With the rapid advancement of society, competition in the market has become increasingly intense. As a result, all production enterprises are under pressure to enhance their production technologies and improve efficiency. Traditionally, manual sorting methods were widely used in material sorting processes, but this approach led to low productivity, high costs, and reduced competitiveness. Gradually, more companies have turned to automated sorting systems. To address these challenges, a low-cost and highly efficient automatic material sorting device was developed using PLC technology, achieving excellent control performance in the sorting process.
The sorting device is designed with specific requirements in mind. First, the sorting process begins when the system is powered on. The programmable logic controller (PLC) starts the conveyor belt, and a blanking sensor (SN) checks whether there is material in the trough. If no material is detected, the conveyor stops automatically and waits for the next cycle. When material is present, the lower material sensor sends a signal to the PLC, which then continues the conveyor operation. At the same time, the pneumatic valve 5 is activated to release the material, and the feeding interval can be adjusted as needed.
Material sensors SA, SB, and SC play key roles in identifying different types of materials. Sensor SA is an inductive sensor that detects iron materials, triggering the first pneumatic valve. Sensor SB is a capacitive sensor that identifies aluminum, activating the second pneumatic valve. Sensor SC is a color sensor that detects specific colors, controlling the third pneumatic valve. Sensor SD acts as a backup and helps the system identify materials based on pre-set criteria, ensuring accurate sorting.
The functional requirements of the system include sorting metal and non-metal materials, identifying color blocks, and separating colored objects from both metal and non-metal categories. The control requirements ensure smooth operation, including generating pulses via a photoelectric encoder, driving the conveyor belt, moving the blanking cylinder when material is present, and actuating the appropriate cylinders based on sensor inputs. Safety measures, such as limit protection for the cylinders, are also included. Additionally, if no material is present in the feeding trough, the system will automatically stop after a delay.
For the control system, a PLC model Olympus CPU224A+221-1BF22 was selected due to its compatibility with the required 18 input and 6 output channels. An I/O allocation table was created to clearly define the connections between the sensors, valves, and the PLC. This ensures reliable and efficient control of the entire sorting process.
In conclusion, using a PLC-based system for material sorting offers numerous advantages. It enables continuous and large-scale sorting with a low error rate, significantly reducing labor intensity and improving productivity. The system can be easily integrated with other logistics equipment, supporting efficient material distribution and information management. The design is modular and standardized, making it easy to maintain and adapt to different sorting needs. With minimal modifications, the system can be reconfigured to handle various types of materials, ensuring flexibility and long-term usability.
Uv Curing Hydrogel Film
Uv Curing Hydrogel Film,Glass Protector,Matte Frosted Antiglare Full Cover Screen Protector,Cut Screen Protector Glass
Shenzhen TUOLI Electronic Technology Co., Ltd. , https://www.tlhydrogelprotector.com