Infrared Measurement System for Corrugating Machine Adhesion Quality
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Solution Overview
Problem
Current monitoring systems for adhesive quality in corrugated cardboard production cannot reliably determine if the adhesive bond between paper webs is successful after the adhesive has been applied and the webs have been brought into contact, as they only measure the adhesive film thickness before or after application, without ensuring its distribution at the contact points.
Innovation Solution
A measurement system using an infrared detection device positioned downstream of the adhesion station in a corrugating machine to assess the temperature of the corrugated cardboard, which indicates the adhesive quality based on temperature differences between adhered and non-adhered regions, allowing for real-time evaluation of the adhesion process without disrupting the operational flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If adhesive film thickness is measured before or after application using conventional monitoring systems, then the quantity of adhesive can be determined, but it is impossible to tell whether the adhesive is actually present at the contact points or whether successful adhesive bonding has been achieved
Solution Approach 1:
The patent uses temperature as an intermediary parameter to indirectly assess adhesive bonding quality. Instead of directly measuring adhesive presence at contact points, the system measures temperature changes in the paper web that result from adhesive application and bonding processes, allowing reliable determination of adhesion success without direct adhesive measurement
Solution Approach 2:
The patent replaces conventional mechanical or direct chemical measurement methods with infrared thermal measurement. By substituting direct adhesive thickness measurement with non-contact temperature field measurement, the system achieves reliable adhesion assessment without physical interference with the bonding process
2Loss of time
If measurement is performed immediately after adhesive application, then the adhesive quantity can be captured, but the measurement cannot confirm successful bonding after the two paper webs have been brought into contact
Solution Approach 1:
The system performs preliminary temperature field measurement immediately after adhesive application to capture the thermal state at that stage, then uses this baseline information to compare against subsequent thermal states, enabling verification of bonding success over time without losing critical measurement opportunities
Solution Approach 2:
The patent implements continuous temperature monitoring of the paper web through the adhesion zone, maintaining uninterrupted thermal measurement to capture the complete bonding process from adhesive application through contact and bonding, ensuring no critical bonding verification moment is missed
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 reliable, automated assessment of adhesive quality by detecting temperature changes post-adhesion, identifying defects and ensuring consistent adhesion across the web, thereby reducing defective product rejection and improving production efficiency.
Implementation Method 1
The measurement device (10) can detect electromagnetic waves in the infrared range
Implementation Method 2
Because the measurement device can detect infrared radiation, it is essentially possible to detect a temperature of corrugated cardboard
Data Source
AI summary
The present invention relates to a measurement system for use in a corrugating machine and a corrugating machine and a method of checking the process for producing paper adhesions with such a measurement system. The measurement system according to the invention for use in a corrugating machine comprises a measurement device. The measurement device can detect electromagnetic waves in the infrared range here and is aimed at a region of a transportation device of the corrugating machine in the direction of transportation downstream of an adhesion station of the corrugating machine.