Heterochromatic and Alien Screening InstrumentIt is an instrument specifically designed for detecting and analyzing color and shape defects in materials, which combines optical principles, image processing technology, and automation control technology. It illuminates the material through a light source and uses optical sensors to capture the light signals reflected and transmitted by the material. These light signals are analyzed by an image processing system to determine the presence of color or shape defects based on the characteristics of the material. Once abnormal colors or shapes are detected, the system will transmit a signal to the rejection system to control the corresponding device to remove defective products.
Heterochromatic and Alien Screening InstrumentIts technical characteristics can be reflected from multiple dimensions such as detection accuracy, automation level, adaptability, etc., as follows:
1、 High precision optical detection technology
Multi dimensional visual recognition
Equipped with high-resolution industrial cameras (such as CCD/CMOS cameras), combined with multispectral light sources (white light, infrared light, ultraviolet light, etc.), it can simultaneously capture the color, texture, contour and other features of materials. For example:
Color detection: Using RGB color models or grayscale analysis, identify "color deviation" products that exceed the standard color difference value (such as spoiled grains, unevenly dyed pills).
Shape detection: using edge extraction and contour comparison algorithms to identify "irregular" products such as size deviations, deformations, and defects (such as bent electronic pins and damaged capsules).
High speed image acquisition and processing
The image acquisition frame rate can reach hundreds to thousands of frames per second, coupled with high-speed DSP (digital signal processor) or FPGA (field programmable gate array), to achieve millisecond level response and meet the requirements of high-capacity production lines (such as processing thousands to tens of thousands of materials per minute).
Capable of anti-interference: By dynamically suppressing the background and adaptively adjusting the light source (such as responding to material surface reflections and changes in ambient light), it reduces false positives and false negatives.
2、 Automation and Intelligent Control
Fully automated sorting execution
Integrated high-precision actuators (such as pneumatic injection valves, servo driven baffles, vacuum adsorption devices) can complete the removal action in a very short time (usually<10ms) after identifying non-conforming products, without affecting the normal material conveying rhythm.
Support continuous detection: runs synchronously with the production line, without stopping for feeding, and adapts to the speed of the assembly line (such as 0.5-5 meters/second).
Intelligent algorithms and self-learning capabilities
Built in machine learning algorithms can optimize detection models through "sample training": after the operator inputs standard and defective product samples, the device automatically generates detection thresholds, reducing manual parameter debugging costs.
Equipped with data statistics and analysis functions: real-time recording of detection quantity, pass rate, defect type distribution and other data, supporting viewing through touch screen or upper computer (such as computer), facilitating production process traceability and quality control.
3、 High adaptability and flexibility
Strong material compatibility
It can adapt to various forms of materials, including granular (such as rice, plastic particles), block (such as biscuits, hardware), sheet (such as electronic chips, pills), etc. Compatibility can be achieved by replacing the conveyor track (such as vibrating discs, belt conveyors, slides) or adjusting the detection height.
Design for special materials: for example, flexible conveying and low impact removal are used for fragile items such as glass beads; Use high-temperature resistant optical components for high-temperature materials (such as freshly baked food).
Adjustable parameters and quick changeover
Support flexible adjustment of detection parameters (such as color sensitivity, shape tolerance range, rejection delay time) through touch screen or software interface to adapt to the quality standards of different batches of materials.
Multi product mode storage: Multiple material detection schemes can be preset, and can be called with one click when switching products, reducing production time (such as switching from detecting A type tablets to B type without recalibration).
4、 Stable and reliable mechanical and electrical design
Precision mechanical structure
The conveying system adopts a high stability design, such as synchronous belt transmission (reducing vibration) and anti deviation guide rails (ensuring that the material passes through the detection area in the center), to ensure the stability of the material position during detection and improve recognition accuracy.
Key components are wear-resistant and corrosion-resistant: Components in contact with materials (such as tracks and hoppers) are made of food grade stainless steel (such as 304, 316) or Teflon coating, suitable for humid, dusty, or corrosive environments (such as chemical particle screening).
Safety and durability
Equipped with multiple protection functions, such as overload protection (automatic shutdown in case of motor stalling), emergency stop button, and protective cover (to prevent material splashing and accidental contact by personnel), in compliance with industrial safety standards (such as CE and ISO).
Modular design of electrical system: Power supply, control board, sensors and other components are independently packaged for easy maintenance and replacement, reducing the cost of fault repair.
5、 Scalability and Networking
Support multi machine collaboration: Multiple screening devices can work in series or parallel, suitable for wide production lines or simultaneous detection of multiple varieties.
Industrial Internet of Things (IIoT) integration: Some high-end models support Ethernet or wireless communication (such as 4G, Wi Fi), which can upload detection data to factory management systems (such as MES) to achieve remote monitoring and intelligent production scheduling.