
Improveelectrical connection stabilityVSAvoidflexibility in heating element configuration
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The electrical connection system transitions from a static fixed wiring arrangement to a dynamic plug-in configuration. Connection lines with plug-in contacts can be easily connected, disconnected, and reconfigured at the contact distributor, providing both stable electrical connections during operation and flexible adaptability for configuration changes without complex rewiring

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The plug-in contact distributor provides universal electrical interfaces that can accommodate different heating elements and configuration arrangements. The standardized plug-in connections enable the same infrastructure to support various heating element configurations, positions, and power supply arrangements, enhancing system versatility while maintaining connection stability

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

Facilitates flexible use and easy servicing of heating apparatuses, allowing any operator to replace defective heating elements and adapt configurations without needing a trained electrician, ensuring high personal protection and efficient maintenance.

Implementation Method 1

The heating apparatus comprises at least two electrical heating elements

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS12057664B2Heating apparatus for at least one housing section of a screw extruder and method for servicing a heating apparatus of this kind
Publication Date: 2024.08.06 COPERION GMBH
  • US12057664B2 patent drawing
  • US12057664B2 patent drawing
  • US12057664B2 patent drawing

AI summary

A heating apparatus for at least one housing section of a screw extruder comprises at least two heating elements which are connected to contact plugs via connection lines. For the purpose of supplying power, the heating apparatus comprises an electrical supply line which is connected to a plug-in contact distributor. The plug-in contact distributor comprises at least two plug-in contacts. The contact plugs are releasably connected to the plug-in contacts. The heating apparatus renders possible simple exchange of a heating element and is therefore easy to service. The modular construction of the heating apparatus renders possible flexible use.