The packaging machine is designed to organize a continuous process of packaging (volumetric method) of dust-forming bulk products (flour, dry milk, starch) and their packaging in polymer films (polypropylene, duplex, triplex) with the formation of pillow bags (stand-up bag).
The equipment consists of a pneumatic mechanical packaging machine and a screw volumetric batcher.
The packaging machine, model AF-50-H, is the most productive equipment for packaging dust-forming products (from 50 to 1500 cm3), and is also capable of effectively pulling packaging films of various compositions, with a width of 130 to 500 mm.
Characteristics.
| Power supply, V/Hz | 380/50 |
| Electricity consumption, kW/hour | 2,5 |
| Pneumatic supply**, atm./l.min. | 6/150 |
| Length/Width/Height (not more than), mm | 1700/1200/3200 |
| Weight (not more than), kg | 480 |
| Film roll width/diameter (max), mm | 500/300 |
| Productivity (max.)*, packs/hour | 2000 |
| Volume of storage bin, l | 60 |
| Dosage range, cm3 | 50-1500 |
| L/W of package (max), mm | 400/240 |
* Performance depends on the volume and properties of the product being dosed, the length of the package and the properties of the packaging material.
** To ensure the operation of the pneumatic drives of this filling machine, a “compressor” (supplied separately) is required.
Description of work.
The packaged product is poured down the inclined walls to the hopper neck, connected to the tube of the sleeve-forming device. A vertically positioned auger passes through the neck and the tube, the upper part of which is fixed in the electric drive. Spilling through the neck, the product fills the cavities between the screw surface of the auger and the inner surface of the tube. To prevent it from spilling, a valve is provided in the lower part of the tube.
When power is supplied from the CT201 meter, located in the control unit of the packaging machine, the electric drive begins to rotate the auger, thereby moving the product from the hopper down the tube. The rotation speed of the auger is determined by the values set on the frequency converter. In addition, the electric drive activates the “stirrers” in the hopper, which mix the product, preventing bridging and better pouring of the product to the hopper neck.
During the rotation of the screw, the valve in the lower part of the tube opens and the product moved by the screw is poured into the packaging film rolled up on the tube like a sleeve with a sealed back seam and bottom (packaging blank). After reaching the number of pulses set on the counter “CT201”, the power supply to the electric drive is stopped, the screw stops and the valve on the tube closes, cutting off the delivery of a dose of product to the packaging blank. At the same time, the counter “CT201” sends a pulse to the microcontroller that controls the operation of the packaging machine.
Having received the pulse, the microcontroller activates the film pulling mechanism. When pulling, the roll unwinds and the film is rolled up, through the collar, into the sleeve around the tube. Having pulled the film to the required distance (determined by the photo mark or the value of the parameter “СЧt. 1”), the microcontroller activates the soldering unit.
The soldering unit uses the principle of constant heating and simultaneously seals the top seam of the filled package, the bottom and side seams of the next package with the “Euroche” type of seam in one go. At the same time, at the moment of welding, the filled package is separated by cutting the film with a mechanical serrated knife. The cut package falls on the floor, into a special container (box) or onto a discharge conveyor. At the same time, the microcontroller of the packaging machine sends a pulse to the “CT201” counter, which supplies power to the dispenser electric drive, filling the next package. Additionally, the microcontroller monitors the moments of emptying the hopper, the end of the roll of packaging material and other emergency situations.
Peculiarities.
The packaging machine is ideal for packaging dust-forming bulk products such as flour, dry milk, starch, cement, chalk. The machine allows for arbitrary change of the dose size and the packaged product, but it should be borne in mind that this machine uses the volumetric dosing method, measuring the dosed product not by weight, but by the number of revolutions of the auger. Therefore, when changing the dosed product, it is necessary to take into account its density, since with the same number of revolutions for different products, the weight of the portions may differ.
The difference between this packaging machine and similar AF-35-H and AF-45-H is the use of a pneumatic-mechanical packaging machine, which uses combined drives (the film is pulled by an electric motor and belts, and the compression and unclenching of the welded elements of the soldering unit is done by pneumatic drives). This combination significantly increases the speed of the machine and allows the use of wider packaging films than on the AF-45-H. At the same time, the presence of pneumatic drives requires the use of a compressor, and as a result increases the noise level of the filling machine, but the noise level does not reach that produced by the AF-35-H.
The filling and packaging machine requires floor placement and has limitations on the width of the film used and the height of the formed package, specified in the technical specifications.
Equipment.
Standart equipment:
Volumetric screw dispenser with a storage bin with agitator;
Former of 3-seam packaging “pillow” – collar (up to 500 mm);
Automatic belt feed system for packaging material by “photo mark”;
Sealing unit of the “euro-roll” type of longitudinal and transverse seams of the packaging;
Unit for putting the date on the seam of the packaging (day, month, year “XX XX XX”);
Electronic control unit with light indication and monitoring of emergency situations.
Additional equipment:
Tube with collar (for changing the film width);
Unit for forming a “stand-up package”;
Encoder (for pulling the film along the length of the package);
Thermal printer (from 6 characters, at any point of the package);
Device for applying a punch to the seam (“Euro loop”, “Euro punch”);
Protective cover;
Compressor.
Equipment:
Electric drives – STM (Italy);
Pneumatic drives – CAMOZZI (Italy);
Used – Libra, MiKra (Ukraine);
Frequency converters – INVT, HYUNDAI (Korea);
Product contact units – 304 steel.
Possibilities: 2000 packs/hour.
Type of packaging: package (pillow/standing).
Products: dust-forming products.