Backpressure Injection Foot for Consistent Adhesive Core Filling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for applying adhesive to continuous planar objects with core structures face challenges in achieving consistent adhesive application due to backpressure, which causes the adhesive flow direction to change, leading to inconsistent filling of cores.
Innovation Solution
A backpressure injection foot apparatus and method that controls adhesive flow direction by using a backpressure foot attached to an injection nozzle, featuring a flow indicator port and location guide marks to ensure consistent adhesive application across multiple cores.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If adhesive is continuously injected into the cores using an adhesive application machine, then the volume and rate of adhesive application is increased, but the flow direction of the adhesive changes due to backpressure, leading to inconsistent application
Solution Approach 1:
The patent converts the harmful backpressure effect into a beneficial force by introducing a backpressure foot that utilizes the pressure buildup to maintain consistent adhesive flow direction through the cores. The backpressure foot restricts adhesive flow to a controlled exit point, transforming the problematic backpressure into a mechanism that ensures consistent application throughout the core structure.
Solution Approach 2:
The backpressure foot acts as an intermediary component between the injection nozzle and the cores. It mediates the adhesive flow by controlling the exit path and maintaining pressure balance, thereby ensuring consistent distribution of adhesive through multiple cores without flow direction changes.
2Device complexity
If hand application method is used with a flexible spatula, then the equipment complexity is reduced, but the volume and rate of adhesive application is limited
Solution Approach 1:
The injection foot is segmented into distinct functional components: an injection nozzle for adhesive delivery, a backpressure foot for pressure control, and a flow indicator port for monitoring. This segmentation allows each component to perform its specific function efficiently, achieving both high productivity and controlled application.
Solution Approach 2:
The flow indicator port provides self-monitoring capability, allowing the operator to visually confirm adhesive flow and core filling without additional measurement tools. The system serves itself by providing built-in feedback on application status.
3Manufacturing precision
If adhesive flow is monitored to ensure consistent application, then the manufacturing precision is improved, but the complexity of the injection system increases
Solution Approach 1:
The flow indicator port provides visual feedback by allowing the operator to observe adhesive flow directly. This visual indication system uses the natural color and flow characteristics of the adhesive itself as the monitoring mechanism, avoiding complex electronic sensors or measurement devices.
Data Source
AI summary
A backpressure injection foot is provided. The backpressure injection foot includes an injection nozzle for applying an adhesive flowing therethrough onto a planar object having a core structure; and a backpressure foot attached to a distal end of the injection nozzle, wherein the backpressure foot is configured to cover a portion of a plurality of cores disposed within the planar object to facilitate application of the adhesive from a proximal surface of the planar object through to a distal surface of the planar object.