Static Eliminator for Parts Feeder Using Negative Pressure Air Stream
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional static eliminators for parts feeders, when intensified to enhance efficiency, inadvertently suck up works along with ions, causing movement hindrance and contamination due to vibration and chaff generation.
Innovation Solution
A static eliminator positioned above the parts feeder generates a circling air stream with negative pressure and ionized air to lift and neutralize static charges on works, preventing electrostatic attraction and allowing smooth movement while removing dust.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vacuum suction is intensified to enhance the efficiency of static elimination, then static removal efficiency is improved, but works are sucked along with ions causing movement hindrance
Solution Approach 1:
The invention divides the suction function into two separate nozzles: one dedicated to suctioning ions for static elimination, and another dedicated to suctioning dust. This segmentation prevents works from being sucked while maintaining effective static removal, as each nozzle is optimized for its specific function without interfering with works movement.
Solution Approach 2:
The invention introduces a dust suction nozzle as an intermediary component that handles dust removal separately from the ion suction process. This mediator allows the ion suction to focus on static elimination while the dust suction handles contamination, preventing works from being disturbed by intensified vacuum suction.
2Productivity
If vacuum suction is intensified to enhance the efficiency of static elimination, then static removal efficiency is improved, but parts feeder vibrates and generates chaff contaminating works
Solution Approach 1:
By segmenting the suction functions into separate nozzles for ions and dust, the system achieves effective static removal without requiring excessive suction force that would cause vibration and chaff generation. The dedicated dust suction nozzle handles contamination separately, allowing gentler ion suction.
Solution Approach 2:
The dust suction nozzle acts as an intermediary that captures dust and chaff before they can contaminate works, while the ion suction nozzle focuses on static elimination without generating harmful vibrations. This intermediary structure prevents chaff contamination while maintaining static removal efficiency.
3Productivity
If air is suctioned from below through fine openings to remove static, then static elimination is achieved, but works movement is hindered
Solution Approach 1:
Instead of suctioning air from below through the bowl as in conventional designs, the invention positions suction nozzles above the works to suction ions and dust downward. This inverted approach removes static without creating upward suction forces that would hinder works movement along the conveyor.
Solution Approach 2:
The invention introduces ion suction nozzles as intermediaries positioned above the works to remove static charges without directly interfering with works movement. The separate dust suction nozzle further mediates dust removal, allowing works to move smoothly while achieving effective static elimination.
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 static from parts feeders without hindering work movement, ensuring smooth operation and dust removal.
Implementation Method 1
air is injected from the upper portion of a hollow cylindrical or truncated conical cup to generate an air stream of negative pressure circling within the cup so as to lift the works up in the air
Implementation Method 2
ionized air sucked or introduced into the cup to remove the static from the works thus lifted
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The static eliminator for parts feeder comprises a hollow cylindrical or truncated conical cup into which air is injected from the upper portion thereof to generate an air stream of negative pressure circling within the cup so as to lift the works up in the air, and an ionized air introduced into the cup to remove the static from the works thus lifted. The static eliminator is disposed above the upper portion of the parts feeder in a space more than the height of the work. The static eliminator is positioned just in front of the place in which the works stop moving due to the static charge.