Analyze and solve the situation that the sealing of the paper bag machine is not strict
the reason:
(1) The heat sealing temperature is too high;
(2) The pressure is too large;
(3) The heat sealing time is too long;
(4) The edge of the upper sealer is too sharp or the coated Teflon is damaged;
(5) The bottom sealing silicone rubber is too hard;
(6) During the compounding and aging process, a part of the binder penetrates into the inside of the film. The substrate is affected by the penetration of the binder, the toughness (impact resistance) is decreased, and the brittleness is improved;
(7) After the plastic composite packaging bag is cooled and placed, the heat sealing strength is enhanced, and there is also a tendency to become brittle.
Countermeasures:
(1) selecting a suitable processing temperature, pressure and heat sealing time according to the heat sealing property of the material of the inner sealing layer;
(2) improving the surface condition of the upper heat sealing knife to make the surface of the sealing device flat;
(3) Covered with Teflon cloth;
(4) Select a silicone rubber mat of suitable hardness.
The paper bag machine at the bottom is the key point of the paper bag machine. It is a new type of paper bag machine, which can be used to process some thick paper such as kraft paper and white cardboard. The papermaking efficiency is very high, which is very suitable for office teaching and so on. Industry needs.
This common bottom-bottomed paper bag machine has many features and features that make it very different from other paper bag machines:
1. Its discharge is through the method of steaming, using magnetic powder brake and tension control system to control the tension of the paper bag, and the system is automatic.
2. After the paper is caused, it will go through the relevant processing and cutting work, and output the paper from the inside of the bag.
3. The printing can be automatically tracked, so that the precision of printing is accurate. This method does not need to change the paper again. If the sudden situation occurs, the position can be automatically adjusted, which can save time and reduce the scrap rate of the villa door emulsifier pump two-wing rotary door emulsifier soda mixer static mixer.
4. Easy to operate, very well maintained, all automatically adjusted.
These are some of the performance characteristics of the square bottom paper bag machine. It can be seen that the paper bag machine is very practical. Now the technology is constantly improving, I believe that there will be more breakthroughs in the future.
China's packaging machinery started late. After more than 20 years of development, China's packaging machinery has become one of the top ten industries in the machinery industry, providing a strong guarantee for the rapid development of China's packaging industry. Some packaging machinery has filled the domestic gap and has been able to basically To meet the needs of the domestic market, some products are also exported. Moreover, China has made great progress since its accession to the WTO. The level of packaging machinery has risen very rapidly, and the gap with the world's advanced level has gradually narrowed. As China becomes more open, China's packaging machinery will further open up the international market. However, at present, the export value of China's packaging machinery is still less than 5% of the total output value, but the import value is almost equal to the total output value, which is far from the developed countries.
The development of the packaging industry in the future is not limited to the research and development and application of packaging materials itself, but also in the intensive processing. China's packaging industry is still in the downstream of the entire packaging industry chain, with low level packaging technology and sustainable development of the packaging industry in the future. There is also a need to fundamentally adjust the product structure. Luo Baihui, chief analyst of Jinmo Machinery Network, pointed out that in addition to steel belt balers, pneumatic balers and some small automatic balers, semi-automatic balers have certain scale and advantages, other packaging machinery is almost non-systematic and scale, especially Some package production lines with large demand in the market are monopolized by several packaging machinery companies in the world packaging market.
The domestic packaging industry must accelerate the pace of transformation and upgrading to meet the rapidly growing market demand and increasingly diversified customer requirements.
Packaging is a necessary condition for products to enter the circulation field, and the main means of achieving packaging is the use of packaging machinery. With the development of the times and the advancement of technology, packaging equipment is playing an increasingly important role in the packaging field. Its main functions are as follows:
(1) can greatly improve labor productivity
Mechanical packaging is much faster than manual packaging. For example, candy packaging can only pack more than a dozen pieces in 1 minute, while candy packaging can reach hundreds or even thousands of pieces per minute, increasing efficiency by dozens of times.
(2) can effectively guarantee the quality of packaging
According to the requirements of the packaging, the mechanical packaging can obtain the packaging with the same specifications according to the required shape and size, and the manual packaging cannot be guaranteed. This is especially important for export goods. Only mechanical packaging can achieve standardization and standardization of packaging, and meet the requirements of collective packaging.
(3) can achieve the operation that manual packaging can not achieve
Some packaging operations, such as vacuum packaging, inflatable packaging, body packaging, etc., are all impossible to achieve by hand packaging, and can only be achieved.
(4) can reduce labor intensity and improve working conditions
Manual packaging is labor intensive. For example, it is labor-intensive and unsafe to manually package large and heavy products. For light and small products, due to the high frequency and monotonous movement, workers are prone to occupational diseases.
(5) Labor protection for workers
For some products that seriously affect your health, such as dusty and toxic products, irritating and radioactive products, it is inevitable to avoid health hazard by hand packaging, while mechanical packaging can avoid it and effectively protect the environment from pollution.
(6) can reduce packaging costs and save storage costs
For loose products, such as cotton, tobacco, silk, hemp, etc., compression packaging with a compression packaging machine can greatly reduce the volume, thereby reducing packaging costs. At the same time, due to the large size reduction, saving storage capacity, reducing storage costs, and facilitating transportation.
(7) Reliable product hygiene
Some products, such as food and medicine packaging, are not allowed to be packaged by hand according to the hygiene law, because they will contaminate the product, and the mechanical packaging avoids direct contact with food and medicine, ensuring the quality of hygiene.
(8) can promote the development of related industries
Packaging machinery is a comprehensive science, which involves materials, processes, equipment, electronics, electrical appliances, automatic control and other disciplines, requiring all relevant disciplines to develop synchronously and harmoniously. How the problems of disciplines will affect the whole machine of packaging machinery performance.
Food paper bag machine should break the "small and scattered" situation and develop in a high-precision direction. From the perspective of product development, China still basically stays in the imitation stage, and its self-development ability is weak. Research funding only accounts for 1% of sales, while abroad Up to 8% to 10%. In general, compared with internationally advanced products, China's packaging machinery is at a disadvantage in terms of product development, performance, quality, reliability, and service.
Mechanical versatility, the development of small and medium-sized single machine, but the equipment is small, high precision, easy to install, easy to operate, and high degree of automation. Can adapt to the packaging needs of a variety of foods. It meets the requirements of food hygiene and is easy to clean and does not pollute food.
Intelligentization is a trend in the future of food paper bag machines. The role of smart packaging is to better provide safe and convenient packaging for food, and to keep the taste of food unchanged, which is why paper paper bags will gradually The reason for replacing plastic bags, we will introduce this trend in detail below.
First of all, it has the advantage of packaging fresh fruits and vegetables. Because of its poor gas permeability, traditional film packaging materials are not suitable for storing ready-made salads. Therefore, as long as the food is packaged in the traditional way, They tend to decay very quickly. Therefore, smart packaging, which controls the oxygen outlet and maintains an optimal environment, is the best packaging method for food during storage, storage and transportation.