Packaging machinery update considerations
It is reported that behind the rapid development of the Chinese packaging industry, a large number of complete sets of equipment with high technological content still rely on imports, and a large amount of foreign exchange is used every year for the import of high-end equipment. For example, a two-way stretching device for plastic films, a production line of nearly 100 million yuan, has been introduced since the 1970s. So far, 110 lines of such production lines have been imported. In addition, aseptic packaging boxes and filling equipment, which are used in large quantities in the dairy industry, are almost all supplied to a foreign company.
In recent years, the demand for packaging machinery in various industries in China has been increasing year by year. Although there are many domestic packaging industries, relatively few packaging machinery in China can meet the needs of many industries. Therefore, domestic packaging machinery should actively seek better development approaches from the needs of relevant industries, and improving the applicability of packaging machinery is also a good response.
At the same time, the global packaging machinery has also entered a new phase.
According to the forecast of the United States Census Bureau, the United States will enter an aging society by 2025. The US packaging community has fully considered the potential demand of older consumers for packaging products and began to develop a packaging that adapts to the characteristics of the aging society in the future, such as with a zipper. Covers, easy-to-open metal lids, two-finger pull rings, etc. The packaging community is committed to providing consumers with more convenient packaging.
Packaging machinery still lacks
In recent years, China still has a big gap compared with the advanced level in other countries and urgently needs to be improved. When the investment for research and development accounts for 1% of the company's sales, it is difficult for the company to survive. It can barely maintain 2% of the company's sales, and only 5% of the company's competitiveness, while the investment of China's food packaging equipment companies for research and development is also average. Less than 1%.
According to statistics, the national R&D expenditure only accounts for 0.3% to 0.5% of the company’s sales revenue, R&D personnel only account for 3.4% to 4% of the employees, and the testing conditions of the institutes and institutions of higher education are behind. Compared with the level of foreign scientific research investment, China’s scientific research investment is seriously insufficient, which leads to a low degree of automation in China's food equipment industry, poor market satisfaction ability; multiple single products, complete sets of equipment; host more, less auxiliary equipment; low technical content products Many, high-tech, high value-added, high-productivity products; less primary processing equipment, deep processing equipment; common models, special requirements, special materials processing models less. Product performance compared with similar foreign products, low production capacity, high energy consumption, average energy consumption is 4 to 6 times that of developed countries. In particular, the performance gap of large-scale complete sets of equipment is even larger. The production capacity of domestically advanced models is about 1/2 that of foreign advanced levels, and the overall technological level of China's food equipment is about 20 years behind developed countries.
In fact, it is not anxious that packaging machinery needs to be solved. It is not China. German packaging machinery, especially food packaging machinery, features high-speed packaging, high degree of automation and reliability. Increasing the speed of the machine is a complex issue. The faster the speed, the lower the production cost of the single piece, but the area of ​​use of the factory will increase. In addition, the motor speed is also limited, so you can't think about how fast it is. In general, increasing the speed by 15% to 20% will bring a series of complicated problems.
Pneumatic cylinders (sometimes known as air cylinders) are mechanical devices which use the power of compressed gas to produce a force in a reciprocating linear motion.
Like hydraulic cylinders, something forces a piston to move in the desired direction. The piston is a disc or cylinder, and the piston rod transfers the force it develops to the object to be moved. Engineers sometimes prefer to use pneumatics because they are quieter, cleaner, and do not require large amounts of space for fluid storage.
Because the operating fluid is a gas, leakage from a Pneumatic Cylinder will not drip out and contaminate the surroundings, making pneumatics more desirable where cleanliness is a requirement. For example, in the mechanical puppets of the Disney Tiki Room, pneumatics are used to prevent fluid from dripping onto people below the puppets.
Once actuated, compressed air enters into the tube at one end of the piston and, hence, imparts force on the piston. Consequently, the piston becomes displaced (moved) by the compressed air expanding in an attempt to reach atmospheric pressure.
Although pneumatic cylinders will vary in appearance, size and function, they generally fall into one of the specific categories shown below. However there are also numerous other types of pneumatic cylinder available, many of which are designed to fulfill specific and specialized functions.
Pneumatic Cylinder
Single Acting Cylinders, Telescoping Cylinder, Double Acting Cylinders, Telescoping Pneumatic Cylinder
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