Multilayer Belt Low Reflective Layer Optical Sensor Interference
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Solution Overview
Problem
The use of metal belts and coated belts in transport devices with optical sensors can lead to detection issues due to light reflection from the belt's glossy surface, interfering with the detection of transported objects.
Innovation Solution
A multilayer belt is designed with a metal layer, a resin layer, and a low reflective layer positioned between the metal and resin layers, reducing light reflectance and minimizing interference with optical sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal belt or coated belt is used in a transport device, then durability and longevity are improved, but light reflection from the belt surface interferes with optical sensor detection
Solution Approach 1:
A resin layer is introduced as an intermediary between the metal belt and the optical sensor. This resin layer has lower light reflectance compared to the metal surface, thereby mediating the interaction between the belt and the optical detection system. The resin layer absorbs or reduces reflected light while maintaining the underlying metal belt's durability properties.
Solution Approach 2:
The invention creates a composite structure combining metal and resin materials. The metal layer provides mechanical strength and durability, while the resin coating layer provides optical properties suitable for sensor detection. This composite material approach allows simultaneous achievement of durability and detection accuracy.
2Shape
If a glossy metal surface is used, then aesthetic appearance and smoothness are improved, but light reflection increases causing detection errors
Solution Approach 1:
The resin layer is applied selectively to modify the optical properties of specific areas of the metal belt surface. Rather than changing the entire metal belt's properties, the resin coating locally modifies the surface where optical detection occurs, maintaining smoothness while reducing harmful light reflection in the detection zone.
Solution Approach 2:
The resin layer changes the optical appearance and light interaction properties of the metal surface. By applying a resin material with different optical characteristics (lower reflectance), the surface's light reflection behavior is modified without sacrificing the underlying smooth metal structure.
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
The multilayer belt effectively reduces light reflectance, enhancing the accuracy of optical sensors in detecting transported objects and improving the overall performance of transport devices.
Implementation Method 1
a low reflective layer provided at least partially between the metal layer and the resin layer, and having a light reflectance lower than that of the metal layer
Data Source
AI summary
A multilayer belt includes a metal layer formed in an endless shape, a resin layer provided at the metal layer, and a low reflective layer provided at least partially between the metal layer and the resin layer, and having a light reflectance lower than that of the metal layer.