Dynamic Performance Analysis Of Carding Machine And Optimization Design Of Main Cylinder Frame Structure

The nonwoven fabric formed by carding,needling,or hydroentanglement of short fibers into a web is not only short in process and low in manufacturing cost but also has the characteristics of purely physical processing.No chemical addition of green textiles,and is widely used as a disposable textile material.As an important piece of equipment in the nonwoven production line,the card’s operating quality and speed directly affect the efficient operation of the line.The stability of the card is a technical problem that limits the efficiency and capacity of the production line.In this paper,we analyze the kinetic performance characteristics of the carding machine and optimize its structure to improve the working performance and stability,and then increase its working speed.In this paper,modern design methods such as mechanical dynamics and optimization design are applied to model the carding system dynamics,analyze its dynamic characteristics and optimize the frame structure.To provide technical support for improving the performance of existing carding machines and developing new carding equipment,the main research contents and results of the full paper are as follows:(1)Analyze the working principle and structural composition of the carding machine,establish the CAD model of the carding system on the Solidworks platform,and make reasonable simplifications.The characteristics and operating conditions of the card drive system are analyzed,the main working conditions are clarified,and the working load distribution of the card system is determined by combining the card drive characteristics.(2)Import the simplified CAD model of the carding system into the ANSYS Workbench platform,establish its CAE model,and perform static,modal,and harmonic response analysis of the carding system to reveal its deformation,inherent frequency,vibration characteristics,etc.(3)Structural optimization of the carding system to ensure that the carding system can effectively avoid the resonance frequency range after the main cylinder is speeded up.The lightweight design of the main cylinder reduces its rotational inertia and increases the speed of the main cylinder,which is beneficial to the speed and efficiency of the carding machine.The calculation method of the main cylinder load distribution,the kinetic analysis,and the optimization results of the structural parameters constructed in this paper provide technical guidance for the programmed analysis of the carding machine and the development of the carding machine.