Diamond Wire Cutting Machine with High-Pressure Cleaning System

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Solution Overview

Problem

Diamond wire machines for cutting natural or artificial stone face limitations in cutting speed and efficiency due to heat generation, excessive diamond consumption, and inefficient swarf removal, which affects performance and cleanliness, leading to reduced cutting precision and increased maintenance needs.

Innovation Solution

A diamond wire machine with multiple closed-loop wires and a comprehensive cleaning system featuring multiple washing areas with high-pressure elliptical nozzles and a filtration and pump assembly to efficiently remove swarf and recirculate cleaning water, optimizing cutting speed and reducing diamond consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the advancing speed of the diamond wire is increased to improve cutting efficiency, then productivity increases, but heat generation increases causing excessive diamond consumption

Engineering Contradiction:
Improvecutting speedVSAvoiddiamond consumption
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The patent applies preliminary cooling action by spraying water onto the diamond wire before it enters the cutting zone and continuously during cutting. This pre-cooling prevents excessive heat buildup that would otherwise cause diamond detachment and consumption, allowing higher advancing speeds without increasing diamond loss

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Water acts as an intermediary substance between the diamond wire and the stone block. It serves dual functions: cooling the wire to prevent diamond detachment and flushing away swarf. This intermediary enables sustained high-speed cutting by managing heat and debris removal

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If multiple diamond wires are used simultaneously to increase productivity, then cutting speed improves, but swarf accumulation increases affecting wire cleanliness

Engineering Contradiction:
Improvecutting speedVSAvoidwire cleanliness
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent extracts swarf from the cutting zone by implementing a water flow system that flushes removed material away from the diamond wires. The water current actively removes swarf that would otherwise accumulate on the wires, maintaining cleanliness even when multiple wires operate simultaneously

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses hydraulic action through water spray and flow to clean the diamond wires. High-pressure water jets and continuous water flow remove swarf accumulation, preventing the reliability issues that would result from dirty wires in multi-wire cutting operations

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Loss of substance

If cooling water is sprayed into the cuts to remove swarf, then swarf removal improves, but heat generation limits the cutting speed

Engineering Contradiction:
Improveswarf removalVSAvoidcutting speed
Core Design Contradiction:
Loss of substanceVSSpeed

Solution Approach 1:

The patent applies preliminary cooling before significant heat buildup occurs by positioning water spray nozzles to cool the diamond wire and cutting zone in advance. This proactive cooling allows faster cutting speeds without exceeding thermal limits that would hinder swarf removal

Inventive Principle:
Principle #10Preliminary 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 system enhances cutting speed by 10-20% and extends diamond wire lifetime by minimizing diamond consumption and swarf-related wear, while maintaining environmental sustainability through effective filtration and reduced swarf recirculation.

Implementation Method 1

punti di lavaggio ad alta pressione per rimuovere la polverosità dalla macchina

Methodology Applied
Scientific EffectJet Erosion: Jet Erosion

Implementation Method 2

impianto di filtraggio e pompaggio per il riciclo dell'acqua

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 3

impianto di filtraggio e pompaggio per il riciclo dell'acqua

Methodology Applied
Scientific EffectPumping: Pump

Data Source

PatentEP2512715B1Diamond wire cutting machine for natural and artificial stone with wire cleaning plant
Publication Date: 2015.03.11 PEDRINI SPA AD UNICO SOCIO
  • EP2512715B1 patent drawingFigure 1
  • EP2512715B1 patent drawingFigure 2
  • EP2512715B1 patent drawingFigure 3~5

AI summary

A diamond wire machine for cutting natural or artificial stone, comprising: water distribution system (12) for cooling within the cut made by the diamond wire in the stone; at least one closed loop diamond wire (3) which, following a closed line of movement, repeats the cut during its movement deeper in to the stone; rotating organs (4, 5) for the support, motorization and tension of the diamond wire; it presents a further cleaning system for the diamond wire with at least one washing area (13) immediately after the cut and before, during the run of the wire, in relation to the first organ of support and motorization (4) of the said wire, which the wire comes into contact with after the cut; the cleaning system comprising a filtration and pump assembly (19) for the recirculation of water that supplies the washing area at high pressure. Forms of construction are described with more cleaning areas than the cleaning areas said above and the filtration and pump assembly for the recirculation of cleaning water.