The vacuum packaging machine guarantees that the packaged articles are retained in an anaerobic state, which can effectively prevent oxidation and spoilage of the articles, and is an important device for vacuum packaging of meat products today. In the early 1990s, the continuous vacuum packaging machine was mainly used. However, with the expansion of the scale of use, it is known that the vacuum packaging machine alone cannot meet the needs of the market. Through the introduction of technology, China has designed and manufactured automatic vacuum packaging equipment, which is widely used in the advantages of low cost, simple operation, convenient maintenance and reliable function.
1. Construction and working principle
The automatic vacuum packaging equipment is composed of an electrical system, a vacuum system, a heat sealing system, a conveyor system, and the like. When working, the packaged articles are placed on the conveyor belt and placed on the conveyor belt. The conveyor belt is moved forward to a working position by the gas-electric control system. Then the vacuum cover is moved down, the vacuum chamber is sealed, and the vacuum pump starts to work and pumping. The electric contact vacuum gauge controls the vacuum. After the vacuum requirement is reached, the gas and electricity control system performs heat sealing and cooling, and then the cover is opened to restart the next cycle. The recurrent procedure is: conveyor in, stop - vacuum - heat sealing - cooling - deflation - vacuum chamber opening - conveyor feeding.
2. Design features
The automatic vacuum packaging equipment is a multi-station continuous production equipment for conveyor belt transmission, which is easy to operate, simple in maintenance, widely used, low in cost and high in efficiency. Its characteristics are described below.
2.1 is widely used. After purchasing this machine, you only need to select different specifications, materials, and brilliance bags according to the product requirements to package the products you need, without special molds and packaging materials. The machine also adjusts the four tilt positions by 6 degrees, 10 degrees, 20 degrees, 30 degrees according to the needs of different types of product packaging. The conveyor belt can be adjusted from horizontal to 30 degrees, so the performance is overall, granule, powder, Packed in various forms such as liquid juice.
2.2 manipulation convenience. The operator simply presses the start button and the device can continue to run continuously, and then the bagged items are placed on the conveyor belt and pressed to produce continuously. For different specifications, simply loosen the bracket screws and adjust the position of the brackets without special technical training.
2.3 Simple maintenance. Most of the inlet vacuum packaging machines are controlled by computer programs. The maintenance staff must be specially trained and equipped with special tools and measuring instruments. The domestic automatic vacuum packaging equipment is controlled by contactor and relay, the line is intuitive, the fault is remarkable, and the ordinary electrician can repair.
2.4 low cost and efficiency. A continuous vacuum packaging machine at the entrance generally needs to invest three or four million yuan. Although the vacuum is relatively high, the investment is too large. Moreover, most foods, especially high-temperature products, do not require a high degree of vacuum. Domestic automatic vacuum packaging The equipment can invest more than 30,000 yuan at a time, and the vacuum can reach more than 97%. It can meet the processing needs of high-temperature flexible packaging products, household light meals, quick-frozen foods, etc., which are kept at room temperature, and the conveyor belt is continuously produced, with high efficiency, and can be produced in a single machine. 1.5 tons of 250 grams / bag) products, a device can meet the needs of general meat processing enterprises.
3. Application in the food industry
With its inherent strengths, automatic vacuum packaging equipment is widely used in high-temperature flexible packaging products in the food industry, packaging of dried vegetables and light meals, packaging of frozen foods, and packaging of wild vegetables and soy products.
Although the products have been produced for a long time and the area is wide, the market is restricted because of the warranty period. High-temperature sterilized flexible packaging products after vacuum packaging are popular with consumers because of their long shelf life and convenient carrying. Generally, the vacuum degree can reach 94%, and the vacuum degree of the automatic vacuum packaging equipment can reach over 97%, and the sealing quality is not disordered, which is suitable for large-scale processing and production.
3.2 Packaging of stewed vegetables and light meals. In the market economy is growing,
Today, the pace of life is gradually accelerating, and the dishes and light meals are popular with the broad-based salary class because of their brilliance, delicious taste, fair nutrition, and convenience. The automatic vacuum packaging equipment work department can be adjusted, suitable for soup and dish packaging. After the vacuumed packaging and the light meal are prepared, the shelf life can be extended while keeping the taste unchanged, which is more suitable for the chain operation of the famous store products.
3.3 Frozen food packaging. Automatic vacuum packaging equipment is used in meatballs, meat paste products and other foods that need to be vacuum packed. These foods are vacuum-packed and then frozen and stored at low temperature. On the one hand, they can keep food fresh and have a certain shelf life. On the other hand, Ensure product hygiene and prevent contamination.
3.4 Finishing and packaging of agricultural and sideline products. Following the rapid development of science and technology, the market is increasingly demanding deep processing of agricultural and sideline products. Farmers also pay more attention to the deep processing of agricultural and sideline products. After the selection of vegetables and soy products, they are packaged in vacuum packaging machines according to user needs. The packaged item is retained in an anaerobic state to extend the shelf life.
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