Diamond Wire Tension Control for Synchronized Quarry Cutting

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Solution Overview

Problem

Existing diamond wire cutting machines for ornamental rock quarries face challenges in maintaining consistent tension and synchronizing the movements of vertical and horizontal arms, which affects the efficiency and quality of rock cutting.

Innovation Solution

A cutting controller system that controls the tensioning and synchronization of diamond wire machines by managing the central tensioning column, vertical, and horizontal movement arms, using a hydraulic system to maintain constant tension and adjust arm movements based on real-time motor consumption and operator inputs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the diamond wire machine processes larger masses of rock to increase productivity, then the output increases, but maintaining constant tension and synchronization becomes more difficult

Engineering Contradiction:
Improverock processing outputVSAvoidtension consistency
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent implements a feedback control system using encoders on the traction wheel and arm actuators to continuously monitor position and tension. The controller receives signals from these encoders and automatically adjusts hydraulic cylinder extension to maintain constant diamond wire tension, enabling reliable operation during high-productivity processing of large rock masses

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-adjustment through automated feedback control without requiring manual intervention. The controller automatically compensates for tension variations and synchronization errors by adjusting actuator positions based on encoder feedback, allowing the machine to maintain reliability independently during extended high-productivity operation

Inventive Principle:
Principle #25Self-service

2Productivity

If the diamond wire machine processes larger masses of rock to increase productivity, then the output increases, but synchronizing arm movements becomes more complex

Engineering Contradiction:
Improverock processing outputVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent combines multiple control functions into a single integrated controller that manages traction wheel rotation, vertical arm movement, and horizontal arm positioning. This unified control system receives feedback from all encoders and coordinates all actuators simultaneously, simplifying the control architecture while enabling synchronized operation during high-productivity processing of large rock masses

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If the tensioning is maintained constant throughout the cutting process, then the cutting quality improves, but the system requires more complex control mechanisms

Engineering Contradiction:
Improvecutting qualityVSAvoidcontrol system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent uses encoder feedback from the traction wheel and arm actuators to create a closed-loop control system. The controller continuously monitors actual positions and compares them with target positions, automatically adjusting hydraulic cylinder extension to maintain constant diamond wire tension throughout the cutting process, thereby ensuring high cutting quality without requiring overly complex manual control mechanisms

Inventive Principle:
Principle #23Feedback

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

Ensures consistent diamond wire tension and synchronized arm movements, maintaining the perimeter length and improving cutting quality and efficiency by adjusting tension and speed according to rock hardness and position, thereby enhancing productivity in ornamental rock quarrying.

Implementation Method 1

The tensioning of the diamond wire (24) is maintained through a hydraulic system that moves a central tensioning column (1)

Methodology Applied
Scientific EffectHydraulic system: Hydraulic Press

Data Source

PatentEP3804893A1System and method for controlling the tensioning and synchronizing the movements of a diamond wire machine
Publication Date: 2021.04.14 FRAVIZEL - EQUIPAMENTOS METALOMECANICOS LDA
  • EP3804893A1 patent drawingFigure 1
  • EP3804893A1 patent drawingFigure 2
  • EP3804893A1 patent drawingFigure 3

AI summary

The present invention concerns a system and method for controlling the tensioning and synchronization of diamond wire machine movements that allows for the correct operation of the diamond wire machine.