Rosin Fluid Automatic Quantitative Measurement Of Packaging Control

The automatic quota measurement packing technology is a new technology which these years only then develops, many research departments are preparing, to be engaged in the research development work. Intelligent control and optimization technology are applied to the dynamic quota packing weighing system to solute weighing precision and the weighing speed coordinated questions. It has aroused people's interest. If can find a better method to be able to satisfy the automated production the rapidity and the measurement accurate request and can successfully apply in the actual weighing, it inevitably has the huge practical value.The research of the rosin automatic quota measurement packing weighing system's control method involves the measuring element characteristic, the packing system's static and dynamic mathematical model, Impulse dynamic adjustment method, The packing control strategy as well as dropping variance' s elimination and system optimization. Based on the measurement packing knowledge, this paper emphatically discusses the rosin fluid impulse's dynamic adjustment method and integral separated the PID control algorithm based on the intermittent type advanced version integral the control strategy of the measurement packing system, passes in and out the flow characteristic in view of the rosin fluid concrete characteristic, determined the control method that suits the rosin automatic quota measurement packing system. The paper mainly solves:First, determination system model and design system dynamic compensator. From the research of the dynamic measurement packing system's performance, the paper establishes the system's dynamic model, determines the resistance strain sensor based on pressed anti- effect, its output voltage changes along with the material's whereabouts and the mass variation.Second, solves the question of the rosin current capacity which is unstable and difficult to measurement. Through introducing the buffer stables thecurrent capacity, determines the speed of flow according to the mass conservation theorem and the energy-conservation equation, we solve the rosin current capacity measurement or the current capacity stable question.Third, solves the impulse that rosin fluid brings to the weighing installment and realizes dynamic compensation. The impulse influence is a factor which produces weighing error. Through the convection body mechanics discussion and the research of rosin fluid, obtains the method to reduce the impulse under the elbow piece condition and the impulse computational method. It enables the impulse of the rosin fluid to compensate dynamically.Fourth, solves the influence that dropping variance brings to the system and discusses elimination method. Through the analysis which dropping variance forms, uses the hardware and the software method, on software uses an automatic zero track, dropping variance revision, the erroneous judgment and so on to revise control quantity gradually on-line, so causes the system optimization.Fifth, solves rosin measurement packing rapidity and precision control method. Through the analysis of dynamic weighing system's control strategy and the integral separate PID control algorithm theory, designs the high accuracy intermittence type advanced version integral separate PID control algorithm controller. The paper discusses the realization of intermittent type advanced version integral separate PID control algorithm based on the PLC procedure, and uses in rosin measurement packing dynamic weighing analogous system, provides the basis for fast, accurate packing.Finally, experiments are carried out to verify the feasibility of the research conclusion.