Filling and sealing machine has good cost performance

In order to meet the market demand, China's filling and sealing machine industry is actively getting rid of the image of large quantity and low technical content, and is developing towards multi-functional, modular, intelligent control and high precision Food industry products need packaging The quality of packaging and printing directly affects the quality, grade and marketing of food industry products Although filling and sealing machine can not determine the internal quality of food, good packaging can guarantee and extend the quality and life of food, extend the shelf life of food, and facilitate carrying and transportation Filling and sealing machine in order to meet the market demand, China's filling and sealing machine industry is actively getting rid of the image of large quantity and low technical content, and developing towards the direction of multi-function, modularization, intelligent control and high precision Food industry products need packaging The quality of packaging and printing directly affects the quality, grade and marketing of food industry products Although filling and sealing machine can not determine the internal quality of food, good packaging can guarantee and extend the quality and life of food, extend the shelf life of food, and facilitate carrying and transportation The packaging can win more reputation for products, establish brand, prevent fake and inferior, and provide convenience for consumers to choose products With the further adjustment of the product structure of the food industry and the upgrading and upgrading of the products, the requirements for packaging and decoration printing and packaging image are correspondingly higher From the perspective of the mechanism of the filling and sealing machine, it is because of the existence of the fluid velocity difference that the fluid layers are mixed with each other Therefore, the filling process always involves the fluid shear rate lhhaa620 Shear stress is a kind of force, which is the real reason for bubble dispersion and droplet breakage in filling application It must be pointed out that the shear rate of each point in the whole stirred tank is not the same The discharge volume of the blade is directly proportional to the flow standard of the blade itself, the first power of the blade speed and the third power of the blade diameter The shaft power consumed by filling is directly proportional to the specific gravity of the fluid, the power standard of the blade itself, the third power of the rotating speed and the fifth power of the blade diameter Under certain power and blade form, the discharge volume (q) and head (H) of the blade can be adjusted by changing the matching of the diameter (d) and speed (n) of the blade, that is to say, the large-diameter blade with the low-speed filling and sealing machine can produce higher flow effect and lower head, while the small-diameter blade with the high-speed can produce higher head and lower flow effect 。 In the filling tank of the filling and sealing machine, the effective way to make the micro clusters collide with each other is to provide enough shear rate From the perspective of filling and sealing mechanism, it is because of the existence of fluid velocity difference that the fluid layers are mixed with each other Therefore, the filling process always involves the fluid shear rate lhhaa620 Shear stress is a kind of force, which is the real reason for bubble dispersion and droplet breakage in filling application It must be pointed out that the shear rate of each point in the whole stirred tank is not the same The experimental results show that the large shear rate and the average shear rate increase with the increase of rotating speed when the diameter of the blade is fixed However, when the rotating speed is fixed, the relationship between the large shear rate and the average shear rate and the blade diameter is related to the pulp type When the rotating speed is fixed, the large shear rate of radial blade increases with the increase of blade diameter, while the average shear rate is independent of blade diameter These concepts about the shear rate of the blade area need special attention in the design of the reduction and enlargement of the filling and sealing machine Combined with the actual situation of domestic filling and sealing machine, the filling and sealing machine has a good cost performance, can meet the requirements of enterprises, and has a broad application prospect in many industries, such as medicine industry, health products industry, wine and so on System hardware configuration, PLC selection, I / o point definition and main components selection and layout Through the analysis of the system control process, the system program is designed, and the corresponding system software is compiled to realize the control process of online weighing
Based on the software and hardware design of the system, the control theory of the on-line weighing control system is analyzed, and the control mode adopted by the system is briefly discussed According to the mathematical model and transfer function analysis of the control system, the simulation curve and relevant data obtained from the system model used in this project are used to verify that the system has good stability and achieves the expectation The control function of on-line weighing is realized.