Vacuum packaging machine

The vacuum packaging machine consists of a vacuum system, a pumping and airtight sealing system, a thermocompression sealing system, and an electrical control system. The vacuum packing machine uses plastic or plastic aluminum foil film as a packaging material to vacuum-package the articles. The vacuum packaging machine can automatically withdraw the air inside the packaging bag and complete the sealing process after reaching a predetermined vacuum level. It can also be recharged with nitrogen or other gas mixture and then complete the sealing process. Vacuum-packed items can prevent oxidation, mildew, insects, rot, and dampness, extending shelf life.

Basic Information

Chinese name: Vacuum packaging machine Chinese Alias: vacuum packaging machine or exhaust packaging machine English name: Vacuum packaging machine

Use: Packing Product origin: <br> 40 years <br> works of the 20th century

The tracking system is the control core of the packaging machine and uses forward and reverse bidirectional tracking to further improve the tracking accuracy. After the machine is running, the film mark sensor continuously detects the film mark (color mark), and at the same time, the mechanical part tracks the micro switch to detect the position of the machine. The above two signals are sent to the PLC. After the program operation, the output of the PLC is Y6 ( The chase) and Y12 (anti-recovery) control tracking motor forward and backward tracking, timely detection of packaging material errors in the production process, while providing accurate compensation and correction, to avoid the waste of packaging materials. If the test can not meet the technical requirements after tracking a predetermined number of times, it can be automatically shut down for inspection, to avoid the production of waste products; due to the use of frequency control, greatly reducing the chain drive, improving the stability and reliability of the machine operation, reducing The noise of the machine's operation.

Although the drive system used in the vacuum packaging machine has relatively simple application functions, it has high requirements on the dynamic performance of the drive, and the system requires fast dynamic follow-up performance and high steady-speed accuracy. So must consider the dynamic technical indicator of the frequency converter, choose the high-performance frequency converter to meet the requirement.

Model classification

1, stretch film fully automatic stretch film vacuum packaging machine principle is to use the forming mold, the first heating the film, and then use the forming mold punched into the shape of the container, and then the packaging into the formed lower chamber, Then vacuum packaging. Mainly by the vacuum system, suction inflatable sealing system, hot pressure sealing system, electrical control system and other components.

2. The working principle of continuous continuous vacuum packaging machine is to use chain drive, automatic swing cover, continuous output products, the whole machine adopts imported PLC programmable logic controller, computer touch screen operation, operating system sealed, the whole machine can be washed with water .

3. The external pumping external vacuum packaging machine is a vacuum packaging device that puts the packaging on the outside of the vacuum chamber. It is mainly designed for the vacuum packaging of larger packages, and the vacuum pumping machine The structure is different, the external suction type vacuum packaging machine is placed in the packaging bag of the packaged object through the air suction nozzle, the air is evacuated, the air extraction nozzle is withdrawn, and then the sealing is completed.

4. The vertical cabinet-type vacuum packaging machine is mainly used for vacuum packaging of powders, fine particles, liquids or large packaged objects. The volume of the vacuum chamber is large, and the bag opening style is sealed. Can be packaged with the product (such as: barrels, boxes). Place it in a vacuum chamber and complete the vacuum sealing of the inner bag. Open door operation form, easy to hold heavy objects. The machine can be customized according to the special size and configuration requirements. Widely used in feed, chemical, food, electronics and other industries 5, to the bag type automatic vacuum packaging machine is dedicated to snack foods such as chicken feet, duck claws, duck neck, dried bean, fish, fish, etc. Continuous automatic vacuum packaging equipment for all kinds of cooked foods, which can automatically achieve bagging, bagging, coding, support bags, drum bags, feeding, metering, filling, vacuuming, sealing, conveying, etc. until fully automated production of finished products. , greatly increase production efficiency.

6, vacuum nitrogen filling vacuum nitrogen filling packaging food into the bag, the air inside the bag to reach a predetermined degree of vacuum, then recharge nitrogen, carbon dioxide, oxygen and other gases, and then complete the sealing process. Applicable to all kinds of packaging of plastic composite film and plastic aluminum foil composite film, for liquid, semi-fluid, solid granular, powdery, paste-like food, fresh fruit, vegetables, rice, flowers, chemicals, valuable medicinal materials, precious paintings , Electronic components and a variety of anti-mite, anti-corrosion, moisture-proof, anti-mildew, anti-oxidation products vacuum packaging or vacuum nitrogen packaging, to extend its shelf life.

