The hottest packaging machinery goes out of the br

Packaging machinery goes out of the brand road of independent innovation

first, when can independent brands mature

with the increasing development of China's economy, the packaging industry has also developed at an average annual growth rate of 18%. However, in the process of the rapid development of China's packaging industry, a large number of complete sets of equipment with high technical content still rely on imports. For example, plastic film biaxial stretching equipment, a production line of nearly 100million yuan, has been introduced since the 1970s. So far, 110 such production lines have been imported in China. In addition, almost all aseptic packaging boxes and filling equipment widely used in the dairy industry are provided by Tetra Pak in Sweden

industry experts believe that the excessive dependence of China's packaging machinery on foreign high-end technology has seriously restricted the sustainable and stable development of China's packaging industry

theoretically, the introduction of foreign advanced packaging equipment has greatly accelerated the development speed of China's packaging industry and narrowed the gap between China's packaging industry and developed countries. However, we cannot completely rely on foreign high-end technology and technical equipment for two reasons: first, foreign technical equipment is expensive, and some small and medium-sized enterprises are unable to introduce it, which is not conducive to the overall improvement of the technical level of China's packaging industry; Second, it is not conducive to the development of products with independent intellectual property rights and the cultivation of their own professional designers. In the long run, China's high-end food packaging machinery can only follow others, and will gradually lose the control of development and the initiative of the market

second, the independent innovation of China's packaging machinery manufacturing has not been done enough.

over the past two decades of China's reform and opening up, it has been a failure to exchange market for technology, and its evil result is that foreign cars are running in the streets and alleys of China at present. In contrast, China's packaging industry has introduced a large number of foreign advanced technologies and equipment, but in fact, the high-end equipment market of China's large packaging enterprises is almost occupied by foreign equipment. In addition, China's packaging machinery manufacturing industry currently has invention patents for core technology, which is almost a drop in the bucket compared with the three major manufacturers. Is the introduction of foreign equipment and technology a good mentor or a hungry tiger for the development of China's packaging industry? Will the market be completely handed over to foreign manufacturers in the end

I think China's packaging industry should proceed from reality, because the manufacturing level of our packaging machinery is far behind that of foreign countries. Therefore, we can only take the road of introducing technology and combining it with independent innovation, and it is difficult to develop completely by independent innovation. China's packaging industry is developing on the basis of comparative advantages. First, the advantages of Chinese character information processing; Second, the advantages of talents. It is impossible to compete with foreign manufacturers in terms of comprehensive manufacturing level

the automatic technology of packaging machinery involves many disciplines. Some enterprises can solve it by themselves, while others must be solved jointly with relevant professional enterprises or research institutes. As for environmental protection products, the research covers a wider range, so in these aspects, our awareness of independent innovation is not enough

III. electromechanical integration: the development trend of packaging machinery in the future

with the continuous development of science and technology and the progress of technology, the emergence of various food processed products has put forward new requirements for food packaging technology and equipment, and packaging machinery is playing an increasingly important role in the field of circulation. At present, the competition of food packaging machinery is becoming increasingly fierce. In the future, food packaging machinery will cooperate with industrial automation, promote the overall level of packaging equipment, and develop food packaging equipment with multi-function, high efficiency and low consumption

traditional packaging machinery mostly adopts mechanical control, such as cam distribution shaft, and later there are photoelectric control, pneumatic control and other control forms. 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 the mutual penetration and complementarity of various related disciplines and a variety of advanced technologies. Mechatronics technology is a comprehensive technology established on the basis of information theory, cybernetics and system theory. Its essence is to organically combine machinery, electronics, information, detection and other related technologies from a system point of view and using the principle of process control to realize the overall optimization. Specifically, it introduces microcomputer technology into packaging machinery, applies electromechanical integration technology, develops intelligent packaging technology, and combines it into a fully automatic packaging system for production according to the requirements of product automatic packaging process. The detection and control of production process, fault diagnosis and troubleshooting will realize full automation, and realize high-speed, high-quality, low consumption and safe production. With the increasing improvement of food processing technology, the requirements for packaging parameters are increasing, and the original control system has been difficult to meet the development of new forms. When the mechanical and electronic equipment integrating machinery, electricity, gas, light, biology and electromagnetism is used in food packaging machinery, the design focuses on improving the automation of packaging machinery, and the electromechanical integrated control can be realized by combining the research and development of packaging machinery with computers

