Although the domestic packaging machinery market has a bright future, problems such as stand-alone automation, unsightly appearance, short life, poor stability and reliability have also criticized domestic packaging machinery products. Professor Li Zhenliang from the School of Mechanical Engineering of Tianjin University of Science and Technology was deeply touched by this: "China's packaging industry has weak self-development capabilities and lacks a base for scientific research and production. At the same time, there are few leading domestic enterprises with large production scales. Compared with the packaging machinery products, the gap is the room for domestic machinery manufacturers to rise. Especially in the metal belt machines such as automatic steel belt baler. "
Notice about the main points of the examination and approval of the administrative licensing of cosmetics issued 20 years ago, the first application of PLC (programmable controller) in packaging machinery products opened the era of packaging machinery automation technology. The earliest types of semi-automatic / automatic packaging machinery have appeared, such as semi-automatic baler and automatic baler. Later, with the intervention of control and drive technology, servo technology and digital-to-analog conversion concepts, the packaging machinery market has undergone many rounds of transformation. At present, China has become the world's largest commodity production and export country. At the same time, global attention is also focused on the fastest growing, largest and most promising Chinese packaging market.
Flexible production-making product packaging more flexible
At present, in order to adapt to the fierce competition in the market, the major companies have become shorter and shorter in product replacement. For example, cosmetics production can generally be changed every three years or even quarterly, and the demand is relatively large (such as wooden boxes used for packaging device goods), so the flexibility and flexibility of packaging machinery are very high. Requirements: The life of packaging machinery is much greater than the life cycle of products. The concept of flexibility can be considered from these three aspects: volume flexibility, construction flexibility and supply flexibility. Specifically, in order to make packaging machinery have good flexibility and flexibility, and improve the degree of automation, it is necessary to adopt microcomputer technology, functional module technology, etc. For example, in a food packaging machine, combining different units on the basis of one machine, using multiple feed inlets and multiple different folding packaging forms, you can package different types of products at the same time. Multiple manipulators operate under the supervision of a host computer and pack different types of food in different ways according to instructions. If there is a request for product change, just change the calling program in the host.
The field of safety inspection is gradually expanding
Safety is the first keyword in any industry, especially in the packaging industry. In the food industry, safety testing technology has developed rapidly in recent years. Specifically, it is to improve the accuracy of the mechanical products to complete the ingredients. At the same time, it should also be able to record and store information such as the operator, the variety of ingredients, the production time, and the equipment number. We can achieve our purpose through weighing, temperature and humidity sensors and other functional components.
Motion control technology
The development of motion control technology in China is very rapid, but the development momentum in the packaging machinery industry appears to be insufficient. The role of motion control products and technology in packaging machinery is mainly to achieve precise position control and strict speed synchronization requirements. It is mainly used for loading and unloading, transportation, marking, palletizing, unstacking and other processes. Professor Li believes that motion control technology is one of the key factors distinguishing high-end, middle-end and low-end packaging machinery, and is also the technical support for the upgrade of packaging machinery in China. Because the entire machine in the packaging industry is continuous, it has extremely high requirements for speed, torque, accuracy, and dynamic performance, which precisely fits the characteristics of servo products.
Manufacturing execution system applications need to break through the bottleneck
In recent years, integrated technology has developed rapidly in the packaging industry. There are many types of packaging machinery and equipment, which makes the interface of different manufacturers' products interface, the transmission method between the equipment and the industrial control computer, and the information and equipment encounter great difficulties. In this case, packaging companies turned to the Manufacturing Execution System (MES) for solutions. But it is understood that the application of MES in the packaging industry is not as good as people expected.
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