Brief history and classification of the hottest pa

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Brief history and classification of packaging machinery

packaging machinery refers to machinery that can complete the packaging process of all or part of products and commodities

the packaging process includes filling, wrapping, sealing and other main processes, as well as related pre and post processes, such as cleaning, stacking and disassembly. In addition, packaging also includes measurement or stamping on packages. Using mechanical packaging products can improve productivity, reduce labor intensity, meet the needs of large-scale production, and meet the requirements of sanitation

packaging machinery has developed with the emergence of new packaging materials and the continuous innovation of packaging technology. The papermaking technology invented by China has provided conditions for the emergence of paper packaging in history. In 1850, the world paper price fell sharply, and paper packaging began to be used for food. In 1852, Wally of the United States invented a paper bag making machine, which led to the emergence of paper products machinery. In 1861, Germany established the world's first packaging machinery factory, and in 1911 produced a fully automatic forming, filling and sealing machine

In 1890, the United States began to produce liquid filling machines, and in 1902, gravity filling machines were produced. At the beginning of the 20th century, Durand in Britain used metal containers to preserve food, resulting in a variety of canned food

since the 1960s, new materials have gradually replaced traditional packaging materials, especially after the use of plastic packaging materials, packaging machinery has undergone major changes. The rise of supermarkets has put forward new requirements for the packaging of commodities. In order to ensure the fast and safe transportation of goods, containers came into being, and the size of containerized boxes has gradually achieved standardization and serialization, thus promoting the further improvement and development of packaging machinery

there are many classification methods for packaging machinery. According to the function, it can be divided into single function packaging machine and multi-function packaging machine; According to the purpose of use, it can be divided into inner packaging machine and outer packaging machine; According to the type of packaging, it can be divided into special packaging machines and general packaging machines to enhance the competitiveness of Taiwan's solar energy industry; According to the level of automation, it can be divided into semi automata and full automata

the forming filling sealing packaging machine is a multifunctional packaging machine. After the materials enter the top of the packaging machine, the measuring part will send the fixed quantity of products into the material channel in turn. When the drum packaging material passes through the outer wall of the material channel, it is wound into a barrel shape by the shaper, and its longitudinal seam is welded and sealed firmly by the longitudinal sealer. The horizontal sealer completes the top seal of the packaging bag and the bottom seal of the next bag, forming two welds. As the feeding channel is wrapped by the packaging bag, the bottom seal can be directly fed into the bag after sealing and welding, and then move a station to complete the top seal and sealing, and cut it off with a knife to complete the packaging process

reel packaging materials are single-layer and composite. Single layer such as moisture-proof cellophane, polyethylene, polypropylene, high-density polyethylene, composite such as stretched polypropylene/polyethylene, polyethylene/cellophane/aluminum foil. In addition, there are materials that can be heat sealed. The types of package sealing include pillow sealing, three side sealing and four side sealing. Cartoning machine is used for packaging of product sales

cartoning machine is a machine used for product sales and packaging. It loads a measured quantity of materials into the box, and closes or seals the opening of the box. The packing machine is used to complete the transportation packaging. It loads the packaged finished products into the box according to a certain arrangement and quantity, and closes or seals the opening of the box. Both the cartoning machine and the packing machine have the functions of container forming (or opening), measuring, loading, sealing, etc

its typical process is: the filling machine positions the hose container, seals the end of the container after metering and filling, and then sends it to the cartoning machine. The cartoning machine first forms the box blank, wraps the hose with lining paper, and then pushes it into the box to close the box mouth. The small boxes are sent to the cartoning machine for stacking through the conveying device. After stacking a predetermined number, the large box blank forms a container in the form of wrapping, and at the same time, the small box is loaded into it and sealed with glue. The large boxes are transported to the packing machine for stacking, and loaded into the open boxes after reaching the predetermined quantity. After packing, the box cover shall be glued and sealed by the box sealing and banding machine, and the cover tongue shall be pasted with adhesive tape at the seam, or the box shall be tied firmly by the strapping machine

according to the filling principle, liquid filling machines can be divided into atmospheric pressure filling machines, pressure filling machines and vacuum filling machines

the atmospheric pressure filling machine is filled by the self weight of the liquid under atmospheric pressure. This kind of filling machine is divided into fixed time filling and fixed volume filling. It is only suitable for filling low viscosity liquids without gas, such as milk, wine, etc

the pressure filling machine is used to fill at a higher pressure than the atmospheric pressure, which can also be divided into two types: one is that the pressure in the liquid storage cylinder is equal to the pressure in the bottle, and the filling depends on the self weight of the liquid flowing into the bottle, which is called isobaric filling; The other is that the pressure of the building sealant jc/t 883 ⑵ 001 for stone in the liquid storage tank is higher than the pressure in the bottle, and the liquid flows into the bottle by the pressure difference. This method is often used in high-speed production lines. The pressure filling machine is suitable for filling liquid containing gas, such as beer, soda, champagne, etc

vacuum filling machine is used to fill when the pressure in the bottle is lower than the atmospheric pressure. This kind of filling machine has simple structure, high efficiency and a wide range of adaptability to the viscosity of materials, such as oil, syrup, fruit wine, etc

the process is generally as follows: the boxes with empty bottles are stacked on the pallet, sent to the pallet unloader by the conveyor belt, and the pallets are unloaded one by one. The boxes are sent to the unloader with the conveyor belt, and the empty bottles are taken out of the boxes. The empty boxes are sent to the washing machine by the conveyor belt, cleaned, and then transported to the packing machine, so that the bottles containing drinks can be loaded into them. The empty bottles taken out from the unloading machine are sent to the bottle washer for disinfection and cleaning by another conveyor belt. After being inspected by the high-precision inspection machine with the same processing accuracy as 1 through the micro extrusion tube of the bottles, they enter the filling machine and capping machine after meeting the cleaning standards. The beverage is bottled by the filling machine. The bottles loaded with drinks are capped and sealed by the capping machine and transported to the labeling machine for labeling. After labeling, they are sent to the packing machine for loading into the box, and then sent to the pallet stacking machine for stacking on the pallet and sent to the warehouse

the process of bottle filling line for various drinks is basically similar. However, due to the different nature of beverages, the filling machine and capping machine used are also different. For example, in addition to selecting a suitable filling and capping machine, a sterilization machine is also added to the beer filling line. The capping machine is selected according to the different capping shapes (crown cap, screw cap, plug cap, etc.)<2. Wood pulp and finished paper: the current tax rate of main wood pulp varieties is 5%/P>

source: China Industrial Equipment

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