Recessed Nozzle Assembly for Adhesive Application on Folded Substrates
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Solution Overview
Problem
Existing nozzle arrangements for applying thermoplastic adhesives to substrates with complex geometries, particularly folded areas, require rotational movement and cannot maintain a minimal distance, leading to uneven application and potential contact with the substrate.
Innovation Solution
A nozzle arrangement with recessed outlet openings angled obliquely relative to the substrate movement direction, allowing for even application without rotation, and incorporating parallel outlet openings for adhesive and shaping air to enhance pattern precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the nozzle arrangement is rotated to apply adhesive on folded areas of substrates, then the adhesive can reach complex geometry areas, but the system complexity increases and minimal distance cannot be maintained
Solution Approach 1:
The outlet openings are arranged in multiple rows extending in the direction of movement, allowing the nozzle arrangement to cover folded areas by utilizing the movement dimension rather than rotation. This dimensional approach enables adhesive application on complex geometries while maintaining a compact, rotation-free system.
Solution Approach 2:
The outlet openings are divided into multiple rows (first row, second row, third row) with different functions (adhesive, shaping air, additional adhesive). This segmentation allows each row to serve its specific purpose while collectively solving the problem of covering folded areas without rotation.
2Area of stationary object
If the outlet openings protrude beyond the end face to improve spray angle, then the spray pattern coverage increases, but the nozzle arrangement contacts the substrate and cannot maintain minimal distance
Solution Approach 1:
The outlet openings are nested within recesses formed in the end face of the base body. This nesting allows the outlet openings to be positioned at an optimal distance from the end face, enabling adequate spray angle and coverage while preventing the nozzle arrangement from contacting the substrate.
Solution Approach 2:
Instead of protruding outward in one dimension, the outlet openings are positioned in recesses that extend in the direction of movement (another dimension). This allows the spray pattern to achieve adequate coverage angle while the overall nozzle arrangement maintains minimal distance from the substrate.
3Manufacturing precision
If multiple outlet openings are arranged alternately for adhesive and shaping air, then the pattern precision improves, but the device complexity increases
Solution Approach 1:
The outlet openings are segmented into distinct rows: first row for adhesive, second row for shaping air, and third row for additional adhesive. This segmentation provides precise control over the spray pattern while organizing the complexity into a systematic, manageable structure rather than alternating arrangements.
Solution Approach 2:
Instead of alternating outlet openings in a single row, the different功能的 openings are arranged in parallel rows extending in the direction of movement. This row-based arrangement in another dimension achieves pattern precision while simplifying the overall device structure and reducing complexity.
4Manufacturing precision
If the nozzle arrangement is moved closer to the substrate to improve application precision, then the edge sharpness increases, but the system cannot accommodate folded areas without rotation
Solution Approach 1:
The outlet openings are arranged in multiple rows extending in the direction of movement, enabling the nozzle arrangement to cover folded areas by utilizing the movement dimension. This allows the nozzle to maintain a close, fixed position for sharp edges while still accommodating complex geometries through the multi-row configuration.
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 uniform adhesive application on complex substrates without rotation, preventing protrusion and maintaining distance, enhancing edge sharpness and reducing oscillation for a fine, streak-free pattern.
Implementation Method 1
the at least one first outlet opening is formed in the recessed area of the end face of the base body such that the adhesive can be discharged from the at least one first outlet opening in a direction that is oblique with respect to the extension direction of the end face of the base body
Implementation Method 2
incorporating parallel outlet openings for adhesive and shaping air to enhance pattern precision
Implementation Method 3
a recessed area is formed in the end face of the base body, wherein at least one first outlet opening... is formed in the recessed area of the end face of the base body
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The invention relates to a nozzle arrangement (1) for applying fluids (20), in particular thermoplastic materials, to a substrate (21), wherein the nozzle arrangement (1) has a base body (14) with an end face, which is preferably interchangeably connectable to a mounting area of a distributor (30). According to the invention, it is particularly provided that a recessed area (3) is formed in the end face of the base body (14), wherein at least one first outlet opening (4) and preferably a plurality of adjacent first outlet openings (4) for the fluid (20) to be applied to the substrate (21) are formed in the recessed area (3) of the end face of the base body (14).