New trends in the development of packaging and food machinery
at present, foreign countries with high levels of packaging and food machinery mainly include the United States, Germany, Japan, Italy and the United Kingdom. German packaging machinery is in a leading position in terms of design, manufacturing and technical performance. In 2002, the output value of German packaging machinery reached 3.4 billion euros, and 77% of its output was export products. In recent years, the development of packaging and food machinery and equipment in these countries has shown a new trend. The degree of automation of the process flow is getting higher and higher. Before adjusting the spacing between the main body and the dynamometer and adjusting the direction according to the shape and foundation drawing, the automation technology has accounted for more than 50% of the packaging production line. A large number of computer design and electromechanical integration control are used to improve the production rate, improve the flexibility and flexibility of the equipment, and increase the manipulator to complete complex packaging actions (simulating manual packaging). Each manipulator is controlled by a separate computer. The camera monitors the packaging action and feeds back the information to the computer to adjust the action range and ensure the high quality of packaging
at the same time, it has the function of automatic identification of packaging material and thickness, and then the computer calculates and controls the mechanical action. It is a completely adaptive system to ensure that the system works in the optimal state. Improve production efficiency, reduce process cost, and meet production requirements to the greatest extent. At present, the beer and beverage filling equipment in Germany has reached 120000 bottles/hour, and the cigarette packaging machine has reached 12000 pieces/minute. Once the high-speed equipment fails, the loss is also amazing, so the high-speed equipment must have a fault analysis system (self diagnosis system) and be able to eliminate the fault by itself, so as to improve the productivity
to adapt to product changes, the design needs to have good flexibility and flexibility. In order to adapt to the needs of competition, the cycle of product upgrading is getting shorter and shorter, and some products even change every season. The primary protection of the output film tensile testing machine is based on the treatment of operators. The life of the packaging machine is much longer than the life cycle of the product for plastic parts with high precision, so some packaging machines should be able to adapt to product changes, It can only be adapted with flexibility and flexibility, including flexibility in quantity, structure and supply. The structure can adopt unit modularization, Flexible supply means "Plastic bag recycling is a worldwide difficulty. One machine can realize a variety of packaging combinations, with multiple feeding ports and different forms of packaging.
the complete supply capacity is strong. For example, a beverage filling line has more than 200 microcomputer components, more than 100 control software, and the filling and capping part is combined in two sets, which are shared by other parts. A supplier can carry out engineering design, installation, debugging for users, and finally submit them to users for acceptance. Packaging machinery design Simulation design technology is widely used to store various machine units into the computer in the form of database. At the same time, the drawings are digitized and input into the computer, and the computer automatically synthesizes the three-dimensional model; Then transmit the actual production indicators and data to Europe. Due to public opinion, the EU has established a labeling system for genetically modified food, and the regulations covering this content came into force in April 2004. Many other countries have followed the example of the European Union. However, the birth of the labeling system has also attracted attention to compliance control, resulting in the research on the sampling and analysis methods of genetically modified food. Under the proposal of Germany (the research on the detection methods of genetically modified organisms was officially started in 1997), the Technical Committee for food analysis (cen/tc275) established a working group to develop the detection standards of genetically modified organisms and food. The working group gathered representatives from the scientific community, the food industry, analytical laboratories, and food control agencies
ISO established a working group in July 2000 in accordance with the framework of the 1991 Vienna agreement. The draft standard is dominated by Cen, and has been evaluated by ISO and Cen members, and finally reviewed by the ISO working group. If voted by peers, the standard will become a cen/iso standard, mainly including: sampling method, protein method, nucleic acid extraction method, quantitative nucleic acid method, basic requirements and definitions. The whole standard formulation process will be based on the detection strategy of genetically modified food
since cen/tc275 focuses on food, the ISO working group will focus on genetically modified seeds
at present, the draft of real-time quantitative PCR detection standard for genetically modified organisms of oilseed and oilseed (soybean) flour has been formed. Standardization of microbiological analysis with the aggravation of the harm of microbial food pollution to human body, consumers and health management departments are increasingly urgent to formulate credible and internationally coordinated microbiological detection standards as a means of government control and mutual recognition in international trade