SMC Production Device with Optical Resin Thickness Control
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Solution Overview
Problem
Existing production devices for thermosetting semi-finished products, such as SMC production devices, face challenges in achieving high manufacturing quality due to inconsistencies in the thickness of the applied resin matrix, which can lead to variations in the final product quality.
Innovation Solution
Incorporation of a detection unit with optical sensors, such as laser or confocal chromatic sensors, to contactlessly measure the thickness of the applied resin matrix on a carrier element, coupled with a hold-down element to maintain the carrier element in place during measurement, allowing for precise thickness control and automatic adjustment of the application process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a material application unit is used to apply resin matrix to carrier element, then material application capability is improved, but thickness consistency deteriorates
Solution Approach 1:
A detection unit with optical sensors is integrated into the material application unit to continuously measure the thickness of applied resin matrix in real-time. The sensor data is fed back to a control unit that automatically adjusts application parameters (such as doctor blade position or material flow rate) to maintain consistent thickness, eliminating the need for manual calibration and ensuring high manufacturing precision while maintaining ease of manufacture
Solution Approach 2:
The patent replaces manual thickness measurement and adjustment mechanisms with an optical detection system. Instead of using mechanical gauges or visual inspection methods, laser or confocal chromatic sensors non-contactly measure resin thickness with high precision. This substitution of mechanical measurement systems with optical fields enables continuous monitoring and automated control, resolving the contradiction between easy material application and precise thickness control
2Device complexity
If manual thickness measurement is used, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
Manual thickness measurement methods (such as mechanical gauges or visual inspection) are replaced with optical detection systems including laser sensors or confocal chromatic sensors. These optical systems non-contactly measure resin matrix thickness with micrometer or sub-micrometer precision, dramatically improving measurement accuracy while the integrated control unit automatically processes sensor data and adjusts application parameters, maintaining operational simplicity despite the advanced sensing technology
3Manufacturing precision
If frequent calibration is performed to maintain thickness consistency, then manufacturing precision is improved, but productivity deteriorates
Solution Approach 1:
The detection unit continuously monitors resin matrix thickness during the application process, providing real-time feedback to the control unit. This closed-loop control system automatically adjusts application parameters to maintain thickness consistency within specified tolerances throughout production, eliminating the need for frequent manual calibration interruptions and maintaining both high manufacturing precision and productivity
Solution Approach 2:
The optical detection system operates continuously during material application, providing uninterrupted thickness monitoring and control. This continuous measurement and adjustment process ensures consistent quality throughout production without requiring periodic shutdowns for calibration, thereby maintaining both manufacturing precision and production efficiency simultaneously
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
Ensures high process quality by enabling precise and repeatable thickness measurement and adjustment, reducing the need for frequent calibration and enhancing the consistency of the applied material thickness, thereby improving the overall manufacturing process.
Implementation Method 1
at least one detection unit (18), in particular having at least one optical sensor element (20), for detecting a, in particular maximum, thickness (22) of the material (14) applied to the carrier element (16)
Data Source
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AI summary
The invention relates to a production device, in particular an SMC production device, for the manufacture of thermoset semi-finished products, comprising at least one material application unit (12), in particular a doctor blade unit, for applying a material (14), in particular a resin matrix, to a carrier element (16), in particular a carrier film. It is proposed that the production device includes at least one detection unit (18) which has at least one, in particular optical, sensor element (20) for detecting a, in particular maximum, thickness (22) of the material (14) applied to the carrier element (16).