Research On Intelligent Dropping System For Glass Packaging Products

Due to the increasing market demand for glass packaging products at home and abroad and the rapid development of the glass packaging products industry,how to strengthen the development of glass packaging products manufacturing technology,improve the stability of the quality of glass packaging products and improve production efficiency has become a new topic facing the glass packaging products industry.However,by analyzing the current situation of the flow system of the bottle-making machine and the key points of improving the quality and production efficiency of glass packaging products,this paper puts forward a scheme of detecting the weight of glass drops,controlling the weight of the drops and accelerating the delivery of the drops.The feasibility and rationality of the scheme are verified through preliminary tests,calculations and simulation analysis.Firstly,this paper studies the material weight control technology,and calculates the quality of the material drop according to the flow rate by measuring the actual flow rate of the material drop.The key technology of weight measurement is to measure the flow rate of glass drops through electromagnetic flowmeter,and the measured value is transmitted to the upper computer to calculate the actual weight of the drops.The research contents include not only monitoring the drop weight of glass material,but also studying its weight control.The weight control system is realized based on fuzzy PID control.The upper computer sets the output flow value and gives the control signal.The STM32 microcontroller compares the flow set value with the measured value of the flowmeter in real time,calculates the error between the two,and determines the space ratio of PWM(Pulse Width Modulation)wave signal according to the control algorithm.The driving amplification stage amplifies the input PWM signal,drives the actuating element to drive the roller of the feeder to rise and fall,and changes the output of the glass flow.The microcontroller continuously compares the measured flow value with the set value and adjusts the glass flow until the error between the flow value and the set value is reduced to almost zero.Then,the material drop accelerating device is designed.The scheme uses the basic dynamic laws of turbo-charging principle and jet principle to develop the molten glass material drop accelerating device.The accelerating device is designed with an air inlet and an air outlet,with a specially constructed cavity inside and a narrow gap at the air outlet.The air forms a turbine high-pressure airflow in the cavity and a high-speed airflow at the outlet,which drives the air on the central axis of the accelerator to accelerate towards the outlet and forms an accelerated fluid force field.In order to realize acceleration control,the design controls the air intake of the acceleration device based on fuzzy PID control mode to meet the different requirements for the delivery of glass drops in production and achieve the purpose of acceleration and control of glass drops in the dropping process,thus improving the distribution efficiency of the drops and the production efficiency of products.SolidWorks is used to build a three-dimensional model of the acceleration device.At the same time,CFX module in ANSYS is used to analyze the flow field of the acceleration device.The model of the external flow field is established.The flow field is meshed.Data analysis of the internal and external flow fields of the acceleration device is completed according to the flow field pressure diagram,streamline diagram and fluid velocity vector diagram.By analyzing the flow field of the droplet accelerating device under three working conditions,the accelerating effect under different inlet pressures is compared.Finally,the research process is summarized and the realization of intelligent dripping system is summarized.