Flux Applying Apparatus with Movable Filter for Continuous Operation
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Solution Overview
Problem
Existing flux applying apparatuses face productivity reduction due to the need to stop operations for filter exchange and incomplete exhaust of IPA vapor, as filters are typically placed above or below the nozzle, leading to residual flux and inefficiencies in gas exhaustion.
Innovation Solution
The apparatus features a movably positioned filtering unit within the intake and exhaust unit, allowing for filter exchange without stopping operations and optimizing chamber dimensions to enhance flux liquid flow and gas exhaustion efficiency, ensuring complete filtration and continuous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter is placed below the nozzle to filter the sprayed flux, then the flux base material can be removed, but the operator needs to stop injecting the flux liquid when exchanging the filter, reducing productivity
Solution Approach 1:
The exhaust unit is divided into a first chamber for flux liquid intake and a second chamber for gas exhaust, with the filtering unit positioned in the second chamber. This segmentation allows the filter to be exchanged without stopping the flux liquid injection process, as the filtering occurs in a separate chamber from the application process.
Solution Approach 2:
The patent introduces an intermediate exhaust duct system with a blower that creates negative pressure to draw flux vapor through the filter. This intermediary mechanism enables continuous operation by maintaining the filtering function independently of the flux injection process, allowing filter exchange without stopping productivity.
2Object-generated harmful factors
If an exhaust duct with a filter is placed above the nozzle, then the gas can be exhausted externally, but a part of the sprayed flux may remain in the applying apparatus below the nozzle
Solution Approach 1:
The patent changes the spatial arrangement by placing the filtering unit in the second chamber where gas flows horizontally through the filter before exhaust, rather than vertically above the nozzle. This dimensional change in the exhaust path ensures complete flux vapor removal while preventing residue accumulation in the application area.
Solution Approach 2:
The patent uses a blower to create negative pressure in the exhaust unit, drawing flux vapor through the filtering unit and ensuring complete removal of sprayed flux. This pneumatic mechanism prevents flux residue from remaining in the apparatus by maintaining continuous airflow through the filter.
3Device complexity
If the filtering unit is fixed in position, then the structure is simple, but the filter cannot be exchanged without stopping operations
Solution Approach 1:
The filtering unit is made movable within the exhaust unit, allowing it to be extracted in the direction parallel to the exhaust flow. This dynamic design enables the filter to be exchanged without stopping operations, while the overall structure remains relatively simple through guided linear movement rather than complex mechanisms.
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
Enables filter exchange without halting the apparatus, improving productivity by ensuring efficient filtration and exhaust of IPA vapor, reducing residual flux and operational interruptions.
Implementation Method 1
The intake and exhaust unit has a filtering unit that filters the flux liquid sucked through the intake port
Implementation Method 2
a blower that sucks the sprayed flux through negative pressure
Implementation Method 3
IPA included in the flux liquid volatilizes at room temperature
Data Source
AI summary
An applying apparatus that applies a flux liquid includes: a nozzle from which the flux liquid is injected; and an intake and exhaust unit that sucks the flux liquid injected from the nozzle through an intake port and exhausts a gas through an exhaust port. The intake and exhaust unit has a filtering unit that filters the flux liquid sucked through the intake port and through which the gas passes before the gas reaches the exhaust port. The filtering unit is movably provided within the intake and exhaust unit so that when installing/removing the filtering unit with respect to the intake and exhaust unit, the filtering unit moves in a direction substantially parallel to a direction in which the flux liquid is sucked through the intake port and in which the gas is exhausted through the exhaust port.