Glass Sheet Shuttle Control for Wear and Energy Reduction

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Solution Overview

Problem

The flat glass industry faces challenges with wear and high energy consumption due to the frequent rearrangement and movement of glass sheets and insulating glass panes, particularly during cutting, grinding, and tempering processes, where high speeds and accelerations lead to increased friction, wear, and energy use, despite the need for efficient logistics to maintain productivity.

Innovation Solution

The implementation of a system utilizing fuzzy logic in combination with predictive analysis and sensor data to optimize the kinematic parameters of shuttles and storage modules, allowing for adaptive speed and acceleration adjustments to reduce wear and energy consumption, while ensuring efficient movement and rearrangement of glass elements between workstations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If high speeds and accelerations are used to move glass sheets and insulating glass panes between workstations, then productivity is improved, but wear on mechanical components and energy consumption increase

Engineering Contradiction:
ImproveproductivityVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The system dynamically adjusts the speed and acceleration parameters of shuttles based on real-time conditions. The control unit receives data from sensors monitoring the state of glass elements and workstations, then optimizes kinematic parameters to balance productivity with energy efficiency and wear reduction, rather than operating at constant high speeds

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system implements a feedback loop where sensors continuously monitor the position, state, and conditions of glass elements and workstations. This data is fed to the control unit which adjusts shuttle speeds and accelerations in real-time, creating a closed-loop control system that optimizes energy consumption while maintaining productivity

Inventive Principle:
Principle #23Feedback

2Productivity

If high speeds and accelerations are used to move glass sheets and insulating glass panes between workstations, then productivity is improved, but wear on mechanical components increases

Engineering Contradiction:
ImproveproductivityVSAvoidwear on mechanical components
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system dynamically adjusts the speed and acceleration parameters of shuttles based on real-time conditions. The control unit receives data from sensors monitoring the state of glass elements and workstations, then optimizes kinematic parameters to balance productivity with wear reduction, rather than operating at constant high speeds

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system prepares and optimizes movement parameters in advance to prevent excessive wear. By predicting required movements and pre-calculating optimal speed profiles, the system avoids sudden accelerations and decelerations that would increase mechanical stress and wear on components

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Adaptability or versatility

If manual rearrangement using racks is used, then flexibility in handling different glass formats is improved, but labor intensity and time consumption increase

Engineering Contradiction:
Improveflexibility in handling different glass formatsVSAvoidtime consumption
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The automated system performs rearrangement operations autonomously without manual intervention. The shuttles automatically transport glass elements between workstations and storage zones, and the control unit autonomously manages the logistics coordination, eliminating the need for manual rack-based rearrangement while maintaining flexibility in handling various formats

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system replaces manual mechanical rack-based rearrangement with an automated shuttle-based transport system. The mechanical system uses motorized shuttles moving along rails to transport glass elements, substituting human labor with automated mechanical systems that are both faster and equally flexible in handling different formats

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

Data Source

PatentEP3850449B1Automatic device and automatic method to move and rearrange sheets of glass and panes of insulating glass
Publication Date: 2024.04.10 FOREL SPA
  • EP3850449B1 patent drawingFigure 1
  • EP3850449B1 patent drawingFigure 2
  • EP3850449B1 patent drawingFigure 3

AI summary

Automatic device and automatic method to move and rearrange sheets of glass and panes of insulating glass in departments for working sheets of glass and panes of insulating glass in order to distribute these elements based on the work logic of each work machine, in particular some based on the criterion of obtaining target formats using the same source format and most combining different source formats to obtain one target product. The innovation consists in actuating the movements optimizing the kinematics of the speeds and accelerations of the moving components, without compromising the functionality and productivity of the work machines, so as to reduce the wear of the mechanisms and energy consumption.