Battery Cell Feeder Using Differential Belts for Gentle Alignment

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Solution Overview

Problem

The challenge in battery production is aligning cylindrical battery cells, which are initially unordered, for correct insertion into larger battery housings without causing damage during transport.

Innovation Solution

A transport device with multiple transport belts arranged at distances, driven at different speeds to rotate and align cylindrical components, ensuring they are positioned between two belts in the target area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional alignment methods are used, then alignment precision is improved, but device complexity and cost increase

Engineering Contradiction:
Improvealignment precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The transport belts perform self-alignment of the cylindrical components through their differential motion. The components automatically orient themselves between the belts due to the speed difference, eliminating the need for external alignment mechanisms or devices.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses dynamic speed control of the transport belts to achieve alignment. By varying the speeds of adjacent belts, the cylindrical components are rotated and positioned correctly during transport, rather than using static alignment fixtures.

Inventive Principle:
Principle #15Dynamics

2Object-affected harmful factors

If gentle transport is used, then component damage is reduced, but alignment capability deteriorates

Engineering Contradiction:
Improvecomponent damageVSAvoidalignment capability
Core Design Contradiction:
Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The cylindrical components self-align between the transport belts through their interaction with the belt surfaces. The friction between the components and belts provides both gentle handling and effective rotation/alignment, eliminating the need for separate aggressive alignment mechanisms.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system changes the speed parameter of the transport belts to achieve alignment. By controlling the speed difference between adjacent belts, the components are gently rotated and positioned without requiring mechanical forcing or complex positioning mechanisms.

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If simple transport mechanism is used, then device complexity is reduced, but alignment precision deteriorates

Engineering Contradiction:
Improvedevice complexityVSAvoidalignment precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The transport belts themselves perform the alignment function through their differential motion. The simple belt structure provides both transport and alignment capabilities, eliminating the need for complex alignment mechanisms while maintaining precision.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The transport belts serve multiple functions: they transport the cylindrical components along the production line and simultaneously align them through differential speed control. This multi-functionality reduces overall device complexity while maintaining alignment precision.

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 solution effectively and cost-efficiently aligns cylindrical components, preventing damage during transport and ensuring accurate positioning for further processing.

Implementation Method 1

Driving the conveyor belts at different speeds results in the components being rotated, provided they are still positioned transversely on the conveyor belts

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4563501A1Battery cell feeder with integrated function of position orientation
Publication Date: 2025.06.04 BBS AUTOMATION STUTTGART GMBH
  • EP4563501A1 patent drawingFigure 1
  • EP4563501A1 patent drawingFigure 2a~3
  • EP4563501A1 patent drawingFigure 4~5

AI summary

The invention relates to a device for transporting cylindrical components, in particular battery cells, from a starting area to a target area, comprising a first transport device (12) with a plurality of transport belts (20.1-20.n) which extend from the starting area (16) to the target area (18) and are arranged at a distance from one another; a drive device (30) which is coupled to the transport belts (20) and is designed to drive transport belts, in particular adjacent transport belts, at different speeds, so that the components (24) are located between two adjacent transport belts (20), at least in the target area; and a filling device (70) which, in the starting area, places components on the transport belts (20) in a randomly aligned manner. The invention further relates to a method for aligning cylindrical components.