Research And Experiment On Acceleration Principle Of 120-ton Injection Molding Machine Using Accumulator

High-speed injection molding machine is mainly reflected in the injection speed. High-speed injection molding machine occupies an important position in the development of modern injection machines, which can not only improve the production efficiency, but also can improve the product quality. Use the accumulator is a kind of method to improve the speed of injection molding machine. In this paper,120 tons high-speed injection molding machine useing accumulator will be designed.In chapter 1, In the introduction, the principle and the typical hydraulic system of injection molding machine were briefly discussed, and based on this, displays the research background, the research significance, the research content of this paper.In chapter 2, Design of high-speed growth throttle principle for a injection molding machine using accumulator, a detailed analysis of the servo valve or proportional servo valve program, proportional valve control program, proportional valve pilot control valve solutions and high-speed switching advantages and disadvantages of the pilot control scheme. The system of prototype use the proportional valve program and designed with accumulator, proportional valve and other related components.In chapter 3, Establish proportional valve-control of this high-speed machine system of mathematics and simulation model. Theoretical analysis of the system performance tart appearing on the impact of the system to be analyzed and presented effective solutions of accumulator control parameters were studied. Experiments show that the system meets the design requirements.In chapter 4, For high-speed on-off valves pilot control scheme theory design, Through theoretical modeling and simulation analysis of key fluid resistance of the system, the modulation frequency, duty cycle and the structural parameters on system performance. Simulation results show the feasibility of the system, the design of physical it lays foundation.In chapter 5, all of achievements of the dissertation are summarized and the further research work, which will be done, is put forward.