The Mechanism Design And Optimization Of Tubular Bottom-Locked Carton Folding Machine

Tubular bottom-locked carton is a common type of corrugated box for packaging,which has the advantages of reusability,easy printing and forming simply.For single-size selfunlocked tubular cartons,there are many research and applications on their forming machine.For self-locked structure tubular cartons,current relevant research in folding forming mechanism is relatively few.In engineering application,with the emergence of diversified product sizes and customized requirements,it is an inevitable trend for folding machines to be compatible and flexible with the opening and forming of different sized cartons.In this context,this article has conducted relevant research on the mechanism design and optimization of tubular bottom-locked carton folding machine.Firstly,based on the principle of metamorphic mechanism,the configuration of before and after opened status of a tubular bottom locked carton was studied,and it is found that the structural changes of the carton opening forming process is instable.The design and optimization of the folding machine mechanism should meet the requirements of carton size compatibility while also ensure the stability of the opening forming process.According to the survey,the size of cartons which machine folding,length is from 300 mm to 600 mm,width is from 50 mm to 100 mm,and height is from 200 mm to 500 mm.Secondly,the mechanism of the carton folding machine is designed and optimized in the way of complete-module.A box folding machine designed and optimized based on people,machines,materials,methods,environment,safety,and engineering applications.The storage capacity of the silo module is twice than ordinary box opening and folding machines,which reduced the loading times and difficulty,and saved manpower.The overall dimension of the entire machine is less than 2 meters though rationalizing layout of modules.The outlet module can set the mode according to the needs of the use scenario,which is flexible in application.The carton opening and forming mechanism can float,so it can complete folding different sizes carton.The dynamic rotating plate and the rotating floating plate are designed to transmit the force through springs,which can ensure not only the stability of the carton opening and forming,but also to avoid the poor quality of carton in opening and forming process.The design of a size measuring mechanism reduced the floating range and the difficulty of mechanism design,which also cut down the costs.Finally,the kinematic analysis of box-opened mechanism and Solidworks motion simulation analysis of floating rotating plate equivalent mechanism is carried out.Kinematics analysis obtained the projection range of the forming trajectory of different size cartons,which coincided with the motion trajectory of the equivalent bar simulation,and verified the rationality of the design.The rack is assembled using 4040 and 4080 profiles,and its ANSYS finite element static analysis verifies that the rack design meets the requirements.Above all,the design of the folding machine aims to provide a design method of the carton folding machine that can meet multiple used scenario and different carton size.It is proposed to optimize the actuating mechanism of the folding machine by analyzing the principle of carton opening and forming,which is of certain significance to reduce carton defects by the folding machine in box-opened forming process.