Grinding Wheel Cutting Apparatus for Master Alloy Rod Weight Control

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Solution Overview

Problem

Conventional cutting methods for master alloy rods result in weight errors due to variations in outer diameter, leading to waste and insufficient shrinkage compensation, and involve heavy labor, high pollution, and low automation.

Innovation Solution

A grinding wheel cutting apparatus that uses a laser distance sensor to measure the outer diameter of the rod workpiece, determines the cut-off segment length based on material density and required weight, and performs precise, circular cutting to ensure accurate weight control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If fixed-length cutting is used for master alloy rods, then cutting speed is improved, but weight precision deteriorates due to outer diameter variations

Engineering Contradiction:
Improvecutting speedVSAvoidweight precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent changes the cutting parameter from fixed length to variable length based on real-time outer diameter measurements. The cutting length is dynamically adjusted according to the measured outer diameter to ensure constant weight, resolving the contradiction between cutting speed and weight precision.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent implements a feedback control system where outer diameter measurements are continuously taken, and the cutting length is adjusted based on this feedback. This closed-loop control ensures that weight precision is maintained while preserving cutting efficiency.

Inventive Principle:
Principle #23Feedback

2Device complexity

If conventional cutting methods are used, then device complexity is reduced, but labor intensity and pollution increase

Engineering Contradiction:
Improvedevice simplicityVSAvoidlabor intensity
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent replaces manual mechanical cutting operations with an automated system that integrates laser measurement and controlled grinding wheel cutting. This substitution reduces labor intensity and improves safety while managing the increased device complexity through integrated automation.

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

Solution Approach 2:

The system performs self-measurement and self-adjustment of cutting parameters, reducing the need for manual intervention and operation complexity while maintaining simplicity in the overall process flow.

Inventive Principle:
Principle #25Self-service

3Productivity

If grinding wheel passes through shrinkage cavity, then cutting is completed, but contamination occurs affecting quality

Engineering Contradiction:
Improvecutting completionVSAvoidcontamination
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent performs preliminary measurement of the outer diameter before cutting, allowing the cutting depth to be pre-calculated to stop before reaching the shrinkage cavity. This preliminary action prevents contamination while ensuring complete cutting separation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system takes preliminary measures to prevent the harmful effect of contamination by calculating and controlling the cutting depth to avoid the shrinkage cavity entirely, thus preventing the harmful action before it can occur.

Inventive Principle:
Principle #9Preliminary anti-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 apparatus achieves precise weight control of cut segments, reduces labor intensity, improves safety, and enhances automation, minimizing contamination and waste in the cutting process.

Implementation Method 1

a first laser distance sensor, communicatively coupled to a master controller, is configured to obtain an outer diameter of a rod workpiece

Methodology Applied
Scientific EffectLaser: Laser

Implementation Method 2

grinding wheel cutting apparatus... performs precise, circular cutting

Methodology Applied
Scientific EffectAbrasion: Abrasion

Data Source

PatentEP3950225B1Grinding wheel cutting apparatus and cutting method
Publication Date: 2026.02.18 BEIJING BIAM ALLOYS
  • EP3950225B1 patent drawingFigure 1
  • EP3950225B1 patent drawingFigure 2
  • EP3950225B1 patent drawingFigure 3~4

AI summary

The present invention provides a grinding wheel cutting apparatus comprising a first laser distance sensor (101), a master controller and a grinding wheel. The first laser distance sensor (101) is communicatively coupled to the master controller. The laser distance sensor (101) is configured to obtain an outer diameter of a rod workpiece. The master controller is configured to determine a segment length of a segment to be cut from the rod workpiece based on the outer diameter, a material density of the rod workpiece and a preset segment weight. The master controller is configured to perform a control to circularly cut the rod workpiece with the grinding wheel according to the segment length. The present invention further relates to a cutting method using the grinding wheel cutting apparatus. In the present invention, the cutting and blanking are controlled by the cutting apparatus in a quantitative manner, and the weight of each rod workpiece segment cut off from the rod workpiece is precisely controlled, therefore the weight deviation of the rod workpiece segments can be suppressed, utilization efficiency of the master alloy can be improved, and the requirements on the pressing/breaking equipment can be reduced.