Electrode Cutter Debris Removal for Burr-Free Cutting Quality

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Solution Overview

Problem

Conventional electrode cutting apparatuses fail to effectively remove foreign matter generated during the cutting process, leading to irregular cuts, burrs, and reduced electrode quality due to repetitive contact between upper and lower cutters.

Innovation Solution

An electrode cutting apparatus equipped with a separated foreign matter removal unit that includes a blow unit and a suction unit, operated in sync with the cutters' reciprocation, to immediately remove foreign matter using a suction blow valve unit and injection nozzle, ensuring consistent quality and reduced defects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the upper cutter and lower cutter are used for repetitive cutting of electrode plates, then the cutting function is maintained, but foreign matter accumulates on the cutters and electrode sheets, leading to poor cutting quality and burr generation

Engineering Contradiction:
Improvecutting functionVSAvoidcutting quality
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The invention extracts and removes the harmful foreign matter that accumulates during cutting operations. A suction unit is positioned near the cutting area to extract foreign matter including electrode sheet scraps and dust, while a blow unit blows away foreign matter from the cutter surfaces, preventing contamination and maintaining cutting quality throughout repetitive operations

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention uses pneumatic methods to address the foreign matter problem. A blow unit blows air to remove foreign matter from cutter surfaces, and a suction unit creates negative pressure to extract foreign matter from the cutting area. This pneumatic approach effectively removes contaminants without interfering with the mechanical cutting process

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Manufacturing precision

If foreign matter removal is performed continuously during cutting operations, then cutting quality is maintained, but system complexity increases due to additional removal units

Engineering Contradiction:
Improvecutting qualityVSAvoidsystem complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The invention implements periodic action by controlling the blow unit and suction unit to operate in synchronization with the cutting cycle. The blow unit operates during the cutting stroke to prevent foreign matter accumulation, and the suction unit operates during the return stroke to extract accumulated foreign matter. This periodic operation maintains cutting quality while minimizing the time the additional units are active, thereby reducing overall system complexity

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The invention merges the foreign matter removal function with the existing cutting system by integrating the blow unit and suction unit into the cutter assembly. The control unit synchronizes the operation of these removal units with the cutter's reciprocating motion, combining multiple functions into a coordinated system that manages complexity through unified control

Inventive Principle:
Principle #5Merging (Combining)

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

The apparatus achieves continuous and efficient removal of foreign matter, maintaining electrode quality and increasing production speed by interlocking the removal unit with cutter operation, reducing defects and improving cutting precision.

Implementation Method 1

a blow unit configured to remove foreign matter generated when the supplied electrode sheet is cut

Methodology Applied
Scientific EffectPneumatic force: Pressure Gradient

Implementation Method 2

a suction unit configured to be repeatedly operated and stopped according to an electrode cutting operation in order to remove separated foreign matter

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentEP4205926B1Electrode cutting apparatus including detached foreign substance removing unit
Publication Date: 2025.10.15 LG ENERGY SOLUTION LTD
  • EP4205926B1 patent drawingFigure 1~2
  • EP4205926B1 patent drawingFigure 3
  • EP4205926B1 patent drawingFigure 4

AI summary

The present invention relates to an electrode cutting apparatus including a separated foreign matter removal unit capable of immediately removing separated foreign matter generated at the time of electrode cutting through a blow unit and a suction unit configured to be repeatedly operated and stopped according to an electrode cutting operation in order to remove separated foreign matter generated when the electrode cutting apparatus performs electrode cutting.