Under the strategy of the hottest food packaging i

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The strategy of the food packaging industry (Part 2)

as far as the sales packaging of food is concerned, there are two kinds of the most commonly used and basic packaging process methods, namely filling and wrapping. The filling method is applicable to almost all materials and all kinds of packaging containers. Specifically, for liquids, powders and granular materials with good fluidity, the packaging process can be completed mainly by their own gravity, supplemented by a certain mechanical action when necessary. For semi fluid with strong viscosity or single and assembly parts with large body shape, corresponding compulsory measures such as extrusion, pushing, picking and placing shall be adopted. As for the wrapping method, it is different from this. It is mainly applicable to single or combined parts with regular shape, enough rigidity and tight packaging requirements. Flexible plastics and their composites (some additional lightweight pallets and liners) are used for wrapping with the help of mechanical action. So far, the wrapping form is also rich and colorful, but the bag type should be the mainstream. The observation of domestic and foreign markets is enlightening. Although the filling method and wrapping method have their own characteristics, the former is used more widely and in large quantities all over the world and plays a leading role. Nevertheless, it is worth emphasizing that, in connection with the above-mentioned advantages of bags and boxes, if the two methods of filling and wrapping can be used together, it can be said to be a powerful addition, which will enhance the overall function of food packaging machinery and achieve more effective packaging in general

the leading model of food packaging machinery should be developed

in the past ten years, the international packaging industry has attached great importance to improving the general ability and multi-function integration ability of packaging machinery and the whole packaging system, so as to provide timely and flexible production means for diversified commodities with rapid market development. At the same time, based on the actual needs of reasonably simplifying the packaging and optimizing the packaging. 2. The weight of the weight is too light: the weight of the weight of the weight (the weight of a, B, c) is loaded. Continuous exploration has significantly accelerated the pace of its own technological innovation. Especially with the synchronous development of modern automatic machine tools, it is gradually clear. In order to establish a new system of packaging machinery with diversification, generalization and multi-function integration, we must first focus on solving the major problems of combination and electromechanical integration, which is undoubtedly an important development direction in the future

The basic guiding ideology of

combination is to design a series of modules with independent functions (generally referring to parts, components, devices and equipment) according to the general requirements of packaging, and change the process and overall function of the system by changing the type, quantity and position of the modules during application, so as to make it a general packaging machine with certain flexibility, so as to realize multiple functions of one machine, so as to achieve multiple varieties with less investment The purpose of small batch product packaging

from the perspective of the whole machine, the horizontal layout is often better than the vertical layout. The former is beneficial to the extension module, so as to increase functions, facilitate operation, beautify appearance and stabilize the body. The main disadvantage is that it covers a large area. Weighing the advantages and disadvantages, the mainstream of future development should be the horizontal combined multifunctional packaging machine

focusing on the current and future, it can be confirmed that the following three types of packaging machines are excellent models suitable for food sales and packaging, and can be called the leading models with a long history of development and strong vitality, namely, vertical bag (box) forming, filling and sealing machine, horizontal bag (box) forming, filling and sealing machine, and horizontal seam wrapping machine

analyzed according to the idea of group technology, there are many commonalities and similarities among the three, which are conducive to unified development. In addition, they have their own special differences, which should be selected according to local conditions. After a comprehensive comparison, its main features are listed as follows:

packaging object - matching the three models is almost all inclusive (except for gas-liquid materials), but the third one has limitations

packaging materials are mainly reel type composite films. In some cases, the second kind can be used to put straw, and the third kind can be used to put tray and other accessories

packaging form - the second pattern is more, such as three side sealed bags, four side sealed bags, duplex bags, self-supporting bags, brick boxes, roof boxes, etc; The first is second; The third kind is less, usually pillow shaped bags, and some can be made into cylindrical bags, four side sealed bags, etc

package size - the minimum width of the first kind of bag is 10mm, and the bag length can be adjusted steplessly within the limited range of practical ability to Xingbang; The width and length of the latter two kinds of bags can be adjusted steplessly within a limited range, and the length of the third kind of bags can reach more than half a meter

sealing type - many of the second type have been newly developed, such as the flat seal at the upper end of the tear opening or tear line, the combined seal with an embedded box, the screw cap seal placed in different parts, and so on; The other two models are monotonous

transmission movement - it can realize both continuous movement and step-by-step movement

structure combination - fully reflects the modular structure, especially the second horizontal layout is more convenient to configure functional modules (such as vacuum pumping and nitrogen filling). Coupled with the high degree of electromechanical integration, the diversity, versatility and multi-function integration are greatly enhanced, forming a series of products

it is reported that for a long time, these three typical models have played an important role in the domestic and foreign markets with promising prospects, and the second one is the most prominent and in the ascendant. In addition, we should also see that aseptic packaging technology is being promoted and applied in the fields of liquid beverages and liquid non-staple foods at an alarming rate. In the future, some foods with high viscosity that can send signals, foods mixed with particles and liquids, and solid foods will also gradually adopt aseptic packaging. It can be predicted that by that time, the plastic composite outsole adopts a variety of bags and boxes made of BASF elastopan and cellasto high-performance materials, which are still effective packaging containers to support their continued development. Moreover, several kinds of aseptic packaging machines, whether vertical or horizontal, have been developed by referring to the above-mentioned leading models, but the functions are more perfect and the technology is more complex. It is quite clear that aseptic packaging machine has become one of the most representative leading models in food packaging machinery

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