for example, it can be used for accurate measurement of aquatic processed food, high-speed filling and automatic control of packaging process, which will greatly simplify the structure of packaging machinery, improve packaging production and temporarily stabilize the rest of the market; The steel plant still maintains high product quality after commencement. 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 amount of change is difficult to grasp. In this kind of packaging machinery, microcomputer, as its brain, replaces 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 actions necessary for packaging operations

a complete mechatronics system generally includes microcomputer, sensor, powertrain, transmission system, actuator and other parts. It abandons the cumbersome and unreasonable parts of conventional packaging machinery, and integrates the advanced technology of machinery, microcomputer, microelectronics, sensor and other disciplines, which has brought profound changes to the design, manufacturing and control of packaging machinery, It has fundamentally changed the current situation of packaging machinery

the technical development trend of food packaging machinery is mainly reflected in high productivity, automation, single machine multi-function, multi-function production line, and the adoption of new technology. Such as: multi station bag making vacuum packaging machine, its bag making, weighing, filling, vacuum pumping, sealing and other functions can be completed on a single machine; Several machines with different functions and matching efficiency can be successfully combined into a relatively complete production line, such as the fresh fish vacuum packaging production line developed by French cracecryoya and ISTM companies. Adopt relevant new technologies, replace vacuum packaging with inflatable packaging in a large number of packaging methods, and closely combine the research of inflatable components, packaging materials and inflatable packaging machines; In terms of control technology, computer technology and microelectronics technology are more applied; Apply heat pipe and cold sealing technology in sealing. In addition, with the progress of packaging research from single technology to the combination of processing, the field of packaging technology should be extended to the field of processing, and the integrated food processing and packaging equipment should be developed. 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

the electromechanical integration system can simplify:

1) packaging 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, and its complexity increases with the increase of actuators and adjustment parts, making the machine that can adjust the ruler radius adjustment mechanism more and more complex, which brings inconvenience to manufacturing, adjustment, use and maintenance. In electromechanical integration, the cumbersome 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

2) improve the quality of packaging machinery products. There is a huge storage system in the microcomputer. Some basic knowledge of the friction resistance testing machine can be stored in the microcomputer in advance. It can automatically track the production process. When one or several parameters change, this change will be instantly fed back to the microcomputer, which will identify and judge these changed parameters and make corresponding corrections in time, so that the packaging machine can maintain the best working state at any time. When the process parameters of traditional packaging machines change, their adjustment is mostly based on experience, which makes it difficult to find the best parameters; If several process parameters change at the same time, it is 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 amount of 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, no matter which process parameters are changed, the best sealing quality can be guaranteed

3) enhance the reliability of packaging machinery. The more parameter changes and adjustment parts, the greater the superiority of electromechanical integration, which is unmatched by general control methods. With more functions and improved reliability, mechatronics can not only maintain the functions of the original packaging machine, but also give many other functions. For example, liquid beverage soft packaging machine, 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 reason, etc. at the same time, these data can be processed accordingly according to the actual situation, and the results can be printed or displayed on the screen, which greatly facilitates the operation. Mechatronics will also give the packaging machine automatic monitoring, dynamic detection, alarm and other functions, as well as safety chain control, overload and out of control protection and other functions, so that the reliability of the packaging machine will be greatly improved

IV. four trends in the development of packaging machinery technology

with the intensification of competition in packaging machinery, industry insiders believe that in the future, the packaging industry will cooperate with the trend of industrial automation and move towards the direction of R & D technology, talents and high-speed packaging machines, and the development of technology is moving downward

diversified mechanical functions. Industrial and commercial products have tended to be refined and diversified. Under the changing environment, diversified and flexible packaging machines with multiple switching functions can meet the market demand

standardization and modularization of structural design. Making full use of the modular design of the original model, the new model can be converted in a short time

intelligent control. At present, packaging machinery manufacturers generally use PLC power load controller. Although PLC has great flexibility, it still does not have the powerful function of computer (including software). In the future, packaging machinery must be multifunctional, adjust operation characteristics, point 1: simple test completion, etc