Detachable Grinding Disk Curved Plate High-Speed Stability

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Solution Overview

Problem

The existing methods for attaching a grinding disk to an electric grinder are complicated and prone to malfunctions due to inaccurate attachment, leading to vibrations and safety issues during high-speed rotation, and existing integrated solutions with high-strength materials are inefficient for industrial application.

Innovation Solution

A detachable grinding disk with a circular metal plate having a gradual curvature for secure attachment, featuring a through hole at the central axis for easy fastening and a grinding surface with a convex curvature to prevent overturning and ensure stable contact with the electric grinder.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a grinding paper is forcibly removed and reattached using adhesive, then the grinding paper can be replaced, but the attachment process becomes complicated and inaccurate

Engineering Contradiction:
Improvereusability of grinding diskVSAvoiddifficulty of attaching grinding paper
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The invention separates the grinding function from the disk by using a detachable grinding paper component. The disk body remains reusable while the grinding paper can be independently replaced, simplifying the replacement process and improving ease of operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The convex surface is pre-formed on the disk before the grinding paper is attached. This preliminary structural preparation ensures that when the grinding paper is attached, it automatically aligns correctly and adheres uniformly, eliminating positioning difficulties during the attachment process.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If grinding paper is attached to the disk, then grinding function is achieved, but vibrations occur during high-speed rotation due to inaccurate attachment

Engineering Contradiction:
Improvegrinding functionalityVSAvoidstability during rotation
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The invention introduces a convex surface (curved geometry) on the disk that corresponds to the concave shape of the grinding paper. This curved interface ensures uniform contact and adhesion across the entire grinding surface, preventing vibrations during high-speed rotation by eliminating gaps and misalignments.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The convex surface creates varying local contact pressures across the grinding paper interface. The curvature ensures that the entire surface maintains consistent contact with the disk, with optimized adhesion distribution that prevents localized detachment and vibration during operation.

Inventive Principle:
Principle #3Local quality

3Ease of manufacture

If a flat surface disk is used, then manufacturing is simple, but it causes difficulties in attaching to the disk surface of electric grinder

Engineering Contradiction:
Improvesimplicity of disk manufacturingVSAvoiddifficulty of attachment
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The invention adds a convex surface (curved geometry) to the otherwise simple disk structure. This curvature is specifically designed to match the concave shape of the grinding paper, creating a form-fit connection that dramatically improves attachment ease while adding minimal manufacturing complexity.

Inventive Principle:
Principle #14Spheroidality (Curvature)

4Strength

If high-strength material with high resistance to heat and stress is used, then durability is improved, but production efficiency decreases

Engineering Contradiction:
Improveresistance to heat and stressVSAvoidproduction efficiency
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The invention divides the grinding system into two separate components: a durable reusable disk body and a consumable grinding paper. This segmentation allows the disk to be manufactured once with high-strength materials for long-term durability, while the grinding paper is replaced as needed, significantly improving overall production efficiency without sacrificing strength.

Inventive Principle:
Principle #1Segmentation

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 solution enables easy attachment and detachment of the grinding disk with high adhesion efficiency, preventing overturning during high-speed rotation and ensuring a stable grinding surface, thus enhancing user safety and convenience.

Implementation Method 1

the plate part is formed to have a gradual curvature in such a way that a convex surface of the gradual curvature is formed toward the sanding part, thereby enabling the detachable grinding disk to be attached to the electric grinder closely, elastically

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS12172267B2Detachable grinding disk for electric grinder with high adhesion efficiency
Publication Date: 2024.12.24 BIN INSUN
  • US12172267B2 patent drawing
  • US12172267B2 patent drawing
  • US12172267B2 patent drawing

AI summary

The present invention discloses a detachable grinding disk for an electric grinder with high adhesion efficiency, the detachable grinding disk comprising: a plate part made of a circular metal plate; a sanding part on which a grinding member is formed so that one side of the plate part has a grinding surface; and a fastening part provided in a form of a through hole at a position of a central axis of the plate part to be easily fastened to the electric grinder, wherein the plate part is formed to have a gradual curvature in such a way that a convex surface of the gradual curvature is formed toward the sanding part, thereby enabling the detachable grinding disk to be attached to the electric grinder closely, elastically, and preventing overturning during high-speed rotation.