Linear Drive Junction Track Alignment for Path Versatility

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Solution Overview

Problem

Traditional linear drive transport systems lack versatility in conveyance paths, limiting their application due to the need for straight or circular tracks, which complicates diverting and merging operations and requires complex track switching mechanisms, leading to inefficiencies in manufacturing and assembly.

Innovation Solution

A linear drive transport system with a shuttle system that includes a junction track on a conveyor, allowing movers to transition between fixed tracks using electromagnetic forces, enabling more flexible path configurations and precise alignment through a combination of moving magnet and moving coil configurations, along with a method for positioning movers by aligning the junction track with fixed tracks and transferring them using electromagnetic interactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional linear drive systems use straight or circular tracks, then the system structure is simple, but the versatility in conveyance paths is limited

Engineering Contradiction:
Improveversatility in conveyance pathsVSAvoidtrack switching mechanisms
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies dynamics by making the junction track movable rather than fixed. The conveyor positioned at the junction can move the junction track laterally to align with different fixed tracks, enabling dynamic reconfiguration of conveyance paths without complex permanent track switching mechanisms

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The transport system is segmented into fixed tracks and a movable junction track. This segmentation allows the junction track to be independently positioned and aligned with different fixed tracks using the conveyor, providing path versatility while keeping each track segment relatively simple in structure

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If complex track switching mechanisms are used to enable versatile conveyance paths, then the versatility improves, but the device complexity and manufacturing costs increase

Engineering Contradiction:
Improveconveyance path flexibilityVSAvoidmanufacturing complexities
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent replaces complex mechanical track switching mechanisms with a conveyor-based alignment system. The conveyor moves the junction track laterally to align with different fixed tracks, substituting elaborate mechanical switches with a simpler conveyor positioning mechanism that reduces manufacturing complexity

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

Solution Approach 2:

The conveyor serves multiple functions: it transports movers along fixed tracks and also positions the junction track for alignment with different fixed tracks. This multi-functionality eliminates the need for separate track switching mechanisms, simplifying manufacturing while maintaining path versatility

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

Enhances the versatility of linear drive systems by allowing movers to be diverted, merged, and maneuvered across different tracks, improving positional accuracy and reducing manufacturing complexities, while enabling smart warehousing and tracking through the use of tags and supervisory controllers.

Implementation Method 1

a linear drive typically produces electromotive force in a conductor by changing a magnetic field about the conductor

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

linear drives generally function based on interactions between electromagnets and permanent magnets

Methodology Applied
Scientific EffectMagnetic field interaction: Magnetic Field

Data Source

PatentEP3031756B2Linear drive transport system and method
Publication Date: 2021.01.06 ROCKWELL AUTOMATION TECH INC
  • EP3031756B2 patent drawingFigure 1
  • EP3031756B2 patent drawingFigure 2
  • EP3031756B2 patent drawingFigure 3~4

AI summary

Present embodiments include a linear drive transport system (10). The system includes a plurality of fixed tracks (18) and a junction track (20) disposed on a conveyor configured to align the junction track with each of the plurality of fixed tracks. The plurality of fixed tracks and the junction track include one of electromagnetic coils (24) or permanent magnets (22) arranged in series along the respective plurality of fixed tracks and the junction track. Further, present embodiments include a plurality of movers (16) configured to move along the fixed tracks and configured to transition between each of the plurality of fixed tracks and the junction track when aligned, wherein the movers comprise the other of the electromagnetic coils or the permanent magnets.