At present, food factories use a wide range of bag packaging, and horizontal pillow packaging machines are mostly used for large-sized solids of a regular shape. For smaller solids, granules, powders and even liquid products, "vertical" (vertical) packaging machinery is used, that is, bagging, feeding and sealing in the direction perpendicular to the ground. Due to the low cost of packaging materials, the packaging machinery is simple in structure and easy to maintain, this packaging form is widely used in food, daily chemical, pharmaceutical and other industries.
Most food manufacturers use a single-row molding-feed-sealing packaging machine. For larger bags, a single line of packaging machines can meet the needs of the general production line. However, for most health foods and seasoning plants, it is often necessary to pack smaller packages (for example, 1 to 10 grams per bag). At this time, the single-package machine exposes the shortcomings of insufficient capacity and requires several even Dozens of single-row pouch packaging machines can meet the needs of the production line. Due to factors such as large floor space and waste of manpower, the number of packaging machines is too large, which is not conducive to the automation of the subsequent packing or boxing.
So, what are the reasons that affect the speed of the single-row bag packaging machine?
1. Before the material enters the packaging machine, it must be measured by volume or mass, and then dropped into the finished bag. The accurate measurement and falling of the material are time-required;
2. The packaging materials generally adopt composite film, the improvement of mechanical speed requires higher strength of the film, and the cost of packaging materials with high strength and large thickness is also higher;
3. The higher the packaging speed, the shorter the heat sealing contact time, the correspondingly higher sealing temperature, but the sealing temperature is too high, which easily damages the packaging material. Therefore, the sealing temperature also limits the speed of the machine.
Subject to factors such as material metering, packaging film, and sealing effects, vertical bag making machines cannot simply increase the speed of the machine to increase the actual packaging speed. Under the premise of ensuring the quality of packaging and accurate measurement, from the practical point of view, the "bag-feed-seal" trinity of the vertical bag-making system should not be higher than 100/min. Since the speed of single-row packaging has an upper limit, it is natural that packaging machinery design has begun to evolve from single-column to multi-column, which has well solved the need for high-speed packaging of small bags.
The multi-column packaging system used in China in the last century relies on imports. Because of the high price, food manufacturers rarely use them, and almost all users are in the pharmaceutical industry. In recent years, the multi-row small bag packaging machinery that has been independently developed and produced in China has been warmly welcomed by domestic food manufacturers. In today's fierce competition, expanding production scale, increasing production efficiency, and reducing costs have become the goals that many manufacturers are constantly pursuing.
Based on the European multi-row pouch packaging technology, Qiao Fu Enterprise Co., Ltd. developed and launched a vertical multi-row pouch packaging machine in 2002. This vertical multi-row pouch packaging machine adopts PLC to control stepless speed regulation. For the design to ensure the quality of packaging, the working speed of each column of packaging lanes, namely the "bag-feed-seal" trinity speed control Within 60 / min. It gives the user plenty of room to choose the right composite film packaging material, and achieves stable feed metering and excellent sealing results. The packaging form with three-side seals saves packaging materials to the utmost extent.
At present, the application and development of multi-row bag packaging machines in the pharmaceutical industry has made great progress. In the future, in the food, daily chemical and other fields, multi-line bag packaging machines will have a broad space for development.
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