Battery Label Alignment Device Using Sensor Feedback

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Solution Overview

Problem

Conventional methods for aligning labels on battery cases often result in wrinkles or overlapping issues when re-alignment is attempted manually or with physical blocks, especially with peeling labels.

Innovation Solution

An apparatus featuring a servo robot, two sensors, and a rotation part to align labels on a battery case without direct physical force, using sensors to determine alignment and adjust the label position as needed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a physical block is used to push and re-align a label, then the label alignment can be adjusted, but the label becomes wrinkled or overlapped

Engineering Contradiction:
Improvelabel alignmentVSAvoidlabel surface smoothness
Core Design Contradiction:
Manufacturing precisionVSShape

Solution Approach 1:

The patent replaces the mechanical pushing system (physical block) with an optical detection system (sensors) and a control system. The sensors detect label position and the controller adjusts the label alignment without physical contact, eliminating the wrinkling and overlapping problems caused by mechanical pushing.

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

Solution Approach 2:

The patent introduces sensors as an intermediary between the label and the alignment mechanism. Instead of directly pushing the label with a physical block, the sensors detect the label position and transmit information to the controller, which then makes adjustments without direct mechanical contact that causes damage.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If manual alignment checking is performed with a block, then alignment can be verified, but the process is time-consuming and less precise

Engineering Contradiction:
Improvealignment detection accuracyVSAvoidalignment checking time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces manual visual inspection with an automated optical sensor system. The sensors automatically detect label alignment status and provide precise measurements, eliminating the time-consuming and less accurate manual checking process while significantly improving measurement precision.

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

Solution Approach 2:

The sensor system performs self-detection of alignment status without requiring external manual intervention. The system automatically verifies alignment and triggers realignment when needed, making the process faster and more precise while reducing human labor time.

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If direct physical force is applied to re-align a label, then alignment can be corrected, but peeling labels cannot be re-aligned and instead become wrinkled or overlapped

Engineering Contradiction:
Improvelabel realignment capabilityVSAvoidlabel integrity
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The patent replaces direct mechanical pushing with a sensor-based detection and control system. The sensors detect misaligned labels and the controller activates the realignment mechanism without applying excessive physical force that would damage peeling labels, thereby maintaining both realignment capability and label integrity.

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

Solution Approach 2:

The patent implements a feedback mechanism where sensors continuously monitor label alignment status and provide information to the controller. This feedback loop enables precise, controlled adjustments that correct alignment issues without applying excessive force that would damage the label, especially important for peeling labels.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3671701B1Battery label alignment device and method
Publication Date: 2024.11.06 LG ENERGY SOLUTION LTD
  • EP3671701B1 patent drawingFigure 1~2(b)
  • EP3671701B1 patent drawingFigure 3~4

AI summary

In accordance with an embodiment of the present invention, an apparatus for attaching a label to a battery includes a label support on which the label is placed; an alignment check part configured to check whether a label alignment state is normal; and a label aligning part configured to align the label when an abnormality is checked from the alignment check part.