Research On The Key Technology Of The New Unwinding Machine

The unwinding machine is an essential pre-dyeing equipment in the production process of printing and dyeing enterprises.In recent years,with the acceleration of the country's industrialization process,intelligent production has been hotly discussed in the country,and the automation upgrade of the unwinding machine has gradually gained attention.The unwinding machine can speed up the production efficiency of the predyeing process,but with the emergence of national labor structure,industry competition,raw material price growth and other issues,we continue to urgently reduce enterprise costs through intelligent production.The key technology research of the new unwinding machine aims to A new unwinder equipment is proposed to meet the needs of automated production.In this regard,the following work has been done:After actual investigation,I have learned about the process links of the unwinding machine and the pre-dyeing process,and I am familiar with the main process functions and labor requirements of the unwinding machine.And consult the relevant patent information of the unwinder at home and abroad,and combine the main deficiencies and defects of the unwinder in the production,put forward several key unwinders,and propose a new type of unwinder.The three-dimensional structure and principle of the winding machine are divided into five systems,the key technology of the new unwinding machine is explained in detail,and a prototype is made.The seam head system is the core technology of the unwinder.In order to ensure the rationality of the technology,the Ansys Workbench finite element analysis software is used to analyze the seam head system statically,and the dynamic transmission model is established,and the natural frequency analysis of the system is carried out.The secondorder modal analysis shows the resonant frequency range of the seam head system.In order to ensure the feasibility of the equipment,the Admas kinematics simulation software is used to simulate the sewing head,unwinding,and transportation system.The motion simulation calculates the T-shaped pallet,cloth slot,and suction of the moving parts of the system by planning the cycle time of the system.Displacement,velocity,acceleration motion parameters of the board.The innovative points of the new unwinding machine: 1.Seam head system.The cloth stitching process is free from manual sewing,and a mechanical structure for unmanned completion of the seam process is proposed,and key components such as Tshaped pallets and cloth trimmers are designed to realize the unmanned seam process.2.Uncoiling system.To overcome the difficulty of manually peeling off the grey fabric roll,a new unwinding method is proposed,and an air suction plate and a cloth cover are designed to complete the unmanned unwinding process.3.On the basis of realizing unmanned operation,compared with the two pre-dyeing processes included in the unwinding machine,the new unwinding machine includes four process steps: unwinding,arranging cloth,sewing head,and unwinding.