Vegetable Vacuum Packing Machine

1. Modified atmosphere fresh-keeping packaging machine

Modified atmosphere packaging, also known as MAP, is a popular technology for food preservation packaging in the world today. It uses protective mixed gases such as CO2, O2, N2, etc. Most of the spoiled microorganisms grow and multiply, and reduce the respiration rate of plant foods such as fresh fruits and vegetables, thereby keeping food fresh and prolonging its freshness.

The packaged shape of the finished product is box or bag, and it is suitable for the logistics and sales of food in small packages in supermarkets and large packages in wholesale markets.

2. Several protective gases for food modified atmosphere preservation packaging

The protective gases commonly used at home and abroad are CO2 (carbon dioxide), O2 (oxygen), and N2 (nitrogen). Their respective functions are:

CO2: It is a gas agent that inhibits the growth and reproduction of bacteria. Its characteristics:

The best effect is in the lag phase of the bacteria's reproduction curve (the inhibitory bacteria index is within 100/100g);

Easily soluble in water and fat at low temperatures;

It is effective against most aerobic bacteria, but not effective against anaerobes and yeasts.

Generally, the low concentration that inhibits bacteria is 30%.

O2: It has three functions:

Inhibit the growth and reproduction of anaerobic bacteria;

Keep the red color of fresh pork, beef and lamb;

Maintain the metabolism of fresh fruits and vegetables aerobic respiration.

N2: Inert gas, does not work with food, only as a filling gas for mixed gas.

3. Scope of application

It can be widely used in the packaging of snack foods such as raw and cooked meat, poultry, fish, fruits and vegetables, or cooked foods such as bread, cakes and box lunches. Because the original taste, color, shape and nutrition of the food are better maintained, it can achieve The longer shelf life has attracted more and more ignorance from food processors and consumers. Foods using modified atmosphere packaging in the European and American markets have developed rapidly, with an annual growth rate of 25%. At present, there are 5 billion boxes of raw and cooked products in the domestic market each year with modified atmosphere packaging. The annual growth rate is 20%, which replaces the shortcomings of traditional food vacuum packaging at high temperature and high-pressure sterilization.

4. The performance characteristics of the modified atmosphere fresh-keeping packaging machine produced by our company:

This machine is widely used for: fresh meat, cooked meat products, fish, poultry, shellfish, fruits, coffee, tea, vegetables, bread and other supermarket foods. Modified atmosphere packaging has the characteristics of keeping food quality, freshness, color, shape and taste, and is popular in the European and American markets.

This machine is controlled by electricity, gas, and machine. The programmable controller (PLC) is made of Japan's "Mitsubishi" brand. Each part of the action and control parameters can be set and modified by the PLC. Stable performance, man-machine interface dialogue, convenient and reliable control, and low failure rate.

Manually put the filled packaging box into the automatic conveying mechanism, and it can be completed automatically and continuously. Packing box automatic input, vacuuming, fresh-keeping gas filling, hot-press sealing, slitting, and finished packing box output are automatically completed.

Photoelectric tracking of the cover film pattern to ensure the integrity of the packaging and printing patterns, photoelectric tracking of no boxes, automatic shutdown protection when the packaging box is misplaced, and the quality of the finished product.

The whole machine is made of SUS304 stainless steel according to the design requirements to ensure the long-term stability of the equipment and meet the food hygiene requirements. The principle of vacuum pumping is used to avoid the use of vacuum generators to avoid the phenomenon that the gas ratio is not up to the standard and the residual gas contaminates the food. The performance of the vacuum pump can reach the ultimate vacuum, and the gas replacement rate in the packaging box can reach 99%, which truly realizes the function of modified atmosphere packaging.

The operation of the equipment adopts a servo motor control system, which is fast and stable, and the performance of the stepping control system is reliable. The film roll is equipped with a positioning device, which is convenient and quick to replace within three minutes. The electric control box adopts the technical standards of the domestic packaging machine industry and is installed independently. This machine is a single-phase 220V power supply with built-in leakage protection function to ensure equipment and personal safety. The space at the bottom of the equipment adopts a stainless steel mesh sealing protection device to prevent rodents from entering the circuit part with a leakage protection device, and the air source is automatically cut off when the door is opened to ensure the safety of the equipment and personnel.

Compared with similar products in the market, the machine is designed for easy mold replacement. The entire set of mold replacement time only needs to be completed within 20 minutes. The mold design can be split to facilitate cleaning of the equipment. The sealing, cutting, vacuuming, inflation, and deflation time are all adjustable on the PLC touch screen. Air pressure heat sealing is adopted, and the sealing is smooth and without air leakage. The vacuum pump achieves precise gas replacement, which is different from the false gas replacement rate on the market.