Multi-Row Coaxial Melt-Blown System for Easier Tube Alignment
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Solution Overview
Problem
Existing multi-row coaxial melt-blown systems face significant challenges in maintaining the coaxiality of the stability and assembly of components of the multi-row coaxial melt-blown systems, including the need for precise alignment and assembly of multiple plates, leading to complexity and difficulty in maintenance and conversion of non-woven fabric production.
Innovation Solution
A multi-row coaxial melt-blown system with a support structure that includes a support and a box, allowing for easy assembly and disassembly of components, and a conversion kit that enables quick modification of tube configurations, reducing the need for precise alignment and simplifying maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple plates and masks are used to support tubes and allow air passage, then the system can achieve proper coaxial alignment and gas distribution, but the device complexity increases and assembly becomes difficult
Solution Approach 1:
The patent combines multiple separate plates (intermediate plate, external mask, support plate) into a single integrated component. This single component performs multiple functions: supporting the tubes, allowing air passage through integrated channels, and maintaining coaxial alignment. The merging eliminates the need for precise assembly of multiple separate parts while preserving all necessary functions.
Solution Approach 2:
The integrated component serves multiple functions simultaneously: it acts as a support structure for tubes, provides gas distribution channels, maintains coaxial alignment, and serves as an air passage way. This multi-functionality replaces what previously required multiple separate components, simplifying the overall device structure.
2Reliability
If multiple plates with precise alignment are used, then proper gas distribution and tube support are achieved, but maintenance and conversion become difficult and time-consuming
Solution Approach 1:
The patent divides the system into two main segments: a fixed support structure and a removable box containing the tubes and integrated component. This segmentation allows the box to be easily removed for maintenance or conversion without affecting the support structure, making maintenance and conversion simple while preserving reliable gas distribution through the integrated component.
Solution Approach 2:
The system transitions from a static multi-plate structure to a dynamic configuration where the box can be easily removed and reinstalled. This dynamic design enables quick maintenance and conversion operations while the integrated component within the box maintains reliable gas distribution when in place.
3Manufacturing precision
If tubes pass through multiple plates with slits for gas distribution, then coaxiality can be maintained, but the assembly requires considerable force and precision
Solution Approach 1:
The patent merges the tube support function with the gas distribution function into a single integrated component. The tubes are secured within this integrated structure, which provides alignment features that maintain coaxiality without requiring the tubes to pass through multiple separate plates. This eliminates the need for high assembly forces while preserving precise alignment.
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
Facilitates easy assembly and disassembly of components, reduces maintenance complexity, and allows for quick conversion of non-woven fabric production without losing coaxiality, maintaining high processing efficiency.
Implementation Method 1
the stretching of polymer coming out of tubes, arranged in rows, through air that coaxially passes from outside the tube and pushes the fibre downwards
Implementation Method 2
capable of housing at least part of said coaxially passing tubes within the holes in such a way as to allow diffusion of polymeric fluid and, at the same time, to allow diffusion of air or gas from at least part of the holes
Data Source
Figure 1~2
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AI summary
It is provided a multi-row coaxial melt-blown system (1) comprising a support (2) including one or more first ducts (20) configured to convey polymeric fluid parallel to a delivery direction (2a) and at least one second duct (21) configured to convey air or gas, a box (3) removably constrained to the support (2) and including a plurality of acceleration ducts (30) extending parallel to the delivery direction (2a) comprising tubing (10) in fluid passage connection with one or more first ducts (20) and configured to distribute the polymeric fluid, first holes (31) extending parallel to the delivery direction (2a), centred and spaced with respect to the acceleration ducts (30) along the delivery direction (2a) and configured to house each part of a respective tube (10), second holes (32) extending parallel to the delivery direction (2a) and capable of allowing the passage of air or gas, and a slit (33) extending transversely to the delivery direction (2a) between the acceleration ducts (30) and the first holes (31) in fluid passage connection with the second holes (32), wherein the support (2) comprises a housing (22) configured to contain the box (3) and the slit (33) extends in the box (3) from side to side so as to be in fluid passage connection with the second duct (21) and configured to convey air or gas from the second duct (21) to the second holes (32).