Core Adhesive Nozzle Plug Design for Uniform Multi-Point Bonding
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Solution Overview
Problem
Existing adhesive application methods for manufacturing laminated cores result in uneven and non-uniform adhesive application, leading to potential splitting and reduced performance due to difficulty in managing adhesive application amounts and areas, especially with multiple outlets and processing deviations.
Innovation Solution
An adhesive applicator with a nozzle body and a movable nozzle plug that selectively blocks and opens adhesive outlets, allowing precise and uniform application of adhesive to laminar members, enhancing bonding force and minimizing interfacial splitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If adhesive outlets are increased to cover more forming portions, then adhesive application area is improved, but manufacturing precision deteriorates due to difficulty in managing adhesive application amounts
Solution Approach 1:
The adhesive applicator is divided into multiple independent nozzle units, each with its own nozzle plug. This segmentation allows each nozzle to be controlled independently, enabling precise management of adhesive application amounts at multiple locations simultaneously, thus resolving the contradiction between covering more areas and maintaining precision.
Solution Approach 2:
The nozzle plugs are designed to be movable rather than fixed, allowing dynamic adjustment of adhesive outlet opening/closing states. This dynamic control enables precise regulation of adhesive flow at each outlet independently, maintaining manufacturing precision even when multiple outlets are used to expand the application area.
2Area of stationary object
If multiple adhesive outlets are used for each forming portion, then adhesive application area is improved, but device complexity increases due to multiple nozzle plugs requiring precise management
Solution Approach 1:
The system segments the adhesive application function into multiple independent nozzle units, each with its own plug. This modular segmentation simplifies the overall management complexity by making each unit self-contained and independently controllable, rather than managing a complex integrated system.
Solution Approach 2:
Each nozzle plug is designed to automatically open/close based on the pressing action of the laminar member, eliminating the need for complex external control mechanisms. The system serves itself through the mechanical interaction between the plug and the workpiece, reducing device complexity while maintaining multiple outlets for expanded coverage.
3Area of stationary object
If adhesive is applied at multiple points, then bonding coverage is improved, but reliability deteriorates due to uneven and non-uniform adhesive application
Solution Approach 1:
The movable nozzle plugs enable dynamic control of adhesive flow at each outlet. By adjusting the pressing force and timing of each plug independently, uniform adhesive application can be achieved across multiple points, ensuring consistent bonding quality and reliability while maintaining extensive bonding coverage.
Solution Approach 2:
The system incorporates feedback through the mechanical interaction between the nozzle plugs and the laminar members. The pressing action of the workpiece provides feedback to the plug position, which in turn regulates adhesive flow. This feedback mechanism ensures uniform adhesive application across multiple outlets, improving reliability while maintaining extensive bonding coverage.
Data Source
AI summary
The present invention discloses an adhesive applicator for manufacturing a core, a core manufacturing apparatus, and an adhesive application method using the same. The adhesive applicator includes: a nozzle body having at least one adhesive outlet; and a nozzle plug movably provided inside the nozzle body in order to open/close the adhesive outlet. The adhesive outlet includes a nozzle hole for discharging the adhesive from the inside to the outside of the nozzle body, and the nozzle plug includes a plug body movably provided inside the nozzle body to selectively block the nozzle hole, and a plug tip formed to protrude on a fore-end surface of the plug body. The fore-end surface of the plug body has a flat surface which faces the nozzle hole and is orthogonal to an axis of the nozzle hole. According to the present invention, since processing precision and processing easiness of the nozzle plug for opening/closing the adhesive outlet and the adhesive outlet can be enhanced, an adhesive application amount applied to the material by the adhesive applicator having a plurality of adhesive outlets can be uniformly managed.