Loop-Path Processing Units for High-Speed Ribbon Patterning

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Solution Overview

Problem

In the manufacturing of electrochemical cells, the feed rate of ribbon-like conductive materials relative to processing units limits production capacity, especially when creating small details like patterns. This requires a slow feed rate to ensure accurate processing, leading to overall slowdowns in production lines and potential tension issues in the ribbon.

Innovation Solution

The solution involves moving both the ribbon-like article and the operating units along a loop path, with the speed of the operating units varying depending on their position. This allows for a higher feed rate of the ribbon without compromising processing accuracy, as the operating units can adjust their speed to match the ribbon's movement during processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the feed rate of the ribbon-like article is increased to improve productivity, then production capacity increases, but the manufacturing precision of processing operations deteriorates

Engineering Contradiction:
Improveproduction capacityVSAvoidprocessing accuracy
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The operating unit is made movable along a loop path instead of being stationary, allowing its position and speed to be dynamically adjusted. This enables the system to accommodate higher ribbon feed rates while maintaining processing precision through real-time speed matching between the operating unit and the ribbon transport.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The speed of the operating unit is changed as a variable parameter depending on its position along the loop path. By adjusting the operating unit's speed dynamically, the system maintains optimal relative speed between the processing tool and the ribbon material, resolving the contradiction between high feed rate and processing accuracy.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If the feed rate of the ribbon-like article is reduced to improve processing precision, then manufacturing accuracy improves, but productivity decreases

Engineering Contradiction:
Improveprocessing accuracyVSAvoidproduction capacity
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The operating unit moves along a loop path with variable speed, allowing the system to maintain high ribbon feed rates while ensuring processing accuracy is preserved through dynamic speed adjustment of the operating unit to match ribbon transport speed.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If the ribbon-like article is slowed down during processing to improve accuracy, then manufacturing precision improves, but tension states increase compromising quality

Engineering Contradiction:
Improveprocessing accuracyVSAvoidtension states
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The operating unit's speed is dynamically adjusted to match the ribbon's transport speed, allowing continuous high-speed processing without slowing down the ribbon. This eliminates tension states that would otherwise occur during deceleration, while still maintaining processing accuracy through synchronized motion.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The stationary mechanical processing system is replaced with a moving operating unit that travels along a loop path. This substitution allows the processing to occur at any position along the path, enabling continuous processing without mechanical stopping or slowing of the ribbon transport.

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

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 approach enables continuous and higher-speed processing of ribbon-like articles, increasing production line productivity while maintaining the precision required for pattern creation in electrochemical cell manufacturing.

Implementation Method 1

Such processing can be done by means of laser heads which operate on the concerned portion of the ribbon so as to create the desired pattern

Methodology Applied
Scientific EffectLaser: Laser

Data Source

PatentUS20250128356A1Apparatus and method for non-contact processing a ribbon-like article, preferably for producing electrochemical cells
Publication Date: 2025.04.24 GD SPA
  • US20250128356A1 patent drawing
  • US20250128356A1 patent drawing
  • US20250128356A1 patent drawing

AI summary

An apparatus for non-contact processing a ribbon-like article includes a conveying device of the ribbon-like article including an inlet section, an outlet section and a connecting part, and at least two operating units configured to perform non-contact processing on the ribbon-like article, the operating units being movable along a loop path. The apparatus also includes a device for varying the speed of movement of said operating units configured in such a way as to vary the speed of each of the operating units, individually, depending on a position thereof along the loop path.