Electrode Plate Notching With Triggered Scrap Pusher Discharge

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Solution Overview

Problem

Existing electrode plate notching processes face challenges in efficiently discharging scraps generated during the notching of electrode plates, which can degrade notching quality and efficiency.

Innovation Solution

An electrode plate notching apparatus and method utilizing a scrap pusher mechanism with a rotatable blade and restoring member, triggered by a vertical movement of a second mold, to remove scraps from punch holes without external power, ensuring smooth discharge and maintaining cutting quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a traditional puncher is used for notching electrode plates, then the notching process can be completed, but scraps generated during notching cannot be efficiently discharged

Engineering Contradiction:
Improvenotching process completionVSAvoidscrap discharge efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The invention extracts the scrap discharge function from the traditional puncher by introducing a separate scrap pusher mechanism. The pusher blade is specifically designed to enter the punch hole and push scraps outward, separating the cutting function (puncher) from the scrap removal function (pusher), thereby solving the inefficiency of scrap discharge in traditional notching processes

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The pusher blade acts as an intermediary element between the puncher and the scrap. It enters the punch hole created by the puncher and mechanically pushes the scraps outward through the discharge hole, serving as a mediating component that enables efficient scrap removal without requiring external power sources or complex mechanisms

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If a scrap pusher mechanism is added to discharge scraps, then scrap discharge efficiency improves, but the device complexity increases

Engineering Contradiction:
Improvescrap discharge efficiencyVSAvoidapparatus structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The scrap pusher mechanism is designed to be self-actuating through the elastic deformation of the electrode plate during the notching process. As the electrode plate bends during punching, it automatically drives the pusher blade to move and push scraps outward, eliminating the need for external motors, sensors, or control systems. This self-service approach maintains high scrap discharge efficiency while minimizing device complexity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The pusher blade is designed with rotational freedom and elastic connection to the support body, allowing it to dynamically adapt its position and movement based on the punching process. The blade can rotate to follow the motion of the electrode plate and automatically return to its initial position after scrap discharge, providing dynamic scrap removal capability without complex mechanical linkages

Inventive Principle:
Principle #15Dynamics

3Productivity

If the pusher blade continuously contacts the scrap, then scrap discharge is effective, but wear on contact surfaces increases

Engineering Contradiction:
Improvescrap discharge effectivenessVSAvoidcontact surface durability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The pusher blade engages in periodic contact with scraps rather than continuous contact. It pushes scraps outward during the punching phase, then returns to its initial position where the restoring force prepares it for the next cycle. This periodic action reduces cumulative wear on the blade and contact surfaces while maintaining effective scrap discharge during each punching operation

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The pusher blade applies force to scraps only when necessary (during the punching phase), rather than maintaining constant contact. The restoring force ensures the blade returns to a non-contact position after scrap discharge, providing just enough action to achieve effective scrap removal while minimizing unnecessary contact and associated wear on surfaces

Inventive Principle:
Principle #16Partial or excessive action

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 effectively removes scraps from punch holes, preventing degradation of notching quality and efficiency, and reduces wear on contact surfaces through line contact and controlled rotation angles.

Implementation Method 1

a restoring member connected to the pusher body and configured to rotate the pusher body in a reverse direction

Methodology Applied
Scientific EffectElastic force: Elasticity

Implementation Method 2

a pressing member connected to the trigger body and configured to rotate the trigger body in the reverse direction

Methodology Applied
Scientific EffectPressing force: Mechanical Force

Data Source

PatentEP4574365A1Electrode plate notching apparatus and electrode plate notching method using the same
Publication Date: 2025.06.25 SAMSUNG SDI CO LTD
  • EP4574365A1 patent drawingFigure 1
  • EP4574365A1 patent drawingFigure 2
  • EP4574365A1 patent drawingFigure 3

AI summary

An electrode plate (10) notching apparatus and an electrode plate (10) notching method using the same are disclosed. An electrode plate (10) notching apparatus includes a first mold (100) including a punch hole (131), a second mold (200) configured to vertically move above the first mold (100) and including a punch (230), a first body (300) coupled to the first mold (100) and spaced apart from the punch hole (131), a second body (400) coupled to the second mold (200) and facing the first body (300), a scrap pusher (500) movably arranged on the second body (400) and configured to discharge a scrap from the punch hole (131), and a trigger (600) arranged on the first body (300) and configured to move the scrap pusher (500) in conjunction with vertical movement of the second body (400).