Air-blowing roller with tangential outlets for dust removal
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Solution Overview
Problem
Existing dust removal methods are ineffective for soft, porous, or coated workpieces as hard dust becomes embedded in the surface, leading to quality issues.
Innovation Solution
An air-blowing roller with adjustable air outlets that change direction from perpendicular to parallel to the workpiece surface during rotation, combined with spiral ducts and grooves for uniform airflow, ensuring dust is lifted and prevented from re-embedding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If common dust removal methods (air-blowing, negative pressure, adhesion) are used on soft, porous, or coated workpieces, then the workpiece surface is treated, but hard dust becomes embedded in the surface and cannot be removed effectively
Solution Approach 1:
The air outlet direction is made dynamically adjustable rather than fixed. The air outlet can change its blowing direction adaptively to optimize dust removal while preventing dust embedding in soft, porous, or coated surfaces. This dynamic adjustment allows the system to respond to different workpiece conditions and dust types, resolving the contradiction between effective dust removal and preventing harmful dust embedding.
Solution Approach 2:
The air outlet direction parameter is changed from a fixed state to a variable state. By adjusting the blowing direction angle and air flow parameters, the system can effectively remove dust without embedding it into the workpiece surface. This parameter change enables the same air blowing mechanism to adapt to different dust removal scenarios and prevent the harmful effect of dust embedding.
2Productivity
If air outlets are arranged to blow dust away from the surface, then dust removal efficiency improves, but the structure becomes more complex
Solution Approach 1:
The air outlet structure is designed to perform multiple functions: it can blow dust away from the surface, adjust its direction adaptively, and work effectively with different workpiece types. By integrating direction adjustment capability into the air outlet itself rather than adding separate adjustment mechanisms, the system achieves high dusting efficiency without significantly increasing structural complexity.
Solution Approach 2:
The air outlet structure is designed to automatically adjust or position itself to achieve optimal dust removal. The structure may use the air flow itself or simple mechanical means to position the outlet direction correctly, eliminating the need for complex external control systems or additional components, thereby maintaining simplicity while improving productivity.
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
Effectively removes dust from workpieces without embedding it further, achieving high dusting efficiency and preventing dust accumulation.
Implementation Method 1
the airflow from the air outlets is endowed with an initial speed of leaving the surface of the workpiece-to-be-cleaned when being exhausted along a tangential direction of the roller body, thereby lifting the dust from the surface of the workpiece-to-be-cleaned
Data Source
Figure 1~2
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Figure 5~6
AI summary
An air-blowing roller and a dust removal apparatus and method are disclosed. The air-blowing roller (121) includes: a roller body (1211), where a plurality of air outlets (12122) are disposed on an outer peripheral surface (12111) of the roller body (1211), the plurality of air outlets (12122) are arranged along an axial direction of the roller body (1211), an air exhaust direction of the air outlets (12122) is tangent to the outer peripheral surface (12111) of the roller body (1211), and air exhaust directions of the plurality of air outlets (12122) are consistent. The dust removal apparatus (100) includes a conveyance mechanism (110), an air-blowing roller assembly (120), and an air intake roller assembly (130). The air-blowing roller and the dust removal apparatus and method achieve a good dusting effect.