Rotating Disk Abrasive Supply Apparatus for Blasting Machines
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Solution Overview
Problem
Existing abrasive supply systems for blasting machines face challenges in maintaining a constant abrasive quantity due to fluctuations in abrasive tank levels and particle diameter, leading to inconsistent machining precision and increased maintenance costs, particularly with elastic abrasives that tend to bridge and reduce fluidity.
Innovation Solution
A rotating disk with cylindrical hole sections of equal diameter and stirring blades is immersed in the abrasive tank, allowing for precise control of abrasive flow and preventing bridging, ensuring a consistent abrasive supply by rotating at a constant speed and using compressed air to fill and empty the hole sections accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a drum with V-shaped grooves or rectangular indented sections is used to supply abrasive, then abrasive quantity can be controlled, but manufacturing precision is poor due to formation differences occurring at the time of manufacture
Solution Approach 1:
The invention uses a rotating disk with hole sections that copy the required abrasive volume geometry precisely. The hole sections are formed with high precision to match the exact volume needed, creating a master template that ensures consistent abrasive measurement regardless of manufacturing variations in traditional groove systems.
Solution Approach 2:
The invention changes the geometric parameter from surface grooves to volumetric holes, allowing precise control of abrasive quantity through the volume of the hole sections. This parameter change enables accurate volume definition that is less sensitive to manufacturing tolerances compared to groove depth control.
2Quantity of substance
If elastic abrasives are used, then abrasive supply is needed, but fluidity decreases due to bridging
Solution Approach 1:
The rotating disk imparts mechanical motion to the abrasive material, preventing particles from settling and forming bridges. The continuous rotation and associated vibrations keep the abrasive in a fluid state, ensuring consistent supply even with elastic materials that are prone to bridging in static conditions.
Solution Approach 2:
The system uses the rotation of the disk itself to generate the necessary motion and vibration that prevents bridging, without requiring external vibration sources. The abrasive serves its own fluidity needs through the mechanical action of the rotating holes passing through the material.
3Quantity of substance
If boron sliders are used for abrasive measurement, then abrasive quantity control is achieved, but maintenance cost increases
Solution Approach 1:
The invention replaces expensive boron sliders with a simpler rotating disk structure made from more economical materials. The disk with hole sections can be manufactured at lower cost and, if needed, replaced more easily, reducing overall maintenance expenses while maintaining abrasive control functionality.
Solution Approach 2:
The invention extracts the abrasive measurement function from the complex slider mechanism and concentrates it in the geometric design of the hole sections. This simplification removes the need for expensive slider materials and reduces maintenance requirements while preserving the essential measurement capability.
4Quantity of substance
If compressed air is used to blow abrasive, then abrasive is supplied to the blast gun, but abrasive may not be completely extracted from measurement sections
Solution Approach 1:
The rotating disk performs preliminary action by mechanically transporting the abrasive through the hole sections before compressed air extraction. This pre-positioning and mechanical conveyance ensures that abrasive is properly oriented and ready for complete extraction by the compressed air blow, improving extraction reliability.
Solution Approach 2:
The continuous rotation of the disk ensures that the abrasive flow is continuous and uninterrupted, allowing compressed air to consistently extract abrasive from the hole sections. The ongoing rotational motion maintains a steady supply that complements the compressed air extraction process, ensuring complete and reliable abrasive delivery.
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
This solution ensures a consistent abrasive supply to the blast gun, reducing fluctuations and maintaining fluidity even with elastic abrasives, while minimizing maintenance costs by eliminating the need for expensive boron sliders and preventing abrasive bridging.
Implementation Method 1
a rotating disk 20 having a plurality of hole sections 21, the rotating disk 20 rotating horizontally at a specified speed inside the abrasive tank 10
Implementation Method 2
the mixed fluid flow path 11 supplies a gas for supplying abrasive, and mixed fluid of the abrasive, to a blast gun
Implementation Method 3
a plurality of the stirring blades 22 are preferably provided, with, for example, rectangular plate bodies, or cylindrical bodies with a circular cross section, or rod shaped bodies, protruding above the rotating disk 20 at equal intervals in a circumferential direction of the rotating disk 20
Data Source
AI summary
To provide an apparatus for supplying a constant quantity of abrasive that can accurately control abrasive quantity supplied to a blasting machine.A rotating disk 20 that rotates in the horizontal direction is provided inside an abrasive tank 10, with a gap 3 being capable to rotate the rotating disk 20, being formed at an end 11a of a mixed fluid flow path 11 arranged on one surface of the rotating disk 20, and at an end 12a of a gas flow path 12 arranged facing other surface of the rotating disk 20 via the rotating disk 20 at the end 11a of the mixed fluid flow path 11. Hole sections 21 are provided in the rotating disk 20 on a rotation locus passing through the gap 3, equally spaced and passing through in a thickness direction of the rotating disk 20, with stirrer blades 22 protruding from the upper surface of the rotating disk 20, and the rotating disk 20 being immersed in abrasive stored inside the abrasive tank 10, except for a part positioned in the gap 3.