Form： 2019/7/19Browse：65

Taking the gate control system of a large dam as an example, this paper mainly introduces the detailed design and implementation points of the control scheme based on PLC and fieldbus. The hardware, software structure and working principle of the system are explained emphatically, and the application characteristics of OMRON PLC are introduced. Practice has proved that the system can meet the automatic control requirements of large-span dam gates in water areas, and has the advantages of advanced, reliable and good control performance.

Form： 2019/7/19Browse：60

This equipment is mainly used in the production of chemical fibre multi-stretching and crimping pretreatment. It consists of guide frame, eight-bar guide machine, hot water tank, first drafting machine, water bath, second drafting machine, steam box, third drafting machine, stacking machine, tension frame, crimping machine, crimping side plate motor, oil pump motor, vibration motor, circulating water pump and vibration. Inspection and other equipment composition. The scale of I/O control is 103 points, among which the input point of switching quantity is 61 points, the output point of switching quantity is 39 points, and the input point of analog quantity is 3 points. The main control requirements of Mitsubishi Q system are: speed of chemical fibre, drafting ratio, steam and water temperature, interlocking logic control and so on. The key of Mitsubishi Q system control is to ensure the guide wire, first drafting and second drafting. Speed synchronization of five motors: three-pull and winding.

Form： 2019/7/19Browse：48

Using the Pro-face GLC screen in the plastic processing system, we can create icons and display the operation process comprehensively, so that the running screen can be seen at a glance. This design makes the animation surface easy to understand.

Form： 2019/7/19Browse：49

With the rapid development of modern electronic industry, programmable logic controller (PLC) and frequency converter (VVF) are more and more widely used in various industrial fields, and their performance indicators are further improved. They are fully applicable to the workplaces of railway transportation industry. The traditional control system of gantry crane uses various contactors, relays, resistors and other components. The failure rate of the system caused by electrical equipment is higher. The application of PLC system can effectively solve these problems, such as the improvement of mechanical failure and the reduction of the service life of gantry crane.

Form： 2019/7/19Browse：52

This paper introduces the application of OMRON CJ1 series PLC in FRP tempering furnace. In view of the non-standard and diversified characteristics of tempering furnace, the flexible and powerful programming functions of CJ1 PLC, such as task, function and virtualization, are fully utilized, which not only realizes the accurate and perfect control of production process, but also realizes the relative program. Standardization.

Form： 2019/7/19Browse：60

The extruder adopts Mitsubishi programmable controller as the core control, combined with frequency conversion closed-loop control and touch screen debugging to solve the problems of current potentiometer speed regulation, inconvenient operation, poor stability and great improvement of the control level of the whole electronic control system, which reflects the development direction of electric control of extruder in China today. Mitsubishi's FA products have gained more and more customers'recognition through many years' use and good cost performance.

Form： 2019/7/19Browse：65

The application of Pro-face GP in printing industry, after debugging, the whole system to meet customer requirements. Although only a small part of the GP function is used in this example, most of the other functions are implemented in plc. But visible touch screens can be better used in this field.

Form： 2019/7/19Browse：46

The plywood machine is an important equipment in rubber hose industry. The quality of metal wire plywood directly affects the quality of rubber hose. The joint stock machine is composed of motion controller, servo controller and motor, frequency converter and other detection switches.

Form： 2019/7/19Browse：57

The automatic cartoning machine integrates optics, mechanics, electricity and gas, and is controlled by computer. It is suitable for automatic mechanical packing of plate and bottle-shaped articles such as pharmaceuticals, food and health products. Automatic delivery of items, folding and transmission of instructions, carton forming and transmission, loading of articles and instructions into cartons, carton tongue packaging at both ends and other processes, and automatic rejection of non-conforming products. According to the object of packing, the cartoning machine can be divided into plate-type automatic cartoning machine (the cartoning object is mostly the medicine plate packed with bubble cap) and bottle-type automatic cartoning machine (the cartoning object is mostly the medicine bottle). The two machines have the same technological process and are mainly used in the medicine industry cartoning machine. At present, the speed of cartoning machine is generally 80-100 boards/min PLC.

Form： 2019/7/19Browse：57

Roll forging transmission system is widely used in forging industry. The system consists of a roll forging machine and a manipulator conveying mechanism, which replaces the traditional free forging and manual feeding system. The roll forging transmission system improves the automation level, improves the product quality accuracy, reduces the labor intensity of workers and saves costs.