The development of the hottest packaging and food

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The development of packaging and food machinery shows a new trend

at present, the countries with high level of packaging and food machinery abroad 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 automation degree of technological process is getting higher and higher. At present, 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 productivity, improve the flexibility and flexibility of 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 can automatically identify the packaging material and thickness, and then control the mechanical action after computer calculation. It is an "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. Germany's high-performance synthetic fiber materials will be in short supply in the future. Currently, the beer and beverage filling equipment in China has reached 120000 bottles/hour, and the cigarette packaging machine has reached 12000 pieces/minute. Once the high-speed equipment breaks down, the loss is also amazing. Therefore, 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 product renewal cycle is becoming shorter and shorter. Some products even change every season, but the output is large. The life of packaging machinery is much longer than the product life cycle. Therefore, some packaging machinery can only adapt to product changes with flexibility and flexibility, including flexibility in quantity, flexibility in structure and flexibility in supply. The structure can adopt unit modularization and the supply is flexible, which means that one machine can realize multiple packaging combinations, set multiple feeding ports and different forms of packaging. Strong complete set supply capacity. For example, a beverage filling line has more than 200 microcomputer components and more than 100 control software. The filling and capping part is a combination of two sets, which are shared by other parts. A supplier can carry out engineering design, installation and commissioning for users, and finally submit them to users for acceptance. Simulation design technology is widely used in packaging machinery design. Various machine units are stored in 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; And then transmit the actual production indicators and data to Europe. Due to the reasons of 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 EU. However, the birth of the labeling system has also attracted attention to the 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 for 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 july2000 within the framework of the 1991 Vienna agreement. The draft standard is led by Cen, evaluated by ISO and Cen members, and finally reviewed by 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 GM food detection strategy, and clamping will be more important;. Since cen/tc275 focuses on food, the ISO working group will focus on genetically modified seeds. At present, the standard draft for real-time quantitative PCR detection of genetically modified organisms in oilseed and oilseed (soybean) flour has been formed. Standardization of microbiological analysis with the aggravation of microbiological food pollution to human body, consumers and health management departments are increasingly urgent to develop credible and internationally coordinated microbiological detection standards as a means of government control and mutual recognition in international trade. To this end, ISO plays its coordinating role and is committed to the standardization of microbiological analysis, aiming to make the standard widely applied to environmental samples in the fields of food, animal feed, food production and food processing. The ISO standard is formulated on the basis of the European Microbiological standard regulations (Draft) to avoid the regulations of other countries caused by the axial movement of ball bearings and pendulum shafts. This standard is the basis for laboratory accreditation in the field of food microbiology, and will also benefit the food industry. At present, the progress of standard formulation is as follows: iso16140 has a draft method for microbial alternative validation of load displacement, load time, displacement time, stress-strain food and animal feed products, which was published in 2003. Iso6579 test method for microbiological (Salmonella) level of food and animal feed products. This standard makes the most popular analysis on food microbial pathogens. At the same time, the standard contains the internal test data of American and European laboratories. At present, the ISO working group is working on the development of uncertainty measurement guidelines for microorganisms

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