Powder filling and filling new technology

A cm a GD company in the United Kingdom has produced a rotary powder filling machine called C o rn ian i. It can fill powders with large volume density and good flowability at one time according to their weight. The C o rn ian i new filling machine is based on the proven technology of a rotary liquid weighing filling machine, and a weight sensor or an automatic weighing table is installed below each filling head. Before the filling is started, the weight of the container is weighed, and then as the filling process progresses, the sensor transfers the weight of the filling material in the container to the control system. The microcomputer in the system is used to calculate the mass flow rate of the material and thus obtain the most appropriate feed cut-off weight. The feed cutoff is automatically adjusted and the target fill weight is automatically reached.
This filling machine of the new C o rn ian i not only has a large flow rate per filling nozzle, but also has a variable aperture just like a camera shutter, which is used to regulate the flow of powder, and the dust is discharged through the coaxial dust removal pipe at the nozzle. This new filling machine can fill most powders with good flow properties, and since the weight of each container can be detected separately, the filling volume is not affected by short-term or long-term changes in bulk density. When you change the fill volume, simply use the keyboard to enter the new weight without replacing the part.
The receiving table of the filling machine adopts a vibration type to facilitate the falling of the powder into the container. It can be filled with various types of containers, such as glass or plastic cans or boxes, and can be installed in vertical case packers. This type of machine is capable of filling a wide variety of free-flowing products, including spray-dried detergent powders and chocolate powders. The filling rate depends on the number of filling heads and can reach 60-600 pieces/minute. Recently, the British company GEI has also newly developed a Th e ta vacuum-assisted powder/aggregate filling machine. This machine can not only smoothly handle tough products, but also can be filled with high-speed packing or with a tube sleeve. Semi-rigid packaging. The aircraft combines many research results into one, including random accessibility, replacement time, and hygiene improvements. In particular, its open structure design meets US hygienic standards for dry powder packaging. This model uses a vacuum to suck the powder into the container and the vacuum is disconnected when the powder reaches the height of the screen type vacuum suction port. The degree of vacuum changes with the feedback signal of the weight detection device, so that the change in the bulk density of the powder is compensated accordingly.
Currently, GEI's Th e ta filling machine is equipped with three weight detection devices, which are used to check the weight of the box, monitor the filling amount of the Th e ta filling machine and carry out the final load after the weight is filled by the single-head screw feeder. Testing. At the same time, according to the feedback signal of the second weight detection device, the vacuum level of the Th e filling machine is adjusted to compensate for the change in the bulk density of the packaged product; on the other hand, the rotation speed of the screw is adjusted to the feedback signal of the third weight detection device. The right degree.
In addition, the German manufacturer Wuesste has adopted a brand-new filling method on the latest volumetric powder and granule filling machines. It also recently introduced a Prödie 2000 rotary vacuum powder filling machine to the market. P rem ie r2000 filling machine continuously detects the output of each filling head through the weight detection device so that the volume density deviation can be immediately compensated. The control system uses a PC, which also includes a product database display that shows the ingredients and operating parameters within the minimum and average weight specifications.
Mechanically, the P rem ie r 2000 machine is maintenance-free. It uses a sealed, once-lubricated bearing and a belt drive. No lubrication is required during use. In addition, the height of the packaging container can be adjusted within seconds by the lifting device of the electric hopper. According to reports, this type of 2000 high-speed test run for 6 hours, after filling 35000 packs, the efficiency reached 99%, compared with the target filling amount, only pack 0.07g more.
The core of P rem ie r2000 filling system lies in its small feeding hopper (humble feeding hopper). In order to ensure uniform bulk density and flow, there are finger blades in the hopper. Stir the animal feed so that the square meter below the hopper always accepts a certain amount of filling. The metering cup is shallow and open at the bottom, and it accepts material on the mounting plate. The specification of the measuring cup can be adjusted manually and, if necessary, it can also be adjusted by the servo motor during operation of the filling machine. Once the metering cup is full, the machine stops feeding and uses the cam to move the metering cup away from the fixed plate to the discharge station. The material in the metering cup falls into the feeding nozzle, and the feeding nozzle is one by one. The material is completely released into the container and the powder will not be scattered. Therefore, this machine is suitable for the filling of products such as cereals, rice, wheat, chocolate powder, seasoning powder and high fat soup.