Telescopic Cable Saw Alignment for Precise Stone Block Cutting

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Solution Overview

Problem

Existing plunge-cut wire saws and wire saws are limited in making precise cuts, especially in solid workpieces like natural stones, as they cannot cut into mountains and require additional tools for precise alignment and adjustment.

Innovation Solution

A plunge-cut wire saw with telescopic longitudinal arms and deflection rollers that can be adjusted to change the cutting width and height, allowing for precise cuts and alignment, and a cable tensioner system to maintain tension without opening the saw wire, enabling horizontal, vertical, and oblique cuts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a wide belt with diamond segments is used as the cutting tool, then the cutting power is improved, but the cutting precision deteriorates

Engineering Contradiction:
Improvecutting powerVSAvoidcutting precision
Core Design Contradiction:
PowerVSManufacturing precision

Solution Approach 1:

The cutting tool is segmented into two distinct components: a wide belt with diamond segments for power cutting and a separate thin guide wire for precision guidance. The guide wire runs through the wider belt, allowing the system to combine the cutting power of the wide belt with the precision of the thin guide wire, thereby resolving the contradiction between cutting power and cutting precision.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If the longitudinal arms are made fixed, then the structural stability is improved, but the adaptability to different cutting widths deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidadaptability to different cutting widths
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The longitudinal arms are designed with telescopic capability, allowing them to extend or retract to accommodate different cutting widths. This dynamic adjustment mechanism maintains structural stability during operation while providing adaptability to various cutting requirements, resolving the contradiction between stability and versatility.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the sawing unit is made compact, then the ease of transport is improved, but the cutting capacity deteriorates

Engineering Contradiction:
Improveease of transportVSAvoidcutting capacity
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The telescopic longitudinal arms can be retracted into a compact configuration for transport, similar to a nested doll structure. When deployed at the work site, the arms extend to provide the necessary cutting capacity. This nesting principle allows the sawing unit to be both easy to transport and capable of large-scale cutting operations.

Inventive Principle:
Principle #7Nested doll (Nesting)

4Manufacturing precision

If additional tools are used for alignment and adjustment, then the cutting precision is improved, but the device complexity increases

Engineering Contradiction:
Improvecutting precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The alignment and adjustment functions are merged into the longitudinal arms themselves through integrated telescopic mechanisms and deflection rollers. Rather than requiring separate external tools for alignment, the arms provide built-in adjustment capabilities that simplify the overall device structure while maintaining high cutting precision.

Inventive Principle:
Principle #5Merging (Combining)

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

Enables precise and efficient cutting of solid workpieces by allowing adjustable cutting dimensions and orientations, facilitating the removal of blocks from mountains with improved operational safety and versatility.

Implementation Method 1

a sawing wire (1) provided with diamond segments

Methodology Applied
Scientific EffectAbrasion: Abrasion

Implementation Method 2

at least two deflection rollers (3), in which the saw wire (1) is guided

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 3

the longitudinal extension of the two longitudinal arms (2) can be changed, so that the spatial extension of the guide device can be changed

Methodology Applied
Scientific EffectMechanical Advantage: Mechanical Advantage

Implementation Method 4

the plunge-cut cable saw according to the invention can also have a cable tensioner for the cable store

Methodology Applied
Scientific EffectTension: Tension

Data Source

PatentEP2866993B1Cable saw
Publication Date: 2022.05.04 HATZER MARKUS
  • EP2866993B1 patent drawingFigure 1
  • EP2866993B1 patent drawingFigure 2

AI summary

The invention relates to a cable saw for extracting, for example, a block of stone from a mountain, comprising a sawing unit comprising a saw cable (1) which is provided with, in particular, diamond sections, and a guide device for the saw cable (1) which is driven. Said guide device comprises at least two longitudinal arms (2) which are arranged at a distance from each other and on which the saw cable (1) is guided. The cable saw is arranged in front of a workpiece which is to be quarried and the at least two longitudinal arms (2) are aligned with respect to the boreholes provided in the workpiece and are introduced into the boreholes.