Most food manufacturers use single-column forming-feeding-sealing packaging machines. For large bags, a single line of packaging machine can meet the needs of the general production line. But for most health food and seasoning factories, often need to pack a small amount of packaging (such as 1 to 10 grams of small packaging per bag), then the single row of small bag packaging machine will expose the shortcomings of insufficient production capacity, need several or even dozens of single row small bag packaging machine to meet the needs of the production line. Apart from the large area and waste of manpower, the number of packaging machines is too much, also not conducive to the realization of the rear packaging or box automation.

So, what are the reasons that affect the running speed of the single row bag packaging machine?

1. Before the material enters the packaging machine, it should be measured by volume or mass, and then fall down into the made bag. The accurate measurement and fall of the material are required by time;
2. Packaging materials generally use composite film, the improvement of mechanical speed requires the film to have higher strength, and the strength, thickness of the packaging material is higher cost;
3. The higher the packaging speed, the shorter the heat sealing contact time and the corresponding increase in the sealing temperature, but the sealing temperature is too high, easy to damage the packaging materials. Therefore, the sealing temperature also limits the working speed of the machine.

Due to the influence of material measurement, packaging film and sealing effect, vertical bag-making and packaging machinery cannot simply improve the speed of mechanical operation to improve the actual packing speed. On the premise of ensuring packaging quality and accurate measurement, from the perspective of practice, the three-in-one action of “bag-feed-sealing” of vertical bag-making packaging system should not be higher than 100 / min. Since the speed of single column packaging has the upper limit, it is natural that the design of packaging machinery begins to develop from single column to multi-column, which well solves the need for high-speed packaging of small bags.

At present, the application and development of multi-row bag packing machine in the pharmaceutical industry has made great progress. In the future in food, daily chemical and other fields, the multi-column bag packaging machine will have a very broad space for development.