Wave-Shaped Adhesive Nozzle for Uniform Low-Volume Joints
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Solution Overview
Problem
Existing nozzles for applying viscous materials, such as adhesives, require high contact pressure and increased material volume to achieve a large-area bonded joint, leading to uneven adhesive joints and increased application effort.
Innovation Solution
A nozzle with a wave-shaped or zigzag-shaped application contour on its longitudinal side, featuring recesses that form multiple material strands, allowing for efficient application of viscous materials with reduced effort and ensuring uniform joint size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If recesses are arranged in a large distance from one another in the application contour, then the nozzle structure is simpler, but high contact pressure must be applied and increased material volume is required to fill the space between beads
Solution Approach 1:
The application contour is segmented into multiple closely-spaced recesses (at least 3, preferably 5-10) along the longitudinal side, dividing the material discharge into multiple fine strands rather than a single continuous bead. This segmentation allows uniform material distribution with reduced volume while maintaining simple nozzle structure.
Solution Approach 2:
The recesses are arranged in a wave-shaped or zigzag pattern along the longitudinal side, utilizing the longitudinal dimension to create multiple discharge points. This dimensional arrangement enables closely-spaced material strands to be deposited uniformly across the bonding surface without requiring complex transverse positioning mechanisms.
2Device complexity
If recesses are arranged in a large distance from one another, then the nozzle structure is simpler, but the adhesive joint becomes enlarged and uneven in size requiring rework
Solution Approach 1:
The application contour is segmented into multiple closely-spaced recesses (at least 3, preferably 5-10) along the longitudinal side, dividing the material discharge into multiple fine strands rather than a single continuous bead. This segmentation allows uniform material distribution with reduced volume while maintaining simple nozzle structure.
Solution Approach 2:
Each recess creates a localized material strand with consistent cross-sectional shape, ensuring uniform adhesive distribution across the entire bonding surface. The wave-shaped or zigzag arrangement ensures equal spacing and identical material volume from each recess, achieving precise and uniform adhesive joints without rework.
3Manufacturing precision
If multiple material strands are produced with small distance between them, then the adhesive joint is precise and uniform, but the application effort is reduced
Solution Approach 1:
Multiple recesses (at least 3, preferably 5-10) are merged into a single application contour along the longitudinal side of the nozzle, enabling simultaneous discharge of multiple material strands in one continuous motion. This merging achieves precise uniform adhesive joints while reducing application effort compared to multiple separate nozzles or passes.
Solution Approach 2:
The recesses are arranged in a wave-shaped or zigzag pattern along the longitudinal side, utilizing the longitudinal dimension to create multiple discharge points. This dimensional arrangement enables closely-spaced material strands to be deposited uniformly across the bonding surface without requiring complex transverse positioning mechanisms.
Data Source
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AI summary
The invention relates to a nozzle (10) for the application of a viscous material, in particular a viscous adhesive material, to a component surface, having at least one nozzle body (11) which comprises at least one discharge opening (12) for discharging material and at least one first longitudinal side (13) adjacent to the discharge opening (12), the first longitudinal side (13) having an application contour (14) for forming a plurality of material strands, wherein the application contour (14) comprises a plurality of recesses (15) which are formed next to one another along the first longitudinal side (13) in such a way that the application contour (14) is wave-shaped and/or zigzag-shaped.