Injection Molding Equipment Structure And Injection Process Scheme Fusion Design Technology And Application For Low-carbon

The injection molding products are widely used in many fields,such as national defense,military industry,building materials,mechanical and electrical,transportation,and so on.The research on low carbon design technology of injection equipment and its process will help to achieve the goal of energy saving and emission reduction in manufacturing industry.The structure low carbon design for the injection molding equipment and the low carbon process scheme design for injection molding are combined in this paper.The fusion design method of injection equipment structure and injection process scheme is proposed.The complex structure low carbon design method and the uncertainty of low carbon process scheme for injection molding equipment are deeply studied.The fusion design system of injection molding equipment structure and injection process scheme for low carbon is developed.The feasibility and effectiveness of this method is verified.The organization of this whole thesis is as follows:In Chapter 1,development trend of digital design for precision injection molding equipment has been analyzed.The necessary for low carbon fusion between structure and process design is proposed.The complex equipment structure design technology,the complex equipment process plan design technology and the low carbon design technology of complex equipment at home and abroad are reviewed subsequently.Then the shortcomings of low carbon design of injection molding equipment and the significance of this research are pointed out.In the end the research content and organization structure of the paper are introduced.In Chapter 2,the confidence intervals expression method of the structural design parameters and process parameters for injection molding equipment is proposed.Those design parameters during the design process design for injection equipment are classified and transformed.The correlation diagram of carbon emission calculation for injection molding equipment and injection process are built respectively.The design nodes and the connection modes are the same between two correlation diagrams,so the combination of the two is combined to form a low carbon fusion association model,which provides the basis for the subsequent low carbon design.In Chapter 3,the structure of the injection equipment is layered,until the feature level of the component is calculated,and the carbon footprint is calculated by layer,on the basis of which the carbon emissions of the precision injection equipment are calculated.The highest carbon emissions part features are found as the starting part features of low carbon design by hierarchical agglomerative low-carbon clustering the part features.A multi Agent dynamic coordination model is established for interactive reinforcement learning by using the Kriging model as a reward function.The optimal structure of injection molding equipment is obtained which meets the requirements of low carbon design.In Chapter 4,the coupling relationship between the process parameters of injection molding process is studied.Those related parameters have been tested in generalized orthogonal method.Low carbon design problem of precision injection molding equipment is described in detail,including process parameters selection of precision injection molding equipment,determination of coupling strength,determination of low carbon index for precision injection molding and mathematical model construction.The process scheme is optimized using generalized orthogonal test method for coupling process parameters.Finally,the optimal solution set is obtained.In Chapter 5,the calculation method of carbon emission for structural and process design is studied.By analyzing the calculation process of carbon emissions from injection molding equipment and injection molding process,the interrelated design parameters and process parameters in the two processes are found.An intelligent matching technology based on ε-SPEA2 is proposed.Using the advantage of this method in the acquisition of target spatial diversity,the fusion calculation of two low carbon design phases is realized.The low carbon fusion process of structure design and process scheme for injection machine is introduced in the end.In Chapter 6,the development of low carbon fusion design system for injection molding equipment structure and injection process and its application in low-carbon design are introduced.After that,the feasibility and effectiveness of the theory,method and technology proposed in this paper are verified.In Chapter 7,the research results of the paper are summarized,and the future research direction is given.