Design And Research Of Fabric Folding And Packaging Machine

The textile industry is an integral part of the composition of China’s economy,but with the progress of the society and the development of technology,traditional enterprises in the form of labor-based production are already at a low level of backwardness with a significant lack of capacity.Entrusted by an enterprise in Huzhou,Zhejiang,this paper unfolds the design and research of fabric folding and packaging machine to improve the mechanization and automation of fabric packaging and solve the problems of high labor cost and poor quality of fabric packaging in small and medium-sized dyeing and finishing enterprises.Specifically,it includes:(1)The axiomatic design method was used to complete the solution design of the fabric folding packaging machine.Firstly,by analyzing the user requirements,the functional requirements and design parameters of the fabric folding packaging machine were decomposed by two fabric packaging methods: roll-fold and fold-fold;then the independence axiom and information axiom were used to judge the design coupling and evaluate the information quantity of the two solutions respectively.Finally,the folding solution was chosen to start the design and research of fabric folding packaging machine,and the implementation structure of the parts was designed,and the deceleration stepping motor with the photoelectric sensor as the travel switch was selected to realize the operation of the whole machine and complete the design of the timing cycle.(2)A single-degree-of-freedom mechanism with a cam mechanism in tandem wit h a crank-slider mechanism was determined as the fabric folding mechanism,and the dimensioning was carried out.The dimensional parameters of the crank-slider mechan ism were obtained by using vector equations and displacement matrix.The combined motion of "sine-isokinetic-sine" was selected as the pushing motion law of the cam mechanism,and the sine motion was the return motion law,the radius of the base circl e of the cam was determined,the convex contour line was designed,the maximum pre ssure angle was verified to meet the requirements,and the 3D model of the folding me chanism was established.(3)The anti-parallelogram mechanism with the crank slider mechanism on the left and right sides was used as the implementation structure of the auxiliary flipping mechanism to solve the problem of unreliability of the rotating pressure roller mechan ism.The relationship between the expanded members on the active and passive flippe rs with similar motion amplitude was analyzed,and the dimensions of each member w ere determined;the motion relationship between the members was analyzed,and the s imulation analysis of each motion output member was carried out using Adams softwa re.The study shows that the design of the auxiliary folding mechanism meets the expe cted requirements and can be used in actual production.(4)For the design of fabric folding mechanism,the kinematics and dynamics analysis was carried out.Firstly,the kinematic model of the fabric folding mechanism was established,the angular displacement change of the folding plate and the kinematic scale of each component of the folding mechanism were obtained,and the kinematic simulation analysis of the folding mechanism was carried out by using Adams software.Secondly,the kinetic model of the fabric folding mechanism was established,the model analysis was established by mass substitution,the physical model of the pressure on the folding plate caused by the weight of the fabric in the actual working process was established,and the transient kinetic simulation analysis was carried out by importing Ansys software.The study shows that the design of the folding mechanism meets the design expectations and can be used in actual production.