Adhesive Pump Pressure Feedback for Consistent Per-Substrate Dosing
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Solution Overview
Problem
Current systems lack sufficient control in applying adhesive to substrates, leading to issues such as increased costs, reduced aesthetics, and compromised packaging integrity due to improper adhesive application.
Innovation Solution
A closed-loop control system utilizing sensors and controllers to manage adhesive application based on flow rate and substrate count, ensuring consistent adhesive application per substrate through a hot melt adhesive system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If more adhesive is applied to the substrate, then the bonding integrity is improved, but the cost increases and aesthetics deteriorate due to adhesive squeeze-out
Solution Approach 1:
The system employs a closed-loop feedback mechanism where a sensor detects the actual adhesive application rate and substrate throughput, and this information is fed back to the controller which adjusts pump pressure in real-time to maintain the desired adhesive application rate, thereby preventing both over-application and under-application
Solution Approach 2:
The system dynamically adjusts the pump pressure parameter based on feedback from the sensor to maintain consistent adhesive application rate. By changing this physical parameter in response to measured conditions, the system achieves precise control over adhesive application, ensuring optimal bonding without excess waste
2Loss of substance
If less adhesive is applied to the substrate, then the cost is reduced and aesthetics are improved, but the bonding integrity is compromised
Solution Approach 1:
The closed-loop feedback system continuously monitors adhesive application rate and substrate count, comparing actual performance against target values. When the application rate deviates from the target, the controller adjusts pump pressure to correct the deviation, ensuring minimum bonding requirements are met while minimizing adhesive waste
Solution Approach 2:
The system automatically self-regulates adhesive application through the feedback loop without manual intervention. The sensor and controller work together to self-correct application rate variations, ensuring consistent bonding quality and optimal adhesive usage without operator involvement
3Device complexity
If manual adhesive application control is used, then the system complexity is low, but the manufacturing precision of adhesive application is insufficient
Solution Approach 1:
The system replaces manual mechanical control of adhesive application with an automated electronic control system. The controller receives sensor data and automatically adjusts pump pressure through electronic signals, substituting human-operated mechanical adjustment with precision electronic control to achieve consistent adhesive application rates
Solution Approach 2:
The feedback mechanism provides continuous monitoring and automatic correction of adhesive application rate, replacing imprecise manual control with a self-regulating system that maintains manufacturing precision through real-time adjustments based on measured performance
Data Source
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AI summary
Systems and methods for controlling adhesive application are disclosed. The systems and methods may include a controller and one or more sensors configured to measure an amount of adhesive applied to a plurality of substrates by a pump, detect a number of the substrates, determine an amount of adhesive applied per substrate, compare the adhesive applied per substrate to a target value, and adjust a pressure of the pump based on the comparison. The sensor(s) may include one or more of a valve sensor coupled to an adhesive supply, a flow rate sensor coupled to a manifold, a flow rate sensor coupled to one or more hoses, and a flow rate sensors coupled to a gun.