Precautions

1. The vacuum packaging machine should be used in an environment where the temperature is -10°C-50°C, the relative humidity is not more than 85%, there is no corrosive gas in the surrounding air, no dust, and no explosive danger. Like a baler and a shrinking machine, this vacuum packaging machine is a three-phase 380V power supply.

2, for the vacuum packaging machine to ensure the normal operation of the vacuum pump, vacuum pump motor does not allow reverse. The oil level should be checked frequently. The normal oil level is 1/2-3/4 of the oil window (not to be exceeded). When there is water in the vacuum pump or the color of the oil turns black, new oil should be replaced (usually one or two consecutive jobs Once in a month, use 1 # vacuum gasoline or 30 # gasoline, oil can also be).

3, impurities filter should be frequently dismantled (usually 1-2 months to clean once, such as packing debris-like objects should shorten the cleaning time).

4. After 2-3 months of continuous work, the rear cover 30 shall be opened to lubricate the sliding parts and the switch bumps. Lubrication shall be applied to the connection points of the heating rods depending on the conditions of use.

5. Always check the decompression, filtration and oil mist triple parts 24 to ensure that there is oil in the oil mist and oil cup (sewing machine oil) and there is no water in the filter cup.

6. The heating strips and silicone strips should be kept clean and must not be stuck with foreign materials so as not to affect the sealing quality.

7. On the heating rod, the two-layer adhesive paste under the heating sheet plays the role of insulation. When there is damage, it should be replaced in time to avoid short circuit.

8, the user-owned working gas source and gas source, vacuum packaging machine working pressure has been set to 0.3MPa, more appropriate, no special circumstances do not adjust too large.

9. The vacuum packaging machine is not allowed to be tilted and impacted in the handling process, and it cannot be carried down.

10. The vacuum packaging machine must have a reliable grounding device when it is installed.

11. Never put your hand under a heating stick to prevent injury and immediately cut off the power in an emergency.

12. After work, first energize after ventilation, and stop the air after power off.

Application area

Vacuum packaging machine is a plastic or plastic aluminum foil film packaging material, vacuum, liquid, solid, powdery paste food, food, fruit, pickles, preserved fruit, chemicals, herbs, electronic components, precision instruments, rare metals and other vacuum Packaging, vacuum packaged items can prevent oxidation, mildew, insects, rot, damp, extend shelf life. It is especially suitable for tea, food, medicine, shops, research institutes and other industries. It has the advantages of beautiful appearance, compact structure, high efficiency, easy operation, seating wheels at the bottom, and easy movement.

development trend

Vacuum packaging technology originated in the 1940s. In 1950, polyester and polyethylene plastic films were successfully used for vacuum packaging. Since then, vacuum packaging has been rapidly developed. Its technological development trend is mainly reflected in the five aspects of high productivity, automation, stand-alone multi-function, component production line, and adoption of relevant new technologies.

1, high productivity. The productivity of vacuum packaging machines has grown from a few parts per minute to a few 10 pieces, and the productivity of thermoforming-filling-sealing machines can reach over 500 pieces/minute.

2, automation. The dual-chamber vacuum packaging machine has the functions of vacuum pumping, sealing, printing, and cooling. It is mainly used for the packaging of tea, peanut, shrimp, corn and other foods.

3, stand-alone multi-function. In a single machine to achieve multi-function, can easily expand the scope of use. To achieve stand-alone multi-function must adopt a modular design, through the transformation and combination of functional modules, become suitable for different packaging materials, packaging items, packaging requirements of different types of vacuum packaging machine. Representative products include mandrel wheel multi-station bag vacuum packaging machine produced by HESSER factory of Germany BOSCH company. Its functions of bag making, weighing, filling, vacuum pumping and sealing can be completed on a single machine. .

4, the composition of the production line. When more and more functions are needed, concentrating all the functions on a single machine will make the structure very complicated and the operation and maintenance will be inconvenient. At this time, several machines with different functions and efficiencies can be combined into more complete functions. production line.

5. Adopt new technologies. In the packaging method, a large number of inflatable packagings are used instead of vacuum packaging, and the three aspects of inflation components, packaging materials and inflatable packaging machines are closely combined; in terms of control technology, more computer and microelectronics technologies are applied; Heat pipe and cold sealing technology can also be used to directly install advanced devices on vacuum packaging machines, such as computer-controlled high-precision combination scales for coarse-grained materials; on rotating or vacuum packaging machines, application of advanced high-speed arc cam indexing Machinery and so on.