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Mechatronics: the development direction of packaging machinery

packaging is a necessary condition for products to enter the circulation field, and the main means to realize packaging is the use of packaging machinery. With the development of the times and the progress of technology, packaging machinery is playing an increasingly important role in the field of circulation

traditional packaging machinery mostly adopts mechanical control, such as cam distribution shaft. Later, electronic control, photoelectric control, pneumatic control and other control forms appeared. However, with the increasing productivity and the random change of packaging parameters, these control systems have become increasingly difficult to meet the development of the new situation. At this time, a new technology -- mechatronics technology came into being. It completely changed the appearance of the lifting machinery with the lightweight requirements of packaging, and made it appear in front of the world with a new attitude

characteristics of mechatronics technology

in the current era of rapid changes in science and technology, the emergence of various new technologies, new processes, new materials and new equipment is no longer the development of a single discipline, but the result of mutual penetration and complementarity of various related disciplines and a variety of advanced technologies. Mechatronics is such a new technology. It is a comprehensive technology based on information theory, cybernetics and system theory. Its essence is to organically combine machinery, electronics, information, detection and other related technologies to achieve overall optimization by using the process control product performance stability principle from a system point of view. Specifically, it introduces microcomputer technology into packaging machinery

mechatronics has fundamentally changed the face of packaging machinery. In this kind of packaging machinery, microcomputer, as its brain, has replaced the conventional control system. The mechanical structure is its main body and trunk. Various instruments, meters and sensors are its senses. They feel the changes of various packaging parameters and feed them back to the brain (microcomputer). Various actuators are its hands and feet to complete the necessary actions for packaging operations

a complete mechatronics system generally includes microcomputer, sensor, power source, transmission system, actuator, etc. It abandons the cumbersome and unreasonable parts of conventional packaging machinery and integrates the advanced technologies of machinery, microcomputer, microelectronics, sensors and other disciplines, which has brought profound changes to the design, manufacturing and control of packaging machinery and fundamentally changed the face of packaging machinery

effect on packaging machinery

a new technology, once it becomes a productive force, often plays a huge role. For example, the error of photoelectric positioning is far less than that of mechanical positioning, and the effect of microwave drying is far better than that of electric heating drying. Although the time of electromechanical integration technology used in packaging machinery is not long, the effect is obvious and the role is huge

greatly simplify the mechanical structure

the control system is the starting organ of the machine. The traditional packaging machinery control system mostly uses relays and contactors to control the circuit. Its complexity increases with the increase of the actuator and the adjustment parts, making the machine more and more complex, which brings inconvenience to manufacturing, adjustment, use and maintenance. As for Mechatronics, the bulky electrical control cabinet and driving device can be replaced by microcomputer, sensor technology and new transmission technology, which greatly reduces the number of parts, greatly simplifies the structure and reduces the volume

product quality improvement

there is a huge storage system in the microcomputer. People can store the parameters and relevant data that affect the work of the packaging machine in advance into the microcomputer, which can automatically track the production process. When one parameter or several parameters change, the change will be immediately fed back to the microcomputer, which will identify, judge and correct these changed parameters in time, so as to keep the packaging machine in the best working state at any time. When the process parameters of traditional packaging machine change, the adjustment is mostly based on experience, which makes it difficult to find the best parameters; If several process parameters are changed at the same time, we are at a loss. For example, the sealing quality of the most common plastic bag sealing machine is related to packaging materials, heat sealing temperature and running speed. If the material (material and thickness) changes, the temperature and speed will also change, but the change is difficult to grasp. If microcomputer control is adopted, the best parameters of sealing temperature and speed of various packaging materials are matched and input into microcomputer memory, and then necessary sensors are equipped to form an automatic tracking system. In this way, the best sealing quality can be guaranteed no matter which process parameter is changed

the more parameter changes, the more adjustment parts, the greater the advantages of mechatronics, which cannot be compared with general control methods

increased functions and improved reliability

Mechatronics can not only maintain the functions of the original packaging machine, but also endow it with many other functions. For example, the soft packaging machine for liquid drinks, with the joint cooperation of pneumatic, electrical and mechanical, can have the functions of box making, sterilization, filling, sealing, etc. but if the microcomputer is introduced into the control system, it can also store data such as production rate, product quantity, fault phenomenon, fault cause, etc. at the same time, it can process these data according to the actual situation, print the results, or display them on the screen, which greatly facilitates the operation

it is recommended that the electromechanical instrument be used at an ambient temperature below 25 ℃, which will also give the packaging machine the functions of automatic monitoring, dynamic detection and alarm. It also has the functions of pressure safety interlock control, overload and out of control protection to the samples with 10kN clamping force around, so as to greatly improve the reliability of the packaging machine

the packaging machine designed with electromechanical integration technology has digital display and highly centralized display of various information, greatly reduces the operation buttons and handles, and has program control and other functions. The operation procedures are greatly reduced and the operators are easy to be trained

most conventional packaging machines are driven by asynchronous motors. In fact, most of them work under light load, which wastes a lot of energy. Electromechanical integration technology uses variable-frequency motor instead of asynchronous motor. Microcomputer can automatically find the best working point and randomly adjust the output power of variable-frequency motor, which can generally save 40% of energy. In addition, its reliability is improved, the product quality is guaranteed, and the benefit is also improved

Mechatronics is the development direction of packaging machinery. Although it has not been applied for a long time, it has shown great advantages. With the popularization and promotion of Mechatronics in packaging machinery, it will play a positive role in the development of China's packaging industry

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