Design And Optimization Of Angle Adjustment Bracket For Touch Input Screen

With the continuous development of electronic information technology and the rapid development of retail and service industries,touch screen has been applied more and more widely in daily work and life,and the requirements are more higher.The size of touch screen is also more larger.In order to adapt to different postures,different height of users and different height of tables placed,etc.Because of the environment,the angle of touch input screen must be adjustable,and it should be fast,convenient and simple to adjust the angle.In this paper,the design and validation of a complete engineering project of the angle adjustment mechanism of touch input screen are carried out by using TRIZ innovative theory for product design,static analysis of the assembly,assembly and operation experiments using 3D printed product samples,injection mold design of the product,and die flow analysis.The practicability and rationality of the product are verified.This project uses ARIZ algorithm in TRIZ technology innovation method to solve the principle of angle adjustment mechanism of touch input screen.After resolving the technical contradiction of products,it uses the principle of plane four-bar mechanism to design the structure.The angle adjustment mechanism is designed by the experimental method in the design method of four-bar mechanism,and the length ratio of each bar is determined,so that the adjustable angle range is wider,reaching 35 degrees.Combining the design theory of plastic product structure and the design theory for manufacturing and assembly,the design of three-dimensional solid appearance and structure of touch screen angle adjusting mechanism is completed by using Pro/ENGINEER three-dimensional product design software,and the unreasonable design such as interference and excessive clearance is checked by simulation assembly.The assembly of horizontal and vertical touch screen angle adjustment mechanism model is analyzed by Solidworks Simulation finite element analysis software.The structural strength of touch input screen angle adjustment mechanism meets the designand use requirements.Using 3D printer rapid prototyping product prototype,through the installation operation,stress detection and service life experiment of product prototype,the design defects of various parts of the product are found,and the structure of the product is further optimized,so that the assembly process and structure design of the product are more reasonable and the design structure is stable and reliable.More practical purpose.Using UG three-dimensional mold design software,the injection mold of each part of the touch screen angle adjustment mechanism was designed,and the flow analysis of the main parts of the mold was carried out.From the analysis results,it can be seen that the filling quality of the mold is good,the flow is balanced,the waterway design is reasonable,and the cooling effect is good.Through the flow analysis,the injection molding time is better improved.Pass rate.The product has a wider range of applications,simple structure,compact size,easy operation,conforms to ergonomics,low cost,and provides certain theoretical value for the promotion and application of touch input screen angle adjustment mechanism.