Application Case | Using Light Curtains in the Packaging Industry – Solutions for Product Monitoring and Counting on Conveyor Belts
Overview of Automated Assembly Line Systems
This is a carefully integrated automated production system by our customer, deeply combining robotics technology, high-precision sensor technology, advanced image processing technology, and efficient packaging technology. The system is designed specifically for precision processing, rigorous testing, and automated packaging of products. Through a highly integrated control system and optimized production processes, it ensures high quality and efficiency in production. The Inovance SCARA robot, as the core execution unit of the system, is responsible for the precise movement and accurate positioning of products between various production stages, while the conveyor belt acts as the artery for product transfer, seamlessly connecting each production stage.
Breakdown of Each Process
FRU Reading:
Function: This stage is specifically used to capture and identify key information on the product, such as serial numbers, batch numbers, production dates, etc., providing essential data for subsequent processing and tracking.
Implementation: This may involve using barcode scanners, RFID readers, or high-resolution cameras combined with image recognition technology to quickly and accurately read information.
CCD Test:
Function: Using the high-precision imaging capabilities of a CCD camera, this stage conducts a comprehensive inspection of the product's appearance, including but not limited to size measurement, defect detection, and position verification, ensuring that the product quality meets standards.
Implementation: After the CCD camera captures the product image, it is analyzed in real-time using advanced image processing algorithms, quickly identifying and reporting the product's status.
FRU Writing:
Function: This stage involves marking or printing necessary information on the product, such as test results, completion dates, serial numbers, etc., to facilitate subsequent product tracking and management.
Implementation: High-precision marking equipment, such as laser markers, inkjet printers, or dot matrix printers, can be used to make permanent or temporary markings on the product surface as required.
Conveyor Belt:
As a key component of the production line, the conveyor belt is responsible for smoothly and quickly transferring products from one production stage to the next, ensuring continuity and efficiency in the production process.
Packaging Machine:
After the product has completed all designated processes, the packaging machine automatically seals the product, forming the final market-ready form and protecting it from external environmental factors.
Product Detection Solutions on Conveyor Belts: The Role of Light Curtains
In conveyor belt systems, Light Curtains play a crucial role. The QBT series of compact light curtains from DADISICK are horizontally installed on both sides of the conveyor belt. When a product passes through the light curtain, the sensor array detects the presence of the object and immediately sends a signal to the control system. This signal triggers the control system to perform corresponding operations, such as adjusting the robot’s working position or starting or stopping the next machine, ensuring smooth and safe production processes.
Additionally, the QT series safety light curtains are vertically installed at the entrance and exit points of the conveyor belt, forming an invisible safety barrier. The application of these light curtains not only significantly enhances the automation level of the production line but also greatly improves the safety protection for operators, making them an indispensable safety detection solution in modern production lines.
Customer Service
Installation Service
DADISICK is committed to providing comprehensive technical support to our customers. For domestic customers, we not only offer detailed technical guidance but can also provide on-site installation services based on customer needs, ensuring accurate installation of equipment and resolving any issues that may arise during the process. For international customers, we offer the same level of comprehensive support, including detailed product technical documentation to help them thoroughly understand the product features and installation requirements. Additionally, we can provide video tutorials to offer a clear and intuitive installation guide. We promise to deliver high-quality after-sales service to all our customers, whether domestic or international, and are dedicated to providing ongoing technical support to ensure long-term stable operation of the equipment, thereby fostering deeper cooperation between both parties.
Recommended Safety Light Curtains
Wide Scanning Range Light Curtains QT Series
✅ Extra-wide detection range, with a maximum customizable range of up to 45 meters, and height up to 6 meters;
✅ Features polarity, short-circuit, and overload protection, with a comprehensive self-check function to ensure no erroneous signals are sent to controlled devices in the event of a sensor failure;
✅ Strong anti-interference capability, effectively shielding 99% of interference signals, such as electromagnetic signals, strobe lights, welding arcs, and surrounding light sources;
✅ Adopts surface-mount technology with excellent shock resistance;
✅ Dimensions: 51mm*35mm; the safety sensor can be connected to the cable (M12) via an aviation plug;
✅ Supports switch outputs and relay passive outputs.
Compact Light Curtains QBT Series
✅ Adopts optical synchronization technology;
✅ Features polarity, short-circuit, and overload protection, with a comprehensive self-check function to ensure no erroneous signals are sent to controlled devices in the event of a sensor failure;
✅ Strong anti-interference capability, effectively shielding 99% of interference signals, such as electromagnetic signals, strobe lights, welding arcs, and surrounding light sources;
✅ Adopts surface-mount technology with excellent shock resistance;
Ultra-fast response time, with a maximum response time of no more than 15ms;
✅ The light curtain dimensions are 30mm*15mm, featuring a compact design with an ultra-thin side profile, making installation and wiring convenient.
DADISICK Popular Safety Sensors
Beam spacing：10mm
Number of optical axes：70
Protection height：690mm
light curtain sensor output (OSSD):2 PNP
Beam spacing: 10mm
Number of optical axes: 100
Protection height: 990mm
Safety curtain outputs (OSSD): 2 PNP
Output method: NPN/PNP+analog+RS485
Resolution: 1mm
Laser type: red semiconductor laser Class II laser 655+10nm<1m
Reaction time: 50-200ms
Response time: up to 1.5ms
Output type: RS485
Measuring center distance: 400mm
Measuring range: ±200mm
